Torque conducting structure for superconducting motor

Abstract

The invention discloses a torque conducting structure for a superconducting motor. The torque conducting structure comprises a first ring connected with a superconducting coil end surface in a low temperature state, a second ring connected with a shaft end of the motor in a normal temperature state as well as an annular torque conducting part connecting the first ring with the second ring, wherein the annular torque conducting part is composed of multiple annular conducting pieces and multiple arc connecting pieces, and the annular conducting pieces are concentrically arranged between the first ring and the second ring and are distributed along a radial direction in an interval manner; the arc connecting pieces are arranged in the gap of each annular conducting piece along the circumference and are alternately distributed in a staggered manner; a heat flux flows along the circumference of the annular conducting pieces connected with the arc connecting pieces after passing through the arc connecting pieces from the second ring, and continues to flow along the circumference after sequentially entering the next adjacent annular conducting pieces via the next arc connecting piece. The torque conducting structure provided by the invention has the advantages that the annular circumference length is utilized to prolong a heat transfer path, so that the heat transfer effect is reduced, and the electromagnetic force between a stator and a rotor of the motor can be borne, thus the requirement of the superconducting motor is preferably met.

Description

technical field [0001] The invention belongs to the technical field of low-temperature transmission, and more specifically relates to a torque conduction structure for a superconducting motor. Background technique [0002] The air-gap magnetic field of conventional motors is at a low level due to the limitation of permanent magnet material remanence or copper conductor current carrying capacity. In view of the fact that the current-carrying capacity of superconducting materials is much stronger than that of copper conductors, and the magnetic field generated may exceed 10 Tesla, attempts have been made at home and abroad to replace permanent magnets or copper coils in conventional motors with coils wound with superconducting materials. Constituting a superconducting motor, its air gap flux density and winding current density can be increased several times or even dozens of times compared with conventional motors, and the performance of the motor has been improved in a breakt...

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a torque conduction structure for superconducting motors, the purpose of which is to increase the length of the heat transfer path by utilizing the circumferential length of the torque conduction structure, thereby effectively reducing the torque The heat leakage of the conduction structure solves the technical problem of high heat leakage and poor heat insulation effect in the existing torque conduction structure, and is especially suitable for applications with large electromagnetic forces such as direct drive motors

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