Battery Module End Plate With Integrated Lug for Simpler Pack Assembly
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Solution Overview
Problem
Conventional battery module designs require a large number of components and complex connecting procedures between end plates and the casing, leading to increased production costs and potential failure due to excessive stress and deformation during use.
Innovation Solution
A battery pack design that integrates a lug on the end plate, which is formed in conjunction with the main body and protrudes outward to be fixedly connected to a support beam within the casing, reducing the number of components and steps in the assembly process, and enhancing structural integrity by distributing force more evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connecting beam independent from end plates is used to fix end plates to casing, then the connection between end plates and casing is achieved, but the number of components increases and production cost increases
Solution Approach 1:
The patent merges the connecting beam function into the end plate structure itself. The end plate includes an extending portion that protrudes from the main body along the length direction, eliminating the need for a separate connecting beam. This integration reduces the number of components while maintaining the connection function between the battery module and casing.
2Reliability
If a connecting beam independent from end plates is used to fix end plates to casing, then the connection between end plates and casing is achieved, but the number of connecting procedures increases and production cost increases
Solution Approach 1:
The patent merges the connecting beam function into the end plate structure itself. The end plate includes an extending portion that protrudes from the main body along the length direction, eliminating the need for a separate connecting beam. This integration reduces the number of components while maintaining the connection function between the battery module and casing.
3Reliability
If conventional battery module design with multiple components is used, then the connection between end plates and casing is achieved, but the structural integrity is reduced due to stress concentration
Solution Approach 1:
The patent merges the connecting beam function into the end plate structure itself. The end plate includes an extending portion that protrudes from the main body along the length direction, eliminating the need for a separate connecting beam. This integration reduces the number of components while maintaining the connection function between the battery module and casing.
Solution Approach 2:
The end plate structure is segmented into a main body portion and an extending portion. The main body portion provides the primary structural support while the extending portion specifically engages with the casing. This segmentation allows for optimized stress distribution and improved structural integrity.
Data Source
AI summary
The present disclosure provides a battery pack including a casing and a battery module housed in the casing. The battery module can include a plurality of batteries arranged along a length direction and an end plate located at an end of the plurality of batteries in the length direction. The end plate can include a main body portion and a lug integrally formed with the main body portion, wherein the lug protrudes outwardly from the main body portion along the length direction and is fixedly connected to the casing. The design disclosed herein reduces the number of the components that are fixedly connected between the end plate and the casing, the number of steps in the operating procedure, and the production cost.