US2014147260A1PendingUtilityA1

Heat dissipating fan

39
Assignee: COOLER MASTER CO LTDPriority: Nov 28, 2012Filed: Nov 28, 2012Published: May 29, 2014
Est. expiryNov 28, 2032(~6.3 yrs left)· nominal 20-yr term from priority
Inventors:Kai HuShiman XuJiasheng LaiHaijun He
F04D 19/002F04D 25/0646F04D 25/064F04D 19/00
39
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Claims

Abstract

A heat dissipating fan includes a stator and a rotor. The stator includes a bearing and a winding structure, wherein the bearing is disposed in the winding structure. The rotor includes a fan wheel, a ring-shaped casing and a magnetic member, wherein the ring-shaped casing is disposed in the fan wheel and the magnetic member is disposed in the ring-shaped casing. The fan wheel has an axle inserted into the bearing such that the winding structure is located within the magnetic member. At least one protruding portion protrudes from one side of the ring-shaped casing inwardly and is extended below the winding structure so as to hold the magnetic member and interfere with the winding structure.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A heat dissipating fan comprising:
 a stator comprising a bearing and a winding structure, the bearing being disposed in the winding structure; and   a rotor comprising a fan wheel, a ring-shaped casing and a magnetic member, the ring-shaped casing being disposed in the fan wheel, the magnetic member being disposed in the ring-shaped casing, the fan wheel having an axle inserted into the bearing such that the winding structure is located within the magnetic member, at least one protruding portion protruding from one side of the ring-shaped casing inwardly and being extended below the winding structure so as to hold the magnetic member and interfere with the winding structure.   
     
     
         2 . The heat dissipating fan of  claim 1 , wherein the winding structure has a plurality of teeth and a width of the at least one protruding portion is smaller than a gap between two adjacent teeth. 
     
     
         3 . The heat dissipating fan of  claim 1 , wherein the winding structure has a plurality of teeth and a length of the at least one protruding portion covers a gap between the magnetic member and the teeth. 
     
     
         4 . The heat dissipating fan of  claim 1 , wherein the ring-shaped casing is made of a magnetic induction material. 
     
     
         5 . The heat dissipating fan of  claim 4 , wherein the magnetic induction material is electro-galvanized steel (SECC).

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