A superconducting motor using field-cooled superconducting permanent magnets

Abstract

The invention provides a superconducting motor adopting field cooling superconductive permanent magnets. The superconducting motor comprises a vacuum cover, a temperature control module, a heat conduction core, the superconductive permanent magnets, an armature and a magnetizing module. The heat conduction core is connected with the temperature control module, heat can be transferred between the heat conduction core and the temperature control module, the temperature control module is used for transferring the heat through the heat conduction core and then controlling the temperature of the superconductive permanent magnets; the superconductive permanent magnets at even number are evenly fixed to the heat conduction core in the circumferential direction; the armature and the heat conduction core are coaxially arranged and can rotate relatively in the axial direction; the heat conduction core and the armature are covered with the vacuum cover; the magnetizing module is arranged outside the vacuum cover. According to the superconducting motor adopting the field cooling superconductive permanent magnets, a field cooling magnetizing method is adopted, so powerful magnetic fields can be captured by the superconductive permanent magnets; in addition, the magnetic fields can be maintained without electric energy consumption. The superconductive permanent magnets can serve as stators or rotors of the motor. Compared with the prior art, the superconducting motor adopting the field cooling superconductive permanent magnets has the advantages that the performance is greatly improved and power consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of superconducting motors, in particular to a superconducting motor using a field-cooled superconducting permanent magnet. Background technique [0002] As is known in the industry, motors are driven to rotate through the interaction of electricity and magnetism. The higher the magnetic induction intensity of the magnet, the greater the driving force of the motor and the stronger the performance of the motor. For the permanent magnet motors in the prior art, ferrite or rare earth permanent magnets are generally used, and the maximum magnetic induction intensity thereof does not exceed 1.5T. The use of conventional magnets requires a large amount of electrical energy for excitation, which is eventually consumed in the form of heat. The use of pulse magnetized superconducting bulk magnets can solve the problem of power consumption, but its maximum captured magnetic field does not exceed 6T. The area density...

AI Technical Summary

Problems solved by technology

The surface density of the electromagnetic force is proportional to the square of the magnetic induction intensity. The above-mentioned motors need to use a power supply to maintain the magnetic field, and it is difficult to further increase the strength of the magnetic field.

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