JP7199582B2 - air conditioner - Google Patents

Description

The present invention relates to an air conditioner having a filter cleaning function.

Some air conditioners have a function of cleaning a filter that prevents dust from entering. There is a technique disclosed in Patent Document 1 as a conventional technique relating to such an air conditioner.

The air conditioner disclosed in Patent Document 1 includes a case provided with an inlet for introducing air, a filter for preventing dust from entering the case, and a filter that is supported so as to be removable and attached to the case. a filter gear for moving the filter; a drive gear for rotating the filter gear; and a brush for cleaning the fed filter.

When the filter gear is rotated by the driving force of the drive gear while the support is attached to the case, the filter moves toward the brush. A rotating brush scrapes off dust adhering to the surface of the filter. The filter cleaned by the brush is temporarily held in the holding portion inside the case.

A drive gear is provided on the case. A filter gear is provided on the support. The support is detachably attached to the case. That is, when cleaning the filter, the driving force of the drive gear is applied to the support that is detachable from the case. Even when this driving force is applied to the support, it is desirable to keep the support in the mounted position.

In the air conditioner disclosed in Patent Document 2, a detachable support (filter unit 40) is attached to the case (main frame 30). A fixing part (closure member 35) is provided to securely fix the attached support to the case. If such a fixing portion is provided in the air conditioner of Patent Literature 1, the attachment/detachment of the support will be reduced and the number of parts will increase.

It is desirable to keep the support in place on the case without compromising the ability to attach and detach the support.

JP 2018-84388 A JP 2014-70842 A

SUMMARY OF THE INVENTION The present invention provides an air conditioner in which a support for supporting a filter can be held at a predetermined mounting position when the filter is moved for cleaning without deteriorating the detachability of the support. Make it an issue.

According to the first aspect of the invention, there is provided a case provided with an inlet for introducing air, a filter for preventing dust from entering the case, and the filter being supported so as to be able to be taken in and out, and attached to and detached from the case. a support that is removably attached, a filter gear provided on the support for moving the filter, and a drive gear provided on the case that can mesh with the filter gear,
The support has a side surface along the direction in which the filter is taken in and out, and the side surface has a first projection projecting toward the inner wall surface of the case,
The inner wall surface has a guide groove in which the first projecting portion can slide, the guide groove extending in a direction in which the filter is taken in and out,
The support is
a separated position where the first projecting portion is located on the innermost side of the guide groove and the filter gear is separated from the drive gear;
between the mounting position where the first projecting portion is located on the innermost side of the guide groove and where the filter gear is in mesh with the drive gear,
In an air conditioner that can swing with the first projecting portion as a base point,
The side surface of the support has a second protrusion that protrudes toward the inner wall surface, and the inner wall surface of the case protrudes toward the side surface to form the second protrusion. It has a contactable regulation part,
The rotation axis of the filter gear is located closer to the insertion opening side of the guide groove than the rotation axis of the drive gear,
When viewed from the direction along the rotation shaft of the drive gear, the support is at the mounting position,
The restricting portion is positioned between the rotating shaft of the drive gear and the rotating shaft of the filter gear with respect to the direction in which the guide groove extends. The air conditioner is characterized in that it is configured to be capable of restricting the movement of the air conditioner toward the insertion port side.

Preferably, the inner wall surface has a first guide portion extending along the guide groove from the inlet-side end of the restriction portion.

Preferably, the inner wall surface has a first guide portion extending along the guide groove from the inlet-side end of the restriction portion.

In the invention according to claim 1, the side surface of the support has the second projecting portion projecting toward the inner wall surface of the case. The inner wall surface of the case has a regulating portion that protrudes toward the side surface of the support and can abut against the second protruding portion. When the support is in the mounting position, the restricting portion is located closer to the insertion opening side of the case than the second projecting portion with respect to the direction in which the guide groove extends. Therefore, when the filter is moved, even if the support in the attached state tries to move due to the driving force of the drive gear being transmitted to the support, the second projecting portion abuts against the restricting portion, causing the support to move. Movement of the case toward the insertion opening is restricted.

That is, a part of the side surface of the support and a part of the inner wall surface of the case are projected respectively, and when the support moves or tries to move, the projected parts are configured to contact each other. . Therefore, the support can be kept in the mounting position without deteriorating the detachability of the support.

In the invention according to claim 2, the inner wall surface has the first guide portion extending along the guide groove from the inlet-side end portion of the restricting portion. Therefore, when the support is attached to the case, the second projecting portion can be guided to a position where it can contact the restricting portion.

In the invention according to claim 3, the inner wall surface has a second guide portion extending in a direction away from the introduction port from the end portion of the first guide portion on the side of the insertion port. Therefore, the second projecting portion can be guided toward the first guide portion. The second projecting portion 62 can reach the restricting portion via the first guide portion and the second guide portion.

1 is a perspective view of an air conditioner according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1; FIG. It is a figure explaining attachment of the support body with respect to a case. It is a figure explaining the left side surface of a filter, and the left inner wall surface of a case. FIG. 5(a) is a diagram for explaining the support at a spaced position with respect to the case. FIG. 5(b) is a diagram illustrating the support at the mounting position with respect to the case. 6 is a cross-sectional view taken along line 6-6 of FIG. 5(b); FIG.

<Example>
An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, Fr indicates the front, Rr the rear, L the left, R the right, Up the top, and Dn the bottom.

FIG. 1 shows an air conditioner 10 according to an embodiment. This air conditioner 10 is hung on an indoor wall Wa.

Please refer to FIGS. The air conditioner 10 includes a case 11 having an inlet 21 for introducing air on the upper surface, a fan 22 for taking indoor air into the case 11 and blowing it indoors, and heat exchange with the air taken in by the fan 22. a plurality of heat exchangers 23 that carry out the above, an air blowing port 24 that blows air that has passed through the outer periphery of these heat exchangers 23, and a blower port 24 that is arranged above these heat exchangers 23 to prevent dust from entering the case 11 a cleaning unit 40 for cleaning the filter 31 provided in the filter unit 30; a holding portion 12 for temporarily holding the filter 31 cleaned by the cleaning unit 40; and a metal support plate 14 provided on the rear surface of the case 11 and fixed to the wall Wa.

The cleaning unit 40 has a rotatable brush 41 , a receiving portion 42 capable of sandwiching the filter 31 together with the brush 41 , and a separation portion 43 separating dust from the brush 41 . The receiving portion 42 is formed integrally with the upper portion of the wall portion 15 provided in front of the holding portion 12 .

The filter unit 30 has a filter gear 32 for moving the filter 31 . When the filter gear 32 is rotated by the drive gear 16 (see FIG. 3) provided on the case 11, the filter 31 is sent rearward (toward the cleaning unit 40).

One surface of the fed filter 31 is supported by the receiving portion 42 . The other surface of filter 31 contacts the tip of brush 41 . The rotating brush 41 picks up dust adhering to the outer surface of the filter 31 . Filter 31 from which dust has been removed is sent to holding portion 12 .

The rotating brush 41 contacts the separating portion 43 . The tip of the brush 41 is flipped by the separating portion 43, and the dust adhering to the brush 41 is separated. The separated dust passes behind the holder 12 and falls into the collection box 13 to be collected. The user can remove the collection box 13 from the case 11 and discard the collected dust.

Please refer to FIG. The filter unit 30 has a support 50 that supports the filter 31 so that it can be put in and taken out. The left and right filter gears 32, 33 have a common rotating shaft 32a. The driving force transmitted from the driving gear 16 to the filter gear 32 is also transmitted to the filter gear 33 via the rotating shaft 32a. The left and right filter gears 32 and 33 mesh with the racks formed on the left and right filter ends 34 and 35 to move the filter 31 .

The support 50 is a molded resin product and is attachable to and detachable from the case 11 . The support 50 is curved downward. The support 50 has left and right gear support portions 51 , 52 supporting both ends of the left and right filter gears 32 , 33 and the brush 41 .

The left and right gear support portions 51 and 52 respectively have a left side surface 60 and a right side surface 53 along the attachment/detachment direction of the filter unit 30 (see arrow (1)).

A right side surface 53 of the support 50 has a right protrusion 54 that vertically protrudes from the right side surface 53 . The right projecting portion 54 has a columnar shape. The right inner wall surface 80 of the case 11 is provided with a right guide groove 71 in which the right projecting portion 54 can slide. The right guide groove 71 extends substantially in the front-rear direction (direction in which the filter unit 30 is attached and detached). When the support 50 is attached to the case 11 , the right side surface 53 faces the right inner wall surface 70 .

Please refer to FIG. A left side surface 60 of the support body 50 has a left protrusion 61 (first protrusion 61) that protrudes vertically from the left side surface 60 . Further, the left side 60 of the support 50 has a second projection 62 that vertically protrudes from the left side 60 . Both the left protrusion 61 and the second protrusion 62 are columnar.

A left inner wall surface 80 of the case 11 is provided with a left guide groove 81 in which the left projecting portion 61 can slide. The left guide groove 81 extends substantially in the front-rear direction. When the support 50 is attached to the case 11 , the left side surface 60 faces the left inner wall surface 80 . Further, the left inner wall surface 80 of the case 11 is provided with a contact portion 82 with which the second projecting portion 62 of the left side surface 60 can contact.

FIG. 5(a) shows the support 50 in the spaced position. The separated position is a state in which the left protruding portion 61 is positioned at the rearmost side of the left guide groove 81 (on the far side in the sliding direction) and the filter gear 32 is separated from the drive gear 16 .

The support body 50 at the separated position can swing around the left projecting portion 61 and the right projecting portion 54 (see FIG. 3). As indicated by an arrow (2), the support 50 is attached to the case 11 by swinging the support 50 at the separated position toward the case 11 with the left protruding portion 61 and the right protruding portion 54 as base points. .

FIG. 5(b) shows the support 50 in the mounted position. The mounting position refers to a state in which the support 50 is mounted on the case 11 . Specifically, it refers to a state in which the left projecting portion 61 is positioned at the rearmost position of the left guide groove 81 and the filter gear 32 is in mesh with the drive gear 16 .

The rotating shaft 32a of the filter gear 32 is positioned forward (on the side of the insertion port 81a of the left guide groove 81) and above (on the side of the inlet 21 of the case 11) the rotating shaft 16a of the drive gear 16.

Please refer to FIGS. 4 and 5(b). A contact portion 82 provided on the left inner wall surface 80 of the case 11 has a substantially U shape when viewed from the axial direction of the drive gear 16 . The contact portion 82 includes a regulating portion 83 extending in the vertical direction and a first guide portion extending along the left guide groove 81 from an upper end portion 83a of the regulating portion 83 (the end portion on the introduction port 21 side). and a second guide portion 85 extending downward (in the direction away from the introduction port 21) from the front end portion 84a (the end portion on the side of the insertion port 81a) of the first guide portion 84. .

Please refer to FIGS. 5(b) and 6. FIG. The restricting portion 83 protrudes toward the left side surface 60 . The second protrusion 62 protrudes toward the left inner wall surface 80 . The restricting portion 83 is located forward of the second projecting portion 62 (on the insertion opening 81a side of the case 11). Specifically, the second projecting portion 62 and the rear surface 83b of the restricting portion 83 (surface on the far side in the sliding direction) are in contact with each other. The left protruding portion 61 is longer than the second protruding portion 62 in the left-right direction (filter width direction).

Please refer to FIG. The right inner wall surface 70 and the right side surface 53 may have the same configurations as the left inner wall surface 80 and the left side surface 60, respectively. That is, not only on the left side where the drive gear 16 is located, but also on the right side there are provided portions corresponding to the second projecting portion 62 and the contact portion 82 (see FIGS. 4, 5B, and 6). good too. Furthermore, portions corresponding to the second projecting portion 62 and the contact portion 82 may be provided only on the right side.

Next, the effects of the embodiment will be described.

Please refer to FIG. 2 and FIG. 5(b). When the cleaning unit 40 is operated and the filter 31 moves toward the holding portion 12 as indicated by arrow (3), the driving gear 16 rotates counterclockwise, and the filter gear 32 meshing with the driving gear 16 rotates , rotating clockwise.

Due to the contact between the teeth of the drive gear 16 and the teeth of the filter gear 32, a driving force is applied from the drive gear 16 to the support 50 on which the filter gear 32 is provided. Therefore, as indicated by arrow (4), the support 50 may move forward along the left guide groove 81 (toward the insertion opening 81a).

Please refer to FIGS. 5(b) and 6. FIG. A left side surface 60 of the support 50 has a second projecting portion 62 projecting toward the left inner wall surface 80 of the case 11 . The left inner wall surface 80 has a restricting portion 83 protruding toward the left side surface 60 . When the support 50 is at the mounting position (see FIG. 5B), the left protruding portion 61 abuts on the rear surface 83b of the restricting portion 83 provided in front of the left protruding portion 61 (on the side of the insertion port 81a). ing. Therefore, even if the drive gear 16 applies a driving force to the support body 50 and the left protruding portion 61 attempts to move as indicated by arrow (4), the forward movement of the left protruding portion 61 is prevented by the restricting portion 83. Regulated. Therefore, the support 50 can be kept at the mounting position without deteriorating the detachability of the support 50 .

It should be noted that the restricting portion 83 may be located at a position where the second projecting portion can come into contact. That is, the second projecting portion does not have to be in contact with the restricting portion 83 when the support 50 is at the mounting position. Immediately after the support body 50 starts moving along the left guide groove 81, the second protrusion may be in a position where it abuts. Furthermore, the shape of the restricting portion 83 is a thin plate extending vertically, but any shape is acceptable.

Please refer to FIGS. 4 and 5(a). In addition, the left inner wall surface 80 has a first guide portion 84 extending along the left guide groove 81 from the upper end portion 83 a of the restricting portion 83 . Therefore, when attaching the support 50 to the case 11 , the second projecting portion 62 can be guided to a position where it can contact the restricting portion 83 .

In addition, the left inner wall surface 80 has a second guide portion 85 extending downward from the front end portion 84a of the first guide portion 84, so that the second projection 62 is positioned in the first guide portion. can be guided toward the portion 84, and the second projecting portion 62 is prevented from entering below the first guide portion 84 (the side opposite to the guide surface of the first guide portion 84). can do. Therefore, the second projecting portion 62 can reach the restricting portion 83 via the first guide portion 84 and the second guide portion 85 .

As long as the action and effects of the present invention are exhibited, the present invention is not limited to the examples.

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

DESCRIPTION OF SYMBOLS 10... Air conditioner 11... Case 15... Wall part 16... Drive gear 16a... Rotating shaft 21... Introduction port 30... Filter unit 31... Filter 32... Filter gear 32a... Rotating shaft 40... Cleaning unit 41... Brush 42... Receiving part REFERENCE SIGNS LIST 50: support 51: gear support 52: gear support 53: right side 54: right protrusion 60: left side 61: left protrusion (first protrusion)
62... Second protrusion 70... Right inner wall surface 71... Right guide groove 80... Left inner wall surface 81... Left guide groove 82... Contact part 83... Regulating part 83a... Upper end part 83b... Rear surface 84... First guide part 84a... front end portion 85... second guide portion

Claims (3)

A case provided with an inlet for introducing air, a filter for preventing dust from entering the case, and a support body that supports the filter so that it can be taken in and out and is detachably attached to the case. , a filter gear provided on the support for moving the filter, and a driving gear provided on the case and capable of meshing with the filter gear,
The support has a side surface along the direction in which the filter is taken in and out, and the side surface has a first projection projecting toward the inner wall surface of the case,
The inner wall surface has a guide groove in which the first projecting portion can slide, the guide groove extending in a direction in which the filter is taken in and out,
The support is
a separated position where the first projecting portion is located on the innermost side of the guide groove and the filter gear is separated from the drive gear;
between the mounting position where the first projecting portion is located on the innermost side of the guide groove and where the filter gear is in mesh with the drive gear,
In an air conditioner that can swing with the first projecting portion as a base point,
The side surface of the support has a second protrusion that protrudes toward the inner wall surface, and the inner wall surface of the case protrudes toward the side surface to form the second protrusion. It has a contactable regulation part,
The rotation axis of the filter gear is located closer to the insertion opening side of the guide groove than the rotation axis of the drive gear,
When viewed from the direction along the rotation shaft of the drive gear, the support is at the mounting position,
The restricting portion is positioned between the rotating shaft of the drive gear and the rotating shaft of the filter gear with respect to the direction in which the guide groove extends. An air conditioner characterized in that the movement of the air conditioner toward the insertion port side can be restricted. 2. The air conditioner according to claim 1, wherein the inner wall surface has a first guide portion extending along the guide groove from an end of the restriction portion on the introduction port side. Device. 3. The apparatus according to claim 2, wherein the inner wall surface has a second guide portion extending from an end of the first guide portion on the side of the insertion port in a direction away from the introduction port. An air conditioner as described.

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