JP4840115B2 - Air conditioner filter cleaning mechanism and air conditioner - Google Patents

Description

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

An air conditioner is usually provided with a filter that removes dust from air taken in from the room. However, if dust adheres to and accumulates on this filter, ventilation resistance increases. For this reason, the air conditioner provided with the filter cleaning mechanism which cleans a filter automatically is proposed (refer patent document 1). In this type of filter cleaning mechanism, when the brush portion comes into contact with the filter surface, dust can be removed from the filter and the filter can be cleaned.
Japanese Utility Model Publication No. 62-160221

  The inventor of the present invention, in the filter cleaning mechanism using the brush part as described above, provides an opening in the frame part that supports the brush part, and the brush part is framed so that the wire of the brush part protrudes from the opening. I devised a structure supported by the department. In this structure, dust can be removed from the filter when the wire protruding from the opening contacts the filter. Further, the frame portion is provided with a reinforcing member over the opening, and the strength of the frame portion can be prevented from being lowered due to the opening.

  However, when the reinforcing member is provided over the opening as described above, the wire rod of the brush portion protruding from the opening may come into contact with the reinforcing member and the wire rod may be greatly deformed. Further, when the thickness of the reinforcing member is reduced in order to reduce the deformation of the wire, it is difficult to improve the strength of the frame portion by reducing the strength of the reinforcing member.

  The subject of this invention is providing the filter cleaning mechanism and air conditioner of an air conditioner which can improve the intensity | strength of a flame | frame part and can suppress a deformation | transformation of the wire of a brush part.

  The filter cleaning mechanism of the air conditioner according to the first invention includes a filter, a frame portion, and a brush portion. The filter removes dust from the permeating air. The frame portion is provided with an opening and a reinforcing member provided over the opening. The brush part has a core material supported by the frame part, and a plurality of wires provided on the peripheral surface of the core part, and the wire material protruding outside from the frame part through the opening of the frame part contacts the filter To remove dust from the filter. And a reinforcement member has an inner side edge part located in the core material side, and an outer side part located in the opposite side to a core material rather than an inner side edge part, and whose thickness is larger than an inner edge part.

  In the filter cleaning mechanism of the air conditioner, the reinforcing member has an outer portion having a thickness larger than that of the inner end portion. For this reason, the strength of the reinforcing member can be improved. Moreover, since the inner side edge part located in the core material side is smaller than the outer side part, the deformation | transformation of a wire rod by a reinforcement member contacting a wire rod can be made small. Thereby, in the filter cleaning mechanism of this air conditioner, the strength of the frame part can be improved and the deformation of the wire of the brush part can be suppressed.

  The filter cleaning mechanism of the air conditioner according to the second aspect of the present invention is the filter cleaning mechanism of the first aspect, wherein the outer portion is an outer end located on the opposite side of the core member from the reinforcing member.

  In the filter cleaning mechanism of this air conditioner, the thickness of the outer end portion of the reinforcing member is larger than the inner end portion, so that the strength of the reinforcing member is improved as compared with the case where the thickness of the entire reinforcing member is small. Can do. Moreover, since the thickness of the inner side edge part located in the core material side is smaller than the thickness of an outer side edge part, the deformation | transformation of a wire material by a reinforcement member contacting with a wire material can be made small. Thereby, in the filter cleaning mechanism of this air conditioner, the strength of the frame part can be improved and the deformation of the wire of the brush part can be suppressed.

  A filter cleaning mechanism for an air conditioner according to a third aspect of the present invention is the filter cleaning mechanism of the second aspect, wherein the distance from the surface of the core material to the outer end of the reinforcing member is smaller than the length of the wire.

  In the filter cleaning mechanism of this air conditioner, the distance from the surface of the core material to the outer end of the reinforcing member is smaller than the length of the wire. For this reason, even if it arrange | positions so that a wire may contact a filter, it can suppress that a reinforcement member interferes with a filter. Also, in such a case, the reinforcing member is buried between the plurality of wires, and the influence of the reinforcing member on the wire is increased, but the thickness of the inner end portion of the reinforcing member is small, so the wire is not deformed. It can be kept small.

  A filter cleaning mechanism for an air conditioner according to a fourth aspect of the present invention is the filter cleaning mechanism according to any one of the first to third aspects, wherein the reinforcing member has a T-shaped cross-sectional shape, and the pointed portion thereof is It arrange | positions so that it may be located in the core material side.

  In the filter cleaning mechanism of this air conditioner, since the reinforcing member has a T-shaped cross-sectional shape, the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  A filter cleaning mechanism for an air conditioner according to a fifth aspect of the present invention is the filter cleaning mechanism according to any one of the first to third aspects, wherein the reinforcing member has an L-shaped cross-sectional shape, and the pointed portion thereof is It arrange | positions so that it may be located in the core material side.

  In the filter cleaning mechanism of this air conditioner, since the reinforcing member has an L-shaped cross-sectional shape, the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  A filter cleaning mechanism of an air conditioner according to a sixth aspect of the present invention is the filter cleaning mechanism according to any one of the first to third aspects, wherein the reinforcing member has a triangular cross-sectional shape, and the pointed portion is a core material. It is arranged to be located on the side.

  In the filter cleaning mechanism of this air conditioner, since the reinforcing member has a triangular cross-sectional shape, the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  A filter cleaning mechanism for an air conditioner according to a seventh aspect of the present invention is the filter cleaning mechanism according to any one of the first to sixth aspects, wherein a portion of the inner end portion of the reinforcing member that faces the core member is a core member. It has a concave shape so as to be away from it.

  In the filter cleaning mechanism of the air conditioner, the portion of the inner end portion of the reinforcing member facing the core member has a concave shape so as to be away from the core member, and the reinforcing member is more than the base portion of the wire member. It is configured to contact the tip side as much as possible. For this reason, the deformation | transformation of a wire by contact with a reinforcement member can be suppressed.

  An air conditioner according to an eighth aspect includes the filter cleaning mechanism according to any one of the first aspect to the seventh aspect.

  In this air conditioner, in the filter cleaning mechanism, the thickness of the inner end portion located on the core material side of the reinforcing member is smaller than the thickness of the outer end portion located on the opposite side to the core material. For this reason, the deformation | transformation of a wire by a reinforcement member contacting a wire can be made small. Moreover, since the thickness of the outer side edge part of a reinforcement member is larger than an inner side edge part, the intensity | strength of a reinforcement member can be improved compared with the case where the thickness of the whole reinforcement member is small. Thereby, in this air conditioner, the strength of the frame part of the filter cleaning mechanism can be improved and the deformation of the wire of the brush part can be suppressed.

  In the filter cleaning mechanism for an air conditioner according to the first aspect of the invention, the reinforcing member has an outer portion having a thickness larger than that of the inner end portion. For this reason, the strength of the reinforcing member can be improved. Moreover, since the inner side edge part located in the core material side is smaller than the outer side part, the deformation | transformation of a wire rod by a reinforcement member contacting a wire rod can be made small. Thereby, in the filter cleaning mechanism of this air conditioner, the strength of the frame part can be improved and the deformation of the wire of the brush part can be suppressed.

  In the filter cleaning mechanism for an air conditioner according to the second aspect of the invention, the thickness of the outer end of the reinforcing member is larger than that of the inner end. Can be improved. Moreover, since the thickness of the inner side edge part located in the core material side is smaller than the thickness of an outer side edge part, the deformation | transformation of a wire material by a reinforcement member contacting with a wire material can be made small. Thereby, in the filter cleaning mechanism of this air conditioner, the strength of the frame part can be improved and the deformation of the wire of the brush part can be suppressed.

  In the filter cleaning mechanism of the air conditioner according to the third aspect of the present invention, the reinforcing member can be prevented from interfering with the filter even if the wire is arranged so as to contact the filter. Moreover, since the thickness of the inner side edge part of a reinforcement member is small, a deformation | transformation of a wire can be suppressed small.

  In the filter cleaning mechanism for an air conditioner according to the fourth aspect of the present invention, the reinforcing member has a T-shaped cross-sectional shape, so that the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  In the filter cleaning mechanism of the air conditioner according to the fifth aspect of the invention, the reinforcing member has an L-shaped cross-sectional shape, so that the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  In the filter cleaning mechanism for an air conditioner according to the sixth aspect of the invention, the reinforcing member has a triangular cross-sectional shape, so that the strength of the reinforcing member can be improved. Moreover, since the pointed end portion of the reinforcing member is located on the core material side, it is possible to suppress deformation of the wire due to contact of the reinforcing member.

  In the filter cleaning mechanism of the air conditioner according to the seventh aspect of the invention, the portion of the inner end portion of the reinforcing member that faces the core member has a shape that is recessed so as to move away from the core member, and the reinforcing member is a wire member. It is comprised so that it may contact the front end side as much as possible rather than the root part. For this reason, the deformation | transformation of a wire by contact with a reinforcement member can be suppressed.

  In the air conditioner according to the eighth aspect of the present invention, in the filter cleaning mechanism, the thickness of the inner end portion located on the core material side of the reinforcing member is smaller than the thickness of the outer end portion located on the side opposite to the core material. . For this reason, the deformation | transformation of a wire by a reinforcement member contacting a wire can be made small. Moreover, since the thickness of the outer side edge part of a reinforcement member is larger than an inner side edge part, the intensity | strength of a reinforcement member can be improved compared with the case where the thickness of the whole reinforcement member is small. Thereby, in this air conditioner, the strength of the frame part of the filter cleaning mechanism can be improved and the deformation of the wire of the brush part can be suppressed.

<Configuration of air conditioner>
An air conditioner 1 according to an embodiment of the present invention is shown in FIGS. 1 and 2. The air conditioner 1 is a wall-mounted indoor unit attached to an indoor wall surface, and is connected to an outdoor unit (not shown) by a refrigerant pipe and a communication line. The air conditioner 1 includes a main unit 10, a front grill 50, a front panel 60, and a filter cleaning mechanism 40. FIG. 1 is an exploded perspective view of the air conditioner 1, and FIG. 2 is a longitudinal sectional view of the air conditioner 1.

[Main unit 10]
The main unit 10 includes a bottom frame 11, an indoor heat exchanger 12, a blower fan 13, an electrical component unit 14, and the like.

  An indoor heat exchanger 12, a blower fan 13, an electrical component unit 14 and the like are attached to the bottom frame 11. Further, a blowout port 15 is provided at the lower front portion of the bottom frame 11, and a horizontal flap 17 for guiding the air blown out from the blowout port 15 is provided. The horizontal flap 17 is rotationally driven by a flap motor 18 (see FIG. 7), and can change the air guiding direction and open and close the outlet 15.

  The indoor heat exchanger 12 is configured by a plurality of fins and a heat transfer tube through which a refrigerant flows, and performs heat exchange with air passing therethrough.

  The blower fan 13 generates a flow of air that is taken in from the room and adjusted in temperature by the indoor heat exchanger 12 and then blown into the room from the blowout port 15. The blower fan 13 is a cross flow fan, and is rotationally driven by an indoor fan motor 19 (see FIG. 7).

[Front grille 50 and front panel 60]
The front grille 50 is attached so as to cover the filter unit 20 described later. As shown in FIG. 1, an upper suction port 51 is formed on the top surface of the front grill 50, and a front suction port 52 is formed on the front surface of the front grill 50. A front panel 60 is attached to the front surface of the front grill 50 so as to cover the front surface of the front grill. The front panel 60 can open and close the front inlet 52 of the front grill 50 by rotating around the lower end.

  In addition, the front grill 50 is provided with a display unit 53 (see FIG. 7) that displays the operating status of the air conditioner 1. The display unit 53 is provided so as to be visible from the front of the air conditioner 1. The display part 53 consists of a plurality of LEDs, and displays the operating status of the air conditioner 1 with or without lighting.

[Filter cleaning mechanism 40]
The filter cleaning mechanism 40 is a mechanism that automatically cleans dust adhering to the filter 21, and includes a filter unit 20 and a brush unit 70.

<Filter unit 20>
The filter unit 20 is attached to the bottom frame 11 of the main unit 10, and includes a filter unit frame 22, a filter 21, a filter drive gear 23, a filter drive unit 24 (see FIG. 7), and the like.

  The filter unit frame 22 is a member that supports the filter 21, and is disposed on the windward side of the indoor heat exchanger 12. The filter unit frame 22 has a bent shape so as to cover the front and top of the indoor heat exchanger 12, and a lattice-shaped opening is provided in a portion of the filter unit frame 22 facing the indoor heat exchanger 12. It has been. As shown in FIG. 2, a guide portion 25 that guides the filter 21 in contact with the side end portion of the filter 21 is formed on the inner surface of the filter unit frame 22. The guide portion 25 includes an upper guide portion 26 provided along the upper surface of the filter unit frame 22, a front guide portion 27 having a gently curved shape along the front surface of the filter unit frame 22, and the filter unit frame 22. The rear guide portion 28 is gently curved along the back surface, and the lower guide portion 29 is disposed below the lower end of the front guide portion 27 and the lower end of the rear guide portion 28. The upper end of the front guide portion 27 and the upper end of the rear guide portion 28 are connected to the upper guide portion 26, respectively. Further, the lower guide portion 29 has an arcuate shape that curves downward so as to fold the filter 21 back from the front guide portion 27 to the rear guide portion 28 or from the rear guide portion 28 to the front guide portion 27. .

  The filter 21 is disposed on the front side (windward side) of the indoor heat exchanger 12 so as to allow air taken in from the room and outdoors to remove dust from the transmitted air. As a result, the filter 21 prevents dust floating in the air from contaminating the indoor heat exchanger 12.

  The filter drive gear 23 is disposed above the lower guide portion 29 with a gap through which the filter 21 passes from the lower guide portion 29. The filter drive gear 23 is engaged with the side end of the filter 21 and is driven to rotate by the filter drive unit 24, thereby moving the filter 21 along the guide unit 25.

  The filter driving unit 24 is a motor controlled by a control unit 80 described later, and is attached to the filter unit frame 22. The filter drive unit 24 rotationally drives the filter drive gear 23 as described above.

<Brush unit 70>
The brush unit 70 has a function of cleaning the filter 21, and is attached to an upper position of the outlet 15 of the main unit 10 at the lower part of the front panel 60. The brush unit 70 is detachable from the outside without interfering with the front panel 60 in a state where the front panel 60 is closed. The brush unit 70 includes a frame portion 71, a brush portion 72, a brush drive portion 73 (see FIG. 7), a brush cleaning portion 74, and a dust receiving portion 75.

  As shown in FIGS. 3 and 4, the frame portion 71 has an elongated outer shape along the longitudinal direction of the air conditioner 1, and the brush portion 72 is detachably attached thereto. 3 is a perspective view of the brush unit 70 as viewed obliquely from above, and FIG. 4 is a top view of the brush unit 70. Openings 71 a and 71 b are formed on the upper surface of the frame portion 71, and the brush portion 72 is exposed to a space above the frame portion 71 through the openings 71 a and 71 b on the upper surface of the frame portion 71. Here, the openings 71 a and 71 b have two openings, a first opening 71 a and a second opening 71 b, which are arranged side by side in the longitudinal direction of the frame portion 71.

  The frame portion 71 is provided with reinforcing members 78a to 78d for reinforcement over the openings 71a and 71b. Here, there are four reinforcing members 78 a to 78 d from the first reinforcing member 78 a to the fourth reinforcing member 78 d, which are arranged side by side in the longitudinal direction of the frame portion 71. The 1st reinforcement member 78a is provided ranging from the front edge part of the 1st opening 71a to the rear edge part, and has the shape extended in the front-back direction. As shown in FIG. 5, the first reinforcing member 78 a is disposed above the core member 76 of the brush portion 71. The first reinforcing member 78a has a shape that is convexly curved toward the core member 76 side, that is, downward, and a portion of the inner end 61 of the first reinforcing member 78a that faces the core member 76 is a core member. It has an arc shape that is recessed upward so as to be away from 76. Here, the end portion of the first reinforcing member 78a located on the core material 76 side, that is, the lower side is referred to as “inner end portion 61”, and the end portion located on the opposite side, that is, on the upper side of the core material 76 is referred to as “outer end”. This will be referred to as “unit 62”. As shown in FIG. 6, the first reinforcing member 78 a has a T-shaped cross-sectional shape, and is arranged so that the tip end portion, that is, the inner end portion 61 is located on the core material 76 side. Therefore, the thickness d1 of the inner end 61 of the first reinforcing member 78a is smaller than the thickness d2 of the outer end 62. The structures of the second reinforcing member 78b, the third reinforcing member 78c, and the fourth reinforcing member 78d are the same as those of the first reinforcing member 78a.

  The frame portion 71 is disposed so as to be positioned below the folded portion of the filter 21 when folded at the lower guide portion 29 (see FIG. 2), and the brushes pass through the openings 71a and 71b on the upper surface of the frame portion 71. The portion 72 is configured to contact the folded portion of the filter 21. The lower surface of the frame portion 71 is open and is closed by the dust receiving portion 75.

  As shown in FIG. 5, the brush portion 72 includes a core member 76 that is rotatably supported by the frame portion 71, and a plurality of wire members 77 provided on the peripheral surface of the core member 76. The wire 77 is formed from a resin material having elasticity. The distance from the surface of the core material 76 to the outer end portion 62 of the first reinforcing member 78a is smaller than the length of the wire rod 77, and the wire rod 77 passes through the openings 71a and 71b of the frame portion 71 and the frame portion 71. Protrudes from the outside. As described above, the wire 77 protruding upward from the openings 71 a and 71 b comes into contact with the filter 21, whereby dust can be removed from the filter 21. The core member 76 has an elongated cylindrical shape having a rotation axis parallel to the longitudinal direction of the air conditioner 1, and is rotationally driven by the brush drive unit 73. Since both end portions and the central portion of the core material 76 are pivotally supported by a bearing (not shown), the wire 77 is provided to avoid the both end portions and the central portion of the core material 76.

  The brush drive unit 73 is a motor controlled by the control unit 80 described later, and rotationally drives the brush unit 72.

  As shown in FIG. 5, the brush cleaning unit 74 is attached to the lower end of the frame unit 71 and has a comb shape that is arranged along the rotation axis direction of the brush unit 72 and contacts the brush unit 72. The brush cleaning unit 74 is provided so as to protrude diagonally forward and upward from the lower end of the back surface of the frame unit 71 toward the brush unit 72, and the wire 77 is comb teeth of the brush cleaning unit 74 with respect to the vertical direction. It is inclined to the opposite side to the direction (see arrow A1 in FIG. 5). Moreover, the brush cleaning part 74 is arrange | positioned so that it may contact the front-end | tip part of the wire 77 in the lower side rather than the core material 76, and the back of the center of the core material 76, and the brush part 72 rotates. Thus, dust can be scraped downward from the brush portion 72.

  The dust receiving portion 75 is disposed below the brush cleaning portion 74 while being attached to the frame portion 71. The dust receiving portion 75 can receive and store the dust scraped off from the brush portion 72 by the brush cleaning portion 74 below the brush cleaning portion 74. Moreover, since the dust receiving part 75 is detachably attached to the frame part 71, the dust stored in the dust receiving part 75 can be easily processed by removing the dust receiving part 75.

[Control unit 80]
The control unit 80 shown in FIG. 7 is divided into an electrical component unit 14 of the air conditioner 1 and an electrical component unit (not shown) of the outdoor unit, and provides instructions from the remote controller 81 and various sensors ( Various air-conditioning operations such as cooling operation and heating operation can be performed based on information from (not shown). Moreover, in this air conditioner 1, the filter cleaning driving | operation which cleans the filter 21 automatically can be performed. Hereinafter, the operation during the filter cleaning operation will be described.

  First, during the air conditioning operation described above, the operation is performed with the filter 21 positioned at the normal position shown in FIG. In this normal position, the filter 21 is disposed along the upper guide portion 26 and the front guide portion 27, and the lower end of the filter 21 is located between the filter drive gear 23 and the lower guide portion 29. The filter cleaning operation is started when a predetermined filter cleaning operation start condition is satisfied, for example, a predetermined time has elapsed since the previous execution of the filter cleaning operation.

  First, from the state of FIG. 2, the controller 80 moves the filter 21 by driving the filter drive unit 24, and drives the brush drive unit 73 to rotate the brush unit 72. Then, the upper part of the filter 21 descends along the upper guide part 26, and the lower part of the filter 21 is folded upward at the lower guide part 29 and rises along the rear guide part 28. At this time, the brush part 72 is also rotated, and dust is removed from the surface of the filter 21 by the upper part of the brush part 72 contacting the surface of the filter 21 through the openings 71a and 71b (see FIG. 3) of the frame part 71. To do. Further, the lower portion of the brush portion 72 is in contact with the brush cleaning portion 74 (see FIG. 5), and the dust attached to the brush portion 72 is caused by the comb teeth of the brush cleaning portion 74 as the brush portion 72 rotates. It is scraped off from the brush part 72 to the dust receiving part 75. When the upper end of the filter 21 reaches the lower guide portion 29, the filter driving unit 24 is stopped and the movement of the filter 21 is stopped.

  Next, the filter drive unit 24 is driven in the reverse direction, and the filter 21 moves in the reverse direction. At this time, the drive of the brush drive unit 73 is stopped. Then, when the filter 21 returns to the normal use position shown in FIG. 2, the filter drive unit 24 is stopped, and the filter cleaning operation is completed.

  During the filter cleaning operation, both the front panel 60 and the horizontal flap 17 are closed.

<Features>
(1)
In the filter cleaning mechanism 40 of the air conditioner 1, the thickness d 1 of the inner end 61 located on the core 76 side of the reinforcing member 78 a is equal to the thickness of the outer end 62 located on the opposite side of the core 76. It is smaller than d2. For this reason, the thickness d1 of the reinforcing members 78a to 78d that are in contact with a portion near the base of the wire 77 is small, and the deformation of the wire 77 due to the reinforcing member 78a being in contact with the wire 77 can be reduced. The same applies to the other reinforcing members 78b-78d.

  The reinforcing members 78a to 78d have a T-shaped cross-sectional shape, and the thickness d2 of the outer end 62 is larger than the thickness d1 of the inner end 61. For this reason, the strength of the reinforcing members 78a to 78d can be improved, and the strength of the frame portion 71 can be improved.

  Thereby, in the filter cleaning mechanism 40 of this air conditioner 1, the strength of the frame portion 71 can be improved and the deformation of the wire 77 of the brush portion 72 can be suppressed.

(2)
In the filter cleaning mechanism 40 of the air conditioner 1, the reinforcing members 78 a to 78 d have a shape curved toward the core member 76, and interference between the filter 21 that contacts the wire 77 and the reinforcing members 78 a to 78 d occurs. It is prevented.

  Further, if the reinforcing members 78a to 78d are curved toward the core member 76 side, the reinforcing members 78a to 78d may come into contact with the root portion of the wire member 77 to greatly deform the wire member 77. In the filter cleaning mechanism 40, the deformation of the wire 77 can be suppressed to be small because the portion of the inner end 61 of the reinforcing members 78a to 78d facing the core member 76 has a recessed shape.

<Other embodiments>
(1)
In the above embodiment, the reinforcing members 78a to 78d have a T-shaped cross-sectional shape. However, as shown in FIG. 8, a reinforcing member having an L-shaped cross-sectional shape is used, and its tip portion is used. May be arranged so as to be located on the core material 76 side.

(2)
In the above embodiment, the reinforcing members 78a to 78d have a T-shaped cross-sectional shape. However, as shown in FIG. 9, a reinforcing member having a triangular cross-sectional shape is used, and the pointed portion is a core. You may arrange | position so that it may be located in the material 76 side. That is, a reinforcing member having a tapered shape that gradually decreases in thickness toward the core member 76 side may be provided.

(3)
The shape of the reinforcing members 78a to 78d is not limited to the T-shape, L-shape, or triangle as described above, but is positioned on the opposite side of the core 76 from the inner end 61 and is thicker than the inner end 61. As long as it has a large outer portion. For example, as shown in FIG. 10, the intermediate portion 63 of the reinforcing member 78 a as the outer portion may have a thickness d <b> 3 larger than the thickness d <b> 1 of the inner end portion 61. In the reinforcing member 78a, the portion from the intermediate portion 63 to the outer end portion 64 is tapered toward the side opposite to the core member 76, and the portion from the intermediate portion 63 to the inner end portion 61 is tapered toward the core member 76 side. It has a shape.

(4)
In the above embodiment, four reinforcing members 78a to 78d are provided, but the number of reinforcing members is not limited to this.

  INDUSTRIAL APPLICABILITY The present invention has an effect of improving the strength of the frame portion and suppressing the deformation of the wire of the brush portion, and is useful as a filter cleaning mechanism and an air conditioner of an air conditioner.

The exploded perspective view of an air harmony machine. The longitudinal cross-sectional view of an air conditioner. The perspective view of a brush unit. The top view of a brush unit. The longitudinal cross-sectional view of a brush unit. Sectional drawing of a reinforcement member. The control block diagram of an air conditioner. Sectional drawing of the reinforcement member which concerns on other embodiment. Sectional drawing of the reinforcement member which concerns on other embodiment. Sectional drawing of the reinforcement member which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner 21 Filter 40 Filter cleaning mechanism 61 Inner edge part 62 Outer edge part (outer part)
63 Middle part (outer part)
71 Frame portion 71a Opening 72 Brush portion 76 Core material 77 Wire material 78a Reinforcing member

Claims (8)

A filter (21) for removing dust from the permeating air;
A frame portion (71) provided with an opening (71a) and a reinforcing member (78a) provided over the opening (71a);
It has a core member (76) supported by the frame part (71), and a plurality of wire members (77) provided on the peripheral surface of the core member (76), and an opening of the frame part (71) ( A brush part (72) for removing dust from the filter (21) by the wire rod (77) protruding outward from the frame part (71) through 71a) coming into contact with the filter (21);
With
The reinforcing member (78a) is located on the inner end (61) positioned on the core (76) side, on the opposite side of the core (76) from the inner end (61), and An outer portion (62, 63) having a thickness greater than that of the end portion (61),
A filter cleaning mechanism (40) of the air conditioner (1). The outer portions (62, 63) are outer end portions (62) located on the opposite side of the core member (76) of the reinforcing member (78a).
The filter cleaning mechanism (40) of the air conditioner (1) according to claim 1. The distance from the surface of the core (76) to the outer end (62) of the reinforcing member (78a) is smaller than the length of the wire (77).
The filter cleaning mechanism (40) of the air conditioner (1) according to claim 2. The reinforcing member (78a) has a T-shaped cross-sectional shape, and is arranged so that a pointed portion thereof is located on the core material (76) side.
The filter cleaning mechanism (40) of the air conditioner (1) according to any one of claims 1 to 3. The reinforcing member (78a) has an L-shaped cross-sectional shape, and is arranged such that a pointed portion thereof is located on the core material (76) side.
The filter cleaning mechanism (40) of the air conditioner (1) according to any one of claims 1 to 3. The reinforcing member (78a) has a triangular cross-sectional shape, and is arranged so that a pointed portion thereof is located on the core material (76) side.
The filter cleaning mechanism (40) of the air conditioner (1) according to any one of claims 1 to 3. Of the inner end (61) of the reinforcing member (78a), the portion facing the core (76) has a shape that is recessed so as to move away from the core (76).
The filter cleaning mechanism (40) of the air conditioner (1) according to any one of claims 1 to 6.   An air conditioner (1) comprising the filter cleaning mechanism (40) according to any one of claims 1 to 7.

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