Pump body component, variable-capacity compressor and air regulation system

Abstract

The invention provides a pump body component, a variable-capacity compressor and an air regulation system. The pump body component comprises a first compression portion, a second compression portion and a partition plate; the first compression portion and the second compression portion are installed into a whole body through a rotary shaft in a stacking manner and share the partition plate; the first compression portion comprises a first cylinder, a first roller, a first sliding sheet and a first bearing; the first roller is eccentrically installed on the rotary shaft and in the first cylinderand forms a first working cavity; the first sliding sheet is inserted into a first sliding sheet groove; the head end of the first sliding sheet is abutted against the outer peripheral wall of the first roller to divide the first working cavity into an air suction cavity and an exhaust cavity; the first sliding sheet groove is provided with a pneumatic drive cavity for the first sliding sheet; the pneumatic drive cavity comprises a tail end accommodating portion and a capacity enlarging portion; and the capacity enlarging portion is communicated with the tail end accommodating portion. By adopting the pump body component, the variable-capacity compressor and the air regulation system provided by the invention, the pressure pulsation in a sealing cavity of the sliding sheet groove can be greatly lowered, and the contact force between the sliding sheet and the roller is lowered, so that the running noise is lowered, and the reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of compressor manufacturing, and in particular relates to a pump body assembly, a variable capacity compressor and an air conditioning system. Background technique [0002] In the air conditioning system, in order to adjust the capacity output according to the demand of the load, most of them use variable frequency compressors, and the compressors can adjust the capacity output by adjusting the frequency of the compressor. When the load of the air conditioning system is too small, the operating frequency of the compressor needs to be continuously reduced. However, due to the limitation of the minimum operating frequency of the compressor, the minimum cooling capacity that the compressor can output is limited. Therefore, when the system load is less than the minimum capacity that the compressor can output at the lowest frequency, the compressor will start and stop frequently, resulting in high power consumpti...

AI Technical Summary

Problems solved by technology

However, in practical application, it is found that the volume of the sealed sliding vane groove is too small, and when the sliding vane in the sliding vane groove reciprocates at high speed, the pressure in the sealing chamber of the sliding vane groove will have a very large pulsation, making the pressure at the tail of the sliding vane excessive. Large or too small, affecting the reliability of the slider

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