Rotary type four-way reversing valve and air conditioner

Abstract

The invention discloses a rotary type four-way reversing valve and an air conditioner. The rotary type four-way reversing valve comprises a valve body and a valve element, a fluid inlet, a fluid outlet, a first interface and a second interface are formed in the valve body, the valve element is in a cylindrical shape, the valve element is rotatably arranged in the valve body, the valve element andthe valve body are coaxial with each other, and the excircle surface of the valve element is in seal fit with the inner circle surface of the valve body; and two centrosymmetric flow guiding parts arearranged on the valve element, the fluid inlet communicates with the first interface and the second interface in a switched mode through the two flow guiding parts, and correspondingly the fluid outlet communicates with the second interface and the first interface in a switched mode. According to the rotary type four-way reversing valve and the air conditioner, reversing is conducted through rotation of the valve element in the valve body, the situation of valve element deformation cannot occur, therefore normal reversing of the four-way reversing valve can be ensured, and the service life ofthe four-way reversing valve is prolonged.

Description

technical field [0001] The invention relates to a four-way reversing valve used in a refrigeration device, and more specifically relates to a rotary four-way reversing valve and an air conditioner. Background technique [0002] The four-way reversing valve is the circulation path of refrigerant in the switching system on the refrigeration device (such as an air conditioner). The four-way reversing valve is used to change the functions of the evaporator and condenser in the air conditioner to realize cooling, heating and defrosting. It is the key control valve in the heat pump unit. [0003] The traditional four-way reversing valve mainly relies on the sliding of the middle slider set in it to realize the pipeline reversing effect on the evaporation side and the condensation side, but the use of sliders will have the following two defects: [0004] One is that the working pressure of the four-way reversing valve will be too high during use, which will cause the slider to def...

AI Technical Summary

Problems solved by technology

[0004] One is that the working pressure of the four-way reversing valve will be too high during use, which will cause the slider to deform, making the reversing of the four-way reversing valve invalid, and affecting the service life of the four-way reversing valve;

[0005] The second is that when the four-way reversing valve is in use, the intermediate flow rate will be too small, and there will be liquid hammer damage, which will affect the reliability of the four-way reversing valve

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