Stator and DC brushless motors including the stator

Details Stator and DC brushless motors including the stator Stator and DC brushless motors including the stator

2009-07-14

2011-10-04

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

08030809

ABSTRACT:
A stator for a DC brushless motor includes an annular insulating ring integrally formed from an insulating material. The annular insulating ring includes an outer peripheral face and an inner peripheral face. A plurality of winding portions extends from at least one of the outer and inner peripheral faces. A coil unit is wound around each of the plurality of winding portions. The stator can be utilized in various DC brushless motors. Since the stator does not include conventional silicon steel plates and is comprised of an annular insulating ring and a coil unit, advantages including low manufacturing costs, assembling convenience, possible reduction in the axial height, and high rotational stability are obtained.

REFERENCES:
patent: 5465020 (1995-11-01), Peterson
patent: 5917262 (1999-06-01), Huang et al.
patent: 5952760 (1999-09-01), Miyazawa et al.
patent: 6400053 (2002-06-01), Horng
patent: 7687959 (2010-03-01), Lee

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