Self-Powering Wireless Switch with Rotating Magnetic Circuit
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Solution Overview
Problem
Existing wireless switches face issues such as frequent battery recharging needs, complex and costly manufacturing of self-powered models, low power generation efficiency, and unstable appliance control due to intricate magnetic circuit structures.
Innovation Solution
A self-generating power apparatus with a simplified structure comprising a coil assembly and a permanent magnet assembly, where the soft magnetic plate is arranged in an up-down rotation manner, forming multiple closed magnetic circuits to maximize magnetic flux and power generation efficiency, using few components to reduce manufacturing costs and increase power supply reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing self-powered wireless switches use complex magnetic circuit structures, then power generation capability is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The magnetic circuit is segmented into distinct functional modules: permanent magnet assembly, soft magnetic frame assembly, and coil assembly. Each module is independently designed and manufactured, then assembled together. This segmentation simplifies the overall structure while maintaining power generation capability, directly resolving the contradiction between power generation and manufacturing complexity.
Solution Approach 2:
The patent merges the permanent magnet and soft magnetic frame into an integrated permanent magnet assembly, where the soft magnetic frame serves dual functions as both a magnetic circuit component and a structural support. This merging reduces the number of separate components and simplifies manufacturing while maintaining the necessary magnetic circuit functionality.
2Power
If existing self-powered wireless switches use intricate component assemblies, then power generation is achieved, but manufacturing convenience decreases
Solution Approach 1:
The device is divided into three main assemblies that can be manufactured separately and then quickly assembled: permanent magnet assembly, soft magnetic frame assembly, and coil assembly. This segmentation enables parallel manufacturing and simplifies quality control, directly improving ease of manufacture while maintaining power generation efficiency.
Solution Approach 2:
The soft magnetic frame serves multiple functions simultaneously: it forms part of the magnetic circuit, provides structural support for the permanent magnets, and acts as a mounting structure for the coil assembly. This multi-functionality reduces the total number of components needed, simplifying manufacturing without compromising power generation.
3Ease of operation
If battery-powered wireless switches are used, then wireless control functionality is achieved, but frequent recharging is required
Solution Approach 1:
The wireless switch generates its own operating power through the permanent magnet assembly and coil assembly that convert mechanical motion from button pressing into electrical energy. This self-service power generation eliminates the need for external battery recharging, resolving the contradiction between wireless convenience and battery maintenance.
Solution Approach 2:
The patent replaces the chemical energy storage system (batteries) with a direct mechanical-to-electrical energy conversion system using electromagnetic induction. The mechanical pressure from button pressing is directly converted into electrical energy through the coil and permanent magnet interaction, eliminating the need for chemical energy storage and recharging cycles.
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 achieves high power generation efficiency, strong currents, and sufficient power supply while simplifying the manufacturing process, reducing costs and enhancing the stability of household appliance control.
Implementation Method 1
the coil generates power according to an electromagnetic induction principle
Implementation Method 2
The first permanent magnet is attracted to the first lower soft magnetic plate, the second permanent magnet is attracted to the second lower soft magnetic plate
Data Source
AI summary
An apparatus for self-generating power and a wireless switch applying same are provided. The apparatus includes a coil assembly and a permanent magnet assembly. In an initial state, left and right ends of a soft magnetic plate come into contact with a first permanent magnet and a second upper soft magnetic plate respectively to form a first closed magnetic circuit, when the soft magnetic plate is rotated relative to the permanent magnet assembly, the left and the ends of the soft magnetic plate come into contact with a first upper soft magnetic plate and a second permanent magnet respectively to form a second closed magnetic circuit, and a direction of a magnetic line of force passing through the soft magnetic plate in the first closed magnetic circuit is opposite to that of a magnetic line of force passing through the soft magnetic plate in the second closed magnetic circuit.