JP3276236B2 - Outdoor unit of air conditioner - Google Patents

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 FIG. 2 shows an example of an outdoor unit of a conventional separation type air conditioner. The interior of the casing 1 of the outdoor unit is divided into right and left by a partition plate 2, and a machine room 3 is formed on the right side and a heat exchange room 4 is formed on the left side.

In the heat exchange chamber 4, an L-shaped heat exchanger 9, a propeller fan 10, a motor 14, and the like are arranged. This L
The heat exchanger 9 having a letter shape is opposed to an air inlet 11 formed on the back surface 1a of the casing 1 and an air inlet 12 formed on the left side surface 1b. Further, the propeller fan 10 is disposed so as to face an air outlet 13 formed in the front surface 1c of the casing 1.

A compressor 5 and a control box 6 are provided in a machine room 3.
And so on. The control box 6 houses control devices such as a power transistor, a control board, a capacitor, and a noise filter.

A plurality of radiating fins 18a to 18d for cooling these control devices are exposed in a ventilation path in the heat exchange chamber 4 , and the radiating fins 18a to 18d are separated from each other by a partition plate. Parallel to 2 and
It is arranged so as to be parallel to the rotation axis of the Loperafuan 10 .

When the propeller fan 10 is driven to rotate by the motor 14, outside air flows from the air intakes 11 and 12 to the heat exchange chamber 4.
After the temperature rises or falls by exchanging heat with the refrigerant in the process of flowing through the heat exchanger 9, it is urged by the propeller fan 10 and discharged from the outlet 13 to the outside. At the same time, a part of the outside air flowing through the heat exchanger 9 is urged by the propeller fan 10 to move in the tangential direction.

[0007]

In the above-mentioned conventional outdoor unit, the cooling air sufficiently hits the radiation fin 18a in the front row of the plurality of radiation fins 18a to 18d.
Although the radiation fins 18a sufficiently exhibit the radiation function,
Since the cooling air flows around the radiation fins 18b, 18c, and 18d in the rows and thereafter, the radiation function cannot be sufficiently exhibited.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its gist is that the inside of the casing is divided into a heat exchange chamber and a machine room by a partition plate. A heat exchanger and a propeller fan are disposed in the heat exchange chamber, and a control box is disposed in the machine room. A plurality of radiating fins for cooling control devices disposed in the control box are provided as described above. In an outdoor unit of an air conditioner exposed in a ventilation path in a heat exchange chamber, the plurality of radiating fins are spaced apart from each other.
Parallel to the partition plate, and the rotation of the propeller
It is arranged so that it is parallel to the
Each of the radiating fins is urged by the above propeller fan.
The air conditioner has an outdoor unit provided with a through-hole through which cooling air flowing in a tangential direction is provided.

[0009] The through-hole is formed so as to follow the flow of the cooling air.
Can be formed obliquely with respect to a plurality of heat radiation fins.

[0010]

According to the present invention, the radiation fins in the second and subsequent rows are also cooled by the cooling air flowing through the through holes.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIG. Through holes 19a to 19d through which cooling air passes are formed in the plurality of radiation fins 18a to 18d, respectively. These through holes 19a
19d is oblique to the radiation fins 18a to 18d,
That is, it is desirable that the holes are formed so as to follow the flow of the cooling air urged by the propeller fan 10 and directed in the tangential direction.

Although not shown, each radiating fin
A plurality of through holes 19a to 19d are formed in 18a to 18d at intervals. The other configuration is the same as that of the conventional one shown in FIG. 2, and corresponding members are denoted by the same reference numerals.

The cooling air urged by the propeller fan 10 and directed in the tangential direction hits the front surface of the radiating fins 18a in the front row, and the radiating fins 18b in the second and subsequent rows.
At the same time as flowing around 18d, part of the cooling air passes through hole 19a
Through the heat fins 18a-1
Cool 8d.

[0014]

According to the present invention, a plurality of radiation fins are provided.
Parallel to the partition at a distance from each other, and
It is arranged so that it is parallel to the rotation axis of Loperafuan
To each of these heat dissipation fins
Through which cooling air is urged by
Because of the through hole, it was urged by the propeller
Cooling air flowing in the tangential direction of
At the same time as flowing around the radiation fins in the second and subsequent rows.
A part of this cooling air is blown through a plurality of radiation fins.
Since the cooling fins in the second and subsequent rows are cooled by the cooling air flowing through the through holes, the cooling fins in the second and subsequent rows are sequentially passed through the through holes. As a result, the radiation performance of the radiation fins in the second and subsequent rows can be improved with a very simple and inexpensive configuration.

If the through holes are obliquely formed with respect to a plurality of radiating fins so as to follow the flow of the cooling air, the cooling air can be cooled by two.
Since it can be guided smoothly to the radiating fins after the row,
The radiation performance of these radiation fins can be further improved.

[Brief description of the drawings]

1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a vertical elevation view of an outdoor unit, and FIG. 1B is a partial perspective view of a radiation fin.

FIG. 2 shows a schematic configuration of an outdoor unit of a conventional air conditioner. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Partition plate 3 Machine room 4 Heat exchange room 9 Heat exchanger 10 Fan 6 Control box 18a-18d Radiation fin 19a-19d Through hole

Claims (2)

(57) [Claims] 1. A device partition to the housing into a heat exchange chamber and a machine chamber by a partition plate, the heat exchanger in the heat exchange chamber and the machine room to the control box with disposing a propeller off <br/> en In the outdoor unit of the air conditioner, which is disposed and exposes a plurality of radiating fins for cooling control devices disposed in the control box to a ventilation path in the heat exchange chamber, Radiating fins spaced apart from each other
Parallel to the partition plate and the propeller
And a plurality of these
Attached to each radiation fin with the above propeller
An outdoor unit for an air conditioner, wherein a through-hole is provided for allowing cooling air to flow in a tangential direction when the cooling air is urged. 2. The through-hole extends along the flow of the cooling air.
Outdoor unit of claim 1 air conditioner, wherein a bored obliquely intersects against sea urchin the radiation fins.