Electrical Connector Sealing Sheet Friction Reduction

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Solution Overview

Problem

Conventional connectors' waterproof rings experience wear and elastic fatigue due to frequent plugging and unplugging, leading to reduced waterproofing performance and shortened service life.

Innovation Solution

An electrical connector design featuring a sealing member with a sealing sheet that contacts the mating connector's connecting end surface and side cover, reducing friction during connection and disconnection, thus maintaining excellent waterproof performance and extending the service life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a waterproof ring is installed on the male connector to achieve waterproofing, then waterproofing performance is improved, but the dimensional accuracy and flatness requirements become more strict

Engineering Contradiction:

Improvewaterproofing performanceVSAvoiddimensional accuracy and flatness

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent inverts the conventional design by moving the waterproof sealing function from the male connector to the female connector. The sealing member is integrated into the female connector's cover, which eliminates the need for strict dimensional accuracy on the male connector while maintaining effective waterproofing through the sealing member's contact with the male connector's outer surface.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If the waterproof ring is pressed and interfered with during connection to achieve waterproofing, then sealing effect is improved, but the waterproof ring is prone to wear and elastic fatigue

Engineering Contradiction:

Improvesealing effectVSAvoidservice life of waterproof ring

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent reverses the conventional approach by placing the sealing member on the female connector instead of the male connector. This inversion allows the sealing member to be compressed between the male connector's outer surface and the female connector's inner surface, creating effective sealing without subjecting the sealing member to repeated friction and elastic fatigue from frequent plugging and unplugging operations.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts the sealing function from the male connector and relocates it to the female connector. The sealing member is integrated into the female connector's cover structure, separating the sealing function from the male connector's mating surface and allowing independent optimization of each component's design and material properties.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If frequent plugging and unplugging occurs to achieve connectivity, then ease of operation is improved, but the waterproof ring experiences wear and elastic fatigue

Engineering Contradiction:

ImproveconnectivityVSAvoidwaterproofing performance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent inverts the sealing arrangement so that the sealing member is positioned on the female connector rather than the male connector. This configuration allows the sealing member to be compressed during connection without being subjected to the friction and wear caused by frequent plugging and unplugging, thereby maintaining waterproofing performance while preserving ease of operation.

Inventive Principle:

Principle #13The other way round (Inversion)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The design effectively prevents moisture ingress and reduces wear on the sealing member, ensuring prolonged waterproof performance and increased service life by minimizing friction and elastic fatigue.

Implementation Method 1

the joint where a male connector connects with a female connector is provided with a waterproof ring to prevent external water and moisture from entering the connector through the gap between the male connector and the female connector

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Implementation Method 2

The sealing member is disposed between the first sleeve and the first cover... one side of the sealing sheet close to the first connecting end surface is in contact with the second connecting end surface of the second sleeve and a side surface of the second cover

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS11621516B2Electrical connector and connector assembly

Publication Date: 2023.04.04 LUXSHARE PRECISION IND SHENZHEN

AI summary

The present disclosure provides an electrical connector and a connector assembly. The electrical connector comprises a first sleeve, a first cover, and a sealing member. The first sleeve comprises a first mating opening and a first connecting end surface. The first connecting end surface is disposed at the periphery of the first mating opening. The first cover is disposed in the first sleeve. The first cover comprises a first mating surface exposed from the first mating opening. The sealing member is disposed on a side surface of the first cover and surrounds the first cover. The sealing member is disposed between the first sleeve and the first cover. The sealing member comprises a sealing sheet extending from the first mating surface in a direction close to the first connecting end surface of the first sleeve.