JP2016035344A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an indoor unit of an air conditioner which has a dust box enabling dust in the dust box to be directly discarded into a dust bin in an easy manner and avoiding the possibility that a hand touches a cleaning brush.SOLUTION: The indoor unit includes: a filter 9 to which dust adheres; a brush 12 which scrapes the dust adhering to the filter 9; a dust box 10; and a shell structure part 31 to which the dust box 10 is fixed. The dust box 10 includes: a box body 10a which includes a bearing rotationally supporting a shaft of the brush 12, the box body 10a in which opening parts are formed on an upper surface and a bottom surface and the brush 12 protrudes upward from the opening part on the upper surface; and a dust cover 11 which covers the opening part 26 on the bottom surface of the box body 10a and stores the scraped dust. The dust box is detachably attached to the shell structure part 31. The dust cover 11 is rotatably connected with the box body 10a through a hinge 18.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an air conditioner indoor unit, and more particularly, to a dust box structure for storing dust removed by a filter.

  The indoor unit of an air conditioner performs air conditioning by passing indoor air sucked by a blower fan through a heat exchanger and exchanging heat between the indoor air and a refrigerant flowing in the heat exchanger. ing. At this time, in order to prevent dust or the like floating in the room from adhering to the heat exchanger, a filter is provided on the air suction side of the heat exchanger. However, if dust adheres to this filter and clogging occurs and the resistance of the air path increases, the air conditioning capability of the air conditioner decreases and the power consumption increases.

  In order to solve such problems, various air conditioners having an automatic filter cleaning function have been proposed. For example, a dust box that is a part that stores dust, a dust cover that serves as a lid is provided on the top of the dust box, and the dust cover and the dust box body that stores dust are connected by a hinge structure. Yes. Further, the dust cover is provided with a cleaning brush for removing dust, and the dust removed by the cleaning brush is stored in a dust box body at the lower part of the dust cover. And after removing a dust box from an air conditioner main body, the dust which stored is discarded by opening a dust cover (for example, refer to patent documents 1).

JP 2008-82690 A (Claim 1, page 3)

  The dust box of the indoor unit of the above air conditioner is the same as the dust box stored in the dust box body with the height.For the dust stored in the upper part of the dust box body, open the dust cover and directly place it in the trash box or trash bag. Throw away. In addition, it is necessary to suck up dust collected in the lower part of the dust box body with a vacuum cleaner or turn over the dust box to shake off the dust. At this time, there is a problem that dust remains in the dust box body or that the user touches the cleaning brush when removing the dust cover, and the user feels hygienic discomfort.

  The present invention has been made to solve the above-described problems, and can easily dispose of dust in the dust box directly, and is equipped with an air conditioner having a dust box in which a hand or the like does not touch the cleaning brush. The purpose is to obtain an indoor unit.

  An indoor unit of an air conditioner according to the present invention includes a filter for adhering dust, a brush for scraping dust adhering to the filter, and a bearing for rotating and supporting the shaft of the brush, and openings are formed on the upper surface and the bottom surface. A dust box having a dust cover that covers the opening of the bottom surface of the box body, the brush body protruding upward from the opening portion of the upper surface of the box body, and stores the scraped dust; and an outer structure portion that fixes the dust box; The dust box is detachably attached to the outer structure portion, and the dust cover is rotatably connected to the box body via a hinge.

  According to the present invention, the dust cover of the dust box is rotated through the hinge to expose the opening on the bottom surface of the box body, so that the dust in the dust box can be easily discarded directly, and the hand or the like. The possibility of touching the brush can be eliminated.

It is a disassembled perspective view of the whole indoor unit in embodiment of this invention. It is sectional drawing of the whole indoor unit in embodiment of this invention. It is a perspective view of the filter automatic cleaning mechanism in an embodiment of the invention. It is sectional drawing of the filter automatic cleaning mechanism in embodiment of this invention. It is an expanded sectional view of the dust box part in an embodiment of the invention. It is the front perspective view and back perspective view of a dust box in an embodiment of the invention. It is an enlarged view of the shaft part of FIG. It is the perspective view which decomposed | disassembled some filter automatic cleaning mechanisms in embodiment of this invention. It is the perspective view which decomposed | disassembled some filter automatic cleaning mechanisms in embodiment of this invention. It is a perspective view of the exploded dust box in an embodiment of the invention. It is a back perspective view of the exploded dust box in an embodiment of the invention. It is the front perspective view and back perspective view of a dust box in an embodiment of the invention. It is sectional drawing of the dust box at the time of dust cover rotation in embodiment of this invention.

Embodiment FIG. 1 to FIG. 13 are diagrams showing an embodiment of the present invention.
In the refrigeration cycle in the present embodiment, high-pressure refrigerant compressed by the compressor is evaporated from the outdoor unit of the air conditioner including the compressor and the condenser through the refrigerant pipe and the expansion valve. It is configured by exchanging heat between the refrigerant flowing in the evaporator (heat exchanger) and flowing through the evaporator and the room air.

  FIG. 1 is an exploded perspective view of the whole indoor unit in the embodiment of the present invention. As shown in FIG. 1, the indoor unit of an air conditioner has a base 7, a blower fan 6, a heat exchanger 5, a drain pan assembly 4, an automatic filter cleaning mechanism 3, an electrical product 2, and a housing 1. Yes.

  The base 7 forms a box shape and is provided on the back side of the indoor unit of the air conditioner. The base 7 includes a blower fan 6 that blows indoor air into the indoor unit, a heat exchanger 5 that exchanges heat between the indoor air blown into the indoor unit and the refrigerant, a drain pan assembly 4, and an electrical component 2. The housing 1 which is a design part and the filter automatic cleaning mechanism 3 which will be described later are attached.

  FIG. 2 is a sectional view of the entire indoor unit in the embodiment of the present invention. As shown in FIG. 2, the automatic filter cleaning mechanism 3 is provided in an upper part of the indoor unit that is a room air inlet. The up / down air direction adjusting plate 8 is provided below the indoor unit below the blower fan 6. The heat exchanger 5 is provided between the filter automatic cleaning mechanism 3 and the blower fan 6, and the blower fan 6 is provided between the heat exchanger 5 and the vertical air direction adjusting plate 8. The drain pan assembly 4 is provided below the heat exchanger 5 in order to receive drain water generated when moisture contained in the indoor air is cooled and condensed by the heat exchanger 5.

  Next, the operation of the indoor unit will be described with reference to FIG. The blower fan 6 sucks room air from the upper surface of the indoor unit. The sucked air passes through the filter 9 portion of the automatic filter cleaning mechanism 3 and is heat-exchanged by the heat exchanger 5 to be cooled or warmed. The blower fan 6 blows the cool air or warm air to the up / down air direction adjusting plate 8 provided below, and the up / down air direction adjusting plate 8 adjusts the air direction of the blown air. Here, when the air sucked from the upper surface of the indoor unit passes through the filter 9 portion of the automatic filter cleaning mechanism 3, the filter 9 collects dust in the room air. A method for collecting the dust collected by the filter 9 and attached to the filter 9 will be described later.

  FIG. 3 is a perspective view of the automatic filter cleaning mechanism 3 according to the embodiment of the present invention. As shown in FIG. 3, the automatic filter cleaning mechanism 3 mainly includes a filter 9 and a dust box 10 including a box body 10 a and a dust cover 11. The dust box 10 is attached to the left and right of the front surface of the automatic filter cleaning mechanism 3.

  FIG. 4 is a cross-sectional view of the automatic filter cleaning mechanism 3 in the embodiment of the present invention. As shown in FIG. 4, the automatic filter cleaning mechanism 3 is provided with a shaft 15 inside the filter 9 and above the dust box 10. On the surface of the shaft 15, gears 16 are provided radially from the center of the shaft 15. The operations of the shaft 15 and the gear 16 will be described later.

  FIG. 5 is an enlarged cross-sectional view of the dust box 10 portion according to the embodiment of the present invention. As shown in FIG. 5, the automatic filter cleaning mechanism 3 includes a filter 9, a box body 10 a, a dust cover 11, a brush 12 and a saw blade 14, a dust collection unit 30, a motor storage unit (not shown), and It is comprised by the outer structure part 31 (refer FIG. 8). An opening is formed on the upper surface of the box body 10a, and a brush 12 that scrapes dust adhering to the filter 9 protrudes upward from the opening on the upper surface.

  Next, a mechanism for collecting dust attached to the filter 9 will be described with reference to FIG. By rotating the shaft 15 by a motor (not shown) in the motor housing portion and transmitting the rotation of the shaft 15 to the filter 9 via the gear 16, the filter 9 rotates downward. When the filter 9 rotates downward, the filter 9 comes into contact with the brush 12 of the dust collecting unit 30, and the brush 12 scrapes dust adhering to the filter 9.

  The brush 12 also reciprocates by a motor (not shown) different from the motor that rotates the filter 9. When the brush 12 is reciprocated by a motor, the brush 12 collides with the saw blade 14 provided on both sides of the brush 12 and on the upper portion of the dust box 10, and dust scraped by the brush 12 is collected from the brush 12 into the dust box. 10 is released inside, and dust falls by gravity. By this mechanism, dust adhering to the filter 9 is stored in the bottom of the dust box 10.

  FIG. 6 is a front perspective view and a rear perspective view of the dust box 10 according to the embodiment of the present invention. As shown in FIG. 6, a bearing 17 for rotating and supporting the shaft of the brush 12 is formed on the side surface of the box body 10a. The right dust box 10 has a shaft 13 at the right end. Similarly, the left dust box 10 has a shaft 13 at the left end. The dust box 10 is fixed to the outer structure portion 31 (see FIG. 8) of the automatic filter cleaning mechanism 3 by a shaft 13.

  FIG. 7 is an enlarged view of the shaft 13 portion of FIG. As shown in FIG. 7, the dust box 10 can be detached by pulling out the shaft 13 inserted in the outer structure portion 31, so that the dust box 10 can be attached to and detached from the automatic filter cleaning mechanism 3.

  8 and 9 are exploded perspective views of a part of the automatic filter cleaning mechanism 3 according to the embodiment of the present invention. As shown in FIGS. 8 and 9, the dust box 10 can be removed from the automatic filter cleaning mechanism 3 by removing the shaft 13 inserted in the outer structure portion 31. The dust stored in the bottom of the dust box 10 is discarded with the dust box 10 removed from the automatic filter cleaning mechanism 3.

  FIG. 10 is a perspective view of the dust box 10 disassembled in the embodiment of the present invention. As shown in FIG. 10, an opening 26 is formed on the bottom surface of the box body 10a. When the bottom surface of the box body 10a is closed, the dust cover 11 covers the opening 26 on the bottom surface of the box body 10a. Is attached as a bottom lid. The dust cover 11 has a flange 21 erected on the entire circumference of the front side, back side, right side and left side of the outer edge. And when the opening part 26 of the bottom face of the box main body 10a is obstruct | occluded by the dust cover 11, the flange 21 is arrange | positioned so that the outer periphery of the box main body 10a may be covered. Therefore, dust can be reliably held in the dust box 10 without coming out of the gap between the box body 10 a and the dust cover 11.

  FIG. 11 is a rear perspective view of the exploded dust box 10 according to the embodiment of the present invention. As shown in FIG. 11, the dust cover 11 includes hinges 18 at the left and right ends of the flange 21 on the back side. The hinge 18 has a slide part 22 in the center, a stopper claw 24 is provided at the tip of one end of the slide part 22, and a deformed part 25 that is easily bent at the other end on the dust cover 11 side. The deformation | transformation part 25 is easy to bend | fold, for example because it is formed more thinly than another site | part. The box body 10a is formed with guide portions 23 for inserting the hinges 18 on the outer surfaces of the left and right ends of the back surface.

  FIG. 12 is a front perspective view and a rear perspective view of the dust box 10 according to the embodiment of the present invention. As shown in FIG. 12, the hinge 18 is inserted into the guide portion 23, and the stopper claw 24 is locked to the upper edge of the guide portion 23, thereby restricting the movement of the slide portion 22 slidable in the vertical direction. Is done. As described above, the box body 10 a and the dust cover 11 are connected through the hinge 18 and the guide portion 23. The dust cover 11 is rotatable by bending the deforming portion 25 of the hinge 18 and using the deforming portion 25 as a fulcrum. In addition, on the front side of the dust cover 11, the protrusion 19 of the box body 10a is inserted into the fixing portion 20 of the dust cover 11, so that the rotatable dust cover 11 is fixed to the box body 10a.

  FIG. 13 is a cross-sectional view of the dust box 10 when the dust cover 11 is rotated in the embodiment of the present invention. A method for discarding dust stored in the bottom of the dust box 10 will be described with reference to FIG. When the fixing portion 20 of the dust cover 11 is removed from the projection 19 on the front surface of the box body 10a, the dust cover 11 is rotatable about the deformed portion 25 of the hinge 18 as a fulcrum. Since the dust cover 11 is a bottom lid, the dust stored on the bottom of the dust box 10 can be discarded simply by rotating the dust cover 11. Furthermore, since the hinge 18 can be bent with the deformable portion 25 as a fulcrum, the opening 26 on the bottom surface of the box body 10a can be exposed. Therefore, dust can be easily discarded. In this way, the dust box 10 body from which the brush 12 protrudes does not turn over or rotate, and the dust can be discarded while the orientation is fixed, thus eliminating the possibility that the hand touches the brush 12. be able to.

  As described above, by providing the dust cover 11 that is the bottom lid of the box body 10a with the hinge 18 shape, the dust cover 11 of the dust box 10 is rotated to expose the opening 26 on the bottom surface of the box body 10a. By doing so, the dust in the dust box can be easily discarded directly. Furthermore, since dust can be discarded only by rotating the dust cover 11 and dust can be discarded without turning the dust box 10 upside down or rotating, the dust box can prevent the hand from touching the brush 12. The indoor unit of the air conditioner provided with 10 can be obtained.

In this embodiment, an example in which two dust boxes 10 are attached to the automatic filter cleaning mechanism 3 is shown. However, the present invention is not limited to this, and one or three dust boxes 10 are attached to the automatic filter cleaning mechanism 3. Two or more may be attached.
Moreover, in this Embodiment, although the hinge 18 is provided in the back side of the dust cover 11, this invention is not limited to this, You may provide the hinge 18 in the front side of the dust cover 11.
In the present embodiment, the protrusion 19 of the box body 10a is provided on the front side of the box body 10a, and the fixing part 20 of the dust cover 11 is provided on the front side of the dust cover 11. Instead, they may be provided on the back side of each.

  DESCRIPTION OF SYMBOLS 1 Housing, 2 Electrical goods, 3 Filter automatic cleaning mechanism, 4 Drain pan assembly, 5 Heat exchanger, 6 Blower, 7 Base, 8 Up-and-down air direction adjustment plate, 9 Filter, 10 Dust box, 10a Box body, 11 Dust cover , 12 brush, 13 shaft, 14 saw blade, 15 shaft, 16 gear, 17 bearing, 18 hinge, 19 protrusion, 20 fixing part, 21 flange, 22 slide part, 23 guide part, 24 stopper claw, 25 deforming part, 26 Opening, 30 dust collecting part, 31 outer structure part.

Claims (3)

A filter that attaches dust,
A brush that scrapes the dust adhering to the filter;
A bearing for rotating and supporting the shaft of the brush is provided. Openings are formed on the top and bottom surfaces, and the brush covers the box body protruding upward from the opening on the top surface, and covers the opening on the bottom surface of the box body. A dust box having a dust cover for storing the scraped dust;
An outer structure for fixing the dust box;
With
The dust box is detachably attached to the outer structure part, and the dust cover is rotatably connected to the box body via a hinge. An indoor unit of an air conditioner. The dust cover has a flange erected on the entire periphery of the outer edge, and when the opening of the bottom surface of the box body is closed by the dust cover, the flange covers the outer periphery of the box body. The indoor unit of the air conditioner according to claim 1, wherein the opening of the bottom surface of the box body is closed. The hinge has a slide part and a deformation part that bends when rotating,
The slide part has a stopper claw that engages with the upper edge of the guide part formed on the outer surface of the box body at the tip,
The bent portion is bent, so that the dust cover rotates without contacting the flange and the box body, and the opening of the bottom surface of the box body is exposed. The indoor unit of the air conditioner described in 1.

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