| 主权项 |
1. A scroll compressor comprising:
a body container being a hermetically sealed container; a fixed scroll fixed to an upper portion of an inside of the body container; an orbiting scroll disposed below the fixed scroll and, together with the fixed scroll, forming a compression chamber, the orbiting scroll including a boss section at a central portion of a lower surface of the orbiting scroll; a rotary drive shaft having an eccentric shaft section formed at an upper end portion of the rotary drive shaft, the rotary drive shaft including an oil passing hole connecting an upper side and a lower side in the shaft, the eccentric shaft section being rotatably supported by an orbiting bearing at the boss section of the orbiting scroll; a frame including a thrust support surface on which the orbiting scroll is placed, a recessed section formed inwardly from the thrust support surface in a radial direction of the body container and accommodating the boss section of the orbiting scroll, and a main bearing section formed at a lower portion of the recessed section and rotatably supporting the rotary drive shaft, the frame being fixed to an inner peripheral surface of the body container; a thrust plate disposed between the lower surface of the orbiting scroll and the thrust support surface of the frame and that slidably supports the lower surface of the orbiting scroll; an Oldham ring accommodated in the frame and restricting rotation of the orbiting scroll around an axis of the rotary drive shaft; and an orbiting-side Oldham groove formed in the lower surface of the orbiting scroll outwardly from the boss section, the orbiting-side Oldham groove accommodating a part of the Oldham ring, wherein a circumferential groove that communicates with the orbiting-side Oldham groove is formed in the lower surface of the orbiting scroll. |
