Flexible Wiring Module for Potential-Ordered Voltage Detection
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Solution Overview
Problem
In wiring modules attached to power storage devices, the alignment of voltage detection lines with electrode terminals often differs from the order of potentials, leading to increased complexity and manufacturing costs when rearranging lines to match potential order.
Innovation Solution
A flexible wiring module with first and second voltage detection lines on one surface, connected via a connector, where ends of these lines are aligned in the order of potentials and folded to match terminal connections, reducing the need for additional components and simplifying the substrate's shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If voltage detection lines are connected to electrode terminals without considering potential order, then wiring complexity is reduced, but the alignment between detection lines and circuit terminals becomes mismatched
Solution Approach 1:
The patent utilizes the flexible substrate's ability to fold in three-dimensional space, transforming a two-dimensional wiring layout problem into a three-dimensional solution. By folding the substrate, detection lines can physically align with circuit terminals in the correct potential order while maintaining simple connections to power storage devices, resolving the contradiction between wiring simplicity and terminal alignment.
2Ease of operation
If jumper wires are used to rearrange voltage detection lines in potential order, then alignment with circuit terminals is improved, but the number of components and manufacturing cost increase
Solution Approach 1:
The patent merges the function of multiple separate jumper wires into a single flexible substrate. The substrate integrates multiple detection lines that can be folded into the correct configuration, eliminating the need for additional jumper wire components while achieving proper potential order alignment, thus reducing manufacturing cost and component count.
Solution Approach 2:
The flexible substrate provides a dynamic wiring solution that can be folded during assembly to achieve the correct potential order alignment. This dynamic configuration capability eliminates the need for static jumper wires, simplifying the manufacturing process and reducing costs while maintaining proper alignment with circuit terminals.
3Adaptability or versatility
If multiple rows of voltage detection lines are provided on separate substrates, then connectivity to two rows of electrode terminals is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple detection lines for two rows of electrode terminals onto a single flexible substrate. By folding the substrate appropriately, all necessary connections are achieved with one integrated component rather than multiple separate substrates, reducing device complexity while maintaining full connectivity to both rows of terminals.
Data Source
AI summary
A wiring module is attached to a plurality of power storage devices, electrode terminals of the plurality of power storage devices being arranged in two rows continuously in an aligning direction of the plurality of power storage devices, and the two rows of electrode terminals being separated from each other in a separation direction orthogonal to the aligning direction, the wiring module including: a single substrate that is flexible and has a plurality of first voltage detection lines and a plurality of second voltage detection lines on only one surface thereof, and a connector, the substrate includes: a first connection piece that includes ends on one side of the first voltage detection lines, a second connection piece that includes ends on one side of the second voltage detection lines, and a connector connection piece.