Patent ID: 8475148

Claim:
A scroll compressor comprising a sealed container in which a scroll compression element and an electromotive element to drive the scroll compression element are provided, the scroll compression element being constituted of a fixed scroll including a spiral lap vertically provided on the surface of a panel board, and a swingable scroll including a spiral lap vertically provided on the surface of a panel board and swiveled by a rotary shaft of the electromotive element with respect to the fixed scroll, the scroll compressor being configured to discharge, to a discharge pressure space in the sealed container, 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, the scroll compressor further comprising: through holes formed in the fixed scroll to connect the compression spaces to the discharge pressure space; and normally closed relief valves provided in the fixed scroll on the side of the discharge pressure space to open and close the through holes, a depth dimension of each of the through holes being set to a value corresponding to the wavelength of a noise peak frequency.