• Title/Summary/Keyword: Claw Pole Stepping motor

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The Study on the design of Claw Pole Stepping Motor considering Axial flux (축 방향 자속을 고려한 Claw pole 스테핑 모터 설계에 관한 연구)

  • Jung, Dae-Sung
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.9
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    • pp.28-34
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    • 2014
  • A claw pole stepping motor is widely used in various fields such as a compact optical disk drive, computer peripherals, digital cameras, office automation(OA), handheld mobile devices, because it has the suitable structure for compact motor. However 3D analysis is essential for design of Claw pole stepping motor because of axial flux path. Thus, in general, it takes a lot of time in the design of Claw pole motor. In this paper, magnetic equivalent circuit considering axial flux was proposed to reduce design time of Claw pole motor and we has designed by using the magnetic equivalent circuit. In addition, in oder to verify the study, design model was verified by 3D FEM simulation and experiment.

A Study on the Detent Torque Reduction of Claw Pole Permanent Magnet Type Motor

  • Jung, Dae-Sung;Lee, Ju;Lee, Sang-Taek
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.27 no.12
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    • pp.125-132
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    • 2013
  • This paper has done a three-dimensional FEM analysis of the PM claw pole stepping motor. As magnetization happens in the z-axis, which does not have a constant value, three-dimensional FEM analysis is necessary for characteristic analysis of PM claw pole stepping motors. Because it is a type of permanent magnet motor, the PM claw pole stepping motor naturally has a detent torque. This torque is known to show negative effects on motor performance. To improve motor performance, reducing the detent torque is very important during the motor design. This paper applied DOE for optimization of stator pole design of the motor. Also, we compared motor performance by applying a different type of rotor shape, dividing the permanent magnet. To verify the simulation results, an experiment was done.

Design Method of the Claw-pole PM Stepping Motor for Scanner (스캐너용 Claw-pole PM형 스테핑 모터의 설계 방법)

  • You, Yong-Min;Oh, Sang-Yeul;Kim, Jick
    • Proceedings of the KIEE Conference
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    • 2005.10c
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    • pp.118-121
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    • 2005
  • The claw-pole PM(Permanent Magnet) stepping motor has the advantage of the positioning machine because of a relatively little step angle, facility of control, and detent torque characteristics. Although the research about this motor has been progressed, it was difficult to analyze because of three-dimensional magnetic circuit. This paper proposed a design method of the claw-pole PM stepping motor using 3D-FEA. We established design variables that have an important effect upon the characteristics of the motor, and then peformed analysis of the static and the dynamic characteristics. We also manufactured the test products and practiced the performance tests for verification of the analysis results.

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Characteristics Analysis and Performance Test of the Claw-pole PM Stepping Motor (Claw-pole PM형 스테핑 모터의 특성 해석 및 성능 평가)

  • You, Yong-Min;Oh, Sang-Yeul;Kim, Jick
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.21-23
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    • 2004
  • The claw-pole PM(Permanent Magnet) stepping motor has the advantage of the positioning machine because of a relatively little step angle, facility of control, and detent torque characteristics. Although the research about this motor has been progressed, it was difficult to analyze because of three-dimensional magnetic circuit. This paper performed analysis of the static and dynamic characteristics of the claw-pole PM stepping motor using 3D-FEM(Finite Element Method). We also manufactured the test products and practiced performance tests for verification of the analysis results.

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A study on the improvement of construction error in PM stepping motor with claw pole (Claw pole PM stepping motor의 조립 오차를 개선시키기 위한 연구)

  • Ham, Sang-Hwan;Lee, Sung-Gu;Go, Sung-Chul;Kim, Won-Ho;Lee, Hyung-Woo;Lee, Ju
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1005-1006
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    • 2007
  • This paper analyzed the characteristics of the claw pole permanent magnet(PM) stepping motor by using 3D Finite element method(FEM). In this motor, magnetization is occurred along the z-axis, therefore it is necessary to apply 3D FEM for analysis of the claw pole motor. A phase difference of the two stacks's detent torque is 180 degrees. When the center of a permanent magnet is identical with the middle of a pole, small detent torque is produced in order to cancel each of detent torques. However, there are construction errors which are a discrepancy between one and the other phase section in the manufacturing process, thus the detent torque is increased. Moreover, it is confirmed that the proportion of the detent torque is considerably arisen according to the error. Analysis of the construction error is studied by changing the error $0^{\circ}$ to $3^{\circ}$.

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3-Dimensional Analysis of Permanent Magnet Stepping Motor With Claw Poles (전자정보기기 구동용 영구자석형 스테핑 모터의 3차원 해석)

  • An, Ji-Hyun;Park, Seung-Chan;Rhyu, Se-Hyun;Jung, In-Sung
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.107-109
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    • 2004
  • Stepping motors are widely used for various electric instruments. In case of analysing claw pole PM slopping motor 3-dimensional analysis is necessary for accurate field calculation. This paper presents static torque characteristics of a permanent magnet type stepping motor with claw poles using three-dimensional finite element analysis.

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A Study of the Miniaturization of the PM type Stepping Motor (Claw-pole을 갖는 PM형 스테핑 모터의 소형화에 관한 연구)

  • Rhyu Se-hyun;Jung In-soung;Sung Ha-kyung;Kwon Byung-il
    • Proceedings of the KIEE Conference
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    • summer
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    • pp.929-931
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    • 2004
  • Recently, there are growing demands for permanent magnet(PM) type stepping motor that greater mechanical output, smaller size. Especially, the PM type stepping motor with claw-poles is preferred solution for many small electronics position determination devices since it is small in size, low cost. But, the design of the PM type stepping motor with claw-poles is very difficult because it has a magnetic 3-D shape. This paper deals with a study of the miniaturization of the PM type stepping motor with claw-poles. We investigate the characteristic of the actual model using the equivalent magnetic circuit method and 3-D FE analysis.

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Optimal Design of the PM Stepping Motor by use of the experimental method (실험적 방법에 의한 프린터용 PM형 스테핑 모터의 최적 설계)

  • You, Yong-Min;Oh, Sang-Yeul;Chae, Hyeong-Seok
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.24-26
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    • 2004
  • The PM(Permanent Magnet) stepping Motor has been used widely to a variety of industries because of the open-loop control characteristic, a relatively large frequency range of velocity control and non-accumulated error of the step angle. Moreover, It has been gradually applied to office automation, machine intelligence, digital appliance, and automobile parts. This paper presents the optimal design results by use of the experimental method. The design variables of the PM stepping motor are shape of the claw-pole, material of core, and air-gap. As a result, a superior claw-pole PM stepping motor for OA machinery was developed.

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A Study on the Improvement of Static Torque Characteristic in Permanent Magnet Stopping Motor with Claw Pole (Claw Pole Type 영구자석형 스테핑 모터의 정토크 특성 향상에 관한 연구)

  • Lim, Seung-Bin;Son, Yeoung-Gyu;Kim, Young-Tae;Lee, Ju
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.20 no.8
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    • pp.80-87
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    • 2006
  • This paper analyzed the characteristics of the claw pole PM stewing motor by using 3D FEM. As the magnetization occurs along the z-axis of the motor, it is necessary to apply 3D FEM for analysis of the claw pole PM stewing motor. Considering the computation time, reducing the number of the analysis model is effective method of the methods of the reducing analysis time. By using the "Design Of Experiments(DOE)", efficient analysis was able to be done. To see the effects of the design factors, the 3D FEM is applied only to the selected models. As the design factors, the teeth selected models, the number of turns and the permanent magnet overhang was selected.

Transient Response Characteristics Analysis of Permanent Magnet Type Stepping Motor with Claw Poles (Claw-Pole을 갖는 PM형 스테핑 모터의 과도응답 특성 해석)

  • Ahn, Ji-Hyun;Kim, Kyung-Min;Park, Seung-Chan;Rhyu, Se-Hyun;Jung, In-Sung
    • Proceedings of the KIEE Conference
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    • 2005.07b
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    • pp.1264-1266
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    • 2005
  • This paper analyzes static and transient response characteristics of a permanent magnet type stepping motor with claw poles using three-dimensional finite element method. The outer diameter of the stepping motor to be analyzed is approximately 6 mm. In this paper we analyzes only 2 poles of the stepping motor, which has 10 magnetic poles made up of NdFeB material, using periodic boundary condition. We clarify transient response and static torque charateristics using Maxwell 3D and Matlab Simulink.

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