JP2023045384A - Filter cleaning device and air conditioner - Google Patents

Abstract

A filter cleaning device capable of properly containing dust in a container is provided. A filter cleaning device includes a cylindrical roller that rotates about a rotating shaft extending along the width direction of a dust filter, and a brush that is provided on the peripheral surface of the roller and removes dust from the dust filter. a cleaning plate having a contact portion extending along the extending direction of the rotating shaft and contacting the brush portion to remove dust remaining in the brush portion; the brush portion and the contact portion; and a dust storage container that stores dust removed by the brush portion and the contact portion, and in a side view, the contact portion has a height of the contact position with the brush portion in the extending direction slanted differently. [Selection drawing] Fig. 11

Description

The present invention relates to a filter cleaning device and an air conditioner.

Patent Literature 1 discloses an air conditioner that includes a brush for removing dust adhering to an air filter, a dust collector, and blades. The air conditioner disclosed in Patent Literature 1 can scrape off dust adhering to the brush with a blade to a dust collecting portion.

JP 2014-74504 A

The dust collector is required to accumulate dust so as to effectively utilize the dust storage area. In the dust collection unit disclosed in Patent Document 1, dust is scraped off to a specific location by the blade, so there is a problem that a large amount of dust accumulates in the specific location and the storage area cannot be fully utilized effectively.

A main object of the present disclosure is to provide a filter cleaning device and an air conditioner that can properly contain dust in a container.

A filter cleaning device according to an aspect of the present disclosure includes a cylindrical rotating body that rotates around a rotating shaft that extends along the width direction of a filter, and a rotating body provided on the peripheral surface of the rotating body that removes dust from the filter. a removing member having a brush portion for removing; a cleaning plate having a contact portion extending along the extension direction of the rotating shaft and contacting the brush portion to remove dust remaining in the brush portion; a storage container that is provided below the brush portion and the contact portion and stores dust removed by the brush portion and the contact portion, wherein the contact portion extends in the extension direction in a side view is inclined so that the height of the contact position with the brush portion is different.

Further, an air conditioner according to an aspect of the present disclosure includes a cylindrical rotating body that rotates about a rotating shaft that extends along the width direction of a filter; a removing member having a brush portion for removing dust; and a cleaning plate having a contact portion extending along the extending direction of the rotating shaft and contacting the brush portion to remove dust remaining in the brush portion. and a storage container that is provided below the brush portion and the contact portion and stores dust removed by the brush portion and the contact portion, and in a side view, the contact portion It includes a filter cleaning device that is slanted such that the heights of contact positions with the brush portion are different in the extension direction, and a main body in which an air passage in which the filter is arranged is formed.

1 is a perspective view showing a main configuration of an air conditioner according to an embodiment of the present disclosure; FIG. Fig. 2 is an exploded perspective view of the air conditioner shown in Fig. 1; FIG. 2 is a cross-sectional view of the air conditioner shown in FIG. 1 taken along line III-III. FIG. 2 is a block diagram schematically showing an example of a main configuration of an electrical unit included in the air conditioner 1 shown in FIG. 1. FIG. FIG. 2 is a perspective view showing a main configuration of a dust collection filter unit included in the air conditioner shown in FIG. 1; FIG. 2 is a perspective view showing the main configuration of a dust collection container included in the air conditioner shown in FIG. 1; FIG. 7 is a VII-VII cross-sectional view of the dust collection container shown in FIG. 6; FIG. 7 is a cross-sectional view of the dust collection container shown in FIG. 6 taken along line VIII-VIII; FIG. 7 is a perspective view showing an example of an unfolded state of the dust collection container shown in FIG. 6; FIG. 7 is a front view showing an example of a roller with a brush included in the dust collection container shown in FIG. 6; FIG. 7 is a rear view showing an example of an unfolded state of the dust collection container shown in FIG. 6; FIG. 12 is a XII-XII sectional view of the dust collection container 23 shown in FIG. FIG. 11 is a diagram schematically showing an example of the arrangement relationship between the brush roller and the contact portion shown in FIG. 10; FIG. 8 is a partially enlarged view of a part of the dust collection container shown in FIG. 7; FIG. 9 is a partially enlarged view of a β portion in the dust collection container shown in FIG. 8;

Hereinafter, embodiments and modifications of the present disclosure will be described with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference numerals throughout all drawings, and duplicate descriptions thereof will be omitted. Further, the embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiments and modifications. Other than this embodiment and modifications, various modifications can be made according to the design and the like within the scope of the technical idea of the present disclosure.

[Air conditioner]
An overall configuration of an air conditioner 1 according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a perspective view showing the main configuration of an air conditioner 1 according to an embodiment of the present disclosure. FIG. 2 is an exploded perspective view of the air conditioner 1 shown in FIG. FIG. 3 is a III-III cross-sectional view of the air conditioner 1 shown in FIG.

1, the bottom side of the air conditioner 1 is downward, the upper side is upward, the side where the front panel 11 is arranged is the front, and the opposite side of the front panel 11, that is, the side where the rear panel 13 is arranged is the rear. and In addition, when viewed from the front side to the rear side, the left side is left and the right side is right.

The air conditioner 1 according to the embodiment adjusts the temperature and humidity of indoor air, for example. In the embodiments of the present disclosure, a unit-type air conditioning system including an outdoor unit (not shown) in which a compressor and a condenser are integrated and an indoor unit in which an evaporator is incorporated will be described as an example. In particular, the air conditioner 1 will be described as an indoor unit in such a unit form.

However, the air conditioner 1 is not limited to such an indoor unit. The air conditioner 1 may be an air conditioning facility in the form of an integrated unit in which a compressor, a condenser, and an evaporator are integrated.

As shown in FIG. 1, the air conditioner 1 has a substantially rectangular parallelepiped shape. The air conditioner 1 is connected to an outdoor unit via a liquid-side pipe (not shown) through which liquefied refrigerant flows and a gas-side pipe (not shown) through which vaporized refrigerant flows. The air conditioner 1 forms a refrigerant circuit (not shown) with the outdoor unit.

The air conditioner 1 includes a housing 10, a dust collection filter unit 20, an air conditioning unit 30, and an electrical unit 40, as shown in FIGS. The dust collection filter unit 20 constitutes, for example, a filter cleaning device included in the air conditioner 1 . Also, the air conditioning unit 30 constitutes the main body of the air conditioner 1, for example.

[Chassis]
As shown in FIG. 1 , the housing 10 is a substantially rectangular parallelepiped molded resin product, and includes a front panel 11 , a body panel 12 and a rear panel 13 . The housing 10 accommodates therein a dust collection filter unit 20, an air conditioning unit 30, and an electrical unit 40, as shown in FIG.

A top panel 14 having a plurality of suction ports 16 is arranged above the body panel 12 . The top panel 14 is configured to cover the top side of the dust collection filter unit 20 . Indoor air flows into the housing 10 through the plurality of suction ports 16 .

As shown in FIGS. 1 and 2, a thin plate-shaped flap 15 extending in the left-right direction of the housing 10 is provided at the lower portion of the main body panel 12 . The flap 15 is attached to the main body panel 12 via a flap rotating shaft (not shown) provided at the rear end of the flap 15 . Then, it is swingable around the flap rotating shaft.

The flap 15 is arranged at a position to close the outlet 17 when the operation of the air conditioner 1 is stopped. On the other hand, when the air conditioner 1 is in operation, as shown in FIG. 3 , the front end of the flap 15 moves downward to form an air outlet 17 for blowing air from the housing 10 .

The flap rotation shaft is connected to a flap drive motor 33 (see FIG. 4 described later) connected to the electrical unit 40 and is rotatable by the torque of the flap drive motor 33 . When the air conditioner 1 is in operation, the flap driving motor 33 operates according to the control signal output from the electrical unit 40 to rotate the flap rotating shaft. The rotation of the flap rotating shaft rotates the flap 15 to a predetermined position. By rotating the flap 15 to a predetermined position in this way, the blowing angle of the air blown into the room from the blowing port 17 can be defined.

[Air conditioning unit]
As shown in FIG. 3 , the air conditioning unit 30 includes an indoor unit heat exchanger 31 and a fan 32 .

The indoor unit heat exchanger 31 is composed of a plurality of heat exchangers. As shown in FIG. 3, the indoor unit heat exchanger 31 is arranged to cover the air blower 32 from above. Each heat exchanger constituting the indoor unit heat exchanger 31 has a configuration in which a large number of heat radiating fins (not shown) are attached to a heat transfer tube (not shown) folded back at the left end. The above-described liquid side pipe and gas side pipe are connected to the indoor unit heat exchanger 31 . The indoor unit heat exchanger 31 functions as an evaporator during cooling operation of the air conditioner 1, for example.

When the air conditioner 1 is in operation, the blower 32 causes indoor air to flow into the housing 10 through the suction port 16 and supplies it to the indoor unit heat exchanger 31. The heat-exchanged air is blown into the room through the blowout port 17. - 特許庁A ventilation passage 18 as an air passage is provided between the suction port 16 and the blowout port 17 . Dust collection filters 21L and 21R included in the dust collection filter unit 20 are arranged in the air passage 18 .

[Electrical unit]
Next, referring to FIG. 4, the configuration of the electrical unit 40 will be described. FIG. 4 is a block diagram schematically showing an example of the main configuration of the electrical unit 40 included in the air conditioner 1 shown in FIG.

As shown in FIG. 4, the electrical unit 40 includes a communication control section 41 and a central processing section 42, and these sections are connected to each other via a bus. Also, the electrical unit 40 is communicably connected to the filter drive motor 25, the roller drive motor 26, the flap drive motor 33, and the blower 32 through the communication line Lc.

The central processing unit 42 is an arithmetic processing unit that performs various controls for each unit of the air conditioner 1 . The central processing unit 42 operates the filter drive motor 25, the roller drive motor 26, the flap drive motor 33, and the blower based on an input signal input via an input interface (not shown) such as a remote controller or an operation panel. 32 and the like.

The communication control unit 41 establishes connections with, for example, the filter drive motor 25, the roller drive motor 26, the flap drive motor 33, and the blower 32, and transmits control signals generated by the central processing unit 42, It accepts an input signal input via an input interface.

[Dust collection filter unit]
Next, the configuration of the dust collection filter unit 20 will be described with reference to FIG. 5 in addition to FIG. 3 described above. FIG. 5 is a perspective view showing the essential configuration of the dust collection filter unit 20 included in the air conditioner 1 shown in FIG.

As shown in FIG. 5, the dust collection filter unit 20 includes two dust collection filters 21L and 21R, a support body 22, two dust containers 23L and 23R, two filter drive rollers 24L and 24R, and two filter drive motors. 25L, 25R, a roller driving motor 26, and a power relay unit 27. The two dust collection filters 21L and 21R are simply referred to as the dust collection filter 21 unless it is necessary to distinguish them. In addition, the two dust containers 23L and 23R will simply be referred to as the dust container 23 unless it is necessary to distinguish them. Further, the two filter driving rollers 24L and 24R are simply referred to as the filter driving roller 24 when it is not necessary to specifically distinguish between them. Further, when it is not necessary to distinguish between the two filter driving motors 25L and 25R, they are simply referred to as the filter driving motor 25. FIG.

As shown in FIG. 5, in the dust collection filter unit 20, the two dust collection filters 21L and 21R, the two dust containers 23L and 23R, and the two filter drive rollers 24L and 24R are arranged in the support body 22 in the horizontal direction. is located adjacent to the

The filter drive motor 25L is provided on the left wall portion 223 of the support body 22, and the filter drive motor 25R is provided on the right wall portion 225 of the support body 22, respectively. The roller drive motor 26 is provided on the right side wall portion 225 of the support body 22 .

As shown in FIG. 5, the power relay portion 27 is provided on the front side of the support body 22 and at the central portion in the left-right direction.

(Dust collection filter)
The dust collection filter 21 is a filter that removes dust contained in the air that has flowed in from the plurality of suction ports 16 . As shown in FIG. 5 , the dust collection filter 21 has a frame 211 and an air filter, and is detachable from the support body 22 . Although the air filter is arranged corresponding to the opening surrounded by the grid frame portion 211b of the frame 211, it is not shown in FIG. 5 for convenience of explanation.

The frame body 211 is a support member that supports the air filter, and as shown in FIG. 5, has a substantially rectangular outer frame portion 211a and a lattice frame portion 211b. The grid frame portion 211b partitions the area surrounded by the outer frame portion 211a in a grid pattern.

As shown in FIG. 3, rack portions 211c, which are bar-shaped gears, are formed on the left and right lower surfaces of the outer frame portion 211a. When the dust collection filter 21 is attached to the support body 22, the rack portion 211c of the frame 211 and the pinion portion 24a provided on the peripheral surface of the filter driving roller 24 are fitted.

Since the rack portion 211c of the frame 211 and the pinion portion 24a of the filter drive roller 24 are fitted in this way, when the filter drive roller 24 rotates counterclockwise in FIG. It moves forward and is taken up by the filter drive roller 24 . The dust collecting filter 21 wound around the filter driving roller 24 is folded back along the peripheral surface of the filter driving roller 24 and guided to the guide GD.

Conversely, when the filter drive roller 24 rotates clockwise in FIG. That is, the dust collection filter 21 guided by the guide GD and housed in the dust collection filter unit 20 is wound around the filter drive roller 24 . The dust filter 21 wound around the filter drive roller 24 is folded back along the peripheral surface of the filter drive roller 24, moves rearward of the support body 22, and returns to the initial position. The initial position is the initial position when the dust collection filter 21 is attached to the support body 22 .

(support body)
As shown in FIG. 5, the support body 22 includes two dust collection filters 21L and 21R, two dust containers 23L and 23R, two filter drive motors 25L and 25R, a roller drive motor 26, and a power relay section 27. It is a supporting member that supports.

The support body 22 is a resin plate-like member curved downward from the rear side toward the front side. The support body 22 comprises grid ribs 222 , a left side wall 223 , a center wall 224 , a right side wall 225 and a bottom support 226 .

The grid rib 222 is a grid-shaped reinforcing rib for improving the strength of the support body 22 and is formed on the upper surface of the support body 22 .

The left side wall portion 223 is a side wall formed on the left edge portion of the support body 22, as shown in FIG. GD is formed. This guide GD is a guide member for guiding the dust collection filter 21 in a prescribed direction. A filter driving motor 25L is provided on the outer surface of the left side wall portion 223. As shown in FIG.

The right side wall portion 225 is a side wall formed on the right edge portion of the support body 22, as shown in FIG. Although not shown in FIG. 5, a guide GD having the same shape as that of the left side wall portion 223 is formed on the inner surface of the right side wall portion 225 . A roller driving motor 26 and a filter driving motor 25R are fixed to the outer surface of the right side wall portion 225 .

The central wall portion 224 is a wall member that extends in the front-rear direction at a substantially central portion in the left-right direction of the support body 22, as shown in FIG. As shown in FIG. 5, guides GD having the same shape as the guides GD of the left side wall portion 223 and the right side wall portion 225 are provided on both left and right side surfaces of the central wall portion 224 . The guide GD provided on the left side surface of the central wall portion 224 and the guide GD provided on the left side wall portion 223 are provided at opposing positions, and can guide the left and right side portions of the dust collection filter 21L. . Further, the guide GD provided on the right side of the central wall portion 224 and the guide GD provided on the right side wall portion 225 are provided at opposing positions, and guide the left and right sides of the dust collection filter 21R. can be done. Therefore, the two dust collection filters 21L and 21R, which are provided on the left and right sides respectively, can be guided in specified directions.

As shown in FIG. 5, the bottom support portion 226 is a lower surface member formed at the lowermost end portion of the support body 22, and is a support member that supports the bottom portion of the dust container 23. As shown in FIG. The bottom support portion 226 includes a shelf plate portion (not shown) that contacts the bottom portion of the dust container 23 to support the dust container 23 and a position that prevents the dust container 23 attached to the support main body 22 from shifting. and a misalignment prevention part (not shown).

(Dust container)
The configuration of the dust container 23 will be described with reference to FIGS. 6 to 9. FIG. FIG. 6 is a perspective view showing the main configuration of the dust container 23 included in the air conditioner 1 shown in FIG. 6 is a perspective view of the dust container 23 as seen from the rear side. FIG. 7 is a VII-VII sectional view of the dust container 23 shown in FIG. FIG. 8 is a cross-sectional view of the dust container 23 shown in FIG. 6 taken along line VIII-VIII. That is, FIG. 7 shows a cross-sectional structure of the dust container 23 cut out near the center in the left-right direction and viewed from the right side to the left side. FIG. 8 shows a cross-sectional structure cut from the right side of the dust container 23 in the left-right direction at a position corresponding to approximately 1/4 of the dust container 23 and viewed from the right side to the left side. FIG. 9 is a perspective view showing an example of the unfolded state of the dust container 23 shown in FIG.

The dust storage container 23 is a container that stores dust removed from the dust collection filter 21 . The dust container 23 can be attached to and detached from the support body 22 in the front-rear direction. It should be noted that the direction of each part provided in the dust container 23 is defined based on the mounting state in the air conditioner 1 .

As shown in FIGS. 6, 7, and 8, the dust container 23 has a substantially rectangular parallelepiped shape having a front wall portion 230a, a right wall portion 230b, a left wall portion 230c, a bottom portion 230d, and a rear wall portion 230e. It is a box member. The front wall portion 230a, the right wall portion 230b, the left wall portion 230c, the bottom portion 230d, and the rear wall portion 230e form a storage portion 230, which is a region for storing dust.

Further, the dust container 23 has an opening 23a above the containing portion 230, and the dust removed from the dust collecting filter 21 can be guided to the containing portion 230 through the opening 23a. That is, a brush roller 235 is placed above the opening 23a, and the dust scraped from the dust collection filter 21 by the brush roller 235 is guided to the storage section 230 through the opening 23a. The brushed roller 235 functions as a removing member that removes dust from the dust collection filter 21 .

At least a part of the front wall portion 230a, the right wall portion 230b, the left wall portion 230c, the bottom portion 230d, and the rear wall portion 230e, which constitute the housing portion 230, is formed so that the user can recognize the accumulated dust from the outside. It may be made of transparent or translucent resin.

7 and 8, the dust storage container 23 is provided with a mechanism storage portion 231 above and in front of the storage portion 230. As shown in FIGS. The mechanism housing portion 231 is a rectangular tube-shaped box member that houses the attachment/detachment mechanism 234 . The front wall portion of the mechanism housing portion 231 is flush with the front wall portion 230a. to form

The attachment/detachment mechanism 234 is a mechanism for enabling attachment/detachment of the dust container 23 from the support body 22 . Pin holes (not shown) are formed in the left and right side surfaces of the mechanism housing portion 231, and as shown in FIG. It is configured so that the pin 234 a can protrude and retract into the mechanism housing portion 231 .

On the other hand, the support body 22 is formed with receiving holes (not shown) for receiving the pair of engaging pins 234a. By inserting the pair of engagement pins 234a into the respective receiving holes, the dust container 23 is locked to the support body 22, and by extracting the pair of the engaging pins 234a from the respective receiving holes, the dust container 23 is held. 23 can be removed from the support body 22 .

As shown in FIGS. 7 and 8, a cleaning plate 232 protrudes toward a brush roller 235 attached to the dust container 23 and extends in the left-right direction on the rear wall of the mechanism container 231. is provided. An end portion of the cleaning plate 232 protruding toward the roller 235 with brush serves as a contact portion 232 a that contacts the roller 235 with brush. The contact portion 232a can contact the brush portion 235b of the brush roller 235 to remove dust remaining in the brush portion 235b.

When the end of the cleaning plate 232 opposite to the contact portion 232a is defined as the base end, the base end forms a part of the wall portion on the rear side of the mechanism housing portion 231 . As shown in FIGS. 7 and 8, the cross-sectional shape of the proximal end portion of the cleaning plate 232 is curved according to the shape of the roller 235 with brush. By curving the cross-sectional shape of the cleaning plate 232 in this manner, the contact between the base end portion of the cleaning plate 232 and the bristles of the brush portion 235b of the roller 235 with a brush can be made gentle. Details of the configuration of the cleaning plate 232 and the arrangement relationship between the cleaning plate 232 and the brush roller 235 will be described later.

Further, as shown in FIG. 6, the dust container 23 is provided with a filter guide 237 above the opening 23a. The filter guide 237 is a guide member that guides the dust collection filter 21 wound by the filter driving roller 24 so that it is folded back along the peripheral surface of the filter driving roller 24 . As shown in FIG. 6 , the filter guide 237 has a plurality of thin-plate-like guide rails 237 a that are curved along the peripheral shape of the filter drive roller 24 . The filter guide 237 according to the embodiment has five guide rails 237a and a plate member 237b for fixing these five guide rails 237a. The plate member 237b extends in the left-right direction and curves along the shape of the guide rail 237a.

In the filter guide 237, five guide rails 237a are provided on the main surface of the plate member 237b. Specifically, two guide rails 237a out of the five guide rails 237a are arranged at both ends in the horizontal direction of the plate-like member 237b. Three guide rails 237a are arranged at regular intervals between the two guide rails 237a arranged at both ends.

In the dust container 23, as shown in FIG. 9, by removing the filter guide 237 from the dust container 23, the rear wall portion 230e erected in the vertical direction is laid down to the rear side, in a so-called unfolded state. be able to.

That is, as shown in FIG. 9, a pair of engaging portions 237c projecting forward are provided at both ends of the plate member 237b in the left-right direction. Projections protruding inward are provided at the tips of the pair of locking portions 237c. On the other hand, the right wall portion 230b and the left wall portion 230c are each provided with a pair of ribs 252 projecting outward in the left-right direction. In the assembled state shown in FIG. 6, the pair of locking portions 237c are engaged with the pair of ribs 252, respectively, so that the rear wall portion 230e can be fixed in the dust container 23. As shown in FIG.

Also, the rear wall portion 230e is rotatably joined to the rear edge of the bottom portion 230d via a joint shaft 233. As shown in FIG. Therefore, by releasing the engagement between the pair of locking portions 237c and the pair of ribs 252, the rear wall portion 230e standing upright from the assembled state shown in FIG. It can be rotated around the axis of and laid down to the rear side to be in a deployed state. By opening the dust container 23 in this manner, the user can easily access the storage portion 230 of the dust container 23 . Thereby, the user can easily remove the dust accumulated in the storage portion 230 of the dust storage container 23 .

(Roller with brush)
Next, the brush roller 235 provided above the dust container 23 will be described with reference to FIG. 10 in addition to FIGS. 3 and 6 described above. FIG. 10 is a front view showing an example of the brushed roller 235 included in the dust container 23 shown in FIG.

As shown in FIGS. 3 and 6 , a brush roller 235 is mounted above the dust container 23 as a removing member for removing dust from the dust collecting filter 21 . As shown in FIG. 6, a first side gear portion 236a is provided at one end of the roller 235 with a brush, and a second side gear portion 236b is provided at the other end.

The brush roller 235 is a removing member for scraping dust from the dust collection filter 21 when cleaning the dust collection filter 21 . As shown in FIG. 10, the brushed roller 235 has a brush portion 235b attached to the peripheral surface of the roller 235a, and is rotatably supported by the right wall portion 230b and the left wall portion 230c of the dust container 23. .

Specifically, the brush-equipped roller 235 includes a roller 235a, which is a cylindrical rotating body that rotates around a rotation axis A extending in the width direction of the dust collection filter 21, that is, along the left-right direction, and the peripheral surface of the roller 235a. , and has a plurality of brush portions 235b for removing dust from the dust collection filter 21. As shown in FIG. The brush portion 235b has a strip shape, and small tufts of synthetic resin are provided at regular intervals. In the brushed roller 235, a plurality of brush portions 235b are provided spirally along the peripheral surface of the roller 235a.

In cleaning the dust collecting filter 21, the brushed roller 235 contacts the dust collecting filter 21 while the brush portion 235b attached to the peripheral surface of the roller 235a rotates due to the rotation of the roller 235a. scrape dust from. The scraped dust is collected in the dust container 23 . In addition, the roller 235a rotates counterclockwise about the rotation axis A when viewed from the right side to the left side.

As described above, the dust collection filter 21 is movable in the front-rear direction by the rotation of the filter driving roller 24 . Further, as shown in FIG. 3, when the dust container 23 is attached to the support body 22, the brush roller 235 and the filter driving roller 24 are arranged so that the dust collecting filter 21 can be sandwiched therebetween. there is Therefore, when the dust collection filter 21 is moved forward by the rotation of the filter drive roller 24 , the dust collection filter 21 contacts the brush of the brush roller 235 and can scrape off the dust adhering to the dust collection filter 21 .

Further, as shown in FIG. 6, in the brushed roller 235, a first side gear portion 236a is provided at the right end portion of the roller 235a, and a second side gear portion 236b is provided at the left end portion of the roller 235a.

Of the two dust containers 23L and 23R arranged adjacent to each other in the left-right direction, the dust container 23R arranged on the right side has a first side gear portion 236a and a second side gear portion 236a provided at both ends of the roller 235a. The side gear portion 236b engages other members as follows.

That is, the first side gear portion 236a provided at the right end of the roller 235a engages with the gear provided at the tip of the shaft of the roller drive motor 26. As shown in FIG. On the other hand, the second side gear portion 236b provided at the left end of the roller 235a engages with a relay gear (not shown) included in the power relay portion 27. As shown in FIG.

Further, in the dust container 23L arranged on the left side, the first side gear portion 236a and the second side gear portion 236b provided at both ends of the roller 235a are engaged with other members as follows.

That is, in the dust container 23L arranged on the left side, the first side gear portion 236a provided at the right end portion of the roller 235a meshes with the relay gear of the power relay portion 27. As shown in FIG. On the other hand, the second side gear portion 236b provided at the left end of the roller 235a is free.

As described above, the roller 235a of the brushed roller 235 placed on the dust container 23R is connected to the roller 235a of the brushed roller 235 placed on the dust container 23L via the relay gear of the power relay unit 27. can engage. The power relay unit 27 can transmit the rotational force transmitted from the roller drive motor 26 to the brushed roller 235 of the dust container 23R to the brushed roller 235 of the dust container 23L via the relay gear. . Therefore, the roller drive motor 26 can simultaneously rotate the brushed roller 235 of the dust container 23R and the brushed roller 235 of the dust container 23L.

(Cleaning plate)
Dust can be removed from the dust collection filter 21 by the brush roller 235 as described above. By the way, part of the removed dust may remain in the gaps between the tufts of the brush portion 235 b of the brush roller 235 . Therefore, the dust storage container 23 is provided with a cleaning plate 232 so that the dust remaining in the gaps between the hair bundles can be pushed out by the cleaning plate 232 .

The configuration of the cleaning plate 232 will be described below with reference to FIGS. 11 and 12 in addition to FIG. 9 described above. FIG. 11 is a rear view showing an example of the unfolded state of the dust container 23 shown in FIG. FIG. 12 is a XII-XII sectional view of the dust container 23 shown in FIG. FIG. 12 shows a cross-sectional structure of a cross section horizontally cut along XII-XII as viewed in plan. 12, the illustration of the bottom portion 230d, the rear wall portion 230e, and the filter guide 237 is omitted for convenience of explanation.

As shown in FIGS. 11 and 12, four cleaning plates 232 are arranged in the horizontal direction, that is, along the extension direction of the rotation axis A of the roller 235 with brush. Each cleaning plate 232 is a plate-shaped member that extends in the left-right direction, that is, along the direction in which the rotation axis A extends. 232a is inclined so that the height is different in the horizontal direction, that is, the direction in which the rotation axis A extends. Specifically, the contact portion 232a is inclined so as to become lower from the right side to the left side.

The length of each cleaning plate 232 in the left-right direction corresponds to the length in the left-right direction of one square of the dust collection filter 21 partitioned by the grid frame portion 211b. Therefore, the connection position between the cleaning plates 232 adjacent in the left-right direction coincides with the position of the grid frame portion 211b that defines the grids of the dust collection filters 21 adjacent in the left-right direction. Here, in the dust collection filter 21, dust is less likely to adhere to the position where the grid frame portion 211b is arranged. Therefore, in the brush roller 235, almost no dust adheres to the portion corresponding to the position of the grid frame portion 211b that defines the grids of the dust collection filters 21 adjacent in the left-right direction. Therefore, even if there is a gap between the cleaning plates 232 adjacent to each other in the left-right direction and there is a range where the cleaning plates 232 are not arranged, the performance of removing dust from the brush roller 235 is not affected.

Further, as shown in FIG. 12, the contact portion 232a of each cleaning plate 232 extends so as to be inclined with respect to the extending direction of the rotation axis A when the dust container 23 is viewed from above.

(Layout relationship between cleaning plate and roller with brush)
Next, the positional relationship between the cleaning plate 232 and the brush roller 235 will be described with reference to FIGS. 13, 14 and 15. FIG. FIG. 13 is a diagram schematically showing an example of the positional relationship between the brush roller 235 and the contact portion 232a shown in FIG. FIG. 13 shows the positional relationship between the brush roller 235 and the contact portion 232a when the dust container 23 is viewed from the front side toward the rear side. In FIG. 13, for convenience of explanation, only the contact portion 232a of one cleaning plate 232 is indicated by dotted lines. FIG. 14 is a partially enlarged view of the α portion of the dust container 23 shown in FIG. 15 is a partially enlarged view of the β portion of the dust container 23 shown in FIG. 8. FIG. In FIGS. 14 and 15, the locus D of the contact portion 232a of the brush roller 235 is indicated by a dotted line. An arrow indicates a linear distance from the rotation center of the roller 235a to the contact portion 232a.

As shown in FIG. 13, the brush portion 235b is spirally provided along the peripheral surface of the roller 235a, and the inclination C of the brush portion 235b of the roller 235a decreases from left to right in side view. It is slanted so that On the other hand, the contact portion 232a is inclined opposite to the inclination of the brush portion 235b. That is, the contact portion 232a is inclined so as to become lower from the right side to the left side. It is preferable that the contact portion 232a is inclined in the vertical direction in a range equal to or lower than the rotation axis A and equal to or higher than the lowermost portion of the roller 235 with brush.

Since the contact portion 232a is inclined opposite to the inclination C of the brush portion 235b, the contact area between the contact portion 232a and the brush portion 235b can be reduced. Therefore, the torque required to rotate the brushed roller 235 can be suppressed.

Further, since the contact portion 232a is inclined as described above, when the dust container 23 is viewed from the front side to the rear side, the height of the contact position with the brush portion 235b in the left-right direction is will be different. In other words, as shown in FIGS. 14 and 15, in the cross-sectional structure of the dust container 23 viewed from the right side to the left side, the contact position between the contact portion 232a and the brush portion 235b is the circumference of the roller 235 with the brush. Differs in direction.

Therefore, as shown in FIGS. 14 and 15, when the brush roller 235 is at a height position close to the rotation axis A and when it is at a height position close to the bottom of the brush roller 235, The direction of the tangential line formed by the contact portion 232a and the trajectory D is different.

Here, the dust remaining on the brush roller 235 is removed by the tufts of the brush portion 235b coming into contact with the abutting portion 232a and being repelled when the tufts cross over the abutting portion 232a. Therefore, the dust remaining on the brush roller 235 is repelled along the tangential direction formed by the contact portion 232a and the locus D. As shown in FIG.

In each dust container 23, each cleaning plate 232 has a different height position between the contact portion 232a and the brush portion 235b in the left-right direction. The direction will be different. Therefore, the position where the dust removed from the brush portion 235b in contact with the contact portion 232a is accumulated in the housing portion 230 can be varied in the left-right direction. For this reason, the dust storage container 23 can prevent the dust from clumping together and accumulating in the storage portion 230, and can properly store the dust.

Further, as shown in FIGS. 14 and 15, even when the contact positions of the contact portion 232a and the brush portion 235b are different, the amount of protrusion of the contact portion 232a in the horizontal direction is made different. Thus, the distance from the rotation axis A of the brush roller 235 to the contact portion 232a is equal. That is, as shown in FIG. 12, the extension direction of the contact portion 232a is aligned with the extension direction of the rotation axis A in plan view so that the amount of protrusion of the contact portion 232a increases from right to left in the horizontal direction. It is provided so that it may incline.

With this configuration, even if the contact portion 232a inclines from top to bottom in the left-right direction and the height position of contact with the brush portion 235b changes, the distance from the rotation axis A of the roller with brush 235 to the contact portion 232a remains unchanged. The cleaning plate 232 can be configured such that .

As described above, since the distance between the contact portion 232a and the rotation axis A is equal in the left-right direction, the height positions of contact between the contact portion 232a and the brush portion 235b are different in the left-right direction. A uniform force can be applied from the contact portion 232a to the brush portion 235b even when the contact portion 232a is in contact with the brush portion 235b. Therefore, the dust container 23 can remove the dust from the brush portion 235 b evenly by the cleaning plate 232 .

Although the dust container 23 according to the embodiment of the present disclosure is configured to include four cleaning plates 232, the number of cleaning plates 232 provided is not limited to this. For example, one cleaning plate 232 may be provided as long as the contact portion 232a can be appropriately inclined.

In addition, although the cleaning plate 232 is provided on the rear wall of the mechanism housing portion 231, the position where the cleaning plate 232 is provided is not limited to the rear wall of the mechanism housing portion 231. do not have. As long as the positional relationship between the contact portion 232a and the brush roller 235 is maintained, the location where the cleaning plate 232 is provided is arbitrary.

In the above-described embodiment, the air conditioner 1 including the dust container 23 is described as an example, but the present invention is not limited to this. For example, it can be used in general devices that have an air filter and have a function of removing dust adhering to the air filter.

Reference Signs List 1 air conditioner 10 housing 11 front panel 12 body panel 13 rear panel 14 top panel 15 flap 16 suction port 17 air outlet 18 air passage 20 dust collection filter unit 21 dust collection filter 22 support main body 23 dust container 23a opening 24 Filter driving roller 25 Filter driving motor 26 Roller driving motor 30 Air conditioning unit 31 Heat exchanger for indoor unit 32 Blower 211 Frame body 211a Outer frame portion 211b Lattice frame portion 230 Storage portion 230a Front wall portion 230b Right wall portion 230c Left wall portion 230d Bottom portion 230e Rear wall portion 231 Mechanism housing portion 232 Cleaning plate 232a Contact portion 235 Roller with brush 235a Roller 235b Brush portion A Rotation shaft

Claims (6)

a removing member having a cylindrical rotating body that rotates around a rotating shaft that extends along the width direction of the filter; and a brush portion that is provided on the peripheral surface of the rotating body and removes dust from the filter;
a cleaning plate having a contact portion extending along the extending direction of the rotating shaft and contacting the brush portion to remove dust remaining in the brush portion;
a storage container provided below the brush portion and the contact portion for storing dust removed by the brush portion and the contact portion;
In a side view, the contact portion is inclined such that the height of the contact position with the brush portion is different in the extending direction. The brush portion is spirally provided along the peripheral surface of the rotating body,
2. The filter cleaning device according to claim 1, wherein said contact portion is inclined opposite to the inclination of said brush portion in a side view. The filter cleaning device according to claim 1 or 2, wherein the contact portion is provided so as to have a constant distance from the rotating shaft. 4. The filter cleaning device according to claim 3, wherein when the filter cleaning device is viewed from above, the contact portion extends obliquely with respect to the rotation shaft. comprising a plurality of the cleaning plates,
The filter cleaning device according to any one of claims 1 to 4, wherein each of the plurality of cleaning plates is arranged side by side along the extending direction of the rotating shaft. A filter cleaning device according to any one of claims 1 to 5;
an air conditioner, comprising: a main body having a ventilation passage in which the filter is arranged.

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