Small-sized dc motor

Details Small-sized dc motor Small-sized dc motor

H - Electricity

02

K

H02K 11/00 (2006.01) H01C 7/02 (2006.01)

Patent

CA 2073195

ABSTRACT A small D.C. motor (1) provided with a flat circular or square PTC thermistor (8) between an input terminal (7) and a phosphor bronze plate (6) connected to the motor brush (5). The thermistor has electrodes on both faces and an opening provided substantially in its central portion, and it is fitted on the inside or outside of the motor casing (2). The motor shaft (9) or an extension thereof is passed through the opening in the thermistor in such a manner that the plate surface of the PTC thermistor (8) is nearly perpendicular to the shaft (9).

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