JP2009287851A - Air-conditioning indoor unit and panel moving method of air-conditioning indoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly perform moving motion of a moving panel in a case when driving force necessary for motions excluding the moving motion such as rotating motion and rising and elevating motion of the moving panel, is transmitted to the moving panel from an air-conditioning indoor unit body disposed on a ceiling through a gear. <P>SOLUTION: The moving panel 24 is constituted to be movable by the rotating motion in accompany with opening and closing, and the elevating motion in maintenance. A final transmission gear 108c connected to a brush 108 is rotatably mounted on the moving panel 24. On the other hand, an intermediate transmission gear 108d is disposed on a decoration panel, and driving force is transmitted from a brush driving motor. The driving force for rotating the brush 108 is transmitted from the intermediate transmission gear 108d through the final transmission gear 108c. The final transmission gear 108c and the intermediate transmission gear 108d are separated from or brought into contact with each other in moving the moving panel 24. The intermediate transmission gear 108d is rotated in accordance with the motion of the final transmission gear 108c in accompany with the movement of the moving panel 24. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioning indoor unit having a moving panel such as an open / close panel, and more particularly to a ceiling-mounted air conditioning indoor unit in which a filter cleaning function is attached to the moving panel.

In an air conditioning indoor unit such as a ceiling installation, a moving panel provided with a filter cleaning device or the like is known (see, for example, Patent Document 1). In the air-conditioning indoor unit described in Patent Document 1, the movement of the movable panel provided with the filter cleaning device is only due to the lifting operation.
JP 2007-40689 A

  On the other hand, in a new air conditioner indoor unit, there are multiple filter cleaning devices and moving panels together, such as the filter cleaning device and moving panel rotating together (opening and closing operation) in addition to the moving panel lifting and lowering operation. It is planned to provide a function to perform the moving operation.

  Thus, when an air-conditioning indoor unit has a filter cleaning apparatus etc., it is necessary to transmit motive power from a main body with respect to the brush of a filter cleaning apparatus with the movement panel closed. Such a filter cleaning device or the like is a driven device that receives power transmission. Therefore, for example, while the filter is cleaned with the moving panel closed, in order for the moving panel to move, it is required that the power transmission system between the main body and the driven device be separable.

  Therefore, the drive gear installed on the main body and the gear of the driven device attached to the brush or the like are provided as a power transmission system, and the driving gear and the gear of the driven device that are engaged when the movable panel is closed are connected. It can be considered that the movable panel is configured to be released when it is moved.

  However, because the resistance of the driven device makes it difficult for the gear of the driven device to rotate, the engagement and release of both gears are caught during the transition between the meshed state and the released state of the driven gear and the driven device gear. The moving panel does not work smoothly.

  An object of the present invention is an air conditioning indoor unit having a configuration in which a driving force necessary for an operation other than a moving operation such as a pivoting operation and a lifting operation of the moving panel is transmitted from the air conditioning indoor unit body to the moving panel via a gear. It is to make the moving operation of the moving panel smooth.

  An air conditioner indoor unit according to a first aspect of the present invention includes a main body, a panel provided movably with respect to the main body, a driven device fixed to the panel, and a control device. The first driving device has a first gear that is rotatably mounted on the main body, and transmits a driving force by the first gear. The driven device has a second gear that meshes with the first gear, and performs a predetermined operation other than the moving operation of the panel by the driving force transmitted by the first gear. The control device rotates the first gear for the first operation to shift from the meshing state where the first gear and the second gear are engaged to the released state where the first gear and the second gear are not engaged when the panel is moved. One drive is controlled. Alternatively, the control device controls the first driving device to rotate the first gear for the second operation of shifting from the released state to the meshing state when the panel moves. Alternatively, the control device controls both of them.

  According to the present invention, the control device controls the first drive device so as to rotate the first gear by the first drive device for the first operation, the second operation, or both operations. As a result, even when the movement of the second gear is poor due to frictional resistance generated in the driven device, the relationship between the teeth of the first gear and the teeth of the second gear is released / engaged. The angle is changed to an angle at which fastening is easy, and the first gear and the second gear during the first operation and the second operation are hardly caught.

  An air conditioning indoor unit according to a second aspect of the present invention is the air conditioning indoor unit of the first aspect, wherein a second drive device for moving the panel is provided in the main body. The control device controls the first drive device to rotate the first gear in accordance with the movement of the panel by the second drive device.

  According to the present invention, the first drive device is controlled by the control device, and the first gear is rotated in accordance with the movement amount of the panel so that the rotation direction of the first gear and the movement direction of the second gear coincide, for example. Let Accordingly, at least one of release and fastening can be performed while keeping the angle between the first gear and the second gear at an angle that is not easily caught while matching the operation of the panel.

  An air conditioning indoor unit according to a third aspect of the present invention is the air conditioning indoor unit of the second aspect, wherein the control device controls the second driving device to set the speed of the initial operation during the first operation out of the first operation. It should be slower than the speed of the action following the initial action. Alternatively, the control device controls the second drive device so that the speed of the end operation during the second operation is slower than the speed of the operation performed before the end operation of the second operation. Alternatively, the control device controls both of them.

  According to the present invention, since the control device controls the second driving device to slow down the moving operation of the panel, the operation of adjusting the angles of the first gear and the second gear can be performed slowly. Gears can be released and engaged smoothly.

  An air conditioner indoor unit according to a fourth aspect of the present invention is the air conditioner indoor unit of any one of the first to third aspects, wherein the moving operation includes at least one of a rotating operation and an elevating operation. The panel is a moving panel that is moved by at least one of a rotating operation and an elevating operation. The 1st gear is arrange | positioned in the position which moved along the surface direction of the movement panel from the position of the 2nd gear.

  According to the present invention, since the arrangement position of the first gear has moved from the position of the second gear along the surface direction of the movable panel, the first gear and the second gear are substantially parallel to the movable panel. Can be placed side by side.

  An air conditioning indoor unit pertaining to a fifth aspect of the present invention is the air conditioning indoor unit of any one of the first to fourth aspects, wherein the main body has a filter. The driven device is connected to the second gear. The driven device further includes a brush provided to be in contact with the filter. The brush rotates by a driving force transmitted to the second gear in order to remove dust attached to the filter.

  According to the present invention, the driven device performs a rotating operation by the brush for removing dust from the filter, and the brush is rotated by the driving force transmitted to the first gear. Even in such a case, the first gear and the second gear can be smoothly released and fastened by rotating the first gear.

  An air conditioning indoor unit pertaining to a sixth aspect of the invention is the air conditioning indoor unit of the fifth aspect, wherein the driven device further has a box for storing the dust removed by the brush.

  According to the present invention, as an operation other than the moving operation, the brush rotates by the driving force transmitted to the first gear, and dust is stored in the box. Even in such a case, the first gear and the second gear can be smoothly released and fastened by rotating the first gear.

  According to a seventh aspect of the present invention, there is provided a method for moving a panel of an air conditioning indoor unit comprising: And a driving device. The first driving device has a first gear rotatably mounted on the main body, and transmits driving force by the first gear. The driven device has a second gear that meshes with the first gear, and performs a predetermined operation other than the moving operation of the panel by the driving force transmitted from the first gear. The panel moving method of the air conditioning indoor unit includes a first driving device for at least one of the first moving process and the second moving process and at least one of the first and second moving processes. And a step of rotating the first gear. The first movement step is a step of shifting from a meshing state in which the first gear and the second gear are engaged to a released state in which the first gear and the second gear are not engaged in the movement of the panel. On the other hand, the second moving step is a step in which the first gear and the second gear shift from the released state to the meshed state during the movement of the panel.

  According to the present invention, even if the movement of the second gear is bad due to frictional resistance or the like generated in the driven device, the first gear teeth and the second gear are rotated by rotating the first gear by the first driving device. The tooth relationship is changed to an angle at which release and fastening are easy to achieve the released state and the meshed state, and the first gear and the second gear are caught in at least one of the first movement step and the second movement step. Can be difficult.

  In the air conditioning indoor unit pertaining to the first aspect of the invention, the first gear and the second gear are not caught during the first operation or the second operation, and the operation of the panel becomes smooth.

  In the air conditioning indoor unit pertaining to the second aspect of the invention, it is possible to perform at least one of release and fastening while maintaining the angle of the first gear and the second gear at an angle that is not easily caught, and the operation of the panel can be performed smoothly.

  In the air conditioning indoor unit pertaining to the third aspect of the invention, the release and fastening of the first gear and the second gear can be performed slowly and smoothly, and the operation of the panel can be performed smoothly.

  In the air conditioning indoor unit according to the fourth aspect of the invention, the 1 gear is disposed at a position moved from the position of the second gear along the surface direction of the moving panel, so the depth of the air conditioning indoor unit in the direction perpendicular to the moving panel Can be reduced.

  In the air conditioning indoor unit pertaining to the fifth aspect of the invention, even if the moving panel is provided with a brush, the moving panel can be operated smoothly.

  In the air conditioning indoor unit pertaining to the sixth aspect of the invention, even if a box is provided on the moving panel, the moving panel can be operated smoothly.

  In the moving method of the panel of the air conditioner indoor unit according to the seventh aspect of the present invention, the first moving step of shifting from the meshed state of the first gear and the second gear to the released state or the second moving step of shifting from the released state to the meshed state. Therefore, since the first gear is rotated, the first gear and the second gear are not caught in the first movement step or the second movement step, and the operation of the panel becomes smooth.

  Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

<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, the air conditioning indoor unit 2 includes a main body 20 having a suction port 20a and an outlet 20b on the lower surface, a moving panel 24 that opens and closes the suction port 20a, and a first airflow direction adjusting blade 52 that opens and closes the outlet 20b. I have. The inlet 20a and the outlet 20b are adjacent to each other with a certain distance. 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.

  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. .

  In FIG. 2A, when the air conditioning indoor unit 2 is stopped, it is locked by the locking device 8, and the moving panel 24 is apparently integrated with the decorative panel 21. The locking device 8 includes a movable body 81, a first holding unit 82, a second holding unit 83, and the like. Details will be described later.

  In FIG.2 (b), when the air conditioning indoor unit 2 operates, the movement panel 24 opens the suction inlet 20a, and the 1st wind direction adjustment blade | wing 52 opens the blower outlet 20b. One end of the moving panel 24 is supported by the main body 20 by a hinge, and the moving panel 24 rotates to open the suction port 20a. Of the filter cleaning mechanism 10, the brush 108, the dust box 109, and the like are attached to the movable panel 24 as the driven device 200, and rotate together with the rotation of the movable panel 24. Details of the configuration and operation of the filter cleaning mechanism 10 will be described later.

  In FIG.2 (c), the moving panel 24 can be lowered | hung by the raising / lowering apparatus 7 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. The reason why the movable panel 24 is moved up and down is to perform maintenance such as removing dust accumulated in the filter cleaning mechanism 10. However, since the movable 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. Descent 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 the operation of the air conditioning indoor unit 2, the inlet 20a and the outlet 20b are opened, the indoor fan 13 is rotated, and air is sucked from the inlet 20a.

  The indoor heat exchanger 12 has a shape in which the two heat exchangers 12a and 12b are adjacent to each other with different inclination postures.

  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.

(Main body 20)
Since the air conditioning indoor unit 2 includes the filter cleaning mechanism 10 above the moving 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. The air conditioning indoor unit 2 has an expansion frame connected to the main body of the standard air conditioning indoor unit in order to use the main body of the standard air conditioning indoor unit.

  FIG. 4 is an exploded perspective view of the main body of the air conditioning indoor unit. In FIG. 4, the main body 20 is roughly divided into an upper main body 26, a main body extension frame 27, and a lower main body 28. In the lower main body 28, the filter cleaning mechanism 10, the decorative panel 21, the air outlet module 50, and the like shown in FIG.

(Lower body 28)
FIG. 5 is an exploded perspective view of the lower body. In FIG. 5, the hinge connecting 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 moving panel 24 is attached to the lower surface of the decorative panel 21.

  On the upper surface of the movable panel 24, a brush 108 and a dust box constituting a driven device are installed. Cleaning by the driven device 200 of the filter cleaning mechanism 10 is performed when the operation of the air conditioning indoor unit 2 in which the moving panel 24 is integrated with the decorative panel 21 is stopped. At this time, power for rotating the brush 108 is transmitted from a motor attached to the decorative panel 21. The reason why the motor or the like is not provided on the moving panel is to prevent an increase in the weight of the moving panel 24 due to the drive device provided on the moving panel 24. A mechanism for rotating the brush 108 will be described later.

  6 is a plan view of the decorative panel of the air conditioning indoor unit, and FIG. 7 is a perspective view of the decorative panel viewed from the direction A in FIG. 6 and 7, the air outlet module 50 and the filter housing frame 104 of the filter cleaning mechanism 10 are arranged on the upper surface of the decorative panel 21 along the longitudinal direction. 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.

  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. 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. For convenience of explanation, the lifting device 7 on the left side in plan view of FIG. 6 is called a first lifting device 701, and the lifting device 7 on the right side in plan view is called a second lifting device 702.

  The peripheral region of the second lifting device 702 is narrower than the peripheral region of the first lifting device 701, and the second lifting device 702 is inclined with respect to the width direction of the decorative panel 21 in order to suppress the occupied space. The filter drive motor 104f is positioned so as to occupy the central clearance of the second lifting device 702 as shown in FIG.

  On the other hand, the peripheral region of the first lifting device 701 is set wider than the peripheral region of the second lifting device 702. In addition to the filter driving motor 104f, the brush driving motor 108h, the first wind direction adjusting blade driving unit 57, The second wind direction adjusting blade driving unit 58 and the electrical component box 40 (see FIG. 7) are arranged.

<Control device 300>
FIG. 8 is a wiring diagram showing the connection between the control device 300 and each switch and each motor. As shown in FIG. 8, the control device 300 is connected to a switch 77 disposed in the lifting device 7 and a position detection switch 107 disposed in the filter storage frame 104. The control device 300 is connected with a motor 65 of the hinge connecting device 6, a lifting motor 76 of the lifting device 7, a motor 85 of the lock device 8, and a filter driving motor 104f and a brush driving motor 108h of the filter cleaning mechanism 10. Yes. The control device 300 is equipped with a CPU, a memory, and a motor drive circuit, and is disposed in the electrical component box 40 away from the hinge coupling device 6 and the lifting device 7. Each motor or each switch and the control device 300 are electrically connected by a wire harness.

<Filter cleaning mechanism 10>
FIG. 9 is an exploded perspective view of the filter storage frame of the filter cleaning mechanism. In FIG. 9, the filter housing frame 104 is attached with a filter 9, a roller 102, a filter stabilizing plate 103 that prevents the filter 9 from being lifted, and a filter housing frame 104 that forms a moving path of the filter 9.

(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 Remove 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 storage frame 104)
As shown in FIG. 9, 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 at a predetermined interval, whereby the filter storage unit Is formed. 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.

  FIG. 10 is a cross-sectional view of the inside of the filter storage frame. The filter storage frame 104 includes a front storage unit 105 and a rear storage unit 106 as filter storage units. The lengths of the front storage part 105 and the rear storage part 106 correspond to the length of the filter 9 in the longitudinal direction. 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, and the rear storage unit 106 moves the filter 9 that moves from the front storage unit 105. A rear storage path 106a is provided. 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. The rear storage portion 106 is located between the suction port 20a and the blowout port 20b and below the drain pan.

  Next, the positional relationship between the filter drive motor 104f and the brush drive motor 108h with respect to the filter storage frame 104 will be described. In FIG. 10, the filter drive motor 104f and the brush drive motor 108h are indicated by a two-dot chain line so that the positions of the filter drive motor 104f and the brush drive motor 108h with respect to the filter storage frame 104 are clear. The filter drive motor 104f and the brush drive motor 108h are located above both sides of the filter housing frame 104 in the longitudinal direction, that is, above both sides of the suction port 20a in the longitudinal direction.

  In FIG. 10, 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.

  FIG. 11A is a cross-sectional view of the filter storage portion when the filter is in the front storage portion, and FIG. 11B 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. 11A, 11 </ b> B, and 11 </ b> C, the position detection switch 107 is disposed 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.

  During operation, as shown in FIG. 11A, in the air conditioning indoor unit 2, the filter 9 is stored in the front storage path 105 a of the front storage unit 105. The fact that the filter 9 is stored in the front storage path 105 a is detected by the position detection switch 107 near the end of the front storage unit 105.

  When the filter 9 is cleaned, the filter 9 is moved to the rear storage path 106 of the rear storage unit 106 as shown in FIG. When the filter 9 is moving from the front storage unit 105 toward the rear storage unit 106, dust is scraped off by the brush 108. When it moves in the filter storage frame 104 and reaches the vicinity of the end of the rear storage part, it is detected by the position detection switch 107 and the filter 9 stops.

  When the filter 9 is replaced, the filter 9 is pulled out as shown in FIG. The filter 9 is supported from below by the filter retainer 91. In order to take out the filter 9 from the filter housing frame 104 for maintenance, the user pulls the filter 9 by rotating the filter retainer 91 downward.

(Brush 108)
As shown in FIG. 10, the bristles 108 a of the brush 108 are located on the side opposite to 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 (second gear) is connected to the rotation shaft of the bristles 108a, and a pulley 108g is connected to the rotation shaft of the brush drive motor 108h. The brush drive motor 108h, the pulley 108g, the belt 108f, the pulley 108e, and the intermediate transmission gear 108d constitute the brush drive device 400. The intermediate transmission gear 108 c is disposed at a position where the drive gear 108 d is moved horizontally in the width direction along the upper surface of the moving panel 24. The belt 108f is disposed at a position where it does not touch the brush 108 and the final transmission gear 108c. The brush drive motor 108h is a stepping motor. The number of rotations of the brush drive motor 108h is controlled by the number of pulses supplied from the control device 300. Further, the rotation direction of the brush drive motor 108h is also controlled by the output signal of the control device 300. The description of the control by the control device 300 will be described later.

  A driving force is transmitted from the pulley 108g connected to the brush drive motor 108h to the intermediate transmission gear 108d through the belt 108f and the pulley 108e. The intermediate transmission gear 108d (first gear) and the final transmission gear 108c (second gear) mesh with each other, and the driving force of the brush drive motor 108h is transmitted to the brush 108 via the final transmission gear 108c (second gear). The

  Further, since the brush 108 is positioned between the linear front storage path 105a and the curved rear storage path 106a, the filter 9 is moved when the filter 9 moves between the front storage path 105a and the rear storage path 106a. The entire mesh portion 9a can be contacted.

  The meshing between the final transmission gear 108c and the intermediate transmission gear 108d is released when the moving panel 24 is opened and lowered, and the final transmission gear 108c moves together with the moving panel 24 and the brush 108. When the moving panel 24 closes the suction port 20a, the final transmission gear 108c and the intermediate transmission gear 108d are engaged again. The release / fastening of the final transmission gear 108c and the intermediate transmission gear 108d will be described in detail later.

  FIG. 12 is an exploded perspective view of the moving panel. In FIG. 12, the bristles 108a of the brush 108 are fixed to the rotation shaft 108b. Since the bristles 108a are thin plastic bristles, they can enter the mesh of the filter 9 and reliably remove dust. The final transmission gear 108c is connected to both ends of the rotating shaft 108b.

(Dust box 109)
In FIG. 12, 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. Since the hair of the brush 108 enters the comb portion 109c, a large frictional resistance is generated and the brush is difficult to rotate.

  As shown in FIG. 2 (b), the dust box 109 is attached to the rotating shaft side of the moving 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 moving panel 24, the moving panel 24 is structurally reinforced by the dust box 109, so that the usage rate of the sheet metal member conventionally used for reinforcement is reduced.

(Filter cleaning operation)
In the air conditioning indoor unit 2, the filter 9 is automatically cleaned periodically by a remote controller or periodically by the control device 300 when required by the user. The mechanism will be described below.

  As shown in FIG. 11A, during operation, 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. ing. 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. The controller 300 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 stops the rotation of the roller 102. 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 11, 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 device 300 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 control device 300 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 moving panel 24>
FIG. 13 is a perspective view of the decorative panel. As shown in FIG. 13, on the ceiling-side surface of the decorative panel 21, a hinge connecting device 6 and a lock device 8 are arranged 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 moving 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 moving panel 24 when the moving panel 24 is lowered to the maintenance position.

  FIG. 14 is an exploded perspective view of the hinge coupling device. In FIG. 14, 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)
In FIGS. 13 and 14, when the motor 65 rotates the pinion gear 64, power is transmitted to the rack 62 a meshing 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 moving 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 connecting the moving panel 24 is called normal rotation, and the direction in which the connection between the rotating member 61 and the moving panel 24 is released. The rotation of the motor 65 so as to move to is called reverse rotation.

  At the end of the movable panel 24, a support hole 24c (see FIG. 12) that faces the support shaft 61a is provided in the rotating member 61, the motor 65 rotates forward, and the support shaft 61a supports the movable panel 24. When inserted into the hole 24 c, the rotation member 61 and the movable panel 24 are connected, and the movable 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 61a comes out of the support hole 24c of the moving panel 24, the connection between the rotating member 61 and the moving panel 24 is released, and the moving panel 24 moves the first pin 63. Cannot rotate to the center. The moving panel 24 can be moved up and down by feeding and winding the wire 71 in a state where the connection between the rotating member 61 and the moving panel 24 is released.

(Elevating device 7)
FIG. 15 is an exploded perspective view of the lifting device. In FIG. 15, 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 lift motor 76 is controlled by the number of pulses supplied from the control device 300. In addition, the raising / lowering motor 76 and the control apparatus 300 are electrically connected by the wire harness.

  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 switch 77 is also electrically connected to the control device 300 by a wire harness.

  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. 16 is a layout diagram of components inside the lifting device. In FIG. 16, when the elevating device 7 feeds the wire 71, the elevating 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 device 300 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 movable 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 72 a 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 device 300.

  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 movable panel 24 is lowered, the movable panel 24 is moved before reaching the predetermined feed 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, in the control device 300, since the signal from the switch 77 is constant when the lifting motor 76 is rotating, it is estimated that the moving panel 24 has been stopped by some obstacle, and the lifting motor 76 is immediately used. Stop.

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

  FIG. 17 is a perspective view of the locking device. In FIG. 17, 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 part 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 movable 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. 17, 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, it does not prevent the moving panel 24 from being lowered.

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

  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 moving panel 24 from being lowered.

(Moving panel open / close operation)
FIG. 18 is a perspective view of a state in which the moving panel opens the suction port. In FIG. 18, when the locking device 8 releases the lock and the lifting device 7 feeds the wire 71 in a state where the hinge connecting device 6 is connected to the moving panel 24, the moving panel 24 is lowered by its own weight. However, since the end portion of the moving panel 24 is connected to the hinge connecting device 6, the moving 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 elevating device 7 winds the wire 71, the moving panel 24 rises. However, since the end of the moving panel 24 is connected to the hinge connecting device 6, the moving panel 24 has a suction port with the end as an axis. It rotates to the direction which closes 20a. When the moving panel 24 completely closes the suction port 20a, the locking device 8 locks the moving panel 24.

(Moving panel up and down operation)
FIG. 19 is a perspective view of a state where the movable panel is lowered. In FIG. 19, when the hinge connecting device 6 releases the connection with the end of the moving panel 24, the lock device 8 releases the lock of the moving panel 24, and the lifting device 7 feeds the wire 71, the moving panel 24 is Descent due to its own weight. On the other hand, when the lifting device 7 winds the wire 71, the moving panel 24 is raised, and when the moving panel 24 completely closes the suction port 20a, the locking device 8 locks the moving panel 24.

  Since the moving panel 24 is suspended by two wires and descends together with the dust box 109, the total weight of the moving 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 this embodiment, the position of the dust box 109 on the movable 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 1/2 or more of the total length of the movable 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 movable panel 24 in the width direction. The dust box 109 is disposed near the rotation axis when the movable panel 24 rotates.

  When the dust stored in the dust box 109 is discarded, the dust box 109 is removed from the movable panel 24 of the air conditioning indoor unit 2. However, since the dust box 109 is attached to the movable panel 24 that cannot be reached by the user, the user lowers the movable panel 24 to a maintenance position where the user can reach, and then moves the dust box 109 to the movable panel. Remove from 24.

  FIG. 20 is a perspective view of the dust box and the lifting panel after the dust box is taken out. In FIG. 20, the movable panel 24 is formed with a storage portion 24a in which the dust box 109 is stored. When FIG. 20 is viewed from the front, the first pushing portion 110 of the take-out mechanism is arranged at the left end, and the second push-out portion 210 of the take-out mechanism is arranged at the right end. The take-out mechanism includes a first pusher 110 and a second pusher 210. The first extruding part 110 has a button 151, and when the user presses the button 151, the first extruding part 110 pushes the vicinity of one end of the dust box 109 upward of the movable panel 24, and at the same time, the second extruding part 110. The part 210 pushes the vicinity of the other end of the dust box 109 upward of the movable panel 24. When the dust box 109 is mounted on the storage portion 24a, hooks (not shown) are fitted into the recesses 109e provided at both ends of the dust box 109, thereby preventing the dust box 109 from protruding upward.

(Gear release / fastening for opening / closing and moving up / down of moving panel 24)
FIG. 21 is an operation explanatory view for explaining the release / fastening of the gears that can be placed to open / close and move the moving panel 24 upward / downward. 21 is the state of the moving panel 24 and its peripheral members during operation, and what is indicated by the symbol D2 of FIG. 21 is the state of the moving panel 24 and its peripheral members being opened and closed, What is indicated by reference sign D3 in FIG. 21 is the state of the moving panel 24 and its peripheral members being raised and lowered. Note that the positional relationship in FIG. 21 indicates the difference in the position of the moving panel 24 when the decorative panel 21 is moved assuming that it is at the same position. FIG. 21 shows only the final transmission gear 108c (second gear) and the intermediate transmission gear 108d (first gear) that are the targets of the gear releasing / fastening operation during operation, opening / closing, and lifting / lowering. The description of the brush drive motor 108h, the belt 108f, and the pulleys 108e and 108g is omitted.

  As already described in the item of (Brush 108), the final transmission gear 108c (first gear) is connected to the brush 108 and is fixed to the movable panel 24 together with the brush 108 so as to be freely rotatable. In the turning operation of the moving panel 24 supported by the turning member 61, the final transmission gear 108c moves in a circle around the first pin 63 that is the rotation axis of the moving panel 24, and the final transmission gear 108c. The center of the rotation axis of FIG. 8 draws a locus X1 indicated by a one-dot chain line.

  On the other hand, the intermediate transmission gear 108d (second gear) is rotatably fixed to the decorative panel 21. Therefore, the intermediate transmission gear 108c and the decorative gear 108c can be connected to the decorative panel 21 during operation, when the movable panel 24 is opened and closed, and when the movable panel 24 is raised and lowered. The positional relationship with the panel 21 does not change. Therefore, when the moving panel 24 starts to open with respect to the decorative panel 21 during the turning operation of the moving panel 24, the intermediate transmission gear 108d starts to be separated from the final transmission gear 108c (release operation). In addition, when the moving panel 24 starts to close with respect to the decorative panel 21 during the turning operation of the moving panel 24, the intermediate transmission gear 108d approaches the final transmission gear 108c, and comes into contact with it when it is completely closed ( Fastening operation).

  As already described in the section of (Opening and closing operation of the moving panel 24), when the moving panel 24 is connected to the hinge connecting device 6 and the wire 71 is drawn out, the moving panel 24 is rotated and opened. When the wire 71 is wound around, the movable panel 24 is rotated and closed. Control of the feeding / winding direction and speed of the wire 71 and the feeding / winding length is performed by a signal supplied from the control device 300 to the lifting motor 76. Further, the control device 300 controls the brush drive motor 108h at the same time. Therefore, the control device 300 outputs a pulse signal to the brush drive motor 108h in accordance with the pulse signal given to the lifting motor 76.

(Control of gears for opening and closing)
First, a case where the movable panel 24 is opened by a turning operation will be described. However, description of operations of peripheral devices such as the lock device 8 other than those directly related to the releasing operation of the final transmission gear 108c and the intermediate transmission gear 108d is omitted.

  In the first step, the control device 300 outputs a first pulse signal having a frequency f1 and a pulse number P1 to the elevating motor 76, and at the same time, a second pulse having a frequency f2 and a pulse number P2 to the brush drive motor 108h. Outputs a pulse signal. The speed and length of feeding the wire 71 can be controlled by the control device 300 with the frequency f1 and the number of pulses P1 of the first pulse signal. On the other hand, the rotation speed and rotation angle of the intermediate transmission gear 108d can be controlled by the frequency f2 and the number of pulses P1 of the second pulse signal output simultaneously. At the same time, a rotation direction signal for determining the rotation direction as the CW direction is output to the lift motor 76 and the brush drive motor 108h.

  For example, the movement of the rotation shaft of the final transmission gear 108c and the rotation of the intermediate transmission gear 108d will be described on the assumption that the wire 71 is drawn out by a minute length ΔL1. The distance (rotation radius) from the first pin 63, which is the rotation axis of the moving panel 24, to the center of the rotation axis of the final transmission gear 108c is R1. Further, the length of the perpendicular line to the first pin 63 when the perpendicular line is set on the wire 71 is R2.

  The movement distance ΔL2 of the final transmission gear 108c when the wire 71 is drawn out by ΔL1 is approximately given by ΔL1 × R1 / R2. When the distance between the final transmission gear 108c and the intermediate transmission gear 108d is R3, the final transmission gear 108c has rotated around the intermediate transmission gear 108d by an angle given by approximately 360 × ΔL2 / (2π × R3).

  The final transmission gear 108c and the intermediate transmission gear 108d are arranged substantially parallel to the upper surface of the movable panel 24. Therefore, the teeth of the final transmission gear 108c and the intermediate transmission gear 108d overlap each other. When the final transmission gear 108c moves downward along with the opening operation of the moving panel 24, the brush drive motor 108h does not move. The final transmission gear 108c is forcibly rotated by the opening operation of the moving panel. Therefore, as described above, the second pulse signal is output to the intermediate transmission gear 108d so that the intermediate transmission gear 108d rotates in accordance with the speed at which the final transmission gear 108c rotates around the intermediate transmission gear 108d. Thereby, the final transmission gear 108c can be smoothly released from the intermediate transmission gear 108d. The rotation direction of the intermediate transmission gear 108d at this time is the CW direction shown in FIG.

  Next, the second step corresponds to an operation in which the final transmission gear 108c is further rotated after the final transmission gear 108c is slightly separated from the intermediate transmission gear 108d and the gears are not caught with each other. Following the output of the first and second pulse signals, the control device 300 outputs a third pulse signal having the frequency f3 and the number of pulses P3 to the lifting motor 76, but the pulse signal to the brush drive motor 108h. Is not output. At the same time, a rotation direction signal for determining the rotation direction as the CW direction is output to the lift motor 76 and the brush drive motor 108h. Until the final transmission gear 108c is slightly separated, the frequency f1 of the first pulse signal is set to a relatively low frequency so that the moving panel 24 moves slowly in order to release the gear smoothly. Since the moving panel 24 needs to be opened and closed at an appropriate speed after the gear is released, the frequency f3 of the third pulse signal is set to be relatively high. At this time, the intermediate transmission gear 108d is stopped. The distance that the movable panel 24 has moved after the gear is released is given by the number of pulses P3 of the third pulse signal.

  Next, a case where the moving panel 24 is closed by a turning operation will be described. In the first step, the control device 300 outputs a fourth pulse signal having a frequency f4 and a pulse number P4 to the lifting motor 76. At this time, the brush drive motor 108h is stopped by not outputting a pulse signal to the brush drive motor 108h. Next, in the second step, the control device 300 outputs the fifth pulse signal having the frequency f5 and the pulse number P5 to the lifting motor 76, and at the same time, sets the frequency f6 and the pulse number P6 to the brush drive motor 108h. The 6th pulse signal which has is output. At the same time, a rotation direction signal for determining the rotation direction as the CCW direction is output to the lift motor 76 and the brush drive motor 108h. In addition, the frequency f1 of the first pulse signal is set to be higher than that of the third pulse signal f3 so that the fastening operation is performed slowly and the operation of closing the moving panel 24 is completed quickly.

  By the way, it is necessary to wind up the wire 71 by the same length as the length of the wire 71 fed out when the movable panel 24 is opened. Therefore, the number of pulses when closing (P4 + P5) is set equal to the number of pulses when opening (P1 + P3).

  Here, an example of setting a pulse signal will be described. The first pulse signal and the fifth pulse signal, the second pulse signal and the sixth pulse signal, and the third pulse signal and the fourth pulse signal are set to be the same. Because of the frictional resistance generated between the brush 108 and the dust box 109, the intermediate transmission gear 108d is stopped when the moving panel 24 is opened. Therefore, the operation of opening the moving panel 24 is completely reversed in the operation of closing the moving panel 24. As described above, when the fastening operation is performed in the same manner as in the releasing operation, the final transmission gear 108c and the intermediate transmission gear 108d can be smoothly engaged without being caught even in the fastening operation as in the releasing operation. Can do. However, there is an effect obtained by rotating the intermediate transmission gear 108d even if the operation for opening the moving panel 24 and the operation for closing the moving panel 24 are not exactly the same.

(Control of gears during lifting)
Next, a case where the moving panel 24 is opened and closed during the lifting operation will be described. As already described in the section of (Hinge connecting device 6), the moving panel 24 is lifted and lowered when the wire 71 is drawn out while the moving panel 24 is released from the hinge connecting device 6. On the contrary, the moving panel 24 is closed by winding the wire 71 in a state where the hinge connecting device 6 is released. At this time, the center of the rotation axis of the final transmission gear 108c that moves together with the moving panel 24 is linear, and a trajectory X2 indicated by a one-dot chain line is drawn.

  First, the case where the movement panel 24 is opened by the raising / lowering operation will be described. However, description of operations of peripheral devices such as the lock device 8 other than those directly related to the releasing operation of the final transmission gear 108c and the intermediate transmission gear 108d is omitted.

  In the first step, the control device 300 outputs a seventh pulse signal having a frequency f7 and a pulse number P7 to the lifting motor 76, and at the same time, an eighth signal having a frequency f8 and a pulse number P8 to the brush drive motor 108h. Outputs a pulse signal. At the same time, a rotation direction signal for determining the rotation direction as the CW direction is output to the lift motor 76 and the brush drive motor 108h.

  For example, the movement of the rotation shaft of the final transmission gear 108c and the rotation of the intermediate transmission gear 108d will be described on the assumption that the wire 71 is drawn out by a minute length ΔL3. In the case of the raising / lowering operation, the length ΔL3 in which the wire 71 is drawn out is the distance that the final transmission gear 108c has moved. When the distance between the final transmission gear 108c and the intermediate transmission gear 108d is R3, the final transmission gear 108c has rotated around the intermediate transmission gear 108d by an angle given by approximately 360 × ΔL3 / (2π × R3).

  Since the final transmission gear 108c and the intermediate transmission gear 108d are arranged substantially in parallel, if the brush drive motor 108h does not move, the final transmission gear 108c is forcibly rotated by the opening operation of the moving panel. Same as the case. Therefore, as described above, the eighth pulse signal is output to the intermediate transmission gear 108d so that the intermediate transmission gear 108d rotates in accordance with the speed at which the final transmission gear 108c rotates around the intermediate transmission gear 108d. Thereby, the final transmission gear 108c can be smoothly released from the intermediate transmission gear 108d. The rotation direction of the intermediate transmission gear 108d at this time is the CW direction shown in FIG.

  Next, the second step corresponds to an operation in which the final transmission gear 108c is further lowered after the final transmission gear 108c is slightly separated from the intermediate transmission gear 108d and the gears are not caught with each other. Following the seventh and eighth pulse signals, the control device 300 outputs a ninth pulse signal having a frequency f9 and a pulse number P9 to the lifting motor 76, but outputs a pulse signal to the brush drive motor 108h. do not do. At the same time, a rotation direction signal for determining the rotation direction as the CW direction is output to the lift motor 76 and the brush drive motor 108h. Until the final transmission gear 108c is slightly separated, the frequency f7 of the first pulse is set to a relatively low frequency so that the moving panel 24 moves slowly in order to smoothly release the gear. After the gear is released, the moving panel 24 needs to be opened and closed at an appropriate speed, so the frequency f9 of the ninth pulse signal is set to be relatively high. At this time, the intermediate transmission gear 108d is stopped. The distance that the moving panel 24 descends after the gear is released is given by the number of pulses P9 of the ninth pulse signal.

  Next, the case where the moving panel 24 is closed by the raising / lowering operation will be described. In the first step, the control device 300 outputs a tenth pulse signal having a frequency f10 and a pulse number P10 to the lifting motor 76. At this time, the brush drive motor 108h is stopped by not outputting a pulse signal to the brush drive motor 108h.

  Next, in the second step, the control device 300 outputs the eleventh pulse signal having the frequency f11 and the pulse number P11 to the elevating motor 76, and at the same time, sets the frequency f12 and the pulse number P12 to the brush drive motor 108h. The twelfth pulse signal is output. At the same time, a rotation direction signal for determining the rotation direction as the CCW direction is output to the lift motor 76 and the brush drive motor 108h. For the same reason as in the case of the rotating operation, the frequency f9 of the ninth pulse signal is set higher than that of the tenth pulse signal f10. Further, the number of pulses when closing (P10 + P11) is set equal to the number of pulses when opening (P7 + P9).

  Here, an example of setting the seventh pulse signal to the twelfth pulse signal will be described. The seventh pulse signal and the eleventh pulse signal, the eighth pulse signal and the twelfth pulse signal, and the ninth pulse signal and the tenth pulse signal are set to be the same. Thereby, the operation of opening the moving panel 24 is completely reversed in the operation of closing the moving panel 24. As described above, when the fastening operation is performed in the same manner as in the releasing operation, the final transmission gear 108c and the intermediate transmission gear 108d can be smoothly engaged without being caught even in the fastening operation as in the releasing operation. Can do. However, there is an effect obtained by rotating the intermediate transmission gear 108d even if the operation for opening the moving panel 24 and the operation for closing the moving panel 24 are not exactly the same.

  Note that the frequency and the number of pulses of the pulse signal are appropriately set in consideration of the combination of gears and pulleys for transmitting the driving force.

<Features>
The air conditioning indoor unit 2 provided with the main body 20, the movable panel 24, the driven device 200, the control device 300, and the brush driving device 400 has the following characteristics.

(A)
The intermediate transmission gear 108 d of the brush driving device 400 is rotatably attached to the main body 20. A driving force is transmitted by the intermediate transmission gear 108d. On the other hand, the final transmission gear 108c of the driven device 200 meshes with the intermediate transmission gear 108d. Then, the driven device 200 cleans the filter by rotating the brush 108 with the driving force transmitted from the intermediate transmission gear 108d. The control device 300 controls the brush driving device 400 so as to rotate the intermediate transmission gear 108d when the moving panel 24 is opened and closed and when it is raised and lowered. Even if the movement of the final transmission gear 108c is poor due to frictional resistance generated in the driven device 200, the relationship between the teeth of the intermediate transmission gear 108d and the final transmission gear 108c is changed to an angle that can be easily released and fastened, The intermediate transmission gear 108d and the final transmission gear 108c are hardly caught during the releasing operation and the fastening operation. As a result, the opening / closing operation and the raising / lowering operation of the movable panel 24 are performed smoothly.

(B)
A lifting device 7 is provided on the main body 20. The control device 300 controls the brush drive device 400 to rotate the intermediate transmission gear 108d in accordance with the movement in the opening / closing operation and the lifting operation of the moving panel 24 by the lifting device 7. Accordingly, the rotation direction of the intermediate transmission gear 108d is made to coincide with the opening / closing operation and the lifting / lowering direction (trajectory X1, X2) of the final transmission gear 108c, and the intermediate transmission gear 108d is matched to the amount of movement of the movable panel 24 of the movable panel 24. Rotate. As described above, the release operation and the fastening operation can be performed while keeping the angles of the intermediate transmission gear 108d and the final transmission gear 108c at an angle that is not easily caught in accordance with the operation of the moving panel 24. As a result, the opening / closing operation and the raising / lowering operation of the movable panel 24 can be performed smoothly.

(C)
In order for the control device 300 to control the lifting device 7 so that the speed of the initial motion during the release motion is slower than the speed of the motion following the initial motion, the frequency f1 of the first pulse signal is set to the frequency f3 of the third pulse signal. Lower than. Further, the frequency f5 of the fifth pulse signal is set lower than the frequency f4 of the fourth pulse signal so that the speed of the end operation during the fastening operation is slower than the speed of the operation performed before the end operation. Thereby, the operation | movement which adjusts the angle of the intermediate | middle transmission gear 108d and the final transmission gear 108c can also be performed slowly, and both the gears 108c and 108d can be released and fastened smoothly. As a result, the opening / closing operation and the raising / lowering operation of the movable panel 24 can be performed more smoothly.

(D)
The intermediate transmission gear 108d is arranged beside the final transmission gear 108c, that is, at a position where the final transmission gear 108c is moved along the surface direction of the movable panel 24. As a result, the final transmission gear 108c and the intermediate transmission gear 108d are arranged in parallel to the moving panel 24, and are not arranged in the vertical direction of the moving panel 24, so that the depth of the main body 20 in the vertical direction of the moving panel 24 is reduced. Can be small.

<Modification>
In the above embodiment, the intermediate transmission gear 108d is rotated in accordance with the movement of the final transmission gear 108c to smoothly move the moving panel 24. However, the final transmission gear 108c or the intermediate transmission gear 108d is moved by the clutch. It can also be moved smoothly. For example, the final transmission gear 108c is connected to the rotation shaft of the filter drive motor 104f via a clutch. When the gear releasing operation and the fastening operation are performed, the clutch is used to disconnect the final transmission gear 108c from the rotation shaft of the filter drive motor 104f. Since the final transmission gear 108c rotates with a small force by removing the connection, the movement panel 24 can be moved smoothly.

  Further, the gear releasing operation may be performed before the moving panel 24 moves, or the fastening operation may be performed after the moving panel 24 moves. Specifically, before the moving panel 24 is opened by turning or raising / lowering, the straight line connecting the rotation axes is moved to release the intermediate transmission gear 108d of the gear from the final transmission gear 108c. Alternatively, the intermediate transmission gear 108d of the gear is fastened to the final transmission gear 108c by moving the straight line connecting the rotation shafts to the trace where the movement panel 24 is turned and lifted. Thereby, since the moving operation of the moving panel 24 is performed separately from the gear releasing operation and the fastening operation, the moving panel 24 can be moved smoothly.

The external appearance perspective view of the air-conditioning indoor unit which concerns on one 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 the main body of an air-conditioning indoor unit. The disassembled perspective view of a lower main body. The top view of a makeup | decoration panel. The perspective view of the decorative panel seen from the A direction of FIG. The wiring diagram which shows the wiring state of a control apparatus and its peripheral device. 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 disassembled perspective view of a movement 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 of the state in which the movement panel opened the suction inlet. The perspective view in the state where the movement panel is falling. The perspective view of the raising / lowering panel after the dust box and the dust box were taken out. Operation | movement explanatory drawing which shows a movement panel and its peripheral member when a movement panel is closed.

Explanation of symbols

2 Air-conditioning indoor unit 7 Lifting device 9 Filter 20 Main body 20a Suction port 20b Outlet 21 Cosmetic panel 24 Moving panel 7 Lifting device (second drive device)
108 Brush 108c Final transmission gear (second gear)
108d Intermediate transmission gear (first gear)
109 Dust Box 200 Driven Device 300 Control Device 400 Brush Drive Device (First Drive Device)

Claims (7)

A body (20);
A first driving device (400) having a first gear (108d) rotatably mounted on the main body, and transmitting a driving force by the first gear;
A panel (24) provided movably with respect to the main body;
A driven device (200) having a second gear (108c) meshing with the first gear, fixed to the panel, and performing a predetermined operation other than a moving operation of the panel by the driving force;
During the movement of the panel, the first operation for shifting from the meshing state in which the first gear and the second gear are engaged to the releasing state in which the first gear and the second gear are not engaged, and the transition from the released state to the meshing state are performed. A control device (300) for controlling the first drive device to rotate the first gear for at least one of the second operations;
Air conditioner indoor unit equipped with. A second driving device (7) provided on the main body for moving the panel;
The air conditioning indoor unit according to claim 1, wherein the control device controls the first drive device to rotate the first gear in accordance with the movement of the panel by the second drive device.   The control device is configured such that the speed of at least one of the initial operation during the first operation and the end operation during the second operation is an operation following the initial operation of the first operation, and the first operation The air conditioning indoor unit according to claim 2, wherein the second drive device is controlled so as to be slower than a speed of an operation performed before the end operation of the two operations. The moving operation includes at least one of a rotating operation and an elevating operation,
The panel is a moving panel that is moved by at least one of a rotating operation and an elevating operation, and the first gear is moved from the position of the second gear along the surface direction of the moving panel. The air conditioning indoor unit according to any one of claims 1 to 3, wherein the air conditioning indoor unit is arranged. The body has a filter (9);
The driven device further includes a brush (108) connected to the second gear and provided to be able to contact the filter;
The air conditioning indoor unit according to any one of claims 1 to 4, wherein the brush rotates by a driving force transmitted to the second gear in order to remove dust adhering to the filter.   The air-conditioned indoor unit according to claim 5, wherein the driven device further includes a box (109) for storing dust removed by the brush. A first drive device (400) having a main body (20), a first gear (108d) rotatably mounted on the main body, and transmitting a driving force by the first gear; A driven device having a movable panel, a second gear (108c) fixed to the panel and meshing with the first gear, and performing a predetermined operation other than the moving operation of the panel by the driving force. (200) A method for moving a panel of an air conditioning indoor unit comprising:
In the movement of the panel, a first moving step for shifting from the meshing state in which the first gear and the second gear are engaged to a releasing state in which the first gear and the second gear are not engaged, and a transition from the released state to the meshing state. At least one of the second moving steps to be performed;
Rotating the first gear by the first driving device for at least one of the first and second moving steps;
A method for moving a panel of an air conditioning indoor unit.

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