Maglev Track Switch Using Lorentz Force for Moving-Part-Free Routing
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Solution Overview
Problem
Existing magnetic levitation train systems require mechanical switches with moving parts to change track segments, which can be complex and prone to mechanical failures.
Innovation Solution
A switch system for magnetically suspended vehicles that uses elongate track segments and a track selection module with conductors oriented parallel to the track length, allowing for sideways movement and track switching without moving parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical switches with moving parts are used for track switching, then track switching functionality is achieved, but device complexity and reliability deteriorate due to mechanical movement components
Solution Approach 1:
The patent replaces the mechanical switching system with an electromagnetic system. Conductors are embedded in the track segments to generate magnetic fields that interact with magnets on the vehicle, enabling track selection without any moving parts. This substitution eliminates mechanical wear and failure modes while achieving the same track switching functionality through electromagnetic forces.
Solution Approach 2:
The invention extracts and removes the moving parts from the switching mechanism. Instead of having mechanical components that physically move to change track segments, the solution uses stationary conductors embedded in the track that generate magnetic fields to guide the vehicle onto different track segments, completely eliminating the need for mechanical movement in the switching system.
2Adaptability or versatility
If conductors are placed parallel to the track length for sideways movement, then track switching capability is improved, but conventional perpendicular winding arrangement must be changed
Solution Approach 1:
The patent changes the dimensional orientation of the conductors from the conventional perpendicular arrangement (across the track width) to a parallel arrangement (along the track length). This dimensional change enables the generation of magnetic fields that produce lateral forces for sideways movement and track switching, while the conductors remain integrated into the track structure without adding significant structural 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 reliable track switching at high speeds, reducing mechanical complexity and potential failures, while maintaining the benefits of magnetic levitation technology.
Implementation Method 1
By providing conductors parallel to the length of the track, a sideway movement may be effectuated, by means of which the switching functionality may be provided
Implementation Method 2
In the switch, the track segments comprise a ferromagnetic material
Data Source
Figure 1~2A
Figure 2B~3
Figure 4~5
AI summary
A switch is presented for a magnetically suspended or at least guided vehicle. The switch comprises a fork from a first track segment to a second and third track segment. An elongate conductive module, for example a conductive wire is provided along at least the first track segment and optionally along the second and third track segment. The conductive module comprises conductor segments that guide a current with a directional component substantially parallel the length of the track, at a first surface of the track. With an electromagnet provided on a carriage having a pole directed to the first surface of the track, a Lorentz force may be provided for urging the carriage in a direction perpendicular to the length of the track. This allows a carriage moving along the first track segment to be urged towards the second or third track segment at the other side of the fork.