Charging port cooling with phase changing material and porous heat conductor cage

Patent metadata

Field	Value
Publication number	US-11654786-B2
Application number	US-202017074541-A
Country	US
Kind code	B2
Filing date	Oct 19, 2020
Priority date	Oct 19, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

An electric vehicle charging port includes a pair of charging pins each connected to a respective charging cable by a base. A pair of porous metallic cages surround the base of the pair of charging pins. A phase change material disposed in the pair of porous metallic cages and a vapor chamber is disposed between the base of the pair of charging pins and the pair of porous cage. The phase change material with an optional vapor chamber and high thermal conductivity (metal or graphite) foam or mesh to provide faster response of transient heat generation.

First claim

What is claimed is:

1. An electric vehicle charging port, comprising:
a pair of charging pins each connected to a respective charging cable by a base;
a pair of porous cages surrounding the base of the pair of charging pins, the pair of porous cages are made from one of a metal foam, a graphite foam and a metal mesh; and
a phase change material disposed in the pair of porous cages.

2. The electric vehicle charging port according to claim 1 , wherein the phase change material includes one of a paraffin wax or a salt hydrate.

3. The electric vehicle charging port according to claim 1 , further comprising a pair of vapor chambers disposed between the respective base of the pair of charging pins and a respective one of the pair of porous cages.

4. The electric vehicle charging port according to claim 3 , wherein the vapor chamber includes one of methanol, ammonia, water and acetone therein.

5. The electric vehicle charging port according to claim 1 , further comprising a metal housing surrounding the pair of porous cages.

6. The electric vehicle charging port according to claim 1 , further comprising a plurality of heat pipes disposed in the pair of porous cages.

7. The electric vehicle charging port according to claim 1 , further comprising a plurality of air flow passages in the pair of porous cages.

8. The electric vehicle charging port according to claim 7 , further comprising an air duct in communication with the plurality of air flow passages.

9. The electric vehicle charging port according to claim 8 , further comprising a fan disposed in communication with the air duct.

10. An electric vehicle, comprising:
a vehicle body; and
an electric vehicle charging port disposed on the vehicle body and including
a pair of charging pins each connected to a respective charging cable by a base;
a pair of porous cages surrounding the base of the pair of charging pins, the pair of porous cages are made from one of a metal foam, a graphite foam and a metal mesh; and
a phase change material disposed in the pair of porous cages.

11. The electric vehicle according to claim 10 , wherein the phase change material includes one of a paraffin wax or a salt hydrate.

12. The electric vehicle according to claim 10 , further comprising a pair of vapor chambers disposed between the respective base of the pair of charging pins and a respective one of the pair of porous cages.

13. The electric vehicle according to claim 10 , further comprising a plurality of air flow passages in the pair of porous cages.

14. The electric vehicle according to claim 13 , further comprising an air duct in communication with the plurality of air flow passages.

15. The electric vehicle according to claim 14 , further comprising a fan disposed in communication with the air duct.

16. The electric vehicle according to claim 12 , wherein the vapor chamber includes one of methanol, ammonia, water and acetone therein.

17. The electric vehicle according to claim 10 , further comprising a metal housing surrounding the pair of porous cages.

18. The electric vehicle according to claim 10 , further comprising a plurality of heat pipes disposed in the pair of porous cages.

19. The electric vehicle according to claim 10 , further comprising a housing surrounding the pair of porous cages.

20. The electric vehicle charging port according to claim 1 , further comprising a housing surrounding the pair of porous cages.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Han Taeyoung
• Yen Chih-Hung
• Chen Kuo-Huey
• Khalighi Bahram
• Domenech-Llopis Vicente
• Vaddiraju Srinivasa Rao
• Ketkar Satish P

Classifications

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title

• H01R2201/26

  for vehicles · CPC title

• B60L53/302 Primary

  Cooling of charging equipment · CPC title

• Y02T90/14

  Plug-in electric vehicles · CPC title

• B60L53/16 Primary

  Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles · CPC title