Metal working – Method of mechanical manufacture – Electrical device making
Patent
1987-03-24
1988-10-18
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
72393, 310 42, 310154, H02K 1502
Patent
active
047777176
ABSTRACT:
A method for manufacturing a hollow cylindrical magnetic yoke assembly for a magnet-type electric motor, including a plurality of permanent magnets attached to the inner peripheral surface of the yoke. The method comprises the steps of expanding a hollow cylindrical tube of a magnetic material by an expander having a plurality of expander elements capable of being moved radially outwards to expand the radius of the tube. The number of the expander elements is equal to the number of the permanent magnets of the electric motor, and one permanent magnet is fitted to each concaved surface of the magnetic yoke formed by the convexed cylindrical outer surface of each expander element.
REFERENCES:
patent: 2461565 (1949-02-01), Morrill
patent: 4454437 (1984-06-01), Tanaka et al.
patent: 4525632 (1985-06-01), Tanaka
patent: 4636107 (1987-01-01), Casler et al.
Kounou Tadami
Okamoto Kyoichi
Hall Carl E.
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Method for manufacturing a magnet-type motor yoke assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for manufacturing a magnet-type motor yoke assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing a magnet-type motor yoke assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1186947