Female Connector Guiding Structure for Wrong-Way Insertion Prevention

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Solution Overview

Problem

Existing connector assemblies suffer from incorrect insertion of male connectors, leading to voltage mismatches and equipment malfunctions due to directional requirements.

Innovation Solution

The female connector features guiding structures and foolproof designs, including T-shaped cross-sections and chamfer structures, to ensure correct insertion of male connectors into female connectors, preventing incorrect insertion and ensuring proper power or signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the male connector is designed to be inserted into the female connector without guiding structures, then the insertion operation is simple and quick, but incorrect insertion direction occurs leading to voltage mismatches and equipment malfunctions

Engineering Contradiction:

Improveinsertion direction accuracyVSAvoidconnector structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies asymmetry by designing the guiding structures with non-symmetric geometries including T-shaped cross-sections and chamfer structures. These asymmetric features create a directional insertion path that physically prevents incorrect insertion orientation, ensuring the male connector can only be inserted in the correct direction while maintaining structural simplicity

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The guiding structures perform preliminary action by pre-aligning the male connector with the correct insertion direction before the actual connection is made. The T-shaped cross-sections and chamfer structures guide the connector body into proper orientation during the insertion process, ensuring correct terminal alignment before electrical contact is established

Inventive Principle:

Principle #10Preliminary action

2Reliability

If guiding structures are added to prevent incorrect insertion, then insertion direction accuracy is improved, but the manufacturing process becomes more complex

Engineering Contradiction:

Improveinsertion direction accuracyVSAvoidconnector manufacturing ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The guiding structures are segmented into distinct functional elements including T-shaped cross-sections and chamfer structures that can be independently formed during molding. This segmentation allows each guiding feature to be optimized separately while maintaining overall manufacturing efficiency through integrated molding processes

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent utilizes parameter changes by varying the geometric parameters of the guiding structures, such as the dimensions of T-shaped cross-sections and chamfer angles, to achieve the desired guiding function. These parameter variations are incorporated into standard molding processes, maintaining ease of manufacture while ensuring reliable directional guidance

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250273897A1Connector Assembly and Female Connector Thereof

Publication Date: 2025.08.28 DONGGUAN TANGYU ELECTRONICS

AI summary

A connector assembly and female connector thereof, wherein the connector assembly comprises a male connector and a female connector, and the male connector is inserted into the female connector. The core of the female connector comprises an inserting guiding structure, which provides interference when the male connector is inserted in an incorrect inserting direction, thereby preventing the male connector from being incorrectly inserted into the female connector and ensuring that the male connector can be inserted into the female connector to provide power or signal transmission.