JPH09167430A - Disk drive device for hard disk drive - Google Patents
Disk drive device for hard disk driveInfo
- Publication number
- JPH09167430A JPH09167430A JP8323006A JP32300696A JPH09167430A JP H09167430 A JPH09167430 A JP H09167430A JP 8323006 A JP8323006 A JP 8323006A JP 32300696 A JP32300696 A JP 32300696A JP H09167430 A JPH09167430 A JP H09167430A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- disk drive
- pattern coil
- magnet
- coil
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
- H02K11/014—Shields associated with stationary parts, e.g. stator cores
- H02K11/0141—Shields associated with casings, enclosures or brackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- 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
- H02K41/0358—Lorentz force motors, e.g. voice coil motors moving along a curvilinear path
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rotational Drive Of Disk (AREA)
- Moving Of Heads (AREA)
Abstract
(57)【要約】
【課題】 更なる薄形化が可能で、駆動性能をより向上
させ得るディスク駆動装置を提供する。
【解決手段】 ベースとなるＰＣＢ１１にスピンドル軸
１２が突設してあり、その周りに磁場を発生させるパタ
ーンコイル１４ａが積層形成されている。スピンドル軸
１２に軸支されるディスク１５の回転軸の周囲にはパタ
ーンコイル１４ａと対面する磁石１５ａが設けられてい
る。即ち、これらパターンコイル１４ａと磁石１５ａと
の相互磁場作用によってディスク１５が回転する。更
に、パターンコイル１４ａ及び磁石１５ａによる磁気を
遮断して他への影響を防ぐ磁気遮蔽体１９をリング状に
設けてある。ＰＣＢ１１内に積層されたパターンコイル
１４ａの各層ごとのコイルパターンによってコイルの有
効巻線数が多くなるようにしてあり、強い回転トルクを
生むことができる。
(57) A disk drive device capable of further thinning and further improving drive performance is provided. SOLUTION: A spindle shaft 12 is projectingly provided on a PCB 11 as a base, and a pattern coil 14a for generating a magnetic field is laminated around the spindle shaft 12. A magnet 15a facing the pattern coil 14a is provided around the rotating shaft of the disk 15 which is supported by the spindle shaft 12. That is, the disk 15 rotates due to the mutual magnetic field action of the pattern coil 14a and the magnet 15a. Further, a magnetic shield 19 is provided in the shape of a ring to block the magnetism of the pattern coil 14a and the magnet 15a to prevent the influence on others. The number of effective windings of the coil is increased by the coil pattern for each layer of the pattern coil 14a laminated in the PCB 11, and a strong rotating torque can be produced.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンピュータの補
助記憶装置などとして使用されるハードディスクドライ
ブに関し、特にその磁気ディスクの駆動機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard disk drive used as an auxiliary storage device of a computer, and more particularly to a magnetic disk drive mechanism thereof.
【０００２】[0002]
【従来の技術】コンピュータの主要補助記憶装置として
主流をなすハードディスクドライブは、関連技術の発達
で高容量・小型軽量化が進められている。このような傾
向は、デスクトップタイプは勿論のこと、ノートブック
形のようなラップトップタイプのコンピュータのディス
クドライブにおいて顕著であり、最近のノートブックコ
ンピュータ市場の急成長につれてその小型軽量化の要求
はますます強まっている。ノートブックコンピュータで
は特に、その必須要素としてキーボード及びディスプレ
イがあるために平面的サイズについてはそれほどでもな
い反面、薄形化については非常に激しい要求がある。2. Description of the Related Art A hard disk drive, which is the mainstream as a main auxiliary storage device for a computer, has been advanced in size and weight while having high capacity due to the development of related technologies. Such a tendency is remarkable not only in the desktop type but also in the disk drive of the laptop type computer such as the notebook type, and the demand for the reduction in size and weight is required as the notebook computer market has grown rapidly in recent years. It is getting stronger. Especially in the notebook computer, since the keyboard and the display are essential elements, the planar size is not so great, but the thinning is very demanding.
【０００３】図１及び図２に、ラップトップタイプに使
用されるハードディスクドライブの構造を簡単に示す。
このハードディスクドライブ３０は、ベース３１上に設
置されて内部のコイル３２ａ及び永久磁石３２ｂの相互
作用により高速回転するスピンドルモータ３２と、この
スピンドルモータ３２のハブ上にクランプ３３とネジに
より固定されてスピンドルモータ３２により回転する記
録担体のディスク３４と、このディスク３４に対しデー
タ記録／再生を行う磁気ヘッド３５と、ベース３１に立
設されたピボット軸３６に軸受け３７を介し回動可能に
組み付けられ、先端に磁気ヘッド３５をもち、基端の駆
動部分にボビン及びコイル３８ａを設けたアクチュエー
タ３８と、このアクチュエータ３８のボビン及びコイル
３８ａ、永久磁石３８ｂ、上部ヨーク３９ａ、そして下
部ヨーク３９ｂの組み合わせからなるボイスコイルモー
タと、を備えている。これらはベース３１により支持さ
れて、保護のためにカバー４０により覆われる。ベース
３１の下面には、制御のための各電気部品(ELECTRICAL
COMPONENTS) を実装した印刷回路基板４１が設置され
る。1 and 2 briefly show the structure of a hard disk drive used in a laptop type.
The hard disk drive 30 is installed on a base 31 and rotates at a high speed by the interaction of an internal coil 32a and a permanent magnet 32b. A disk 34 as a record carrier that is rotated by a motor 32, a magnetic head 35 that records / reproduces data on / from the disk 34, and a pivot shaft 36 that is erected on a base 31 is rotatably assembled via a bearing 37. An actuator 38 having a magnetic head 35 at the tip and a bobbin and a coil 38a at the drive portion at the base, and a combination of the bobbin and the coil 38a of the actuator 38, a permanent magnet 38b, an upper yoke 39a, and a lower yoke 39b. Equipped with voice coil motor, . These are supported by a base 31 and covered by a cover 40 for protection. On the lower surface of the base 31, electrical components for control (ELECTRICAL
COMPONENTS) is mounted on the printed circuit board 41.
【０００４】このハードディスクドライブ３０の電源を
投入すれば、スピンドルモータ３２が制御回路の制御に
従い電流の流れるコイル３２ａと永久磁石３２ｂの相互
作用により回転し、ディスク３４が回転する。また、ア
クチュエータ３８は、制御回路の制御に従い電流の流れ
るコイル３８ａと下部ヨーク３９ｂ上に固定された状態
の永久磁石３８ｂとの相互作用による駆動力で、ピボッ
ト軸３６を中心にして回動し、磁気ヘッド３５を探索位
置へ移動させる。このときのヘッド３５は、ディスク３
４の高速回転で生じるディスク表面の気流による軸受作
用に従い浮き上がり、微細間隙を維持して移動し、記録
／再生を行う。When the power of the hard disk drive 30 is turned on, the spindle motor 32 rotates under the control of the control circuit due to the interaction between the coil 32a through which the current flows and the permanent magnet 32b, and the disk 34 rotates. Further, the actuator 38 is rotated about the pivot shaft 36 by the driving force by the interaction between the coil 38a through which the current flows and the permanent magnet 38b fixed on the lower yoke 39b according to the control of the control circuit. The magnetic head 35 is moved to the search position. The head 35 at this time is the disk 3
4 floats according to the bearing action due to the air flow on the disk surface generated by the high-speed rotation of 4, and moves while maintaining a fine gap to perform recording / reproduction.
【０００５】[0005]
【発明が解決しようとする課題】このようなハードディ
スクドライブ３０においてディスク駆動装置をなすスピ
ンドルモータ３２は、必須要素として備えられるもので
あるが、その構造から薄形化については現状で限界にあ
ると言え、更なる薄形化は困難になってきている。そこ
で、より薄形化が可能で、しかも駆動性能をより向上さ
せ得るディスク駆動装置の提供を本発明の目的とする。The spindle motor 32, which constitutes a disk drive device in such a hard disk drive 30, is provided as an essential element, but its structure is currently limited in terms of thinning. However, further thinning is becoming difficult. Therefore, it is an object of the present invention to provide a disk drive device which can be made thinner and whose drive performance can be further improved.
【０００６】[0006]
【課題を解決するための手段】この目的のために本発明
は、ハードディスクドライブのディスク回転制御を行う
ディスク駆動装置において、通電により磁場を発生する
パターンコイルを印刷回路基板に形成し、そして、その
パターンコイルの磁場と作用する磁石をディスク回転軸
の同心円上に設けることでディスクを回転させることを
特徴とする。パターンコイルの磁場と作用する磁石はデ
ィスクの片面に接着したものとするとよく、また、該磁
石はディスク回転軸の同心円上に１以上設けることがで
きる。To this end, according to the present invention, in a disk drive device for controlling disk rotation of a hard disk drive, a pattern coil for generating a magnetic field by energization is formed on a printed circuit board, and The disk is rotated by providing a magnet that interacts with the magnetic field of the pattern coil on a concentric circle of the disk rotation axis. The magnet acting on the magnetic field of the pattern coil may be adhered to one side of the disk, and one or more magnets may be provided on the concentric circle of the disk rotation axis.
【０００７】或いは、本発明によれば、ハードディスク
ドライブのディスク回転制御を行うディスク駆動装置に
おいて、通電により磁場を発生するパターンコイルをベ
ースに形成し、そして、そのパターンコイルの磁場と作
用する磁石をディスク回転軸の同心円上に設けることで
ディスクを回転させるようにし、更に、これらパターン
コイル及び磁石による磁気のディスクデータ領域への影
響を防止する磁気遮蔽体を設けることを特徴とする。磁
気遮蔽体は、フェライトビードとすればよく、パターン
コイル及び磁石を囲うリング状にして設けるのが好まし
い。According to the present invention, in a disk drive device for controlling disk rotation of a hard disk drive, a pattern coil for generating a magnetic field by energization is formed as a base, and a magnet acting on the magnetic field of the pattern coil is formed. It is characterized in that the disk is rotated by being provided on the concentric circle of the disk rotation axis, and further, a magnetic shield for preventing the influence of the magnetism of these pattern coils and magnets on the disk data area is provided. The magnetic shield may be a ferrite bead, and is preferably provided in a ring shape surrounding the pattern coil and the magnet.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施形態につき添
付図面を参照して説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【０００９】図３は、本発明によるディスク駆動装置を
備えたハードディスクドライブの平面図、図４は、図１
の断面線Ａ−Ａ’に沿う断面図、そして図５は、そのハ
ードディスクドライブの回路基板の概略図である。FIG. 3 is a plan view of a hard disk drive equipped with a disk drive device according to the present invention, and FIG.
5 is a schematic view of the circuit board of the hard disk drive, and FIG.
【００１０】このハードディスクドライブ１０は、ＩＣ
などの電気部品Ｅを搭載した印刷回路基板（ＰＣＢ）１
１でベースが形成されている。このＰＣＢ１１は積層(M
ulti-Layer) 式で作成したもので、ディスク回転支持用
のスピンドル軸１２とピボット軸(Pivot-Shaft) １３が
同じ側に突設してある。そして、これらスピンドル軸１
２とピボット軸１３の周りに、磁場を発生させるための
パターンコイル(Pattern Coil)１４ａ，１４ｂが積層形
成されている。また、ＰＣＢ１１は電気部品Ｅの実装面
をディスクなどのある装置内側にして使用してあり、そ
して各電気部品Ｅはベアチップの状態で、例えばワイヤ
レスボンディングにより実装され、装置の薄形化に貢献
するようにしてある。The hard disk drive 10 is an IC
Printed circuit board (PCB) 1 with electrical components E such as
1, the base is formed. This PCB11 is laminated (M
ulti-layer), a spindle shaft 12 and a pivot shaft (Pivot-Shaft) 13 for disc rotation support are provided on the same side. And these spindle shafts 1
Pattern coils (Pattern Coil) 14a and 14b for generating a magnetic field are laminated around 2 and the pivot shaft 13. Also, the PCB 11 is used with the mounting surface of the electric component E inside a device such as a disk, and each electric component E is mounted in a bare chip state by, for example, wireless bonding, which contributes to thinning of the device. Is done.
【００１１】スピンドル軸１２には、データ記録担体で
ある磁気ディスク１５が軸受１６ａを介し回転可能に組
み付けられる。そして、このディスク１５の回転軸の周
囲には、パターンコイル１４ａと対面するようにした回
転軸と同心円上の回転用磁石１５ａが設けられている。
即ち、これらパターンコイル１４ａと回転用磁石１５ａ
との相互磁場作用によって回転力が発生し、ディスク１
５が回転するようにしてある。A magnetic disk 15 as a data recording carrier is rotatably mounted on the spindle shaft 12 via a bearing 16a. Around the rotating shaft of the disk 15, a rotating magnet 15a concentric with the rotating shaft is provided so as to face the pattern coil 14a.
That is, these pattern coil 14a and rotating magnet 15a
Rotational force is generated by the mutual magnetic field action with
5 is designed to rotate.
【００１２】また、ピボット軸１３には、アクチュエー
タ１７が軸受１６ｂを介し回動可能に組み付けられる。
このアクチュエータ１７の先端にデータ記録／再生のた
めの磁気ヘッド１８が取り付けられ、そして基端すなわ
ち駆動制御部分に、ピボット軸１３近くのパターンコイ
ル１４ｂと対面するようにした回動用磁石１７ａが設け
られている。そのパターンコイル１４ｂと回動用磁石１
７ａとの相互磁場作用によりアクチュエータ１７が回動
する。An actuator 17 is rotatably attached to the pivot shaft 13 via a bearing 16b.
A magnetic head 18 for data recording / reproduction is attached to the tip of the actuator 17, and a rotating magnet 17a is provided at the base end, that is, the drive control portion so as to face the pattern coil 14b near the pivot shaft 13. ing. The pattern coil 14b and the rotating magnet 1
The actuator 17 is rotated by the mutual magnetic field action with 7a.
【００１３】更に、ディスク１５の回転用磁石１５ａ及
びＰＣＢ１１のパターンコイル１４ａによる磁気を遮断
し、ディスク１５のデータ領域及びヘッド１８への影響
を抑止するために、パターンコイル１４ａの周りを囲う
ようにしてフェライトビード(Ferrite Bead)の磁気遮蔽
体１９をリング状に設けてある。Further, the pattern coil 14a is surrounded so as to block the magnetism by the rotating magnet 15a of the disk 15 and the pattern coil 14a of the PCB 11 and suppress the influence on the data area of the disk 15 and the head 18. A magnetic shield 19 of a ferrite bead is provided in a ring shape.
【００１４】そして、ハードディスクドライブ１０の保
護及び密封のために、各構成部品を覆うようにしてカバ
ー２０が組み立てられている。尚、軸１２，１３はカバ
ー２０へ設けるようにしてもよい。In order to protect and seal the hard disk drive 10, a cover 20 is assembled so as to cover each component. The shafts 12 and 13 may be provided on the cover 20.
【００１５】図６及び図７は、ディスク１５の回転用磁
石１５ａの設置状態を示したものである。図６の場合
は、磁極が交互に現れた一体形の円形とした永久磁石１
５ａを、ディスク１５の回転軸周囲に接着している。一
方、図７の場合は、円弧形状の永久磁石１５ａを複数用
意し、その各同極どうしを向かい合わせて円形に接着す
るようにしている。6 and 7 show the installation state of the rotating magnet 15a of the disk 15. As shown in FIG. In the case of FIG. 6, an integrally formed permanent magnet 1 in which magnetic poles alternately appear
5a is bonded around the rotation axis of the disk 15. On the other hand, in the case of FIG. 7, a plurality of arc-shaped permanent magnets 15a are prepared, and the same poles thereof are faced to each other and bonded in a circular shape.
【００１６】回転用磁石１５ａをディスク１５に取り付
ける際、図８のディスク断面図に示すように、ディスク
１５のベース側の片面に磁石１５ａの形状に合わせた一
定深さの取付溝１５ｂを凹設し、この取付溝１５ｂに磁
石１５ａを接着するようにするとよい。このときの回転
用磁石１５ａの取付形態は、上記図６及び図７に示すよ
うないずれの形態でも可能である。When the rotating magnet 15a is attached to the disk 15, as shown in the disk sectional view of FIG. 8, a mounting groove 15b having a constant depth is formed on one surface of the disk 15 on the base side so as to have a constant depth. Then, the magnet 15a may be bonded to the mounting groove 15b. At this time, the mounting form of the rotating magnet 15a may be any form as shown in FIGS. 6 and 7.
【００１７】図９は、ディスク１５にも磁気遮蔽体１９
を設けた場合の例を示すものである。ディスク１５のベ
ース側には回転用磁石１５ａが接着されており、その回
転用磁石１５ａの裏側に、回転用磁石１５による磁気を
遮蔽するための薄い磁気遮蔽体１９が回転用磁石１５ａ
に沿う形で取り付けてある。このときの回転用磁石１５
ａの磁極配置は、上記配置形態のいずれでもよい。In FIG. 9, the magnetic shield 19 is provided on the disk 15 as well.
It shows an example of the case where is provided. A rotating magnet 15a is adhered to the base side of the disk 15, and a thin magnetic shield 19 for shielding the magnetism of the rotating magnet 15 is provided on the back side of the rotating magnet 15a.
It is attached along the form. Rotating magnet 15 at this time
The magnetic pole arrangement of a may be any of the above arrangement forms.
【００１８】上記のようなパターンコイル１４ａ及び回
転用磁石１５ａによるディスク駆動装置は、ＰＣＢ１１
のモータ駆動回路による電流がパターンコイル１４ａに
加えられると磁場が発生し、これと回転用磁石１５ａと
による相互作用を通じて回転力が生じる。この回転力に
よってディスク１５はスピンドル軸１２を中心に回転す
る。このとき、ＰＣＢ１１内に積層されたパターンコイ
ル１４ａの各層ごとのコイルパターンによってコイルの
有効巻線数が多くなるようにしてあり、強い回転トルク
を生むことができる。一方、このパターンコイル１４ａ
及び回転用磁石１５ａによる磁気は、磁気遮蔽体１９に
より遮断することでディスク１５及びヘッド１８の動作
に干渉しないようにしてある。The disk drive device using the pattern coil 14a and the rotating magnet 15a as described above is a PCB 11
When a current from the motor driving circuit is applied to the pattern coil 14a, a magnetic field is generated, and a rotational force is generated through the interaction between the magnetic field and the rotating magnet 15a. Due to this rotational force, the disk 15 rotates about the spindle shaft 12. At this time, the number of effective windings of the coil is increased by the coil pattern of each layer of the pattern coil 14a laminated in the PCB 11, and a strong rotational torque can be produced. On the other hand, this pattern coil 14a
The magnetic field generated by the rotating magnet 15a is blocked by the magnetic shield 19 so as not to interfere with the operation of the disk 15 and the head 18.
【００１９】[0019]
【発明の効果】本発明によるハードディスクドライブの
ディスク駆動装置は、電磁石となるコイルをパターン印
刷したＰＣＢを使用し、そしてそのパターンコイルによ
る磁場に応じて駆動力を発生するための磁石をディスク
に直に設ける構造が可能なので、従来に比べ更にドライ
ブを薄くすることが可能となる。また、ＰＣＢに印刷配
線して得るパターンコイルは、薄形化の場合でも、積層
式にして有効巻線数を多くすることができるので、ディ
スクの駆動力が上がり、動作性能を向上させることも可
能である。The disk drive device for a hard disk drive according to the present invention uses a PCB on which a coil serving as an electromagnet is pattern-printed, and a magnet for generating a driving force according to the magnetic field generated by the pattern coil is directly mounted on the disk. Since the structure can be provided in the drive, the drive can be made thinner than before. Further, the pattern coil obtained by printed wiring on the PCB can be laminated so as to increase the number of effective windings even in the case of thinning, so that the driving force of the disk is increased and the operation performance is improved. It is possible.
【図面の簡単な説明】[Brief description of the drawings]
【図１】従来のハードディスクドライブの平面図。FIG. 1 is a plan view of a conventional hard disk drive.
【図２】図１中の断面線Ａ−Ａに沿う断面図。FIG. 2 is a sectional view taken along a sectional line AA in FIG.
【図３】本発明によるハードディスクドライブの平面
図。FIG. 3 is a plan view of a hard disk drive according to the present invention.
【図４】図３中の断面線Ａ−Ａ’に沿う断面図。FIG. 4 is a sectional view taken along the section line A-A ′ in FIG.
【図５】図３及び図４中の回路基板４１の要部パターン
を示した概略図。5 is a schematic diagram showing a main part pattern of the circuit board 41 in FIGS. 3 and 4. FIG.
【図６】磁気ディスクに取り付けた回転用磁石の一例を
示す平面図。FIG. 6 is a plan view showing an example of a rotating magnet attached to a magnetic disk.
【図７】磁気ディスクに取り付けた回転用磁石の他の例
を示す平面図。FIG. 7 is a plan view showing another example of a rotating magnet attached to a magnetic disk.
【図８】回転用磁石を取り付けた磁気ディスクの断面
図。FIG. 8 is a sectional view of a magnetic disk having a rotating magnet attached thereto.
【図９】磁気遮蔽体を取り付けた場合の磁気ディスクの
断面図。FIG. 9 is a cross-sectional view of a magnetic disk when a magnetic shield is attached.
１０ ハードディスクドライブ １１ 印刷回路基板（ＰＣＢ） １２ スピンドル軸 １３ ピボット軸 １４ パターンコイル １５ ディスク １５ａ，１７ａ 磁石 １５ｂ 取付溝 １６ａ，１６ｂ 軸受 １７ アクチュエータ １８ ヘッド １９ 磁気遮蔽体 ２０ カバー 10 Hard Disk Drive 11 Printed Circuit Board (PCB) 12 Spindle Axis 13 Pivot Axis 14 Pattern Coil 15 Disk 15a, 17a Magnet 15b Mounting Groove 16a, 16b Bearing 17 Actuator 18 Head 19 Magnetic Shield 20 Cover
Claims (6)
制御を行うディスク駆動装置において、 通電により磁場を発生するパターンコイルを印刷回路基
板に形成し、そして、そのパターンコイルの磁場と作用
する磁石をディスク回転軸の同心円上に設けることでデ
ィスクを回転させるようにしたことを特徴とするディス
ク駆動装置。1. A disk drive device for controlling disk rotation of a hard disk drive, wherein a pattern coil for generating a magnetic field when energized is formed on a printed circuit board, and a magnet acting on the magnetic field of the pattern coil is connected to a disk rotation shaft. A disk drive device, wherein the disk is rotated by being provided on a concentric circle.
ディスクの片面に接着してある請求項１記載のディスク
駆動装置。2. The disk drive device according to claim 1, wherein a magnet that acts on the magnetic field of the pattern coil is bonded to one surface of the disk.
ディスク回転軸の同心円上に１以上設ける請求項１又は
請求項２記載のディスク駆動装置。3. The disk drive device according to claim 1, wherein one or more magnets that act on the magnetic field of the pattern coil are provided on a concentric circle of the disk rotation shaft.
制御を行うディスク駆動装置において、 通電により磁場を発生するパターンコイルをベースに形
成し、そして、そのパターンコイルの磁場と作用する磁
石をディスク回転軸の同心円上に設けることでディスク
を回転させるようにし、更に、これらパターンコイル及
び磁石による磁気のディスクデータ領域への影響を防止
する磁気遮蔽体を設けたことを特徴とするディスク駆動
装置。4. A disk drive device for controlling disk rotation of a hard disk drive, wherein a pattern coil for generating a magnetic field when energized is formed on a base, and a magnet acting on the magnetic field of the pattern coil is concentric with the disk rotation axis. The disk drive device is characterized in that the disk is rotated by being provided in the disk drive, and a magnetic shield for preventing the influence of the magnetism of the pattern coil and the magnet on the disk data area is provided.
求項４記載のディスク駆動装置。5. The disk drive device according to claim 4, wherein the magnetic shield is a ferrite bead.
にして磁気遮蔽体を設ける請求項４又は請求項５記載の
ディスク駆動装置。6. The disk drive device according to claim 4, wherein the magnetic shield is provided in a ring shape surrounding the pattern coil and the magnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1995P46429 | 1995-12-04 | ||
| KR1019950046429A KR0183153B1 (en) | 1995-12-04 | 1995-12-04 | Disk Drive of Hard Disk Drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09167430A true JPH09167430A (en) | 1997-06-24 |
Family
ID=19437590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8323006A Pending JPH09167430A (en) | 1995-12-04 | 1996-12-03 | Disk drive device for hard disk drive |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH09167430A (en) |
| KR (1) | KR0183153B1 (en) |
| DE (1) | DE19637953B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100699887B1 (en) * | 2005-09-20 | 2007-03-28 | 삼성전자주식회사 | Hard disk drive |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004030500A1 (en) | 2004-06-24 | 2006-01-12 | Dr. Johannes Heidenhain Gmbh | Voice coil motor and positioning device equipped with it |
| TWM381953U (en) * | 2009-08-06 | 2010-06-01 | Gene Power Holding Co Ltd | Generator structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137555A (en) * | 1980-03-27 | 1981-10-27 | Sony Corp | Optical disc cassette and disc driving method |
| JPH04200248A (en) * | 1990-11-29 | 1992-07-21 | Mitsubishi Electric Corp | Disk drive |
| EP0574074B1 (en) * | 1992-06-09 | 1998-03-04 | Koninklijke Philips Electronics N.V. | Data storage unit |
-
1995
- 1995-12-04 KR KR1019950046429A patent/KR0183153B1/en not_active Expired - Fee Related
-
1996
- 1996-09-17 DE DE19637953A patent/DE19637953B4/en not_active Expired - Fee Related
- 1996-12-03 JP JP8323006A patent/JPH09167430A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100699887B1 (en) * | 2005-09-20 | 2007-03-28 | 삼성전자주식회사 | Hard disk drive |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0183153B1 (en) | 1999-04-15 |
| DE19637953B4 (en) | 2006-01-19 |
| KR970050876A (en) | 1997-07-29 |
| DE19637953A1 (en) | 1997-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0461065A (en) | Data recording and reproducing device | |
| JP2922633B2 (en) | Disk unit | |
| US20090154008A1 (en) | Spindle motor and recording disk drive having spindle motor | |
| JPH09167430A (en) | Disk drive device for hard disk drive | |
| US6876114B2 (en) | Apparatus for reducing spindle motor magnetic drag | |
| JPH09180360A (en) | Hard disk drive device | |
| JP3708898B2 (en) | Disk rotation motor and disk device | |
| US5761000A (en) | Data storage devices having a slim-type hard disk drive suitable for use in portable computers | |
| JP2002233101A (en) | Spindle motor and information recording / reproducing device | |
| US5875069A (en) | Claw-pole synchronous motor for driving a storage device | |
| JPH09180383A (en) | Hard disk drive actuator drive | |
| JPH07201126A (en) | Spindle motor of disk device | |
| JP2539861Y2 (en) | Rotor device of brushless motor | |
| JPH0229600Y2 (en) | ||
| JP2009268166A (en) | Spindle motor and disk drive device | |
| JPS6222345B2 (en) | ||
| JP4192466B2 (en) | Magnetic disk cartridge, mounting portion thereof, and magnetic disk device | |
| JPH087462A (en) | Floppy disk drive | |
| GB2307769A (en) | Data storage device | |
| JP2502806Y2 (en) | Hard disk device | |
| JPH09180383A5 (en) | ||
| JP2523299Y2 (en) | Disk drive | |
| JPH0636252A (en) | Actuator structure of magnetic disk device | |
| JPH06253518A (en) | Brushless motor | |
| JP2938619B2 (en) | Disk unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20031202 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20040302 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20040305 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040602 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040629 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20040825 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20040827 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040830 |