Battery Connection Module Single Layer Flexible Circuit Board Cross-Wiring

Solution Overview

Problem

Existing battery connection modules face challenges with circuit cross-wiring using single layer flexible circuit boards, leading to high costs due to the necessity of double layer or more flexible circuit boards, which are expensive and burdensome.

Innovation Solution

A battery connection module comprising a single layer wiring flexible circuit board, a connector, and a strengthening back board, where the strengthening back board acts as an adapting circuit board to facilitate circuit cross-wiring, reducing the need for multiple layers and lowering costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single layer flexible circuit board is used, then manufacturing cost is reduced, but circuit cross-wiring capability is lost

Engineering Contradiction:

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent introduces a strengthening back board with adapting traces that provides an additional dimensional path for circuit routing. When circuits need to cross on the single layer flexible circuit board, they can route through the adapting traces on the strengthening back board instead, effectively adding a second routing dimension without requiring a multi-layer flexible circuit board structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The strengthening back board acts as an intermediary between the flexible circuit board and the connector. It receives circuits from the flexible circuit board, provides adapting traces for cross-wiring, and then connects to the connector, thereby enabling circuit cross functionality that would otherwise require a more complex multi-layer flexible circuit board.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If double layer or more flexible circuit board is used, then circuit cross-wiring is enabled, but manufacturing cost increases significantly

Engineering Contradiction:

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent segments the circuit board system into two separate components: a single layer flexible circuit board for basic wiring and a strengthening back board for providing adapting traces. This segmentation allows each component to be optimized independently, with the flexible circuit board remaining simple and low-cost while the strengthening back board provides the necessary cross-wiring capability through its adapting traces.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent merges the single layer flexible circuit board with the strengthening back board to create a composite circuit board system. The flexible circuit board provides flexibility and basic wiring, while the strengthening back board adds cross-wiring capability through adapting traces, achieving the functionality of a multi-layer board at lower cost.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of manufacture

If binding wire is used for cross wiring on flexible circuit board, then circuit connection is achieved, but reliability deteriorates due to deflection and damage

Engineering Contradiction:

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces the mechanical binding wire system with a trace-based electrical connection system. Instead of using physical binding wires that are prone to damage from deflection, the circuit connections are achieved through printed traces on the strengthening back board, which are inherently more reliable and resistant to mechanical stress from flexible circuit board deflection.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20230163425A1Battery connection module

Publication Date: 2023.05.25

AI summary

A battery connection module is used to connect a plurality of batteries, includes a plurality of busbars, a connector, a single layer wiring flexible circuit board and a strengthening back board. The plurality of busbars are used to connect the plurality of batteries, the connector includes a plurality of conductive terminals, the single layer wiring flexible circuit board includes a plurality of terminal connecting points which are used to connect the plurality of conductive terminals and multiple traces which are connected with respective terminal connecting points, the strengthening back board corresponds to the connector in position and is provided on the single layer wiring flexible circuit board; the strengthening back board is provided with an adapting trace thereon; the multiple traces include at least one first trace; the first trace is adapted to the adapting trace on the strengthening back board, and then is adapted back to one of the plurality of terminal connecting points of the single layer wiring flexible circuit board via the adapting trace.