Patent ID: 8030808

Claim:
An external rotor for a direct current drive motor, comprising a side wall ( 1 ); an end cover ( 2 ) directly connected to said side wall ( 1 ); a cavity ( 3 ) formed between said side wall ( 1 ) and said end cover ( 2 ); a plurality of openings ( 4 ) formed in said side wall ( 1 ); a base ( 5 ) disposed at the center of said end cover ( 2 ); a plurality of magnetic tiles ( 6 ) received in a plurality of said openings ( 4 ); a magnetic yoke shell ( 12 ) disposed against said side wall ( 1 ); a center hole ( 7 ) disposed at the center of said base ( 5 ); multiple wind wheels ( 8 ); and an air inlet ( 9 ) disposed between adjacent wind wheels ( 8 ); wherein said side wall ( 1 ) and said end cover ( 2 ) are integrally formed by injection molding and said base ( 5 ) is connected to said side wall ( 1 ) via said wind wheels ( 8 ), whereby improving the integrity of the external rotor.