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Electric magnetic suspension conductive board track

A conductive plate and magnetic levitation technology, which is applied in the direction of electric vehicles, track devices, electric traction, etc., can solve the problems of increasing system running resistance and energy loss, so as to increase the ratio of buoyant resistance, reduce electromagnetic resistance, and weaken harmful eddy currents. Effect

Inactive Publication Date: 2006-12-20
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The eddy currents in the conductive plate are distributed in three-dimensional space, and the eddy currents distributed in the cross section are harmful eddy currents, which increase the resistance and energy loss of the system operation

Method used

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  • Electric magnetic suspension conductive board track
  • Electric magnetic suspension conductive board track
  • Electric magnetic suspension conductive board track

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing.

[0012] Such as figure 1 As shown, when the magnet 1 moves relative to the conductive plate 2, the spatial magnetic field B changes, and according to the law of electromagnetic induction, a spatial electric field E is generated, and

[0013] ▿ × E = - ∂ B ∂ t . . . ( 2 )

[0014] where t is time. The inner circuit of the conductor forms an eddy current J, and there is a Lorentz force J×B between it and the magnetic field B of the magnet. According to Lenz's law, the magnetic flux of the induced current resists the change of the original magnetic flux. It can be seen that when the magnet moves, the magnetic flux changes in the XY plane to genera...

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Abstract

An electric conducting plate type electric magneto-levitation track features that its electric conducting plate is a multi-layer structure of conductor and an insulating material is arranged between adjacent electric conducting layers. The thickness of each layer is determined by an invented equation. It can decrease the harmful eddy in conductor and the electromagnetic resistance to running.

Description

technical field [0001] The invention relates to an electric magnetic levitation conductive plate track, which belongs to the field of electric magnetic levitation. Background technique [0002] Electric conductive plate guide rail maglev transportation system is one of the advanced surface high-speed transportation technologies at present, but its relatively large electromagnetic resistance is one of the main unfavorable factors hindering the practical application of this technology. [0003] Such as figure 1 As shown, 2 in the figure is a single-layer conductive plate, and its cross section is a whole. When the magnet 1 with the magnetic field B runs at a speed v above the conductive plate, an eddy current J is generated in the conductive plate, and then an interaction force of J×B is generated, which actually manifests as levitation force and electromagnetic resistance. The eddy currents in the conductive plate are distributed in three-dimensional space, and the eddy cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L13/04B60M7/00
Inventor 王厚生金能强
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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