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Stepping motor stator and stepping motor with same

A stepper motor, motor stator technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of large back EMF harmonics of the motor, large vibration noise of the motor, affecting the smooth operation of the motor, etc., to reduce the back EMF Harmonic effect, reducing vibration and noise, improving stability

Pending Publication Date: 2022-03-01
鸣志电器(太仓)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stepper motor designed in the existing scheme will cause excessive harmonics of the motor’s back EMF, such as figure 2 shown
Excessive back EMF harmonics will cause the vibration and noise of the motor to be large, which will affect the smooth operation of the motor

Method used

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  • Stepping motor stator and stepping motor with same
  • Stepping motor stator and stepping motor with same
  • Stepping motor stator and stepping motor with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like Figure 3-4 As shown, a stator of a stepping motor includes a stator core 1, the stator core 1 is evenly distributed with several stator main poles 2 along the inner diameter of the stator, and the ends of the stator main poles 2 are connected with a number of stator teeth 3 , the number of the stator teeth 3 is the same as that of the stator main poles 2 , and the stator tooth outline of the stator teeth 3 is the tooth arc cutting outline 5 or the tooth straight outline 6 .

[0026] In the stepping motor with the same number of poles and the same number of teeth, the present invention performs arc cutting or straight line processing on the tooth contour of the motor, such as image 3 As shown, the air gap between the stator and rotor of the motor is made uneven. Compared with the existing scheme, the harmonics of the motor back EMF of the present invention can be greatly improved, specifically as Figure 5 shown.

[0027] The radius R1 of the tooth arc cutting c...

Embodiment 2

[0031] like Figure 3-4 As shown, a stepper motor with a stator, including a motor rotor and a motor stator in Embodiment 1, reduces the back EMF harmonics of the motor, reduces the vibration and noise of the motor, and improves the motor stator by improving the motor stator. smoothness of operation.

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Abstract

The stepping motor stator comprises a motor stator body and a motor rotor, the motor stator body comprises a stator iron core, a plurality of stator main poles are evenly distributed on the stator iron core in the circumferential direction of the inner diameter of the stator, and a plurality of stator teeth are connected to the ends of the stator main poles. The number of the stator teeth is the same as that of the stator main poles, and the stator tooth part contour line of the stator teeth is a tooth part arc cutting contour line or a tooth part linear contour line. Compared with the prior art, the invention has the advantages of reducing the back electromotive force harmonic wave of the motor, reducing the vibration and noise of the motor, improving the running stability of the motor and the like.

Description

technical field [0001] The invention relates to a stepping motor, in particular to a stepping motor stator and a stepping motor with the stator. Background technique [0002] like figure 1 As shown, the stator core 1 of the existing hybrid stepping motor, the stator core 1 is evenly distributed with several stator main poles 2 along the circumferential direction of the inner diameter of the stator, and the ends of the stator main poles are connected with several stator teeth 3, The number of stator main poles 2 and stator teeth 3 is the same, and the shape of such a stator core is as follows figure 1 shown. The center of the stator tooth outline 4 is at point O, which is the same as the circle of the outer diameter of the stator. [0003] The stepper motor designed in the existing scheme will cause excessive harmonics of the motor’s back EMF, such as figure 2 shown. Excessive back EMF harmonics will cause the vibration and noise of the motor to be large, which will aff...

Claims

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Application Information

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IPC IPC(8): H02K1/14H02K37/00
CPCH02K1/146H02K37/00
Inventor 彭光明甘建军金万兵
Owner 鸣志电器(太仓)有限公司
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