JP2022108309A - Air conditioner - Google Patents

Abstract

To provide an inexpensive air conditioner.SOLUTION: An air conditioner 10 includes: a case 30 fixed to a wall; and a filter 27 detachably provided at the case so as to suppress entry of dust into the case. The case 30 includes: guide parts 44, 44 formed along a rear surface on left and right end parts of the filter 27 and for guiding the filter 27 when attaching/detaching the filter 27; a vertical crosspiece part 45 extending in a frontward/backward direction inside introduction opening parts 42, 42 so as to reinforce the introduction opening parts 42, 42, and positioned above the filter 27; and a lateral crosspiece part 46 extending in a left-to-right direction inside the introduction opening parts 42, 42 so as to cross the vertical crosspiece part 45, and positioned above the filter 27. In the case where the case 30 is viewed from above, the vertical crosspiece part 45 and the lateral crosspiece part 46 are formed between the left and right guide parts 44, 44.SELECTED DRAWING: Figure 3

Description

The present invention relates to air conditioners with filters.

Many air conditioners are provided with a filter to prevent dust from entering the case from the outside. BACKGROUND ART Patent Document 1 discloses a technique related to an air conditioner having a filter.

As shown in FIG. 6 of Patent Document 1, the air conditioner has a front grill integrally formed with a support frame for guiding a filter. The front grille is a part that forms part of the case.

An operator who cleans the filter can remove the filter from the case or attach the filter to the case by moving the filter along the support frame. In other words, the support frame serves as a guide for the filter when removing or attaching the filter.

In general, the case of an air conditioner is made of a resin molded product. By integrally forming the guide portion for guiding the filter and the like with the main body of the case, it is possible to reduce the number of parts, which is preferable.

Japanese Patent No. 3006590

As described above, since the case is generally formed by resin molding, it is preferable that the cost of the mold is low because it contributes to reducing the manufacturing cost of the air conditioner.

An object of the present invention is to provide an inexpensive air conditioner.

The present disclosure will be described below.

According to the present disclosure, it is fixed to the wall, and has an introduction opening for introducing air on the top surface, and a blowing opening for blowing the air introduced from the introduction opening into the room on the front bottom surface. a case with an open and
and a filter that covers the introduction opening and is detachably attached to the case in order to suppress the entry of dust into the case,
The case includes guide portions formed along the rear surface of the left and right ends of the filter for guiding the filter when the filter is attached and detached, and a guide portion extending in the front-rear direction inside the introduction opening to reinforce the introduction opening. a vertical bar portion extending above the filter, and a horizontal bar portion extending in the left-right direction inside the introduction opening and positioned above the filter so as to intersect the vertical bar portion;
The air conditioner is provided, wherein the vertical beam portion and the horizontal beam portion are formed between the left and right guide portions when the case is viewed from above.

According to the present invention, an inexpensive air conditioner can be provided.

1 is a perspective view of an air conditioner according to an embodiment; FIG. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1; 2 is a plan view of the air conditioner shown in FIG. 1 with the front panel and right filter removed and the right side portion enlarged; FIG. 4A is a cross-sectional view taken along the line 4A-4A of FIG. 3, and FIG. 4B is a diagram explaining a method of molding the portion of FIG. 4A. 5A is a view of a guide portion of an air conditioner according to a comparative example viewed from above, FIG. 5B is a view explaining a molding method of a portion corresponding to the 5B-5B line cross section of FIG. 5A, and FIG. 5C is a view. FIG. 5D, which is an enlarged view of the 5C portion of 3, is a diagram for explaining the molding method of the portion corresponding to the 5D-5D cross section of FIG. 5C.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the description, left and right refer to the left and right of the air conditioner as viewed from the front, front refers to the direction away from the wall into the room, and rear refers to the direction from the room toward the wall. In the figure, Fr indicates front, Rr indicates rear, Le indicates left, Ri indicates right, Up indicates upper, and Dn indicates lower. The form shown in the accompanying drawings is an example of the present invention, and the present invention is not limited to the form.

<Example>
Please refer to FIG. FIG. 1 shows an indoor unit 20 of the air conditioner 10. As shown in FIG. In general, the air conditioner 10 includes an indoor unit 20 that is fixed to a wall Wa indoors, an outdoor unit that is placed outdoors and adjusts the temperature of the refrigerant to an appropriate temperature, and an internal unit that connects the indoor unit 20 and the outdoor unit. and a pipe through which a refrigerant flows. In the present invention, a well-known outdoor unit and piping can be used, and thus the description thereof is omitted.

The air conditioner 10 can switch between a cooling mode for lowering the indoor temperature, a heating mode for raising the indoor temperature, and a dehumidifying mode for lowering the indoor humidity, for example, according to the indoor temperature and humidity.

Also refer to FIG. The indoor unit 20 includes a plate-like support plate portion 21 fixed to the wall Wa, a case 22 supported by the support plate portion 21, and housed inside the case 22 so that the air in the room flows inside. A plurality of heat exchangers 23 that exchange heat with the refrigerant, a fan 24 that is rotatably provided below these heat exchangers 23 and blows air toward the room, and a case 22 that can be swung to the lower front portion. A louver 25 for adjusting the direction of blowing air, a front panel 26 provided above the louver 25 and swingably supported by the case 30, and a front panel 26 provided from the front to the upper part of the case 30. and a filter 27 that prevents dust from entering the case 30 .

The support plate portion 21 is configured by a single metal plate. The support plate portion 21 is formed into a predetermined shape by pressing a metal plate. The support plate portion 21 has an upper protruding portion 21a and a lower protruding portion 21b whose upper and lower ends are bent forward and protrude, respectively.

The case 30 has a rear case 31 supported by the support plate portion 21 and a front case 40 supported by the rear case 31 . Both the rear case 31 and the front case 40 are made of molded resin. A space is formed inside the case 30 by combining a rear case 31 with an open front surface and a front case 40 with an open rear surface.

The front panel 26 has an upper end fixed to the front case 40 and can swing upward at the lower end around the upper end. Further, the front panel 26 can be removed from the front case 40 when cleaning the filter 27 or the like. That is, the front panel 26 is swingably supported with respect to the front case 40 and is detachably attached to the front case 40 .

Please refer to FIG. FIG. 3 shows the front case 40 with the filter 27 only on the left side. Although the filter 27 is also provided on the right side of the front case 40, the right filter 27 is removed for explanation.

The filter 27 is detachably attached to the front case 40 . The filter 27 has a substantially rectangular filter frame 27a supported by the front case 40, and a net-like filter main body 27b provided inside the filter frame 27a. Intrusion of dust into the case 30 is suppressed by catching dust outside the case 30 on the mesh-shaped filter main body 27b.

Please refer to FIG. The rear case 31 has an upper engaging portion 31a engaged with the upper projecting portion 21a and a lower engaging portion 31b engaged with the lower projecting portion 21b. The rear case 31 is supported by the support plate portion 21 via an upper engaging portion 31a and a lower engaging portion 31b.

Also refer to FIG. The front case 40 includes a case main body 41 superimposed on the rear case 31, introduction openings 42, 42 opened in the upper surface 41u of the case main body 41 for introducing air, and the case main body 41. A blowing opening 43 for blowing the air introduced from the introduction openings 42, 42 into the room, and a blowing opening 43 formed along the back surface of the left and right ends of the filter frame 27a when the filter 27 is attached and detached. guide portions 44, 44 for guiding the filter 27; a vertical beam portion 45 extending in the longitudinal direction inside the introduction openings 42, 42 to reinforce the introduction openings 42, 42 and positioned above the filter 27; Horizontal beams 46 extending in the left-right direction inside the introduction openings 42, 42 so as to cross the vertical beams 45, and front ends of the introduction openings 42, 42 formed substantially parallel to the horizontal beams 46 are closed. and an open front end portion 47 extending in the left and right direction.

The introduction openings 42, 42 are formed at two locations on the left and right sides of the upper surface 41u of the case main body 41 and have a substantially rectangular shape.

The blower openings 43 are formed at one location on the left and right sides of the case main body 41 .

The guide portions 44 , 44 are generally rectangular portions elongated in the front-rear direction and formed to face the left and right ends of the introduction openings 42 , 42 , respectively. Further, the guide portions 44, 44 are formed below the upper surface 41u of the case main body portion 41 and are formed with an upward slope from the front to the rear.

Four vertical bars 45 are formed in each of the introduction openings 42 , 42 . The four vertical beams 45 are all formed between the left and right guides 44, 44 when viewed from above. The upper surface of the vertical rail portion 45 is approximately the same height as the upper surface 41u of the case main body portion 41, and the lower surface 45d of the vertical rail portion 45 is located above the guide portions 44, 44 and is positioned above the guide portions 44, 44. It is formed substantially parallel to the upper surface 44u. A lower surface 45 d of the vertical bar portion 45 is positioned above the filter 27 .

The horizontal beams 46 are formed in each of the introduction openings 42 , 42 , and extend left and right so as to connect approximately central portions of the vertical beams 45 . Both the left and right ends of the horizontal beam portion 46 are connected to the vertical beam portion 45 . Therefore, the crosspiece 46 is formed between the left and right guides 44, 44 with reference to the state viewed from above.

Please refer to FIGS. 3 and 4A. The opening front end portion 47 is formed in a beam shape so as to close the front ends of the introduction openings 42, 42, and has a substantially U-shaped upper surface. A rear surface of the opening front end portion 47 is formed along a parting line 48 formed in the case main body portion 41 . The parting line 48 is a line formed at a portion corresponding to the boundary between the two molds when the front case 40 is molded.

Parting line 48 will be described in detail with reference to FIGS. 4A and 4B. For example, the front case 40 includes a fixed mold 61 that is arranged in the front portion and does not move, a first movable mold 62 that can move in the front-rear direction with respect to the fixed mold 61, and a movable mold 62 that can move in the vertical direction with respect to the fixed mold 61. and a movable second movable mold 63 .

More specifically, molds 61 to 63 form cavities, and molten resin is poured into the cavities. After that, the front case 40 is formed by hardening the resin. At this time, the molten resin slightly enters the mating surfaces of the fixed mold 61 and the second movable mold 63 . The parting line 48 is formed by hardening the entered resin.

Although the details will be described later, the case 30 can be formed only by the simple molds 61 to 63 by forming only the opening front end portion 47 as the part formed over the left and right ends of the introduction openings 42, 42. .

See FIG. 5A. In the front case 140 according to the comparative example, horizontal bars 146 are formed across the introduction opening 142 on the left and right. For this reason, the end of the horizontal bar portion 146 overlaps the guide portion 144 above.

Also refer to FIG. 5B. In order to integrally form the guide portion 144 in accordance with the left and right end positions of the introduction opening portion 142, the first movable mold 162 that forms the inner surface of the front case 140 has to be removed. The first movable mold 162 needs to be formed with a sliding portion 162a that slides in the left-right direction perpendicular to the direction. Since the slide portion 162a is required, the first movable mold 162 is expensive, and the manufacturing cost of the air conditioner 110 is increased.

See FIGS. 3 and 5C. In the air conditioner 10 according to the embodiment, when the case 30 is viewed from above, the vertical bar portion 45 and the horizontal bar portion 46 are formed between the left and right guide portions 44 , 44 . That is, the vertical beam portion 45 and the horizontal beam portion 46 do not overlap above the guide portions 44 , 44 .

See FIGS. 5C and 5D. By adopting a configuration in which the vertical beam portion 45 and the horizontal beam portion 46 do not overlap above the guide portions 44, 44, it becomes unnecessary to provide the first movable die 62 with a slide portion (see FIG. 5B). Therefore, it is possible to reduce the cost of the mold required to manufacture the front case 40, and to provide the air conditioner 10 at a low cost.

Please refer to FIG. A lower surface 45 d of the vertical bar portion 45 is formed substantially parallel to upper surfaces 44 u of the guide portions 44 , 44 . As a result, the filter 27 can be guided by the lower surface 45d of the vertical bar portion 45 during attachment and detachment. By guiding the filter 27 from above and below, attachment and detachment can be further enhanced.

See FIGS. 3 and 4B. An opening front end portion 47 is formed along a parting line 48 . Only the front ends of the introduction openings 42 , 42 are formed with portions overlapping the guide portions 44 , 44 . Since the opening front end portion 47 is formed at the boundary between the two molds 61 and 63, no sliding portion (see FIG. 5B) is required. Therefore, it is possible to provide the air conditioner 10 at a low manufacturing cost while reinforcing the introduction openings 42 , 42 .

Although the air conditioner according to the present invention has a heating function and a dehumidifying function has been described as an example, the present invention is applicable to an air conditioner having only a cooling function, an air conditioner having only a dehumidifying function, and an air conditioner having no heating function. It is applicable even to an air conditioner having a cooling function and a dehumidifying function. That is, the present invention is not limited to the examples as long as the action and effects of the present invention are exhibited.

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

DESCRIPTION OF SYMBOLS 10... Air conditioner 27... Filter 30... Case 42... Introduction opening part 43... Blowing opening part 44... Guide part 45... Vertical bar part 46... Horizontal bar part 47... Opening front end part 48... Parting line Wa... Wall

Claims (3)

A case that is fixed to a wall, has an introduction opening for introducing air on the top surface, and has a blowing opening for blowing the air introduced from the introduction opening into the room on the front bottom surface. When,
and a filter that covers the introduction opening and is detachably attached to the case in order to suppress the entry of dust into the case,
The case includes guide portions formed along the rear surface of the left and right ends of the filter for guiding the filter when the filter is attached and detached, and a guide portion extending in the front-rear direction inside the introduction opening to reinforce the introduction opening. a vertical bar portion extending above the filter, and a horizontal bar portion extending in the left-right direction inside the introduction opening and positioned above the filter so as to intersect the vertical bar portion;
An air conditioner according to claim 1, wherein when the case is viewed from above, the vertical beam portion and the horizontal beam portion are formed between the left and right guide portions. 2. The air conditioner according to claim 1, wherein a lower surface of said vertical bar portion is formed substantially parallel to an upper surface of said guide portion. The case has a front parting line formed at a portion corresponding to a boundary between two molds during molding of the case, and a front end opened to the left and right so as to close the front end of the introduction opening. part extended,
3. The air conditioner according to claim 1, wherein said opening front end is formed along said parting line.

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