Multi-function beam with integrated structural, cooling, and transverse elastic compliance functions for use with electric vehicle battery packs

Patent metadata

Field	Value
Publication number	US-2025096357-A1
Application number	US-202318499726-A
Country	US
Kind code	A1
Filing date	Nov 1, 2023
Priority date	Sep 15, 2023
Publication date	Mar 20, 2025
Grant date	—

Abstract

The present disclosure describes a multi-function, integrated Super Beam assembly structure with integrated structural, cooling, and transverse elastic compliance functions; and Thermal Management Propagation (TMP) protection. The Super Beam assembly includes a pair of parallel face plates, coolant channel cover plates, and coolant channels that are defined by the face plate and the one or more coolant channel cover plates. The structural design of the cooling channels, and the corresponding air gaps formed in-between them, allows a transverse elastic compliance of the Super Beam assembly to be tuned to different amounts of elasticity. Top, bottom and/or end structural channels may be included. A pair of TMP suppression channels may be attached to the Super Beam assembly structure with an adhesive “thermal fuse” that preferentially melts and causes the pair of TMP suppression channels to detach from the Super Beam assembly during overheating in a TMP event.

First claim

What is claimed is:

1 . A multi-function, integrated beam assembly with integrated structural, cooling, and transverse elastic compliance functions, comprising:
(a) a left face plate; (b) a right face plate; (c) one or more left coolant channel cover plates; (d) one or more right coolant channel cover plates; (e) one or more left coolant channels, defined by the left face plate and one or more left coolant channel cover plates; and (f) one or more right coolant channels, defined by the right face plate and by the one or more right coolant channel cover plates; wherein the one or more left coolant channel cover plates are attached to the left face plate; wherein the one or more right coolant channel cover plates are attached to the right face plate; and wherein the left face plate is oriented parallel to the right face plate.

2 . The multi-function, integrated beam assembly of claim 1 , further comprising:
a left coolant inlet disposed at a proximal end of the left face plate; a left coolant outlet disposed at a distal end of the left face plate; a right coolant inlet disposed at a proximal end of the right face plate; and a right coolant outlet disposed at a distal end of the right face plate.

3 . The multi-function, integrated beam assembly of claim 1 ,
wherein the one or more left coolant channels have a C-shaped cross-section; and wherein the one or more right coolant channels have a C-shaped cross-section.

4 . The multi-function, integrated beam assembly of claim 1 , further comprising:
a left battery cell disposed adjacent to the left face plate; and a right battery cell disposed adjacent to the right face plate.

5 . The multi-function, integrated beam assembly of claim 4 , further comprising:
a left Thermal Interface Material (TIM) disposed in-between the left battery cell and the left face plate; and a right Thermal Interface Material (TIM) disposed in-between the right battery cell and the right face plate.

6 . The multi-function, integrated beam assembly of claim 1 , further comprising a top structural channel that is attached to the left face plate and to the right face plate.

7 . The multi-function, integrated beam assembly of claim 6 , wherein the top structural channel is attached to an upper left extension of the left face plate; and is attached to an upper right extension of the right face plate.

8 . The multi-function, integrated beam assembly of claim 6 , wherein the top structural channel has a T-shaped or M-shaped cross-section.

9 . The multi-function, integrated beam assembly of claim 6 , further comprising:
an upper left flange integrally attached to the left face plate; and an upper right flange integrally attached to the right face plate; wherein the top structural channel is attached to the upper left flange and the upper right flange.

10 . The multi-function, integrated beam assembly of claim 9 ,
wherein the top structural channel is adhesively attached to the left upper flange with a left adhesive strip; and wherein the top structural channel is adhesively attached to the right upper flange with a right adhesive strip.

11 . The multi-function, integrated beam assembly of claim 1 , further comprising a bottom structural channel that is attached to the left face plate and to the right face plate.

12 . The multi-function, integrated beam assembly of claim 11 , wherein the bottom structural channel has an I-shaped cross-section.

13 . The multi-function, integrated beam assembly of claim 1 ,
wherein a left bottom portion of the left face plate has a Zig-Zag shaped cross-section; and wherein a right bottom portion of the right face plate has a Zig-Zag shaped cross-section.

14 . The multi-function, integrated beam assembly of claim 1 , further comprising:
one or more upper air gaps disposed in-between the left face plate and the right face plate; and one or more lower air gaps disposed in-between the left face plate and the right face plate.

15 . The multi-function, integrated beam assembly of claim 6 , wherein the top structural channel has a width that is less than or equal to a width of a battery cell.

16 . The multi-function, integrated beam assembly of claim 11 , wherein the bottom structural channel has a width that is less than or equal to a width of a battery cell.

17 . A multi-function, integrated beam assembly with integrated structural, cooling, and transverse elastic compliance functions, comprising:
(a) a left face plate; (b) a right face plate; (c) one or more left coolant channel cover plates; (d) one or more right coolant channel cover plates; (e) one or more left coolant channels, defined by the left face plate and the one or more left coolant channel cover plates; (f) one or more right coolant channels, defined by the right face plate and by the one or more right coolant channel cover plates; (g) a top Thermal Management Propagation (TMP) suppression channel attached to a top portion of the Super Beam assembly; and (h) a bottom TMP suppression channel attached to a bottom portion of the Super Beam assembly; and wherein the left face plate is oriented parallel to the right face plate.

18 . The multi-function, integrated beam assembly of claim 17 , further comprising:
a left upper flange integrally attached to the left face plate; a right upper flange integrally attached to the right face plate; a left lower flange integrally attached to the left face plate; a right lower flange integrally attached to the right face plate; a left upper thermal fuse disposed between the top TMP suppression channel and the left upper flange; a right upper thermal fuse disposed between the top TMP suppression channel and the right upper flange; a left lower thermal fuse disposed between the bottom TMP suppression channel and the left lower flange; and a right lower thermal fuse disposed between the bottom TMP suppression channel and the right lower flange.

19 . The multi-function, integrated beam assembly of claim 17 ,
wherein the top TMP suppression channel comprises one or more upper Z-fold bellows segments; and wherein the bottom TMP suppression channel comprises one or more lower Z-fold bellows segments.

20 . An electric vehicle, comprising:
an electric motor vehicle body; a battery pack connected to the electric motor vehicle body; and one or more multi-function, integrated beam assemblies disposed inside of the battery pack, wherein each multi-function, integrated beam assembly comprises:
(a) a left face plate;
(b) a right face plate;
(c) one or more left coolant channel cover plates;
(d) one or more right coolant channel cover plates;
(e) one or more left coolant channels, defined by the left face plate and by the one or more left coolant channel cover plates; and
(f) one or more right coolant channels, defined by the right face plate and by the one or more right coolant channel cover plates; and
wherein the left face plate is oriented parallel to the left face plate.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Huang Lu
• Wang hui-ping
• Duan Chengwu
• Lahr Derek F
• Hu Zhenwen
• Yao Jian
• Carlson Blair E
• Chen Xiaoling

Classifications

• H01M10/647

  Prismatic or flat cells, e.g. pouch cells · CPC title

• B60L58/26

  by cooling · CPC title

• H01M10/6556

  Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title