An inner rotor unipolar motor and motor equipment

Abstract

The invention belongs to the field of permanent magnet motors and provides an inner rotor unipolar motor and motor equipment. Among them, an inner rotor unipolar motor includes an inner rotor and a stator, the inner rotor is provided with a magnetic monopole structure, the stator is provided with an armature winding, and the current flow in the armature winding is in line with the magnetic monopole structure. Due to the special rotor structure and magnetic pole installation position of the new type of unipolar motor, the coil sides of the armature winding close to and far from the rotor are subjected to the same direction of electromagnetic force to increase the torque density of the motor. It effectively solves the problems of small torque and low efficiency caused by the ineffective winding of traditional unipolar motors, and greatly improves the power torque density and efficiency of the motor, which is of great significance to the development of unipolar motors.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, in particular to an inner rotor unipolar motor and motor equipment. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] After Faraday revealed the phenomenon of electromagnetic induction, unipolar motors gradually began a century-long development process. After the 1960s, due to the rapid development of superconducting materials and technologies, the application and development of unipolar motors also made some progress. , especially in the development of using superconducting materials as excitation windings and current collection methods, but no substantial breakthrough has been made, and its application is limited to some special occasions. Moreover, the high price of superconducting materials and the need for a relatively harsh working environment greatl...

AI Technical Summary

Problems solved by technology

[0003] After Faraday revealed the phenomenon of electromagnetic induction, unipolar motors gradually began a century-long development process. After the 1960s, due to the rapid development of superconducting materials and technologies, the application and development of unipolar motors also made some progress. , especially in the development of using superconducting materials as excitation windings and current collection methods, but no substantial breakthrough has been made, and its application is limited to some special occasions

Moreover, the high price of superconducting materials and the need for a relatively harsh working environment greatly increase the cost of superconducting unipolar motors, further limiting its development and application

Regardless of whether the traditional unipolar motor is used as a motor or a generator, it needs or generates a large current, which can generally reach hundreds of amps, thousands of amps, or even tens of thousands of amps, so it brings a series of large losses, low efficiency, and high temperature. Problems such as serious lifting problems that cannot be ignored limit the application of unipolar motors

Moreover, the traditional unipolar motor has an invalid winding side in the structural setting, so that the effective torque of the motor is partially offset, and the armature winding cannot be fully utilized to achieve effective superposition of torque, and the electromagnetic torque performance is extremely poor

[0004] Although some researchers have proposed improvements to the form of traditional unipolar motors, the inventors have found that the rotors of these motors are implemented with traditional cylindrical rotors, which still cannot effectively solve the structural defects of traditional unipolar motors, and are ineffective. Coil side issues still exist

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