IP Library Granted Patent US 10,660,242
Granted Patent B2
US 10,660,242 · App. 16/110,559 · Granted May 19, 2020

Electric vehicle inverter module heat sink

Inventors: Yunan Song (Santa Clara, CA); Colin Haag (Santa Clara, CA); Zhong Nie (Santa Clara, CA); Duanyang Wang (Santa Clara, CA); Yifan Tang (Santa Clara, CA)
Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.; SF MOTORS, INC.
H05K7/209H05K7/20854H05K7/20872H05K7/20927B60L58/10B60L2210/00B60Y2200/91B60Y2306/05B60Y2400/61
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Quick Facts
Patent No.
US 10,660,242
App. No.
16/110,559
Granted
May 19, 2020
Kind
B2
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.

Claims (65)

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;

the heat sink body having an orifice with a first set of dimensions and a first shape;

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 plurality of extended surfaces that extend into the cooling channel;

the insulator plate having a first surface and a second surface;

the insulator plate having an orifice with the first set of dimensions and the first shape;

the second surface of the insulator plate couples with a joining surface of the heat sink body to seal the cooling channel;

a heat sink lid disposed over the first surface of the insulator plate;

the heat sink lid having an orifice with the first set of dimensions and the first shape; and

the heat sink lid having 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.

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:

the first surface of the insulator plate having a cooling surface, the cooling surface coupled with the heat sink lid.

8. 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.

9. 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.

10. 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;

the heat sink body having an orifice with a first set of dimensions and a first shape;

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; and

the insulator plate having an orifice with the first set of dimensions and the first shape;

disposing a heat sink lid over the first surface of the insulator plate, the heat sink lid having 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;

the heat sink lid having an orifice with the first set of dimensions and the first shape.

11. The method of claim 10 , 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.

12. The method of claim 10 , 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.

13. The method of claim 10 , comprising:

forming a plurality of mounting holes in the heat sink lid.

14. The method of claim 10 , comprising:

disposing the heat sink module in an inverter module of a drive train unit, the drive train unit having multiple inverter modules.

15. The method of claim 10 , 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.

16. 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;

the heat sink body having an orifice with a first set of dimensions and a first shape;

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 plurality of extended surfaces that extend into the cooling channel;

the insulator plate having a first surface and a second surface;

the insulator plate having an orifice with the first set of dimensions and the first shape;

the second surface of the insulator plate couples with a joining surface of the heat sink body to seal the cooling channel;

a heat sink lid disposed over the first surface of the insulator plate;

the heat sink lid having an orifice with the first set of dimensions and the first shape; and

the heat sink lid having 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.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY STREET ADDRESS PREVIOUSLY RECORDED AT REEL: 057788 FRAME: 0977. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Oct 20, 2021
From: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.; SF MOTORS, INC.
To: CHONGQING JINKANG POWERTRAIN NEW ENERGY CO., LTD.
Reel/Frame 058184/0337 →
CORRECTIVE ASSIGNMENT TO CORRECT THE OMISSION SECOND ASSIGNOR'S NAME PREVIOUSLY RECORDED AT REEL: 057632 FRAME: 0809. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT . Recorded Oct 13, 2021
From: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.; SF MOTORS, INC.
To: CHONGQING JINKANG POWERTRAIN NEW ENERGY CO., LTD.
Reel/Frame 057788/0977 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2021
From: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.
To: CHONGQING JINKANG POWERTRAIN NEW ENERGY CO., LTD.
Reel/Frame 057632/0809 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 7, 2019
From: SF MOTORS, INC.
To: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.; SF MOTORS, INC.
Reel/Frame 048269/0324 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2018
From: SONG, YUNAN; HAAG, COLIN; NIE, ZHONG; WANG, DUANYANG; TANG, YIFAN
To: SF MOTORS, INC.
Reel/Frame 047136/0903 →