Inductor devices – With temperature modifier – Heat exchanging surfaces
Patent
1984-06-27
1986-03-18
Kozma, Thomas J.
Inductor devices
With temperature modifier
Heat exchanging surfaces
336 62, 336183, H01F 2708
Patent
active
045771758
ABSTRACT:
A transformer comprising a core, a primary winding and a secondary winding in which one of the windings, preferably the winding with the least coils, is formed from a tubular member formed in a plurality of coils in the preferred embodiment of a step down transformer, the secondary winding is formed from a tubular member. A connector block at each end of the secondary winding includes an appropriate fluid passage and means for connecting a fluid coupling to the block so that the inlet and outlet of the fluid circulation system can be secured to the tubular member forming the secondary winding. The connector blocks also include threaded apertures adapted to receive the bolt for providing an electrical connection to an electrical apparatus such as a welding gun. The loops of the primary coil are interdigitally arranged with the loops of the secondary coil so that the fluid in the secondary coil absorbs heat from both the primary and secondary windings. Preferably, the core is made of laminated sections, each laminated section comprising a substantially E-shaped portion, the legs of each E-shaped portion abutting against the legs of the other E-shaped portion in each laminate layer. The primary and secondary coils are wrapped around the center leg of the core.
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Finke, "Miniature Laminated Cones of Improved Permeability for Low Frequency Transformers and Reactors," Wescom Technical Papers, Aug. 20-23, 1968.
Burgher Peter H.
Marsden Raymond F.
Kozma Thomas J.
Marelco Power Systems
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