| CPC F04C 27/001 (2013.01) [F04C 18/0215 (2013.01); F04C 18/0253 (2013.01); F04C 27/005 (2013.01); F04C 27/007 (2013.01); F04C 23/008 (2013.01)] | 15 Claims |
|
1. An axially flexible compressor, comprising:
a stationary scroll comprising a first spiral wall;
a movable scroll mating with the stationary scroll; and
a gas-discharge cover, the stationary scroll mating with the gas-discharge cover, the stationary scroll being at least partially located in the gas-discharge cover;
wherein the compressor comprises a sealing member and an elastic member; the sealing member is located between an outer side wall of the stationary scroll and an inner wall of the gas-discharge cover; the stationary scroll defines a gas-discharge hole; the outer side wall is located at a position of the first spiral wall away from the gas-discharge hole; the elastic member is located between the gas-discharge cover and a side of the stationary scroll away from the movable scroll; the elastic member abuts against and mates with the stationary scroll and the gas-discharge cover;
wherein the stationary scroll is movable with respect to the movable scroll along an axial direction of the axially flexible compressor between a sealed position where the stationary scroll is abutted against the movable scroll, and an unsealed position where the stationary scroll is separated from the movable scroll;
wherein the axially flexible compressor further comprises:
a shell; and
a main bearing seat, the main bearing seat cooperates with the shell to form a low-pressure chamber;
wherein the movable scroll mates with the stationary scroll to form a compression chamber between the movable scroll and the stationary scroll;
the stationary scroll is at least partially located in the gas-discharge cover to form a high-pressure chamber located between the stationary scroll and the gas-discharge cover;
the compression chamber and the high-pressure chamber are in communication with each other through the gas-discharge hole;
regardless of where the stationary scroll is located between the sealed position and the unsealed position, the sealing member always maintains a seal between the outer side wall of the stationary scroll and the inner wall of the gas-discharge cover, thereby ensuring that the high-pressure chamber does not leak a high-pressure refrigerant into the low-pressure chamber;
when the stationary scroll is located at the sealed position, the compression chamber is configured to compress a refrigerant to high-pressure and convey the high-pressure refrigerant into the high-pressure chamber through the gas-discharge hole;
when the stationary scroll is located at the unsealed position, the compression chamber is configured to leak a liquid refrigerant from the compression chamber, thereby reducing pressure in the compression chamber;
wherein the axially flexible compressor further comprises a back-pressure chamber located between the main bearing seat and the movable scroll, and a rotating shaft partially installed on the main bearing seat; the rotating shaft is connected to the movable scroll;
wherein the gas-discharge cover defines a first oil path which is in communication with the high-pressure chamber; the main bearing seat defines a second oil path which communicates the first oil path with the back-pressure chamber;
the rotating shaft defines a third oil path which communicates the back-pressure chamber with the low-pressure chamber;
wherein the movable scroll comprises a second spiral wall to mate with the first spiral wall so as to compress the refrigerant in the compression chamber;
the movable scroll further defines at least one through hole which communicates the compression chamber with the back-pressure chamber; the at least one through hole is disposed adjacent to a root of the second spiral wall.
|