Superconducting claw-pole motor

Abstract

The invention provides a superconducting claw-pole motor. A stator part comprises a hollow support shaft, n superconducting exciting winding supports and a Dewar structure, wherein the n superconducting exciting winding supports and the Dewar structure are fixed on the hollow support shaft, a superconducting exciting winding is arranged in each exciting winding support, and a refrigerant pipe and a superconducting outgoing line are arranged in the hollow support shaft; a rotor part comprises a rotor shaft and n rotor magnet yoke sets; and each rotor magnet yoke set comprises an A magnet yoke and a B magnet yoke, claw poles on the two magnet yokes are distributed in a staggered mode and oppositely buckled on the two sides of a corresponding superconducting exciting winding, and the rotor shaft and the n rotor magnet yoke sets can rotate synchronously around the central axis of the rotor shaft. Motors in different power levels can be implemented through expanding the diameters along the radial direction or increasing the number of superposed claw pole assemblies along the axial direction. According to the invention, under the premise of meeting the operation of superconducting motors, the superconducting claw-pole motor disclosed by the invention has the characteristics of simple structure, low cost, easy machining, direct power-supply connection of exciting windings, no carbon brush or induced circuit required, small weight and size, and the like, and improves the reliability and efficiency of systems.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a novel superconducting claw-pole motor. Background technique [0002] High-power superconducting motors are becoming more and more popular in ships, electric locomotives and other industries due to their advantages of high efficiency and energy saving, and their volume and weight are only 1 / 3 to 1 / 2 of traditional motors. A refrigerant circulation space and adiabatic structure are formed around the winding, which increases the complexity of the system. [0003] The mainstream of existing superconducting motors is the rotation of superconducting excitation windings. It is necessary to increase the rotary joint for transmitting refrigerant to meet the low-temperature working requirements of superconducting windings. At the same time, the power supply and detection signals of superconducting windings need slip rings or inductive transmission, resulting in complex system structures. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the superconducting excitation winding in the application of the existing superconducting motor rotates, it needs a supporting rotating joint for transmitting refrigerant, and a slip ring or an inductive transmission device for power supply and detection signal of the superconducting winding. A superconducting claw pole motor is provided, which eliminates the high-current feeding carbon brush and the rotary joint for transmitting refrigerant in the application, reduces the manufacturing cost, weight and volume of the motor, and improves the operating reliability and reliability of the motor. efficiency

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