Field Control Device Cooling Body Heat Dissipation
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Solution Overview
Problem
High-voltage systems face reliability issues due to inadequate heat dissipation in electrical conductors and components, leading to increased temperatures and potential corona discharges, which are not effectively addressed by existing field control devices with limited outer surface areas and thin fastening rods.
Innovation Solution
A field control device with a cooling body connected in a heat-conducting manner to the electrical conductor, featuring a larger outer surface area than the shielding element, positioned within the weak-field region, utilizing a heat-conducting material like metal and potentially incorporating ribbed structures or heat pipes to enhance heat dissipation without altering field characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding element is used for field control, then the electric field distribution is improved and corona discharge risk is minimized, but the heat dissipation capability is insufficient due to limited outer surface area
Solution Approach 1:
The patent merges the field control function and heat dissipation function into a single integrated cooling body. The cooling body simultaneously serves as a shielding element for electric field control and as a heat sink with large outer surface area for effective heat dissipation, eliminating the need for separate components and resolving the contradiction between field control effectiveness and heat dissipation capability
Solution Approach 2:
The cooling body is designed to perform multiple functions: it provides electric field shielding and control, dissipates heat from the electrical conductor, and can also serve as a mechanical support structure. This multi-functionality allows the system to maintain reliable operation by addressing both field control and thermal management requirements with a single component
2Device complexity
If thin fastening rods are used to attach the shielding element, then the device complexity is reduced, but the heat dissipation capability remains inadequate
Solution Approach 1:
The patent combines the fastening function and heat dissipation function into the cooling body structure. The cooling body is directly attached to the electrical conductor and serves both as a mechanical support (replacing thin fastening rods) and as a heat dissipation component with large surface area, thereby improving heat dissipation without significantly increasing device complexity
3Temperature
If the outer surface area of the shielding element is increased to improve heat dissipation, then the heat dissipation capability is improved, but the field control characteristics may be altered
Solution Approach 1:
The cooling body is designed with differentiated local properties: the outer surface has large area for heat dissipation, while the inner portion in contact with the electrical conductor and the regions extending into the electric field maintain specific geometries for field control. This local differentiation allows simultaneous optimization of heat dissipation and field control characteristics
Solution Approach 2:
The cooling body replicates the effective field control geometry of traditional shielding elements while adding thermal management capabilities. By copying the proven shielding configuration and integrating it with heat dissipation features, the design maintains field control stability while improving thermal performance
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 solution effectively dissipates heat, minimizing the risk of partial discharges and maintaining field stability, thereby increasing the reliability of the high-voltage system while being cost-effective and simple to implement.
Implementation Method 1
a cooling body (7) which can be connected in a heat-conducting manner to the electrical conductor
Implementation Method 2
the outer surface area of the cooling body (7) is greater than an outer surface area of the shielding element (2, 3)
Data Source
AI summary
A field control device for a high-voltage system includes a shielding element for field control, which can be connected to an electrical conductor of the high-voltage system in an electrically conductive manner and, when connected to the conductor, at least partly delimits a weak-electric-field spatial region. A cooling body, which can be connected to the electrical conductor in a thermally conductive manner and which is disposed within the weak-field spatial region, has an outer surface area which is greater than an outer surface area of the shielding element. A high-voltage system having the field control device is also provided.