Patent ID: 6759786
Filing Date: 2004-07-06
Classification: H02K

Abstract:
A stator of a brushless motor having an inner rotor, comprising:a coil set, having an insulating layer and a central hole, said coil set having a wiring head for connecting an electric power; at least two pole plates, mounted on two end faces of said coil set respectively, each pole plate having inner pole faces and outer magnetic ally conducting rings, said inner pole faces of said two pole plates arranged in a staggered manner, said inner pole faces of each pole plate mounted in said central hole of said coil set to face a permanent magnet of the inner rotor, and said outer magnetically conducting rings of each pole plate arranged on an outer circumference of said pole plate; and a combination member made of magnetically conductive material, said combination member being mounted to and closely combined with each of said outer magnetically conducting rings of each pole plate, said combination member encompassing said outer magnetically conducting rings to enhance magnetic conduction and isolation of the stator from other components of the motor.