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Magnetic flow switched and surface-mounted type permanent magnet memory motor

A memory motor and flux switching technology, applied in the direction of magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., can solve the difficulty in realizing the excitation current control system, increase the complexity of electromagnetic characteristics, and easily interact with each other Coupling and other issues to achieve the effect of easy heat dissipation, improve operating efficiency, and reduce wind resistance

Inactive Publication Date: 2013-06-12
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of motor has two magnetic potential sources at the same time, and the magnetic fluxes of the two are easy to couple and influence each other, which increases the complexity of electromagnetic characteristics, and has weaknesses such as increased excitation loss and difficulty in implementing the excitation current control system.

Method used

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  • Magnetic flow switched and surface-mounted type permanent magnet memory motor
  • Magnetic flow switched and surface-mounted type permanent magnet memory motor
  • Magnetic flow switched and surface-mounted type permanent magnet memory motor

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Embodiment Construction

[0026] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1As shown, a flux-switching surface-mounted permanent magnet memory motor of the present invention includes a casing, and a stator 1 , a rotor 2 and a rotating shaft 3 accommodated in the casing. The casing is fixedly connected to the stator 1 , and the stator 1 is located outside the rotor 2 . The rotor 2 is a cylinder with through holes. The rotor 2 includes a sleeve 201 with a central through hole and a segmented rotor core 202 . The rotating shaft 3 is fixedly connected in the central through hole of the sleeve 201; the segmented rotor core 202 is fan-shaped, and is evenly distributed along the circumference of the rotor 2 and fixedly connected to the outer surface of the sleeve 201. Both the shaft 3 and the sleeve 201 are made of non-magnetic materials. Non-magnetic materials can choose aluminum, copper...

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Abstract

The invention discloses a magnetic flow switched and surface-mounted type permanent magnet memory motor which comprises an enclosure, a stator, a rotor and a rotary shaft. The stator, the rotor and the rotary shaft are contained in the enclosure. The rotor is a cylinder provided with a through hole, and comprises a sleeve provided with a center through hole, and block rotor iron cores. The rotary shaft is fixedly connected in the center through hole of the sleeve. The block rotor iron cores are sector-shaped, evenly distributed along the circumferential direction of the rotor, and fixedly connected on the outer surface of the sleeve. The stator comprises a stator core, permanent magnets, three-phase armature windings and pulse windings. The stator core comprises a stator yoke and stator teeth. The stator teeth are composed of permanent magnet teeth and armature teeth. The permanent magnets are tile-shaped, and fixedly connected on the outer surface of the permanent magnet teeth. The permanent magnets are magnetized along the radial direction, and the mangnetizing directions of every two adjacent permanent magnets are opposite to each other. The three-phase armature windings are wound on the armature teeth, and the pulse windings are wound on the permanent magnets. The permanent magnet memory motor can enable the weak magnet capability and a rotation speed operation range of the motor to be improved, and a no-load air gap magnetic field is adjustable.

Description

technical field [0001] The invention relates to an adjustable magnetic flux permanent magnet motor, in particular to a magnetic flux switching surface-mounted permanent magnet memory motor. Background technique [0002] In the field of motors, due to the inherent characteristics of ordinary permanent magnet materials (such as NdFeB), the air gap magnetic field in the motor is basically kept constant, and the speed regulation range is very limited when operating as an electric motor. The application of wide-speed adjustable direct drive applications such as electric vehicles and aerospace is limited to a certain extent. Therefore, the adjustable flux permanent magnet motor aimed at realizing the effective adjustment of the air gap magnetic field of the permanent magnet motor has always been a hot spot and difficulty in the field of motor research. . Permanent magnet memory motor (hereinafter referred to as "memory motor") is a new type of flux controllable permanent magnet m...

Claims

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Application Information

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IPC IPC(8): H02K1/17H02K1/14H02K1/16H02K29/00
Inventor 林鹤云阳辉颜建虎黄允凯房淑华张洋
Owner SOUTHEAST UNIV
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