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Double-cylinder compressor in refrigerating device

A technology for refrigeration equipment and compressors, applied in the field of compressors, can solve problems such as increasing wear, reducing compressor performance, and refrigerant leakage.

Inactive Publication Date: 2008-12-24
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Double-cylinder compressor in refrigerating device

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Embodiment Construction

[0030] refer to figure 1 , most of the compressor body 20 is still manufactured using the prior art, that is, the two ends of the crankshaft 1 are respectively installed on the upper bearing 2 and the lower bearing 3 inside the compressor body 20; two eccentric structures in the middle of the crankshaft 1 Set the upper roller ring 9 and the lower roller ring 10 respectively, the upper roller ring 9 and the lower roller ring 10 are respectively located in the upper cylinder 5 and the lower cylinder 6, and the upper cylinder 5 and the lower cylinder 6 are separated by a middle partition 7 open. The upper bearing 2 is provided with an upper exhaust port 13, which is covered with an exhaust valve plate 8, and the upper muffler 14 is installed on the upper bearing 2.

[0031] refer to Figure 4 ,, according to the technical solution of the present invention, the inner corner 25 of the center hole of the lower muffler 22 should be processed into a slope, and correspondingly, the o...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): F04C29/06F04C29/12
Inventor 樊利国
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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