JPH08147960A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPH08147960A
JPH08147960A JP29284294A JP29284294A JPH08147960A JP H08147960 A JPH08147960 A JP H08147960A JP 29284294 A JP29284294 A JP 29284294A JP 29284294 A JP29284294 A JP 29284294A JP H08147960 A JPH08147960 A JP H08147960A
Authority
JP
Japan
Prior art keywords
magnetic disk
magnetic
disk device
carriage
spindle motor
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
Application number
JP29284294A
Other languages
Japanese (ja)
Inventor
Seiji Yamashita
誠二 山下
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.)
NEC Ibaraki Ltd
Original Assignee
NEC Ibaraki 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 NEC Ibaraki Ltd filed Critical NEC Ibaraki Ltd
Priority to JP29284294A priority Critical patent/JPH08147960A/en
Publication of JPH08147960A publication Critical patent/JPH08147960A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent dew condensation inside a magnetic disk device when the environmental temp. has dropped. CONSTITUTION: Space volume inside the magnetic disk device is minimized by using a stepped base 7 and a stepped cover 8, which are formed to approach a constitutive member inside the device. Then, a hygroscopic synthetic resin is applied to a molding material of a coil mold to possess a moisture adjustment function, so that the condensation of dew is suppressed at the time of dropping of the environmental temp., and an adverse effect on the device performance due to a sticking phenomenon between a magnetic disk 1 and a magnetic head 4 is prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明の磁気ディスク装置に関
し、特に磁気ディスク装置内の湿度調整機構に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device, and more particularly to a humidity adjusting mechanism in a magnetic disk device.

【0002】[0002]

【従来の技術】従来の磁気ディスク装置は、図2に示す
ように、磁気ディスク媒体(以下、磁気ディスクとい
う)1と、この磁気ディスク1と交互に積層するスペー
サリング2と、磁気ディスク1およびスペーサリング2
と一体になって回転するスピンドルモータ3と、磁気デ
ィスク1に対してデータの書き込み・読み出しを行う磁
気ヘッド4と、磁気ヘッド4を支持するアーム5と、ア
ームを取り付けて磁気ヘッド4の位置決めを行うキャリ
ッジ6と、スピンドルモータ3とキャリッジ6が取り付
けられているベース11と、スピンドルモータ3とキャ
リッジ6とを内包し密封するカバー12とを含んで構成
される。
2. Description of the Related Art As shown in FIG. 2, a conventional magnetic disk device includes a magnetic disk medium (hereinafter referred to as a magnetic disk) 1, a spacer ring 2 alternately laminated with the magnetic disk 1, a magnetic disk 1 and a magnetic disk 1. Spacer ring 2
A spindle motor 3 that rotates integrally with the magnetic disk 4, a magnetic head 4 that writes and reads data to and from the magnetic disk 1, an arm 5 that supports the magnetic head 4, and an arm attached to position the magnetic head 4. It includes a carriage 6 for carrying out, a spindle motor 3, a base 11 to which the carriage 6 is attached, and a cover 12 for enclosing and sealing the spindle motor 3 and the carriage 6.

【0003】そして、カバー12には磁気ディスク装置
の内部と外部に圧力調整を行う呼吸穴9有しており、こ
の呼吸穴9から流入する空気中に含まれた塵埃を除去す
るため、カバー12の呼吸穴9の内側には呼吸フィルタ
10を取り付け、磁気ディスク装置の内部に塵埃が侵入
するのを防いでいる。
The cover 12 has a breathing hole 9 for adjusting the pressure inside and outside the magnetic disk device. In order to remove dust contained in the air flowing in from the breathing hole 9, the cover 12 is provided. A breathing filter 10 is attached to the inside of the breathing hole 9 to prevent dust from entering the inside of the magnetic disk device.

【0004】さらに、磁気ディスク装置の内外部の湿度
差により磁気ディスク装置内に水分が流入し、磁気ディ
スク装置内の湿度が高くなるのを防ぐために吸湿剤(図
示せず)を備えており、この吸湿剤は発塵を防ぐためケ
ースに納められ、フィルタを介してケースの通気穴から
のみ通気している。
Further, a moisture absorbent (not shown) is provided in order to prevent moisture from flowing into the magnetic disk device due to a difference in humidity between the inside and the outside of the magnetic disk device to increase the humidity in the magnetic disk device. This hygroscopic agent is contained in a case to prevent dust generation, and is ventilated only through a ventilation hole of the case through a filter.

【0005】[0005]

【発明が解決しようとする課題】上述した従来の磁気デ
ィスク装置は、外部湿度の影響を少なくするため呼吸穴
が絞られており、しかも、吸湿剤は通気穴からのみフィ
ルタを介し通気するために応答性が悪くなっている。従
って、急激な環境温度の低下時には、磁気ディスク装置
内の湿度が飽和状態になって結露が発生し、磁気ディス
クと磁気ヘッドとが吸着を起し、装置性能に悪影響を与
えるという欠点がある。
In the above-described conventional magnetic disk device, the breathing hole is narrowed in order to reduce the influence of external humidity, and the hygroscopic agent is ventilated only through the vent hole through the filter. The responsiveness is poor. Therefore, when the environmental temperature suddenly drops, the humidity in the magnetic disk device is saturated and dew condensation occurs, and the magnetic disk and the magnetic head are attracted to each other, which adversely affects the device performance.

【0006】[0006]

【課題を解決するための手段】本発明は、磁気ディスク
と、この磁気ディスクと交互に積層するスペーサリング
と、前記磁気ディスクおよび前記スペーサリングと一体
となって回転するスピンドルモータと、前記磁気ディス
クにデータの書き込み・読み出しを行う磁気ヘッドと、
この磁気ヘッドを支持するアームと、前記磁気ヘッドの
位置決めを行うキャリッジと、前記スピンドルモータお
よび前記キャリッジを取り付けるベースと、前記スピン
ドルモータおよび前記キャリッジを内包し密封するカバ
ーとを備える磁気ディスク装置において、前記ベースお
よび前記カバーは、積層された磁気ディスクの外形に近
接するように、前記磁気ディスクの回転部近傍の両端部
に略円筒状の凹部をそれぞれ備え、装置内の空間容積を
低減することを特徴とする。また、装置内部に吸湿性を
有する成形部材もしくは塗料を用いてなることを特徴と
する。
According to the present invention, there is provided a magnetic disk, a spacer ring alternately laminated with the magnetic disk, a spindle motor rotating integrally with the magnetic disk and the spacer ring, and the magnetic disk. A magnetic head that writes and reads data to and from
A magnetic disk device comprising: an arm for supporting the magnetic head; a carriage for positioning the magnetic head; a base for mounting the spindle motor and the carriage; and a cover for enclosing and sealing the spindle motor and the carriage, The base and the cover are provided with substantially cylindrical recesses at both ends in the vicinity of the rotating portion of the magnetic disk so as to be close to the outer shape of the stacked magnetic disks, thereby reducing the space volume in the device. Characterize. Further, it is characterized in that a molded member having a hygroscopic property or a paint is used inside the apparatus.

【0007】[0007]

【実施例】次に、本発明のついて図面を参照して説明す
る。図1は、本発明の磁気ディスク装置を示す断面図で
ある。なお、図1において、従来例と同様の形状および
機能を有する構成部材については同じ符号で示す。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a magnetic disk device of the present invention. In FIG. 1, constituent members having the same shape and function as those of the conventional example are designated by the same reference numerals.

【0008】本発明の磁気ディスク装置は、図1に示す
ように、磁気ディスク1と、この磁気ディスク1と交互
に積層するスペーサリング2と、磁気ディスク1および
スペーサリング2と一体になって回転するスピンドルモ
ータ3と、磁気ディスク1に対してデータの書き込み・
読み出しを行う磁気ヘッド4と、磁気ヘッド4を支持す
るアーム5と、アームを取り付けて磁気ヘッド4の位置
決めを行うキャリッジ6と、スピンドルモータ3とキャ
リッジ6が取り付けられている段付きベース7と、スピ
ンドルモータ3とキャリッジ6とを内包し密封する段付
きカバー8とを含んで構成される。
As shown in FIG. 1, the magnetic disk apparatus of the present invention rotates a magnetic disk 1, a spacer ring 2 alternately laminated with the magnetic disk 1, and the magnetic disk 1 and the spacer ring 2 integrally. Writing data to the spindle motor 3 and the magnetic disk 1
A magnetic head 4 for reading, an arm 5 for supporting the magnetic head 4, a carriage 6 for mounting the arm to position the magnetic head 4, a stepped base 7 on which the spindle motor 3 and the carriage 6 are mounted, It includes a stepped cover 8 that encloses and seals the spindle motor 3 and the carriage 6.

【0009】そして、段付きカバー8には、従来例の場
合と同様に、磁気ディスク装置の内部と外部に圧力調整
を行う呼吸穴9有しており、この呼吸穴9から流入する
空気中に含まれた塵埃を除去するために、段付きカバー
8の呼吸穴9の内側に呼吸フィルタ10を取り付け、磁
気ディスク装置の内部に塵埃が侵入するのを防いでい
る。また、キャリッジ6には駆動コイル(図示せず)を
樹脂成形したコイルモールド14が取り付けられてい
る。
The stepped cover 8 has a breathing hole 9 for adjusting the pressure inside and outside the magnetic disk device, as in the case of the conventional example. In order to remove the contained dust, a breathing filter 10 is attached inside the breathing hole 9 of the stepped cover 8 to prevent the dust from entering the inside of the magnetic disk device. Further, a coil mold 14 formed by resin molding a drive coil (not shown) is attached to the carriage 6.

【0010】さらに、段付きベース7および段付きカバ
ー8は、磁気ディスク装置内の空間容積を極力小さくす
るために、積層された磁気ディスク1の形状に合わせて
段差を設けたものであって、本実施例では、磁気ディス
ク1の回転中心部近傍の上部および下部に位置する箇所
はそれぞれ略円筒状の凹部を備えている。これにより、
磁気ディスク装置内の空気量を減らすことができる。す
なわち、装置内部に存在する水分量を少なくする。
Further, the stepped base 7 and the stepped cover 8 are provided with a step according to the shape of the stacked magnetic disks 1 in order to minimize the space volume in the magnetic disk device. In this embodiment, the upper and lower portions near the center of rotation of the magnetic disk 1 are each provided with a substantially cylindrical recess. This allows
The amount of air in the magnetic disk device can be reduced. That is, the amount of water existing inside the device is reduced.

【0011】また、本実施例では、樹脂成形された構成
部材(例えば、コイルモールド14)を吸湿性を有する
合成樹脂に代えて成形することにより、装置内部の湿度
を低下させるとともに調湿機能を持たせることができ
る。この場合に用いる合成樹脂としては、例えば、商品
名:スミカゲル(住友化学製)に代えて成形、もしくは
この吸湿性樹脂と他の合成樹脂とを配合したものを成形
してもよい。さらに、磁気ディスク装置内の表面塗装1
3として、前記吸湿性樹脂を適当な塗料と配合したもの
を塗布してもよい。
Further, in this embodiment, the resin-molded component member (for example, the coil mold 14) is molded by substituting a synthetic resin having a hygroscopic property, so that the humidity inside the apparatus is lowered and the humidity control function is achieved. You can have it. As the synthetic resin used in this case, for example, molding may be performed in place of the trade name: Sumikagel (manufactured by Sumitomo Chemical Co., Ltd.), or a mixture of this hygroscopic resin and another synthetic resin may be molded. Furthermore, the surface coating inside the magnetic disk device 1
As No. 3, a mixture of the hygroscopic resin with an appropriate paint may be applied.

【0012】[0012]

【発明の効果】以上説明したように本発明の磁気ディス
ク装置は、磁気ディスク装置の内部容積を最小限にとど
めるとともに、磁気ディスク内部の部材に吸水性を有す
る部材を用いることにより、急激な環境温度の低下時に
発生する結露によって、磁気ディスクと磁気ヘッドとが
吸着現象を起して装置性能に悪影響を与えるのを防止で
きるとい効果がある。
As described above, the magnetic disk device of the present invention minimizes the internal volume of the magnetic disk device and uses a member having a water absorbing property as a member inside the magnetic disk, so that a sudden environment There is an effect that it is possible to prevent the magnetic disk and the magnetic head from being attracted to each other by the dew condensation that occurs when the temperature is lowered to adversely affect the device performance.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【図2】従来例を示す断面図である。FIG. 2 is a sectional view showing a conventional example.

【符号の説明】[Explanation of symbols]

1 磁気ディスク 2 スペーサリング 3 スピンドルモータ 4 磁気ヘッド 5 アーム 6 キャリッジ 7 段付きベース 8 段付きカバー 9 呼吸孔 10 呼吸フィルタ 11 ベース 12 カバー 13 表面塗装 14 コイルモールド 1 Magnetic Disk 2 Spacer Ring 3 Spindle Motor 4 Magnetic Head 5 Arm 6 Carriage 7 Stepped Base 8 Stepped Cover 9 Breathing Hole 10 Breathing Filter 11 Base 12 Cover 13 Surface Painting 14 Coil Mold

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 磁気ディスクと、この磁気ディスクと交
互に積層するスペーサリングと、前記磁気ディスクおよ
び前記スペーサリングと一体となって回転するスピンド
ルモータと、前記磁気ディスクにデータの書き込み・読
み出しを行う磁気ヘッドと、この磁気ヘッドを支持する
アームと、前記磁気ヘッドの位置決めを行うキャリッジ
と、前記スピンドルモータおよび前記キャリッジを取り
付けるベースと、前記スピンドルモータおよび前記キャ
リッジを内包し密封するカバーとを備える磁気ディスク
装置において、 前記ベースおよび前記カバーは、積層された磁気ディス
クの外形に近接するように、前記磁気ディスクの回転部
近傍の両端部に略円筒状の凹部をそれぞれ備え、装置内
の空間容積を低減することを特徴とする磁気ディスク装
置。
1. A magnetic disk, a spacer ring laminated alternately with the magnetic disk, a spindle motor rotating integrally with the magnetic disk and the spacer ring, and writing / reading data to / from the magnetic disk. A magnetic head having a magnetic head, an arm supporting the magnetic head, a carriage for positioning the magnetic head, a base for mounting the spindle motor and the carriage, and a cover for enclosing and sealing the spindle motor and the carriage. In the disk device, the base and the cover are provided with substantially cylindrical recesses at both ends in the vicinity of the rotating part of the magnetic disk so as to be close to the outer shape of the stacked magnetic disks. Magnetic disk device characterized by reduction
【請求項2】 請求項1記載の磁気ディスク装置は、装
置内部に吸湿性を有する成形部材もしくは塗料を用いて
なることを特徴とする磁気ディスク装置。
2. The magnetic disk device according to claim 1, wherein a molded member having a hygroscopic property or a paint is used inside the device.
JP29284294A 1994-11-28 1994-11-28 Magnetic disk device Pending JPH08147960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29284294A JPH08147960A (en) 1994-11-28 1994-11-28 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29284294A JPH08147960A (en) 1994-11-28 1994-11-28 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPH08147960A true JPH08147960A (en) 1996-06-07

Family

ID=17787076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29284294A Pending JPH08147960A (en) 1994-11-28 1994-11-28 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPH08147960A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425346B1 (en) * 2001-09-12 2004-03-30 삼성전자주식회사 Hard disk drive employing a structure for reducing vibration
KR100524911B1 (en) * 1998-09-22 2005-12-30 삼성전자주식회사 Hard disk drive
WO2022025157A1 (en) * 2020-07-31 2022-02-03 富士フイルム株式会社 Magnetic recording/reproducing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02257489A (en) * 1989-03-29 1990-10-18 Nec Corp Magnetic disk device
JPH06162732A (en) * 1991-07-29 1994-06-10 Areal Technol Inc Compact-disk drive useful for laptop computer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02257489A (en) * 1989-03-29 1990-10-18 Nec Corp Magnetic disk device
JPH06162732A (en) * 1991-07-29 1994-06-10 Areal Technol Inc Compact-disk drive useful for laptop computer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100524911B1 (en) * 1998-09-22 2005-12-30 삼성전자주식회사 Hard disk drive
KR100425346B1 (en) * 2001-09-12 2004-03-30 삼성전자주식회사 Hard disk drive employing a structure for reducing vibration
WO2022025157A1 (en) * 2020-07-31 2022-02-03 富士フイルム株式会社 Magnetic recording/reproducing device

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