WO2021177507A1 - Blower - Google Patents

Abstract

A blower according to an embodiment of the present invention may comprise: a support part including a suction unit through which air is introduced, and a filter which filters the air introduced into the suction unit; a tower part which extends upward from the upper end of the support part and in which the air having passed through the filter rises; and a valley groove which is a space open in the front and rear directions from the central axis of the tower part, wherein the tower part may comprise: opposing surfaces which extend in the front and rear directions to define the valley groove and are formed as surfaces facing each other; and a pair of outlets formed on the opposing surfaces to have symmetry with respect to the valley groove.

Description

air blower

The present invention relates to a blower.

In general, a blower is a mechanical device that drives a fan to generate air flow. For example, the blower may include blades that rotate about a rotation axis. And the blower may generate an air flow by the rotation of the blade.

The blower may be disposed relatively close to the user in an indoor environment such as a home or an office. In this case, the blower is usually referred to as a “fan”. In addition, the air flow generated by the blower may release heat from the room through convection and evaporation. Accordingly, the user in the room can feel cool and comfortable.

On the other hand, the conventional blower is visually provided with a blade attached to the rotating shaft, and is provided with a protective net mechanism such as a cage to prevent a safety accident related to the blade. However, these cages and wings are easily contaminated and inconvenient to maintain. Accordingly, recently, various blowers (or fans) in which the blades of the blower are invisible to the user's eyes have been disclosed.

In addition, the blower may be provided with a filter to purify the polluted air. In this case, the blower may perform air cleaning by discharging the purified air. Here, the air cleaning performance of the blower may be determined by the amount of air discharged (“discharge capacity”).

As related prior art documents, Korean Patent Application Laid-Open No. 10-2011-0100274 (published on September 09, 2011) and Korean Patent Laid-Open No. 10-2019-0015325 (published on: February, 2019) 13) and Republic of Korea Patent Publication No. 10-2019-0025443 (published date: March 11, 2019).

On the other hand, the user may prefer direct wind provided so that the air discharged from the blower (hereinafter, “discharge air flow”) directly touches the user, and conversely, the air discharged from the blower is subdued and indirectly provided to the user by spreading in the space. Indirect winds may be preferred. That is, the comfort expected from the blower may be different according to the user's tendency.

A conventional blower may control the direction of air (or discharge air flow) discharged from the discharge port by rotating the discharge port or the entire blower to provide the indirect wind. However, in this case, there is a problem in that an airflow that directly touches the user is generated even for a short time, and it is difficult to continuously provide a soft discharge airflow to the user. In addition, since it is necessary to separately provide a separate power for the continuous rotation of the entire blower or the outlet, there is a problem in that power consumption is increased.

In addition, the conventional blower has difficulty in diffusing air into an indoor space or providing purified air toward a specific space.

It is an object of the present invention to provide a blower capable of solving the problems of the conventional blower described above.

Another object of the present invention is to provide a hidden blower in which blades (or blades) of a rotating fan are non-visually provided.

Another object of the present invention is to provide a blower in which air discharged to surfaces facing each other can be easily mixed and flowed forward by using the Coanda effect.

Another object of the present invention is to provide a blower capable of generating a direct wind or an indirect wind by a combination of air discharged from a plurality of outlets.

Another object of the present invention is to provide a blower that forms a discharge air stream whose final direction is determined by mixing air discharged from a plurality of discharge ports.

Another object of the present invention is to create a discharge air flow provided to a user by mixing air discharged in directions facing each other, and the area covered by the discharge air flow can be varied depending on the mixing level of the discharged air, respectively. to provide a blower.

Another object of the present invention is to provide a blower that proposes a structure capable of matching the directionality of the air discharged from the outlets facing each other.

In order to achieve the above object, a blower according to an embodiment of the present invention includes a support unit including an intake unit through which air is introduced and a filter for filtering the air introduced into the suction unit; a tower part extending upward from the upper end of the support part, and in which the air passing through the filter rises; and a valley groove that is a space opened in a front-rear direction from the central axis of the tower part, wherein the tower part extends in the front-rear direction to define the valley groove, and opposite surfaces formed as opposite surfaces; and a pair of outlets formed on the opposite surfaces to form a symmetry with respect to the valley groove.

In addition, the discharge port may extend diagonally toward the valley groove.

In addition, the discharge port, the rear discharge port located in the rear portion of the opposite surface; And it may include a front discharge port located in the front portion of the opposite surface.

In addition, the front discharge port may guide the flow of air discharged from the rear discharge port to be concentrated forward.

In addition, the tower unit may further include a front door for opening and closing the front discharge port.

In addition, when the front door is opened, the air discharged from the rear discharge port is concentrated toward the front of the valley groove, and when the front door is closed, the air discharged from the rear discharge port is diffused from the front of the valley groove to both sides can do it

In addition, the front door may be opened and closed to adjust the area of the air flow formed by the air discharged from the rear discharge port.

In addition, the front door may adjust the degree of opening of the front discharge port to adjust the mixing level of the air discharged from the rear discharge port and the air discharged from the front discharge port.

Also, the rear discharge port may include a pair of first rear discharge ports and second rear discharge ports formed to be symmetrical with respect to the valley groove.

In addition, the first rear discharge port and the second rear discharge port may guide air toward the front of the valley groove.

In addition, the front discharge port may include a pair of first front discharge port and the second front discharge port formed to be symmetrical with respect to the valley groove.

In addition, the first front discharge port and the second front discharge port may be mixed with the air flowing in the front of the valley groove.

Also, the front discharge port and the rear discharge port may have different inclination angles extending toward the valley groove.

Also, the rear discharge port may have a greater inclination angle than the front discharge port.

In addition, the tower unit may further include an outer guide and an inner guide forming a discharge passage for guiding the air introduced from the support unit inside the tower unit.

Also, the inner guide may extend along an inner surface of the opposite surface.

In addition, the out guide, a guide oblique portion defining one side of the inlet of the front discharge port; and a guide curved part that defines one side of the inlet of the rear discharge port and is bent to have a predetermined curvature.

In addition, the inner guide may include: a forward oblique portion disposed to be spaced apart from the guide oblique portion to define the other side of the inlet of the front discharge port; a rear curved portion spaced apart from the guide curved portion to define the other side of the inlet of the rear discharge port; And it is formed in the rear curved portion, it may include a Coanda surface for guiding the air introduced into the rear discharge port to flow in the front of the valley groove.

In another aspect, the blower according to an embodiment of the present invention includes: a support including a suction unit through which air is introduced and a filter for filtering the air introduced into the suction unit; and a tower portion extending upward from the upper end of the support portion and into which the air passing through the filter is branched and introduced, wherein the tower portion includes: a facing surface forming a valley groove which is a space open in the front and rear directions along a central axis; and a slit formed on the opposite surface to discharge the branched air to the valley groove.

In addition, the slit may be located at the outlet of the outlet for guiding the flow direction to direct the air inside the tower portion toward the valley groove.

In addition, the discharge port and the slit may extend to have the same inclination toward the valley groove.

In addition, the slit may include: a front slit forming an outlet of a front discharge port for guiding the internal air of the tower part to be discharged from the front of the central axis; and a rear slit forming an outlet of a rear discharge port for guiding the internal air of the tower unit to be discharged from the rear of the central shaft.

Also, an inclination angle of the front discharge port and the front slit extending toward the valley groove may be smaller than an inclination angle of the rear discharge port and the rear slit extending toward the valley groove.

In addition, the air discharged from the slit may be discharged into the valley groove in a direction facing each other to form a mixed air flow, and the mixed air flow may flow forward.

In addition, the slit may include a pair of front slits located in the front portion of the opposing surface; and a pair of rear slits positioned behind the pair of front slits.

In addition, the air discharged from the pair of rear slits may flow forward by forming a mixed air flow in the valley groove.

In addition, the air discharged from the pair of front slits may set the directionality of the mixed air flow.

In addition, the air discharged from the pair of front slits may be mixed in both directions of the mixed air flow.

In addition, the tower unit may include a first tower and a second tower that are symmetrical with respect to the valley groove.

In addition, the opposing surface may include a first opposing face formed in the first tower and a second opposing face formed in the second tower so as to face each other with the belly groove therebetween.

In addition, the first opposing surface and the second opposing surface may be formed to be curved to be closest to the central axis.

In addition, the support portion may be extended to have a smaller diameter toward the upper portion.

In addition, the tower portion may extend from the upper end of the support portion so that the diameter decreases continuously toward the upper portion.

In addition, the suction unit may include a plurality of holes perforated in the circumferential direction and the vertical direction.

In another aspect, the blower according to an embodiment of the present invention includes a support unit including a suction unit through which air is sucked, and a filter for purifying the air sucked into the suction unit; and a tower part supported by the support part and discharging the air introduced from the support part, wherein the tower part includes: a tower case forming an exterior of the tower part; Opposing surfaces formed in the tower case to form an open space in the front and rear directions along the central axis; and a pair of outlets located on the opposite surfaces and for discharging air into the open space, wherein the pair of outlets includes: a front outlet positioned in a front portion of the opposing surface; And located in the rear portion of the opposite surface, it may include a rear discharge port defined by the Coanda surface. And the air discharged from the rear discharge port may flow forward by the Coanda surface.

According to the present invention, the rear discharge air (FR) discharged in the opposite direction from the rear of the blower flows forward along the opposite surfaces by the Coanda effect, and the air mixed with each other (hereinafter, “mixed air”) can form. Accordingly, the configuration of the blade, the vane, and the like may not be visually exposed, and a comfortable discharge air flow may be provided to the user.

According to the present invention, the front discharge air FF discharged from the front of the blower in the opposite direction to each other is added and/or mixed with the mixed air, so that the direction and intensity of the discharge air flow finally provided to the user can be adjusted. Accordingly, the discharge air flow may cover a wider area and may be provided in various directions. In addition, since the direction and intensity of the discharge air flow are determined according to the mixing level of the air forming the final discharge air flow, noise can be relatively reduced.

According to the present invention, a pair of outlets for discharging air in opposite directions are respectively located at the front and rear portions of the blower, and each of the outlets positioned at the front and rear of the blower guides the air forward. For this purpose, a diagonal flow path may be formed. Therefore, the air discharged from each discharge port can be mixed to face forward.

According to the present invention, the air (or the rear discharge air) discharged from the discharge port located in the rear portion of the blower may flow forward along the valley groove formed by the two opposing surfaces. At this time, since the two opposing surfaces are formed to be curved to be closest to the central axis of the blower, air can be amplified by using the Venturi effect and flow forward more rapidly.

According to the present invention, the mixing level of the air forming the discharge air stream can be adjusted according to the degree of opening and closing of the discharge port located in the front part of the blower. In addition, the air (or the front discharge air) discharged from the discharge port located in the front part of the blower may concentrate the rear discharge air to the center. Therefore, it is possible to generate a direct wind or an indirect wind according to the user's tendency.

According to the present invention, since the flow direction of the air discharged from the opposite surface to the opposite direction is discharged to have the same direction due to the Coanda effect, deflection and flow loss can be minimized. And it is possible to facilitate mixing between the rear discharge air.

According to the present invention, since two air flowing along the surface are mixed by the Coanda effect and can be easily guided forward, there is an advantage that a separate vane for guiding the direction of the discharged air is unnecessary. Accordingly, since the overall configuration of the blower is minimized, it is economically advantageous, it is possible to provide a blower having a fan less structure to the user, and the blower can have a simpler design.

According to the present invention, since the center of gravity is formed in the lower portion and has a structure that is stably supported on the ground, there is an advantage that can eliminate the risk of overturning.

According to the present invention, since direct wind or indirect wind can be provided without rotation of the entire blower, power consumption can be relatively reduced.

According to the present invention, even when the user is exposed to the wind for a long time, a comfortable airflow can be provided without draft.

1 is a perspective view showing a blower according to an embodiment of the present invention;

2 is a cross-sectional view Ⅰ-I’ of FIG. 1

3 is a sectional view II-II' of FIG. 1;

4 is a view schematically showing an air flow of a blower according to an embodiment of the present invention;

5 is a view schematically showing an air flow for providing indirect wind of a blower according to an embodiment of the present invention;

6 is a view schematically showing an air flow for providing direct air of a blower according to an embodiment of the present invention;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but between each component another component It will be understood that may also be "connected", "coupled" or "connected".

1 is a perspective view showing a blower according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along I-I' of FIG. 1, and FIG. 3 is a cross-sectional view taken along line II-II' of FIG.

1 to 3 , the blower 1 according to an embodiment of the present invention may include a support part 10 and a tower part 100 supported by the support part 10 .

The support unit 10 may form a lower portion of the blower 1 , and the tower unit 100 may form an upper portion of the blower 1 . For example, the tower part 100 may be coupled to the upper portion of the support part 10 .

The blower 1 may suck in ambient air from the support 10 and discharge the purified air from the tower 100 . Accordingly, the tower part 100 may discharge air at a position higher than the support part 10 .

The blower 1 may have a column shape in which the diameter decreases toward the upper portion. For example, the blower 1 may have an approximately conical shape.

And the support part 10 and the tower part 100 may have an integral shape. That is, the tower part 100 may extend upward from the upper end of the support part 10 to continuously decrease in diameter. Accordingly, the support part 10 and the tower part 100 may have a continuous smooth appearance.

The tower part 100 may include a valley groove 120 that is a space opened in the front-rear direction along the central axis O of the blower 1 .

That is, the central axis O of the blower 1 may be located in the valley groove 120 . And the valley groove 120 may be formed as a space connecting the front and rear of the blower (1). For example, the valley groove 120 may be formed by extending an opening having a predetermined width at the front end of the tower unit 100 to the rear end of the tower unit 100 located in the opposite direction.

Meanwhile, the valley groove 120 may be formed by opposing surfaces 111 and 112 and a lower curved surface 125 to be described later. In addition, the opposite surfaces 111 and 112 may be formed as curved surfaces. Accordingly, the width of the valley groove 120 may be different in the front-rear direction.

The bottom of the valley groove 120 may be defined by a lower curved surface 125 . For example, the lower curved surface 125 may have a curved surface that is depressed downward, and may extend in the front-rear direction.

In addition, the valley groove 120 may extend in the vertical direction of the tower part 100 . For example, the valley groove 120 may extend downward from the upper surface of the tower part 100 to vertically bisect the tower part 100 . Accordingly, the tower part 100 may have a symmetrical shape by the valley groove 120 .

The width of the valley groove 120 may be constant in the vertical direction, unlike the front-rear direction. In addition, the vertical length (or the depth of the valley groove) of the valley groove 120 may be greater than the vertical length (or height) of the support part 10 .

The valley groove 120 may guide the air discharged from the slits 131 , 132 , 141 , 142 or the outlets 133 , 134 , 143 and 144 to be described later forward. That is, the valley groove 120 may guide the discharge air flow toward the front of the blower 1 . A detailed description thereof will be provided later.

Meanwhile, the support part 10 may include a case 12 forming an external appearance.

The case 12 of the support 10 may be referred to as a “body case”.

The case 12 may be formed to have an integral or continuous shape with the tower case 110 of the tower part 100 . For example, the case 12 may have a shape of a truncated cone whose diameter decreases toward the top. At this time, the lower end of the tower case 110 is formed to have the same diameter as the upper end of the case 12, and may be extended so that the diameter becomes smaller toward the upper part.

A display groove 15 may be formed on the front surface of the case 12 at a position vertically aligned with the valley groove 120 . The display groove 15 may be understood as a space in which a display providing information to a user is installed. For example, the display is provided with a touch type display, the user may input various operation modes of the blower (1).

In addition, the support part 10 may further include a suction part 13 formed in the case 12 to introduce air.

The suction part 13 may be formed in various shapes. For example, the suction part 13 may be formed by punching a plurality of holes. In addition, the ambient air of the suction unit 13 may be introduced into the interior through the plurality of holes.

As another example, the suction part 13 may also be formed in a grill shape. When the suction part 13 has a grill shape, the surrounding air of the suction part 13 may be introduced into the interior by a space formed by the grill.

In addition, the air introduced into the suction unit 13 may flow to the tower unit 100 while passing through the filter.

The support 10 may further include a base 20 placed on the ground, a filter support 30 disposed on the base 20, and a filter (not shown) coupled to the filter support 30 . .

The base 20 may be provided at the lower end of the case 12 . Also, the base 20 may be spaced apart from the inside of the case 12 .

Air sucked through the suction part 13 may pass through a filter (not shown) provided on the upper side of the base 20 and may flow into the suction passage 45 formed inside the filter.

The filter may filter (or purify) the air sucked through the suction unit 13 . For example, the filter may have a donut or cylindrical shape that is opened along a central axis. Accordingly, the air introduced into the suction unit 13 may pass through the outer circumferential surface of the filter having a cylindrical shape and flow into the suction passage 45 .

The suction flow path 45 may be understood as a path through which the air passing through the filter flows. And the air that has passed through the filter may flow to the fan 210 along the suction passage 45 .

The filter support part 30 may be coupled to the upper surface of the base 20 . That is, the lower surface of the filter support part 30 may be supported by the base 20 .

The filter support part 30 may include a support device 31 and a filter frame 35 that form a mounting space for the filter.

In detail, the support device 31 may form a lower portion of the filter support part 30 . In addition, the filter frame 35 may form an upper portion of the filter support unit 30 .

The support device 31 may support the lower surface of the filter. For example, the support device 31 may have a ring shape. Also, the inner space of the support device 31 may form a lower portion of the suction passage 45 .

The filter may be seated on the support device 31 . For example, the upper surface of the support device 31 may form a surface on which the filter is seated.

Also, the support device 31 may fix the filter. In detail, on the inner circumferential surface of the support device 31, a lever device for guiding detachment or fixation of the filter may be located.

The filter frame 35 may be positioned upwardly spaced apart from the support device 31 . For example, the filter frame 35 has a substantially ring shape.

The inner space of the filter frame 35 may form an upper portion of the suction passage 45 . And an upper portion of the filter frame 35 may support the fan housing 200 .

Meanwhile, the filter support unit 30 may further include a plurality of filter posts (not shown) extending upwardly from the support device 31 toward the filter frame 35 . By the plurality of filter pillars, the support device 31 and the filter frame 35 may be spaced apart from each other.

The plurality of filter pillars may be arranged in a circumferential direction and connected to the support device 31 and edges of the filter frame 35 . The support device 31 , the filter frame 35 and the filter column may form a mounting space for the filter.

The support part 10 is a fan housing 200 positioned above the filter, a fan 210 that provides flow pressure so that air is sucked into the suction part 13, and a fan 210 positioned above the fan 210. It may further include a diffuser 300 and a distribution duct 400 for guiding the air passing through the diffuser 300 to the tower unit 100 .

The fan housing 200 may be installed on the outlet side of the filter.

The fan housing 200 may accommodate the fan 210 . In addition, the fan housing 200 may be supported by the filter frame 35 .

An inlet grill 205 for guiding the inflow of air into the fan housing 200 may be formed at a lower portion of the fan housing 200 .

That is, the inlet grill 205 may communicate with the suction passage 45 . Since the inlet grill 205 is provided as a grill, it is possible to prevent a user from inserting a finger or the like into the fan housing 200 when the filter is removed.

The fan 210 may provide a flow pressure of air through rotation. In addition, the fan 210 may be placed on the upper side of the inlet grill 205 .

The fan 210 may include a flow fan that introduces air in an axial direction and discharges air in an oblique direction.

In detail, the fan 210 includes a hub 211 to which the shaft of a motor (not shown) is coupled, a shroud 213 spaced apart from the hub 211 , and the hub 211 and the shroud 213 . It may include a plurality of blades 215 disposed between the.

The motor is installed in the motor accommodating part 310 of the diffuser 300 , and the shaft of the motor extends downward to be coupled to the hub 211 .

The hub 211 may be formed in a shape corresponding to the motor accommodating part 310 . For example, the hub 211 may have a bowl shape in which the diameter becomes narrower toward the bottom.

In addition, the hub 211 may form a shaft coupling part (not shown) to which the shaft of the motor is coupled. The shaft coupling portion may be formed on an inner circumferential surface of the hub 211 .

The shroud 213 may form a central opening through which the air passing through the inlet grill 205 is sucked. In addition, the shroud 213 may form an outer opening through which the air introduced through the central opening is discharged in an oblique direction by the guide of the blade 215 . The outer opening may be located above the central opening.

One surface of the blade 215 may be coupled to the outer circumferential surface of the hub 211 , and the other surface may be coupled to the inner circumferential surface of the shroud 213 .

The plurality of blades 215 may be disposed to be spaced apart from each other in a circumferential direction of the hub 211 .

The air passing through the filter may be introduced into the fan housing 200 through the inlet grill 205 while flowing upward along the suction passage 45 .

In addition, the air introduced into the fan housing 200 may be introduced into a central opening (or axial direction) formed by the shroud 213 and discharged in an oblique direction through the blade 215 . In this case, the blade 215 may extend obliquely in an axial direction with respect to the axial direction so that air may flow in an oblique direction through the outer opening.

The diffuser 300 may be positioned above the fan 210 . In addition, the diffuser 300 may guide the flow of air passing through the fan 210 to the inner space of the distribution duct 400 .

The diffuser 300 may be connected to an upper end of the fan housing 200 . For example, the diffuser 300 is formed to have the same outer diameter as the fan housing 200 , and may be stacked on the fan housing 200 . In addition, the diffuser 300 may guide the air passing through the fan 210 to rise to the tower unit 100 through the distribution duct 400 .

The diffuser 300 may include an outer wall forming an outer periphery and a motor accommodating part 310 positioned inside the outer wall and extending in a circumferential direction. In addition, the diffuser 300 may further include a plurality of guide vanes 330 provided in a circumferential direction between the motor accommodating part 310 and the outer wall.

The diameter of the outer wall is larger than the diameter of the motor accommodating part 310 . That is, the diameter of the outer wall may be understood as the outer diameter of the diffuser 300 . In addition, the diameter of the outer peripheral surface of the motor accommodating part 310 may be understood as the inner diameter of the diffuser (300).

The outer wall may be positioned radially spaced apart from the outer peripheral surface of the motor accommodating part 310 . Between the inner peripheral surface of the outer wall and the outer peripheral surface of the motor accommodating part 310, a guide passage 335 through which the air passing through the fan 210 flows may be formed. In addition, the guide vanes 330 for guiding air upward may be disposed in the guide flow path 335 .

The motor accommodating part 310 may form an internal space. In addition, a motor (not shown) connected to the hub 211 may be installed in the inner space of the motor accommodating part 310 .

The lower part 315 of the motor accommodating part 310 may have a bowl shape in which the diameter decreases toward the bottom.

The shape of the lower part 315 of the motor accommodating part 310 may correspond to the shape of the hub 211 . In addition, the motor accommodating part 310 may be located inside the hub 211 .

The shaft of the motor may extend downward from the motor and may be coupled to the shaft coupling part of the hub 211 through a motor coupling hole formed in the lower center of the motor receiving part 310 .

A plurality of sound absorbing holes 316 in which perforations are formed may be formed in the lower portion 315 of the motor accommodating part 310 . And a sound absorbing material (not shown) may be attached to the inside of the motor accommodating part 310 to correspond to the plurality of sound absorbing holes 316 .

The plurality of sound-absorbing holes 316 may be formed to have a predetermined interval along the outer peripheral surface 315 of the lower part around the motor coupling hole. As an example, the interval between the plurality of sound-absorbing holes 316 may be set to 8 to 14 (mm).

Between the outer peripheral surface of the lower part 315 of the motor accommodating part and the hub 211, it may be spaced apart by a predetermined distance to form a space therebetween. Here, the space formed between the lower part 315 and the hub 211 is called an “air gap”.

A portion of the air that has passed through the fan 210 may be introduced into the air gap. The air introduced into the air gap may cause friction and collision in the air gap by the pressure generated by the rotation of the fan 210 . As a result, air entering the air gap may generate flow noise.

Therefore, according to the plurality of sound-absorbing holes 316 and the sound-absorbing material, it is possible to minimize the flow noise generated by the air gap.

The plurality of sound-absorbing holes 316 may have a preset diameter. For example, the diameter of the sound-absorbing hole 316 may be set to 2 (mm).

The guide vane 330 may extend from an outer circumferential surface of the motor accommodating part 310 to an inner circumferential surface of the outer wall. A plurality of the guide vanes 330 may be disposed to be spaced apart along the circumferential direction.

The guide vane 330 may guide the air introduced into the guide passage 335 of the diffuser 300 through the fan 210 upward.

The air introduced by the suction unit 13 and passed through the filter flows upward by the flow pressure generated through the rotation of the fan 210 . After flowing into the fan housing 200 , the air flowing upward may ascend in an oblique direction while passing through the fan 210 .

The air rising in the diagonal direction is introduced into the guide passage 335 of the diffuser 300 , and the plurality of guide vanes 330 disposed in the guide passage 335 is the air introduced into the guide passage 335 . can be guided to flow upward.

Meanwhile, most of the air rising in an oblique direction through the blade 215 may have a fluidity component in a circumferential direction and a fluidity component in a radial direction. Accordingly, the air passing through the blade 215 may flow upward while forming a rotating vortex airflow.

The plurality of guide vanes 330 may offset the fluid component forming the vortex airflow to guide the air to rise stably.

That is, the velocity component of the air passing through the guide vane 330 may decrease in radial and circumferential directions. On the other hand, the relative axial component, that is, the upward velocity component may be large.

The distribution duct 400 may be positioned above the diffuser 300 . In addition, the distribution duct 400 may guide the air rising through the diffuser 300 .

In detail, the distribution duct 400 may be connected to an upper end of the diffuser 300 . For example, the lower outer diameter of the distribution duct 400 may be the same as the upper outer diameter of the diffuser 300 . That is, the distribution duct 400 may be coupled to the outer wall of the diffuser 300 . And the distribution duct 400 may extend from the outer wall to the lower end of the tower part 100 .

The distribution duct 400 may be located inside the case 12 and/or the tower case 110 .

In addition, the distribution duct 400 may have an inner peripheral surface where a smooth air flow is formed between the tower part 100 and the diffuser 300 .

A distribution flow path 410 for branching the air passing through the diffuser 300 into the inner space of the tower unit 100 may be formed in the distribution duct 400 .

The distribution passage 410 may be formed to communicate with the first discharge passage 101a and the second discharge passage 102a of the tower part 100 . That is, the air introduced into the distribution passage 410 may branch and flow into the first discharge passage 101a and the second discharge passage 102a.

Hereinafter, the first discharge passage 101a and the second discharge passage 102a may be simply referred to as “ discharge passages 101a and 102a”.

Meanwhile, the tower unit 100 includes a first tower 101 positioned on one side with respect to the valley groove 120 and a second tower 102 positioned on the other side to face the first tower 101 . ) can be distinguished.

The first discharge passage 101a may be defined as an internal space of the first tower 101 . In addition, the air introduced into the first discharge passage 101a may be discharged to the outside through a first front slit 131 and/or a first rear slit 141 to be described later.

The second discharge passage 102a may be defined as an internal space of the second tower 102 . The air introduced into the second discharge passage 102a may be discharged to the outside through a second front slit 132 and/or a second rear slit 142 to be described later.

That is, the distribution duct 400 may guide the air passing through the diffuser 300 to the first tower 101 and the second tower 102 of the tower unit 100 .

Meanwhile, the support unit 10 may further include a rotation module (not shown) capable of rotating the tower unit 100 .

The rotation module (not shown) may be provided so that the tower part 100 can rotate 360° while supporting the support part 10 . For example, the rotation module may be positioned below the lower curved surface 125 and installed so that the lower end of the tower part 100 rotates along the upper end of the support part 10 .

And the rotation module may include a rotation motor (not shown), a plurality of rollers receiving power by the rotation motor, and a roller groove (not shown) for guiding the plurality of rollers to roll along a predetermined path. have. Therefore, when the plurality of rollers roll along the roller groove, the tower part 100 may rotate in a clockwise or counterclockwise direction.

Meanwhile, the tower part 100 may further include a tower case 110 forming an exterior.

As described above, the tower case 110 may extend upwardly from the case 12 of the support part 10 so that the overall diameter of the cross section becomes smaller. And the tower case 110 may be provided such that an open space is formed in the front and rear directions along the central axis (O). Here, the open space may be understood as the valley groove 120 .

That is, the valley groove 120 may be located in the center of the tower case 110 . Accordingly, the tower part 100 may have a symmetrical structure with respect to the valley groove 120 .

In other words, the tower part 100 may be formed in a symmetrical structure with the central axis O as the symmetry axis. Of course, the support portion 10 may also be formed in a symmetrical structure with the central axis O as the axis of symmetry.

For convenience of description, an imaginary vertical line L passing through the central axis O in the front and rear open direction of the tower part 100 is defined. Hereinafter, the virtual vertical line L may be referred to as a “reference line”. The reference line L may cross the valley groove 120 in the front-rear direction. Referring to FIG. 3 , the blower 1 may have a symmetrical structure with respect to the reference line L.

Accordingly, since the blower 1 according to the embodiment of the present invention is formed to be balanced with respect to the central axis O or the reference line L, it is possible to prevent a fall risk.

The tower case 110 may include outer surfaces 115 and 116 that form an exterior in the radial direction of the blower 1 , opposite surfaces 111 and 112 and lower curved surfaces 125 that form the valley groove 120 . have.

The outer surfaces 115 and 116 may be formed along the circumferential direction of the tower part 100 . Accordingly, the outer surfaces 115 and 116 may form the outer surface of the tower case 110 . For example, the outer surfaces 115 and 116 may form a circumferential surface of the tower case 110 extending upwardly from the case 12 of the support part 10 to have a smaller diameter. The outer surfaces 115 and 116 may extend along a semicircular arc with respect to the valley groove 120 .

The outer surfaces 115 and 116 may include a first outer surface 115 positioned in one direction of the valley groove 120 and a second outer surface 116 positioned in the other direction of the valley groove 120 . .

The opposite surfaces 111 and 112 and the lower curved surface 125 may extend from the outer surfaces 115 and 116 .

In addition, the opposite surfaces 111 and 112 and the lower curved surface 125 may be understood as surfaces located in the center of the tower part 100 . In addition, as described above, a valley groove 120 may be formed in the center of the tower part 100 .

That is, the opposite surfaces 111 and 112 may define both side surfaces of the valley groove 120 , and the lower curved surface 125 may define a lower surface of the valley groove 120 .

The opposite surfaces 111 and 112 may extend in an open front-back direction through which the reference line L passes. Accordingly, the opposing surfaces 111 and 112 may be formed to face each other in a space (“valley groove”) formed in the center of the tower unit 100 .

That is, the opposing surfaces 111 and 112 may include a first opposing face 111 and a second opposing face 112 facing each other in the valley groove 120 .

The first opposing surface 111 may extend from the first outer surface 115 , and the second opposing surface 112 may extend from the second outer surface 116 . In detail, the first opposing surface 111 extends to connect the front end and the rear end of the first outer surface 115 , and the second opposing surface 112 connects the front end and the rear end of the second outer surface 116 . can be extended to

The opposite surfaces 111 and 112 may be formed as curved surfaces protruding toward the central axis O. In addition, the first opposing surface 111 and the second opposing surface 112 may be spaced apart from each other to have a predetermined distance. For example, the predetermined distance (or width) may be closest to the central axis O, and may be furthest from the front and rear ends of the first outer surface 115 and the second outer surface 116 .

According to this, the air discharged from the rear discharge ports 143 and 144 and flowing forward of the valley groove 120 along the opposite surfaces 111 and 112 flows faster due to the Venturi effect in the vicinity of the central axis O. And it is possible to more amplify the flow of air in the forward direction of the blower (1).

The lower curved surface 125 may extend to connect the lower end of the first opposing surface 111 and the lower end of the second opposing surface 112 . In addition, the lower curved surface 125 may be formed as a curved surface concavely recessed toward the reference line (L).

The tower unit 100 may include front discharge ports 133 and 134 and rear discharge ports 143 and 144 for discharging air introduced through the guide passage 335 of the diffuser 300 .

For convenience of description, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may be collectively referred to as “discharge ports”.

The front discharge ports 133 and 134 may be located in a front portion of the tower unit 100 . For example, the front discharge ports 133 and 134 may be located in front of the opposite surfaces 111 and 112 . Accordingly, the front discharge ports 133 and 134 may discharge air to the front portion of the valley groove 120 .

In more detail, the front discharge ports 133 and 134 include a first front discharge port 133 located on the first facing surface 111 and a second front discharge port 134 located on the second facing surface 112 . can do.

In addition, the first front discharge port 133 and the second front discharge port 134 may be positioned to face each other. That is, the first front discharge port 133 and the second front discharge port 134 may be formed as a pair symmetrical with respect to the reference line (L).

The rear discharge ports 143 and 144 may be located at the rear of the tower unit 100 . For example, the rear discharge ports 143 and 144 may be located at rear portions of the opposite surfaces 111 and 112 . Accordingly, the rear discharge ports 143 and 144 may discharge air to the rear portion of the valley groove 120 .

In more detail, the rear discharge ports 143 and 144 may include a first rear discharge port 143 located on the first opposed surface 111 and a second rear discharge port 144 located on the second opposed surface 112 . can

In addition, the first rear discharge port 143 and the second rear discharge port 144 may be positioned to face each other. That is, the first rear discharge port 143 and the second rear discharge port 144 may be formed as a pair symmetrical with respect to the reference line (L).

The first rear discharge port 143 may be located behind the first front discharge port 133 . For example, the first rear discharge port 143 may be located at the rear of the central axis (O). Similarly, the second rear discharge port 144 may be located at a rear of the second front discharge port 134 . For example, the second rear discharge port 144 may be located behind the central axis (O).

In addition, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may be formed to be inclined toward the valley groove 120 .

In detail, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may extend a space for guiding air to be inclined forward toward the valley groove 120 . Accordingly, the air discharged from the rear discharge ports 143 and 144 may flow forward along the valley groove 120 due to a Coanda effect, which will be described later.

That is, the first front discharge port 133 and the first rear discharge port 143 extend a guide space for discharging the air of the first discharge passage 101a to the valley groove 120 in a diagonal direction. can do.

Similarly, the first front discharge port 133 and the first rear discharge port 143 and the second front discharge port 134 and the second rear discharge port 144, which are formed symmetrically with respect to the reference line L, are , a guide space for discharging the air of the second discharge passage 102a to the valley groove 120 may extend in an oblique direction.

In other words, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may be formed to have a predetermined inclination angle toward the reference line L ( FIG. 3 ).

In detail, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may extend a space through which air flows to have a predetermined inclination angle with the reference line L.

Also, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may be formed to have different inclination angles from the reference line L.

For example, the acute angle formed between the imaginary straight line drawn along the extension direction of the front discharge ports 133 and 134 and the reference line L is the imaginary straight line drawn along the extension direction of the rear discharge ports 143 and 144 and the reference line ( It may be smaller than the acute angle formed by L).

Accordingly, the air discharged from the front discharge ports 133 and 134 may discharge the air deflected more forward than the rear discharge ports 143 and 144 .

According to this, the blower 1 is configured as a front area of the blower 1 according to whether the air discharged from the rear discharge ports 143 and 144 is mixed with the air discharged from the front discharge ports 133 and 134. Wind” or “indirect wind” may be provided.

In addition, the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 may be formed as slits extending in a straight line along the vertical direction of the blower 1 from the opposite surfaces 111 and 112 .

In detail, the tower part 100 may further include front slits 131 and 132 defining the outlets of the front discharge ports 133 and 134 and rear slits 141 and 142 defining the outlets of the rear discharge ports 143 and 144 .

And through the front slits 131 and 132 and the rear slits 141 and 142 extending long in the vertical direction of the opposite surfaces 111 and 112 formed to face each other, the air rising inside the tower part 100 is the valley groove 120 . ) can be discharged toward the

For convenience of description, the front slits 131 and 132 and the rear slits 141 and 142 may be collectively referred to as a “slit”.

As will be described later, the front outlets 133 and 134 have their inlets defined by front guides 151 and 161 and inner guides 170 and 180, and the rear outlets 143 and 144 have their inlets formed by the rear guides 155 and 165 and the inner guides 170 and 180. can be defined.

That is, the front outlets 133 and 134 have a space extending to guide the air from the inlet to the outlet, and as described above, the extension direction of the front outlets 133 and 134 may have a predetermined inclination angle with the reference line L.

Similarly, the rear discharge ports 143 and 144 have a space extending to guide the air from the inlet to the outlet, and as described above, the extension direction of the rear discharge ports 143 and 144 is different from the reference line L and the front discharge ports 133 and 134. It may have an inclination angle.

The front slits 131 and 132 may form a portion (outlet) of the front discharge ports 133 and 134 . Accordingly, the openings formed by the front slits 131 and 132 may extend integrally along the extending direction of the front discharge holes 133 and 134 .

Similarly, the rear slits 141 and 142 may form a portion (outlet) of the rear discharge ports 143 and 144 . Accordingly, the openings formed by the rear slits 141 and 142 may extend integrally along the extending direction of the rear discharge holes 143 and 144 .

In other words, the front slits 131 and 132 may be formed to correspond to the front discharge ports 131 and 132 . In addition, the rear slits 141 and 142 may be formed to correspond to the rear discharge ports 143 and 144 .

Accordingly, the front slits 131 and 132 may be positioned as outlets of the front discharge ports 133 and 134 on the front portions of the opposite surfaces 111 and 112 . In addition, the rear slits 141 and 142 may be located at the rear portions of the opposite surfaces 111 and 112 as outlets of the rear discharge ports 143 and 144 .

In addition, the front slits 131 and 132 and the rear slits 141 and 142 may be positioned to be aligned in the front-rear direction toward the valley groove 120 .

Specifically, the front slits 131 and 132 may include a first front slit 131 positioned on the first opposed surface 111 and a second front slit 132 positioned on the second opposed surface 112 . can And the first front slit 131 and the second front slit 132 may form a symmetrical pair with respect to the reference line (L). That is, the first front slit 131 and the second front slit 132 may be positioned to face each other.

In addition, the rear slits 141 and 142 may include a first rear slit 141 positioned on the first opposed surface 111 and a second rear slit 142 positioned on the second opposed surface 112 . have. And the first rear slit 141 and the second rear slit 142 may form a symmetrical pair with respect to the reference line (L). That is, the first rear slit 141 and the second rear slit 142 may be formed to face each other.

In addition, the tower part 100 is disposed inside the tower case 100 and guides the air rising by the guide flow path 335 to flow to the front discharge port 133 or the rear discharge port 143 . It may further include a vane (135, 145).

The vanes 135 and 145 are a front vane 135 for converting the flow of air rising into the first discharge passage 101a to the front discharge port 133 and a rear vane 145 for converting the rear discharge port 143. may include. (refer to FIG. 2)

Similarly, the front vane (not shown) and the rear vane (not shown) for diverting the flow of air ascending to the second discharge passage 102a are the front vane 135 and the rear vane based on the reference line L. (145) and may be provided in a symmetrical pair.

Accordingly, a front vane (not shown) for guiding the air flowing into the second discharge path 102a to the second front discharge port 134 and a rear vane (not shown) for guiding the second rear discharge port 144 to The description is a description of the front vane 135 for guiding the air flowing through the first discharge passage 101a to the first front discharge port 133 and the rear vane 145 for guiding the air to the first rear discharge port 143 to use the

A plurality of the vanes 135 and 145 may be spaced apart from each other in the vertical direction of the front discharge port 133 or the rear discharge port 143 . That is, a plurality of the vanes 135 and 145 may be spaced apart from each other in the height direction of the tower case 110 .

The lower surfaces of the vanes 135 and 145 guide the air flowing into the tower case 110 and rising through the guide passage 335 to the front outlet 133 or the rear outlet 143 positioned in the vertical direction. In order to do this, the lower surface may be formed as a curved surface.

In addition, the vanes 135 and 145 may be formed such that a lower surface having a preset width extends in a direction substantially perpendicular to the vertical direction (or horizontal direction) of the front discharge port 133 or the rear discharge port 143 . . Here, the preset width of the vanes 135 and 145 may be set to be smaller than half the width of the discharge passages 101a and 102a in order to partially maintain the flow of air rising along the discharge passages 101a and 102a. have.

In addition, one end of the vanes 135 and 145 may be provided to abut against the inlet of the front discharge port 133 or the rear discharge port 143 in the horizontal direction.

Accordingly, some of the air rising to the first discharge passage 101a and the second discharge passage 102a changes the flow direction while in turn collides with the lower surfaces of the vanes 135 and 145 spaced apart in the vertical direction. As a result, it may be discharged from the front discharge port 133 or the rear discharge port 143 .

Accordingly, air can be discharged relatively uniformly in the vertical direction from the front discharge ports 133 and 143 and the rear discharge ports 143 and 144 extending long in the vertical direction.

Meanwhile, the vanes 135 and 145 may be rotatably provided. That is, the vanes 135 and 145 may be rotatable up and down with respect to the opening direction of the discharge ports 133 and 143 with the rear end as the center of rotation.

In addition, the tower unit 100 may further include a heater (not shown) for heating the air passing through the first discharge passage 101a and the second discharge passage 102a.

The heater (not shown) may be installed inside the tower case 110 to heat the air rising from the guide flow path 335 to the first discharge flow path 101a and the second discharge flow path 102a. For example, the heater may include a PTC heater.

In addition, the tower part 100 may further include outer guides 150 and 160 and inner guides 170 and 180 that form the first discharge passage 101a and the second discharge passage 102a.

That is, the outer guides 150 and 160 and the inner guides 170 and 180 may be located inside the tower case 100 to form the discharge passages 101a and 102a.

In other words, the out guides 150 and 160 and the inner guides 170 and 180 may extend along the inner surface of the tower part 100 to form the discharge passages 101a and 102a.

That is, the outer guides 150 and 160 and the inner guides 170 and 180 may form a space in which the discharge passages 101a and 102a are defined.

For example, the outer guides 150 and 160 and the inner guides 170 and 180 may be formed to surround a space having a substantially semicircular cross-section. Here, the semicircular space may be understood as a first discharge passage 101a or a second discharge passage 102a.

Accordingly, the out guides 150 and 160 and the inner guides 170 and 180 may be formed to have a smaller cross-sectional area of air flow toward the inlets of the rear discharge ports 143 and 144 to be described later and the inlets of the front discharge ports 133 and 134 to be described later. .

In addition, the out guides 150 and 160 and the inner guides 170 and 180 may be coupled to an inner surface of the tower case 100 . In addition, the out guides 150 and 160 and the inner guides 170 and 180 may extend in the vertical direction along the tower case 100 .

In addition, the out guides 150 and 160 and the inner guides 170 and 180 may be formed such that the discharge passages 101a and 102a have the largest width at the perpendicular of the reference line L passing through the central axis O. have. In addition, the outer guides 150 and 160 and the inner guides 170 and 180 may be formed such that the widths of the discharge passages 101a and 102a gradually decrease as they move forward and backward with respect to the vertical line of the reference line L.

The out guides 150 and 160 may extend along the outer surfaces 115 and 116 . In addition, the out guides 150 and 160 may be in close contact with the inner circumference surface of the outer surfaces 115 and 116 .

In addition, the outguides 150 and 160 may include a first outguide 150 forming a first discharge passage 101a and a second outguide 160 forming a second discharge passage 102a. (See Fig. 5)

The first out guide 150 may extend along an inner circumference surface of the first outer surface 115 . In addition, the second out guide 160 may extend along an inner circumferential surface of the second outer surface 116 .

The first outguide 150 and the second outguide 160 may be formed as a pair symmetrical with respect to the reference line L.

Therefore, the structural specifications of the outguides 150 and 160 to be described below describe the structural specifications common to the first outguide 150 and the second outguide 160 .

The out guides 150 and 160 may further include front guides 151 and 161 and rear guides 155 and 165 coupled to the rear ends of the front guides 151 and 161 and extending integrally.

The outer peripheral surfaces of the front guides 151 and 161 may be combined with the inner peripheral surfaces of the outer surfaces 115 and 116 . For example, the outer circumference surfaces of the front guides 151 and 161 may be in close contact with the inner circumference surfaces of the outer surfaces 115 and 116 . Here, since the inner peripheral surfaces of the outer surfaces 115 and 116 extend in the circumferential direction to have a predetermined curvature, the outer peripheral surfaces of the front guides 151 and 161 may extend to have a first curvature corresponding thereto.

The inner peripheral surfaces of the front guides 151 and 161 may define the front portions of the discharge passages 101a and 102a, and may extend in the circumferential direction to have a second curvature. That is, the inner peripheral surfaces of the front guides 151 and 161 may be formed in a curved surface.

Accordingly, the front guides 151 and 161 may guide the air in the front portion of the discharge passages 101a and 102a to smoothly flow into the front discharge ports 133 and 134 .

That is, the front guides 151 and 161 may be formed so that the air flowing through the discharge passages 101a and 102a smoothly flows to the front discharge holes 133 and 134 .

For example, the inner peripheral surfaces of the front guides 151 and 161 may be formed to have a greater curvature than the outer peripheral surfaces of the front guides 151 and 161 . That is, the first curvature may be smaller than the second curvature. Accordingly, the front guides 151 and 161 may be formed so that the inner circumferential surface is more curved than the outer circumferential surface.

In other words, the front guides 151 and 161 may be formed in a streamlined shape to minimize air resistance. In detail, the front guides 151 and 161 may be formed so that the thickness of the cross-section becomes thicker as they go toward the front discharge ports 133 and 134 .

Accordingly, as described above, the front guides 151 and 161 may allow a minimum design dimension (or space) for the front outlets 133 and 134 to extend to have a lower inclination angle than the rear outlets 143 and 144 .

For convenience of description, the front guides 151 and 161 include a first front guide 151 constituting the front portion of the first outguide 150 and a second front guide constituting the front portion of the second outguide 160 . It can be divided by the front guide 161 . Of course, the first front guide 151 and the second front guide 161 may be formed to be symmetrical with respect to the reference line (L).

The outer peripheral surfaces of the rear guides 155 and 165 may be combined with the inner peripheral surfaces of the outer surfaces 115 and 116 . For example, the outer peripheral surfaces of the rear guides 155 and 165 may extend to have the same first curvature as the inner peripheral surfaces of the outer surfaces 115 and 116 .

The inner peripheral surfaces of the rear guides 155 and 165 may define rear portions of the discharge passages 101a and 102 .

In addition, the inner peripheral surfaces of the rear guides 155 and 165 may extend to have the same curvature as the first curvature, except for the rear portion where the guide curved portions 158 and 168 are formed. In addition, the width of the rear guides 155 and 165 may be formed such that the rear portion is relatively large.

The rear portions of the rear guides 155 and 164 may be located in a space between the outer surfaces 115 and 116 and the opposite surfaces 111 and 112 are connected. Accordingly, inner peripheral surfaces of the rear guides 155 and 165 may extend from the rear portion of the rear guides 155 and 165 to have a third curvature greater than the first curvature. Also, the third curvature may be greater than the second curvature.

Accordingly, the inner peripheral surface of the rear guides 155 and 165 may guide the air of the discharge passages 101a and 102a to pass through the rear discharge ports 143 and 144 .

As a result, the guide curved portions 158 and 168 formed in the rear portion of the rear guides 155 and 165 are formed together with the rear curved portions 175 and 185 formed in the rear portion of the inner guides 170 and 180 to be described later in the discharge passages 101a and 102a. The flow cross-sectional area may be changed so that air flows into the rear discharge ports 143 and 144 . In addition, due to the Coanda effect to be described later, the pressure difference between the valley groove 120 and the discharge passages 101a and 102a can accelerate the inflow of air into the rear discharge ports 143 and 144, and finally, the rear discharge ports 143 and 144 ), the air passing through may flow toward the front portion of the valley groove 120 .

For convenience of description, the rear guides 155 and 165 are a first rear guide 155 constituting a rear portion of the first out guide 150 and a second rear portion constituting a rear portion of the second out guide 160 . It can be distinguished by a guide 165 . Of course, the first rear guide 155 and the second rear guide 165 may be formed to be symmetrical with respect to the reference line (L).

The inner guides 170 and 180 may be coupled along inner surfaces of the opposite surfaces 111 and 112 . In addition, the inner guides 170 and 180 are a second discharge passage together with the first inner guide 170 and the second out guide 160 forming a first discharge passage 101a together with the first out guide 150 . A second inner guide 180 forming the 102a may be included.

The first inner guide 170 may extend along an inner surface of the first opposite surface 111 . In addition, the second inner guide 180 may extend along the inner surface of the second opposite surface 112 .

In addition, the first inner guide 170 and the second inner guide 180 may be formed as a pair symmetrical with respect to the reference line (L).

Similarly, it should be noted that the structural specifications of the inner guides 170 and 180 described below describe the structural specifications common to the first inner guide 170 and the second inner guide 180 .

Meanwhile, the out guides 150 and 160 may be spaced apart from the inner guides 170 and 180 to form the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 communicating with the discharge passages 101a and 102a. .

Hereinafter, a structure related thereto will be described in detail.

The front guides 151 and 161 may further include guide oblique portions 153 and 163 defining one side of the inlet of the front discharge port 133 and 134 .

In addition, the inner guides 170 and 180 may further include forward oblique portions 171 and 181 defining the other side of the inlet of the front discharge port 133 and 134 .

The guide oblique portions 153 and 163 may be positioned at corners where the front guides 151 and 161 face the valley groove 120 and the inner peripheral surfaces of the front guides 151 and 161 come into contact with each other.

In addition, the guide oblique portions 153 and 163 may be formed in a round shape to minimize resistance of air flowing into the front discharge ports 133 and 134 . For example, the guide oblique portions 153 and 163 may be formed by chamfering the corners extending in the vertical direction.

The guide oblique portions 153 and 163 may include a first guide oblique line portion 153 formed on the first front guide 151 and a second guide oblique line portion 163 formed on the second front guide 161 . can

The forward oblique portions 171 and 181 may be located at front ends of the inner guides 170 and 180 . In other words, the front diagonal portions 171 and 181 may form the front surfaces of the inner guides 170 and 180 .

In addition, the front oblique portions 171 and 181 may extend to one edge of the opposite surfaces 111 and 112 defining the front slits 131 and 132 . In this case, the front oblique portions 171 and 181 may extend in an oblique direction to have the same inclination angle with respect to the front slits 131 and 132 and the reference line L.

In addition, the front oblique portions 171 and 181 may be positioned to be spaced apart from the rear of the guide oblique portions 153 and 163 .

The front oblique parts 171 and 181 are a first front oblique part 171 forming a front end of the first inner guide 170 and a second front oblique part 181 forming a front end of the second inner guide 180 . ) may be included.

In summary, the front outlets 133 and 134 may have inlets defined by the guide oblique portions 153 and 163 and the front oblique portions 171 and 181 . And, as described above, the front outlets 133 and 134 may have outlets defined by the front slits 131 and 132 .

The front discharge ports 133 and 134 are defined, and in order to guide the air of the discharge passages 101a and 102a to the valley groove 120, the guide oblique portions 153 and 163, front doors 154 and 164 and a front slit to be described later. 131 and 132 may be connected to form one plane, and the front oblique portions 171 and 181 and the front slits 131 and 132 may be connected to form another plane on the opposite side.

For example, the angle of inclination at which the guide oblique portions 153 and 163 and the front oblique portions 171 and 181 extend toward the valley groove 120 is, 120) may be the same as the angle extending toward the (see FIG. 3).

Accordingly, resistance to the air flowing into the valley groove 120 according to the guides of the front discharge ports 133 and 134 can be minimized.

The rear guides 155 and 164 may further include guide curved portions 158 and 168 defining one side of the inlet of the rear discharge ports 143 and 144 .

In addition, the inner guide 170 may further include rear curved portions 175 and 185 defining the other side of the inlet of the rear discharge ports 143 and 144 .

The rear curved portions 175 and 185 and the guide curved portions 158 and 168 together form a curved flow path so that the air flowing through the discharge passages 101a and 102a can be smoothly introduced into the rear discharge ports 143 and 144. can

As described above, the guide curved portions 158 and 168 may be located at the rear portion of the rear guide 155.165. For example, the guide curved portions 158 and 168 may be located in a space between the outer surfaces 115 and 116 and the opposite surfaces 111 and 112 are connected.

In addition, the guide curved portions 158 and 168 may be understood as portions in which inner peripheral surfaces of the rear guides 155 and 165 extend to have the third curvature. The guide curved portions 158 and 168 may extend along the Coanda faces 176 and 186 to be described later so that air can flow efficiently. That is, the third curvature may be preset.

The guide curved portions 158 and 168 are formed in a curved surface so that when the air in the discharge passages 101a and 102a is directed to the rear discharge ports 143 and 144, it is a curved flow path that can minimize resistance together with the rear curved portions 175 and 185, which will be described later. can form.

The guide curved portions 158 and 158 may extend to the rear slits 141 and 142 . Accordingly, the guide curved portions 158 and 168 and the rear slits 141 and 142 may form a smooth surface for guiding the air introduced into the rear discharge ports 143 and 144 to the valley groove 120 . Likewise, the Coanda faces 176 and 186 to be described later extend to the rear slits 141 and 142 to form a smooth surface positioned on the opposite side.

The guide curved portions 158 and 168 include a first guide curved portion 158 positioned at a rear portion of the first rear guide 155 and a second guide curved portion 168 positioned at a rear portion of the second rear guide 165 . may include.

The first curved guide portion 158 and the second curved guide portion 168 may be formed to be symmetrical with respect to the reference line (L).

Meanwhile, the rear curved portions 175 and 185 may be located at rear ends of the inner guides 170 and 180 . That is, the rear curved portions 175 and 185 may form rear portions of the inner guides 170 and 180 .

The second half curved portions 175 and 185 may be formed to have a greater width than the front portions of the inner guides 170 and 180 . That is, the rear curved portions 175 and 185 may extend to have a predetermined inclination angle with respect to the reference line L toward the rear. For example, the back curved portions 175 and 185 may have an airfoil shape. Accordingly, the extended ends of the back curved portions 175 and 185 may have a blunt shape.

In other words, the extended ends of the rear curved portions 175 and 185 may have a blunt shape to minimize resistance and guide the flow direction of air toward the front of the valley groove 120 .

The back curved parts 175 and 185 include a first back curved part 175 positioned at the rear end of the first inner guide 170 and a second back curved part 185 positioned at the rear end of the second inner guide 180 . can do.

The first back curved part 175 and the second back curved part 185 may be formed to be symmetrical to each other with respect to the reference line (L).

Accordingly, the first back curved portion 175 may extend backward to be inclined upward with respect to the reference line L. In addition, the second back curved portion 185 may extend backwardly inclined downward with respect to the reference line (L).

As described above, the rear discharge ports 143 and 144 may extend in an oblique direction with respect to the reference line L so that the discharged air flows forward of the valley groove 120 .

That is, the rear curved portions 175 and 185 and the guide curved portions 158 and 168 defining the rear discharge ports 143 and 144 guide the air introduced into the rear discharge ports 143 and 144 to flow in the front of the valley groove 120 . can do.

To this end, the rear curved portions 175 and 185 and the guide curved portions 158 and 168 may extend to have a curved shape toward the valley groove 120 . And the rear curved portions 175 and 185 may include Coanda surfaces 176 and 186 for guiding the air introduced into the rear discharge ports 143 and 144 to the front.

The Coanda surfaces 176 and 186 may be understood as surfaces extending from the extended ends of the rear curved portions 175 and 185 to the rear slits 141 and 142 . For example, the Coanda faces 176 and 186 may be formed as curved surfaces.

The Coanda faces 176 and 186 may be positioned to be spaced apart from the front of the guide curved portions 158 and 168. In addition, the Coanda faces 176 and 186 may be positioned to face the guide curved portions 158 and 168 .

In addition, the space between the Coanda face (176, 186) and the guide curved portion (158, 168) can be understood as the rear discharge port (143, 144).

Accordingly, the Coanda surfaces 176 and 186 may extend to have a predetermined inclination angle with respect to the reference line L together with the guide curved portions 158 and 168 . Here, the predetermined inclination angle may be greater than the inclination angle of the front discharge ports 133 and 134 with respect to the reference line L.

Meanwhile, the inclination angles of the Coanda surfaces 176 and 186, the distances between the Coanda surfaces 176 and 186 and the guide curved portions 158 and 168 may be set to satisfy a predetermined reference speed and flow rate.

In addition, the Coanda surfaces 176 and 186 may include a first Coanda surface 176 formed in the first rear curved portion 175 and a second Coanda surface 186 formed in the second rear curved portion 185 . can

The first Coanda surface 176 and the second Coanda surface 186 may be formed to be symmetrical to each other with respect to the reference line (L).

The first Coanda surface 176 and the second Coanda surface 186 may be formed to impart a Coanda effect to the air discharged toward the valley groove 120 .

Here, the Coanda effect can be understood as having a tendency for a fluid such as air to adhere to the surface of a solid and flow.

That is, the air introduced into the rear outlets 143 and 144 may flow along the curved Coanda faces 176 and 186 . Accordingly, the air (FR, see FIG. 5 ) discharged from the rear discharge ports 143 and 144 may be amplified by the Coanda effect and flow toward the front of the valley groove 120 . In addition, the air FR discharged to the valley groove 120 may be guided along the surfaces of the opposite surfaces 111 and 112 to flow forward.

In addition, the opposite surfaces 111 and 112 defining both surfaces of the valley groove 120 may be formed as curved surfaces that move away from each other in the front-rear direction with respect to the central axis O. Accordingly, the air discharged from the rear discharge ports 143 and 144 may be discharged along the curvature of the opposing surfaces 111 and 112 due to the Coanda effect while passing through the central axis O.

Accordingly, in the case of generating the discharge air flow of the blower 1 only with the air discharged from the rear discharge ports 143 and 144 , since the air flow spreads from the front of the blower 1 , the discharge air flow capable of covering a relatively wide area can be provided to users.

In addition, when a user wants a stronger and more direct airflow, or when a user wants to provide a more intensive discharge airflow while covering a relatively narrow area in front of the blower 1, the blower 1 has front discharge ports 133 and 134. It can be provided so that the air is discharged.

In an embodiment, the tower part 100 may further include front doors 154 and 164 for opening and closing the front discharge ports 133 and 134 . (See Fig. 5)

The front doors 154 and 164 may be installed to be movable inside the opposite surfaces 111 and 112 . That is, the front doors 154 and 165 may be located in the inner space of the tower case 110 so as to be hidden from the user's gaze.

For example, the front doors 154 and 164 may be installed to be movable in a sliding manner in a space between the opposite surfaces 111 and 112 and the front guides 151 and 161 . Accordingly, the front doors 154 and 164 can open and close the front discharge ports 133 and 134 through sliding movement.

Also, the front doors 154 and 164 may open and close the front slits 131 and 132 in the inner direction. Accordingly, since the front doors 154 and 165 close the front slits 131 and 132 in a hidden state from the user's gaze, it is possible to provide a clean and aesthetic appearance when generating an indirect or direct wind.

The front doors 154 and 164 may include a first front door 154 for opening and closing the first front discharge port 133 and a second front door 164 for opening and closing the second front discharge port 134 .

For example, the first front door 154 may be installed in a space between the first front guide 151 and the first opposite surface 111 defining one side of the first front slit 131 . Similarly, the second front door 164 may be installed in a space between the second front guide 161 and the second opposite surface 112 defining one side of the second front slit 132 .

In addition, the blower 1 may generate an indirect or direct wind to be described later by opening and closing the front doors 154 and 164 .

4 is a view schematically showing an air flow of a blower according to an embodiment of the present invention.

Referring to FIG. 4 , ambient air F may be introduced into the suction unit 13 formed under the blower 1 . The air may be introduced into the suction passage 45 through a filter (not shown), and may pass through a fan 210 that provides a flow pressure.

The air passing through the fan 210 rises along the guide flow path 335 of the diffuser 300 , and passes through the distribution flow path 410 to the first tower 101 and the second tower 102 . can be branched.

Air (dotted line) branching and rising into the first tower 101 and the second tower 102 may flow through the discharge passages 101a and 102a.

And some of the air flowing through the discharge passages 101a and 102a may be discharged (FR) to the rear discharge ports 143 and 144 by the guides of the guide curved portions 158 and 168 and the rear curved portions 175 and 185. For example, the air flowing in the rear portion of the discharge passages 101a and 102a may be discharged to the rear discharge ports 143 and 144 .

The remaining air may be discharged (FF) to the front discharge ports 133 and 134 by the guides of the guide oblique portions 153 and 163 and the front oblique portions 171 and 181 . For example, the air flowing in the front portion of the discharge passages 101a and 102a may be discharged to the front discharge ports 133 and 134 .

Meanwhile, the air flowing through the discharge passages 101a and 102a flows to the front discharge ports 133 and 134 according to the guide of the front vane 135 or flows to the rear discharge ports 143 and 144 according to the guide of the rear vane 145 . can do.

In addition, by the guide of the plurality of front vanes 135 or the plurality of rear vanes 145 spaced apart in the vertical direction, the air flowing through the discharge passages 101a and 102a flows through the front discharge holes 133 and 134 at different heights. ) and the rear discharge ports 143 and 144 may pass through. That is, air may be discharged toward the valley groove 120 at different heights.

5 is a view schematically showing an air flow for providing indirect wind of a blower according to an embodiment of the present invention, and FIG. 6 is a schematic view showing an air flow for providing direct wind of a blower according to an embodiment of the present invention It is a drawing that shows

Referring to FIG. 5 , as described above, the opposing surfaces 111 and 112 may be formed as curved surfaces extending to become narrower in width toward the central axis O. Referring to FIG. Accordingly, the width formed by the opposing faces 111 and 112 may be increased as the central axis O goes toward the front ends of the opposing faces 111 and 112 .

Due to this, since the air discharged from the rear outlets 143 and 144 flows forward along the guides of the opposing faces 111 and 112, in the front end of the opposing faces 111 and 112 in the width direction (or both sides of the reference line L) direction) can spread widely.

Accordingly, only the air (FR, “rear discharge air”) discharged from the rear discharge ports 143 and 144 is mixed, and the mixed air flow provided to the front of the blower 1 where the user is located is more than from the front of the blower 1 . It can be diffused to cover a large area.

Due to this, the mixed air flow may have a relatively smaller wind speed and strength. Accordingly, the mixed air flow can provide a gentle air flow to the user.

Here, the mixed air flow is an air flow discharged from the blower 1 and provided to a user, and may be referred to as a “discharge air flow”.

In addition, the discharge air flow in which only the air FR discharged from the rear discharge ports 143 and 144 is mixed may be referred to as an “indirect wind”.

Referring to FIG. 6 , when air is also discharged from the front discharge ports 133 and 134 together with the rear discharge ports 143 and 144 , the air FF discharged from the front discharge ports 133 and 134 is discharged from the rear discharge ports 143 and 144 . It can be mixed in the outer portion of the air (FR) flowing in the front of the valley groove (120).

That is, since the front outlets 133 and 134 are located in front of the rear outlets 143 and 144 and have different inclination angles from the reference line L, the air discharged from the front outlets 133 and 134 (FF, “front Discharge air”) may be mixed to further strengthen the straight component of the air FR discharged from the rear discharge ports 143 and 144 in the front end region of the valley groove 120 .

In summary, according to the above-described inclination relationship between the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 , the flow FF of air discharged from the front discharge ports 133 and 134 is the air discharged from the rear discharge ports 143 and 144 . On both sides of (FR), it is possible to achieve a more concentrated or forward-biased mixing in the front of the valley groove (120).

That is, the air FF discharged from the front outlets 133 and 134 may guide the forward airflow of the air FR discharged from the rear outlets 143 and 144 to be concentrated in the front of the blower 1 .

As a result, the air flow in which the air FF discharged from the front discharge ports 133 and 134 and the air FR discharged from the rear discharge ports 143 and 144 are finally mixed is the air discharged from the rear discharge ports 143 and 144 (FR) It is possible to form a mixed air stream relatively concentrated in the front of the valley groove 120 than when only the two sides are mixed (indirect wind). Accordingly, the user may be provided with a stronger and faster airflow, and may be provided with a forward-facing airflow in contact with the skin.

Here, the discharge air flow in which the air FR discharged from the rear discharge ports 143 and 144 and the air FF discharged from the front discharge ports 133 and 134 are mixed may be referred to as "direct wind".

In summary, the front discharge air FF discharged in the opposite direction from the front part of the blower 1 is the rear discharge air FR discharged from the rear part of the blower 1 in the opposite direction to each other. By adding and/or mixing the forward airflow, the direction and intensity of the discharge airflow finally provided to the user may be adjusted.

In other words, the air discharged from the front discharge ports 133 and 134 or the front slits 131 and 141 may set the directionality of the mixed air flow of the rear discharge air FR.

Meanwhile, referring to FIGS. 5 and 6 , the blower 1 according to the embodiment of the present invention mixes air discharged from opposite surfaces 111 and 112 in opposite directions to provide a comfortable discharge air flow to the user in the front area. can provide

In addition, the blower 1 may vary the area covered by the discharge air flow according to the mixing level of the air discharged from the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 , respectively.

In detail, the blower 1 may control the mixing level of the discharged air by opening and closing at least one of the front discharge ports 133 and 134 and the rear discharge ports 143 and 144 .

That is, the blower 1 according to the embodiment of the present invention is due to structural specifications such as the formation position of the front discharge ports 133 and 134 and the rear discharge ports 143 and 144, the angle of inclination with the reference line L, the air guide direction, and the extension direction. Thus, the mixing level of the discharged air can be adjusted according to whether the front discharge ports 133 and 134 are opened or closed or the degree of opening and closing.

The blower 1 according to the embodiment of the present invention will be described based on a case in which front doors 154 and 164 for opening and closing the front discharge ports 133 and 134 are provided. Of course, the present invention is not limited thereto, and a door (not shown) capable of opening and closing the rear discharge ports 133 and 134 may be provided.

As described above, the front doors 154 and 164 may open and close the front discharge ports 133 and 134 .

In detail, the front doors 154 and 164 may close the front outlets 133 and 134 to generate the indirect wind. In addition, the front doors 154 and 164 may open the front outlets 133 and 134 to generate the direct wind.

Also, the front doors 154 and 164 may adjust the intensity of the direct wind or the indirect wind by adjusting the degree of opening of the front discharge ports 133 and 134 .

For example, the front doors 154 and 164 may open only half of the front discharge ports 133 and 134 . At this time, the direction and intensity of the air FF discharged from the front discharge ports 133 and 134 is reduced, so that a weaker direct wind may be provided.

According to this, the blower 1 can provide direct or indirect wind in various intensities and directions by controlling the operations of the front doors 154 and 164 according to the user's preference.

Claims (29)

1. a support unit including a suction unit through which air is introduced and a filter for filtering the air introduced into the suction unit;

   a tower part extending upward from the upper end of the support part, and in which the air passing through the filter rises; and

   It includes a valley groove that is a space opened in the front and rear directions from the central axis of the tower part,

   The tower part,

   an opposing surface extending in the front-rear direction to define the valley groove and formed as surfaces facing each other; and

   A blower including a pair of outlets formed on the opposite surfaces to form a symmetry with respect to the valley groove.
2. The method of claim 1,

   The outlet is a blower extending obliquely toward the valley groove.
3. The method of claim 1,

   The outlet is

   a rear discharge port located at a rear portion of the opposite surface; and

   A blower including a front discharge port located in a front portion of the opposite surface.
4. 4. The method of claim 3,

   The front outlet is a blower for guiding the flow of air discharged from the rear outlet to be concentrated forward.
5. 4. The method of claim 3,

   The tower unit, the blower further comprising a front door for opening and closing the front discharge port.
6. 6. The method of claim 5,

   When the front door is opened, the air discharged from the rear discharge port is concentrated toward the front of the valley groove,

   When the front door is closed, the air discharged from the rear outlet is diffused from the front of the valley groove to both sides.
7. 6. The method of claim 5,

   The front door is a blower that opens and closes to adjust an area of an air flow formed by the air discharged from the rear discharge port.
8. 6. The method of claim 5,

   The front door is a blower that adjusts the level of mixing of the air discharged from the rear discharge port and the air discharged from the front discharge port by adjusting the degree of opening of the front discharge port.
9. 4. The method of claim 3,

   The rear discharge port includes a pair of first rear discharge ports and a second rear discharge port formed to be symmetrical with respect to the valley groove,

   The first rear discharge port and the second rear discharge port are blowers for guiding air toward the front of the valley groove.
10. 10. The method of claim 9,

    The front discharge port includes a pair of first front discharge ports and second front discharge ports formed to be symmetrical with respect to the valley groove,

    The first front discharge port and the second front discharge port are mixed with the air flowing in the front of the valley groove.
11. 4. The method of claim 3,

    The front outlet and the rear outlet have different inclination angles extending toward the valley groove.
12. 12. The method of claim 11,

    The rear outlet, the blower having a larger inclination angle than the front outlet.
13. 4. The method of claim 3,

    The tower part,

    Further comprising an outer guide and an inner guide forming a discharge passage for guiding the air introduced from the support in the inside of the tower portion,

    The inner guide is a blower extending along an inner surface of the opposite surface.
14. 14. The method of claim 13,

    The out guide is

    a guide oblique portion defining one side of the inlet of the front discharge port; and

    A blower which defines one side of the inlet of the rear discharge port and includes a guide curved portion that is bent to have a predetermined curvature.
15. 15. The method of claim 14,

    The inner guide is,

    a forward oblique portion disposed to be spaced apart from the guide oblique portion to define the other side of the inlet of the front discharge port;

    a rear curved portion spaced apart from the guide curved portion to define the other side of the inlet of the rear discharge port; and

    A blower formed on the rear curved portion and comprising a Coanda surface for guiding the air introduced into the rear discharge port to flow in the front of the valley groove.
16. a support unit including a suction unit through which air is introduced and a filter for filtering the air introduced into the suction unit; and

    It extends upward from the upper end of the support part and includes a tower part in which the air passing through the filter is branched and introduced,

    The tower part,

    an opposing surface forming a valley groove that is a space open in the front-rear direction along the central axis; and

    and a slit formed on the opposite surface and for discharging the branched air to the valley groove.
17. 17. The method of claim 16,

    The slit is a blower located at the outlet of the outlet for guiding the flow direction to direct the internal air of the tower portion toward the valley groove.
18. 18. The method of claim 17,

    The outlet and the slit extend toward the valley groove to have the same inclination.
19. 17. The method of claim 16,

    The slit is

    a front slit forming an outlet of a front discharge port for guiding the internal air of the tower unit to be discharged from the front of the central axis; and

    and a rear slit forming an outlet of a rear discharge port for guiding the internal air of the tower part to be discharged from the rear of the central shaft.
20. 20. The method of claim 19,

    An inclination angle of the front discharge port and the front slit extending toward the valley groove is smaller than an inclination angle of the rear discharge port and the rear slit extending toward the valley groove.
21. 17. The method of claim 16,

    The air discharged from the slit is discharged into the valley groove in a direction facing each other to form a mixed air flow,

    A blower in which the mixed air flow flows forward.
22. 17. The method of claim 16,

    The slit is

    a pair of front slits positioned on the front part of the opposite surface; and

    It includes a pair of rear slits located behind the pair of front slits,

    The air discharged from the pair of rear slits forms a mixed air flow in the valley groove and flows forward.
23. 23. The method of claim 22,

    The air discharged from the pair of front slits is a blower capable of setting the directionality of the mixed air flow.
24. 24. The method of claim 23,

    The air discharged from the pair of front slits is mixed in both directions of the mixed air stream.
25. 17. The method of claim 16,

    The tower unit includes a first tower and a second tower that are symmetrical with respect to the valley groove,

    The opposite surface is a blower comprising a first opposed surface formed in the first tower and a second opposed surface formed in the second tower so as to face each other with the bell-in-the-way therebetween.
26. 26. The method of claim 25,

    The first opposed surface and the second opposed surface are formed in a curved surface so as to be closest to the central axis.
27. 17. The method of claim 16,

    The support portion extends toward the upper portion so that the diameter becomes smaller,

    The tower portion extends from the upper end of the support portion so that the diameter decreases continuously toward the upper portion.
28. 17. The method of claim 16,

    The suction unit, a blower including a plurality of holes perforated in the circumferential direction and the vertical direction
29. a support unit including a suction unit through which air is sucked, and a filter for purifying the air suctioned into the suction unit; and

    It is supported by the support part and includes a tower part for discharging the air introduced from the support part,

    The tower part,

    a tower case forming an exterior of the tower part;

    Opposing surfaces formed in the tower case to form an open space in the front and rear directions along the central axis; and

    It is located on the opposite surface and includes a pair of outlets for discharging air into the open space,

    The pair of outlets,

    a front discharge port located in a front portion of the opposite surface; and

    It is located in the rear portion of the opposite surface, and includes a rear discharge port defined by the Coanda surface,

    The air discharged from the rear outlet is a blower that flows forward by the Coanda surface.

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