Secondary rotary compressor
A rotary compressor and rotary shaft technology, which is applied in the direction of rotary piston machines, rotary piston pumps, mechanical equipment, etc., can solve the problems of complicated operation and assembly processes, difficulty in reducing the flow noise of high-pressure refrigerant, etc., and achieve simplified structure , Simplify the operation process and reduce the noise effect
Inactive Publication Date: 2010-03-31
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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Problems solved by technology
Therefore, the work process and assembly process are complicated
Also, since the noise reduction grooves are formed on the low-pressure cylinder and the intermediate plate where the relatively low-pressure refrigerant flows, it is difficult to reduce the noise caused by the high-pressure refrigerant flow
Method used
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[0033] Below, the present invention will be described in detail in conjunction with the drawings and specific embodiments.
[0034] is a schematic diagram of a circuit comprising a two-stage rotary compressor of the present invention. Such as Figure 5 As shown, the refrigeration circuit includes a two-stage rotary compressor 100 , a condenser 300 , an evaporator 400 , a gas-liquid separator (phaseseperator) 500 , a four-way valve 600 and other components. Wherein, the condenser 300 constitutes an indoor unit, and the compressor 100, the evaporator 400, and the gas-liquid separator 500 constitute an outdoor unit. The refrigerant compressed by the compressor 100 flows through the four-way valve 600 into the condenser 300 of the indoor unit, and the compressed refrigerant gas exchanges heat with the surrounding air to condense. The condensed refrigerant turns into a low-pressure refrigerant when it flows through the expansion valve. The refrigerant flowing through the expansi...
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The invention discloses a secondary rotary compressor which comprises a sealed container, a rotating shaft, a low-pressure compression combination, a high-pressure compression combination and a middle plate, wherein the rotating shaft is positioned in the sealed container and supplies engine oil while transmitting rotary force; the low-pressure compression combination carries out first compression on refrigerant by a low-pressure air cylinder when the rotating shaft rotates; the high-pressure compression combination carries out second compression on the refrigerant by a high-pressure air cylinder when the rotating shaft rotates; and the middle plate is arranged between the low-pressure air cylinder and the high-pressure air cylinder and provided with a high-pressure noise reducing groove on one side which is in contact with the high-pressure air cylinder. Because the upper surface and the lower surface of the middle plate which is in contact with the high-pressure air cylinder and thelow-pressure air cylinder are respectively provided with the noise reducing grooves, the structure and the operation procedure can be simplified. In addition, the invention can also gather the noise reducing grooves in various shapes and form the noise reducing grooves at the position of a passage for discharging middle-pressure refrigerant or high-pressure refrigerant, thereby further reducing noise.
Description
technical field [0001] The invention relates to a rotary compressor, in particular to a two-stage rotary compressor which can effectively reduce discharge noise. Background technique [0002] Generally, a compressor is a mechanical device that compresses air or refrigerant and various working fluids after receiving power from a power generating device such as a motor or an engine, and can increase its pressure. It is widely used in refrigerators, air conditioners and other household appliances or entire in the industrial field. [0003] This kind of compressor can be roughly divided into reciprocating compressor (Reciprocating compressor), rotary compressor (Rotary compressor) and turbo compressor (Scroll compressor); reciprocating compressor forms an inhalable working fluid between the piston and the cylinder In the compression space, the piston moves back and forth in a straight line inside the cylinder to compress the refrigerant; the rotary compressor forms a compressio...
Claims
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IPC IPC(8): F04C29/06F04C23/00F04C18/356
Inventor 卞想明韩定旻金赏模朴峻弘
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD