Battery Wiring Module Partition Wall Design
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Solution Overview
Problem
In battery wiring modules, overlapping electric wires with module-side terminals can lead to damage, and existing designs fail to adequately prevent this damage and spatter during bus bar connection processes.
Innovation Solution
A battery wiring module design featuring a housing with a partition wall that separates module-side terminals from electric wires, including a closed wall portion to prevent spatter and an insulating partition wall to reduce conduction and rattling, thereby minimizing wire damage and increasing part efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electric wires are arranged to overlap on module-side terminals for layout compactness, then housing miniaturization is achieved, but module-side terminals may damage electric wires
Solution Approach 1:
The housing is segmented into multiple functional regions using partition walls. The terminal accommodating portion is divided into a first region for module-side terminals and a second region for electric wire connection, with partition walls separating these regions. This segmentation allows compact arrangement while preventing damage by isolating the terminals from the electric wires.
Solution Approach 2:
Partition walls serve as intermediary structures between the module-side terminals and electric wires. These partition walls physically separate the two components, allowing them to be in close proximity for compact design while preventing direct contact that would cause damage. The intermediary structure resolves the contradiction by enabling both compactness and protection.
2Reliability
If module-side terminal and electric wire are separated by partition wall, then electric wire damage is reduced, but housing structure becomes more complex
Solution Approach 1:
Multiple partition walls are merged into an integrated housing structure. The partition walls are configured to extend from the housing bottom surface and are integrated with the housing body, combining multiple protective functions into a unified structure. This merging approach provides effective separation and protection while minimizing the increase in structural complexity.
3Object-affected harmful factors
If closed wall portion is added to prevent spatter, then spatter protection is improved, but number of parts increases
Solution Approach 1:
The closed wall portion is merged with the partition walls to form an integrated spatter protection structure. The partition walls extend upward to form closed walls that prevent spatter from reaching the electric wire connection region. By merging the spatter protection function into the existing partition wall structure, effective protection is achieved without significantly increasing the number of separate parts.
Data Source
AI summary
Provided is a battery wiring module that can reduce damage of electric wires. The battery wiring module has: a module-side terminal electrically connected to a bus bar connecting battery terminals of a plurality of battery cells; an electric wire with one end side to which the module-side terminal is connected; and a housing for accommodating the electric wire and the module-side terminal. The housing has a terminal accommodating portion for accommodating the module-side terminal. The battery wiring module includes a partition wall portion that is provided such that the module-side terminal disposed on the bottom portion of the terminal accommodating portion is located between the partition wall portion and the bottom portion, and separates the module-side terminal and the electric wire.