JP4935774B2 - Ceiling-mounted air conditioner - Google Patents

Description

  The present invention relates to a ceiling-mounted air conditioner including a lift panel that can be moved to a position that can be reached by a user during maintenance or the like.

In the field of ceiling-mounted air conditioners, it is known to raise and lower the suction grille (elevating panel) to a position that can be reached by the user by operating the remote control for maintenance such as cleaning of the filter ( For example, see Patent Document 1). In recent years, various air conditioners having an automatic filter cleaning function have been proposed (for example, see Patent Document 2). In an air conditioner that automatically cleans a filter, the filter is usually cleaned by moving either the filter or a filter cleaning mechanism that removes dust from the filter.
Japanese Patent Laid-Open No. 11-2423 JP 2008-57884 A

  However, if the filter is cleaned by the filter cleaning mechanism while moving up and down the lifting panel, the dust that is released with the movement of the filter or the filter cleaning mechanism is scattered, and the dust falls into the room. There is a problem of end.

  Accordingly, the present invention has been made to solve the above-described problems, and a ceiling-mounted air conditioner capable of suppressing dust that has separated from a filter from falling into a room. The purpose is to provide.

A ceiling-mounted air conditioner according to a first invention includes a main body having a suction port, a lifting panel movable from a position covering the suction port, a lifting mechanism for lifting and lowering the lifting panel, and the suction port. A filter that collects dust contained in the inflowing air, and a filter cleaning mechanism that separates dust adhering to the filter from the filter, and the elevating panel covers the suction port when the elevating panel covers the suction port. It is comprised so that a filter cleaning mechanism may be covered, and raising / lowering of the said raising / lowering panel is prohibited while the said filter cleaning mechanism is cleaning the said filter.

  In this ceiling-mounted air conditioner, while the filter cleaning mechanism is cleaning the filter, ascending and descending of the lifting panel is prohibited, so that the filter cleaning mechanism is detached from the filter while cleaning the filter. Dust can be prevented from falling into the room.

  A ceiling-mounted air conditioner according to a second aspect of the present invention is the ceiling-mounted air conditioner according to the first aspect of the present invention, wherein the command for raising and lowering the lifting panel is performed while the filter cleaning mechanism is cleaning the filter. Not accepted.

  In this ceiling-mounted air conditioner, it is possible to reliably prevent the lifting panel from moving up and down while the filter cleaning mechanism is cleaning the filter.

  A ceiling-mounted air conditioner according to a third aspect of the invention is the ceiling-mounted air conditioner according to the first aspect of the invention, which receives a command to raise and lower the lifting panel while the filter cleaning mechanism is cleaning the filter. In such a case, after the cleaning of the filter by the filter cleaning mechanism is stopped, the lifting and lowering of the lifting panel is started.

  In this ceiling-mounted air conditioner, it is possible to immediately stop the cleaning of the filter by the filter cleaning mechanism and start the lifting and lowering of the lifting panel.

  A ceiling-mounted air conditioner according to a fourth aspect of the invention is the ceiling-mounted air conditioner according to the first aspect of the invention, which receives a command to raise and lower the lifting panel while the filter cleaning mechanism is cleaning the filter. In such a case, after the filter cleaning by the filter cleaning mechanism is completed, the lifting and lowering of the lifting panel is started.

  In this ceiling-mounted air conditioner, the lifting and lowering of the lifting panel can be started after the filter cleaning by the filter cleaning mechanism is completed.

  A ceiling-mounted air conditioner according to a fifth aspect of the present invention is the ceiling-mounted air conditioner according to any of the first to fourth aspects of the invention, wherein the filter cleaning mechanism includes a filter driving unit that moves the filter, A brush that scrapes off dust adhering to the filter.

  In this ceiling-mounted air conditioner, the entire filter can be cleaned by moving the filter.

  A ceiling-mounted air conditioner according to a sixth aspect of the present invention is the ceiling-mounted air conditioner according to the fifth aspect of the present invention, wherein the brush is installed on the lifting panel and moves up and down together with the lifting panel.

  In this ceiling-mounted air conditioner, it is possible to prevent the dust attached to the brush from falling into the room by prohibiting the lifting and lowering of the lifting panel where the brush scraped off the dust attached to the filter is installed. can do.

  A ceiling-mounted air conditioner according to a seventh aspect of the present invention is the ceiling-mounted air conditioner according to any of the first to sixth aspects, further comprising a dust box for collecting dust attached to the filter. The dust box is placed on the lifting panel and moves up and down together with the lifting panel.

  In this ceiling-mounted air conditioner, the dust box is lowered together with the lifting panel, so that maintenance is facilitated.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, while the filter cleaning mechanism is cleaning the filter, the lifting and lowering of the lift panel is prohibited, so that the dust that has separated from the filter when the filter cleaning mechanism is cleaning the filter is indoors. It can suppress falling.

  Moreover, in 2nd invention, it can prevent reliably that a raising / lowering panel raises / lowers while a filter cleaning mechanism cleans a filter.

  In the third invention, the cleaning of the filter by the filter cleaning mechanism can be stopped immediately, and the lifting of the lifting panel can be started.

  In the fourth aspect of the invention, the lifting of the lifting panel can be started after the filter cleaning by the filter cleaning mechanism is completed.

  In the fifth invention, the entire filter can be cleaned by moving the filter.

  In addition, in the sixth aspect of the invention, by prohibiting the lifting and lowering of the lifting panel where the brush scraping off the dust adhered to the filter is installed, the dust attached to the brush is prevented from falling into the room. Can do.

  In the seventh invention, since the dust box is lowered together with the lifting panel, maintenance is facilitated.

  Hereinafter, an embodiment of a ceiling-mounted air conditioner (air conditioning indoor unit) according to the present invention will be described based on the drawings.

(First embodiment)
<Configuration of air conditioning indoor unit 2>
FIG. 1 is an external perspective view of an air conditioning indoor unit according to an embodiment of the present invention. In FIG. 1, an air conditioner indoor unit 2 is a ceiling-mounted indoor unit, and opens and closes a main body 20 having a suction port 20a and a blower outlet 20b on the lower surface, a flat panel 24 that opens and closes the suction port 20a, and a blower outlet 20b. The first wind direction adjusting blade 52 is provided. The suction port 20a and the air outlet 20b are adjacent to each other with a certain distance therebetween, so that a phenomenon in which air blown from the air outlet 20b is sucked into the air inlet 20a, that is, a so-called short circuit does not occur. The lower surface of the main body 20 is covered with a decorative panel 21, and it is the decorative panel 21 that is actually exposed to the ceiling surface. The outlines of the suction port 20 a and the air outlet 20 b are formed by the decorative panel 21.

  The flat panel 24 has a substantially flat shape in order to improve the design of the ceiling surface, and has a shape in which air does not easily pass through the suction port 20a when the suction port 20a is closed. The flat panel 24 can be moved up and down from an attachment position attached to the main body 20 to a maintenance position where a user can reach. Further, the flat panel 24 can be rotated with one end as a fulcrum at the mounting position described above. During the air conditioning operation, the flat panel 24 opens the suction port 20a at the mounting position, and when the air conditioning operation is stopped, cover. Here, the above-mentioned “mounting position” is a position where the flat panel 24 is supported by the main body 20, and specifically, a position where the flat panel 24 is connected to a hinge connecting device 6 (see FIG. 10) described later. Say.

  2A is a side view when the operation of the air conditioning indoor unit is stopped, FIG. 2B is a side view when the air conditioning indoor unit is operated, and FIG. 2C is a side view during maintenance. . 2A, 2B, and 2C, the flat panel 24 is apparently integrated with the decorative panel 21 when the air conditioning indoor unit 2 is stopped. In FIG. 2B, while the air conditioning operation is performed, the flat panel 24 opens the suction port 20a, and the first wind direction adjusting blade 52 opens the air outlet 20b. One end of the flat panel 24 is supported by the main body 20 by a hinge, and the flat panel 24 rotates to open the suction port 20a.

  Moreover, in FIG.2 (c), the flat panel 24 can be lowered | hung to the maintenance position which a user's hand reaches in the state hung on the wire 71 extended from the main body 20 side. However, since the flat panel 24 cannot be lowered to the maintenance position when one end is supported by the main body 20 by the hinge, the maintenance is performed after the suction port 20a is once closed and the support by the main body 20 is released. Lower to position.

  FIG. 3 is a cross-sectional view of the air conditioning indoor unit. In FIG. 3, the air conditioning indoor unit 2 further includes a filter 9, a filter cleaning mechanism 10, an indoor heat exchanger 12, an indoor fan 13, a drain pan 14, and an outlet module 50. During operation of the air conditioning indoor unit 2, the suction port 20a and the air outlet 20b are opened, the indoor fan 13 is rotated, air is sucked in through the air inlet 20a, and air sucked from the air inlet 20a is discharged from the air outlet 20b. Blown out.

(Indoor heat exchanger 12)
The indoor heat exchanger 12 has a shape in which two heat exchangers are adjacent to each other in different inclined postures. For convenience of explanation, the upper heat exchanger is the upper heat exchanger 12a and the lower heat exchanger is the lower heat exchanger. This is called the exchanger 12b.

  The upper end of the upper heat exchanger 12a is located on the inner upper side of the main body 20, and the angle inclined from the upper end to the lower end is set to 45 ° or less with respect to the vertical line, so that the dew condensation water is surely exchanged with the upper heat. It goes to the drain pan 14 through the vessel 12a. For this reason, the drain pan 14 does not need to be arrange | positioned in the downward whole area of the top heat exchanger 12a, and is arrange | positioned only under the vicinity of the lower end of the top heat exchanger 12a.

  The upper end of the lower heat exchanger 12b is disposed close to the lower end of the upper heat exchanger 12a, and the angle inclined from the upper end to the lower end exceeds 45 ° with respect to the vertical line. For this reason, since condensed water may fall directly, the drain pan 14 is arrange | positioned in the downward whole area of the lower heat exchanger 12b.

  The upper heat exchanger 12a is set to be longer than the lower heat exchanger 12b, and the lower end corner is close to the upper end center of the lower heat exchanger 12b. For this reason, the amount by which the upper heat exchanger 12a is made longer than the lower heat exchanger 12b is offset.

(Indoor fan 13)
The indoor fan 13 is a cross-flow fan, has a width dimension longer than the diameter, and sucks air from the direction perpendicular to the rotation axis. Therefore, the indoor fan 13 sucks air from the single suction port 20a to the single blower outlet 20b. Can be blown out. The sucked air passes through the filter 9 and the indoor heat exchanger 12 and enters the indoor fan 13. Hereinafter, the air flow path from the suction port 20a to the indoor fan 13 is referred to as a suction flow path 31a.

  The air blown out from the indoor fan 13 passes through the blowout outlet module 50 and is blown out from the blowout opening 20b. The blower outlet 20b is provided with a first wind direction adjusting blade 52, which is a component of the blower outlet module 50, and the first wind direction adjusting blade 52 can be adjusted in inclination angle by a motor. The 1st wind direction adjustment blade | wing 52 closes the blower outlet 20b. Hereinafter, the air flow path from the indoor fan 13 to the blower outlet 20b is referred to as a blowout flow path (second blowout flow path 41a, first blowout flow path 51a). A tongue 15 is provided between the indoor fan 13 and the drain pan 14 and on the second blow-off flow path 41a side, and this tongue 15 prevents leakage of blown air and improves performance. . And since the lower end part of the lower heat exchanger 12b is located under the tongue part 15, it is dead compared with the positional relationship of a tongue part and a heat exchanger like the former (for example, refer Unexamined-Japanese-Patent No. 10-205796). Space can be used effectively. The tongue 15 is a member independent of the indoor fan 13 and the drain pan 14. The suction channel 31a and the second outlet channel 41a described above are formed by the expanded polystyrene 31 and 41.

(Main body 20)
Since the air conditioning indoor unit 2 includes the filter cleaning mechanism 10 above the flat panel 24, the height of the main body 20 is larger than that of a standard air conditioning indoor unit that does not include the filter cleaning mechanism 10.

  FIG. 4 is an exploded perspective view of the lower body. In FIG. 4, the hinge connection device 6, the lifting device 7, the filter housing frame 104 of the filter cleaning mechanism 10, the air outlet module 50, and the air outlet module case 50 a are mounted on the upper surface of the decorative panel 21. A flat panel 24 is attached to the lower surface of the decorative panel 21. The blower outlet module 50 and the filter storage frame 104 of the filter cleaning mechanism 10 are disposed on the upper surface of the decorative panel 21 along the longitudinal direction. Further, the air outlet module 50 and the filter storage frame 104 are adjacent to each other in the width direction of the decorative panel 21. In the vicinity of both ends of the decorative panel 21, the lifting device 7 is arranged so as to sandwich the filter storage frame 104.

<Filter cleaning mechanism 10>
FIG. 5 is an exploded perspective view of the filter storage frame of the filter cleaning mechanism. In FIG. 5, filter drive motors 104 f are attached to both ends of the filter storage frame 104. The filter drive motor 104f rotates the roller 102 via a gear and moves the filter 9. Further, in the filter storage frame 104, a filter 9 having a rack 101 formed at the edge, a roller 102 having a pinion gear 102a, and a filter stabilizing plate 103 for preventing the filter 9 from lifting up are provided.

(Filter 9)
The filter 9 has a mesh portion 9a and an edge portion 9b that holds the periphery of the mesh portion 9a. As shown in FIG. 3, the filter 9 is disposed on the front side of the indoor heat exchanger 12, and from the air taken in from the room Collect dust. Thus, the filter 9 prevents dust floating in the air from contaminating the surface of the indoor heat exchanger 12. A rack 101 that meshes with the pinion gear 102 a is formed on the edge 9 b of the filter 9.

(Roller 102)
The roller 102 has a plurality of pinion gears 102a and a connecting shaft 102b that coaxially connects the plurality of pinion gears 102a. The pinion gear 102a meshes with the rack 101 of the filter 9 and rotates to move the filter 9 horizontally.

(Filter housing inner frame 104)
The filter storage frame 104 has an upper frame 104a and a lower frame 104b, and the upper frame 104a and the lower frame 104b are vertically overlapped with a certain distance to form a filter storage unit. Further, the upper frame 104a is formed with a motor housing portion 104c, which houses a transmission gear 104d that meshes with the pinion gear 102a, a drive gear 104e that drives the transmission gear 104d, and a filter drive motor 104f that rotates the drive gear 104e. Is done.

  Here, the positional relationship of the filter drive motor 104f and the brush drive motor 108f with respect to the filter storage frame 104 and the filter storage portion will be described in detail with reference to the drawings. FIG. 6 is a cross-sectional view of the inside of the filter storage frame. In FIG. 6, the filter drive motor 104f and the brush drive motor 108f are indicated by a two-dot chain line so that the positions of the filter drive motor 104f and the brush drive motor 108f with respect to the filter storage frame 104 are clear. The filter drive motor 104f and the brush drive motor 108f are located above both sides of the filter storage frame 104 in the longitudinal direction, that is, above both sides of the suction port 20a in the longitudinal direction.

  In FIG. 6, a drive gear 104e is connected to the rotation shaft of the filter drive motor 104f, and a transmission gear 104d is engaged with the drive gear 104e. The transmission gear 104d rotates the pinion gear 102a of the roller 102. The filter storage unit includes a front storage unit 105 and a rear storage unit 106, and the lengths of the front storage unit 105 and the rear storage unit 106 correspond to the length in the longitudinal direction of the filter 9.

  7A is a cross-sectional view of the filter storage portion when the filter is in the front storage portion, and FIG. 7B is a cross-sectional view of the filter storage portion when the filter is in the rear storage portion. ) Is a cross-sectional view of the filter housing portion when the filter is taken out. 7A, 7 </ b> B, and 7 </ b> C, the front storage unit 105 has a straight front storage path 105 a that is a path when the filter 9 moves to the rear storage unit 106. 106 has a curved rear storage path 106 a that guides the filter 9 moving from the front storage unit 105.

  As shown in FIG. 3, the end portion of the front storage portion 105 is fitted into a recess 32 that is recessed outward from the wall forming the suction flow path 31a, and when the air conditioning indoor unit 2 is operating, The edge 9b of the filter 9 is not exposed to the suction flow path 31a. Further, the rear storage portion 106 is located between the suction port 20a and the blower outlet 20b and below the drain pan.

  The rear storage path 106a includes a first curved region 106b and a second curved region 106c, and the first curved region 106b curves the filter 9 fed out by the roller 102 in a direction approaching the center of the pinion gear 102a. The second curved region 106c bends the filter 9 in the direction opposite to the first curved region 106b.

  Further, the filter 9 is supported from below by the filter retainer 91. When the user removes the filter 9 from the filter storage frame 104 for maintenance of the filter 9, the filter retainer 91 is rotated downward so that the filter 9 Pull out.

(Position detection switch 107)
In FIG. 7, the filter 9 moves in the filter storage frame 104 and stops at a predetermined position. The stop position of the filter 9 is detected by the position detection switch 107. The position detection switch 107 is arranged near the end of the front storage unit 105 and near the end of the rear storage unit 106. A lever is attached to the outside of the position detection switch 107 by a hinge. When an external force is applied, the lever rotates and pushes the button of the position detection switch 107.

(Brush 108)
As shown in FIG. 6, the bristles 108 a of the brush 108 are located on the opposite side of the roller 102 with the filter 9 in between and are in contact with the filter 9. That is, the roller 102 is above the filter 9 and the brush 108 is below the filter 9. A final transmission gear 108c is connected to the rotation shaft of the bristles 108a, and a drive gear 108e is connected to the rotation shaft of the brush drive motor 108f. The drive gear 108e and the intermediate transmission gear 108d mesh with each other, and the intermediate transmission gear 108d and the final transmission gear 108c mesh with each other.

  Further, since the brush 108 is located between the linear front storage path 105a and the curved rear storage path 106a, the brush 9 is moved when the filter 9 moves between the front storage path 105a and the rear storage path 106a. 108 can contact the entire net 9 a of the filter 9.

  The meshing between the final transmission gear 108c and the intermediate transmission gear 108d is released when the flat panel 24 is opened and lowered, and the final transmission gear 108c moves together with the flat panel 24 and the brush 108. When the flat panel 24 closes the suction port 20a, the final transmission gear 108c and the intermediate transmission gear 108d are engaged again.

  FIG. 8 is an exploded perspective view of the flat panel. In FIG. 8, the bristles 108a of the brush 108 are fixed to the rotating shaft 108b. Since the bristles 108a are thin plastic bristles, they can enter the meshes of the filter 9 and reliably scrape dust. The final transmission gear 108c is connected to both ends of the rotating shaft 108b.

(Dust box 109)
In FIG. 8, the dust box 109 has a dust intake port 109a near the upper air outlet 20b, and supports the rotary shaft 108b via bearings 109b at both ends in the longitudinal direction of the dust intake port 109a. Further, a comb portion 109c for attaching the dust scraped off from the filter 9 by the brush 108 from the brush 108 is attached to the dust intake port 109a. When the dust stored in the dust box 109 is discarded, the dust box 109 is removed from the flat panel 24 of the air conditioning indoor unit 2. However, since the dust box 109 is attached to the flat panel 24 that cannot be reached by the user, the user lowers the flat panel 24 to a maintenance position where the user can reach, and then the dust box 109 is moved to the flat panel. Remove from 24.

  As shown in FIG. 2B, the dust box 109 is attached to the rotating shaft side of the flat panel 24, and the brush 108 approaches the air outlet 20b at the end of the suction port 20a. Rotates to open the suction port 20a, it leaves the filter 9 together with the brush 108, and does not obstruct the path of the suction air. In addition, in order to smoothly direct the air toward the dust box 109 toward the filter 9, the surface 109d facing the suction air of the dust box 109 is inclined to reduce the air resistance.

  When the dust box 109 is fixed to the flat panel 24, since the flat panel 24 is structurally reinforced by the dust box 109, the usage rate of the sheet metal member that has been conventionally used for reinforcement is reduced.

(Filter cleaning operation)
In the air conditioning indoor unit 2, the filter 9 is automatically cleaned by the remote controller 60 (see FIG. 18) automatically or when required by the user. The mechanism will be described below. The filter 9 is cleaned in a state where the flat panel 24 closes the suction port 20a.

  In FIG. 7, the rack 101 of the filter 9 is housed in the front storage path 105a, and one end of the rack 101 (hereinafter referred to as the first end 101a) is engaged with the pinion gear 102a. When the roller 102 rotates, rotation is transmitted from the pinion gear 102 a to the rack 101, and the rack 101 of the filter 9 is conveyed by the roller 102 to the rear storage path 106 a side. As the roller 102 continues to rotate, the first end 101a of the rack 101 reaches the end of the rear storage path 106a.

  When the first end 101a of the rack 101 reaches the end of the rear storage path 106a, the first end 101a rotates the lever of the position detection switch 107 to turn it on. A control unit 70 (see FIG. 18), which will be described later, determines that the first end 101a of the rack 101 has reached the end of the rear storage path 106a from the ON signal output from the position detection switch 107, and rotates the roller 102. Stop. At this time, the entire region of the rack 101 of the filter 9 is accommodated in the rear storage path 106a, and the other end of the rack 101 (hereinafter referred to as the second end portion 101b) is engaged with the pinion gear 102a.

  3 and 7, when the filter 9 moves, dust attached to the surface of the filter 9 is scraped off by the brush 108 and stored in the dust box 109. The brush 108 rotates at least during the period when the filter 9 is moving from the front storage path 105 a to the rear storage path 106 a, and the rotation direction is a direction opposite to the traveling direction of the filter 9.

  When the filter 9 moves from the front storage path 105a to the rear storage path 106a and the dust removal is completed, the control unit 70 rotates the roller 102 in the reverse direction. Since the second end 101b of the rack 101 of the filter 9 meshes with the pinion gear 102a, rotation is transmitted from the pinion gear 102a to the rack 101, and the filter 9 is conveyed to the front storage path 105a side by the roller 102. . As the roller 102 continues to rotate in the reverse direction, the second end 101b of the rack 101 reaches the end of the front storage path 105a.

  When the second end 101b of the rack 101 reaches the end of the front storage path 105a, the second end 101b rotates the lever of the position detection switch 107 to turn it on. The controller 70 determines that the second end 101b of the rack 101 has reached the end of the front storage path 105a from the ON signal output from the position detection switch 107, and stops the rotation of the roller 102. At this time, the rack 101 of the filter 9 is accommodated in the front storage path 105a, and the first end 101a of the rack 101 is engaged with the pinion gear 102a.

<Apparatus related to operation of flat panel 24>
FIG. 9 is a perspective view of the decorative panel. As shown in FIG. 9, the hinge coupling device 6 and the lock device 8 are arranged on the ceiling side surface of the decorative panel 21 in addition to the lifting device 7. Hereinafter, the detailed structures of the hinge connecting device 6, the lifting device 7 and the locking device 8 will be described in order.

(Hinge connection device 6)
The hinge coupling device 6 supports one end of the flat panel 24 so as to be rotatable when the air conditioning indoor unit 2 is operated, and releases the support of one end of the flat panel 24 when the flat panel 24 is lowered to the maintenance position.

  FIG. 10 is an exploded perspective view of the hinge coupling device. In FIG. 10, the hinge coupling device 6 includes a rotating member 61, a sliding member 62, a first pin 63, a pinion gear 64, a motor 65, a fixing member 66, a second pin 67, and a screw 68. The rotating member 61 is a U-shaped solid object, and a rod-shaped support shaft 61a protrudes outward from the end surface. Further, a shaft hole 61 b is formed at one end of the rotating member 61.

  The sliding member 62 includes a rack 62 a that meshes with the pinion gear 64 and an arm 62 b that sandwiches both ends of the shaft hole 61 b of the rotating member 61. Further, the arm 62b is formed with a first sliding hole 62c, and a second sliding hole 62d is formed near the base of the rack 62a. The motor 65 is a stepping motor and rotates the pinion gear 64. The motor 65 has a through hole 65a through which the screw 68 passes.

  The fixing member 66 is formed with a sliding space 66 a that holds the sliding member 62 so as to be slidable, a gear space 66 b into which the pinion gear 64 is inserted, and a screw hole 66 c that is screwed into the screw 68. Furthermore, a first through hole 66d and a second through hole 66e are formed in the wall forming the sliding space 66a.

  The sliding member 62 is disposed in the sliding space 66 a of the fixing member 66, and the shaft hole 61 b of the rotating member 61 is disposed between the arms 62 b of the sliding member 62. The first pin 63 is inserted from one end of the first through hole 66 d of the fixing member 66, passes through the first sliding hole 62 c of the sliding member 62 and the shaft hole 61 b of the rotating member 61, and the other end of the first through hole 66 d. Get out.

  The second pin 67 is inserted from one end of the second through hole 66e, passes through the second sliding hole 62d of the sliding member 62, and exits to the other end of the second through hole 66e. As a result, the sliding member 62 can horizontally move in the sliding space along the first pin 63 and the second pin 67, and the rotating member 61 can rotate around the first pin 63.

(Operation of hinge coupling device 6)
9 and 10, when the motor 65 rotates the pinion gear 64, power is transmitted to the rack 62 a that meshes with the pinion gear 64, and the sliding member 62 slides along the first pin 63. With the movement, the rotating member 61 moves in the direction of the flat panel 24 or in the opposite direction. Here, for convenience of explanation, the rotation of the motor 65 so as to move the rotating member 61 in the direction in which the rotating member 61 is connected to the flat panel 24 is called normal rotation, and the direction in which the connection between the rotating member 61 and the flat panel 24 is released. The rotation of the motor 65 so as to move to is called reverse rotation.

  At the end of the flat panel 24, a support hole 24 c (see FIG. 8) that faces the support shaft 61 a is provided in the rotating member 61, the motor 65 rotates forward, and the support shaft 61 a supports the flat panel 24. When inserted into the hole 24 c, the rotation member 61 and the flat panel 24 are connected, and the flat panel 24 can rotate around the first pin 63.

  On the other hand, when the motor 65 rotates in the reverse direction and the support shaft 61 a comes out of the support hole 24 c of the flat panel 24, the connection between the rotating member 61 and the flat panel 24 is released, and the flat panel 24 connects the first pin 63. Cannot rotate to the center.

(Elevating device 7)
FIG. 11 is an exploded perspective view of the lifting device. In FIG. 11, the lifting device 7 includes a wire 71, a pulley 72, a bobbin 73, a winding gear 74, a driving gear 75, a lifting motor 76, a switch 77, and a case 78.

  The pulley 72 has a pulley portion 72 a and a cam portion 72 b that are integrally formed. The pulley portion 72 a supports the wire 71 and rotates as the wire 71 moves. The cam portion 72b includes a small-diameter curved surface, a large-diameter curved surface, and a plane connecting both the curved surfaces.

  The bobbin 73 winds up the wire 71. The winding gear 74 is connected coaxially with the bobbin 73 and rotates integrally. The drive gear 75 meshes with the winding gear 74 and rotates the bobbin 73.

  The elevating motor 76 is a stepping motor and rotates the drive gear 75. The number of rotations of the lifting motor 76 is controlled by the number of pulses supplied from the control unit 70.

  The switch 77 is a micro switch having a lever 77a and is turned on when the lever 77a is pressed. The lever 77a is always in contact with the cam portion 72b of the pulley 72 and is pushed when facing the large-diameter curved surface of the cam portion 72b.

  The case 78 is divided into a support case 78a and a cover 78b. The support case 78a is formed with a first shaft 79a that supports the pulley 72, a second shaft 79b that supports the bobbin 73 and the winding gear 74, and a third shaft 79c that supports the switch 77. The cover 78b covers and protects each component supported by the support case 78a.

(Operation of lifting device 7)
FIG. 12 is a layout diagram of components inside the lifting device. In FIG. 12, when the lifting device 7 feeds the wire 71, the lifting motor 76 rotates the drive gear 75 in the CCW direction and rotates the winding gear 74 in the CW direction. As a result, the bobbin 73 rotates in the direction of feeding the wire 71.

  On the other hand, when the lifting device 7 winds the wire 71, the lifting motor 76 rotates the drive gear 75 in the CW direction and rotates the winding gear 74 in the CCW direction. As a result, the bobbin 73 rotates in the direction of winding the wire 71. The string feeding amount and the winding amount are proportional to the rotation amount of the lifting motor 76, and the control unit 70 controls the number of pulses supplied to the lifting motor 76, whereby the feeding amount and winding amount of the wire 71 are controlled. Is controlled.

  Since the flat panel 24 is connected to the tip of the wire 71, tension is always generated in the wire 71, and when the wire 71 is drawn out or wound up, the pulley portion 72a is connected to the wire 71. It is rotated by the frictional force. At this time, since the cam portion 72b also rotates, the switch 77 issues an ON signal when the lever 77a faces the large-diameter curved surface of the cam portion 72b, and issues an OFF signal when the lever 77a faces the small-diameter curved surface. While the pulley 72 is rotating, an ON signal and an OFF signal are alternately generated, and these signals are all input to the control unit 70.

  However, if the wire 71 loses its slack tension for some reason, for example, when the wire 71 is fed out for maintenance and the flat panel 24 is lowered, the flat panel 24 is moved before reaching the predetermined feeding amount. When landing on a table or the like and stopping, the frictional force between the wire 71 and the pulley portion 72a decreases, and the pulley 72 stops. For this reason, either the on signal or the off signal is continuously output from the switch 77. At this time, since the signal from the switch 77 is constant when the lifting motor 76 is rotating, the control unit 70 estimates that the flat panel 24 has stopped due to some obstacle, and immediately the lifting motor 76. Stop.

(Locking device 8)
When the flat panel 24 closes the suction port 20a, the hinge connecting device 6 and the lifting device 7 support the flat panel 24 on the main body 20. The air conditioning indoor unit 2 is a locking device so that the flat panel 24 does not fall even when the hinge coupling device 6 malfunctions due to unforeseen reasons and the support of the flat panel 24 is released and the wire 71 of the lifting device 7 is loosened. 8 is further provided.

  FIG. 13 is a perspective view of the locking device. In FIG. 13, the locking device 8 includes a movable body 81, a first holding part 82, a second holding part 83, a motor 84 and a spring 85. The movable body 81 has a quadrangular prism shape, an inclined surface 811 is formed at one end thereof, a long side surface 812 having the longest overall length is formed with a rack 81a that meshes with a predetermined gear, and below the rack 81a. A hollow portion 81b is formed. The movable body 81 is held in a movable state by the first holding portion 82 with the long side surface 812 directed vertically upward.

  The first holding portion 82 is a rectangular parallelepiped housing having an open top surface and one side surface, a guide groove 82a is formed on the bottom surface, and the movable body 81 moves horizontally along the guide groove 82a. Both ends of the guide groove 82a are sandwiched between walls 821 and 822, and a through-hole 82b through which the movable body 81 passes is formed in one wall 821. A wall 823 is adjacent to the walls 821 and 822 sandwiching both ends of the guide groove 82a, and a plate-like protrusion 82c that protrudes in a direction orthogonal to the guide groove 82a is formed on the wall 823. When the movable body 81 is held by the first holding portion 82, the inclined surface 811 is always located outside the first holding portion 82, and the rack 81 a is always located inside the first holding portion 82. The plate-like protrusion 82 c of the first holding part 82 passes through the hollow part 81 b of the movable body 81.

  The wall 823 fixes the motor 84 and rotatably supports a pinion gear 84 a connected to the rotation shaft of the motor 84. The pinion gear 84a meshes with the rack 81a of the movable body 81 to form a rack and pinion mechanism. A spring 85 is accommodated in the hollow portion 81 b of the movable body 81. The spring 85 is a compression coil spring and is sandwiched between the end of the hollow portion 81b and the plate-like protrusion 82c.

  The second holding portion 83 is a solid object in which a guide hole 83a through which the movable body 81 passes is formed, and is installed on the flat panel 24 side. A smooth curved surface 831 is formed on the upper surface of the second holding portion 83.

(Operation of the locking device 8)
In FIG. 13, the movable body 81 is in a state of being held by the first holding body 82 and the second holding body 83, and when the motor 84 rotates the pinion gear 84a in the CCW direction in this state, the pinion gear 84a The rotational motion is converted into a linear motion by the rack 81a, and the movable body 81 slides toward the wall 822. When the movable body 81 moves a predetermined distance, the movable body 81 moves away from the guide hole 83a of the second holding portion 83. Since the second holding body 83 that does not hold the movable body 81 is allowed to move in the vertical direction, the lowering of the flat panel 24 is not hindered.

  The movement of the movable body 81 shortens the distance between the side surface of the hollow portion 81b and the plate-like protrusion 82c, so that the spring 85 is compressed and stores a repulsive force. The motor 84 rotates against the increasing repulsive force of the spring 85 while the electric power is supplied. However, when the electric power is not supplied, the motor 84 rotates reversely due to the repulsive force of the spring 85, and the movable body 81 returns to the original state. Return to the position.

When the flat panel 24 is not lowered and the second holding portion 83 is not moving, the movable body 81 enters the guide hole 83 a of the second holding portion 83. On the other hand, when the flat panel 24 is lowered and the second holding part 83 is moving, the second panel 83 waits on the path where the second holding part 83 returns. Then, when the flat panel 24 rises and closes the suction port 20a, the second holding part 83 applies the curved surface 831 to the inclined surface 811 of the movable body 81 and pushes the movable body 81 back.

  The movable body 81 pushed by the second holding portion 83 moves horizontally and compresses the spring 85. When the second holding portion 83 is completely restored, the movable body 81 passes through the guide hole 83a of the second holding portion 83. As a result, the movable body 81 prevents the flat panel 24 from descending.

(Flat panel open / close operation)
FIG. 14 is a perspective view of a state in which the flat panel opens the suction port. In FIG. 14, when the locking device 8 releases the lock while the hinge connecting device 6 connects the flat panel 24, and the lifting device 7 feeds the wire 71, the flat panel 24 is lowered by its own weight. However, since the end portion of the flat panel 24 is connected to the hinge connecting device 6, the flat panel 24 rotates in the direction of opening the suction port 20a with the end portion as an axis.

  On the other hand, when the lifting device 7 winds up the wire 71, the flat panel 24 rises, but since the end of the flat panel 24 is connected to the hinge connecting device 6, the flat panel 24 has a suction port with the end as an axis. It rotates to the direction which closes 20a. When the flat panel 24 completely closes the suction port 20a, the locking device 8 locks the flat panel 24.

(Flat panel lift)
FIG. 15 is a perspective view of the flat panel in a lowered state. In FIG. 15, when the hinge connecting device 6 releases the connection with the end of the flat panel 24, the locking device 8 releases the lock of the flat panel 24, and the lifting device 7 feeds the wire 71, the flat panel 24 is It descends by its own weight. On the other hand, when the lifting device 7 winds up the wire 71, the flat panel 24 is raised, and when the flat panel 24 completely closes the suction port 20a, the locking device 8 locks the flat panel 24.

  Since the flat panel 24 is suspended by two wires and descends together with the dust box 109, the total weight of the flat panel 24 including the dust box 109 is increased, and the posture is not unstable due to the airflow in the room. . However, the center of gravity fluctuates when dust is concentrated in the dust box 109. For this reason, in the present embodiment, the position of the dust box 109 on the flat panel 24 is set so that the posture when the dust box 109 is full of dust and the posture when the dust box 109 is empty are substantially the same posture. Dimensions and position are set.

  Specifically, the total length of the dust box 109 in the longitudinal direction is set to be ½ or more of the total length of the flat panel 24 in the longitudinal direction. Further, the total length of the dust box 109 in the width direction is set to 1/3 or more of the total length of the flat panel 24 in the width direction. The dust box 109 is disposed near the rotation axis when the flat panel 24 rotates.

<Components of the outlet module 50>
FIG. 16 is an enlarged cross-sectional view of the air outlet module, and FIG. 17 is a perspective view of the air outlet module. 16 and 17, the outlet module 50 includes a first outlet channel forming wall 51, a first air direction adjusting blade 52, a second air direction adjusting blade 53, a long blade supporting member 54, a strip-shaped blade supporting member 55, and The heat insulating material 56 is modularized.

(First blowing channel forming wall 51)
The 1st blowing flow path formation wall part 51 is located in the terminal part of an air flow path, and forms the 1st blowing flow path 51a connected with the blower outlet 20b. The first blowing flow path forming wall portion 51 has a resinous sealing member attaching surface 511 at a portion facing the end of the second blowing flow path forming wall portion 41 (see FIG. 3) forming the second blowing flow path 41a. The sealing member 59 is affixed there. The width dimension of the sealing member attaching surface 511 is set to 3 mm or more.

  The first blowing flow path forming wall portion 51 further includes an outer wall 512 and an inner wall 513 extending in the direction from the sealing member attaching surface 511 toward the outlet 20b, and a flange 514 extending in the horizontal direction from the end of the outer wall 512. The outer wall 512 and the inner wall 513 are separated from each other by a predetermined distance, and a heat insulating air layer 51 b is formed between the outer wall 512 and the inner wall 513. The flange 514 is located on the opposite side of the air inlet 20a with the air outlet 20b interposed therebetween, and also serves as a reinforcing plate for the decorative panel 21.

(First wind direction adjusting blade 52)
The 1st wind direction adjustment blade | wing 52 is located in the vicinity of the blower outlet 20b, and has two long blades 52a and 52b extended in parallel with the longitudinal direction of the blower outlet 20b. The long blades 52a and 52b are connected to the first outlet flow path forming wall portion 51 by the long blade support member 54, and the support portions 54a and 54b of the long blade support member 54 are parallel to the longitudinal direction of the outlet 20b. To adjust the tilt angle of the long blades 52a and 52b. However, the air outlet 20b is closed when the air conditioning indoor unit 2 is stopped.

(Second wind direction adjusting blade 53)
The second wind direction adjusting blade 53 is located upstream of the first wind direction adjusting blade 52, and has a plurality of strip-shaped blades 53a and one drive shaft 53b. Each strip-shaped blade 53a is connected to the first blow-off channel forming wall 51 by a strip-shaped blade support member 55, and is arranged in parallel to the longitudinal direction of the outlet 20b at a predetermined interval. Further, the plurality of strip-shaped blades 53a are connected by a drive shaft 53b, and reciprocate around the axis perpendicular to the longitudinal direction of the outlet 20b as the drive shaft 53b reciprocates in the longitudinal direction.

(1st wind direction adjustment blade drive part 57)
The first wind direction adjusting blade driving unit 57 is located on the extended line of the first wind direction adjusting blade 52 outside the first blowing flow path forming wall portion 51. The first wind direction adjusting blade drive unit 57 includes a stepping motor (not shown) and a transmission gear (not shown) that transmits the rotation of the stepping motor to the long blade support member 54.

(Second wind direction adjusting blade driving unit 58)
The second wind direction adjusting blade drive unit 58 is positioned on the extended line of the drive shaft 53 b of the second wind direction adjusting blade 53 outside the first blowing flow path forming wall portion 51. The second wind direction adjusting blade drive unit 58 includes a stepping motor (not shown) and a transmission gear (not shown) that transmits the rotation of the stepping motor to the drive shaft 53b.

<Configuration of control unit>
FIG. 18 is a control block diagram of the air conditioning indoor unit. As shown in FIG. 18, the air conditioning indoor unit 2 is provided with a control unit 70 on which a CPU, a memory, a motor drive circuit, and the like are mounted. The control unit 70 includes the indoor fan 13, the filter drive motor 104f, the brush drive motor 108f, the motor 65 of the hinge coupling device 6, the lift motor 76 of the lift device 7, the motor 84 of the lock device 8, and two position detection switches. 107, configured to be able to communicate with the switch 77 of the elevating device 7 and the remote controller 60 by wire or wireless. The remote controller 60 inputs an air conditioning command (cooling command, heating command, dehumidification command, air blowing command, etc.) of the air conditioning indoor unit 2, an elevation command of the flat panel 24, a cleaning command of the filter 9, and the like by a user operation. Various commands input to the remote controller 60 are sent to the control unit 70 via the receiving unit of the air conditioning indoor unit 2. And the control part 70 which received the said instruction | command controls operation | movement of the air-conditioning indoor unit 2 by outputting a control signal with respect to each structure based on the said instruction | command.

  In this embodiment, while the filter cleaning mechanism 10 is cleaning the filter 9, the control unit 70 does not accept the command even if a lowering command for lowering the flat panel 24 is made by operating the remote controller 60. In addition, the cleaning of the filter 9 by the filter cleaning mechanism 10 is continued.

<Flat panel lift control>
FIG. 19 is a flowchart showing the lift control of the flat panel according to the first embodiment. Next, with reference to FIG. 19, the raising / lowering control of a flat panel is demonstrated in detail.

  First, the control unit 70 determines whether or not a command to lower the flat panel 24 has been issued by operating the remote controller 60 (step S1). When the lowering command is issued (step S1: Yes), the control unit 70 determines whether the cleaning of the filter 9 is stopped (step S2). Specifically, the control unit 70 determines whether or not the filter drive motor 104f and the brush drive motor 108f are stopped. On the other hand, if the lowering command is not issued (step S1: No), the determination in step S1 is repeated until the lowering command is issued.

  In this embodiment, when the cleaning of the filter 9 is stopped (step S2: Yes), the control unit 70 controls the elevating motor 76 to start the flat panel 24 descending (step S3).

  On the other hand, when the filter 9 is being cleaned (step S2: No), the control unit 70 ignores the above-described lowering command while continuing to clean the filter 9, and repeats the determination of step S1 again.

[Features of air-conditioning indoor unit (air conditioner) of this embodiment]
The air conditioning indoor unit 2 of the present embodiment has the following characteristics.

  In the air conditioning indoor unit 2 of the present embodiment, while the filter cleaning mechanism 10 is cleaning the filter 9, raising and lowering of the flat panel 24 is prohibited, so that the filter cleaning mechanism 10 is cleaning the filter 9. It is possible to suppress the dust separated from the filter 9 from falling into the room.

  Further, in the air conditioning indoor unit 2 of the present embodiment, the flat panel 24 closes the suction port 20a while the filter cleaning mechanism 10 is cleaning the filter 9, so that the gear of the filter cleaning mechanism 10 is connected to the suction port. It can cover so that it may not be exposed through 20a. As a result, safety can be ensured.

  Further, in the air conditioning indoor unit 2 of the present embodiment, while the filter cleaning mechanism 10 is cleaning the filter 9, a command to raise and lower the flat panel 24 is not accepted, so the filter cleaning mechanism 10 cleans the filter. It is possible to reliably prevent the flat panel 24 from moving up and down.

  Moreover, the air conditioning indoor unit 2 of this embodiment can clean the filter 9 whole when the filter cleaning mechanism 10 moves the filter 9.

  In the air conditioning indoor unit 2 of the present embodiment, the dust attached to the brush 108 falls into the room by stopping the flat panel 24 on which the brush 108 scraped off the dust attached to the filter 9 is installed. Can be suppressed.

  Further, in the air conditioning indoor unit 2 of the present embodiment, the dust box 109 is lowered together with the flat panel 24, so that maintenance is facilitated.

(Second Embodiment)
FIG. 20 is a flowchart showing the raising / lowering control of the flat panel according to the second embodiment. In the second embodiment, unlike the first embodiment in which a command for lowering the flat panel 24 is not received, when the command for lowering the flat panel 24 is received while the filter cleaning mechanism 10 is cleaning the filter 9. Will explain the flat panel lifting control for starting the descent of the flat panel 24 after the cleaning of the filter 9 by the filter cleaning mechanism 10 is stopped.

  First, the control unit 70 determines whether or not a command to lower the flat panel 24 has been issued by operating the remote controller 60 (step S11). When a lowering command is issued (step S11: Yes), the control unit 70 determines whether or not the cleaning of the filter 9 is stopped (step S12). Specifically, the control unit 70 determines whether or not the filter drive motor 104f and the brush drive motor 108f are stopped. On the other hand, when the lowering command is not issued (step S11: No), the determination in step S11 is repeated until the lowering command is issued.

  In the present embodiment, when the cleaning of the filter 9 is stopped (step S12: Yes), the control unit 70 controls the elevating motor 76 to start lowering the flat panel 24 (step S13).

  In contrast, when the filter 9 is being cleaned (step S12: No), the control unit 70 controls the lifting motor 76 after stopping the cleaning of the filter 9 by the filter cleaning mechanism 10 (step S14). The flat panel 24 starts to descend (step S15).

[Features of air-conditioning indoor unit (air conditioner) of this embodiment]
The air conditioning indoor unit 2 of the present embodiment has the following characteristics.

  In the air conditioning indoor unit 2 of the present embodiment, the cleaning of the filter 9 by the filter cleaning mechanism 10 can be immediately stopped and the flat panel 24 can be lowered.

(Third embodiment)
FIG. 21 is a flowchart showing the lift control of the flat panel according to the third embodiment. In the third embodiment, unlike the first embodiment in which a command to lower the flat panel is not accepted and the second embodiment in which the cleaning of the filter is stopped, the flat panel while the filter cleaning mechanism 10 is cleaning the filter 9 is used. When a command to lower 24 is received, the flat panel lifting control for starting the lowering of the flat panel 24 after the cleaning of the filter 9 by the filter cleaning mechanism 10 is completed will be described.

  First, the control unit 70 determines whether or not a command to lower the flat panel 24 has been issued by operating the remote controller 60 (step S21). When the lowering command is issued (step S21: Yes), the control unit 70 determines whether or not the cleaning of the filter 9 is stopped (step S22). Specifically, the control unit 70 determines whether or not the filter drive motor 104f and the brush drive motor 108f are stopped. On the other hand, when the lowering command is not issued (step S21: No), the determination in step S11 is repeated until the lowering command is issued.

  In this embodiment, when the cleaning of the filter 9 is stopped (step S22: Yes), the control unit 70 controls the elevating motor 76 to start lowering the flat panel 24 (step S23).

  On the other hand, when the filter 9 is being cleaned (step S22: No), the control unit 70 continues to clean the filter 9 (step S24) and determines whether the filter 9 has been cleaned. (Step S25). And when cleaning of the filter 9 is completed (step S25: Yes), the raising / lowering motor 76 is controlled and the descent | fall of the flat panel 24 is started (step S26). On the other hand, when the cleaning of the filter 9 is not completed (step S25: No), the cleaning of the filter 9 is continued (step S24).

[Features of air-conditioning indoor unit (air conditioner) of this embodiment]
The air conditioning indoor unit 2 of the present embodiment has the following characteristics.

  In the air conditioning indoor unit 2 of the present embodiment, the flat panel 24 can be started to rise and lower after the filter cleaning mechanism 10 completes the cleaning of the filter 9.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above embodiment, the flat panel 24 has been described as an example of the lifting panel. However, the air conditioner of the present invention is not limited to this, and the lifting panel is a grid-like grid panel 124 as shown in FIG. May be. In this case, since air can be sucked in through the lattice portion, the configuration is simpler than the flat panel 24 that requires a mechanism (such as the hinge coupling device 6) for opening and closing the suction port 20a.

By using the present invention, it is possible to obtain a ceiling-mounted air conditioner capable of suppressing dust that has separated from a filter from falling into the room when the filter cleaning mechanism is cleaning the filter. Can do.

The external appearance perspective view of the air-conditioning indoor unit which concerns on 1st Embodiment of this invention. (A) The side view at the time of operation stop of an air-conditioning indoor unit. (B) The side view at the time of the driving | running of an air-conditioning indoor unit. (C) Side view at the time of maintenance. Sectional drawing of an air-conditioning indoor unit. The disassembled perspective view of a lower main body. The disassembled perspective view of the filter storage frame of a filter cleaning mechanism. Sectional drawing inside a filter storage frame. (A) Sectional drawing of a filter storage part when a filter exists in a front storage part. (B) Sectional drawing of a filter storage part when a filter exists in a back storage part. (C) Sectional drawing of a filter storage part when taking out a filter. The exploded perspective view of a flat panel. The perspective view of a makeup | decoration panel. The disassembled perspective view of a hinge coupling device. The exploded perspective view of a raising / lowering apparatus. The layout of the components inside the lifting device. The perspective view of a locking device. The perspective view in the state where the flat panel opened the inlet. The perspective view in the state where the flat panel is descending. The expanded sectional view of a blower outlet module. The perspective view of a blower outlet module. The control block diagram of an air-conditioning indoor unit. The flowchart which showed the raising / lowering control of the flat panel which concerns on 1st Embodiment. The flowchart which showed the raising / lowering control of the flat panel which concerns on 2nd Embodiment. The flowchart which showed the raising / lowering control of the flat panel which concerns on 3rd Embodiment. The external appearance perspective view of the air-conditioning indoor unit which concerns on the modification of 1st Embodiment of this invention.

2 Air conditioning indoor unit (air conditioner)
7 Lifting mechanism 9 Filter 10 Filter cleaning mechanism 13 Indoor fan (blower)
20 Main body 20a Suction port 24 Flat panel (lifting panel)
104f Filter drive motor (filter drive unit)
108 Brush 109 Dust box

Claims (7)

A main body having a suction port;
A lifting panel movable from a position covering the suction port;
An elevating mechanism for elevating the elevating panel;
A filter that collects dust contained in the air flowing from the suction port;
A filter cleaning mechanism for removing dust adhering to the filter from the filter;
The lifting panel is configured to cover the filter and the filter cleaning mechanism when covering the suction port,
While the filter cleaning mechanism cleans the filter, the ceiling-mounted air conditioner is prohibited to raise and lower the lift panel.   2. The ceiling-mounted air conditioner according to claim 1, wherein a command for raising and lowering the elevating panel is not accepted while the filter cleaning mechanism is cleaning the filter.   If the filter cleaning mechanism receives a command to raise or lower the elevating panel while cleaning the filter, the elevating panel starts to elevate after the filter cleaning mechanism stops cleaning the filter. The ceiling-mounted air conditioner according to claim 1, wherein the air conditioner is a ceiling-mounted air conditioner.   If the filter cleaning mechanism receives a command to raise or lower the lifting panel while cleaning the filter, the lifting of the lifting panel is started after the filter cleaning by the filter cleaning mechanism is completed. The ceiling-mounted air conditioner according to claim 1, wherein the air conditioner is a ceiling-mounted air conditioner. The filter cleaning mechanism is
A filter driving unit for moving the filter;
The ceiling-mounted air conditioner according to claim 1, further comprising a brush that scrapes off dust adhering to the filter.   The ceiling-mounted air conditioner according to claim 5, wherein the brush is installed on the elevating panel and moves up and down together with the elevating panel. A dust box for collecting dust attached to the filter;
The ceiling-mounted air conditioner according to any one of claims 1 to 6, wherein the dust box is placed on the lift panel and moves up and down together with the lift panel.

Images