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Permanent magnet synchronous motor rotor with high-performance tangential magnetic circuit structure

A permanent magnet synchronous motor, high-performance technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, magnetic circuit, etc., can solve problems such as poor structural strength, easy demagnetization, and no magnetic gathering ability

Pending Publication Date: 2019-08-16
ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional permanent magnet synchronous motor with tangential arrangement of magnets has poor structural strength and cannot meet the demand for higher and higher motor speeds, and the traditional permanent magnet synchronous motor with tangential arrangement of magnets generally uses a single-layer tangential magnet Road, no magnetic gathering ability, easily demagnetized by the armature reaction

Method used

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  • Permanent magnet synchronous motor rotor with high-performance tangential magnetic circuit structure
  • Permanent magnet synchronous motor rotor with high-performance tangential magnetic circuit structure
  • Permanent magnet synchronous motor rotor with high-performance tangential magnetic circuit structure

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Embodiment

[0021] Such as figure 1 Shown, the permanent magnet synchronous motor rotor of the high-performance tangential magnetic circuit structure of the present invention, it comprises rotor iron core 14, first magnetic steel 2 and second magnetic steel 7, rotor iron core 14, first magnetic steel 2 and The second magnetic steel 7 forms several magnetic poles, which are distributed alternately.

[0022] The first magnetic steel 2 and the second magnetic steel 7 are respectively embedded in the interior of the rotor core 14, and each magnetic pole of the rotor is composed of two first magnetic steels 2 and two second magnetic steels 7, which are evenly and symmetrically distributed in the center of the magnetic poles On both sides of the line, the first magnetic pole 2 is outside the second magnetic pole 7 .

[0023] In this embodiment, the angle between the first magnets 2 is 360 degrees divided by the number of poles, and the angle between the second magnets 7 is 360 degrees divided ...

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PUM

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Abstract

The invention aims to disclose a permanent magnet synchronous motor rotor with a high-performance tangential magnetic circuit structure. The rotor comprises a rotor core, first magnetic steels and second magnetic steels, the first magnetic steels and second magnetic steels are respectively inlaid into the rotor core, each magnetic pole of the rotor is formed by two first magnetic steels and two second magnetic steels which are uniformly distributed at the two sides of the central line of the magnetic pole, and a first magnetic pole is located at the outer side of a second magnetic pole. Compared to the prior art, the contradiction between the structural strength and the magnetic isolation effect of the tangential magnetic steel arrangement is solved, the multilayer magnetic steel arrangement is adopted to easily obtain the better magnetic gathering design and pole arc coefficient control, effectively inhibit the performance reduction caused by the leakage reactance of the motor pole and achieve the purposes of the invention.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor rotor, in particular to a permanent magnet synchronous motor rotor with a high-performance tangential magnetic circuit structure. Background technique [0002] In the prior art, the permanent magnet synchronous motor with embedded tangential magnetic steel arrangement has the advantage of high reluctance torque, and is the preferred choice for reducing the cost of the motor and improving the overall performance of the motor. [0003] However, the traditional permanent magnet synchronous motor with tangential arrangement of magnets has poor structural strength and cannot meet the demand for higher and higher motor speeds, and the traditional permanent magnet synchronous motor with tangential arrangement of magnets generally uses a single-layer tangential magnet Road, no magnetic gathering ability, easily demagnetized by the armature reaction. [0004] Therefore, there is a special need for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2766H02K1/2786H02K2213/03
Inventor 王丽
Owner ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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