JPH0514099Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an outdoor unit used, for example, as a condenser constituting a refrigeration circuit.

[Conventional technology]

Fig. 5 is a side view of a conventional outdoor unit that is incorporated into a conventional general refrigeration circuit shown in Fig. 8 and functions as a condenser, and Fig. 6 is a front view of the outdoor unit shown in Fig. 5. , FIG. 7 is a perspective view of the finch tube heat exchanger and the base plate that constitute the outdoor unit shown in FIG. 5.

In these figures, 1 is an outdoor unit, and 5 is a finch tube heat exchanger, which includes a heat exchanger tube 5a through which a refrigerant passes, and a large number of tubes through which the heat exchanger tube 5a is inserted, which are arranged in sequence in parallel while maintaining a predetermined air gap. It is composed of two heat transfer fins 5b and left and right tube plates 5c located on both sides thereof. As shown in FIG. 7, the tube sheet 5c is one tube sheet 5c that is stretched over a pair of finch-tube heat exchangers 5, 5, with the lower flange portion 5d placed on the base plate 13. The pair of finch tube heat exchangers 5, 5 are screwed together.
are each configured to be held in a substantially vertical direction. Reference numeral 4 denotes a blower disposed above the pair of Finch-Ube type heat exchangers 5, 5; 14 is a duct having a rectangular cross-section; It is placed at the top of the. 2 is a fan guard whose upper part is formed into a net shape,
A bell mouth-shaped portion (not shown) is formed at the bottom thereof and is attached to the duct portion 14. The conventional outdoor unit is constructed as described above, and when used as the condenser 11 shown in FIG. Gas refrigerant and air to be heat exchanged which is sucked by the blower 4 from the front and rear sides 5d of the pair of finch tube heat exchangers 5, 5 and sent upward through the fan guard part 2. It has a function of exchanging heat and condensing and liquefying the gas refrigerant supplied from the compressor 10.

Therefore, under installation conditions where, for example, the wall surface of a building is close to the front and rear sides 5d of the pair of finch tube heat exchangers 5, 5,
A problem arises in that the amount of air to be heat exchanged drawn in by the blower 4 is insufficient and the heat exchange capacity is reduced, and the outdoor unit is not able to perform to its full potential, resulting in insufficient refrigeration capacity.

Further, Japanese Utility Model Publication No. 57-26101 describes an outdoor unit having an air suction port below the opposing side plate that intersects at right angles to the heat transfer tubes of a V-shaped heat exchanger.
However, the front and rear panels, the left and right panels, and the top panel are reinforced with screws to a box-shaped welded metal frame to support these heavy objects.

[The problem that the idea aims to solve]

Conventional outdoor units are configured as described above, so in the case of the former, in order to prevent a decrease in heat exchange capacity, when installing the outdoor unit, a pair of upper and lower finch-tube type heat Suction space must be provided in front and behind the front and rear sides 5d of the exchangers 5, 5, and when multiple units are installed together, the installation area must be increased to ensure suction space for each unit. There were problems such as the size of the space.

In the case of the latter, air can be taken in from the opposite side plate that has the air suction port, but it is difficult to take in air from other opposite side plates, and when multiple units are installed together, the former To a lesser extent, there were problems in that a sufficient amount of airflow required for heat exchange could not be obtained, and the structure was complicated, requiring more man-hours for assembly, leading to increased costs.

This invention was developed to solve the above problems, and when outdoor units are installed together, they can be joined together or installed close to each other, and even when installing individual units, it is possible to The suction port of the heat exchanger can be installed close to a wall, etc., and the heavy heat exchanger can be supported with sufficient strength even without the box-shaped welded metal frame and front and rear side panels. The purpose is to obtain an outdoor unit with a simple structure.

[Means for solving problems]

This device has an air suction port and a surface portion located above the air suction port with a V-shaped hole opening upward, and the peripheral edges of this surface portion are bent outward. and a pair of left and right side plates each having a U-shaped cross-section, tube plates at both ends attached to the periphery of the V-shaped hole in the left and right side plates, heat transfer fins arranged in parallel between the tube plates, and the fins. A finch-tube heat exchanger having a V-shaped cross section and a heat exchanger tube through which a heat medium passes through a tube plate, and a finch-tube heat exchanger that is disposed above the finchtube heat exchanger and has heat exchanger tubes through which a heat medium passes through a tube plate. The above purpose is achieved by constructing an outdoor unit by providing an air suction port and a blower that sucks air to be heat exchanged from the front, rear, side, and lower sides of the finch tube heat exchanger and sends it upward. .

[Effect]

The outdoor unit according to this invention has an air suction port on a pair of left and right side plates, and a tube plate of a finch-tube heat exchanger is attached to the upper part of the air suction port.
By forming the heat exchanger in the shape of a letter, the air to be heat exchanged can be taken in from the air suction port, the front, rear side, and bottom of the finch tube heat exchanger.

〔Example〕

FIG. 1 is a front view of an outdoor unit showing an embodiment of this invention, and FIG. 2 is a side view of the outdoor unit shown in FIG. 1.

In these figures, 1, 2, 4, 5, 5a,
5b is the same as or corresponds to the conventional device shown in FIGS. 5 to 7.

8 is a pair of left and right side plates, and air intake ports 9;
and a flat part located above the air suction port 9 and having a vent hole 15 that opens upward in a V-shape;
The peripheral edge portions of this flat portion are each bent outward to form a U-shaped cross section. 17 is
The heat exchanger support member has a ∧-shaped cross section and is installed between the lower edges of the V-shaped holes 15 in the left and right side plates 8. Reference numeral 5 denotes a heat transfer tube 5a through which refrigerant supplied from the compressor passes, a large number of heat transfer fins 5b through which the heat transfer tube 5a is inserted, and which are sequentially arranged in parallel with each holding a predetermined space, and on both sides thereof. In this embodiment, two finch tube heat exchangers 5 are placed on the heat exchanger support member 17, and the The outer side surfaces of both the left and right tube plates 5c of the heat exchanger 5 are connected to the inner side surfaces 15a of the periphery of the V-shaped hole 15 of the left and right side plates 8, respectively.
The cross-sectional shape is formed into a V-shape by screwing with the screw 16. 4 is a blower disposed above the V-shaped heat exchanger 5;
Reference numeral 18 denotes a duct portion having a rectangular cross-sectional shape, and is attached to the upper portions of the left and right side plates 8. In the outdoor unit configured as described above, air to be heat exchanged for heat exchange with the refrigerant supplied from the compressor is sucked in from the front and rear sides 5d of the finch tube heat exchanger 5 by the blower 4. At the same time, air can be inhaled through the air suction ports 9 of the left and right side plates 8.

Therefore, as shown in FIG. 4, even when the units are joined together and installed together, the air suction ports 9 of the left and right side plates 8 of each unit and the lower space 5e of the heat exchanger 5 of each unit are By forming an air passage section that communicates in the front-rear direction, a sufficient amount of heat-exchanged air necessary for heat exchange can be obtained, and each unit can now achieve the required capacity.

[Effect of idea]

This device has an air suction port and a surface portion located above the air suction port with a V-shaped hole opening upward, and the peripheral edges of this surface portion are bent outward. and a pair of left and right side plates each having a U-shaped cross-section, tube plates at both ends attached to the periphery of the V-shaped hole in the left and right side plates, heat transfer fins arranged in parallel between the tube plates, and the fins. A finch-tube heat exchanger having a V-shaped cross section and a heat transfer tube through which a heat medium passes through a tube plate, and a blower disposed above the finch-tube heat exchanger. Since the outdoor unit is configured by this, the V-shaped finch tube heat exchanger itself is installed on the left and right side plates without the box-shaped welded metal frame and front and rear side plates, making it a heavy heat exchanger. This has the effect of simplifying the structure, reducing assembly man-hours, and reducing costs. In addition, as mentioned above, there is no need for the front and rear side plates to maintain strength, so the air to be heat exchanged is sucked in from the front and rear sides and from the bottom of the pair of finch-tube heat exchangers, and the airflow required for heat exchange is Therefore, even if units are joined together or installed in close proximity, there will be no reduction in heat exchange ability, and even if individual units are placed very close to a wall, the same effect will occur. This has the effect that the installation area can be reduced without any reduction in performance, and the restrictions on installation conditions of conventional devices can be removed.

[Brief explanation of the drawing]

Figures 1 and 2 are front and side views of the outdoor unit of the present invention, Figure 3 is an exploded perspective view showing essential parts of the outdoor unit shown in Figure 1, and Figure 4 is an embodiment of the present invention. Figure 5 is a side view of a conventional outdoor unit, Figure 6 is a front view of the outdoor unit shown in Figure 5, and Figure 7 is a configuration of the outdoor unit shown in Figure 5. FIG. 8 is a conventional general refrigeration circuit diagram, and FIG. 9 is a collective installation diagram of the conventional outdoor unit shown in FIG. 5. In these figures, 9 is an air intake port, 15
8 is a punch hole, 8 is a side plate, 5a is a heat transfer tube, 5b is a heat transfer fin, 5c is a tube plate, 15a is an inner surface of the periphery of the V-shaped hole 15 in the side plate 8, 5 is a finch tube heat exchanger, and 5d is a finch tube. type heat exchanger 5,
The front and rear parts of 5 and 4 are blowers. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] It has an air suction port 9 and a surface portion with a V-shaped punch hole 15 located above the air suction port, and the peripheral edge of this surface portion is bent outward to form a cross-section. A pair of left and right side plates 8 formed in a U-shape, tube plates 5c at both ends attached to the peripheral edges of the V-shaped holes 15 in the left and right side plates, heat transfer fins 5b arranged in parallel between the tube plates, and A heat transfer tube 5 through which a heat medium passes through the fins and the tube plate 5c.
a, the finch tube heat exchanger 5 having a V-shaped cross section, the air suction port 9 of the left and right side plates 8 disposed above the finch tube heat exchanger, and the finch tube heat exchanger 5 having a V-shaped cross section. Between the blower 4 that sucks air to be heat exchanged from the front and rear sides and bottom of the exchanger 5 and sends it upward, and the lower edge of the V-shaped hole 15 of the left and right side plates 8, which has a rectangular cross-sectional shape. An outdoor unit characterized by comprising an installed heat exchanger support member 17.