Metal working – Method of mechanical manufacture – Electrical device making
Patent
1991-08-13
1993-05-18
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29872, 219 1043, H02K 1506
Patent
active
052109283
ABSTRACT:
A method of connecting an end portion of an enameled wire forming a winding of an electric motor to one end of a conductor of a lead includes the steps of heating an enamel coating on the end portion of the enameled wire by a high-frequency current to separate the enamel coating from a conductor of the enameled wire, and removing the separated enamel coating to expose a corresponding end portion of the conductor of the enameled wire. The enameled wire thus processed is wound around the outer peripheral surface of the insulating layer of the lead to form a few turns, and the exposed end portion of the conductor of the lead is then wound around the exposed end portion of the conductor of the enameled wire to form a connection. Thereafter, the two conductors are welded together at an end of the connection by TIG welding, thereby completing the connection.
REFERENCES:
patent: 3832767 (1974-09-01), Petree
patent: 5113574 (1992-05-01), Nuss
Niimura Noriyuki
Seshita Takashi
Hall Carl E.
Hitachi , Ltd.
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