원래 이름 기록: BITZER Refrigeration Technology (China) Co., Ltd.

A check valve and a scroll compressor are provided. The check valve includes a valve plate, a washer, a valve stem, and a valve stopper. The valve stem is fixedly arranged between the valve plate and the valve stop, and the valve plate is provided with a valve hole for fluid to flow through. Annular outer, middle and inner stopper edges are provided on a bottom surface of the valve stopper from the edge to the center. A reverse flow hole is provided between the outer and middle stopper edges, and a ventilation port is provided on the middle stopper edge. The ventilation port is configured to connect a gap between the outer and middle stopper edges with the gap between the middle and inner stopper edges if the washer is in contact with the outer, middle and inner stopper edges.

A scroll compressor is provided, which includes an outer shell including a gas inlet, an inner shell in the outer shell, a motor in the inner shell and including a stator and a rotor in the stator, and a scroll component. A compression chamber for compressing refrigerant gas is formed in the scroll component, and is configured to compress the refrigerant gas via the motor. An air gap is provided between the stator and the rotor and/or between the stator and the inner shell. An upper chamber is formed in the inner shell between the motor and the scroll component, and includes an upper inlet hole. The refrigerant gas entering from the gas inlet has a lower temperature than the motor, and enters the compression chamber partially through the upper inlet hole and partially through the air gap to absorb heat of the motor.