Pedal Generator Drum Layout for Higher Output With Lower Weight
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Solution Overview
Problem
Existing bike systems for generating electricity face challenges due to limitations in size, weight, and efficiency, leading to noise and cooling issues, making it difficult to scale up while maintaining practicality and human usability.
Innovation Solution
A lightweight, wood-framed electric generator with a drum design featuring stator poles, conductors, and rotating magnets, coupled with a crank and pedals, capable of generating electricity and providing cooling through a fan powered by pedaling, with adjustable components for user comfort and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the size of bike generator systems is increased to improve power generation capacity, then electricity generation efficiency is improved, but weight increases prohibitively
Solution Approach 1:
The generator system is divided into modular components including the drum, stator poles, conductors, rotating magnets, and crank mechanism. This segmentation allows for optimized weight distribution and enables selective assembly based on power requirements, resolving the contradiction between generation capacity and weight by allowing scalable configuration.
Solution Approach 2:
The patent transitions from traditional horizontal bike generator configurations to a vertical drum-based design. This dimensional change optimizes the weight-to-power ratio by redistributing mass vertically and improving the efficiency of energy conversion, thereby achieving higher power generation capacity without proportionally increasing weight.
2Ease of manufacture
If traditional bike generator designs are used, then manufacturing is simpler, but noise and efficiency losses occur due to limited size
Solution Approach 1:
The drum is constructed using composite materials including wood or composite panels, which reduces overall weight while maintaining structural integrity. This allows for larger, more efficient generator dimensions without proportionally increasing weight, thereby improving efficiency without complicating manufacturing processes.
3Productivity
If larger generator systems are created to improve power output, then electricity generation is improved, but cooling capabilities are insufficient
Solution Approach 1:
The drum structure serves multiple functions simultaneously: it acts as the magnetic field generator, provides structural support for stator poles and conductors, and incorporates integrated cooling features. This multi-functionality allows the system to handle higher power outputs with adequate cooling without requiring separate cooling systems that would add weight and complexity.
4Reliability
If conventional generator designs are used, then structural requirements are met, but they lack additional user benefits such as cooling and entertainment
Solution Approach 1:
The patent merges the generator function with additional user benefit features including integrated cooling fans, entertainment systems, and productivity tools into a single unified drum-based structure. This combination maintains structural integrity while adding versatility, allowing the system to provide multiple benefits simultaneously without requiring separate devices.
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 system generates electricity efficiently, provides effective cooling, and enhances workout output, while being lightweight and compact enough for affordable shipping and use in various applications, including bicycles and vehicles.
Implementation Method 1
A number of stator poles (e.g., 10, 20, 30, 50, 60, 100, or more, etc.) are disposed at an edge of each side wall. A conductor is disposed about (e.g., wound, wrapped, etc.) the of stator poles... A plurality of magnets (e.g., 10, 20, 30, 40, 50, 80, or more than 100, etc.) are disposed between an edge of the first and second plates
Data Source
AI summary
Methods of constructing electrical machines using 2 dimensional flat sheet cutting implemented in human generation and vehicle propulsion and regeneration.