air conditioning unit

Abstract

To provide an air conditioner including a wiping mechanism which is less likely to cause resistance to air sent by a fan.SOLUTION: A space which is defined by a guide surface 40 of a fan housing part 33, two side surfaces 34, 35, and a fan 21 and allows air blown to flow therethrough serves as a draft trunk 36. A wiping mechanism 50 includes a movable body 60 which may move along an axis C of the fan 21 in the draft trunk 36. A position where the movable body 60 is stored when the wiping mechanism 50 is stopped is set as a storage position. The storage position is set at an end 36a of the draft trunk 36 with respect to an axis C direction of the fan 21 as the reference.SELECTED DRAWING: Figure 8

Description

Technical Field

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

Background Art

[0002] Air conditioners are widely used to adjust the temperature in rooms such as houses. As a prior art related to air conditioners, there is a technique disclosed in Patent Document 1.

[0003] The air conditioner disclosed in Patent Document 1 includes a wiping mechanism for wiping dust inside the case. The wiping mechanism includes a fan that is housed in the case and blows air into the room by rotating, and a brush that is provided so as to be able to contact the fan and is for cleaning the fan.

[0004] According to this air conditioner, by rotating the fan with the brush in contact with the fan, the dust attached to the fan can be removed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] As a wiping mechanism for cleaning a fan using a brush as in the prior art, for example, a configuration in which a brush having a width smaller than the width of the fan is adopted and this brush is attached to a moving body that can move along the axial direction of the fan can be considered. However, this moving body may become a resistance to the air sent out by the fan during the operation of the air conditioner.

[0007] An object of the present invention is to provide an air conditioner provided with a wiping mechanism that is less likely to become a resistance to the air sent out by the fan. [Means for solving the problem]

[0008] Firstly, there is a case in which an air intake that can take in air from the outside and an air outlet that can blow the taken-in air out to the outside are opened, An air conditioning system comprising a wiping mechanism capable of wiping away dust from inside the case, The aforementioned case has a fan housing section that houses a fan that blows air by rotating, The fan housing has a guide surface that surrounds a part of the outer circumference of the fan and guides the air blown by the fan toward the air outlet, and two side surfaces located adjacent to the end faces on both sides of the fan. If the space defined by the guide surface of the fan housing, the two side surfaces, and the fan, and through which the blown air can flow, is defined as the airflow path, The wiping mechanism includes a movable body that can move along the axis of the fan in the air passage. If the position in which the moving body is stored while the wiping mechanism is stopped is defined as the storage position, An air conditioning system is provided in which the storage position is set at the end of the air passage with reference to the axial direction of the fan.

[0009] Secondly, preferably, the air conditioning system according to the first description, wherein the wiping mechanism includes a motor that operates when power is supplied, If we consider the side where the movable body is stored as the storage side, with respect to the axial direction of the fan, then the motor is located at the end of the airflow passage on the storage side.

[0010] Thirdly, preferably, the air conditioning device according to the second, wherein the case has a circuit board housing section that houses a control board capable of controlling the motor, The circuit board housing section is formed on the housing side relative to the fan housing section.

[0011] Fourth, preferably, the air conditioning system according to the second or third, wherein the wiping mechanism includes a drive force transmission unit connected to the motor and transmitting the driving force of the motor to the moving body, The guide surface has a recessed section that opens toward the fan, and a transmission section housing is formed therein, in which the drive force transmission section is housed. The transmission unit housing is covered by a cover except for the end on the storage side, and an opening is formed at the end on the storage side of the transmission unit housing. With the transmission unit housing covered by the cover, the movable body in the storage position is detachable from the drive force transmission unit through the opening.

[0012] Fifth, preferably, an air conditioning device according to any one of the first to fourth, wherein the moving body includes a sheet that can contact the guide surface and wipe away dust adhering to the guide surface, and / or a brush that can contact the fan and wipe away dust adhering to the fan. The sheet and / or the brush are detachable from the moving body. [Effects of the Invention]

[0013] The wiping mechanism includes a movable body that can move along the airflow path in the direction of the fan's axis. The position in which the movable body is stored when the wiping mechanism is stopped is defined as the stored position. The stored position is set at the end of the airflow path with respect to the fan's axis. Therefore, the movable body (wiping mechanism) does not create much resistance to the air blown out by the fan. [Brief explanation of the drawing]

[0014] [Figure 1] This is a schematic diagram of the air conditioning system according to Example 1. [Figure 2] Figure 1 is a perspective view of the indoor unit of the air conditioning system shown. [Figure 3] Figure 2 illustrates the indoor unit case and the fan housed within it. [Figure 4] This is a diagram illustrating the drive mechanism of the wiping mechanism. [Figure 5] It is a cross-sectional view of the wiping mechanism as seen from a direction along the axial direction of the fan. [Figure 6] FIG. 6A is a perspective view of a moving body to which a brush and a sheet are attached. FIG. 6B is a view for explaining attachment and detachment of the brush and the sheet to and from the moving body. [Figure 7] It is a view for explaining the operation of the wiping mechanism. [Figure 8] FIG. 8A is a view for explaining a moving body in a storage position. FIG. 8B is a cross-sectional view of the moving body in the storage position. [Figure 9] FIG. 9A is a view for explaining a driving force transmission part (worm) of an air conditioner according to Embodiment 2. FIG. 9B is a perspective view of the driving force transmission part (worm). [Figure 10] FIG. 10A is a perspective view of a moving body in a storage position with a motor case and a motor removed. FIG. 10B is a view for explaining attachment and detachment of the moving body to and from the driving force transmission part.

Mode for Carrying Out the Invention

[0015] Embodiments of the present invention will be described below based on the accompanying drawings. In the drawings, Fr indicates front, Rr indicates rear, Le indicates left, Ri indicates right, Up indicates up, and Dn indicates down.

[0016] <Example 1> In FIG. 1, an air conditioner 10 according to Example 1 is shown. The air conditioner 10 has a cooling function for cooling an indoor space In and a heating function for heating the indoor space In.

[0017] 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. Hereinafter, unless otherwise specified, the direction in which the refrigerant circulates is based on the cooling operation.

[0018] The outdoor unit 11 includes a four-way switching valve 12 that switches the direction of refrigerant circulation during cooling and heating operations, a compressor 13 through which the refrigerant that has passed through the four-way switching valve 12 flows and compresses the refrigerant, an outdoor heat exchanger 14 through which the refrigerant that has been compressed in the compressor 13 and has become high temperature and high pressure flows, an outdoor fan 15 that blows air toward the outdoor heat exchanger 14, and an expansion valve 16 that reduces the pressure of the refrigerant that has passed through the outdoor heat exchanger 14.

[0019] The indoor unit 20 is used by hanging it on wall Wa indoors. The case 30 of the indoor unit 20 is fixed to wall Wa via a support plate. The case 30, which extends in the left-right direction, houses a fan 21 that takes in indoor air and blows it back into the case 30, and a heat exchanger 27 that exchanges heat with the air taken in by the fan 21.

[0020] During cooling operation, the refrigerant, which has been heated to high temperature and pressure by the compressor 13, exchanges heat with the outside air in the outdoor heat exchanger 14 and releases heat. At this time, the outdoor fan 15 operates to forcibly circulate the outside air around the outer perimeter of the outdoor heat exchanger 14, promoting heat exchange. The refrigerant that has passed through the outdoor heat exchanger 14 and released heat is depressurized in the expansion valve 25, and its temperature drops. The refrigerant with reduced temperature is sent to the indoor unit 20.

[0021] Air is introduced into the case 30 of the indoor unit 20 by the operation of the fan 21. The introduced air passes around the outer perimeter of the heat exchanger 27 and is blown into the indoor air intake. The heat exchanger 27 is supplied with refrigerant that has been cooled in the outdoor unit 11. The air passing around the outer perimeter of the heat exchanger 27 exchanges heat with the refrigerant and is cooled. The cooled air is then blown into the indoor air intake.

[0022] During heating operation, the four-way switching valve 12 switches the refrigerant flow path, circulating the refrigerant in the opposite direction to that during cooling operation.

[0023] Refer to Figures 1 and 2. An air intake 31 is provided on the top surface of the case 30 to allow air to be taken in from the outside (indoors). An air outlet 32 ​​is provided on the front lower part of the case 30 to allow air to be blown out to the outside (indoors). The air outlet 32 ​​is provided with an upper and lower louver 28 that can be opened and closed and the direction of air blown out can be adjusted vertically.

[0024] Refer to Figure 3. Behind the vertical louvers 28 (see Figure 2), there are horizontal louvers 29 that can adjust the direction of airflow in the left-right direction.

[0025] [Case storage area, guide surface, sides] The case 30 has a fan housing section 33 that houses the fan 21. The fan housing section 33 has a guide surface 40 that surrounds a part of the outer circumference of the fan 21 and guides the air blown by the fan 21 toward the air outlet 32, and two side surfaces 34 and 35 located next to the end faces 22 and 23 on both sides of the fan 21.

[0026] The guide surface 40 is formed along the longitudinal direction of the case 30, in the direction in which the axis C of the fan 21 extends. The space defined by the guide surface 40 of the case 30, the two side surfaces 34 and 35, and the fan 21, through which the blown air can flow, is called the air passage 36 (see Figure 5).

[0027] [Wiping mechanism] Refer to Figures 4 and 5. The case 30 is equipped with a cleaning mechanism 50 that can wipe away dust adhering to the inside of the case 30 (fan 21 and guide surface 40).

[0028] [Drive unit] The drive unit 51 of the wiping mechanism 50 includes a motor 52 that is the drive source for the mobile body 60 (described later) and operates when power is supplied, a gear unit 53 that is capable of transmitting the driving force of the motor 52 and is composed of multiple gears, and a drive force transmission unit 54 that is connected to the motor 52 and transmits the driving force of the motor 52 to the mobile body.

[0029] [Drive force transmission section] The drive force transmission unit 54 includes a drive pulley 55, which has a spur gear formed in part and is driven and rotated by a gear unit 53; a driven pulley (not shown) provided on the opposite side of the drive pulley 55 (relative to the axial direction of the fan 21); and a toothed rope 56 (synchronous mesh rope) stretched in an annular manner between the drive pulley 55 and the driven pulley.

[0030] [Transmission Unit Storage Unit] Refer to Figures 4 and 5. The guide surface 40 has a recessed section 41 that opens toward the fan 21 and houses the drive force transmission section 54. The transmission section 41 is provided along the axis C of the fan 21, extending from the right end (storage side, described later) to the left end (opposite side of the storage side) of the guide surface 40. With respect to the airflow direction of the air passage 36, the surface of the guide surface 40 upstream of the transmission section 41 is designated as the upstream guide surface 43, and the surface downstream of the transmission section 41 is designated as the downstream guide surface 44.

[0031] The transmission unit housing 41 is covered by a cover 42. The surface 42a of the cover 42 smoothly connects the upstream guide surface 43 and the downstream guide surface 44 (it is continuous with respect to the guide surface 40 without protruding or recessing). That is, the surface 42a of the cover 42 together with the upstream guide surface 43 and the downstream guide surface 44 constitute a part of the guide surface 40. The back surface 42b of the cover 42 has ribs 42c that protrude toward the transmission unit housing 41 and reinforce the cover 42.

[0032] A gap G is provided between the upstream guide surface 43 and the surface 42a of the cover 42. The gap G is formed with approximately the same width and extends along the axis C of the fan 21.

[0033] [Mobile] Refer to Figures 5, 6A, and 6B. The wiping mechanism 50 includes a movable body 60 that can move 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 composed of a driven part 61 connected to a toothed rope 56 and driven in the direction of the axis C of the fan 21 by the operation of a drive unit 51, a pair of arms 62, 62 extending from the driven part 61 through the gap G to the air passage 36, and a support part 70 supported by the pair of arms 62, 62 and formed along the guide surface 40.

[0034] In other words, of the movable body 60, the driven part 61 is the part housed in the transmission part housing 41, the support part 70 is the part located in the air passage 36, and the pair of arms 62, 62 are the parts that connect the driven part 61 and the support part 70. Alternatively, the pair of arms 62, 62 may be omitted, and the support part 70 and the driven part 61 may be connected by magnets with the guide surface 40 in between.

[0035] If the rib 42c is formed in a position where it can contact the second guide roller, the rib 42c for reinforcing the cover 42 can guide the second guide roller.

[0036] [Driver part] The driven unit 61 includes a first guide roller 64 that can roll against the upper or lower surface of the transmission unit housing 41, and a second guide roller 63 that can roll against the rib 42c or the transmission unit housing 41.

[0037] [Support part] Refer to Figure 6B. The support section 70 has a rectangular frame shape with the airflow direction of the air passage 36 being the longitudinal direction. The support section 70 is integrally composed of a pair of vertical frame sections 71, 71 supported by a pair of arm sections 62, 62, an upper frame section 73 connecting the upper ends of the pair of vertical frame sections 71, 71, and a lower frame section 74 connecting the lower ends of the pair of vertical frame sections 71, 71.

[0038] [Wiping section] A wiping section 80 is attached to a support section 70. The wiping section 80 has a rectangular plate-shaped main body 81 that can close the frame of the support section 70. The main body 81 has an insertion section 82 that can be inserted into an upper frame section 73 and a locking section 83 that can be locked into a lower frame section 74. A pair of vertical frame sections 71, 71 have support edges 72, 72 that can support the main body 81.

[0039] [Sheet] The main body 81 is equipped with a sheet 84 that can contact 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.

[0040] [Brush] The main body 81 is equipped with a brush 76 that can contact the outer edge 24 (see Figure 5) of the fan 21 and wipe away dust adhering to the outer edge 24. The brush 76 is swingable relative to the main body 81. The centerline of the swing is in the direction along the axis C of the fan 21. The brush 76 has a base 78 to which resin bristles 77 for wiping dust from the fan 21 are attached.

[0041] [spring] The brush 76 is equipped 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 it swings toward the fan 21.

[0042] [Operation of the wiping mechanism] Refer to Figures 4 and 7. The air conditioning unit 10 starts cleaning with the wiping mechanism 50, for example, after receiving a stop signal or a cleaning instruction signal from an operator.

[0043] When the motor 52 is activated, the gear unit 53 and the drive pulley 55 rotate. When the drive pulley 55 rotates, the movable body 60 connected to the toothed rope 56 moves from side to side.

[0044] The sheet 84 is in contact with the guide surface 40, and the brush 76 is in contact with the fan 21. In this state, as the moving body 60 moves along the gap G, dust adhering to the guide surface 40 is wiped away by the sheet 84, and dust adhering to the fan 21 is also wiped away by the brush 76. At this time, by rotating the fan 21 (counterclockwise in Figure 5), the entire outer edge 24 of the fan 21 can be cleaned. Note that the bottom surface (not shown) of the base 78 of the brush 76 is in contact with the main body 81 during cleaning.

[0045] The moving body 60 has both a sheet 84 and a brush 76. Therefore, the brush 76 can drop dust from the fan 21 onto the guide surface 40, and the sheet 84 can wipe it away.

[0046] Since the left and right louvers 29 (see Figure 3) are installed downstream of the airflow of the wiping mechanism 50, it is difficult to reach into the air passage 36 between the fan 21 and the guide surface 40 to clean it. 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.

[0047] [Storage location of the mobile unit] Refer to Figures 3 and 8A. When cleaning by the wiping mechanism 50 is completed, the movable body 60 is retracted. The position in which the movable body 60 is retracted while the wiping mechanism 50 is stopped is defined as the retracted position. The retracted position of the movable body 60 is set at the end 36a of the air passage 36 with respect to the axis C direction of the fan 21.

[0048] Hereafter, with the axis C of the fan 21 as the reference, the side on which the movable body 60 is stored will be referred to as the storage side (right side). Note that the storage position may also be at the end 36b on the opposite side (left side) of the storage side (see Figure 3).

[0049] [Motor position] The motor 52 (see Figure 4) is located at the storage end 36a of the airflow passage 36, but it may also be located at the opposite end 36b of the airflow passage 36. In other words, the storage position of the mobile body 60 and the position of the motor 52 may be on opposite sides of each other.

[0050] [Location of the circuit board housing] The case 30 has a circuit board housing section 37 that houses a control board (not shown) capable of controlling the motor 52. The circuit board housing section 37 is formed on the housing side (right side) relative to the fan housing section 33.

[0051] [Motor case] Refer to Figure 8A. The motor 52 (see Figure 4), the gear section 53, and the drive pulley 55 are covered by the motor case 57. The motor case 57 is formed to follow the guide surface 40 and consists of an upper wall 57a that covers the top of the motor 52 and a side wall 57b that extends from the left edge of the upper wall 57a toward the guide surface 40 and covers the left side of the motor 52, which are integrated into one unit. The right edge of the upper wall 57a is in contact with the side surface 34 of the fan housing section 33 on the housing side. It can also be said that the side surface 34 covers the right side of the motor 52.

[0052] [Method for storing mobile units] A sliding portion 58 is formed on the edge of the upper wall portion 57a ​​of the motor case 57, on which the base portion 78 of the brush 76 slides when the movable body 60 moves toward the storage position (right side). The sliding portion 58 can guide the brush 76 to swing until the brush 76 that is in contact with the fan 21 is separated from the fan 21.

[0053] The sliding portion 58 extends, for example, in a straight line diagonally with respect to the axis C of the fan 21, but it may also be curved. The sliding portion 58 may be supported by, for example, the case housing portion 33 and may be part of a separate component from the motor case 57.

[0054] [Brush position in storage location] Refer to Figure 8B. When the movable body 60 is in the stowed 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). That is, the brush 76 is completely tilted.

[0055] [Effects of Example 1] The effects of Example 1, described below, are also exhibited in Example 2, described below.

[0056] Refer to Figures 3 and 8A. The storage position of the movable body 60 is set at the end 36a of the air passage 36, with reference to the axis C direction of the fan 21. Therefore, the movable body 60 does not create resistance to the air blown out by the fan 21.

[0057] In addition, the case 30 has a sliding portion 58 on which the base 78 of the brush 76 can slide when the mobile body 60 moves toward the storage position (right side). The sliding portion 58 can guide the brush 76 to swing away from the fan 21 as the mobile body 60 moves. When the mobile body 60 is in the storage position, the brush 76 does not protrude from the end face 22 of the fan 21 (see Figure 3). That is, because the sliding portion 58 can separate the brush from the fan 21, the brush 76 can be separated from the fan 21 without increasing the size of the fan storage portion 33.

[0058] Furthermore, as the moving body 60 moves, the brush 76 swings away from the fan 21, reducing the amount of contact between the brush 76 and the outer edge 24 of the fan 21, thereby reducing the noise of contact between the fan 21 and the brush 76.

[0059] In addition, the sliding portion 58 is formed on the edge of the upper wall portion 57a ​​of the motor case 57. That is, the sliding portion 58 is integrated with the motor case 57, which reduces the number of parts.

[0060] In addition, the base 78 of the brush 76 is slidable relative to the sliding part 58. The bristles 77 of the brush 76 could be set to slide along the sliding part 58, but the swing of the brush 76 is smoother when the base 78 of the brush 76 slides.

[0061] In addition, when the movable body 60 is in the stowed 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 portion 70). Since the brush 76 is completely tilted relative to the movable body 60, it does not create much resistance to the air flowing through the air passage 36.

[0062] In addition, the brush 76 is equipped with a tension spring 79 that applies force to the brush 76 so that it swings toward the fan 21. The brush 76 could also be set to swing toward the fan 21 by its own weight when in the retracted position, but by using the tension spring 79, the brush 76 can be made to swing more reliably.

[0063] Refer to Figure 4. The motor 52 is located at the storage end 36a of the air passage 36. The movable 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.

[0064] Refer to Figure 3. The circuit board housing section 37 is formed on the housing side (right side) relative to 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 housing side of the case 30, making maintenance easier. The wiring between the motor 52 and the control board can also be shortened.

[0065] Refer to Figure 6B. The main body 81 includes a brush 76 and a sheet 84. This main body 81 is detachable from the support portion 70 of the mobile body 60. As a result, the sheet 84 and the brush 76 are detachable from the mobile body 60, respectively. In Embodiment 1 and Embodiment 2 described below, the main body 81 includes a brush 76 and a sheet 84, but the main body 81 may include either the brush 76 or the sheet 84, or both.

[0066] <Example 2> Figures 9A and 9B show the air conditioning system 10A according to Example 2. Components common to the air conditioning system 10 of Example 1 are denoted by the same reference numerals as in Example 1, and their descriptions are omitted.

[0067] In Embodiment 2, instead of the drive force transmission unit 54 (toothed rope 56, drive pulley 55) (see Figure 4) of Embodiment 1, a worm 59 is used, which is housed in the transmission unit housing 41A and can be driven by the gear unit 53 (see Figure 4). The driven unit 61A of the movable body 60A includes a rack gear 65 that meshes with the worm 59.

[0068] When the motor 52 (see Figure 6) is activated, the worm 59 (drive force transmission part), which is provided across the width of the case 30, rotates. Since the driven part 61A has a rack gear 65 that meshes with the worm 59, the rotation of the worm 59 causes the moving body 60A to move in the left-right direction.

[0069] Refer to Figure 9A. The rack gear 65 of the moving body 60 is positioned above the worm 59 and is meshed with the worm 59.

[0070] Refer to Figures 10A and 10B. The transmission unit housing 41 is covered by a cover 42, except for the end on the housing side. That is, an opening 45 is formed at the end of the transmission unit housing 41 on the housing side. The width of this opening 45 is set to be wider than the width of the driven part 61 of the movable body 60.

[0071] With the above configuration, when the movable body 60 in the storage position is slid forward, the engagement between the worm 59 and the rack gear 65 is disengaged, and the movable body 60 in the storage position can be removed from the worm 59 while the transmission unit storage section 41 is covered by the cover 42. In the same way, the movable body 60 can be attached to the worm 59. Therefore, with the transmission unit storage section 41 covered by the cover 42, the movable body 60 in the storage position can be attached to and detached from the worm 59 (drive force transmission section 54).

[0072] Returning to Figure 6B, in the air conditioning unit 10 of Embodiment 1, the movable body 60, which is in a stored position relative to the toothed rope 56 (driving force transmission unit), can also be attached to 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 portion of the screw 91 (not shown) extends in the front-rear direction (the depth direction of the case 30). The driven unit 61 and both ends 56a, 56a of the toothed rope 56 are overlapped in the front-rear direction and fixed by the screw 91. When the screw 91 is removed, the fixing between both ends 56a, 56a of the toothed rope 56 and the movable body 60 is released. After that, when the movable body 60 is moved forward, the movable body 60 can be removed from the toothed rope 56.

[0073] Refer to Figure 5. The downstream end 84a of the sheet 84 is located vertically below the contact point between the bristles 77 of the brush 76 and the outer edge 24 of the fan 21. Therefore, the downstream end 84a of the sheet 84 can reliably wipe away dust adhering to the fan 21.

[0074] Furthermore, the present invention is not limited to the embodiments, provided that it achieves the functions and effects of the present invention. [Industrial applicability]

[0075] The air conditioning system of the present invention is suitable for household air conditioners. [Explanation of symbols]

[0076] 10...Air conditioner 21... Fan 22...End face on the fan housing side 23... The opposite end of the fan 30...cases 31…Air intake 32... Air outlet 33...Fan storage compartment 34... The side of the case that is stored inside 35…The opposite side of the case 36...Air duct, 36a...End of the air duct on the storage side, 36b...End of the air duct on the opposite side 37... Circuit board housing section containing the control board 40... Guide surface 42...cover 45...Aperture 50... Wiping mechanism 52…motor 54…Drive force transmission section 56...Toothed rope (part of the drive force transmission section 54) 59...Worm (driving force transmission part 54) 76...brush 84...sheets C...Fan axis

Claims

1. In cases where an air intake is provided to allow air from the outside, and an air outlet is provided to allow the air taken in to be blown out to the outside, An air conditioning system comprising a wiping mechanism capable of wiping away dust from inside the case, The aforementioned case has a fan housing section that houses a fan that blows air by rotating, The fan housing has a guide surface that surrounds a part of the outer circumference of the fan and guides the air blown by the fan toward the air outlet, and two side surfaces located adjacent to the end faces on both sides of the fan. If the space defined by the guide surface of the fan housing, the two side surfaces, and the fan, and through which the blown air can flow, is defined as the airflow path, The wiping mechanism includes a movable body that can move along the axis of the fan in the air passage. If the position in which the moving body is stored while the wiping mechanism is stopped is defined as the storage position, The aforementioned storage position is set at the end of the airflow path with reference to the axial direction of the fan. The wiping mechanism includes a motor that operates when electricity is supplied, With respect to the axial direction of the fan, if the side on which the movable body is stored is defined as the storage side, then the motor is located at the end of the air passage on the storage side. The case has a circuit board housing section that houses a control board capable of controlling the motor, The aforementioned circuit board housing section is formed on the housing side relative to the aforementioned fan housing section, The wiping mechanism includes a drive force transmission unit connected to the motor and which transmits the driving force of the motor to the moving body. The guide surface has a recessed section that opens toward the fan, and a transmission section housing is formed therein, in which the drive force transmission section is housed. The transmission unit housing is covered by a cover except for the end on the storage side, and an opening is formed at the end on the storage side of the transmission unit housing. An air conditioning device in which, with the transmission unit housing covered by the cover, the movable body in the storage position is detachably attached to the drive force transmission unit through the opening.

2. A case having an air intake that can take in air from the outside and an air outlet that can blow out the taken-in air to the outside, An air conditioning system comprising a wiping mechanism capable of wiping away dust from inside the case, The aforementioned case has a fan housing section that houses a fan that blows air by rotating, The fan housing has a guide surface that surrounds a part of the outer circumference of the fan and guides the air blown by the fan toward the air outlet, and two side surfaces located adjacent to the end faces on both sides of the fan. If the space defined by the guide surface of the fan housing, the two side surfaces, and the fan, and through which the blown air can flow, is defined as the airflow path, The wiping mechanism includes a movable body that can move along the axis of the fan in the air passage. If the position in which the moving body is stored while the wiping mechanism is stopped is defined as the storage position, The aforementioned storage position is set at the end of the airflow path with reference to the axial direction of the fan. The air conditioning device comprises a movable body which includes a sheet capable of contacting the guide surface and wiping away dust adhering to the guide surface, and a brush capable of contacting the fan and wiping away dust adhering to the fan.

Images