JPH0467277B2 - - Google Patents
Info
- Publication number
- JPH0467277B2 JPH0467277B2 JP3960283A JP3960283A JPH0467277B2 JP H0467277 B2 JPH0467277 B2 JP H0467277B2 JP 3960283 A JP3960283 A JP 3960283A JP 3960283 A JP3960283 A JP 3960283A JP H0467277 B2 JPH0467277 B2 JP H0467277B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing plate
- disk
- cover
- magnetic disk
- heat shielding
- 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.)
- Expired
Links
Classifications
-
- 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
Description
【発明の詳細な説明】
この発明は磁気デイスク装置の円板間温度差の
改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the temperature difference between disks in a magnetic disk device.
従来、この種の装置として第１図に示すものが
あつた。１は高精度で回転する軸、２は軸１に固
定されたハブ、３〜６は記録円板、７〜９は円板
３〜６の間にはさまれているスペーサ、１０は円
板３〜６およびスペーサ７〜９をハブ２に絞めつ
け固定している記録円板固定板、１１はこれらす
べてを密封しているカバーで、カバー裏面には風
路１１１を備えている。１２はこのカバーの風路
に取り付けられているフイルタである。軸１は軸
受によつて箱体に支持されている。 Conventionally, there has been a device of this type as shown in FIG. 1 is a shaft that rotates with high precision, 2 is a hub fixed to shaft 1, 3 to 6 are recording disks, 7 to 9 are spacers sandwiched between disks 3 to 6, and 10 is a disk A recording disk fixing plate 3 to 6 and spacers 7 to 9 are tightened and fixed to the hub 2, and 11 is a cover that seals them all, and an air passage 111 is provided on the back surface of the cover. 12 is a filter attached to the air passage of this cover. The shaft 1 is supported by a box body by a bearing.
次に動作について説明する。 Next, the operation will be explained.
第１図に矢印で示してあるのは風の流れ方であ
る。軸１が回転するとハブ２、円板３〜６、スペ
ーサ７〜９も共に回転し、回転部内の空気はスペ
ーサ７〜９に設けられている穴より流れ出し、円
板３〜６の間を通り、フイルタ１２で浄化された
後にカバー１１の裏面の風路１１１を通過して円
板固定板１０に設けられている穴より再び回転部
分内に入る。 The arrows in Figure 1 indicate the direction of wind flow. When the shaft 1 rotates, the hub 2, discs 3 to 6, and spacers 7 to 9 also rotate, and the air in the rotating part flows out from the holes provided in the spacers 7 to 9 and passes between the discs 3 to 6. After being purified by the filter 12, the air passes through the air passage 111 on the back side of the cover 11 and enters the rotating part again through the hole provided in the disk fixing plate 10.
従来の磁気デイスク装置は以上のように構成さ
れているので、空気の循環の過程で空気はカバー
１１付近を通過するときに冷却されて円板固定板
１０に吹きつけられることになる。そのため円板
固定板１０が冷却されてもそれに隣接する記録円
板３の温度が下がり、他の記録円板４〜６との間
に温度差による線膨張量に差を生じるという欠点
があつた。 Since the conventional magnetic disk device is constructed as described above, the air is cooled as it passes near the cover 11 during the air circulation process and is blown onto the disk fixing plate 10. Therefore, even when the disk fixing plate 10 is cooled, the temperature of the recording disk 3 adjacent thereto decreases, resulting in a disadvantage that a difference in linear expansion due to the temperature difference occurs between the disk fixing plate 10 and the other recording disks 4 to 6. .
この発明は、上記のような従来のものの欠点を
除去するためになされたもので、円板固定板１０
に断熱用カバーを取り付けることにより円板間温
度差を極限にまで小さくした磁気デイスク装置を
提供することを目的としている。 This invention was made in order to eliminate the drawbacks of the conventional ones as described above.
The object of the present invention is to provide a magnetic disk device in which the temperature difference between disks is minimized by attaching a heat insulating cover to the disk.
以下、この発明の一実施例を図について説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第２図において１３は円板固定板１０に例えば
接着により取り付けられている断熱カバーで熱伝
導率の小さいプラスチツクでできている。 In FIG. 2, reference numeral 13 denotes a heat insulating cover attached to the disc fixing plate 10, for example by adhesive, and is made of plastic with low thermal conductivity.
軸１が回転すると、それによつて発生する風は
フイルタ１２を通過しカバー１１の近傍を通つて
冷却された後、断熱カバー１３に設けられている
穴と円板固定板１０に設けられている穴を通つて
再び回転部内に入る。このため円板固定板１０の
表面で冷風に直接さらされる面積は非常に小さく
なる。 When the shaft 1 rotates, the resulting wind passes through the filter 12 and near the cover 11 to be cooled, and then passes through the hole provided in the heat insulating cover 13 and the hole provided in the disk fixing plate 10. Go through the hole and enter the rotating part again. Therefore, the area of the surface of the disk fixing plate 10 that is directly exposed to the cold air becomes very small.
なお、上記実施例では円板固定板１０の上面に
断熱カバー１３を設けたが、円板固定板１０と最
上部円板３の間に断熱スペーサを設けることによ
つても同様の効果を得ることができる。 In the above embodiment, the heat insulating cover 13 is provided on the upper surface of the disc fixing plate 10, but the same effect can also be obtained by providing a heat insulating spacer between the disc fixing plate 10 and the top disc 3. be able to.
以上のようにこの発明によれば、最上部の円板
のみが強く冷却されることがなくなり、従来機に
比して円板間温度差を大きく改善することができ
る。 As described above, according to the present invention, only the uppermost disk is not strongly cooled, and the temperature difference between the disks can be greatly improved compared to the conventional device.
第１図は従来の中央吹き出し循環方式の磁気デ
イスク装置を示す要部断面側面図、第２図はこの
発明の一実施例による磁気デイスク装置を示す断
面側面図である。
１……軸、２……ハブ、３〜６……記録円板、
７〜９……スペーサ、１０……円板固定板、１１
……カバー、１２……フイルタ……、１３……断
熱カバー。なお、図中同一符号は同一又は相当部
分を示す。
FIG. 1 is a cross-sectional side view of a main part of a conventional central air circulation type magnetic disk device, and FIG. 2 is a cross-sectional side view of a magnetic disk device according to an embodiment of the present invention. 1... shaft, 2... hub, 3-6... recording disk,
7-9... Spacer, 10... Disk fixing plate, 11
...Cover, 12...Filter..., 13...Insulation cover. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
ク装置において、風路の入り口にあたる記録円板
固定板に熱遮蔽手段を設けたことを特徴とする磁
気デイスク装置。 ２ 熱遮蔽手段として、記録円板固定板の表面に
熱遮蔽板を取り付けたことを特徴とする特許請求
の範囲第１項記載の磁気デイスク装置。 ３ 熱遮蔽手段として、記録円板固定板と円板と
の間に断熱スペーサを設けたことを特徴とする特
許請求の範囲第１項又は第２項記載の磁気デイス
ク装置。[Scope of Claims] 1. A magnetic disk device having a central blow-off type circulation mechanism, characterized in that a heat shielding means is provided on the recording disk fixing plate at the entrance of the air path. 2. A magnetic disk device according to claim 1, characterized in that a heat shielding plate is attached to the surface of the recording disk fixing plate as a heat shielding means. 3. The magnetic disk device according to claim 1 or 2, characterized in that a heat insulating spacer is provided between the recording disk fixing plate and the disk as a heat shielding means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3960283A JPS59165281A (en) | 1983-03-09 | 1983-03-09 | Magnetic disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3960283A JPS59165281A (en) | 1983-03-09 | 1983-03-09 | Magnetic disc device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59165281A JPS59165281A (en) | 1984-09-18 |
| JPH0467277B2 true JPH0467277B2 (en) | 1992-10-27 |
Family
ID=12557656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3960283A Granted JPS59165281A (en) | 1983-03-09 | 1983-03-09 | Magnetic disc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59165281A (en) |
-
1983
- 1983-03-09 JP JP3960283A patent/JPS59165281A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59165281A (en) | 1984-09-18 |
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