Method of making electrical conductor with a longitudinal groove

Details Method of making electrical conductor with a longitudinal groove Method of making electrical conductor with a longitudinal groove

1993-10-29

1995-10-03

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

29825, 310 64, H01B 4300

Patent

active

054541620

ABSTRACT:
An electrical conductor assembly includes a plurality of identical conductors having a longitudinal direction and a stacking direction perpendicular thereto. At least one insulating layer is to be inserted between each two respective conductors and stacked therewith in the stacking direction. Each of the conductors has two substantially flat main sides oriented perpendicular to the stacking direction and a maximum thickness in the stacking direction. Each of the conductors has at least one set of slots in succession approximately in the longitudinal direction. Each of the slots leads approximately in the stacking direction through a respective one of the conductors and has a sharp-edged mouth in each of the main sides. At least one of the main sides of each of the conductors has a longitudinal groove being associated with the set of slots, being oriented approximately parallel to the longitudinal direction, defining two groove walls approximately parallel to the stacking direction, defining a groove bottom approximately perpendicular to the stacking direction and having a groove depth as measured in the stacking direction being small relative to the maximum thickness. The mouth in the main side at each of the slots is spaced apart from each of the groove walls in the groove bottom. An embodiment with only one conductor and no insulating layer as well as a method of production and a winding for a dynamo-electric machine are also provided.

REFERENCES:
patent: 2903609 (1959-09-01), Waddington
patent: 3119033 (1964-01-01), Horsley et al.
patent: 4152610 (1979-05-01), Wallenstein
"Baustoffe der Wicklungen elektrischer Maschinen", Knobloch.. H. Sequenz, Springer Verlag, pp. 1-4.

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