Coating Device Wireless Power Transfer for High-Voltage Isolation

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Solution Overview

Problem

Existing coating devices face challenges with power supply to electrical consumers in high-voltage and explosion-proof environments, leading to frequent battery replacements, resource consumption, and high costs due to the use of batteries.

Innovation Solution

A wireless energy transmission system using inductive coupling to supply electrical loads in high-voltage and explosion-proof areas, ensuring electrical isolation and enabling data communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If batteries are used to power electrical consumers in high-voltage areas, then power supply is achieved, but frequent replacement is needed leading to high resource consumption and costs

Engineering Contradiction:

Improvepower supply reliabilityVSAvoidbattery resource consumption

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent replaces the mechanical battery system with a wireless energy transmission system using electromagnetic fields. The transmitting unit in the grounded area wirelessly transmits energy to the receiving unit in the high-voltage area through electromagnetic coupling, eliminating the need for physical batteries and their associated replacement and disposal issues.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary wireless energy transmission system consisting of transmitting and receiving units that couple through electromagnetic fields. This intermediary system bridges the energy supply from the grounded area to the high-voltage area without direct electrical connection, solving both power supply reliability and resource consumption problems.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Use of energy by moving object

If wired power supply is used for electrical consumers in high-voltage areas, then power transmission is efficient, but electrical isolation is required increasing device complexity

Engineering Contradiction:

Improvepower transmission efficiencyVSAvoidelectrical isolation complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent replaces the wired electrical connection system with a wireless electromagnetic energy transmission system. This substitution eliminates the need for complex electrical isolation measures while maintaining efficient energy transmission through the electromagnetic coupling between transmitting and receiving units.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The wireless energy transmission system acts as an intermediary that transfers energy without direct electrical contact. The transmitting unit in the grounded area and receiving unit in the high-voltage area are coupled through electromagnetic fields, providing both efficient power transmission and inherent electrical isolation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If batteries are used for electrical consumers outside the rotary atomizer, then power supply is achieved, but replacement frequency increases reducing productivity

Engineering Contradiction:

Improvepower supply availabilityVSAvoidoperational continuity

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the battery system with a continuous wireless energy transmission system that supplies power to electrical consumers in real-time. This eliminates interruptions caused by battery replacement and ensures continuous operational availability of sensors and other electrical devices.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The wireless energy transmission system provides continuous power supply to electrical consumers without interruption. The transmitting unit continuously transmits energy through electromagnetic fields to the receiving unit, ensuring uninterrupted operation of electrical devices and eliminating downtime associated with battery replacement.

Inventive Principle:

Principle #20Continuity of useful action

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

Eliminates the need for frequent battery replacements, reduces resource consumption, and lowers operational costs while maintaining safety and functionality in high-voltage and explosion-proof environments.

Implementation Method 1

a transmission system for wirelessly transmitting the electrical energy required to operate the consumer to the consumer

Methodology Applied

Scientific EffectInductive coupling: Electromagnetic Induction

Data Source

PatentEP4281225B1Coating device with a transfer device for wireless transfer of power and/or data

Publication Date: 2025.07.16 DUERR SYST AG

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AI summary

The invention relates to a coating device (e.g. a painting robot) for coating components (e.g. motor vehicle body parts) with at least one electric consumer (4) which requires electric energy for operation. The invention provides a transmission system (5-10) for the wireless transmission of the electric energy required for operating the at least one consumer (4) to the consumer (4) and/or for the transmission of data from and/or to the at least one consumer (4).