Vehicle Window Glass Assembly Relay Layout for Watertight Wiring

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Solution Overview

Problem

The integration of electrical components within a glass assembly with a resin frame for vehicle windows often compromises watertightness, leading to moisture ingress and water leakage due to the placement of electrical connections within the adhesive applying area.

Innovation Solution

The glass assembly is configured with distinct adhesive sections and an electrical connection system where the electrical component is positioned in one section and the connection member in another, with a relay portion interposed between the adhesive and outer surface, ensuring electrical connectivity while maintaining watertightness through strategic sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the electrical connection portion is disposed in the adhesive applying area to connect electrical components, then electrical connectivity is achieved, but the watertightness in the adhesive applying area reduces causing moisture ingress and water leakage

Engineering Contradiction:
Improveelectrical connectivityVSAvoidwatertightness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent divides the adhesive applying area into multiple sections: a first adhesive applying area for the electrical component, a second adhesive applying area for the electrical connection member, and a third adhesive applying area connecting them. This segmentation allows each area to be optimized for its specific function while maintaining overall watertightness through separate sealing zones.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a resin frame as an intermediary structure that integrates multiple adhesive applying areas and provides a sealing function. The resin frame acts as a mediator between the electrical components and the external environment, maintaining watertightness while accommodating electrical connections through its multi-section adhesive applying areas.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the electrical component and electrical connection member are disposed in the same adhesive applying area, then device complexity is reduced, but the watertightness deteriorates due to compromised sealing

Engineering Contradiction:
Improvestructural simplicityVSAvoidwatertightness
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the adhesive applying area into distinct first, second, and third areas with different functions. The first area bonds the electrical component to the glass, the second area bonds the electrical connection member, and the third area provides sealing between them. This segmentation maintains structural organization while ensuring watertightness through dedicated sealing zones.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The resin frame serves multiple functions simultaneously: it provides structural support, integrates multiple adhesive applying areas for different components, and maintains watertightness through its sealing design. This multi-functionality reduces the need for separate components while preserving sealing integrity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12023902B2Glass assembly with resin frame for vehicle window
Publication Date: 2024.07.02 AGC INC
  • US12023902B2 patent drawing
  • US12023902B2 patent drawing
  • US12023902B2 patent drawing

AI summary

A glass assembly with a resin frame for a vehicle window includes a glass plate; and a resin frame disposed on a peripheral edge area of the glass plate, wherein an electrical component disposed in a second section and an electrical connection member disposed in a first section are electrically connected together via a through hole as a relay portion interposed between a surface and an inner side surface with an adhesive applied thereto, and wherein the through hole is sealed with a sealing member.