Pump body assembly, compressor and air conditioner

Abstract

A pump body assembly, a compressor and an air conditioner are provided. The pump body assembly includes a cylinder assembly, which is connected to a first flange and a second flange respectively and is disposed between the first flange and the second flange; a rotation shaft, which is provided and passes through the first flange, the cylinder assembly and the second flange in sequence, and which is provided thereon with sliding vane grooves; and a sliding vane, which is provided inside the sliding vane groove and fits the cylinder assembly to form a working cavity in the cylinder assembly. The first flange is provided thereon with an exhaust channel which is in communication with the working cavity, and the second flange is provided thereon with a gas flow balance portion.

1 . A pump body assembly, comprising:
 a first flange;   a second flange;   a cylinder assembly connected to the first flange and the second flange respectively, and the cylinder assembly being disposed between the first flange and the second flange;   a rotation shaft provided and passing through the first flange, the cylinder assembly and the second flange in sequence, and a sliding vane groove being provided on the rotation shaft; and   a sliding vane provided inside the sliding vane groove, and the sliding vane fitting the cylinder assembly to form a working cavity inside the cylinder assembly;   wherein an exhaust channel is provided in the first flange and is in communication with the working cavity, and a gas flow balance portion is provided on the second flange; when the working cavity is in an exhausting state, a gas flow in the cylinder assembly generates a force of a torque (F) at the gas flow balance portion; the force is applied to an end of the sliding vane, and the end of the sliding vane is away from the exhaust channel; and the sliding vane does not tilt during a working process of the working cavity.   
     
     
         2 . The pump body assembly according to  claim 1 , wherein the gas flow balance portion is disposed at a position of the second flange, and the position of the second flange is opposite to the exhaust channel. 
     
     
         3 . The pump body assembly according to  claim 1 , wherein the gas flow balance portion is a groove; the groove is provided on a surface of the second flange; and the surface of the second flange faces the exhaust channel. 
     
     
         4 . The pump body assembly according to  claim 3 , wherein a projection of the exhaust channel on the second flange coincides with the groove. 
     
     
         5 . The pump body assembly according to  claim 1 , wherein the gas flow balance portion is an exhaust through hole; the exhaust through hole is provided in and passes through the second flange; and the exhaust through hole is arranged opposite to the exhaust channel. 
     
     
         6 . The pump body assembly according to  claim 5 , wherein a cross-sectional profile line of the exhaust through hole is identical with a cross-sectional profile line of the exhaust channel. 
     
     
         7 . The pump body assembly according to  claim 1 , wherein an annular protrusion is provided on a part of outer peripheral surface of the rotation shaft, and the annular protrusion is disposed inside the cylinder assembly; the sliding vane groove is provided on the annular protrusion, and extends along a radial direction of the annular protrusion. 
     
     
         8 . The pump body assembly according to  claim 7 , wherein a plurality of the sliding vane grooves are provided, and the plurality of the sliding vane grooves are arranged at intervals along a circumferential direction of the annular protrusion; a plurality of sliding vanes are provided, and the plurality of sliding vanes are arranged to correspond to the plurality of the sliding vane grooves one-to-one; and the plurality of the sliding vanes divide an inside of the cylinder assembly into a plurality of independent working cavities. 
     
     
         9 . The pump body assembly according to  claim 8 , wherein the cylinder assembly comprises:
 a cylinder;   a rolling member provided inside the cylinder and sleeved on the rotation shaft, the plurality of the sliding vane grooves fitting an inner wall surface of the rolling member to divide space between the inner wall surface of the rolling member and the rotation shaft into the plurality of independent working cavities; and   a bearing sleeve sleeved on the rolling member, at least a part of the bearing sleeve being located between an inner wall surface of the cylinder and an outer peripheral surface of the rolling member, and a rolling body being provided between the rolling member and the bearing sleeve.   
     
     
         10 . The pump body assembly according to  claim 1 , wherein a cross section of the exhaust channel is in a shape of a rhombus. 
     
     
         11 . A compressor, comprising a pump body assembly, wherein the pump body assembly is the pump body assembly of  claim 1 . 
     
     
         12 . An air conditioner, comprising a pump body assembly, wherein the pump body assembly is the pump body assembly of  claim 1 . 
     
     
         13 . The pump body assembly according to  claim 2 , wherein the gas flow balance portion is a groove; the groove is provided on a surface of the second flange; and the surface of the second flange faces the exhaust channel. 
     
     
         14 . The pump body assembly according to  claim 2 , wherein the gas flow balance portion is an exhaust through hole; the exhaust through hole is provided in and passes through the second flange; and the exhaust through hole is arranged opposite to the exhaust channel. 
     
     
         15 . The pump body assembly according to  claim 1 , wherein the working cavity comprises a compression cavity and an intake cavity. 
     
     
         16 . The pump body assembly according to  claim 4 , wherein a shape and a size of the projection of the exhaust channel are the same as a shape and a size of the groove. 
     
     
         17 . The pump body assembly according to  claim 6 , wherein a ratio of a length to a width of the exhaust channel is less than or equal to 4. 
     
     
         18 . The pump body assembly according to  claim 9 , wherein three sliding vanes are provided, and the three sliding vanes and an inner ring of the rolling member divide an entire crescent cavity into three independent cavities. 
     
     
         19 . The compressor according to  claim 11 , wherein an oil pump is provided on a lower part of the pump body assembly and immersed in an oil pool disposed at a bottom of the compressor. 
     
     
         20 . The compressor according to  claim 19 , wherein the pump body assembly further comprises a baffle, a valve sheet and a cover plate, and the oil pump is connected to the cover plate.