| 摘要 |
PURPOSE:To reduce the noise and vibration by a compressor by making the distance between the shaft center line of the inner circumference of a motor stator and the shaft center line of bearings a half of the clearance of a crank shaft, and shifting the shaft center line of the stator inner circumference in the direction of force acting on the crank part. CONSTITUTION:In a rolling piston type compressor, a stress directed in the direction of 140 deg. making the vane position 0 deg. acts on a crank part 7a by the pressure in the cylinder. On the other hand, the shaft center line beta of the inner circumference 14a (not shwon is fig.) of a motor stator 14 (not shown in fig.) is directed toward the direction of about 145 deg. in the turning direction from the vane position, and is shifted eccentrically from the center line alpha of bearings 9 and 10 by a half of the clearance of a crank shaft 7. Thus, the magnetic attraction acting between the stator and the rotor is balanced on a circle by the force acting on the crank part 7a, and the occurrence of noise and vibration cna be prevneted.
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