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Supercharging structure for a fan

  • US 6,547,540 B1
  • Filed: 09/28/2001
  • Issued: 04/15/2003
  • Est. Priority Date: 09/19/2001
  • Status: Expired due to Term
First Claim
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1. A fan comprising:

  • a casing comprising an air passage hole, the air passage hole having an inlet at a first end thereof and an air outlet at a second end thereof, a supporting plate being supported in the air passage hole, the supporting plate having an axle tube;

    a stator bobbin mounted to the axle tube of the supporting plate;

    a fan wheel rotatably mounted to the stator bobbin and comprising plural blades; and

    a base comprising plural engaging members for coupling the base to the air outlet end of the casing, the base comprising an air outlet having a central portion, and plural supercharging plates being mounted between the central portion and the base, wherein each said supercharging plate is all inclined plate.

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