Fan, motor and housing thereof

Abstract

A housing includes a top portion and a wall portion. The wall portion is connected with the circumference of the top portion. The top portion has a plurality of protruding structures disposed around a central axis of the top portion for increasing the force-bearing area of top portion. The thicknesses of the protruding structures are substantially the same as that of the top portion. The housing can be applied to a fan or a motor, and the housing can serve as a base of the motor, or serve as a hub of an impeller of the fan.

1 . A housing, comprising:
 a top portion having a plurality of protruding structures disposed around a central axis of the top portion to increase force-bearing area of the top portion; and   a wall portion connected with a circumference of the top portion.   
     
     
         2 . The housing according to  claim 1 , wherein the protruding structures have thicknesses which are substantially the same as a thickness of the top portion. 
     
     
         3 . The housing according to  claim 1 , wherein the protruding structures are disposed around the central axis of the top portion and are symmetrically arranged with respect to the central axis of the top portion. 
     
     
         4 . The housing according to  claim 1 , wherein each of the protruding structures has a slanting surface, or each of the protruding structures has a cross section which is U-shaped, half-circular, half-elliptical, arched, polygonal, wave-shaped, or toothlike. 
     
     
         5 . The housing according to  claim 1 , wherein the protruding structures are arranged with equidistant intervals, and the protruding structures are integrally formed on the top portion of the housing as a single piece. 
     
     
         6 . The housing according to  claim 1 , wherein the housing serves as a base of a motor, or a hub of a fan. 
     
     
         7 . A motor, comprising:
 a stator structure;   a rotor structure disposed corresponding to the stator structure; and   a housing, comprising a top portion and a wall portion, wherein the stator structure and the rotor structure are accommodated in the housing, the wall portion is connected with a circumference of the top portion, and the top portion has a plurality of protruding structures disposed around a central axis of the top portion for increasing force-bearing area of the top portion.   
     
     
         8 . The motor according to  claim 7 , wherein the protruding structures have thicknesses which are substantially the same as a thickness of the top portion. 
     
     
         9 . The motor according to  claim 7 , wherein the protruding structures are disposed around the central axis of the top portion and are symmetrically arranged with respect to the central axis of the top portion. 
     
     
         10 . The motor according to  claim 7 , wherein each of the protruding structures has a slanting surface, or each of the protruding structures has a cross section which is U-shaped, half-circular, half-elliptical, arched, polygonal, wave-shaped, or toothlike. 
     
     
         11 . The motor according to  claim 7 , wherein the protruding structures are arranged with equidistant intervals, and the protruding structures are integrally formed on the top portion of the housing as a single piece. 
     
     
         12 . The motor according to  claim 7 , wherein the motor is an inner-rotor type motor or an outer-rotor type motor, and the housing serves as a base of the motor. 
     
     
         13 . A fan, comprising;
 a motor, comprising a stator structure, a rotor structure, and a first housing, wherein the stator structure and the rotor structure are disposed corresponding to each other and are accommodated in the first housing;   an impeller connected with the rotor structure and comprising a second housing and a plurality of blades, wherein the blades are disposed around the second housing, and the motor drives the impeller to rotate; and   a plurality of protruding structures disposed on a top portion of the first housing or the second housing, wherein the protruding structures are disposed around a central axis of the top portion for increasing force-bearing area of the top portion.   
     
     
         14 . The fan according to  claim 13 , wherein the protruding structures have thicknesses which are substantially the same as a thickness of the top portion. 
     
     
         15 . The fan according to  claim 13 , wherein the protruding structures are disposed around the central axis of the top portion and are symmetrically arranged with respect to the central axis of the top portion. 
     
     
         16 . The fan according to  claim 13 , wherein each of the protruding structures has a slanting surface, or each of the protruding structures has a cross section which is U-shaped, half-circular, half-elliptical, arched, polygonal, wave-shaped, or toothlike. 
     
     
         17 . The fan according to  claim 13 , wherein the protruding structures are arranged with equidistant intervals, and the protruding structures are integrally formed on the top portion as a single piece. 
     
     
         18 . The fan according to  claim 13 , wherein the first housing serves as a base of the motor, and the second housing serves as a hub of the impeller. 
     
     
         19 . The fan according to  claim 13 , further comprising a connecting member connecting the second housing and the blades, and the connecting member is extended along an outer periphery of the second housing, and the blades are fixed on the connecting member. 
     
     
         20 . The fan according to  claim 19 , wherein the connecting member, the second housing, and the blades are integrally formed as a single piece.