High-temperature superconducting motor and low-temperature holding container thereof

Abstract

The invention discloses a high-temperature superconducting motor and a low-temperature holding container thereof. The low-temperature holding container comprises an outer cylinder and an inner cylinder, wherein the outer cylinder has a first accommodating cavity for accommodating the stator of the high-temperature superconducting motor and the inner cylinder; the inner cylinder has a second accommodating cavity for accommodating the rotor of the high-temperature superconducting motor rotor; the inner cylinder is disposed in the first accommodating cavity; the outer cylinder has openings at both ends and is in sealed connection with the inner cylinder through a sealing mechanism; and an annular region for accommodating the high-temperature superconducting motor between the inner cylinder and the outer cylinder is filled with a coolant. The rotor of the motor is arranged in the inner cylinder and the stator of the motor is arranged between the inner cylinder and the outer cylinder so asto ensure the high-speed rotation of the rotor of the motor. The outer cylinder is filled with the coolant for cooling, thereby satisfying requirements for high power density, high efficiency, simplecooling, and low cost, solving the problem that a conventional superconducting motor forces the low-temperature holding container to leak heat in order to transfer the stator electromagnetic force from the low-temperature holding container to the outside, and avoiding a danger that the low-temperature holding container is damaged by stress and deteriorates in heat insulating effect.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically relates to a high-temperature superconducting motor and a low-temperature holding container thereof. Background technique [0002] High temperature superconducting motors have the advantages of high reliability, high power density and high efficiency. Most of the traditional superconducting motors use superconducting coils or superconducting blocks to play the role of permanent magnets in the rotor structure. Centrifugal force causes the critical current of superconducting materials to drop, which affects the performance of superconducting motors. Due to the unique electrical characteristics of superconducting materials, superconducting materials must work in a very low temperature region to ensure their superconducting properties. Therefore, traditional superconducting motors usually have a cooling system at the rotor, and the cooling system at the rotor needs to ad...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a high-temperature superconducting motor capable of solving the problems of eddy current loss and excessive air gap caused by the use of a metal low-temperature holding container between the stator and rotor of the high-temperature superconducting motor, which will cause the performance of the motor to decrease, and the electromagnetic force of the stator cannot be effectively transmitted. its cryogenic container

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