Linear motor structure and magnetic suspension train

Abstract

The invention discloses a linear motor structure and a magnetic suspension train. The linear motor structure comprises a rotor (1) and a hollow stator (3), and a stator winding (2) arranged at the yoke of the hollow stator (3), wherein a tooth magnetic conductive material (4) is arranged at a tooth part of the hollow stator (3), and/or, and a yoke magnetic conductive material (5) is arranged at the yoke of the hollow stator (3). In the prior art, a permanent magnetic drive motor with an iron core has too large normal force when being used in the magnetic suspension train, a permanent magneticdrive motor without an iron core has too small normal force, but the two motors consumes higher power. The invention solves the problem in the prior art and saves energy.

Description

technical field [0001] The invention belongs to the technical field of magnetic suspension, and in particular relates to a linear motor structure and a magnetic suspension train, in particular to a linear motor with adjustable normal force and a magnetic suspension train with the linear motor with adjustable normal force. Background technique [0002] With the rapid development of maglev trains in high-speed rail transit, the requirements for their driving motors are also getting higher and higher. The motor solutions of various countries in the world are mainly concentrated in permanent magnet synchronous and AC asynchronous linear motors. Considering the energy Due to the limitations of power consumption and maximum speed, permanent magnet linear motors are increasingly favored by the industry. [0003] Most of the existing permanent magnet drive motors used for maglev trains have an iron core structure, which will cause the normal suction force of the motor to be large an...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a linear motor structure and a magnetic levitation train in view of the above defects, so as to solve the problem of the motor used for the magnetic levitation train in the prior art. When there is an iron core, the normal suction of the motor cannot become an available When there is no iron core, the suction force between the stator and the mover is very small, and there is a problem that the magnetic resistance is too large and the energy consumption is increased, so as to reduce the magnetic resistance and save energy consumption.

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