JP5981200B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner in which a filter is disposed at a suction port of a cabinet.

  In an indoor unit of an air conditioner, a fan and a heat exchanger are installed in a cabinet. A suction port is formed from the top surface of the cabinet to the front surface, and a front cover is detachably provided so as to hide the suction port on the front surface. A filter is detachably provided in the cabinet facing the suction port, and the filter is disposed along the front cover on the rear side of the front cover.

  When the front cover is opened, the filter can be attached and detached. In Patent Document 1, ribs are formed at a plurality of positions below the filter so that the filter can be easily mounted, and a holding portion having a U-shaped cross section with an upper surface opening is formed below the front frame forming the suction port. ing. By inserting the lower part of the filter into the holding part, the lower end of the filter is held.

JP 2005-132895 A

  Since the lower end of the filter can be easily inserted into the holding portion, the filter can be easily attached and detached. However, since the lower end of the filter is simply inserted, the lower end of the filter can be inserted into the holding portion even if the front and back of the filter are reversed. If the front and back sides of the filter are inserted incorrectly, the filter is not securely fixed to the cabinet, and the filter may vibrate due to the sucked air, generating noise and not being able to fully perform the dust removal function.

  In view of the above, an object of the present invention is to provide an air conditioner that prevents a filter from being inserted by preventing the filter from being inserted even if the filter is inserted with the front and back sides of the filter being reversed.

  The present invention is a filter in which a suction port is formed in a cabinet in which a heat exchanger is installed, a filter is detachably provided facing the suction port, and the filter is inserted and attached to the cabinet with the front side facing forward. A locking portion for holding the end of the filter is provided, a height portion is provided at one of the front side and the back side of the filter, and the other end is formed smoothly.

  When the filter is inserted with the front and back sides of the filter being in the correct orientation, the high side of the elevation is in contact with the locking portion, the filter is held, and when the filter is inserted with the front and back sides of the filter being reversed, The lower part side of the part comes into contact with the locking part, and the insertion of the filter is prevented.

  A filter guide for guiding a filter to be inserted may be provided in the cabinet so as to face the locking portion. The filter guide guides the filter in contact with the front side or the back side where the height portion is not provided. When the filter is inserted with the front and back sides of the filter in the correct orientation, the lower part of the filter enters the gap between the locking part and the filter guide. When the filter is inserted with the front and back sides of the filter reversed, the high part of the filter is guided in contact with the filter guide, and the low part is in contact with the locking part, and the gap between the locking part and the filter guide. Is not inserted.

  You may make it make the height of a high part larger than a clearance gap. The high part of the filter does not enter the gap, and the filter is held in the mounting position by the locking part.

  The high and low parts may be formed so as to reach the high part while increasing the height from the low part. Alternatively, a flat low part may be formed at one end of the front side or the back side of the filter, and a wall-like high part may be formed at the low part.

  A locking portion may be formed on the opening wall of the suction port of the cabinet, and the end of the attached filter may be located on the rear side of the opening wall. The end of the mounted filter is hidden by the opening wall.

  According to the present invention, even when an attempt is made to mount a filter with the front and back sides of the filter reversed, insertion of the filter is prevented, so that erroneous mounting of the filter can be prevented.

The perspective view of the indoor unit of the air conditioner of this invention Cross section of indoor unit Perspective view of indoor unit with front cover removed Perspective view of filter Diagram showing the height of the filter The figure which shows the latching part of a cabinet Side sectional view of the lower end of the filter when the filter is installed Front sectional view of the lower end of the filter when the filter is installed Diagram showing the filter when the front and back sides are inserted in the correct orientation Diagram showing filter inserted with correct orientation on both sides Diagram showing the filter when inserted with the front and back reversed The figure which shows the filter where insertion with the front and back turned upside down was prevented Side sectional view of the lower end of the filter when insertion with the front and back reversed is prevented Front sectional view of the lower end of the filter when insertion with the front and back reversed is prevented

  The indoor unit of the air conditioner of this embodiment is shown in FIGS. The indoor unit includes a heat exchanger 1 and a fan 2, which are housed in a cabinet 3. A suction port 4 is formed from the upper surface to the front surface of the cabinet 3 that is long in the left-right direction. The blower outlet 5 is formed in the curved surface from the lower front part of the cabinet 3 to the bottom face. When the cabinet 3 is viewed from the front, the width direction is the left-right direction, the depth direction is the front-rear direction, and the height direction is the up-down direction.

  Inside the cabinet 3, an air passage 6 extending from the suction port 4 to the air outlet 5 is formed, and the heat exchanger 1 and the fan 2 are arranged in the air passage 6. The heat exchanger 1 surrounds the front and top of the fan 2. A filter 7 is detachably provided in the cabinet 3 so as to face the suction port 4. The pair of left and right filters 7 are disposed above and in front of the heat exchanger 1.

  The cabinet 3 includes a back plate 10 and a front panel 11. The heat exchanger 1 and the fan 2 are attached to the back plate 10. The front panel 11 is detachably attached to the back plate 10. An opening is formed from the upper surface of the front panel 11 to the front surface, and this opening serves as a suction port 4.

  A front cover 12 that covers the front opening of the front panel 11 is detachably attached to the front panel 11. A filter guide 13 is provided on the back surface of the front panel 11. The filter 7 is held in a curved state by the filter guide 13 and the front cover 12. When the front cover 12 is opened, the filter 7 is exposed and the filter 7 can be attached and detached.

  A drain pan unit 14 is provided below the heat exchanger 1. The drain pan unit 14 is attached to the back plate 10. The air outlet 5 is formed in the drain pan unit 14, and an air guide panel 15 that opens and closes the air outlet 5 is provided in the drain pan unit 14 so as to be openable and closable, and a wind direction plate 16 is also provided.

  As shown in FIG. 4, the filter 7 includes a rectangular frame member 20, crosspiece members 21 formed in a lattice shape inside the frame member 20, and a net member 22 stretched on each lattice. . The filter 7 made of synthetic resin has flexibility, and when the filter 7 is attached to the cabinet 3, the filter 7 is maintained in a curved state.

  The filter 7 has a front and back, and a display such as “Front” is displayed on the front side of the filter 7, and a display such as “Back” is displayed on the back side. And the handle 23 is formed in the front side of the filter 7 so that it may protrude.

  As shown in FIG. 5, two rows of reinforcing ribs 24 project in the left-right direction at the lower end of the filter 7 on the front side, and positioning receiving ribs 25 project on the left and right sides of the lower end. Is done. The reinforcing rib 24 and the receiving rib 25 are integrally formed so as to be continuous. The back side of the filter 7 is formed smoothly over the entire surface, and there is no protrusion.

  The filter guides 13 are formed in a pair of left and right from the upper surface to the front surface, and support the left and right ends of the filter 7. The upper part of the filter guide 7 guides the left and right ends of the filter 7 so as to be slidable. The lower part of the filter guide 7 supports the left and right ends of the filter 7 from the back side. A horizontal guide 26 is formed between the left and right filter guides 7 in the left-right direction. The lateral guide 26 supports the back side of the filter 7.

  A pressing rib 27 is formed on the back surface of the front cover 12 so as to face the handle 23. When the front cover 12 is closed, the presser rib 27 comes into contact with the handle 23 and the filter 7 is pressed against the filter guide 13 by the front cover 12. Thereby, the filter 7 is prevented from being lifted.

  The lower end portion of the filter 7 is located behind the opening wall 30 on the lower side of the front panel 11. Therefore, the lower end portion of the filter 7 is hidden by the front panel 11. As shown in FIGS. 6 to 8, a locking portion 31 for positioning the filter 7 is provided on the lower opening wall 30 of the front panel 11.

  The locking portion 31 is formed on the rear surface of the lower opening wall 30 and protrudes toward the rear side. The flat locking portion 31 is at the same level as the upper edge of the opening wall 30. The locking portions 31 are formed in a pair of left and right so as to correspond to the left and right ends of the filter 7. The locking portion 31 is disposed to face the lower end of the filter guide 13, and a gap 32 is formed between the locking portion 31 and the filter guide 13. The width of the locking portion 31 in the left-right direction is smaller than the width of the filter guide 13 in the left-right direction.

  The locking part 31 locks the receiving rib 25 of the filter 7 attached to the cabinet 3. The receiving rib 25 is formed in a wall shape surrounding the corner of the filter 7. The receiving rib 25 is configured integrally with a lower rib 40, a lateral rib 41, and an upper rib 42. The lower rib 40 rises from the edge of the lower end portion of the filter 7 and is formed upward. The lower rib 40 gradually increases from the same height as the reinforcing rib 24. The lateral rib 41 extends from the lower rib 40 to the left and right ends in the horizontal direction. The upper ribs 42 are formed along the left and right ends of the filter 7 upward from the lateral ribs 41. The horizontal ribs 41 and the upper ribs 42 have the same height and are higher than the lower ribs 40. And the connection part of the reinforcement rib 24 and the lower rib 40, the connection part of the lower rib 40 and the horizontal rib 41, and the connection part of the horizontal rib 41 and the upper rib 42 are all curved.

  When the filter 7 is mounted on the cabinet 3, the lateral rib 41 contacts the upper surface of the locking portion 31. The filter 7 is prevented from falling from the mounting position. Further, the interval between the left and right lower ribs 40 of the filter 7 is set slightly smaller than the interval between the left and right engaging portions 31. Therefore, when the filter 7 is mounted, it is possible to prevent the filter 7 from shifting in the left-right direction by contacting one of the left and right lower ribs 40 with the locking portion 31.

  The height of the horizontal rib 41 and the height of the upper rib 42 are set to be larger than the gap 32 between the locking portion 31 and the filter guide 13. The height of the horizontal rib 41 and the height of the upper rib 42 are the lengths from the back surface of the filter 7 to the upper surfaces of the ribs 41 and 42.

  Here, the filter 7 is attached and detached when the front cover 12 is open. The filter 7 is inserted into the cabinet 3 through the suction port 4 of the cabinet 3 so that the front side of the filter 7 faces the front side. The upper end of the filter 7 is inserted into the upper part of the filter guide 13 from the opening of the front panel 11 toward the rear side. The lower end portion of the filter 7 is inserted from the opening of the front panel 11 to the rear side of the opening wall 30. When the filter 7 is mounted, the lower end of the filter 7 is located on the rear side of the front panel 11. When the front cover 12 is closed, the presser rib 27 comes into contact with the handle 23 of the filter 7 to press the filter 7 against the filter guide 13 so that the filter 7 is mounted on the cabinet 3 so as not to be displaced.

  The lower end portion of the filter 7 can be easily inserted from the opening of the front panel 11. Therefore, the front and back of the filter 7 may be reversed and the lower end of the filter 7 may be inserted. Therefore, when the filter 7 is inserted with the front and back sides of the filter 7 reversed, a height portion 43 is provided at the lower end on the front side of the filter 7 so that the insertion of the filter 7 can be prevented.

  When the filter 7 is inserted with the front and back sides of the filter 7 in the correct orientation, the high portion side of the height portion 43 abuts against the locking portion 31 and the filter 7 is held. When the filter 7 is inserted with the front and back sides of the filter 7 reversed, the lower portion side of the height portion 43 abuts against the locking portion 31 and the insertion of the filter 7 is prevented.

  The height portion 43 is provided at the lower end portion of the frame member 20 and includes a receiving rib 25 and a corner surrounded by the receiving rib 25. The high portion is a portion from the lateral rib 41 to the upper rib 42 of the receiving rib 25, and the height of the high portion is larger than the gap 32 between the locking portion 31 and the filter guide 13. The lower portion 44 is a flat portion near the corner surrounded by the receiving rib 25, and the height of the lower portion 44 is the thickness of the frame member 20 of the filter 7, and is between the locking portion 31 and the filter guide 13. This gap is smaller than the gap 32.

  As shown in FIGS. 9 and 10, when the filter 7 is inserted with the front and back of the filter 7 in the correct orientation, the back side of the filter 7 is lowered along the filter guide 13, and the lower end of the filter 7 is at the front panel 11. It enters the rear side of the opening wall 30. Since the lower end of the lower rib 40 is curved, the lower rib 40 is guided to the locking portion 31 and the filter 7 can be smoothly inserted without the lower rib 40 being caught. The lower portion 44 of the lower end portion of the filter 7 passes through the gap 32 and enters the rear side of the opening wall 30. When the lateral rib 41 comes into contact with the upper surface of the locking portion 31, the filter 7 cannot be inserted any more, and the filter 7 is held at the mounting position.

  As shown in FIGS. 10 to 14, when the filter 7 is inserted with the front and back sides of the filter 7 being reversed, the filter 7 is lowered while the lateral rib 41 and the upper rib 42 of the filter 7 are in contact with the filter guide 13. When the filter 7 is inserted with the filter 7 tilted, the lower rib 40 comes into contact with the filter guide 13 first. However, when the filter 7 is lowered, the lateral rib 41 comes into contact with the filter guide 13.

  Since the height of the high portion, that is, the height of the lateral rib 41 and the height of the upper rib 42 are larger than the gap, the lower portion 44, that is, the lower end of the corner of the filter 7 comes into contact with the locking portion 31, 7 does not enter the gap 32. Therefore, the insertion of the filter 7 is prevented, and the filter 7 cannot be inserted in a state where the back side of the filter 7 is directed to the front side. Thus, erroneous insertion of the filter 7 can be easily prevented. In particular, when the filter 7 without the handle 23 is used, it is difficult to distinguish the front and back of the filter 7, so it is very useful to provide the height portion 43.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The receiving rib may be provided on the back side of the filter. The lower end on the front side of the filter is formed smoothly. In this case, the locking portion is formed on the filter guide so as to protrude toward the front side. The opening wall facing the engaging portion with a gap is a flat guide wall so as to contact and guide the front side of the frame member of the filter. Moreover, the structure which inserts and mounts a filter not in an up-down direction but in the left-right direction may be sufficient. In this case, the height portions are provided at the left and right ends of the filter. Moreover, you may provide an elevation part in the upper end part of a filter. In this case, the locking portion is provided at the upper portion of the cabinet, and the filter is mounted by inserting the upper end portion of the filter into the cabinet. Further, when the filter is vertically symmetric or horizontally symmetric, the height portions may be provided at the lower end portion and the upper end portion of the filter, or both left and right end portions, respectively.

  The height portion may be constituted only by the receiving rib. The receiving rib is formed in a vertically long step shape, and the lower side is a low part and the upper side is a high part. Further, the high portion may be a hemispherical or cylindrical protrusion instead of a wall-like rib. Moreover, you may provide an elevation part in the intermediate part of the left-right direction of a filter. A receiving rib as a height portion is formed on the vertical beam of the beam member. This receiving rib is formed in the above-mentioned step shape.

  You may comprise a receiving rib only with a horizontal rib and an upper rib. Thus, the lower rib may be eliminated as the height portion. However, if there is no lower rib, the rigidity of the filter is weakened from the lower end of the filter, particularly from the lateral rib to the lower end, and the filter is liable to be bent. For this reason, if the filter is accidentally mounted face down, the lower end of the filter will be bent, and if the filter is forcibly pushed in, the corner of the lower end of the filter may enter the gap between the locking portion and the filter guide. There is. Therefore, it is preferable to provide a lower rib. Further, the lower rib may be extended to the lower end of the filter. Thereby, even if the reinforcing rib is eliminated, the rigidity of the lower end portion of the filter can be maintained.

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Fan 3 Cabinet 4 Air inlet 7 Filter 11 Front panel 12 Front cover 13 Filter guide 23 Handle 25 Receiving rib 26 Side guide 27 Push rib 30 Opening wall 31 Locking part 32 Gap 40 Lower rib 41 Side rib 42 Top Rib 43 Height Low 44 Low

Claims (6)

A cabinet with a heat exchanger is provided with a suction port, and a filter is detachably provided facing the suction port.The end of the filter that is inserted into the cabinet with the front side facing forward is attached to the cabinet. The holding portion is provided, the height portion is provided at either the front or back end of the filter, the other end is formed smoothly, and the filter is inserted into the low portion of the height portion. when, as lower portion approaches the engagement portion ahead and positioned closer to the end portion of the filter than higher part, when the filter is inserted front and back sides of the filter in the correct orientation, the high portion of the undulating portion is When the filter is held in contact with the locking part and the filter is inserted with the front and back sides of the filter being reversed, the lower part of the high and low parts comes into contact with the locking part and prevents insertion of the filter. A featured air conditioner. A cabinet with a heat exchanger is provided with a suction port, and a filter is detachably provided facing the suction port.The end of the filter that is inserted into the cabinet with the front side facing forward is attached to the cabinet. A filter that is provided with a holding portion to be held, is provided with a height portion at one of the front side and the back side of the filter, and is smoothly formed at the other end to guide the filter to be inserted into the cabinet guide provided opposite to the engaging portion, when the filter is inserted front and back sides of the filter in the correct orientation, see write lower part of the filter enters into the gap between the engaging portion and the filter guides, high and low portions high portion Is in contact with the locking part, the filter is held, and when the filter is inserted with the front and back sides of the filter being reversed, the lower part of the high and low parts comes into contact with the locking part and the insertion of the filter is prevented Special Air conditioner shall be the. The air conditioner according to claim 2, wherein the height of the high portion is larger than the gap. The air conditioner according to any one of claims 1 to 3, wherein the high and low parts are formed so as to reach a high part while increasing the height from the low part. The flat low part is formed in either one end part of the front side or the back side of the filter, and a wall-like high part is formed in the low part. Air conditioner. The air conditioner according to any one of claims 1 to 5, wherein a locking portion is formed on the opening wall of the suction port of the cabinet, and an end portion of the attached filter is located on the rear side of the opening wall. .

Images