Pulley Electric Motor with Tangential Windings and Brushless Conductor
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Solution Overview
Problem
Existing electric motor technologies face inefficiencies due to wasted magnetic force, excessive heat generation, and friction from brushes, leading to reduced torque and increased energy consumption.
Innovation Solution
The PULLEY ELECTRIC MOTOR design features windings positioned near the outer perimeter of a larger diameter disk, utilizing magnetic repulsion through the centers of donut-shaped permanent magnets, eliminating brushes with a sealed bearing conductor, and optimizing airflow to reduce heat buildup, thereby enhancing torque and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brushes are used to electrify the windings, then electrical connection is maintained, but friction increases and windings are electrified too long causing excessive heat
Solution Approach 1:
The patent removes the brushes from the system entirely, extracting the harmful friction and overheating problems while maintaining electrical connection through an alternative mechanism (sealed bearing conductor). This directly resolves the contradiction by eliminating the source of both friction and excessive electrification duration.
Solution Approach 2:
The patent replaces the mechanical brush-contact system with a sealed bearing conductor system, substituting a mechanical solution with a different mechanical approach that eliminates friction and controls electrification duration, thereby reducing heat generation while maintaining reliability.
2Volume of moving object
If windings are tightly packed into a small space, then space utilization is improved, but excessive heat builds up requiring fan blade cooling
Solution Approach 1:
The patent removes the fan blade cooling system by addressing the root cause of heat buildup through shorter electrified duration and improved airflow, extracting the need for active cooling while maintaining compact winding space.
3Force
If windings are positioned close to the axle, then magnetic force is applied, but torque is reduced due to lack of mechanical advantage
Solution Approach 1:
The patent repositions the windings from a radial arrangement near the axle to a tangential arrangement at the outer perimeter of the disk, changing the dimensional relationship between the windings and the magnetic field. This dimensional change maximizes the lever arm for torque generation while maintaining effective magnetic force application.
4Force
If magnetic force slides windings across a plane parallel to the magnet face, then electromagnetic force is applied, but some magnetic force is wasted pushing towards the axle
Solution Approach 1:
The patent inverts the traditional sliding motion arrangement by positioning windings to move tangentially at the disk perimeter rather than radially near the axle. This inversion redirects the magnetic force to act perpendicular to the radius, eliminating the wasted radial component and maximizing useful tangential force for rotation.
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
This design increases rotational force, reduces heat generation, and eliminates the need for cooling fans, resulting in improved energy efficiency and reduced size limitations while maintaining mechanical advantage.
Implementation Method 1
the face of the windings repulse from the magnetic field on a plane almost perpendicular to the face of the permanent magnet in the direction of the rotation of the axle
Implementation Method 2
the strongest electromagnetic force pushing towards the axle
Data Source
AI summary
An electric motor apparatus that includes a disk with an increased mechanical advantage to the attached axle, with donut-shaped permanent magnets, windings, a fulcrum (A.K.A. axle), bearings, a commutator, and a single bearing conductor that replaces the brushes. The center axis consists of the windings and spools with the axis of the windings placed coradial in orbit around the fulcrum of a disk. The donut-shaped permanent magnets are cut with a slot to allow passage of the disk, spools, and windings. When windings of magnet wire are inserted with windings around the spools such that the center points of the faces of the spools are concentric to the same radius of the disk and pass through the center of a donut-shaped permanent magnet, and the windings are electrified with the correct polarity, the windings are repulsed magnetically in the direction of rotation of the orbit around the fulcrum (A.K.A. axle) causing the disk and axle to rotate. Upon completion of the fractional rotation, the original set of windings is deenergized and another set of windings is energized further rotating the disk and axle.