JP2020012579A - Air conditioner - Google Patents

Abstract

To provide an air conditioner which enables a filter to be attached to an accurate position.SOLUTION: An air conditioner (10) is formed by housing a filter unit (40) which inhibits entry of dust into a case (32) in the case (32) formed with an air introduction port (32a) and an air outlet port (32b). The filter unit (40) has: a support medium (50) supported by the case (32) and having rail parts (60); and a filter (70) which is provided so as to be slidable on the rail parts (60) and is provided so as to be detachably attached to the support medium (50). The support medium (50) has attachment guide parts (52b) which protrude upward from an upper surface (52a) of the support medium (50) and extend toward the rail parts (60) in portions facing front end parts of the rail parts (60).SELECTED DRAWING: Figure 4

Description

  The present invention relates to an air conditioner including a filter unit.

  The air conditioner is provided with a filter unit along an air inlet port opened in a case. Dust intrusion into the case is suppressed by the filter unit. As a conventional technique relating to such an air conditioner, there is a technique disclosed in Patent Document 1.

  An air conditioner as disclosed in Patent Literature 1 includes a case in which an air introduction port for introducing air is opened, a filter unit for suppressing intrusion of dust into the case, and a cleaning unit for cleaning the filter. ,have.

  The filter unit includes a support supported by the case, a filter detachably and movably provided on the support, and a drive mechanism for transmitting a driving force to the filter and moving the filter.

  The filter can be removed from the support manually by an operator. By removing the filter from the support, the filter can be replaced or the operator can perform cleaning separately from the cleaning unit. In addition, the filter can be cleaned by the cleaning unit by moving the filter by the driving mechanism.

JP 2017-198450 A

  The filter is attached and detached manually by an operator. For this reason, when the detached filter is attached again, there is a possibility that the filter is attached obliquely to the original orientation. When the filter installed at an angle is moved by the drive mechanism, the filter may be caught on the support during the movement. It is desired to attach a removable filter to the support at the correct location.

  An object of the present invention is to provide an air conditioner in which a filter can be mounted at an accurate position.

According to the present invention, a fan that introduces and blows air and a fan that introduces and blows air are arranged in a case in which an air inlet that introduces air from outside and an air outlet that blows introduced air are formed. A heat exchanger that performs heat exchange with the introduced air, and a filter unit that is provided along the air inlet and suppresses intrusion of dust into the case, are housed therein,
In the air conditioner, the filter unit includes a support having a rail portion supported by the case, and a filter slidably provided on the rail portion and detachably provided to the support.
An air conditioner is provided in which the support has a mounting guide portion projecting upward from an upper surface and extending toward the rail portion at a portion facing the front end of the rail portion. .

  In the present invention, the support has a mounting guide portion protruding upward from the upper surface and extending toward the rail portion at a portion facing the front end of the rail portion. When attaching the filter to the support, a force may be applied obliquely to the rail portion. In such a case, the filter contacts the mounting guide near the rail. By applying more force, the filter is guided towards the rail. The filter can be mounted in the correct position with respect to the support.

1 is a diagram schematically illustrating an air conditioner according to Embodiment 1 of the present invention. It is a perspective view of the indoor unit shown in FIG. FIG. 3 is a sectional view taken along line 3-3 of FIG. 2. FIG. 4 is an exploded perspective view of the filter unit shown in FIG. 3. FIG. 5 is a perspective view of the filter shown in FIG. 4. FIG. 5 is a diagram illustrating the operation of the filter unit shown in FIG. It is a figure explaining the filter unit used for the air conditioner by Example 2 of the present invention.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the drawing, Fr indicates the front, Rr indicates the rear, Le indicates the left, Ri indicates the right, Up indicates the upper side, and Dn indicates the lower side.
<Example 1>

  Please refer to FIG. FIG. 1 shows an air conditioner 10 according to the present invention. The air conditioner 10 has a cooling function of cooling the indoor In and a heating function of heating the indoor In.

  The air conditioner 10 includes an outdoor unit 20 provided in the outdoor Ou and an indoor unit 30 provided in the indoor In. The outdoor unit 20 and the indoor unit 30 are connected to each other so that the refrigerant can be circulated. Hereinafter, unless otherwise specified, the direction in which the refrigerant circulates is based on the cooling operation.

  The outdoor unit 20 includes a four-way switching valve 21 that switches the direction in which the refrigerant circulates during the cooling operation and the heating operation, a compressor 22 through which the refrigerant passing through the four-way switching valve 21 flows and compresses the refrigerant, An outdoor heat exchanger 23 through which a high-temperature and high-pressure refrigerant compressed in the compressor 22 flows, an outdoor fan 24 that blows air toward the outdoor heat exchanger 23, and depressurizes the refrigerant that has passed through the outdoor heat exchanger 23. An expansion valve 25.

  Please refer to FIG. 2 and FIG. The indoor unit 30 is used by hanging on a wall Wa in the indoor In. The indoor unit 30 includes a support plate 31 made of a metal plate fixed to a wall Wa, and a case 32 supported by the support plate 31. The case 32 includes an indoor fan 33 (fan 33) that takes in the indoor In air into the case 32 and blows the air into the indoor In, and a plurality of indoor heat exchangers 34 that exchange heat with the air taken in by the indoor fan 33. (Heat exchanger 34), a filter unit 40 including a filter 70 disposed above the indoor heat exchanger 34 and configured to suppress dust from entering the case 32, and a filter unit 40 provided behind the filter unit 40. A filter housing 35 in which the filter 70 retracted at the time of cleaning is housed, a cleaning unit 36 provided above the filter housing 35 to remove dust attached to the filter 70, and a dust removed by the cleaning unit 36. The dust box 37 to be collected is stored.

  Please refer to FIG. During the cooling operation, the refrigerant that has been made high-temperature and high-pressure by the compressor 22 exchanges heat with the outside air in the outdoor heat exchanger 23 to release heat. At this time, when the outdoor fan 24 operates, the outside air is forced to flow to the outer periphery of the outdoor heat exchanger 23 to promote heat exchange. The refrigerant that has passed through the outdoor heat exchanger 23 and released heat is decompressed in the expansion valve 25, and its temperature decreases.

  Please refer to FIG. By operating the indoor fan 33, air is introduced into the case 32 from an air inlet 32a opened at the top. The introduced air passes through the outer periphery of the indoor heat exchanger 34, and is blown into the indoor In through an air outlet 32b opened at a lower portion. The refrigerant cooled in the outdoor unit 20 (see FIG. 1) is supplied to the indoor heat exchanger 34. The air passing through the outer periphery of the indoor heat exchanger 34 exchanges heat with the refrigerant and is cooled. Cooled air is sent to the indoor In.

  Please refer to FIG. During the heating operation, the four-way switching valve 21 switches the flow path of the refrigerant, and circulates the refrigerant in a direction opposite to that during the cooling operation.

  Please refer to FIG. 3 and FIG. FIG. 4A is an exploded perspective view of the filter unit. The filter unit 40 includes a resin frame-shaped support 50 provided along the air inlet 32 a, a filter 70 movably provided on the support 50, and a filter for transmitting a driving force to the filter 70. And a drive mechanism 43 that moves the front-back direction 70.

  Referring to FIG. The support body 50 is a resin molded product detachably provided to the case 32 (see FIG. 3). The support body 50 extends in the front-rear direction and supports left and right ends of the filter 70, and front rails connecting the front ends of the left and right rails 60 and 60. A connecting portion 52, a rear rail connecting portion 53 connecting the rear ends of the left and right rail portions 60, 60, and a driving mechanism positioned near the rear rail connecting portion 53 and supporting a part of the driving mechanism 43; Support portions 54, 54, vertical rail portions 55, 55 extending between the left and right rail portions 60, 60 along the rail portions 60, 60 to prevent the filter 70 from floating, and front and rear rail connection portions. Three horizontal beam portions 56 extending left and right along the front and rear rail connection portions 52 and 53 between the front and rear rail connections 52 and 53 to prevent the filter 70 from floating are integrally formed.

  Referring to FIG. FIG. 4B is an enlarged view of a portion 4b in FIG. The left and right rail portions 60 have the same configuration. The rail portion 60 has a substantially U-shape that opens toward the center in the left-right direction of the support body 50. , The upper rail wall 63 extending from the upper end of the rail bottom 61 parallel to the lower rail wall 62, and integrally rising from the tip of the lower rail wall 62. The rail 70 has a rail guide 64 for guiding the filter 70 (see FIG. 4A), and a rail opening 65 opened at a portion of the rail bottom 61 facing the rail guide 64.

  It can be said that the rail portion 60 extends along the moving direction (the front-back direction) of the filter 70 and has a substantially U-shape based on a cross section perpendicular to the moving direction.

  The rail portion guide portion 64 has a guide surface 64a facing the rail bottom portion 61 and capable of contacting the filter 70. The guide surface 64a is constituted by a curved surface bulging toward the rail bottom 61 at the center from both ends.

  Referring to FIG. At the front rail connecting portion 52, mounting guide portions 52b, 52b projecting upward from the upper surfaces 52a, 52a and extending toward the rail portions 60, 60 are formed. The attachment guide portions 52b, 52b are elongated wall-shaped portions extending in the front-rear direction.

  The mounting guides 52b, 52b face the ends of the left and right rails 60, 60, respectively, and are formed substantially parallel to each other. The distance L1 between the two mounting guides 52b, 52b is slightly longer than the width W1 of the filter 70. The mounting guides 52b, 52b can contact the outer surface of the filter 70.

  Referring to FIG. FIG. 4C is a cross-sectional view taken along line 4c-4c in FIG. The lower end of the vertical bar 55 is a vertical bar projecting portion 55a formed by a semicircular cross section projecting downward. FIG. 4A is also referred to. At a position P <b> 1 where the vertical rails 55 and 55 intersect with the horizontal rail 56, the vertical rail protrusion 55 a protrudes below the lower end of the horizontal rail 56. Thereby, when the filter 70 moves back and forth, it is possible to suppress the filter 70 from being caught on the horizontal rail 56.

  The filter 70 is provided detachably with respect to the support 50. The filter 70 can be moved from a state detached in front of the support 50 as shown in FIG. 4A to the inside of the filter storage section 35 shown in FIG.

  From the state illustrated in FIG. 4A to the state illustrated in FIG. 3, the operator moves the filter 70 by pushing or pulling out the filter 70. For example, this operation is performed when the filter 70 is replaced or when the filter 70 is removed from the support 50 particularly when the amount of dust attached to the filter 70 is large.

  In the state shown in FIG. 3, the filter 70 is connected to the drive mechanism 43. When the drive mechanism 43 is operated from the state shown in FIG. 3, the filter 70 can be retracted toward the filter housing 35 by the drive force of the drive mechanism 43. This operation is performed, for example, during a cleaning operation that is automatically performed.

  Referring to FIG. FIG. 5A is a perspective view of the filter. The filter 70 includes a filter frame 71 formed in a substantially rectangular shape, a mesh-shaped filter body 72 supported by the filter frame 71 and configured to suppress dust from entering the case 32 (see FIG. 3). Filter longitudinal reinforcing portions 73, 73 extending in the front-rear direction in a region surrounded by the body 71, filter lateral reinforcing portions 74 extending in the left-right direction in a region surrounded by the filter frame 71, and left and right ends of the filter frame 71 And filter rack portions 75, 75 formed on the back surface of the portion and connected to the drive mechanism 43 (see FIG. 3).

  Please refer to FIG. The filter frame 71 is made of a material that easily bends so as to follow the shapes of the filter housing 35 and the support 50.

  Referring to FIG. FIG. 5B is a cross-sectional view taken along line 5b-5b in FIG. From the upper front surface to the upper front surface of the filter frame 71, a tapered surface portion 71a formed in a tapered shape is formed. That is, the tapered surface 71 a is formed at the front end of the filter 70. Please refer to FIG. When the filter 70 is advanced from the filter storage section 35 to the support 50, the filter frame 71 can be prevented from being caught on the horizontal rail 56 (see FIG. 4A).

  The filter rack portions 75 have a rack shape, and can be connected to the drive mechanism 43. The filter racks 75, 75 are formed at the left and right ends of the filter frame 71 from the front end to the rear end.

  Please refer to FIG. The drive mechanism 43 is configured by directly or indirectly connecting left and right pinion gears 43a, 43a to a motor as a drive source. The left and right pinion gears 43a, 43a are connected to each other via a shaft 43b. The drive mechanism 43 is provided at the rear end of the left and right rail portions 60. The pinion gears 43a, 43a mesh with filter rack portions 75, 75 (see FIG. 4A), respectively.

  Guide portions for guiding the filter 70 are intermittently provided at a plurality of locations in the filter storage portion 35.

  The cleaning unit 36 is a rotatable and rotatable brush 36a that abuts on the filter 70 and entangles the dust attached to the filter 70, and a separating portion 36b that abuts on the brush 36a and separates the dust attached to the brush 36a from the brush 36a. And

  The separating portion 36b is a comb-shaped member fixed to the upper end of the filter housing portion 35.

  The present invention described above has the following effects.

  Referring to FIG. 6A and FIG. FIG. 6A shows an exploded view of the support and the filter. FIG. 6B is a front view of the filter unit. The support 50 has mounting guides 52b, 52b projecting upward from the upper surfaces 52a, 52a and extending toward the rails 60, 60 at portions facing the front ends of the rails 60, 60. When attaching the filter 70 to the support 50, a force may be obliquely applied to the rails 60. In such a case, the outer surfaces of the filter racks 75, 75 abut against the mounting guides 52b, 52b. That is, the filter 70 comes into contact with the mounting guide parts 52b, 52b near the rail parts 60, 60. By applying further force, the filter 70 is guided toward the rail portions 60, 60. The filter 70 can be mounted at an accurate position with respect to the support 50.

  Referring to FIG. The filter 70 has left and right filter rack portions 75, 75 that mesh with the left and right pinion gears 43a, 43a. That is, the filter 70 is provided movably by the rack-and-pinion mechanism. If it is a rack and pinion mechanism, the filter 70 can be provided movably by a compact configuration. If the filter 70 is inserted diagonally, there is a possibility that the phases of the filter racks 75, 75 will be shifted between the left and right sides. According to the present invention, since the mounting guide portions 52b, 52b are formed on the support 50, the filter 70 can be mounted at an accurate position. When the filter 70 moves during the filter cleaning operation, the left and right filter rack portions 75, 75 mesh with the pinion gears 43a, 43a of the drive mechanism 43 in the same phase, and the filter 70 can be moved without tilting.

  The distance L1 between the two mounting guides 52b, 52b is slightly longer than the width W1 of the filter 70. The attachment guides 52b, 52b can be attached to the support 50 at more accurate positions.

  Referring to FIG. The rail section 60 has a rail section guide section 64 that is integrally raised from the tip of the lower rail wall section 62 and guides the filter 70. The filter 70 inserted straight into the support 50 can be more accurately attached to the rear end of the support 50 by the rail guide 64. Referring to FIG. The rail guides 64 can contact the inner surfaces of the filter racks 75.

  Note that the inner side surface refers to a surface facing the center in the width direction of the filter 70 when a direction perpendicular to the moving direction of the filter 70 is defined as the width direction of the filter 70. The surface of the rail portion 60 facing the rail bottom portion 61 is an outer surface.

<Example 2>
Next, a second embodiment of the present invention will be described with reference to the drawings.

  Please refer to FIG. 7A and FIG. 7B. FIG. 7A is an exploded view of a filter unit used in the air conditioner according to the second embodiment. FIG. 7B is a front view of the filter unit shown in FIG.

  The filter unit 40A used in the air conditioner 10A according to the second embodiment includes the filter unit 40 used in the air conditioner 10 according to the first embodiment (see FIG. 4A) and the mounting guide portions 52bA and 52bA. The position is different. Other basic configurations are common to the air conditioner according to the first embodiment. The same reference numerals are used for the parts common to the first embodiment, and the detailed description is omitted.

  The mounting guides 52bA, 52bA are formed so as to be able to contact the inner surfaces of the filter racks 75, 75. The height of the mounting guide portions 52bA, 52bA is lower than the height of the filter rack portions 75, 75. Therefore, the filter frame 71 moves above the mounting guides 52bA, 52bA.

  The mounting guide portions 52bA, 52bA face the ends of the left and right rail portions 60, 60, respectively, and are formed substantially parallel to each other. The distance L2 between the two mounting guides 52bA, 52bA is slightly shorter than the distance L3 between the left and right filter racks 75, 75. The mounting guides 52bA, 52bA can contact the inner surfaces of the left and right filter racks 75, 75.

  The air conditioner 10A according to the second embodiment described above also exhibits the predetermined effects of the present invention.

  Although the air conditioner according to the present invention has been described by taking an air conditioner having both a cooling function and a heating function as an example, the air conditioner having only a cooling function or only a heating function is applicable.

  Further, the present invention is applicable not only to a cooling device including an outdoor unit and an indoor unit, but also to a cooling device in which these are integrated.

  The present invention is not limited to the embodiments as long as the functions and effects of the present invention are exhibited.

  The air conditioner of the present invention is suitable for home air conditioners.

10, 10A: air conditioner 32: case 32a: air inlet 32b: air outlet 33: indoor fan (fan)
34… Indoor heat exchanger (heat exchanger)
40, 40A: Filter unit 50: Support body 52a: Upper surface 52b, 52bA: Mounting guide part 60: Rail part 61: Rail bottom part 62: Lower rail wall part 63: Upper rail wall part 64: Rail part guide part 70 ... filter

Claims (4)

A fan that introduces and blows air into a case that has an air inlet that introduces air from outside and a blower that blows introduced air, and air and heat that are arranged to surround this fan A heat exchanger for replacement, and a filter unit provided along the air inlet to suppress intrusion of dust into the case are housed,
In the air conditioner, the filter unit includes a support having a rail portion supported by the case, and a filter slidably provided on the rail portion and detachably provided to the support.
The air conditioner, wherein the support has a mounting guide portion protruding upward from an upper surface and extending toward the rail portion at a portion facing a front end of the rail portion. Further comprising a drive mechanism for moving the filter,
The drive mechanism has left and right pinion gears to which a driving force is transmitted,
The air conditioner according to claim 1, wherein the filter has left and right filter racks that mesh with the left and right pinion gears. The rail portion is formed on the left and right of the support,
The mounting guide portions are formed substantially parallel to each other in correspondence with each of the left and right rail portions,
The air conditioner according to claim 1 or 2, wherein a distance between the two mounting guide portions is slightly longer than a width of the filter.   The rail portion has a substantially U-shape with reference to a cross section perpendicular to the direction of movement of the filter, and rail bottom portions provided to face each other, and from above and below these rail bottom portions, facing the rail bottom portions facing each other. The air conditioner according to claim 3, further comprising: upper and lower rail walls that extend; and a rail guide unit that is integrally raised from a tip of the lower rail wall and guides the filter.

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