Compressor

摘要

A compressor according to the present disclosure may include a bearing member located out of a range in an axial direction of a rotor. Accordingly, the bearing member and the rotor cannot overlap each other so as to reduce a bearing area. This may result in reducing a frictional loss of the compressor and ensuring a press-fit length of the rotor, so as to prevent interference between the rotor and a stator. Also, an area of an oil passage can be increased without an increase in the frictional loss, resulting in an increase in an amount of oil supplied.

主权项

1. A compressor comprising:
a frame having a shaft hole; a compression device at the frame; a stator coupled to the frame; a rotor rotatably coupled to the stator; a crankshaft rotatably coupled through the shaft hole of the frame, the crankshaft having one end coupled to the rotor and another end coupled to the compression device, the crankshaft having a first contact point that is brought into contact with one point of an inner circumferential surface of the shaft hole when the crankshaft is tilted; and a bearing member provided between the frame and the crankshaft, the bearing member supporting the crankshaft with respect to the frame, wherein the following equation is satisfied:
α1≧α2, where α1 is an angle between a first virtual line extending from a bearing center of the bearing member to the first contact point of the crankshaft when the crankshaft is aligned in the shaft hole and a second virtual line extending from the bearing center to the one point of contact of the inner circumferential surface of the shaft hole, and α2 is a maximum tilt angle of the bearing member.