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Disc type motor rotor with embedded magnetic poles

A disc motor and magnetic pole technology, which is applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuit rotating parts, and magnetic circuit shape/style/structure, etc. , to achieve the effect of easy field weakening control, low magnetic field loss and large inductance

Active Publication Date: 2018-06-29
姚常勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the disc motor rotor cannot adopt the silicon steel punching process, it is impossible to process holes for embedding magnetic poles inside the disc motor rotor, so it is impossible to embed magnetic poles in the disc motor rotor

Method used

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  • Disc type motor rotor with embedded magnetic poles
  • Disc type motor rotor with embedded magnetic poles
  • Disc type motor rotor with embedded magnetic poles

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. However, those skilled in the art know that the present invention is not limited to the drawings and the following embodiments.

[0028] like Figure 1-3 As shown, the disc motor rotor with embedded magnetic poles of the present invention includes a rotor back plate 1 , magnetic poles 2 , surface iron core 3 and inner ring limit ring 4 .

[0029] The rotor back plate 1 is in the shape of a ring and integrally formed. It can be processed from a whole piece of material, or it can be formed from silicon steel coiled into a roll and then cut. The upper surface of the rotor back plate 1 is continuously formed with a plurality of magnetic pole slots 11 for fitting the magnetic poles 2, each magnetic pole slot 11 is a slot surrou...

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Abstract

The invention provides a disc type motor rotor with embedded magnetic poles, which comprises a rotor back plate, magnetic poles and surface iron cores, wherein the rotor back plate is in the shape ofa circular ring, the upper surface of the rotor back plate is provided with a plurality of magnetic pole grooves which are formed in a continuous manner, and the longitudinal cross section of each magnetic pole groove in the direction perpendicular to the radial direction of the rotor back plate is bilaterally symmetrical; each magnetic pole groove is fixedly embedded with a magnetic pole, and themagnetic pole is of a groove shape corresponding to the shape of the magnetic pole groove; and the surface iron cores are fixed in the grooves of the magnetic poles, and the surface iron cores are ofa shape corresponding to an accommodating space of the grooves of the magnetic poles. The disc type motor rotor with the embedded magnetic poles is high in inductance and good in magnetoresistive effect, obtains a magnetic field with a better sine degree, improves the torque, and is high in speed and easy to perform field weakening control. In addition, the disc type motor rotor with the embeddedmagnetic poles is low in magnetic field loss and low in cogging effect.

Description

technical field [0001] The invention relates to a motor component, in particular to a disc motor rotor with magnetic poles embedded in it. Background technique [0002] Disc motor is also called disc motor, which has the characteristics of small size, light weight and high efficiency. The stator of the disc motor is generally placed on a flat substrate, and the rotor is arranged on the stator. The stator includes coils, and the rotor is a permanent magnet or a disc with permanent magnets glued on it. The rotors of disc motors are mostly surface-mounted magnetic poles, arranged in the order of N / S / N / S.... [0003] The motor rotor with embedded magnetic poles is currently used in radial magnetic field motors. By configuring the number, angle, and number of layers of embedded magnetic poles, an air-gap magnetic field with better sine degree can be configured, which can reduce high-order harmonics. wave loss, reducing cogging and torque ripple. The surface of the embedded rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/24
CPCH02K1/2766H02K21/24
Inventor 姚常勤
Owner 姚常勤
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