Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1994-12-02
1997-01-14
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
336DIG2, H01M 1046
Patent
active
055943179
ABSTRACT:
An inductive battery charging system that uses heat conducting heat exchangers that shape electromagnetic fields produced by the windings of the charging system. The field shaping provided by the heat exchangers of the present invention improves the power handling capacity of the system. The charging system includes a charge probe that includes a primary winding of a transformer and a charge port that includes secondary windings of the transformer. The heat exchangers are heat sinks that are inserted between or are disposed adjacent turns of the windings and are used to remove heat from windings. In the present invention, the heat exchangers are also used to shape the leakage flux near the edges of the windings in such a manner that AC losses in the windings are considerably reduced. The present invention may be used to increase the inductive charging capacity of an electric vehicle battery pack to on the order of 120 KW and beyond. The present invention eliminates overheating in the at the interface between the transformer windings at a 50 KW level or higher. The present invention may be used with almost any magnetic device, such as a transformer or inductor that uses foil windings or solid wire conductors.
REFERENCES:
patent: 5341083 (1994-08-01), Klontz et al.
patent: 5379021 (1995-01-01), Ito et al.
patent: 5408209 (1995-04-01), Tanzer et al.
patent: 5412304 (1995-05-01), Abbott
patent: 5434493 (1995-07-01), Woody et al.
patent: 5483143 (1996-01-01), Hall et al.
Radys Ray G.
Ramos Sergio
Woody George R.
Yeow Eddie Y.
Delco Electronics Corp.
Navarre Mark A.
Tso Edward H.
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