Battery Module Frame with Adhesive Injection Holes
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Solution Overview
Problem
The assembly of battery modules using pouch-shaped secondary batteries is inefficient due to lack of external metal, leading to poor heat dissipation, reduced rigidity, and increased complexity, while can-shaped batteries face challenges in heat dissipation and overall rigidity.
Innovation Solution
A frame with a peripheral wall and adhesive injection holes is used to enclose secondary batteries, with an adhesive that adheres batteries together and to the frame, enhancing rigidity and heat dissipation by providing a thermally conductive path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If pouch-shaped secondary batteries are used without external metal, then weight is reduced, but heat dissipation efficiency deteriorates
Solution Approach 1:
The frame and secondary batteries are merged into an integrated structure where the frame serves dual functions as both structural support and heat dissipation pathway. The adhesive layers create thermal conduction paths that merge the thermal management function with the structural assembly, eliminating the need for separate metal plates while maintaining heat dissipation efficiency.
2Device complexity
If pouch-shaped secondary batteries are assembled without metal plates, then device complexity is reduced, but assembling efficiency deteriorates
Solution Approach 1:
The adhesive is pre-applied to the frame before inserting the secondary batteries, creating ready-to-bond surfaces in advance. This preliminary preparation eliminates the need for complex alignment and bonding operations during final assembly, significantly improving assembling efficiency while maintaining structural simplicity.
3Temperature
If aluminum plates are used to fix pouch-shaped secondary batteries, then heat dissipation path is improved, but overall rigidity deteriorates
Solution Approach 1:
The frame structure combines multiple materials with complementary properties: the frame material provides structural rigidity, while the adhesive layers provide thermal conduction pathways. This composite approach integrates the heat dissipation function into the structural framework itself, eliminating the need for separate aluminum plates and achieving both rigidity and heat dissipation efficiency.
4Temperature
If small units are assembled from batteries and aluminum plates, then heat dissipation is improved, but assembling complexity increases
Solution Approach 1:
The frame and secondary batteries are merged into a single assembly operation rather than creating separate small units first. The adhesive layers create integrated thermal management pathways during the primary assembly process, eliminating the need for secondary assembly steps and reducing overall assembling complexity while maintaining heat dissipation efficiency.
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
This solution simplifies the assembly process, improves the overall rigidity and heat dissipation efficiency of the battery module, and enhances its anti-deformation capabilities under impact and vibration.
Implementation Method 1
an adhesive that adheres batteries together and to the frame
Implementation Method 2
providing a thermally conductive path
Data Source
AI summary
The present disclosure provides a frame and a battery module. The frame is composed of a peripheral wall, the peripheral wall encloses to form a receiving cavity closed in a circumferential direction and opened at two ends in an axial direction, the peripheral wall is provided with at least one adhesive injection hole passing through the peripheral wall. The battery module comprises a plurality of secondary batteries arranged side by side, the frame and an adhesive. The secondary batteries are received in the receiving cavity. The adhesive comprises: a first part which adheres every two adjacent secondary batteries; a second part which adheres two secondary batteries positioned at outermost sides of the plurality of secondary batteries in an arrangement direction with the peripheral wall; a third part which adheres a lower side of the first part and a lower side of the second part with the peripheral wall.