Electric vehicle charging apparatus for controlling heat during charging

Patent metadata

Field	Value
Publication number	US-9751413-B2
Application number	US-201514788280-A
Country	US
Kind code	B2
Filing date	Jun 30, 2015
Priority date	Sep 15, 2014
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A charging apparatus is provided. The charging apparatus includes a plug supplying electrical energy to an electric vehicle (EV) through a plurality of plug pins; a plurality of temperature sensors disposed in the plug and measuring the temperatures of the plurality of plug pins; and a control unit determining the presence or absence of the overheating of the plug based on the temperatures measured from the plurality of temperature sensors.

First claim

What is claimed is:

1. A charging apparatus comprising:
a plug supplying electrical energy to an electric vehicle (EV) through a plurality of plug pins;
a plurality of temperature sensors located in the plug and measuring temperatures of the plurality of plug pins; and
a control unit determining whether the plug overheats based on the measured temperatures,
wherein the plug comprises a magnetic sensor measuring a magnetic field, and
wherein the control unit determines a charging mode based on the magnetic field measured by the magnetic sensor.

2. The charging apparatus according to claim 1 , wherein the plurality of temperature sensors are located vertically between the plug pins at specific intervals from the plug pins.

3. The charging apparatus according to claim 1 , wherein the plurality of temperature sensors are located between the plug pins at specific intervals from the plug pins such that the plurality of temperature sensors have bilateral symmetry.

4. The charging apparatus according to claim 1 , wherein the plug further comprises a plurality of resistors each connected to one end of the magnetic sensor.

5. The charging apparatus according to claim 1 , wherein the plug further comprises resistors connected to one end of each of the plurality of temperature sensors.

6. The charging apparatus according to claim 5 , wherein the resistors each have a different resistance.

7. The charging apparatus according to claim 6 , wherein the control unit further determines a short between circuits by using the resistors.

8. The charging apparatus according to claim 1 , wherein the control unit further determines that the plug overheats when the measured temperatures are equal to or higher than a specific level.

9. The charging apparatus according to claim 8 , wherein the control unit further decreases an amount of charging or stops charging when it is determined that the plug overheats.

10. The charging apparatus according to claim 9 , wherein the control unit further decreases the amount of charging before stopping charging.

Assignees

• Lsis Co Ltd

Inventors

• Im Chang Jun

Classifications

• H01R2201/26

  for vehicles · CPC title

• H01R13/7137

  with thermal interrupter (H01R13/7132 takes precedence) · CPC title

• H01R13/6683

  with built-in sensor · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• B60L53/18

  Cables specially adapted for charging electric vehicles · CPC title