Outdoor unit for air conditioner

Abstract

The inside of an outdoor unit body (1) is partitioned by a partition plate (7) into a heat exchange chamber (8A) for receiving a heat exchanger (10) and an outdoor fan (13) and into a machine chamber (8B) for receiving a compressor (15) and piping (5) or the like. The partition plate (7) is divided by a horizontal plane into an upper partition plate (7A) and a lower partition plate (7B). An electric component mounting surface (S) is provided on that surface of the upper partition plate (7A) which is on the machine chamber (8B) side. On the electric part mounting surface (S) is mounted a control board (22) on which an electric component (D) for controlling drive of electrically driven components such as a fan and a compressor is mounted. The construction improves an installation structure for an electric component box to reduce cost and provides the control board (22) and the electric component (D) with a sufficient cooling effect.

Description

technical field [0001] The present invention relates to an outdoor unit of an air conditioner in which an arrangement structure of a control board on which electric components for controlling electric components such as a compressor are mounted is improved. Background technique [0002] The inside of the main body of the outdoor unit, which is the housing of the outdoor unit constituting the air conditioner, is divided into two chambers, left and right, by a partition plate. One of the divided rooms is the machine room for piping components such as the compressor and four-way switching valve, and the other room is the heat exchange room for the outdoor heat exchanger and outdoor blower. [0003] The drive of electric components such as the above-mentioned compressor, four-way switching valve and outdoor blower is controlled by electric components such as compressor drive components and rectifiers installed on the control board. Conventionally, these electrical components ar...

AI Technical Summary

Problems solved by technology

However, the above-mentioned iron plate has poor heat transfer performance compared to a material with good heat dissipation such as aluminum constituting a heat sink.

[0007] Therefore, even if the inverter substrate is simply brought into contact with the outer plate and the separator as described in Japanese Patent Application Laid-Open No. 2006-214632, there is still a problem in terms of the heat dissipation efficiency of the inverter substrate.

In addition, it is also possible to separate the electrical components with better heat dissipation from the control circuit or install an auxiliary cooling device to compensate for the heat dissipation, but on the contrary, the structure of the machine room will become complicated, resulting in poor manufacturability, and there is a problem in terms of cost. adverse effects

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