Integrated Metal Battery Cooling and End Member Fixing Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery devices for electric and hybrid vehicles have a high parts count and manufacturing cost due to separate components for temperature regulation and expansion restraint, which can lead to performance instability and increased costs.
Innovation Solution
A battery device with a single piece structure made of metal that integrates temperature adjusting and end member fixing parts, featuring a heat exchange component and fluid flow passages to regulate temperature and restrain battery cell expansion, reducing the number of parts and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cooling devices and end member fixing members are used, then temperature regulation and expansion restraint functions are achieved, but the parts count increases and manufacturing cost rises
Solution Approach 1:
The patent combines the cooling device and end member fixing member into a single integrated component. The fixing member includes both the expansion restraint structure and integrated cooling channels, eliminating the need for separate cooling devices and reducing the overall parts count while maintaining both temperature regulation and expansion restraint functions
Solution Approach 2:
The end member fixing member is designed to perform multiple functions simultaneously: it restrains battery cell expansion, provides structural support, and serves as a cooling channel through which coolant flows. This multi-functional design reduces the number of components needed in the battery pack assembly
2Reliability
If separate cooling devices and end member fixing members are used, then temperature regulation and expansion restraint functions are achieved, but manufacturing cost increases
Solution Approach 1:
The patent combines the cooling device and end member fixing member into a single integrated component. The fixing member includes both the expansion restraint structure and integrated cooling channels, eliminating the need for separate cooling devices and reducing the overall parts count while maintaining both temperature regulation and expansion restraint functions
Solution Approach 2:
The end member fixing member is designed to perform multiple functions simultaneously: it restrains battery cell expansion, provides structural support, and serves as a cooling channel through which coolant flows. This multi-functional design reduces the number of components needed in the battery pack assembly
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated structure effectively regulates battery stack temperature and prevents expansion, reducing the overall parts count and manufacturing costs while maintaining mechanical strength and efficient cooling performance.
Implementation Method 1
a heat exchange part (30A1a, 30B1a) for exchanging heat with the battery stack
Implementation Method 2
a flowing passage (39j, 39h, 39i) (in its inside) in which a fluid for exchanging heat with the heat exchange part is flowing
Data Source
AI summary
A battery device includes: a battery stack including a plurality of battery cells arranged along a predetermined straight direction; a pair of end members that are spaced apart from each other in the straight direction and sandwich the battery stack to prevent battery cells from moving; a temperature adjusting part which includes a heat exchange part for exchanging heat with the battery stack and a flowing passage in which a fluid for exchanging heat with the heat exchange part is flowing; and an end member fixing part to which the end members are fixed. The temperature adjusting part and the end member fixing part are integrally united into a single piece structure made of metal.