Induction disk motor with amorphous metal tape

Details Induction disk motor with amorphous metal tape Induction disk motor with amorphous metal tape

H - Electricity

02

K

310/90

H02K 27/26 (2006.01) H02K 1/22 (2006.01)

Patent

CA 1139814

RD 10,494 ABSTRACT OF THE DISCLOSURE An induction motor of the squirrel cage type has a stator body and a rotor body which are each made of a coil of concentric layers of a thin amorphous metal tape. The tape is slotted to receive the rotor and stator windings. The motor is similar to a conven- tional disk type motor except that the secondary, instead of being a solid copper or aluminum disk, is a coil of concentric turns of notched amorphous metal tape which improves the efficiency by reducing the effective air gap. A method of manufacture of the coil of tape is disclosed wherein identical notches are formed in the tape edge with a progresssively increasing spacing between the notches, which after winding of the tape, permits the notches to come into radial register with one another to form slots in the end of the stator or rotor body.

333497

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