Check valve and scroll compressor provided with same

Abstract

The invention discloses a check valve which comprises a check valve plate, a plurality of supporting parts extending outwards from the periphery of the check valve plate, and positioning columns extending from one side of the check valve plate. The invention further discloses a scroll compressor provided with the check valve. According to the check valve, the clearance volume is small, the check effect is good, thermal expansion of a high pressure refrigerant in an enthalpy-increasing pipeline can be effectively reduced, and the energy efficiency of the compressor when the enthalpy-increasing working condition is not started can be improved. Meanwhile, the check valve is simple in arrangement, convenient to manufacture and machine, low in cost, simple in check principle, and capable of being used for checking of enthalpy-increasing pipelines on vertical and horizontal scroll compressors as well as being used for check channels of enthalpy-increasing channel structures.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a check valve used in various heat pump systems such as multi-connected systems, refrigerating systems, and vehicle-mounted air conditioners, and a scroll compressor with the check valve. Background technique [0002] In order to improve the heat supply capacity of the heat pump system in a low temperature environment and achieve ultra-low temperature rapid heating, the enthalpy-enhancing scroll compressor is being widely used in various heat pump systems such as multi-connection systems, refrigeration and vehicle air conditioners. With the improvement of people's awareness of energy conservation and environmental protection, efficient heat pump systems have gradually become the market leader. As a quasi-two-stage compression enthalpy-increasing scroll compressor technology, the medium-pressure refrigerant directly enters the compression chamber through the enthalpy-increasing pipeline...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of existing scroll compressors with many enthalpy-increasing check structure parts and complex machining and assembly processes, the present invention proposes a simple structure, convenient production and processing, good check effect and check structure opening and closing Sensitive, fast-response check valve and scroll compressor having the check valve

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