Ribbon Cable Break Detection in Laminated Pane Assemblies
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Solution Overview
Problem
Ribbon cables used in laminated panes for electrical functional layers and electro-optical components are prone to damage and corrosion, making them sensitive during handling and lamination, and there is a need for a cost-effective and reliable method for breaking detection.
Innovation Solution
A ribbon cable design with a carrier film having electrical conductor tracks and an additional loop-shaped conductor track for ohmic resistance measurement, allowing for flexible electrical contacting and integrity checking before, during, and after lamination, and a connection assembly that integrates this ribbon cable with a laminated pane for reliable electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ribbon cables are used for electrical functional layers in laminated panes, then electrical connectivity is achieved, but the ribbon cables are prone to damage and corrosion during handling and lamination
Solution Approach 1:
The patent implements breaking detection functionality before the ribbon cable is laminated into the pane. The detection system is prepared in advance, allowing the integrity of the ribbon cable to be verified prior to final installation, thus preventing undetected damaged cables from being embedded in the laminated structure.
Solution Approach 2:
The patent introduces an intermediate detection system that acts as a mediator between the ribbon cable and the final lamination process. This detection mechanism provides a buffer that identifies potential failures before they become permanent defects in the completed assembly.
2Reliability
If breaking detection is implemented in ribbon cables, then reliability of electrical connection is improved, but device complexity increases
Solution Approach 1:
The patent combines the breaking detection functionality with the existing ribbon cable structure by integrating detection conductors into the same carrier film. This merging approach allows the detection system to be implemented without adding separate, complex external monitoring equipment.
Solution Approach 2:
The ribbon cable is designed to serve multiple functions simultaneously: it provides electrical connectivity for the functional layer and incorporates breaking detection capability. This multi-functionality reduces the need for separate systems and minimizes overall device complexity.
3Ease of manufacture
If thin flat conductors are embedded in thermoplastic adhesive layer, then electrical connection is achieved, but the conductors are sensitive to damage during handling
Solution Approach 1:
The patent performs breaking detection before the thin flat conductors are embedded in the thermoplastic adhesive layer. This preliminary check ensures that only intact conductors are installed, preventing the embedding of already-damaged components and allowing for early replacement of defective conductors.
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 solution provides a cost-effective and reliable means to detect breaks in the ribbon cable, ensuring the integrity of electrical connections within the laminated pane, enhancing the durability and reliability of the electrical connections while maintaining the structural and visual integrity of the pane.
Implementation Method 1
an additional conductor track which is designed to be loop-shaped, so that an ohmic resistance of the additional conductor track can be measured between its ends
Data Source
AI summary
A ribbon cable having an additional conductor track for breaking detection, includes a carrier film having at least one electrical conductor track, wherein the carrier film has a first connection region at a first end and a second connection region at a second end, wherein the first connection region can be arranged between the two panes of a laminated pane and the second connection region can be guided out of the laminated pane between the two panes, and wherein the electrical conductor tracks can electrically contact an electrical functional element in the first connection region, wherein the carrier film has an additional conductor track which is designed to be loop-shaped, so that an ohmic resistance between the two ends of the additional conductor track can be measured.