Four-way valve electric control board and air conditioner

Abstract

The invention discloses a four-way valve electric control board and an air conditioner. The four-way valve electric control board comprises an electric control board and a four-way valve driving circuit arranged on the electric control board. the circuit comprises an H-bridge switch circuit, a first bridge arm switch circuit and a second bridge arm switch circuit, wherein an upper bridge arm switch of the first bridge arm circuit works when receiving a first switch driving signal so as to drive the alternating-current four-way valve to work; or the upper bridge arm switch of the first bridge arm circuit drives a lower bridge arm switch of the second bridge arm circuit to be switched on when conducting, so that a positive polarity power supply is output to the direct-current four-way valvethrough a direct-current four-way valve access end; and when an upper bridge arm switch of the second bridge arm circuit is on, the lower bridge arm switch of the first bridge arm circuit is driven tobe conducted, so that a negative-polarity power supply is output to the direct-current four-way valve through the direct-current four-way valve access end. The four-way valve electronic control boardhas the advantages that the compatibility of the four-way valve electric control board is improved.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a four-way valve electric control board and an air conditioner. Background technique [0002] The four-way valve is divided into AC four-way valve and DC four-way valve, and the driving power of the two is also divided into AC driving power and DC driving power. Generally, the driving control circuits and driving power of the two need to be independent , and the two are incompatible. Usually, two drive control circuits need to be designed on the same PCB for the two four-way valves, which occupies a large PCB space and is not conducive to reducing the size of the air conditioner. Alternatively, two corresponding PCB boards are designed for two types of four-way valve boards, which requires at least one electric control board to be used in conjunction with each four-way valve, which will result in low versatility of the electric control board and reduce the Enterpris...

AI Technical Summary

Problems solved by technology

[0002] The four-way valve is divided into AC four-way valve and DC four-way valve, and the driving power of the two is also divided into AC driving power and DC driving power. Generally, the driving control circuits and driving power of the two need to be independent , and the two are incompatible

Usually, it is necessary to design two drive control circuits on the same PCB board for two types of four-way valves, which occupies a large PCB space and is not conducive to reducing the size of the air conditioner

Alternatively, two corresponding PCB boards are designed for two types of four-way valve boards, which requires at least one electric control board to be used in conjunction with each four-way valve, which will result in low versatility of the electric control board and reduce the Enterprise Development Efficiency

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