Magnetic Drive Coil Switching for Automatic Input Voltage Configuration

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Solution Overview

Problem

Existing magnetic drives in medium-voltage switching units require manual configuration of coils and actuating electronics, which is prone to errors and time-consuming, especially when switching between different input voltages, leading to potential downtime and increased storage needs for replacement parts.

Innovation Solution

An automatic configuration system using a voltage measuring device and electronic circuit or processor to measure input voltage and automatically interconnect coils in parallel or series, eliminating the need for manual intervention and reducing the number of required variants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual configuration of coils and actuating electronics is used, then flexibility in voltage selection is achieved, but configuration errors and time consumption increase

Engineering Contradiction:
Improvevoltage selection flexibilityVSAvoidconfiguration error rate
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The magnetic drive automatically detects the input voltage level and configures its own coil connections (series or parallel) without manual intervention. The system self-adjusts by having the controller measure the voltage and automatically select the appropriate configuration, eliminating human error while maintaining voltage adaptability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-configures multiple coil connection options (series and parallel) and uses voltage detection to automatically select the correct pre-prepared configuration. The possible configurations are prepared in advance, and the system simply needs to detect voltage and activate the appropriate one, reducing both error risk and configuration time

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If manual configuration of coils and actuating electronics is used, then flexibility in voltage selection is achieved, but installation time and downtime increase

Engineering Contradiction:
Improvevoltage selection flexibilityVSAvoidconfiguration time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The magnetic drive automatically detects the input voltage level and configures its own coil connections (series or parallel) without manual intervention. The system self-adjusts by having the controller measure the voltage and automatically select the appropriate configuration, eliminating human error while maintaining voltage adaptability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-configures multiple coil connection options (series and parallel) and uses voltage detection to automatically select the correct pre-prepared configuration. The possible configurations are prepared in advance, and the system simply needs to detect voltage and activate the appropriate one, reducing both error risk and configuration time

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple variants of magnetic drives are manufactured for different voltages, then voltage adaptability is maintained, but manufacturing costs and storage requirements increase

Engineering Contradiction:
Improvevoltage compatibilityVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

A single magnetic drive design incorporates voltage detection capability and automatic coil configuration functionality, allowing one universal model to operate at multiple voltage levels. The controller detects the input voltage and automatically configures the coils accordingly, eliminating the need for separate models for different voltages

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The magnetic drive transitions from a static, fixed-configuration design to a dynamic, adaptive system. The coil connections can change based on detected voltage levels, allowing the same hardware to adapt its configuration in real-time rather than requiring separate fixed variants

Inventive Principle:
Principle #15Dynamics

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 downtime, minimizes errors, and simplifies part storage by enabling quick and reliable voltage adjustments without manual configuration, while reducing manufacturing costs and documentation needs.

Implementation Method 1

a voltage measuring device (21) for measuring a level of an input voltage (22)

Methodology Applied
Scientific EffectVoltage measurement: Ohm's Law

Implementation Method 2

a configuration device (20) for interconnecting the coils (2, 3) in parallel or in series depending on a level of an input voltage (22)

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

The magnetic drive can exert a magnetic force on what is known as an armature plate and attract it

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS20240186088A1Arrangement and method for automatically configuring a magnetic drive
Publication Date: 2024.06.06 SIEMENS AG
  • US20240186088A1 patent drawing

AI summary

An arrangement automatically configures a magnetic drive. The arrangement contains a vacuum switching device having a movable contact and a fixed contact, and a magnetic drive having two coils which are switched in parallel or in series. The magnetic drive, when switched on, exerts an attractive force on an armature and moves the armature. A transmission mechanism is configured to translate a movement of the armature into a movement of the movable contact towards the fixed contact. An actuating device is provided for the magnetic drive, which actuating device can be configured to an input voltage. The magnetic drive has controllable switching devices for the coils, and a configuration device is configured to measure the input voltage and to configure the actuating device to the measured input voltage, and to connect the coils by use of the controllable switching devices depending on the measured input voltage.