Axially flexible compressor

A compressor, comprising:

• a stationary scroll comprising a first spiral wall;
• a movable scroll mating with the stationary scroll to form a compression chamber between the movable scroll and 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 to form a high-pressure chamber located between the stationary scroll and the gas-discharge cover;
• wherein the compressor comprises a sealing member and an elastic member;
• the sealing member is located between the stationary scroll and the gas-discharge cover;
• the stationary scroll defines a gas-discharge hole communicating the compression chamber with the high-pressure chamber;
• the elastic member is located between the gas-discharge cover and the stationary scroll;
• the elastic member abuts against and mates with the stationary scroll and the gas-discharge cover;
• the stationary scroll is configured to be movable along an axial direction thereof, regardless of where the stationary scroll is located, the sealing member always maintains a seal between the stationary scroll and the gas-discharge cover, thereby ensuring that the high-pressure chamber does not leak a high-pressure refrigerant into a low-pressure chamber;
• when the stationary scroll moves to a position where the stationary scroll is separated from the movable scroll, the compression chamber is configured to leak a liquid refrigerant from the compression chamber, thereby reducing pressure in the compression chamber;
• wherein the compressor further comprises:
• a shell;
• a main bearing seat cooperating with the shell to form the low-pressure chamber;
• and
• a rotating shaft partially installed on the main bearing seat;
• the rotating shaft being connected to the movable scroll;
• wherein a back-pressure chamber is formed between the main bearing seat and the movable scroll;
• 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 a 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.

A compressor, comprising:

• a stationary scroll comprising a first spiral wall and a first wall which are disposed at two opposite sides thereof, the stationary scroll defining a gas-discharge hole extending along an axis direction of the compressor;
• a movable scroll comprising a second spiral wall mating with the first spiral wall to form a compression chamber between the second spiral wall and the first spiral wall;
• a gas-discharge cover receiving at least part of the stationary scroll therein;
• a high-pressure chamber being formed between the stationary scroll and the gas-discharge cover;
• the gas-discharge hole communicating the compression chamber with the high-pressure chamber;
• a sealing ring disposed between the first wall of the stationary scroll and the gas-discharge cover along the axis direction of the compressor;
• and
• an elastic spring disposed between the first wall of the stationary scroll and the gas-discharge cover along the axis direction of the compressor;
• wherein the sealing ring is further away from the gas-discharge hole than the elastic spring at a radial direction of the compressor;
• the stationary scroll is configured to be movable along the axial direction of the compressor;
• regardless of where the stationary scroll is located, the sealing ring always maintains a seal between the stationary scroll and the gas-discharge cover, thereby ensuring that the high-pressure chamber does not leak a high-pressure refrigerant into a low-pressure chamber;
• when the stationary scroll moves to a position where the stationary scroll is separated from the movable scroll, the compression chamber is configured to leak a liquid refrigerant from the compression chamber, thereby reducing pressure in the compression chamber.