Rolling rotor compressor with suction-free check valve for low backpressure

Abstract

The invention discloses a rolling rotor compressor with a suction-free check valve for low backpressure. The rolling rotor compressor comprises an outer shell and a machine core, wherein the machine core is arranged inside the outer shell through a supporting piece, and the machine core comprises a motor, a crankshaft, an air cylinder assembly, a rolling rotor and a sliding block. The rolling rotor compressor is characterized in that an inner cavity of the outer shell is an air suction low-pressure end and is connected with a shell air suction pipe, an air inlet is connected with the inner cavity of the shell through an air suction silencing cavity assembly, an air outlet is connected with an inner exhaust coil assembly through an exhaust valve, and the inner exhaust coil assembly is connected with an exhaust pipe on the shell. The inner part of the shell is a low pressure cavity, so that the temperature of the motor can be reduced, so that the efficiency and the reliability of the compressor are improved, and the air suction silencing cavity and the exhaust air cylinder cover are additionally arranged, so that the noise is improved; the rolling rotor compressor is free of the airsuction check valve, so that the air suction efficiency is greatly improved, and the efficiency of the compressor can be improved. Due to the fact that the low-pressure cavity is located inside the shell, so that the rolling rotor compressor can be directly applied to a refrigerator and an ice locker with low backpressure working conditions, and the practical range is wide.

Description

Technical field [0001] The invention relates to the technical field of refrigeration, and in particular to a rolling rotor compressor with a low back pressure and no suction check valve. Background technique [0002] The pump body of the existing rotor compressor is partially welded to the shell, and the motor is installed on the shell by a thermal sleeve interference fit. The compressor intake pipe is directly connected with the suction hole of the pump body to form a low pressure end. Exhaust high pressure side. There are the following shortcomings: 1. The casing is the high-pressure exhaust end. High temperature gas will increase the temperature of the motor, reducing the efficiency and reliability of the compressor; 2. The pump body and the motor part and the casing form a whole, resulting in the compressor Large vibration; 3. No suction muffler chamber components and exhaust buffer chamber cause large noise; 4. Since the shell is the exhaust high pressure end, it cannot be ...

AI Technical Summary

Problems solved by technology

There are the following defects: 1. The inside of the shell is the exhaust high-pressure end, and the high-temperature gas will increase the temperature of the motor, which will reduce the efficiency and reliability of the compressor; 2. The pump body and the motor part are integrated with the shell, causing the compressor Large vibration; 3. There is no suction muffler chamber component and exhaust buffer chamber, resulting in high noise; 4. Since the shell is the exhaust high-pressure end, it cannot be directly used on refrigerators and freezers with low back pressure

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