Double-stator cup type rotor motor

Abstract

The double-stator cup type rotor motor is characterized by comprising an outer stator, an inner stator and a hollow cup type rotor, wherein the outer stator comprises an outer stator iron core and an outer stator winding; the inner stator comprises an inner stator iron core; the outer stator iron core, the inner stator iron core and the hollow cup type rotor are all of an annular structure and are coaxially arranged in a sleeved mode; the hollow cup type rotor is arranged between the outer stator iron core and the inner stator iron core; and the outer stator winding is uniformly arranged on the surface of the inner wall of the outer stator core. The double-stator cup type rotor motor solves the problems that the torque requirement is large, and the mechanical inertia requirement of the rotor is low.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a double-stator cup-type rotor motor. Background technique [0002] The motor is a device that realizes the conversion between mechanical energy and electrical energy. It operates as a generator when converting mechanical energy into electrical energy, and operates as a motor when converting electrical energy into mechanical energy. The form of motion for electromechanical energy conversion is rotary motion. Motors have penetrated into all aspects of production and life, such as various squirrel cage or wound induction motors for lifting equipment, various salient pole and hidden pole synchronous generators for hydropower or thermal power plants, and electric vehicles. Various permanent magnet motors, etc. Without the wide application of motors, there would be no high efficiency of modern production and no high convenience of contemporary life. [0003] The rotor of...

AI Technical Summary

Problems solved by technology

The above structure leads to a relatively large mechanical inertia of the rotor, and the torque density per unit moment of inertia is usually difficult to exceed 400rad / s^2, generally in the range of 30~300rad / s^2

[0004] The utility model patent CN 206023523 U discloses a hollow rotor cup asynchronous tachogenerator. The excitation winding and the output winding are arranged on the inner stator. There are notches on the outer stator. The notches are aligned with the output windings of the inner stator to alleviate the traditional The problem of high residual voltage in hollow cup rotor asynchronous tachogenerator

[0007] In the object disclosed in the above-mentioned patent, the hollow rotor is not only equipped with conductor loops or permanent magnets carrying current, but also has an iron core made of magnetically permeable material as a magnetic field path, so that the mechanical inertia of the rotor is relatively large, and there is no internal fixed However, the torque density is still not high enough

Images