Scroll compressor having noise reduction structure

A scroll compressor comprising:

• a casing;
• a drive motor included in the casing;
• a rotary shaft rotatable by the drive motor;
• a main frame supporting the rotary shaft;
• a fixed scroll connected to the main frame;
• an orbiting scroll arranged between the main frame and the fixed scroll and eccentrically connected to the rotary shaft, the orbiting scroll configured to orbit relative to the fixed scroll and define a compression chamber in cooperation with the fixed scroll;
• a discharge cover disposed on a first surface of the fixed scroll to define a closed space between the discharge cover and the first surface of the fixed scroll;
• a discharge port defined at the fixed scroll and configured to fluidly connect the compression chamber to the closed space;
• and
• a discharge hole defined through the main frame and the fixed scroll and configured to fluidly connect the closed space to an outside of the main frame,
• wherein opposite ends of the discharge hole have cross-sectional areas that are different from a cross-sectional area of an expanded flow channel of the discharge hole disposed between the opposite ends,
• wherein the discharge hole comprises a plurality of inlets and a plurality of outlets defined at the opposite ends, and the expanded flow channel is defined between the plurality of inlets and the plurality of outlets, and
• wherein the expanded flow channel is in fluid communication with at least two of the plurality of inlets and at least two of the plurality of outlets.