Eccentric bush assembly structure of scroll compressor
AssigneeHanon Systems
InventorsIn Guk Hwang, Kweon Soo Lim, Soo Cheol Jeong
Life of this patent
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Abstract
An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, including a bush body rotatably coupled to the orbiting scroll while being pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a friction prevention groove formed in a surface facing a tip surface of the rotary shaft so as not to come into frictional contact with the tip surface.
Claims8
An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, comprising:
- a bush body rotatably coupled to the orbiting scroll while pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a bushing surface facing a tip surface of the rotary shaft, wherein a friction prevention groove is formed in at least one of the bushing surface of the bush body and the tip surface of the rotary shaft and forms a non-contact portion between the bush body and the rotary shaft, wherein the friction prevention groove has a circular shape, wherein a center of the circular shape of the friction prevention groove is formed on a centerline of rotation of the rotary shaft, and wherein the rotary shaft is formed with a pin hole into which the eccentric shaft is fitted and the friction prevention groove is formed in the tip surface of the rotary shaft and does not overlap the pin hole of the rotary shaft.
An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, comprising:
- a bush body rotatably coupled to the orbiting scroll while pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a bushing surface facing a tip surface of the rotary shaft, wherein a friction prevention groove is formed in at least one of the bushing surface of the bush body and the tip surface of the rotary shaft and forms a non-contact portion between the bush body and the rotary shaft, wherein the bush body has a rotary shaft receiving groove rotatably receiving a tip portion of the rotary shaft of the drive motor and the bushing surface is formed in the rotary shaft receiving groove.
An eccentric bush assembly structure of a scroll compressor, in which an orbiting scroll is eccentrically coupled to a rotary shaft of a drive motor, comprising:
- a bush body rotatably coupled to the orbiting scroll while pinned to the rotary shaft of the drive motor by an eccentric shaft, the bush body having a bushing surface facing a tip surface of the rotary shaft, wherein a friction prevention groove is formed in at least one of the bushing surface of the bush body and the tip surface of the rotary shaft and forms a non-contact portion between the bush body and the rotary shaft, wherein the friction prevention groove has a circular shape, wherein the friction prevention groove has a diameter in a range of 9 to 12 millimeters when a lathe has a rotational speed of 3000 to 4000 revolutions per minute and a tool has a cutting speed of 125 meters per minute in turning.
Dependencies are inferred from the claim text.