Scroll compressor having separate flow paths in communication with different back pressure chambers

A scroll compressor comprising:

• a fixed scroll;
• an orbiting scroll configured to orbit with respect to the fixed scroll and including an orbiting end plate;
• a main frame to which the orbiting scroll is coupled to orbit;
• a compression chamber formed between the fixed scroll and the orbiting scroll;
• a first back pressure chamber formed by the main frame and the orbiting scroll;
• a first flow path provided to allow the first back pressure chamber and the compression chamber to communicate with each other;
• a second back pressure chamber formed by the main frame and the orbiting scroll and provided to be separated from the first back pressure chamber in response to an orbital motion of the orbiting scroll;
• a second flow path provided to allow the second back pressure chamber and the compression chamber to communicate with each other;
• and
• a first sealing member mounting groove formed between the orbiting end plate and the main frame,
• wherein the main frame comprises a first outer wall, and a first inner wall inwardly spaced apart from the first outer wall so as to form the first sealing member mounting groove, and
• wherein a height of the first outer wall is greater than a height of the first inner wall.