JPH0330741Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an outdoor unit of an air conditioner in which the outer surface of the heat exchanger is covered with a protective grille.

(Prior art) In the outdoor unit of an air conditioner, the outer surface of the heat exchanger is covered with a net, perforated plate, or grid to prevent deformation of the heat radiating fins of the heat exchanger and to prevent the sheet from being sucked in. Traditionally, it has been covered with a protective grill. For example, the outdoor unit disclosed in Japanese Utility Model Application Publication No. 59-71069 is one of such devices.

(Problem that the invention aims to solve) By the way, in order to increase the capacity of the air conditioner, the heat exchanger of the outdoor unit is arranged in two layers, upper and lower, to increase the air conditioning capacity without increasing the installation area. There are cases where For example, when installing an outdoor unit using the adjacent space between buildings,
These demands are strong. In such an outdoor unit, when the outer surface of the heat exchanger is covered with a protective grille, the rigidity of the protective grille itself becomes a problem. By stacking the heat exchanger in two layers, the vertical dimensions of the protective grille become larger, but in this case, even if the surrounding area is firmly fixed, there is a risk that the central portion may flex and deform and come into contact with the heat dissipation fins. This is because it occurs. In particular, when the protective grille is made of wire material and is formed into a lattice structure, the opening degree of the grille is larger than other grilles, which tends to lack rigidity.

(Purpose of the invention) The present invention was proposed in view of the above.
The aim is to improve the rigidity of the protective grille at low cost and to improve the external appearance of the outdoor unit by increasing the functionality of the parts prepared for the two-tiered heat exchanger. do.

(Means for solving the problem) That is, as shown in FIG. 1, the heat exchangers 5A and 5B of the outdoor unit 1 can be seen through the protective grille 7. Therefore, if the heat exchangers 5A and 5B are stacked in two layers, the adjacent line L between them will also be clearly visible from the outside, giving a sense of discomfort to sales and installation companies and users, and detracting from the quality of their appearance. I'll get lost.

In this invention, the adjacent line L of the heat exchangers 5A and 5B
The outer surface of the decorative bead 14 is covered to prevent the appearance from being degraded, and the cosmetic bead 14 is
By using 4 to reinforce the protective grille 7,
This will improve its rigidity.

Specifically, the decorative beam 14 is formed of, for example, a relatively wide metal plate, and is fixed to the metal wire 8 of the protective grille 7 by spot welding or the like. Then, both left and right ends of the decorative beam 14 and a plurality of locations around the periphery of the protective grille 7 are fixed to the fuselage case 2 with screws 13, 16, etc. If higher mechanical strength is required by changing the aspect ratio of the outer shape of the protective grille 7, the cross-sectional shape of the decorative beam 14 can be changed to a U-shape, an L-shape, or an Ω-shape with reinforcing ribs. It is preferable to form.

(Function) Accordingly, in the present invention, since the decorative beam 14 is arranged on the outer surface of the adjacent portion of the upper and lower heat exchangers 5A, 5B, the adjacent line L is shielded by the decorative beam 14,
It is possible to eliminate the appearance of discomfort. Also,
Since the protective grille 7 is reinforced using the decorative beams 14, the rigidity of the protective grille 7 can be improved at low cost.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 and 3.

In FIG. 1, the outdoor unit 1 of the air conditioner is
Although not shown, a compressor and a blower fan are housed inside the rectangular box-shaped fuselage case 2, and air intake vents 3 and 4 are opened on the front and right sides of the fuselage case 2, respectively. , facing the ventilation holes 3 and 4, heat exchangers 5A and 5B of the same shape and size and having an L-shaped cross section are arranged in two stacked layers, one above the other. In order to prevent deformation of the radiation fins 6 of the heat exchangers 5A, 5B, their outer surfaces are covered with protective grilles 7, 7.

The front protective grille 7 is constructed by arranging steel wire rods 8 vertically and horizontally and welding the intersections of the wire rods 8 to form a grid. In this case, the diameter of the wire rod 8 is 2.5 m/m, and the maximum width dimension of the protective grille 7 is approximately 60 m/m.
cm, the maximum vertical dimension is approximately 80 cm, and the vertical dimension is larger than the width dimension. In order to fix the protective grille 7 to the fuselage case 2, locking portions 9 are formed at both left and right end portions of the horizontally arranged uppermost row of wire rods 8a by bending the end portions upward.
In addition, the wire rods 8 on both the left and right sides arranged in the vertical direction
Bend the lower ends of b and 8b into a U shape and attach the mounting seat 10.
is formed.

The maximum width of the side protective grille 7 is approximately 30 mm.
It has the same structure as the protective grille 7 on the front side, except that it is cm, and the locking portion 9 and the mounting seat 10 are also formed in corresponding positions in the same manner.

As shown in FIG. 3, mounting holes 12 are formed near the upper end of the fuselage case 2 and the corner frame 2a constituting the case 2, corresponding to the locking portions 9. After inserting the locking part 9 into this mounting hole 12 and aligning the protective grille 7 with the ventilation hole 3 or the ventilation hole 4,
By fixing the mounting seat 10 to the seat frame 2b with screws 13, each of the front and side protective grilles 7, 7
is fixed to the fuselage case 2.

Furthermore, in order to shield the adjacent lines L of the heat exchangers 5A and 5B stacked one above the other, strip-shaped decorative beams 14 and 14 are provided on the outer surface of the adjacent portions over the entire width of each ventilation opening 3 and 4. It is arranged. This cosmetic pole 14,
14 is used to reinforce the front and side protective grilles 7, 7, and as shown in FIG. It is integrated with the grills 7, 7. In this fixed state, each cosmetic arm 14, 1
4 is located at the vertical center of the protective grilles 7, 7. Screw seats 15, 15 are formed in a step-like manner at both left and right ends of the front decorative arm 14, and these screw seats 15, 15 are fixed to the fuselage case 2 and the corner frame 2a with screws 16. There is. Similarly,
A screw seat 15 is formed at the front end of the decorative frame 14 on the side, and is fixed to the corner frame 2a with screws 16.

According to the protective grilles 7, 7 configured as described above, the vertical center portion, which is most likely to be bent and deformed, is reinforced with the decorative beams 14, 14 that shield the adjacent lines L of the upper and lower heat exchangers 5A, 5B. Therefore, the rigidity and strength of the protective grilles 7, 7 are improved. Furthermore, by fixing the decorative legs 14, 14 to the fuselage case 2 and the corner frame 2a with screws 16, and restraining movement in the inward and outward directions near the center of the protective grilles 7, 7, the rigidity is further improved. It is possible to prevent vibrations and chatter noises from occurring in the protective grilles 7, 7 during operation.

In addition, in the above embodiment, the intake vents 3, 4
Although the description has been made of a case where the vents are opened at two locations on the front and right side surfaces, it goes without saying that the ventilation ports may be opened at one location on the circumferential surface of the fuselage case 2. Further, the ventilation ports 3 and 4 may be air outlets.

Furthermore, the grid shape of the protective grille 7 can be changed in various ways by, for example, changing the arrangement direction of the wire rods 8 diagonally, or by arranging non-linear wire rods 8 vertically and horizontally. moreover,
It is also possible to improve the strength near the center by changing the arrangement density and wire diameter of the wire rods 8.

Further, depending on changes in the shape of the heat exchangers 5A and 5B, a vertically elongated protective grille 7 with a large vertical-width dimension ratio may be required. In such a case, the cross-sectional shape of the decorative sill 14 may be made into a U-shape or an L-shape, or reinforcing ribs may be formed in the longitudinal direction of the board surface to improve its strength.

(Effects of the invention) As explained above, in this invention, the adjoining line L is shielded by the decorative beam 14 placed on the outer surface of the adjacent portion of the upper and lower heat exchangers 5A, 5B, and the decorative beam 14 is The central part of the protective grille 7, which is easily bent and deformed, is reinforced by using the decorative grille 1.
4 to the fuselage case 2 to restrain the movement of the protective grille 7 in the inward and outward directions and improve its rigidity, thereby eliminating the sense of discomfort caused by the visibility of the adjacent line L and improving the appearance quality. , the rigidity of the protective grille 7 covering a relatively large area can be improved at low cost. Furthermore, as the rigidity is improved, it is also possible to prevent vibration of the protective grille 7 during operation, thereby preventing fatigue and generation of vibration noise at the portion fixed to the fuselage case 2.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, and FIG. 1 is a front view of an outdoor unit of an air conditioner;
Figure 2 is a sectional view taken along line A-A in Figure 1;
FIG. 3 is a sectional view taken along line B--B in FIG. 1. 1... Outdoor unit, 2... Aircraft case, 3, 4...
Ventilation opening, 5A, 5B... Heat exchanger, 7... Protective grille, 8... Wire rod, L... Adjacent line, 14... Decorative beam.

Claims (1)

[Scope of utility model registration request] A ventilation port 3 or 4 is opened in the fuselage case 2, and heat exchangers 5A and 5B are stacked in two layers, facing the ventilation port 3 or 4, and the outer surface of the ventilation port 3 or 4 is a protective grille 7. In the outdoor unit of the air conditioner covered with棧1
4 is integrally provided, and both left and right end portions of the decorative rail 14 and a plurality of peripheral portions of the protective grille 7 are attached and fixed to the fuselage case 2. .