Armature coil slots having grooves formed in its throat

Details Armature coil slots having grooves formed in its throat Armature coil slots having grooves formed in its throat

1988-01-19

1989-08-22

Shoop, Jr., William M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310216, H02K 122

Patent

active

048598950

ABSTRACT:
An armature for a d. c. motor comprises a shaft, a commutator, a coil and an armature core having a plurality of slots at its circumference to receive the coil. The opening portion of the slots is made smaller than the diameter of a wire constituting the coil, and a groove and a coil constraining portion are formed in a throat portion between the opening portion and a coil receiving portion formed in the slot.

REFERENCES:
patent: 1931961 (1933-10-01), Kopeliowitsch
patent: 4147946 (1979-04-01), Linscott, Jr. et al.
patent: 4473765 (1984-09-01), Butman, Jr. et al.
patent: 4559463 (1985-12-01), Kobayashi
patent: 4572980 (1986-02-01), Anderson et al.

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