SSCB Heat Sink Using TC/EI Plastic for Panel Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Solid-state circuit breakers (SSCBs) produce more heat than conventional circuit breakers, posing a challenge for minimizing temperature rise, especially when installed in existing electrical panels designed for conventional breakers.
Innovation Solution
A heat sink using thermally conductive and electrically insulating (TC/EI) plastic is integrated into the solid-state circuit breaker, interfacing with natural air currents inside the electrical panel to enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solid-state circuit breakers are installed in existing electrical panels, then the advantages of SSCBs (no electric arc, faster switching, longer life) are achieved, but the temperature rise of SSCBs increases due to additional heat production
Solution Approach 1:
A heat sink is introduced as an intermediary component between the SSCB and the electrical panel structure. The heat sink absorbs excess heat from the SSCB and transfers it to the surrounding air through convection and radiation, preventing temperature buildup that would otherwise limit the SSCB's switching life.
Solution Approach 2:
The heat dissipation function is extracted from the SSCB itself and transferred to a separate heat sink component. This allows the SSCB to focus on its primary function of circuit protection while the heat sink handles thermal management, resolving the temperature rise issue without compromising switching life.
2Adaptability or versatility
If conventional circuit breaker designs are used, then compatibility with existing panels is maintained, but heat dissipation efficiency is insufficient for SSCBs
Solution Approach 1:
The heat sink is designed to perform multiple functions: it serves as a thermal management component for the SSCB, attaches to the existing electrical panel structure for mechanical support, and utilizes the panel's natural air flow paths for passive cooling. This multi-functionality maintains panel compatibility while significantly improving heat dissipation efficiency.
Solution Approach 2:
The heat sink utilizes natural convection currents within the electrical panel to dissipate heat without requiring external fans or active cooling systems. The design leverages the existing air flow environment of the panel, allowing the SSCB system to self-regulate temperature passively.
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 heat sink effectively reduces the temperature rise of SSCBs, allowing them to be compatible with existing production panels and improving the dissipation of heat, thereby enhancing the usability and safety of SSCBs in electrical panels.
Implementation Method 1
a heat sink that interfaces with and takes advantage of existing air currents inside the electrical panel
Implementation Method 2
The heat sink contains a thermally conductive and electrically insulating (TC/EI) plastic
Data Source
AI summary
A solid-state circuit breaker (SSCB) includes an airgap operating mechanism including components and electronics including semiconductors and software algorithms that control the power and can interrupt extreme currents. The SSCB further includes a housing that houses the components of the airgap operating mechanism and the electronics. The housing of the solid-state circuit breaker includes a heat sink that interfaces with a natural air flow such as an existing vertical air channel inside an electrical panel. The heat sink contains a thermally conductive and electrically insulating (TC/EI) plastic.