Fan motor

Abstract

Disclosed is a fan motor including: a lower bracket having a lower protruding portion disposed at the center thereof and a space portion formed around the lower protruding portion; an upper bracket having an upper protruding portion disposed at the center thereof; a rotor disposed between the lower protruding portion and the upper protruding portion in such a manner as to be rotated together with a shaft; a stator core adapted to be surrounded with a lower insulator disposed on the top of the lower protruding portion and with an upper insulator disposed on the underside of the upper protruded portion; and a PCB cover adapted to be coupled under the lower insulator in such a manner as to be disposed into the space portion of the lower bracket and having a PCB insertion space portion formed at the inside thereof.

1 . A fan motor comprising:
 a lower bracket  1  having a lower protruding portion  11  disposed at the center thereof and a space portion  15  formed around the lower protruding portion  11 , the lower protruding portion  11  having a lower bearing insertion portion  12  formed at the inside thereof;   an upper bracket  2  having an upper protruding portion  21  disposed at the center thereof, the upper protruding portion  21  having an upper bearing insertion portion  22  formed at the inside thereof;   a rotor  4  disposed between the lower protruding portion  11  and the upper protruding portion  21  in such a manner as to be rotated together with a shaft  3 ;   a stator core  5  adapted to be surrounded with a lower insulator  51  disposed on the top of the lower protruding portion  11  and with an upper insulator  52  disposed on the underside of the upper protruded portion  21 ; and   a PCB cover  6  adapted to be coupled under the lower insulator  51  in such a manner as to be disposed into the space portion  15  of the lower bracket  1  and having a PCB insertion space portion  62  formed at the inside thereof.   
     
     
         2 . The fan motor according to  claim 1 , wherein the lower bearing insertion portion  12  and the upper bearing insertion portion  22  have a lower bearing  31  and an upper bearing  32  forcedly pressed and fitted thereinto. 
     
     
         3 . The fan motor according to  claim 2 , wherein the lower bearing  31  has lower felt  33  coupled to the lower periphery thereof, and the upper bearing  32  has upper felt  34  coupled to the upper periphery thereof. 
     
     
         4 . The fan motor according to  claim 1 , further comprising a fan  7  adapted to be coupled to the protruding portion of the shaft  3  upwardly from the center portion of the upper bracket  2 , the fan  7  comprising: a shaft insertion protrusion  71  formed protrudedly from the center portion thereof and having a shaft insertion portion  73 ; and at least one or more gaps  72  formed on the shaft insertion protrusion  71  in a direction of the shaft  3 . 
     
     
         5 . The fan motor according to  claim 1 , further comprising a PCB  61  adapted to be inserted into the PCB insertion space portion  62  and a sealing portion  64  formed by means of resin molding after the insertion of the PCB  61 .