Scroll compressor having through holes with a set depth

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.