Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1992-06-30
1993-11-23
Peckman, Kristine L.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 21, H02J 700
Patent
active
052647765
ABSTRACT:
An inductive charge port for an electric vehicle in which part of the inductive coupling transformer core is attached to the inside of an access door on the vehicle, and wherein only a primary coil assembly is inserted into the charging device when charging the vehicle. The charge port includes a primary coil assembly having a primary winding that is coupled by way of an electrical cable to a power source, and a secondary coil assembly disposed in the vehicle. A housing in the vehicle has the secondary coil assembly disposed therein. The secondary coil assembly includes a transformer core having a first portion disposed in the housing. A secondary winding is disposed in a cavity in the first portion of the transformer core which receives the primary winding therein. A hinged access door has a compressible, resilient member disposed on its inner wall and a second portion of the transformer core is secured to the compressible member. The second portion of the transformer core forms a lid or cap that mates with the first portion to form a complete transformer core. The mating first and second portions tightly secure the primary winding in the cavity when the door is closed. The secondary winding is coupled by way of an electrical cable to a charging circuit that is coupled to a battery of the vehicle. When the primary coil is inserted into the cavity and the external power source is energized, power flows from the power source through the inductive charge port to the battery. The present invention provides for an easy and safe inductive coupling that eliminates the possibility of shock hazard to a user when recharging the electric vehicle.
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Alkov L. A.
Denson-Low W. K.
Hughes Aircraft Company
Peckman Kristine L.
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