JPH02236889A - Air hole structure of magnetic disk device - Google Patents
Air hole structure of magnetic disk deviceInfo
- Publication number
- JPH02236889A JPH02236889A JP5645489A JP5645489A JPH02236889A JP H02236889 A JPH02236889 A JP H02236889A JP 5645489 A JP5645489 A JP 5645489A JP 5645489 A JP5645489 A JP 5645489A JP H02236889 A JPH02236889 A JP H02236889A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- groove
- long
- air hole
- thin
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010409 thin film Substances 0.000 claims abstract 2
- 238000009423 ventilation Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 abstract description 6
- 230000035699 permeability Effects 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ディスク装置における通気孔構造に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vent structure in a magnetic disk drive.
従来の装置は，特開昭６２−２８１１８６号公報に記載
のように、磁気ディスク装置のハウジングの外部と内部
との間の長くて細い通気孔を形成する為に、細く長い溝
を設けたキャップを通気孔に取付ける様になっていた。As described in Japanese Patent Application Laid-Open No. 62-281186, the conventional device has a cap with a long and thin groove to form a long and thin ventilation hole between the outside and the inside of the housing of the magnetic disk device. It was supposed to be attached to the ventilation hole.
上記従来技術は、細く長い通気孔を構成する為の溝を有
するキャップの材質について考慮されておらず、合成樹
脂の場合透湿性が高い為，キャップの表面等細く長い通
気孔以外から水蒸気がハウジング内に進入してしまう。The above conventional technology does not take into account the material of the cap that has the grooves for configuring the long and thin ventilation holes, and since synthetic resin has high moisture permeability, water vapor can leak into the housing from other than the long and thin ventilation holes, such as the surface of the cap. It goes inside.
従って，磁気ディスク装置内部の湿度の上昇を十分に抑
えることができなかった．
この欠点を除去するために、キャップ材を透湿度の無い
材質で作ると高価なものになってしまう。Therefore, it was not possible to sufficiently suppress the rise in humidity inside the magnetic disk drive. In order to eliminate this drawback, if the cap material is made of a material that is not moisture permeable, it will become expensive.
本発明の目的は、磁気ディスク装置のハウジングに溝を
設け透湿性のない密閉シールを貼るだけで、簡単、に且
つ安価に細く長い通気孔を構成することにある。An object of the present invention is to simply and inexpensively construct a long and narrow ventilation hole by simply providing a groove in the housing of a magnetic disk drive and pasting a non-moisture-permeable seal.
上記目的を達成するために、磁気ディスクおよび磁気ヘ
ッドを収納し、通気口を有する磁気ディスク装置のハウ
ジングの外部あるいは内部側の少なくとも一方の表面に
、幅が狭く浅く長い溝を設ける。In order to achieve the above object, a narrow, shallow and long groove is provided on at least one of the external and internal surfaces of a housing of a magnetic disk device that houses a magnetic disk and a magnetic head and has a vent.
そのとき、溝を形成する***部分の先端は、平面部を有
し滑らかである。At this time, the tip of the raised portion forming the groove has a flat surface and is smooth.
前記溝の一端を開放した上で、あたかも細く長い通気孔
が形成される様に、前記溝の上に密閉シールを貼付けて
、細く長い通気孔を形成する。After opening one end of the groove, a sealing seal is pasted on the groove to form a long and narrow ventilation hole, as if a long and thin ventilation hole is being formed.
この密閉シールは、通気性が全くあるいは殆んどない薄
膜状の部材から成り、その片面には粘着剤が塗布してあ
るか、あるいは両面に粘着剤を有するシールが貼付けて
ある．
前記密閉シールの粘着面は、前記溝を形成する***部分
の上端の滑らかな平面部に接合し、途中岐路の無い細く
長い前記通気孔を形成している．〔作用〕
前記ハウジングの表面に設けられた溝の一端を部分に密
閉シールを貼付け、通気孔を形成する．前記ハウジング
の内部と外部を結ぶ細く長い通気孔は、磁気ディスク装
置内への水蒸気の進入を抑制する働きをする．
前記ハウジングは一般にアルミニウム合金あるいはその
他金属材料によって構成され、全く透湿性が無い。また
、前記密閉シールも全くあるいは殆んど透湿性が無い材
料を用いるので、細く長い通気孔以外の場所から水蒸気
が進入することはなく、ハウジング内部へ過大に水蒸気
が進入することを抑えることができる．
〔実施例〕
以下、本発明の一実施例を第１．２．３図により説明す
る．
記録媒体であるディスクとディスクへ情報の記録再生を
行なうヘッドを収納する密閉式のハウジング１１はハウ
ジングの外部と内部を結ぶ主通気孔１２を有し、ハウジ
ングの内部側表面↓こは主通気孔１２を起点として成る
幅が狭く浅く長い溝べ３と，その溝を形成している***
部分１４を有する。This hermetic seal consists of a thin film-like member with no or almost no air permeability, and one side of which is coated with an adhesive, or both sides of which are affixed with adhesive stickers. The adhesive surface of the airtight seal is bonded to the smooth flat surface of the upper end of the raised portion forming the groove, forming the long and narrow ventilation hole with no intermediate branch. [Operation] An airtight seal is attached to one end of the groove provided on the surface of the housing to form a ventilation hole. The long, thin ventilation hole connecting the inside and outside of the housing functions to suppress the entry of water vapor into the magnetic disk device. The housing is generally constructed of aluminum alloy or other metal material and is completely non-permeable to moisture. In addition, since the airtight seal is made of a material that has no or almost no moisture permeability, water vapor will not enter from any place other than the long, narrow ventilation hole, and it is possible to prevent excessive water vapor from entering the inside of the housing. can. [Example] An example of the present invention will be described below with reference to Figures 1.2.3. A sealed housing 11 that houses a disk as a recording medium and a head for recording and reproducing information on the disk has a main ventilation hole 12 that connects the outside and the inside of the housing. It has a narrow, shallow and long groove 3 starting from 12, and a raised portion 14 forming the groove.
さらに前記溝の終点である開放口１５を有する。Furthermore, it has an open opening 15 which is the end point of the groove.
第２図は、前記ハウジングの内部側の表面に、主通気孔
１２を起点として成る前記溝とその溝を形成している隆
起部分を有し、前記溝の開放されている側に密閉シール
２１を貼付けて、細く長い補通気孔２２が形成されたと
ころの縦断面図である。FIG. 2 shows that the inner surface of the housing has the groove starting from the main ventilation hole 12 and a raised portion forming the groove, and a seal 21 on the open side of the groove. It is a longitudinal cross-sectional view of a place where a thin and long auxiliary ventilation hole 22 is formed by pasting.
第３図は，前記溝の開放口を十分開放しながら前記溝の
開放されている側に密閉シールを貼付けたところの平面
図である。FIG. 3 is a plan view showing a state where the opening of the groove is sufficiently opened and a sealing seal is pasted on the open side of the groove.
前記ハウジングは、アルミニウム合金から成り、前記密
閉シールは片面に粘着面を有する金属箔から成る．
また前記ハウジングはアルミニウム合金以外の金属材料
から成ることが考えられ、前記密閉シールは金属箔以外
にも通気性の全くあるいは殆んどない合成樹脂、あるい
は表面処理されたシートを用いても良い。The housing is made of an aluminum alloy and the hermetic seal is made of metal foil with an adhesive surface on one side. Further, the housing may be made of a metal material other than an aluminum alloy, and the airtight seal may be made of a synthetic resin with no or almost no air permeability, or a surface-treated sheet, in addition to metal foil.
前記密閉シートは柔軟性を持っているので、仮に溝を形
成している***部分の高さが揃っていなくても、前記密
閉シートは前記***部分の高さに追従するので、前記細
く長い通気孔が途中で通気孔の外部に開放したり通気孔
間が短絡することがなく，熱変形に対しても前記ハウジ
ングと前記密閉シールの熱膨張係数を同等にすることに
より、密閉シールはがれによる前記細く長い通気孔が途
中で通気孔の外部に開放したり通気孔間で短絡すること
がない．
第４図，第５図，第６図は前記溝を直線的に施したとき
の一実施例を示す．
溝を直線的にすると前記密閉シールを前記溝の開放して
いる側に貼付けたときに成る細く長い通気孔は直線的に
なるので，通気抵抗が小さく前記ハウジングの内部と外
部の気圧差を素早く低減できる．
〔発明の効果〕
本発明は以上説明したように構成されているので，以下
に記載されるような効果を奏する．ハウジングは一般に
アルミニウム合金などの金属から成り、密閉シールも金
属箔などの透湿性の無いあるいは極めて小さい材料から
成っているので、ハウジング表面に設けられた溝と密閉
シールから情成される細く長い通気孔によって，通気孔
以外の場所から水蒸気が進入することなく、ハウジング
内部への水蒸気の進入を十分に抑制できる。Since the sealing sheet has flexibility, even if the heights of the raised portions forming the grooves are not the same, the sealing sheet will follow the height of the raised portions, so that the narrow and long passages will By making the coefficients of thermal expansion of the housing and the hermetic seal the same, the pores do not open to the outside of the vent midway, or short circuits occur between the vents. The long, thin ventilation holes do not open up to the outside midway through the ventilation holes, and short circuits do not occur between the ventilation holes. Figures 4, 5, and 6 show an example in which the grooves are formed linearly. If the groove is made straight, the thin and long ventilation hole created when the seal is pasted on the open side of the groove will be straight, resulting in low ventilation resistance and quickly eliminating the pressure difference between the inside and outside of the housing. It can be reduced. [Effects of the Invention] Since the present invention is configured as described above, it produces the effects described below. The housing is generally made of metal such as aluminum alloy, and the hermetic seal is also made of metal foil or other non-moisture permeable or extremely small material, so the long and narrow passage created by the groove and the hermetic seal on the housing surface. The pores prevent water vapor from entering from places other than the ventilation holes, and can sufficiently suppress entry of water vapor into the housing.
また、細く長い通気孔を構成する部材が、ハウジングと
密閉シールだけなので，簡単に且つ安価に細く長い通気
孔を得ることができる。In addition, since the only members constituting the long and thin ventilation hole are the housing and the seal, the long and thin ventilation hole can be easily and inexpensively obtained.
第１図は本発明の一実施例のハウジング表面に施された
浅く狭く長い溝の平面図、第２図は第１図に記された溝
の開放された側に密閉シールを貼付けたときの縦断面図
、第３図は第２図の平面図、第４図は溝を直線的に施し
た本発明の一実施例，第５図は第４図に記された溝の開
放された側に密閉シールを貼付けたときの平面図、第６
図は第５図の縦断面図である。
１１・・・ハウジング、１２・・・主通気孔、１３・・
・溝、１４・・・***部分，１５・・・開放口、２１・
・・密閉シール、２２・・・補通気孔、４１・・・ハウ
ジング、４２・・・主通気孔、４３・・・溝、４４・・
・***部分、４５・・・開放口，５１・・・密閉シール
、ａ１・・・補通気孔。
為 １ 図
第 ３ 図
集 ２ 閏
嶌 ４− 図FIG. 1 is a plan view of a shallow, narrow and long groove formed on the housing surface of an embodiment of the present invention, and FIG. 2 is a plan view of the groove shown in FIG. 1 when a sealing seal is attached to the open side. 3 is a plan view of FIG. 2, FIG. 4 is an embodiment of the present invention in which grooves are formed linearly, and FIG. 5 is an open side of the grooves shown in FIG. 4. Plan view when the seal is pasted on the 6th
The figure is a longitudinal sectional view of FIG. 5. 11...Housing, 12...Main ventilation hole, 13...
・Groove, 14... Raised portion, 15... Open mouth, 21.
・Airtight seal, 22 ・Auxiliary ventilation hole, 41 ・Housing, 42 ・Main ventilation hole, 43 ・Groove, 44 ・・
- Raised portion, 45...Opening port, 51...Airtight seal, a1...Supplementary ventilation hole. For 1 Figure 3 Collection of Figures 2 Encroachment 4- Figure
Claims (1)
部への水蒸気の進入を制限しつつ該ハウジング内部と外
部との間に空気を通過させる磁気ディスク装置の通気孔
構造において、上記ハウジングに内部と外部を貫通する
孔を設け、上記ハウジングの表面に上記孔の開口部から
細く長い溝を設け、上記溝の上記開口部と反対端の部分
を残して上記溝を隠うように通気性のない薄膜状の部材
を接着せしめて前記ハウジングの内部と外部を貫通する
細長い管路を形成したことを特長とする磁気ディスク装
置の通気孔構造。1. In the ventilation hole structure of a magnetic disk device that restricts the entry of water vapor into the inside of a magnetic disk device having a sealed housing and allows air to pass between the inside and outside of the housing, the housing has an inside and an outside. A thin and long groove is provided on the surface of the housing from the opening of the hole, and a non-porous thin film is formed to cover the groove, leaving a portion of the groove opposite to the opening. 1. A vent structure for a magnetic disk drive, characterized in that a long and narrow conduit passing through the inside and outside of the housing is formed by bonding together shaped members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5645489A JPH02236889A (en) | 1989-03-10 | 1989-03-10 | Air hole structure of magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5645489A JPH02236889A (en) | 1989-03-10 | 1989-03-10 | Air hole structure of magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02236889A true JPH02236889A (en) | 1990-09-19 |
Family
ID=13027553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5645489A Pending JPH02236889A (en) | 1989-03-10 | 1989-03-10 | Air hole structure of magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02236889A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128159A (en) * | 1997-05-30 | 2000-10-03 | Fujitsu Ltd. | Disk device having ventilation structure between outside and inside |
| KR100417230B1 (en) * | 1996-05-29 | 2004-04-21 | 삼성전자주식회사 | Method for sealing gap between two coupled components without using gasket |
-
1989
- 1989-03-10 JP JP5645489A patent/JPH02236889A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100417230B1 (en) * | 1996-05-29 | 2004-04-21 | 삼성전자주식회사 | Method for sealing gap between two coupled components without using gasket |
| US6128159A (en) * | 1997-05-30 | 2000-10-03 | Fujitsu Ltd. | Disk device having ventilation structure between outside and inside |
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