Battery Management Housing Between Cells for Serviceable BMS
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Solution Overview
Problem
Existing battery systems for electric vehicles face challenges in accessible maintenance and repair, particularly with battery management systems (BMS) that are difficult to service due to their integration within the battery pack, leading to burdensome replacement procedures and increased risk of thermal runaway.
Innovation Solution
A battery module design featuring a removable housing section with a battery management arrangement that includes a BMM housed between battery cells, a bracket for retaining the BMM, and an electronics arrangement for electrical connectivity, allowing for efficient disassembly and assembly, and providing thermal and mechanical protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery management arrangement is integrated within the battery pack housing, then the system structure is compact and protected, but the maintenance and repair accessibility deteriorates
Solution Approach 1:
The battery management arrangement is segmented from the main battery pack structure by providing it with a separate removable housing. This allows the BMM to be accessed, removed, or replaced independently without disassembling the entire battery pack, thus maintaining system protection while improving maintenance accessibility.
Solution Approach 2:
The battery management arrangement is extracted from the integrated battery pack structure and provided with its own removable housing. This extraction enables independent access to the BMM for maintenance purposes while the remainder of the battery pack remains intact and protected.
2Volume of moving object
If the battery management housing is positioned between battery cells, then space utilization is optimized, but the risk of thermal damage increases
Solution Approach 1:
A bracket is introduced as an intermediary component between the battery management housing and the battery cells. This bracket provides mechanical retention while creating thermal isolation, allowing the BMM to be positioned in the available space between cells without direct thermal exposure.
Solution Approach 2:
The battery management housing is nested within the battery pack structure in the available space between battery cells, but is thermally isolated through the bracket mounting system. This nested arrangement optimizes space utilization while the bracket provides thermal protection.
3Stability of the object's composition
If the entire battery system must be disassembled for BMS servicing, then system integrity is maintained, but the maintenance time and complexity increase
Solution Approach 1:
The removable housing design segments the battery management arrangement from the main battery pack, enabling independent access to the BMM. This segmentation allows servicing of the BMS without disassembling the entire battery system, reducing maintenance time while maintaining system integrity through proper reassembly procedures.
Solution Approach 2:
The removable housing is designed to be easily removed and reinstalled, preparing the BMM for quick access and servicing. This preliminary design consideration enables rapid maintenance operations without requiring complex disassembly of the entire battery pack.
Data Source
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AI summary
The present disclosure refers to a battery module (12), comprising: a housing (13) comprising a removable housing section (14), a plurality of battery cells (20) accommodated within the housing (13), and a battery management arrangement (21); wherein the battery management arrangement (21) comprises a battery management module, BMM (22), a battery management housing (23) provided within the housing (13) of the battery module (12) and provided between at least two of the plurality of battery cells (20), an electronics arrangement (27), and a bracket (24) arranged within the battery management housing (23) and adapted to retain the BMM (22).