Heat dissipation apparatus of electric control box, electric control box and heat dissipation method

Abstract

The invention relates to a heat dissipation apparatus of an electric control box, the electric control box and a heat dissipation method. The heat dissipation apparatus comprises a contact type heat dissipation piece which is arranged on a heat source device in the electric control box, a fan which is arranged in the electric control box and used for heat dissipation, a temperature sensing bulb which is arranged on the contact type heat dissipation piece and used for detecting the temperature of the contact type heat dissipation piece, and a main board which is used for controlling the workingstate of the fan according to the temperature detected by the temperature sensing bulb. According to the technical scheme provided by the invention, the temperature of the contact type heat dissipation piece is detected through the temperature sensing bulb, the working state of the fan is controlled according to the temperature detected by the temperature sensing bulb, the heat accumulated by theheat source device in the electric control box is led out by the contact type heat dissipation piece and then directly dissipated by the fan in a cooling manner, and the heat dissipation effect is greatly improved. In addition, because the working state of the fan can be flexibly controlled according to the temperature detected by the temperature sensing bulb, on-off, energy consumption and the heat dissipation effect of the fan are accurately controlled, and extra heat generated by continuous operation of the fan is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of heat dissipation of an electric control box, in particular to a heat dissipation device for an electric control box, an electric control box and a heat dissipation method. Background technique [0002] With the vigorous development of my country's real estate construction industry, commercial air conditioners are playing an increasingly important role in it. However, the limited building roof area restricts the size and quantity of the units. Therefore, the market urgently needs compact and energy-saving units. However, for compact units, there is a problem: when the size shrinks, the electric control box of the unit also becomes smaller, and the heat dissipation of its internal components becomes very bad, seriously affecting the life and operational reliability of electronic components . [0003] At present, the industry generally adopts the method of "heat sink + fixed frequency fan" to dissipate hea...

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a heat dissipation device for an electric control box, an electric control box and a heat dissipation method to solve the problem of heat conduction due to the effect of partitions and air when heat sinks are used for heat dissipation inside the electric control box in the prior art. The efficiency is not high, and the fan runs all the time, the problem of high energy consumption and high heat

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