Patent ID: 7654805

Claim:
A scroll compressor comprising: a fixed scroll; an orbiting scroll constructing an operation chamber for a fluid with the fixed scroll and compressing the fluid in the operation chamber by orbiting relative to the fixed scroll; a shaft having an eccentric portion connected to the orbiting scroll and receiving a driving force to rotate; a housing accommodating the orbiting scroll, the housing integrally provided with the fixed scroll; and an anti-rotation mechanism for preventing rotation of the orbiting scroll, the anti-rotation mechanism comprising: a first gear portion comprising a plurality of teeth integrally formed at the orbiting scroll and extending in a radial direction of the orbiting scroll, each tooth of the first gear portion having a first circular arc convex surface; the first gear portion comprising a first circular arc concave surface between two adjacent teeth; a second gear portion comprising a plurality of teeth integrally formed on an inner periphery of the housing, each tooth of the second gear portion having a second circular arc convex surface, the second gear portion facing the first gear portion in the radial direction of the orbiting scroll and engaging with the first gear portion in a circumferential direction of the orbiting scroll, the second gear portion comprising a second circular arc concave surface between two adjacent teeth of the second gear portion; and the first circular arc convex surface being in sliding engagement with the second circular arc concave surface, and the first circular arc concave surface being in sliding engagement with the second circular arc convex surface.