Scroll compressor

A scroll compressor comprising:

• a compression mechanism including
• a fixed scroll including a fixed-side wrap having a spiral shape, and
• a movable scroll including a movable-side wrap having a spiral shape, the movable scroll together with the fixed-side wrap defining a compression chamber,
• the compression mechanism being configured to discharge a refrigerant compressed in the compression chamber;
• a motor configured to drive the movable scroll to cause the movable scroll to revolve relative to the fixed scroll;
• a drive shaft coupling the movable scroll to the motor;
• a casing accommodating the compression mechanism, the motor, and the drive shaft therein;
• a housing accommodated in the casing;
• and
• a floating member configured to be pushed toward the movable scroll by a pressure in a back pressure space, the back pressure space being formed between the floating member and the housing to press the movable scroll against the fixed scroll,
• the floating member including a pressing portion having a cylindrical shape configured to contact the movable scroll and to press the movable scroll against the fixed scroll, the pressing portion having a circumferential groove on an inner surface thereof,
• the floating member being supported by the housing, and
• one of
• the floating member including a plurality of supported portions arranged circumferentially at three or more locations, and the housing including a supporting portion supporting the supported portions of the floating member such that the floating member is slidable in an axial direction of the drive shaft and reducing inclination of the floating member, an outermost peripheral side face of the floating member not contacting an inner peripheral side face of the housing when the scroll compressor is in operation, or
• the floating member including a body member and an outer peripheral member separate from the body member, the outer peripheral member being mounted to an outer periphery of the body member, and the housing supporting the outer peripheral member such that the floating member is slidable in the axial direction of the drive shaft.