Bus Bar Module Wire Routing via Segmented Accommodation

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Solution Overview

Problem

The conventional electric wire routing structure for bus bar modules faces difficulties in handling electric wire bundles due to their large volume and the risk of short circuits from high temperature gas erosion, which complicates the extraction and routing of detection lines.

Innovation Solution

The proposed solution involves a bus bar module with a dual accommodation part system linked by a linkage part containing an electric wire routing part, allowing for flexible routing of electric wires between the parts, reducing the need for a single extraction point and minimizing the risk of short circuits by routing individual wires through the electric wire routing part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If all electric wires are collected in one extraction part, then the routing structure is simplified, but handling of the electric wire bundle becomes difficult and the volume increases

Engineering Contradiction:

Improverouting structure complexityVSAvoidhandling of electric wire bundle

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The patent divides the electric wire routing into multiple separate routing paths instead of collecting all wires in one extraction part. The detection lines are routed through different spaces (outer side part and middle part) with separate extraction points, segmenting the wire bundle handling into smaller, more manageable groups.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If detection lines are routed in the middle part of the bus bar module, then routing is simplified, but the risk of short circuit from high temperature gas erosion increases

Engineering Contradiction:

Improverouting structure complexityVSAvoidshort circuit risk of detection lines

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent applies different routing strategies to different detection lines based on their specific requirements. Detection lines are routed through either the outer side part or middle part depending on their function and exposure risk to high temperature gas, creating localized routing quality rather than a uniform approach.

Inventive Principle:

Principle #3Local quality

3Power

If the number of batteries in the battery aggregate is increased, then the power output is improved, but the number of detection lines and their volume increases

Engineering Contradiction:

Improvepower output of battery aggregateVSAvoidnumber of detection lines

Core Design Contradiction:

PowerVSQuantity of substance

Solution Approach 1:

The patent segments the detection lines into different routing groups based on their connection points and functions. By organizing detection lines into separate routing paths through the outer side part and middle part, the system manages the increased quantity of wires resulting from more batteries without proportionally increasing overall complexity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP2892089B1Electric wire routing structure for bus bar module

Publication Date: 2019.06.12 YAZAKI CORP

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AI summary

Provided are: a first-group accommodation part (21) and a second-group accommodation part (22) in each of which accommodation parts (2) each of which accommodates at least one of a bus bar (3), a terminal (4), and an electric wire (5) connected to the terminal (4) are arranged; a linkage part (8) linking the first-group accommodation part (21) and the second-group accommodation part (22) to each other; and an electric wire routing part (9) provided in the linkage part (8) and accommodating the electric wires (5).