| 摘要 |
PURPOSE: A scroll compressor is provided to reduce vibration generated by centrifugal force by mass eccentricity and reduce load of a bearing generated by transmitting gas force to a driving shaft. CONSTITUTION: In constituting a variable radial scroll compressor with a driving bush(108) to prevent radial leak, a balance weight(102b) forming an insertion pin(109) is inserted into a driving shaft(107) with the driving bush. A roller unit(110), rotating closely to an upper frame, is rotatably fitted into the insertion pin. The balance weight forms phase of 180 degrees with the acting direction of the centrifugal force and gas force. A plate is installed to support the rear of a rotating scroll(101). The plate is fixed on the upper end of the upper frame, with a bolt. The roller unit reduces contact friction force of the upper frame, with coupled with the insertion pin. Therefore, vibration and noise of the scroll compressor are reduced, the performance is improved, and reliability is secured.
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