Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor

This study proposes a novel magnetic circuit design to reduce the size of horizontal linear vibration motors (HLVMs) used in vehicle touchscreens. The HLVM prototype uses two thick permanent magnets to create a magnetic circuit below the voice coil; however, the novel design places four thin permane...

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Main Authors: Zhixiong Jiang, Kihong Park, Sangmoon Hwang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/11/6/149
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author Zhixiong Jiang
Kihong Park
Sangmoon Hwang
author_facet Zhixiong Jiang
Kihong Park
Sangmoon Hwang
author_sort Zhixiong Jiang
collection DOAJ
description This study proposes a novel magnetic circuit design to reduce the size of horizontal linear vibration motors (HLVMs) used in vehicle touchscreens. The HLVM prototype uses two thick permanent magnets to create a magnetic circuit below the voice coil; however, the novel design places four thin permanent magnets above and below the voice coil. Moreover, the coil position has been changed to a yoke center to create an effective magnetic circuit with short magnets. Compared with the vertical linear vibration motor, the force calculation method of the HLVM is significantly different. In this study, a new force calculation method is used to analyze the electromagnetic–mechanical coupling of the HLVM. As a prototype, the novel design is small in size (−28.85%) but possesses similar acceleration. The experimental results verify the analysis results of the HLVM in the displacement and acceleration on a dummy jig.
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spelling doaj.art-3c41440405ad4a748062c4a263e1d7762023-11-23T15:03:57ZengMDPI AGActuators2076-08252022-06-0111614910.3390/act11060149Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration MotorZhixiong Jiang0Kihong Park1Sangmoon Hwang2School of Mechanical Engineering, Pusan National University, Busan 46241, KoreaMotor Group, Hyundai Motor Company, Hwaseong-si 18280, KoreaSchool of Mechanical Engineering, Pusan National University, Busan 46241, KoreaThis study proposes a novel magnetic circuit design to reduce the size of horizontal linear vibration motors (HLVMs) used in vehicle touchscreens. The HLVM prototype uses two thick permanent magnets to create a magnetic circuit below the voice coil; however, the novel design places four thin permanent magnets above and below the voice coil. Moreover, the coil position has been changed to a yoke center to create an effective magnetic circuit with short magnets. Compared with the vertical linear vibration motor, the force calculation method of the HLVM is significantly different. In this study, a new force calculation method is used to analyze the electromagnetic–mechanical coupling of the HLVM. As a prototype, the novel design is small in size (−28.85%) but possesses similar acceleration. The experimental results verify the analysis results of the HLVM in the displacement and acceleration on a dummy jig.https://www.mdpi.com/2076-0825/11/6/149linear vibration motoraccelerationelectromagnetic–mechanical couplingelectromagnetic forcemagnetic circuit design
spellingShingle Zhixiong Jiang
Kihong Park
Sangmoon Hwang
Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
Actuators
linear vibration motor
acceleration
electromagnetic–mechanical coupling
electromagnetic force
magnetic circuit design
title Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
title_full Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
title_fullStr Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
title_full_unstemmed Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
title_short Novel Magnetic Circuit Design and Acceleration Calculation of Horizontal Linear Vibration Motor
title_sort novel magnetic circuit design and acceleration calculation of horizontal linear vibration motor
topic linear vibration motor
acceleration
electromagnetic–mechanical coupling
electromagnetic force
magnetic circuit design
url https://www.mdpi.com/2076-0825/11/6/149
work_keys_str_mv AT zhixiongjiang novelmagneticcircuitdesignandaccelerationcalculationofhorizontallinearvibrationmotor
AT kihongpark novelmagneticcircuitdesignandaccelerationcalculationofhorizontallinearvibrationmotor
AT sangmoonhwang novelmagneticcircuitdesignandaccelerationcalculationofhorizontallinearvibrationmotor