Hidden Outer Weatherstrip Assembly With Bracketed Door Mounting

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Solution Overview

Problem

Frameless vehicle doors lack a mounting structure for the outer weatherstrip assembly, leading to debonding issues and gaps that allow moisture and dust entry, compromising the sealing effectiveness and stability of the weatherstrip.

Innovation Solution

A hidden outer weatherstrip assembly with a weatherstrip joint corner featuring a slot for insertion into a mounting bracket fixed to the vehicle door inner panel, ensuring stable connection and integration with the door inner panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the outer weatherstrip assembly is bonded to the vehicle door inner panel with tape, then the mounting structure is simple, but the mounting stability decreases and gaps form between the weatherstrip and door panel

Engineering Contradiction:
Improvemounting structure complexityVSAvoidmounting stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

A mounting bracket is introduced as an intermediary component between the outer weatherstrip assembly and the vehicle door inner panel. The mounting bracket includes a clamping portion that engages with the weatherstrip joint corner and a mounting portion that is fixed to the door inner panel, providing stable mechanical connection and eliminating gaps while maintaining reasonable structural complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mounting system is divided into separate functional components: the mounting bracket with distinct clamping portion and mounting portion, and the weatherstrip joint corner with integrated slot. This segmentation allows each component to perform its specific function optimally while working together to solve the stability issue

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If the outer weatherstrip assembly is bonded with tape, then the installation process is simple, but moisture and dust can enter through gaps causing reliability to deteriorate

Engineering Contradiction:
Improveinstallation simplicityVSAvoidmoisture and dust ingress
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The mounting bracket serves as a mediator that creates a secure mechanical interface between the weatherstrip assembly and door panel, eliminating gaps that would otherwise allow moisture and dust ingress, while maintaining ease of installation through the designed engagement mechanism

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The weak mechanical bond of tape bonding is replaced with a robust mechanical interlocking system consisting of the mounting bracket and weatherstrip joint corner engagement, providing reliable protection against environmental factors

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a mounting bracket with clamping structure is used, then mounting stability is improved, but the device complexity increases

Engineering Contradiction:
Improvemounting stabilityVSAvoidmounting structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The slot for receiving the clamping portion is integrated directly into the weatherstrip joint corner structure, merging the mounting interface into the existing weatherstrip assembly design. This reduces overall device complexity by eliminating separate mounting interfaces while maintaining improved mounting stability through the bracket mechanism

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250313070A1Hidden outer weatherstrip assembly, vehicle door structure, and vehicle
Publication Date: 2025.10.09 ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
  • US20250313070A1 patent drawing
  • US20250313070A1 patent drawing
  • US20250313070A1 patent drawing

AI summary

The present disclosure provides a hidden outer weatherstrip assembly, a vehicle door structure, and a vehicle. The hidden outer weatherstrip assembly includes a weatherstrip joint corner, which forms an end of the outer weatherstrip assembly and is provided with a slot. The slot is configured to be in an inserting connection with a mounting bracket fixed to a vehicle door inner panel.