Electromagnetically shielded inductive charging apparatus

Details Electromagnetically shielded inductive charging apparatus Electromagnetically shielded inductive charging apparatus

1994-04-29

1995-10-10

Peckman, Kristine L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 2, H02L 700

Patent

active

054573785

ABSTRACT:
An electromagnetically shielded inductive charging apparatus for use in charging a battery of an electric vehicle, for example. The inductive charging apparatus comprises an inductive charging coupler and a charge port disposed in the electric vehicle and coupled to the battery of the electric vehicle. The charging coupler comprises a center magnetic core, and a primary winding disposed around the center magnetic core. A charger cable is coupled between the primary winding and an external power source for coupling energy to the charging coupler. A plastic coupler housing is provided that has two mating coupler halves that are configured to provide a handle, and the mating coupler halves enclose the primary winding and the center magnetic core, and secures the charger cable in the handle. A plurality of metallized ribs are disposed in the handle that engage outer shielding braid of the charger cable. A conductive plastic strip is disposed along an exterior portion of the coupler between the handle and the primary winding. The charge port has an opening into which the inductive charging coupler is inserted. A plurality of metallized electromagnetic interference (EMI) fingers protrude into the opening and that press against the conductive plastic strip when the coupler is inserted into the charge port. The engagement of the conductive plastic strip and the EMI fingers provides for complete EMI shielding of the charging apparatus.

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patent: 5264776 (1993-11-01), Hulsey

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