Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Charger inductively coupled to cell or battery
Patent
1998-03-03
1999-07-27
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Charger inductively coupled to cell or battery
336 60, 336196, H02J 700, H01F 2708
Patent
active
059295996
ABSTRACT:
An inductive coupling apparatus charges a storage device in an electric car by means of an external power source apparatus. The inductive coupling apparatus includes a coil unit assembly comprising a primary coil unit (10) and a secondary coil unit (20). The primary and secondary coil units (10, 20) comprise primary and secondary coils (12, 22) and primary and secondary cores (11, 21) for supporting the respective coils (12, 22). Spacers (13, 23) are mounted on arms (11A, 21A) of the cores (11, 21) of the units (10, 20) so that the coils (12, 22) are spaced apart from the peripheral surfaces of the arms (11A, 21A), thereby forming gaps (11D, 21D) between the arms (11A, 21A) and the coils (12, 22) to flow a cooling medium such as air therebetween. When the coils (12, 22) radiate a heat upon charging, the cooling media which flow in the gaps (11D, 21D) absorb the heat from the cores (11, 21). This prevents the heat from being accumulated in spaces between the cores (11, 21) and the coils (12, 22) and suppresses the cores (11, 21) from a rise in temperature.
REFERENCES:
patent: 5408209 (1995-04-01), Tanzer et al.
patent: 5412304 (1995-05-01), Abbott
Shimada Toshiro
Watanabe Kunihiko
Bierman Jordan B.
Sumitomo Electric Industries Ltd.
Sumitomo Wiring Systems Ltd.
Toatley Gregory J.
Wong Peter S.
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