Moving-coil type motor

Details Moving-coil type motor Moving-coil type motor

H - Electricity

02

K

310/51

H02K 33/18 (2006.01)

Patent

CA 1111474

MOVING-COIL TYPE MOTOR ABSTRACT OF THE DISCLOSURE A moving-coil type motor according to the present invention is composed of a hollow moving coil to which electrical energy is to be applied, a magnetic circuit member made of a material having high permeability which consists of an inner portion disposed within the hollow part of said moving coil and an outer portion disposed outside the same coil, said inner and outer portions being interconnected at their rear ends, and a magnet installed on said magnetic circuit member. The foregoing moving coil is fixed to an arm member supported to be capable of oscillating around a shaft, is curved into a circular arc centering around said shaft, and has a square-shaped cross section. The magnetic circuit member is also curved into a circular arc centering around the foregoing shaft similar to the moving coil, and the shape of the cross section of both the inner portion and the outer portion thereof is square similar to the shape of cross section of the moving coil.

314746

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