Wiring Module Interlocking Coupling Units
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Solution Overview
Problem
Conventional wiring modules for battery groups face challenges in reducing size due to the need for space to accommodate fitting pieces and recesses, making it difficult to miniaturize both the coupling units and the overall module.
Innovation Solution
The wiring module employs a locking mechanism where the locking portion and locked portion intersect the coupling direction, eliminating the need for extending fitting pieces and recesses, allowing for smaller coupling units and a reduced module size, with additional features like routing grooves and covers to secure wires and prevent disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fitting pieces and fitting recesses are provided to couple multiple coupling units, then the coupling units can be connected together, but the size of the coupling units and wiring module cannot be reduced due to the space required for these fitting structures
Solution Approach 1:
The locking portion extends in a direction intersecting the coupling direction (perpendicular dimension), allowing the coupling mechanism to function without requiring space in the coupling direction. This dimensional change enables the locking structure to engage from the side rather than requiring end-to-end fitting space.
Solution Approach 2:
Instead of providing fitting pieces that extend from one coupling unit to another (conventional approach), the invention provides a locking portion that engages with a locked portion on the adjacent coupling unit. This inverted approach eliminates the need for extending fitting structures while maintaining reliable coupling.
2Ease of manufacture
If fitting pieces extend along the coupling direction to connect coupling units, then the coupling units can be assembled, but the overall wiring module size increases due to the required space for these extending fitting portions
Solution Approach 1:
The locking portion is configured to extend in a direction intersecting the coupling direction, enabling the coupling mechanism to operate in a perpendicular dimension rather than along the coupling direction. This reduces the length required for the wiring module while maintaining assembly capability.
Solution Approach 2:
The invention extracts the fitting function from the coupling direction and relocates it to an intersecting direction. This separation allows the coupling units to connect without requiring extended space in the original coupling direction, thereby reducing the overall module length.
Data Source
AI summary
Provided is a wiring module to be attached to a power storage element group having a plurality of power storage elements, the wiring module including: bus bars; a plurality of coupling units for holding the bus bars; and a coupling portion for coupling the plurality of coupling units. The coupling portion includes: a locking portion arranged on an end portion of one coupling unit of the plurality of coupling units; and a locked portion that is arranged on another coupling unit adjacent to the one coupling unit and onto which the locking portion of the one coupling unit is to be locked. The locking portion extends in a direction intersecting a coupling direction in which the plurality of coupling units are coupled.