Wiring Module Routing Space and Coupling Reliability
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Solution Overview
Problem
The existing wiring module configuration for batteries arranged side-by-side lacks sufficient routing space for detection electric wires due to the space required for fitting pieces and recessed portions, which are positioned differently from the electric wire routing grooves.
Innovation Solution
A wiring module design where coupling units have engagement and receiving portions on the routing portions, allowing for secure coupling and maintaining the routing space, with optional groove shapes and overlapping features to minimize height increase, and additional locking mechanisms for enhanced coupling reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If engagement portion and engagement receiving portion are provided at positions different from the routing portion, then coupling reliability is improved, but routing space for electric wires becomes insufficient
Solution Approach 1:
The patent combines the engagement portion and engagement receiving portion with the routing portion by providing them at the same position. Specifically, the engagement portion is provided on the bottom wall of the routing portion, and the engagement receiving portion is provided on the bottom wall of the adjacent routing portion, allowing coupling units to be securely coupled while maintaining sufficient routing space for electric wires.
2Strength
If coupling units are coupled using fitting piece and fitting recessed portion, then coupling strength is improved, but vertical height of the module increases
Solution Approach 1:
The patent transitions the coupling mechanism from a vertical arrangement (fitting piece extending vertically) to a horizontal arrangement within the bottom wall plane. The engagement portion and engagement receiving portion are provided on the bottom walls of adjacent routing portions, allowing coupling units to be coupled horizontally without increasing the vertical height of the module.
3Manufacturing precision
If fitting piece extends along coupling direction, then coupling alignment is improved, but routing space for electric wires is reduced
Solution Approach 1:
The patent merges the coupling function with the routing structure by providing the engagement portion on the bottom wall of the routing portion. This integration allows the coupling mechanism to utilize the same space as the routing portion, maintaining sufficient routing space for electric wires while achieving accurate coupling alignment through the engagement portion and engagement receiving portion.
Data Source
AI summary
Provided is a wiring module configured to be attached to a plurality of power storage elements that are arranged side-by-side, the wiring module including a plurality of electric wires, and a plurality of coupling units in which the plurality of electric wires are routed. A left coupling unit of the plurality of coupling units has a left routing portion in which at least one of the plurality of electric wires is routed, and a center coupling unit adjacent to the left coupling unit of the plurality of coupling units has a center routing portion in which at least one of the plurality of electric wires is routed. The left routing portion is provided with a left engagement portion, and the center routing portion is provided with a center engagement receiving portion that engages with the left engagement portion.