Support Insulator Structure for Busbar Vibration Isolation
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Solution Overview
Problem
Power conversion devices in electric railway vehicles experience vibration, leading to potential malfunction of current sensors and other electronic components attached to busbars, as existing solutions do not adequately address the vibration issue.
Innovation Solution
A support insulator is designed to reduce vibration by electrically connecting busbars and attaching electronic components, featuring a conductive member and insulating member that securely fasten to a fixed frame, thereby isolating the components from the housing and reducing vibration impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If current sensors are attached directly to busbars, then the device complexity is reduced, but the sensors receive larger vibration and may malfunction
Solution Approach 1:
The patent introduces a support insulator as an intermediary component between the busbar and the current sensor. This support insulator provides a stable mounting platform that reduces vibration transmission to the sensor, thereby improving reliability without adding significant structural complexity. The support insulator acts as a mediator that decouples the sensor from direct vibration exposure on the busbar.
2Ease of operation
If current sensors are attached to busbars distant from fixed points, then ease of installation is improved, but vibration reception increases
Solution Approach 1:
The support insulator serves as a mediator that can be installed at convenient locations on the busbar while providing vibration isolation. It allows flexible installation positions without directly transmitting busbar vibrations to the sensor, thus maintaining ease of installation while reducing harmful vibration effects.
3Reliability
If electronic components are rigidly fixed to reduce vibration, then reliability is improved, but adaptability decreases
Solution Approach 1:
The support insulator is designed as a universal mounting structure that can accommodate different types of electronic components (current sensors, other sensors, electronic devices) on different busbars. It provides reliable vibration reduction while maintaining design flexibility through its standardized yet adaptable structure, serving multiple functions across different application scenarios.
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 support insulator effectively reduces vibration received by electronic components, preventing malfunctions and allowing for the use of sensors with lower vibration resistance, thus enhancing product design flexibility and reliability.
Implementation Method 1
The insulating member is disposed over an outer surface of the conductive member to insulate the conductive member and the busbars from the fixed frame
Data Source
AI summary
A support insulator includes a conductive member, an insulating member, and an attachment portion. Busbars included in a main circuit are attachable to the conductive member. The conductive member electrically connects the busbars to each other. The insulating member is attachable to a fixed frame, and is disposed over an outer surface of the conductive member to insulate the conductive member and the busbars from the fixed frame. An electronic component included in the main circuit is attachable to the attachment portion.