JP2019504713A - Vacuum cleaner - Google Patents

Abstract

Provide vacuum cleaner. Vacuum cleaner main body; suction hose connected to the vacuum cleaner main body for sucking in dust; moving wheel mounted on the main body of the vacuum cleaner; provided inside the main body of the vacuum cleaner and generating a suction force for sucking in dust A motor; a base frame provided in the main body of the vacuum cleaner and forming a space partitioned from the main motor; a battery unit provided in the base frame for supplying power; on a rear surface of the main body of the vacuum cleaner A rear opening formed to open and close the battery unit; a rear cover for opening and closing the rear opening; and extending on both sides of the base frame toward the rear opening. A battery guide for guiding the drawer. [Selection] Figure 5

Description

  The present invention relates to a vacuum cleaner.

  In general, a vacuum cleaner is a device that filters dust and foreign matter inside the main body after sucking in dust and foreign matter existing on the surface to be cleaned using a main motor provided inside the main body.

  The vacuum cleaner as described above includes an up-right type vacuum cleaner in which a suction nozzle is connected to the main body and moves together with the main body, and the suction nozzle is connected to the main body by an extension pipe, a handle, a hose or the like. A canister type vacuum cleaner can be distinguished.

  Prior art Korean published patent publication No. 10-2012-0004100 (publication date: Jan. 12, 2012) discloses contents relating to a canister type vacuum cleaner.

  The present invention provides a vacuum cleaner in which a battery unit is disposed at the rear of a vacuum cleaner body so that the center of gravity of the vacuum cleaner body is further rearward, and the vacuum cleaner is capable of maintaining a more stable stop state and sensing a running state. The purpose is to provide.

  An object of this invention is to provide the vacuum cleaner which can remove | desorb a battery unit easily.

  An object of this invention is to provide the vacuum cleaner which can maintain the mounting state of a battery unit stably.

  An object of this invention is to provide the vacuum cleaner which can cool a battery unit effectively.

  A vacuum cleaner according to an embodiment of the present invention is provided in the main body of the cleaner and generates a suction force for sucking dust, and is provided in the main body of the cleaner. A base frame that forms a partitioned space, a battery unit for supplying power, a rear opening opened on a rear surface of the cleaner body, and opening and closing the rear opening. A rear cover; and a battery guide formed on both side surfaces of the base frame for guiding insertion and extraction of the battery unit.

  In addition, a battery restraining portion that restrains both side surfaces of the battery unit in a state where the battery unit is completely inserted may be formed at an end of the battery guide.

  The base frame may be provided with a battery terminal that is electrically connected to the battery unit in a state where the battery unit is completely inserted along the battery guide.

  In addition, a terminal mounting portion is exposed on the lower surface of the vacuum cleaner main body to expose a power supply terminal for charging the battery unit in a state where the battery unit is completely inserted along the battery guide. Also good.

  The main motor is disposed above the base frame, and a frame hole is formed on the upper surface of the base frame through which air discharged from the main motor flows into a space in which the battery unit is accommodated. Also good.

  The cleaner body may be provided with a filter unit that purifies the air passing through the frame hole.

  In addition, a battery grill is formed on the upper surface of the battery case and the rear surface of the battery case so that air can flow into the inside of the battery case from above to cool the secondary battery and be discharged backward. Also good.

  The rear cover may further include a discharge port for discharging air to a position corresponding to the battery grill on the rear surface of the battery case.

  The battery unit may have an upper surface and a lower surface that are wider than a peripheral surface, and the upper surface and the lower surface of the battery unit may be disposed horizontally with the bottom surface of the cleaner body.

  The battery unit may have an upper surface and a lower surface wider than a peripheral surface, and the frame may be formed with a frame hole that is opened so that air discharged from the main motor is directed toward the upper surface of the battery unit. .

  According to the vacuum cleaner according to the embodiment of the present invention, the following effects can be expected.

  The vacuum cleaner according to the embodiment of the present invention has a structure in which a rear opening is formed on the rear surface of the cleaner body, and the battery unit attached to the cleaner body can be easily detached by opening and closing the rear opening. There is an advantage that usability is improved.

  And the battery fixing | fixed part and battery fixing member for fixing the said battery unit are formed, and there exists an advantage that the mounting state of the said battery can be maintained stably. In addition, since the battery fixing member has a structure that is molded and assembled from another material, it does not need to be damaged even when the battery is repeatedly attached and detached, and the battery unit can be effectively fixed.

  A plate hole into which air flows is formed in the base frame in which the battery unit is accommodated, and air is directed to the battery unit through the plate hole, so that the cooling efficiency of the battery can be improved.

  In addition, the battery case of the battery unit has a discharge port through which air passes on the upper surface corresponding to the plate hole and the rear surface corresponding to the rear cover, so that the battery unit is more effectively cooled by the flowing air. There are advantages.

  In addition, the base frame is provided with a filter unit, so that even fine dust in the air for cooling the battery unit can be filtered, and contamination of the battery unit by dust can be prevented.

  Also, the center of gravity of the vacuum cleaner can be more easily located rearward by arranging a battery unit that provides power for vacuum cleaner operation in the rear half of the vacuum cleaner body. Can be detected more easily.

  In the vacuum cleaner according to the embodiment of the present invention, the center of gravity of the vacuum cleaner main body is placed in the second half, so that the vacuum cleaner main body can rotate around the moving wheel, and can maintain a stable support state in contact with the ground. .

  The center of gravity is located in the second half, and when the cleaner stops running, the cleaner body rotates and tilts, and when the cleaner body runs, it rotates and changes in angle. It is possible to accurately determine whether the machine is stopped or moving.

  In addition, a sensing unit that senses the posture of the main body, that is, the gradient or the rotation angle, is provided in the cleaner main body. And, since the suction hose has a structure connected to the upper part of the main body, when the user pulls the suction hose for the movement of the vacuum cleaner, the main body tilts, and the moving wheel is moved by the sensing unit that senses this. It comes to drive.

  Accordingly, even if the user does not pull and move the main body itself, the main body can automatically run by a light operation that can move the suction hose, and the main body can run with respect to the user when the user moves. Goodness can be improved.

  In particular, since the vacuum cleaner body is always stopped while maintaining a constant gradient of the cleaner body regardless of the presence or absence of dust in the dust collection box or the amount of dust, the gradient sensing reliability of the sensing unit can be improved.

It is a perspective view of the vacuum cleaner which concerns on the Example of this invention. It is a figure which shows a mode that the said vacuum cleaner main body and the suction device were isolate | separated. It is a figure which shows a mode that the dust collection box was isolate | separated from the said vacuum cleaner main body. It is a figure which shows a mode that the cover member of the said vacuum cleaner main body opened. It is a disassembled perspective view of the said vacuum cleaner main body. FIG. 3 is an exploded perspective view in which a pre-filter assembly according to an embodiment of the present invention is opened. It is sectional drawing of the said vacuum cleaner main body. It is a top view of the cleaner body with the cover member removed. It is the disassembled perspective view which looked at the combined structure of the said cleaner body, a moving wheel, and a sensing part from one direction. It is the disassembled perspective view which looked at the coupling structure of the said cleaner body, a moving wheel, and a sensing part from the other direction. It is a side view which shows the mounting state of the said vacuum cleaner main body and a wheel gear assembly. It is a side view of the said vacuum cleaner main body. It is a bottom view of the said vacuum cleaner main body. It is a disassembled perspective view which shows the coupling | bonding structure of the rear wheel unit which concerns on the Example of this invention. It is sectional drawing which shows the operating state of the said rear wheel unit. It is a rear view in which the rear cover of the cleaner body is opened. It is a disassembled perspective view which shows the joint structure of the battery and filter which concern on the Example of this invention. It is sectional drawing of the said vacuum cleaner main body of the state before the said battery is mounted | worn. It is sectional drawing of the said vacuum cleaner main body of the state with which the said battery was mounted | worn. It is a perspective view of the cover member. It is a disassembled perspective view of the said cover member. It is a partial cross-sectional view which shows the coupling structure of the said cover member and an obstruction detection member. FIG. 3 is an exploded perspective view illustrating a coupling structure of a locking assembly according to an embodiment of the present invention. It is a perspective view which shows the state before operation of the said locking assembly. It is sectional drawing which shows the state before operation of the said locking assembly. It is a perspective view which shows the operation state of the said locking assembly. It is sectional drawing which shows the operation state of the said locking assembly. It is a top view of the said cover member in the state where the display concerning the example of the present invention was turned off. FIG. 6 is a plan view of the cover member in a state where a display according to an embodiment of the present invention is turned on. It is the perspective view in which the said cover member was open | released. FIG. 3 is an exploded perspective view showing a link assembly coupling structure according to an embodiment of the present invention. It is sectional drawing which shows the state of the link assembly in the state where the said cover member was closed. It is sectional drawing which shows the state of the link assembly in the state where the said cover member was open | released. It is an enlarged view of the A section of FIG. It is a fragmentary perspective view which shows the structure of the cover member coupling | bond part which concerns on the Example of this invention, and arrangement | positioning of a display cable. It is a figure which shows the cable arrangement | positioning state inside the cover base of the said cover member. It is a figure which shows the connection structure to the cleaner body side of the said electric wire. It is a perspective view of the dust collection box. It is a disassembled perspective view of the said dust collection box. It is the disassembled perspective view which looked at the combined structure of the upper cover and lower cover of the said dust collection box from the one side. FIG. 3 is a cross-sectional view of the upper cover that is opened. It is the disassembled perspective view which looked at the connection structure of the upper cover and lower cover of the said dust collection box from the other side. FIG. 3 is a cross-sectional view with the lower cover opened. It is a disassembled perspective view which shows the coupling structure of the said lower cover and a dust compression unit. It is an enlarged view of the B section of FIG. It is sectional drawing which shows the flow of the air of the said cleaner body, and garbage. It is a top view which shows the flow of the air and dust of the said cleaner body. It is a figure which shows the stop state of the said cleaner body. It is a figure which shows the driving | running state of the said cleaner body. It is a figure which shows the obstruction avoidance running state of the said vacuum cleaner main body. It is a figure which shows the sensing range of the said obstacle sensing member. It is a figure which shows the wall surface running state of the said cleaner body. It is a figure which shows a mode that the main-body part of the vacuum cleaner main body which concerns on the other Example of this invention inclined forward. It is a figure which shows a mode that the said main-body part inclined backward. It is a figure which shows the structure of the support part which concerns on the other Example of this invention. It is a figure which shows a mode that a battery is couple | bonded with the said cleaner body sequentially. It is a figure which shows a mode that a battery is isolate | separated from the said cleaner body.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments in which the idea of the present invention is presented, and within the idea of other inventions that are regressive by adding, changing, or deleting other components. Other embodiments included in can be easily proposed.

  FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention. And FIG. 2 is a figure which shows a mode that the said vacuum cleaner main body and the suction device were isolate | separated.

  As illustrated, the vacuum cleaner 1 according to the embodiment of the present invention includes a cleaner body 10 and a suction device 20.

  A motor for generating a suction force is provided inside the cleaner body 10. When the motor is driven and a suction force is generated, the suction device 20 can guide the air containing dust to the cleaner body 10.

  The suction device 20 may include a suction portion 21 for sucking dust on a cleaning surface, for example, a floor surface, and a connecting portion for connecting the suction portion 21 to the cleaner body 10. The connection part may include an extension pipe 22 connected to the suction part 21, a handle 23 connected to the extension pipe 22, and a suction hose 24 that connects the handle 23 to the main body 10.

  The suction hose 24 may be provided with a fitting portion 241 for improving airtightness when coupled to the connector 401 of the cleaner body 10.

  The fitting part 241 can attach and detach the suction hose 24 to and from the connector 401. The fitting part 241 may be formed in multiple stages as illustrated.

  The vacuum cleaner body 10 includes a main body 30 and a cover member 40 that form an overall appearance.

  The cleaner body 10 may further include a moving wheel 60 that is rotatably coupled to the body portion 30. The moving wheels 60 may be provided as a pair and coupled to both sides of the main body 30. The moving wheel 60 supports the main body 30 so that the main body 30 can rotate about the rotation center of the moving wheel 60.

  The cover member 40 may be provided with a grip portion 41 for a user to hold. The user can grip the grip portion 41 when lifting or tilting the main body portion 30 or opening and closing the cover member 40.

  A rear cover 314 that can be opened and closed may be provided on the rear surface of the main body 30. The rear cover 314 may be formed so as to open and close a space in which the battery unit 38 and the filter unit 39 are accommodated in the main body 30.

  The vacuum cleaner main body 10 further includes a dust collection box 50 in which garbage sucked from the suction device 20 is stored. The dust collection box 50 can be formed in a cylindrical shape as shown in the figure, but is not limited to such a shape. The dust collection box 50 may be detachably provided on the front surface of the main body 30.

  And FIG. 3 is a figure which shows a mode that the dust collection box was isolate | separated from the said cleaner body. And FIG. 4 is a figure which shows a mode that the cover member of the said vacuum cleaner main body opened.

  As illustrated, the dust collection box 50 can be detachably attached to a seating portion 32 formed in the front half of the main body 30. The dust collection box 50 may form a part of the front surface of the main body 30 in a state where the dust collection box 50 is mounted on the seating portion 32. The dust collection box 50 can be detached by opening and closing the cover member 40.

  The dust collection box 50 may be provided with a suction port 511 through which dust is sucked. The suction port 511 may be disposed on the upper surface of the dust collection box 50 as illustrated. As a result, the air flowing into the suction port 511 is guided downward and moves to the dust collection space inside the dust collection box 50.

  The dust collection box 50 can be detachably attached to the main body 30. A dust collection space in which dust flowing in from the suction port 511 is collected may be formed in the dust collection box 50.

  The dust collection box 50 is provided in front of the main body 30, and at least a part of the side surface of the dust collection box 50 is made of a transparent material so that a user can check the dust collected in the dust collection space. Can be configured.

  In a state where the dust collection box 50 is seated on the seat portion 32, the side surface portion is exposed from the front surface of the main body portion 30. At this time, the exposed portion of the dust collection box 50 is from the upper end to the lower end of the transparent side surface of the dust collection box 50, and in fact, the entire space in which the dust is collected is separated from the dust collection box 50. Can be confirmed without.

  A dust separation structure for separating air and dust sucked from the suction device 20 from each other is provided inside the dust collection box 50, and the dust separated by the dust separation structure is disposed below the dust collection box 50. Can be collected.

  The connector 401 is directly connected to the suction hose 24 so that air containing dust can flow in. That is, the connector 401 has one side coupled to the suction hose 24 and the other side coupled to the suction port 511. Accordingly, the connector 401 connects the suction hose 24 and the suction port 511.

  The connector 401 can communicate with the dust collection box 50. As a result, the air flowing in from the suction hose 24 can flow into the dust collection box 50 through the connector 401.

  A suction port 511 through which dust flows can be provided on one side of the dust collection box 50. The suction port 511 may be provided at an upper portion of the dust collection box 50 as illustrated. The suction port 511 may be formed to face forward. Here, the front refers to a portion where the suction hose 24 is positioned with respect to the cleaner body 10.

  As shown in the figure, the connector 401 may be disposed on the dust collection box 50. By arranging both the suction port 511 and the connector 401 at the upper part of the dust collection box 50, the flow path length of the air flowing from the suction hose 24 can be minimized.

  The cleaner body 10 further includes a cover member 40 that is movably provided on the body portion 30. The cover member 40 may be configured to form at least a part of the upper surface of the cleaner body 10 and to open and close the upper surface of the main body 30. At this time, the cover member 40 has a rear end that is axially coupled to the main body portion 30 and can be rotated, and the cover member 40 can be opened by rotating the grip portion 41.

  The connector 401 may be provided on the cover member 40. Accordingly, the connector 401 can move together with the cover member 40. The cover member 40 can shield at least one side of the dust collection box 50. The cover member 40 may be coupled to the dust collection box 50 at the same time as shielding at least one side of the dust collection box 50. When the cover member 40 is closed, it is combined with the dust collection box 50, and when the cover member 40 is opened, it can be separated from the dust collection box 50. For example, the cover member 40 may be coupled to the upper portion of the dust collection box 50.

  When the cover member 40 is closed, the fitting portion 241 of the suction hose 24 connected to the connector 401 of the cover member 40 can communicate with the suction port 511 of the dust collection box 50. Accordingly, dust and air sucked from the suction device 20 can pass through the connector 401 of the cover member 40 and flow into the dust collection box 50 from the suction port 511.

  When the cover member 40 is open, the fitting portion 241 of the suction hose 24 is kept connected to the connector 401 of the cover member 40, and the cover member 40 and the dust collection box 50 are separated. obtain. Accordingly, the dust collection box 50 can be separated from the seating portion 32 with the cover member 40 open.

  Hereinafter, the cleaner body 10 will be described in more detail.

  FIG. 5 is an exploded perspective view of the cleaner body. FIG. 6 is an exploded perspective view in which the prefilter assembly according to the embodiment of the present invention is opened. FIG. 7 is a cross-sectional view of the cleaner body. FIG. 8 is a plan view of the cleaner body with the cover member removed.

  As illustrated, the cleaner body 10 may include the main body 30 and the cover member 40, and the dust collection box 50 may be attached to the main body 30.

  The main body 30 includes a base 31 that forms a bottom of the cleaner body 10 and provides a space in which the dust collection box 50, the battery unit 38, the filter unit 39, and the main motor 35 are mounted. it can.

  The base 31 includes a front half 312, a central part 311, and a rear half 313. The base 31 is formed to have a predetermined width, and includes the dust collection box 50, the battery unit 38, the filter unit 39, and the like. It is possible to provide a space in which can be mounted.

  A central portion 311 of the base 31 is formed in a planar shape and may be disposed between the front half 312 and the rear half 313. At this time, the front half part 312 and the rear half part 313 are formed so as to be inclined with respect to the central part 311, and may be formed so as to become higher as the distance from the end part of the central part 311 increases.

  A terminal mounting portion 311 a where the power supply terminal 307 is disposed may be formed at one side end of the central portion 311, that is, at a position adjacent to the moving wheel 60. The terminal mounting part 311a may be formed in a recessed shape so that the lower surface is opened, and may be configured to be connected to a terminal of a charging device when the battery unit 38 of the cleaner 1 is to be charged.

  A rear wheel unit 70 may be provided at a position adjacent to the rear half 313 in the central portion 311. The rear wheel unit 70 can prevent the cleaner body 10 from falling backward while the cleaner 1 is in use. The rear wheel unit 70 can maintain the base 31 at a set angle in a stopped state. For this reason, in a stopped state where the cleaner body 10 does not travel, the rear wheel unit 70 is in contact with the ground and the central portion 311. It may be configured to elastically support the cleaner body 10.

  A front half 312 is formed at the front end of the central portion 311. The front half 312 extends from the end of the central portion 311 so as to incline upward, and the front half 312 may be provided with a seating portion 32 that forms a space in which the dust collection box 50 is accommodated.

  The seat portion 32 may include a bottom surface portion 321 that forms a bottom, and a surrounding portion 322 that extends upward along the periphery of the bottom surface portion 321. The peripheral portion 322 is formed to be opened forward so that the dust collection box 50 can be attached thereto.

  A compression motor assembly 323 for driving the dust compression unit 56 inside the dust collection box 50 may be provided between the bottom surface portion 321 and the front half portion 312. When the dust collection box 50 is mounted on the seat portion 32, the compression motor assembly 323 and a dust compression unit 56, which will be described in detail later, are connected to each other, and the dust compression unit 56 can be driven.

  The compression motor assembly 323 may include a compression motor 323a that provides rotational power and a compression gear 323b that is coupled to a rotation shaft of the compression motor 323a. The compression gear 323b may be located at a position eccentric from the center of the bottom surface portion 321 to one side. The bottom surface portion 321 is formed with an open bottom surface hole 321a, and a first transmission gear 591 described later can be positioned in the bottom surface hole 321a when the dust collection box 50 is seated. Accordingly, when the dust collection box 50 is mounted, the compression gear 323b is coupled to the first transmission gear 591 so that the power of the compression motor 323a can be transmitted.

  A front wheel 312 a may be mounted on the lower surface of the front half 312. The front wheel 312a is located slightly in front of the center of the front half 312. When there is an obstacle such as a carpet or a sill in front of the cleaner body 10, the front wheel 312a can easily move over the obstacle. Like that. The front wheel 312a may rotate in contact with the ground so that the cleaner body 10 does not fall forward when the cleaner body 10 tilts forward.

  The rear half 313 may also be formed so as to incline upward from the rear end of the central portion 311. Therefore, when the cleaner body 10 starts to move forward for traveling, the cleaner is inclined with the moving wheel 60 as an axis, thereby facilitating the rotation of the cleaner body 10. Can do.

  The rear half 313 may be formed with at least a part of a rear opening 317 that is opened and closed by the rear cover 314. The rear cover 314 forms the same curved surface as the lower part 313 and the lower decoration 315 and the upper decoration 37 that form the appearance of the rear half 313 and the cleaner body 10 in a state of shielding the rear opening 317. . The rear cover 314 is a part of the rear half and may be formed to have the same inclination or curved surface as the rear half 313.

  The rear cover 314 may be formed on a part of the rear surface of the main body 30. The lower end of the rear cover 314 is rotatably coupled to the rear half, and the rear opening 317 can be opened and closed by turning. The rear cover 314 is formed with a grill through which the air separated from the dust is discharged while passing through the interior of the cleaner body 10, and the dust filtered air can be discharged.

  Meanwhile, a base frame is attached to the center of the base 31. The base frame is formed so as to partition a space in which the dust collection box 50 is disposed, a space in which the main motor 35 is provided, and a space in which the battery unit 38 and the filter unit 39 are provided. .

  Specifically, the base frame may include a lower frame 33 and an upper frame 34.

  The lower frame 33 is attached to the central portion 311 and includes a first barrier 331 that divides a part of the internal space of the main body 30 in the front-rear direction, and a pair of first barriers that extend from both side ends of the first barrier 331. 1 sidewall 332 may be included. A main body for controlling the driving of the vacuum cleaner 1 including the main motor 35, the wheel motor assembly 63, the compression motor assembly 323, and the obstacle sensing member 44 is disposed on the front surface of the first barrier 331. A PCB 301 may be provided.

  A lower seating member 300 may be provided on the front surface of the first barrier 331. The lower seating member 300 may be formed in a shape having a depressed center so that the side surface of the dust collection box 50 can be supported when the dust collection box 50 is mounted. The main PCB 301 attached to the front surface of the first barrier 331 may be accommodated inside the lower seating member 300.

  A noise filter 302 for removing noise from the input power supplied to the main PCB 301 is provided on the rear surface of the first barrier 331. The noise filter 302 may be an EMI filter.

  At this time, the first barrier 331 between the main PCB 301 and the noise filter 302 is formed with a first barrier hole 331a serving as an air flow path. Accordingly, the main PCB 301 and the noise filter 302 can be naturally cooled by the air passing through the first barrier hole 331a.

  The lower frame 33 is opened upward and rearward when mounted on the base 31, and an upper frame 34 is mounted on the upper end of the lower frame 33. The upper frame 34 shields the opened upper surface of the lower frame 33 to form a space in which the battery unit 38 and the filter unit 39 are accommodated. And the space where the main motor 35 for air suction is provided is formed.

  Specifically, the upper frame 34 may include a cover plate 341, a second barrier 342, and a second sidewall 343.

  The second barrier 342 divides the upper space of the main body 30 forward and backward, forms a space where a pre-filter assembly 36 connected to the dust collection box 50 is provided in the front, and the main motor 35 is located in the rear. A space to be provided is formed.

  A second barrier hole 342a is formed in the second barrier 342, and fine dust is filtered while the air that has passed through the dust collection box 50 when the main motor 35 is driven passes through the prefilter assembly 36. Air filtered through the pre-filter assembly 36 passes through the main motor 35.

  Front barrier walls 344 extending forward are formed at both ends of the second barrier 342 to form a space for accommodating the pre-filter assembly 36.

  The pre-filter assembly 36 may include a pre-filter case 361 that is in close contact with the dust collection box 50 and a pre-filter body 362 that is coupled to the pre-filter case 361 and accommodates a filter member 363 therein.

  The pre-filter case 361 and the pre-filter body 362 may be configured to form a space inside to accommodate the filter member 363 in a coupled state, and to be coupled to each other so as to be opened and closed. . Accordingly, the prefilter case 361 can be opened and the filter member 363 can be removed from the prefilter body 362.

  The filter member 363 is used to secondarily filter fine dust that has not been separated by the dust collection box 50 for filtering dust and foreign matter in the primary, and in the air flowing into the inside of the main motor 35. It is configured to remove fine dust. On the other hand, the air that has passed through the filter member 363 and the main motor 35 can be filtered by the filter unit 39, which will be described in detail later, in the third order, and after the battery unit 38 is cooled, the air can be discharged to the outside.

  Referring to FIG. 6, the prefilter assembly 36 will be described in more detail. The prefilter assembly 36 has a structure in which the filter member 363 is accommodated inside the prefilter body 362 and is shielded by the prefilter case 361. Have

  The prefilter case 361 may be exposed forward in a state where the prefilter assembly 36 is mounted on the upper frame 34. The front surface of the pre-filter case 361 is formed to have a curved surface corresponding to the outer surface of the dust collection box 50. Accordingly, when the dust collection box 50 is mounted on the main body 30, the exposed front surface of the prefilter case 361 covers and supports the outer surface of the dust collection box 50. At this time, the front surface of the pre-filter case 361 may be formed to be inclined so as to be in contact with the outer surface of the dust collection box 50 according to the inclined mounting state of the dust collection box 50. Therefore, when the dust collection box 50 is mounted, the dust collection box 50 can be maintained in a stable support state by the front surface of the pre-filter case 361.

  The pre-filter case 361 has a filter hole 361 a formed at a position corresponding to the discharge port 512 of the dust collection box 50. The filter hole 361a may be formed in a size and shape corresponding to the discharge port 512. A gasket 361b is formed around the filter hole 361a so as to be in close contact with the periphery of the discharge port 512. The dust collection box 50 and the prefilter case 361 are in close contact with each other, thereby preventing air leakage.

  The pre-filter case 361 is further formed with a rocker groove 361c. The rocker groove 361 c accommodates an upper rocker 57 that is disposed so as to protrude from the outer surface of the dust collection box 50 when the dust collection box 50 is mounted on the main body 30. Accordingly, the rocker groove 361c may be formed to correspond to the protruding shape of the upper rocker 57.

  In addition, first constraining portions 361d that maintain the prefilter body 362 in a closed state may be formed on both side surfaces of the prefilter case 361. The first constraining part 361d may be formed in a recessed shape so that a second constraining part 362c described later can be accommodated, and a constraining protrusion 361e can be formed protruding from the first constraining part 361d.

  Meanwhile, a gasket 361g may be further provided around the opened rear end of the pre-filter case 361. The gasket 361g is in close contact with the front surface of the second barrier 342 so that all air passing through the prefilter assembly 36 can pass through the second barrier hole 342a without leakage.

  A first rotation coupling part 361f may be formed at the lower end of the pre-filter case 361. The first rotation coupling portion 361f connects the pre-filter case 361 and the pre-filter body 362 in a rotatable manner, and a pair can protrude from the lower end of the pre-filter case 361. The second rotation coupling portion 362e is positioned between the pair of first rotation coupling portions 361f, and the first rotation coupling portion 361f is rotatably coupled to both ends of the second rotation coupling portion 362e. obtain.

  The prefilter body 362 has a front surface opened and a rear surface formed in a grill shape. The body grille 362a is in close contact with the second barrier 342, and is extended along the body grille 362a to extend the prefilter case 361. And a body edge 362b that accommodates.

  If necessary, a gasket may be provided around the body grill 362a to allow the second barrier 342 and the pre-filter body 362 to be in an airtight state. The body grill 362a is formed in a grill shape so that air flowing in from the filter hole 361a can pass through the second barrier hole 342a after passing through the filter member 363.

  The body edge 362b is in close contact with the outer surface of the prefilter case 361, and the width of the lower end may be larger than the width of the upper end and the side surface may be inclined so that the prefilter case 361 can be joined in an inclined state. . A second restraining portion 362c seated on the first restraining portion 361d may be formed on both side surfaces of the body edge 362b.

  The second constraining part 362c may be formed to protrude forward from both sides of the body edge 362b and to be accommodated inside the first constraining part 361d. A restriction hole 362d is formed in the second restriction part 362c, and the restriction hole 362d is inserted into the restriction part 362c when the second restriction part 362c is accommodated in the second restriction part 362c. The prefilter case 361 and the prefilter body 362 can be kept closed.

  The second rotation coupling part 362e may be formed at the lower end of the body edge 362b. The second rotation coupling portion 362e is rotatably coupled to the first rotation coupling portion 361f, and the first filter coupling portion 361f and the second rotation coupling portion 362e at the lower ends of the prefilter case 361 and the prefilter body 362 are provided. It can be rotated around the axis. Accordingly, the pre-filter case 361 can be rotated and opened with the lower end of the pre-filter body 362 as a reference, and the pre-filter body 362 can be opened to replace the filter member 363.

  The filter member 363 may use various types of filters capable of collecting various kinds of fine dust, and may be formed in a shape that can be accommodated in the inner space of the pre-filter body 362.

  The pre-filter assembly 36 is mounted on the upper frame in a state in which the filter member 363 is accommodated, supports the dust collection box 50 in a state of being mounted on the upper frame 34, and the dust collection box 50 is The air that has passed through is secondarily filtered and supplied to the main motor 35.

  A pair of second sidewalls 343 may extend rearward on the rear surface of the second barrier 342. The second sidewall 343 may form a space in which the main motor 35 is disposed, and may simultaneously form a space in which the sub PCB 305 is disposed.

  Specifically, the main motor 35 is provided between the pair of second sidewalls 343, and the sub PCB 305 can be mounted on the outer surface of any one of the second sidewalls 343. That is, as shown in FIG. 7, the main motor 35 and the sub PCB 305 may be arranged in a partitioned space with respect to the second sidewall 343.

  Meanwhile, the second barrier hole 342a is formed in a region between the pair of second sidewalls 343. Therefore, all the air passing through the second barrier hole 342a can pass through the main motor 35.

  A plate hole 341 a may be formed in the cover plate 341 that forms the bottom of the upper frame 34. The plate hole 341a may be formed in a region between the pair of second sidewalls 343. Accordingly, the air that has flowed into the space in which the main motor 35 is housed from the second barrier hole 342a flows into the space in which the battery unit 38 formed in the lower frame 33 is housed from the plate hole 341a, and The battery unit 38 can be cooled.

  The main motor 35 is provided in a space formed by the upper frame 34 and is located behind the center of gravity of the main body 30 and the center of the moving wheel 60. Therefore, due to the mounting structure of the main motor 35, when no external force is provided, a load is applied so that the main body 30 rotates in a direction in which the rear end is lowered due to the weight of the main motor 35.

  The main motor 35 is disposed longer in the front-rear direction, so that the center of gravity of the main body 30 can be positioned behind the center of rotation of the moving wheel 60, and the main body 30 is rotated in the clockwise direction. A rotational moment for rotational motion can be provided.

  Meanwhile, the main motor 35 has a structure in which a fan and a motor are coupled inside a case for guiding the flow of air. As the structure of the main motor 35, various structures capable of forcing air flow can be applied.

  The main motor 35 may be fixedly mounted on the upper frame 34 by the motor support member 351. The motor support member 351 is formed of rubber or a material having elasticity, and can cancel vibrations generated when the main motor 35 is driven, thereby reducing noise.

  A motor cover 352 that covers at least a part of the main motor 35 may be further provided behind the main motor 35. A plurality of holes are formed in the motor cover 352 so that air forcedly blown by the main motor 35 can pass through. Further, a sound absorbing material is further provided between the motor cover 352 and the main motor 35, and noise generated when the main motor 35 is driven can be reduced.

  The main motor 35 is disposed so as to be biased to one side where the sub PCB 305 is provided in a space formed in the upper frame 34. That is, the main motor 35 is disposed adjacent to the second sidewall 343 to which the sub PCB 305 is mounted, of the pair of second sidewalls 343. Accordingly, a relatively wide space may be formed between the main motor 35 and the second sidewall 343 of the second sidewall 343 far from the sub PCB 305.

  At least a part of the plate hole 341a may be exposed from a region between the main motor 35 and the second sidewall 343 at a distant position. Also, the first barrier hole 331a may be formed in the same extension region as the plate hole 341a.

  Therefore, the air discharged through the main motor 35 is discharged from the motor cover 352, and one side direction of both sides is blocked by the adjacent second sidewall 343. Flow noise can be reduced by allowing the air to flow smoothly to the first barrier hole 331a by naturally flowing into the space between the second side walls 343 on the other side where the 341a is formed. .

  Meanwhile, a frame cover 36 may be provided on the upper frame 34. The frame cover 36 may be configured to shield the opened upper surface of the upper frame 34. Accordingly, when the frame cover 36 is attached, the space in which the main motor 35 is accommodated can be sealed, and the air flowing from the second barrier hole 342a by the driving of the main motor 35 35 can be completely discharged from the plate hole 341a.

  Meanwhile, the sub PCB 305 may be provided on the second sidewall 343 on one side of the pair of second sidewalls 343. The sub PCB 305 controls the driving of the sub motor 201 that can drive the agitator inside the suction device 20. The sub motor 201 may be an inexpensive and easy-to-control BLDC motor, and the sub PCB 305 may be supplied with reduced input power suitable for the sub motor 201.

  The sub PCB 305 can be mounted as necessary by separately providing the sub PCB 305 in a separate space from the main PCB 301 on the upper frame 34. That is, when the sub motor 201 is not provided to the suction device 20, the sub PCB 305 can be omitted and the main PCB 301 can be shared.

  Meanwhile, the upper portion of the cleaner body 10 may be formed by an upper deco 37. The upper deco 37 can shield the internal structure attached to the base 31 by shielding the upper portion of the base 31 that is opened. The upper deco 37 forms the appearance of a part of the upper surface of the vacuum cleaner body 10, and the remaining cleaning except for the portion shielded by the cover member 40, the moving wheel 60, and the dust collection box 50. The upper external appearance of the machine body 10 is formed.

  The upper deco 37 may be coupled to a lower deco 315, which will be described later, and may be combined with the lower deco 315 to form a part of the side appearance of the cleaner body 10.

  FIG. 9 is an exploded perspective view of the coupling structure of the cleaner body, the moving wheel, and the sensing unit viewed from one direction. FIG. 10 is an exploded perspective view of the coupling structure of the cleaner body, the moving wheel, and the sensing unit as seen from another direction. FIG. 11 is a side view showing a mounted state of the cleaner body and the wheel gear assembly. FIG. 12 is a side view of the cleaner body.

  As shown in the drawing, a pair of side portions 316 extending upward are formed on both side ends of the base 31. The side portion 316 may provide a space in which the moving wheel 60 and a wheel motor assembly 63 for driving the moving wheel 60 are mounted. A pair of the side portions 316 are provided on the left and right sides, and the structure in which the wheel motor assembly 63 and the moving wheel 60 are mounted may be the same.

  The side part 316 may be extended to a position higher than the center of the moving wheel 60 and smaller than the size of the moving wheel 60. In the center of the side part 316, a wheel boss 316a to which the moving wheel 60 can be rotatably mounted may be provided. The wheel boss 316 a may be extended from the side portion 316 toward the center of the moving wheel 60. The moving wheel 60 may be rotated by the wheel motor assembly 63 and the wheel gear 64 in a state where the moving wheel 60 is mounted on the wheel boss 316a. And the said vacuum cleaner main body 10 can also be in the state which can rotate centering on the said wheel boss | hub 316a.

  The wheel motor assembly 63 may be provided on the side of the wheel boss 316a. When the moving wheel 60 is mounted on the wheel boss 316 a, the wheel motor assembly 63 may be shielded by the moving wheel 60. That is, the wheel motor assembly 63 may be provided in a space formed by the side portion 316 and the moving wheel 60.

  The wheel motor assembly 63 includes a wheel motor 632, a wheel motor case 631, and a plurality of moving gears (not shown) that are provided inside the wheel motor case 631 and transmit power to the wheel gear 64. obtain.

  The wheel motor 632 may be a light BLDC motor that is easy to control the rotation and is light. A plurality of moving gears that connect the rotation shaft of the wheel motor 632 and the wheel gear 64 of the moving wheel 60 decelerates the rotation of the wheel motor 632 and transmits it to the moving wheel 60.

  On the other hand, the wheel motor assembly 63 may be mounted behind the rotational center of the moving wheel 60. In detail, the wheel motor case 631 may be formed with a case mounting groove 633 recessed inward. The case mounting groove 633 is recessed in a shape corresponding to the wheel boss 316a, and is formed so that at least a part of the wheel boss 316a can be accommodated. That is, in the state where the wheel motor assembly 63 is mounted, the case mounting groove 633 is mounted so as to cover the rear half of the outer surface of the wheel boss 316a, and is disposed on the rear side of the wheel boss 316a. Accordingly, the center of gravity of the cleaner body 10 may be located further rearward when the wheel motor assembly 63 is mounted on the cleaner body 10.

  The wheel motor 632 is positioned below the wheel motor case 631, and the plurality of moving gears are positioned above the wheel motor. That is, by arranging the relatively heavy wheel motor 632 below, the center of gravity of the cleaner body 10 can be positioned further downward.

  A lower deco 315 that forms the appearance of the main body exposed to the outside of the moving wheel 60 may be attached to the side portion 316. The lower deco 315 may be formed along at least a part of the periphery of the moving wheel 60 and may have a curved surface continuous with the curved surface of the moving wheel 60 to form a smooth appearance.

  A plurality of reinforcing ribs 316b extending in the vertical direction may be further formed on the inner surface of the side portion 316, that is, on the surface opposite to the surface on which the wheel boss 316a is formed. By forming the plurality of reinforcing ribs 316b, the side portion 316 is prevented from being damaged by a load applied in the lateral direction. In addition, a stable coupled state of the moving wheel 60 can be maintained.

  Meanwhile, a sensing unit 306 may be further provided on one side of the inner surface of the side unit 316. The sensing unit 306 senses the movement state or state of the cleaner body 10 and controls the driving of the moving wheel 60. The sensing unit 306 is for sensing the movement of the cleaner body 10 and may include a normally used gyro sensor or acceleration sensor. Of course, as the sensing unit 306, various sensors or devices capable of sensing the movement of the main body 10 may be used in addition to the gyro sensor and the acceleration sensor.

  The sensing unit 306 may be mounted on an upper portion of the inner surface of the side unit 316. The sensing unit 306 may include a sensing PCB 306a on which a gyro sensor is mounted, and a sensing unit fixing member 306b to which the sensing PCB 360a is fixed and attached to the side part 316. A pair of fixing hooks 306 c are provided on the sensing unit fixing member 306 b and can be inserted and fixed to the sensing unit fixing port 316 c formed in the side unit 316.

  Meanwhile, the sensing PCB 360a may be configured to control driving of the wheel motor 632 provided on both sides. That is, the configuration for controlling the gyro sensor and the wheel motor 632 may be configured by one PCB.

  As described above, the sensing unit 306 is fixedly mounted on the side unit 316, and the mounting position of the sensing unit 306 is on one side away from the rotation center of the moving wheel 60 serving as the rotation axis of the cleaner body 10. can do. Therefore, the rotation angle, that is, the inclination of the cleaner body 10 can be effectively sensed when the cleaner body 10 is running or stopped.

  When the cleaner body 10 is stopped, the center of gravity is located rearward with respect to the center of the moving wheel 60. Accordingly, the cleaner body 10 maintains a state in which it tries to rotate clockwise with respect to the center of the moving wheel 60. And the said vacuum cleaner main body 10 maintains the state supported by the rear wheel unit 70 which touches the ground. Therefore, the bottom surface of the cleaner body 10, particularly the front half 312 can maintain a predetermined angle.

  In this state, the sensing unit 306 determines that the cleaner body 10 is not running but is in a stopped state from the gradient of the cleaner body 10, that is, the angle of the front half 312.

  Specifically, the wheel motor assembly 63, the battery unit 38, and the main motor 35 may be disposed behind the center of the moving wheel 60. Therefore, the center of gravity G of the cleaner body 10 is located behind the center of rotation C of the moving wheel 60, and the cleaner body 10 naturally rotates clockwise with respect to the center of rotation of the moving wheel 60. It will be in a state to try.

  The rear half of the cleaner body 10 can be supported by the rear wheel unit 70 attached to the rear half 313 of the base 31. Therefore, the cleaner body 10 does not rotate in the clockwise direction excessively, and the set angle α can be stably maintained.

  In particular, due to the characteristics of the vacuum cleaner 1, garbage accumulates in the dust collection box 50 after use. In consideration of such points, the center of gravity of the vacuum cleaner body 10 is always located in the second half, and the rear wheel By being supported by the unit 70, the cleaner body 10 can maintain a constant gradient with respect to the ground when the cleaner body 10 is stopped, regardless of the amount of dust.

  In this state, when the sensing unit 306 senses the angle of the front half 312 and confirms that the set angle α is maintained, the set posture is maintained when the cleaner body 10 is stopped. Judge that you are doing. Therefore, the main PCB 301 does not operate the wheel motor assembly 63 but keeps it in a stopped state.

  On the other hand, when the user takes the handle 23 and moves it forward to use the cleaner 1, the cleaner body 10 is inclined due to the position of the handle 23. That is, the cleaner body 10 rotates counterclockwise so that the front half 312 moves further downward.

  At this time, the sensing unit 306 senses a change in the angle of the front half 312 and determines that the movement of the cleaner 1 has started due to the change in the angle. Therefore, the main PCB 301 can determine that the cleaner body 10 moves and can drive the wheel motor assembly 63 to rotate the moving wheel 60.

  When the movement of the cleaner body 10 is stopped, the cleaner body 10 is rotated to the initial state by the center of gravity, and the sensing unit 306 is configured such that the angle of the front half 312 is the angle α set at the time of stop. Make sure they match. Therefore, the main PCB 301 can determine that the movement of the cleaner body 10 has been completed, and can stop the wheel motor assembly 63.

  On the other hand, as shown in FIG. 10, the bottom surface of the cleaner body 10, that is, the central portion 311, the front half portion 312 and the rear half portion 313 of the base 31 may have a predetermined angle. The angle between the central portion 311 and the front half 312 and the rear half 313 can be set variously. Below, the angle of the said base 31 in the state which the said vacuum cleaner main body 10 stopped without moving will be demonstrated.

  For example, the front half 312 may be formed to be inclined at an angle of 27 ° with respect to the ground. By tilting the front half 312 at an angle of 27 °, it is possible to prevent the front half 312 from hitting the ground as much as possible even when the suction hose 24 is pulled and the cleaner body 10 rotates. Of course, the front half 312 may hit the ground by a sudden operation, but at that time, the movement of the cleaner main body 10 can be made smooth by rolling of the front wheel 312a. Further, the front half 312 can easily get over a carpet or a sill while the cleaner body 10 is running due to the inclination.

  The central portion 311 may be formed to be inclined at an angle of 7 ° with respect to the ground in a state where the cleaner body 10 is stopped. When the moving wheel 60 is rotated by the driving of the wheel motor 632 and the cleaner body 10 travels, the cleaner body 10 rotates counterclockwise by an angle of about 7 °, and thus the cleaner When the main body 10 is running, the central portion 311 can be kept horizontal with the ground, and the bottom of the vacuum cleaner can be prevented from being caught by foreign objects in the room.

  The second half 313 may be formed to be inclined at an angle of 10 ° with respect to the ground with the cleaner body 10 stopped. Therefore, the vacuum cleaner body 10 is rotated clockwise by the center of gravity of the vacuum cleaner body 10 that is eccentric rearward in a state where the vacuum cleaner body 10 is stopped, so that the vacuum cleaner body 10 is seated on the ground.

  That is, when the vacuum cleaner body 10 is stopped, the latter half 313 is already lowered by the center of gravity, and the rear wheel unit 70 stably supports the rear wheel unit 70 regardless of the amount of dust stored in the dust collection box 50. Can keep.

  Further, when the vacuum cleaner body 10 rotates by pulling the suction hose 24 by the inclined rear half part 313, the rotation of the vacuum cleaner body 10 is prevented from colliding with the ground and the latter half part 313. can do.

  On the other hand, the moving wheel 60 is rotatably attached to a wheel boss 316a of the side portion 316, and is connected to a wheel frame 61 to which the wheel gear 64 is attached, and an outer surface of the wheel frame 61, and the moving wheel 60 is connected. The wheel deco 62 that forms the external appearance can be included.

  The wheel frame 61 forms a substantial skeleton of the moving wheel 60 and rolls in contact with the ground. A plurality of radial ribs 611 for reinforcing the strength are provided on the entire inner surface and outer surface. Can be. A wheel gear mounting portion 612 to which the wheel gear 64 is fixed is formed at the center of the wheel frame 61. The wheel gear 64 may be rotatably mounted on the wheel boss 316 a while being fixed to the wheel frame 61.

  On the other hand, a wheel opening 621 is formed at the center of the wheel deco 62, and a coupling member for coupling the wheel gear 64 and the wheel frame 61 can be tightened through the wheel opening 621. A wheel cap 623 is attached to the wheel opening 621 so that the wheel opening 621 can be shielded.

On the other hand, referring to FIG. 11, the cleaner body 10 is moved forward by a vertical extension line L _V extending perpendicularly to the ground (or the cleaning surface) with respect to the rotation center C of the moving wheel 60. Divided backwards.

Then, the cleaner main body 10, the ground reference between the main motor 35 and the battery unit 38 (or the cleaning surface) be divided into an upper and a lower by a horizontal extension line L _H to be extended horizontally and it can.

The vacuum cleaner body 10 may be divided into four regions, that is, four quadrants, by the vertical extension line L _V and the horizontal extension line L _H. The following description of the main structure of the cleaner main body 10 relative to the vertical extension line L _V and the horizontal extended line L _H.

The main motor 35, the first quadrant of the cleaner main body 10, i.e., may be located above the rear and a horizontal extension line L _H of the vertical extension line L _V. Then, the battery unit 38, the fourth quadrant of the cleaner main body 10, i.e., may be located below the rear and a horizontal extension line L _H of the vertical extension line L _V. The holes of the point where the connector 401 or the suction hose 24 is connected, the second quadrant of the cleaner main body 10, i.e., positioned above the front and the horizontal extended line L _H of the vertical extension line L _V obtain. At least part of the bottom surface of the dust collecting box 50, the third quadrant of the cleaner main body 10, i.e., may be located beneath the front and the horizontal extended line L _H of the vertical extension line L _V.

Such overall center of gravity G of the cleaner body 10 by an arrangement may be located at the rear on the vertical extension line L _V. At this time, the center of gravity G, the horizontal extended line L may be located either above or below the _H, but the rear end or rear wheel of the cleaner body 10 in a state where the travel of the cleaning device 1 is stopped It must be located at a point where the unit 70 can rotate to touch the ground.

  Further, the center of gravity G of the vacuum cleaner main body 10 is in a state where traveling of the vacuum cleaner 1 is stopped regardless of the amount of dust collected inside the dust collection box 50 by use of the vacuum cleaner 1. The rear end or rear wheel unit 70 may be arranged so as to be in contact with the ground.

Further, the wheel motor assemblies 63 be located rearwardly of the vertical extension line L _V, a rear disposition of the center of gravity G can be more easily.

  FIG. 13 is a bottom view of the cleaner body. FIG. 14 is an exploded perspective view showing the coupling structure of the rear wheel unit according to the embodiment of the present invention. FIG. 15 is a cross-sectional view showing an operating state of the rear wheel unit.

  As illustrated, the base 31 may be provided with a rear wheel unit 70. At the rear end of the central portion 311 of the base 31, a base recessed portion 311b recessed inward is formed. A wheel mounting portion 311c for mounting the rear wheel unit 70 is formed at the front ends of both side surfaces of the base depressed portion 311b.

  The rear wheel unit 70 is in contact with the ground in a state where the cleaner body 10 does not move so that the cleaner body 10 maintains the set posture. And, the rear wheel unit 70 provides elasticity for reverse rotation of the cleaner body 10 at the same time as contacting the ground in a state where the cleaner body 10 rotates so that the front half 312 is lifted, The cleaner body 10 can be prevented from excessively rotating or falling.

  The rear wheel unit 70 may include a wheel supporter 71 and a rear wheel 72. The wheel supporter 71 allows the rear wheel 72 to be rotatably mounted, and can contact the lower surface of the base 31 to provide predetermined elasticity.

  Specifically, the wheel supporter 71 is connected between a leg 73 provided as a pair on both right and left sides, a front end of the leg 73, and a wheel housing portion 74 to which the rear wheel 72 is mounted, and the leg 73. And an elastic part 75 that provides elasticity in contact with the base 31.

  The legs 73 are for mounting the wheel supporter 71 and may be provided on both sides separated from each other. A leg protrusion 731 protruding outward may be formed at the upper end of the leg 73. The leg protrusion 731 may be inserted inside the wheel mounting portion 311c, and the wheel supporter 71 may be rotatably mounted around the leg protrusion 731.

  The wheel accommodating portion 74 is provided at a front end of the pair of legs 73 and is configured to connect between the pair of legs 73. The wheel accommodating portion 74 is formed in a shape opened downward, and provides a space in which the rear wheel 72 can be accommodated. A shaft mounting portion 741 may be further formed at both ends of the wheel housing portion 74 so that the rotating shaft 721 of the rear wheel 72 is rotatably connected. Accordingly, the rear wheel 72 can rotate while being accommodated inside the wheel accommodating portion 74.

  The elastic part 75 is provided between the legs 73 and may extend from the front half part of the leg 73 toward the rear half part. The elastic part 75 may be extended so as to have a predetermined curvature such that the extended end part faces the base 31. The elastic part 75 is formed in a plate shape and can be extended so as to be elastically deformed when contacting the base 31.

  The elastic part 75 may be in contact with the base 31 at the extended end with the vacuum cleaner 1 stopped. At this time, the rear wheel 72 may be in contact with the ground. Therefore, the cleaner body 10 is supported by the pair of moving wheels 60 and the rear wheel 72 behind the moving wheels 60, and can maintain a stable state.

  When the cleaner body 10 is moved and rotated about the moving wheel 60, the elastic portion 75 is elastically deformed, and the cleaner body 10 is excessively rotated or overturned. Can be prevented. And if the external force which stops the said vacuum cleaner 1 after moving and rotates the said vacuum cleaner 1 is removed, the said vacuum cleaner main body 10 will reset to the original position with the restoring force of the said elastic part 75. FIG.

  Meanwhile, a terminal mounting portion 311a is formed on one side of the base 31 corresponding to the power supply terminal 307 so as to be exposed from below where the power supply terminal 307 is mounted. The terminal mounting part 311a may be formed such that a lower surface is opened, and the power supply terminal 307 may be provided therein. The terminal mounting portion 311a is provided at a position adjacent to the moving wheel 60 on one side. Therefore, the power supply terminal 307, the charging device, and the power supply terminal 307 are seated and fixed on the charging device. Can be aligned.

  FIG. 16 is a rear view of the cleaner body with the rear cover opened. FIG. 17 is an exploded perspective view showing a combined structure of the battery and the filter according to the embodiment of the present invention.

  As illustrated, a rear cover 314 may be provided on the rear surface of the cleaner body 10. The rear cover 314 can be rotatably mounted on the base 31 and can be configured to open and close the rear opening 317 formed by the base 31 and the upper deco 37 by rotation.

  A rear cover restraining portion 314 a that is selectively fixed to the rear end of the upper deco 37 may be formed at the upper end of the rear cover 314. Therefore, the opening and closing of the rear cover 314 can be operated by operating the rear cover restraining portion 314a.

  A cover rotating shaft 314b is formed to protrude from both sides of the lower end of the rear cover 314. The cover rotation shaft 314b is coupled to the base 31 so that the rear cover 314 can rotate about the cover rotation shaft 314b to open and close the rear opening 317 when the rear cover 314 is opened and closed.

  On the other hand, a space where the filter unit 39 and the battery unit 38 are provided may be formed in the rear half of the cleaner body 10, that is, in the rear from the center of the moving wheel 60. A space in which the filter unit 39 and the battery unit 38 are accommodated can be defined by the lower frame 33. The lower frame 33 includes a first barrier 331 and a first sidewall 332, and a space in which the filter unit 39 and the battery unit 38 are provided can be formed by coupling the base 31 and the upper frame 34.

  The filter unit 39 may include a filter case 391 that forms an outer shape, and a filter member 392 provided inside the filter case 391. The filter member 392 is for filtering ultra-fine dust (defined as dust and particles of particles smaller than fine dust) in the air that has passed through the dust collection box 50 and the main motor 35. A HEPA filter can be used. Of course, various filters capable of filtering ultra fine dust may be used as the filter member 392 as necessary.

  The filter case 391 may be disposed at an upper portion of the space and may be configured to contact the bottom surface of the upper frame 34 in a mounted state. Accordingly, all the air flowing into the space from the plate hole 341a of the upper frame 34 is purified while passing through the filter unit 39, and can be discharged outside after the battery unit 38 is cooled.

  A part of the air flowing into the space through the plate hole 341a can move forward through the first barrier hole 331a of the first barrier 331. In this process, the noise filter 302 and the The main PCB 301 can be cooled.

  A filter handle 393 is formed at the rear end of the filter case 391. When the rear cover 314 is opened, the filter handle 393 is exposed, and the user pulls the filter handle 393 and pulls it to separate the filter unit 39 from the space. can do.

  Filter grooves 394 may be formed on both side surfaces of the filter case 391. The filter groove 394 extends in the length direction from the rear end of the filter case 391 and can be inserted into a filter guide 333 formed in the second sidewall 343.

  That is, when the filter case 391 is mounted in the space, the filter groove 394 is inserted between the filter guides 333 formed on both side surfaces. Accordingly, the filter case 391 can be completely inserted into the space along the filter guide 333 and maintained in contact with the bottom surface of the upper frame 34 in such a state.

  The battery unit 38 can supply power necessary for driving the vacuum cleaner 1 in general. The battery unit 38 may be a secondary battery that can be charged and discharged. Of course, a power cord (not shown) for supplying commercial power may be connected to the battery unit 38 separately.

  On the other hand, although not shown, in the case of a model in which the battery unit 38 is not provided, a cord reel (not shown) around which an electric wire for supplying power is wound is arranged instead of the battery unit 38. Could be. The center of gravity can be moved backward by the cord reel.

  The battery unit 38 may be composed of a battery case 381 and a secondary battery housed in the battery case 381. The secondary battery 383 may be arranged in an aligned state in the battery case 381.

  The battery case 381 may be formed to have a size that can be accommodated in the space, and a battery grill 381a may be formed at positions corresponding to the upper and lower surfaces and the rear cover 314. Therefore, the air that has passed through the filter unit 39 and has flowed into the space can cool the secondary battery 383 while passing through the battery grill 381a and the inside of the battery case 381.

  A battery handle 382 that can be gripped by a user when the battery unit 38 is inserted and pulled out from the space may be formed on the rear surface of the battery case 381. A battery groove 384 may be formed on both side surfaces of the battery case 381. The battery groove 384 may be depressed on both side surfaces of the battery case 381 and extend rearward from the front end.

  The battery groove 384 is inserted with a battery guide 334 formed under the first sidewall 332. When the battery unit 38 is mounted, the battery guide 334 is inserted along the battery groove 384, The battery unit 38 can be accurately mounted.

  Meanwhile, the battery guide 334 on both sides of the first sidewall 332 may be provided with a battery restraint 335 and a battery restraint member 336, respectively. The battery restraining part 335 and the battery restraining member 336 maintain the battery unit 38 in a state of being mounted inside the space, and are located at opposite positions on the both side surfaces of the battery case 381. It can be restrained and restrained by the battery restraining groove 385 formed.

  In detail, the battery restraining part 335 has a first elastic part 335a formed by cutting a part of the first sidewall 332, and a first restraining protrusion 335b is formed at an end of the first elastic part 335a. Can be done. Accordingly, the first elastic part 335a is elastically deformed in the process of inserting the battery unit 38, and when the battery unit 38 is completely inserted, the first restricting protrusion 335b is locked in the battery restricting groove 385. It is restrained and one side of the battery unit 38 can be restrained.

  Meanwhile, the battery restraining member 336 is fixedly attached to the first sidewall 332 facing the battery restraining portion 335. A side hole 334 a formed in a shape corresponding to the battery restraining member 336 is opened in the first sidewall 332 to which the battery restraining member 336 is attached. In the side hole 334a, a restraining member fixing portion 334b that can be press-fitted and fixed around the battery restraining member 336 can be formed. Therefore, the battery restraining member 336 can be fixedly attached by press-fitting, and a hook is formed at the end of the restraining member fixing portion 334b, so that the battery restraining member 336 can be maintained in a fixed state. .

  The battery restraining member 336 may be formed of a different material than the battery restraining portion 335. For example, the battery restraint 335 may be formed integrally with the lower frame 33 and may be injection-molded with an ABS material. The battery restraining member 336 may be injection-molded with a POM material. The battery restraining member 336 and the battery restraining portion 335 are formed of different materials and are configured separately, so that the restraint portion is prevented from being damaged when the battery unit 38 is mounted, and more effectively coupled. To do.

  The battery restraining member 336 may include a restraining member edge 336a formed in a square shape corresponding to the side hole 334a. The restraining member edge 336a may be formed around the battery restraining portion 335 by the side hole 334a. Maintain the fixed mounting state. The battery restraining member 336 may include a second elastic part 336b and the second restraining protrusion 336c.

  The second elastic part 336b and the second restricting protrusion 336c may be formed in a shape corresponding to the first elastic part 335a and the first restricting protrusion 335b. That is, the second elastic part 336b may be formed by cutting the inside of the battery restraining member 336 and extending to a predetermined length to have elasticity. A second restraining protrusion 336c may be formed at the end of the extended second elastic part 336b.

  Accordingly, the second elastic part 336b is elastically deformed in the process of inserting the battery unit 38, and when the battery unit 38 is completely inserted, the second restricting protrusion 336c is locked in the battery restricting groove 385. The battery unit 38 can be restrained by being restrained.

  Meanwhile, a battery terminal 331b connected to the battery unit 38 in a state where the battery unit 38 is completely inserted may be provided at a lower end of the first barrier 331. The battery terminal 331b may be configured to protrude in the insertion direction of the battery unit 38 and to be coupled to the front surface of the battery unit 38. The battery terminal 331b is electrically connected to the battery unit 38 and can supply power for driving the internal configuration of the cleaner 1.

  A holder 371 may be provided above the rear opening 317 shielded by the rear cover 314. The holder 371 is configured so that the extension tube 22 can be fixedly mounted when the vacuum cleaner 1 is not in use, and can be stored. The inner portion of the opening 371 from the upper side to the lower side becomes narrower. Can be formed.

  The holder 371 may be formed separately from the upper deco 37 and inserted into the upper deco 37. The extension tube holder 371 is further fixed to the main body 30 by a holder fixing member 371b, and prevents breakage when an impact and a load are generated due to the attachment of the extension tube 22. The holder 371 may be formed of a metal material. The holder 371 may be formed by die casting and have higher strength.

  FIG. 18 is a cross-sectional view of the cleaner body in a state before the battery is mounted. FIG. 19 is a cross-sectional view of the cleaner body with the battery mounted.

  As shown in FIG. 18, before the battery unit 38 is mounted, the battery restraining portion 335 and the battery restraining member 336 are disposed at positions facing each other. The first elastic part 335a and the second elastic part 336b are in a state where no external force is applied, and the first restricting protrusion 335b and the second restricting protrusion 336c protrude into the inner space of the lower frame 33; Become.

  In this state, the user can open the rear cover 314 to expose the space and attach the battery unit 38. After the rear cover 314 is opened, the battery unit 38 is inserted inside the space. At this time, the battery unit 38 can be slidingly inserted with the battery guide 334 and the battery groove 384 aligned, and when the battery unit 38 is completely inserted, the front surface of the battery unit 38 is In combination with the battery terminal 331b, power can be supplied to the internal structure of the cleaner body 10.

  When the battery unit 38 is completely inserted and mounted, the front surface of the battery unit 38 is in contact with the first barrier 331 as shown in FIG. In the process of inserting the battery unit 38, the first elastic part 335a and the second elastic part 336b are elastically deformed outward. In the state where the battery unit 38 is inserted, the first restraining protrusion 335b and the second restraining protrusion 336c are inserted into the battery restraining grooves 385 formed on both side surfaces of the battery case 381, and maintained in a fixed state. Let

  FIG. 20 is a perspective view of the cover member. FIG. 21 is an exploded perspective view of the cover member. FIG. 22 is a partial cross-sectional view showing a coupling structure of the cover member and the obstacle sensing member.

  As shown in the drawing, the cover member 40 may be formed to have a structure that forms the upper part of the cleaner body 10 and shields the upper end of the upper deco 37 and the upper end of the dust collection box 50.

  The cover member 40 may be generally composed of a cover base 42 and an out cover 43. The cover base 42 forms a lower surface of the out cover 43 and substantially shields the upper surfaces of the dust collection box 50 and the main body 30 that are opened.

  A cover member coupling portion 421 is formed at the rear end of the cover base 42, and the cover member coupling portion 421 may be axially coupled to the upper end of the main body portion 30, more specifically, the rear end of the upper deco 37. A connecting hole 422 connected to the connector 401 may be formed at the front end of the cover base 42.

  The cover base 42 may be provided with an obstacle sensing member 44. The obstacle sensing member 44 can confirm an obstacle while the cleaner body 10 is running, and can be disposed along the front surface of the cover base 42.

  A plurality of the obstacle sensing members 44 may be provided, and a plurality of the obstacle sensing members 44 may be provided on the center of the front surface of the cover base 42, i. That is, two obstacle detection members 44 are provided on both the left and right sides with respect to the center of the cover base 42, and each of the obstacle detection members 44 has a detection range of approximately 25 ° by the laser sensor 441. Can be configured. The plurality of obstacle sensing members 44 may be arranged so as to see different directions from the adjacent obstacle sensing members 44.

  The obstacle sensing member 44 may include front sensors 44b and 44c and side sensors 44a and 44d. The front sensors 44b and 44c are for detecting an obstacle located in front of the cleaner body 10, and when an obstacle appears in front of the cleaner body 10 when it is running, Sense. The side sensors 44a and 44d are for detecting an obstacle located on the side of the cleaner body 10, and are attached to the cleaner body 10 while the cleaner body 10 is running. If an obstacle appears on the side that is in close proximity, it can be detected. In particular, the side sensors 44a and 44d, in combination with the front sensors 44b and 44c, allow the cleaner body 10 to travel without being caught at the corners of the wall surface.

  Furthermore, the front sensors 44b and 44c are located on both the left and right sides with the connector 401 as the center, but may be arranged to irradiate light in a diagonal direction between the front and the side. That is, as shown in FIG. 22, the centers of the front sensors 44b and 44c on both sides are arranged at positions rotated by 45 ° in the clockwise and counterclockwise directions with respect to the center of the connector 401, respectively. obtain. Accordingly, the centers of the front sensors 44b and 44c on both sides can make an angle of 90 ° with each other.

  Since the sensing range of the obstacle sensing member 44 is an angle of approximately 25 °, a non-sensing area S is generated between the front sensors 44b and 44c. The non-sensing area S may have an angle of 65 °. The non-sensing area S is an area where the suction hose 24 can be positioned during the travel of the cleaner body 10, and prevents the front sensors 44 b and 44 c from recognizing the suction hose 24 as an obstacle. belongs to. That is, even if the user moves and moves the suction hose 24 during the cleaning operation, the front sensors 44b and 44c erroneously recognize the suction hose 24 as an obstacle and the cleaner body 10 travels abnormally. Can be prevented.

  The side sensors 44a and 44d are positioned rearward of the front sensors 44b and 44c, and are disposed so as to emit light toward the side of the cleaner body 10. That is, the side sensors 44a and 44d may be disposed on both sides so as to form an angle of about 90 ° with respect to the center of the connector 401. Accordingly, the side sensors 44a and 44d can detect an obstacle appearing on the side of the cleaner body 10.

  Meanwhile, the side sensors 44a and 44d may be configured to have a sensing distance shorter than the sensing distance of the front sensors 44b and 44c. For example, the front sensors 44b and 44c are configured to have a sensing distance L1 of approximately 600 mm forward, while the side sensors 44a and 44d have a sensing distance L2 of approximately 350 mm laterally. Can be configured.

  Obstacles located in front of the vacuum cleaner main body 10 are likely to cause interference during the traveling process of the vacuum cleaner main body 10. In the case of an obstacle that is positioned, the possibility of interference during the traveling process of the cleaner body 10 is not high. Therefore, if the obstacle is recognized as an obstacle up to a side obstacle at a long distance, the cleaner body 10 normally travels. May become impossible.

  In particular, when the sensing distance L2 of the side sensors 44a and 44d is set to be shorter than the sensing distance L1 of the front sensor, it is possible to smoothly escape when the cleaner body 10 comes out of the wall surface or corner.

  Meanwhile, the obstacle sensing member 44 may include a laser sensor 441 and a sensor substrate 442 to which the laser sensor 441 is attached. The sensor substrate 442 may be used for driving and controlling the laser sensor 441. These elements can be further mounted. Of course, as the obstacle sensing member 44, various means such as an ultrasonic sensor, a proximity sensor, and a vision camera that can sense a front obstacle may be used instead of the laser sensor 441.

  Further, a locking assembly 80 that allows the cover member 40 to be selectively restrained may be further provided between the cover base 42 and the out cover 43. The locking assembly 80 may include a pressing member 81 and a main link 83 and a sub link 84 that operate in conjunction with the pressing member 81.

  The outer cover 43 forms the outer shape of the cover member 40 and forms the upper appearance of the cleaner body 10 with the cover member 40 closed. A connector 401 connected to the fitting portion 241 of the suction hose 24 is formed at the front end of the out cover 43. The connector 401 is connected to the connecting hole 422 and allows dust and air sucked from the suction device 20 to flow toward the dust collection box 50.

  A sensing hole 431 may be formed on the front surface of the out cover 43 with respect to the connector 401. The sensing hole 431 may be configured to open at a position corresponding to the laser sensor 441 and to emit and receive a light beam for sensing an obstacle.

  Meanwhile, the sensing hole 431 may be opened at a position corresponding to the front sensors 44b and 44c and the side sensors 44a and 44d, and the inner side surfaces may be inclined. This makes it possible to irradiate the irradiated light beam within a set angle range.

  If necessary, the sensing hole 431 may be further provided with a hole cover 432 that is formed of a material capable of transmitting the light beam of the laser sensor 441 and shields the sensing hole 431. The plurality of sensing holes 431 are all formed at the same height, and can be positioned symmetrically with respect to the connector 401. As described above, the detection hole 431 and the obstacle detection member 44 are exposed to the front without being shielded by the main body 30 so as to detect an obstacle while the cleaner body 10 is running. It may be disposed on the front surface of the member 40.

  The grip portion 41 may be formed on the upper surface of the out cover 43. The grip part 41 may be extended from one side of the connector 401 to the rear end of the out cover 43. The grip portion 41 may be provided with a pressing member 81 that is operated by a user to perform selective restraint of the cover member 40. By operating the push-down member 81, cover restraining protrusions 843 selectively protrude on both sides of the cover member 40, and the cover member 40 can be selectively restrained by the main body 30.

  FIG. 23 is an exploded perspective view showing a coupling structure of the locking assembly according to the embodiment of the present invention.

  As illustrated, the locking assembly 80 includes a pressing member 81 that is pressed by a user, a transmission member 82 that transmits the operation of the pressing member 81, a main link 83 that is rotated by the transmission member 82, and the main link 83. It is possible to include a sub-link 84 that moves horizontally by rotation of.

  The pressing member 81 is accommodated inside the grip portion 41 and may be arranged to be movable up and down. The grip portion 41 is formed by coupling a grip portion cover 411 and a grip portion body 412, and the pressing member 81 can be attached to the grip portion body 412. A cover opening 411a is formed in the grip part cover 411, and the pressing member 81 can be exposed from the cover opening 411a.

  A transmission member mounting portion 811 extending downward is formed on the lower surface of the pressing member 81. The transmission member 82 is mounted on the transmission member mounting portion 811. The transmission member 82 and the pressing member 81 are axially coupled, and when the pressing member 81 moves up and down, the transmission member 82 can move up and down while rotating at a predetermined angle.

  A transmission member inclined portion 821 may be formed on the lower surface of the transmission member 82. The transmission member inclined portion 821 is for moving the main link 83 in contact with the main link 83, which will be described later, and is configured so that an inclined surface can be formed by increasing the width upward from the lower end. Is done.

  The main link 83 and the sub link 84 can be coupled and interlocked with each other, and a pair can be provided on both the left and right sides with respect to the center of the cover base 42. That is, the main link 83 and the sub link 84 are a first main link 83a and a first sub link 84a provided on the left side with reference to FIG. 23, and a second main link 83b and a second sub link 84b provided on the right side. Can be configured.

  The main link 83 may be rotatably coupled to the cover base 42 by the fastening boss 85. The main link 83 includes a through portion 831 through which the tightening boss 85 passes, a first extension portion 832 extending from the through portion 831 toward the center where the transmission member 82 is located, and the through portion 831. The first extension 832 and the second extension 833 extending in a direction perpendicular to the first extension 832 may be included.

  Meanwhile, connection portions 834 formed on the first extension portions 832 of the first main link 83a and the second main link 83b are configured to overlap each other, and are coupled to the first extension portions 832 so as to be rotatable. The extension hole 834b and the extension protrusion 834a are formed, and the first main link 83a and the second main link 83b can be interlocked with each other.

  In addition, an extended portion inclined surface 834c corresponding to the transmission member inclined portion 821 is formed at one end of the first extension portion 832, that is, one side end in contact with the transmission member 82. The extension portion inclined surface 834c maintains contact with the transmission member inclined portion 821, and the transmission member inclined portion 821 moves up and down along the extension portion inclined surface 834c as the transmission member 82 moves up and down. Thereby, the first extension portion 832 can move in the front-rear direction. The first main link 83a and the second main link 83b can be rotated by moving the first extension portion 832 in the front-rear direction.

  The sub link 84 may be rotatably coupled to the end of the second extension 833. That is, the first sublink 84a and the second sublink 84b are coupled to the ends of the pair of second extensions 833, respectively. A link hole 833a is formed at each end of the second extension 833, and a link protrusion 841a is formed on the first sub-link 84a and the second sub-link 84b to connect to the link hole 833a. obtain. Therefore, the sub link 84 can be interlocked with the main link 83 when it rotates.

  A link guide 423 may be formed on the cover base 42. The link guide 423 is formed at a position corresponding to the positions of the first sublink 84a and the second sublink 84b, and forms a space in which the first sublink 84a and the second sublink 84b can be accommodated. . The link guide 423 is formed in a pair of ribs, and can be guided so as to move in a state where the sub link 84 is located between them.

  Each of the first sub-link 84a and the second sub-link 84b includes a third extension 841 accommodated in the link guide 423 and a fourth extension 842 that is bent perpendicularly from the third extension 841. Can do. The third extension 841 may be formed with a cover restraining protrusion 843 that protrudes laterally.

  An inclined surface 843a is formed on a side surface of the cover restraining protrusion 843, and the inclined surface 843a may be formed to have an inclination that increases in width from the lower end toward the upper end. Therefore, in the process of closing the cover member 40, the inclined surface 843a of the cover restraint protrusion 843 is retracted inward while contacting the side wall of the upper deco 37 and reaches the protrusion restraint port (376 in FIG. 30) of the upper deco 37. Then, it can be restrained by protruding outward. Therefore, the upper end of the cover restraining protrusion 843 may be formed in a planar shape.

  A protrusion inlet / outlet 424 through which the cover restraining protrusion 843 can enter / exit can be formed on the side surface of the cover base 42 corresponding to the position of the link guide 423. When the second sub-link 84b is moved in the horizontal direction, the cover restraining projection 843 can enter and exit from the projection entrance / exit 424, and the cover restraining projection 843 projects from the projection entrance / exit 424 (FIG. 30). 376), the cover member 40 can be kept closed.

  On the other hand, although not shown, at least one of the pressing member 81, the main link 83, or the sub link 84 may be provided with an elastic member such as a spring, and the cover restraining protrusion is formed by the elastic member. 843 can be maintained in a protruding state in a state where no external force is provided by the user's operation.

  FIG. 24 is a perspective view showing a state before operation of the locking assembly. And FIG. 25 is sectional drawing which shows the state before operation of the said locking assembly.

  As shown in the figure, when the user is not operating the pressing member 81, the transmission member 82 is kept in contact with the main link 83. At this time, the transmission member 82 is positioned at the uppermost position, and the transmission member inclined portion 821 is in contact with the extended portion inclined surface 834c.

  In addition, a guide inclined surface 822 may be further formed at the lower end of the transmission member 82, and the guide inclined surface 822 may be in contact with the transmission member guide 412 a formed on the cover base 42. That is, when the transmission member 82 is moved downward, the guide inclined surface 822 of the transmission member 82 moves along the transmission member guide 412a. At this time, the transmission member guide 412a is extended so as to intersect the main link 83 perpendicularly, so that the transmission member 82 moves in a direction intersecting the main link 83 when moving downward to move the main link 83. 83 can be operated.

  At this time, the first main link 83a and the second main link 83b are maintained on the same extension line, and an external force is not applied to the main link 83. Accordingly, the sub-link 84 also maintains a state where no external force is applied, and the cover restraining projection 843 is engaged with the projection restraining port (376 in FIG. 30) of the main body 30 while projecting from the projection entrance / exit 424. The constrained state can be maintained, and the cover member 40 can be maintained in a closed state.

  In order to open the cover member 40 in such a state, the user operates by pressing the pressing member 81. The main link 83 and the sub link 84 operate in conjunction with the operation of the pressing member 81, and the cover member 40 can be opened.

  FIG. 26 is a perspective view showing an operating state of the locking assembly. FIG. 27 is a sectional view showing an operating state of the locking assembly.

  As shown in the figure, when the user presses the pressing member 81, the transmission member 82 moves downward. At this time, the transmission member 82 can be rotated by the rotating shaft 811a on the transmission member mounting portion 811 to push the main link 83 in a vertical direction. At this time, in order to prevent excessive rotation and separation of the transmission member 82, a pair of separation prevention protrusions 824 are formed at the upper end of the transmission member 82 at a predetermined distance. A separation preventing rib 812 for the pressing member 81 may be disposed therebetween.

  When the transmission member 82 moves downward in a state in which the transmission member inclined portion 821 is in contact with the extension portion inclined surface 834c, the extension portion inclined surface 834c relatively moves along the transmission member inclined portion 821. That is, the first extension portion 832 is pushed upward. At this time, since the first main link 83a and the second main link 83b are connected to each other, both the first extension portions 832 move forward.

  When the first extension portion 832 moves forward, the main link 83 rotates around the penetrating portion 831 and the second extension portion 833 moves in a direction approaching each other. Accordingly, the first sublink 84a and the second sublink 84b connected to the second extension portion 833 move horizontally toward each other inward. Due to the horizontal movement of the sub-link 84, the cover restraining protrusion 843 formed on the sub-link 84 also moves horizontally and moves to the inside of the protrusion inlet / outlet 424.

  In such a state, since the cover restraint protrusion 843 is located inside the cover member 40, the restraint with the protrusion restraint port (376 in FIG. 30) of the main body 30 can be released. Accordingly, the user can take the grip portion 41 of the cover member 40 and turn the cover member 40 to open the inside of the main body 30 or to separate the dust collection box 50 from the main body 30. .

  On the other hand, as shown in FIG. 26, the cover member 40 may be provided with a display 45 for displaying the operation state of the cleaner 1. The display 45 is configured to display information on the upper surface of the cover member 40 and is disposed on the side of the grip portion 41 so that the user can easily use the cleaner 1 from above while using the cleaner 1. It can be comprised so that the state of can be confirmed.

  The display 45 may be configured in various forms such as a liquid crystal display, a combination of a plurality of LEDs, or 7 segments, and may be configured to allow information visualization. The display 45 may be defined as a single configuration for outputting a screen, or may be defined as including a display PCB 451 on which the display 45 is mounted.

  The display 45 may be mounted on the cover base 42 and shielded by the out cover 43. At this time, the whole or a part of the out cover 43 can be configured to allow light to pass therethrough. Therefore, when the display 45 shielded by the out cover 43 is operated, the out cover 43 is transmitted through the out cover 43. It would be possible to display information externally.

  Therefore, the out cover 43 may be formed of a material that can transmit light as a whole, or may be configured so that only a region corresponding to the display 45 can transmit light. Of course, an opening may be formed in the out cover 43, the display may be mounted on the opening, and the display 45 may be directly exposed to the outside or shielded by another transparent cover. Let's go.

  The display 45 may be fixedly mounted on the upper surface of the cover base 42, and the display 45 may be connected to the main PCB 301 by a display cable 452. Therefore, the display 45 can be driven by the information and power transmitted from the main PCB 301.

  The display 45 can display the operation state of the vacuum cleaner 1, and is configured to display, for example, the remaining battery level of the battery unit 38 or the time that can be operated with the current remaining battery level. obtain. In addition, information such as an abnormal operation state of the vacuum cleaner 1 or replacement of the dust collection box 50 may be displayed.

  FIG. 28 is a plan view of the cover member in a state where the display according to the embodiment of the present invention is turned off. FIG. 29 is a plan view of the cover member in a state where the display according to the embodiment of the present invention is turned on.

  Referring to the drawing, the display 45 is turned off when the cleaner 1 is not operating. In such a state, as shown in FIG. 28, the display 45 is not exposed to the outside in a state where the display 45 is shielded by the out cover 43, and only the appearance of the out cover 43 itself can be seen.

  When the cleaner 1 is activated by a user operation, the display 45 is turned on, and a screen output from the display 45 can be exposed to the outside through the out cover 43 as shown in FIG. That is, when the display 45 becomes brighter while the screen is output to the display 45, the screen of the display 45 can be seen from the outside while the light of the display 45 passes through the out cover 43.

  The display 45 can display the state of the battery unit 38 of the vacuum cleaner in the form of a picture, and the user can check the state of the battery unit 38 from the screen output to the display 45 and charge or clean the battery unit 38. The execution of the work can be determined.

  Of course, the display 45 can display various information in addition to the state of charge of the battery unit 38.

  FIG. 30 is a perspective view in which the cover member is opened. FIG. 31 is an exploded perspective view showing the coupling structure of the link assembly according to the embodiment of the present invention.

  As shown in the drawing, the cover member 40 is formed with the cover member coupling portion 421 at the rear end, and the cover member coupling portion 421 is coupled to a cover member coupling hole 372 formed in the upper deco 37 of the main body 30. Can do. When the cover member coupling portion 421 is coupled to the cover member coupling hole 372, the cover member 40 is rotatably mounted, and the cover member 40 rotates about the cover member coupling portion 421 as an axis. The inside can be opened and closed.

  The cover member 40 can be opened and closed during the separation work of the dust collection box 50. If the cover member 40 is kept open during such work, the separation work of the dust collection box 50 can be performed more easily. It can be performed.

  In particular, since the front end of the cover member 40 has a structure in which the fitting portion 241 of the suction hose 24 is mounted, the cover member 40 is structurally closed naturally by the weight of the suction hose 24. .

  In order to maintain the open state of the cover member 40 in such a state, a link assembly 90 that connects the rear end of the cover member 40 and the inside of the upper deco 37 may be provided.

  The link assembly 90 includes a rotation link 91 attached to the cover member coupling portion 421, a slider 92 coupled to the rotation link 91 and slidingly moved when the rotation link 91 rotates, and elastically supporting the slider 92. And a spring 93.

  The rotating link 91 includes a rotating part 911 that is rotatably attached to the cover member coupling part 421, and a supporting part 912 that is extended from both ends of the rotating part 911 while being separated from each other. Can do.

  The rotating portion 911 is inserted between a pair of the cover member coupling portions 421, and a rotation shaft 911 a protruding laterally from both side ends of the rotating portion 911 is a rotation formed on the cover member coupling portion 421. It can be inserted into the shaft hole 421a. Accordingly, the rotation link 91 can rotate with respect to the rotation shaft 911a, and can rotate when the cover member 40 is opened and closed.

  The supporting part 912 is extended in a state of being separated from each other, and a space part 913 in which an end of the slider 92 can be accommodated can be formed between the pair of supporting parts 912. Slider fixing portions 912a and supporting protrusions 912b may be formed at the ends of the pair of supporting portions 912, respectively.

  The slider fixing portion 912a protrudes in a direction facing each other at the end of the supporting portion 912, and is located inside the space portion 913. The slider fixing portion 912a may be inserted into the slider fixing groove 921 of the slider 92. The slider fixing portion 912a can be a rotation axis of the slider 92 or the rotation link 91.

  The supporting protrusions 912b are formed to protrude laterally from the outer surface at the end of the supporting part 912. The supporting protrusion 912b protrudes outward and can be selectively locked and restrained by an interference protrusion 375a inside the link assembly housing portion 373 described later when the cover member 40 is opened and closed.

  Meanwhile, a supporting slit 912c may be formed at each end of the supporting part 912. The supporting slit 912c allows the end of the supporting part 912 to be easily elastically deformed when the supporting protrusion 912b and the interference protrusion 375a interfere with each other.

  The slider 92 may have a rear end disposed inside the space portion 913 and a front end portion accommodated in a link assembly accommodating portion 373 formed in the main body portion 30.

  Slider fixing grooves 921 that are recessed inward may be formed on the left and right sides of the slider 92. The slider fixing groove 921 is formed so as to open rearward, and is formed so as to accommodate the slider fixing portion 912a formed in a shaft shape. The slider 92 can operate in conjunction with the rotary link 91.

  A slider guide 922 may be formed in front of the slider fixing groove 921. The slider guide 922 may extend from the end of the slider fixing groove 921 to the end of the slider 92. The slider guide 922 is provided with a pair of ribs on both the left and right sides and accommodates guide ribs 374a, which will be described later, to allow the slider 92 to move smoothly.

  A spring hole 923 that is recessed inward is formed on the rear surface of the slider 92. It is considered that the spring 93 is inserted into the spring hole 923 and is compressed or elastically deformed by the movement of the slider 92 to provide an elastic force to the slider 92.

  Meanwhile, the upper deco 37 may be formed with the link assembly receiving portion 373. The link assembly receiving part 373 may be provided on the upper surface of the body part 30. The slider 92 and the rotary link 91 can be formed in a size that allows entry and exit.

  Specifically, a slider accommodating portion 374 that accommodates the slider 92 may be formed at the inner center of the link assembly accommodating portion 373. In addition, guide ribs 374 a are formed to protrude on both side wall surfaces of the slider accommodating portion 374. The guide rib 374a protrudes so as to be inserted into the slider guide 922, and may be extended in the insertion direction of the slider 92. Accordingly, the guide rib 374a and the slider guide 922 allow the slider 92 to slide on the set path without the slider 92 being removed when the slider 92 slides in the front-rear direction.

  The link assembly receiving portion 373 may further include a link receiving portion 375 into which the rotating link 91 can be selectively inserted. The link housing part 375 is located behind the slider housing part 374, provides a space in which the rotating link 91 can be housed, and can be opened rearward.

  An interference protrusion 375a that protrudes inward may be formed on the inner wall surface of the link receiving portion 375. The interference protrusion 375a supports the supporting protrusion 912b formed on the supporting portion 912 in a state in which the rotating link 91 is pulled out in a state where the cover member 40 is opened and the rotating link 91 is pulled out. Can be maintained.

  At this time, the interference protrusion 375a protrudes so as to incline at a predetermined angle. Therefore, when the supporting protrusion 912b is supported, the rotating link 91 can be supported in an inclined state. That is, when the interference protrusion 375a supports the supporting protrusion 912b, the cover member 40 is maintained in an inclined state, and the cover member 40 is maintained in an open state.

  The opening / closing state of the cover member 40 may be determined according to whether the supporting protrusion 912b is supported by the interference protrusion 375a or gets over the interference protrusion 375a by the user's rotation operation of the cover member 40.

  FIG. 32 is a cross-sectional view showing a state of the link assembly in a state where the cover member is closed.

  The state of the link assembly 90 in a state in which the cover member 40 is closed will be described with reference to the drawings. In the state in which the cover member 40 is closed, the cover member 40 shields the opened upper surface of the main body 30. It becomes like this. The lower end of the cover member 40 is in contact with the lower end of the upper deco 37, and the link assembly 90 of the cover member 40 can be in a state of being restrained by the upper deco 37.

  The slider 92 and the rotary link 91 are inserted into the link assembly receiving portion 373 of the upper deco 37, and the rotary link 91 maintains a horizontal state or the same extension line as the slider 92. To do.

  At this time, since the slider 92 is completely inserted into the slider accommodating portion 374, the spring 93 is compressed to the maximum. Accordingly, when the user releases the restraint of the locking assembly 80 to open the cover member 40, the slider 92 is pushed by the elastic force of the spring 93, and the cover member 40 is naturally forced to rotate. Will be added.

  In such a state, the user presses the pressing member 81 to open the cover member 40 to operate the locking assembly 80, releases the restraint between the cover member 40 and the main body 30, and the cover member 40. To make it possible to open the door. Then, the user can open the cover member 40 by taking the grip portion 41 and turning the cover member 40.

  FIG. 33 is a cross-sectional view showing a state of the link assembly in a state where the cover member is opened. FIG. 34 is an enlarged view of a portion A in FIG.

  The state of the link assembly 90 in a state in which the cover member 40 is opened will be described with reference to the drawings. When the user opens the cover member 40, the cover member 40 is watched around the cover member coupling portion 421. It can be released by rotating in the turning direction.

  At this time, the rotary link 91 rotatably connected to the cover member coupling portion 421 also rotates, and the slider 92 connected to the rotary link 91 is rearwardly guided by the slider guide 922 and the guide rib 374a (see FIG. Slide to the right (30). The spring 93 that elastically supports the slider 92 during the movement of the slider 92 provides an elastic force, thereby making the movement of the slider 92 easier.

  The rotary link 91 can move horizontally with the slider 92 so that the slider 92 can be pulled out by pulling the slider 92, and simultaneously rotates counterclockwise. At this time, the supporting protrusion 912 b of the rotating link 91 is in contact with the interference protrusion 375 a on the link assembly housing portion 373.

  When the user completely opens the cover member 40, the rotary link 91 may be in a state as shown in FIGS. At this time, the supporting protrusion 912b passes through the interference protrusion 375a by a user's turning operation of the cover member 40. At this time, the supporting part 912 is elastically deformed, and the supporting protrusion 912b becomes the interference protrusion. 375a can be overcome.

  In this state, the opening of the cover member 40 can be stopped, and the supporting protrusion 912b is in contact with the interference protrusion 375a even when the grip part 41 is released, and the rotation link 91 is set. The angle can be maintained. Accordingly, the cover member 40 can be kept open at a set angle, and the user can attach and detach the dust collection box 50 or perform necessary work inside the main body 30 with the cover member 40 opened. It can be carried out.

  On the other hand, when the cover member is to be closed again in the state shown in FIGS. 33 and 34, the grip member is taken and the cover member is pushed, while the cover member is rotated counterclockwise. You can let it close.

  At this time, when the cover member 40 starts to rotate in the counterclockwise direction, the supporting protrusion 912b gets over the interference protrusion 375a by the force applied by the user, and the supporting part 912 easily moves the supporting protrusion 912b. It can be elastically deformed to

  When the cover member 40 is completely rotated and closed, the state shown in FIG. 29 is obtained. When the cover member 40 is closed, the cover restraining projection 843 of the locking assembly 80 is inserted into the projection restraining port 376. The cover member 40 can be kept closed while being restrained.

  Meanwhile, the display cable 452 may be guided to the inside of the main body 30 through a cover member coupling portion 46 extending rearward from the rear end of the cover member 40. The display cable 452 is guided along the inside of the cover member coupling portion 46 and is not exposed to the outside. The display cable 452 is guided to the inside of the main body 30 through the rear end of the cover member coupling portion 46 that is the rotation center of the cover member 40. Therefore, the display cable 452 is not exposed. The display cable 452 is not damaged even when the cover member 40 is continuously opened and closed.

  FIG. 35 is a partial perspective view showing the structure of the cover member coupling portion and the arrangement of the display cable according to the embodiment of the present invention.

  Referring to the drawings, the structure of the cover member coupling portion 46 will be described in more detail. Combined with

  The cover member coupling portion 46 includes a bent portion 461 extending downward by a predetermined length from the rear end of the cover base 42 and an extended portion 462 extending rearward from the end portion of the bent portion 461. Can be done.

  A bent portion hole 463 into which the rotating shaft 911a of the rotating portion 911 of the rotating link 91 is inserted may be formed on the inner side surface of the bent portion 461 on the left and right sides. Accordingly, one end of the rotary link 91 is disposed in a space between the pair of bent portions 461 and can be rotatably coupled to the inner surface of the bent portion 461.

  A cover rotation shaft 464 may be formed at both ends of the extension 462. The cover rotation shaft 464 protrudes outward from the outer surface of the extension 462 and can be axially coupled to the cover member coupling hole 372 of the upper deco 37. Therefore, the cover member 40 can be rotated around the end of the cover member coupling portion 46, that is, the cover rotation shaft 464, and the cover member 40 is opened and closed by the rotation.

  Meanwhile, a guide space 465 that is recessed inward is formed in the cover member coupling portion 46, and the guide space 465 may be formed from the front end to the rear end of the cover member coupling portion 46. A cable hole 466 may be formed at the rear end of the guide space 465, that is, the rear end of the cover member coupling portion 46.

  Accordingly, in a state where the cover member 40 is rotatably coupled to the upper deco 37, the cover member coupling portion 46 is inserted into the deco opening 377 of the upper deco 37. And in such a state, the said cover member coupling | bond part 46 can make the inner side of the said cover member 40 and the inner side of the said main-body part 30 communicate.

  The display cable 452 may be disposed in the guide space 465 of the cover member coupling part 46. The display cable 452 is guided along the cover member coupling portion 46 and passes through the cable hole 466 to enter the inside of the main body 30. The display cable 452 that is inside the main body 30 may be connected to the main PCB 301. Of course, in addition to the main PCB 301, the display cable 452 may be connected to another PCB inside the main body 30 or a configuration for supplying power.

  Meanwhile, a plurality of reinforcing portions 467 may be further formed in the guide space 465. The reinforcing portion 467 may be formed in a rib shape, and a plurality of the reinforcing portions 467 may be formed in an extending direction of the cover member coupling portion 46 and a direction intersecting therewith.

  A stopper 47 may be formed in the space between the cover member coupling portions 46 provided on the left and right sides. The stopper 47 is configured to prevent the cover member 40 from rotating excessively in contact with the outer surface of the upper deco 37 in a state where the cover member 40 is completely opened during a rotation operation for opening the cover member 40. Limiting can prevent the rotating link 91 from being broken or separated.

  FIG. 36 is a diagram illustrating a cable arrangement state inside the cover base of the cover member.

  As illustrated, a locking assembly 80 may be disposed on the cover base 42 of the cover member 40. The locking assembly 80 may include the pressing member 81, a transmission member 82, a main link 83, and a sub link 84. At this time, the pressing member 81 is fixedly attached to the grip portion 41, and the configuration of the locking assembly 80 other than the grip portion 41 may be disposed on the cover base 42 so as to interact.

  A plurality of obstacle sensing members 44 may be disposed on the front surface of the cover member 40. The obstacle sensing member 44 allows the cleaner body 10 to check for obstacles while the cleaner body 10 is moving, and may be disposed along the front surface of the cover base 42. .

  A plurality of the obstacle sensing members 44 may be provided, and a plurality of the obstacle sensing members 44 may be provided on the center of the front surface of the cover base 42, i. That is, two obstacle sensing members 44 may be provided on both the left and right sides with respect to the center of the cover base 42. The front surface of the cover member 40 forms a rounded surface, and the plurality of obstacle sensing members 44 emit light or ultrasonic waves for sensing in a direction perpendicular to a tangent to the front surface of the cover member 40. Can be configured. The obstacle sensing member 44 may include a laser sensor, an optical sensor or an ultrasonic sensor, and a vision camera that can sense an obstacle in the traveling direction or the proximity position of the cleaner 1.

  The obstacle sensing member 44 includes a plurality of sensor boards 442 for operating a sensor or a sensing device, and a sensing member cable 443 may be connected to each of the plurality of sensor boards 442. The sensing member cable 443 may enable power supply for the operation of the obstacle sensing member 44 and transmission of a sensing signal.

  A plurality of the sensing member cables 443 are configured to connect the sensor substrates 442, and may be guided along the inner periphery of the cover base 42 to the rear where the cover member coupling portion 46 is disposed. . At this time, the plurality of sensing member cables 443 are gathered together by a cable guide member 443a such as a contraction tube, a tape, or a cable tie, and pass through the cover member coupling portion 46 in such a state. Can do. That is, the cable guide member 443 a may be disposed at least in a section that passes through the cover member coupling portion 46.

  At this time, the sensing member cable 443 passes through the cover member coupling portion 46 (on the left side in FIG. 36) on one side of the pair of cover member coupling portions 46 disposed at the rear end of the cover base 42. It can be guided inside the part 30. Accordingly, the sensing member cable 443 can be prevented from being damaged by the continuous opening operation of the cover member 40 and can be easily disposed inside the main body 30 through the cover member coupling portion 46. .

  Meanwhile, the display 45 and the display PCB 451 may be disposed on the upper surface of the cover base 42. Of course, the display 45 and the display PCB 451 may be fixedly mounted on the back surface of the out cover 43 of the cover member 40.

  The display PCB 451 may be fixedly mounted on the upper surface of the cover base 42, and the display 45 may be mounted on the display PCB 451. The display 45 may include a light guide 45a that contacts the back surface of the out cover 43, and the light guide 45a may include a plurality of LED holes 45b. The LEDs (not shown) are accommodated in the plurality of LED holes 45b, and can be lit independently. Accordingly, the remaining amount of the battery unit 38 can be displayed by the light guided to the LED hole 45 b and transmitted through the out cover 43.

  Meanwhile, the display cable 452 may be attached to the display PCB 451. The display cable 452 includes a plurality of electric wires and can be bundled together by the same cable guide member 452a as the cable guide member 443a. The cable guide member 452a may be disposed at least in a section passing through the cover member coupling portion 46. The display cable may be guided to the inside of the main body 30 through the cover member coupling portion 46. At this time, the display cable 452 is not the cover member coupling portion 46 to which the sensing member cable 443 is guided, but the cover member coupling portion 46 on the other side (the right side in FIG. 36). Can be guided through. That is, the sensing member cable 443 and the display cable 452 can be separately guided to the pair of cover member coupling portions 46 provided at the rear end of the cover base 42.

  FIG. 37 is a view showing a coupling structure of the electric wire to the cleaner body side.

  As shown in the drawing, the sensing member cable 443 and the display cable 452 are guided to the inside of the main body 30 through the pair of cover member coupling portions 46 and are opened and closed by the rotation of the cover member 40. Also, the cable can be guided to the outside without being exposed.

  The sensing member cable 442 entering the inside of the main body 30 may be guided to one side of the main body 30 to which the moving wheel 60 is attached. The sensing member cable 442 may be connected to a sensing unit 306 attached to the main body 30. Accordingly, the obstacle sensing signal sensed by the obstacle sensing member 44 is transmitted to the sensing unit 306 for processing, and the driving of the moving wheel 60 is controlled to adjust the travel of the cleaner body 10. it can.

  At this time, a connector 443b that can be coupled to each other is provided at one end of the sensing member cable 442 and one side of the sensing unit 306, and the sensing member cable 442 and the sensing unit 443b can be easily connected to each other. It would be possible to connect the part 306.

  The display cable 452 entering the inside of the main body 30 is connected to the battery unit 38 mounted on the lower frame 33 while being guided to the inside of the main body 30, or the battery unit 38. Could be linked to other PCBs or devices that could provide information about the remaining amount of

  That is, the information regarding the remaining amount of the battery unit 38 and the power source transmitted in the state where the display cable 452 is connected are transmitted to the display 45, and the operation information of the battery unit 38 can be transmitted to the user.

  Of course, a connector 452b may also be formed at the end of the display cable 452, so that it can be configured to be easily coupled with a counterpart.

  FIG. 38 is a perspective view of the dust collection box. FIG. 39 is an exploded perspective view of the dust collection box.

  As shown in the figure, the dust collection box 50 separates and stores dust in the air flowing in from the suction device 20, and the sucked air first separates dust and air by a cyclone method. After being sequentially filtered by the cyclone 54 and the second cyclone 55, it can be discharged from the discharge port 512 and flow into the main body 30.

  The dust collection box 50 generally includes a cylindrical transparent case 53, an upper cover 51 that opens and closes the opened upper end of the transparent case 53, and a lower cover 52 that opens and closes the opened lower end of the transparent case 53. Can be included. In the transparent case 53, a first cyclone 54, a second cyclone 55, an inner case 544, a dust compression unit 56, a guide unit 543, and the like may be accommodated.

  Furthermore, the upper cover 51 forms an upper surface appearance of the dust collection box 50 and is configured to be shielded by the cover member 40 while being attached to the main body 30. A suction port 511 is formed in front of the dust collection box 50, and the suction port 511 communicates with the connector 401 in a state where the cover member 40 is closed, and includes dust sucked from the suction device 20. Air is configured to flow inside the dust collection box 50.

  Although not shown in detail, a flow path guide 518 is provided on the inner side of the upper cover 51, and the air flowing in from the suction port 511 is guided along the outer periphery, and the inner surface of the transparent case 53. Can flow downward along the line. At this time, the flowing air is discharged in one direction along the inner surface of the transparent case 53 by the upper cover 51 and can rotate along the transparent case 53 while rotating in a spiral shape.

  A discharge port 512 is formed behind the upper cover 51 that faces the suction port 511. The discharge port 512 is an outlet through which dusted air passing through the first cyclone 54 and the second cyclone 55 inside the dust collection box 50 is discharged to the outside of the dust collection box 50. The air inside the dust collection box 50 can be guided to the discharge port 512 by the flow path guide 518 provided inside the upper cover 51. The discharge port 512 is in contact with the filter hole 361a of the pre-filter assembly 36, and the air can flow into the main body 30 from the filter hole 361a.

  Meanwhile, a dust collection handle 513 may be provided on the upper surface of the upper cover 51 so that the upper cover 51 can be pulled upward. The dust box handle 513 may include a handle portion 513a that is laterally extended so that a user can hold it, and side extension portions 513b that extend vertically from both ends of the handle portion 513a. The side extension 513b is inserted inside the upper cover 51, and at this time, the handle 513a can be in close contact with the upper surface of the upper cover 51. When the dust collection box 50 is mounted, the dust collection box handle 513 is kept inserted by its own weight and does not interfere when the cover member 40 is opened and closed.

  An upper cover insertion portion 514 extending downward along the circumference is formed at the lower end of the upper cover 51. The upper cover insertion portion 514 is provided with an upper gasket 515, and the upper cover 51 is The transparent case 53 is configured to be airtight when attached to the transparent case 53. The upper cover 51 is maintained in a state of being coupled to the transparent case 53 by an upper rocker 57 described later.

  The lower cover 52 may be formed in a corresponding shape so as to shield the opened lower surface of the transparent case 53. A lower gasket 523 is provided around the lower cover 52 and tightly contacts the transparent case 53 in a state in which the lower cover 52 is closed, so that the space between the transparent case 53 and the lower cover 52 is hermetically sealed.

  A transmission gear 59 may be provided at the center of the lower cover 52. The transmission gear 59 connects the compression motor assembly 323 and the dust compression unit 56, and transmits power so that the dust compression unit 56 can be driven by driving the compression motor assembly 323.

  One side of the lower cover 52 is axially coupled to the lower end of the transparent case 53, and the lower cover 52 can be opened and closed by rotating the lower cover 52 in order to dispose of dust. The lower cover 52 is maintained in a state of being coupled to the transparent case 53 by a lower rocker 58 described later. Therefore, the lower cover 52 can be selectively opened and closed by operating the lower rocker 58.

  The first cyclone 54 is configured to remove foreign matter and dust from the inflowed air, and to allow the air from which the foreign matter and dust have been removed to flow into the interior. The first cyclone 54 may include a cylindrical strainer 541 having a plurality of holes and a dust filter 542 provided outside or inside the strainer 541.

  Accordingly, the air flowing along the transparent case 53 is filtered by the filter unit 39, and the filtered dust flows into the strainer 541 and falls downward, passes through the guide unit 543, and collects the collected dust. The dust can be stored in the first dust collection space 501 below the dust box 50. Meanwhile, fine dust that has not been filtered by the filter unit 39 may pass through the filter unit 39 and flow into the second cyclone 55 to be separated.

  The second cyclone 55 may be configured to include a plurality of casings 551 that are accommodated in the strainer 541 and formed in a conical shape that narrows downward. The upper end of the casing 551 and the lower end of the casing 551 are opened, and fine dust is separated and discharged downward while the sucked air rotates inside the casing 551, and the air separated from the fine dust is upward. It can have a flowing structure. The fine dust separated by the casing 551 can be stored in the second dust collection space 502 separated from the first dust collection space 501.

  An inlet 551a through which air can flow may be formed at the top of the casing 551. The inlet 551a is provided with a guide vane 552 formed in a spiral shape along the inner periphery of the casing 551 to generate a rotational flow of the incoming air.

  In the upper part of the casing 551, a vortex finder 553 in which an outlet 553a for discharging air separated from fine dust inside the casing 551 is formed. The vortex finder 553 shields the opened upper surface of the casing 551, and the outlet 553 a may be disposed at the center of the casing 551. A cyclone cover 554 that forms the upper surface of the second cyclone 55 is provided, and the cyclone cover 554 is formed to communicate with the outlets 553a of the plurality of vortex finders 553. The vortex finder 553 and the cyclone cover 554 may be integrally formed, and the guide vane 552 may be formed integrally with the vortex finder 553. The cyclone cover 554 may be fixed to the upper cover 51 or may be fixed to the upper end of the transparent case 53.

  The air discharged upward from the outlet 553a of the vortex finder 553 flows through the upper cover 51, flows along the inside of the main body 30 from the discharge port 512, and then flows from the rear cover 314 to the main body. The part 30 can be exhausted to the outside.

  The inner case 544 may support the first cyclone 54 and the second cyclone 55 and may be formed by dividing the first dust collection space 501 and the second dust collection space 502. The inner case 544 is formed in a cylindrical shape whose upper and lower surfaces are opened, but may have a lower diameter smaller than the upper part. Accordingly, the space between the inner case 544 and the transparent case 53 is defined as the first dust collection space 501 in which the dust separated by the first cyclone 54 is stored, and is located inside the inner case 544. The space may be defined as a second dust collection space 502 in which garbage separated by the second cyclone 55 is stored.

  The upper part of the inner case 544 is configured such that the diameter decreases toward the lower side and the lower part of the casing 551 can be accommodated. A guide unit 543 may be provided on the upper part of the inner case 544.

  The guide unit 543 is configured to move downward while spirally rotating when dust and air separated by the first cyclone 54 flow downward, and on the outside of the inner case 544. A guide base 543a to be mounted and a vane 543b protruding from the guide base 543a may be included.

  The guide base 543a may be formed in a cylindrical shape and disposed outside the inner case 544. The guide base 543a may be coupled to the inner case 544, or may be integrally formed with the inner case 544. The guide base 543a may be rotatably mounted on the outer side of the inner case 544. The guide base 543a may be configured integrally with the dust compression unit 56.

  The vane 543b may be formed along the outer peripheral surface of the base 31, and may be inclined so as to force the flow direction of dust and air in a spiral direction. At this time, the plurality of vanes 543b are arranged so that at least a part of the adjacent vanes 543b overlap each other when viewed from above, and dust and air pass through a flow path formed between the adjacent vanes 543b. Can move downward.

  The dust guided to the vane 543b passes through the vane 543b and is stored in the first dust collection space 501. In addition, the dust stored in the first dust collection space 501 does not flow backward in the reverse direction due to the structure of the vane 543b which is formed to be inclined and overlapped in the vertical direction. It remains in the dust space 501.

  In particular, a backflow blocking portion 531 is formed on the inner surface of the transparent case 53 corresponding to the region of the vane 543b. The backflow blocking parts 531 may be arranged at equal intervals along the inner periphery of the transparent case 53. The backflow blocking part 531 may be formed in a rib shape extending in a direction intersecting with the vane 543b.

  Accordingly, a part of the dust flowing backward from the first dust collection space 501 hits the reverse flow blocking portion 531 passing through the vane 543b, and thus cannot pass through the vane 543b and falls again downward. Primary compression is performed. That is, some of the dust flowing upward is continuously dropped by the vane 543b and the backflow blocking unit 531 and is compressed while colliding with other dust.

  The dust compression unit 56 is provided at a lower part of the inner case 544 and configured to pressurize dust stored inside the first dust collection space 501 by rotation to reduce the volume of the dust.

  Specifically, the dust compression unit 56 may include a rotation unit 561 and a pressure unit 562. The rotating part 561 is formed in a cylindrical shape and is attached to the outside of the inner case 544. The rotating unit 561 may rotate independently depending on the coupling state with the inner case 544, and may be configured to rotate together with the inner case 544. Of course, when the rotating part 561 is coupled to the guide unit 543, it may be rotated together with the guide unit 543.

  The pressurizing unit 562 may be formed to cross the first dust collection space 501 from one side of the rotating unit 561 to the inner surface of the transparent case 53. The pressurizing part 562 is formed in a plate shape corresponding to the cross section of the first dust collection space 501, and can divide the inside of the first dust collection space 501, and the inside of the first dust collection space 501. The inner wall (not shown) extended inward so as to be able to overlap with the pressurizing part 562 is formed, and the dust stored in the first dust collection space is separated from the pressurizing part 562 and the inner part. It can be compressed by forward / reverse rotation of the pressurizing part 562 with the wall. That is, the dust stored in the first dust collection space 501 is secondarily compressed by the rotation of the pressurizing unit 562.

  A plurality of vent holes 562 a are formed in the pressurizing unit 562 to eliminate air resistance that may occur when the pressurizing unit 562 rotates, and to eliminate pressure imbalance in a space partitioned by the pressurizing unit 562. can do. A deco member 563 that contacts the inner surface of the transparent case 53 may be attached to the extended end of the pressure unit 562. The deco member 563 is formed in a quadrangular shape that is in surface contact with the transparent case 53, and can shield the pressure portion 562 and the transparent case 53. The deco member 563 can be formed of a wear-resistant material, and can be formed of a lubricious material to smoothly rotate the pressure unit 562.

  Meanwhile, a pair of supporting ribs 532 may be formed on the outer surface of the transparent case 53. The supporting rib 532 may be extended from the upper end to the lower end of the transparent case 53. The supporting ribs 532 are in contact with the left and right ends of the front surface of the main body 30 when the dust collection box 50 is mounted, and guide the accurate mounting of the dust collection box 50.

  FIG. 40 is an exploded perspective view of the combined structure of the upper cover and the lower cover of the dust collection box as seen from one side. FIG. 41 is a sectional view in which the upper cover is opened. FIG. 42 is an exploded perspective view of the combined structure of the upper cover and the lower cover of the dust collection box as viewed from the other side. FIG. 43 is a sectional view in which the lower cover is opened.

  As shown in the drawing, the upper cover 51 and the lower cover 52 may be attached to the upper and lower ends of the transparent case 53 to shield the transparent case 53, respectively.

  The upper cover 51 can be maintained in a state of being restrained by the transparent case 53 by the upper rocker 57. The upper cover 51 can be separated from the transparent case 53 by operating the upper rocker 57 when the internal structure of the dust collection box 50 is disassembled for cleaning or maintenance is required.

  The upper locker 57 may be mounted on an upper locker mounting portion 533 formed at the upper end of the transparent case 53. At this time, the rocker rotation shaft 571 protruding from the both side surfaces of the upper rocker 57 is inserted and mounted in the rocker hole 533a on the upper rocker mounting portion 533, and the upper rocker 57 can be rotated.

  A rocker spring 572 is provided between the upper rocker 57 and the upper rocker mounting portion 533 below the rocker rotation shaft 571. The lower portion of the upper rocker 57 is moved by the spring mounting portion 573 and the spring guide 533b. Elastic support.

  The upper rocker 57 may be further extended from the upper end of the transparent case 53, and a hook portion 574 protruding in a hook shape may be formed at the extended end portion. The hook part 574 is inserted into the hook restraining part 516 of the upper cover 51 in a state where the upper cover 51 is mounted so that the hook part 574 can be locked and restrained to each other.

  An upper protrusion 517 is formed on one side of the upper cover 51 facing the hook restraining portion 516, and an upper groove 534 into which the upper protrusion 517 is inserted at the corresponding upper end of the inner surface of the transparent case 53. Is formed.

  Accordingly, when the upper cover 51 is attached, one end of the upper cover 51 is fixed by the connection of the upper protrusion 517 and the upper groove 534, and the other end of the upper cover 51 is fixed by the upper rocker 57. Thus, the state in which the upper cover 51 is mounted can be maintained. In order to separate the upper cover 51, the upper rocker 57 is operated to release the restraint at one end of the upper cover 51, and then the upper protrusion 517 and the upper groove 534 are separated.

  The lower cover 52 can be kept closed by the lower rocker 58, and the first dust collecting space 501 and the second dust collecting space 502 are opened by opening the lower cover 52, so that the first dust collecting space 501 is opened. The dust in the dust collection space 501 and the second dust collection space 502 can be discarded.

  A lower cover shaft 521 is formed at one end of the lower cover 52. The lower cover shaft 521 is rotatably coupled to a lower cover coupling portion 535 formed at the lower end of the transparent case 53. Accordingly, when the lower cover 52 is opened and closed, the lower cover 52 rotates with respect to the lower cover shaft 521.

  A lower locker 58 is provided at the other end of the transparent case 53 corresponding to the lower cover coupling portion 535. The lower rocker 58 is configured to be slidable in the vertical direction so as to selectively restrain the lower cover 52.

  Specifically, a lower rocker mounting portion 536 is formed at the lower end of the transparent case 53 facing the upper locker mounting portion 533. The lower rocker mounting part 536 is composed of a pair of protruding ribs, and is formed with a rocker slot 536a extending in the vertical direction.

  A case engaging portion 537 is formed between the protruding ribs of the lower rocker mounting portion 536. The case engaging portion 537 protrudes from the lower end of the transparent case 53 and is configured such that the lower hook 522 of the lower cover 52 can be locked and restrained in a state where the lower cover 52 is closed.

  The lower rocker 58 is formed in a recessed shape so that the lower rocker mounting portion 536 can be accommodated inside, and rocker protrusions 581 protruding inwardly are formed on both sides of the inner side surface of the lower rocker 58. And inserted into the rocker slot 536a. Accordingly, the lower rocker 58 is mounted so as to be movable up and down while being mounted on the lower rocker mounting portion 536.

  A pushing portion 582 extending downward may be formed in the recessed portion of the lower locker 58. The pushing portion 582 is in contact with a lower hook 522 formed on the lower cover, and is formed to have an inclined surface 582a. When the lower rocker 58 moves downward, the lower hook 522 is moved to the case engaging portion 537. The lower cover 52 is released by pushing so as to be separated from the lower cover 52.

  An inclined surface can be formed at the upper end of the lower hook 522, and the inclined surface 522a of the lower hook 522 is in contact with the inclined surface 582a of the pushing portion 582 when the lower cover 52 is closed. In this state, when the lower rocker 58 moves downward, the pushing portion 582 pushes the inclined surface 522a of the lower hook 522 to elastically deform the lower hook 522. Therefore, the lower hook 522 can be released from restraining the case engaging portion 537 by elastic deformation of the lower hook 522.

  FIG. 44 is an exploded perspective view showing a coupling structure between the lower cover and the dust compression unit. FIG. 45 is an enlarged view of a portion B in FIG.

  As shown in the drawing, a bearing 593 may be mounted at the center of the lower cover 52. A first transmission gear 591 may be provided on the lower surface of the lower cover 52. The first transmission gear 591 may be connected to the compression motor assembly 323 and rotate. When the dust collection box 50 is seated on the seat portion 32, the first transmission gear 591 may be naturally connected to the compression motor assembly 323 and rotated.

  A rotation shaft 591a of the first transmission gear 591 is mounted so as to penetrate the bearing 593, and can be smoothly rotated by the bearing 593. The second transmission gear 592 is disposed on the upper surface of the lower cover 52 and is configured to pass through the bearing 593 and be coupled to the rotation shaft 591a of the first transmission gear 591. Accordingly, the second transmission gear 592 can rotate together with the first transmission gear 591.

  The second transmission gear 592 is formed in a disc shape, and a plurality of gear portions 592a are formed around the second transmission gear 592. The plurality of gear portions 592a are formed on the inner peripheral surface of the rotating portion 561 of the dust compression unit 56. Can be coupled to the gear coupling protrusion 561a.

  That is, when the lower cover 52 is closed with the dust compression unit 56 mounted when the dust collection box 50 is assembled, the gear portion 592a of the second transmission gear 592 and the gear coupling protrusion 561a of the dust compression unit 56 are used. And the dust compression unit 56 can be driven.

  Meanwhile, the second transmission gear 592 may have a coupling boss 592b at the center of the upper surface, and a seating groove 592c on which the gasket plate 594 can be seated can be formed outside the coupling boss 592b.

  A gasket mounting protrusion 592d is formed on the lower surface of the second transmission gear 592. A transmission gear gasket 597 is mounted on the gasket mounting protrusion 592d. The transmission gear mounting portion 592d may be in contact with the inner peripheral surface of the rotating portion 561 and be airtight. At this time, the transmission gear gasket 597 is integrally coupled with the second transmission gear 592 and rotates together with the rotation of the second transmission gear 592.

  The gasket plate 594 is formed in a disc shape, and an internal gasket 595 is attached to shield the opened lower surface of the internal case 544. The internal gasket 595 may be integrally formed by coupling with gasket mounting portions 594a and 594b formed at the upper end of the gasket plate 594. The inner gasket 595 may be formed in a shape corresponding to the opening of the inner case 544.

  The inner gasket 595 is formed in a disc shape, and is provided above the first airtight portion 595a that is in contact with the open lower end of the inner case 544, and inside the inner case 544. And a second airtight portion 595b that contacts the inner surface of the inner case 544, and the opening of the inner case 544 can be hermetically sealed.

  The gasket mounting portions 594a and 594b include a first protrusion 594a protruding upward from the upper surface of the gasket plate 594 and a second protrusion 594b protruding outward from the first protrusion 594a. . Both the first protrusion 594a and the second protrusion 594b are inserted into the lower surface of the internal gasket 595, so that the internal gasket 595 can be firmly fixed to the gasket plate 594.

  Meanwhile, a seating rib 594c inserted into the seating groove 592c may be formed on the lower surface of the gasket plate 594. The seating rib 594c is formed to be movable while being inserted into the seating groove 592c.

  A shaft coupling hole 594d to which a shaft coupling member 596 for coupling the gasket plate 594 and the second transmission gear 592 is fastened is formed at the center of the gasket plate 594. The shaft coupling member 596 may be tightened through the shaft coupling hole 594d and the coupling boss 592b of the second transmission gear 592.

  At this time, the coupling boss 592b is formed higher than the gasket plate 594, and the shaft coupling member 596 does not pressurize the gasket plate 594. Therefore, the gasket plate 594 can be freely rotatably mounted even when coupled to the second transmission gear 592.

  That is, when the compression motor assembly 323 is driven with the dust collection box 50 mounted, the first transmission gear 591 and the second transmission gear 592 rotate and are gear-coupled to the second transmission gear 592. The rotating unit 561 rotates and the dust compression unit 56 is driven.

  At this time, since the gasket plate 594 seated on the second transmission gear 592 is freely rotatably coupled above the second transmission gear 592, the gasket plate 594 stopped even when the second transmission gear 592 rotates. The state can be maintained. Accordingly, the internal gasket 595 attached to the gasket plate 594 can maintain a state of shielding the lower surface of the internal case 544, that is, the second dust collection space 502.

  Hereinafter, the flow of dust and air inside the cleaner when the main motor is driven will be described.

  FIG. 46 is a cross-sectional view showing the flow of air and dust in the cleaner body. 47 is a plan view showing the flow of air and dust in the cleaner body.

  As shown in the drawing, when the user operates the cleaner 1, the main motor 35 is activated, and air including dust can be sucked from the suction device 20 by the suction force generated by the main motor 35.

  The air containing dust can be sucked in from the connector 401 of the cleaner body 10 and sucked into the dust collection box 50 from the suction port 511 of the dust collection box 50. In the dust collection box 50, dust and fine dust can be collected in the first dust collection space 501 and the second dust collection space 502 separated by the first cyclone 54 and the second cyclone 55, respectively.

  Specifically, the air containing dust flowing into the suction port 511 flows between the dust collection box 50 and the strainer 541 through the flow path guide 518. At this time, air and dust flowing in through the flow path guide 518 flow while rotating along the inner wall of the dust collection box 50.

  The flowing dust and air pass through the dust filter 542 and the strainer 541 and the primary dust is filtered, and the filtered air can flow into the space inside the strainer 541. The separated dust falls downward and is stored in the first dust collection space 501 through the guide unit 543. The dust collected in the first dust collection space 501 can be double compressed by the dust compression unit 56, the guide unit 543 and the backflow blocking unit 531 and stored in the first dust collection space 501. .

  Meanwhile, the air filtered through the filter and the strainer 541 flows into the casing 551 from the inlet 551a of the casing 551. At this time, the air that flows into the casing 551 swirls along the inner wall of the casing 551 by the guide vane 552 on the inlet 551a side.

  In this process, fine dust and air are separated, and second-order fine dust can be filtered. The fine dust separated in the casing 551 may fall through the opened lower surface of the casing 551 and be stored in the second dust collection space 502. The filtered air flows upward from the outlet 553a of the vortex finder 553 and then flows from the discharge port 512 to the outside of the dust collection box 50.

  The air discharged from the discharge port 512 may be filtered through the pre-filter assembly 36 while fine dust is filtered. The air that has passed through the pre-filter assembly 36 flows into the space inside the upper frame 34 and passes through the main motor 35. The air that has passed through the main motor 35 flows downward through the plate hole 341a and passes through a filter unit 39 mounted on the lower frame 33.

  Ultra fine dust in the air is separated in the process of passing through the filter unit 39, and finally, it can be filtered down to third order ultra fine dust. Most of the filtered air cools the battery unit 38 below the filter unit and can be expelled rearward through the rear cover 314.

  Part of the air that has passed through the filter unit 39 passes through the first barrier hole 331a, and the noise filter 302 and the main PCB 301 are cooled in this process. The air that has cooled the noise filter 302 and the main PCB 301 can be naturally exhausted into the main body 30 or exhausted through the rear cover 314.

  On the other hand, in order to empty the dust collection box 50 after the vacuum cleaner 1 is used, first, the pressing member 81 is pushed to operate the locking assembly 80 to open the cover member 40. When the cover member 40 is fully opened, the cover member 40 is kept open by the link assembly 90.

  After separating the dust collection box 50 from the main body 30 in such a state, the lower cover 52 can be opened by operating the lower rocker 58. When the lower cover 52 is opened, all the dust in the first dust collection space 501 and the second dust collection space 502 can be removed. In order to clean and inspect the dust collection box 50, the upper cover 51 can be opened by operating the upper rocker 57, and the internal configuration of the dust collection box 50 can be separated and cleaned and inspected. .

  After emptying the dust collection box 50, the dust collection box 50 is mounted again on the main body 30, and the cover member 40 is rotated to close the cover member 40.

  Meanwhile, the user moves while taking the handle 23 while the cleaner 1 is in use, and can adjust the travel of the cleaner body 10 in this process.

  FIG. 48 is a diagram illustrating a stopped state of the cleaner body.

  As shown in the figure, when the cleaner body 10 is stopped without moving, the center of gravity G of the cleaner body 10 is located behind the rotation center C of the moving wheel 60.

  In such a state, the cleaner body 10 tries to rotate in the clockwise direction (positive direction) with respect to the rotation center C of the moving wheel 60, the lower half 313 of the base 31 is lowered, and the front half 312 is Go up.

  At this time, in a state where the rear wheel unit 70 is in contact with the ground, the rear half 313 of the base 31 is prevented from being excessively lowered downward, and the base 31 is elastically supported to stabilize the cleaner body 10. To maintain.

  That is, both the moving wheel 60 and the rear wheel unit 70 on both sides are in contact with the ground, and the cleaner body 10 is in a state where three points are supported. Moreover, the said vacuum cleaner main body 10 will be in the state to which the back of the vacuum cleaner main body 10 in which a gravity center is located became low, and can maintain the stable attitude | position in the stopped state.

  Therefore, the first half of the cleaner body 10 can maintain the set angle α regardless of the presence or absence of dust inside the dust collection box 50 or the amount of dust. In this state, the sensing unit 306 can determine the posture of the cleaner body 10 from the angle.

  That is, the sensing unit 306 confirms that the first half 312 maintains the set angle α, determines that the cleaner body 10 is in a stopped state in which it does not move, and therefore drives the wheel motor 632. Can be maintained in a stopped state.

  FIG. 49 is a diagram showing a running state of the cleaner body.

  As shown in the drawing, when the user moves forward while holding the handle 23 for cleaning, the suction hose 24 connected to the handle 23 is pulled. Since the connector 401 connected to the suction hose 24 is positioned on the cover member 40, a force acts above the rotation center C of the moving wheel 60. Therefore, the cleaner body 10 rotates in the counterclockwise direction (reverse direction) based on the rotation center C of the moving wheel 60 due to the rotational moment.

  The angle β between the front half 312 and the ground may vary depending on the magnitude of the force applied to the connector 401, but the magnitude is smaller than the angle α set when the cleaner body 10 is stopped. Even if the force applied to the connector 401 is increased, the front half 312 is not in direct contact with the ground by the front wheel 312a, and the front wheel 312a is in contact with the ground to stably move the cleaner 1. Can do.

  For example, in a state where the cleaner main body 10 travels stably, the central portion 311 is in a horizontal state with respect to the ground. The front half 312 may be at an angle of 20 ° with the ground and the rear half 313 may be at 10 ° due to the counterclockwise movement of the cleaner body 10. In this state, the cleaner body 10 can travel ideally, but the angle of the cleaner body 10 may vary depending on the momentary force pulled by the user and the ground condition.

  The sensing unit 306 senses the posture of the cleaner body 10 and determines the rotation of the moving wheel 60. When the angle β between the front half 312 and the ground is smaller than the set angle α, the sensing unit 306 drives the wheel motor 632 to rotate the moving wheel 60 counterclockwise. The cleaner body 10 can travel forward by the rotation of the moving wheel 60.

  At this time, the sensing unit 306 may drive the wheel motor 632 as soon as the sensed angle is smaller than the set angle α, and the change value sensed by the sensing unit 306 is set as necessary. You may drive when exceeding the range (for example, 1 degree-2 degrees) made.

  Meanwhile, since the sensing unit 306 can sense a change in the angle β between the front half 312 and the ground, the rotational speed of the wheel motor assembly 63 can be adjusted in proportion to the angle change. For example, when the angle β between the front half 312 and the ground suddenly decreases, the rotational speed of the wheel motor 632 is also increased, and the cleaner body 10 can be moved forward at a high speed. If the angle between the front half 312 and the ground is relatively gradually reduced, the rotational speed of the wheel motor 632 may be made relatively slower.

  When the distance from the user is reduced due to the forward movement of the cleaner body 10, the force applied to the connector 401 may be reduced or eliminated, and when the force applied to the connector 401 is lost, the cleaner body 10 is Rotating in the clockwise direction with the rotation center of the moving wheel 60 as a reference, the state again becomes 48. At this time, the sensing unit 306 can confirm that the front half 312 and the ground are at the set angle α, and can stop the driving of the wheel motor assembly 63.

  Accordingly, when the user grips and moves the handle 23 in the process of using the cleaner 1, a force is applied to the connector 401, and the cleaner body 10 moves forward. When the cleaner main body 10 travels forward and the distance from the user is reduced, the force applied to the connector 401 is weakened, and when the force applied to the connector 401 is lost, the cleaner main body 10 Rotate clockwise to stop.

  On the other hand, with the vacuum cleaner 1 traveling, the angle between the bottom surface of the dust collection box 50 or the front half 312 and the ground (cleaning surface) is set to a set angle (α <set angle <β) or less. If so, the drive 63 of the wheel motor assembly may be decelerated. That is, the constant speed is maintained up to the set angle, but may start to decelerate when the set angle is reached, and stop when the set angle α is reached. Of course, the determination of the angle may be based on the central portion 311 and the rear half portion 313 in addition to the front half portion 312.

  If the above process is repeated, the cleaner body 10 follows the user along with the user's movement, and thus the user can operate autonomously without performing a separate operation for moving the cleaner body 10. It becomes possible to move.

  Since the front half 312 is formed to be inclined, if there is a sill or an obstacle during traveling, it can effectively move over it. That is, even when an obstacle occurs, the cleaner body 10 can travel stably and can continue to travel over obstacles.

  When the user gets over the obstacle of the same height or when the user performs an operation such as lifting the handle 23, the cleaner body 10 rotates in the clockwise direction with respect to the center of the moving wheel, and the second half 313 is on the ground. Can move towards. At this time, it is possible to prevent the rear half unit 313 from being excessively lowered or toppling over while the rear wheel unit 70 is in contact with the ground. The rear wheel unit 70 elastically supports the rear half 313, and when the external force applied to the cleaner body 10 is removed, the cleaner body 10 is brought into a state as shown in FIG.

  On the other hand, the cleaner body 10 may sense an obstacle O during travel. If the obstacle O is sensed, the cleaner body 10 adjusts the driving of the moving wheel 60 to detect the obstacle. You can also avoid it.

  FIG. 50 is a diagram illustrating an obstacle avoidance traveling state of the cleaner.

  As shown in the figure, when the cleaner body 10 is running or starts running in a stopped state, the obstacle sensing member 44 may sense the obstacle O. A plurality of the obstacle sensing members 44 are provided on the front surface of the cover member 40 formed in a curved surface, and the obstacle sensing member 44 avoids traveling when sensing an obstacle O within a set angle range. To do.

  For example, as shown in the figure, when an obstacle is detected by the front sensor 44c of the obstacle sensing member 44 while the cleaner body 10 is running, the position of the obstacle O is detected by the main PCB 301 or the sensing PCB 360a. Is calculated.

  Then, when the position of the obstacle O is calculated, the main PCB 301 speeds up the rotation of the moving wheel 60 on the side closer to the obstacle O among the moving wheels 60 on both the left and right sides of the cleaner main body 10. You can change the direction of travel and avoid obstacles.

  At this time, the main PCB 301 can drive only one wheel motor 632 of the wheel motors 632 on both sides. It would also be possible to avoid O.

  The rotational speed of the wheel motor 632 may be made different according to the distance of the obstacle sensed by the obstacle sensing member 44. That is, when the obstacle O is sensed from a long distance, the rotation speed of the wheel motor 632 is relatively slow, and when the obstacle O is sensed from a short distance, the wheel motor 632 is rotated. The speed can be made relatively fast.

  Thus, the vehicle can travel while avoiding the obstacle O by the obstacle sensing member 44 without performing another operation for avoiding the obstacle O.

  In the embodiment of the present invention, the vacuum cleaner main body 10 is described as traveling forward. However, since the rear half 313 is also inclined, the vacuum cleaner main body 10 is automatically moved by changing the angle of the rear half 313. It would be possible to drive backwards.

  FIG. 51 is a diagram illustrating a sensing range of the obstacle sensing member.

  As shown, the obstacle sensing member 44 senses an obstacle within a set sensing distance L. For example, the obstacle sensing member 44 may have a sensing distance of about 650 mm.

  At this time, the sensing distance L of the obstacle sensing member 44 is set to a distance that does not sense the ground when the cleaner body 10 rotates counterclockwise and the front wheel 312a contacts the ground. be able to.

  This is because, when the sensing distance L is excessively long, there is a problem that the ground can be recognized as an obstacle when the front half 312 of the cleaner body 10 rotates counterclockwise. On the contrary, when the sensing distance L is excessively shortened, the avoidance activation is performed very quickly after the obstacle in front of the cleaner body 10 is sensed. However, there are times when obstacles are completely unavoidable.

  Therefore, the obstacle sensing member 44 may have a set distance L that does not sense the ground when the cleaner body 10 rotates, and can effectively avoid the obstacle after sensing.

  On the other hand, the obstacle sensing member 44 is disposed on the front surface of the cover member 40 which is the uppermost end of the cleaner body 10, so that the ground is not sensed even when the angle of the cleaner body 10 changes, and the obstacle is removed. The irradiation angle of the obstacle sensing member can be set so that it can be sensed effectively.

  For example, when the obstacle sensing member 44 is provided on the lower surface of the cleaner body 10 or provided at a low position, the light beam emitted from the obstacle sensing member 44 must be directed to the ground, and the obstacle is detected by sensing the ground. There is only an error in sensing. In particular, due to the characteristics of the rotating cleaner body 10, it is important to select a position where the ground is not actually sensed and only an obstacle can be identified.

  FIG. 52 is a diagram illustrating a wall running state of the cleaner body.

  As shown in the drawing, the cleaner body 10 may move along a wall surface of a room or a wall surface of furniture for cleaning. Thus, when moving along the wall surface, after the cleaner body 10 recognizes the wall surface and travels along the wall surface without avoiding the wall surface, after the cleaner body 10 completely exits the corner. Must rotate.

  For this, the obstacle sensing member 44 may be set such that the front sensors 44b and 44c and the side sensors 44a and 44d have different sensing distances L1 and L2. The sensing distance L1 of the front sensors 44b and 44c may be set longer than the sensing distance L2 of the side sensors 44a and 44d. For example, when the front sensor has a sensing distance L1 of about 650 mm, the side sensors 44a and 44d may be set to have a sensing distance L2 of about 300 mm.

  When the sensing distance L2 of the side sensors 44a and 44d is equal to or longer than the sensing distance of the front sensors 44b and 44c, the sensing distance L2 of the side sensors 44a and 44d is excessively separated from the wall surface. The front sensors 44b and 44c can no longer sense the wall surface. Eventually, the front sensors 44b and 44c and the side sensors 44a and 44d may not be able to sense at the same time, and the wall surface may not be recognized. For this reason, when the sensing distance L2 of the side sensors 44a and 44d is relatively shortened and positioned closer to the wall surface of the cleaner body 10, the front sensors 44b and 44c and the side sensors 44a and 44d are disposed. Can be recognized simultaneously.

  On the other hand, when the front sensors 44b and 44c and the side sensors 44a and 44d sense an obstacle at the same time while the cleaner body 10 is traveling, it is determined that the obstacle is a wall surface and the avoidance operation is not performed along the wall surface. You can travel. That is, the vehicle travels while maintaining the state in which the front sensors 44b and 44c and the side sensors 44a and 44d sense the wall surface.

  After the cleaner body 10 travels continuously along the wall, the front sensors 44b and 44c recognize that there is no obstacle, and then the side sensors 44a and 44d recognize that there is no obstacle. For example, the main body 10 of the cleaner can be judged to have passed through the corner of the wall and travel in the direction of the corner.

  At this time, the vacuum cleaner main body 10 may be operated so that the side sensors 44a and 44d rotate straight ahead by a set distance after confirming that there are no obstacles. That is, it can be prevented that the cleaner body 10 rotates after completely passing through the corner and the rear portion of the cleaner body 10 hits the wall surface.

  In addition to the above-described embodiments, various embodiments may be possible for the present invention.

  The structure of another embodiment of the present invention is the same as that of the above-described embodiment except for a part of the structure, and the same name is used for the same structure, and the detailed description thereof is omitted.

  FIG. 53 is a diagram illustrating a state in which the main body of the cleaner body according to another embodiment of the present invention is tilted forward. FIG. 54 is a diagram illustrating a state in which the main body portion is tilted rearward. And FIG. 55 is a figure which shows the structure of the support part which concerns on the other Example of this invention.

  Referring to FIGS. 53 to 55, the cleaner main body 1000 includes a main body 1110, a moving wheel 1120, and a battery 1130.

  The main body 1110 may be provided with a dust collection box 1105 for storing garbage sucked from the suction device 1160. The pair of moving wheels 1120 may be coupled to both sides of the main body 1110. The battery 1130 may be detachably coupled to the main body 1110.

  In the vacuum cleaner main body 1000, the portion where the connector 1103 is disposed is defined as the front, and the portion where the battery 1130 is disposed is defined as the rear, based on the vertical line V passing through the rotation center of the moving wheel 1120. be able to. The case where the main body 1110 rotates forward means that the main body 1110 rotates counterclockwise in the drawing (see FIG. 53), and the main body 1110 rotates rearward. Means that the main body 1110 rotates clockwise (see FIG. 54).

  The cleaner body 1000 may further include a driving unit for driving the moving wheel 1120. The cleaner main body 1000 can control the driving of the moving wheel 1120 by the control unit according to the sensing information of the sensing unit that senses the movement of the cleaner main body 1000.

  When the sensing unit is in an OFF state, the moving wheel 1120 may not be driven. In this case, the main body 1110 is inclined according to the position of the center of gravity. For example, when the center of gravity of the main body 1110 is positioned in front of the vertical line V passing through the rotation center of the moving wheel 1120, the main body 1110 is tilted forward as shown in FIG. When located behind the vertical line V, the main body 1110 is inclined backward as shown in FIG.

  When the sensing unit is turned on, the control unit controls the driving of the moving wheel 1120 so that the center of gravity of the main body 1110 is located on a vertical line V passing through the rotation center of the moving wheel 1120. be able to. In this case, the bottom surface B of the main body part 1110 can be separated from the floor surface G as shown in FIG.

  The cleaner body 1000 may further include a rear wheel unit 1140. The rear wheel unit 1140 may be disposed behind the bottom surface of the main body part 1110 and may have a function of limiting an angle at which the main body part 1110 tilts backward.

  The rear wheel unit 1140 may further include an extension 1144. An auxiliary wheel 1142 may be rotatably connected to one side of the extension 1144. The other side of the extension portion 1144 may be rotatably connected to the main body portion 1110 via the rotation shaft 1146. The extension portion 1144 can rotate upward or downward within the range of aa ｀.

  The rear wheel unit 1140 may further include an elastic member 1150. For example, the elastic member 1150 may be a torsion spring. One end 1152 of the elastic member 1150 may be supported by the main body 1110, and the other end 1153 of the elastic member 1150 may be supported by the extension 1144. The elastic member 1150 can apply an elastic force so that the extension portion 1144 rotates in a clockwise direction in the drawing.

  When the main body portion 1110 is tilted to the maximum extent, the front portion of the bottom surface B of the main body portion 1110 may contact the floor surface G. Accordingly, the maximum forward rotation angle of the main body 1110 can be limited.

  Conversely, when the main body 1110 is tilted rearward, the rear wheel unit 1140 may contact the floor G. Accordingly, the maximum rearward rotation angle of the main body 1110 can be limited. Thus, the main body 1110 can be prevented from falling forward or backward.

  When the main body portion 1110 rotates to the maximum extent, the bottom surface B of the main body portion 1110 can make a predetermined angle θ with the floor surface G. At this time, the angle θ between the bottom surface B and the floor surface G of the main body 1110 may be approximately 17 ° to 20 °.

  The battery 1130 may be provided with a cover 1131. The cover 1131 may be exposed to the outside while the battery 1130 is attached to the main body 1110. Accordingly, the cover 1131 can form at least a part of the outer shape of the main body 1110. Further, the user can separate the battery 1130 from the main body 1110 or couple it to the main body 1110 without disassembling the main body 1110.

  Hereinafter, a process in which the battery 1130 is attached to and detached from the main body 1110 will be described in detail. However, in the following, when the battery 1130 is removed from the main body 1110, the center of gravity of the main body 1110 is positioned forward, and when the battery 1130 is coupled to the main body 1110, the main body Only when the center of gravity of 1110 is located rearward will be described.

  FIG. 56 is a diagram sequentially illustrating how the battery is coupled to the cleaner body.

  56A shows a state where the battery 1130 is separated from the main body 1110, and FIG. 56B shows a state where the battery 1130 is coupled to the main body 1110. (C) is a figure which shows a mode that the main-body part 1110 inclined backward.

  The main body part 1110 is formed with a battery coupling part 1107 to which the battery 1130 is coupled. The battery coupling part 1107 may be formed with a part of the main body part 1110 depressed.

  The battery coupling part 1107 is formed on the lower side of the main body part 1110, whereby the battery 1130 is coupled to the lower side of the main body part 1110. For example, the center of gravity of the battery 1130 may be located below the rotational center of the moving wheel 1120 in a state where the battery 1130 is mounted on the main body 1110.

  Therefore, when the battery 1130 is coupled to the main body part 1110, the center of gravity of the main body part 1110 moves downward, so that the running stability of the cleaner body 1000 can be improved.

  When the battery 1130 is coupled to the lower side of the main body part 1110, there is an advantage that the running stability is improved. However, the battery 1130 has to be coupled to the lower side of the main body part 1110. May be inconvenient for the user who joins.

  However, when the battery 1130 is separated from the main body 1110, the center of gravity of the main body 1110 may be positioned in front of a vertical line passing through the center of the moving wheel 1120. Accordingly, when the battery 1130 is separated from the main body 1110, the main body 1110 can be tilted forward about the moving wheel 1120.

  When the main body part 1110 is tilted forward, the front part of the bottom surface of the main body part 1110 contacts the floor surface. At this time, the battery coupling part 1107 is inclined upward. Accordingly, the user can easily connect the battery 1130.

  The battery 1130 may be coupled to the main body 1110 in an oblique direction by a coupling guide unit provided in the battery coupling unit 1107. Specifically, the insertion direction S of the battery 1130 may form an acute angle with the vertical line V and the floor surface. Accordingly, when the front portion of the bottom surface of the main body 1110 contacts the floor surface, the insertion direction S of the battery 1130 forms an acute angle with the floor surface.

  When the battery 1130 is coupled to the main body 1110, the center of gravity of the main body 1110 may move backward. That is, when the battery 1130 is coupled to the main body 1110, the center of gravity of the main body 1110 can be located behind a vertical line passing through the center of the moving wheel 1120.

  That is, when the battery 1130 is coupled to the main body part 1110, the main body part 1110 can tilt backward with the moving wheel 1120 as a center. At this time, the rear wheel unit 1140 selectively contacts the floor surface. At this time, the bottom surface B of the main body 1110 makes a predetermined angle θ with the floor surface G.

  FIG. 57 is a diagram sequentially illustrating how the battery is separated from the cleaner body.

  Specifically, FIG. 57A shows a state before the battery 1130 is separated from the main body 1110, and FIG. 57B shows the battery 1130 separated from the main body 1110. It shows a state.

  In order to separate the battery 1130 from the main body 1110, a user can directly apply a force to the main body 1110 to tilt the main body 1110 forward. Next, the user can separate the battery 1130 in the direction opposite to the insertion direction S.

  When the battery 1130 is separated from the main body 1110, the center of gravity of the main body 1110 moves forward again. As a result, the main body 1110 can be kept tilted forward.

  As described above, in the vacuum cleaner of the present invention, when the battery 1130 is attached to the main body 1110, the main body 1110 rotates backward, and the bottom surface of the main body 1110 can be separated from the floor surface. . That is, the main body 1110 can be supported at two points by the moving wheel 1120 during traveling. In this case, the cleaner main body 1000 can easily get over obstacles, and the running friction acting on the moving wheel 1120 is reduced. Therefore, the user's labor for moving the cleaner main body 1000 can be reduced. .

  When the battery 1130 is separated from the main body part 1110, the center of gravity of the main body part 1110 moves forward and the main body part 1110 rotates forward. Therefore, the battery 1130 is provided on the lower rear side of the main body part 1110. The battery coupling portion 1107 is raised. Accordingly, the user can easily couple the battery 1130 to the battery coupling unit 1107.

  A vacuum cleaner according to an embodiment of the present invention includes: a cleaner body; a moving wheel provided in the cleaner body and rotatably supported by the cleaner body; and provided in the cleaner body and rotating the moving wheel. A wheel motor assembly that includes: a suction hose that connects a suction portion that sucks dust and the vacuum cleaner main body, and the suction hose that is connected to the vacuum cleaner main body at a position separated from a rotation center of the moving wheel; A sensing unit provided inside the cleaner body for sensing a gradient of the cleaner body; and when the gradient of the cleaner body sensed by the sensing unit deviates from a set angle, the wheel motor assembly is A center of gravity of the cleaner body is located in a direction opposite to a connection position of the suction hose with reference to a rotation center of the moving wheel.

  The vacuum cleaner body includes a base that forms the bottom of the vacuum cleaner body, and the base is positioned forward of the rotation center of the moving wheel, and is formed so as to be inclined away from the ground toward the front. Part may be included.

  A front wheel that selectively contacts the ground by rotation of the cleaner body may be attached to the front half.

  The base may include a rear half portion that is positioned forward of the rotation center of the moving wheel and is inclined so as to move away from the ground as it goes forward.

  A rear wheel unit that is selectively in contact with the ground by rotation of the cleaner body may be attached to the latter half.

  The rear wheel unit has a leg rotatably attached to the base; a rear wheel rotatably attached to an extended end of the leg; and a slope or curvature on one side of the rear wheel And an extended end portion may be in contact with the bottom surface of the base and elastically deformed by the rotation of the leg.

  The vacuum cleaner body may be provided with a battery unit for supplying power for driving the vacuum cleaner, and the battery unit may be arranged behind the rotation center of the moving wheel.

  The vacuum cleaner main body may be provided with a main motor for providing a suction force, and the main motor may be disposed behind the rotation center of the moving wheel.

  The sensing unit may include a gyro sensor.

  An obstacle sensing member provided on the front surface of the cleaner body and sensing an obstacle ahead may be included.

  The obstacle sensing member may include a laser sensor.

  A plurality of the obstacle sensing members may be arranged on the same extension line so as to see different directions.

  The vacuum cleaner main body is provided with a main body portion in which a dust collection box in which sucked dust is stored after being separated from air is provided, and the main body portion can be opened and closed, and selectively covers an upper surface of the dust collection box. And the obstacle sensing member may be provided on a rounded front surface of the cover member.

  A pair of the moving wheels may be provided on both sides of the main body, and the wheel motor assembly may be coupled to the pair of moving wheels to drive the moving wheels independently.

  The PCB may drive the wheel motor assembly on either side of the wheel motor assemblies on both sides when the obstacle sensing device senses an obstacle.

  The PCB may have different rotation speeds of the wheel motor assemblies on both sides when the obstacle sensing device senses an obstacle.

  The PCB may rotate the wheel motor assemblies on both sides in opposite directions when the obstacle sensing device senses an obstacle.

  A base frame that divides the internal space of the main body in the front-rear direction may be mounted inside the main body, and a dust collection box that collects dust may be mounted in front of the base frame.

  The base frame forms a space in which a lower frame to which a battery unit for supplying power for driving a vacuum cleaner is mounted and a main motor that is mounted on an upper end of the lower frame and that provides suction force is accommodated. And an upper frame.

  The upper frame is provided with a pair of first sidewalls, the main motor is disposed between the pair of first sidewalls, and is arranged so that air is sucked into and discharged from the main motor in the front-rear direction. May be.

  An auxiliary motor for assisting dust suction may be provided in the suction portion, and an auxiliary PCB for driving the auxiliary motor may be provided on an outer surface of the first sidewall.

  The main motor may be disposed so as to be biased toward one of the pair of first sidewalls, and a plate hole for discharging air may be formed on a bottom surface of the side upper frame. .

  A barrier hole through which air flowing in from the plate hole passes is formed on the front surface of the lower frame, the PCB is mounted on the front surface of the barrier hole, and a noise filter for removing noise of the power supply on the rear surface May be provided.

  A rear opening that communicates with the space of the lower frame may be formed on a rear surface of the cleaner body, and a rear cover that opens and closes the rear opening may be provided on the cleaner body.

  The lower frame includes a pair of second sidewalls that are spaced apart so as to provide a space in which the battery unit is mounted, and that guides insertion / extraction of the battery unit. A battery restraint groove restrained by the second sidewall may be formed.

  Of the pair of second sidewalls, one side sidewall is formed with a battery restraint portion that protrudes so as to be inserted into the battery restraint groove, and the second sidewall on the other side faces the battery. A battery restraint member that is separately molded so as to be inserted into the restraint groove may be mounted.

  A dust collection box that sits on the main body of the vacuum cleaner and collects dust that is sucked in; the dust collection box is formed in a cylindrical shape; and a transparent case that separates and stores dust in the suction air; An upper cover that forms an upper surface and has a suction port and a discharge port; and a lower cover that opens and closes the opened lower surface of the dust collection box.

  The lower cover is provided at a position corresponding to the lower cover shaft and a lower cover shaft that is rotatably coupled to the lower end of the transparent case, and is locked and restrained by a case engaging portion at the lower end of the transparent case. And a lower hook that keeps the lower cover closed.

  A lower rocker mounting portion disposed above and below the transparent case; a lower rocker mounted on the lower rocker mounting portion so as to be movable up and down, and pressing the lower hook when moving downward to release the coupling with the case engaging portion; , May be included.

  The upper surface of the hook and the lower end of the lower rocker in contact with the upper surface of the hook may be formed to be inclined.

  An inner case formed in a cylindrical shape and provided inside the dust collection box, the inner case includes a first dust collection space for collecting dust between the inner case and the dust collection box, You may form the 2nd dust collection space which collects garbage inside an inner case.

  A compression motor assembly provided on one side of the cleaner body to which the dust collection box is mounted; a transmission gear provided on the lower cover and connected to the compression motor assembly when the dust collection box is mounted; and the inner case A dust compression unit that is coupled to the transmission gear and rotates to compress dust in the first dust collection space.

  The transmission gear is provided on a lower surface of the lower cover, coupled to a first transmission gear coupled to the compression motor assembly, and a rotation shaft of the first transmission gear, and provided on an upper surface of the lower cover. And a second transmission gear coupled to the dust compression unit, and the lower cover may be provided with a bearing through which the rotation shaft of the first transmission gear is coupled.

  A gasket plate that sits on the upper surface of the second transmission gear, an internal gasket that is fixedly attached to the gasket plate and seals the opened lower surface of the inner cover, and is tightened to the second transmission gear through the gasket plate In addition, a shaft coupling member may be provided that allows the gasket plate to be independently rotatably mounted.

  The inner gasket is formed in a disc shape, and is provided on the inner side surface of the inner case, the first hermetic portion being in contact with the opened lower end of the inner case, and the first airtight portion being spaced apart from the first airtight portion. And a second hermetic portion in contact therewith.

  The upper cover is detachably attached to the opened upper surface of the transparent case, and an upper protrusion and an upper groove that are protruded and depressed so as to be coupled to each other are formed on the inner upper end of the transparent cover and the upper cover, An upper rocker that restrains one end of the upper cover may be provided at an upper end of the transparent case facing the upper groove.

  An upper rocker mounting portion is formed on an outer surface of the transparent case, and the upper rocker is rotatably mounted on the upper rocker mounting portion, but is extended higher than the upper end of the transparent case, and is attached to the upper cover. It may be selectively locked and restrained.

  The vacuum cleaner main body is detachably mounted with a dust collection box for separating and storing dust in the sucked air, and is rotatably mounted on the main body section so that an upper portion of the dust collection box is selectively And a cover member for shielding.

  The cover member may be provided with a connector that is connected to the suction device and communicates with the suction port of the dust collection box in a state where the cover member is closed.

  The cover member may be provided with a locking assembly that selectively protrudes on both sides by a user operation and is restrained by the main body.

  The locking assembly is a pressing member that is attached to an outer surface of a grip portion formed on the cover member so that a user can hold it; a transmission that moves up and down to transmit a pressing operation of the pressing member; A pair of main links that are in contact with the transmission member and are rotated by the transmission member; and are connected to the main link to reciprocate linearly, and an end portion enters and exits the cover member and engages with the main body portion. A sub-link to be constrained.

  The main link is a penetrating portion that is rotatably coupled to both sides of the transmission member; an inclined surface that extends from the penetrating portion toward the transmission member and is in contact with an inclined lower end of the transmission member is formed. A first extension; and a second extension extending in a direction perpendicular to the first extension and the sub-link being axially coupled.

  A link guide that accommodates the sublink and guides the movement of the sublink is formed in the cover member, and an end portion of the sublink enters and exits on a side surface of the cover member corresponding to the link guide. The doorway may be opened.

  A link assembly for connecting the cover member and the main body portion may be provided between the cover member and the main body portion so that the cover member can be kept open.

  A cover member coupling portion extending rotatably with the main body portion is formed at an end portion of the cover member, and one end of the link assembly is rotatably mounted on the cover member coupling portion, and the other end is You may mount | wear with a main-body part so that sliding is possible.

  The link assembly has a rotating link whose one end is rotatably mounted on the cover member; is rotatably mounted on the other end of the rotating link, and is accommodated on one side of the main body portion so as to be linear when the cover member is opened and closed. A slider that reciprocates; and an elastic member that is provided between the cover member and the slider and elastically supports the slider.

  The body portion may be formed with a link assembly housing portion that is opened in a rotation axis direction of the cover member and that can accommodate at least a part of the slider and the rotation link.

  The link assembly accommodating portion may be formed with a slider guide that contacts both side surfaces of the slider and guides the linear reciprocation of the slider.

  A pair of supporting parts spaced apart from each other is formed on the rotating link, and the pair of supporting parts protrudes in a direction facing each other, and is a slider fixing part rotatably coupled to the slider; A supporting protrusion that is engaged with and restrained by an interference protrusion protruding from the link assembly housing part; and a supporting part that is incised between the slider fixing part and the supporting protrusion from an end of the supporting part to provide elasticity of the supporting protrusion A slit;

  The interference protrusion may be formed at a position where it interferes with the supporting protrusion in a state where the cover member is opened by a set angle, and supports the supporting protrusion to restrict the rotation of the cover member.

  The vacuum cleaner body is provided with a holder on which a protrusion on one side of the suction device is locked and restrained to fix the suction device, and the holder may be formed of a metal material and coupled to the vacuum cleaner body. Good.

  According to the embodiment of the present invention, since the usability is improved, the industrial applicability will be high.

Claims (20)

A vacuum cleaner,
The vacuum cleaner body,
A suction hose connected to the vacuum cleaner body and sucking in trash,
A moving wheel attached to the vacuum cleaner body;
A main motor that is provided inside the vacuum cleaner body and generates a suction force for sucking dust;
A base frame provided inside the vacuum cleaner main body and forming a space partitioned from the main motor;
A battery unit provided inside the base frame for supplying power;
A rear opening formed on the rear surface of the vacuum cleaner body and opened for the battery unit to enter and exit;
A rear cover for opening and closing the rear opening;
A vacuum cleaner, comprising: a battery guide that is formed on both side surfaces of the base frame so as to extend toward the rear opening and guides insertion and / or extraction of the battery unit.   The vacuum cleaner according to claim 1, wherein the battery guides are formed to protrude in directions facing each other, and battery grooves into which the battery guides are inserted are formed on both side surfaces of the battery unit. .   The vacuum cleaner according to claim 1, wherein a battery restraining portion that restrains both side surfaces of the battery unit in a state where the battery unit is completely inserted is formed at an end of the battery guide. Machine. The battery restraint portion is
A first elastic part that is elastically deformed by cutting a side surface of the base frame;
The vacuum cleaner according to claim 3, further comprising a first restraining protrusion that protrudes from an end portion of the first elastic portion and is inserted into a battery restraining groove on both side surfaces of the battery unit. A side hole is formed on one side of the base frame facing the battery restraint part,
The vacuum cleaner according to claim 4, wherein a battery restraining member that is latched and restrained in the battery restraining groove is attached to the side hole.   The vacuum cleaner according to claim 5, wherein the battery restraining member is formed of a material different from that of the battery restraining portion. The battery restraint member is
A restraining member edge formed into a shape corresponding to the side hole and press-fitted into the side hole;
A second elastic part that is cut open and elastically deformed inside the battery restraining member;
The vacuum cleaner according to claim 6, further comprising a second restraining protrusion protruding from the second elastic portion and locked and restrained in the battery restraining groove.   The battery terminal according to claim 1, wherein the base frame is provided with a battery terminal that is electrically connected to the battery unit in a state where the battery unit is completely inserted along the battery guide. Vacuum cleaner.   On the lower surface of the vacuum cleaner main body, a terminal mounting portion is opened in which a power supply terminal for charging the battery unit is exposed in a state where the battery unit is completely inserted along the battery guide. The vacuum cleaner according to claim 8, characterized in that The main motor is disposed above the base frame,
The vacuum cleaner according to claim 1, wherein a frame hole is formed on the upper surface of the base frame to allow air discharged from the main motor to flow into a space in which the battery unit is accommodated.   The vacuum cleaner according to claim 10, wherein the vacuum cleaner body is provided with a filter unit that purifies air passing through the frame hole.   The vacuum cleaner according to claim 11, wherein a filter guide to which the filter unit is mounted is formed on both side surfaces of the base frame. Extending from the front end to the rear end of both side surfaces of the filter unit and coupled to the filter guide;
The vacuum cleaner of claim 12, wherein a filter groove is formed to allow the filtering unit to be inserted and withdrawn through the rear opening. The battery unit is
A rechargeable secondary battery;
The vacuum cleaner according to claim 11, further comprising a battery case that houses the secondary battery and forms an appearance.   A battery grill is formed on the upper surface of the battery case and the rear surface of the battery case so that air can flow into the inside of the battery case from above to cool the secondary battery and be discharged rearward. The vacuum cleaner according to claim 14, wherein   The vacuum cleaner of claim 15, wherein the rear cover further includes a discharge port for discharging air to a position corresponding to the battery grill on the rear surface of the battery case.   The vacuum cleaner according to claim 15, wherein the battery case is formed toward the rear opening and is provided with a battery handle for inserting and / or pulling out the battery.   The vacuum cleaning according to claim 1, wherein the battery unit has an upper surface and a lower surface formed wider than a peripheral surface, and the upper surface and the lower surface of the battery unit are disposed horizontally with a bottom surface of the cleaner body. Machine.   The vacuum cleaner according to claim 18, wherein the battery unit is disposed at a lower rear side of the main body.   The battery unit is formed such that an upper surface and a lower surface are formed wider than a peripheral surface, and a frame hole is formed in the frame so that air discharged from the main motor is directed toward the upper surface of the battery unit. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is characterized.