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 main shaft, a flange, air cylinders and sliding vanes, the main shaft comprises a convex part, the multiple sliding vanes are arranged on the convex part at intervals in the circumferential direction, compression cavities are defined by the flange, the air cylinders, the sliding vanes and the convex part, at least one radial exhaust channel is formed in the position, corresponding to each compression cavity, of the convex part, an axial exhaust channel is further formed in the main shaft and extends to the exterior of a matching area of the flange and the main shaft in the axial direction of the main shaft and communicates with the space outside the pump body assembly, the radial exhaust channel is internally provided with an exhaust valve assembly, and when the pressure of refrigerants in the compression cavities reaches the preset pressure, the exhaust valve assembly communicates with the compression cavities and the axial exhaust channel. According to the pump body assembly, the area of the exhaust channel can be unlimited, meanwhile, leakage in the compression process of the compressor can be effectively avoided, and the performance of the compressor is ensured.

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 prior art, the sliding vane compressor generally adopts the side exhaust method of the cylinder to exhaust, but the side exhaust of the cylinder will cause the phenomenon of gas crossing between the front and rear vanes near the exhaust port, which will increase the leakage of the compressor. The traditional exhaust valve is a reed valve, and the resistance is very large when the valve is opened. Since the pump body of the compressor is soaked in refrigerated oil, the exhaust channel of the side row of the cylinder is also surrounded by refrigerated oil. During the exhaust process, The presence of refrigerated oil will increase the opening force of the valve plate, which will further increase the power consumption of the compressor. [0003] In order to solve the ab...

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Problems solved by technology

[0004] But at the same time, the problem is that the minimum distance of the axial exhaust channel along the width direction of the slide must be smaller than the width of the slide, otherwise it will cause air leakage between the front and rear chambers, resulting in leakage and affecting the cooling capacity. The area of ​​the exhaust channel will lead to the area of ​​the exhaust channel being too small, the exhaust velocity will increase, the exhaust loss will increase, and the power consumption will increase.

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