Conductive Paper with Embedded Threads for Reliable Contacting

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Solution Overview

Problem

Existing electroconductive paper structures face challenges with contacting due to the use of poorly conductive adhesive layers, which are prone to detachment under mechanical stress, and the difficulty in implementing crimp contacts.

Innovation Solution

Incorporating continuous, electroconductive threads within the electroconductive paper structure to facilitate improved contacting, allowing for easy connection at the ends of the threads and providing local current supply across the paper structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If adhesive contacts are used to contact the electroconductive paper structure, then the paper structure can be easily contacted, but the adhesive layers are poorly conductive and susceptible to detachment under mechanical stress

Engineering Contradiction:

Improveease of contactingVSAvoidmechanical stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent merges the contact element with the paper structure by embedding conductive threads directly into the paper substrate during manufacturing. This integration eliminates the need for separate adhesive contacts, combining the structural and conductive functions into a single unified component that maintains mechanical stability while providing reliable electrical contact.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The conductive threads are embedded into the paper structure during the manufacturing process before the product is put into service. This preliminary integration ensures that the contact elements are permanently fixed within the paper matrix, preventing detachment under mechanical stress while maintaining ease of electrical connection at the exposed ends.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If adhesive contacts are used, then contacting is simplified, but crimp contacts cannot be properly implemented

Engineering Contradiction:

Improveease of contactingVSAvoidcontacting method flexibility

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The embedded conductive threads serve multiple functions: they provide electrical conductivity, mechanical reinforcement, and versatile contacting options. The exposed ends of the threads can accommodate various contact methods including crimp contacts, soldering, or mechanical connectors, making the paper structure adaptable to different application requirements while maintaining ease of operation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If continuous electroconductive threads are embedded in the paper structure, then contacting reliability is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvecontacting reliabilityVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

4Reliability

If conductive threads are completely embedded in the paper structure, then mechanical stability is enhanced, but accessibility for electrical contact is reduced

Engineering Contradiction:

Improvemechanical stabilityVSAvoidelectrical contact accessibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The paper structure exhibits different properties in different regions: the bulk of the paper provides mechanical stability with completely embedded threads, while localized areas feature exposed thread ends that provide electrical accessibility. This spatial differentiation of functionality allows the same structure to simultaneously achieve both mechanical reinforcement and electrical contact capability.

Inventive Principle:

Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The embedded electroconductive threads enhance the robustness and long-term stability of the paper structure, enabling reliable electrical contact and efficient current distribution.

Implementation Method 1

the electroconductive paper structure has embedded therein a continuous, electroconductive thread for contacting the electroconductive paper structure from one end to the opposite end of the paper structure

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12331464B2Electrically conductive paper structure, method for manufacturing same and use

Publication Date: 2025.06.17 GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

AI summary

Electroconductive paper structure with cellulosic fibrous materials and electroconductive fibers, wherein the electroconductive paper structure has embedded therein a continuous, electroconductive thread for contacting the electroconductive paper structure from one end to the opposite end of the paper structure.