Co-rotating scroll compressor

A co-rotating scroll compressor comprising:

• a housing;
• a driving mechanism;
• a driving scroll;
• a driven scroll;
• and a driven mechanism,
• the driving scroll being configured to make driving rotation around a driving axis by the driving mechanism,
• the driven scroll being eccentric to the driving scroll, and configured to make driven rotation around a driven axis by the driving scroll and the driven mechanism,
• the driving scroll having a driving scroll end plate that extends in a direction intersecting with the driving axis, a driving scroll peripheral wall that protrudes from the driving scroll end plate toward the driven scroll in a tubular shape, and a driving scroll spiral body that protrudes in a spiral shape from the driving scroll end plate toward the driven scroll inside the driving scroll peripheral wall,
• the driven scroll having a driven scroll end plate that extends in a direction intersecting with the driven axis, and a driven scroll spiral body that protrudes in a spiral shape from the driven scroll end plate toward the driving scroll, and
• the driving scroll and the driven scroll forming a compression chamber with the driving scroll spiral body and the driven scroll spiral body facing with each other, and changing a volume of the compression chamber by the driving rotation and the driven rotation, wherein
• the driving mechanism includes a rotor that has a tubular shape, surrounds the driving scroll from an outer peripheral side, and is disposed on an outer peripheral surface of the driving scroll,
• an inner diameter of the rotor is larger than an outer diameter of a portion of the outer peripheral surface of the driving scroll on which the rotor is disposed,
• the driving scroll has, in the outer peripheral surface in a circumferential direction of the driving scroll, a first region that includes a connection portion where an end of the driving scroll spiral body on the outer peripheral side is connected to the driving scroll peripheral wall and a portion of the driving scroll peripheral wall, and a second region that includes a portion of the driving scroll peripheral wall other than the first region,
• the driving scroll peripheral wall in the first region corresponds to a thick-walled portion where a first inner surface of the driving scroll peripheral wall in the first region facing inward in a radial direction of the driving scroll is positioned more inward in the radial direction than a second inner surface of the driving scroll peripheral wall in the second region facing inward in the radial direction, and
• a torque transmission mechanism that transmits a torque from the rotor to the driving scroll is provided in the first region of the driving scroll and in a portion of the rotor corresponding to the first region.