Novel permanent magnet synchronous motor structure

A permanent magnet synchronous motor, a new type of technology, applied to synchronous motors with static armatures and rotating magnets, magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve the output torque of permanent magnet synchronous motor Small, magnetic leakage on the inner surface of the rotor, etc., to achieve the effects of good operating characteristics, simplified air gap, and large torque output range

Pending Publication Date: 2019-05-17
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of permanent magnet synchronous motor structure to solve the problems of low output torque of existing permanent magnet synchronous motors and magnetic flux leakage at the inner surface of the rotor

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  • Novel permanent magnet synchronous motor structure

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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0013] See attached figure 1 , a new type of permanent magnet synchronous motor structure, characterized in that the motor body includes a stator, a magnet adjustment block, a rotor, and a permanent magnet; the stator is made of low-loss silicon steel sheet material, the rotor is a solid rotor, and the Permanent magnets are built tangentially into the rotor.

[0014] The magnet adjusting block is combined with the stator of the motor to form stator teeth.

[0015] A spaced magnetic bridge is used between the rotor and the rotor shaft.

[0016] The rotor adopts a tangential built-in rotor with permanent magnets.

[0017] By adopting the above technical scheme, the permanent magnet synchronous motor obtains good operating characteristics. Adding ...

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Abstract

The invention provides a novel permanent magnet synchronous motor structure, belonging to the technical field of motor structures. A motor body comprises a stator, a magnet adjusting iron block, a rotor and a permanent magnet; the magnet adjusting iron block is combined with the stator of the motor to form a stator gear; a magnetic spacing bridge is used between the rotor and a rotor shaft; and the rotor adopts a permanent magnet tangential built-in rotor. The technical points of the novel permanent magnet synchronous motor structure are as follows: the magnet adjusting iron block is added tothe motor to convert the traditional mechanical gear into a magnetic gear, so that the vibration noise of the motor becomes smaller and the torque density becomes higher; then the magnet adjusting iron block is combined with the stator of the motor to form the stator gear, therefore, one layer of air gap is decreased, and the motor structure is simplified; the magnetic spacing bridge is used between the rotor and the rotor shaft, so that a magnetic spacing air gap with high reluctance is introduced into the magnetic leakage loop, and the leakage magnetic flux at the inner diameter of the rotorcan be effectively suppressed; and the rotor adopts a permanent magnet tangential built-in rotor, so that the anti-demagnetization ability of the magnet becomes stronger, and the torque output rangebecomes larger, which facilitates the weak magnetic control.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a novel permanent magnet synchronous motor structure. Background technique [0002] The permanent magnet synchronous motor integrates the advantages of both the AC motor and the DC motor, and can easily achieve small size, high operating efficiency, high power density, and stable system. It is increasingly widely used in many fields of industrial development and daily life. application. However, the traditional permanent magnet motor has small output torque, large loss, and magnetic flux leakage on the inner surface of the rotor. These shortcomings will limit the development of permanent magnet synchronous motors. Contents of the invention [0003] The purpose of the present invention is to provide a novel permanent magnet synchronous motor structure to solve the problems of low output torque of the existing permanent magnet synchronous motor and magnetic flux leakage at the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K1/27
Inventor 戈宝军张铭芮毛博
Owner HARBIN UNIV OF SCI & TECH
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