D.C. motor with axially disposed working flux gap

Details D.C. motor with axially disposed working flux gap D.C. motor with axially disposed working flux gap

1986-12-02

1988-05-17

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318138, 310 68R, H02K 2908

Patent

active

047453451

ABSTRACT:
A p.m. d.c. motor in which a stator is structured as a magnetically permeable base upon which stator pole components are mounted in upstanding fashion. Each of the stator pole components is formed as a laminar core of elongate rectangular shape about which a plastic bobbin is slideably positioned. The field windings of the stator are wound about this bobbin to provide a structure having no flared tips or the like and wherein winding can take place on bobbins separately from the stator structure. A disk-shaped rotor carrying a sequence of flat permanent magnets is positioned over the tips of the stator components and is rotatably driven by select energization of the latter. Select skewing of the stator poles and design of the geometry of the permanent magnets functions to significantly reduce detent torque phenomena.

REFERENCES:
patent: B352950 (1975-01-01), Warren et al.
patent: 3124733 (1964-03-01), Andrews
patent: 4206379 (1980-06-01), Onda
patent: 4283664 (1981-08-01), Ebert
patent: 4288709 (1981-09-01), Matthias et al.
patent: 4629921 (1986-12-01), Gavaletz

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