JP7033028B2 - 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 prior art relating to such an air conditioner.

The air conditioner disclosed in Patent Document 1 is attached to a case provided with an introduction port for introducing air, a filter for preventing dust from entering the case, and a filter that supports the filter so that it can be taken in and out. It is equipped with a support, a filter gear that moves the filter, a drive gear that rotates the filter gear, and a brush that cleans the sent filter.

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

The drive gear is provided on the case. The 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 driving gear is applied to the support that can be attached to and detached from the case. Even when this driving force is applied to the support, it is desirable to keep the support in the mounting position.

In the air conditioner disclosed in Patent Document 2, a support (filter unit 40) that can be attached to and detached from the case (main frame 30) is attached. A fixing portion (closing member 35) is provided in order to securely fix the attached support to the case. If such a fixing portion is provided in the air conditioner of Patent Document 1, the detachability of the support is lowered and the number of parts is increased.

It is desirable to keep the support in place in the case in place without reducing the detachability of the support.

Japanese Unexamined Patent Publication No. 2018-84388 Japanese Unexamined Patent Publication No. 2014-70842

The present invention provides an air conditioner capable of keeping a support supporting a filter in a predetermined mounting position when moving the filter for cleaning without reducing the detachability of the support. Make it an issue.

According to the first aspect of the present invention, there is a case provided with an introduction port for introducing air, a filter for preventing dust from entering the case, and a filter that supports the filter so that it can be taken in and out and is attached to and detached from the case. It is provided with a support that can be attached, a filter gear that is provided on the support and moves the filter , and a drive gear that is provided on the case and can be meshed with the filter gear.
The support has a side surface along the loading and unloading direction of the filter, the side surface comprising a first protrusion that projects toward the inner wall surface of the case.
The inner wall surface has a guide groove in which the first protrusion can slide, and the guide groove extends in the loading / unloading direction of the filter.
The support is
The first protrusion is located at the innermost side of the guide groove, and the filter gear is separated from the drive gear.
The first protrusion is located on the innermost side of the guide groove, and the filter gear is between the drive gear and the mounting position where the filter gear is engaged.
In an air conditioner capable of swinging from the first protrusion 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 projects toward the side surface and the second protrusion It has a regulating part that can be contacted,
With the support in the mounting position, the restricting portion is located closer to the insertion port of the case than the second protruding portion with respect to the direction in which the guide groove extends. The structure is such that the movement of the second protrusion to the insertion port side can be restricted.
An air conditioner is provided characterized in that the inner wall surface has a first guide portion extending along the guide groove from an end portion of the restricting portion on the introduction port side .

As described in claim 2 , preferably, the inner wall surface has a second guide portion extending from an end portion of the first guide portion on the insertion port side in a direction away from the introduction port. There is.

In the invention according to claim 1, the side surface of the support has a second protruding portion protruding toward the inner wall surface of the case. The inner wall surface of the case has a regulating portion that projects toward the side surface of the support and allows the second protrusion to come into contact with the inner wall surface. With the support in the mounting position, the restricting portion is located closer to the insertion slot of the case than the second protruding portion with respect to the direction in which the guide groove extends. Therefore, when the filter is moved, even if the support in the mounted state tries to move due to the driving force of the drive gear being transmitted to the support, the second protruding portion abuts on the regulating portion and the support is supported. Movement of the case to the insertion slot side 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, and when the support moves or tries to move, the protruding parts can come into contact with each other. .. Therefore, the support can be kept in the mounting position without deteriorating the detachability of the support.

In addition, the inner wall surface has a first guide portion extending along the guide groove from the end portion of the regulation portion on the introduction port side. Therefore, when the support is attached to the case, the second protrusion can be guided to a position where it can come into contact with the restricting portion.

In the invention according to claim 2 , the inner wall surface has a second guide portion extending from the end portion of the first guide portion on the insertion port side in a direction away from the introduction port. Therefore, the second protruding portion can be guided toward the first guide portion. The second protruding portion 62 can reach the regulating portion via the first guide portion and the second guide portion.

It is a perspective view of the air conditioner according to the Example of this invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. It is a figure explaining the attachment of the support to the case. It is a figure explaining the left side surface of a filter and the inner wall surface on the left side of a case. FIG. 5A is a diagram illustrating a support at a position separated from the case. FIG. 5B is a diagram illustrating a support at a mounting position with respect to the case. FIG. 6 is a sectional view taken along line 6-6 of FIG. 5 (b).

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

FIG. 1 shows an air conditioner 10 according to an embodiment. The air conditioner 10 is used by hanging it on an indoor wall Wa.

See FIGS. 1 and 2. The air conditioner 10 has a case 11 having an introduction port 21 for introducing air on the upper surface, a fan 22 that takes indoor air into the case 11 and blows it indoors, and heat exchange with the air taken in by the fan 22. A plurality of heat exchangers 23, an air outlet 24 for blowing air that has passed through the outer periphery of these heat exchangers 23, and dust that is arranged above the heat exchangers 23 to prevent dust from entering the case 11. A filter unit 30 for prevention, a cleaning unit 40 for cleaning the filter 31 provided in the filter unit 30, a holding unit 12 for temporarily holding the filter 31 cleaned by the cleaning unit 40, and dust attached to the case 11 It has a collection box 13 for collecting air, 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 separating portion 43 for separating dust from the brush 41. The receiving portion 42 is integrally formed on 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 in the case 11, the filter 31 is sent to the rear (cleaning unit 40 side).

One side of the fed filter 31 is supported by the receiving portion 42. The other surface of the filter 31 comes into contact with the tip of the brush 41. The rotating brush 41 entangles dust adhering to the outer surface of the filter 31. The filter 31 from which dust has been removed is sent to the holding portion 12.

The rotating brush 41 comes into contact with the separating portion 43. The tip of the brush 41 is repelled by the separating portion 43, and the dust adhering to the brush 41 is separated. The separated dust passes behind the holding portion 12 and falls into the collection box 13 to be collected. The user can remove the collection box 13 from the case 11 and dispose of the collected dust.

See FIG. The filter unit 30 has a support 50 that supports the filter 31 so that it can be taken in and out. The left and right filter gears 32 and 33 have a common rotation shaft 32a. The driving force transmitted from the drive gear 16 to the filter gear 32 is also transmitted to the filter gear 33 via the rotating shaft 32a. The filter 31 moves by engaging the left and right filter gears 32 and 33 with the racks formed on the left and right filter end portions 34 and 35.

The support 50 is a resin molded product and is removable from the case 11. The support 50 is curved backward. The support 50 has left and right filter gears 32 and 33 and left and right gear support portions 51 and 52 that support both ends of the brush 41.

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

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

See FIG. The left side surface 60 of the support 50 has a left protruding portion 61 (first protruding portion 61) protruding vertically from the left side surface 60. Further, the left side surface 60 of the support 50 has a second protruding portion 62 projecting vertically from the left side surface 60. The left protrusion 61 and the second protrusion 62 both exhibit a columnar shape.

The left inner wall surface 80 of the case 11 is provided with a left guide groove 81 on which the left protrusion 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 to which the second protruding portion 62 of the left side surface 60 can come into contact.

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

The support 50 at the separated position can swing with the left protruding portion 61 and the right protruding portion 54 (see FIG. 3) as base points. As shown by the arrow (2), when the support 50 at the separated position is swung in the direction of approaching the case 11 with the left protrusion 61 and the right protrusion 54 as the base points, the support 50 is attached to the case 11. ..

FIG. 5B shows the support 50 at the mounting position. The mounting position means a state in which the support 50 is mounted on the case 11. More specifically, it means a state in which the left protrusion 61 is located at the rearmost position of the left guide groove 81 and the filter gear 32 is engaged with the drive gear 16.

The rotary shaft 32a of the filter gear 32 is located in front of the rotary shaft 16a of the drive gear 16 (on the side of the insertion port 81a of the left guide groove 81) and above (on the side of the introduction port 21 of the case 11).

4 and 5 (b) are referred to. When viewed from the axial direction of the drive gear 16, the contact portion 82 provided on the left inner wall surface 80 of the case 11 has a substantially U-shape. 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 the upper end portion 83a (end portion on the introduction port 21 side) of the regulating portion 83. It has 84 and a second guide portion 85 extending downward (direction away from the introduction port 21) from the front end portion 84a (end portion on the insertion port 81a side) of the first guide portion 84. ..

See FIG. 5 (b) and FIG. The regulation unit 83 projects toward the left side surface 60. The second protruding portion 62 projects toward the left inner wall surface 80. The regulating portion 83 is located in front of the second protruding portion 62 (on the side of the insertion port 81a of the case 11). Specifically, the second protruding portion 62 and the rear surface 83b (the surface on the back side in the sliding direction) of the regulating portion 83 are in contact with each other. In the left-right direction (filter width direction), the left protrusion 61 is longer than the second protrusion 62.

See FIG. The right inner wall surface 70 and the right side surface 53 may have the same configuration 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, a portion corresponding to the second protruding portion 62 and the contact portion 82 (see FIGS. 4, 5 (b) and 6) is provided. May be good. Further, a portion corresponding to the second protruding portion 62 and the contact portion 82 may be provided only on the right side.

Next, the effect of the embodiment will be described.

2 and 5 (b) are referred to. When the cleaning unit 40 is activated and the filter 31 moves toward the holding portion 12, as shown by the arrow (3), the drive gear 16 rotates counterclockwise and the filter gear 32 that meshes with the drive gear 16 , Rotate clockwise.

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

See FIG. 5 (b) and FIG. The left side surface 60 of the support 50 has a second protrusion 62 that projects toward the left inner wall surface 80 of the case 11. The left inner wall surface 80 has a regulating portion 83 projecting toward the left side surface 60. When the support 50 is in the mounting position (see FIG. 5B), the left protrusion 61 abuts on the rear surface 83b of the regulation portion 83 provided in front of the left protrusion 61 (on the insertion port 81a side). ing. Therefore, a driving force is applied from the drive gear 16 to the support 50, and even if the left protrusion 61 tries to move as shown by the arrow (4), the regulation portion 83 causes the left protrusion 61 to move forward. Be regulated. Therefore, the support 50 can be kept in the mounting position without deteriorating the detachability of the support 50.

The regulating portion 83 may be located at a position where the second protruding portion can come into contact with the regulating portion 83. That is, when the support 50 is in the mounting position, the second protruding portion does not have to be in contact with the regulating portion 83. The support 50 may be in a position where the second protrusion comes into contact immediately after the support 50 starts moving along the left guide groove 81. Further, the shape of the regulating portion 83 is a thin plate extending vertically, but the shape does not matter.

4 and 5 (a) are referred to. 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 83a of the regulation portion 83. Therefore, when the support 50 is attached to the case 11, the second protruding portion 62 can be guided to a position where it can come into contact with the regulating 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 protruding portion 62 is used as a first guide. It can be guided toward the portion 84 and prevents the second protruding portion 62 from entering below the first guide portion 84 (the side of the first guide portion 84 facing the opposite side of the guide surface). can do. Therefore, the second protruding portion 62 can reach the regulating portion 83 via the first guide portion 84 and the second guide portion 85.

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

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

10 ... Air conditioner 11 ... Case 15 ... Wall 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 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 portion 83 ... Restriction portion 83a ... Upper end portion 83b ... Rear surface 84 ... First guide portion 84a ... Front end 85 ... Second guide

Claims (2)

A case provided with an introduction port for introducing air, a filter that prevents dust from entering the case, and a support that supports the filter so that it can be taken in and out and that is detachably attached to the case. A filter gear provided on the support for moving the filter and a drive gear provided on the case and capable of meshing with the filter gear are provided.
The support has a side surface along the loading and unloading direction of the filter, the side surface comprising a first protrusion that projects toward the inner wall surface of the case.
The inner wall surface has a guide groove in which the first protrusion can slide, and the guide groove extends in the loading / unloading direction of the filter.
The support is
The first protrusion is located at the innermost side of the guide groove, and the filter gear is separated from the drive gear.
The first protrusion is located on the innermost side of the guide groove, and the filter gear is between the drive gear and the mounting position where the filter gear is engaged.
In an air conditioner capable of swinging from the first protrusion 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 projects toward the side surface and the second protrusion It has a regulating part that can be contacted,
With the support in the mounting position, the restricting portion is located closer to the insertion port of the case than the second protruding portion with respect to the direction in which the guide groove extends. The structure is such that the movement of the second protrusion to the insertion port side can be restricted.
An air conditioner characterized in that the inner wall surface has a first guide portion extending along the guide groove from an end portion of the regulation portion on the introduction port side . The first aspect of the present invention is characterized in that the inner wall surface has a second guide portion extending from an end portion of the first guide portion on the insertion port side in a direction away from the introduction port. The described air conditioner.

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