JP2009085440A - Outdoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the longitudinal and lateral displacement of heat exchangers vertically stacked in two stages. <P>SOLUTION: In this outdoor unit in which suction openings 2, 3 and 4 are formed at right and left side faces and a back face, a supply opening 5 comprising an exhaust fan is formed on a top face, the upper heat exchanger 6 and the lower heat exchangers 7 formed into a planar polygonal shape opposed to the suction openings 2, 3 and 4, are vertically stacked in two stages inside and disposed on a bottom plate of the outdoor unit, and the upper heat exchanger 6 and the lower heat exchanger 7 are fixed to the bottom plate 10 of the outdoor unit by side plates 8, 9 disposed at both ends, the upper heat exchanger 6 and the lower heat exchanger 7 are pressed to the outdoor unit bottom plate 10 by a vertical connection plate 11 in a region corresponding to the suction opening 4 of the back faces, and the lower end of the vertical connection plate 11 is fixed to the outdoor unit bottom plate 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an outdoor unit of a separation 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 places are mounted in two vertical stacks.

  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 an outdoor unit bottom plate (not shown) with a connecting bracket.
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, an outdoor unit of an air conditioner according to a first aspect of the present invention 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 top surface. An upper heat exchanger and a lower heat exchanger formed in a plane polygon so as to face the suction port are installed on the outdoor unit bottom plate in a two-stage vertical stack, and the upper heat exchanger and the lower heat exchanger are installed at both ends thereof. In the outdoor unit fixed to the outdoor unit bottom plate by the side plate provided in the upper and lower heat exchangers in the region corresponding to the one or more suction ports by the upper and lower connection plates And fixed to the bottom plate of the outdoor unit.
According to a second aspect of the present invention, in the outdoor unit for an air conditioner according to the first aspect, the upper and lower connection plates are made of a U-shaped sheet metal, and the U-shaped portion corresponds to the upper heat exchanger and the The lower heat exchanger is fitted into a gap between the upper heat exchanger and the lower heat exchanger from above the upper heat exchanger so as to sandwich the lower heat exchanger, and the lower end is fixed to the outdoor unit bottom plate. Features.
According to a third aspect of the present invention, in the outdoor unit for an air conditioner according to the first aspect, the upper and lower connection plates are two sheet metal connection plates having upper ends formed in an L shape, The connection plate is pressed from the inside of the upper heat exchanger and the lower heat exchanger in the upper and lower two-stage stack so that the L-shaped tip is placed on the upper heat transfer tube of the upper heat exchanger, and the other connection plate is The upper end of the upper and lower heat exchangers are pressed from the outside of the upper heat exchanger and the lower heat exchanger so that the L-shaped tip is on the upper heat transfer tube of the upper heat exchanger, and the lower ends of the two connection plates are It is characterized by being fixed to the outdoor unit bottom plate.

  According to the present invention, the region portion corresponding to the outdoor unit suction port of the two-stage vertically stacked heat exchanger is fixed to the outdoor unit bottom plate by the upper and lower connection plates. It is possible to prevent the front / rear / left / right misalignment from occurring at a portion away from the side plate. Further, the upper and lower connecting plates can be formed of a U-shaped sheet metal or a sheet metal obtained by dividing the U-shape into two parts, and since it has a simple structure, there is no risk of a significant increase in cost.

  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 surface outlet provided with an exhaust fan. .

  As shown in FIG. 3, an upper heat exchanger 6 and a lower heat exchanger 7 are arranged 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. 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. The lower end of the side plate 9 of the lower heat exchanger 7 is fixed to the outdoor unit bottom plate 10 with 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 10 by the side plates 8 and 9.

  In FIG. 3, reference numeral 11 denotes a U-shaped upper and lower connecting plate according to an embodiment of the present invention. The upper and lower connecting plates 11 have an inner height matched to the size from the outdoor unit bottom plate 10 to the upper end of the uppermost heat transfer tube 6a of the vertically stacked upper heat exchanger 6, and the inner width is the upper heat exchange. The horizontal width of the heat transfer tubes of the heat exchanger 6 and the lower heat exchanger 7 is adjusted. At the lower end, attachment pieces 11a and 11b for attachment to the outdoor unit bottom plate 10 are formed.

  In the present embodiment, the upper and lower connection plates 11 are arranged from above, as shown in FIG. 3, for example, at approximately the center of the region corresponding to the back suction port 4 in the vertically stacked upper heat exchanger 6 and lower heat exchanger 7. Insert the upper heat exchanger 6 and the lower heat exchanger 7 so as to sandwich them, and fix the mounting pieces 11a and 11b to the outdoor unit bottom plate 10 with screws.

  Thereby, as shown in FIG. 4, the upper and lower connecting plates 11 are inserted into the gaps between the fins of the upper heat exchanger 6 and the lower heat exchanger 7, and the upper heat transfer tube 6 a of the upper heat exchanger 6 is directed downward. The upper heat exchanger 6 and the lower heat exchanger 7 are pressed against the outdoor unit bottom plate 10 and held. Therefore, the shift | offset | difference to the front and rear, right and left of the approximate center part of the upper heat exchanger 6 and the lower heat exchanger 7 is prevented. The upper and lower connection plates 11 are not limited to one, and may be appropriately arranged using two or more to fix the upper heat exchanger 6 and the lower heat exchanger 7.

  In FIG. 5, 12 is a figure which shows the up-and-down connection board of another Example of this invention. Here, the upper and lower connection plates 12 are divided into two, and the upper and lower ends 12c and 12d are formed as sheet metal connection plates 12A and 12B having an L shape. In addition, the inside of these connection plates 12A and 12B is cut according to the piping shape of the heat transfer tube.

  The connection plates 12A and 12B are connected to the upper ends 12c and 12d of the L-shape, for example, at approximately the center of the region corresponding to the rear suction port 4 in the vertically stacked upper heat exchanger 6 and lower heat exchanger 7. The mounting pieces 12 a and 12 b are screwed to the outdoor unit bottom plate 10 by pressing from the front and rear so as to get on the upper heat transfer tube 6 a of the upper heat exchanger 6.

  Accordingly, the connection plates 12A and 12B are inserted into the gaps between the fins of the upper heat exchanger 6 and the lower heat exchanger 7, and the upper and lower refrigerant tubes 6a on the upper side of the upper heat exchanger 6 are pushed downward to The heat exchanger 6 and the lower heat exchanger 7 are pressed against the outdoor unit bottom plate 10 and held. Therefore, the shift | offset | difference to the front and rear, right and left of the approximate center part of the upper heat exchanger 6 and the lower heat exchanger 7 is prevented. Note that the upper and lower connection plates 12 of this embodiment do not necessarily have to be attached with one connection plate 12A and the other connection plate 12B facing each other.

  The upper and lower connection plates 12 are not limited to the region corresponding to the rear air inlet 4 of the outdoor unit in the upper heat exchanger 6 and the lower heat exchanger 7, and the rear air inlet 4, the left air inlet 2, and the right air inlet You may attach to the area | region corresponding to any one or more of three.

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 upper-lower connection board of the Example of this invention. It is a perspective view of the upper and lower two-stage vertically stacked heat exchanger held by the upper and lower connection plates of the same embodiment. It is attachment explanatory drawing of the upper-lower connection board of another Example. 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: outdoor unit bottom plate, 11: vertical connection plate, 11a, 11b: mounting piece, 12: vertical connection plate, 12A, 12B: connection plate, 12a, 12b: mounting piece, 12c, 12d: upper end.

Claims (3)

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,
The outdoor unit of an air conditioner characterized in that the upper heat exchanger and the lower heat exchanger are fixed to the outdoor unit bottom plate by upper and lower connection plates in a region corresponding to any one or more of the suction ports. Machine. In the outdoor unit of the air conditioner according to claim 1,
The upper and lower connecting plates are made of U-shaped sheet metal, and the upper heat exchange from above the upper heat exchanger so that the U-shaped portion sandwiches the upper heat exchanger and the lower heat exchanger together. An outdoor unit for an air conditioner, wherein the outdoor unit is fitted in a gap between a fin and a fin of the lower heat exchanger, and a lower end is fixed to the outdoor unit bottom plate. In the outdoor unit of the air conditioner according to claim 1,
The upper and lower connection plates are made of two sheet metal connection plates whose upper ends are formed in an L shape, and one of the connection plates is placed on the upper heat transfer tube of the upper heat exchanger. The upper and lower two tiers are pressed from the inside of the upper and lower heat exchangers of the upper and lower two tiers, and the other connecting plate is placed on the upper heat transfer tube of the upper heat exchanger so that the L-shaped tip is on the upper heat exchanger tube An outdoor unit for an air conditioner, which is pressed from the outside of a vertically stacked upper heat exchanger and a lower heat exchanger, and the lower ends of the two connection plates are fixed to the outdoor unit bottom plate, respectively.

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