Inductive Isolator Module for High-Voltage Power and Data Transfer
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Solution Overview
Problem
Existing railway electrification systems face challenges in efficiently transferring and isolating power and data between high and low-voltage potential systems, particularly in providing power and data transmission in high-voltage environments, such as those encountered in high-speed and high-voltage environments, such as those encountered in railway electrification systems, particularly in addressing the challenges of railway electrification and, specifically in providing railway electrification systems, including the efficient transfer of power and data inductively across high-voltage insulators.
Innovation Solution
A system utilizing a primary isolator module with a core rod and sheds to maintain electrical isolation while inductively transferring power and data across high-voltage environments, employing a primary transmitter and receiver inductors to couple power and data signals through a primary insulation barrier, and incorporating sensor modules for data interpretation and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional direct electrical connection is used to transfer power between high and low voltage systems, then power transfer efficiency is high, but electrical isolation and safety are compromised
Solution Approach 1:
The patent replaces direct mechanical/electrical connection with inductive coupling using magnetic fields. The primary inductor generates a magnetic field that couples with the secondary inductor to transfer power without direct electrical contact, eliminating the need for physical connection while maintaining efficiency through magnetic coupling.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary medium between high and low voltage systems. The primary inductor converts electrical energy to magnetic field energy, which then induces electrical energy in the secondary inductor, serving as a safe intermediary that provides electrical isolation while enabling power transfer.
2Reliability
If inductive coupling is used to transfer power across insulation barriers, then electrical isolation is maintained, but power transfer efficiency decreases
Solution Approach 1:
The patent applies local quality by concentrating magnetic flux in specific regions using magnetic circuits and cores. The magnetic path is optimized locally around the inductors to maximize coupling efficiency, while the overall system maintains electrical isolation through the insulation barrier.
Solution Approach 2:
The patent optimizes inductive power transfer by adjusting parameters such as inductor geometry, winding configurations, magnetic core materials, and operating frequencies. These parameter changes enhance the coupling coefficient and reduce losses, improving power transfer capability while maintaining isolation.
3Reliability
If complex insulation barriers are used to maintain high voltage isolation, then safety is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the inductor assembly, which simultaneously provides power transfer, electrical isolation, and magnetic coupling. The insulating barrier is designed as part of the inductor structure itself, eliminating the need for separate insulation components and reducing overall system complexity.
Solution Approach 2:
The patent merges the insulation barrier with the inductor housing and magnetic circuit components. The insulating material serves dual purposes as both electrical isolation and structural support, combining previously separate functions into a unified component that reduces complexity.
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
Enables efficient and isolated power transfer from low-voltage to high-voltage environments, maintaining electrical isolation and facilitating data communication, thereby supporting reliable operation of sensors and communication modules in high-voltage railway systems.
Implementation Method 1
a primary transmitter inductor configured to receive the alternating power signal; and a primary receiver inductor arranged opposite and offset from the primary transmitter inductor by a primary insulation barrier and configured to inductively couple to the primary transmitter inductor
Implementation Method 2
a primary isolator module with a core rod and sheds to maintain electrical isolation while inductively transferring power and data across high-voltage environments
Data Source
AI summary
A system includes an isolator module including: core rod; a transmitter inductor; a receiver inductor; and sheds. The core rod includes: an input blind bore; an output blind bore; and an insulation barrier interposed between the input blind bore and the output blind bore. The transmitter inductor: is configured to receive a first power signal from an input power supply; and arranged on a first base of the input blind bore across the insulation barrier. The receiver inductor: is arranged on a second base, offset first base, of the output blind bore across the insulation barrier; configured to inductively couple to the transmitter inductor; and configured to output a second power signal approximating the first power signal, to a sensor module. The set of sheds: are arranged about the core rod; and cooperating with the insulation barrier to electrically isolate the input power supply from the sensor module floating.