Little rare earth type wide speed regulation hybrid permanent magnetic flux switching double stator motor

A hybrid permanent magnet and magnetic flux switching technology, which is applied in the direction of magnetic circuits, magnetic circuits, electrical components, etc. characterized by magnetic materials, can solve the problem of high saturation of the local magnetic field of the motor, the inability to adjust the inherent magnetic field of the permanent magnet, and the increase in the size of the motor. Large and other problems, achieve high space utilization, reduce the risk of local irreversible demagnetization, and ensure the effect of power density and torque density
CN105375715AActive Publication Date: 2016-03-02JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2016-03-02

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Abstract

The invention discloses a little rare earth type wide speed regulation hybrid permanent magnetic flux switching double stator motor. According to the motor, X outer stator teeth are distributed uniformly and circumferentially on an inner surface of an outer stator, m phases of armature windings and magnetization windings are alternately wound on the X outer stator teeth; q magnetic conduction blocks and q insulation blocks are arranged on an outer circle surface of a rotor support of a middle rotor in a staggered mode; an inner stator comprises an inner stator core and a hybrid permanent magnetic unit, K hybrid permanent magnet units are uniformly embedded in the inner stator core along the circumference direction, each hybrid permanent magnet unit respectively comprises a middle non-rare-earth aluminum nickel cobalt permanent magnet and rare earth neodymium iron boron permanent magnets at two sides of the non-rare-earth aluminum nickel cobalt permanent magnet; a stator partitioning structure is employed, the armature windings and the permanent magnets are separated and are respectively arranged in the outer stator and the inner stator, a problem of mutual limit in quantity of traditional magnetic flux switching motor permanent magnets and armature windings is solved, and motor power density and torque density are easy to improve.
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Description

technical field

[0001] The invention relates to a magnetic flux switching dual-stator motor, in particular to a low-rare-earth wide-speed-adjustable hybrid permanent magnet flux switching dual-stator motor for electric vehicles, which belongs to the technical field of motor body design. Background technique

[0002] Vehicle drive motors are the key power components of electric vehicles. The important indicators for evaluating and measuring the performance of drive motors are high power density, high efficiency (high efficiency in all working planes), high reliability, and wide speed range (> 5 times the base Speed), with frequent start and acceleration and deceleration capabilities, low cost, etc. At present, in the field of vehicle drive motors, rare earth permanent magnet motors with advantages such as high efficiency and high power density are the main choice for new energy vehicles. However, the price of medium and heavy rare earth permanent magnet materials has rise...

Claims

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