JP7105127B2 - 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.

FIG. 8(a) is a cross-sectional view schematically showing a configuration for cleaning the filter of the air conditioner of Patent Document 1. FIG. An air conditioner 100 includes a case 102 provided with an inlet 101 for introducing air, a filter 103 for preventing dust from entering the case, and a filter 103 that is detachably held and detachable from the case 102. It has a support 104, a drive mechanism 105 that feeds the filter 103, a brush 106 that cleans the fed filter 103, and a holder 107 that temporarily holds the filter 103 cleaned by the brush 106.

An inner wall portion 102a of the case 102 is provided with a guide groove 102b. A side surface 104a of the support 104 has a protrusion 104b that can slide along the guide groove 102b. The support 104 can be attached to the case 102 by sliding the projecting portion 104b along the guide groove 102b.

When the drive mechanism 105 is driven, the filter 103 moves toward the holding portion 107 . Before entering the holding portion 107, the surface of the filter 103 comes into contact with the rotating brush 106, and the dust adhering to the surface of the filter 103 is entangled. Filter 103 from which dust has been removed is sent to holding section 107 .

See FIG. 8(b). As noted above, filter 103 is movable on support 104 . Therefore, when the filter 103 is attached to the support 104, the tip 103a of the filter 103 may protrude from the end 104c of the support 104 in the feeding direction. When the support 104 is slid with respect to the case 102 while the tip 103a is protruding, the tip 103c of the filter 103 may be positioned in front of the entrance of the holder 107. FIG.

See FIG. 8(c). If the support 104 is attached to the case 102 while the tip portion 103 a is positioned in front of the entrance of the holding portion 107 , the filter 103 cannot be fed into the holding portion 107 .

Even if the support 104 is attached to the case 102 with the tip 103a of the filter 103 protruding from the end 104c, it is preferable if the filter 103 can be fed into the holder 107. FIG.

JP 2018-84388 A

The present invention provides an air conditioner capable of sending a filter to a predetermined position even when a support supporting the filter with its tip projecting is attached to the case. 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 supported so as to be able to be taken in and out of the case. a detachable support, a driving mechanism for feeding the filter from the support, a cleaning unit for cleaning the fed filter, a holding section for temporarily holding the filter cleaned by the cleaning unit, In an air conditioner having
Immediately before the inlet of the holding part and on the inner surface side of the filter, the tip of the filter protruding from the end of the support in the feeding direction can be guided toward the holding part. A guide part is provided,
The guide part has at least one thin-walled thin part in the width direction of the filter viewed from the feed direction,
An air conditioning apparatus characterized in that a ventilation space through which the air introduced from the introduction port can pass is provided on a side of the thin portion.

Preferably, as described in claim 2, the cleaning unit has a brush that contacts the surface of the filter, and a receiving part that can hold the filter together with the brush,
The guide portion is provided along the edge of the receiving portion on the filter introduction side.

Preferably, the guide portion is bent or curved in a direction away from the introduction port toward the distal end.

As described in claim 4, preferably, when viewed from the direction in which the filter is fed, both ends of the filter are supported by the support, and the thin-walled portion extends from the introduction port in the width direction of the filter. located in the middle of

In the invention according to claim 1, immediately before the inlet of the holding part that temporarily holds the cleaned filter, the tip of the filter protruding from the end of the support in the feeding direction is directed toward the holding part. A guide part is provided which can be guided.

Therefore, when the support is attached to the case, the tip of the filter protruding from the support comes into contact with the guide portion and is guided toward the holding portion. The guide part also has the function of pushing the tip when it comes into contact with the tip.

In addition, this guide portion has a thin-walled portion in the width direction of the filter as seen from the feeding direction. If the thin portion is not provided and only a planar member is provided in the width direction of the filter, there is a risk of blocking the flow of air introduced from the inlet. On the other hand, if the thin portion is provided, a ventilation space through which the air introduced from the introduction port can pass is provided on the side of the thin portion. Therefore, the air flow is not blocked. As described above, the guide portion can guide the tip portion without interrupting the flow of the air introduced from the introduction port.

In the invention according to claim 2, the cleaning unit has a receiving part capable of sandwiching the filter together with the brush. The guide portion is provided along the edge of the receiving surface on the filter introduction side. By using the receiving part, the guide part can be easily added inside the case.

In the invention according to claim 3, the guide part is bent or curved in a direction away from the inlet as it goes toward the tip. Even if the tip of the filter protrudes further from the support, the tip is more likely to come into contact with the guide. The filter can be reliably guided toward the holding portion.

In the invention according to claim 4, both ends of the filter are supported by the supports. Therefore, a filter that is supported at both ends is most likely to bend near the center of the tip of the filter. The thinned portion comes into contact with the most flexible portion of the filter and can reliably guide the filter toward the holding 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. 3 is an enlarged view of the vicinity of the cleaning unit of the air conditioner shown in FIG. 2. FIG. It is a figure explaining attachment of the support body with respect to a case. 5 is an enlarged view of the thin portion shown in FIG. 4; FIG. FIG. 4 is a working diagram of the present invention; FIG. 10 is a diagram illustrating another example of the support; It is a figure explaining the basic composition of a prior art.

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 according to an embodiment. This air conditioner 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 perform the above-mentioned operations, a blower 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 the heat exchangers 23 to prevent dust from entering the case 11 A filter unit 30, a cleaning unit 40 for cleaning the filter 31 provided in the filter unit 30, a holding part 12 for temporarily holding the filter 31 cleaned by the cleaning unit 40, and a case 11 attached to collect dust. and a metal support plate 14 provided on the rear surface of the case 11 and fixed to the wall Wa.

Please refer to FIG. 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 end portion 15 a of the wall portion 15 provided in front of the holding portion 12 . The receiving portion 42 extends forward and upward from the upper end portion 15 a of the wall portion 15 .

The filter unit 30 has a filter gear 32 (driving mechanism 32 ) that moves the filter 31 . When the filter gear 32 is rotated by the drive gear 16 provided on the case 11, the filter 31 is sent rearward (toward the cleaning unit 40 side).

The inner surface 31 a of the filter 31 fed is supported by the receiving portion 42 . The outer surface 31 b of the filter 31 contacts the tip of the brush 41 . The rotating brush 41 picks up dust adhering to the outer surface 31 b 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 support 50 is a molded resin product and is attachable to and detachable from the case 11 . The support 50 extends in the attachment/detachment direction of the filter unit 30 (see arrow (1)) and supports left and right filter ends 33, 33 of the filter 31 (both ends 33, 33 of the filter 31). 51 , 51 , left and right gear support portions 52 , 52 provided at the rear ends (ends in the sending direction) of the rail portions 51 , 51 and rotatably supporting the left and right filter gears 32 , 32 ; Left and right brush support portions 53, 53) that support the brush 41 (see FIG. 3).

The right gear support portion 52 has a right side surface 54 along the direction in which the filter unit 30 is attached and detached. A protrusion 56 is provided on the right side surface 54 . The left gear support portion 52 is bilaterally symmetrical to the right gear support portion. Description is omitted. Left and right guide grooves 18, 18 are provided in left and right inner wall surfaces 17, 17 of the case 11, respectively.

Please refer to FIGS. Between the left and right inner wall surfaces 17 , 17 , a guide portion 60 is provided just before the entrance 12 a of the holding portion 12 . The guide portion 60 is formed integrally with the receiving portion 42 and provided along the edge portion 42a of the receiving portion 42 on the front side (filter introduction side).

Please refer to FIGS. 3, 4 and 5. FIG. Specifically, the guide portion 60 includes a first guide surface 61 extending in the left-right direction (filter width direction as seen from the feeding direction indicated by the arrow (1)) and an edge protruding from the first guide surface 61. It has at least one, for example, four thin-walled first thin-walled portions 71 to fourth thin-walled portions 74 . The first thin portion 71 to the fourth thin portion 74 have the same configuration. The second thin portion 72 will be described below as an example.

The second thin portion 72 has a second guide surface 72 a that is continuous with the first guide surface 61 . The second guide surface 72a is inclined away from the introduction port 21 with the tip 61a of the first guide surface 61 (edge of the first guide surface 61) as a base point. In addition, the guide portion 60 may be bent or curved in a direction away from the introduction port 21 toward the distal end 60a of the guide portion 60 as a whole.

Ventilation spaces 75 , 75 through which the air introduced from the introduction port 21 can pass are provided on the sides of the second thin portion 72 .

Ribs 62 are provided on the upper end portion 15 a of the wall portion 15 , the receiving portion 42 and the first guide surface 61 . The second thin portion 72 can also be said to be a portion where the rib 62 protrudes forward.

The second thin portion 72 is positioned in the center of the introduction port 21 in the left-right direction (the width direction of the filter 31). That is, the dimension L1 from the left inner wall surface 17 to the second thin portion 72 and the dimension L2 from the right inner wall surface 17 to the second thin portion 72 are equal. The width L of filter 31 is equal to the sum of dimension L1 and dimension L2.

Next, the effects of the embodiment will be described.

Please refer to FIG. Attachment of the filter unit 30 (support body 50) to the case 11 in a state where the tip portion 34 of the filter 31 protrudes will be described.

Please refer to FIG. A guide portion 60 capable of guiding the tip portion 34 of the filter 31 toward the holding portion 12 is provided immediately before the inlet 12 a of the holding portion 12 . The guide portion 60 has a first guide surface 61 and a second guide surface 72 a (upper surface of the second thin portion 72 ) that is continuous with the first guide surface 61 . Therefore, when the filter unit 30 is attached to the case 11, the tip portion 34 of the filter 31 contacts the first guide surface 61 or the second guide surface 72a as indicated by arrow (3), and the holding portion 12 is guided towards the entrance 12a.

As indicated by arrows (4), the first guide surface 61 and the second guide surface 72 also have the action of pushing the tip portion 34 into the support body 50 when they come into contact with the tip portion 34 .

4 and 5 are also referred to. In addition, the guide portion 60 has a first thin portion 71 to a fourth thin portion 74 in the width direction of the filter 31 viewed from the feeding direction. If the first thin portion 71 to the fourth thin portion 74 are not provided and the first guide surface 61 is extended to the tip positions of the first thin portion 71 to the fourth thin portion 74, , may block the flow of air drawn in by the fan 22 (see FIG. 2).

On the other hand, if the first thin-walled portion 71 to the fourth thin-walled portion 74 are provided, for example, on the side of the second thin-walled portion 72, there is a ventilation space 75 through which the air introduced from the inlet 21 can pass. 75 is provided. As described above, the guide portion 60 can guide the tip portion 34 of the filter 31 without interrupting the flow of air introduced from the inlet 21 .

In addition, the guide portion 60 is provided along the front edge portion 42 a of the receiving portion 42 . By using the receiving portion 42, the guide portion 60 can be provided more easily.

In addition, the second guide surface 72a is inclined away from the introduction port 21 with the tip 60a of the first guide surface 61 as a base point. Therefore, even when the amount of protrusion of the tip portion 34 of the filter 31 is large, the tip portion 34 easily comes into contact with the second guide surface 72a. The filter 31 can be reliably guided toward the holding portion 12 .

Please refer to FIG. The second thin portion 72 is positioned at the center of the inlet 21 in the width direction of the filter 31 . Therefore, the second thin portion 72 is likely to come into contact with the portion of the filter 31 that is most flexible, so that the filter 31 can be reliably guided toward the holding portion 12 .

Please refer to FIG. Another embodiment of the filter unit 30 will now be described. The configuration of the support 50A in this filter unit 30A differs from that of the support 50. As shown in FIG. The rest of the configuration is the same as that of the filter unit 30, so the reference numerals are used and the description is omitted. The support 50A of the filter unit 30A has an introduction portion 57 extending between the ends of the left and right rail portions 51, 51 on the filter introduction side.

Refer to FIG. 8(b). The introduction portion 57 has a base portion 58 that supports the filter 31 when the filter 31 is in a predetermined mounting position with respect to the support 50, and an extension portion 59 that extends along the filter 31 from the base portion 58. ing.

A convex portion 59 a protruding toward the filter 31 is provided on a surface of the extension portion 59 facing the filter 31 . When the filter 31 is in a predetermined mounting position, the projection 59a sandwiches the distal end 39 of the filter 31 together with the base 58. As shown in FIG.

Therefore, when the filter 31 moves in the feeding direction as indicated by arrow (5), the distal end 39 of the filter 31 needs to climb over the projection 59a. Movement of the filter 31 in the feeding direction is restricted. As a result, protrusion of the tip portion 34 of the filter 31 can be suppressed.

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 12... Holding part 12a... Inlet 15... Wall part 21... Inlet 30... Filter unit 31... Filter 32... Filter gear 33... Filter end (both ends of filter)
34... Tip part 40... Cleaning unit 41... Brush 42... Receiving part 42a... Edge part 50... Support body 51... Rail part 57... Introduction part 58... Base part 59... Extension part 59a... Convex part 60... Guide part 60a... Tip 61 First guide surface 61a Front end 62 Rib 71 First thin portion 72 Second thin portion 72a Second guide surface 73 Third thin portion 74 Fourth thin portion 75 ventilation space

Claims (4)

A case provided with an inlet for introducing air, a filter for preventing dust from entering the case, a support body that supports the filter so that it can be taken in and out and that is attachable to and detachable from the case, and the support. An air conditioner having a drive mechanism for sending the filter from the body, a cleaning unit for cleaning the sent filter, and a holding section for temporarily holding the filter cleaned by the cleaning unit,
Immediately before the inlet of the holding part and on the inner surface side of the filter, the tip of the filter protruding from the end of the support in the feeding direction can be guided toward the holding part. A guide part is provided,
The guide part has at least one thin-walled thin part in the width direction of the filter viewed from the feed direction,
An air conditioner, wherein a ventilation space through which the air introduced from the introduction port can pass is provided on the side of the thin portion. The cleaning unit has a brush that contacts the surface of the filter and a receiving part that can hold the filter together with the brush,
2. The air conditioner according to claim 1, wherein the guide portion is provided along an edge of the receiving portion on the filter introduction side. 3. The air conditioner according to claim 1, wherein the guide portion is bent or curved in a direction away from the introduction port toward the tip. Both ends of the filter are supported by the supports when viewed from the direction in which the filter is fed, and the thin portion is positioned at the center of the introduction port in the width direction of the filter. The air conditioner according to any one of claims 1 to 3.

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