Rocker Action Generator for Extended Pulse Duration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric generators with moving magnets produce short-duration transient voltage pulses, limiting their application in energy harvesting for extended periods, particularly in industrial, scientific, and medical radio transmitters, due to the reliance on closed magnetic circuits and non-sinusoidal outputs.
Innovation Solution
A bi-directional angular displacement centered fulcrum lever with magnets at opposite ends, where magnetic attraction and repulsion induce voltage pulses in coils, extending the pulse duration by alternating magnetic field concentration and expansion through a copper wire coil system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a complete closed magnetic circuit is used with quick magnetic pole flipping, then the generator produces a transient voltage pulse, but the pulse duration is short (1 to 10 milliseconds) and limited in use
Solution Approach 1:
The magnetic circuit is segmented into two separate paths: a closed magnetic circuit path and an open magnetic circuit path. This segmentation allows the system to transition between different magnetic states, enabling extended pulse duration by alternating between closed and open circuit configurations, thereby resolving the limitation of short pulse duration in conventional closed-circuit generators.
Solution Approach 2:
The invention dynamically transitions the magnetic circuit between closed and open states during operation. By switching between these two magnetic circuit configurations, the system extends the pulse duration beyond the conventional 1-10 millisecond limit, allowing for sustained energy harvesting applications.
2Duration of action of moving object
If magnets are disposed at opposite ends of a bi-directional angular displacement centered fulcrum lever, then extended duration electrical output is generated, but the device complexity increases
Solution Approach 1:
The invention combines multiple functions into a single integrated structure: the fulcrum lever serves as both the mechanical displacement element and the magnetic circuit carrier. By merging the mechanical support function and magnetic circuit function into one component, the design achieves extended pulse duration without proportionally increasing overall device complexity.
Solution Approach 2:
The fulcrum lever is designed as a multi-functional component that simultaneously provides mechanical support, enables angular displacement, and carries magnets for magnetic circuit formation. This multi-functionality reduces the need for separate components, thereby managing device complexity while achieving extended electrical output duration.
3Duration of action of moving object
If a first magnet is in physical and magnetic contact with a magnetic steel center core while a second magnet is displaced a finite distance away, then alternating magnetic field concentration and expansion occurs, but the manufacturing precision requirements increase
Solution Approach 1:
The system uses magnetic attraction and repulsion forces between magnets and magnetic steel cores as counterbalancing forces to maintain precise positioning. The magnetic forces themselves provide the positioning mechanism, reducing the need for mechanically precise mounting structures and thereby lowering manufacturing precision requirements while maintaining extended pulse duration.
Solution Approach 2:
The magnetic system is designed to be self-positioning through magnetic attraction and repulsion forces. The magnets automatically align and position themselves relative to the magnetic steel cores during operation, eliminating the need for high-precision mechanical positioning and reducing manufacturing complexity.
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 generates extended duration electrical outputs with algebraically additive voltage pulses, enhancing the energy harvesting capability for applications requiring sustained power, such as ISM Band radio transmitters.
Implementation Method 1
the path between the magnet(s) pole(s) includes at least one coil of wire... induces a voltage pulse that is felt at the coil's terminals
Implementation Method 2
low and relatively high permeability magnetic path sections... concentrates itself within the magnetic steel core centered in the coil winding
Implementation Method 3
due to magnetic attraction, a first magnet is in physical and magnetic contact with a magnetic steel center core
Data Source
AI summary
An extended duration burst electrical energy harvesting generator in one embodiment including two magnets situated on opposite ends of an angular movable lever with a centered fulcrum support in an angular displacement (see-saw) arrangement. The two magnets are under the bi-stable magnetic attractive influence of dual magnetic metal (high permeability) substrates that are disposed at a distance within two separate center core electric coil bobbin forms that are situated under the opposite ends of the lever. Either one of the magnets, in time, will make or break contact with one of the substrates producing an instantaneous induced voltage at each of the coil terminals. The two induced voltages can be utilized to power battery-less and wireless remote communications control function such as ISM Band wireless transmitters and battery-less electronic device applications.