Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-05-10
1994-07-12
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
29598, H02K 2112
Patent
active
053291964
ABSTRACT:
A system of manufacturing a metal wrapped non-metallic magnetic component useable about a rotor or the like comprises welding the ends of a strip of sheet metal to form a cylinder. If necessary, the cylinder may be cut about its entire circumference at two axial locations thereby isolating a central portion of the cylinder having exposed a first axial end and a second axial end. The cylinder is then form rolled to deform the first and second axial ends radially inward to form a channel located along the inner diameter. The magnetic material may then be inserted within the channel between a deformed first and second axial ends of the central cylindrical portion. The central cylindrical portion may then be form rolled such that the flanges are folded about the ends of the magnetic material.
REFERENCES:
patent: 4529900 (1985-07-01), Uzuka
patent: 4625135 (1986-11-01), Kasabian
patent: 4695419 (1987-09-01), Inariba
patent: 4949000 (1990-08-01), Petersen
3M Electrical Specialities Division, Data Sheet, 3M Brand Magnet Material B-1030 "Prototyping for DC PM Motors and Brushless Motors with 3M Flexible Permanent Magnet Material" B-1030, 1990.
Nguyen Matthew
Stephan Steven L.
Temper Corporation
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