Integrated Switching Module With Heat Dissipation Plate for DC Breakers
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Solution Overview
Problem
Electrical protection devices, such as circuit breakers, face challenges in rapidly interrupting strong currents in DC systems and efficiently dissipating heat, while maintaining compatibility with existing electromechanical installations and minimizing component count.
Innovation Solution
The development of an electrical protection system using semiconductor components, including power switches and an electronic control circuit, with heat dissipation plates connected to the power switches, allowing for compact design and efficient thermal management within a housing compatible with existing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If semiconductor power switches are used to rapidly interrupt strong currents in DC systems, then the reaction time and current interruption capability are improved, but the heat dissipation requirements increase and device complexity increases
Solution Approach 1:
The patent extracts the heat dissipation function from the main device body by using a dedicated heat dissipation plate that is thermally connected to the power switch but physically separable. This allows the heat management system to be optimized independently from the switching components.
Solution Approach 2:
The heat dissipation plate acts as an intermediary between the power switch and the external environment. It provides a dedicated thermal pathway that mediates the heat transfer from the semiconductor component to the housing, improving thermal management efficiency.
2Speed
If semiconductor components replace electromechanical components, then the current interruption speed is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent merges multiple functions into the housing structure: the housing serves as both the mechanical enclosure and the heat dissipation pathway. The heat dissipation plate is integrated into the housing, combining thermal management with structural support functions.
Solution Approach 2:
The housing is designed with multi-functionality, serving as both a mechanical protective structure and a thermal management system. The conductive material in the housing simultaneously provides structural integrity and heat dissipation pathways.
3Adaptability or versatility
If the device is designed to fit existing electromechanical housings, then the compatibility with existing installations is improved, but the space available for heat dissipation and component layout is constrained
Solution Approach 1:
The patent optimizes the internal space by arranging components in three-dimensional space efficiently. The heat dissipation plate is positioned to utilize available volume, and thermal pathways are routed through the housing structure to maximize heat dissipation within the constrained volume.
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 enables rapid current interruption and effective heat dissipation, reducing the need for semiconductor components and maintaining compatibility with existing installations, thus improving performance in DC systems.
Implementation Method 1
the or each power switch comprising a heat dissipation plate made of metal connected to an electrode of said power switch, said heat dissipation plate being thermally connected to the body of said power switch
Data Source
AI summary
An electrical protection system has a housing, connecting terminals, separable electrical contacts, a switching mechanism and at least one power switch connected in series with the separable electrical contacts. The system further includes an electronic control circuit coupled to the at least one power switch, the or each power switch has a metallic heat dissipation plate connected to an electrode of the power switch, the heat dissipation plate being thermally connected to the body of the power switch. The or each power switch is connected in series with the separable electrical contacts between the connecting terminals via a conductive plate connected to the heat dissipation plate of the respective power switch.