Fixed scroll and scroll compressor

Abstract

The invention provides a fixed scroll and a scroll compressor. The fixed scroll comprises a fixed scroll end plate, a fixed scroll body; and an outer peripheral wall in which an air inlet is provided, the fixed scroll body including a starting end engaged with the outer peripheral wall, an engagement position to be engaged with a radially outermost end of an orbiting scroll body of an orbiting scroll of the scroll compressor, and a scroll section extending from the starting end to the engagement position. The fixed scroll further includes a flow guide passage in fluid communication with the air inlet, the flow guide passage extending from the starting end and along at least a portion of the wrap section, the scrol section including a first sidewall in the flow guide passage, the first sidewall includes a first section having a first center of curvature and a second section having a second center of curvature respectively located on radially opposite sides of the first sidewall. According to the fixed scroll and the scroll compressor, optimized flow guide can be carried out on a refrigerant, the refrigerating efficiency of the scroll compressor is improved, the structure is simple, and machining and manufacturing are easy.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a fixed scroll and a scroll compressor including the fixed scroll. Background technique [0002] This section provides background information related to the present disclosure which does not necessarily constitute prior art. [0003] Compressors, such as scroll compressors, can be used, for example, in refrigeration systems, air conditioning systems, and heat pump systems. The scroll compressor includes a compression mechanism, which includes a fixed scroll and a movable scroll, and the fixed scroll and the movable scroll are engaged with each other to define an open suction chamber and a series of closed compression chambers, and, for the low-pressure side scroll The compressor is usually provided with an air inlet in the outer peripheral wall of the fixed scroll, and the air inlet is fluidly connected to the suction chamber, and the refrigerant enters the suction chamber through the...

AI Technical Summary

Problems solved by technology

[0004] However, in the scroll compressor of the prior art, when the refrigerant enters the suction cavity through the air inlet, turbulence or eddy current and velocity gradient may be generated, thereby causing pressure loss, reducing the enthalpy difference of the refrigerant, and scroll compression The cooling efficiency of the machine is thus reduced

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