WO2010147284A1 - Moteur a vibration lineaire - Google Patents

Moteur a vibration lineaire Download PDF

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Publication number
WO2010147284A1
WO2010147284A1 PCT/KR2010/000531 KR2010000531W WO2010147284A1 WO 2010147284 A1 WO2010147284 A1 WO 2010147284A1 KR 2010000531 W KR2010000531 W KR 2010000531W WO 2010147284 A1 WO2010147284 A1 WO 2010147284A1
Authority
WO
WIPO (PCT)
Prior art keywords
yoke
coupled
weight
magnet
vibration motor
Prior art date
Application number
PCT/KR2010/000531
Other languages
English (en)
Korean (ko)
Inventor
김한준
Original Assignee
유성정밀주식회사
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 유성정밀주식회사 filed Critical 유성정밀주식회사
Publication of WO2010147284A1 publication Critical patent/WO2010147284A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Definitions

  • the present invention relates to a linear vibration motor that can easily perform falling reliability improvement and assembling, and more particularly, first and second yokes and weights are formed in a structure surrounding a magnet of a driving part to improve falling reliability.
  • first and second yokes and weights are formed in a structure surrounding a magnet of a driving part to improve falling reliability.
  • the magnetic force can be further improved.
  • the magnet can be easily fitted to the central axis through the weight and the first yoke.
  • the present invention relates to a linear vibration motor capable of improving efficiency of workers by working after the worker forms the jig through the formed hole.
  • linear vibration motors are used in various fields such as communication devices such as mobile phones and earphones using bone vibration.
  • Such linear vibration motors have been developed in various forms to improve the strength of vibration, reliability of dropping, and reaction speed.
  • FIG. 1 illustrates a conventional linear vibration motor, in which a spring (s) and a magnet (m), a yoke (y), a weight (w), and a coil (c) are formed inside a case and the case.
  • a spring (s) and a magnet (m), a yoke (y), a weight (w), and a coil (c) are formed inside a case and the case.
  • the drive unit consisting of the magnet (m), yoke (y) acts to vertically vibrate.
  • the conventional linear vibration motor 300 is composed of a state in which the magnet (m) is attached to the yoke (y) with an adhesive, the drop of the magnet (m) from the yoke (y) during the drop, the high risk of this, In addition, it acted as a factor that drastically lowered the lightning fastness.
  • the magnet (m) should be assembled with the exact center axis, but conventionally there is no problem to solve this problem, there is a problem that the operator has to work by hand, in particular, one linear vibration motor There was also a problem that the assembly time required to assemble the 300 is long, productivity is lowered.
  • Linear vibration motor of the present invention for solving the above problems is the upper, lower housings; A spring coupled to the upper housing; A coil coupled to the lower housing; A first yoke coupled to the spring and having a space therein and having a stepped portion projecting downward toward the inner center, a first yoke coupled to the spring, and an edge of the first yoke And a driving unit including a weight, a magnet coupled to the first yoke and the weight, and a second yoke coupled to a lower side of the magnet and an inner side of the weight.
  • the linear vibration motor of the present invention is characterized in that the auxiliary magnet is further formed to compensate for the magnetic force in the space portion formed in the first yoke of the drive unit.
  • the magnet of the driving unit formed in the linear vibration motor of the present invention is formed in a ring shape, characterized in that formed on the outer side than the coil.
  • a groove and a silicon inserted into the groove are further formed below the weight of the drive unit, and the lower housing corresponds to the groove formed in the weight of the drive unit. It is characterized by forming a protrusion at the position.
  • the linear vibration motor of the present invention is configured in such a way that the first yoke, the weight, and the second yoke of the driving unit surround the magnet, thereby improving drop reliability.
  • the linear vibration motor assists in supplementing the magnetic force by using a space in the first yoke of the driving unit. Additional magnets can be configured to facilitate performance changes.
  • each component can be fixed through the jig, so that all the components can be worked along the central axis, and the assembly workability is improved. Can be.
  • the silicon formed in the groove on the lower side of the weight and the protrusion of the lower housing is a useful invention that can reduce the noise caused by the collision between the driving unit and the lower housing during the up and down movement of the driving unit.
  • FIG. 1 is a front view showing a conventional linear vibration motor.
  • FIG. 2 is a front view showing a linear vibration motor according to a first embodiment of the present invention.
  • Figure 3 is a front view showing a state in which the auxiliary magnet according to the first embodiment of the present invention.
  • FIG. 4 is an exploded perspective view showing a linear vibration motor according to a first embodiment of the present invention.
  • FIG. 5 is a front view showing another embodiment of the first yoke according to the first embodiment of the present invention.
  • Figure 6 is a front view showing a linear vibration motor according to a second embodiment of the present invention.
  • upper housing 20 lower housing
  • step portion 32 space portion
  • upper and lower housings 10 and 20 are formed, and a spring s is formed on the inner surface of the upper housing 10.
  • the lower housing 20 includes an FPCB (Flexible Printed Circuit Board) capable of applying power, and a coil (c) receiving power from the FPCB.
  • FPCB Flexible Printed Circuit Board
  • the driving unit 30 includes a first yoke 33 including a space portion 32 coupled to one side of the spring s, and a weight 34 coupled to the outside of the first yoke 33. And a magnet 35 coupled to the lower side of the first yoke 33 and the inside of the weight 34, and the second yoke coupled to the lower side of the magnet 35 and the inside of the weight 34. 36 is provided, and has a structure that can wrap the magnet (35).
  • the magnet 35 of the drive unit 30 is preferably formed to be disposed outside the coil (c).
  • a groove 34a and a silicon 34b inserted into the groove 34a are formed below the weight 34 of the driving unit 30, and the lower side is positioned at a position corresponding to the groove 34a of the weight 34.
  • the protrusion 20 is further formed on the upper side of the housing 20, so that the noise generated due to the collision with the lower housing 20 during the driving of the driving unit 30 may be reduced.
  • the space portion 32 formed in the first yoke 33 of the drive unit 30 is further configured to add a magnetic force of the shortage by further forming an auxiliary magnet (35a).
  • the stepped portion 31 may be formed longer than the auxiliary magnet 35a as shown in FIG. 3, or may be formed shorter than the downwardly protruding length of the auxiliary magnet 25a as shown in FIG. 5.
  • the stepped portion 31 of the first yoke 33 is formed to be shorter than the auxiliary magnet 35a, the amount of magnetic flux detouring to the first yoke 33 is relatively small, so that the second yoke ( The amount of magnetic flux directed to 36 increases, so that the magnetic force received by the coil c is improved.
  • holes H may be further formed in the upper and lower housings 10 and 20 and the spring s.
  • the linear vibration motor 50 of the present invention having the structure as described above has a structure in which the first and second yokes 31 and 34 and the weight 34 surround the magnet 35 of the driving unit 30 as described above.
  • the auxiliary magnet 35a for improving the magnetic force is further formed in the space portion 32 formed in the first yoke 33 of the drive unit 30 Naturally, the magnetic force is improved.
  • the linear vibration motor 50 of the present invention the first yoke 33 and the weight 34 of the drive unit 30 so that the magnet 35 is smoothly disposed on the central axis of the linear vibration motor 50 during the assembly process. It is coupled by the assembler can easily work, in particular, the upper and lower housings (10, 20) and the spring (s) to form a hole (H), respectively, through the jig (not shown in the drawing) after By assembling, the assembling person can easily and quickly and accurately achieve the effect of assembling, and in particular, the auxiliary magnet 35a is formed in the space 32 of the first yoke 33. In this case, if the jig is divided into upper and lower sides, and then assembled, it can be quickly assembled.
  • the linear vibration motor 50 according to the first embodiment of the present invention which is assembled as described above, is inserted into the groove 34a and the groove 34a formed in the weight 34 of the driving unit 30 during operation.
  • the protruding portion 21 formed in the silicon 34b and the lower housing 20 can further expect the effect of noise reduction.
  • Upper and lower housings 110 and 120 as shown in Figure 6; A spring (s) coupled to the upper housing (10); A coil (c) coupled to the lower housing (120); A first yoke 133 coupled to the spring s and having a space 132 formed therein, a weight 134 coupled to an edge of the first yoke 133, and the first yoke
  • the magnet 135 coupled to the weight 134 and the weight 134, the auxiliary magnet 135a coupled to the space 132 formed in the first yoke 133, the lower side of the magnet 135 and
  • a driving unit 130 including a second yoke 136 coupled to the inside of the weight 134.
  • the stepped portion 131 of the first embodiment is removed from the first yoke 133 and the auxiliary magnet 135a is formed to form the stepped portion formed in the first yoke 133 on the magnetic circuit. Since the interval is narrowed by the thickness of 131, the magnetic force received by the coil (c) can be improved.
  • the linear vibration motor 150 according to the second embodiment of the present invention has a groove 134a formed in the weight 134 of the driving unit 130 and silicon 134b inserted into the groove 134a and the lower side during operation.
  • the protrusion 121 formed in the housing 120 can further expect the effect of noise reduction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

La présente invention concerne un moteur à vibration linéaire, comportant des boîtiers supérieur et inférieur ; un ressort couplé avec le boîtier supérieur ; une bobine couplée avec le boîtier inférieur ; et une partie de commande comprenant une première culasse qui est couplée avec le ressort, formée avec un entrefer à l'intérieur et une protubérance faisant saillie vers le bas dans le centre de celui-ci, un contrepoids couplé avec un bord de la première culasse, un aimant couplé avec la première culasse et le contrepoids, et une seconde culasse couplée avec la face inférieure de l'aimant et à l'intérieur du contrepoids. Les première et seconde culasses et le contrepoids sont formés dans la structure entourant l'aimant dans la partie de commande, permettant ainsi l'amélioration de fiabilité de chute de tension. Un aimant auxiliaire est formé dans l'entrefer de la première culasse de la partie de commande pour améliorer davantage la force magnétique. L'aimant peut facilement être aligné avec un arbre central via le contrepoids et la première culasse lors de la procédure d'assemblage. En outre, un travailleur peut former un trou ménagé dans chaque composant grâce à un gabarit, favorisant ainsi l'amélioration de l'efficacité de travail.
PCT/KR2010/000531 2009-06-16 2010-01-29 Moteur a vibration lineaire WO2010147284A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090053618A KR100934584B1 (ko) 2009-06-16 2009-06-16 리니어 진동모터
KR10-2009-0053618 2009-06-16

Publications (1)

Publication Number Publication Date
WO2010147284A1 true WO2010147284A1 (fr) 2010-12-23

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KR (1) KR100934584B1 (fr)
WO (1) WO2010147284A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896084A (zh) * 2011-07-29 2013-01-30 三星电机株式会社 振动发生装置
CN107257190A (zh) * 2017-08-11 2017-10-17 歌尔股份有限公司 线性振动马达
CN107276361A (zh) * 2017-08-11 2017-10-20 歌尔股份有限公司 一种线性振动马达
CN107317454A (zh) * 2017-08-11 2017-11-03 歌尔股份有限公司 线性振动马达
WO2017211070A1 (fr) * 2016-06-06 2017-12-14 歌尔股份有限公司 Moteur à vibration linéaire
CN109040916A (zh) * 2018-07-02 2018-12-18 歌尔股份有限公司 用于激励器的振子组件、激励器以及屏幕发声装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100984046B1 (ko) 2010-01-05 2010-09-28 나영목 리니어 타입 진동모터
KR100995000B1 (ko) * 2010-02-18 2010-11-18 자화전자(주) 선형 진동 발생장치
KR101004879B1 (ko) 2010-05-25 2010-12-28 삼성전기주식회사 선형 진동자
KR101146371B1 (ko) * 2010-07-12 2012-05-17 엘지이노텍 주식회사 진동 모터
KR101046044B1 (ko) 2010-10-04 2011-07-01 삼성전기주식회사 선형 진동자
KR101142282B1 (ko) * 2010-10-11 2012-05-07 자화전자(주) 선형 진동 발생 장치
KR101197873B1 (ko) * 2010-10-18 2012-11-05 삼성전기주식회사 선형 진동자
KR101046003B1 (ko) 2010-11-17 2011-07-04 삼성전기주식회사 선형 진동자
KR101055508B1 (ko) 2010-12-31 2011-08-08 삼성전기주식회사 선형 진동모터
KR101506556B1 (ko) * 2011-05-09 2015-03-30 삼성전기주식회사 선형진동모터
US8872394B2 (en) 2011-06-16 2014-10-28 Jahwa Electronics Co., Ltd. Linear vibration generating apparatus
KR101354773B1 (ko) * 2011-08-04 2014-01-23 삼성전기주식회사 선형진동모터
KR101196632B1 (ko) * 2012-01-20 2012-11-02 엘지이노텍 주식회사 진동 모터
KR101650162B1 (ko) * 2015-03-02 2016-08-23 자화전자(주) 선형진동 발생장치
KR102254698B1 (ko) * 2020-02-27 2021-05-24 주식회사 세이렌어쿠스틱스 익사이터 드라이버

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KR20050083528A (ko) * 2004-02-23 2005-08-26 삼성전기주식회사 공진주파수를 이용한 선형 진동모터
KR20060120859A (ko) * 2005-05-23 2006-11-28 자화전자(주) 수평진동형 리니어 타입 진동모터
KR20090048677A (ko) * 2007-11-12 2009-05-15 엘지이노텍 주식회사 진동 모터 및 그 제조방법

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FI112261B (fi) * 2002-05-06 2003-11-14 Tamfelt Oyj Abp Paperikonekudos

Patent Citations (3)

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KR20050083528A (ko) * 2004-02-23 2005-08-26 삼성전기주식회사 공진주파수를 이용한 선형 진동모터
KR20060120859A (ko) * 2005-05-23 2006-11-28 자화전자(주) 수평진동형 리니어 타입 진동모터
KR20090048677A (ko) * 2007-11-12 2009-05-15 엘지이노텍 주식회사 진동 모터 및 그 제조방법

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896084A (zh) * 2011-07-29 2013-01-30 三星电机株式会社 振动发生装置
US20130026860A1 (en) * 2011-07-29 2013-01-31 Samsung Electro-Mechanics Co., Ltd. Vibration-generating device
WO2017211070A1 (fr) * 2016-06-06 2017-12-14 歌尔股份有限公司 Moteur à vibration linéaire
US11025146B2 (en) 2016-06-06 2021-06-01 Goertek Inc. Linear vibration motor having elastic pieces provided with vibration arms
CN107257190A (zh) * 2017-08-11 2017-10-17 歌尔股份有限公司 线性振动马达
CN107276361A (zh) * 2017-08-11 2017-10-20 歌尔股份有限公司 一种线性振动马达
CN107317454A (zh) * 2017-08-11 2017-11-03 歌尔股份有限公司 线性振动马达
CN107257190B (zh) * 2017-08-11 2020-06-02 歌尔股份有限公司 线性振动马达
CN109040916A (zh) * 2018-07-02 2018-12-18 歌尔股份有限公司 用于激励器的振子组件、激励器以及屏幕发声装置
CN109040916B (zh) * 2018-07-02 2020-09-22 歌尔股份有限公司 用于激励器的振子组件、激励器以及屏幕发声装置

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Publication number Publication date
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