Self-Powered Wireless Switch Using Electromagnetic Microgeneration

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Solution Overview

Problem

Existing wireless switches rely on batteries, leading to environmental pollution, increased operating costs, and inconvenient installation due to the need for frequent battery replacements and fixed installation locations, which limits their widespread use.

Innovation Solution

A self-powered wireless switch that utilizes a microgenerator with a magnet assembly and coil assembly to convert mechanical energy from the switch panel into electrical energy, eliminating the need for batteries and allowing for wireless control of electronic devices without the need for wall wiring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless switches use batteries as power source, then wireless control function is achieved, but operating cost increases and environmental pollution occurs due to frequent battery replacement

Engineering Contradiction:
Improvewireless control functionVSAvoidenvironmental pollution from battery waste
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The wireless switch generates its own power through a micro-generator that converts mechanical energy from button pressing into electrical energy. This self-powered mechanism eliminates the need for external batteries, allowing the device to serve itself without requiring battery replacement or disposal, thereby resolving the environmental pollution issue while maintaining wireless control functionality

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the chemical energy storage system (batteries) with a mechanical energy conversion system (micro-generator). The micro-generator transforms mechanical energy from user interaction into electrical energy, substituting the traditional battery-based power supply and eliminating the harmful waste associated with disposable batteries

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If wireless switches are affixed on wall structure, then installation location is fixed, but battery replacement becomes inconvenient requiring detachment and disassembly

Engineering Contradiction:
Improveinstallation processVSAvoidbattery replacement convenience
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The self-powered wireless switch eliminates batteries entirely through the micro-generator system, removing the maintenance burden of battery replacement. Users simply press buttons on the affixed switch to generate power and control devices, without needing to detach or disassemble the unit for battery access

Inventive Principle:
Principle #25Self-service

3Reliability

If traditional wired switches are installed, then reliable electrical connection is achieved, but installation complexity increases requiring wall grooves, wire sleeves, and pre-designed wiring

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidinstallation structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the complex wired electrical connection system with a wireless control system. The micro-generator produces electrical energy that powers a wireless transmission module, eliminating the need for wall grooves, PVC wire sleeves, and pre-installed electrical wiring while maintaining reliable control functionality through wireless signals

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention extracts and removes the complex wiring infrastructure from the switch installation system. By using a self-powered wireless design, the patent eliminates the need for electrical wires, wire sleeves, and wall grooves, simplifying the installation process while maintaining control reliability through wireless communication

Inventive Principle:
Principle #2Taking out (Extraction)

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 self-powered wireless switch provides a reliable, safe, and convenient solution by minimizing environmental impact, reducing installation costs, and enabling flexible placement, while maintaining the functionality of traditional switches.

Implementation Method 1

The coil assembly comprises a coil core and a coil wire wound around the coil core to form a magnetic coil. The magnet assembly is arranged at one side of the coil assembly to align with the centerline of the coil assembly

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12199605B2Self-powered wireless switch and applications thereof
Publication Date: 2025.01.14 LIU YUANFANG
  • US12199605B2 patent drawing
  • US12199605B2 patent drawing
  • US12199605B2 patent drawing

AI summary

A self-powered wireless switch includes at least one micro generator and a control panel for transmitting wireless control signals, the micro generator including a magnet assembly and a coil assembly being moved relatively to one another to generate an induced current within the coil assembly; the coil assembly including an iron core and a wire winding around the outside of the iron core to form a magnetic coil; the magnet assembly including a permanent magnet and magnet conductive plates arranged at two sides of the opposite magnetic poles of the permanent magnet. The self-powered wireless switch enables the magnetic assembly and the coil assembly to move relatively to one another and converts the mechanical energy to electricity, thereby achieving self-power generation and providing electricity to the control panel for transmission of wireless control signals.