JPWO2018047367A1 - Air cleaner - Google Patents

Abstract

To provide an air cleaner capable of reducing the manufacturing cost. A housing 2 opening the suction port 3 and the blowout ports 4, an air passage 8 connecting the suction port 3 and the blowout ports 4 and 5, a blower 10 disposed in the air passage 8, a suction port 3 In the air cleaner 1 provided with the pre-filter 6 disposed facing the surface and the cleaning device 30 for cleaning the pre-filter 6, the cleaning device 30 comprises a supply roll 40 on which the sheet-like pre-filter 6 is wound; A take-up roll 50 for taking up the pre-filter 6, a drive motor 100 for driving the take-up roll 50 to rotate, and a drive motor 100 to rotate when the take-up roll 50 rotates. And a brush body 80 sliding on the filter 6.

Description

  The present invention relates to an air cleaner provided with a cleaning device for cleaning a filter.

  Patent Document 1 discloses a conventional air cleaner. This air purifier has a housing that opens an inlet and an outlet. An air passage connecting the suction port and the blowout port is provided in the housing, and a blower is disposed in the air passage. A pre-filter (filter) is disposed facing the suction port.

  In the air cleaner having the above configuration, when the operation is started, the blower is driven and air in the room is sucked from the suction port. Air sucked from the suction port is sent out from the blowout port after dust is collected by the prefilter. Thus, air can be cleaned in the room.

  In recent years, the demand for an air cleaner equipped with a cleaning device for cleaning a prefilter has been heightened. Patent Document 2 discloses a cleaning device for cleaning a filter disposed facing an air inlet of a projector. The cleaning device includes a supply roll, a take-up roll, a brush body, a supply roll motor, a take-up roll motor, a brush body motor, and a dust collection box.

  A sheet-like filter is wound around the supply roll. The take-up roll is rotated by the drive of a take-up roll motor to take up the filter drawn from the supply roll. The brush body radially forms brush hairs on the shaft body, and when the winding roll rotates, it is rotated by the drive of the brush body motor, and the brush hairs rub the filter to remove dust. The dust collection box collects dust removed from the filter by the brush body. The feed roll is rotationally driven by a feed roll motor, and unwinds the filter wound on the take-up roll. This removes dust on the filter and cleans the filter.

JP, 2009-66466, A (page 8, page 9, FIG. 1) Patent No. 5627066 (page 6, page 7, FIG. 1, FIG. 4)

  However, according to the cleaning device of Patent Document 2, the brush body motor is provided separately from the winding roll motor. For this reason, the number of parts of the cleaning device increases, and when the cleaning device is provided in the air cleaner, there is a problem that the manufacturing cost of the air cleaner increases.

  An object of the present invention is to provide an air cleaner that can reduce the manufacturing cost.

In order to achieve the above object, the present invention provides a housing which opens an inlet and an outlet, an air passage connecting the inlet and the outlet, a blower disposed in the air passage, and An air cleaner comprising: a filter disposed facing the suction port; and a cleaning device for cleaning the filter,
The cleaning device comprises a supply roll around which the sheet-like filter is wound, a take-up roll for winding the filter, a drive motor for driving the take-up roll to rotate, and the drive motor connected to the drive motor. And a brush body which rotates when the roll rotates and slides on the filter on the winding roll.

  In the air cleaner according to the present invention, it is preferable that the rotation direction of the winding roll and the rotation direction of the brush body be the same.

  Further, according to the present invention, in the air cleaner having the above configuration, the brush bristles are helically implanted at predetermined intervals on the circumferential surface of the shaft supported by the housing, and the circumferential velocity of the brush is It is preferable that the peripheral speed of the winding roll is larger.

  Further, according to the present invention, in the air cleaner having the above-described configuration, the housing includes a main body portion in which the blower is disposed, and a cover portion which is detachably disposed to the main body portion and in which the suction port is opened. Preferably, the drive motor is disposed in the main body portion and the supply roll and the winding roll are disposed in the cover portion.

  Further, according to the present invention, in the air cleaner having the above configuration, a first cross shaft gear having a fitting hole fitted to the rotation shaft of the drive motor, and a second cross shaft gear meshing with the first cross shaft gear. A first parallel shaft gear that rotates integrally with the second cross shaft gear and is connected to the take-up roll, and a second parallel shaft that meshes with the first parallel shaft gear and is connected to the brush body Preferably, a gear is provided.

  Further, according to the present invention, in the air cleaner having the above configuration, an internal gear integrally provided with the second parallel shaft gear between the brush body and the second parallel shaft gear, and an internal gear meshed with the internal gear. Preferably, a three parallel shaft gear is provided, and the rotation axis of the brush body is disposed between the rotation axis of the first parallel shaft gear and the rotation axis of the second parallel shaft gear.

  Further, according to the present invention, in the air cleaner having the above-described configuration, a ventilating portion in which the filter is disposed facing the suction port when the cleaning device is stopped, and a storage portion delivered from the supply roll when the cleaning device is driven. , And it is preferable to provide a symbol visible on the suction port, distinguishable from the ventilation part, on the storage part.

  Further, according to the present invention, in the air cleaner having the above-described configuration, it is preferable to stop the blower when the cleaning device is driven.

  According to the present invention, the brush body of the cleaning device is connected to a drive motor that rotationally drives the winding roll, and rotates as the winding roll rotates and slides on the filter on the winding roll. As a result, it is not necessary to provide the motor for the brush body of the conventional example for rotating the brush body separately from the drive motor. Therefore, the manufacturing cost of the air purifier can be reduced.

Front view showing an air cleaner according to a first embodiment of the present invention Side surface sectional view showing an air cleaner of a first embodiment of the present invention The disassembled perspective view which shows the cleaning apparatus of the air cleaner of 1st Embodiment of this invention The top view which shows the prefilter of the air cleaner of 1st Embodiment of this invention. Side cross-sectional view of the supply roll of the cleaning device for an air purifier according to the first embodiment of the present invention The perspective view which shows the inside of the winding roll of the cleaning apparatus of the air cleaner of 1st Embodiment of this invention, a dust collection part, and a gear unit An enlarged perspective view of the inside of the gear unit of the cleaning device for an air purifier according to the first embodiment of the present invention The disassembled perspective view of the urging | biasing part of the cleaning apparatus of the air cleaner of 1st Embodiment of this invention Side view of the support member of the cover portion of the air purifier according to the second embodiment of the present invention before the supply roll is attached Side view of the support member of the cover portion of the air cleaner according to the second embodiment of the present invention after the supply roll is attached The side view before the supply roll of the support member of the cover part of the air cleaner of a 3rd embodiment of the present invention is attached Side view of the support member of the cover portion of the air purifier according to the third embodiment of the present invention after the supply roll is attached The top view of the prefilter of the air cleaner of 4th Embodiment of this invention The perspective view of the pressing member of the air cleaner of a 5th embodiment of the present invention

First Embodiment
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG.1 and FIG.2 has shown the front view and side surface sectional drawing of the air cleaner of 1st Embodiment. Arrow S indicates the flow of air. The air cleaner 1 has a housing 2 which is installed on a floor surface or the like in a living room by opening the suction port 3 and the blowout ports 4 and 5. The housing 2 has a main body 20 and a cover 21. The cover 21 is detachably disposed on the rear surface of the main body 20 and opens the suction port 3. The main body 20 opens the outlets 4 and 5 at the upper front and the upper surface, respectively.

  The wind direction plates 14 and 15 which change a wind direction are provided in the blower outlets 4 and 5, respectively. The wind direction plate 14 is formed of a flat plate, and is rotatably supported in the vertical direction by a rotation shaft (not shown) provided on the wind direction plate 14. On the lower surface of the wind direction plate 14, a plurality of vertical louvers 14a are vertically provided side by side in the left-right direction. The longitudinal louvers 14a at both ends are inclined outward in the left-right direction toward the front.

  The wind direction plate 15 is formed of a flat plate, and is rotatably supported in the vertical direction by a pivot shaft portion 15 b provided at the front of the wind direction plate 15. On the lower surface of the wind direction plate 15, a plurality of vertical louvers 15a are vertically provided side by side in the left-right direction. The vertical louvers 15a at both ends are inclined outward in the left-right direction toward the rear.

  The wind direction plates 14 and 15 close the outlets 4 and 5 when the air cleaner 1 is shut down, and open the outlets 4 and 5 during operation.

  An air passage 8 is provided in the housing 2 to connect the inlet 3 and the outlets 4, 5. The pre-filter 6 (filter), the deodorizing filter 7, the dust collection filter 9, the humidifying unit 200, and the blower are sequentially arranged in the air passage 8 from the suction port 3 toward the outlets 4 and 5 (from upstream to downstream of the air flow). 10, an ion generator 11 and a damper 12 are provided.

  The air passage 8 has a first branch passage 8 a and a second branch passage 8 b branched downstream of the ion generator 11. The first branch passage 8a and the second branch passage 8b communicate with the outlets 4 and 5, respectively, and the cross-sectional area of the air flow passage of the first branch passage 8a is the cross-sectional area of the air flow passage of the second branch passage 8b. Is also getting smaller.

  The damper 12 is formed in a thin plate shape, and is rotatably supported in the vertical direction by the rotation shaft portion 12a. The damper 12 can be pivoted in a direction (counterclockwise direction in FIG. 2) opening from the closed position (see FIG. 2) of the first branch passage 8a. The damper 12 changes the air volume balance of the first branch passage 8a and the second branch passage 8b.

  The blower 10 is formed by a centrifugal fan such as a sirocco fan driven by a motor 10a, and axially sucks in and exhausts in the circumferential direction.

  The prefilter 6 is formed of a sheet-like mesh of polypropylene or the like, and is disposed on the cover portion 21 so as to face the suction port 3. The prefilter 6 can collect large dust in intake air.

  The deodorizing filter 7 is formed in a honeycomb shape, and can adsorb odor components in the air to deodorize the air.

  The dust collection filter 9 is a HEPA filter, and a frame material (not shown) is welded by hot melt so as to cover the filter material (not shown). The dust collection filter 9 can collect fine dust in the air and fine particles such as PM 2.5 having a particle size smaller than a predetermined particle size (for example, 3 μm).

  The humidifying unit 200 immerses the lower part of the humidifying filter 202 in the water in the tray 201 to humidify the air passing through the humidifying filter 202. Thus, the humidified air is delivered from the outlets 4 and 5.

The ion generator 11 has an ion generating surface 11 a that generates ions by application of a high voltage, and the ion generating surface 11 a faces the inside of the air passage 8. A voltage consisting of an AC waveform or an impulse waveform is applied to the ion generation surface 11a. It generates positive ions consisting mainly ^H + _(H 2 O) m when the applied voltage of the ion generating surface 11a is a positive voltage, primarily in the case of negative voltage _O ² - negative ions consisting of _(H 2 O) n Occur. Here, m and n are integers. H ⁺ _(H 2 O) m and _{^{O 2 - (H 2 O)}} n surrounds these aggregated on the surface of airborne bacteria and odorous components in the air.

Then, as shown in the formulas (1) to (3), by collision, [· OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) which are active species are aggregated and formed on the surface of a microorganism or the like. Destroy floating bacteria etc. Here, m 'and n' are integers. Therefore, sterilization and odor removal can be performed in the living room by generating positive ions and negative ions and delivering them from the outlets 4 and 5.

_{^{H + (H 2 O) m}} + O 2 - (H 2 O) n → · OH + 1 / 2O 2 + (m + n) H 2 O ··· (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 · OH + O ₂ + (m + m '+ n + n') H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m '+ n + n') H ₂ O (3)

  An operation unit 19 is provided on the upper front of the main body unit 20. The operation unit 19 has a plurality of buttons (not shown) and performs operation setting of the air purifier 1 by the operation of the user. By the operation of each button, it is possible to change the air volume of the air delivered from the outlets 4 and 5, change the blowing direction of the air, and the like.

  In addition, the cover unit 21 is provided with a cleaning device 30 for cleaning the pre-filter 6. FIG. 3 shows an exploded perspective view of the cleaning device 30. As shown in FIG. The cleaning device 30 has a supply roll 40, a winding roll 50, a gear unit 60, a biasing unit 70, a brush body 80, a dust collection unit 90, and a drive motor 100 (see FIG. 2).

  The supply roll 40 and the winding roll 50 are respectively disposed at the upper and lower portions of the cover portion 21 and hold both ends of the pre-filter 6. The pre-filter 6 is wound around the supply roll 40 when the cleaning device 30 is stopped, is fed from the supply roll 40 when the cleaning device 30 is driven, and is wound around the winding roll 50.

  The supply roll 40 has a shaft 41 extending in the left-right direction, and caps 48 are fitted on both ends of the shaft 41. The cap 48 is rotatably supported by a support member 49 disposed at the upper end of the inner surface of the cover portion 21. As a result, the supply roll 40 is rotatably disposed on a rotational shaft extending in the left-right direction. Further, one end (right end) of the supply roll 40 is connected to the biasing unit 70 via the cap 48.

  The winding roll 50 has a shaft 51 extending in the left-right direction, and caps 58 are fitted on both ends of the shaft 51. The left and right caps 58 are rotatably supported by a support member 59 and a gear unit 60 disposed at the lower end portion of the inner surface of the cover portion 21. Thus, the take-up roll 50 is rotatably disposed on a rotational shaft extending in the left-right direction.

  FIG. 4 shows a plan view of the pre-filter 6. The pre-filter 6 has bar members 6 a that extend in the left-right direction at both ends in the winding direction W and are held by the supply roll 40 and the winding roll 50. Further, the pre-filter 6 has a ventilation portion 6 b disposed facing the suction port 3 when the cleaning device 30 is stopped, and a storage portion 6 c delivered from the supply roll 40 when the cleaning device 30 is driven.

  A symbol 6g is provided on the storage portion 6c so as to be visible from the suction port 3 in distinction from the ventilation portion 6b. In the present embodiment, a red character "using cleaning" is used as the pattern 6g. In addition, there is no limitation in particular in the pattern 6g, For example, the stripe pattern etc. of a different color from the ventilation | gas_flowing part 6b may be sufficient.

  FIG. 5 shows a side cross-sectional view of the supply roll 40. In addition, since the configuration of the winding roll 50 is the same as that of the supply roll 40, the supply roll 40 will be representatively described. The shaft 41 forming the shaft portion of the supply roll 40 has a core 41 a and a sleeve 41 d.

  The core member 41a is made of an extruded product of a metal such as aluminum having a C-shaped cross section, and has a groove 41b extending in the axial direction on the circumferential surface. The opposing inner wall surface 41c of the groove 41b is inclined, and the circumferential width of the groove 41b is wider on the outer peripheral side than on the inner peripheral side. The circumferential surface of the bar 6a of the pre-filter 6 is supported by the inner wall surface 41c of the groove 41b.

  The sleeve 41d is formed of a resin molded product having a C-shaped cross section having an opening 41e extending in the axial direction, and is externally fitted to the core 41a. The prefilter 6 supporting the bar material 6a on the groove 41b is inserted into the opening 41e. The width of the opening 41e of the sleeve 41d is smaller than the diameter of the bar 6a, and the bar 6a supported by the core 41a is prevented from coming off. At this time, both end portions in the circumferential direction of the sleeve 41d elastically press the bar material 6a, and the bar material 6a is elastically held by the groove 41b of the core material 41a and the sleeve 41d.

  Further, when a force is applied in a direction (left and right direction in FIG. 5) in which the opening 41e of the sleeve 41d is expanded, the sleeve 41d is elastically deformed. The bar material 6a of the pre-filter 6 can be attached to and detached from the shaft 41 through the expanded opening 41e. Similarly, the bar material 6 a at the lower end portion of the prefilter 6 can be attached to and detached from the shaft 51. As a result, the prefilter 6 can be easily removed from the cleaning device 30, and replacement of the prefilter 6 can be performed.

  In FIG. 3, the brush body 80 is disposed in the dust collection unit 90 detachably attached to the cover unit 21. The brush body 80 has shafts 81 supported at both ends in the axial direction by the dust collection unit 90, and rotates when the cleaning device 30 is driven to remove dust on the pre-filter 6 as described later. A spur gear 68 is provided at one end (right end) of the shaft 81, and on the circumferential surface of the shaft 81, bristle bristles 82 are implanted in a spiral at a predetermined interval.

  The dust collection unit 90 includes a lid 91, a container 92, and a comb unit 93, and is detachably attached to the cover 21. The container 92 is formed of a transparent resin, has an upper surface opened, and supports the brush body 80 on both sides. The lid 91 opens an opening 91 a that opens over the left and right ends, and covers the top surface of the container 92. The brush bristles 82 of the brush body 80 are exposed to the outside from the opening 91 a. The comb portion 93 is formed to extend in the left-right direction, and disposed in the container 92 with the tip of the comb directed upward. The brush bristles 82 of the rotating brush body 80 abut on the tips of the combs 93. The dust attached to the brush hair bundle 82 is removed from the brush hair bundle 82 by the comb unit 93.

  The dust removed from the pre-filter 6 by the brush body 80 and the dust removed from the brush body 80 by the comb unit 93 are accumulated in the container 92. At this time, since the container 92 is formed of a transparent resin, the user can easily grasp the amount of dust in the container 92.

  The drive motor 100 (see FIG. 2) is disposed in the main body 20 of the housing 2, and the rotation shaft (not shown) of the drive motor 100 protrudes rearward from the back of the main body 20.

  In addition, a pressing member 22 is disposed in front of the pre-filter 6 with a predetermined gap. The pressing member 22 is detachably attached to the cover 21. The pressing member 22 has a rectangular frame 22a formed of a synthetic resin such as ABS. In the frame 22a, a rib 22b extending in the vertical direction and a plurality of (three in the present embodiment) ribs 22c extending in the lateral direction and juxtaposed in the vertical direction are provided. Thus, the pressing member 22 has a plurality of stages of windows. The prefilter 6 can be stably disposed along the suction port 3 by the pressing member 22, and the slack of the prefilter 6 due to the suction air flow can be prevented.

  A magnet 23 is provided at the center of the right end of the frame 22 a of the pressing member 22. A Hall element (not shown) is provided at a position facing the magnet 23 of the main body 20. The air purifier 1 can determine whether the cover 21 is attached to the main body 20 by using a hall element. Then, when it is determined that the cover 21 is not attached to the main body 20, the air cleaner 1 prohibits the operation of the blower 10. Thus, the air blowing operation of the air purifier 1 in a state in which the cover portion 21 is not attached to the main body portion 20 is avoided.

  The gear unit 60 and the biasing unit 70 are disposed at one end (right end) of the cover 21. Therefore, a space SP is formed between the gear unit 60 and the biasing portion 70 on the inner surface of the cover portion 21. On the space SP, a tape-like member 300 is attached, which describes information on the handling of the air cleaner 1. The above information includes information on how to remove the prefilter 6 from the cleaning device 30 and information on how to operate the handle 73 of the biasing unit 70 described later.

  Thereby, the user visually recognizes the above information when removing the cover portion 21 from the main body portion 20, and facilitates the method of removing the pre-filter 6 from the cleaning device 30 and the operation method of the handle 73 of the biasing portion 70. It can be recognized. Therefore, the convenience of the air cleaner 1 can be improved.

  FIG. 6 is a perspective view showing the inside of the winding roll 50, the dust collection unit 90, and the gear unit 60 of the cleaning device 30. As shown in FIG. FIG. 7 is an enlarged perspective view of the inside of the gear unit 60. As shown in FIG. The gear unit 60 includes a bevel gear 61 (first cross axis gear), a bevel gear 62 (second cross axis gear), a spur gear 63 (first parallel axis gear), a spur gear 64 (second parallel axis gear), A gear 65, a spur gear 66 and a spur gear 67 are provided in a housing 60a (see FIG. 3). The housing 60a is screwed to the cover 21 (see FIG. 3).

  The bevel gear 61 is axially arranged in the front-rear direction, and has a fitting hole 61a on the shaft for fitting to the rotation shaft (not shown) of the drive motor 100 (see FIG. 2). The bevel gear 62 is disposed in the left-right direction in the axial direction, and meshes with the bevel gear 61. The spur gear 63 is integrally formed concentrically with the bevel gear 62.

  The shaft portion 63a of the spur gear 63 has a fitting hole (not shown) in which the convex portion 58a (see FIG. 3) of the cap 58 is fitted. Thereby, the spur gear 63 and the bevel gear 62 are connected to the winding roll 50.

  The spur gear 64 is disposed below the spur gear 63 and meshes with the spur gear 63. The internal gear 65 is provided integrally with the spur gear 64. The spur gear 66 meshes with the internal gear 65. The spur gear 67 is integrally formed concentrically with the spur gear 66. A spur gear 68 provided at one end of the brush body 80 meshes with the spur gear 67.

  The drive of the drive motor 100 causes the take-up roll 50 to rotate via the bevel gear 61 and the bevel gear 62. Further, the brush body 80 is rotated via the spur gear 64, the internal gear 65, the spur gear 66, the spur gear 67, and the spur gear 68 by the rotation of the spur gear 63 integrated with the bevel gear 62. Since the spur gear 63 integrated with the bevel gear 62 meshes with the spur gear 64 connected to the brush body 80, the brush body 80 disposed parallel to the winding roll 50 can be easily rotated.

  At this time, since the internal gear 65 integral with the spur gear 64 is provided, the spur gear 68 on the rotation shaft of the brush body 80 is placed between the rotation shaft (shaft portion 63 a) of the spur gear 63 and the rotation shaft of the spur gear 64. Can be placed. Thereby, the brush body 80 sliding on the pre-filter 6 on the winding roll 50 can be easily disposed close to the winding roll 50.

  The bevel gears 61 and 62 may be cross-axis gears. Further, each spur gear may be a parallel shaft gear, and a helical gear or the like may be used.

  FIG. 8 shows an exploded perspective view of the biasing portion 70 of the cleaning device 30. As shown in FIG. The biasing unit 70 has a rotary body 71 (first rotary body) and a rotary body 72 (second rotary body) housed in the housings 78 and 79 screwed to each other. The holding portion 71a is provided so as to protrude from one end surface of the rotating body 71 in the axial direction, and the groove portion 71b is provided on the other end surface. The locking portion 48a provided on the cap 48 is fitted in the groove 71b. As a result, the rotating body 71 locks the shaft portion of the supply roll 40, and the supply roll 40 is connected to the urging portion 70.

  The rotating body 72 houses the spring 75 inside of the rotating body 71 side. One end (inner end) of the spring 75 is held by the holding portion 71 a of the rotating body 71, and the other end (outer end) is mounted on the inner circumferential surface of the rotating body 72. When the rotating body 71 rotates clockwise with respect to the rotating body 72 as viewed from the right side (as viewed in the direction of arrow A), the biasing force of the spring 75 increases. That is, when the rotating body 72 rotates clockwise with respect to the rotating body 71 as viewed in the arrow A direction, the biasing force of the spring 75 decreases.

  A plurality of claws 72 a are provided at predetermined intervals on the outer peripheral surface on the outer side (right side) in the axial direction of the rotating body 72. A stopper 77 is pivotally supported in the housing 78, and the stopper 77 is biased by a torsion coil spring 77a in a direction to press the rotating body 72. As a result, the rotation of the rotary body 72 is restricted by the engagement between the stopper 77 and the claw 72a in the clockwise direction which reduces the biasing force of the spring 75 as viewed in the direction of arrow A.

  An opening 78a is opened on the right side surface of the housing 78, and a cylindrical handle 73 is disposed to cover the opening 78a. In the housing 78, a flange portion 73a having a diameter larger than that of the opening 78a is disposed. The handle 73 and the collar 73a are screwed to the outer wall of the housing 78 with a predetermined gap in the axial direction via the opening 78a. Thereby, the handle 73 is rotatably attached to the housing 78.

  In the housing 78, the connecting member 74 is disposed on the inner side (left side) in the axial direction of the collar portion 73a. A compression spring 76 is disposed between the rotating body 72 and the connecting member 74, and the connecting member 74 is biased outward in the axial direction (right side). A plurality of notches 74 c are formed on the circumferential surface of the connecting member 74 at predetermined intervals. A plurality of radially extending ribs 72c fitted to the notches 74c are formed at the axial outer end of the rotating body 72. Thus, the connecting member 74 rotates integrally with the rotating body 72.

  The connecting member 74 is formed to have a larger diameter than the collar 73 a and the opening 78 a. A plurality of inclined portions 74 a and a plurality of ribs 74 b are provided at predetermined intervals on the surface on the outer side (right side) in the axial direction of the connecting member 74. The inclined portion 74a is formed gradually higher in the counterclockwise direction as viewed in the arrow A direction. The ribs 74b extend radially adjacent to the top of the sloped portion 74a and are formed higher than the top.

  Further, a plurality of radially extending ribs 73b engaged with the ribs 74b are provided on the inner surface (left side surface) in the axial direction of the collar portion 73a. The inner wall surface of the housing 78 is provided with a projection (not shown) engaged with the rib 74b.

  When the handle 73 is rotated clockwise as viewed in the direction of arrow A, the rib 74 b engages with the rib 73 b and engages with the projection of the housing 78. Thus, the rotation of the handle 73 is restricted.

  On the other hand, when the handle 73 is rotated counterclockwise as viewed in the direction of arrow A, the rib 73b slides on the inclined portion 74a. Therefore, the connecting member 74 moves axially inward against the biasing force of the compression spring 76, and the rib 74 b is axially separated from the projection of the housing 78. Thereby, the handle 73 can be rotated, and the rib 74 b is engaged with the rib 73 b to rotate the rotating body 72 in a direction to increase the biasing force of the spring 75. That is, the rotating body 72 is rotated by the handle 73.

  In the air cleaner 1 configured as described above, when the operation is started by the operation of the operation unit 19, it is determined whether the cover unit 21 is attached to the main unit 20 or not. If it is judged that the cover part 21 is attached to the main-body part 20, the air blower 10 and the ion generator 11 will be driven. Thus, the air in the room is sucked from the suction port 3 and flows through the air passage 8. At this time, large dust is collected in the air by the prefilter 6. In addition, air is deodorized by the deodorizing filter 7, and fine dust in the air and fine particles such as PM 2.5 are collected by the dust collection filter 9.

  And the ion which generate | occur | produced by the ion generator 11 is contained in air. Air containing ions is blown out of one or both of the outlets 4 and 5 into the room. Thereby, the air blowing operation of the air cleaner 1 is performed, and the air cleaning of the living room is performed.

  Next, the operation of the cleaning device 30 will be described. At a predetermined time, the cleaning device 30 is driven and the cleaning operation by the cleaning device 30 is started. The cleaning operation is started, for example, when the cumulative operation time of the air purifier 1 within a predetermined period exceeds a predetermined time. The blower 10 is stopped when the cleaning device 30 is driven.

  When the cleaning device 30 is driven, the drive motor 100 rotates, and the bevel gear 61 (see FIGS. 6 and 7) rotates counterclockwise as viewed from the front. The bevel gear 62 and the spur gear 63 rotate clockwise as viewed from the right side (as viewed in the direction of arrow A). As a result, the winding roll 50 rotates clockwise as viewed from the right side, and the prefilter 6 is pulled out from the supply roll 40 and wound up.

  The spur gear 64, the internal gear 65, the spur gear 66 and the spur gear 67 rotate counterclockwise as viewed from the right side, and the spur gear 68 rotates clockwise as viewed from the right side. Thereby, the brush body 80 rotates clockwise as viewed from the right side. At this time, the brush bristles 82 of the brush body 80 slide on the prefilter 6 on the winding roll 50. Thereby, the dust on the pre-filter 6 is removed, and the dust is collected in the container 92.

  At this time, the rotation direction of the winding roll 50 and the rotation direction of the brush body 80 are the same. For this reason, the brush bristles 82 of the brush body 80 slide on the pre-filter 6 from the direction opposite to the traveling direction of the pre-filter 6. Therefore, the brush body 80 can reliably remove dust on the pre-filter 6.

  Further, it is desirable that the circumferential speed of the brush body 80 be larger than the circumferential speed of the winding roll 50. As a result, the contact length of the bristle bundle 82 in the circumferential direction on the pre-filter 6 can be made longer than the contact period of the bristle bundle 82 and the bristle bundle 82 can be brought into contact with the pre-filter 6 without any gap. .

  The bristle tufts 82 on the rotating shaft 81 are combed by the comb section 93, and the dust adhering to the bristle tufts 82 falls into the container 92.

  When the pre-filter 6 is taken up by the take-up roll 50, the rotating body 71 (see FIG. 8) of the biasing unit 70 connected to the supply roll 40 is viewed clockwise from the right side (viewed from the arrow A direction) To rotate. As a result, the mainspring 75 is wound, and the biasing force of the mainspring 75 is increased.

  At this time, the symbol 6g (see FIG. 4) on the storage portion 6c of the prefilter 6 moves downward and is visually recognized through the suction port 3. Thereby, the user can easily recognize that the cleaning device 30 is in operation. For this reason, it can prevent that a user misunderstands that the fan 10 stopped by failure. The blower 10 may be operated at low speed when the cleaning device 30 is driven.

  When the amount of rotation of the drive motor 100 reaches a predetermined value, the drive motor 100 is reversed. As a result, the bevel gear 61 rotates in the opposite direction (clockwise in this embodiment) to that at the time of winding. At this time, the winding roll 50 and the brush body 80 rotate counterclockwise as viewed from the right side.

  When the winding of the pre-filter 6 by the winding roll 50 is finished, the biasing force of the spring 75 is larger than that before the winding. For this reason, when the drive motor 100 is reversed, the rotating body 71 rotates counterclockwise as viewed from the right side surface by the restoring force of the spring 75. Thus, the prefilter 6 is wound around the supply roll 40.

  When the amount of rotation of the drive motor 100 reaches a predetermined value, the drive motor 100 is stopped. Thus, the cleaning operation by the cleaning device 30 is completed.

  A sensor for detecting the outer diameter of the winding roll 50 may be provided. As a result, it is possible to reverse the drive motor 100 by detecting that the outer diameter of the winding roll 50 in a state in which the pre-filter 6 has been wound is larger than the predetermined outer diameter. Further, it is possible to stop the drive motor 100 by detecting that the outer diameter of the winding roll 50 has become smaller than a predetermined outer diameter.

  After the cleaning operation by the cleaning device 30 is completed, the user can remove the dust collection unit 90 from the cover unit 21 and discard the dust accumulated in the container 92.

  Further, at the time of replacement of the prefilter 6, the supply roll 40 to which one end of the prefilter 6 is attached is attached to the cover portion 21. Then, the lower end of the prefilter 6 is attached to the winding roll 50.

  At this time, slack may occur in the pre-filter 6 between the supply roll 40 and the winding roll 50. In this case, when the user turns the handle 73 of the biasing unit 70 counterclockwise as viewed from the right side (as viewed from the direction of arrow A), the rotating bodies 71 and 72 rotate counterclockwise as viewed from the right side. Do. As a result, the prefilter 6 is wound around the supply roll 40, and the slack of the prefilter 6 can be eliminated. Therefore, when the blower 10 is driven, air sucked from the suction port 3 can reliably pass through the pre-filter 6.

  According to the present embodiment, the brush body 80 is connected to the drive motor 100 that rotationally drives the winding roll 50, and rotates when the winding roll 50 rotates and slides on the pre-filter 6 (filter) on the winding roll 50. Do. As a result, it is not necessary to separately provide the drive motor 100 and the conventional brush body motor for rotating the brush body 80. Therefore, the manufacturing cost of the air cleaner 1 can be reduced.

  Further, the rotation direction of the winding roll 50 and the rotation direction of the brush body 80 are the same. Thereby, the brush body 80 slides on the pre-filter 6 from the direction opposite to the advancing direction of the pre-filter 6. Therefore, the brush body 80 can reliably remove dust on the pre-filter 6.

  Further, it is desirable that the circumferential speed of the brush body 80 be larger than the circumferential speed of the winding roll 50. As a result, the contact length of the bristle bundle 82 in the circumferential direction on the pre-filter 6 can be made longer than the contact period of the bristle bundle 82 and the bristle bundle 82 can be brought into contact with the pre-filter 6 without any gap. . Therefore, dust on the pre-filter 6 can be more reliably removed.

  Further, the drive motor 100 is disposed in the main body portion 20 of the housing 2, and the supply roll 40 and the winding roll 50 are disposed in the cover portion 21. Thereby, the cover part 21 can be removed from the main-body part 20, and the prefilter 6 can be replaced | exchanged easily. Although the air cleaner 1 includes the cleaning device 30, the pre-filter 6 may be clogged depending on the installation location of the air cleaner 1 (for example, a place with many oil stains, such as a kitchen). . Even in this case, the pre-filter 6 can be easily removed and carefully cleaned.

  Further, a bevel gear 61 (first cross axis gear) having a fitting hole 61a fitted to the rotation shaft of the drive motor 100, a bevel gear 62 (second cross axis gear) meshing with the bevel gear 61, and an umbrella A spur gear 63 (first parallel shaft gear) rotated integrally with the gear 62 and connected to the take-up roll 50, and a spur gear 64 meshed with the spur gear 63 and connected to the brush body 80 (second parallel shaft And a gear). Thereby, the rotation of the winding roll 50 and the brush body 80 by one drive motor 100 can be easily realized.

  Further, since the spur gear 63 connected to the winding roll 50 is disposed closer to the drive motor 100 than the spur gear 64 connected to the brush body 80, the damping of the driving force transmitted to the winding roll 50 is suppressed. it can. As a result, the winding roller 50 biased by the biasing unit 70 via the pre-filter 6 can be reliably rotationally driven by the drive motor 100 against the biasing force.

  Further, an internal gear 65 provided integrally with the spur gear 64 and a spur gear 66 (third parallel shaft gear) meshing with the internal gear 65 are provided between the brush body 80 and the spur gear 64, and the brush body 80 is provided. The rotation axis of the spur gear 63 is disposed between the rotation axis of the spur gear 63 and the rotation axis of the spur gear 64. Thereby, the brush body 80 sliding on the pre-filter 6 on the winding roll 50 can be easily disposed close to the winding roll 50.

  Further, the prefilter 6 has a vent portion 6 b disposed facing the suction port 3 when the cleaning device 30 is stopped, and a storage portion 6 c delivered from the supply roll 40 when the cleaning device 30 is driven. Then, on the storage portion 6c, a symbol 6g which can be visually recognized from the suction port 3 in distinction from the ventilation portion 6b is provided. Thereby, the movement of the pre-filter 6 can be easily visually recognized, and the user can easily recognize the cleaning of the pre-filter 6 by the cleaning device 30.

  Further, the blower 10 is stopped when the cleaning device 30 is driven. This makes it possible to prevent the dust immediately after being removed from the pre-filter 6 from being sucked to the downstream side of the pre-filter 6. Moreover, it can prevent that a user misunderstands that the fan 10 stopped by failure by the pattern 6g.

  Further, the biasing unit 70 of the cleaning device 30 has a spring 75 for biasing the rotation shaft of the supply roll 40 in the reverse direction of the winding direction when the prefilter 6 of the winding roll 50 is wound up. Thus, when the drive motor 100 is reversed after the winding of the winding roll 50 is finished, the prefilter 6 is wound around the supply roll 40 by the restoring force of the spring 75. Therefore, it is not necessary to provide a motor for rotating the supply roll 40 in the direction opposite to the winding direction W of the winding roll 50 separately from the drive motor 100. As a result, the manufacturing cost of the air cleaner 1 can be further reduced. In addition, since the spring 75 is used, the pre-filter 6 can be wound around the winding roll 50 at a long distance while being biased. Thereby, the degree of freedom in design of the size of the prefilter 6 can be enhanced.

  Further, the biasing portion 70 locks the shaft portion of the supply roll 40, and the rotating body 71 (first rotating body) to which one end of the spring 75 is attached and the other end of the spring 75 are attached. It has a rotating body 72 (second rotating body) whose rotation in the direction of reducing the force is restricted, and a handle 73 for rotating the rotating body 72. Thereby, when the supply roll 40 is attached to the cover portion 21 and the handle 73 is operated, the pre-filter 6 is wound in the reverse direction to the winding direction W. Therefore, the slack of the pre-filter 6 can be reduced and air containing dust can be reliably passed through the pre-filter 6.

  In addition, the biasing portion 70 includes a connecting member 74 disposed between the handle 73 and the rotating body 72 to restrict the rotation of the handle 73 in the direction of reducing the biasing force of the spring 75, and the connecting member 74 rotates. Rotate integrally with the body 72. Thereby, the rotation of the rotary body 72 in the direction of reducing the biasing force of the spring 75 can be reliably prevented.

  The shaft 41 of the supply roll 40 has a core 41a having a groove 41b, and a sleeve 41d made of an elastic body having a C-shaped cross section fitted around the core 41a, and the sleeve 41d and the groove 41b make the prefilter 6 Resiliently sandwich the bar material 6a. Thus, when the opening 41 e of the sleeve 41 d is expanded, the bar material 6 a can be easily removed from the shaft 41. Further, the sleeve 41d can prevent the bar material 6a from coming off the shaft 41. The same applies to the winding roll 50.

  Moreover, the core material 41a of the supply roll 40 consists of metals, and the sleeve 41d consists of a resin molded product. The same applies to the winding roll 50. Thereby, the bar material 6a can be easily attached to and detached from the shafts 41 and 51 while securing sufficient strength of the shafts 41 and 51.

Second Embodiment
Next, a second embodiment of the present invention will be described. FIG. 9 shows a side view of the support member of the cover portion of the air purifier according to this embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 8 described above are given the same reference numerals. In the present embodiment, the configuration of the support member 49 of the cover 21 is different from that of the first embodiment. The other parts are the same as in the first embodiment.

  At the front end portion of the support member 49 (see FIG. 3) on the right side of the supply roll 40 of the cover portion 21, a rotation plate 400 made of resin is provided which rotates in the vertical direction. The shaft portion 401 of the pivoting plate 400 is disposed more rearward than the center of the pivoting plate 400 in the front-rear direction. Thereby, as shown in FIG. 9, when the supply roll 40 is not attached on the support member 49, the front end portion of the rotating plate 400 projects more forward than the support member 49. Therefore, if the cover 21 is attached to the main body 20 in a state where the supply roll 40 is not attached to the cover 21, the front end of the rotating plate 400 interferes with the main body 20. Therefore, it is possible to easily prevent the attachment roll of the supply roll 40 from being attached to the cover portion 21.

  On the other hand, as shown in FIG. 10, when the supply roll 40 is mounted on the support member 49, the supply roll 40 collides with the rear end portion of the rotation plate 400, and the rotation plate 400 rotates upward. As a result, the front end portion of the pivot plate 400 retracts rearward, and when the cover portion 21 is attached to the main body portion 20, interference between the pivot plate 400 and the main body portion 20 is prevented.

  Also in this embodiment, the same effect as that of the first embodiment can be obtained.

Third Embodiment
Next, a third embodiment of the present invention will be described. FIG. 11 shows a side view of the support member of the cover portion of the air purifier according to the present embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 8 described above are given the same reference numerals. In the present embodiment, the configuration of the support member 49 of the cover 21 is different from that of the first embodiment. The other parts are the same as in the first embodiment.

  The support member 49 has a fixed portion 49a and a moving portion 49b. A spring 49 c is provided at the rear end of the moving portion 49 b, and one end of the spring 49 c is attached to the front surface of the cover portion 21. At this time, the front end portion of the moving portion 49b is configured to project more forward than the fixing portion 49a in a state in which the spring 49c is extended. Thereby, as shown in FIG. 11, when the supply roll 40 is not attached on the support member 49, the front end portion of the moving portion 49b protrudes more forward than the fixing portion 49a. Therefore, if the cover 21 is attached to the main body 20 in a state where the supply roll 40 is not attached to the cover 21, the front end of the moving part 49 b interferes with the main body 20. Therefore, it is possible to easily prevent the attachment roll of the supply roll 40 from being attached to the cover portion 21.

  On the other hand, as shown in FIG. 12, when the supply roll 40 is mounted on the support member 49, the supply roll 40 in contact with the fixed part 49a moves the moving part 49b rearward. As a result, the front end portion of the moving portion 49 b retracts rearward, and when the cover portion 21 is attached to the main body portion 20, interference between the moving portion 49 b and the main body portion 20 is prevented.

  Also in this embodiment, the same effect as that of the first embodiment can be obtained.

  In the second and third embodiments, a photo interrupter (not shown) may be provided in place of the magnet 23 and the Hall element of the first embodiment. The photo interrupter has a light emitting unit and a light receiving unit facing each other. When the light receiving portion detects that the light traveling from the light emitting portion to the light receiving portion is blocked by the rotating plate 400 of the second embodiment and the moving portion 49 b of the third embodiment protruding forward beyond the support member 49 , The driving of the blower 10 is prohibited. Thereby, the ventilation operation of air cleaner 1 in the state where cover part 21 is not attached to main part 20 can be prevented.

Fourth Embodiment
Next, a fourth embodiment of the present invention will be described. FIG. 13 shows a plan view of a prefilter of the air purifier according to the present embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 8 described above are given the same reference numerals. In the present embodiment, the configuration of the prefilter 6 is different from that of the first embodiment. The other parts are the same as in the first embodiment.

  The sheet-like prefilter 6 is formed by arranging the first area A1 to the fourth area A4 in the winding direction W. The first area A1 is an area where the mesh density is low, the second area A2 is an area where the mesh density is high, the third area A3 is an area where activated carbon is attached to the mesh, and the fourth area A4 is an aromatic agent attached to the mesh Area.

  The air cleaner 1 also has a dust sensor (not shown) and an odor sensor (not shown). The dust sensor detects dust concentration in the air in the room. The odor sensor detects the concentration of odorous components in the air in the room.

  In the air cleaner 1 configured as described above, for example, when it is determined that the dust concentration in the air is low according to the detection result of the dust sensor, the drive motor 100 is driven to rotate the take-up roll 50, and the first area A1 It is arranged facing the suction port 3. Thereby, the ventilation efficiency of the air cleaner 1 can be improved. Further, for example, when it is determined that the dust concentration in the air is high according to the detection result of the dust sensor, the drive motor 100 is driven to rotate the take-up roll 50, and the second region A2 faces the suction port 3 Will be distributed. In addition, based on the length of the winding direction W of the first area A1 to the fourth area A4 and the rotation amount of the drive motor 100, the area disposed facing the suction port 3 can be determined.

  When it is determined that the concentration of the odor component in the air is high according to the detection result of the odor sensor, the drive motor 100 is driven to rotate the take-up roll 50, and the third area A3 or the fourth area A4 is the suction port 3 It is arranged facing.

  Since the area | region of the pre filter 6 suitable for the state of the air in a living room is arranged facing the suction port 3 by the above, the usability of the air cleaner 1 can be improved.

  Also in this embodiment, the same effect as that of the first embodiment can be obtained. Further, in the pre-filter 6, the first area A1 to the fourth area A4 are formed side by side in the winding direction W. Thereby, since the area | region of the pre filter 6 suitable for the state of the air in a living room is distribute | arranged facing the suction inlet 3, the usability of the air cleaner 1 can be improved.

  The user may select the first area A1 to the fourth area A4 by operating the operation unit 19.

Fifth Embodiment
Next, a fifth embodiment of the present invention will be described. FIG. 14 shows a perspective view of the pressing member of the prefilter of the air purifier according to the present embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 8 described above are given the same reference numerals. In the present embodiment, the configuration of the pressing member 22 is different from that of the first embodiment. The other parts are the same as in the first embodiment.

  The pressing member 22 of the present embodiment includes only the ribs 22 b extending in the winding direction W (in the present embodiment, the vertical direction) of the pre-filter 6, and in the direction (horizontal direction in the present embodiment) orthogonal to the winding direction W. There is no extending rib. Thereby, it is possible to prevent the falling of dust due to the rib extending in the direction orthogonal to the winding direction W sliding on the pre-filter 6.

  Also in this embodiment, the same effect as that of the first embodiment can be obtained.

  In the first to fifth embodiments, the supply roll 40 and the winding roll 50 are disposed in the cover portion 21. Alternatively, the supply roll 40 and the winding roll 50 may be disposed in the main body portion 20.

  In the cleaning operation of the air cleaner 1 according to the first to fifth embodiments, the winding speed of the winding roll 50 and the rewinding speed to the supply roll 40 may be the same or different. For example, when the take-up speed of the take-up roll 50 is made smaller than the take-up speed to the supply roll 40, the take-up speed is increased while removing the dust on the pre-filter 6 to shorten the cleaning operation time. it can.

  The present invention can be used for an air purifier provided with a cleaning device for cleaning a filter.

1 air purifier 2 housing 3 suction port 4, 5 air outlet 6 pre-filter (filter)
DESCRIPTION OF SYMBOLS 6a Bar material 6b Aeration part 6c Storage part 6g Symbol 7 Deodorization filter 8 Air passage 8a 1st branch passage 8b 2nd branch passage 9 Dust collection filter 10 Blower 11 Ion generator 12 Damper 14 and 15 Wind direction board 20 Main part 21 Cover part Reference Signs List 22 holding member 23 magnet 30 cleaning device 40 supply roll 41 shaft 41a core material 41d sleeve 50 take-up roll 60 gear unit 61 bevel gear (first cross axis gear)
62 Bevel gear (2nd cross shaft gear)
63 Spur Gear (1st Parallel Shaft Gear)
64 Spur gear (2nd parallel shaft gear)
65 Internal gear 66 Spur gear (3rd parallel shaft gear)
70 biasing portion 71 rotating body (first rotating body)
71a nipping portion 72 rotating body (second rotating body)
72a claw 73 handle 74 connecting member 75 spring 75 compression spring 77 stopper 77a torsion coil spring 78, 79 housing 80 brush body 81 shaft 82 brush hair bundle 90 dust collection portion 91 lid portion 91a opening portion 92 container 93 comb portion 100 drive motor 200 humidification Part 201 Tray 202 Humidifying filter 300 Tape-like member 400 Rotating plate 401 Shaft part SP space

Claims (8)

A housing that opens a suction port and a blowout port; an air passage that connects the suction port and the blowout port; a blower that is disposed in the air passage; and a filter that faces the suction port An air cleaner comprising: a cleaning device for cleaning the filter;
The cleaning device comprises a supply roll around which the sheet-like filter is wound, a take-up roll for winding the filter, a drive motor for driving the take-up roll to rotate, and the drive motor connected to the drive motor. An air purifier characterized by comprising: a brush body which rotates when the roll rotates and slides on the filter on the winding roll.   The air cleaner according to claim 1, wherein a rotation direction of the winding roll and a rotation direction of the brush body are the same.   The brush hair bundle is helically implanted on the circumferential surface of the shaft supported by the housing at a predetermined interval, and the circumferential speed of the brush body is larger than the circumferential speed of the winding roll. The air purifier according to claim 2.   The case includes a main body portion in which the blower is disposed, and a cover portion which is detachably disposed to the main body portion and in which the suction port is opened, and the drive motor is disposed in the main body portion. The air cleaner according to any one of claims 1 to 3, wherein the supply roll and the take-up roll are disposed on the cover portion.   The first cross shaft gear having a fitting hole fitted to the rotation shaft of the drive motor, the second cross shaft gear meshing with the first cross shaft gear, and the second cross shaft gear integrally rotate 5. The apparatus according to claim 4, further comprising: a first parallel shaft gear connected to the take-up roll; and a second parallel shaft gear engaged with the first parallel shaft gear and connected to the brush body. Description air purifier.   Between the brush body and the second parallel shaft gear, an internal gear integrally provided with the second parallel shaft gear and a third parallel shaft gear meshing with the internal gear are provided, and the brush body is rotated The air purifier according to claim 5, wherein an axis is disposed between the rotation axis of the first parallel shaft gear and the rotation axis of the second parallel shaft gear.   The filter has a ventilating portion disposed facing the suction port when the cleaning device is stopped, and a storage portion delivered from the supply roll when the cleaning device is driven, and the ventilating portion is disposed on the storage portion. The air purifier according to any one of claims 1 to 6, wherein a symbol visible from the suction port is provided in distinction from the above.   The air purifier according to claim 7, wherein the blower is stopped when the cleaning device is driven.

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