Bus Bar Holding Structure With Local Shielding Walls
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Solution Overview
Problem
In the automotive industry, there is a need to reduce the weight and material cost of connection modules for power storage devices in electric and hybrid vehicles, as current designs are inefficient in material usage and contribute to increased costs.
Innovation Solution
A connection module design featuring holding units with shielding walls that only cover opposing edges of the connection members, reducing material usage and weight, and incorporating guide ribs and locking mechanisms for secure attachment, allowing for efficient assembly and minimal material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If connection members are surrounded on four sides by peripheral walls in holding units, then shielding effectiveness is improved, but weight and material cost increase
Solution Approach 1:
The patent applies local quality by providing shielding walls only at specific locations where interference occurs (opposing edges facing adjacent holding units) rather than surrounding all connection members with complete peripheral walls. This localized shielding approach maintains effectiveness where needed while reducing overall material usage and weight.
Solution Approach 2:
The patent extracts unnecessary shielding structures from the design. By removing peripheral walls from non-critical sides of connection members and retaining only essential shielding at opposing edges, the design eliminates excess material while preserving the core shielding function against electrical interference.
2Object-affected harmful factors
If connection members are surrounded on four sides by peripheral walls in holding units, then shielding effectiveness is improved, but material cost increases
Solution Approach 1:
The patent applies local quality by providing shielding walls only at specific locations where interference occurs (opposing edges facing adjacent holding units) rather than surrounding all connection members with complete peripheral walls. This localized shielding approach maintains effectiveness where needed while reducing overall material usage and weight.
Solution Approach 2:
The patent extracts unnecessary shielding structures from the design. By removing peripheral walls from non-critical sides of connection members and retaining only essential shielding at opposing edges, the design eliminates excess material while preserving the core shielding function against electrical interference.
3Quantity of substance
If shielding walls are provided along only one opposing edge of each connection member, then material usage is reduced, but shielding coverage decreases
Solution Approach 1:
The patent merges the shielding function across adjacent holding units. By providing shielding walls only at opposing edges, the design creates a shared shielding system where each holding unit's shielding wall protects its own connection member while also contributing to the overall shielding effectiveness of the assembly, eliminating redundant shielding structures.
Solution Approach 2:
The patent uses a standardized holding unit design that can be replicated and arranged in arrays. Each holding unit follows the same pattern of providing shielding at opposing edges only, allowing for consistent, economical manufacturing while achieving cumulative shielding effectiveness through the repeated pattern across multiple units.
Data Source
AI summary
A connection module includes multiple bus bars for connecting electrode terminals of adjacent power storage elements, and a holding member that holds the multiple bus bars. The holding member includes multiple holding units that respectively hold the multiple bus bars and are arranged side by side in one line, and the holding units include shielding walls. The shielding wall included on one first holding unit is provided in a standing manner along only the short side of the bus bar held in the first holding unit, the short side opposing another adjacent first holding unit or second holding unit.