Electric vehicle inverter module heat sink

Patent metadata

Field	Value
Publication number	US-10667440-B2
Application number	US-201816234242-A
Country	US
Kind code	B2
Filing date	Dec 27, 2018
Priority date	Apr 26, 2018
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

Provided herein are a heat sink module of an inverter module to power an electric vehicle. The heats sink module can include a heat sink body having a plurality of mounting holes, a fluid inlet and a fluid outlet. The heats sink module can include a cooling channel that can be fluidly coupled with the fluid inlet and the fluid outlet. The heats sink module can include an insulator plate having a first surface and a second surface. The second surface of the insulator plate can couple with a joining surface of the heat sink body to seal the cooling channel. The heats sink module can include a heat sink lid disposed over the insulator plate. The heat sink lid can have a plurality of mounting feet to couple with the mounting holes of the heat sink body to secure the heat sink lid to the heat sink body.

First claim

What is claimed is:

1. A heat sink module of an inverter module to power an electric vehicle, comprising: a heat sink body having a plurality of mounting holes, a fluid inlet and a fluid outlet; a cooling channel formed in the heat sink body; the cooling channel fluidly coupled with the fluid inlet and the fluid outlet; an insulator plate coupled with the heat sink body; the insulator plate having a first surface and a second surface; an open inner region formed in the insulator plate; the second surface of the insulator plate couples with a joining surface of the heat sink body to seal the cooling channel, the insulator plate forming a top surface of the cooling channel; a heat sink lid disposed over the first surface of the insulator plate; and the heat sink lid to couple with the mounting holes of the heat sink body to secure the heat sink lid to the heat sink body.

2. The heat sink module of claim 1 , comprising:
a plurality of connection points formed on an outer surface of the heat sinks lid.

3. The heat sink module of claim 1 , comprising:
a plurality of connection points formed on an outer surface of the heat sink body.

4. The heat sink module of claim 1 , comprising:
a plurality of locating pins coupled with a first surface of the heat sink lid.

5. The heat sink module of claim 1 , comprising:
a plurality of locating pins coupled with the first surface of the insulator plate.

6. The heat sink module of claim 1 , comprising:
a plurality of mounting holes formed in the heat sink lid.

7. The heat sink module of claim 1 , comprising:
an open inner region formed in the heat sink lid.

8. The heat sink module of claim 1 , comprising:
an open inner region formed in the heat sink body.

9. The heat sink module of claim 1 , comprising:
the first surface of the insulator plate having a cooling surface, the cooling surface coupled with the heat sink lid.

10. The heat sink module of claim 1 , comprising:
the heat sink module disposed in an inverter module of a drive train unit, the drive train unit having multiple inverter modules.

11. The heat sink module of claim 1 , comprising:
the heat sink module disposed in an inverter module of a drive train unit, the drive train unit disposed in an electric vehicle.

12. A method of providing a heat sink module of an inverter module to power an electric vehicle, the method comprising: providing a heat sink body of a heat sink module; forming a plurality of mounting holes, a fluid inlet and a fluid outlet in the heat sink body; forming a cooling channel in the heat sink body, the cooling channel fluidly coupled with the fluid inlet and the fluid outlet; coupling an insulator plate with the heat sink body, the insulator plate having a first surface and a second surface, the first surface corresponding to a cooling surface and the second surface of the insulator plate to couple with a joining surface of the heat sink body and seal the cooling channel, the insulator plate forming a top surface of the cooling channel; forming an open inner region in the insulator plate; and disposing a heat sink lid over the first surface of the insulator plate, the heat sink lid to couple with the mounting holes of the heat sink body to secure the heat sink lid to the heat sink body.

13. The method of claim 12 , comprising:
forming a plurality of connection points on an outer surface of the heat sink lid; and
forming a plurality of connection points on an outer surface of the heat sink body.

14. The method of claim 12 , comprising:
coupling a plurality of locating pins with a first surface of the heat sink lid; and
coupling a plurality of locating pins with the first surface of the insulator plate.

15. The method of claim 12 , comprising:
forming a plurality of mounting holes in the heat sink lid.

16. The method of claim 12 , comprising:
disposing the heat sink module in an inverter module of a drive train unit, the drive train unit having multiple inverter modules.

17. The method of claim 12 , comprising:
providing the heat sink module in an inverter module of a drive train unit; and
providing the drive train unit in an electric vehicle.

18. An electric vehicle, comprising: a heat sink module for an inverter module of an electric vehicle, the heat sink module comprising: a heat sink body having a plurality of mounting holes, a fluid inlet and a fluid outlet; a cooling channel formed in the heat sink body; the cooling channel fluidly coupled with the fluid inlet and the fluid outlet; an insulator plate coupled with the heat sink body; the insulator plate having a first surface and a second surface; an open inner region formed in the insulator plate; the second surface of the insulator plate couples with a joining surface of the heat sink body to seal the cooling channel, the insulator plate forming a top surface of the cooling channel; a heat sink lid disposed over the first surface of the insulator plate; and the heat sink lid to couple with the mounting holes of the heat sink body to secure the heat sink lid to the heat sink body.

Assignees

• Sf Motors Inc

Inventors

• Song Yunan
• Haag Colin
• Nie zhong
• Wang Duanyang
• Tang Yifan

Classifications

• B60Y2306/05

  Cooling · CPC title

• H05K7/20854

  Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20863 takes precedence) · CPC title

• B60Y2200/91

  Electric vehicles · CPC title

• B60L3/003

  relating to inverters · CPC title

• H05K7/20872

  Liquid coolant without phase change · CPC title