JP2009085441A - Air conditioner outdoor unit - Google Patents

Abstract

An object of the present invention is to prevent a front-rear and left-right shift of a two-stage vertically stacked heat exchanger.
Suction ports 2, 3, 4 are provided on the left and right side surfaces and the back surface, and a blower port 5 having an exhaust fan is provided on the top surface. The upper heat exchanger 6 and the lower heat exchanger 7 formed on the outdoor unit bottom plate are vertically stacked in two stages, and the upper heat exchanger 6 and the lower heat exchanger 7 are side plates 8 provided at both ends thereof, In the outdoor unit fixed to the outdoor unit bottom plate by 9, auxiliary plates 10 and 11 inserted through heat transfer tubes are arranged in regions corresponding to the suction ports on the back surface of the upper heat exchanger 6 and the lower heat exchanger 7, respectively. The auxiliary plates 10 and 11 were connected to each other by a connecting plate 12.
[Selection] Figure 4

Description

  The present invention relates to an outdoor unit of a separate type air conditioner, and more particularly to an outdoor unit of an air conditioner in which flat polygonal heat exchangers bent at a plurality of locations are attached in two vertical stages.

  Conventionally, an outdoor unit of a separation type air conditioner has been provided with a compressor, a heat exchanger, a fan motor, a control circuit unit, etc., on the outdoor unit bottom plate of the main body, especially when increasing the heat exchange capacity. Has been installed in two vertical stacks of heat exchangers of a planar polygonal shape (for example, U-shape) bent at a plurality of locations.

FIG. 6 is a view showing the arrangement of a conventional heat exchanger (see, for example, Patent Document 1). The upper heat exchanger 21 and the lower heat exchanger 22 have side plates 23 and 24 attached to their ends connected to connecting brackets 25. And the lower side plate 24 is fixed to the outdoor unit bottom plate with a coupling fitting (not shown).
Japanese Utility Model Publication No. 4-70925

  However, when the above-described two-stage vertically stacked heat exchangers are manufactured for large buildings such as buildings, the upper heat exchanger 21 and the lower heat exchanger 22 are connected to the bottom plate of the outdoor unit only at the side plates 23 and 24. With the structure held against the above, at the time of transportation or installation, the left / right or front / rear misalignment occurs at the portions away from the side plates 23, 24 of both heat exchangers 21, 22, and there is a risk of damage.

  An object of the present invention is to provide an outdoor unit of an air conditioner that prevents a deviation from occurring in a heat exchanger that is vertically stacked in two stages, even during conveyance and movement.

In order to achieve the above object, the invention according to claim 1 is provided with suction ports on the left and right side surfaces and the back surface, and provided with an air outlet provided with an exhaust fan on the upper surface, and has a flat surface facing the suction ports. An upper heat exchanger and a lower heat exchanger formed in a polygonal shape are installed on the outdoor unit bottom plate in two vertical stages, and the upper heat exchanger and the lower heat exchanger are installed outdoors by side plates provided at both ends thereof. In the outdoor unit fixed to the machine bottom plate, an auxiliary plate inserted with a heat transfer tube is disposed in a region corresponding to the one or more suction ports of the upper heat exchanger and the lower heat exchanger, The two auxiliary plates are connected to each other.
According to a second aspect of the present invention, in the outdoor unit according to the first aspect, the auxiliary plate includes a mounting piece projecting outward or inward of the upper and lower upper heat exchangers and the lower heat exchanger of the upper and lower two-stage stack, The mounting pieces are connected by a connecting plate.

  According to the present invention, the region portion corresponding to the outdoor unit suction port of the heat exchanger that is vertically stacked in two stages is held by the connection of the auxiliary plate of the upper heat exchanger and the auxiliary plate of the lower heat exchanger. Even when moving, it is possible to prevent the front / rear / left / right misalignment from occurring in the portion away from the side plates of both heat exchangers. Further, the auxiliary plate can be formed of sheet metal and has a simple structure, so there is no possibility of causing a large cost increase.

  FIG. 1 is a perspective view showing an appearance of an outdoor unit, and FIG. 2 is a perspective view with a part cut away. 1 and 2, 1 is a front surface on which a control circuit unit, a compressor, and the like are arranged, 2 is a left suction port, 3 is a right suction port, 4 is a rear suction port, and 5 is an upper air outlet provided with an exhaust fan. .

  As shown in FIG. 3, an upper heat exchanger 6 and a lower heat exchanger 7 are vertically stacked in two upper and lower stages inside the left suction port 2, the right suction port 3, and the rear suction port 4. Has been placed. Side plates 8 and 9 are respectively attached to the left and right ends of the heat exchangers 6 and 7, and these side plates 8 and 9 are integrated by a connecting plate (not shown) as indicated by reference numeral 25 in FIG. Has been. And the lower end of the side plate 9 of the lower heat exchanger 7 is fixed to the outdoor unit bottom plate (not shown) by another connecting plate (not shown). Thereby, both ends of the upper heat exchanger 6 and the lower heat exchanger 7 are fixed to the outdoor unit bottom plate by the side plates 8 and 9.

  In FIG. 3, 10 is an auxiliary plate provided in the upper heat exchanger 6 of the embodiment of the present invention. The auxiliary plate 10 has substantially the same outer shape as the fin 6a of the upper heat exchanger 6, but an attachment piece 10a is formed inside the lower end, and a hole 10b is formed at the same position as the hole 6b of the fin 6a. Then, this auxiliary plate 10 is aligned with the fins 6a, the holes 10a and 6a are aligned, and the heat transfer tubes 6c are inserted and then expanded, so that the heat transfer tubes 6c are the same as the fins 6a. The auxiliary plate 10 is attached in close contact. Also for the lower heat exchanger 7, as shown in FIG. 4, the auxiliary plate 11 is attached to the heat transfer tube 7c together with the fins 7a in exactly the same manner. An attachment piece (not shown) similar to the attachment piece 10a is formed inside the upper end of the auxiliary plate 11.

  And the attachment piece 10a of the auxiliary plate 10 of the upper heat exchanger 6 and the attachment piece of the auxiliary plate 11 of the lower heat exchanger 7 are connected inside the upper heat exchanger 6 and the lower heat exchanger 7 vertically stacked in two stages. The upper heat exchanger 6 and the lower heat exchanger 7 are integrated by being connected by a plate 12 (FIGS. 2 and 4).

  Therefore, the upper heat exchanger 6 and the lower heat exchanger 7 are held mutually in a substantially central portion of a region corresponding to the rear air inlet 4 of the outdoor unit, which is an attachment portion of the auxiliary plates 10 and 11, and forward, backward, left and right. Deviation is prevented.

  In addition, the attachment pieces of the auxiliary plates 10 and 11 may be provided not on the inner side of the vertically stacked heat exchangers 6 and 7 but on the outer side, and may be connected by a connecting plate on the outer side. It may be provided on the inner side and the outer side, and may be connected by separate connecting plates on the inner side and the outer side. Further, if one attachment piece of the auxiliary plates 10 and 11 is extended with respect to the other attachment piece, both attachment pieces can be directly coupled with screws or the like, and a connecting plate is not necessary. The auxiliary plates 10 and 11 are not limited to one place of the vertically stacked heat exchangers 6 and 7, but are attached to two or more places to fix the upper heat exchanger 6 and the lower heat exchanger 7 to each other. Also good. Further, the auxiliary plates 10 and 11 are not limited to the area corresponding to the rear inlet 4 of the outdoor unit in the upper heat exchanger 6 and the lower heat exchanger 7, but the rear inlet 4, the left inlet 2, and the right inlet You may attach to the area | region corresponding to any one or more of the mouth 3. FIG.

It is a perspective view of an outdoor unit. It is a perspective view of a notch of the outdoor unit. FIG. It is attachment explanatory drawing of the auxiliary | assistant board of the Example of this invention. It is a perspective view of the principal part of the upper and lower two-stage vertically stacked heat exchanger held by the auxiliary plate of the same embodiment. It is a partial perspective view of holding | maintenance of the conventional heat exchanger.

Explanation of symbols

  1: Front, 2: Left inlet, 3: Right inlet, 4: Back inlet, 5: Top outlet, 6: Upper heat exchanger, 6a: Heat transfer pipe, 7: Lower heat exchanger, 8, 9: Side plate 10: auxiliary plate, 10a: mounting piece, 10b: hole, 10c: heat transfer tube, 11: auxiliary plate, 12: connecting plate

Claims (2)

Suction ports are provided on the left and right side surfaces and the back surface, and an air outlet provided with an exhaust fan is provided on the top surface. Inside, an upper heat exchanger and a lower heat exchanger formed in a plane polygon so as to face each of the suction ports are provided. In the outdoor unit of the air conditioner that is installed on the outdoor unit bottom plate in two vertical stacks, and that the upper heat exchanger and the lower heat exchanger are fixed to the outdoor unit bottom plate by side plates provided at both ends thereof,
An auxiliary plate inserted with a heat transfer tube is disposed in a region corresponding to any one or more suction ports of the upper heat exchanger and the lower heat exchanger, and the auxiliary plates are connected to each other. Air conditioner outdoor unit. In the outdoor unit of the air conditioner according to claim 1,
The auxiliary plate includes a mounting piece protruding outside or inside the upper and lower heat exchangers of the upper and lower two-stage stack, and the mounting pieces are connected by a connecting plate. Outdoor unit.

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