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Charging cable, charging cable unit, and charging system for electric vehicle

  • US 8,736,226 B2
  • Filed: 10/22/2009
  • Issued: 05/27/2014
  • Est. Priority Date: 10/28/2008
  • Status: Expired due to Fees
First Claim
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1. A charging cable for an electric vehicle comprising:

  • a power plug adapted to be detachably connected to a power socket of a commercial power source;

    a temperature detecting unit for detecting a temperature of the power plug;

    a cable connector adapted to be detachably connected to an electric vehicle for supplying a charging current to a battery of the electric vehicle;

    a switching unit for opening and closing a current path between the power plug and the cable connector;

    a leakage detecting unit for detecting an electric leakage based on a current flowing through the current path;

    a power cutoff unit for opening the switching unit when the detected temperature of the temperature detecting unit exceeds a threshold value or when the leakage detecting unit detects the electric leakage; and

    a display device for displaying charging information of the electric vehicle.

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