Single magnetic conductive plate structure for forming a single pole plate brushless dc motor
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsAlex Horng, Yin-Rong Horng, Ching-Sheng Hong
Life of this patent
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Abstract
A single magnetic conductive plate for a single pole plate brushless dc motor comprises a pole plate, a plurality of pole faces, and an axial hole. The pole plate, the pole faces and an axial hole are integrated into the single magnetic conductive plate. The pole plate is regarded as a base and adapted to combine with a coil to form a stator. The pole faces are punched and equi-spaced round the axial hole proximal the coil. The axial hole is adapted to combine with a mounting seat for supporting a rotor.
Claims14
A single magnetic conductive plate for a single pole plate brushless dc motor, comprising:
- a pole plate made of a single magnetic conductive sheet and serving as a base plate for combining with a coil;
- a plurality of pole faces punched in the single magnetic conductive sheet;
- and
- an axial hole formed at a center of the pole plate,
- wherein said single magnetic conductive sheet is arranged to include a complete set of pole faces for the brushless dc motor, said brushless dc motor including a single said pole plate and no other pole plates,
- wherein the axial hole is adapted to combine with a mounting seat for accommodating a bearing and a rotor extending therethrough, and
- wherein the pole plate serves as the base plate for supporting stator members, including a printed circuit board.
A single magnetic conductive plate for a single pole plate brushless dc motor, comprising:
- a pole plate made of a single magnetic conductive sheet and serving as a base plate for combining with a coil;
- a plurality of pole faces punched in the single magnetic conductive sheet;
- and
- an axial hole formed at a center of the pole plate,
- wherein said single magnetic conductive sheet is arranged to include a complete set of pole faces for the brushless dc motor, said brushless dc motor including a single said pole plate and no other pole plates, and
- wherein the pole faces are further bent to form axial pole faces adapted to face an axially-facing permanent magnet of a rotor so that the axial pole faces actuate the axially-facing permanent magnet.
A single magnetic conductive plate for a single pole plate brushless dc motor, comprising:
- a pole plate made of a single magnetic conductive sheet and serving as a base plate for combining with a coil;
- a plurality of pole faces punched in the single magnetic conductive sheet;
- and
- an axial hole formed at a center of the pole plate,
- wherein said single magnetic conductive sheet is arranged to include a complete set of pole faces for the brushless dc motor, said brushless dc motor including a single said pole plate and no other pole plates,
- wherein the pole faces comprise an inner pole face set and an outer pole face set which are equi-spaced on two concentric circles, and
- wherein the coil is proximal to an inner circumference of the inner pole face set.
Dependencies are inferred from the claim text.