JPH0222579Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a heat exchanger fixing device for an air conditioner.

(Prior Art) As a conventional example of a heat exchanger fixing device for an air conditioner, there can be mentioned, for example, the device described in Japanese Utility Model Publication No. 58-46326. This apparatus is shown in FIG. 10, where 51 indicates a heat exchanger, and this heat exchanger 51 has a bracket 52 attached to its side end. Further, a flange 53 extending laterally is formed at the rear end of the bracket 52.
3 has a plurality of mounting holes 54 drilled therein. On the other hand, also in the fixing frame 56 fixed to the main body casing, a mounting hole 57 is bored at a position corresponding to the mounting hole 54 described above. That is, in this fixing device, the heat exchanger 51 is fixed to the fixing frame 56 of the main body casing by using the mounting holes 54 of the flange 53 and the mounting holes 57 of the fixing frame 56 with the bolts 55. structure has been adopted.

(Problem to be Solved by the Invention) By the way, in the heat exchanger fixing device described above, when the heat exchanger is arranged approximately vertically in the main body casing as shown in FIG. Water droplets falling from the connecting portion 59 with the shaped bend 58 (FIG. 10) may scatter outside the machine. In order to prevent this, a drip-proof plate is used to cover the U-shaped bend 58, but as a result, the number of parts increases and the structure becomes complicated.
Further, since it is necessary to drill a plurality of mounting holes 54 and 57 in the bracket 53 and the fixing frame 56, the structure becomes complicated, and therefore, there is a drawback that a large number of steps are required for manufacturing.

This idea was made in order to solve the above-mentioned drawbacks of the conventional technology, and its purpose was to eliminate the need to install a drip-proof plate as described above, so the structure is simple, and it is easy to manufacture. An object of the present invention is to provide a heat exchanger fixing device for a conditioner.

(Means for Solving the Problems) Therefore, in the air conditioner heat exchanger fixing device of this invention, the air conditioner heat exchanger for supporting the heat exchanger 3 substantially vertically within the main body casing 1 is provided. In the fixing device, a fixing frame 10 is provided inside the main body casing 1, a U-shaped bend 9 for connecting the refrigerant pipes 8, 8 is arranged on the front side of the fixing frame 10 at the side surface of the heat exchanger 3, and the above-mentioned A fixing plate 16 extending in the vertical direction is arranged on the front surface of the U-shaped bend 9, and the vicinity of both upper and lower ends 17 and 18 of this fixing plate 16 are fixed relative to the fixing frame 10, thereby allowing heat exchange. It is designed to fix the container 3.

(Function) As a result of the above, the U-shaped bend 9 of the heat exchanger 3 is placed between the fixing frame 10 and the fixing plate 16, and heat exchange is performed simply by fixing the fixing plate 16 relatively to the fixing frame. The device 3 can now be fixed. As a result of the front surface of the U-shaped bend 9 being covered by the fixing plate 16 in this way, the fixing plate 16 functions not only as a fixing member for the heat exchanger 3 but also as a drip-proof plate. . Therefore, there is no need to use a separate drip-proof plate as in the past, and there is no need to form a flange or drill multiple mounting holes in this flange or fixing frame. becomes simple.

(Example) Next, a specific example of the heat exchanger fixing device for an air conditioner of this invention will be described in detail with reference to the drawings.

First, Fig. 9 shows a schematic configuration of the entire air conditioner. In the figure, 1 is the main body casing,
A heat exchanger 3 is arranged substantially vertically in the casing 1 near the air suction port 2 . In addition, 4
5 indicates an air blower, 5 indicates an air outlet, and 6 indicates a drain pan.

A first embodiment of the fixing device for the heat exchanger 3 is shown in FIGS. 1 to 3. As shown in the figures, the heat exchanger 3 has a large number of fins 7...
It has a refrigerant pipe 8 extending through the
Further, on one side surface thereof, a pair of adjacent refrigerant pipes 8, 8 are connected by a U-shaped bend 9. Note that 32 indicates a connection portion between the refrigerant pipe 8 and the U-shaped bend 9. In this case, the heat exchanger 3 does not have a bracket (tube sheet) as in the conventional example, but is shown as a so-called tube sheet-less type without a bracket. On the other hand, reference numeral 10 denotes a fixing frame, and this fixing frame 10 is fixed at a proper position within the main body casing 1, and a flange 11 extending in the vertical direction is formed at its front end. Reference numeral 12 denotes an auxiliary fixing member 12, which is attached near the upper end of the fixing frame 10, as shown in FIGS. 2 and 3. The pipe 9a on the upper side of the shaped bend 9 serves to restrict forward movement. That is, the auxiliary fixing member 12
A base 13 attached to the back surface of the upper end of the fixing frame 10, a protruding piece 14 protruding forward from one end of the base 13, and a cutout 1 on a part of the protruding piece 14.
5a and an engaging edge 15 extending in the vertical direction, and the engaging edge 15 engages with the outer circumferential surface of the tube 9a. Further, reference numeral 16 denotes a fixing plate, and this fixing plate 16 has a shape in which both the upper and lower ends of a band-shaped plate are bent backward, and the positions of the end sides are also folded back in the vertical direction. , its upper and lower ends serve as attachment portions 17 and 18, and the lower attachment portion 18 is provided with an attachment hole 19.

The procedure for fixing the heat exchanger 3 in the above-described apparatus will be described below. First, as shown in FIGS. 2 and 3, the auxiliary fixing member 12 is fixed to the back side of the upper end of the fixing frame 10 with screws 20. Next, the cutout portion 15a of the auxiliary fixing member 12
The upper tube 9 of the U-shaped bend 9 located at the top within
a, and the outer peripheral surface of the engagement edge 15.
to engage. Then, while inserting the upper mounting portion 17 of the fixing plate 16 into the lower side of the tube 9a,
The heat exchanger 3 is fixed by rotating the lower mounting part 18 and fixing the lower mounting part 18 to the lower part of the fixing frame 10 with screws 21 as shown in FIG. As a result, the forward movement of the upper tube 9a is regulated by the engagement edge 15 of the auxiliary fixing member 12, the upper mounting portion 17 of the fixing plate 16 is fixed by the upper tube 9a, and The lower mounting part 18 of the fixing plate 16 is attached to the fixing frame 1
Therefore, the heat exchanger 3 is fixed between the fixing frame 10 and the fixing plate 16.

FIG. 4 shows a modification of the fixing device, in which an L-shaped auxiliary fitting 22 is fixed to the upper end of the fixing frame 10, and a slit 23 is provided in this auxiliary fitting 22, so that the fixing plate 16 The plate 16 is fixed by fitting the upper mounting portion 17 into the slit 23.
Since the structure of other parts is substantially the same as in the above embodiment, the same parts are indicated by the same reference numerals and the explanation thereof will be omitted, but the heat exchanger 3 is fixed in the same manner as above in this embodiment. Is possible.

In each of the fixing devices for the heat exchanger described above, as shown in FIG. Since the front surface of the bend 9, especially the joint 32 between the refrigerant pipe 8 and the U-shaped bend 9, is covered by the fixing plate 16, it fixes the heat exchanger 3 and at the same time prevents water droplets from leaving the machine. This means that the use of conventional drip-proof plates can be omitted. In addition, there is no need to form a flange on the bracket at the end of the heat exchanger or to drill multiple mounting holes in the flange or fixing frame as in the conventional case, so the structure is simple. Its production becomes easy.

In each of the above embodiments, the case where one side of the heat exchanger 3, that is, the part having the U-shaped bend 9 on the right side when viewed from the front of the heat exchanger 3, is fixed, but the other side is fixed. In the part having the U-shaped tube part 33, a fixing structure similar to that described above may be used, or other fixing structures as shown in FIGS. 5 to 8 may be used. For example, the fifth
The fixing fitting 24 shown in the figure has a mounting leg portion 25 and a pair of engaging portions 26, 26, and this fitting 24 is used to attach a pair of adjacent U as shown in FIG. The tube portions 33, 33 may be fixed to the fixing frame 27. Furthermore, the fixing fitting 28 shown in FIG. 7 has a mounting leg portion 29 and an engagement hole portion 30 into which the U-shaped tube portion 33 can be fitted. As shown in FIG. 2, one U-shaped tube portion 33 may be fixed to the fixing frame 31.

(Effect of the invention) In the heat exchanger fixing device for an air conditioner of this invention, the fixing plate not only has the function of fixing the heat exchanger but also has the function of a drip-proof plate. No need to use a drip plate,
Furthermore, since there is no need to form a flange on the bracket at the end of the heat exchanger, or to drill multiple mounting holes on the flange or the fixing frame, the configuration can be simplified, making it easier to manufacture. Become.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the air conditioner heat exchanger fixing device of this invention, Fig. 2 is a perspective view of the device in the middle of assembly, and Fig. 3 is a longitudinal sectional view of the device in the assembled state. , FIG. 4 is a vertical cross-sectional view of another embodiment of the fixing device, FIG. 5 is a perspective view of an example of a fixing fitting used in conjunction with each of the above-mentioned fixing devices, FIG. 6 is a side view of its use state, and FIG. 7 is a perspective view of another example of the fixing fitting similar to the above, FIG. 8 is a side view of its usage state, and FIG. 9 is an explanatory diagram of the schematic structure inside the air conditioner of this invention.
FIG. 10 is a perspective view of a conventional example. 1... Main body casing, 3... Heat exchanger, 9...
...U-shaped bend, 10...Fixing frame, 16...
...Fixing plate, 17, 18...Mounting part.

Claims (1)

[Scope of utility model registration request] In a heat exchanger fixing device for an air conditioner for supporting a heat exchanger 3 substantially vertically within a main body casing 1, a fixing frame 10 is provided within the main body casing 1.
A U-shaped bend 9 for connecting the refrigerant pipes 8, 8 on the side surface of the heat exchanger 3 is arranged on the front surface of the fixing frame 10, and a fixing member extending in the vertical direction is provided on the front surface of the U-shaped bend 9. plate 16
The heat exchanger 3 is fixed by arranging the upper and lower ends 17 and 18 of the fixing plate 16 relative to the fixing frame 10. Exchanger fixation device.