Wireless Terminal Block Sensing for Retrofit Power Measurement

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Solution Overview

Problem

Existing terminal block arrangements lack an easy and efficient method for measuring physical quantities such as current and voltage without requiring complex wiring or redesign.

Innovation Solution

A sensor device with wireless transmission capabilities is designed to measure physical quantities, allowing for easy installation and wireless data transmission, powered by energy harvesting or an internal energy source, and compatible with existing terminal block arrangements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a sensor device is integrated into the terminal block arrangement, then measurement capability is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement capabilityVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The sensor device is designed as a separate, modular unit that can be attached to the terminal block arrangement without integrating sensors directly into the terminal blocks themselves. This segmentation allows measurement functionality to be added while keeping the terminal block design simple and unchanged.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor device incorporates multiple sensors that can measure different physical quantities (current, voltage, temperature) simultaneously, providing universal measurement capability across multiple parameters without requiring separate measurement devices for each quantity.

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

2Ease of operation

If wireless transmission unit is added to the sensor device, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveease of useVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The wireless transmission unit replaces the need for physical wiring and cable connections between the sensor device and the readout device. This substitution eliminates complex cable management and connection requirements, significantly improving ease of operation and installation.

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

3Adaptability or versatility

If separate sensor device is used instead of integrated sensors, then adaptability is improved, but device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sensor device is designed to be dynamically attachable and detachable from the terminal block arrangement, allowing users to position sensors at different locations and measure different physical quantities as needed. This dynamic configuration capability provides high adaptability without requiring permanent integration.

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

Enables simple and reliable measurement of current, voltage, and other physical quantities in terminal blocks with minimal retrofitting, reducing installation complexity and maintenance, and facilitating three-phase power measurement.

Implementation Method 1

The sensor device can have a wireless transmission unit, which is set up for the wireless transmission of measured values from the at least one sensor of the sensor device to a readout device that is separate from the sensor device

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

the sensor device has at least one sensor for measuring a physical quantity of the terminal block arrangement or at least one terminal block of the terminal block arrangement

Methodology Applied
Scientific EffectSensor detection:

Data Source

PatentUS12601771B2Sensor device for an electrical terminal arrangement, electrical terminal arrangement, electrical terminal block, switchgear cabinet and read-out device
Publication Date: 2026.04.14 WAGO VERW GMBH
  • US12601771B2 patent drawing
  • US12601771B2 patent drawing
  • US12601771B2 patent drawing

AI summary

A sensor device for a terminal block arrangement including at least one sensor for measuring a physical quantity of the terminal block arrangement or of at least one terminal block of the terminal block arrangement.