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Easy-to-manufacture magnetic powder casting double-sided rotor motor

A double-sided rotor and casting technology, which is applied in the manufacture of motor generators, stator/rotor bodies, magnetic circuit rotating parts, etc., can solve the problem that the structure cannot be formed by die-casting, the utilization rate of magnetic poles is not high, and the drive circuit is complicated. and other issues, to achieve the effect of saving resources, reducing material costs, and high utilization of magnetic poles

Inactive Publication Date: 2017-01-11
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the stators of AC permanent magnet motors generally use silicon steel sheets to form a structure, and the structure cannot be formed by die-casting; the magnetic poles of the rotor are mostly permanent magnetic steel; generally, one magnetic pole corresponds to one coil winding, and usually a motor will have Three or more winding coils require a large amount of copper and iron, and the cost is high; at the same time, several windings require several full-bridge drive circuits, and the drive circuits are relatively complicated; there are many processes in the motor manufacturing process, The installation is more complicated, time-consuming and labor-intensive; the structure of the motor rotor usually adopts the structure of the inner rotor or the outer rotor, and the direction of the magnetic field is radial. Coil windings add control signals according to a certain timing, the disadvantage is that sometimes there is no current flowing through the magnetic poles, and the utilization rate of the magnetic poles is not high

Method used

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  • Easy-to-manufacture magnetic powder casting double-sided rotor motor
  • Easy-to-manufacture magnetic powder casting double-sided rotor motor
  • Easy-to-manufacture magnetic powder casting double-sided rotor motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0033] See figure 1 , see figure 2 , the easy-to-manufacture magnetic powder casting double-sided rotor motor of this embodiment consists of a stator 1, a rotor 2, a rotating shaft 3, a bearing 4, a Hall element 5, and bases and casings that are omitted from the drawings. The rotating shaft 3 is a steel elongated rod-shaped cylindrical part. Bearing 4 is a ball bearing.

[0034] The stator 1 is composed of an upper magnetic pole 11 , a lower magnetic pole 12 , a winding frame 13 and a stator winding 14 . There are two rotors 2, which are divided into an upper rotor 21 and a lower rotor 22 according to the upper and lower positions. Bearing 4 is provided with 2, is divided into upper side bearing 41 and lower side bearing 42 according to upper and lower position.

[0035] See figure 2 and image 3 , The upper magnetic pole 11 of the stator 1 is composed of an integrated magnetic core 11-1 and a raised asymmetrical magnetic pole 11-2. The magnetic core 11-1 is composed ...

Embodiment 2）

[0054] The easy-to-manufacture magnetic powder casting double-sided rotor motor of this embodiment is the same as Embodiment 1 in other respects, except that the permanent magnet poles of the upper rotor 21 of the rotor 2 are permanent magnet poles, and the permanent magnet poles are permanent magnet poles. The number is twice the number of the raised asymmetric magnetic poles 11-2 of the upper magnetic pole 11 of the stator 1. The permanent magnetic steel columns include N pole permanent magnetic steel columns and S pole permanent magnetic steel columns; Magnetic pole installation holes, each permanent magnetic steel column is respectively arranged in the magnetic pole installation hole of the base body 21-1, and the magnetic polarity of the adjacent permanent magnetic steel column is opposite; in other words, each permanent magnetic steel column is according to N Pole and S pole are set alternately. The lower end surface of each permanent magnetic steel column is flush with...

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Abstract

The invention provides a magnetic powder casting type bilateral rotor motor easy to manufacture. The magnetic powder casting type bilateral rotor motor easy to manufacture comprises a stator, rotors, a rotating shaft, bearings and a Hall element. The stator is composed of an upper magnetic electrode, a lower magnetic electrode, a coil frame and a stator winding. Two or more magnetic electrodes with unsymmetrical protrusions are arranged at the two ends of the stator. The upper magnetic electrode and the lower magnetic electrode are fixed to the coil frame, are the same in structure and are each an integral piece formed by casting composite nanocrystalline in a pressing mode. A set of coil is wound on the coil frame. The two rotors are arranged at the two ends of the stator. Each rotor is composed of a base body and a permanent magnet. The two bearings are fixedly installed on the upper magnetic electrode and the lower magnetic electrode of the stator respectively. The Hall element is arranged on the upper magnetic electrode or the lower magnetic electrode of the stator. The rotating shaft is in interference fit with the two rotors and the two bearings in a connection mode. The structure and a driving circuit are simple and easy to manufacture, the direction of a magnetic field is axial, the utilization rate of the magnetic electrodes is high, the labor cost can be greatly saved, and a special motor can be manufactured easily.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201210420753.9 and the application date is October 29, 2012, and the invention name is "Magnetic powder casting double-sided rotor motor". technical field [0002] The invention relates to the technical field of AC motors, in particular to a permanent magnet AC motor with a double-side rotor structure of magnetic powder casting. Background technique [0003] An AC motor consists of a stator and a rotor. At present, the stators of AC permanent magnet motors generally use silicon steel sheets to form a structure, and the structure cannot be formed by die-casting; the magnetic poles of the rotor are mostly permanent magnetic steel; generally, one magnetic pole corresponds to one coil winding, and usually a motor will have Three or more winding coils require a large amount of copper and iron, and the cost is high; at the same time, several windings require several ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/02H02K1/14H02K1/18H02K1/27H02K15/02H02K11/215H02K11/21
CPCH02K1/02H02K1/14H02K1/187H02K1/2753H02K15/022H02K16/025
Inventor 王雁平张永春廉春原
Owner CHANGZHOU INST OF TECH