Miniature motor

Details Miniature motor Miniature motor

1994-01-10

1994-11-08

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310220, 310 49R, H02K 1300

Patent

active

053630050

ABSTRACT:
A miniature motor comprising a housing made of a metallic material, formed into a bottomed hollow tubular shape and having a permanent magnet fixedly fitted to the inner circumferential surface thereof, a rotor consisting of an armature facing the permanent magnet and a commutator, an end cap engaged with an open end of the housing, and having brushes making sliding contact with the commutator and a pair of terminals electrically connected to the brushes; the rotor being rotatably supported by bearings provided on the bottom part of the housing and the end cap, in which a flat groove including a plane parallel to the axial line of the motor and opening toward the housing is provided on the end cap; the terminals being disposed to face the side of the groove, a chip laminated capacitor and a spring made of an electrically conductive material and formed into a substantially U shape in planar projection being disposed in the groove so as to come into contact with each other and also with the terminals.

REFERENCES:
patent: 3714481 (1973-01-01), Dijkstra
patent: 4749899 (1988-06-01), Ishizawa et al.
patent: 5013952 (1991-05-01), Sekine et al.

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