Low RPM Generator with Large Diameter Rotor for Direct Wind Power
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Solution Overview
Problem
Conventional electric generators are inefficient at low revolutions per minute and require batteries for energy storage, leading to noise, maintenance issues, and inefficiencies in wind and human-powered applications.
Innovation Solution
A low rpm electric generator with a larger diameter, designed for 2-dimensional cutting of flat stock materials, operates without batteries, uses zig zag winding with air core magnetic circuits, and incorporates magnetically conductive box closure pieces to reduce noise and maintenance, allowing efficient energy extraction from low wind speeds and human power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional electric generators are used, then they can generate electricity at high revolutions per minute, but they are inefficient at low revolutions per minute and require batteries for energy storage
Solution Approach 1:
The patent changes the physical parameters of the generator by increasing its diameter and optimizing the magnetic circuit for low-speed operation. This allows the generator to efficiently convert mechanical energy to electrical energy at low RPM without requiring batteries or energy storage systems, directly resolving the contradiction between productivity at low speed and system complexity
2Reliability
If batteries are used for energy storage in wind and human-powered applications, then energy can be stored for later use, but noise and maintenance issues increase
Solution Approach 1:
The patent extracts and eliminates the battery component from the system by designing a generator that can directly power loads at low speeds. This removal of the energy storage device eliminates the noise and maintenance issues associated with batteries while maintaining operational reliability through direct energy conversion
Solution Approach 2:
The patent replaces the mechanical energy storage system (batteries) with a direct electromagnetic conversion system optimized for low-speed operation. The larger diameter generator with optimized magnetic circuits directly converts mechanical energy to electrical energy without intermediate storage, eliminating harmful factors while maintaining reliability
3Productivity
If conventional generators are used in wind applications, then they can operate at high wind speeds, but they are inefficient at low wind speeds
Solution Approach 1:
The patent changes the physical parameters of the generator by increasing its diameter and optimizing the magnetic circuit for low-speed operation. This allows the generator to efficiently convert wind energy to electrical energy at low wind speeds where conventional generators fail, expanding the operating speed range while maintaining productivity
4Power
If reduction gears are used to increase torque at low speeds, then power output can be increased, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent extracts and eliminates the reduction gear from the system by designing a generator that produces sufficient torque directly at low speeds through its larger diameter and optimized magnetic circuits. This removes the mechanical complexity and maintenance requirements of gear systems while maintaining power output
Solution Approach 2:
The patent replaces the mechanical torque multiplication system (reduction gears) with an electromagnetic system optimized for low-speed high-torque operation. The larger diameter generator with optimized magnetic circuits directly produces the required torque without mechanical gear trains, reducing complexity while maintaining power output
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 generator effectively generates power in low wind conditions and human-powered scenarios with reduced noise and maintenance, providing efficient energy production without the need for batteries or reduction gears, enhancing usability in various applications such as wind, water, and wave power systems.
Implementation Method 1
The generator is designed to operate at lower revolutions per minute than conventional generators, so as to be driven by human legs or arms, wind generation at low wind speeds
Implementation Method 2
incorporates magnetically conductive box closure pieces to reduce noise and maintenance
Data Source
AI summary
Simple to manufacture electric generators or motors and methods of manufacturing such are disclosed. Such devices are preferably manufactured from 2-dimensionally cut, flat stock materiel. The generator or motor has two large diameter rotors to enable, for example, useful generation of electricity at low revolutions per minute. The frame of the device includes side walls with castellated stators on the periphery of the walls. Castellated end plates removeably interlock with the stators. The rotors drive magnets past the stators in the frame of the device. In preferred embodiments, rotors are driven by human legs or arms, low speed wind, or water with low or zero water drop distance.