ES2467967T3 - Indoor air conditioning unit - Google Patents

Abstract

A ceiling mounted indoor air conditioning unit (2) comprising: a body (20) having a suction opening (20a) in its lower surface; a vertical alternative movement panel (24) that is arranged to descend to a predetermined position at the time of maintenance; a lifting and lowering mechanism (7) that is arranged to cause the vertical alternative movement panel (24) to move in an upward direction and in a downward direction; a filter (9) that is arranged to remove the dust included in the air flowing in from the suction opening (20a); a cleaning element (108) that is arranged to cause the dust adhering to the filter (9) to separate from the filter (9); a cleaning element drive part (108d, 108e, 108f) that is arranged to make the cleaning element (108) work; and a dust box (109) that is attached to the vertical reciprocating motion panel (24) and is arranged to collect dust separated from the filter (9), characterized in that: the vertical reciprocating motion panel (24) is arranged to close the suction opening (20a) at the time of stopping operation; the dust box (109) is detachably attached to the vertical alternative movement panel (24); and the ceiling mount air conditioning unit (2) further comprises: a part d

Description

Indoor air conditioning unit

Technical field

The present invention relates to a ceiling mount indoor air conditioning unit and particularly relates to an indoor air conditioning unit that has a filter cleaning function.

Prior art

In the field of ceiling-mounted indoor air conditioning units, indoor air conditioning units that are equipped with a filter cleaning function as described in patent document 1 (JP-A n .º 2007-40689), for example, are frequent because they save users the problem of having to clean the filter. The indoor air conditioning unit described in patent document 1 (JP-A No. 2007-40689) is of a type that collects, in a dust box, the dust that has been removed from the filter by a brush, and the user lowers the dust box from a body through a part that goes up and down at an appropriate time and discards the dust that has been collected inside.

Description of the invention

<Technical problem>

However, the dust box moves along with the brush to clean the filter, so that the dust box is incorporated in a movement mechanism that causes the dust box to move, and when the dust box the dust is lowered, the movement mechanism is also lowered. For this reason, when the user discards the dust from the dust box, this is accompanied by work to remove the dust box from the movement mechanism, so that from the point of view of the ease of handling for the user, there is a need for further improvement.

EP 1741992A2 discloses an indoor unit and an air conditioner comprising a housing installed in a ceiling and an air inlet rack arranged for raising and lowering for maintenance and a cleaning mechanism that includes a brush arranged for move from side to side in one direction in order to sweep the surface of the air filter. A similar indoor unit and air conditioner are also disclosed in JP 2007-225171 A.

An object of the present invention is to provide a ceiling-mounted indoor air conditioning unit that is easy for the user to handle and with which the dust collected by cleaning the filter can be easily disposed of.

<Solution to the problem>

An indoor air conditioning unit corresponding to a first aspect of the present invention is a ceiling mounted indoor air conditioning unit comprising a body, a vertical reciprocating motion panel, a lifting and lowering mechanism, a filter, a filter drive part, a cleaning element, a cleaning element drive part and a dust box. The body has a suction opening in its lower surface. The vertical reciprocating motion panel closes the suction opening at the time of stopping operation and descends to a predetermined position at the time of maintenance. The lifting and lowering mechanism causes the vertical reciprocating movement panel to move in an upward and a downward direction. The filter removes the dust included in the air flowing in from the suction opening. The filter drive part causes the filter to move when cleaning the filter. The cleaning element causes the dust that adheres to the filter to separate from the filter. The cleaning element drive part makes the cleaning element work. The dust box is detachably attached to the vertical reciprocating panel and collects dust separated from the filter.

In this indoor air conditioning unit, the dust box is located on the vertical alternative movement panel, whereby the dust box can be lowered by the vertical alternative movement panel, and it is possible to clean the dust box. the dust In addition, the weight of the vertical reciprocating motion panel increases, it is difficult for the vertical reciprocating motion panel to swing and the resting placement of the vertical reciprocating motion panel is stable.

An indoor air conditioning unit corresponding to a second aspect of the present invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which at the time of maintenance, the box for dust descends along with the panel

of reciprocating vertical movement, and the cleaning element drive part remains in the body.

In this indoor air conditioning unit, the cleaning element drive part does not descend accompanying the dust box, so that at the time of maintenance, it is not necessary to disassemble the actuating part of the cleaning element. Cleaning the vertical alternative motion panel, and the job of disassembling the dust box is easy.

An indoor air conditioning unit corresponding to a third aspect of the present invention is the indoor air conditioning unit corresponding to the second aspect of the present invention, in which the filter and the filter drive part also They remain in the body.

In this indoor air conditioning unit, the cleaning element drive part, the filter and the filter drive part do not descend accompanying the dust box, so that at the time of maintenance, no it is necessary to disassemble the cleaning element drive part, the filter and the filter drive part of the vertical reciprocating panel, and the job of disassembling the dust box is easy. In addition, the load acting on the lifting and lowering mechanism is relieved when the lifting and lowering mechanism raises and lowers the vertical alternative movement panel.

An indoor air conditioning unit corresponding to a fourth aspect of the present invention is the indoor air conditioning unit corresponding to any of the first to third aspects of the invention, in which the cleaning element is attached to the dust box.

In this indoor air conditioning unit, it is possible to make the cleaning element and the dust box modular, so that assembly viability is improved.

An indoor air conditioning unit corresponding to a fifth aspect of the present invention is the indoor air conditioning unit corresponding to the fourth aspect of the present invention, in which the vertical reciprocating movement panel has an element of clamping, an ejection element and an operating element. The clamping element holds the dust box in a predetermined position. The ejection element ejects the dust box in a removal direction from the predetermined position. The operating element releases the holding of the dust box by the holding element and causes the ejection element to eject the dust box.

In this indoor air conditioning unit, the release of the holding of the dust box by the holding element and the expulsion of the dust box by the ejection element are carried out simply by operating the operating element, of so that the indoor air conditioning unit is easy for the user to handle. In addition, the ejection element causes the dust box to exit slightly in the extraction direction, so that the user can reliably recognize that the dust box is outside the vertical reciprocating motion panel.

An indoor air conditioning unit corresponding to a sixth aspect of the present invention is the indoor air conditioning unit corresponding to the fifth aspect of the present invention, in which the clamping element includes a claw. The claw grabs the dust box when the dust box is placed in the default position.

In this indoor air conditioning unit, when the dust box is attached to the vertical reciprocating motion panel, the claw grabs the dust box and holds the dust box in the predetermined position. As a result, a situation in which the vertical reciprocating motion panel rises without the dust box being attached to it is avoided.

An indoor air conditioning unit corresponding to a seventh aspect of the present invention is the indoor air conditioning unit corresponding to the sixth aspect of the present invention, in which the ejection element causes the claw to move in a direction away from the dust box when the ejector ejects the dust box.

In this indoor air conditioning unit, the operation of ejecting the dust box and the operation of releasing the claw from the dust box are intertwined, so that a dust box can be removed with a Just touch, and improve the ease of maintenance.

An indoor air conditioning unit corresponding to an eighth aspect of the present invention is the indoor air conditioning unit corresponding to any of the first to third aspects of the present invention, in which the placement of the panel of alternative vertical movement that goes up and down in a state where there is no dust inside the dust box and the placement of the vertical alternative movement panel that goes up and down in a state where dust fills the inside of the box for the powder they are substantially the same placement.

In this indoor air conditioning unit, the placement of the vertical alternative motion panel when it descends with dust collected inside the dust box and the placement of the vertical alternative motion panel when it rises while the inside of the dust box is Vacuum are substantially the same placement, so that a feeling of stability in the operation of raising and lowering the vertical reciprocating motion panel can be transmitted to the user.

An indoor air conditioning unit corresponding to a ninth aspect of the present invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which the body also has an upper body and a body. lower. In the lower body a lower surface panel is included that forms the contour of the suction opening.

In this indoor air conditioning unit, when the vertical reciprocating motion panel is closing the suction opening, the bottom surface panel and the vertical reciprocating motion panel appear as if they were integrated, so that the design is improved.

An indoor air conditioning unit corresponding to a tenth aspect of the present invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which the dust box also serves as the material of vertical alternative motion panel reinforcement.

In this indoor air conditioning unit, the dust box prevents deformation of the vertical reciprocating motion panel, so that the amount of use of the sheet metal element that has been conventionally used as a reinforcing material is reduced, which results in a reduction of material cost.

An indoor air conditioning unit corresponding to an eleventh aspect of the present invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which at the time of operation, for the purpose of Allowing air to flow in from the suction opening, the vertical reciprocating motion panel rotates along with the dust box around the proximity of its own end and opens the suction opening. An air resistance reduction structure is arranged in the dust box that allows the entering air to advance smoothly in the direction of the filter.

In this indoor air conditioning unit, the air resistance of the dust box with respect to the sucked air decreases, and the noise caused by the wind when the sucked air passes through the dust box decreases.

An indoor air conditioning unit corresponding to a twelfth aspect of the present invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which the body also has an outwardly blowing opening. , a suction flow path, a blow out flow path and a filter housing part. The suction flow path leads inside from the suction opening. The outward flow flow path leads from the inside to the outward blow opening. The filter housing part is located between the suction flow path and the blow out flow path and temporarily houses the filter that moves towards it.

The suction opening and the blow-out opening are located a predetermined distance apart from each other such that the air leaving the blow-out opening is not sucked into the suction opening, so that it necessarily forms an unused space between the suction flow path and the blow out flow path. In this indoor air conditioning unit, that unused space is used as a temporary housing for the filter, so it is not necessary to make the body shape larger or make the suction opening smaller in order to guarantee a place of accommodation for the filter.

An indoor air conditioning unit corresponding to a thirteenth aspect of the present invention is the indoor air conditioning unit corresponding to the twelfth aspect of the present invention, in which the body also has a recessed portion that is arranged in a suction flow path formation wall that forms the suction flow path and into which an end portion of the filter fits inside.

In this indoor air conditioning unit, the edge of the filter end part and the proximity of the edge fit the recessed part, so that the edge of the filter end part and the proximity of the edge are not exposed to the suction flow path. As a result, air can pass through the interior of the suction flow path without being obstructed by the edge of the filter end portion and the proximity of the edge.

An indoor air conditioning unit corresponding to a fourteenth aspect of the present

The invention is the indoor air conditioning unit corresponding to the first aspect of the present invention, in which at the time of operation, the lifting and lowering mechanism causes the vertical reciprocating movement panel to move to a second predetermined position. which is closer to the ceiling than the predetermined position away from the suction opening, at the time of shutdown, the lifting and lowering mechanism causes the vertical reciprocating movement panel to move to a third predetermined position in which the panel of Alternative vertical movement closes the suction opening, and at least the vertical alternative movement panel that moves to the predetermined position is accompanied by the dust box.

In this indoor air conditioning unit, the dust box can be removed from the vertical reciprocating panel in the maintenance position, and the job of discarding the dust collected in the dust box is easy, so that the Indoor air conditioning unit is easy to handle for the user.

<Advantageous effects of the invention>

In the indoor air conditioning unit corresponding to the first aspect of the present invention, the dust box is located in the vertical alternative motion panel, whereby the dust box can be lowered by the alternative motion panel vertical, and it is possible to clean the dust box. In addition, the weight of the vertical reciprocating motion panel increases, it is difficult for the vertical reciprocating motion panel to swing and the resting placement of the vertical reciprocating motion panel is stable.

In the indoor air conditioning unit corresponding to the second aspect of the present invention, at the time of maintenance, it is not necessary to disassemble the cleaning element drive part of the vertical reciprocating movement panel, and the work of disassembling the dust box is easy.

In the indoor air conditioning unit corresponding to the third aspect of the present invention, at the time of maintenance, it is not necessary to disassemble the cleaning element drive part, the filter and the filter drive part of the Vertical alternative motion panel, and the job of disassembling the dust box is easy. In addition, the load acting on the lifting and lowering mechanism is relieved when the lifting and lowering mechanism raises and lowers the vertical alternative movement panel.

In the indoor air conditioning unit corresponding to the fourth aspect of the present invention, it is possible to make the modular cleaning element and dust box, so that the assembly viability improves.

In the indoor air conditioning unit corresponding to the fifth aspect of the present invention, the release of the dust box holder by the clamping element and the expulsion of the dust box by the ejection element is They are performed simply by operating the operating element, so that the indoor air conditioning unit is easy for the user to handle. In addition, the ejection element causes the dust box to exit slightly in the extraction direction, so that the user can reliably recognize that the dust box is outside the vertical reciprocating motion panel.

In the indoor air conditioning unit corresponding to the sixth aspect of the present invention, when the dust box joins the vertical reciprocating motion panel, the claw grabs the dust box and holds the dust box in The default position. As a result, a situation in which the vertical reciprocating motion panel rises without the dust box being attached to it is avoided.

In the indoor air conditioning unit corresponding to the seventh aspect of the present invention, the operation of ejecting the dust box and the operation of releasing the claw from the dust box are intertwined, so that a One-touch dust box removal, and ease of maintenance improves.

In the indoor air conditioning unit corresponding to the eighth aspect of the present invention, the placement of the vertical alternative movement panel when it descends with dust collected inside the dust box and the placement of the vertical alternative movement panel when it ascends the inside of the empty dust box being substantially the same placement, so that a feeling of stability in the operation of raising and lowering the vertical alternative movement panel can be transmitted to the user.

In the indoor air conditioning unit corresponding to the ninth aspect of the present invention, when the vertical reciprocating motion panel is closing the suction opening, the bottom surface panel and the movable panel appear as if they were integrated, so That design is improved.

In the indoor air conditioning unit corresponding to the tenth aspect of the present invention, the dust box prevents deformation of the vertical reciprocating motion panel, so that the

amount of use of the sheet metal element that was conventionally used as a reinforcing material, which results in a reduction in material cost.

In the indoor air conditioning unit corresponding to the eleventh aspect of the present invention, the air resistance of the dust box with respect to the sucked air decreases, and the noise caused by the wind when the sucked air passes through the Dust box decreases.

In the indoor air conditioning unit corresponding to the twelfth aspect of the present invention, that unused space is used as a temporary housing for the filter, so that it is not necessary to make the body shape larger or make the Smaller suction opening in order to ensure a place of accommodation for the filter.

In the indoor air conditioning unit corresponding to the thirteenth aspect of the present invention, the edge of the filter end part and the proximity of the edge fit into the recessed part, so that the edge of the end part of filter and the proximity of the edge are not exposed to the suction flow path. As a result, air can pass through the interior of the suction flow path without being obstructed by the edge of the filter end portion and the proximity of the edge.

In the indoor air conditioning unit corresponding to the fourteenth aspect of the present invention, the dust box can be removed from the vertical reciprocating movement panel in the maintenance position, and the job of discarding the dust collected in the box for the dust is easy, so the indoor air conditioning unit is easy for the user to handle.

Brief description of the drawings

Figure 1 is an exterior perspective view of an indoor air conditioning unit corresponding to an embodiment of the present invention.

Figure 2 (a) is a side view of the indoor air conditioning unit at the time of stopping operation, Figure 2 (b) is a side view of the indoor air conditioning unit at the time of operation, and Figure 2 (c) is a side view of the indoor air conditioning unit at the time of maintenance.

Figure 3 is a cross-sectional view of the indoor air conditioning unit.

Figure 4 is an exploded perspective view of a body of the indoor air conditioning unit.

Figure 5 is an exploded perspective view of a lower body.

Figure 6 is a plan view of a decorative panel.

Figure 7 is a perspective view of the decorative panel as seen from the direction A in Figure 6.

Figure 8 is a perspective view of the decorative panel as seen from the direction B in Figure 6.

Figure 9 is an exploded perspective view of a filter housing frame of a filter cleaning mechanism.

Figure 10 is a cross-sectional view of the interior of the filter housing frame.

Figure 11 (a) is a cross-sectional view of a filter housing part when the filters are in a front housing part, Figure 11 (b) is a cross-sectional view of the filter housing part when the filters are in a rear housing part, and Figure 11 (c) is a cross-sectional view of the filter housing part when removing the filters.

Figure 12 is an exploded perspective view of a mobile panel.

Figure 13 is a perspective view of the decorative panel.

Figure 14 is an exploded perspective view of a hinge coupling device.

Figure 15 is an exploded perspective view of a lifting and lowering device.

Figure 16 is a view of the scheme of distribution of parts within the lifting and lowering device.

Figure 17 is a perspective view of a locking device. Figure 18 is a perspective view of a state in which the mobile panel has opened a suction opening. Figure 19 is a perspective view of a state in which the mobile panel is descending. Figure 20 is a perspective view of a dust box and the movable panel after the box for the

dust has been extracted from it. Figure 21 is a perspective view of an extraction mechanism. Figure 22 is an exploded perspective view of the extraction mechanism. Figure 23 is an enlarged cross-sectional view of a blown out module. Figure 24 is a perspective view of the blown out module. Figure 25 is a perspective view of a mobile panel of an indoor air conditioning unit

which corresponds to a modification. Figure 26 is an enlarged view of part C in Figure 25. Figure 27 is a side view of a hinge. Figure 28 is a plan view of the hinge and a hinge coupling mechanism when the movable panel

It is closing the suction opening.

Figure 29 is a plan view of the hinge and hinge coupling mechanism when the mobile panel Open the suction opening. Figure 30 is a plan view of the hinge and hinge coupling mechanism when the mobile panel

It is far from the suction opening. Figure 31 (a) is a cross-sectional view of the lower body, Figure 31 (b) is a sectional view partial transverse of the lower body immediately before the mobile panel opens the suction opening, and the

Figure 31 (c) is a partial cross-sectional view of the lower body immediately after the panel mobile has opened the suction opening. Figure 32 (a) is a cross-sectional view of the lower body, Figure 32 (b) is a sectional view

partial transverse of the lower body immediately after the movable panel has begun to descend, and

Figure 32 (c) is a partial cross-sectional view of the lower body when the movable panel has descended. Figure 33 (a) is a cross-sectional view after a panel locking part has left a panel lock ring, figure 33 (b) is a cross-sectional view when the panel lock part it is pushed by the panel lock ring and moves backward, and figure 33 (c) is a sectional view transverse when the panel lock part has fitted into the panel lock ring.

Figure 34 is a plan view of an end portion of the movable panel.

Figure 35 is a front view of a metal suspension accessory coupled to a distal end of a cable of the lifting and lowering device. Figure 36 (a) is a plan view of a suspension metal accessory coupling element to which

The metal suspension fitting is attached, and Figure 36 (b) is a cross-sectional view taken at

along the X-X line in Figure 36 (a). Figure 37 (a) is a plan view of the metal suspension accessory coupling element immediately before the metal suspension fitting is attached thereto, and Figure 37 (b) is a view in cross section taken along the Y-Y line in Figure 37 (a).

Figure 38 (a) is a plan view of a locking device, and Figure 38 (b) is a front view of the locking device

Best way to carry out the invention

An embodiment of the present invention will now be described with reference to the drawings. The realization to

The following is a specific example of the present invention and is not intended to limit the technical scope of the present invention.

<Configuration of indoor air conditioning unit 2>

Figure 1 is an exterior perspective view of an indoor air conditioning unit corresponding to the embodiment of the present invention. In Fig. 1, an indoor air conditioning unit 2 is equipped with a body 20 having a suction opening 20a and an outward blowing opening 20b on its bottom surface, a movable panel 24 that opens and closes the opening suction 20a and a first blow direction adjustment blade 52 that opens and closes the blow opening out 20b. The suction opening 20a and the blow-out opening 20b are adjacent but are separated a certain distance from each other to ensure that the so-called short circuit or a phenomenon in which the air that has been blown out of the opening of blown out 20b is sucked back into the suction opening 20a. The lower surface of the body 20 is covered by a decorative panel 21 so that what is really exposed to the ceiling surface is the decorative panel 21, and the contours of the suction opening 20a and the blown out opening 20b are formed by the decorative panel 21.

Figure 2 (a) is a side view of the indoor air conditioning unit at the time of stopping operation, Figure 2 (b) is a side view of the indoor air conditioning unit at the time of operation, and Figure 2 (c) is a side view of the indoor air conditioning unit at the time of maintenance. In Figures 2 (a), 2 (b) and 2 (c), when the indoor air conditioning unit 2 stops, the mobile panel 24 appears as if it were integrated with the decorative panel 21. In Figure 2 (b), when the indoor air conditioning unit 2 is operating, the movable panel 24 opens the suction opening 20a, and the first blow direction adjustment blade 52 opens the blow opening out 20b. One end of the mobile panel 24 is supported on the body 20 by hinges, and the mobile panel 24 rotates and opens the suction opening 20a.

Furthermore, in Fig. 2 (c), the mobile panel 24 can descend to a maintenance position that the user can reach by hand in a state in which the mobile panel 24 is suspended from cables 71 extending from the body 20. However, the mobile panel 24 cannot descend to the maintenance position in a state in which its end is supported on the body 20 by the hinges, so that the mobile panel 24 first closes the suction opening 20a and then it descends to the maintenance position after the support by the body 20 has been released.

Figure 3 is a cross-sectional view of the indoor air conditioning unit. In Figure 3, the indoor air conditioning unit 2 is further equipped with filters 9, a filter cleaning mechanism 10, an indoor heat exchanger 12, an indoor fan 13, a drain pan 14 and a blown out module 50. At the time of operation of the indoor air conditioning unit 2, the suction opening 20a and the blown out opening 20b open, the indoor fan 13 rotates and is sucked air in from the suction opening 20a.

(Indoor heat exchanger 12)

The indoor heat exchanger 12 has a form in which two heat exchangers are adjacent in different inclined fittings; for ease of description, the heat exchanger on the upper side will be called the upper heat exchanger 12a and the heat exchanger on the lower side will be called the lower heat exchanger 12b.

The upper end of the upper heat exchanger 12a is placed in the upper part of the interior of the body 20 and the angle at which the upper heat exchanger 12a tilts from its upper end towards its lower end is set equal to or less than 45 ° with with respect to a vertical line, so that the condensation water travels reliably through the upper heat exchanger 12a towards the drain pan 14. For this reason, it is not necessary for the drain pan 14 to be located below of the entire upper heat exchanger 12a, and the drain pan 14 is located only below the proximity of the lower end of the upper heat exchanger 12a.

The upper end of the lower heat exchanger 12b is located close to the lower end of the upper heat exchanger 12a, and the angle at which the lower heat exchanger 12b tilts from its upper end to its lower end exceeds 45 ° with respect to a vertical line For this reason, there is a possibility that the condensation water will fall directly from it, so that the drain pan 14 is located below the entire lower heat exchanger 12b.

The upper heat exchanger 12a is configured with a larger dimension than the lower heat exchanger 12b, and the lower end corner of the upper heat exchanger 12a is close to the center of the upper end of the lower heat exchanger 12b. For this reason, this compensates the extent to which the upper heat exchanger 12a becomes longer than the lower heat exchanger 12b.

(Indoor fan 13)

The indoor fan 13 is a cross flow fan, has a width dimension that is longer than its diameter, and sucks air from a direction perpendicular to its axis of rotation, so that the indoor fan 13 can suck air from the only suction opening 20a and blow out air to the only blow out opening 20b. The air that has been sucked in passes through the filters 9 and the indoor heat exchanger 12 and enters the indoor fan 13. Hereinafter, the air flow path from the suction opening 20a to the indoor fan 13 will be called the suction flow path 31a.

Air that has been blown out from the indoor fan passes through the blow out opening module 50 and blows out from the blow out opening 20b. In the outward blow opening 20b is located the first blow direction adjustment blade 52 which is a component of the outward blow opening module 50; The angle of inclination of the first blow direction adjustment blade 52 can be adjusted by means of a motor and, at the time of stopping operation, the first blow direction adjustment blade 52 closes the blow opening outwards 20b. Hereinafter, the air flow path from the indoor fan 13 to the outward blow opening 20b will be referred to as the outward flow flow path (second outward flow flow path 41a and first flow path blow flow out 51a). Between the indoor fan 13 and the drain pan 14 and on the side of the second outward flow flow path 41a, a tongue part 15 is arranged, and this tongue part 15 prevents leakage of the air blown out and improves performance Additionally, the lower end part of the lower heat exchanger 12b is positioned below the tongue part 15, so that the dead space can be used effectively compared to the conventional positional relationship between the tongue part and the heat exchanger (for example, see JP-A No. 10-205796). The tongue part 15 is an independent element of the indoor fan 13 and the drain pan 14.

(Body 20)

The indoor air conditioning unit 2 is equipped with the filter cleaning mechanism 10 above the movable panel 24, so that the height dimension of the body 20 becomes larger compared to an indoor air conditioning unit standard that is not equipped with the filter cleaning mechanism 10. The indoor air conditioning unit 2 attaches an extension frame to the body of a conventional indoor air conditioning unit in order to use the body of a unit of conventional indoor air conditioning.

Figure 4 is an exploded perspective view of the body of the indoor air conditioning unit. In Figure 4, the body 20 is broadly divided into an upper body 26, a body extension frame 27 and a lower body 28. Extruded polystyrene forming the suction flow path 31a is included in the upper body 26 and the second outward flow flow path 41a shown in Figure 3, the indoor heat exchanger 12 and the indoor fan 13. As for the assembly order of the body 20, the body extension frame 27 is coupled to the upper body 26 and the lower body 28 is coupled to the body extension frame 27. The body extension frame 27 is an intermediate element that interconnects the upper body 26 and the lower body 28; the outer shell of the body extension frame 27 is made of metal sheet and is shaped like a cube, and the body extension frame 27 has sufficient strength with respect to the weight gain of the lower body 28. In the lower body 28, they are located the filter cleaning mechanism 10, the decorative panel 21 and the blow-out opening module 50 shown in Figure 3.

Figure 5 is an exploded perspective view of the lower body. In Fig. 5, hinge coupling devices 6, lifting and lowering devices, a filter housing frame 104 of the filter cleaning mechanism 10, the blow-out opening module 50 and a housing module Blown out opening 50a are mounted on the upper surface of the decorative panel 21. The mobile panel 24 is mounted on the lower surface of the decorative panel 21.

Figure 6 is a plan view of the decorative panel of the indoor air conditioning unit, Figure 7 is a perspective view of the decorative panel as seen from the direction A in Figure 6, and Figure 8 is a perspective view of the decorative panel as seen from the direction B in figure 6. In figure 6, figure 7 and figure 8, the blow-out opening module 50 and the filter housing frame 104 of the filter cleaning mechanism 10 are located along the longitudinal direction on the upper surface of the decorative panel 21. The blown out module 50 and the filter housing frame 104 are adjacent in the width direction of the decorative panel 21.

Filter drive motors 104f are attached to both ends of the filter housing frame 104. The filter drive motors 104f cause a roller 102 to rotate through gears to make the filters move 9. The lifting devices and descent 7 are located in the proximity of both ends

of the decorative panel 21 so that they are located on both sides of the filter housing frame 104. For ease of description, the lifting and lowering device 7 on the left side in the plan view of Figure 6 will be referred to as the first device of lifting and lowering, and the lifting and lowering device 7 on the right side in the plan view will be referred to as the second lifting and lowering device 702.

The area around the second lifting and lowering device 702 is narrow compared to the area around the first lifting and lowering device 701, the second lifting and lowering device 702 is close to the filter housing frame 104 in a state where that the second lifting and lowering device 702 is inclined with respect to the width direction of the decorative panel 21 in order to eliminate occupancy space and, as shown in Figure 7, the filter drive motor 104f is positioned so that it occupies a gap in the center of the second lifting and lowering device 702.

On the other hand, the area around the first lifting and lowering device 701 is configured to be wide compared to the area around the second lifting and lowering device 702, and a brush drive motor 108f, a first drive part of the blow direction adjustment blade 57, a second drive part of the blow direction adjustment blade 58 and an electrical component box 40 (see Figure 8) are located, in addition to the filter drive motor 104f, in the area around the first lifting and lowering device 701.

<Filter cleaning mechanism 10>

Figure 9 is an exploded perspective view of the filter housing frame of the filter cleaning mechanism. In Figure 9, the filters 9 at whose edges zippers 101 are formed, the roller 102 having pinion gears 102a, filter stabilization plates 103 preventing the elevation of the filters 9, and the filter housing frame 104 which It forms a movement path of the filters 9, they are attached to the filter housing part.

(Filters 9)

The filters 9 have sieve parts 9a and edge parts 9b that hold the peripheries of the sieve parts 9a, and the filters 9 are located on the front surface side of the indoor heat exchanger 12 as shown in the figure 3 and remove dust from the air that has been introduced from the interior space. Therefore, the filters 9 prevent the dust floating in the air from contaminating the surface of the indoor heat exchanger 12. On the edge portions 9b of the filters 9, the zippers 101 that engage with the pinion gears 102a are formed .

(Roller 102)

The roller 102 has the plurality of pinion gears 102a and a coupling shaft 102b that coaxially couples the plurality of pinion gears 102a together. The pinion gears 102a engage with the zippers 101 of the filters 9 and rotate to thereby make the filters 9 move horizontally.

(Filter housing frame 104)

The filter housing frame 104 has an upper frame 104a and lower frames 104b, and a filter housing part is formed because the upper frame 104a and the lower frames 104b are spaced a certain range from each other and vertically superimposed. In addition, motor housing parts 104c, and transmission gears 104d that engage with pinion gears 102a, drive gears 104e driving the transmission gears 104d and filter drive motors 104f are formed in the upper frame 104a. they make the drive gears 104e rotate, they are housed in the motor housing parts 104c.

The details of the filter housing part and the positional relationship of the filter drive motors 104f and the brush drive motor 108f with respect to the filter housing frame 104 will now be described with reference to the drawings. Figure 10 is a cross-sectional view of the interior of the filter housing frame. In Fig. 10, the filter drive motors 104f and the brush drive motor 108f are indicated by dashed and double dotted lines to clarify the positions of the filter drive motors 104f and the brush drive motor 108f with with respect to the filter housing frame 104. The filter drive motors 104f and the brush drive motor 108f are positioned on both sides in the longitudinal direction of the filter housing frame 104, that is, above both sides in the longitudinal direction of the suction opening 20a.

In Fig. 10, the drive gears 104e are coupled to rotating shafts of the filter drive motors 104f, and the transmission gears 104d engage with these drive gears 104e. These transmission gears 104d cause the pinion gears 102a of the roller 102 to rotate. The filter housing part comprises a front housing part 105 and a rear housing part 106, and the

lengths of the front housing part 105 and the rear housing part 106 correspond to the lengths in the longitudinal direction of the filters 9.

Figure 11 (a) is a cross-sectional view of the filter housing part when the filters are in the front housing part, Figure 11 (b) is a cross-sectional view of the filter housing part when the filters are in the rear housing part, and Figure 11 (c) is a cross-sectional view of the filter housing part when removing the filters. In FIGS. 11 (a), 11 (c) and 11 (c), the front housing part 105 has a linear front housing path 15a which serves as a path when the filters 9 move to the rear housing part 106, and the rear housing part 106 has a rear housing travel 106a that drives the filters 9 that move therefrom from the front housing part 105.

As shown in Figure 3, the terminal end portion of the front housing part 105 fits into a recessed portion 32 that is recessed outwardly from the wall that forms the suction flow path 31a, so that when the indoor air conditioning unit 2 is in operation, the edge portions 9b of the filters 9 are not exposed to the suction flow path 31a. In addition, the rear housing portion 106 is located between the suction opening 20a and the blow-out opening 20b and below the drain pan.

In the rear housing travel 106a, there is a first curved zone 106b and a second curved zone 106c, and the first curved zone 106b causes the filters 9 that the roller 102 lets out to bend in a direction that approximates the centers of the pinion gears 102a. The second curved zone 106c causes the filters 9 to bend in the opposite direction to the first curved zone 106b.

In addition, the filters 9 are supported from below by filter holders 91 and, when the user removes the filters 9 from the filter housing frame 104 for maintenance, the user rotates the filter holders 91 downwards and removes the filters 9.

(Position sensing switches 107)

In Figure 11, the filters 9 move inside the filter housing frame 104 and stop at predetermined positions. The positions in which the filters 9 stop are detected by position sensing switches 107. The position sensing switches 107 are located in the vicinity of the terminal end of the front housing part 105 and in the vicinity of the terminal end of the rear housing portion 106. On the external sides of the position sensing switches 107, hinges are mounted by means of hinges and, when an external force is applied, the levers rotate and push the buttons of the position sensing switches 107 .

(Brush 108)

As shown in Figure 10, the bristles 108a of the brush 108 are located on the opposite side of the roller 102 on the other side of the filters 9 and touching the filters 9. In other words, the roller 102 is on the upper side of the filters 9, and the brush 108 is below the filters 9. A final transmission gear 108c is coupled to a rotating shaft of the bristles 108a, and a driving gear 108e is coupled to a rotating shaft of the driving motor of 108f brush This drive gear 108e and an intermediate drive gear 108d engage, and the intermediate drive gear 108d and the final drive gear 108c engage.

In addition, the brush 108 is positioned between the linear front housing travel 105a and the curved rear housing travel 106a, so that when the filters 9 move between the front housing travel 105a and the rear housing travel 106a, the brush 108 can touch all the sieve parts 9a of the filters 9.

The gear between the final transmission gear 108c and the intermediate transmission gear 108d is released when the mobile panel 24 opens and when the mobile panel lowers 24, and the final transmission gear 108c moves together with the mobile panel 24 and the brush 108. Additionally, when the movable panel 24 closes the suction opening 20a, the final transmission gear 108c and the intermediate transmission gear 108d engage again.

Figure 12 is an exploded perspective view of the movable panel, and in Figure 12, the bristles 108a of the brush 108 are fixed to a rotating shaft 108b. The bristles 108a are thin bristles made of plastic, so that they can be introduced into the filter holes 9 and remove dust reliably. The final drive gear 108c is coupled to both ends of the rotating shaft 108b.

(Dust box 109)

In Fig. 12, a dust box 109 has a dust intake opening 109a at its top in the

side towards the blow-out opening 20b and supports the rotating shaft 108b through bearings 109b at both ends in the longitudinal direction of the dust intake opening 109a. In addition, a comb portion 109c that strikes from the brush 108 the dust that the brush 108 has scratched from the filters 9 is attached to the dust inlet opening 109a.

As shown in Figure 2 (b), the dust box 109 is attached towards the axis of rotation of the movable panel 24, and the brush 108 is further away towards the blow-out opening 20b in the end of the suction opening 20a, so that when the movable panel 24 rotates and opens the suction opening 20a, the dust box 109 moves away from the filters 9 together with the brush 108 and does not obstruct the air course sucked. In addition, in order to allow the air entering the dust box 109 to gently advance towards the filters 9, a surface 109d of the dust box 109 oriented towards the sucked air is inclined and reduces the air resistance.

When the dust box 109 is fixed to the mobile panel 24, the mobile panel 24 is structurally reinforced by the dust box 109, so that the use rate of the metal sheet element that had been conventionally used for reinforcement is decreased.

(Filter cleaning operation 9)

In the indoor air conditioning unit 2, the filters 9 are cleaned automatically and periodically by a control unit or by a remote control when the user considers it necessary. The mechanism of this will be described below.

In Figure 11, the zippers 101 of the filters 9 fit into the front housing travel 105a, and one end of each of the zippers 101 (hereinafter referred to as first end portions 101a) meshes with the pinion gears 102a. When the roller 102 rotates, the rotation is transmitted from the pinion gears 102a to the zippers 101, and the zippers 101 of the filters 9 are transported to the rear housing travel 106a by the roller 102. The roller 102 continues to rotate, by which the first end portions 101a of the zippers 101 reach the terminal end of the rear housing travel 106a.

When the first end portions 101a of the zippers 101 reach the terminal end of the rear housing travel 106a, the first end portions 101a cause the levers of the position sensing switches 107 to rotate and switch the detection detectors switches ON. position 107. The control unit evaluates from the ON signals emitted from the position sensing switches 107 that the first end portions 101a of the zippers 101 have reached the terminal end of the rear housing travel 106a and causes the Roller rotation 102 stops. At this time, all of the zippers 101 of the filters 9 fit into the rear housing travel 106a, and the other end of each of the zippers 101 (hereinafter referred to as second end portions 101b) meshes with the gears of sprocket 102a.

In Figure 3 and Figure 11, when the filters 9 move, the dust that had adhered to the surfaces of the filters 9 is scratched by the brush 108 and collected in the dust box 109. The brush 108 rotates at least during the period in which the filters 9 are moving from the front housing travel 105a to the rear housing travel 106a, and the direction of rotation thereof is an opposite direction to the direction of travel of the filters 9.

When the filters 9 move from the front housing travel 105a to the rear housing travel 106a and the dust extraction ends, the control unit causes the roller 102 to rotate in reverse. The second end portions 101b of the zippers 101 of the filters 9 mesh with the pinion gears 102a, so that the rotation is transmitted from the pinion gears 102a to the zippers 101 and the filters 9 are transported towards the housing path front 105a by the roller 102. The roller 102 continues to rotate in reverse, whereby the second end portions 101b of the zippers 101 reach the terminal end of the front housing travel 105a.

When the second end portions 101b of the zippers 101 reach the terminal end of the front housing travel 105a, the second end parts 101b cause the levers of the position sensing switches 107 to rotate and switch ON the detection switches of ON position 107. The control unit evaluates from the ON signals emitted from the position sensing switches 107 that the second end portions 101b of the zippers 101 have reached the terminal end of the front housing travel 105a and causes the Roller rotation 102 stops. At this time, the zippers 101 of the filters 9 fit into the front housing travel 105a, and the first end portions 101a of the zippers 101 engage with the pinion gears 102a.

(Devices associated with the operation of the mobile panel 24)

Figure 13 is a perspective view of the decorative panel. As shown in Figure 13, on the surface

on the ceiling side of the decorative panel 21 the hinge coupling devices 6 and the locking devices 8 are located, in addition to the lifting and lowering devices 7. Next, the detailed structures of the coupling devices of hinge 6, lifting and lowering devices 7 and locking devices 8.

(Hinge coupling devices 6)

The hinge coupling devices 6 rotatably support one end of the mobile panel 24 when the indoor air conditioning unit 2 is in operation and release the support from one end of the mobile panel 24 when the mobile panel 24 is lowered to The maintenance position.

Figure 14 is an exploded perspective diagram of the hinge coupling devices. In Fig. 14, each of the hinge coupling devices 6 has a rotating element 61, a sliding element 62, a first pin 63, a pinion gear 64, a motor 65, a fixing element 66, a second pin 67 and screws 68. The rotating element 61 is a solid U-shaped body, and a rod-shaped support shaft 61a projects outwardly from an end surface. In addition, a shaft hole 61b is formed at an end portion of the rotating element 61.

In the sliding element 62, a rack 62a is formed which meshes with the pinion gear 64 and arms 62b which are located on both sides of both ends of the shaft hole 61b in the rotating element.

61. In addition, a first sliding hole 62c is formed in the arms 62b and a second sliding hole 62d is formed in the vicinity of the base of the rack 62a. Motor 65 is a stepper motor and causes the pinion gear 64 to rotate. Motor 65 has through holes 65a through which screws 68 pass.

In the fixing element 66, a sliding space 66a is formed which slidably holds the sliding element 62, a gear space 66b inside which the pinion gear 64 is inserted, and threaded holes 66c into which the screws are screwed inside. screws 68. In addition, a first through hole 66d and a second through hole 66e are formed in the walls that form the sliding space 66a.

The sliding element 62 is located in the sliding space 66a in the fixing element 66, and the rotating element 61 is located in the sliding element 62 so that the shaft hole 61b in the rotating element 61 is sandwiched between the arms 62b of the sliding element 62. The first pin 63 is inserted from one end of the first through hole 66d in the fixing element 66, passes through the first sliding hole 62c in the sliding element 62 and of the shaft hole 61b in the rotating element 61, and reaches the other end of the first through hole 66d.

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

(Operation of hinge coupling devices 6)

In Fig. 13 and Fig. 14, when the motors 65 cause the pinion gears 64 to rotate, driving force is transmitted to the zippers 62a that engage with the pinion gears 64, the sliding elements 62 slide along the first pins 63, and the rotating elements 61 move in the direction of the mobile panel 24 or in the opposite direction accompanying the movement of the sliding elements 62. Now, for ease of description, the rotation of the motors 65 to move the rotating elements 61 in the direction in which the rotating elements 61 are coupled to the mobile panel 24 will be referred to as forward rotation, and the rotation of the motors 65 to move the rotating elements 61 in the direction in which the coupling between the rotating elements 61 and the mobile panel 24 released will be called reverse rotation.

Support holes 24c (see Fig. 12) are arranged in the end portion of the movable panel 24 which face the support shafts 61a of the rotating elements 61 and, when the motors 65 rotate forward so that the shafts of support 61a are inserted into the support holes 24c in the mobile panel 24, the coupling between the rotating elements 61 and the mobile panel 24 is established, and the mobile panel 24 can rotate around the first pins 63.

On the other hand, when the motor 65 rotates in a reverse manner so that the support shafts 61a exit the support holes 24c in the mobile panel 24, the coupling between the rotating elements 61 and the mobile panel 24 is released, and the mobile panel 24 cannot rotate around the first pins 63.

(Lifting and lowering devices 7)

Figure 15 is an exploded perspective view of the lifting and lowering devices. In Fig. 15, each of the lifting and lowering devices 7 has a cable 71, a pulley 72, a reel 73, a receiving gear 74, a driving gear 75, a lifting and lowering motor 76, a switch 77 and a housing 78.

The pulley 72 comprises a pulley part 72a and a cam part 72b that are molded in solidarity, and the pulley part 72a supports the cable 71 and rotates accompanying the movement of the cable 71. The cam part 72b comprises a curved surface of small diameter, a curved surface of large diameter and a flat surface that interconnects those two curved surfaces.

The reel 73 picks up the cable 71. The receiving gear 74 is coaxially coupled to and rotates in solidarity with the reel 73. The driving gear 75 meshes with the receiving gear 74 and causes the reel 73 to rotate.

The lifting and lowering motor 76 is a stepper motor and causes the drive gear 75 to rotate. The speed of the lifting and lowering motor 76 is controlled by a number of pulses supplied from the control unit. The control unit has an integrated CPU, memory and motor drive circuit and is located in another position away from the lifting and lowering device 7. The control unit is electrically connected to the lifting and lowering motor 76 via a wire harness .

The switch 77 is a microswitch that has a lever 77a and switches to ON as a result of pushing the lever 77a. The lever 77a always touches the cam part 72b of the pulley 72 and is pushed when placed in front of the large diameter curved surface of the cam part 72b. Switch 77 is also electrically connected to the control unit by means of a wire harness.

The housing 78 is divided into a support housing 78a and a cover 78b. In the support housing 78a are formed a first shaft 79a that supports the pulley 72, a second shaft 79b that supports the reel 73 and the receiving gear 74, and a third shaft 79c that supports the switch 77. The cover 78b covers and protects each of the parts supported in the support housing 78a.

(Operation of lifting and lowering devices 7)

Figure 16 is a view of the distribution scheme of parts within each of the lifting and lowering devices. In Figure 16, when the lifting and lowering devices 7 let the cables 71 out, the lifting and lowering motors 76 cause the driving gears 75 to rotate counterclockwise and cause the receiving gears 74 to rotate clockwise. Therefore, the reels 73 rotate in the direction in which the cables 71 exit.

On the other hand, when the lifting and lowering devices 7 pick up the cables 71, the lifting and lowering motors 76 cause the driving gears 75 to rotate clockwise and cause the receiving gears 74 to rotate counterclockwise. Thus, the reels 73 rotate in the direction in which the cables 71 collect. The amount that is allowed to exit and the amount that is collected from the cables are proportional to the amount of rotation of the lifting and lowering motors 76, and the quantity that is allowed to exit and the quantity that is collected from the cables 71 are controlled as a result of the control by the control unit of the number of pulses that it supplies to the lifting and lowering motors 76.

The movable panel 24 is coupled to the distal ends of the cables 71, so that there is always tension in the cables 71 and, when the cables 71 are released or when the cables 71 are collected, the pulley parts 72a rotate due to the frictional force with the cables 71. At this time, the cam parts 72b also rotate, so that the switches 77 emit ON signals when the levers 77a are positioned in front of the large diameter curved surfaces of the cam parts 72b and emit OFF signals when the levers 77a are placed in front of the curved surfaces of small diameter. While the pulleys 72 rotate, the ON signals and the OFF signals are generated alternately, and these signals are input to the control unit.

However, when the cables 71 become loose and there is no longer tension in the cables 71 due to some reason, for example, such as when the movable panel 24 is going to stop on a table or the like and stops before it has been left a predetermined amount will come out when the cables 71 are released to lower the mobile panel 24 for maintenance, the frictional force between the cables 71 and the pulley parts 72a decreases and the pulleys 72 stop. For this reason, switches 77 emit either the ON signal or the continuously OFF signal. At this time, the control unit assumes that the mobile panel 24 has stopped due to some obstacle since the signals of the switches 77 are constant while the lifting and lowering motors 76 are rotating and immediately causes the lifting motors and descent 76 stop.

(Locking devices 8)

What the mobile panel 24 supports on the body 20 when the mobile panel 24 is closing the suction opening 20a are the hinge coupling devices 6 and the lifting and lowering devices 7. The indoor air conditioning unit 2 is further equipped with the locking devices 8 so that the mobile panel 24 does not fall even though, due to some unforeseen reason, the hinge coupling devices 6 fail and release the support of the mobile panel 24 and the cables 71 of the devices raise and lower 7 end loosening.

Figure 17 is a perspective view of the locking devices. In Fig. 17, each of the locking devices 8 has a moving body 81, a first holding part 82, a second holding part 83, a motor 84 and a spring 85. The moving body 81 has a column shape square, an inclined surface 811 being formed at one end thereof, a rack 81a that meshes with a predetermined gear that is formed on a long side surface 812 whose total length is a maximum length, and a hollow portion 81b that is formed below of zipper 81a. The movable body 81 is held in a state in which it can move in the first holding part 82 with the long side surface 812 oriented vertically upwards.

The first holding part 82 is a cube-shaped box whose upper surface and a side surface are open, a guide groove 82a being formed on the bottom surface and the moving body 81 moving horizontally along that guide groove 82a. Both ends of the guide groove 82a are sandwiched between walls 821 and 822 and a through-opening 82b is formed in a wall 821 through which the movable body 81 passes. A wall 823 is adjacent to walls 821 and 822 which they are located on both sides of both ends of the guide groove 82a and on the wall 823 a plate-shaped projection 82c is formed that projects in the orthogonal direction to the guide groove 82a. When the movable body 81 is being held in the first holding part 82, the inclined surface 811 is always positioned outside the first holding part 82 and the rack 81a is always placed inside the first holding part 82. Additionally, the projection plate-shaped 82c of the first holding part 82 penetrates the hollow part 81b of the movable body 81.

The wall 823 fixes the engine 84 and rotatably supports a pinion gear 84a that is coupled to a rotating shaft of the engine 84. The pinion gear 84a meshes with the rack 81a of the movable body 81 to configure a rack and pinion mechanism. . The spring 85 is housed in the hollow part 81b of the movable body 81. The spring 85 is a helical compression spring and is sandwiched between an end part of the hollow part 81b and the plate-shaped projection 82c.

The second holding part 83 is a solid body in which a guide hole 83a is formed through which the moving body 81 passes, and the second holding part 83 is installed in the moving panel 24. On the upper surface of the second holding part 83 is formed a slightly curved surface 831.

(Operation of blocking devices 8)

In Fig. 17, the movable bodies 81 are in a state in which they are held in the first clamping part 82 and the second clamping part 83 and, when the motors 84 cause the pinion gears 84a to rotate counterclockwise in that state, the rotating movement of the pinion gears 84a is converted into a linear movement by means of the zippers 81a, and the moving bodies 81 slide towards the walls 822. When the moving bodies 81 move a predetermined distance, the moving bodies 81 they exit the guide holes 83a in the second holding parts 83. The second holding bodies 83 that do not hold the moving bodies 8 are allowed to move in the vertical direction, so that the second holding bodies 83 do not prevent the descent of the mobile body 24.

The distance between the lateral surfaces of the hollow parts 81b and the plate-shaped projections 82c is shortened due to the movement of the movable bodies 81, so that the springs 85 are compressed and store repulsive force. While electric power is supplied to the motors 84, the motors 84 rotate against the increasing repulsive force of the springs 85, but when electric power is no longer supplied to the motors 84, the motors 84 rotate in reverse due to the repulsive force of the springs 85, and the moving bodies 81 return to their previous positions.

When the movable panel 24 is not descending and the second clamping parts 83 are not moving, the movable bodies 81 enter the guide holes 83a in the second clamping parts 83. On the other hand, when the movable panel 24 is descending and the second holding parts 83 are moving, the second holding parts 83 wait in the path they return. Then, when the movable panel 24 ascends and closes the suction opening 20a, the second clamping parts 83 touch their curved surfaces 831 on the inclined surfaces 811 of the movable bodies 81, push the movable bodies 81 aside and return.

The moving bodies 81 pushed by the second holding parts 83 move horizontally and compress the springs 85. When the second holding parts 83 return completely, the moving bodies 81 penetrate the guide holes 83a in the second holding parts 83. As a result, the movable bodies 81 prevent the descent of the movable panel 24.

(Opening and closing operation of the mobile panel 24)

Figure 18 is a perspective view of a state in which the mobile panel has opened the suction opening. In Figure 18, when the locking devices 8 release their locking and the lifting and lowering devices 7 let the cables 71 out in a state in which the hinge coupling devices 6 couple the mobile panel 24, the mobile panel 24 descends due to its own weight. However, because the end portion of the movable panel 24 is coupled to the hinge coupling devices 6, the movable panel 24 rotates on its end portion in the direction in which the movable panel 24 opens the suction opening 20 a.

On the other hand, when the lifting and lowering devices 7 pick up the cables 71, the mobile panel 24 ascends, but because the end part of the mobile panel 24 is coupled to the hinge coupling devices 6, the mobile panel 24 rotates on its end portion in the direction in which the movable panel 24 closes the suction opening 20a. When the mobile panel 24 completely closes the suction opening 20a, the blocking devices 8 block the mobile panel 24.

(Operation of raising and lowering the mobile panel 24)

Figure 19 is a perspective view of a state in which the mobile panel is descending. In Figure 19, when the hinge coupling devices 6 release their coupling with the end portions of the mobile panel 24 and the locking devices 8 release their locking of the mobile panel 24 and the lifting and lowering devices 7 let the cables out 71, the mobile panel 24 descends due to its own weight. On the other hand, when the lifting and lowering devices 7 collect the cables 71, the mobile panel 24 rises and when the mobile panel 24 completely closes the suction opening 20a, the locking devices 8 block the mobile panel 24.

The mobile panel 24 is suspended from two cables and descends along with the dust box 109, so that the total weight of the mobile panel 24 including the dust box 109 increases, and the placement of the mobile panel 24 does not become unstable due to the air flow from the interior space. However, when the dust accumulates disproportionately inside the dust box 109, the center of gravity of the movable panel 24 changes. For this reason, in the present embodiment, the dimension and position of the dust box 109 on the mobile panel 24 are configured so that the placement of the mobile panel 24 when the dust fills the interior of the dust box 109 and The placement of the movable panel 24 when the interior of the dust box 109 is empty are substantially the same placement.

Specifically, the total length in the longitudinal direction of the dust box 109 is set equal to or greater than 1/2 of the total length in the longitudinal direction of the movable panel 24. In addition, the total length in the width direction of the Dust box 109 is set equal to or greater than 1/3 of the total length in the width direction of the mobile panel 24. Additionally, the dust box 109 is located toward the axis of rotation when the mobile panel rotates 24.

<Mechanism for removing dust box 109>

When the dust that has been collected inside the dust box 109 has to be discarded, the dust box 109 is removed from the mobile panel 24 of the indoor air conditioning unit 2. However, because the box for dust 109 it is attached to the mobile panel 24, which the user cannot reach by hand, the user lowers the mobile panel 24 to the maintenance position, which the user can reach by hand, and then disassembles the box for the dust 109 of the mobile panel 24. The details of the mechanism by which the mobile panel 24 is lowered have been described in the section on the operation of raising and lowering the mobile panel 24, so that the description thereof and the description thereof will be omitted and The procedure for removing the dust box 109 from the movable panel 24 will now be described.

Figure 20 is a perspective view of the dust box and the movable panel after the dust box has been removed from it. In Figure 20, a housing part 24a is formed in the mobile panel 24 in which the dust box 109 is housed. When Figure 20 is seen from the front, a first ejection part 110 of a mechanism Extraction is located at the left end part, and a second ejection part 210 of the extraction mechanism is located at the right end part.

Figure 21 is a perspective view of the extraction mechanism, and Figure 22 is an exploded perspective view of the extraction mechanism. In Fig. 21, the extraction mechanism comprises the first eject part 110, the second eject part 210 and a transmission part 310. The first eject part 110 has a button 151 and, when the user presses this button 151, the first ejection part 110 ejects the proximity of one end of the dust box 109 above the movable panel 24 and, at the same time, the second ejection part 210 expels the proximity of the other end of the dust box 109 above the mobile panel 24.

As shown in Figure 22, the first ejection part 110, the second ejection part 210 and the transmission part 310 are composed of a plurality of parts. In Figure 22, the first ejection part 110

includes a first cam element 111, a first positioning element 121, a first cover 131, a first leaf spring 141, the button 151 and a helical spring 161. The second ejection part 210 includes a second cam element 211, a second positioning element 221, a second cover 231 and a second leaf spring 241. The transmission part 310 includes a transmission element 311, an adjustment screw 313 and a connection element 314.

(Associated elements of the first part of expulsion 110)

(First cam element 111)

The first cam element 111 is a piece of resin in which a hook 112, a receiving cam 113, a thrust cam 114, a connecting part 115 and a shaft 116, and the first element of the carriage are integrally molded. Cam 111 has three functions. The first function of the first cam member 111 is the function of holding the dust box 109 in the housing part 24a, so that when the dust box 109 is mounted in the housing part 24a, the hook 112 fits on a recessed portion 109e (see Figure 20) disposed at both ends of the dust box 109 and prevents the dust box 109 from protruding upwards. In other words, the hook 112 serves as a fastener that holds the dust box 109.

The second function of the first cam element 111 is the function of expelling the dust box 109 from the housing part 24a, so that when the receiving cam 113 is pushed by the button 151, the pushing cam 114 rotates around from the shaft 116 and ejects the end part of the dust box 109 above the housing part 24a. In other words, the thrust cam 114 serves as an ejection element that ejects the dust box 109.

The third function of the first cam element 111 is the function of pulling the transmission element 311; one end of the transmission element 311 is trapped in a hole 115a disposed in the connection element 115 and, when the connection element 115 rotates around the shaft 116, the transmission element 311 is pulled.

(First positioning element 121)

The first positioning element 121 is a resin piece in which a housing 122, a button housing 123 and a connecting plate 124 are integrally molded, and the first positioning element 121 has three functions. The first function of the first positioning element 121 is the function of holding the first cam element 111, and the housing 122 rotatably supports the shaft 116 of the first cam element 111 through a bearing 125. However, the housing 122 surrounds the thrust cam 114 of the first cam member 111, so that the first cam member 111 cannot rotate counterclockwise.

The second function of the first positioning element 121 is the function of holding the button 151 and the helical spring 161. On the wall surface of the button housing 123, a guide groove 123a is provided that supports the button 151 so that the button 151 can move reciprocating therein, and in the center of the button housing 123 a support rod 123b is provided that supports the spiral spring 161. The spiral spring 161 is sandwiched between and compressed by the button housing 123 and button 151, so that repulsive force is generated in button 151.

The third function of the first positioning element 121 is the function of fixing the first ejection part 110 to the mobile panel 24, and the first positioning element 121 is fixed by means of a screw to the housing part 24a through a connection hole 124a on the junction plate 124.

(First cover 131)

The first cover 131 is a piece of resin in which a partition wall 132 and a spring housing 133 are molded in solidarity, and the first cover 131 has two functions. The first function of the first cover 131 is the function of dividing the end part of the housing part 24a in which the dust box 109 and the mobile panel 24 are housed, so that when the dust box 109 removed from the housing part 24a, the partition wall 132 blocks the end part of the housing part 24a and prevents the inside of the movable panel 24 from being visible from the outside. The second function of the first cover 131 is the function of holding the first leaf spring 141, and the spring housing 133 in which the first leaf spring 141 is housed is essentially arranged in the center of the partition wall 132.

(First spring of crossbow 141)

The first spring of spring 141 is a part formed from a stainless steel plate for a spring and has the function of pushing in the longitudinal direction and fixing the dust box 109. Due to the first spring of spring 141, it is avoided the rattle of the dust box 109 in the housing part 24a.

(Button 151)

The button 151 is a piece of resin in which an operation part 152 and a guide part 153 are molded in solidarity, and the button 151 has the function of making the first cam member 111 rotate. Characters indicating the user that the button is a push button are displayed on the surface of the operation part 152. The guide part 153 fits together with the button housing 123 of the first positioning element 121, so that a reciprocating linear movement is allowed. When the operation part 152 is pressed, the guide part 153 moves in a straight line, pushes the receiving cam 113 of the first cam element 111, and causes the first cam element 111 to rotate around the shaft 116.

At a predetermined site of the guide portion 153, a claw 153a is snapped in place that snap-engages with the guide groove 123a in the button housing 123. The claw 153a is allowed to move along the longitudinal direction of the groove. of guide 123a.

(Helical spring 161)

The helical spring 161 is a spirally formed part from a stainless steel cable for a spring and has the function of making the force in the direction opposite to the thrust direction act on the button 151. The helical spring 161 is it compresses by means of the button housing 123 and the guide portion 153 of the button 151 after being inserted into the support rod 123b of the button housing 123, so that repulsive force is generated in the button 151.

(Associated elements of the second part of expulsion 210)

(Second cam element 211)

The second cam member 211 is a resin piece in which a hook 212, a thrust cam 214, a connecting part 215 and a shaft 216 are integrally molded, and the second cam member 211 has two functions. The first function of the second cam element 211 is the function of holding the dust box 109 in the housing part 24a, so that when the dust box 109 is mounted in the housing part 24a, the hook 212 fits in the recessed portion 109e (see Figure 20) arranged at both ends of the dust box 109 and prevents the dust box 109 from protruding upwards. In other words, the hook 212 serves as a fastener that holds the dust box 109.

The second function of the second cam element 211 is the function of ejecting the dust box 109 from the housing part 24a, so that when the connecting part 215 is pulled by the transmission element 311, the thrust cam 214 rotates around the tree 216 and ejects the end part of the dust box 109 out of the housing part 24a. In other words, the thrust cam 214 serves as an ejection element that ejects the dust box 109.

The connection part 215 is a circular column extending in a direction parallel to the shaft 216, and the center of the shaft 216 and the center of the connection part 215 are at a predetermined distance from each other. When the second cam element 211 rotates, the connecting part 215 draws a circular arc around the tree 216.

(Second positioning element 221)

The second positioning element 221 is a resin piece in which a housing 222 and a connecting plate 224 are molded in solidarity, and the second positioning element 221 has two functions. The first function of the second positioning element 221 is the function of holding the second cam element 211, and the housing 222 rotatably supports the shaft 216 of the second cam element 211 through a bearing 225. However, the housing 222 surrounds the thrust cam 214 of the second cam element 211, so that the second cam element 211 cannot rotate in a clockwise direction.

The second function of the second positioning element 221 is the function of fixing the second ejection part 210 to the housing part 24a, and the second positioning element 221 is fixed by means of a screw to the housing part 24a through a hole junction 224a on junction plate 224.

(Second deck 231)

The second cover 231 is a piece of resin in which a partition wall 232 and a spring housing 233 are molded in solidarity, and the second cover 231 has two functions. The first function of the second cover 231 is the function of dividing the end part of the housing part 24a in which the dust box 109 and the mobile panel 24 are housed, so that when the dust box 109 removed from the housing part 24a, the partition wall 232 blocks the end part of the housing part 24a and prevents the inside of the movable panel 24 from being visible from the outside. The second function of the second cover 231 is the function of holding the second leaf spring 241, and the spring housing 233 in which the second leaf spring 241 is housed is essentially arranged in the center of the dividing wall 232.

(Second leaf spring 241)

The second leaf spring 241 is a part formed from a stainless steel plate for a spring and has the function of pushing and fixing the dust box 109 in the longitudinal direction. Due to the second leaf spring 241, the rattling of the dust box 109 in the housing part 24a is avoided.

(Associated elements of transmission part 310)

The transmission part 310 interconnects the first cam element 111 and the second cam element 211 so that the displacement of the first cam element 111 of the first ejection part 110 is transmitted to the second cam element 211 of the second part of ejection 210. The transmission part 310 comprises the transmission element 311 and adjustment means 312, and the adjustment means 312 include the adjustment screw 313 and the connection element 314.

(Transmission element 311)

The transmission element 311 is a part made from a stainless steel cable, an end part 311a being coupled to the first cam member 111 of the first ejection part 110 and another end part 311b being indirectly coupled to the second element of cam 211 of the second ejection part 210. The end part 311a is bent so that it is caught in the hole 115a in the connection part 115. The end part 311b is threaded in order to allow the screw to be screwed adjusting screw 313 in it.

The distance between the first cam element 111 and the second cam element 211 varies with each product, so that the operator bolts the adjusting screw 313 on the end part 311b, finely adjusts the distance from the end part 311a to the adjustment screw 313, and the adjustment screw 313 fits into the connecting element 314 after completing the distance adjustment.

(Adjustment screw 313)

The adjusting screw 313 is a piece made of brass and comprises a hexagonal column-shaped screw body 313a in the center of which a screw hole 313b is disposed that is threaded along the axial direction. The end portion 311b of the transmission element 311 is screwed into this screw hole 313b.

(Connection element 314)

The connecting element 314 is a piece of resin in which a clamping part 315 and a connecting part 316 are molded in solidarity, and the connecting element 314 has the function of coupling the second cam element 211 and the transmission element 311. The clamping portion 315 is arranged with a recessed portion that touches the plurality of outer surfaces of the screw body 313a so that the clamping portion 315 can hold the adjusting screw 313. In the present embodiment, the shape of the recessed portion is formed such that the recessed portion touches four of the outer surfaces of the adjustment screw 313 in order to prevent rotation of the adjustment screw 313. However, the shape of the recessed portion is not limited to this; for example, even when the recessed part is formed in the form of a hub, it can prevent rotation of the adjustment screw 313.

The connecting part 316 protrudes by way of a cantilever from a predetermined end surface of the clamping part 315, and circular claws are disposed on the distal end portion thereof. The claws snap into engagement holes arranged in the connection part 215 of the second cam element 211. When the transmission element 311 is pulled by the first cam element 111, the connection element 314 pulls the connection part 215 of the second cam element 211. At this time, the second cam element 211 rotates around the shaft 216, and the thrust cam 214 pushes the end portion of the dust box

109.

When the second cam element 211 rotates, the connecting part 215 moves while drawing a circular arc around the shaft 216, so that the coupling holes and the claws slide together. The coupling holes and the claws have the relationship of tree holes and trees that fit together, so that they do not separate.

(Disassembly operation and operation of joining the dust box 109)

In Fig. 19, the user presses button 151 to remove the dust box 109 from the housing part 24a. When the button 151 is pressed, the receiving cam 113 is pushed, the first cam member 111 rotates, and the pushing cam 114 pushes one end of the dust box 109.

When the first cam element 111 rotates, the connecting part 115 pulls the transmission element 311, so that the second cam element 211 is pulled and rotated, and the thrust cam 214 pushes the other end of the case for the powder 109.

At the same time that both ends of the dust box 109 are pushed, the hook 112 of the first cam element 111 and the hook 212 of the second cam element 211 move away from the recessed portions 109e (see Figure 20) of the dust box 109, and dust box 109 protrudes out of the housing part 24a. In other words, the button 151 serves as an operating element that makes the hooks 112 and 212 and the thrust cams 114 and 214 work. The user can easily recognize that the dust box 109 is outside the mobile panel 24.

On the other hand, when the dust box 109 is to be attached to the housing part 24a, the user pushes the dust box 109 into the housing part 24a, whereby the hook 112 of the first cam member 111 and the hook 212 of the second cam member 211 fit into the recessed parts 109e (see Figure 20) of the dust box 109 and hold the dust box 109 in the housing part 24a.

As described above, the dust box 109 can be removed from the mobile panel 24 simply by pressing the button 151, and the dust box 109 is locked on the mobile panel 24 simply by pushing the dust box 109 into the part housing 24a of the mobile panel 24, so that the dust box 109 is easy for the user to handle.

<Blowing out module 50 components>

Figure 23 is an enlarged cross-sectional view of the blow-out opening module, and Figure 24 is a perspective view of the blow-out opening module. In Figure 23 and Figure 24, the outward blow opening module 50 is a module in which a first part of outward flow flow formation wall 51, the first blow direction adjustment blade 52, a second blow direction adjustment blade 53, long blade support elements 54, rectangular blade support elements 55 and a thermally insulating element 56 are modularized.

(First part of outward flow flow formation wall 51)

The first part of the outward flow flow formation wall 51 forms the first outward flow flow path 51a which is located at the end end portion of the air flow path and leads to the blow opening towards out 20b. The first part of the outward flow flow formation wall 51 has an adhesion surface of the resinous sealing element 511 in its part oriented towards the terminal end of a second part of the flow flow formation forming wall towards outside 41 (see Figure 3) forming the second outward flow flow path 41a, and a sealing element 59 is adhered thereto. The width dimension of the adhesion surface of sealing element 511 is set equal to or greater than 3 mm.

The first part of the outward flow flow formation wall 51 also has an external wall 512 and an internal wall 513, which extend in the direction of the outward blow opening 20b from the adhesion surface of the sealed 511, and a flange 514, which extends in the horizontal direction from the terminal end of the outer wall 512. The outer wall 512 and the inner wall 513 are at a predetermined distance from each other, and a layer of air is thermally formed Insulator 51b (see Figure 23) between the outer wall 512 and the inner wall 513. The flange 514 is located on the opposite side of the suction opening 20a on the other side of the blown out opening 20b and also serves as a plate of reinforcement of the decorative panel 21.

(First blow direction adjustment blade 52)

The first blow direction adjustment blade 52 is located in the vicinity of the outward blow opening 20b and has two long blades 52a and 52b extending parallel to the longitudinal direction of the outward blow opening 20b. The long blades 52a and 52b are coupled to the first part of the outward flow flow formation wall 51 by the long blade support elements 54, and the support parts 54a and 54b of the blade support elements long 54 rotate about an axis parallel to the longitudinal direction of the blown out opening 20b and adjust the angle of inclination of the long blades 52a and 52b. However, when the indoor air conditioning unit 2 stops, the long blades 52a and 52b close the blow opening out 20b.

(Second blow direction adjustment blade 53)

The second blow direction adjustment blade 53 is positioned upstream of the first blow direction adjustment blade 52 and has a plurality of rectangular blades 53a and a drive shaft 53b. The

Rectangular blades 53a are coupled to the first part of the outward blow flow path formation wall 51 by the rectangular blade support elements 55 and are arranged parallel to the longitudinal direction of the outward blow opening 20b at predetermined intervals . In addition, the plurality of rectangular blades 53a are interconnected by the drive shaft 53b and swing on an orthogonal axis to the longitudinal direction of the blown out opening 20b as a result of the reciprocating movement of the drive shaft 53b in the longitudinal direction.

(First part of blowing direction adjustment blade drive 57)

The first blow direction adjustment blade drive part 57 is positioned on an extension line of the first blow direction adjustment blade 52 outside the first part of the outward flow flow formation wall 51 The first blowing direction adjustment blade drive part 57 has inside a stepper motor (not shown) and a transmission gear (not shown) that transmits the rotation of that stepper motor to the support elements Long shovel 54.

(Second part of the blowing direction adjustment blade drive 58)

The second blow direction adjustment blade drive part 58 is placed in an extension line of the drive shaft 53b of the second blow direction adjustment blade 53 out of the first flow path forming wall part blow out 51. The second blow direction adjustment blade drive part 58 has a stepper motor (not shown) and a transmission gear (not shown) that transmits the rotation of that stepper motor to drive shaft 53b.

<Features>

(one)

In the indoor air conditioning unit 2, the dust box 109 which collects the dust removed when cleaning the filter is removably located on the mobile panel 24. The dust box 109 can be lowered together with the movable panel 24, and it is possible to clean the dust box 109. In addition, the brush 108 that removes the dust in the filters 9 is attached to the dust box 109, and the brush 108 can also be cleaned when cleaning the dust box 109.

In addition, the intermediate transmission gear 108d, the drive gear 108e, the brush drive motor 108f, the filters 9 and the roller 102 do not descend, so that the load acting on the lifting and lowering devices 7 is relieved , and the job of disassembling the dust box 109 in the maintenance position is also easy.

(2)

In addition, because the dust box 109 is located on the mobile panel 24, the dust box 109 prevents deformation of the mobile panel 24. In addition, the weight of the mobile panel 24 increases due to the dust box 109 , it is difficult for the mobile panel 24 to swing, and the resting position of the mobile panel 24 is stable.

(3)

In the indoor air conditioning unit 2, the dust box 109 can be removed from the mobile panel 24 simply by pressing the button 151. At that time, the dust box 109 comes out a little in the extraction direction, so that the user can reliably recognize that the dust box 109 is outside the mobile panel 24.

In addition, when the dust box 109 is located in the predetermined position, the hooks 112 and 212 grab the dust box 109, so that a situation in which the movable panel rises without the dust box is avoided 109 is subject to it. When button 151 is pressed, the dust box is ejected while the hooks 112 and 212 are moved in a direction away from the dust box, so that removal of the dust box is carried out. One touch dust.

(4)

In the indoor air conditioning unit 2, the placement of the mobile panel 24 in which it descends with dust collected inside the dust box 109 and the placement of the mobile panel 24 in which it ascends with the interior of the Dust box 109 being empty are substantially the same placement, so that a feeling of stability in the operation of raising and lowering the movable panel 24 can be transmitted to the user.

(5)

In the indoor air conditioning unit 2, the surface 109d of the dust box 109 oriented towards the sucked air is an inclined surface, so that the air resistance of the dust box 109 with respect to the sucked air it decreases, and the noise caused by the wind when the sucked air passes through the dust box 109 decreases.

(6)

In the indoor air conditioning unit 2, the rear housing portion 106 of the filters 9 is located between the suction flow path 31a and the second outward flow flow path 41a. As a result, it is not necessary to make the shape of the body larger or to make the suction opening 20a smaller in order to guarantee the rear housing part 106.

(7)

In the indoor air conditioning unit 2, the recessed portion 32 into which the end portions of the filters 9 fit inside is arranged in a part of the suction flow path forming wall 31, and the edge portions 9b of the filters 9 fit into this recessed part 32, so that the edge portions 9b of the filters 9 are not exposed to the suction flow path 31a. As a result, the air can pass through the interior of the suction flow path 31a without being obstructed by the edge portions 9b of the filters 9. In addition, the recessed portion 32 serves as a guide when the filters 9 return to the part of front housing 105 from the rear housing part 106, so that the filters 9 can return reliably.

(8)

In the indoor air conditioning unit 2, the lifting and lowering devices 7 cause the mobile panel 24 to move to an open position at the time of operation and cause the mobile panel 24 to move to a closed position in the moment of shutdown, so that at the time of shutdown, the suction opening 20a is completely closed, and the interior of the indoor air conditioning unit 2 is not exposed through the suction opening 20a.

(9)

In the indoor air conditioning unit 2, the lifting and lowering devices 7 hoist the mobile panel 24 by two points and cause the mobile panel 24 to move and, when the mobile panel 24 moves between the closed position and the open position, the end portions of the movable panel 24 are supported. As a result, a situation in which the movable panel 24 tilts unstably due to the vibration of the roof or the wind pressure of the sucked air is avoided.

<Modification>

A modification of the embodiment described above will be described below with reference to the drawings. The same reference numbers will be given to shared parts in common with those in the embodiment described above, and the description of those parts will be omitted. Figure 25 is a perspective view of a movable panel of an indoor air conditioning unit corresponding to the modification, and Figure 26 is an enlarged view of part C in Figure 25.

(530 hinges)

In Fig. 25, a mobile panel 524 is rotatably supported on the decorative panel 21 by hinges

530. As shown in Figure 26, each of the hinges 530 has a horizontal rod part 531 extending in the horizontal direction, a lever 532 extending vertically from the horizontal rod part 531 and hooks 533 which they are folded like a hook from end portions of the lever 532, and the hinge 530 is at rest in a state in which the horizontal rod part 531 is raised.

Figure 27 is a side view of the hinge. In Fig. 27, the hinge 530 also has a rotating shaft portion 534 that serves as the center of rotation of the mobile panel 524. A spring force acts on the hinge 530 so that the hinge 530 falls in the direction D due to a spring inside the mobile panel 524.

(Hinge coupling mechanism 760)

Figure 28 is a plan view of the hinge and a hinge coupling mechanism when the movable panel is closing the suction opening, Figure 29 is a plan view of the hinge and the hinge coupling mechanism when the panel mobile opens the suction opening, and Figure 30 is a plan view of the hinge and hinge coupling mechanism when the mobile panel is away from the suction opening.

In Figure 28, a hinge coupling mechanism 760 includes hinge receivers 761 and 762, a sliding element 764, a motor 765, a hinge detection lever 766 and a hinge detection switch 767. Hinge receivers 761 and 762 have 7 rotating shafts 61a and 762a and receiving parts 761b and 762b that receive the horizontal rod part 531 of the hinge 530. The receiving parts 761b and 762b can rotate on the rotating shafts 761a and 762b.

The sliding element 764 has positioning projections 764a and 764b, thrust parts 764c and 764d, a rack 764e, and a manual operating part 764f. The positioning projection 764a touches the hinge receiver 761 and the positioning projection 764b touches the hinge receiver 762 to avoid tilting the hinge receivers 761 and 762. The pushing parts 764c and 764d push the hinge receivers 761 and 762 to ensure that the receiving parts 761b and 762b do not receive the horizontal rod part 531 of the hinge 530 when the sliding element 764 moves in the E direction. The rack 764e engages with a pinion gear 765a of the motor 765 and converts the rotation of the pinion gear 765a into horizontal movement of the slide element 764.

A cam 782 of a panel locking mechanism 780 is integrally molded into an end portion of the sliding element 764. The cam 782 has a cam surface 782a to cause a panel locking lever 781 to rotate. The cam surface 782a includes an operating cam surface, which causes the panel lock lever 781 to rotate when the cam 782 moves along with the sliding element 764, and a resting cam surface, which causes the Panel lock lever 781 is at rest in a rotated position. That is, when the sliding element 764 moves an amount corresponding to the extension of the operating cam surface, the panel locking lever 781 rotates, but the hinge receiver 761 and the sliding element 764 do not touch, so that the hinge receiver 761 does not rotate. At this time, the locked state of the mobile panel 524 is released, but the coupled state between the hinge 530 and the mobile panel 524 is not released. However, when the sliding element 764 exceeds the amount corresponding to the extension of the operating cam surface and moves up to an amount corresponding to the extension of the resting cam surface, the hinge receiver 761 and the element of Sliding 764 are touched, so that the hinge receiver 761 rotates. At this time, the coupled state between the hinge 530 and the mobile panel 524 is also released in a state in which the locked state of the mobile panel 524 is released.

The manual operating part 764f is disposed at an end part of the sliding element 764 and is used when manually making the sliding element 764 move. The manual operating part 764f is used when the engine 765 fails and the user wants to release the locked state of the mobile panel 524 or wants to release the coupled state between the hinge 530 and the mobile panel 524.

The hinge detection lever 766 has a rotating shaft part 766a, a hinge detection part 766b and a switch operating part 766c. The hinge detection part 766b and the switch operating part 766c are located in mutually opposite positions on each side of the rotating shaft part 766a and, when the hinge detection part 766b touches the hinge 530 and is pushed, the switch operating part 766c rotates around the rotating shaft part 766a and pushes the hinge detection switch

767. At this time, hinge detection switch 767 switches to ON.

In Figure 29, when the mobile panel 524 descends in order to open the suction opening 20a, the hinge 530 moves in the direction F due to a spring force, so that both ends of the horizontal rod part 531 of hinge 530 are held in receiving parts 761b and 762b of hinge receivers 761 and 762. At this time, hinge detection lever 766 does not touch hinge 530, so that switch operating part 766c rotates in the direction away from the hinge detection switch 767, and the hinge detection switch 767 switches to OFF.

In Fig. 30, when the sliding element 764 moves in the direction E, the pushing parts 764c and 764d push the hinge receivers 761 and 762, so that the receiving parts 761b and 762b leave the downward path of the hinge 530. As a result, none of the ends of the horizontal rod portion 531 of the hinge 530 is held in the receiving portions 761b and 762b, so that the movable panel 524 descends without turning.

(Opening and closing operation of mobile panel 524)

Figure 31 (a) is a cross-sectional view of the lower body, Figure 31 (b) is a partial cross-sectional view of the lower body immediately before the movable panel opens the suction opening, and Figure 31 ( c) is a partial cross-sectional view of the lower body immediately after the mobile panel has opened the suction opening. In Figure 28 and Figure 31 (a), in the space below the horizontal rod part 531 of the hinge 530, the hinge receivers 761 and 762, which receive the horizontal rod part 531, and projecting portions 763 that touch the hooks 533 protrude from the decorative panel 21. When the mobile panel 524 is closing the suction opening 20a, the hooks 533 touch the projecting portions 763, so that the horizontal rod part 531 is at rest in a state in which that has turned clockwise around

of the rotating shaft part 534. At this time, the horizontal rod part 531 and the hinge receivers 761 and 762 are not yet touched.

In Figure 29 and Figure 31 (b), when the mobile panel 524 descends, the horizontal rod portion 531 grabs the hinge receivers 761 and 762 and stops. When the mobile panel 524 continues to descend, the horizontal rod portion 531 is limited by the hinge receivers 761 and 762, so that the mobile panel 524 and the hinge 530 attempt to depart. However, because the mobile panel 524 and the hinge 530 are coupled to each other by the rotating shaft part 534, as shown in Figure 31 (c), the mobile panel 524 rotates around the rotating shaft portion 534.

On the other hand, the operation when the mobile panel 524 closes the suction opening 20a is the opposite of the operation when the mobile panel 524 opens the suction opening 20a and, making the mobile panel 524 rise, the operation goes from the state from figure 31 (a) through the state of figure 31 (b) to the state of figure 31 (c).

(Operation of raising and lowering the mobile panel 524)

Figure 32 (a) is a cross-sectional view of the lower body, Figure 32 (b) is a partial cross-sectional view of the lower body immediately after the movable panel has begun to descend, and Figure 32 (c ) is a partial cross-sectional view of the lower body when the movable panel has descended. In Figure 28 and Figure 32 (a), in the space below the horizontal rod part 531 of the hinge 530, the hinge receivers 761 and 762, which receive the horizontal rod part 531, and the protruding parts 763 touching the hooks 533 protrude from the decorative panel 21. When the mobile panel 524 is closing the suction opening 20a, the hooks 533 touch the projecting portions 763, so that the horizontal rod part 531 is at rest in a state in the one that has rotated clockwise around the rotating shaft part 534. At this time, the horizontal rod part 531 and the hinge receivers 761 and 762 are not yet touched.

In Figure 30 and Figures 32 (b) and 32 (c), the sliding element 764 moves in the direction E, and the pushing parts 764c and 764d push the hinge receivers 761 and 762, so that the receiving parts 761b and 762b are out of the downward path of hinge 530 and, when hinge 530 descends, none of the ends of horizontal rod part 531 is held in receiving parts 761b and 762b, and mobile panel 524 It can descend without turning.

On the other hand, the operation when the mobile panel 524 closes the suction opening 20a is the opposite of the operation when the mobile panel 524 opens the suction opening 20a and, making the mobile panel 524 rise, the operation goes from the state from figure 32 (a) through the state of figure 32 (b) to the state of figure 32 (c).

(Panel lock mechanism 780)

In Figure 28, the panel lock mechanism 780 includes the panel lock lever 781, the cam 782, a panel lock ring 783, a lock detection switch 784 and a spring 785. The cam 782 is fixed to an end portion of the sliding element 764 of the hinge coupling mechanism 760 and has the cam surface 782a.

The panel lock lever 781 has a rotating shaft part 781a, a part touching the cam 781b and a panel locking part 781c. The part touching the cam 781b and the panel locking part 781c are located in mutually opposite positions on both sides of the rotating shaft part 781a. The part touching the cam 781b rotates around the rotating shaft part 781a following the cam surface 782a, and the panel locking part 781c rotates around the rotating shaft portion 781a.

The panel lock ring 783 is arranged in the vicinity of the hinge 530 of the movable panel 524, and the panel lock portion 781c of the panel lock lever 781 is inserted therein. The spring 785 applies spring force in the direction in which the panel lock portion 781c is inserted into the panel lock ring 783.

As shown in Figure 28, when the mobile panel 524 is closing the suction opening 20a, the sliding element 764 of the hinge coupling mechanism 760 stops, so that the cam 782 cannot make the part that Touch cam 781b to work. On the other hand, as shown in Figure 30, when the sliding element 764 moves in the direction E, the cam 782 causes the part touching the cam 781b to rotate, so that the panel locking part 781c rotates around the rotating shaft portion 781a and exits the panel lock ring 783.

Figure 33 (a) is a cross-sectional view after the panel locking part has left the panel locking ring, Figure 33 (b) is a cross-sectional view when the panel locking ring pushes the locking part and moving it backward, and figure 33 (c) is a cross-sectional view when the panel locking part has fitted into the panel locking ring. In Figures 33 (a), 33 (b) and 33 (c), when the mobile panel 524 returns from the state of Figure 32 (c) to the state of Figure 32 (a), the upper part of the ring of

panel lock 783 pushes the distal end of the panel lock portion 781c. The distal end of the panel lock portion 781c is inclined, so that the component force acts in the compression direction of the spring 785, and the panel lock portion 781c moves backward while compressing the spring 785. Then, when the panel lock ring 783 returns to its previous position, the panel lock portion 781c is pushed by the spring 785 and inserted into the hole in the panel lock ring 783.

<Procedure to hang the mobile panel 524>

A method of hanging the mobile panel 524 with the cables 71 of the lifting and lowering devices 7 will now be described. Figure 34 is a plan view of the end portion of the mobile panel. In Figure 34, a metallic suspension accessory to which the distal end of the cable 71 of the lifting and lowering device 7 is attached joins in the vicinity of the end portion of the movable panel 524.

(708 metal suspension accessory)

Figure 35 is a front view of the metal suspension accessory coupled to the distal end of the cable of the lifting and lowering device. In Figure 35, the metal suspension fitting 708 has an upper ring 708a and a lower ring 708b. The upper ring 708a and the lower ring 708b are molded in solidarity by processing a metal cable in the form of the Arabic numeral 8. The cable 71 of the lifting and lowering device is connected to the upper ring 708a of the metal suspension fitting 708, and the ring Bottom 708b is coupled to a predetermined element of the mobile panel 524.

(570 metal suspension accessory coupling element)

Figure 36 (a) is a plan view of a metal suspension accessory coupling element to which the metal suspension accessory is attached, and Figure 36 (b) is a cross-sectional view taken along the line XX in figure 36 (a). In Fig. 36 (b), as a reference, a state in which the metallic suspension accessory 708 is coupled is indicated by a dashed line and double dot. In Figures 36 (a) and 36 (b), a metal suspension attachment element 570 includes a housing 571, a sliding lever 572 and a spring 573.

The housing 571 has a flange 571a, and the flange 571a is connected by screws to a predetermined position of the mobile panel 524. The housing 571 also has an opening 571b inside which the lower ring 708b of the metal suspension fitting 708 is inserted, a slot 571c that guides the lower ring 708b into the opening 571b, and a guide portion 571d that serves as a guide when the slide lever 572 moves.

The slide lever 572 is an element that moves in a direction that cuts the groove 571c in the housing 571 and has a rib 572a that the user can grasp with the fingers. The slide lever 572 also has a shoulder 572b that supports the spring 573 on the surface on the opposite side of the rib 572a. The spring 573 is a helical compression spring whose interior is supported on the projection 572b and whose exterior is surrounded by the guide portion 571d of the housing 571 and the sliding lever 572.

The slide lever 572 also has an inner cover 572c that closes the opening 571b in the housing 571 from the inside. Usually, the sliding lever 572 is pushed towards the flange 571a by the spring force of the spring 573, so that the inner cover 572c closes the opening 571b.

Figure 37 (a) is a plan view of the metal suspension accessory coupling element immediately before the metal suspension accessory is coupled thereto, and Figure 37 (b) is a cross-sectional view taken at line length YY in figure 37 (a). In Figure 37 (b), as a reference, a state in which the metallic suspension accessory 708 is inserted is indicated by a dashed line and double dot. In Figures 37 (a) and 37 (b), when the slide lever 572 moves in the direction away from the flange 571a, the inner cover 572c opens the opening 571b in the housing 571, so that it becomes possible to insert the metallic suspension accessory 708 from the opening 751b.

The metallic suspension fixture 708 can enter inside along slot 571c. The length of the groove 571c corresponds to a length in which the lower ring 708b of the metal suspension fitting 708 fits completely, so that the lower ring 708b is completely housed inside the housing 571. When the slide lever 572 is returned to its previous position after the lower ring 708b is housed inside the housing 571, the inner cover 572c fits into the lower ring 708b, so that the lower ring 708b does not leave the housing 571.

(Box lock device for dust 580)

In Figure 34, a dust box lock device 580 is attached to the side of the area where the dust box 109 is mounted. The dust box lock device 580 fixes the dust box the dust 109

so that the dust box 109 does not leave the mobile panel 524.

Figure 38 (a) is a plan view of the dust box locking device, and Figure 38 (b) is a front view of the dust box locking device. In Figures 38 (a) and 38 (b), the dust box lock device 580 includes a lock bar 581, a housing 582 that supports the lock bar 581 and a lock spring 583 which causes the lock bar 581 protrudes from the housing 582.

In the upper part of the locking bar 581 an operating rib 581a is formed that the user can take with the fingers. When the user uses the fingers to move the operating rib 581a in the G direction in Figure 38 (b), the locking bar 581 moves while compressing the locking spring. 583 Then, when the user releases his hand, the lock lever 581 is returned to its previous position by the force of the lock spring 583.

<Modification characteristics>

In the indoor air conditioning unit 2, even when the function of making the mobile panel 524 at rest worsens markedly due to the failure of the lifting and lowering devices 7 or the like, the panel lock lever 781 of the panel lock mechanism 780 fits into the panel lock ring 783 of the mobile panel 524, so that a situation in which the mobile panel 524 descends by itself from the suction opening 20a is avoided. In addition, the panel lock lever 781 can be moved towards the panel lock ring 783 simply by the spring 785, so that even when the motor 765 does not work due to a failure of the electrical system, the mobile panel 524 can be contained so reliable.

Industrial applicability

As described above, according to the present invention, the dust box can be easily separated from the filter cleaning mechanism and lowered, so that the invention is also useful in the field of lifting and lowering devices that lower particular parts of devices installed in high places.

Explanation of reference numbers

2 Indoor air conditioning unit 7 Lifting and lowering device 9 Filter 20 Body 20a Suction opening 20b Blowing out opening 21 Decorative panel (Lower surface panel) 24 Mobile panel (Vertical alternative motion panel) 26 Upper body 28 Lower body 31a Suction flow path 32 Reduced part 41a, 51a Blow out flow paths 102 Roller (Filter drive part) 106 Filter housing part 108 Brush (Cleaning element) 108d Intermediate transmission gear (Part drive of cleaning element) 108e Drive gear (Drive part of cleaning element) 108f Brush drive motor (Drive part of cleaning element) 109 Dust box

109d Surface (Air resistance reduction structure) 112, 212 Hooks (Fasteners, Claws)

10 114, 214 Thrust cams (Thrust elements) 141, 241 Crossbow springs (Clamping elements) 151 Button (Operating element)

311 Transmission Element (Operation Element) Patent document 1: JP-A No. 2007-40689

Claims (14)

1. A ceiling mount indoor air conditioning unit (2) comprising: a body (20) having a suction opening (20a) in its lower surface; a vertical reciprocating motion panel (24) that is arranged to descend to a predetermined position at the time of maintenance; a lifting and lowering mechanism (7) that is arranged to make the alternative movement panel vertical (24) move in an upward direction and in a downward direction; a filter (9) that is arranged to remove the dust included in the air flowing in from the opening of suction (20a); a cleaning element (108) that is arranged to cause the dust adhering to the filter (9) to separate from the filter (9); a cleaning element drive part (108d, 108e, 108f) that is arranged to make the cleaning element (108) work; Y a dust box (109) that is attached to the vertical reciprocating motion panel (24) and is arranged to collect dust separated from the filter (9), characterized because: the vertical reciprocating motion panel (24) is arranged to close the suction opening (20a) in the time to stop operation; the dust box (109) is detachably attached to the vertical alternative movement panel (24); Y The ceiling mount air conditioning unit (2) further comprises: a filter drive part (102) that is arranged to make the filter (9) move when it is cleaned the filter (9);

2.

The indoor air conditioning unit (2) according to claim 1, wherein at the time of maintenance, the dust box (109) descends along with the vertical reciprocating movement panel (24), and the drive part of cleaning element (108d, 108e, 108f) remains in the body (20).

3.

The indoor air conditioning unit (2) according to claim 2, wherein the filter (9) and the filter actuating part (102) also remain in the body (20).

Four.

The indoor air conditioning unit (2) according to any one of claims 1 to 3, wherein the cleaning element (108) is attached to the dust box (109).

5.

The indoor air conditioning unit (2) according to claim 4, wherein the vertical reciprocating motion panel (24) has

a fastener (112, 141, 212, 241) that holds the dust box (109) in a predetermined position (24a), an ejection element (114, 214) that ejects the dust box (109) in an extraction direction from the predetermined position (24a), and an operating element (151,311) that releases the holding of the dust box (109) by the holding element (112, 141, 212, 241) and causes the ejection element (114, 214) to eject the box for the dust (109).

6.

The indoor air conditioning unit (2) according to claim 5, wherein the clamping element (112, 141, 212, 241) includes a claw (112, 212) that grips the dust box (109) when the dust box (109) is located in the predetermined position (24a).

7.

The indoor air conditioning unit (2) according to claim 6, wherein the ejection element (114, 214) causes the claw (112, 212) to move in a direction away from the dust box

(109) when the ejection element (114, 214) ejects the dust box (109). The indoor air conditioning unit (2) according to any one of claims 1 to 3, wherein the placement of the vertical alternative movement panel (24) that rises and falls in a state where there is no dust inside the dust box (109) and the placement of the vertical reciprocating motion panel (24) that rises and falls in a state where the dust fills the inside of the dust box (109) are substantially the 5 same placement. 9. The indoor air conditioning unit (2) according to claim 1, wherein the body (20) also has an upper body (26) and a lower body (28), and 10 on the lower body (28) is included a lower surface panel (21) that forms the contour of the suction opening (20a). 10. The indoor air conditioning unit (2) according to claim 1, wherein the dust box (109) also serves as a reinforcing material for the vertical reciprocating movement panel (24). 11. The indoor air conditioning unit (2) according to claim 1, wherein at the time of operation, in order to allow air to flow in from the suction opening 20 (20a), the vertical reciprocating movement panel (24) rotates together with the dust box (109) around the proximity from its own end and opens the suction opening (20a), and an air resistance reduction structure (109d) is arranged in the dust box (109) which allows the incoming air to advance smoothly in the direction of the filter (9). 25 12. The indoor air conditioning unit (2) according to claim 1, wherein the body (20) also has an outward blow opening (20b), 30 a suction flow path (31a) leading inwards from the suction opening (20a), an outward blow flow path (41a, 51a) leading from the inside to the outward blow opening (20a), and 35 a filter housing part (106) that is positioned between the suction flow path (31a) and the blow out flow path (41a, 51a) and temporarily houses the filter (9) that moves towards the same. 13. The indoor air conditioning unit (2) according to claim 12, wherein the body (20) 40 also has a recessed part (32) that is arranged in a suction flow path formation wall that forms the suction flow path (31a) and into which an end portion of the filter (9) fits. 14. The indoor air conditioning unit (2) according to claim 1, wherein 45 at the time of operation, the up and down mechanism (7) causes the vertical reciprocating movement panel (24) to move to a second predetermined position that is closer to the ceiling than the predetermined position away from the suction opening (20 a), at the time of shutdown, the lifting and lowering mechanism (7) causes the alternative vertical movement panel 50 (24) to move to a third predetermined position in which the vertical alternative movement panel (24) close the suction opening (20a), and at least the vertical reciprocating movement panel (24) that moves to the predetermined position is accompanied by the dust box (109). 55