JP2011055975A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner with the improved effect of entirely removing dust stuck to a filtration filter. <P>SOLUTION: The vacuum cleaner includes: an electric blower 21 for generating suction air for sucking the dust; the filtration filter 27b for filtering the dust collected by the suction air; a dust collecting case 5 for accumulating the dust filtered by the filtration filter 27b; and a dust removing mechanism 51 for removing the dust stuck to the filter surface of the filtration filter 27b. The dust removing mechanism 51 is vibrated by a vibrator motor 55, high-speed circular vibrations are given to the filter surface of the filtration filter 27b, and the dust is effectively removed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner that efficiently removes a filtering filter that filters coarse dust and fine dust, and the suction force is not easily reduced even when the dust is sucked.

  2. Description of the Related Art In recent years, a so-called cyclone type vacuum cleaner that attracts attention is a type of vacuum cleaner that imparts a swirling component to the airflow of suction air and separates and removes dust from the airflow by centrifugal force. This type of vacuum cleaner generates a swirling airflow in the dust collecting case when an air flow containing dust is introduced into the dust collecting case, and separates the dust from the air flow by the centrifugal force of the swirling airflow. A configuration in which the separated dust is accumulated in the dust collection case is employed, and a filtration filter is provided at a communication portion between the dust collection case and the electric blower (see, for example, Patent Document 1).

  As described in Patent Document 1, it is common to dispose a first filtration filter for filtering and separating coarse dust and a second filtration filter for filtering and separating fine dust downstream of the dust collection case. It is.

JP 2008-80146 A

  However, the filtered fine dust tends to adhere to the surface of the second filtration filter, and in order to remove this fine dust, a dust remover is provided on the downstream side of the second filtration filter, and the dust remover is attached to the filter surface by a spring force. The fine dust is removed with the impact force. However, if the impact force of hitting the dust remover against the filter surface is further increased in order to enhance the ability to remove dust, the second filter is buckled and broken.

  In order to avoid the damage accident, it is necessary to limit the repulsive force of the spring to some extent, and since the impact force from the dust remover propagates only locally, only local dust removal can be performed. That is, it was difficult to remove the entire filtration filter without damaging the second filtration filter.

  This invention solves such a subject, and it aims at providing the vacuum cleaner which improved the effect which removes the dust adhering to the filtration filter.

  In order to achieve the above object, an electric vacuum cleaner of the present invention includes an electric blower for generating suction air for sucking dust, a filter for filtering dust collected by the suction air, and the filtration An electric vacuum cleaner provided with a dust collecting case for collecting dust filtered by a filter and a dust removing mechanism for removing dust adhering to the filter surface of the filtration filter, wherein the dust removing mechanism is vibrated by a vibrator motor. This is a characteristic configuration.

  Thereby, since the high-speed vibration of the circular motion of the vibrator motor is transmitted to the filter through the dust remover, the dust attached to the filter surface of the filter can be effectively peeled off and removed.

  The vacuum cleaner of the present invention transmits high-speed vibration of the circular motion of the vibrator motor to the filtration filter through the dust remover, and can effectively remove the dust adhering to the filter surface of the filtration filter, and high suction Power can be maintained for a long time.

Whole structure figure of the electric vacuum cleaner in Embodiment 1 of this invention Sectional drawing which shows the structure of the main part of the vacuum cleaner (A) Front sectional view of the dust collecting case of the vacuum cleaner, (b) Side sectional view of the dust collecting case, (c) A-A sectional view of (b), (d) B- of (b) B cross section (A) Flat sectional view showing the airflow near the suction port in the dust collecting case of the electric vacuum cleaner, (b) Flat sectional view showing the flow of the airflow near the filtration filter in the dust collecting case, (c) Dust collecting Longitudinal sectional view showing the flow of longitudinal airflow in the case Sectional drawing which shows the principal part which shows the structure of the dust collection case which concerns on Embodiment 1 CC sectional view of FIG. Sectional drawing which shows the surrounding structure of the vibrator motor according to the first embodiment Sectional drawing which shows the structure of the dust collection case which concerns on Embodiment 2. FIG.

  The first invention is an electric blower for generating suction air for sucking dust, a filter for filtering dust collected by the suction air, and a dust collecting case for storing dust filtered by the filter. A vacuum cleaner provided with a dust removal mechanism for removing dust adhering to the filter surface of the filtration filter, wherein the dust removal mechanism is vibrated by a vibrator motor.

  This allows high-speed vibration of the circular motion of the vibrator motor to be transmitted to the filter through the dust remover, effectively removing the dust adhering to the filter surface of the filter and maintaining a high suction force for a long time. it can.

  Due to the principle of the pendulum by the vibrator motor, the filter surface is affected by the amplitude in the left-right and front-back directions, and at the same time, the number of rotations of the motor x the number of vibrations for the drive time acts. It can contribute to the filter surface.

  In the second invention, in particular, the dust removing mechanism of the first invention comprises a dust remover and a vibrator motor held by the dust remover, so that the high-speed vibration of the vibrator motor is directly transmitted to the dust remover. Without reducing the vibration energy of the motor, it can act on the filter surface of the filtration filter to efficiently remove dust.

  In the third invention, particularly in the first or second invention, the dust remover is integrally formed with the filtration filter, so that the behavior of the dust remover is directly transmitted to the filtration filter without being attenuated. Since the vibration of is directly transmitted to the filter, a good dust removal effect can be obtained.

  In a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the filtration filter has a frame column that reinforces its strength on the filter surface, and the dust remover is the frame column. By being bonded to the filter surface of the filtration filter without contact, the vibration of the vibrator motor can be propagated to the filtration filter without attenuating while ensuring the strength of the filtration filter, thereby enhancing the dust removal effect. .

In the fifth aspect of the invention, in particular, in the fourth aspect of the invention, the frame column holds the dust remover movably so that the vibration of the dust remover is propagated to the filter surface of the filtration filter without being attenuated. The impact resulting from the difference between the displacement of the filter and the displacement of the dust remover is received, and the dust removal effect can be further enhanced.

  In a sixth aspect of the present invention, in particular, in any one of the first to fifth aspects, the filtration filter includes a substantially cylindrical first filtration filter, and a substantially cylinder provided on the downstream side of the first filtration filter. The first dust remover has a ring shape that matches the outer peripheral shape of the second filtration filter, so that the vibration shock caused by the pendulum phenomenon before and after the dust remover is formed. However, it can be made to act reliably on some filter surface.

  In the seventh invention, in particular, the second filtration filter of the seventh invention has a membrane filtration membrane formed into a pleat shape, so that the vibration from the vibrator motor transmitted through the dust remover is surely acted on itself. Can do.

  In the eighth invention, in particular, the first filtration filter of the sixth or seventh invention is configured to remove dust from the vibrator motor by opening an infinite number of air holes of about 100 to 300 μm in a metal plate or a resin plate. The vibration of the child resonates with the rigidity of the filter, and the amplitude can be further increased.

  In a ninth aspect of the invention, in particular, in any one of the sixth to eighth aspects of the invention, a second dust remover having a vibration propagation portion is attached to the outer periphery of the first filtration filter, and the vibration propagation portion is attached to the second filtration. By contacting the inner surface of the filter and connecting the first dust remover and the second dust remover via the second filtration filter, the first and second filtration filters can be connected with one vibrator motor. It is possible to efficiently remove dust simultaneously by vibrating at high speed.

  According to a tenth aspect of the invention, in particular, in any one of the first to ninth aspects of the invention, the vibrator motor operates even during the suction operation of the electric blower, and when the suction is performed while vibrating the first filtration filter, The filtration performance of the filtration filter 1 can be improved, and in particular, adhesion of lint fine dust to the filter surface can be suppressed.

  In an eleventh aspect of the invention, in particular, in any one of the first to tenth aspects of the invention, since the dust removing mechanism and the rechargeable battery that drives the dust removing mechanism are provided in the same dust collecting case, the cleaning operator collects the dust. Even if the dust case is removed and carried, the dust removal mechanism can be operated by supplying power from the rechargeable battery, and the filtration filter can be carefully removed (maintenance), so that the user can work without getting his hands dirty.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is an overall configuration diagram showing an overall configuration of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view showing a cross-sectional structure of a main body of the electric vacuum cleaner, and FIG. It is a block diagram which shows the structure of a case.

  As shown in FIG. 1, the wheel 3 and the caster 4 are attached to the lower part of the cleaner body 1, and the cleaner body 1 can move freely on the floor surface. A hose 7 and an extension pipe 8 are sequentially connected to a suction port 6 provided at the upper part of the dust collection case 5, and a suction tool 9 is attached to the tip of the extension pipe 8.

As shown in FIG. 2, an electric blower 21 is built in the cleaner main body 1, and a dust collection case 5 is attached to the cleaner main body 1 via a partition wall 26 having a vent on the upstream side of the electric blower 21. On the other hand, it is detachably installed. By operating the electric blower 21, dust on the floor surface of the house can be sucked, and the dust collecting case 5 is adapted to introduce air containing sucked dust.

  The dust collection case 5 has a shape in which a plurality of hollow cylinders having different diameters are connected in multiple stages, and has a three-stage configuration including a case upper part 22a, a case center part 22b, and a dust container 24 in order from the upper stage. The case upper part 22 a and the case center part 22 b constitute a dust separation part 23, and a cylindrical filtration filter 27 is installed in the dust separation part 23. The dust container 24 at the lowest level accumulates the dust separated by the dust separator 23. A suction port 6 is provided in the tangential direction of the case upper portion 22a, and the suction port 6 introduces external air containing dust into the case upper portion 22a along the tangential direction of the case upper portion 22a.

  The dust collection case 5 communicates from the suction port 6 to the lowermost dust container 24, and the air path from the suction port 6 to the electric blower 21 is an opening provided in the dust separation unit 23 of the dust collection case 5. 25 and the partition wall 26 of the cleaner body 1 are formed to communicate with each other.

  The cylindrical filtration filter 27 includes a cylindrical first filtration filter 27a for filtering coarse dust, and a cylindrical shape for filtering fine dust provided on the outer periphery on the downstream side of the first filtration filter. The second filtration filter 27b is arranged in the middle of a main air passage (first air passage) 29a that connects the suction port 6 of the dust collecting case 5 and the electric blower 21. Yes.

  The main air passage 29a is configured over the entire space from the first filtration filter 27a to the outer periphery of the second filtration filter 27b. Further, a third filtration filter 28 is provided in the upper peripheral portion of the dust container 24, and the sub-communicator communicates from the dust container 24 to the electric blower 21 via the third filter 28 and the second filter 27b. An air passage (second air passage) 29b is formed.

  Next, details of the dust collection case 5 and the cylindrical filtration filter 27 will be described with reference to FIGS. 3 (a), 3 (b), 3 (c), and 3 (d).

  As shown in FIG. 3A, the dust collecting case 5 has a shape in which vertical hollow cylinders are arranged in three stages. As shown in FIG. 3C, the suction port 6 is disposed at a position eccentric from the center of the case upper portion 22a so that the airflow flows in from the tangential direction of the circumferential cross section of the case upper portion 22a.

  In the first embodiment, the dust collecting case 5 has a hollow cylindrical shape, but is not limited to a perfect circle, and may be an elliptical shape, a polygonal shape such as an octagonal shape or a decagonal shape. That is, the airflow that flows in from the tangential direction from the suction port 6 may have a shape that generates a swirling airflow along the inner surface of the dust collecting case 5.

  Similarly, the cylindrical filtration filter 27 is not limited to a perfect circle, and may be an elliptical shape, a polygonal shape such as an octagonal shape or a decagonal shape, and is generated along the inner surface of the dust collecting case 5. It is sufficient that the swirling airflow has a shape that can be generated in the cylindrical hollow portion in the first filtration filter 27a. For example, even if the suction port 6 is located in the center, a swirling airflow may be generated using the guide path.

  Accordingly, the swirl air flow generated along the inner surface of the case upper portion 22a in the dust separation portion 23 and the passage forming the swirl air flow generated in the cylindrical hollow portion in the first filtration filter 27a is used as the swirl air circulation air passage. is there.

  Also, the suction port 6 is arranged so that the lower end of the suction port 6 is higher than the upper end of the opening 25 provided in the dust separation unit 23 so that a swirling airflow is generated in the direction of the dust container 24. Further, the ventilation portion of the cylindrical filtration filter 27 is configured from the suction port 6 to the dust accommodating portion 24 side. In this way, the suction port 6 is arranged higher than the opening 25 and the ventilation portion of the filter filter 27 is configured closer to the dust container 24 than the suction port 6 so that the suction port 6 is introduced from the tangential direction of the case upper portion 22a. The generated air generates a swirling airflow that swirls in the horizontal direction while descending downward by the action of the suction force on the opening 25 side.

  As shown in FIG. 3 (b), a dust container 24 for depositing sucked dust is provided at the lower part of the dust collecting case 5, and the bottom surface of the dust container 24 serves as an opening / closing lid 31. The opening / closing lid 31 is opened via the hinge 32 so that the dust in the dust container 24 can be discharged.

  A space 33 is formed on the inner wall between the suction port 6 and the dust container 24 in the cylindrical dust collection case 5 between the dust collection case 5 and the cylindrical filter 27 over the entire outer periphery of the filter 27. Is formed, and the inside of the dust collecting case 5 and the air inlet of the electric blower 21 communicate with each other through the space portion 33. Furthermore, the inner surface of the case upper portion 22a of the dust collecting case 5 and the inner surface of the first filtration filter 27a form one surface as a whole.

  As shown in FIG. 3D, the cylindrical filtration filter 27 has a cylindrical shape so as to surround the inside of the cylindrical dust collecting case 5. The first filtration filter 27a located upstream (inside) with respect to the suction airflow removes relatively large dust (coarse dust) such as cotton dust and hair from the dust in the suction airflow. is there. The second filtration filter 27b located on the downstream side (outside) of the first filtration filter 27a removes dust (fine dust) such as fine dust particles, pollen, mite feces, etc. from the airflow.

  The first filtration filter 27a is formed by bending a plate-like metal filter formed by etching a minute ventilation hole 30 having a hole diameter of 100 to 300 microns into a cylindrical shape, and at the joint of the bending process and at the upper and lower ends. The frame is integrally molded with resin.

  Nonwoven fabric, pulp, glass fiber, HEPA filter, or the like can be used for the second filtration filter 27b. In the first embodiment, a filter in which a PTFE film excellent in dust-removing properties is laminated on a nonwoven fabric is pleated, the folded shape members are connected and installed in a cylindrical shape, and a seam and upper and lower end frames Is integrally molded with resin. Then, in the outer periphery of the pleated filter, the recess on the inner surface of the pleated member corresponding to the upstream side of the suction airflow has a substantially U shape with a roundness of about R = 2 to 5 mm.

  The first filtration filter 27a and the second filtration filter 27b are held between the holding portion 34 of the dust collecting case 5 via an elastic and airtight cushioning material 35.

  About the vacuum cleaner of this Embodiment 1 comprised as mentioned above, based on FIG. 4 (a), FIG.4 (b), FIG.4 (c), it isolate | separates dust from dust-containing air and collects dust. The operation will be described.

  First, when the electric blower 21 starts to operate, a suction airflow is generated, and dust from the floor surface is sucked into the dust collection case 5 through the suction tool 9, the extension pipe 8, and the suction hose 7. At this time, since the suction port 6 of the dust collecting case 5 is installed eccentrically in the tangential direction with respect to the cylindrical cross section, as shown in FIG. It enters from the tangential direction of the cylindrical cross section of the case upper portion 22a of the case 5 and changes to a swirling airflow.

Since the lower end of the suction port 6 is disposed above the upper end of the opening 25, the airflow flowing from the suction port 6 has a swirling component and also has a downward component. Therefore, the swirling airflow generated in the case upper portion 22a of the dust collecting case 5 descends while swirling and reaches the vicinity of the cylindrical filtration filter 27. Then, as shown in FIG. 4B, a part of the air sequentially passes through the first filtration filter 27 a and the second filtration filter 27 b, and is sucked into the electric blower 21 through the space portion 33.

  The dust sucked together with the suction airflow is guided to the cylindrical filtration filter 27 while swirling with the flow of the airflow. Among the dust, coarse dust 51 such as hair and yarn dust is the first filtration filter 27a. The fine dust 52 such as sand dust passes through the first filtration filter 27a and is filtered out by the second filtration filter 27b on the outside. As shown in FIG. 4C, the dust-containing air swirling in the dust separation unit 23 and the container including the dust storage unit 24 is caused by the flow of the main air passage 29a and the sub air passage 29b. To be separated.

  Next, the dust removal mechanism of the first embodiment will be described in detail with reference to FIGS.

  As shown in FIGS. 5 to 7, the second filtration filter 27 b forms first frame pillars 54 along the plurality of pleated peaks between the upper end cover 52 and the lower end cover 53, respectively. The two filtration filters 27b and the plurality of first frame columns 54 are integrally formed. By integrally forming the filtration filter and the first frame column 54, the strength of the second filtration filter 27b is reinforced and the second filtration filter 27b can be prevented from breaking.

  As shown in FIG. 5, on the outer periphery of the second filtration filter 27b, a first dust remover 51 having an offset line shape is provided with a slight gap with respect to the filtration filter shape folded back in a pleated shape. The first dust remover 51 is formed so as to contact only the filter surface of the second filter 27b by providing a notch 61 so as not to contact the first frame column 54. Thus, when the first dust remover 51 is vibrated, the vibration of the first dust remover 51 is prevented from being attenuated by the first frame column 54.

  The first frame pillar 54 is provided with a holding rib 71 protruding in the radial direction. The first dust remover 51 is slidably held by the holding rib 71 so that the first dust remover 51 is assembled to the second filtration filter 27b. A part of the first dust remover 51 is provided with a storage part 56 that houses the vibrator motor 55, and a rib 72 that protrudes inward from four directions is provided inside the storage part 56. Thus, the lower position of the vibrator motor 55 is held. As a result, the vibration of the vibrator motor 55 itself can be increased.

  When the first dust remover 51 and the filter surface of the second filtration filter 27b are bonded with an adhesive and the first dust remover 51 and the second filtration filter 27b are integrated, the first dust remover The behavior of 51 is transmitted as it is to the second filtration filter 27b without being attenuated, and a good dust removing effect is obtained.

  As shown in FIG. 6, the first dust remover 51 forms a meat thinning 62 in which constituent materials are partially hollowed out. The given vibration energy can be prevented from being attenuated.

  Next, the second frame pillar 63 is arranged in four directions on the outer periphery of the first filtration filter 27a, and reinforces the strength of the first filtration filter 27a. The second frame pillar 63 has a plurality of holding ribs 73 protruding in the radial direction, and holds the ring-shaped second dust remover 57 so as to be slidable.

The ring-shaped second dust remover 57 is provided with a notch 64 at a position corresponding to the second frame column 63, and is not in contact with the second frame column 63 and partially on the filter surface. The second dust remover 57 and the first filtration filter 27a are assembled so as to be in contact with each other. Moreover, the vibration propagation part 65 is provided in several places on the outer periphery of the 2nd dust remover 57, and the vibration propagation part 65 is contact | abutting inside the 2nd filtration filter 27b. Thereby, the vibration propagation part 65 of the 2nd dust remover 57 and the 1st dust remover 51 can be contact | abutted via the 2nd filtration filter 27b, and the vibration energy of the vibrator motor 55 is reduced almost. It can be transmitted to the first filtration filter 27a without being attenuated.

  When the second dust remover 57 and the filter surface of the first filtration filter 27a are bonded with an adhesive and the second dust remover 57 and the first filtration filter 27a are integrated, the second dust removal dust 57 The behavior of the child 57 is easily transmitted to the first filtration filter 27a without being attenuated, and a good dust removing effect is obtained.

  Next, the dust removal operation for the first filtration filter 27a and the second filtration filter 27b will be described.

  The vibrator motor 55 has a weight 58 attached to a rotating shaft of a small motor having a diameter of about 5 mm and a total length of about 15 mm, and rotates the weight 58 at a high speed. The vibrator motor 55 rotates the eccentric weight 58 at a high speed at a rotational speed of 4000 to 20000 r / min, preferably 7000 to 12000 r / min, and causes the vibrator motor 55 itself to perform a circular motion or an elliptical motion, thereby generating a second The filter 27b is vibrated.

  In the present embodiment, since the vibrator motor 55 is assembled to one end of the ring-shaped first dust remover 51, when high-speed vibration of the vibrator motor 55 is propagated to the filter surface, the first dust remover 51. In this case, a vibration is generated with a portion that is substantially symmetrical with the attachment position of the vibrator motor 55 as a fulcrum, and a larger vibration can be applied to the filter surface of the second filtration filter 27b.

  The first dust remover 51 vibrates at a high speed at the number of rotations of the vibrator motor 55 so as to draw an arc trajectory in front, rear, left and right. At the moment when the movement direction of the second filtration filter 27b is switched by the vibration, the fine dust adhering to the filter surface does not change following the movement direction of the second filtration filter 27b due to inertia. Lifts off and peels off. As a result, dust adhering to the filter surface can be removed.

  Further, since the second filtration filter 27b is pleated and the shape of the first dust remover 51 is matched to the shape of the second filtration filter 27b, the dust remover is The filter surface can be vibrated reliably. Further, since the second filtration filter 27b has a substantially cylindrical shape and the first dust remover 51 has a ring shape, as described above, the front and rear, left and right vibrations contribute to each point of the second filtration filter 27b. And dust removal efficiency can be improved.

  And since the vibration propagation part 65 of the 2nd dust remover 57 attached to the 1st filtration filter 27a is fitting to the 2nd filtration filter 27b, it is with the vibration of the 2nd filtration filter 27b. The first filtration filter 27a also vibrates. For example, even if a part of fluff contained in coarse dust is caught on the ventilation hole 30 of the first filtration filter 27a and adheres to the filter surface on the surface of the first filtration filter 27a, the first filtration filter 27a is circular. It is possible to vibrate at high speed in the front-rear and left-right directions so as to draw the trajectory, and to shake off the coarse dust adhering to the filter surface of the first filtration filter 27a.

Further, when the electric blower 21 is being operated in the cleaning operation, if high-speed vibration is simultaneously performed by the vibrator motor 55, the dust-containing air passing through the vent hole 30 of the first filtration filter 27a from the suction port 6 is achieved. However, the flow in the direction perpendicular to the filter surface is high, and the ventilation hole 30 of the first filtration filter 27a moves at high speed in the left-right direction, so that the probability of dust passing through the ventilation hole 30 is reduced. The filtration performance of the filtration filter can be improved.

  Here, in the present embodiment, the first filtration filter 27a and the second filtration filter 27b are formed in a substantially cylindrical shape. However, the first filtration filter 27a and the second filtration filter 27b may be configured in a flat plate shape and vibrate from the vibrator motor to the filter surface. And an equivalent dust removing effect can be obtained.

(Second Embodiment)
FIG. 8 is a cross-sectional view showing the configuration of the dust remover in the second embodiment. In addition, about the structure which overlaps with Embodiment 1 mentioned above, the same code | symbol is described and description is abbreviate | omitted.

  As shown in the figure, a battery housing portion 82 is formed in the opening 25 in the dust collecting case 5, and a rechargeable battery 81 serving as a driving power source for the vibrator motor 55 is housed in the battery housing portion 82. A contact portion (not shown) for electrical contact with one contact portion (not shown) is provided. And when the dust collection case 5 is set to the cleaner main body 1, electric power is supplied from the cleaner main body 1 side via the contact part.

  While the dust collecting case 5 is installed in the cleaner body 1 and the cleaning work is being performed, the rechargeable battery 81 is charged with the electric power supplied from the cleaner body 1 side. After the cleaning work is completed, power is supplied from the cleaner body 1 to the vibrator motor 55 by the operation of the microcomputer in the cleaner body 1 or the switch operation of the cleaner, and the vibrator motor 55 is driven to perform filtration. Vibrate the filter and remove dust from the filter.

  Then, when the dust collection case 5 is removed from the cleaner body 1 for cleaning and cleaning the dust collection case 5, power is supplied from the rechargeable battery 81 to the vibrator motor 55 and filtered by the vibrator motor 55. The dust can be removed by vibrating the filter. For this reason, waste disposal and maintenance of the filtration filter are easy, and maintenance work can be performed without touching the filtration filter.

  Furthermore, if a switch (not shown) is added to the dust collecting case 5, the dust collecting case 5 can be operated according to the intention of the cleaning operator at the point where the dust collecting case 5 is removed from the cleaner body 1 and carried. If dust is left behind by automatic operation of a micro computer or the like, it can be added and removed by a cleaning operator's switch operation, which is convenient for the cleaning operator.

  As described above, according to the present invention, dust adhering to the filter surface can be efficiently removed, and the burden of maintenance work such as cleaning of the filter and discharging of dust can be reduced. It can be used not only for vacuum cleaners but also for various types of vacuum cleaners such as commercial vacuum cleaners.

5 Dust Collection Case 21 Electric Blower 27a First Filtration Filter 27b Second Filtration Filter 55 Vibrator Motor 65 Vibration Propagation Unit 81 Rechargeable Battery

Claims (11)

An electric blower for generating suction air for sucking dust, a filtration filter for filtering dust collected by the suction air, a dust collection case for storing dust filtered by the filtration filter, and a filter filter A vacuum cleaner provided with a dust removal mechanism for removing dust adhering to a filter surface, wherein the dust removal mechanism is vibrated by a vibrator motor. 2. The electric vacuum cleaner according to claim 1, wherein the dust removing mechanism comprises a dust remover and a vibrator motor held by the dust remover. (Original claim 4)
The vacuum cleaner according to claim 3, wherein the dust remover is formed integrally with the filter. (Original claim 3)
The filtration filter has a frame column that reinforces its own strength on the filter surface,
The vacuum cleaner according to any one of claims 1 to 3, wherein the dust remover is not in contact with the frame column and is joined to a filter surface of a filtration filter. The vacuum cleaner according to claim 4, wherein the frame column holds the dust remover in a movable manner. The filtration filter is composed of a substantially cylindrical first filtration filter and a substantially cylindrical second filtration filter provided downstream of the first filtration filter,
The vacuum cleaner according to any one of claims 1 to 5, wherein the first dust remover has a ring shape that matches the outer peripheral shape of the second filtration filter. The vacuum cleaner according to claim 6, wherein the second filtration filter has a membrane filtration membrane in a pleated shape. The vacuum cleaner according to claim 6 or 7, wherein the first filtration filter has an infinite number of air holes of about 100 to 300 µm formed in a metal plate or a resin plate. A second dust remover having a vibration propagation part is attached to the outer periphery of the first filtration filter, the vibration propagation part is brought into contact with the inner surface of the second filtration filter, and the first dust removal element and the second dust removal element The vacuum cleaner of any one of Claims 6-8 connected with said 2nd filtration filter. The electric vacuum cleaner according to any one of claims 1 to 9, wherein the vibrator motor operates even during the suction operation of the electric blower. The vacuum cleaner of any one of Claims 1-10 provided with the dust removal mechanism and the rechargeable battery which drives the dust removal mechanism in the same dust collection case.