JP2011080626A - Indoor unit of air conditioner, and air conditioner including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor unit and the like of an air conditioner improved in safety and handling performance of an installation plate for installing an indoor unit body. <P>SOLUTION: In the indoor unit of the air conditioner having the indoor unit body 1 including an air distributing means 4 and a heat exchanger 3, sucking the air by the air distributing means 4, and exchanging heat and supplying the air by the heat exchanger 3, and the installation plate 10 mounted on an indoor wall surface to install the indoor unit body 1, the installation plate 10 is made of a plate by progressive die press, and final cutting planes 17b, 18b by the progressive die press, of the installation plate 10 are folded back to form cutting plane fold-back sections 17, 18. Adhesion bending is performed on the cutting plane fold-back sections 17, 18. The cutting plane fold-back sections 17, 18 by the progressive die press of the installation plate 10 are positioned at both longitudinal ends of the installation plate 10, and put inside with respect to both end edges 150, 160. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an indoor unit of an air conditioner and an air conditioner equipped with the indoor unit, and more specifically, an air conditioner with improved safety by folding back a final cut surface generated when a mounting plate is manufactured by a press. An indoor unit and an air conditioner provided with the same.

Conventionally, when a mounting plate of an air conditioner is molded by a single press, a flange is formed on the outer periphery of the mounting plate, and a folding is provided on the flange (see, for example, Patent Document 1).
However, in processing by a single press, it is necessary to manually remove the workpiece from the mold and transfer it for each process, resulting in a decrease in production efficiency and an increase in product unit price. The single press material is a sketch material, and the unit price of the material is higher than that of the hoop material used in the progressive press.

  For this reason, the installation plate of the air conditioner is molded by a progressive press. In the progressive press, multi-process processing is performed with the work piece being fastened to the hoop material when producing a sheet metal part with a large production quantity. (For example, refer to Patent Document 2).

Japanese Utility Model Publication No. 63-129136 (first page, FIG. 2) Japanese Patent Laid-Open No. 9-112948 (9th page, FIG. 7)

In the invention of Patent Document 2, a progressive press is used at the time of production of a sheet metal part, and a folding can be provided on the flange on the outer periphery of the installation plate. However, since the connection part of the workpiece is cut in the final process, it is cut into the installation plate. The surface remains as it is and has a cut-off shape. For this reason, an injury may be caused by the cutting part when the indoor unit is installed, or the power cord may come into contact with the cutting part and be damaged.
In order to prevent these injuries and damage to the cord, a protective tape is applied to the cut surface, but this does not provide sufficient safety and handling of the installation plate.

  The present invention has been made to solve the above-described problems. An indoor unit of an air conditioner in which the safety and handling of an installation plate for installing an indoor unit main body are improved, and air including the same. The purpose is to provide a harmony machine.

An indoor unit of an air conditioner according to the present invention includes a blower unit and a heat exchanger, an indoor unit main body that sucks air by the blower unit and exchanges heat with the heat exchanger and blows it out, and an indoor unit attached to an indoor wall surface An indoor unit of an air conditioner having a mounting plate for installing a main body,
The installation plate is formed from sheet metal by a progressive press, and the final cut surface of the installation plate by the progressive press is folded back.
Moreover, the air conditioner which concerns on this invention is equipped with said indoor unit.

  Since the installation plate of the indoor unit of the air conditioner is provided with a folded shape at the final cut surface generated at the time of manufacture, the safety and handling at the time of installation and operation of the indoor unit of the air conditioner can be improved.

It is sectional drawing of the indoor unit of the air conditioner which concerns on one embodiment of this invention. It is the perspective view which looked at the indoor unit of the air conditioner of FIG. 1 from the back side. It is the perspective view which looked at the installation board of the indoor unit of the air conditioner of FIG. 1 from the main body side. It is a front view which shows the layout of the installation board progressive press molding die which concerns on one embodiment of this invention. It is a front view which shows the layout of the installation board single shot press mold after the installation board progressive press molding of FIG. It is the front view which expanded the vicinity of the folding | turning part of the last cut surface of FIG.

  In FIG. 1, a main body (indoor unit main body) 1 of an indoor unit of an air conditioner is provided with a heat exchanger 3 and a blower 4 (blower means), which are supported by a casing 2 of the main body 1. Yes. The heat exchanger 3 and the blower 4 are disposed in the air path 5 of the main body 1, and a suction port 6 is provided on the upstream side of the air path 5, and an air outlet 7 is provided on the downstream side. . The blower 4 sucks air into the air passage 5 from the suction port 6, and blows out from the air outlet 7 after passing through the air passage 5. At this time, the air sucked into the air path 5 is heat-exchanged by the heat exchanger 3 to become cold air or hot air and blown out. A front panel 8 is provided at the front of the main body 1.

  As shown in FIG. 2, an installation plate 10 made of a rectangular sheet metal is provided on the back surface of the main body 1 of the indoor unit of the air conditioner. The installation plate 10 is provided with screws, nails, bolts on the indoor wall surface. The housing 2 of the main body 1 is supported by being fixed by, for example. The mounting plate 10 is provided with convex portions 11 inclined toward the main body 1 at three positions on the upper end. The convex portions 11 are engaged with the engaging portions 9 provided on the upper portion of the housing 2 (see FIG. 1), the main body 1 of the indoor unit is fixed to the wall. Note that the lower end portion of the installation plate 10 is bent toward the main body 1 to form a folded curved surface 12, and comes into contact with the inner bottom surface of the main body 1.

  As shown in FIG. 3, an upper flange 13 and a lower flange 14 are formed on the main body 1 side above and below the outer peripheral edge of the mounting plate 10, and folded portions 13 a and 14 a that are directed inward are provided. . Further, left and right flanges 15 and 16 directed toward the main body 1 are provided on the left and right sides of the outer peripheral edge of the mounting plate 10, and these flanges 15 and 16 are folded inward and bent tightly. The left and right flanges 15 and 16 are discontinuous in the vicinity of the central portion in the vertical direction, and folded portions 17 and 18 (hereinafter referred to as cut surface folded portions) of the final cut surface are provided in this portion.

  The cut surface folded portions 17 and 18 are formed by folding the final cut surfaces 17b and 18b (see F in FIG. 4) of the mounting plate 10 formed by a progressive press inwardly, and are formed by contact bending. Yes. Then, the cut surface folded portions 17 and 18 (both edge portions 170 and 180 of the cut surface folded portions 17 and 18) are formed to be driven inward from the both edge portions 150 and 160 of the mounting plate 10 (FIG. 5). FIG. 6).

The manufacturing method of the installation board 10 of the indoor unit of the air conditioner comprised as mentioned above is demonstrated.
The mounting plate 10 is manufactured by a press die and processed in steps A to F by a progressive press as shown in FIG. At this time, the workpiece 10a is conveyed while being connected to the workpiece support portion 10b by the connecting portions 17a and 18a, proceeds from the A step to the E step, and is separated from the workpiece support portion 10b in the F step which is the final step.
First, the pressing of the workpiece 10a is started in the A process, the left and right flange parts and the connecting portions 17a and 18a are formed in the B process, and the left and right flange parts are folded and tightly bent in the C process. The flanges 15 and 16 are formed. Further, in the steps D to E, the upper and lower flange portions are folded back to become the upper and lower flanges 13 and 14, and the folded portions 13 a and 14 a are formed on these flanges 13 and 14. Furthermore, the convex part 11 etc. which latch the upper part of the housing | casing 2 by F process are formed, and also the connection parts 17a and 18a are cut | disconnected and the final cut surfaces 17b and 18b are formed. Burrs are generated on the final cut surfaces 17b and 18b. In addition, you may provide multiple connection parts 17a and 18a so that it may not fall down at the time of the workpiece | work conveyance of a progressive press.

  Next, as shown in FIG. 5, the final cut surfaces 17b and 18b of the workpiece 10a are folded and tightly bent by a single press (step G), and the cut surface folded portions 17 and 18 are formed. As shown in FIG. 6, the cut surface folding portions 17 and 18 are folded back so as to be pushed inward from the left and right edge portions of the installation plate 1 (both edge portions 150 and 160 of the installation plate 10).

  According to the present invention, the final cut surfaces 17b and 18b are tightly bent to form the cut surface folded portions 17 and 18, and are driven further inward than both ends (both edge portions 150 and 160) of the installation plate 10 of the indoor unit. Therefore, it is difficult to touch when the installation plate 10 is handled, and it is safe even if the hand touches. Further, even if the power cord comes into contact, the power cord is not damaged. For this reason, it is not necessary to protect the final cut surfaces 17b and 18b with a tape or the like as in the prior art, and the cost of the product can be reduced.

  DESCRIPTION OF SYMBOLS 1 Main body (indoor unit main body), 2 housing | casing, 3 heat exchanger, 4 air blower (blower means), 6 suction inlet, 7 blower outlet, 9 latching part of main body, 10 installation board, 10a work, 11 installation board Convex part, 13-16 flange, 13a, 14a Folded part of flange, 17, 18 Folded part of final cut surface (cut surface folded part), 17a, 18a Connecting part, 17b, 18b Final cut surface, 150, 160 Mounting plate Both end edges, 170, 180 Both end edges of the cut surface folded portion, A to F progressive press process, G single press process.

Claims (5)

An air conditioner having an air blower and a heat exchanger, and having an indoor unit main body that sucks air by the air blower and exchanges heat with the heat exchanger, and an installation plate that is attached to an indoor wall surface and installs the indoor unit main body An indoor unit,
The indoor unit of an air conditioner, wherein the installation plate is formed from sheet metal by a progressive press, and a final cut surface of the installation plate by the progressive press is folded.   The indoor unit of an air conditioner according to claim 1, wherein the folding of the final cut surface by the progressive pressing of the installation plate is a close contact bending.   The indoor unit of an air conditioner according to claim 1 or 2, wherein the folding of the final cut surface by the progressive pressing of the installation plate is driven inward from the outer peripheral edge of the installation plate.   4. The air conditioner according to claim 3, wherein the folding of the final cut surface by the progressive pressing of the installation plate is located at both ends in the longitudinal direction of the installation plate and is driven inward from the edge portions of the both ends. Indoor unit.   An air conditioner comprising the indoor unit according to claim 1.

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