Thermal Isolation Screen for Electromagnetic Inductor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thermal insulation screens for electromagnetic inductors face challenges in providing effective thermal protection without increasing the thickness of the insulating material or reducing the spacing between cooled tubes, leading to increased thermal losses and risk of support overheating due to induced currents and magnetic field interactions.
Innovation Solution
Incorporating conductive means behind the thermally insulating blocks that are in thermal connection with cooled metal tubes to intercept and evacuate heat, while also using slots in the conductive means to minimize induced currents, such as metal fins or wire sections, to effectively manage heat flow and reduce parasitic heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the thickness of the insulating material is increased to protect the support from heat, then thermal protection is improved, but the overall device thickness increases and energy efficiency decreases
Solution Approach 1:
The patent introduces conductive means (metal fins or plates) as intermediary elements positioned between the insulating blocks and the cooled tubes. These conductive means serve as thermal bridges that efficiently transfer heat from the insulating blocks to the cooled tubes, enabling effective heat evacuation without requiring increased insulating material thickness. The conductive means act as a mediator that resolves the contradiction by providing a high-efficiency thermal transfer path.
Solution Approach 2:
The patent changes the thermal conduction parameter by introducing metal conductive means with high thermal conductivity. Instead of relying solely on increasing the thickness of insulating material (which would increase overall dimension), the solution switches to using materials with superior thermal conduction properties. This parameter change allows efficient heat transfer through thinner overall structures while maintaining thermal protection.
2Temperature
If the spacing between cooled tubes is reduced to improve thermal protection, then heat evacuation is improved, but thermal losses increase due to enhanced magnetic field interactions
Solution Approach 1:
The conductive means serve as an intermediary that decouples the relationship between tube spacing and thermal protection. By providing an additional thermal transfer path through the conductive means, the system can maintain effective heat evacuation even with larger tube spacing, thereby reducing magnetic field interactions and thermal losses while still achieving adequate thermal protection.
Solution Approach 2:
The thermal management system is segmented into multiple functional components: insulating blocks for thermal isolation, cooled tubes for heat evacuation, and conductive means for thermal bridging. This segmentation allows each component to optimize its function independently, enabling the system to achieve both effective heat evacuation and minimized thermal losses without compromising either aspect.
3Temperature
If the spacing between cooled tubes is reduced to protect the support, then thermal protection is improved, but the manufacturing complexity increases due to tube bending constraints
Solution Approach 1:
The conductive means act as an intermediary that reduces the dependency on tight tube spacing for effective thermal protection. This allows tubes to be spaced farther apart, which simplifies the bending process and reduces manufacturing complexity while still achieving adequate support temperature protection through the combined action of insulating blocks and conductive thermal bridges.
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 provides enhanced thermal protection for the support without increasing the thickness of the insulating layer or altering the tube spacing, effectively managing heat flow and minimizing induced currents to maintain energy efficiency and prevent overheating.
Implementation Method 1
a plurality of metal tubes cooled by the circulation of a fluid, these tubes being trapped in the said matrix of blocks
Implementation Method 2
conductive means of the heat are provided behind the blocks, these conductive means being in thermal connection with the cooled tubes, said heat conducting means intercepting the heat flow which passes through the blocks and evacuating it to the cooled tubes
Implementation Method 3
metal tubes cooled by the circulation of a fluid
Implementation Method 4
an electromagnetic inductor with a transverse or pseudo-transverse field
Implementation Method 5
a device for heating by electromagnetic induction a continuously moving metal strip
Implementation Method 6
thermal insulation screen transparent to the magnetic flux and cooled intended to isolate an electromagnetic inductor with a transverse or pseudo-transverse field, from the radiation of a heated product
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
Thermal isolation screen transparent to the magnetic flux, intended to isolate a transverse-field or pseudo-transverse-field electromagnetic inductor from the radiation from a heated product (1), the thermal screen being composed of a matrix of blocks (7) made of thermally insulating material and of a plurality of tubes (8) cooled by the circulation of a fluid, these tubes being imprisoned in said matrix of blocks, the tubes and blocks being held in place on a support. The screen comprises, on the rear of the blocks, heat-conducting means (10) placed so as to intercept the heat flux passing through the blocks, these conducting means being thermally coupled to the cooled tubes (8) in order to discharge the heat flux into the tubes.