×

EVSE handle with automatic thermal shut down by NTC to ground

  • US 9,707,850 B2
  • Filed: 11/18/2014
  • Issued: 07/18/2017
  • Est. Priority Date: 11/18/2014
  • Status: Active Grant
First Claim
Patent Images

1. A circuit for automatic shutdown of charging operations in response to a temperature increase in a charging handle of an electric vehicle charging station, comprising:

  • a temperature sensor connected between a ground conductor and a high voltage conductor in a charging handle that is connected by a charging cable to an electric vehicle charging station, the charging cable including the high voltage conductor and a return conductor, the charging handle including the return conductor, wherein when the temperature sensor is exposed to an increase in temperature in the charging handle, a portion of current in the high voltage conductor flows through the temperature sensor to the ground conductor, instead of the return conductor, thereby causing the ground fault detector to trip in the charging station.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×