WO2006028165A1 - Vibreur plat - Google Patents

Vibreur plat Download PDF

Info

Publication number
WO2006028165A1
WO2006028165A1 PCT/JP2005/016508 JP2005016508W WO2006028165A1 WO 2006028165 A1 WO2006028165 A1 WO 2006028165A1 JP 2005016508 W JP2005016508 W JP 2005016508W WO 2006028165 A1 WO2006028165 A1 WO 2006028165A1
Authority
WO
WIPO (PCT)
Prior art keywords
mover
coil
vibration
magnet
vibration actuator
Prior art date
Application number
PCT/JP2005/016508
Other languages
English (en)
Japanese (ja)
Inventor
Tomohide Aoyagi
Original Assignee
Namiki Seimitsu Houseki Kabushikikaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Namiki Seimitsu Houseki Kabushikikaisha filed Critical Namiki Seimitsu Houseki Kabushikikaisha
Publication of WO2006028165A1 publication Critical patent/WO2006028165A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system

Definitions

  • the present invention relates to a vibration linear actuator mounted on a mobile communication device such as a mobile phone and a mobile liquid crystal game machine.
  • a vibration generator is used for an incoming call or a music link in an information portable device such as a mobile phone.
  • a cylindrical motor with an unbalanced weight attached to the rotating shaft has been used as this vibration generator.
  • this vibration generator there is a limit to the small diameter of the cylindrical motor itself, and it also has problems in terms of automation of mounting. .
  • Patent Document 1 As a solution to the above problem, there is a vibration generator shown in Patent Document 1, which can be accommodated in the same space as a coin-type motor and can apply a vertical vibration to an attached substrate.
  • Patent Document 1 JP 2003-154314
  • Patent Document 2 JP-A-10-14194
  • the vibration generator shown in Patent Document 1 has a structure in which a movable part is supported by a panel, vibration can be obtained only at a frequency near the natural frequency. For example, when vibrating in accordance with music, a low frequency Vibration at around 10Hz becomes difficult.
  • the outer yoke which is a mover, is formed in an annular shape with a disk cut out, so that it can move sufficiently to obtain vibration. Difficult to gain weight as a child.
  • the multi-function actuator represented by Patent Document 2 has a problem of heat resistance of the material in the diaphragm that generates sound as a speaker due to the function used as a speaker sound source. There is a drawback that it is difficult to incorporate into the solder reflow process used during board assembly. In addition, since it has both sound source and vibration functions, it was difficult to satisfy both acoustic and vibration characteristics within a limited thickness.
  • the present invention specializes in the function as a vibration generating device, and has a configuration in which the manufacturing cost is reduced by reducing the number of parts compared to each of the above-described vibrating devices and rationalizing the configuration. It is an object of the present invention to provide a vibration generator that provides sufficient vibration to be sensed even when mounted on a mobile phone or the like by a driving method suitable for the above.
  • a housing having a magnet magnetized in a vibration direction, a case for housing the housing, and a cover force for closing the opening of the case And the structure of the coil force arranged to drive the mover.
  • the mover vibrates due to the interaction between the magnetic field generated by the coil and the magnetic field generated by the magnet of the mover, and vibrates due to the collision between the mover and the housing.
  • a plurality of the coils are arranged so as to surround the mover inside the housing, and the coil is wound around an axis perpendicular to the vibration direction of the mover.
  • the invention of claim 2 is characterized in that, in the invention of claim 1, the coil disposed around the mover is wound around a coil core of a magnetic material.
  • an opening is provided on the coil side around the magnet, in which the mover is disposed surrounding the magnet. It is characterized by the fact that it has a yoke force.
  • the invention according to claim 4 is characterized in that, in the flat vibration actuator according to claim 3, the coil core is disposed in an opening provided in the yoke.
  • the invention according to claim 5 is characterized in that in the invention according to any one of claims 1 to 4, the magnetic material is arranged outside the coil or the housing. .
  • the invention according to claim 6 is the invention according to any one of claims 1 to 5.
  • V is characterized by the fact that a damper is placed on the mover or case and cover.
  • the end face of the mover or the coil core is at least one of an R shape, a chamfered shape, and a tapered portion. It is characterized by having one.
  • the shaft extended in the vibration direction is disposed in the cover and the case through the mover, It is characterized by having a bearing at the part where the shaft and the mover come into contact.
  • the gap between the mover and the coil or the coil core is adjusted, so that the gap is not generated during driving. It is characterized by limiting the amount of movement of air that flows through the.
  • the coil disposed inside the housing is wound around an axis perpendicular to the vibration direction, a magnetic flux is generated in the vicinity of the coil center.
  • the magnet is surrounded by a plurality of coils.
  • the magnet and the coil generate a strong magnetic action (attraction or repulsion) between them, and the magnetic flux generated by the coil and the magnetic flux generated by the magnet can be used effectively.
  • the structure of the present invention having the above-described operation, it is possible to obtain a vibration actuator that generates strong vibration despite its small size and flatness.
  • the manufacturing cost can be reduced even if a plurality of coils are subtracted.
  • the mover is concentrated on the magnetic flux force S coil side by providing the magnet and the yoke having the opening on the coil side, and the magnetism of the magnetic circuit comprising the mover and the coil cage is obtained. Efficiency can be improved.
  • the end face of the mover or the coil core portion is processed by R, chamfering, taper or the like, so that the mover and the coil or the coil core are in contact with each other and are damaged.
  • the vibration of the mover can be prevented from being disturbed by contact.
  • the shaft extending in the vibration direction passes through the mover and is disposed in the cover, and the bearing is provided at a portion where the shaft and the mover come into contact with each other. Can be maintained in a certain direction, and stable vibration can be obtained without blurring.
  • FIG. 1 shows a cross-sectional view of the first embodiment used in the present invention.
  • the flat vibratory actuator according to the present embodiment includes a mover composed of a magnet 10, Danno 50, 51, coinore 20, 21, coinore core 60, 61, canopy 30, case 31 It is composed of force.
  • FIG. 14 shows a perspective view of a component configuration in the present embodiment.
  • the coils 20, 21 and the coil cores 60, 61 are indicated by different numbers in order to distinguish the two coils.
  • the coil 20 and the coil 21 have the same shape and are used for that.
  • Cores 60 and 61 have the same shape.
  • FIG. 10 shows the magnetic field direction of the magnet 10 used in this embodiment.
  • the vibration actuator shown in this embodiment is a cross-sectional view of FIG. 1.
  • FIG. 1 the attractive and repulsive forces acting between the coil cores 60 and 61 where the magnetic fluxes of the coils 20 and 21 are concentrated and the magnet 10 magnetized in the thickness direction shown in FIG. Therefore, the magnet 10 vibrates in the vertical direction (arrow direction in Fig. 13), and when AC current is input to the coil, it collides alternately with the cover 30 and the case 31 to transmit the vibration.
  • FIG. 7, FIG. 8, and FIG. Figures 11 and 12 show the coils used in each configuration.
  • the coil 22 wound around the coil core 62 shown in FIG. 11 has a rectangular parallelepiped shape in the direction perpendicular to the vibration direction, and the coil 23 wound around the coil core 63 shown in FIG. It is formed in a triangular prism shape by winding in a direction perpendicular to the direction.
  • various shapes of flat vibration actuators can be constructed.
  • the yokes 40 and 41 are fixed to the magnet 10, and the coil cores 60 and 61 are arranged in the yoke opening, whereby the magnetic flux of the magnet 10 concentrated on the yoke opening.
  • the magnetic circuit is composed of the magnetic flux of the coils 20 and 21 concentrated on the coil cores 60 and 61, and the magnetic efficiency of the magnetic circuit with the magnets 10 and 20 and 21 is improved compared to the case where the yokes 40 and 41 are not provided. Can do.
  • the gap between the magnet 10 alone or the movable body composed of the magnet 10 and the yokes 40, 41 and the coil 20, 21 alone or the wall surface formed by the coils 20, 21 and the coil cores 60, 61 is used.
  • the air flow By adjusting the air flow, the flow amount of air can be adjusted, and the structure using air as a damper can be obtained.
  • the mover when the mover contacts the coils 20, 21, etc., vibration is prevented during driving, the coils 20, 21, or the mover are prevented from being damaged, or assembly is facilitated.
  • R is provided at the ends of the mover and coil core 60, 61 for any purpose. [0037] However, this works even if it is not replaced by chamfering, taper processing or the like. In this embodiment, the coil cores 60, 61 used and other coil cores can be operated even when they are removed.
  • the damper 50, 51 is applied to the force bar 30 in order to reduce abnormal noise generated when the magnet 10 or the mover comprising the magnet 10 and the yokes 40, 41 and the cover 30, and the case 31 collide.
  • the case 31! / the same effect can be obtained if it is provided on the side of the movable element facing the cover 30 and the case 31. Even when the dampers 50 and 51 are removed, it is possible to operate the flat vibration actuator.
  • FIG. 3 shows a cross-sectional view of the second embodiment used in the present invention.
  • the flat vibration actuator according to the present embodiment includes a mover made of magnet 11 having a bearing 80, coils 20, 21 and a coil core arranged around the mover. 60, 61, dampers 52, 53, cover 30 and case 31 for housing them, and shaft 70 fixed to cover 30 and case 31 through bearing 80!
  • the mover is driven along the shaft 70, the amount of air movement between the mover and the coils 20, 21 and the coil cores 60, 61 can be easily limited, and the air is used as a damper. If used, stable vibration can be obtained at the point.
  • this embodiment can also be configured as flat vibration actuators of various shapes by using the coils shown in FIGS. 11, 12, and 13.
  • the yokes 42 and 43 are fixed to the magnet 11 as shown in FIG. 4, and the mover is composed of the magnet 11, the bearing 80, and the yokes 42 and 43.
  • the magnetic circuit is composed of the magnetic flux of the magnet 11 concentrated on the yoke opening and the magnetic flux of the coils 20 and 21 concentrated on the coil cores 60 and 61.
  • magnet 11 and coils 20, 21 The magnetic efficiency of the magnetic circuit can be improved.
  • the mover contacts with a coil or the like to prevent vibration during driving, or the core 20, 20, 22, 23 may be damaged, or the force of the mover may be damaged. This is a force that does not require any chamfering or taper machining.
  • the example flat vibration actuator works.
  • the coil cores 60 and 61 and other coil cores used in this embodiment can be operated in a state where the end faces are not processed.
  • the dampers 52 and 53 are connected to the force bar 30 in order to reduce the noise generated when the magnet 11 or the magnet 11 and the yokes 42 and 43 and the cover 30 and the case 31 collide with each other. Although it is provided on the case 31! /, The same effect can be obtained if it is provided on the side of the movable element facing the cover 30 and the case 31. Even in the state where the dampers 52 and 53 are removed, the flat vibration actuator of this embodiment can be operated.
  • FIG. 5 shows a cross-sectional view of a third embodiment used in the present invention.
  • the flat vibration actuator according to the present embodiment includes a mover composed of a magnet 11 having yokes 44 and 45 and a bearing 80, and coils 20 disposed around the mover. 21 and coil cores 60, 61, Danno 54, 55, coils 20, 21, coil cores 60, 61 and mover are placed in cover 30 and case 31, and are further fixed to cover 30 and case 31 through bearing 80. It is made up of Shaft 70.
  • the yokes 44 and 45 are formed so as not to wrap around to the side facing the coils 20 and 21 of the magnet 11, thereby reducing the thickness of the flat vibration actuator and meeting the purpose of small diameter is doing.
  • the operating principle of the vibration actuator according to this embodiment is the same as that described in the first embodiment. It is the same. In the present embodiment, since the shaft 70 is installed in the cover 30 and the case 31 through the bearing 80, the mover is driven along the shaft 70, and vibration without vibration is obtained.
  • the magnet 11 or the mover comprising the magnet 11 and the yokes 44 and 45 and the cover 30 and the dampers 54 and 55 are used to reduce the noise generated when the case 31 collides. Although it is provided on the case 31! /, The same effect can be obtained if it is provided on the side of the movable element facing the cover 30 and the case 31. Even when the dampers 54 and 55 are omitted, the vibration actuator can be operated.
  • the material of the coil cores 60, 61, 62, 63 is suitable for mass production, preferably using SUM, SPCE and magnetic materials. Further, with respect to each vibration actuator, by arranging the magnetic body 100 on the outer periphery of the vibration actuator 90 as shown in FIG. 6, there is no magnetic flux leaking to the outside with respect to the vibration actuator shown in the first to third embodiments. The magnetic efficiency of the magnetic circuit that also has the mover and coil force is improved.
  • each component used in the above three embodiments does not need to use a diaphragm for generating sound as a speaker, so it is not necessary to use a heat-sensitive material. Easy to incorporate into the rice field reflow process.
  • vibration actuator As described above, by using the vibration actuator according to the present embodiment, vibration that is sufficient for mass production that can obtain sufficient vibration to be detected by the collision of the mover despite the small and thin flat shape. It is possible to make an actuator.
  • FIG. 1 A sectional view according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view when a yoke is provided on the mover side in the first embodiment of the present invention.
  • ⁇ 3 Cross-sectional view according to the second embodiment of the present invention
  • FIG. 9 Upper cross-sectional view of the case where the case is a rectangular vibration actuator according to the present invention.
  • ⁇ 10 Schematic diagram of the magnetizing direction of the mover in the present invention
  • FIG. 11 Perspective view of coil used in Figs. 7 and 9
  • FIG. 12 is a perspective view of the coil used in FIG.

Abstract

L’invention concerne un générateur de vibration possédant une structure réalisant une économie de coûts et produisant des vibrations suffisamment fortes pour être perceptibles bien que la forme soit plate et fine lorsqu’installé dans un téléphone mobile ou similaire, au moyen d’une méthode d’entraînement appropriée pour la structure en spécialisant la fonction en tant que générateur de vibrations et en rendant petit le nombre de pièces, comparé à d’autres dispositifs vibreurs, pour obtenir une rationalisation. Un vibreur plat possède une structure comprenant un mouvement ayant un aimant magnétisé dans la direction de la vibration, un boîtier pour recevoir le mouvement, et un stator équipé de bobines pour entraîner le mouvement. Le mouvement vibre du fait de l’interaction entre le champ magnétique créé par la bobine et celui créé sur le mouvement par l’aimant. Le vibreur vibre en raison de collisions entre le mouvement et le boîtier. Les bobines sont disposées autour du mouvement dans le boîtier et enroulées dans la direction radiale lorsque vues dans la direction de vibration du mouvement. Grâce à cette structure, des vibrations suffisamment fortes pour être perçues sont produites tout en conservant la forme plate et fine.
PCT/JP2005/016508 2004-09-09 2005-09-08 Vibreur plat WO2006028165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004262940A JP2006075734A (ja) 2004-09-09 2004-09-09 偏平振動アクチュエータ
JP2004-262940 2004-09-09

Publications (1)

Publication Number Publication Date
WO2006028165A1 true WO2006028165A1 (fr) 2006-03-16

Family

ID=36036446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/016508 WO2006028165A1 (fr) 2004-09-09 2005-09-08 Vibreur plat

Country Status (3)

Country Link
JP (1) JP2006075734A (fr)
TW (1) TWI382879B (fr)
WO (1) WO2006028165A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017158582A1 (fr) * 2016-03-13 2017-09-21 Woojer Ltd Réseau de transducteurs haptiques à profil mince
WO2017158583A1 (fr) * 2016-03-18 2017-09-21 Woojer Ltd Transducteurs haptiques à profil mince
CN107251385A (zh) * 2015-03-31 2017-10-13 日本电产三协株式会社 线性致动器以及线性致动器的制造方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008225690A (ja) 2007-03-09 2008-09-25 Sony Corp 振動体、触覚機能付きの入力装置及び電子機器
US9380145B2 (en) 2010-11-05 2016-06-28 Qualcomm Incorporated Dynamic tapping force feedback for mobile devices
JP2015070729A (ja) * 2013-09-30 2015-04-13 日本電産コパル株式会社 情報端末処理装置及び振動発生装置
JP2015070730A (ja) * 2013-09-30 2015-04-13 日本電産コパル株式会社 振動アクチュエータ
JP6517591B2 (ja) * 2015-06-01 2019-05-22 日本電産サンキョー株式会社 リニアアクチュエータの製造方法およびリニアアクチュエータ
TWI599149B (zh) * 2016-08-02 2017-09-11 宏碁股份有限公司 振動產生裝置
JP7022617B2 (ja) * 2018-02-28 2022-02-18 ミネベアミツミ株式会社 振動アクチュエータ
CN208589896U (zh) * 2018-08-03 2019-03-08 瑞声科技（南京）有限公司 线性振动电机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0183190U (fr) * 1987-11-26 1989-06-02
JPH11197601A (ja) * 1998-01-09 1999-07-27 Star Micronics Co Ltd 携帯電子機器
JP2003220363A (ja) * 2002-01-29 2003-08-05 Citizen Electronics Co Ltd 軸方向駆動の振動体
JP2004050154A (ja) * 2002-07-24 2004-02-19 Fdk Corp 振動発生装置
JP2004186912A (ja) * 2002-12-02 2004-07-02 Namiki Precision Jewel Co Ltd 電気機械振動音響変換器及び携帯端末機器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231336A (en) * 1992-01-03 1993-07-27 Harman International Industries, Inc. Actuator for active vibration control
US5973422A (en) * 1998-07-24 1999-10-26 The Guitammer Company Low frequency vibrator
TW550873B (en) * 1999-05-17 2003-09-01 Nec Tokin Corp Electrodynamic type of vibration actuator and mobile communication terminal
US7078833B2 (en) * 2002-05-31 2006-07-18 Minebea Co., Ltd. Force motor with increased proportional stroke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0183190U (fr) * 1987-11-26 1989-06-02
JPH11197601A (ja) * 1998-01-09 1999-07-27 Star Micronics Co Ltd 携帯電子機器
JP2003220363A (ja) * 2002-01-29 2003-08-05 Citizen Electronics Co Ltd 軸方向駆動の振動体
JP2004050154A (ja) * 2002-07-24 2004-02-19 Fdk Corp 振動発生装置
JP2004186912A (ja) * 2002-12-02 2004-07-02 Namiki Precision Jewel Co Ltd 電気機械振動音響変換器及び携帯端末機器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107251385A (zh) * 2015-03-31 2017-10-13 日本电产三协株式会社 线性致动器以及线性致动器的制造方法
WO2017158582A1 (fr) * 2016-03-13 2017-09-21 Woojer Ltd Réseau de transducteurs haptiques à profil mince
US11936272B2 (en) 2016-03-13 2024-03-19 Woojer Ltd. Slim profile haptic transducer array
WO2017158583A1 (fr) * 2016-03-18 2017-09-21 Woojer Ltd Transducteurs haptiques à profil mince

Also Published As

Publication number Publication date
JP2006075734A (ja) 2006-03-23
TW200621385A (en) 2006-07-01
TWI382879B (zh) 2013-01-21

Similar Documents

Publication Publication Date Title
WO2006028165A1 (fr) Vibreur plat
WO2007029325A1 (fr) Actionneur de vibration à plat
JP4802307B2 (ja) 振動アクチュエータ
JP5923798B2 (ja) 振動発生装置
WO2016114383A1 (fr) Moteur à vibration linéaire
WO2016114384A1 (fr) Actionneur vibrant
WO2016017586A1 (fr) Moteur à vibrations linéaires
JP2019201486A (ja) リニア振動モータ及び電子機器
WO2017057315A1 (fr) Moteur à vibration linéaire
JP6663762B2 (ja) リニア振動モータ
TW521534B (en) Multifunction acoustic device
WO2017026373A1 (fr) Moteur à vibration linéaire et dispositif électronique portatif doté du moteur à vibration linéaire
JP2017221905A (ja) リニア振動モータ
JP6297478B2 (ja) リニア振動モータ
JP6333186B2 (ja) リニア振動モータ
WO2017002949A1 (fr) Moteur à vibration linéaire
JP2006068688A (ja) 振動アクチュエータ
WO2016084807A1 (fr) Moteur à vibrations linéaires
JP2001095212A (ja) 回転電機
CN114421730B (zh) 一种线性振动马达
WO2018008280A1 (fr) Moteur à vibration linéaire
JP6333187B2 (ja) リニア振動モータ
CN101257981A (zh) 扁平振动致动器
JP2005324162A (ja) 振動アクチュエータ
KR20080021716A (ko) 편평형 진동 액츄에이터

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase