Rotor for miniature motors

Details Rotor for miniature motors Rotor for miniature motors

1988-02-26

1989-05-23

Shoop, Jr., William M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310236, 310 40MM, H01R 3946

Patent

active

048333573

ABSTRACT:
A rotor for miniature motors having an annular spark-quenching element for suppressing electrical sparks generated between commutator segments and brushes, in which the commutator segment is composed of a commutating portion coming into sliding contact with the brushes, and a terminal portion connected to a lead wire of a rotor winding; the terminal portion having an element-retaining portion on which the annular spark-quenching element is mounted; and the annular spark-quenching element being electrically connected to the element-retaining portion, as mounted thereon.

REFERENCES:
patent: 3487248 (1969-12-01), Kaneko et al.
patent: 3488538 (1970-01-01), Hayashi
patent: 4420704 (1983-12-01), Mabuchi
patent: 4521710 (1985-06-01), Mabuchi
patent: 4584498 (1986-04-01), Strobl
patent: 4734607 (1988-03-01), Ikawa et al.

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