Permanent magnet type stepping motor

Details Permanent magnet type stepping motor Permanent magnet type stepping motor

1991-07-17

1993-11-09

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310112, 310156, 310257, H02K 3700

Patent

active

052606163

ABSTRACT:
A permanent magnet type stepping motor comprising first and second stator assemblies arranged coaxially about a longitudinal axis. Each assembly includes first and second ring-shaped stators made of magnetic material. The first ring-shaped stator has a central portion with an opening therein, an annular yoke surrounding the periphery of the central portion and a plurality of pole pieces distributed about the circumference of the opening and extending toward a plane transverse to the axis. The second ring-shaped stator has a central portion with an opening therein, an annular substantially planar yoke surrounding the periphery of the central portion and a plurality of pole pieces distributed about the circumference of the opening and extending away from the transverse plane so as to interleave with the pole pieces of the first stator. The central portion of the second stator protrudes from the plane of the yoke in a direction away from the transverse plane. A coil is interposed between the first and second ring-shaped stators and surrounds the pole pieces. The first and second stator assemblies are arranged with respect to the transverse plane so that the second ring-shaped stator of the first stator assembly is adjacent the second ring-shaped stator of the second stator assembly at the transverse plane thereby forming a gap between the protruding central portions of the second stators of the first and second stator assemblies. A permanent magnet having N and S poles distributed alternately about the outer circumference thereof is rotatably supported within the openings in the central portions of the first and second stators of the first and second stator assemblies.

REFERENCES:
patent: 2548633 (1951-04-01), Stephenson
patent: 4355248 (1982-10-01), Manson
patent: 4363984 (1982-12-01), Torii
patent: 4438361 (1984-03-01), Manson
patent: 4480614 (1984-11-01), Kobashi
patent: 4672247 (1987-06-01), Madsen
patent: 4714850 (1987-12-01), Akiba
patent: 4990806 (1991-05-01), Kikuchi et al.

Affiliated with

Also associated with

Rating

Permanent magnet type stepping 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 Permanent magnet type stepping motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet type stepping motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1145458