Magnetic flux controllable axial magnetic field mixed hybrid permanent magnet memory motor

A technology of axial magnetic field and hybrid permanent magnet, which is applied in the direction of electrical components, electromechanical devices, magnetic circuit static parts, etc., can solve the problem that the maximum air gap flux of the motor is difficult to reach the NdFeB permanent magnet motor and the power index of the motor Unsatisfactory, large magnetomotive force of magnetic modulation pulse, etc., to achieve the effect of heat dissipation, saving copper wire materials, and reducing magnetic flux leakage

Active Publication Date: 2015-07-22
邳州市景鹏创业投资有限公司
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Problems solved by technology

[0005] Lin Heyun of Southeast University proposed a surface-mounted permanent magnet memory motor with axial magnetic flux switching. Although the motor can adjust the air gap magnetic field by applying different currents to the single-phase pulse winding, the motor is only AlNiCo permanent magnets with relatively low coercive force are used, and the maximum air gap flux of the motor is difficul

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  • Magnetic flux controllable axial magnetic field mixed hybrid permanent magnet memory motor
  • Magnetic flux controllable axial magnetic field mixed hybrid permanent magnet memory motor

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0028] figure 1 It is a three-dimensional structural schematic diagram of the motor embodiment of the present invention: figure 1 (a) in (a) is the first rotor disc, set on one side of the stator, figure 1 (b) in is the stator, figure 1 (c) in (c) is the second rotor disc, which is set on the other side of the stator. A magnetic flux controllable axial magnetic field hybrid permanent magnet memory motor, including two rotor disks 1, a stator and a mounting shaft, the two rotor disks are symmetrically arranged on both sides of the stator, and the stator and the two rotor disks are coaxially installed on the Installed on the shaft; on the inner surface of the rotor disk, there are respectively pasted NdFeB permanent magnets 2 and core poles 3 arranged alternately in inner and outer circles, that is, on the inner surface of the rotor disk, it is fo...

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Abstract

The invention discloses a magnetic flux controllable axial magnetic field mixed hybrid permanent magnet memory motor comprising two rotor discs, a stator and an installation shaft. NdFeB permanent magnets and iron core poles, which are arrayed in inner and outer circles at intervals alternately, are bonded to the inner surfaces of the rotor discs; the NdFeB permanent magnets are magnetized axially, the polarities of the NdFeB permanent magnets of the outer circle are the same, the polarities of the NdFeB permanent magnets of the inner circle are opposite to those of the NdFeB permanent magnets of the outer circle, and the magnetizing directions of the NdFeB permanent magnets arranged in corresponded positions of two rotor discs are the same; the stator comprises a stator iron core, a three-phase armature winding and a single-phase pulse winding. The motor has high power density and wide rotating speed operation range and is adaptive to relevant drive occasions of low axial size requirements, compacted structure and flux weakening requirements.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to an axial magnetic field hybrid permanent magnet memory motor with controllable magnetic flux. Background technique [0002] With the continuous improvement of the performance of rare earth permanent magnet materials, permanent magnet motors characterized by high efficiency and high power density have developed rapidly, and have been widely used in many industrial fields such as aviation, aerospace, and automobiles. Among all kinds of permanent magnet motors, axial field permanent magnet motors, also known as disc motors, not only have the characteristics of short axial size, small size, and compact structure, but also because of their high torque density and high efficiency, It has obvious advantages in many special applications and has become a research hotspot. It is mainly used in motion control, especially suitable for direct drive applications with small axia...

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Application Information

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IPC IPC(8): H02K16/02H02K1/27H02K1/16H02K1/17
Inventor 曹永娟余莉贾红云
Owner 邳州市景鹏创业投资有限公司
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