Inductive Power Transmission for Hazardous Environments

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Solution Overview

Problem

Existing electrical devices in commercial and industrial applications face issues with overheating and fault conditions due to loose terminations, corrosion, and mechanical stress at the connection points between conductors and devices, which can lead to safety hazards and equipment damage.

Innovation Solution

The implementation of an inductive power transmission system that uses a transmitting inductor and a receiving inductor to transfer power electromagnetically, eliminating the need for direct conductor connections and reducing the risk of overheating and mechanical stress, while ensuring safe and reliable operation in hazardous environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If direct conductor connections are used to power electrical devices, then power transmission is simple and direct, but the termination points are prone to overheating, loosening, and corrosion

Engineering Contradiction:
Improvepower transmission structureVSAvoidconnection reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent replaces the mechanical direct conductor connection system with an electromagnetic induction system. The transmitting inductor generates a magnetic field that induces current in the receiving inductor, eliminating the need for physical conductor terminations and their associated mechanical connection problems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electromagnetic fields as an intermediary medium for power transmission. The transmitting inductor converts electrical energy to electromagnetic energy, which then induces electrical energy in the receiving inductor, serving as a non-contact mediator that eliminates direct conductor contact.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If conductor terminations are tightened to prevent loosening, then connection stability improves, but mechanical stress and potential damage to equipment increase

Engineering Contradiction:
Improvetermination stabilityVSAvoidequipment integrity
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The patent eliminates the mechanical tightening system entirely by replacing direct conductor connections with electromagnetic induction. This removes the need for mechanical fastening and the associated stress and damage risks to equipment.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Use of energy by moving object

If conventional conductor connections are used, then power can be transmitted to devices, but the termination points are susceptible to corrosion and increased contact resistance

Engineering Contradiction:
Improvepower transmission efficiencyVSAvoidcorrosion and contact resistance
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent uses electromagnetic fields as an intermediary to transmit power without physical conductor contact. This eliminates the corrosion and contact resistance problems that affect direct conductor connections, as there are no exposed termination points susceptible to environmental degradation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the physical conductor connection system with an electromagnetic induction system, eliminating the metal-to-metal contact that is susceptible to corrosion and increasing contact resistance over time.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Ease of manufacture

If direct conductor connections are used in hazardous environments, then power supply is straightforward, but the risk of arcing and explosions increases

Engineering Contradiction:
Improvesystem installation simplicityVSAvoidarc and explosion risk
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent introduces electromagnetic fields as a non-contact intermediary for power transmission. This eliminates exposed conductor terminations that could produce arcs, thereby reducing explosion risks in hazardous environments while maintaining straightforward power supply capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical conductor connection system with electromagnetic induction, eliminating the physical contact points where arcing could occur and reducing safety hazards in explosive or hazardous atmospheres.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 solution reduces the likelihood of overheating, mechanical wear, and fault conditions, enhancing safety and reliability by providing a stable power supply to electrical devices without the need for direct conductor terminations, thus minimizing the risk of explosions and equipment damage.

Implementation Method 1

a transmitting inductor located within the enclosure and electrically connected to the power source, where the first current generated by the power source flows through the transmitting inductor. The electrical system can further include a receiving inductor positioned proximate to the transmitting inductor within the enclosure, where the first current flowing through the transmitting inductor induces a second current to flow through the receiving inductor.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10320238B2Inductive power transmission for electrical devices
Publication Date: 2019.06.11 EATON INTELLIGENT POWER LTD
  • US10320238B2 patent drawing
  • US10320238B2 patent drawing
  • US10320238B2 patent drawing

AI summary

An electrical system that includes an enclosure and a power source located outside the enclosure and generating a first current. The electrical system can also include a transmitting inductor located within the enclosure and electrically connected to the power source, where the first current generated by the power source flows through the transmitting inductor. The electrical system can further include a receiving inductor positioned proximate to the transmitting inductor within the enclosure, where the first current flowing through the transmitting inductor induces a second current to flow through the receiving inductor. The electrical system can also include a device located within the enclosure and electrically connected to the receiving inductor, wherein the second current induced in the receiving conductor powers the device.