Electric Generator Rotational Resistance Avoidance

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Solution Overview

Problem

Traditional electric generators experience rotational resistance due to induced magnetic polarities, requiring additional mechanical power input to overcome this resistance when electrical power is supplied to the load.

Innovation Solution

The electric generator design features a rotating set of magnets attached to a shaft with conductor coils on either side, where the reaction force from induced magnetic polarities is used to freely rotate the conductor coils in the opposite direction, eliminating the need for additional mechanical power input by converting rotational resistance into mechanical force to push the conductor coils.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If electrical current is applied to the load, then electrical power is supplied to the load, but rotational resistance increases requiring additional mechanical power input

Engineering Contradiction:
Improveelectrical power outputVSAvoidmechanical power input
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The patent converts the harmful reaction force (rotational resistance) generated by induced magnetic polarities into a beneficial driving force. The reaction force that normally opposes rotor rotation is redirected to drive the conductor coil assembly in the opposite rotational direction, transforming energy loss into useful electrical power output.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

Instead of having the conductor coils fixed on the stator, the patent inverts the arrangement by mounting conductor coils on a freely rotatable shaft that rotates in the opposite direction to the magnet assembly. This inversion allows the reaction force to drive the conductor coils rather than resist their operation.

Inventive Principle:
Principle #13The other way round (Inversion)

2Power

If mechanical power input is increased to overcome rotational resistance, then electrical power supplied to the load increases, but energy efficiency decreases

Engineering Contradiction:
Improveelectrical power outputVSAvoidenergy loss to rotational resistance
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The patent eliminates energy loss by converting the reaction force (which causes rotational resistance) into a useful driving force. The force that would normally oppose rotor rotation and cause energy loss is instead used to rotate the conductor coils and generate electrical power, completely eliminating the energy loss associated with rotational resistance.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Device complexity

If traditional stator-rotor structure is used, then generator design is simple, but rotational resistance causes burden on mechanical power input

Engineering Contradiction:
Improvegenerator structureVSAvoidmechanical power input
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent maintains structural simplicity while eliminating rotational resistance burden by inverting the traditional stator-rotor relationship. Instead of fixing conductor coils on the stator and rotating magnets on the rotor, the patent rotates both magnets and conductor coils on separate shafts in opposite directions, allowing the reaction force to drive the conductor coil rotation rather than resist it.

Inventive Principle:
Principle #13The other way round (Inversion)

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 reduces the mechanical power required to generate electrical power by utilizing the reaction force from induced magnetic polarities, allowing the conductor coils to rotate freely and reducing rotational resistance, thus minimizing the increase in mechanical power input needed.

Implementation Method 1

These two parts function to convert mechanical energy into electrical energy by inputting mechanical energy into the rotor to generate electromotive force in a conductor coil as a result of the magnetic flux variation over the conductor coil.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

When the electrical current of the electromotive force induced in the conductor coil is applied to a load, the electrical current will induce the conductor coil itself in order to generate magnetic polarities in the conductor coil, which are similar to the original magnetic polarities that induces such electrical current. These forces, which are caused by newly induced magnetic polarities, will react in the opposite direction of the rotation of the mechanical power inputted into the rotor.

Methodology Applied
Scientific EffectElectromagnetic interaction: Lorentz Force

Data Source

PatentUS11025153B2Electric generator with a rotational resistance avoidance feature
Publication Date: 2021.06.01 PUREEPASWONG PHEE
  • US11025153B2 patent drawing
  • US11025153B2 patent drawing
  • US11025153B2 patent drawing

AI summary

The electric generator with the rotational resistance avoidance feature in the present invention comprises a rotating set of magnet parts interposed between at least two rotating sets of conductor coil parts, which are respectively installed on opposite sides of the rotating set of magnet parts. The diameters of the rotating sets of conductor coil parts are configured to be larger than the diameter of the rotating set of magnet parts. The rotational speed of the conductor coil parts and the magnet parts are therefore different, which causes the induction of the electromotive force within the conductor coils by way of variation of the magnetic field. When the mechanical power input is applied only on the rotating set of magnet parts and the electromotive force induced in the conductor coil, which has been connected to a load, is applied to a load; the electrical current will induce the conductor coil itself to generate magnetic polarities which are similar to the original magnetic polarities of the permanent magnet. The sets of conductor coils are pushed by the said pushing force to be continuously rotated in a clockwise direction (freely rotated without being driven by the mechanical power input). The rotating set of magnets in the middle is also continuously rotated by the mechanical power input. With this configuration, the rotational resistance can be avoided. Therefore, the additional mechanical power input is not necessary (rather, only a partial increase is required), and the electrical power can be generated by converting the magnetic energy stored in permanent magnets, to be supplied to the load.