Non-Metallic Contactless Wall Outlet Using Inductive Power Transfer

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Solution Overview

Problem

Conventional electrical wall outlets with metallic contacts pose safety hazards, are prone to shorts, and cluttered with wireless communication hardware, which also exposes users to cyber-attacks.

Innovation Solution

A non-metallic, contactless electrical wall outlet with a housing containing a contactless power transmitter and receiver, using inductive coupling, and integrated wireless communication circuitry with anomaly detection and alert capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional metallic contacts are used in electrical wall outlets, then electrical power can be delivered to loads, but safety hazards increase due to exposure to metal contacts

Engineering Contradiction:

ImprovesafetyVSAvoidexposure to metal contacts

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical contact system (metal pins inserting into metal receptacles) with a contactless electromagnetic field-based power transmission system. The transmitter generates an electromagnetic field that induces current in the receiver coil, eliminating the need for physical metal contact and thereby removing safety hazards associated with exposed conductors.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an electromagnetic field as an intermediary medium to transfer power between the outlet and the device. Instead of direct metal-to-metal contact, power is transmitted through the air via electromagnetic coupling between the transmitter coil and receiver coil, serving as a safe intermediary that eliminates harmful direct contact.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If wireless communication hardware is placed in separate devices like modems and routers, then communication functionality is provided, but physical clutter and tripping hazards increase

Engineering Contradiction:

Improvewireless communication functionalityVSAvoidphysical clutter and tripping hazards

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines multiple functions (contactless power transmission and wireless communication) into a single integrated outlet device. The outlet housing contains both the power transmitter and wireless communication circuitry, eliminating the need for separate modem and router devices and thereby reducing physical clutter and associated hazards.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The outlet device is designed to perform multiple functions simultaneously: it provides contactless power transmission to devices and also serves as a wireless communication hub (router/modem). This multi-functionality consolidates what would otherwise require separate devices, reducing clutter while maintaining full functionality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If separate wireless communication devices are used, then network connectivity is provided, but vulnerability to cyber-attacks increases

Engineering Contradiction:

Improvenetwork connectivityVSAvoidcyber-security risks

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent merges the wireless communication functionality directly into the power outlet device. By integrating the router and modem functions within the same housing that provides contactless power, the system reduces the attack surface associated with multiple separate network devices while maintaining full network connectivity capabilities.

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If metal pins are used in plugs, then electrical connection is established, but risk of short circuits increases when plugs are not fully inserted

Engineering Contradiction:

Improveelectrical connectionVSAvoidshort circuit risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical insertion system with electromagnetic coupling. Power transmission begins when the device is brought near the outlet, eliminating the risk of partial insertion shorts that occur with traditional metal pin systems. The electromagnetic field coupling provides inherent protection against short circuits.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

Eliminates safety hazards, reduces clutter, and protects against cyber-attacks by using contactless power transfer and integrated security features.

Implementation Method 1

using inductive coupling

Methodology Applied

Scientific EffectInductive coupling: Electromagnetic Induction

Data Source

PatentUS12456881B2Non-metallic connection electrical wall outlet

Publication Date: 2025.10.28 NON-METALLIC CONNECTORS INC

AI summary

A non-metallic contactless electrical wall outlet has a housing including a mounting interface and a panel. The mounting interface is configured to enable attachment of the housing to a wall. The panel forms an electrically contactless receptacle that is free of metallic material. A power supply is disposed within the housing and includes a supply input configured to electrically connect to an in-wall power source. A contactless electrical power transmitter is disposed within the housing and adjacent to the receptacle. The contactless electrical power transmitter is configured for electrical connection to the power supply and to contactlessly transmit electrical power to a plug received in the receptacle.