Waterproof Connector Opening with Split Lid and Covering Seal

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Solution Overview

Problem

The connector disclosed in Patent Literature 1 lacks waterproofing, allowing water to seep into the housing through the lower opening and reach the mounting board.

Innovation Solution

A connector design featuring a housing with openings closed by multiple lid bodies and covered with a covering material, where the terminal passes between these lid bodies and extends outside, ensuring the openings are sealed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the housing opening is left open to allow terminal insertion and access, then ease of assembly and operation is improved, but waterproofing property deteriorates

Engineering Contradiction:

Improveease of assemblyVSAvoidwaterproofing property

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The opening closure is divided into multiple lid bodies that can be assembled separately. Each lid body covers a portion of the opening, and they work together to provide complete coverage while maintaining assembly ease and waterproofing

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A covering material is introduced as an intermediary substance that fills the space between the lid bodies and the housing opening. This material provides waterproofing while allowing the lid bodies to maintain their structural function of covering the opening

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If multiple lid bodies are assembled to close the opening, then waterproofing property is improved, but device complexity increases

Engineering Contradiction:

Improvewaterproofing propertyVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple lid bodies are merged with the covering material to form an integrated waterproof assembly. The covering material bonds the lid bodies together and to the housing, creating a unified structure that provides waterproofing without requiring complex separate components

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The covering material acts as a flexible sealing layer that adapts to the opening geometry and provides waterproofing. This thin film approach simplifies the overall structure compared to rigid multi-component sealing mechanisms

Inventive Principle:

Principle #30Flexible shells and thin films

3Adaptability or versatility

If the terminal penetrates the covering material, then electrical connection function is maintained, but waterproofing property may deteriorate

Engineering Contradiction:

Improveelectrical connection functionVSAvoidwaterproofing property

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The covering material provides different properties in different locations: it remains continuous and waterproof in most areas, while creating localized openings or pathways for the terminal to pass through. This allows electrical connection function to be maintained at the terminal location while preserving waterproofing in the surrounding areas

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20260005465A1connector

Publication Date: 2026.01.01 YOKOWO CO LTD

AI summary

A connector includes: a housing having an opening; a terminal accommodated in the housing; a plurality of lid bodies configured to close the opening; and a covering material configured to cover, from an outside of the housing, the opening closed by the plurality of lid bodies. The terminal passes between the plurality of lid bodies, penetrates the covering material, and extends toward the outside of the housing.