Pump body assembly, compressor and air conditioner

Abstract

The invention provides a pump body assembly, a compressor and an air conditioner. The pump body assembly comprises a spindle, an upper flange, a lower flange, an air cylinder and a roller. The rolleris fixed circumferentially relative to the spindle, a slip sheet chute is formed in the roller, a slip sheet is slidably arranged in the slip sheet chute, the head of the slip sheet is abutted to theinner wall of the air cylinder, the tail of the slip sheet and the tail of the slip sheet chute form a tail cavity, a first backpressure groove is formed in the upper flange and / or a second backpressure groove is formed in the lower flange, a center hole and a side hole are formed in the spindle, the tail cavity communicates to the side hole through the backpressure grooves, each tail cavity is provided with at least one side hole correspondingly in a section vertical to the central axis of the spindle, and the tail cavity is located on an extension line of a center line of the side hole corresponding to the tail cavity. The pump body assembly according to the invention can solve the problem that the head of the slip sheet is separated from the inner wall of the air cylinder to further lead to leakage to affect the energy efficiency and the reliability of the compressor as the backpressure of the slip sheet is insufficient due to belated oil supply when an existing compressor operatesat low and medium frequency.

Description

technical field [0001] The present application relates to the technical field of air conditioning, in particular to a pump body assembly, a compressor and an air conditioner. Background technique [0002] In the existing rotary vane compressor, in order to ensure that the sliding vane can be extended smoothly during operation, a back pressure chamber is generally provided at the tail of the sliding vane (sliding vane tail cavity formed by the sliding vane and the main shaft sliding vane groove + the back pressure of the upper flange Groove + lower flange back pressure groove), and introduce high-pressure oil from the oil pool to provide power for the back of the slide vane, which is used to overcome the gas pressure and friction in the front and rear chambers of the slide vane head, to ensure that the compressor runs smoothly during the entire operation process. The slice head is always in contact with the inside of the cylinder. [0003] The oil under the back pressure of ...

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Problems solved by technology

[0006] Therefore, the technical problem to be solved in this application is to provide a pump body assembly, a compressor and an air conditioner, so as to solve the problem of insufficient back pressure of the sliding vanes due to untimely oil supply when the existing compressors operate at medium and low frequencies. The head is detached from the inner wall of the cylinder, resulting in leakage, which affects the energy efficiency and reliability of the compressor

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