Double-cylinder compressor in refrigerating device

Abstract

The invention discloses a double-cylinder compressor for refrigeration equipment, comprising a compressor body, an upper silencer and a lower silencer, wherein the upper silencer is arranged on an upper bearing of the compressor body, and the lower silencer is arranged on a lower bearing of the compressor body. An inner edge corner of a center hole of the lower silencer should be processed into an inclined plane, and an outer edge corner of an upper end face of the lower bearing which is contacted with the inner edge corner should be processed into an inclined plane matching with the inclined plane of the center hole of the lower silencer. Because sealing contact area between the two edge corners is increased by means of the contact, thereby effectively improving sealing property of the double-cylinder compressor and reducing leakage; and mutual pressure between the two edge corners is dispersed, thereby reducing deformation of the lower bearing and noise of the double-cylinder compressor.

Description

1. Technical field [0001] The invention relates to a compressor in a refrigeration device, in particular to a double-cylinder compressor (TWIN Compressor) in a refrigeration device. 2. Background technology [0002] Generally speaking, the compressor is an important part in refrigeration equipment, and it forms a closed cycle system together with the condenser, expansion device, and evaporator. In this cycle system, the compressor is responsible for compressing the low-temperature and low-pressure gaseous refrigerant sucked into the compressor, and discharging it in a high-temperature and high-pressure state, and the discharged gaseous refrigerant releases latent heat to the outside when passing through the condenser, thereby transformed into a liquid state. At the same time, the pressure is reduced when passing through the expansion device, and then the refrigerant in the low-pressure state is evaporated in the process of passing through the evaporator, thereby absorbing e...

AI Technical Summary

Problems solved by technology

From a technical point of view, since the lower muffler 12 in this connection only relies on its protrusion 15 to contact the upper end surface of the lower bearing 3, from the perspective of the overall structure, this connection between the protrusion 15 and the upper end surface of the lower bearing 3 The contact is actually just a line contact, that is, a circular arc along the upper end surface of the lower bearing 3. If any position of the arc (that is, the protrusion 15) is not tightly sealed, the refrigerant will leak

Therefore, its sealing effect is not ideal

The leakage will not only increase the noise of the compressor, but also reduce the performance of the compressor itself

[0006] If the lower muffler 12 is pressed more tightly in the direction of the lower bearing 3 during installation, although it will have some beneficial effects on improving its sealing performance, this is at the expense of increasing the pressure on the lower bearing 3. And this will inevitably cause the lower bearing 3 to deform under pressure, and thus increase its own wear and tear

so it is difficult to produce satisfactory results

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