JPH0632932U - Air conditioner outdoor unit - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the heat dissipation efficiency of the heat sink used for the operation control device of the outdoor unit of the air conditioner. [Structure] The figure is a part of an operation control device for an outdoor unit of an air conditioner. In the figure, 3 is a part of a partition plate that divides the interior of the outdoor unit into a heat exchanger chamber and a machine chamber. The printed wiring board 13, the capacitors C1 and C2, the transistor module 14, and the like, which constitute the operation control device of the outdoor unit, are protected by the electric component box 9. A heat sink 11 for radiating the heat of the transistor module 14 and a heat sink cover 12 for introducing the air in the electric component box 9 into the heat sink 11 are fixed to one side of the electric component box 9. The heat sink 11 has a tubular shape in which the inside is divided into a plurality, and a groove (unevenness) similar to the groove (unevenness) 15 formed outside, for example, parallel to the air flow is provided on the heat dissipation surface inside the cylinder. . With such a configuration, the heat radiation area of the heat sink 11 is increased and the air in the electric component box 9 passes through the heat sink 11 and escapes in the direction of the arrow, so that the heat radiation efficiency is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outdoor unit of an air conditioner, and more particularly to the structure of a heat sink used in an operation control device such as a compressor.

[0002]

[Prior art]

 The main body of the outdoor unit of the air conditioner is composed of, for example, a base 1 and a box body 2 as shown in FIG. 1, and the inside of the main body is partitioned by a partition plate 3 into a heat exchanger room 4 and a machine room 5. There is. An outdoor heat exchanger 6 and an outdoor blower 7 are arranged in the heat exchanger room 4, and a compressor 8 is protected in the lower part of the machine room 5 and an electric parts box 9 is protected in the upper part to protect the compressor 8 and the like. An operation control device 10 for controlling the operation is arranged. This operation control device 10 is mainly composed of an inverter device for controlling the so-called compressor 8 by an inverter. Since the transistor module used in this inverter device becomes high in temperature, for example, as shown in FIG. The heat sink 11 having a plurality of heat radiation fins 11a is used to radiate heat. By the way, in order to improve the heat dissipation of the heat sink 11, it is necessary to air-cool the fin portion 11a, but conventionally, for example, as shown in FIG. The heat sink 11 and the heat sink cover 12 for introducing the air in the electric component box 9 are attached to the heat sink 11 to assist the heat dissipation by utilizing the air flow accompanying the rotation of the outdoor blower 7.

[0003]

[Problems to be solved by the device]

 However, since the fins of the conventional heat sink 11 are in an open state and the release surface faces the heat exchanger chamber 4, most of the air introduced by the heat sink cover 12 is in the heat exchanger. There was little air that went straight between the fins because it was pulled by the air flow in chamber 4 toward the release surface. Therefore, in the past, the heat sink cover 12 was formed to be slightly longer and a part of it was covered with the heat sink 11 so that the air flowing between the fins could go straight as much as possible, but with such a configuration the air flow is improved. Even if the heat sink 11 is covered, a part of the heat sink 11 is covered with the heat sink cover 12, so that the cooling efficiency is not improved, and moreover, the size of the heat sink cover 12 is large, so that there is a cost loss. Therefore, it is an object of the present invention to provide an outdoor unit for an air conditioner that solves these problems.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and a partition plate divides the inside of the main body consisting of a base and a box into a heat exchanger room and a machine room. Machine and the like, and an operation control device for operating and controlling the compressor and the like, which is protected by an electric parts box, is arranged on the upper part, and a plurality of parts are provided on one side of the electric parts box facing the heat exchanger chamber side. A heat sink having a heat radiation fin and a heat sink cover for introducing air in the electric component box to the heat sink so that heat generated from the electric components of the operation control device is radiated by the heat sink. In the outdoor unit of the air conditioner, the radiating fins of the heat sink have a cylindrical shape with a plurality of internal sections, and a plurality of grooves parallel to the air flow are provided on each radiating surface. It was in the door.

[0005]

[Action]

 With the above configuration, the heat radiation fins of the heat sink are not open type, but the inside is divided into multiple stages, so all the air introduced by the heat sink cover passes through the inside of the heat sink. Moreover, since a plurality of grooves parallel to the air flow are formed on the heat dissipation surface, the heat dissipation area is large, and the heat dissipation efficiency can be improved.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an outdoor unit of an air conditioner, in which 1 is a base, 2 is a box, and 3 is a partition that divides the main body into a heat exchanger room 4 and a machine room 5. It is a plate. An outdoor heat exchanger 6 and an outdoor fan (propeller fan) 7 for heat radiation are arranged in the heat exchanger chamber 4, a compressor 8 and others are arranged in the lower portion of the machine chamber 5, and an electric parts box is arranged in the upper rear portion. An operation control device 10 which is protected by 9 and controls the operation of the compressor 8 and others is arranged. One side of the electrical component box 9 projects a little toward the heat exchanger chamber 4 side from the partition plate 3 that divides the inside of the main body including the base 1 and the box body 2 into the heat exchanger chamber 4 and the machine chamber 5. The heat sink 11 that radiates the heat emitted from the electric components (transistor module) and the heat sink cover 12 that introduces the air in the electric component box 9 to the heat sink 11 are attached to the heat sink 11. ing.

FIG. 2 is an enlarged view of an essential part of the present invention. Inside the electric parts box 9, electric parts such as a printed wiring board 13, capacitors C1 and C2, and a transistor module 14 are arranged. However, the transistor module 14 is fixed at a predetermined position on the rear portion of the heat sink 11. As described above, 12 is a heat sink cover for introducing the air in the electric component box 9 to the heat sink 11. By the way, the feature of the present invention is that the fin portion of the heat sink 11 is formed into a cylindrical shape with the inside divided into a plurality of stages, and although it is not shown in FIG. 2, it is similar to that formed on the front side. Multiple grooves (concavities and convexities) 15 are provided on the heat dissipation surface inside the cylinder in parallel with the air flow, and the heat sink cover 12 has the minimum size necessary to introduce air into the heat sink 11. Is. With such a configuration, the heat radiation surface of the heat sink 11 increases, and all the air introduced from the electric component box 9 passes through the inside of the heat sink 11.

[0008]

[Effect of device]

 In the case of an outdoor unit equipped with a heat sink as described above, all the air introduced by the heat sink cover passes through the inside of the heat sink because the fin portion of the heat sink has a tubular shape with multiple stages. In addition, since the heat dissipation surface of the heat sink has multiple grooves that are parallel to the air flow, the heat dissipation area is large and the heat dissipation efficiency is improved. It is also cost effective because it only needs to be installed on the side. In addition, the improved heat dissipation efficiency of the heat sink extends the life of the electrical components and improves the reliability of the outdoor unit.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an outdoor unit according to the present invention and a conventional example.

FIG. 2 is an enlarged perspective view of an essential part showing an embodiment of the present invention.

FIG. 3 is an enlarged perspective view of a main part showing a conventional example.

[Explanation of symbols]

 1 Base 2 Side Plate 3 Partition Plate 4 Heat Exchanger Room 5 Machine Room 6 Outdoor Heat Exchanger 7 Outdoor Blower 8 Compressor 9 Electrical Parts Box 10 Operation Control Device 11 Heat Sink 12 Heat Sink Cover 14 Transistor Module 15 Groove (Uneven)

Claims (2)

[Scope of utility model registration request] 1. A main body consisting of a base and a box is divided into a heat exchanger room and a machine room by a partition plate, a compressor and the like are arranged at the lower part of the machine room, and an electric parts box is provided at the upper part. An operation control device that protects and controls the operation of the compressor and the like is arranged, and a heat sink having a plurality of heat radiation fins is provided on one side of the electric component box facing the heat exchanger chamber side, and the electric heat is provided on the heat sink. A heat sink cover for introducing air in a parts box is attached, and in the outdoor unit of the air conditioner, the heat radiating fin portion of the heat sink is internally radiated by the heat sink. An outdoor unit for an air conditioner, wherein the outdoor unit is formed into a cylindrical shape. 2. The outdoor unit for an air conditioner according to claim 1, wherein a plurality of grooves parallel to the air flow are provided on the heat dissipation surface of the heat sink having the cylindrical heat dissipation fin portion.