Liquid-Cooled Battery Module Structure Without Pack Cross Beams
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery modules with serpentine tubes have complex structures due to cross beams, which complicate the pack box design, increase costs, and reduce space utilization.
Innovation Solution
A battery module design featuring a liquid cooling structure with upper and lower case plates and a support member, where battery cells are directly integrated onto grooved cooling surfaces, simplifying assembly and enhancing structural strength without additional cross beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cross beams are arranged inside the pack box to enhance structural strength, then the structural strength of the pack box is improved, but the internal structure becomes more complex and manufacturing costs increase
Solution Approach 1:
The liquid cooling structure is merged with the support function by integrating support members directly into the cooling plate design. The cooling plate serves dual purposes: thermal management and structural support, eliminating the need for separate cross beams and reducing overall system complexity
Solution Approach 2:
The liquid cooling structure is designed to perform multiple functions simultaneously: heat dissipation from battery cells and structural support for the pack box. This multi-functional design replaces the need for dedicated support components, simplifying the internal structure while maintaining strength
2Strength
If cross beams are arranged inside the pack box to enhance structural strength, then the structural strength of the pack box is improved, but the space utilization of the pack box is reduced
Solution Approach 1:
The support function is merged into the liquid cooling structure, allowing the cooling plate to occupy space that would otherwise be used for separate support beams. This integration maximizes space utilization while maintaining structural integrity
Solution Approach 2:
The liquid cooling structure serves as both thermal management component and structural support element, eliminating the need for additional space-consuming cross beams and improving overall space utilization in the pack box
3Temperature
If serpentine tube liquid cooling plate is used to dissipate heat, then heat dissipation is achieved, but the structure of the battery module becomes complex
Solution Approach 1:
The support members are integrated directly into the liquid cooling plate structure, combining the cooling function with the support function. This merging simplifies the overall battery module structure by eliminating separate support components while maintaining effective heat dissipation
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 design simplifies assembly, improves space utilization, reduces costs, and enhances structural strength, facilitating compact and efficient battery module integration into packs.
Implementation Method 1
The cooling surfaces are provided with grooves. The grooves are adapted to the circumferential side surfaces of the battery cells. The battery cells are arranged in the accommodation spaces, and the circumferential side surfaces of the battery cells are fitted to the grooves
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Provided are a battery module and a battery pack. The battery pack includes a battery module. The battery module includes a liquid cooling structure and multiple battery cells. The liquid cooling structure includes an upper case plate, a lower case plate, and a support member. The upper case plate and the lower case plate are oppositely arranged to form accommodation spaces, a surface of the upper case plate and a surface of the lower case plate facing each other are cooling surfaces, the cooling surfaces are provided with grooves, and the grooves are adapted to the circumferential side surfaces of the battery cells. The support member extends along the upper case plate and is perpendicularly connected between the upper case plate and the lower case plate.