DIN Rail Terminal Block Thermal Sensing for Overheating Mitigation
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Solution Overview
Problem
Existing terminal blocks in power devices lack effective monitoring and prevention mechanisms for overheating, which can lead to inefficiencies and potential hazards due to high resistance and heat generation.
Innovation Solution
Incorporation of thermal conductors and temperature sensors into DIN rail terminal blocks, coupled with a controller circuit to monitor and mitigate abnormal temperature readings by adjusting current flow or notifying users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If terminal blocks are used to conduct high current, then power transmission capability is improved, but heat generation and risk of overheating increase
Solution Approach 1:
Temperature sensors are pre-installed within the terminal block recesses and thermal conductors are pre-positioned to contact internal conductors before operation begins. This allows immediate temperature monitoring from startup, enabling early detection of overheating conditions before they lead to failures.
Solution Approach 2:
The system continuously monitors temperature via sensors and provides feedback to the control system. When abnormal temperature rise is detected, the controller adjusts current flow or triggers alerts, creating a closed-loop control system that dynamically responds to thermal conditions.
2Reliability
If thermal monitoring components are added to terminal blocks, then overheating prevention capability is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into the terminal block structure: electrical connection, thermal conduction, and temperature sensing. The thermal conductor and temperature sensor are integrated within the same housing recesses, eliminating the need for separate monitoring devices and reducing overall system complexity.
Solution Approach 2:
The terminal block is designed with multi-functionality: it serves as both an electrical connector and a thermal monitoring station. The recesses that accommodate jumpers also house thermal conductors and sensors, allowing the same structural features to serve multiple purposes.
3Measurement precision
If thermal conductors and sensors are integrated into terminal blocks, then temperature monitoring precision is improved, but manufacturing complexity increases
Solution Approach 1:
The terminal block is divided into modular recesses, each capable of independently housing a thermal conductor and temperature sensor assembly. This segmentation allows for standardized manufacturing of individual monitoring units that can be systematically installed in each terminal position.
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
Effectively prevents overheating by dynamically managing current flow and alerting users to potential issues, thereby reducing heat-related failures and improving safety and efficiency.
Implementation Method 1
one or more thermal conductors configured in size and shape to fit into one or more recesses of a DIN rail terminal block, and couple thermally with internal conductors of the terminal blocks
Implementation Method 2
Temperature sensors are in thermal contact with the thermal conductors, and convert the sensed temperatures to electrical properties, such as a voltage, a current, a resistance, and/ or an impedance
Data Source
Figure 1A~1B
Figure 1C~2A
Figure 2B~3A
AI summary
An apparatus having a conducting probe configured to couple with an electrical conductor of an electrical terminal. The apparatus has a sensor in contact with the conducting probe. The apparatus has a controller electrically coupled to the sensor, where the controller is configured to monitor the sensor values, and when the sensor values comply with a monitoring rule associated with a hazardous condition, the controller is configured to initiate an action to mitigate the hazardous condition.