JPH06272903A - Outdoor device of air conditioner - Google Patents

Abstract

PURPOSE:To reduce an air flowing resistance passing through a lower part of a heat exchanger by a method wherein the heat exchanger is applied as a plate-fin and tube type heat exchanger having a plurality of rows of tubes in its forward and rearward direction and the lower part of the front row is recessed. CONSTITUTION:An inside part of a device easing 20 of an outdoor device is divided by a partition plate 21 into an upper segment and a lower segment. A compressor chamber 22 is formed below the partition plate 21 and a heat exchanger chamber 23 is formed above the partition plate 21. A heat exchanger 40 within the heat exchanger chamber 23 is applied as a plate-fin and tube type heat exchanger in which a plurality of rows of tubes are arranged in its forward or rearward direction, the lower part of the front row is recessed to cause the front one row to be shortened. With such an arrangement as above, a flow resistance of air sucked through an air intake port 28a and passing through the lower part of the heat exchanger 40 is reduced, resulting in that an amount of air passing through this part is increased and then a heat exchanging performance at this part can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for an air conditioner.

[0002]

2. Description of the Related Art The applicant has applied for a patent for the outdoor unit shown in FIG. The inside of the device casing 20 of this outdoor unit is vertically partitioned by a partition plate 21, a compressor chamber 22 is formed below the partition plate 21, and a heat exchanger chamber 23 is formed above the partition plate 21. There is. The partition plate 21 has a shape that gradually rises from the rear surface side toward the front surface side.

A horizontal compressor 24, a controller 25, a muffler 31, an accumulator 32, an oil tank 33, etc. are arranged in the compressor chamber 22, and a U-shaped heat exchanger 26 in the heat exchanger chamber 23. A blower 27 and the like are provided.

The U-shaped heat exchanger 26 is erected so as to face the air intakes 28a, 28b, 28c formed on the rear surface 20a, the left side surface 20b and the right side surface 20c of the heat exchanger chamber 23, respectively. There is. The blower 27 is arranged so as to face an exhaust port 29 provided on the front surface 20d of the heat exchanger chamber 23.

However, when the blower 27 is rotationally driven by the motor 30, the outside air is sucked into the heat exchanger chamber 23 through the air intake ports 28a, 28b, 28c, and becomes a refrigerant in the process of passing through the heat exchanger 26. After the temperature is raised or lowered by exchanging heat, it is urged by the blower 27 and discharged from the exhaust port 29.

[0006]

In the above-mentioned conventional outdoor unit, the air sucked from the lower part of the air intake port 28a and flowing through the lower part of the heat exchanger 26 is guided to the upper surface of the partition plate 21 and gradually. Since the direction of the heat exchanger 26 is changed upward, the flow resistance becomes larger than that of the air flow passing through the other parts of the heat exchanger 26. As a result, there is a problem that the amount of air flowing through the lower portion of the heat exchanger 26 decreases, and the heat exchange performance of this part deteriorates.

[0007]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above-mentioned problems, and its gist is to provide a partition plate for partitioning the inside of a container casing into upper and lower parts from the rear side to the front side. With a shape that gradually rises toward the side, a horizontal compressor is installed in the compressor chamber formed below the partition plate, and it is formed on the back surface in the heat exchanger chamber formed above the partition plate. In the outdoor unit of the air conditioner, in which the heat exchanger is erected so as to face the air intake port and the blower is disposed so as to face the exhaust port formed in the front surface of the heat exchanger chamber, An outdoor unit of an air conditioner, characterized in that the exchanger is a plate fin and tube type heat exchanger having a plurality of tube rows in the front-rear direction and a lower portion on the front row side is cut out.

[0008]

In the present invention, because of the above structure, the flow resistance of the air flowing through the lower part of the heat exchanger is reduced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIG. The heat exchanger 40 is a plate fin-and-tube heat exchanger having a plurality of (two in the figure) tube rows in the front-rear direction, and the front row is cut off by cutting out the lower portion on the front row side. It has been shortened. Other configurations are similar to those of the conventional one shown in FIG. 2, and corresponding members are designated by the same reference numerals.

Therefore, since the flow resistance of the air sucked from the air intake port 28a and passing through the lower portion of the heat exchanger 40 is reduced, the amount of air flowing through this portion is increased and the heat exchange performance of this portion is improved. .

When the heat exchanger 40 has three or more tube rows, the lower part thereof may be gradually shortened as it goes to the front row.

[0012]

According to the present invention, the heat exchanger is a plate fin-and-tube type heat exchanger having a plurality of tube rows in the front-rear direction, and the lower portion on the front row side is notched, so that the lower portion of the heat exchanger is The flow resistance of the flowing air is reduced. As a result, the amount of air flowing through the lower portion of this heat exchanger increases, and the heat exchange performance of this portion can be improved.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional elevation view showing an embodiment of the present invention.

FIG. 2 shows a schematic configuration of a conventional outdoor unit, (A)
Is a partially cutaway front view, (B) is a vertical sectional elevation view,
(C) is a cross-sectional view.

[Explanation of symbols]

 20 Enclosure 20a Rear 28a Air intake 20d Front 29 Exhaust port 21 Partition plate 22 Compressor room 24 Compressor 23 Heat exchanger room 40 Heat exchanger 27 Blower

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kenichi Miyazawa Kenichi Miyazawa 3-chome, Asahimachi, Nishibiwajima-cho, Nishikasugai-gun, Aichi Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory

Claims (1)

[Claims] 1. A partition plate for partitioning the inside of the container casing into upper and lower parts has a shape that gradually rises from the back side to the front side.
A horizontal compressor is installed in the compressor room formed below the partition plate, and heat is exchanged by facing the air intake formed on the back surface in the heat exchanger room formed above the partition plate. In an outdoor unit of an air conditioner in which an air conditioner is erected and an air blower is arranged so as to face an exhaust port formed in the front surface of the heat exchanger chamber, the heat exchanger is provided with a plurality of tubes in the front-rear direction. An outdoor unit for an air conditioner, which is a plate fin-and-tube heat exchanger having rows and has a lower portion on the front row side cut out.