WO2007074793A1 - 多機能型振動アクチュエータ - Google Patents
多機能型振動アクチュエータ Download PDFInfo
- Publication number
- WO2007074793A1 WO2007074793A1 PCT/JP2006/325825 JP2006325825W WO2007074793A1 WO 2007074793 A1 WO2007074793 A1 WO 2007074793A1 JP 2006325825 W JP2006325825 W JP 2006325825W WO 2007074793 A1 WO2007074793 A1 WO 2007074793A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- magnetic circuit
- vibration actuator
- suspension
- cover
- 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
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
-
- 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
-
- 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
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/10—Telephone receivers
Definitions
- the present invention relates to a multi-function vibration actuator that is mounted on a mobile phone, a small portable electronic device, and the like and has a vibration generating function and a speaker function as a single unit.
- mobile communication devices typified by mobile phones include sound emission means for notifying incoming calls by voice and means for generating vibrations such as manner mode, which transmits incoming calls to users by vibration. There are things to prepare.
- a vibration generating device that generates vibration and a speaker that reproduces sound have been mounted as separate components.
- a multi-function vibration actuator having a vibration generating function and a sound reproducing function integrated by sharing a circuit portion is used.
- a vibratory actuator is shown in Patent No. 3291468 (hereinafter referred to as Cited Reference 1), and has been filed and registered.
- the diaphragm resonance frequency is input to the voice coil by inputting an acoustic frequency of 150 to several tens of kHz to the voice coil, and sound is emitted and vibration is generated.
- a low frequency of about 10 to 150 Hz, which is the resonance frequency of the circuit, is input to the voice coil as a drive signal, and only the magnetic circuit is vibrated to generate vibration.
- the internal structure can be damaged when dropped by providing a stagger. It has a structure to prevent.
- a protrusion provided on the inner wall of the housing is provided for impact on the voice coil side, while a protrusion provided near the center of the cover is provided for impact on the cover side.
- Cited Document 1 it is possible to limit the movable range of the magnetic circuit by the protrusion on the inner wall of the housing and the protrusion on the cover side, and prevent damage to the internal structure due to the magnetic circuit even when subjected to an impact such as dropping. Can do.
- Cited Document 1 there is a force that has an advantage with respect to impact such as dropping when compared with other multi-function vibration actuators.
- the structure has an impact on the cover side. Having a problem with absorption.
- Cited Document 2 Japanese Patent Application Laid-Open No. 2000-333282 (hereinafter referred to as Cited Document 2) has been filed and published.
- Cited document 2 is characterized in that the protrusions provided in cited document 1 are provided at two upper and lower portions of the magnetic circuit with respect to the inner wall of the housing.
- the number of parts is reduced by integrally forming the weight and the yoke, and the weight does not release the yoke force at the time of impact, and the number of parts is small.
- it is designed to prevent damage to the multifunctional vibration actuator body and damage to the inside of the actuator during impacts.
- Patent Document 1 Japanese Patent No. 3291468
- Patent Document 2 JP 2000-333282 A
- the cited document 2 has a problem that the housing must be divided into upper and lower parts because stoppers are provided on the upper and lower sides in the housing.
- the shape of the strobe portion provided as the protrusion is notched, and as a result, the strength of the strobe portion is lowered.
- the present invention provides a multi-function vibration actuator that is easy to assemble with a simple structure that does not break when subjected to an impact such as dropping. For this purpose.
- a pole piece having a plate-like magnetic strength is attached to one surface of a magnet having a plate shape magnetized in the thickness direction, and the other surface is attached.
- a magnetic circuit having a magnetic gap formed between the end of the pole piece and the yoke is attached by attaching a yoke that also has magnetic force, and the magnetic circuit has a substantially cylindrical shape that houses the magnetic circuit by a suspension.
- a coil attached to a diaphragm that is supported on the inner wall of the housing and that covers one opening of the housing is disposed in the magnetic gap, and an alternating current is input to the coil, whereby the magnetic circuit or the diaphragm is arranged.
- a multi-function type vibration that vibrates and covers the other side of the housing with a cover.
- the suspension has a structure in which an annular inner ring portion and an outer ring portion are connected by a support portion, and the outer ring portion projects beyond the outer periphery of the magnetic circuit toward the center of the housing.
- the cover has a substantially cylindrical shape in which a step portion is provided and one opening is closed, and the cylindrical shape is
- the present invention is characterized in that the suspension outer ring portion, which supports the magnetic circuit by the inner ring portion, is interposed between the housing and the cover stepped portion.
- the suspension is made of a magnetic material, and the inner peripheral side surface of the suspension inner ring portion forms one end of the magnetic gap. Further, the suspension is installed on the edge of the magnetic circuit.
- a through hole is provided in the cover or the housing.
- the diaphragm outer edge portion provided with the coil is the housing, and a grill having a substantially disk-shaped outer edge portion. It is characterized by being sandwiched between the two.
- the distance between the outer side surface of the magnetic circuit and the side surface of the inner wall of the housing or the cover having a cylindrical shape is a housing or cover. It is characterized by 0 to 2.5% of the inner wall radius.
- the conventional multi-function vibration actuator performs the limitation of the movable range related to the magnetic circuit, which has been performed by separate components, and the elastic support of the magnetic circuit in the housing by one component.
- the suspension's outer ring part with an inner ring part and an outer ring part is provided so that the housing force also protrudes, so that it can be subjected to impacts such as dropping.
- the outer ring portion is in contact with the outer edge of the magnetic circuit to prevent damage to the voice coil or the like.
- the cover is provided with a step portion, and the suspension outer ring portion is fixed to the step portion. Since the movable range of the cover side of the magnetic circuit is limited by the bottom, it is sufficient to limit only the diaphragm side when limiting the movable range of the magnetic circuit. It becomes possible to restrict.
- the suspension is made of a magnetic material, thereby reducing the thickness of the entire apparatus. The effect of improving the magnetic efficiency in the suppressed state can be obtained.
- the gap between the side wall of the housing or cover and the side surface of the magnetic circuit By setting it within the range of 0 to 2.5% of the radius, it can be used as a damper by limiting the amount of air movement in the vertical space with the magnetic circuit in between.
- FIG. 1, FIG. 2 and FIG. 3 show a side sectional view and an exploded perspective view of the first embodiment of the present invention, and a plan view of a suspension used in the embodiment.
- the multi-function vibration actuator of the present embodiment has a magnetic circuit comprising a pole piece 6, a magnet 7 and a yoke 8, and the magnetic circuit is connected to the inner ring portion B. Therefore, the suspension 9 made of a magnetic material supported by the cover 1, the housing 2 that fixes the suspension 9 between the cover 1 and the diaphragm 4 fixed on the housing 2, and the diaphragm 4 is fixed.
- the sound emission hole H is provided in the cover 1 to improve the acoustic characteristics, and the effect is obtained.
- the gap G between the magnetic circuit and the cover 1 is set to a size of 2.5% or less with respect to the radius of the inner wall surface of the cover 1 that is facing, and in the space V on the lower side of the magnetic circuit By restricting the amount of air movement, it is possible to drive the magnetic circuit stably.
- the yoke 8 has a shape integrated with the weight, so that the number of parts is reduced, and the weight does not cause a problem such as dropping of the yoke force upon impact such as dropping.
- the suspension 9 is fixed so as to form the protruding portion 0 on the cover 1, and the outer ring portion A is fixed to the cover 1 by the housing 2.
- the magnetic circuit can be prevented from coming into contact with the diaphragm 4 and the voice coil 5 when subjected to an impact such as dropping. Since the suspension outer ring part A is reinforced by the housing 2, the outer ring part A can be prevented from being deformed by an excessive impact.
- the suspension 9 used in the present example also has a magnetic strength, which is also magnetic.
- a magnetic gap M is formed between the pole piece 6 and the side surface of the pole piece 6 via a yoke 8 that also has physical strength to improve magnetic efficiency.
- the opening of the cover 1 is provided only on one side and is closed by the diaphragm 4 and the grill 3, the movable range of the magnetic circuit is shown in FIG. It is possible to limit between 0 and the bottom of the cover 1, and it is possible to prevent damage and deformation of parts in the event of an impact such as dropping without providing a new protrusion inside the cover 1.
- the fixing strength of the diaphragm 4 is improved by sandwiching the outer edge portion of the diaphragm 4 between the grill 3 attached to the cover 1 and the housing 2. ! / Get the effect!
- the multi-function vibration actuator As described above, by using the multi-function vibration actuator shown in the present embodiment, the multi-function vibration actuator is excellent in impact resistance such as dropping and can be easily assembled by a simple structure. It is possible to provide a couator.
- FIG. 1 is a side sectional view of a multi-function vibration actuator in an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of a multi-function vibration actuator according to an embodiment of the present invention.
- FIG. 3 is a plan view of a suspension used in an embodiment of the present invention.
- FIG. 4 Magnetic circuit movable range of the multi-function type vibration actuator in the embodiment of the present invention
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06843209A EP1972388B8 (en) | 2005-12-27 | 2006-12-26 | Multifunction vibration actuator |
| US12/158,453 US8400282B2 (en) | 2005-12-27 | 2006-12-26 | Multi-function vibration actuator |
| CN2006800470956A CN101330988B (zh) | 2005-12-27 | 2006-12-26 | 多功能型振动促动器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-374243 | 2005-12-27 | ||
| JP2005374243A JP4867031B2 (ja) | 2005-12-27 | 2005-12-27 | 多機能型振動アクチュエータ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007074793A1 true WO2007074793A1 (ja) | 2007-07-05 |
Family
ID=38218013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/325825 Ceased WO2007074793A1 (ja) | 2005-12-27 | 2006-12-26 | 多機能型振動アクチュエータ |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8400282B2 (ja) |
| EP (1) | EP1972388B8 (ja) |
| JP (1) | JP4867031B2 (ja) |
| KR (1) | KR100990706B1 (ja) |
| CN (1) | CN101330988B (ja) |
| WO (1) | WO2007074793A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766033A (zh) * | 2007-09-13 | 2010-06-30 | 并木精密宝石株式会社 | 多功能型振动促动器的止动器结构 |
| US20120169153A1 (en) * | 2009-07-01 | 2012-07-05 | Namiki Seimitsu Houseki Kabushiki Kaisha | Structure of vibration actuator |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5007413B2 (ja) | 2007-07-19 | 2012-08-22 | 並木精密宝石株式会社 | サスペンション構造 |
| JP5076237B2 (ja) * | 2007-10-31 | 2012-11-21 | 並木精密宝石株式会社 | 多機能型振動アクチュエータの磁気回路構造 |
| WO2011013462A1 (ja) * | 2009-07-29 | 2011-02-03 | 三洋電機株式会社 | 振動機能付電気音響変換器 |
| WO2011043292A1 (ja) * | 2009-10-06 | 2011-04-14 | 株式会社コト | スピーカ型振動装置および振動機能付き電子機器 |
| US20130335211A1 (en) * | 2011-02-24 | 2013-12-19 | Kyocera Corporation | Electronic device |
| JP5668257B2 (ja) * | 2011-03-30 | 2015-02-12 | 並木精密宝石株式会社 | 多機能型振動アクチュエータの耐荷重構造 |
| KR101126044B1 (ko) * | 2011-09-09 | 2012-03-29 | 주식회사 웰리스 | 진동자 |
| JP2014049928A (ja) * | 2012-08-31 | 2014-03-17 | Namiki Precision Jewel Co Ltd | 多機能型振動アクチュエータのストッパー構造 |
| US10469935B2 (en) * | 2012-12-28 | 2019-11-05 | Panasonic Intellectual Property Management Co., Ltd. | Bone conduction speaker and bone conduction headphone device |
| USD705830S1 (en) * | 2013-02-15 | 2014-05-27 | Namiki Seimitsu Houseki Kabushiki Kaisha | Vibration actuator |
| CN103212531A (zh) * | 2013-04-12 | 2013-07-24 | 吕颖智 | 膜式电磁激振器 |
| JP2015039161A (ja) * | 2013-07-19 | 2015-02-26 | 株式会社Jvcケンウッド | スピーカ用磁気回路 |
| US10216231B1 (en) * | 2018-02-20 | 2019-02-26 | Nvf Tech Ltd | Moving magnet actuator for haptic alerts |
| USD865824S1 (en) * | 2018-08-22 | 2019-11-05 | Lofelt Gmbh | Compact vibration actuator |
| CN113396019B (zh) * | 2019-03-12 | 2022-06-28 | 阿尔卑斯阿尔派株式会社 | 电磁驱动装置以及操作装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259525A (ja) * | 2000-03-23 | 2001-09-25 | Namiki Precision Jewel Co Ltd | 電磁誘導型アクチュエータ装置 |
| JP2003300014A (ja) * | 2002-04-05 | 2003-10-21 | Nec Tokin Corp | 振動アクチュエータ |
| JP2004320399A (ja) * | 2003-04-16 | 2004-11-11 | Alps Electric Co Ltd | 音響装置及び前記装置が搭載された通話装置 |
| WO2005084073A1 (ja) * | 2004-02-27 | 2005-09-09 | Namiki Seimitsu Houseki Kabusikikaisha | 多機能型振動アクチュエータ並びに携帯用通信機器 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1194002B1 (en) * | 2000-09-28 | 2009-08-19 | Panasonic Corporation | Electromagnetic transducer and portable communication device |
| KR100500129B1 (ko) * | 2001-03-02 | 2005-07-11 | 삼성전기주식회사 | 진동 음향 변환장치 |
| KR20020073876A (ko) * | 2001-03-16 | 2002-09-28 | 삼성전기주식회사 | 진동스피커의 이중 마그네트 구조 |
| US7194287B2 (en) * | 2001-07-25 | 2007-03-20 | Matsushita Electric Industrial Co., Ltd. | Electric-mechanical-acoustic-transducer and portable communication device including the same |
| WO2003057375A1 (fr) * | 2001-12-28 | 2003-07-17 | Namiki Seimitsu Houseki Kabushiki Kaisha | Actionneur vibrant a plusieurs fonctions |
| JPWO2004006620A1 (ja) * | 2002-07-04 | 2005-11-10 | Necトーキン株式会社 | 電気音響変換器 |
| JPWO2004023843A1 (ja) * | 2002-09-06 | 2006-01-05 | 並木精密宝石株式会社 | 携帯端末の振動アクチュエータ装置 |
| KR100685451B1 (ko) * | 2004-06-24 | 2007-02-23 | 신기음향 주식회사 | 휴대용 이동통신 단말기의 리시버 유니트 |
-
2005
- 2005-12-27 JP JP2005374243A patent/JP4867031B2/ja not_active Expired - Fee Related
-
2006
- 2006-12-26 US US12/158,453 patent/US8400282B2/en not_active Expired - Fee Related
- 2006-12-26 KR KR1020087000484A patent/KR100990706B1/ko not_active Expired - Fee Related
- 2006-12-26 WO PCT/JP2006/325825 patent/WO2007074793A1/ja not_active Ceased
- 2006-12-26 CN CN2006800470956A patent/CN101330988B/zh not_active Expired - Fee Related
- 2006-12-26 EP EP06843209A patent/EP1972388B8/en not_active Not-in-force
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001259525A (ja) * | 2000-03-23 | 2001-09-25 | Namiki Precision Jewel Co Ltd | 電磁誘導型アクチュエータ装置 |
| JP2003300014A (ja) * | 2002-04-05 | 2003-10-21 | Nec Tokin Corp | 振動アクチュエータ |
| JP2004320399A (ja) * | 2003-04-16 | 2004-11-11 | Alps Electric Co Ltd | 音響装置及び前記装置が搭載された通話装置 |
| WO2005084073A1 (ja) * | 2004-02-27 | 2005-09-09 | Namiki Seimitsu Houseki Kabusikikaisha | 多機能型振動アクチュエータ並びに携帯用通信機器 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1972388A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766033A (zh) * | 2007-09-13 | 2010-06-30 | 并木精密宝石株式会社 | 多功能型振动促动器的止动器结构 |
| US20120169153A1 (en) * | 2009-07-01 | 2012-07-05 | Namiki Seimitsu Houseki Kabushiki Kaisha | Structure of vibration actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1972388A4 (en) | 2011-06-29 |
| JP2007175570A (ja) | 2007-07-12 |
| EP1972388B1 (en) | 2012-04-11 |
| US20100201501A1 (en) | 2010-08-12 |
| KR20080021768A (ko) | 2008-03-07 |
| KR100990706B1 (ko) | 2010-10-29 |
| CN101330988A (zh) | 2008-12-24 |
| EP1972388B8 (en) | 2012-05-16 |
| US8400282B2 (en) | 2013-03-19 |
| JP4867031B2 (ja) | 2012-02-01 |
| EP1972388A1 (en) | 2008-09-24 |
| CN101330988B (zh) | 2012-05-16 |
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