Wire Harness Cover With Intermediate Hole And Cushion

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Solution Overview

Problem

Existing wire protection systems fail to effectively prevent damage to wires from foreign substances entering through holes in protective members, leading to potential short circuits and structural complexity.

Innovation Solution

A wire harness configuration featuring a cover with intermediate holes and impact-resistant members between the wires and the cover, which intercept and absorb foreign substances, thereby preventing direct contact and reducing the risk of short circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hole is provided in the protective member for drainage or other purposes, then the protective member can drain water or allow passage, but foreign substances can enter through the hole and damage the wire

Engineering Contradiction:

Improvedrainage functionVSAvoidforeign substance damage

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The cushion material is introduced as an intermediary element positioned between the hole and the wire. This cushion intercepts foreign substances that enter through the hole, preventing direct contact with the wire while allowing the hole to maintain its drainage or passage function. The cushion acts as a mediator that preserves the utility of the hole while protecting against its harmful effects.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If additional protective structures are added to prevent foreign substance damage, then wire protection is improved, but the structure becomes more complex

Engineering Contradiction:

Improvewire protectionVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The cushion material functions as a flexible protective element that can be easily installed within the protective member. Unlike rigid additional structures, the flexible cushion provides effective protection against foreign substances while maintaining a simple overall structure. The thin-film nature of the cushion allows it to fit within existing spaces without adding significant structural complexity.

Inventive Principle:

Principle #30Flexible shells and thin films

3Device complexity

If the wire is directly exposed to the hole in the cover, then the structure is simpler, but the wire is vulnerable to damage from foreign substances

Engineering Contradiction:

Improvestructure simplicityVSAvoidwire integrity

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The cushion material is positioned in advance between the hole and the wire to provide preemptive protection. This prior cushioning ensures that before any foreign substance can reach the wire through the hole, it is intercepted by the cushion. This approach maintains structural simplicity while significantly enhancing wire integrity through preventive protection.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11529912B2Wire harness

Publication Date: 2022.12.20 SUMITOMO WIRING SYSTEMS LTD

AI summary

A wire harness including: a wire; a cover that covers the wire; and a cushion provided between the wire and the cover, wherein: the cover is provided with a hole in an intermediate portion of the cover in an extension direction of the wire, and the cushion is provided between the hole and the wire in a first direction intersecting the extension direction.