| 摘要 |
<p>There is disclosed a scroll compressor (C) which can lower the noise level of a harsh frequency without taking a lot of troubles. In a sealed container (1), a scroll compression element (2) and an electromotive element (3) are provided. The scroll compression element (2) is constituted of a fixed scroll (14) including a vertically provided spiral lap (17), and a swingable scroll (15) including a vertically provided spiral lap (21) and swiveled by a rotary shaft (5) of the electromotive element (3) with respect to the fixed scroll (14). A refrigerant compressed by gradually reducing, from the outside to the inside, a plurality of compression spaces formed by engaging both the laps with each other is discharged to a discharge pressure space (11) in the sealed container (1). The scroll compressor further includes through holes (32) formed in the fixed scroll to connect the compression spaces to the discharge pressure space, and normally closed relief valves (35) provided in the fixed scroll (14) on the side of the discharge pressure space (11) to open and close the through holes (32), and the depth dimension of each of the through holes (32) is set to a value corresponding to the wavelength of a noise peak frequency.</p> |
