JPS587250Y2 - housing - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure of a casing that is strong and has a small external dimension.

An embodiment of the present invention will be applied to an outdoor unit of a separate air conditioner and will be explained based on FIGS. 1 to 4.
1 has outside air intake grilles 4a, 4 on the front 2 and back 3
b, an inverted U-shaped outer box equipped with a discharge grill 6 on the top surface 5;
Reference numeral 7 denotes a bottom plate with a rising wall 8 around the periphery, and 9 a side plate that includes an outside air suction grill 4C and closes the side opening of the outer box 1. These constitute the casing of the outdoor unit.

The three side edges of the outer box 1 are bent inward in an L-shape to form flange surfaces 10 a , 10 b , and 10 C, and the rising walls 11 on both sides of the bottom plate 7 are formed on the flange surfaces 10 . a, 10 Flat surface portion 12 that joins with the inner wall of C
and an outwardly inclined slope portion 13 and an outwardly protruding projecting surface portion 1.
4 and are bent.

Moreover, the side plate 9 has flange surfaces 10 a , 10 b , 10
It is formed in a mounting 3 frame surface portion 15 that joins with the outer wall of C, and a bulging surface portion 16 that is bulged in a step shape except for the 3 frame surface portions, and this bulging surface portion 16 and slope portion 17 are formed below this. The projecting surface portion 14 and the slope portion 13 of the side wall 11 are vertically raised on both sides.
The shape is such that it is connected to the outer wall of each.

18a and 18b are needle-fin type heat exchangers in which heat exchange pipes 20 with needle-like fins 19 wrapped and fixed are stacked and fixed in a drum shape, one heat exchanger 18b is connected to the partition wall 21, and the other heat exchanger 18a is the projecting surface portion 14 of the side rising wall 11
They are juxtaposed so close to the inner dimension of the bottom plate 7 that they are in contact with each other.

22a, 22b are outside air intake grills 4a, 4
b, 4 C to exhaust grill 6 midway heat exchanger 18 a
, 18b, and is housed in the drum-shaped inner space of the heat exchangers 18a, 18b.

23 is a compressor separated from heat exchangers 18a and 18b by a partition wall 21, and 24 is an electrical component.

The present invention is constructed as described above, and as shown in FIG.
After the refrigeration equipment such as a, 22b, the compressor 23, and the electrical components 24 are mounted and fixed, the outer box 1 is covered with the bottom plate 7 from above as shown in Fig. 3 (the refrigeration equipment is not shown). After screwing to the rising wall 8, the mounting 3 frame surface portion 15 of the side plate 9 is joined to the flange surfaces 10a, 10b, 10C, and the flat surface portions 12 of the both side rising walls 11 are connected with screws 25a, 25b, 7. Align the flange surface 10a, IOC with the lower part of the mounting 3 frame surface portion 15, and connect the flange surface 10a, 10 with another screw 25C...
b. When 10C and the mounting 3 frame surface portion 15 are tightened, the bulging surface portion 16 of the side plate 9 and the lower surface portion of the slope portion 17 are in close contact with the bulging surface portion 14 and the slope portion 13 of the side rising wall 11, respectively. and the assembly work of the case is completed.

In contrast to the above assembly structure, in the conventional structure, the bottom plate was bent inward in an L-shape to form three flange surfaces 10 in order to provide strength to the outer box 1', as shown in Figure 5. Since the side wall 11' and the side plate 9' of 7' were formed into a straight flat plate shape, the L-shaped end 2 protruding from the side plate 9'
The disadvantage is that the outer box 1' is longer by the dimension l of 6', making the casing larger, and the side plate 9' is weak in strength because it is simply formed into a flat plate along with the formation of the outside air intake grille 4C. had.

In view of such drawbacks, the present invention uses a drum-shaped heat exchanger 18a (outside air intake grilles 4a, 4b) as in the above-mentioned embodiment.
, 4 In the case of a plate-fin type heat exchanger bent in a U-shape facing C, the U-shaped bent part may be formed large) and the corners of the casing. The internal dimensions of the housing determined by the exchanger 18a are determined by the projecting surface portion 14.
By forming the bulging surface portion 16 and setting the protruding dimension l of the L half end 26 so as to fit within this dimension, the length of the casing can be shortened while providing strength to the outer box 1. In addition, in the formation of the outside air intake grille 4C, the side plate 16, which is inferior in strength, is made to bulge out in steps to provide strength.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention. Figure 1 is a perspective view of the casing, Figure 2 is a perspective view of the same with the outer box removed, and Figure 3 is an exploded perspective view of the main part of the casing. 4 is a sectional view taken along line IV-IV' in the assembled state shown in FIG. 3, and FIG. 5 is a sectional view of a conventional structure in place of FIG. 4. 1...outer box, 7...bottom plate, 9...
...Side plates, 10a, 10b. 10 C...Flange surface, 11...Side rising wall, 14...Protruding surface portion, 16...
...Bulging surface part.

Claims (1)

[Scope of utility model registration request] An inverted U-shaped outer box whose side edges are bent inward to form a flange surface, a bottom plate that covers the lower opening of the iron box, and an outer box that is joined to both rising walls of the bottom plate and the flange surface. The box is composed of a side plate that closes a side opening of the box, and the central part of the side rising walls is bent to protrude outward, and the side plate is bulged in a step shape to join with the protruding surface part. The housing is characterized by: