Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-05-21
1994-07-19
Voeltz, Emanuel T.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310260, H02K 1100, H02K 346
Patent
active
053312406
ABSTRACT:
The present invention provides an improved field assembly of an electric motor which is free from broken wires or short circuits when being incorporated in a power-driven tool. The field assembly of the invention includes a metallic core formed of a stack of annular laminations around a cavity and having an upper end and a lower end, and a terminal plate composed of an insulating material and mounted on the upper end of the core. The terminal plate includes a plurality of first terminal supporting structures each disposed in the vicinity of a first or starting end of a coil winding for supporting and retaining an end of a coil wire extending from the coil winding; and a plurality of second terminal supporting structures each disposed in the vicinity of a second or terminal end of the coil winding for supporting and retaining an end of the coil wire. A first or starting end of the coil wire is wound outside the coil winding to be received by the second terminal supporting structures while a second or terminal end of the coil wire is wound outside the coil winding to be received by the first terminal supporting structures.
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LaBalle C.
Makita Corporation
Voeltz Emanuel T.
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