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Arc-shaped multipole-moment electromagnetic emitter

An arc-shaped, transmitter technology, applied in the field of rotating electromagnetic transmitters, can solve the problems of low armature outlet speed and energy conversion efficiency, small magnetic coupling coefficient between drive coil and armature, and polygonal armature stress concentration, etc., to achieve Improve the energy conversion efficiency of the system, reduce the armature stress concentration phenomenon, and strengthen the effect of electromagnetic interaction

Inactive Publication Date: 2014-12-10
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

This will result in a smaller magnetic coupling coefficient between the drive coil and the armature, and lower armature exit velocity and energy conversion efficiency
In addition, there is a stress concentration phenomenon in the polygonal armature, and it is easy to deform when subjected to a large electromagnetic stress

Method used

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  • Arc-shaped multipole-moment electromagnetic emitter

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] figure 1 The illustrated embodiment is a three-stage hexapole rectangular arc-shaped electromagnetic transmitter. The drive coil 1 in this embodiment has three stages, and each stage of drive coil is composed of six arc-shaped coils, arranged into a complete six-pole rectangular ring. Configuration: The three-level drive coils extend sequentially along the moving direction of the armature, and each level of coil rotates 20 degrees around the axis compared with the upper level coil. Coils can be wound from copper wires or superconducting wires, and copper coils are used in this example. The invention can adjust the structure of the transmitter according to the launch requirements, that is, the number of stages of the transmitter is determined by the linear exit velocity of the armature, the number of pole pairs of the drive coil is determined by ...

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Abstract

The invention discloses an arc-shaped multipole-moment electromagnetic emitter which is mainly composed of driving coils, armatures, energy storage power sources and a control system. The driving coils are composed of a plurality of arc-shaped coils, and the driving coils at all levels are arranged in the motion direction of the armatures and rotate by a certain angle in sequence around the axis. The surfaces of the armatures are composed of a plurality of arc-shaped good conductors which are insulated, and the interiors of the armatures are supported by insulated rigid supports. The radial clearance between the armatures and the driving coils of the emitter is small, the system energy conversion efficiency is high, and the stress concentration effect of the armatures is not obvious. The emitter is mainly suitable for the large-mass object emitting field needing rotating stability.

Description

technical field [0001] The invention belongs to the field of electromagnetic emission, and relates to a rotating electromagnetic emission device with relatively high energy conversion efficiency. Background technique [0002] Chinese invention patent CN102192680A discloses a "rotating multipole moment field electromagnetic thruster". Its drive coil is a multipole moment coil that generates a radial magnetic field, and several drive coils form a polygonal drive module. Each level of drive module rotates at a certain angle relative to the previous level of drive module along the axis to form a rotating magnetic traveling wave in space. Therefore, the armature is simultaneously subjected to the axial acceleration force and the circumferential rotational moment during the movement, and can accelerate the movement stably. Compared with the traditional inductive electromagnetic launcher, it has the advantages of reasonable force structure, stable armature movement, and good launc...

Claims

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Application Information

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IPC IPC(8): F41B6/00
Inventor 王豫罗文博严仲明
Owner SOUTHWEST JIAOTONG UNIV
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