A Cascaded Axial Excited Switched Reluctance Motor

Abstract

The invention provides a cascaded axial excitation switch reluctance motor, and relates to the technical field of motor. The cascaded axial excitation switch reluctance motor is characterized in that a rotor is provided with a plurality of strip-shaped rotor silicon steel plate superposition bodies, the length direction of the rotor silicon steel plate superposition bodies is consistent with the axial direction of a rotor shaft, the rotor silicon steel plate superposition bodies are provided with lug portions extending along the diameter direction of the rotor shaft, and a stator is connected with annular stator coils at positions corresponding to the lug portions. The cascaded axial excitation switch reluctance motor solves the technical problem that in the prior art, a switch reluctance motor has large torque pulsation during an operating process, then a housing radially deforms and noise is generated. The cascaded axial excitation switch reluctance motor has the beneficial effects that: due to axial excitation, stress is uniformly distributed along the circumference, thus torque pulsation is reduced, the housing of the stator does not deform, and vibration and noise during operation also can be reduced; a part of a magnetic line passing through an air gap is parallel with the rotor shaft, thus high excitation efficiency is achieved; the number of the stator coils is low, thus manufacturing process is simple, cost is saved, and production efficiency is improved; through different combinations of the stator and the rotor, motors with different phases can be obtained, thus practicability and convenience are achieved.

Description

Technical field [0001] The invention relates to the technical field of motors, in particular to an excitation switched reluctance motor structure. Background technique [0002] Switched reluctance motors are widely used because of their simple and firm structure, wide speed range, excellent speed control performance, and high efficiency in the entire speed range. Due to the small number of pole pairs in the traditional structure of the switched reluctance motor and the non-linear relationship between the output torque and the angle, the torque ripple is relatively large during operation. When the winding is energized to attract the rotor, the energized stator pole pair will bear a high radial force, which will cause a slight radial deformation of the shell, and the deformation will elastically recover when the winding is de-energized. During the operation of the motor, since the windings are continuously switched on and off, the housing will produce corresponding deformation, re...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the torque pulsation of the switched reluctance motor causes radial deformation of the housing during the operation of the prior art and thus generates noise, the present invention provides a stator and housing that will not deform and reduce operating vibration and noise cascaded axially excited switched reluctance motor

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