Waterproof Safety Socket Module With Locked Live Contact Switching

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Solution Overview

Problem

Existing sockets and power strips lack reliable waterproof, leakage-proof, and electric-shock-proof performance, particularly in wet environments, due to worn-out seals and ineffective waterproof covers, posing safety risks.

Innovation Solution

A safety socket module with a shell, upper cover, compartments, and lock control members that include waterproof electrical connection switches and lock control members to ensure safe insertion and withdrawal of pins, along with a gasket and insulating materials to prevent water ingress and electric shocks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rubber sealing materials are used to seal the jack, then waterproof performance is improved, but the sealing effect attenuates after repeated plugging and unplugging

Engineering Contradiction:
Improvewaterproof performanceVSAvoidservice life
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent extracts the sealing function from the rubber material and relocates it to the waterproof cover structure. The waterproof cover is designed to physically block water entry at the jack opening, eliminating dependence on rubber seals that wear out during plugging/unplugging operations.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of using flexible rubber seals that deform during operation, the patent employs a rigid waterproof cover that maintains its blocking function. The design inverts the approach by using structural geometry rather than elastic deformation to achieve sealing.

Inventive Principle:
Principle #13The other way round (Inversion)

2Object-affected harmful factors

If a waterproof cover is arranged on the socket, then splash prevention is improved, but the cover is lifted and loses protective effect when a plug is inserted

Engineering Contradiction:
Improvesplash preventionVSAvoidplug insertion
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent segments the protective function into two parts: the waterproof cover that remains fixed on the socket body, and the plug structure that has its own integrated waterproof sealing elements. This allows the cover to stay in place during plug insertion while still providing splash protection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a waterproof seal ring or gasket as an intermediary element between the plug and the socket opening. This mediator maintains the waterproof barrier even when the plug is inserted, allowing both splash prevention and ease of operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a waterproof sealing gasket is arranged on the socket, then protective effect in low pressure water is improved, but the effect becomes ineffective in deep water or high pressure environments

Engineering Contradiction:
Improveprotective effectVSAvoidenvironmental adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent employs a composite protective system combining a rigid waterproof cover made from high-strength, pressure-resistant material with integrated sealing elements. This composite structure maintains effectiveness under both low and high pressure conditions, enhancing environmental adaptability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The waterproof cover is designed with curved or domed geometry that distributes water pressure evenly across its surface. This spherical-like shape prevents deformation under high pressure, maintaining sealing effectiveness in deep water or high-pressure environments.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 solution provides effective waterproof and electric-shock-proof performance, preventing short circuits and electric shocks in various environments, including water immersion, by ensuring safe plug insertion and withdrawal.

Implementation Method 1

lock control members, respectively arranged in the compartments and aligned with the jacks, and configured to clamp pins of the plug of the electric appliance and bias the waterproof electrical connection switches when the pins are inserted into the jacks

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a contact surface of the isolated waterproof chamber that is biased by a respective lock control member of the lock control members is elastically deformable

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

The movable contact piece is configured to contact with the static contact piece to switch on each of the waterproof electrical connection switches through biasing of the respective lock control member when the pins are inserted into the jacks

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 4

along with a gasket and insulating materials to prevent water ingress and electric shocks

Methodology Applied
Scientific EffectPhysical Containment: Physical Containment

Implementation Method 5

waterproof electrical connection switches, arranged in the compartments and configured to asynchronously control connection and disconnection of a circuit between a power supply and a plug of an electric appliance

Methodology Applied
Scientific EffectElectrical Resistance: Electrical Resistance

Data Source

PatentUS20260039067A1Safety Socket Module, and Power Strip and Mobile Cable Reel Comprising Same
Publication Date: 2026.02.05 DALIAN SAFE TECH CO LTD
  • US20260039067A1 patent drawing
  • US20260039067A1 patent drawing
  • US20260039067A1 patent drawing

AI summary

A safety socket module includes a shell; an upper cover, configured to cover the shell, where jacks are provided on the upper cover; compartments, each being arranged in the shell and below a respective jack of the jacks and having an interior accessible from an exterior of the shell through the respective jack; waterproof electrical connection switches, arranged in the compartments and configured to asynchronously control connection and disconnection of a circuit between a power supply and a plug of an electric appliance; and lock control members, respectively arranged in the compartments and aligned with the jacks. Each of the waterproof electrical connection switches includes a waterproof capsule, and a movable contact piece and a static contact piece arranged opposite to each other in the waterproof capsule.