Thermal Tube Insulation for Electrical Component Heat Dissipation
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Solution Overview
Problem
Existing electrical components, such as medium-voltage switchgear and high-voltage interrupters, face a challenge in balancing electrical conductivity and thermal conductivity, as good electrical conductors are also good thermal conductors, leading to high thermal loads on insulators and inefficient heat dissipation.
Innovation Solution
Incorporating a thermal tube surrounded by insulation, where the tube protrudes closer to the conductive central element, allowing for efficient heat transfer and dissipation using a heat exchanger principle, reducing thermal stress on the insulation and enabling simpler designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If good electrical conductors are used for current-carrying components, then electrical conductivity is improved, but thermal conductivity increases leading to high thermal loads on insulators
Solution Approach 1:
The patent divides the thermal management function into separate components: the electrical insulation material maintains electrical isolation while dedicated thermal conduction elements (metal inserts, heat sinks, cooling channels) handle heat dissipation. This segmentation allows optimization of electrical and thermal properties independently.
Solution Approach 2:
The patent introduces intermediary thermal conduction elements (metal inserts, heat sinks, cooling channels) between the current-carrying components and the environment. These intermediaries facilitate efficient heat transfer without compromising electrical insulation, as they are positioned to conduct heat away from critical areas while the insulation material maintains electrical isolation.
2Temperature
If thermal conductivity of insulation material is increased to improve heat dissipation, then thermal management is improved, but electrical insulation performance deteriorates
Solution Approach 1:
The patent separates the thermal conduction function from the electrical insulation function by using distinct materials and structures. The insulation material maintains its electrical properties while thermal conduction is achieved through dedicated pathways (metal inserts, heat sinks, cooling channels), allowing independent optimization of both functions.
Solution Approach 2:
The patent employs composite structures combining materials with different properties: electrically insulating materials with thermally conductive additives or embedded elements. This creates a composite system where the insulation material provides electrical isolation while the conductive components enable efficient heat dissipation.
3Temperature
If conventional cooling measures are implemented, then heat dissipation is improved, but device complexity and production costs increase
Solution Approach 1:
The patent merges the electrical insulation housing with thermal management functions by integrating heat sinks, cooling channels, or thermally conductive elements directly into the insulation structure. This consolidation eliminates separate cooling components and simplifies the overall device architecture while maintaining effective heat dissipation.
Solution Approach 2:
The patent designs the electrical insulation material to serve multiple functions: providing electrical isolation, structural support, and thermal conduction pathways. By making the insulation housing multi-functional, the patent eliminates the need for separate dedicated cooling components, reducing device complexity and production costs.
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 enhances heat dissipation from the central element, reducing thermal stress on the insulation and production costs, while maintaining effective electrical insulation, by utilizing thermal tubes with significantly lower thermal resistance than metals, allowing for deeper heat penetration and shorter heat transfer paths.
Implementation Method 1
a thermal tube is provided, which thermal tube is surrounded by the insulation at least at one end and partially protrudes out of the insulation
Implementation Method 2
allowing for efficient heat transfer and dissipation using a heat exchanger principle
Data Source
AI summary
An electrical component may include an electrically conductive element and electrical insulation that at least partially surrounds the element and without contact. A heat pipe may be surrounded by the insulation at least at one end and may partially protrude from the insulation, wherein the part of the heat pipe protruding from the insulation protrudes closer to the central element than the insulation.