Brushless DC motor

Details Brushless DC motor Brushless DC motor

1985-09-10

1986-12-30

Shoop, Jr., William M.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 318439, 310 68R, H02K 2908

Patent

active

046331492

ABSTRACT:
An axial air gap sub-fractional horsepower brushless DC motor of the pancake type including a rotor assembly having a disc-like annular cylindrical permanent magnet supported on a shaft, the magnet having plural pairs of axially magnetized magnetic poles, and a stator formed of two identical stator component sub-assemblies located on opposite sides of the permanent magnet each including a thin disc-like annular backing plate of soft magnetic material, a plurality of coils supported thereon arranged in a circular path forming an odd number of coils, and a hall effect sensing element located along the circular path between one pair of circumferentially adjacent coils. A pair of generally cup shaped housing halves of similar configuration are assembled on opposite sides of the rotor and the pair of identical stator component sub-assemblies for encasing the rotor and said stator component sub-assemblies therein.

REFERENCES:
patent: 3539817 (1970-11-01), Darrieus
patent: 4072881 (1978-02-01), Ban
patent: 4330727 (1982-05-01), Oudet
patent: 4551645 (1985-11-01), Takahashi et al.
patent: 4568847 (1986-02-01), Schmider
patent: 4568862 (1986-02-01), Tassinario

Affiliated with

Also associated with

Rating

Brushless DC motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brushless DC motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brushless DC motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1549698