Totally-closed piston refrigeration compressor

Abstract

The invention discloses a totally-closed piston refrigeration compressor. The totally-closed piston refrigeration compressor comprises a shell, a motor, a crankshaft, an air cylinder seat and an air cylinder cover. An air cylinder is arranged on the air cylinder seat, a valve plate assembly is arranged on the end face, away from the crankshaft, of the air cylinder, and the air cylinder cover is arranged on the other end face of the valve plate assembly. An exhaust cavity is formed in the air cylinder cover, and an open type air inlet silencer connector is arranged on the outer portion of the air cylinder cover. An air cylinder cover inner container is arranged in the exhaust cavity in a sleeved manner, exhaust air outlet holes are formed in the air cylinder cover inner container and the exhaust cavity, the air cylinder cover inner container and the exhaust cavity are connected to an exhaust buffer cavity through an exhaust connecting pipe, the exhaust buffer cavity is arranged in the shell, the other end of the exhaust buffer cavity is connected with an exhaust coil pipe, and the exhaust coil pipe extends to and is connected to an exhaust pipe on the shell. The refrigeration compressor optimizes the structures of the air cylinder seat and the air cylinder cover, so that the exhaust and heat insulation effects are very good, the air suction efficiency of the compressor can be improved, and finally the aim of improving the efficiency of the compressor is achieved.

Description

technical field [0001] The invention relates to the technical field of refrigeration compressors, in particular to a fully enclosed piston refrigeration compressor. Background technique [0002] Piston compressors are widely used in refrigeration equipment. This kind of compressor usually drives the crankshaft to rotate through the motor, and then the crankshaft drives the piston to reciprocate through the crankshaft connecting rod to realize the transformation of low-temperature and low-pressure refrigerant vapor into high-temperature and high-pressure. Refrigerant, such a cycle of promoting the movement of the medium forms a refrigeration cycle. The cylinder block used in the traditional piston compressor adopts a multi-cavity structure, including a buffer chamber and an exhaust chamber, and the structure is relatively complicated. [0003] Chinese utility model patent (publication number: CN208749516U) disclosed a cylinder block assembly of a piston compressor, a piston ...

AI Technical Summary

Problems solved by technology

The structure of the cylinder block on the compressor is not only complicated, but also the internal structure of the cylinder is complicated, and it is necessary to set up a gas channel for exhaust

[0004] The cylinder head in the prior art is mostly made of metal, and the structure is complex and single. The cylinder head has a certain heat dissipation effect during high-temperature exhaust, which is easy to cause local temperature to be too high, causing the cold air at the suction end to be heated, affecting the suction. effect, thus affecting the working efficiency of the entire compressor

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