WO2012018171A1 - Moteur à vibration linéaire - Google Patents

Moteur à vibration linéaire Download PDF

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Publication number
WO2012018171A1
WO2012018171A1 PCT/KR2011/002612 KR2011002612W WO2012018171A1 WO 2012018171 A1 WO2012018171 A1 WO 2012018171A1 KR 2011002612 W KR2011002612 W KR 2011002612W WO 2012018171 A1 WO2012018171 A1 WO 2012018171A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibrator
case
cover
spacer
plate portion
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2011/002612
Other languages
English (en)
Korean (ko)
Inventor
송청담
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BSE Co Ltd
Original Assignee
DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BSE Co Ltd
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 DONGGUAN BAOXING ELECTRONICS Co Ltd, RONGCHENG BAOXING ELECTRONIC CO Ltd, TIANJIN BSE ELECTRONICS CO Ltd, BSE Co Ltd filed Critical DONGGUAN BAOXING ELECTRONICS Co Ltd
Publication of WO2012018171A1 publication Critical patent/WO2012018171A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system

Definitions

  • the present invention relates to a vibration motor, and more particularly to a linear vibration motor vibrating by the vertical movement of the vibrator.
  • one of the essential functions of a communication device is an incoming call function.
  • Commonly used types such as melody, voice function such as melody and bell and vibration function to shake the device.
  • the double vibration function is used to prevent the melody or bell from being transmitted to the outside through the speaker to damage others.
  • it is common to drive the small vibration motor so that the driving force is transmitted to the case of the device so that the device can vibrate.
  • Vibration motors currently applied to mobile phones are classified into a coin type having a thin thickness and a bar type having a long shape according to its shape.
  • the vibration is generated by the rotational force due to the weight asymmetrical structure, so the reaction speed by the instantaneous input is slow, the current consumption by the DC driving is high, and the commutator for supplying the current is There is a problem that the life is shortened by the friction of the commutation brush.
  • An object of the present invention is to solve the above problems, to provide a linear vibration motor that can increase the reaction speed by the instantaneous input, lower the current consumption by the DC drive, and extend the life.
  • the present invention is a cylindrical case with one surface opened; A vibrator accommodated in the case and vibrating; A spacer having both sides opened and mounted in the case and receiving the vibrator therein; A cover coupled to the opened end of the case by curing while seated on the spacer; A three-dimensional shape in which a central portion protrudes, an edge of which is inserted and supported between the spacer and the cover, and a central portion of which is coupled to the vibrator, the suspension for elastically supporting the vibrator; And a substrate mounted on the bottom of the cover and mounted with the voice coil interacting with the vibrator.
  • the suspension may include a circular ring-shaped outer plate portion inserted between the spacer and the cover; An inner plate portion formed to have a height difference from the outer plate portion and having a diameter smaller than that of the outer plate portion and coupled to the vibrator; And a connecting plate portion connecting the outer plate portion and the inner plate portion.
  • a groove is formed in the open end of the case being cured, and the substrate is exposed to the outside through the groove.
  • the vibrator including the magnet and the mass moves up and down by the elastic force of the suspension, the vibration is generated, the reaction speed by the instantaneous input of the signal input from the outside is fast, and the current consumption by the DC drive is reduced, Unlike the conventional art, since there is no friction, the life of the vibration motor is extended.
  • the spacer is mounted in the case, the suspension and the cover are seated on the open upper surface of the spacer in turn, and the assembly is completed by currying the open end of the case, thereby simplifying the assembly process and allowing the vibrator to stably vibrate. Can be.
  • FIG. 1 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention.
  • FIG. 2 is a combined perspective view of a linear vibration motor according to an embodiment of the present invention.
  • Figure 3 is a cutaway perspective view of a linear vibration motor according to an embodiment of the present invention.
  • Figure 4 is a side cross-sectional view of a linear vibration motor according to an embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a linear vibration motor according to an embodiment of the present invention.
  • the linear vibration motor includes a case 10, a vibrator 20, a spacer 30, a cover 40, a suspension 50, and a substrate 60.
  • the case 10 is formed in a cylindrical shape with one surface open, and a groove 10a is formed at one side of the open end portion.
  • the vibrator 20 When the external signal is applied to the voice coil 70 mounted on the substrate 60, the vibrator 20 resonates up and down by interaction with an electromagnetic force generated by the voice coil 70.
  • This vibrator 20 includes a magnet 21, a yoke 22, a plate 23, and a mass 24.
  • the spacer 30 is mounted in the case 10 as a cylindrical having both sides opened, and the vibrator 20 is accommodated therein.
  • a metal, a plastic, a polymer, or the like may be used as the material of the spacer 30, a metal, a plastic, a polymer, or the like.
  • the cover 40 closes an open surface of the case 10 to prevent damage to internal components.
  • the suspension 50 is a three-dimensional shape in which the central portion protrudes downward, is formed so as to have a height difference with the outer plate portion 51, the outer plate portion 51 of the circular ring shape, the diameter of the circular ring shape smaller than the outer plate portion 51 It includes an inner plate portion 52, a connecting plate portion 53 for connecting the outer plate portion 51 and the inner plate portion 52.
  • the connecting plate portion 53 is formed in a curved shape and provided with two or more so as to elastically connect the outer plate portion 51 and the inner plate portion 52 in a constant shape and interval with the through hole 54 therebetween.
  • the substrate 60 is adhered to the bottom of the cover 40, and the voice coil 70 is mounted on the bottom of the cover 40.
  • One side of the substrate 60 is formed with an exposed portion 61 exposed to the outside of the cover 40.
  • a flexible printed circuit board (FPCB) is used as the substrate 60, and a pattern of a predetermined shape is formed on the substrate 60.
  • Figure 2 is a combined perspective view of a linear vibration motor according to an embodiment of the present invention
  • Figure 3 is a cutaway perspective view of a linear vibration motor according to an embodiment of the present invention
  • Figure 4 is a linear according to an embodiment of the present invention A side cross-sectional view of a vibration motor.
  • the open end of the case 10 fixes the suspension 50 and the cover 40 by curing in a state in which the suspension 50 and the cover 40 are sequentially seated on the opened surface of the spacer 30. At this time, the exposed portion 61 of the substrate 60 is exposed to the outside through the groove 10a formed at the open end of the case 10 to receive a signal from the outside.
  • the magnet 21 constituting the vibrator 20 has a magnetic force
  • the yoke 22 surrounds the magnet 21 and is coupled with the bottom of the magnet 21
  • the plate 23 is an upper surface of the magnet 21.
  • the mass 24 is attached to the outer side of the yoke 22 and has a mass of a predetermined size.
  • the gap 25 into which the voice coil 70 is inserted is formed between the side of the magnet 21 and the plate 23 and the inner surface of the yoke 22.
  • the plate 23 concentrates the magnetic field generated from the magnet 21 in a specific direction.
  • the cover 40 is fixed to the open end of the case 10 by curing while seated on the outer plate portion 51 of the suspension 50 on the spacer 30, so that the internal parts are not exposed to the outside. It is finished beautifully. Therefore, the internal parts can be prevented from being broken even when they collide with other parts, and the internal parts are tightly coupled by the pressure at the time of currying.
  • the outer plate portion 51 constituting the suspension 50 is supported while being inserted between the spacer 30 and the cover 40, and the inner plate portion 52 is joined to the upper surface of the yoke 22 of the vibrator 20. As a result, the vibrator 20 is elastically supported.
  • the upper, lower or upper, lower sides of the periphery of the suspension 50 may be provided with a vibration auxiliary member (not shown) of a plastic, metal or polymer series to reinforce or cancel the vibration characteristics of the vibrator 20. .
  • the exposed portion 61 of the substrate 60 is exposed to the outside through the groove 10a formed at the open end of the case 10 to receive a signal from the outside, the signal received from the exposed portion 61
  • the pattern is transferred to the voice coil 70 through the pattern of the substrate 60.
  • the voice coil 70 is formed in a cylindrical tube shape and is connected to a pattern of the substrate 60 to receive an external signal through the substrate 60.
  • the voice coil 70 is located in the air gap 25 formed between the magnet 21 and the plate 23 and the yoke 22 during assembly.
  • the magnet 21 and the plate 23 are mounted in the yoke 22 of the vibrator 20, the mass body 24 is coupled to the outside of the yoke 22, and then the mass body on the inner plate portion 52 of the suspension 50. Attach (24).
  • the spacer 30 is placed in the case 10, and the vibrator 20 and the inner plate part 52 of the suspension 50 are inserted into the spacer 30.
  • the outer plate portion 51 of the suspension 50 is seated on the open upper end of the spacer (30).
  • the substrate 60 on which the voice coil 70 is mounted is bonded to the bottom surface of the cover 40, and finally, the cover 40 is placed thereon and assembled by curing the open end of the case 10 inward. This is done.
  • the open end of the case 10 is cured, the outer plate portion 51 and the cover 40 of the suspension 50 are in close contact with the spacer 30.
  • a magnetic field having a constant intensity and direction is generated.
  • the plate 23 concentrates the magnetic field generated in the magnet 21 in a specific direction.
  • the signal input from the outside that is, from the main board of the portable terminal through the exposed portion 61 of the substrate 60 is transmitted to the voice coil 70 through a pattern.
  • the variable voice field having a direction and intensity is generated in the voice coil 70 according to the signal.
  • the vibrator 20 has an inherent frequency, and when it matches the frequency according to the signal input from the outside as described above will vibrate. At this time, the voice coil 70 maintains a stopped state.
  • the vibrator 20 is lowered in the drawing due to the repulsive force, in the case of having different poles It rises by drawing.
  • the vibrator 20 resonates up and down, and the vibration caused by the movement is transmitted to the case 10 and the cover 40 through the suspension 50 to vibrate the entire vibration motor, and finally Causes the communication device to vibrate.
  • the linear vibration motor having the configuration and action as described above, so that the vibrator 20 including the magnet 21 and the mass body 24 moves up and down by the elastic force of the suspension 50 to generate vibration.
  • the reaction speed by the instantaneous input of the signal input from the outside is fast, the current consumption by the DC drive is reduced, and unlike the conventional, the life of the vibration motor is extended because there is no friction.
  • the ends of the substrate 60 are finished in a beautiful state so that they do not cause scratches even when collided with other components, and spot welding is not required, thereby improving productivity.
  • the defect rate is low, and the cost of initial facility investment can be reduced.
  • the spacer 30 is mounted in the case 10, the suspension 50 and the cover 40 are sequentially seated on the open upper surface of the spacer 30, and then the open end of the case 10 is cured.
  • the assembly process is simplified and the vibrator 20 can be stably vibrated.

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 qui vibre sous l'effet du mouvement vertical d'un vibrateur. L'invention décrite comprend : un emballage sous la forme d'une boîte qui est ouverte sur une partie de la surface ; un vibrateur accueilli dans l'emballage et qui vibre à l'intérieur de celui-ci ; un élément d'espacement réalisé en forme de cylindre qui est ouvert sur les deux portions latérales, qui est monté dans l'emballage et dans lequel est accueilli le vibrateur ; un cache accouplé par roulage avec une extrémité ouverte de l'emballage dans un état dans lequel le cache est monté sur l'élément d'espacement ; une suspension cubique destinée à faire saillie par sa portion centrale, possédant une portion de bordure insérée et supportée entre l'élément d'espacement et le cache, et la portion centrale connectée avec le vibrateur de manière à supporter le vibrateur avec élasticité ; et un substrat positionné sur la surface inférieure du cache et empilé avec une bobine vocale qui interagit avec le vibrateur. Conformément à la vibration linéaire de la présente invention décrite ci-dessus, le vibrateur comprend un aimant et une masse qui se déplace verticalement sous l'effet de la force élastique de la suspension, générant ainsi une vibration. Par conséquent, une vitesse de réaction à l'entrée instantanée d'un signal qui est acheminé depuis l'extérieur est rapide, ce qui réduit la consommation d'énergie par pilotage CC et diffère de l'art antérieur en ce que la durée de vie du haut-parleur est accrue car aucune friction n'est générée.
PCT/KR2011/002612 2010-08-06 2011-04-13 Moteur à vibration linéaire Ceased WO2012018171A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0075883 2010-08-06
KR1020100075883A KR101130064B1 (ko) 2010-08-06 2010-08-06 선형 진동모터

Publications (1)

Publication Number Publication Date
WO2012018171A1 true WO2012018171A1 (fr) 2012-02-09

Family

ID=45462516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/002612 Ceased WO2012018171A1 (fr) 2010-08-06 2011-04-13 Moteur à vibration linéaire

Country Status (4)

Country Link
KR (1) KR101130064B1 (fr)
CN (2) CN102377314A (fr)
TW (1) TW201214931A (fr)
WO (1) WO2012018171A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671200A (zh) * 2020-12-15 2021-04-16 歌尔股份有限公司 线性振动电机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101309405B1 (ko) * 2012-01-20 2013-09-17 삼성전기주식회사 진동 모터
KR101367950B1 (ko) * 2012-09-10 2014-02-27 삼성전기주식회사 선형진동자
CN106849590A (zh) * 2017-02-08 2017-06-13 维沃移动通信有限公司 一种线性马达和电子设备
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
CN111431371B (zh) * 2020-04-29 2025-02-28 四川安和精密电子电器股份有限公司 一种扁平振动马达及其制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003251278A (ja) * 2002-03-07 2003-09-09 Nec Tokin Corp 多機能振動アクチュエータ
KR20050122341A (ko) * 2004-06-24 2005-12-29 삼성전기주식회사 선형 진동자
KR20060046360A (ko) * 2004-06-23 2006-05-17 삼성전기주식회사 수직진동자
KR20070075328A (ko) * 2006-01-10 2007-07-18 가부시키가이샤 시티즌 덴시 진동체

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002239459A (ja) 2001-02-15 2002-08-27 Nec Tokin Corp 振動アクチュエータ
KR100549880B1 (ko) * 2003-07-05 2006-02-06 엘지이노텍 주식회사 진동장치 구조
KR100558456B1 (ko) * 2004-06-29 2006-03-10 삼성전기주식회사 표면실장이 가능한 선형 진동자

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003251278A (ja) * 2002-03-07 2003-09-09 Nec Tokin Corp 多機能振動アクチュエータ
KR20060046360A (ko) * 2004-06-23 2006-05-17 삼성전기주식회사 수직진동자
KR20050122341A (ko) * 2004-06-24 2005-12-29 삼성전기주식회사 선형 진동자
KR20070075328A (ko) * 2006-01-10 2007-07-18 가부시키가이샤 시티즌 덴시 진동체

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671200A (zh) * 2020-12-15 2021-04-16 歌尔股份有限公司 线性振动电机

Also Published As

Publication number Publication date
KR20120013718A (ko) 2012-02-15
KR101130064B1 (ko) 2012-03-28
CN202121479U (zh) 2012-01-18
CN102377314A (zh) 2012-03-14
TW201214931A (en) 2012-04-01

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