Magnetic circuit structure in rotary actuator

Electrical generator or motor structure – Dynamoelectric – Linear


Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


360105, H02K 4100, G11B 554




A magnetic circuit structure in a rotary actuator which can reduce the inductance of a coil while negligibly reducing a magnetic flux density between gaps. The magnetic circuit structure includes an E-shaped main yoke formed by integrally connecting a curved inner yoke, a curved center yoke, and a curved outer yoke. The E-shaped main yoke is manufactured by stacking a plurality of rolled steel plates. An inner magnet is mounted on the outer circumferential surface of the inner yoke opposed to the center yoke, and an outer magnet is mounted on the inner circumferential surface of the outer yoke opposed to the center yoke. A side yoke is magnetically attached to the open end of the E-shaped main yoke. A through hole extending in parallel to the axis of rotation of the rotary actuator is formed at a circumferential central portion of the center yoke.

patent: 4456934 (1984-06-01), Wedman et al.
patent: 4602232 (1986-07-01), Umehara et al.
patent: 4652779 (1987-03-01), Wilcox
patent: 4965685 (1990-10-01), Thompson et al.
patent: 5113099 (1992-05-01), Wong et al.
patent: 5179304 (1993-01-01), Kenjo et al.
patent: 5424591 (1995-06-01), Kuriyama


Say what you really think

Search for the USA inventors and patents. Rate them and share your experience with other people.


Magnetic circuit structure in rotary actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic circuit structure in rotary actuator, we encourage you to share that experience with our community. Your opinion is very important and Magnetic circuit structure in rotary actuator will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-2291268

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.