Integrated Seal Connector Assembly for Waterproof Miniaturization

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing small or miniaturized sealed electric connectors require multiple seals and parts for assembly, leading to a cumbersome process and low assembly efficiency, with room for improvement in waterproof performance.

Innovation Solution

A sealed electric connector design featuring an integral seal comprising a first and second seal part preassembled onto a second housing assembly, reducing the number of seals and parts, and incorporating a seal connection part to maintain seal position stability during assembly, ensuring better sealing and waterproof performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple seals and seal retainers are used to achieve sealing between multiple connected parts, then waterproof performance is achieved, but the assembly process becomes cumbersome and assembly efficiency is low

Engineering Contradiction:
Improvewaterproof performanceVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent combines multiple separate seals and seal retainers into a single integrated seal assembly. The first seal, second seal, and their corresponding retainers are merged into one pre-assembled unit that is installed as a single component, dramatically reducing the number of assembly steps while maintaining the waterproof sealing function between the first housing and second housing body.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The seal assembly is pre-assembled onto the second housing body before final assembly with the first housing. The first seal is already positioned on the second housing body, and the seal retainer is pre-installed to hold the second seal in place. This preliminary preparation eliminates the need for complex alignment and installation operations during final assembly, improving assembly efficiency.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If multiple seals and parts are used to achieve sealing, then waterproof performance is achieved, but the number of parts increases making assembly cumbersome

Engineering Contradiction:
Improvewaterproof performanceVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple discrete components (first seal, second seal, first seal retainer, second seal retainer) into a single integrated seal assembly that is pre-mounted on the second housing body. This reduction in part count simplifies inventory management, assembly operations, and quality control while preserving the multi-point sealing capability required for waterproof performance.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If separate seals are used for sealing between housings and terminals, then sealing function is achieved, but position adjustment is required during assembly reducing efficiency

Engineering Contradiction:
Improvesealing functionVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The first seal is pre-positioned on the second housing body, and the second seal is pre-positioned on the terminal assembly during the seal assembly manufacturing process. This preliminary positioning ensures correct alignment and eliminates the need for operators to perform time-consuming alignment and adjustment operations during final assembly, directly improving assembly efficiency while maintaining reliable sealing.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4607715A1Two-part form sealed connector
Publication Date: 2025.08.27 APTIV CONNECTION SYSTEMS (NANTONG) CO LTD
  • EP4607715A1 patent drawingFigure 1
  • EP4607715A1 patent drawingFigure 2~3
  • EP4607715A1 patent drawingFigure 4~5

AI summary

This application discloses a two-part form sealed connector, the sealed connector comprising: a first housing having a first containing cavity; a second housing assembly comprising a second housing body and an integral seal, the integral seal includes a first seal part and a second seal part, the first seal part is to provide sealing between the first housing and the second housing body, and the second housing body has a second containing cavity in communication with the first containing cavity, and the second seal part is arranged in the second containing cavity; and a terminal assembly to be arranged in the first containing cavity, and at least part of the terminal assembly is arranged in the second containing cavity, and the second seal part is to seal the terminal assembly and the second housing body.