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A rotor core structure

A rotor iron core and iron core technology, applied in the magnetic circuit shape/style/structure, magnetic circuit rotating parts, electromechanical devices, etc., can solve the problem of large magnetic flux leakage coefficient, reduce the magnetic leakage coefficient and avoid irreversible high temperature The effect of loss of magnetic field and reduction of magnetic flux leakage

Active Publication Date: 2021-12-21
东风博泽汽车系统有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the rotor of the permanent magnet motor in the prior art has a relatively large flux leakage coefficient, and the present invention provides a rotor core structure

Method used

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  • A rotor core structure
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Embodiment Construction

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0024] refer to Figure 1 to Figure 5 , a rotor core structure, including a core body 1 and a magnetic steel slot 2 for installing permanent magnets;

[0025] A magnetic conductor 3 is formed between adjacent magnetic steel slots 2, and a single magnetic conductor 3 is composed of first magnetic permeable sheets 4 and second magnetic permeable sheets 5 with the same size and thickness;

[0026] A magnetic resistance groove 6 is provided on the second magnetic conductive sheet 5, and the magnetic resistance groove 6 is provided to provide a uniform gap inside the magnetic conductive body 3, so as to block the magnetic force lines through the gap and reduce the magnetic flux leakage coefficient;

[0027] Here, the fi...

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Abstract

The invention discloses a rotor iron core structure, which includes an iron core body, on which a plurality of magnetic steel slots are radially opened for installing permanent magnets; a magnet guide body is formed between two magnetic steel slots, and the magnet guide body includes a first A magnetically permeable sheet and a second magnetically permeable sheet, the second magnetically permeable sheet is provided with a number of magnetic resistance grooves, and several first magnetically permeable sheets and second magnetically permeable sheets are stacked alternately to form a magnetically permeable body; the present invention reduces the motor core The magnetic flux leakage coefficient of the main body improves the utilization rate of energy and prevents the motor from being damaged by heat. At the same time, it also avoids the irreversible high-temperature loss of magnetism in the permanent magnet in the rotor body of the motor due to excessive temperature of the motor, which affects the working performance of the motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a rotor core structure. Background technique [0002] The rotor of a permanent magnet motor is composed of a rotating shaft, a rotor core, a permanent magnet and additional supports. The rotor core of an existing permanent magnet motor generally has a magnetic steel slot on the core body, and the permanent magnet is embedded in the magnetic steel slot. The magnetic field is generated by the permanent magnet, and the rotor is rotated by electromagnetic induction, but as long as the magnetic field exists, there will be magnetic flux leakage. The magnetic flux leakage refers to the magnetic field part outside the magnetic shielding equipment in the magnetic shielding equipment, and the size of the magnetic flux leakage coefficient is determined. One of the important parameters of motor performance. [0003] The problem of large magnetic flux leakage coefficient of the existing perma...

Claims

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Application Information

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IPC IPC(8): H02K1/27
CPCH02K1/276
Inventor 颜祥春
Owner 东风博泽汽车系统有限公司
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