Inductive coupler for transferring electrical power

Details Inductive coupler for transferring electrical power Inductive coupler for transferring electrical power

1995-04-25

1997-08-12

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

336178, 336213, 336233, H01F 300, H01F 1706, H01F 2724, H01F 700

Patent

active

056569831

ABSTRACT:
An inductive coupler forming a closed magnetic circuit by mating a primary core assembly having a primary winding and a secondary core assembly having a secondary winding for transferring electrical power from the primary winding to the secondary winding by electromagnetic induction. A thin magnetic protective sheet having high permeability is attached to the mating surfaces of at least one of said primary and secondary core assemblies or placed to be held by the core assemblies. The magnetic sheet can protect the mating surfaces of ferrite cores, if such cores are used, from breakage by absorbing and dispersing the shock of impact caused when the mating surfaces are abutted against each other to close the cores. Provision of a slit or slits in the magnetic protective sheet can reduce eddy currents flowing in the magnetic sheet.

REFERENCES:
patent: 3851287 (1974-11-01), Miller
patent: 4347472 (1982-08-01), Lemelson
patent: 4621248 (1986-11-01), Shigeta
patent: 5204653 (1993-04-01), Saitoh
patent: 5216402 (1993-06-01), Carosa

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