Motor structure

Details Motor structure Motor structure

1996-11-21

1998-11-10

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310 67R, 310162, H02K 3700, H02K 1902

Patent

active

058348662

ABSTRACT:
This invention provides a two-phase motor which is applicable to a field where high rotation precision is required as in an FDD spindle motor, which requires a low cost, and which can maintain stable characteristics free from magnetic balance fluctuation between the two phases due to assembly. This motor has a ferromagnetic stator having N stator salient poles and a rotor magnet having M poles. N and M are selected to be both even numbers so a relation N:M=2:2n-1 (n is a natural number) holds. The N stator salient poles are divided into first and second salient pole groups of N/2 stator salient poles on which windings are concentratedly wound. The stator salient poles belonging to the first and second salient pole groups are alternately arranged in the circumferential direction of the stator. The phases of the windings of the stator salient poles belonging to the first and second salient pole groups are sequentially opposite to each other in the circumferential direction in units of groups. The windings of the stator salient poles belonging to the first and second salient pole groups are sequentially, electrically connected in the circumferential direction in units of groups to respectively form first and second phases, thereby providing a two-phase arrangement.

REFERENCES:
patent: 3790834 (1974-02-01), Tanka
patent: 4394594 (1983-07-01), Schmider et al.
patent: 5382853 (1995-01-01), Von Der Heide et al.
patent: 5463507 (1995-10-01), Morehouse et al.

Affiliated with

Also associated with

Rating

Motor structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1519534