Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1997-01-10
1998-02-03
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
439 34, H01M 1044
Patent
active
057148643
ABSTRACT:
A disengageable electrical capacitive coupling for transmitting high frequency AC electrical current is provided. In an electric vehicle charging system, dual first connectors form the vehicle inlet, and mating dual second connectors form the coupler. A dielectric material, such as barium titanium oxide, is positioned between the connectors to form capacitors. A holder secures the connectors together with the dielectric material in between. The interface formed is sufficient for establishing a highly efficient, compact electrostatic field for transmitting the current. Provision is made in the holder for easily disengaging the connectors once the charging cycle is complete. When utilized as a charging system, the capacitive charge coupling is connected between a high frequency drive unit on the charger side and a DC power conversion unit on the energy storage side, such as in an electric vehicle. In an alternative embodiment, the connectors comprise mating multiple section conductive plates formed of a spring metal core with a flexible dielectric coating, such as polypropylene. Variation of the various parameters of the charge coupling is utilized to enhance the power transfer capability.
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Cates Joseph A.
Rose Jeffrey A.
Electro Dynamics, Inc.
Toatley , Jr. Gregory J.
Wong Peter S.
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