JP7268545B2 - indoor unit of air conditioner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of a ceiling-suspended air conditioner that is suspended from an indoor ceiling.

2. Description of the Related Art As an indoor unit of a ceiling-suspended air conditioner, for example, a device disclosed in Patent Document 1 is known.
The indoor unit of Patent Document 1 has a heat exchanger and a blower arranged in a casing. The casing is fixed to the ceiling surface and has a rectangular top plate that extends along the interior ceiling, and a pair of side brackets that extend from the left and right ends toward the floor when the longitudinal direction of the top plate is taken as the left-right direction. ing.
A plate-shaped top panel extending in the left-right direction is arranged in front of the top plate when the short direction of the top plate is defined as the front-rear direction, and a pair of side panels covering the pair of side brackets is detachably attached. is attached to the The pair of side panels are detachably attached to the left side bracket and the right side bracket while their ends abut against the ends of the top panel.

JP 2014-173760 A

By the way, the larger the ceiling-suspended indoor unit, the longer the width dimension, which impairs the appearance. In this case, devising the design of the casing of the indoor unit (for example, adopting a structure that provides a curved shape that makes both sides of the casing appear to be gradually thinner) makes the width of the indoor unit appear shorter. It is conceivable to However, in the case where both sides of the indoor unit described in Patent Literature 1 are provided with rounded shapes, the problem is how to maintain the strength of the complicated-shaped casing.
Therefore, the present invention has been made to solve such problems, and it is possible to secure the strength of the casing while improving the design by providing a large rounded shape on both sides of the front end of the indoor unit. An object of the present invention is to provide an indoor unit for a ceiling-suspended air conditioner.

In order to achieve the above object, an indoor unit of an air conditioner according to one aspect of the present invention includes a rectangular upper plate fixed to a ceiling surface and extending along the indoor ceiling, and a longitudinal direction of the upper plate being the left-right direction. This indoor unit of an air conditioner has a heat exchanger and a blower fan arranged in a casing provided with a pair of side brackets respectively standing down from left and right ends toward a floor surface. In the indoor unit, a plate-like top panel extending in the left-right direction is arranged in front of the top plate when the short direction of the top plate is taken as the front-rear direction, and a pair of side panels covering the pair of side brackets is detachable. freely worn. Here, a pair of connecting portions are provided for connecting the left-right end portions of the top panel and the pair of side brackets, respectively, and the top panel side end portions of the pair of connecting portions are the side bracket side ends of the pair of connecting portions. It is placed closer to the ceiling surface than the part.

According to the indoor unit of the air conditioner according to the present invention, it is possible to secure the strength of the casing while enhancing the design by providing a large rounded shape on both sides of the front end of the indoor unit.

1 is a perspective view showing an indoor unit of a ceiling-suspended air conditioner according to an embodiment of the present invention; FIG. It is a figure which shows sectional drawing which cut|disconnected the indoor unit shown in FIG. 1 along the front-back direction. It is a figure which shows the internal structure which removed the right side panel in the front right side of the indoor unit shown in FIG. It is the figure which showed the external appearance of the front right side of the indoor unit shown in FIG. 1 by planar view.

Next, embodiments of the present invention will be described with reference to the drawings. The embodiments shown below exemplify apparatuses and methods for embodying the technical idea of the present invention. It is not specific to the following. Various modifications can be made to the technical idea of the present invention within the technical scope defined by the claims.
In addition, terms indicating directions such as "upper", "lower", "left", "right", "front", "back", etc. described in the following description refer to the directions in the accompanying drawings. used.

[Regarding the configuration of the indoor unit]
As shown in FIG. 1, an indoor unit 1 of a ceiling-suspended air conditioner according to an embodiment of the present invention is suspended from the indoor ceiling by a plurality of hanging rods 2 . This indoor unit 1 includes a blower fan 4 , a heat exchanger 5 , and a drain pan 6 in a casing 3 as shown in FIG. 2 . The casing 3 includes a substantially rectangular upper plate 7 extending in the front-rear direction and the left-right direction and having lower ends of the plurality of suspension rods 2 connected thereto, and a substantially rectangular plate extending downward from the rear end of the upper plate 7 . a rear plate 8; a substantially rectangular plate-shaped left side bracket 9a extending downward so as to cover the left ends of the top plate 7 and the rear plate 8; A plate-shaped right side bracket 9b (see FIG. 3) is provided, and the lower side is open.

The blower fan 4 is arranged near the rear surface in the casing 3 . Also, the heat exchanger 5 is arranged near the front surface in the casing 3 . The drain pan 6 is arranged below the heat exchanger 5 so as to cover the heat exchanger 5 and partially close the opening below the casing 3 . A lower surface of the drain pan 6 is covered with a lower surface panel 10 . As shown in FIGS. 1 and 2, the lower surface of the drain pan 6 and the lower surface panel 10 are curved with a predetermined curvature so as to continuously rise from the rear to the front.
An opening below the blower fan 4 and below the casing 3 not blocked by the drain pan 6 forms a suction port 11, and a grill 12 having a filter (not shown) is attached to the suction port 11. .

A top panel 13 formed of an elongated decorative sheet metal elongated in the left-right direction is arranged at the front end edge of the top plate 7 of the casing 3 . It is fixed to the front edge, and the left-right direction end of the top panel 13 is fixed to the left side bracket 9a and the right side bracket 9b. A left side panel 14a made of resin molding material is detachably attached to the left side bracket 9a while covering the left side end of the left side bracket 9a and the top panel 13. The left side panel 14a is attached to the right side bracket 9b. A right side panel 14b made of a resin molding material is detachably attached to cover the right side bracket 9b and the right end of the top panel 13. As shown in FIG.
As shown in FIG. 1 and FIG. 4 showing the appearance of the front right side of the indoor unit 1 in plan view, the front ends of the left side panel 14a and the right side panel 14b are smoothly curved inward in the left-right direction, are bent to face the upper surface and connected to the left and right ends of the top panel 13 .

As shown in FIGS. 1 and 2, a blowout port 15 is formed in front of the drain pan 6 . The blowout port 15 is elongated in the left-right direction along the tip (front edge) of the drain pan 6 and the top panel 13 . The upper edge of the air outlet 15 is formed by a first air outlet forming member 16 attached to the top panel 13 and elongated in the left-right direction and linearly extending. Further, as shown in FIG. 1, the left end and part of the upper edge of the outlet 15 form a second outlet that is attached to the left side panel 14a and that extends linearly in the vertical direction and the upper end is curved inward. It is formed by member 17 . Further, as shown in FIG. 1, the right end and part of the upper edge of the outlet 15 form a third outlet that is attached to the right side panel 14b and that extends linearly in the vertical direction and the upper end is curved inward. It is formed by member 18 . A lower end portion of the blow-out port 15 is formed by a tip portion of a drain pan 6 extending linearly in the left-right direction.

The outlet 15 is opened and closed by a wind direction plate 19, as shown in FIGS. As shown in FIG. 2 , a plurality of shafts 20 are formed on the rear surface of the wind direction plate 19 . By rotating the lower end forward and the upper end rearward about the shaft portion 20, the blowout port 15 is opened. The outlet 15 is closed by rotating in the direction.
A shaft portion 20 provided on the rear surface of the right end portion of the wind direction plate 19 is connected to a rotating shaft of a drive motor 21 provided on the right side bracket 9b shown in FIG. The opening/closing operation of the outlet 15 is performed by rotating.

[Regarding the structure in which the top panel is fixed to the casing]
Next, the structure in which the top panel 13 is fixed to the top plate 7 of the casing 3, the left side bracket 9a and the right side bracket 9b will be described with reference to FIGS. 3 and 4. FIG.
The top panel 13 includes a rectangular plate-like panel body 22, a plurality of upper plate fixing pieces 24 projecting from one side 23 in the width direction of the panel body 22 and formed at predetermined intervals in the longitudinal direction, and the panel body 22. A panel edge portion 26 bent at right angles from the other side 25 in the width direction, and a panel edge portion 26 extending at a predetermined acute angle and a side bent at a right angle from the panel body 22 as a plane that is continuous with the front end of the connecting metal fixture fixing part 27 with a small area and perpendicular to the other side 25 in the width direction. and a panel front end facing portion 28 . Also, although not shown, a connecting fitting fixing portion 27 extending at a predetermined acute angle θ with respect to one side 23 in the width direction and bent at a right angle from the panel main body 22 is provided at the left end of the top panel 13 . A side panel front end facing portion 28 is formed.

The top panel 13 is arranged such that a top panel corner portion 30 formed by crossing one widthwise side 23 of the right end portion and the connecting fitting fixing portion 27 is opposed to the front end side upper portion 9b1 of the right side bracket 9b. do. Also, the top panel corner 30 formed by crossing the widthwise one side 23 of the left end and the connecting fitting fixing portion 27 of the left end of the top panel 13 is also formed by the upper front end of the left side bracket 9a ( not shown).
Then, one side 23 in the width direction of the panel body 22 is arranged along the front edge of the top plate 7 of the casing 3, and a plurality of top plate fixing pieces 24 superimposed on the front edge of the top plate 7 are fixed with screws. fixed. As a result, the top panel 13 is arranged in such a manner that the coupling fitting fixing portion 27 at the left end of the top panel 13 faces left front, and the coupling fitting fixing portion 27 at the right end faces right front.

A connecting metal fitting 32 as a pair of connecting parts for connecting the top panel 13 and the pair of side brackets 9a and 9b is fixed between the connecting metal fixing part 27 and the right side bracket 9b at the right end. As shown in FIG. 3, the connecting metal fitting 32 includes a top panel fixing plate 32a as a top panel side end portion fixed by a screw in a state of surface contact with a connecting metal fitting fixing portion 27 at the right end portion of the top panel 13. , a bracket fixing plate 32b as a side bracket side end fixed with a screw in a state of surface contact with the right side bracket 9b, and a metal plate of a predetermined shape connected between the top panel fixing plate 32a and the bracket fixing plate 32b. and a fitting body 32c.
Here, the connecting metal fixture 32 fixed between the connecting metal fixing part 27 at the right end and the right side bracket 9b is arranged at a position where the top panel fixing plate 32a is closer to the ceiling surface than the bracket fixing plate 32b. there is

Also, although not shown, a connecting metal fitting 32 having the same shape is fixed between the connecting metal fitting fixing portion 27 at the left end portion and the left side bracket 9a. This connecting metal fitting 32 is also attached to a top panel fixing plate 32a as a top panel side end portion fixed by a screw in a state of surface contact with a connecting metal fitting fixing surface 27 of the left end portion of the top panel 13, and to the left side bracket 9b. A bracket fixing plate 32b as a side bracket side end fixed by a screw in a state of surface contact, and a metal fitting main body 32c connected as a metal plate of a predetermined shape between the top panel fixing plate 30a and the bracket fixing plate 30b. , is equipped with
Here, the connecting metal fixture 32 fixed between the connecting metal fixing part 27 at the left end and the left side bracket 9a is also arranged at a position where the top panel fixing plate 32a is closer to the ceiling surface than the bracket fixing plate 32b. .

[Regarding the structure in which the left and right side panels are attached to the casing]
Next, the right side panel 14b detachably attached to the right side bracket 9b of the casing 3 will be described with reference to FIG.
As described above, the right side panel 14b is formed such that the side surface on the front end side of the right side panel 14b smoothly curves leftward as it goes toward the front end and is bent so that the side surface faces upward. An opening is formed that opens toward the connecting fitting fixing portion 27 (and the third outlet forming member 18) of the panel 13. As shown in FIG. At the opening edge of this opening, a butting edge 33 is formed that extends linearly while being inclined to the left as it goes toward the front end. A sharpness preventing portion 34 is formed in which there is no .

When the right side panel 14b is attached to the right side bracket 9b, the top of the top panel 13 is attached to the top of the connecting fitting fixing portion 27 which is formed at the right end of the top panel 13 and is inclined leftward toward the front end. The matching edges 33 of the right side panel 14b arranged so as to cover the right side are matched so as to be flush with each other, and the sharpening prevention part 34 is placed facing the side panel leading end facing part 28 of the top panel 13. - 特許庁

Also, although not shown, the left side panel 14a detachably attached to the left side bracket 9a of the casing 3 also has a side surface on the front end side smoothly curved rightward toward the front end, and the side surface faces upward. The left side panel 14a is formed with an opening that opens toward the connecting fitting fixing portion 27 (and the second outlet forming member 17) on the left side of the top panel 13 of the left side panel 14a. . At the opening edge of the opening, a matching edge 33 is formed that extends linearly while being inclined to the right as it goes toward the front end. A sharp-point preventing portion 34 is formed without an acute-angled portion. When the left side panel 14a is attached to the left side bracket 9a, the top panel 13 is attached to the top of the connecting fitting fixing portion 27 which is formed at the left end of the top panel 13 and slopes rightward toward the front end. The abutment edge 33 of the right side panel 14b arranged to cover the left side of the top panel 14b is abutted so as to be flush with each other, and the sharpening prevention portion 34 is arranged to face the side panel tip facing portion 28 of the top panel 13. .

[About the effects of the indoor unit]
Next, the effects of the indoor unit 1 of the ceiling-suspended air conditioner of this embodiment will be described.
In the indoor unit 1 of the present embodiment, the left side panel 14a and the right side panel 14b detachably attached to the left side bracket 9a and the right side bracket 9b of the casing 3 have side surfaces on the front end side extending in the left-right direction toward the front end. It curves smoothly inward and is formed so that the side surface is bent upward, and the width dimension of the indoor unit 1 looks short, so that the design of the indoor unit 1 can be improved.

Also, the fixing of the top panel 13 to the front end edge of the top plate 7 of the casing 3 is performed by fixing the width direction side 23 of the panel main body 22 of the top panel 13 to the top plate 7 of the casing 3 . A plurality of top plate fixing pieces 24 arranged along the front edge and superimposed on the front edge of the top plate 7 are integrated to fix the top plate 7 . Also, connecting metal fixing portions 27 formed at the left-right (longitudinal) ends of the top panel 13 are fixed to the left side bracket 9 a and the right side bracket 9 b via connecting metal fittings 32 .

Here, the connecting metal fixture 32 fixed between the connecting metal fixing part 27 at the right end and the right side bracket 9b is arranged at a position where the top panel fixing plate 32a is closer to the ceiling surface than the bracket fixing plate 32b. The connecting metal fixture 32 fixed between the connecting metal fixing part 27 at the left end and the left side bracket 9a is also arranged at a position where the top panel fixing plate 32a is closer to the ceiling surface than the bracket fixing plate 32b. As a result, the side surfaces of the left side panel 14a and the right side panel 14b on the front end side smoothly curve inward in the left-right direction toward the front end, and the side surfaces can be bent upward. 1 can be improved in design.

In addition, since the top panel corners 30 of the connecting fitting fixing portions 27 are arranged close to the upper front ends of the left side bracket 9a and the right side bracket 9b, the dimension of the top panel 13 in the left-right direction is not shortened. The length of the metal fitting main body 32c of the connecting metal fitting 32 (the distance between the top panel fixing plate 32a and the bracket fixing plate 32b) is not long, and the bending rigidity and torsional rigidity of the metal fitting main body 32c are sufficiently ensured. As a result, the left-right (longitudinal) end portions of the top panel 13 are fixed to the left side bracket 9a and the right side bracket 9b via the connecting fittings 32 without causing looseness.
Therefore, the top panel 13 can be secured to the top plate 7 of the casing, the left side bracket 9a and the right side bracket 9b with sufficient mounting strength.

Further, the connecting fitting fixing portion 27 of the top panel 13 extends at a predetermined acute angle .theta. The shape of the top panel fixing plate 32a of the connecting metal fitting 32 fixed to the connecting metal fitting fixing portion 27 can also be enlarged, and the bending rigidity and torsional rigidity of the metal fitting main body 32c can be enhanced.

The left side panel 14a and the right side panel 14b are attached to the left side bracket 9a and the right side bracket 9b in a state in which the connecting fitting fixing portion 27 formed at the left-right end portion of the top panel 13 and the matching edge portion 33 are butted against each other. When it is detachably attached to the body, the seam between the connecting fitting fixing portion 27 and the abutting edge portion 33 extends inwardly in the left-right direction toward the front end, so that the seam extends in the front-back direction. The gap between the seams is less conspicuous compared to the conventional indoor unit that uses the air conditioner, and deterioration of the appearance quality can be prevented.

Furthermore, since the sharpening prevention portion 34 is formed at a position continuing from the butted edge portion 33 of the left side panel 14a and the right side panel 14b to the front end, the ends of the left side panel 14a and the right side panel 14b are not so high. Since there is no need to form them with precision, the manufacturing cost can be reduced, and work safety can be improved when assembling the left side panel 14a and the right side panel 14b.
Although the embodiment of the present invention has been described above, the present invention is not limited to this and can be modified and improved in various ways.

1 Indoor unit 2 Hanging rod 3 Casing 4 Blower fan 5 Heat exchanger 6 Drain pan 7 Top plate 8 Rear plate 9a Left side bracket 9b Right side bracket 9b1 Front end upper part 10 of right side bracket Bottom panel 11 Suction port 12 Grille 13 Top panel 14a Left side panel 14b Right side panel 15 Air outlet 16 First outlet forming member 17 Second outlet forming member 18 Third outlet forming member 19 Wind direction plate 20 Shaft 21 Drive motor 22 Panel main body 23 Panel main body in the width direction One side 24 Upper surface plate fixing piece 25 Other side 26 in the width direction of the panel body Panel edge 27 Connecting metal fitting fixing part 28 Side panel tip facing part 30 Top panel corner 32 Connecting metal fitting (connecting part)
32a Top panel fixing plate (top panel side end)
32b Bracket fixing plate (side bracket side end)
32c Metal fitting main body 33 Butt edge 34 Sharp prevention part θ Predetermined acute angle

Claims (3)

It is provided with a rectangular upper plate fixed to the ceiling surface and along the indoor ceiling, and a pair of side brackets respectively hanging from the left and right ends toward the floor surface side when the longitudinal direction of the upper plate is the left-right direction. A heat exchanger and a blower fan are arranged in the casing,
A plate-like top panel extending in the left-right direction is arranged in front of the top plate when the short direction of the top plate is taken as the front-rear direction, and a pair of side panels covering the pair of side brackets are detachably attached. An indoor unit of an air conditioner that is
A pair of connecting portions for connecting the left-right direction end portions of the top panel and the pair of side brackets, respectively, wherein the top panel side end portions of the pair of connecting portions are the side bracket side ends of the pair of connecting portions. An indoor unit of an air conditioner, characterized in that it is arranged at a position closer to a ceiling surface than a part. The pair of side panels are joined to the top of the pair of connecting parts of the top panel in a state where the matching edges formed at the ends of the pair of side panels are flush with each other. 2. The indoor unit of an air conditioner according to claim 1, wherein said side brackets are detachably attached to the respective side brackets. 3. The indoor unit of an air conditioner according to claim 2, wherein the end portions of the pair of side panels located forward of the butted edge portions are formed as sharpening prevention portions having no acute-angled portions.

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