Metal working – Method of mechanical manufacture – Electrical device making
Patent
1982-03-31
1984-07-31
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29605, 310 10, 310 52, 310270, H02K 1509
Patent
active
044621523
ABSTRACT:
A method of winding and mounting superconductive coils on a cylindrical surface of the coil-carrying shaft of a rotor of a rotary electric machine. A superconductive wire is wound around the circumferential surface of a rectangular bobbin, thereby forming coils. The four straight portions of the circumferential surface are connected with each other by circularly curved surface portions. The portions of the circumferential surfaces corresponding to the axial direction of the coil-carrying shaft have a plurality of steps formed in the direction perpendicular to the axial direction of the coil-carrying shaft. A detachable side plate on the bobbin is then taken off, and the coil is removed from the bobbin. The coils thus formed are mounted on the surface of the coil-carrying shaft, in which a plurality of axially running grooves and a pair of annular recesses running in the circumferential direction of the coil-carrying shaft and connecting the ends of the grooves, the grooves and recesses being pre-formed corresponding to the coils for receiving them therein. A pair of sleeves are fitted over the recesses, thereby securely holding the end portions of the coils in the recesses.
REFERENCES:
patent: 4095333 (1978-06-01), Kuter et al.
patent: 4131988 (1979-01-01), Finegold
patent: 4152609 (1979-05-01), Cooper et al.
patent: 4217515 (1980-08-01), Long et al.
patent: 4275324 (1981-06-01), Flick
patent: 4385248 (1983-05-01), Laskaris
Iwamoto Masatami
Nomura Tatsuei
Oishi Norio
Okamoto Kouichi
Sakuyama Masaki
Hall Carl E.
Mitsubishi Denki & Kabushiki Kaisha
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