air conditioning unit

Abstract

To provide an air conditioner which can inhibit size increase of a case while including a brush which moves in an axial direction of a fan.SOLUTION: A wiping mechanism 50 includes: a movable body 60 which is provided between a fan 21 and a guide surface 40 and may move along an axis of the fan 21; and a brush 76 which is provided at the movable body 60 and may clean the fan 21. A fan housing part 33 in a case has a slide part 58 on which the brush 76 slides when the movable body 60 moves. The slide part 58 may guide the brush 76 so that the brush 76 swings in conjunction with movement of the movable body 60 until the brush 76 separates from the fan 21.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an air conditioner equipped with a wiping mechanism for wiping off dust inside a case. [Background technology]

[0002] Air conditioners are widely used to adjust the temperature inside a house, etc. Patent Document 1 discloses a conventional technique related to air conditioners.

[0003] The air conditioner disclosed in Patent Document 1 is equipped with a wiping mechanism that wipes away dust inside the case. The wiping mechanism has a fan that is housed in the case and rotates to blow air into the room, and a brush that is provided so as to be in contact with the fan and that cleans the fan.

[0004] According to this air conditioner, dust adhering to the fan can be removed by rotating the fan with the brush in contact with the fan. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-143961 Summary of the Invention [Problem to be solved by the invention]

[0006] As a wiping mechanism that uses a brush to clean the fan as in the prior art, it is conceivable to adopt, for example, a brush that is narrower than the width of the fan and that moves along the axial direction of the fan.

[0007] However, in order to move the brush away from the fan, it is necessary to move the brush outward from the end face of the fan, and if the width of the space to house the fan is set wide, the case will end up being large.

[0008] An object of the present invention is to provide an air conditioner that is equipped with brushes that move in the axial direction of a fan while preventing the case from becoming large. [Means for solving the problem]

[0009] First, an air conditioner including a case having an air intake port for taking in air from the outside and an air outlet port for blowing the taken-in air to the outside, a fan that rotates to blow air, and a wiping mechanism that can wipe away dust adhering to the fan, the case has a fan storage section that stores the fan, the fan housing portion surrounds a part of the outer periphery of the fan and has a guide surface that guides the air blown by the fan toward the air outlet, the wiping mechanism includes a moving body that is provided between the fan and the guide surface and that is movable along an axis of the fan, a motor that serves as a drive source for moving the moving body, and a brush that is provided on the moving body and that is capable of cleaning the fan; The brush is provided so as to be swingable about a direction along the axis of the fan, the fan housing portion has a slide portion along which the brush slides when the moving body moves, The sliding portion can be guided to swing the brush until it separates from the fan as the moving body moves.

[0010] Second, in the air conditioning apparatus according to the first aspect, the brush preferably has a base on which bristles for sweeping away dust are planted, The base of the brush is slidable relative to the slide.

[0011] Thirdly, in the air conditioner according to the first or second aspect, preferably, a side surface of the base of the brush is capable of coming into contact with the moving body.

[0012] Fourth, preferably the air conditioner according to any one of the first to third aspects, the air conditioner according to claim 3, further comprising a spring that applies force to the brush so that the brush swings in a direction approaching the fan.

[0013] Fifth, preferably, in the air conditioner according to any one of the first to fourth aspects, the air conditioner further comprises a motor case covering the motor, and the slide portion is integrated with the motor case. [Effects of the Invention]

[0014] The case has a sliding section that allows the brush to slide when the moving body moves. The sliding section can guide the brush so that it swings until it is separated from the fan as the moving body moves. In other words, because the sliding section allows the brush to be separated from the fan, the brush can be separated from the fan without increasing the size of the fan storage section. This makes it possible to prevent the case from becoming larger while providing a brush that moves in the axial direction of the fan. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram of an air conditioner according to a first embodiment. [Figure 2] FIG. 2 is a perspective view of an indoor unit of the air conditioner shown in FIG. [Figure 3] FIG. 3 is a diagram illustrating the case of the indoor unit shown in FIG. 2 and the fan housed in the case. [Figure 4] 4A and 4B are diagrams illustrating a drive mechanism of the wiping mechanism. [Figure 5] 4 is a cross-sectional view of the wiping mechanism as seen in a direction along the axial direction of the fan. FIG. [Figure 6] Fig. 6A is a perspective view of a movable body to which a brush and a sheet are attached, and Fig. 6B is a diagram illustrating attachment and detachment of the brush and the sheet to and from the movable body. [Figure 7] 10A and 10B are diagrams illustrating the operation of the wiping mechanism. [Figure 8] 8A and 8B are diagrams illustrating the moving body in the storage position and a cross-sectional view of the moving body in the storage position, respectively. [Figure 9] Fig. 9A is a diagram illustrating a driving force transmission unit (worm) of an air conditioner according to Example 2. Fig. 9B is a perspective view of the driving force transmission unit (worm). [Figure 10] Fig. 10A is a perspective view of the movable body in a storage position with the motor case and motor removed, and Fig. 10B is a diagram illustrating the attachment and detachment of the movable body to and from the driving force transmission unit. DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of the present invention will be described below with reference to the accompanying drawings, in which Fr indicates front, Rr indicates rear, Le indicates left, Ri indicates right, Up indicates top, and Dn indicates bottom.

[0017] Example 1 1 shows an air conditioner 10 according to Example 1. The air conditioner 10 has a cooling function for cooling the indoor space In and a heating function for heating the indoor space In.

[0018] The air conditioner 10 includes an outdoor unit 11 provided outdoors (Ou) and an indoor unit 20 provided indoors (In). The outdoor unit 11 and the indoor unit 20 are connected to each other so that a refrigerant can circulate. Unless otherwise specified below, the direction in which the refrigerant circulates is based on the direction during cooling operation.

[0019] The outdoor unit 11 is equipped with a four-way switching valve 12 that switches the direction of refrigerant circulation during cooling operation and heating operation, a compressor 13 that compresses the refrigerant that has passed through this four-way switching valve 12, an outdoor heat exchanger 14 through which the refrigerant that has been compressed in this compressor 13 and has become high temperature and high pressure flows, an outdoor fan 15 that blows air toward this outdoor heat exchanger 14, and an expansion valve 16 that decompresses the refrigerant that has passed through the outdoor heat exchanger 14.

[0020] The indoor unit 20 is used by hanging it on a wall Wa inside the room In. A case 30 of the indoor unit 20 is fixed to the wall Wa via a support plate. The case 30, which extends in the left-right direction, houses a fan 21 that takes in air from the room In into the case 30 and blows it out into the room In, and a heat exchanger 27 that exchanges heat with the air taken in by the fan 21.

[0021] During cooling operation, the refrigerant, which has been heated to a high temperature and pressure by the compressor 13, exchanges heat with outside air in the outdoor heat exchanger 14 and releases heat. At this time, the outdoor fan 15 operates to force the outside air to flow around the periphery of the outdoor heat exchanger 14, promoting heat exchange. After passing through the outdoor heat exchanger 14 and releasing heat, the refrigerant is decompressed by the expansion valve 25 and its temperature drops. The cooled refrigerant is sent to the indoor unit 20.

[0022] Air is introduced into the case 30 of the indoor unit 20 by operating the fan 21. The introduced air passes around the periphery of the heat exchanger 27 and is sent to the indoor space In. A refrigerant cooled in the outdoor unit 11 is supplied to the heat exchanger 27. The air passing around the periphery of the heat exchanger 27 exchanges heat with the refrigerant and is cooled. The cooled air is sent to the indoor space In.

[0023] During heating operation, the four-way switching valve 12 switches the flow path of the refrigerant, circulating the refrigerant in the opposite direction to that during cooling operation.

[0024] 1 and 2, an air intake port 31 is opened on the top surface of the case 30, which can take in air from the outside (indoors In). An air outlet 32 ​​is opened in the lower front part of the case 30, which can blow air out to the outside (indoors In). The air outlet 32 ​​is provided with up-and-down louvers 28 that can open and close the air outlet 32 ​​and adjust the direction in which the air is blown out in the vertical direction.

[0025] See Figure 3. Behind the up-down louvers 28 (see Figure 2), left-right louvers 29 are provided that can adjust the direction in which air is blown out in the left-right direction.

[0026] [Case storage area, guide surface, side] Case 30 has a fan storage section 33 that stores fan 21. Fan storage section 33 has a guide surface 40 that surrounds part of the outer periphery of fan 21 and guides the air blown by fan 21 toward air outlet 32, and two side surfaces 34, 35 located next to end surfaces 22, 23 on either side of fan 21.

[0027] Guide surface 40 is formed along the longitudinal direction of case 30, along the direction in which axis C of fan 21 extends. A space defined by guide surface 40 of case 30, two side surfaces 34, 35, and fan 21, and through which blown air can flow, is defined as air passage 36 (see FIG. 5).

[0028] [Wiping mechanism] Please refer to Figures 4 and 5. The case 30 is provided with a wiping mechanism 50 that can wipe away dust adhering to the inside of the case 30 (the fan 21 and the guide surface 40).

[0029] [Drive unit] The drive unit 51 of the wiping mechanism 50 has a motor 52 which is the drive source for the moving body 60 described later and operates when electricity is applied, a gear unit 53 which is capable of transmitting the drive force of the motor 52 and is composed of multiple gears, and a drive force transmission unit 54 which is connected to the motor 52 and transmits the drive force of the motor 52 to the moving body.

[0030] [Driving force transmission section] The driving force transmission section 54 includes a driving pulley 55 having a spur gear formed on a part thereof and driven to rotate by the gear section 53, a driven pulley (not shown) provided on the opposite side of the driving pulley 55 (based on the axial direction of the fan 21), and a toothed rope 56 (synchro mesh rope) looped around the driving pulley 55 and the driven pulley.

[0031] [Transmission unit storage section] 4 and 5, the guide surface 40 is formed with a transmission unit housing 41 that is recessed so as to open toward the fan 21 and houses the drive force transmission unit 54. The transmission unit housing 41 is provided along the direction of the axis C of the fan 21, from the right end (the housing side described below) of the guide surface 40 to the left end (the opposite side to the housing side). With the air flow direction of the air passage 36 as the reference, the surface of the guide surface 40 that is upstream of the transmission unit housing 41 is referred to as an upstream guide surface 43, and the surface of the guide surface 40 that is downstream of the transmission unit housing 41 is referred to as a downstream guide surface 44.

[0032] The transmission unit storage section 41 is covered by a cover 42. A surface 42a of the cover 42 smoothly connects the upstream guide surface 43 and the downstream guide surface 44 (they are continuous without protruding or recessing from the guide surface 40). In other words, the surface 42a of the cover 42, together with the upstream guide surface 43 and the downstream guide surface 44, constitutes part of the guide surface 40. A back surface 42b of the cover 42 has ribs 42c that protrude toward the transmission unit storage section 41 and reinforce the cover 42.

[0033] A gap G is defined between the upstream guide surface 43 and the surface 42a of the cover 42. The gap G is formed in the direction of the axis C of the fan 21 with a substantially uniform width.

[0034] [Moving object] 5, 6A, and 6B. The wiping mechanism 50 includes a movable body 60 that is movable along the axis C of the fan 21 in the air passage 36 (between the fan 21 and the guide surface 40). The movable body 60 is integrally configured with a driven part 61 that is connected to the toothed rope 56 and that is driven in the direction of the axis C of the fan 21 when the drive part 51 is operated, a pair of arms 62 that extend from the driven part 61 through the gap G to the air passage 36, and a support part 70 that is supported by the pair of arms 62 and is formed along the guide surface 40.

[0035] In other words, of the moving body 60, the driven part 61 is a part stored in the transmission part storage part 41, the support part 70 is a part located in the air passage 36, and the pair of arms 62, 62 are parts that connect the driven part 61 and the support part 70. Note that the pair of arms 62, 62 may be eliminated, and the support part 70 and the driven part 61 may be connected by a magnet with the guide surface 40 sandwiched therebetween.

[0036] When the ribs 42c are formed at positions where they can come into contact with the second guide rollers, the ribs 42c for reinforcing the cover 42 can guide the second guide rollers.

[0037] [Driver part] The driven part 61 includes a first guide roller 64 that can roll on the upper or lower surface of the transmission part housing part 41 , and a second guide roller 63 that can roll on the rib 42 c or the transmission part housing part 41 .

[0038] [Support part] 6B, the support portion 70 has a rectangular frame shape with its longitudinal direction coinciding with the air flow direction of the air passage 36. The support portion 70 is integrally formed of a pair of vertical frame portions 71, 71 supported by a pair of arms 62, 62, an upper frame portion 73 connecting the upper ends of the pair of vertical frame portions 71, 71, and a lower frame portion 74 connecting the lower ends of the pair of vertical frame portions 71, 71.

[0039] [Wiping section] The wiping unit 80 is attached to the support unit 70. The wiping unit 80 has a rectangular plate-shaped main body 81 that can close the frame of the support unit 70. The main body 81 has an insertion portion 82 that can be inserted into the upper frame portion 73 and a locking portion 83 that can be locked to the lower frame portion 74. The pair of vertical frame portions 71, 71 have support edges 72, 72 that can support the main body 81.

[0040] Sheet The main body 81 is provided with a sheet 84 that can come into contact with the guide surface 40 and wipe away dust adhering to the guide surface 40. The sheet 84 can be made of nonwoven fabric, sponge, or the like.

[0041] Brush The main body 81 is provided with a brush 76 that can come into contact with the outer peripheral edge 24 (see FIG. 5) of the fan 21 and wipe away dust adhering to the outer peripheral edge 24. The brush 76 is provided so as to be able to swing relative to the main body 81. The center line of the swing is a direction along the axis C of the fan 21. The brush 76 has a base 78 on which resin bristles 77 that wipe away dust from the fan 21 are attached.

[0042] [Spring] The brush 76 is provided with a tension spring 79. One end of the tension spring 79 is fixed to the base 78 of the brush 76, and the other end of the tension spring 79 is fixed to the main body 81. The tension spring 79 applies force to the brush 76 so that the brush 76 swings in a direction approaching the fan 21.

[0043] [Wiping mechanism operation] Please refer to Figures 4 and 7. The air conditioner 10 starts cleaning by the wiping mechanism 50, for example, after receiving an operation stop signal or a cleaning instruction signal from an operator.

[0044] When the motor 52 is operated, the gear portion 53 and the drive pulley 55 rotate. When the drive pulley 55 rotates, the moving body 60 connected to the toothed rope 56 moves in the left-right direction.

[0045] Sheet 84 is in contact with guide surface 40, and brush 76 is in contact with fan 21. In this state, as movable body 60 moves along gap G, dust adhering to guide surface 40 is wiped away by sheet 84, and dust adhering to fan 21 is also wiped away by brush 76. At this time, by rotating fan 21 (counterclockwise in FIG. 5), the entire outer periphery 24 of fan 21 can be cleaned. Note that the bottom surface (not shown) of base 78 of brush 76 is in contact with main body 81 during cleaning.

[0046] The moving body 60 has both the sheet 84 and the brush 76. Therefore, the brush 76 drops dust from the fan 21 onto the guide surface 40, and the sheet 84 can wipe it away.

[0047] Since the left and right louvers 29 (see Figure 3) are installed downstream of the wiping mechanism 50 in the air flow, it is difficult to reach into the air passage 36 between the fan 21 and the guide surface 40 to clean it. Therefore, by providing a wiping mechanism 50 that can move along the guide surface 40, dust adhering to the guide surface 40 can be easily removed.

[0048] [Storage position of the moving object] 3 and 8A. When cleaning by the wiping mechanism 50 is completed, the moving body 60 is stored. The position where the moving body 60 is stored while the wiping mechanism 50 is stopped is referred to as the stored position. The stored position of the moving body 60 is set at the end 36a of the air passage 36 with the direction of the axis C of the fan 21 as the reference.

[0049] Hereinafter, the side where the movable body 60 is stored will be referred to as the storage side (right side) with reference to the direction of the axis C of the fan 21. Note that the storage position may be the end 36b (see FIG. 3) on the opposite side (left side) of the storage side.

[0050] [Motor position] The motor 52 (see FIG. 4) is located at the end 36a on the storage side of the air passage 36, but may be located at the end 36b on the opposite side of the air passage 36. In other words, the storage position of the movable body 60 and the position of the motor 52 may be on opposite sides to each other.

[0051] [Platform storage location] The case 30 has a board storage section 37 that stores a control board (not shown) that can control the motor 52. The board storage section 37 is formed on the storage side (right side) of the fan storage section 33.

[0052] [Motor case] See Figure 8A. The motor 52 (see Figure 4), gear unit 53, and drive pulley 55 are covered by a motor case 57. The motor case 57 is integrally formed with an upper wall portion 57a ​​that is formed along the guide surface 40 and covers the upper side of the motor 52, and a side wall portion 57b that extends from the left edge of the upper wall portion 57a ​​toward the guide surface 40 and covers the left side of the motor 52. The right edge of the upper wall portion 57a ​​is in contact with the side surface 34 on the storage side of the fan housing section 33. It can also be said that the side surface 34 covers the right side of the motor 52.

[0053] [Storage method for moving objects] A slide portion 58 along which the base 78 of the brush 76 slides when the movable body 60 moves toward the storage position (right side) is formed on the edge of the upper wall portion 57a ​​of the motor case 57. The slide portion 58 can guide the brush 76 so that the brush 76 swings until the brush 76, which is in contact with the fan 21, separates from the fan 21.

[0054] For example, the slide portion 58 extends in a straight line obliquely to the direction of the axis C of the fan 21, but may also be curved. Note that the slide portion 58 may be part of a member that is supported by the case storage portion 33 and is separate from the motor case 57.

[0055] Brush position in stowed position 8B, when the movable body 60 is in the storage position, the side surface 78a of the base 78 of the brush 76 is in contact with the movable body 60 (the vertical frame portions 71, 71 of the support portion 70). In other words, the brush 76 is completely reclined.

[0056] [Effects of Example 1] The effects of the first embodiment described below are also exhibited in the second embodiment described below.

[0057] 3 and 8A, the storage position of the moving body 60 is set at the end 36a of the air passage 36 with reference to the direction of the axis C of the fan 21. Therefore, the moving body 60 is unlikely to create resistance to the air flowing through the air passage 36.

[0058] Additionally, the case 30 has a sliding portion 58 along which the base 78 of the brush 76 can slide when the movable body 60 moves toward the storage position (right side). The sliding portion 58 can guide the brush 76 to swing until it separates from the fan 21 as the movable body 60 moves. That is, rather than simply moving the brush 76 in the axial direction of the fan 21, the sliding portion 58 can separate the brush 76 from the fan 21. This allows the brush 76 to be separated from the fan 21 without increasing the size of the fan storage section 33 in the axial direction of the fan 21. In this embodiment, the position of the sliding portion 58 is set so that the brush 76 does not protrude from the end surface 22 of the fan 21 (see FIG. 3 ) when the movable body 60 is in the storage position. However, the position of the sliding portion 58 may be shifted toward the storage side so that a portion of the brush 76 protrudes from the end surface 22 (as long as the entire brush 76 does not protrude from the end surface 22, the effect of this embodiment can be achieved).

[0059] When the brush 76 swings away from the fan 21 as the movable body 60 moves, the amount of penetration of the brush 76 into the outer circumferential edge 24 of the fan 21 decreases, thereby reducing the contact noise between the fan 21 and the brush 76.

[0060] In addition, the slide portion 58 is formed on the edge of the upper wall portion 57a ​​of the motor case 57. That is, the slide portion 58 is integrated with the motor case 57, which reduces the number of parts.

[0061] In addition, the base 78 of the brush 76 is slidable relative to the sliding portion 58. Although the bristles 77 of the brush 76 may be configured to slide on the sliding portion 58, the brush 76 swings more smoothly when the base 78 of the brush 76 slides.

[0062] In addition, when the movable body 60 is in the storage position, the side surface 78a of the base 78 of the brush 76 is in contact with the movable body 60 (the vertical frame portion of the support part 70). Because the brush 76 is completely tilted relative to the movable body 60, it is unlikely to create resistance to the air flowing through the air passage 36. Furthermore, because the brush 76 is completely tilted, it is not in contact with the fan 21, which prevents noise.

[0063] In addition, the brush 76 is provided with a tension spring 79 that applies force to the brush 76 so that the brush 76 swings in a direction approaching the fan 21. Although the brush 76 may be set to swing in a direction approaching the fan 21 due to its own weight when in the stored position, the use of the tension spring 79 allows the brush 76 to swing more reliably.

[0064] See Figure 4. The motor 52 is located at the end 36a on the storage side of the air passage 36. The moving body 60 in the storage position and the motor 52 are located close to each other. Maintenance of the wiping mechanism 50 can be performed only on the storage side of the case 30, making maintenance easy.

[0065] See Figure 3. The board housing section 37 is formed on the storage side (right side) of the fan housing section 33. That is, the control board is located very close to the motor 52. Maintenance of the wiping mechanism 50 and the control board can be performed only on the storage side of the case 30, making maintenance easy. The wiring between the motor 52 and the control board can also be shortened.

[0066] 6B, the main body 81 includes the brush 76 and the sheet 84. The main body 81 is detachable from the support part 70 of the movable body 60. This allows the sheet 84 and the brush 76 to be detachable from the movable body 60. Although the main body 81 includes the brush 76 and the sheet 84 in the first embodiment and the second embodiment described below, the main body 81 may include only the brush 76.

[0067] <Example 2> 9A and 9B show an air conditioner 10A according to Example 2. The same components as those in the air conditioner 10 of Example 1 are given the same reference numerals as in Example 1, and descriptions thereof will be omitted.

[0068] In the second embodiment, a worm 59 is employed that is housed in a transmission unit housing 41A and can be driven by a gear unit 53 (see FIG. 4), instead of the driving force transmission unit 54 (toothed rope 56, drive pulley 55) (see FIG. 4) of the first embodiment. A driven unit 61A of a moving body 60A includes a rack gear 65 that meshes with the worm 59.

[0069] When the motor 52 (see FIG. 6) operates, it rotates a worm 59 (driving force transmission part) that is provided across the width of the case 30. The driven part 61A has a rack gear 65 that meshes with the worm 59, and therefore, as the worm 59 rotates, the moving body 60A moves in the left-right direction.

[0070] 9A, the rack gear 65 of the moving body 60 is positioned above the worm 59 and is in mesh with the worm 59.

[0071] 10A and 10B, the transmission unit storage section 41 is covered by a cover 42 except for the end on the storage side. That is, an opening 45 is formed at the end on the storage side of the transmission unit storage section 41. The width of this opening 45 is set wider than the width of the driven section 61 of the moving body 60.

[0072] With the above configuration, when the moving body 60 in the storage position is slid forward, the worm 59 and the rack gear 65 are disengaged, and the moving body 60 in the storage position can be removed from the worm 59 with the transmission unit storage section 41 covered with the cover 42. In a similar manner, the moving body 60 can be attached to the worm 59. Therefore, with the transmission unit storage section 41 covered with the cover 42, the moving body 60 in the storage position can be attached to and detached from the worm 59 (driving force transmission section 54).

[0073] Returning to FIG. 6B , the air conditioner 10 of the first embodiment also allows the movable body 60, which is in the stored position relative to the toothed rope 56 (driving force transmission unit), to be attached and detached. When the wiping unit 80 is removed from the support unit 70, the head of the screw 91 is exposed from within the frame of the support unit 70. The head of the screw 91 faces forward. That is, the shaft of the screw 91 (not shown) extends in the front-to-rear direction (the depth direction of the case 30). The driven unit 61 and both ends 56 a, 56 a of the toothed rope 56 are overlapped with each other in the front-to-rear direction and fixed by the screw 91. When the screw 91 is removed, the fixation between the both ends 56 a, 56 a of the toothed rope 56 and the movable body 60 is released. Thereafter, the movable body 60 can be removed from the toothed rope 56 by moving the movable body 60 forward.

[0074] 5, downstream end 84a of sheet 84 is located vertically below the contact point between bristles 77 of brush 76 and outer periphery 24 of fan 21. Therefore, downstream end 84a of sheet 84 can reliably wipe away dust adhering to fan 21.

[0075] It should be noted that the present invention is not limited to the examples provided that the functions and effects of the present invention are achieved. [Industrial Applicability]

[0076] The air conditioner of the present invention is suitable for use as a home air conditioner. [Explanation of symbols]

[0077] 10...Air conditioner 21...Fan 22...Fan housing end face 23...Opposite end of fan 30…cases 31...Air intake 32...Air outlet 33...Fan storage section 40...Guide surface 50...wiping mechanism 52...Motor 57...Motor case 58...Slide section 60...Mobile 76...Brush 77...Brush bristles 78...brush base, 78a...side surface of base C...Fan axis

Claims

1. An air conditioning device comprising: a case having an air intake port for taking in air from outside and an air outlet port for blowing the taken-in air to the outside; a fan that rotates to blow air; and a wiping mechanism that can wipe away dust adhering to the fan, the case has a fan storage section that stores the fan, the fan housing portion surrounds a part of the outer periphery of the fan and has a guide surface that guides the air blown by the fan toward the air outlet, the wiping mechanism includes a moving body that is provided between the fan and the guide surface and that is movable along an axis of the fan, a motor that serves as a drive source for moving the moving body, and a brush that is provided on the moving body and that is capable of cleaning the fan; The brush is provided so as to be swingable about a direction along the axis of the fan, the fan housing portion has a slide portion along which the brush slides when the moving body moves, The sliding portion is capable of guiding the brush to swing until it separates from the fan as the movable body moves.

2. The brush has a base with bristles for sweeping away dust, The air conditioner according to claim 1 , wherein the base of the brush is slidable relative to the slide portion.

3. 3. The air conditioner according to claim 2, wherein a side surface of the base of the brush is capable of coming into contact with the moving body.

4. 4. The air conditioner of claim 3, further comprising a spring that applies a force to said brush so that said brush swings toward said fan.

5. a motor case covering the motor; The air conditioner according to any one of claims 1 to 4, wherein the slide portion is integrated with the motor case.

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