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Inductive charger coupling for electric vehicles

  • US 6,154,005 A
  • Filed: 03/17/1999
  • Issued: 11/28/2000
  • Est. Priority Date: 03/20/1998
  • Status: Expired due to Fees
First Claim
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1. An inductive charger coupling for charging a battery using electromagnetic induction, the coupling comprising:

  • a charging paddle, wherein the paddle includes a primary core, a primary coil and a paddle communication circuit for receiving information representing the charging state of the battery, the primary coil being connected to a power source and wound around the primary core, wherein the paddle circuit board includes a paddle antenna and the paddle communication circuit, the paddle antenna being connected to the paddle communication circuit, wherein the paddle antenna is a conductive print pattern formed on the paddle circuit board; and

    a receptacle, in which the paddle is received, for delivering power to the battery, wherein the receptacle includes a secondary core, a secondary coil, a receptacle circuit board and a receptacle communication circuit for transmitting the information, the secondary coil being electrically connected to the battery and wound around the secondary core, wherein the receptacle circuit board includes a receptacle antenna and the receptacle communication circuit, the receptacle antenna being connected to the receptacle communication circuit by a connecting line made of a conductive print pattern formed on the receptacle circuit board, wherein the receptacle antenna is a conductive print pattern formed on the receptacle circuit board.

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