Outer rotor type brusless DC motor

An outer rotor type brushless DC motor including a stator having coils each wound on respective teeth of said stator, and a rotor having magnets arranged to surround said stator, said DC motor comprising:

• a first housing member formed of a sheet metal by press-working and having a central, cylindrical projection formed by press-working;
• a hollow cylindrical stator support formed of a sheet metal by press-working and having one end closed to form a first bearing receiver and adapted to receiving said stator on the outer surface of said stator support, said stator support mounted inside said first housing member;
• a second housing member formed of a sheet metal by press-working and having a second central, inwardly projecting cylindrical bearing receiver formed by press-working such that said second cylindrical bearing receiver is coaxial with said first bearing receiver, said second housing member mating and securely connected with said first housing member at their peripheries to form a space inside thereof;
• a first bearing mounted in said first bearing receiver;
• a second bearing mounted in said second bearing receiver coaxially with said first bearing;
• a magnets support formed of a electrical steel sheet plate by press-working for supporting said magnets around said stator and inside said second housing member;
• a freely rotatable shaft mounted on said first and second bearings for securely supporting said stator mounted on said shaft.

An outer rotor type brushless DC motor including a stator having coils each wound on respective teeth of said stator, and a rotor having magnets arranged to surround said stator, said DC motor comprising:

• a first housing member formed of a sheet metal by press-working and having a central cylindrical projection formed by press-working, and a first outwardly projecting bearing receiver formed inside and coaxial with said central cylinder by press-working;
• a second housing member formed of a sheet metal by press-working and having a second outwardly projecting bearing receiver coaxial with said first bearing receiver by press-working, said second housing member mating, and securely connected with, said first housing member at their peripheries to form a space inside thereof;
• a first bearing mounted in said first bearing receiver;
• a second bearing mounted in said second bearing receiver coaxially with said first bearing;
• a freely rotatable shaft mounted on said first and second bearings;
• a hollow cylindrical stator support formed from a sheet metal by press-working and having one end mounted on said bearing receiver of said first housing member and another end for receiving said stator on the outer surface of said stator support;
• a magnets support press-worked from a electrical steel sheet metal for supporting magnets around said stator and inside said second housing member, said magnets support securely mounted on said shaft.