| 摘要 |
A relatively thin charging paddle that is cooled during charging. When charging a battery, the charging paddle is plugged into a receptacle. At this time the paddle is insulated from the receptacle. Electricity is supplied to a thin annular primary coil of the charging paddle via a conductor wire, which induces electromotive force in a secondary coil in the receptacle. A coolant chamber is formed in the paddle to cool the primary coil. The shape of the coolant chamber corresponds to that of the primary coil. A location at which cooling water is supplied to and drained from the coolant chamber is spaced from another location at which the wire is connected to the primary coil.
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