Fastener-Free Thermochromic Indicators for Rapid Panel Identification

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Solution Overview

Problem

Conventional identification methods for industrial automation devices, such as name plates, are inefficient and time-consuming, as they require close reading and are not easily reusable or adaptable, leading to costly downtime in industrial settings.

Innovation Solution

The use of indicators made from thermochromic materials and rubberized plastic or silicone, which can be attached without fasteners and provide color coding and temperature indication, allowing quick identification of devices and reducing downtime.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If conventional identification methods (name plates) are used for industrial automation devices, then device identification is possible, but identification time is excessive and worker efficiency is reduced

Engineering Contradiction:
Improveidentification timeVSAvoidworker efficiency
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent applies color-coded indicators attached to industrial automation devices to enable rapid visual identification. Different colors represent different device types or statuses, allowing workers to instantly distinguish between devices without reading detailed name plates. This directly reduces identification time and improves worker efficiency in panels with many similar devices.

Inventive Principle:
Principle #32Color changes

2Speed

If indicators are attached to industrial automation devices, then identification speed is improved, but device complexity increases due to additional components

Engineering Contradiction:
Improveidentification speedVSAvoidsystem complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The identification system is segmented into separate, removable indicator components rather than integrating identification features directly into the device housing. This allows the indicators to be independently attached and removed without modifying the core device structure, thus improving identification speed while minimizing added complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The indicators are designed as universal components that can be attached to multiple different device types using standard attachment methods. This multi-functionality reduces the need for device-specific identification features, improving identification speed across various devices while avoiding the complexity of custom solutions for each device type.

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

3Temperature

If thermochromic materials are used for indicators, then temperature indication capability is added, but manufacturing complexity increases

Engineering Contradiction:
Improvetemperature indicationVSAvoidmanufacturing complexity
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The patent incorporates thermochromic materials into the indicators that change color in response to temperature variations. This allows the same indicator component to provide both visual identification and temperature monitoring functions. The thermochromic property is integrated into the material selection rather than adding separate sensing mechanisms, thus adding temperature indication capability while keeping manufacturing relatively simple.

Inventive Principle:
Principle #35Parameter changes

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

The indicators enable rapid identification of specific devices, reducing the time and cost associated with maintenance and troubleshooting by allowing workers to quickly locate and address issues, even in densely arranged panels.

Implementation Method 1

The indicator is constructed from a thermochromic material having either a reversible or irreversible color change

Methodology Applied
Scientific EffectThermochromism: Thermochromism

Data Source

PatentEP3799102B1Indicators for industrial devices
Publication Date: 2024.04.10 ROCKWELL AUTOMATION TECH INC
  • EP3799102B1 patent drawingFigure 1
  • EP3799102B1 patent drawingFigure 2
  • EP3799102B1 patent drawingFigure 3

AI summary

An indicator is provided that can couple, without a fastener, to a housing of an industrial device.