Welding transformer and method of manufacturing same

Details Welding transformer and method of manufacturing same Welding transformer and method of manufacturing same

1991-03-18

1992-11-03

Evans, Geoffrey S.

Electric heating

Metal heating

For bonding with pressure

29605, 29609, 336 65, 336180, B23K 1124, H01F 1900

Patent

active

051608200

ABSTRACT:
A welding transformer for use in a resistance welding machine has primary and secondary coils. The primary coil includes a plurality of spaced juxtaposed coil units mounted on a base board. Each of the coil units includes a plurality of juxtaposed coil unit elements with insulating members interposed therebetween. Each of the coil unit elements includes a plurality of turns of a conductive member, and a plurality of conductors mounted on the base board and electrically interconnecting the coil unit elements. A pair of cores is combined with the coil units.

REFERENCES:
patent: 2242867 (1941-05-01), Martin
patent: 2840789 (1958-06-01), Miller
patent: 3112556 (1963-12-01), Zack
patent: 4460885 (1984-07-01), Hansen et al.
patent: 4485289 (1984-11-01), Schwartz
patent: 4652975 (1987-03-01), Scott
patent: 4819322 (1989-04-01), Higuchi et al.
patent: 5023423 (1991-06-01), Tsujii et al.

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