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High-efficiency and large-torque disk type switching magnetoresistive motor

A switched reluctance motor, high torque technology, applied in the magnetic circuit static parts, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc. , winding commutation difficulties, etc., to achieve the effect of reducing inter-pole flux leakage and winding inductance, improving motor running torque, and reducing motor loss

Inactive Publication Date: 2012-07-04
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, due to the double-convex structure and switching power supply, traditional switched reluctance motors have inherent disadvantages of torque ripple, which is the main cause of noise problems in switched reluctance motors.
Traditional axial magnetic disc switched reluctance motors have problems such as large torque pulsation, high vibration and noise. At the same time, due to the serious magnetic flux leakage between the stator and rotor poles, the winding inductance is increased, which makes the corresponding speed of current control slow, especially at high speeds. When , the winding commutation is difficult, making it difficult for the current to reach the target value

Method used

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  • High-efficiency and large-torque disk type switching magnetoresistive motor
  • High-efficiency and large-torque disk type switching magnetoresistive motor
  • High-efficiency and large-torque disk type switching magnetoresistive motor

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Embodiment Construction

[0036] Hereinafter, the present invention takes a 12 / 8-pole axial magnetic field disc switched reluctance motor as an example to provide a specific implementation mode of the present invention.

[0037] See attached Image 6 , a high-efficiency, high-torque disc-type switched reluctance motor, including a stator 10 and a rotor 20 fixed by a rotating shaft 21, that is, the internal structure of the motor is a structure with a single stator and a single rotor on the same steel shaft, so Both the stator 10 and the rotor 20 are in the shape of a yoke disc ring, and both include a disc and an iron core formed on the disc, that is to say, the stator 10 includes a stator disc 11 and an iron core formed on the disc. The stator tooth core 13 on the disk 11 , the rotor 20 includes a rotor disk 23 and the rotor tooth core 13 formed on the rotor disk 22 . The iron core 13 of the stator 20 is wound with a stator winding 12 . Also see attached Figure 7 And attached Figure 8 , The iron c...

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Abstract

The invention provides a high-efficiency and large-torque disk type switching magnetoresistive motor. The motor comprises a stator and a rotor, wherein both the stator and the rotor are in the shape of a yoke type round disk and comprise round disks and iron cores formed on the round disks; an integrated stator winding is wound on the iron core of the stator; and narrow magnetism isolating grooves which are arranged at intervals are radially formed in the iron core of the stator. The motor is simple in structure, high in efficiency and flexible in control method, can realize high-efficiency stepless speed regulation, and is very applicable to the application occasion requiring a short shaft, thin mounting, or low speed and large torque.

Description

technical field [0001] The invention belongs to the field of motors, and relates to a switched reluctance motor, in particular to a high-efficiency, high-torque disc-type switched reluctance motor. Background technique [0002] Switched reluctance motor, referred to as SR (Switched Reluctance; switched reluctance) motor or SRM (Switched Reluctance Motor; switched reluctance motor), the earliest documented records can be traced back to 1838. At that time, Scottish scholar Davidson manufactured a drive system for propelling battery locomotives. Since mechanical switches were used at that time, its operating characteristics, reliability and electromechanical energy conversion rate were very low, which was difficult to attract people's attention. In the 1920s, British scholar C.L.Walker invented and obtained the patent of stepping motor, which initially possessed many characteristics of modern VR stepping motor and switched reluctance motor. After the 1960s, foreign countries b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/24
Inventor 曹书豪赵朝会陈垒项峰张迪袁龙生李键
Owner SHANGHAI DIANJI UNIV
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