Superconducting Cable Terminal Sliding Support
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Solution Overview
Problem
Existing superconducting cable terminal connection devices face challenges in providing a mechanically stable support structure that allows for smooth heat expansion and contraction of horizontal conductors while supporting their weight, leading to structural complexity and the need for additional support members.
Innovation Solution
A superconducting cable terminal connection device with a vertical conductor that supports the weight of a horizontal conductor through a slidable connection, where the horizontal conductor is inserted into a through-hole of the vertical conductor, allowing for lengthwise movement and unified support of both the conductor and the electric field relaxation shield, using a flexible electrical conduction member and an insulator with low heat shrinkage and frictional resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate structural members are used to support the horizontal conductor and the electric field relaxation shield, then the support functions are achieved, but the device complexity increases and manufacturing becomes difficult
Solution Approach 1:
The patent combines the support function for both the horizontal conductor and the electric field relaxation shield into a single integrated structural member. This vertical member simultaneously supports the horizontal conductor at its upper portion and the electric field relaxation shield at its lower portion, eliminating the need for separate support structures and simplifying the overall device architecture.
Solution Approach 2:
The vertical structural member is designed to perform multiple functions: it serves as a support for the horizontal conductor, a support for the electric field relaxation shield, and provides a through-hole for the sliding connection. This multi-functional design reduces the total number of components needed in the system.
2Stability of the object's composition
If a fixed rigid connection is used between the horizontal conductor and the support structure, then mechanical stability is achieved, but heat expansion and contraction cannot occur smoothly
Solution Approach 1:
The patent implements a dynamic connection system where the horizontal conductor can slide vertically within the through-hole of the vertical structural member. This sliding mechanism allows the horizontal conductor to move freely in response to thermal expansion and contraction while maintaining mechanical support, thus accommodating dynamic thermal effects without compromising structural stability.
Solution Approach 2:
The vertical structural member acts as an intermediary between the horizontal conductor and the fixed support structure. By providing a through-hole that allows sliding movement, it mediates between the need for mechanical support and the need for thermal movement accommodation, enabling both functions to coexist.
3Adaptability or versatility
If additional support members are added to allow heat expansion and contraction, then thermal adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent integrates the heat expansion accommodation function directly into the existing vertical structural member by providing a through-hole for sliding connection. This eliminates the need for additional separate support members or complex expansion joints, as the same structural member that provides support also enables thermal movement.
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 provides a structurally simple and mechanically stable connection that minimizes mechanical stress during heat expansion and contraction, eliminates the need for additional support members, and ensures effective insulation and electrical connectivity.
Implementation Method 1
heat expansion and contraction of the horizontal conductor in a lengthwise direction
Implementation Method 2
an insulator which coats an outer periphery of the horizontal conductor
Implementation Method 3
a flexible electrical conduction member which electrically connects an end portion of the horizontal conductor to the vertical conductor
Data Source
AI summary
A superconducting cable terminal connection device connecting a terminal of a superconducting cable for power transmission to an external power system, includes: an electric field relaxation shield disposed inside an insulation housing; a horizontal conductor fixed to an end portion of a core of the superconducting cable drawn into the electric field relaxation shield; an insulator which coats an outer periphery of the horizontal conductor; a vertical conductor which is drawn into the electric field relaxation shield and has a through-hole through which the horizontal conductor and the insulator pass so as to be slidable in a lengthwise direction; and a flexible electrical conduction member which electrically connects an end portion of the horizontal conductor to the vertical conductor.