Pivot joint for fan wheel of super-thin small heat-dissipating fan

Pivot joint for fan wheel of super-thin small heat-dissipating fan

  • CN 1,301,371 C
  • Filed: 10/18/1999
  • Issued: 02/21/2007
  • Est. Priority Date: 10/18/1999
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of super-thin small heat-dissipating fan with supporting structure, include a shell block and an impeller, be provided with circuit board in the shell block, a stator coil seat and a jack-post, convex with stationary axle on this jack-post, this stationary axle terminal forms coniform support, it is characterized in that:

  • also be provided with a balancing patch of making by permeability magnetic material in the shell block, the central position of the cavity at impeller middle part is provided with a stacker, this stacker is connected with supporting, this supporting is shored mutually with the stationary axle support in the shell block, the impeller middle pocket be provided with stator coil seat and shell block in the corresponding ring magnet of balancing patch, described supporting inside is provided with the holding space that supplies stationary axle and support thereof to stretch into, the inwall of described holding space is provided with a circular groove of ccontaining packing ring, the inner ring surface of this packing ring protrudes from inwall, and the diameter of bore of this packing ring is greater than the diameter that passes its stationary axle.

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