WO2003103115A1 - ボイスコイルモータ - Google Patents
ボイスコイルモータ Download PDFInfo
- Publication number
- WO2003103115A1 WO2003103115A1 PCT/JP2003/006961 JP0306961W WO03103115A1 WO 2003103115 A1 WO2003103115 A1 WO 2003103115A1 JP 0306961 W JP0306961 W JP 0306961W WO 03103115 A1 WO03103115 A1 WO 03103115A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- mover
- rigidity
- voice coil
- motor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
-
- 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
- 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 particularly relates to a movable coil type voice coil motor used for semiconductor-related devices and machine tools.
- the mainstream voice coil motor is a movable coil type motor having a permanent magnet as a field magnet on a stator and an armature winding on a mover.
- the shape seen from the side is “E j-shaped, and one end of the yoke is open, and the mover can be removed.
- the shape seen from the side is It is roughly divided into those that have a “Japanese” character shape, the yoke is closed, and the mover cannot be removed.
- the mover has an air-core coil formed into a cylindrical shape or a rectangular tube shape, or a coil wound around a non-magnetic thin bobbin made of engineering plastic, lightweight metal, or the like.
- FIGS. 4A and 4B are projection views showing a conventional technology of a voice coil motor in which the stator side face has a “Japanese” shape, in which FIG. 4A is a partial cross-sectional front view, and FIG. 4B is a side view.
- the stator 41 is composed of a yoke 42, a permanent magnet 43, and a center yoke 44, which are iron-based members.
- a thin copper plate 46 is often wound around the center yoke 44 to reduce inductance.
- the mover 47 includes a coil 48 and a mover mounting member 49. In some cases, a bobbin 52 (see FIG. 5) for winding the coil 48 is provided.
- the mover 47 is held by a linearly movable bearing (not shown), and moves in the direction of the arrow (FIG. 4 (a)) according to Fleming's left-hand rule by applying DC current to the coil 48.
- the direction of movement is reversed by the reversal of the current polarity.
- FIG. 5 is a perspective view of a mover of a conventional voice coil motor.
- the thickness t of the coil 48 in the stacking direction has a large effect on the magnetic circuit of the stator, and cannot be extremely increased. Therefore, the rigidity of the mover depends only on the non-magnetic thin bobbin 52 or the varnish or impregnated resin when the coil is wound, and has a relatively low rigidity, which hinders the improvement of the control characteristics of the voice coil motor.
- an object of the present invention is to improve the rigidity characteristics of a voice coil motor, which has been increasing in recent years, without affecting a magnetic circuit.
- the invention of the voice coil motor according to claim 1 of the present application is directed to a movable coil type voice coil motor having a permanent magnet serving as a field on a stator and an armature winding on a mover.
- the armature winding is formed in a coil shape having a hollow portion, and a reinforcing beam formed of a non-magnetic and highly rigid material is provided substantially at the center of the hollow portion. like this With such a configuration, the rigidity of the mover can be improved.
- the invention of a voice coil motor according to claim 2 is a moving coil type voice coil motor having a permanent magnet serving as a field on a stator and an armature winding on a mover, wherein an end face of the coil is provided. And a high-rigidity reinforcing member having the same shape as the coil cross section is disposed.
- the invention of a voice coil motor according to claim 3 is a movable coil type voice coil motor in which a permanent magnet serving as a field is provided on a stator, and an armature winding is provided on a mover.
- a high-rigidity reinforcing member that is formed in a coil shape with a ⁇ portion, has a reinforcing beam formed of a non-magnetic and high-rigidity material substantially at the center of the hollow portion, and has an end face of the coil with a high-rigidity reinforcing member having the same shape as the coil section It is characterized by being arranged.
- a non-magnetic, high-rigidity reinforcing beam placed almost in the center of the coil cavity has the effect of preventing the coil from collapsing and twisting.
- the high-rigidity strength-carrying members arranged on both end surfaces of the coil also have the effect of preventing the coil from being crushed. As a result, the rigidity of the coil increases.
- the armature winding is formed in a hollow portion.
- a coil is formed, and a reinforcing beam made of a non-magnetic and high-rigidity material is provided substantially at the center of the hollow portion, or a high-rigidity reinforcing member having the same shape as the coil cross section is disposed on an end surface of the coil.
- FIG. 1 is a projection view of the entire voice coil motor according to the first embodiment of the present invention, in which (a) is a side view and (b) is a partial cross-sectional front view.
- FIG. 2 is a perspective view of the voice coil motor mover of FIG.
- FIG. 3 is a perspective view of a voice coil motor mover according to a second embodiment of the present invention.
- FIGS. 4A and 4B are projection views showing a prior art voice coil motor having a stator having a "Japanese" character side shape, in which FIG. 4A is a partial cross-sectional front view, and FIG. 4B is a side view.
- FIG. 5 is a perspective view of the voice coil motor mover of FIG.
- FIG. 6 shows a measurement result of the natural frequency of the mover according to the embodiment of the present invention.
- FIG. 7 shows the measurement results of the natural frequency of the mover according to the conventional technique. -[Best mode for carrying out the invention]
- FIG. 1 is a projection view of the entire voice coil motor according to the first embodiment of the present invention, in which (a) is a side view and (b) is a partial cross-sectional front view.
- FIG. 2 is a perspective view of a mover of the voice coil motor of FIG.
- the mover has been described as a rectangular cylindrical coil, but the embodiment in FIG. 1 will be described with a cylindrical coil.
- 1 is a stator
- 2 is a yoke
- 3 is a permanent magnet
- 4 is a center yoke
- 5 is a gap
- 6 is a thin copper plate
- 7 is a mover
- 8 is a coil
- 9 is a mover mounting member
- 10 Is reinforced The beam
- 11 is a stiffening ring.
- the stator 1 includes a yoke 2, a permanent magnet 3, a center yoke 4, and a thin copper plate 6.
- the center yoke 4 has a two-part structure in order to secure the space 5 serving as a passage for the reinforcing beam 10.
- the mover 7 includes a coil 8, a mover mounting member 9, a reinforcing beam 10, and a reinforcing ring 11.
- the mover mounting member 9 also serves as a high-rigidity reinforcing member on the coil end surface.
- the mover mounting member 9, the reinforcing beam 10, and the reinforcing ring 11 are firmly fixed to the coil 8 by a varnish or an impregnated resin at the time of winding or winding.
- the armature winding (movable element 7) is formed in a coil shape having a hollow portion, and a reinforcement formed of a nonmagnetic and high-rigidity material is provided substantially at the center of the hollow portion.
- the reinforcing beam 10 prevents the movable coil 8 from being deformed, so that it greatly contributes to improving the rigidity of the movable coil 8.
- the capturing beam 10 and the reinforcing ring 11 prevent the coil 8 from being deformed. This greatly contributes to the improvement of the rigidity of the tire.
- FIG. 3 is a perspective view of a voice coil motor mover according to a second embodiment of the present invention.
- 8 ' is a mover for a coil
- 10 and 10 are forcing beams
- 11' is a reinforcing ring.
- the mover 7 includes a coil 8 ′, a reinforcing beam 10 ′, and a reinforcing ring 11 ′, each of which is firmly fixed with a varnish or an impregnated resin at the time of bonding or winding.
- the reinforcing beam 10 ′ extends in the stroke direction beyond the range of the reinforcing rings 11 ′ and 11 ′, and is directly connected to the movable body.
- the mounting member 9 is not required.
- the reinforcing beam 10 and the reinforcing ring 11 prevent the coil 8 from being deformed, which greatly contributes to improving the rigidity of the movable coil.
- the mover ring 9 is made of alumina ceramics, and the reinforcing beams 10 and the reinforcing rings 11 are made of carbon fiber reinforced plastic (CFRP) because of the necessity of being a non-magnetic high-rigidity member.
- CFRP carbon fiber reinforced plastic
- the armature winding (movable element 7 ′) is formed in a coil shape having a hollow portion, and a non-magnetic and highly rigid material is formed substantially in the center of the hollow portion.
- the capturing beam 10 ′ prevents the deformation of the movable coil 8 ′, which greatly contributes to the improvement of rigidity of the movable coil 8 ′.
- FIG. 6 shows the natural frequency results of free vibration of the voice coil motor mover embodying the present invention.
- the vertical axis indicates gain, and the horizontal axis indicates frequency.
- FIG. 7 shows the natural frequency results of free vibration of the conventional voice coil motor mover.
- the vertical axis indicates gain, and the horizontal axis indicates frequency.
- FIG. 7 relating to the voice coil motor mover of the prior art
- the primary natural frequency is 700 Hz
- the frequency of the maximum gain is 962.5 Hz.
- the motor mover (Fig. 6) has a large improvement in rigidity compared to the conventional one (Fig. 7).
- the gain cannot be compared here because the excitation force during measurement is different.
- the present invention is particularly applicable to a moving coil type voice coil motor used for a semiconductor-related device or a machine tool, and manufactures and provides a voice coil motor capable of improving rigidity characteristics without affecting a magnetic circuit. Can be used in the field.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020047019697A KR100973884B1 (ko) | 2002-06-04 | 2003-06-02 | 보이스 코일 모터 |
US10/516,460 US7420300B2 (en) | 2002-06-04 | 2003-06-02 | Voice coil motor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002162896A JP4099646B2 (ja) | 2002-06-04 | 2002-06-04 | ボイスコイルモータ |
JP2002-162896 | 2002-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003103115A1 true WO2003103115A1 (ja) | 2003-12-11 |
Family
ID=29706621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/006961 WO2003103115A1 (ja) | 2002-06-04 | 2003-06-02 | ボイスコイルモータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7420300B2 (ja) |
JP (1) | JP4099646B2 (ja) |
KR (1) | KR100973884B1 (ja) |
CN (1) | CN100502208C (ja) |
WO (1) | WO2003103115A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4099646B2 (ja) * | 2002-06-04 | 2008-06-11 | 株式会社安川電機 | ボイスコイルモータ |
DK1654966T3 (da) * | 2004-10-25 | 2007-02-19 | Nestec Sa | Kapsel med forseglingsmidler |
KR100683538B1 (ko) * | 2006-01-24 | 2007-02-15 | (주)실리콘화일 | 음성 코일 모듈 |
NZ776770A (en) | 2011-02-25 | 2023-03-31 | Regeneron Pharma | Adam6 mice |
PL2793567T3 (pl) | 2011-12-20 | 2019-09-30 | Regeneron Pharmaceuticals, Inc. | Myszy z humanizowanym łańcuchem lekkim |
JP5959425B2 (ja) * | 2012-12-07 | 2016-08-02 | 株式会社ハーモニック・ドライブ・システムズ | リニアモータ |
JP2015002951A (ja) * | 2013-06-24 | 2015-01-08 | 株式会社 資生堂 | ボイスコイルモータ及びそれを用いたブラシユニット |
DE112014006560T5 (de) * | 2014-04-07 | 2017-02-16 | Harmonic Drive Systems Inc. | Linear-Aktuator |
KR102257873B1 (ko) | 2015-02-26 | 2021-05-28 | 주식회사 만도 | 통합형 브레이크 장치의 펌프 |
JP6408940B2 (ja) * | 2015-03-19 | 2018-10-17 | 株式会社キーエンス | リニアアクチュエータ |
KR101729232B1 (ko) | 2015-07-15 | 2017-04-21 | (주)계양정밀 | 회전 관성 저감 자동차용 터보차저 |
CN105896758A (zh) * | 2016-05-10 | 2016-08-24 | 刘宁 | 集成式音圈电机模组 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5541777A (en) * | 1993-10-27 | 1996-07-30 | Sony Corporation | Electromagnetic driving device |
US5798582A (en) * | 1996-03-22 | 1998-08-25 | Systems, Machines, Automation Components, Corporation | Linear voice actuator with replaceable magnetic coil |
US6184597B1 (en) * | 1998-04-28 | 2001-02-06 | Matsushita Refrigeration Company | Linear motor and linear compressor |
US6302626B1 (en) * | 2000-01-20 | 2001-10-16 | Industrial Technology Research Institute | Fixed support for voice coil motor |
US20020014937A1 (en) * | 2000-07-28 | 2002-02-07 | Masaaki Tanozaki | Electromagnetic reciprocal drive mechanism |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3439198A (en) * | 1965-12-27 | 1969-04-15 | Robert H Lee | Electrical actuator having a mechanical output |
US3619673A (en) * | 1970-04-07 | 1971-11-09 | Data Products Corp | Moving coil linear motor |
US3659124A (en) * | 1970-09-28 | 1972-04-25 | Vernitron Corp | Linear motion motor with rectangular coil construction |
BE795400A (fr) * | 1972-02-14 | 1973-08-14 | Xerox Corp | Moteur de haut-parleur sans flux de perte |
US4144466A (en) * | 1977-09-30 | 1979-03-13 | International Business Machines Corporation | Damping vibrations in voice coil actuator |
DE2809975A1 (de) * | 1978-03-08 | 1979-09-20 | Bosch Gmbh Robert | Magnetstellwerk fuer eine regeleinrichtung |
US4439699A (en) | 1982-01-18 | 1984-03-27 | International Business Machines Corporation | Linear moving coil actuator |
US4728831A (en) * | 1984-09-07 | 1988-03-01 | Magnetic Peripherals Inc. | Damped voice coil actuator |
JPS61273162A (ja) * | 1985-05-27 | 1986-12-03 | Hitachi Ltd | アクチユエ−タのアクセス機構 |
JPH0612796A (ja) | 1992-06-30 | 1994-01-21 | Canon Inc | 磁気ヘッド・アクチュエータ |
US5677963A (en) * | 1995-04-11 | 1997-10-14 | Bei Electronics, Inc. | Performance enhancement of closed-ended magnetic circuits by selective removal of material |
US5777403A (en) * | 1996-07-30 | 1998-07-07 | Nikon Corporation | Voice coil motor with air guide and air bellows |
JPH11313476A (ja) | 1998-04-28 | 1999-11-09 | Matsushita Refrig Co Ltd | リニアモータ |
US6067365A (en) * | 1998-09-25 | 2000-05-23 | Morenz; Paul | Loudspeaker |
JP3432442B2 (ja) * | 1999-02-12 | 2003-08-04 | インターナショナル・ビジネス・マシーンズ・コーポレーション | データ記録装置及びヘッド・スタック・アセンブリ |
US6490363B1 (en) * | 1999-10-13 | 2002-12-03 | Chun-I Liu | Structure of speaker |
US6713904B2 (en) * | 2000-03-28 | 2004-03-30 | Bei Technologies, Inc. | Linear voice coil actuator with compensating coils |
JP4099646B2 (ja) * | 2002-06-04 | 2008-06-11 | 株式会社安川電機 | ボイスコイルモータ |
-
2002
- 2002-06-04 JP JP2002162896A patent/JP4099646B2/ja not_active Expired - Lifetime
-
2003
- 2003-06-02 CN CNB038128667A patent/CN100502208C/zh not_active Expired - Fee Related
- 2003-06-02 US US10/516,460 patent/US7420300B2/en not_active Expired - Fee Related
- 2003-06-02 KR KR1020047019697A patent/KR100973884B1/ko not_active IP Right Cessation
- 2003-06-02 WO PCT/JP2003/006961 patent/WO2003103115A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5541777A (en) * | 1993-10-27 | 1996-07-30 | Sony Corporation | Electromagnetic driving device |
US5798582A (en) * | 1996-03-22 | 1998-08-25 | Systems, Machines, Automation Components, Corporation | Linear voice actuator with replaceable magnetic coil |
US6184597B1 (en) * | 1998-04-28 | 2001-02-06 | Matsushita Refrigeration Company | Linear motor and linear compressor |
US6302626B1 (en) * | 2000-01-20 | 2001-10-16 | Industrial Technology Research Institute | Fixed support for voice coil motor |
US20020014937A1 (en) * | 2000-07-28 | 2002-02-07 | Masaaki Tanozaki | Electromagnetic reciprocal drive mechanism |
Also Published As
Publication number | Publication date |
---|---|
KR20050004279A (ko) | 2005-01-12 |
US7420300B2 (en) | 2008-09-02 |
US20050206245A1 (en) | 2005-09-22 |
JP2004015863A (ja) | 2004-01-15 |
CN1659769A (zh) | 2005-08-24 |
JP4099646B2 (ja) | 2008-06-11 |
CN100502208C (zh) | 2009-06-17 |
KR100973884B1 (ko) | 2010-08-03 |
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