Method for making an electric motor stator

Details Method for making an electric motor stator Method for making an electric motor stator

1995-04-28

1996-11-05

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29606, 29609, 310 42, 310218, H02K 1502

Patent

active

055705030

ABSTRACT:
A method for making an electric motor stator. An annular disk is cut so as to create a radially-outer ring portion having slots and a radially-inner ring portion having spokes engaged with the slots. This step is repeated on additional disks. Then, the radially-outer ring portions are stacked together to form the stator outer shell, and the radially-inner ring portions are stacked together to form a multi-pole assembly with the aligned spokes forming the poles. Coils are wound around plastic sleeves which are each brought to, and placed over, a corresponding pole member. Then, the multi-pole assembly is positioned within the stator outer shell with the pole members engaging the aligned slots. Finally, the joined-together radially-inner ends of the spokes are cut to create narrow slits.

REFERENCES:
patent: 2607816 (1952-08-01), Ryder et al.
patent: 2695969 (1954-11-01), Yates
patent: 3365795 (1968-01-01), Jensen
patent: 3787744 (1974-01-01), Saito
patent: 3829720 (1974-08-01), Swanke et al.
patent: 3914859 (1975-10-01), Pierson
patent: 4149309 (1979-04-01), Mitsui
patent: 4438558 (1984-03-01), Mitsui
patent: 5390409 (1995-02-01), Courtney

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