Electric control assembly, outdoor unit and air conditioner

Abstract

The invention discloses an electric control assembly, an outdoor unit and an air conditioner. The electric control assembly comprises a main controller, a rectifier bridge, a PFC circuit, a direct-current bus capacitor and a compressor IPM module; the rectifier bridge, the PFC circuit and the compressor IPM module are connected in sequence; the direct-current bus capacitor is connected in parallelwith an output end of the PFC circuit; the main controller is connected with the PFC circuit and the compressor IPM module; the electric control assembly further comprises a box body, a first circuitboard and a second circuit board; the box body is used for being detachably connected with a liquid storage tank; the first circuit board, the rectifier bridge, the compressor IPM module, the PFC circuit and the direct-current bus capacitor are arranged on the first circuit board; the first circuit board is arranged in the box body, and is in contact with the liquid storage tank to dissipate heat; and the main controller is arranged on the second circuit board. The heat dissipation rate of the electric control assembly is increased by using the low-temperature working environment of the liquid storage tank.

Description

technical field [0001] The invention relates to the technical field of electric appliance control, in particular to an electric control component, an outdoor unit and an air conditioner. Background technique [0002] In air conditioners, refrigerators and other electrical equipment equipped with frequency converters, PFC, IPM and other circuits are generally installed, and these circuit components will generate heat during work. If they are not dissipated in time, it is likely to affect the electrical equipment. work performance. For this reason, it is necessary to cool down the heating elements such as PFC and IPM to ensure their reliability and service life. [0003] At present, most of the above-mentioned heating elements adopt the method of connecting an external metal radiator. For example, in an air conditioner, it is also possible to dissipate heat through an outdoor unit fan. This method needs to increase the power of the fan and increase the volume of the radiator,...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the above-mentioned heating elements adopt the method of connecting an external metal radiator. For example, in an air conditioner, it is also possible to dissipate heat through an outdoor unit fan. This method needs to increase the power of the fan and increase the volume of the radiator, resulting in The heat dissipation cost has increased, but the heat dissipation efficiency is still low, and the temperature of heating elements such as PFC and IPM is still above 100 degrees

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