Minitype compressor with built-in liquid reservoir

Abstract

The invention discloses a minitype compressor with a built-in liquid reservoir. The minitype compressor with the built-in liquid reservoir comprises a compressor body; a cylinder, a main bearing, an auxiliary bearing, a crankshaft, a piston and a motor are installed in the compressor body; the upper end of the crankshaft is sleeved with the main bearing, and the lower end of the crankshaft is sleeved with the auxiliary bearing; the piston and the cylinder are fixed between the main bearing and the auxiliary bearing and sequentially installed on the eccentric portion of the crankshaft in a sleeving mode from inside to outside; the motor is connected with the crankshaft; the compressor body comprises a high-pressure end cover, a main rack, a compression cavity shell and a low-pressure end cover; a high-pressure refrigerant outlet is formed in the top of the high-pressure end cover; a low-pressure refrigerant inlet is formed in the side wall of the low-pressure end cover; the high-pressure refrigerant outlet and the low-pressure refrigerant inlet are each connected with a flared copper pipe where a quick-connection nut is preassembled; a concave portion is formed in the bottom of thecompression cavity shell to serve as an oil reservoir; and a cavity formed by the low-pressure end cover and the compression cavity shell is the liquid reservoir. The minitype compressor with the built-in liquid reservoir is compact in internal structure and small in occupied space, and can be assembled and overall overhauled conveniently on different occasions.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a micro compressor with a built-in liquid accumulator. Background technique [0002] At present, the rotary refrigeration compressor adopts the method of placing the liquid receiver separately on the side of the main body of the compressor, and connecting it as a whole through a copper elbow to form a refrigerant circulation circuit. The inlet / outlet of the refrigerant is welded with copper pipes. The form is connected to the corresponding refrigerant channel of the condenser, evaporator, etc. However, the separate external structure of the liquid reservoir occupies a large space, which is not conducive to installation in a small space, and there are many welding positions for the connecting pipe, and the space position is small, the process is difficult, and poor welding is prone to occur. In addition, the inlet / outlet of the refrigerant is connected by welding, with many a...

AI Technical Summary

Problems solved by technology

However, the separate external structure of the liquid reservoir occupies a large space, which is not conducive to installation in a small space, and there are many welding positions for the connecting pipe, and the space is small, the process is difficult, and poor welding is prone to occur

In addition, the inlet / outlet of the refrigerant is connected by welding, with many and complicated processes, and it is not easy to disassemble and maintain the whole machine

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