Refrigeration compressor

Abstract

It is a kind of refrigeration compressor which gets involved in the technical field of the refrigeration plant. It includes: the casing, the electric motor, the counter balance, the air cylinder, the piston, and the eccentric axis. The electric motor, the counter balance and the air cylinder are in the casing. The piston is in the air cylinder and the eccentric axis is in the piston. The decentration bindiny mechanism is articulated with the pitman shaft, and there is the counter balance joined with the electric engine which counteracts the eccentric force produced in the rotary movement. There is a elastic device for pulling the eccentric axis and the piston. The advantages are low cost and a long service life.

Description

Technical field: [0001] The invention relates to the technical field of refrigerating equipment, in particular to a refrigerating compressor that does not require high machining accuracy, is small in size, low in power consumption, and can be used in places without an AC power supply. Background technique: [0002] At present, the power supply of refrigeration compressors is AC power supply, and the compressor with this structure has the following defects: [0003] 1. The place of use is restricted [0004] In places without AC power, this kind of compressor cannot be used. [0005] 2. Large and bulky [0006] Due to the technical factors of the current AC motor, the volume of the entire compressor is large, and the weight is also quite large, which takes up a large space and is extremely inconvenient to move. [0007] 3. High loss [0008] Due to the large loss of the compressor motor itself, the compressor has low efficiency and consumes electricity, which is not condu...

AI Technical Summary

Problems solved by technology

[0003] 1. The place of use is restricted

[0004] In places without AC power supply, this kind of compressor cannot be used

[0005] 2. Large and bulky

[0006] Due to the technical factors of the current AC motor, the volume of the entire compressor is large, and the weight is also quite large, which takes up a large space and is extremely inconvenient to move.

[0007] 3. High loss

[0008] Due to the large loss of the compressor motor itself, the compressor has low efficiency and consumes electricity, which is not conducive to energy saving

[0009] Four, the speed can not be adjusted

[0010] Due to the inability to control the speed of the motor, the compressor can only work at a certain speed and cannot be adjusted according to specific conditions

[0011] 5. High failure rate and short service life

[0012] The brushless motor used in ordinary inverter compressors has a rotor position sensor inside; when the electronic components inside the motor work in the harsh environment of high temperature, high pressure, oil, and full of refrigerant, they are prone to failure and have a short life

[0013] 6. The compressor process is complex and requires high precision

[0014] In order to keep the outer wall of the piston close to the inner wall of the cylinder, the machining accuracy of the outer wall of the piston is required to be very high, and the process is relatively complicated; the cost is also high

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