Automatic balancing apparatus, rotating apparatus, disc drive apparatus, and balancer

Automatic balancing apparatus, rotating apparatus, disc drive apparatus, and balancer

  • CN 1,992,034 B
  • Filed: 12/26/2006
  • Issued: 03/27/2013
  • Est. Priority Date: 12/26/2005
  • Status: Active Grant
First Claim
Patent Images

1. automatic balancing arrangement, it comprises:

  • A plurality of magnets with inside circumference and neighboring that play the evener effect;

    Magnetic fluid;

    AndRotatable housing, described rotatable housing have the motion path that arranges along the circumferential direction of rotating, and described a plurality of magnets are by described motion path motion, and described rotatable housing holds described a plurality of magnet and described magnetic fluid;

    Described motion path has the inner periphery surface of being located at the inside circumference side and is located at the outer periphery surface of side, neighboring;

    Described a plurality of magnet, when described housing rotates, the inside circumference of described a plurality of magnets and the inner periphery surface of described motion path are in relative status, and, the neighboring of described a plurality of magnets and the outer periphery surface of described motion path are in relative status, move by described motion path along circumferential direction respectively.

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