JP2000231782A - Disk device and its heat radiation method - Google Patents
Disk device and its heat radiation methodInfo
- Publication number
- JP2000231782A JP2000231782A JP3207299A JP3207299A JP2000231782A JP 2000231782 A JP2000231782 A JP 2000231782A JP 3207299 A JP3207299 A JP 3207299A JP 3207299 A JP3207299 A JP 3207299A JP 2000231782 A JP2000231782 A JP 2000231782A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- heat radiation
- recording medium
- wind
- rotating
- 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
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ケーシング内で円
盤状記録媒体を回転させるディスク装置の放熱方法とデ
ィスク装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for radiating heat from a disk device for rotating a disk-shaped recording medium in a casing and a disk device.
【０００２】[0002]
【従来の技術】ディスク装置のひとつであるＣＤ−ＲＯ
Ｍドライブは、図２に示すように構成されている。ほぼ
閉ざされたユニットケース１の内部はメカシャーシ４に
よって上下に仕切られている。上側の第１のエリア１０
ａには、ＣＤ２を載置するトレイ３と、ターンテーブル
１１を回転駆動するモータ７と、ＣＤ２の記録面に光を
照射してデータを読み取る光学ヘッド６と、この光学ヘ
ッド６をＣＤ２の径方向と交差する方向に移動させるト
ラバースメカニズム１２などが設けられている。2. Description of the Related Art A CD-RO which is one of disk devices
The M drive is configured as shown in FIG. The inside of the substantially closed unit case 1 is vertically partitioned by a mechanical chassis 4. Upper first area 10
a includes a tray 3 on which the CD 2 is placed, a motor 7 for rotating and driving the turntable 11, an optical head 6 for reading data by irradiating light onto the recording surface of the CD 2, and a diameter of the optical head 6 for the CD 2. A traverse mechanism 12 for moving in a direction intersecting the direction is provided.
【０００３】ユニットケース１とメカシャーシ４によっ
て密閉された下側の第２のエリア１０ｂは、前記モータ
７を駆動するドライバー集積回路８が搭載された回路基
板５が設けられている。また、回路基板５の前記ドライ
バー集積回路８の実装面とは反対側の実装面には、ドラ
イバー集積回路８の放熱を目的として放熱器９が実装さ
れている。[0005] A circuit board 5 on which a driver integrated circuit 8 for driving the motor 7 is mounted is provided in a lower second area 10 b sealed by the unit case 1 and the mechanical chassis 4. A radiator 9 is mounted on the mounting surface of the circuit board 5 opposite to the mounting surface of the driver integrated circuit 8 for heat radiation of the driver integrated circuit 8.
【０００４】[0004]
【発明が解決しようとする課題】上記のように構成され
たＣＤ−ＲＯＭドライブでは、運転中に光学ヘッド６や
ドライバー集積回路８が発熱して、第１，第２のエリア
１０ａ，１０ｂの温度が上昇する。ドライバー集積回路
８の放熱が不十分であった場合には、前記光学ヘッド６
が設けられている第１のエリア１０ａの温度が大幅に上
昇して、光学特性に影響を与える。In the CD-ROM drive configured as described above, the optical head 6 and the driver integrated circuit 8 generate heat during operation, and the temperature of the first and second areas 10a and 10b is increased. Rises. If the heat radiation of the driver integrated circuit 8 is insufficient, the optical head 6
Greatly increases the temperature of the first area 10a where the is provided, affecting the optical characteristics.
【０００５】具体的には、ＣＤ２の回転スピードが速い
３２倍速ＣＤ−ＲＯＭドライブでは、放熱器９の放熱が
ユニットケース１内の温度上昇に追いつかず、光学特性
が劣化するという問題がある。放熱効率を改善するため
に、冷却ファンを設け強制通風を行うことも考えられる
が、冷却ファンの設置スペースが必要になり、より一層
の小型化を要求されている場合には適合しないものであ
る。More specifically, in a 32 × -speed CD-ROM drive in which the rotation speed of the CD 2 is high, there is a problem that the heat radiation of the radiator 9 cannot catch up with the temperature rise in the unit case 1 and the optical characteristics are deteriorated. In order to improve the heat radiation efficiency, it is conceivable to provide a cooling fan and perform forced ventilation, but it is not suitable when the cooling fan installation space is required and further miniaturization is required .
【０００６】本発明は前記問題点を解決し、放熱効率が
良く、しかも冷却ファンなどを使用しなくても良好な放
熱効果が期待できるディスク装置の放熱方法を提供する
ことを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a heat radiating method for a disk drive which has good heat radiating efficiency and can be expected to have a good heat radiating effect without using a cooling fan or the like.
【０００７】[0007]
【課題を解決するための手段】本発明のディスク装置の
放熱方法は、記録媒体であるディスクを回転させて発生
した風を、積極的に放熱の実行に使用することを特徴と
する。この本発明の構成によると、冷却ファンなどを使
用しなくても良好な放熱効果が期待できる。The heat radiation method for a disk drive according to the present invention is characterized in that wind generated by rotating a disk as a recording medium is positively used for radiation. According to the configuration of the present invention, a good heat radiation effect can be expected without using a cooling fan or the like.
【０００８】[0008]
【発明の実施の形態】請求項１記載のディスク装置の放
熱方法は、ケーシング内で円盤状記録媒体を回転させて
発生した風を、このケーシング内の被冷却部に循環させ
て放熱を行うことを特徴とする。請求項２記載のディス
クの放熱方法は、請求項１において、被冷却部が、円盤
状記録媒体を回転させるモータのドライバであることを
特徴とする。According to a first aspect of the present invention, there is provided a heat dissipation method for a disk drive, wherein wind generated by rotating a disk-shaped recording medium in a casing is circulated to a cooled portion in the casing to perform heat dissipation. It is characterized by. According to a second aspect of the present invention, in the first aspect, the cooled portion is a motor driver for rotating the disk-shaped recording medium.
【０００９】請求項３記載のディスクの放熱方法は、請
求項１において、被冷却部が、円盤状記録媒体にアクセ
スするヘッドであることを特徴とする。請求項４記載の
ディスク装置は、ケーシング内で円板状記録媒体を回転
させて記録または再生するディスク装置において、前記
円盤状記録媒体を回転させて発生した風を、前記ケーシ
ング内の被冷却部を通過して前記円盤状記録媒体の回転
部へと循環する循環路を形成したことを特徴とする。According to a third aspect of the present invention, in the first aspect, the cooled portion is a head for accessing a disk-shaped recording medium. 5. The disk device according to claim 4, wherein a disk-shaped recording medium is rotated in a casing to perform recording or reproduction, wherein a wind generated by rotating the disk-shaped recording medium is cooled by a cooled portion in the casing. And a circulation path is formed that circulates through the rotating portion of the disc-shaped recording medium through the recording medium.
【００１０】以下、本発明のディスク装置の放熱方法を
具体的な実施の形態に基づいて説明する。なお、従来例
を示す図２と同様をなすものには同一の符号を付けて説
明する。図１は、本発明のディスク装置の放熱方法を実
現するＣＤ−ＲＯＭドライブを示す。Hereinafter, a heat radiation method for a disk drive according to the present invention will be described based on specific embodiments. Note that components similar to those in FIG. 2 showing a conventional example are denoted by the same reference numerals. FIG. 1 shows a CD-ROM drive for realizing a heat dissipation method for a disk drive according to the present invention.
【００１１】この実施の形態では、第１のエリア１０ａ
と第２のエリア１０ｂに被冷却部の放熱手段として空気
の循環路を形成した点で異なるが、それ以外の基本的な
構成は上記従来例を示す図２とほぼ同様である。第１の
エリア１０ａと第２のエリア１０ｂを仕切るメカシャー
シ４には、第１のエリア１０ａの空気と第２のエリア１
０ｂの空気の流通を自在にするための通風口１３ａ，１
３ｂを設け、発生した風をトレイ３の上面から下面に移
動する通風口１４ａ〜１４ｃをトレイ３に設け、さらに
通風口１５ａ，１５ｂを回路基板５に設けて、ユニット
ケース１の内部にＣＤ２の回転により発生した風を被冷
却部を通過してＣＤ２の回転部へと循環する循環路が形
成されている。In this embodiment, the first area 10a
The second embodiment is different from the first embodiment in that an air circulation path is formed as a heat radiating means for the portion to be cooled in the second area 10b. The mechanical chassis 4 that separates the first area 10a and the second area 10b has the air in the first area 10a and the second area 1
Ventilation holes 13a, 1 to allow free air flow
3b, ventilation holes 14a to 14c for moving the generated wind from the upper surface to the lower surface of the tray 3 are provided on the tray 3, and ventilation holes 15a and 15b are further provided on the circuit board 5. A circulation path is formed to circulate the wind generated by the rotation through the portion to be cooled and to the rotating portion of the CD2.
【００１２】このような循環路の形成されたＣＤ−ＲＯ
Ｍドライブでは、スピンドルモータ７を駆動してディス
クメディア２を回転させると、第１のエリア１０ａで風
が発生し、この風は通風口１４ａ〜１４ｃを介してトレ
イ３の下部へ流れ込んで光学ヘッド６の発生する熱を放
熱する。また、通風口１４ａ〜１４ｃを経て通風口１３
ａより第２のエリア１０ｂへ流入した空気は、ドライバ
ー集積回路８の上部を通過して回路基板５の放熱を行う
ほか、通風口１５ａを介して回路基板５のドライバー集
積回路８の実装面とは反対側へと流入し、回路基板５を
効率良く放熱する。図中の矢印は、ＣＤ２の回転により
発生した風の流れを示したものである。CD-RO having such a circulation path formed
In the M drive, when the spindle motor 7 is driven to rotate the disk medium 2, wind is generated in the first area 10a, and the wind flows into the lower portion of the tray 3 through the ventilation holes 14a to 14c, and 6. Dissipate the heat generated by 6. In addition, the ventilation holes 13a through the ventilation holes 14a to 14c.
The air that has flowed into the second area 10b from above a passes through the upper part of the driver integrated circuit 8 and radiates heat to the circuit board 5, and also communicates with the mounting surface of the driver integrated circuit 8 of the circuit board 5 through the ventilation port 15a. Flows into the opposite side and efficiently radiates heat to the circuit board 5. The arrows in the figure indicate the flow of the wind generated by the rotation of the CD2.
【００１３】従って、ＣＤ２の運転中に光学ヘッド６や
ドライバー集積回路８などが発熱しても、ユニットケー
ス１内を循環する風により被冷却部の放熱が効率良く行
なわれ、特にＣＤ２の回転スピードが速い３２倍速ＣＤ
−ＲＯＭドライブであっても、十分な放熱が効率良く行
なわれ、温度上昇による光学特性の劣化などが解消され
る。Therefore, even if the optical head 6 and the driver integrated circuit 8 generate heat during the operation of the CD 2, heat is efficiently radiated from the cooled portion by the wind circulating in the unit case 1, and particularly, the rotational speed of the CD 2 Fast 32x CD
-Even in the case of a ROM drive, sufficient heat radiation is efficiently performed, and deterioration of optical characteristics due to temperature rise is eliminated.
【００１４】また、ＣＤ２の回転を利用してユニットケ
ース１の内部の空気を循環させているため、冷却ファン
による放熱のように新たにファンを設置したりする必要
がなく装置の小型化が実現でき、温度検出手段を設けて
温度をモニターしながらファンの回転数を変える必要な
どもなくなる。なお、ＣＤ２の回転が低速である場合に
は、十分な風力は得られないが、光学ヘッド６やドライ
バー集積回路８などが発熱するのはＣＤ２の高速回転、
例えば３２倍速での回転時などであるため、このような
高速回転時にはドライバー集積回路８は十分冷やされて
上側の部屋の温度上昇はほとんど引き起こさず、光学ヘ
ッドの特性の劣化は見られなくなる。Further, since the air inside the unit case 1 is circulated by utilizing the rotation of the CD 2, there is no need to install a new fan unlike heat radiation by a cooling fan, thereby realizing the miniaturization of the apparatus. This eliminates the necessity of changing the number of revolutions of the fan while monitoring the temperature by providing a temperature detecting means. When the rotation of the CD 2 is low, sufficient wind power cannot be obtained, but the optical head 6 and the driver integrated circuit 8 generate heat only when the CD 2 rotates at a high speed.
For example, at the time of rotation at 32 × speed, the driver integrated circuit 8 is sufficiently cooled during such high-speed rotation, so that the temperature of the upper room hardly rises, and deterioration of the characteristics of the optical head is not observed.
【００１５】また、上記の実施の形態では再生専用のＣ
Ｄ−ＲＯＭドライブを例に挙げて説明したが、記録装置
のＣＤ−ＲやＣＤ−ＲＷなどの場合も同様である。ま
た、上記実施の形態では、トレイ３、メカシャーシ４、
回路基板５の全てに通風口１３ａ，１３ｂ、１４ａ〜１
４ｃ、１５ａ，１５ｂを設けて内部空気の循環路を形成
したが、通風口の形成位置や形成個数なども特に限定さ
れるものではなく、回路基板５や光学ヘッド６などの被
冷却部を空気が通過するような循環路が形成されるもの
であればよい。In the above embodiment, the reproduction-only C
Although a D-ROM drive has been described as an example, the same applies to a recording device such as a CD-R or CD-RW. In the above embodiment, the tray 3, the mechanical chassis 4,
Ventilation holes 13a, 13b, 14a to 1
4c, 15a, and 15b are provided to form a circulation path of the internal air. However, the formation position and the number of the ventilation holes are not particularly limited, and the cooled parts such as the circuit board 5 and the optical head 6 are formed by air. What is necessary is just to form the circulation path which passes through.
【００１６】また、上記実施の形態では回路基板５に放
熱器９を設けたが、本発明はこれに限定されるものでは
なく、回路基板５に放熱器９を設置せずにユニットケー
ス１の内部を循環する空気のみで放熱を行っても良い。Although the radiator 9 is provided on the circuit board 5 in the above embodiment, the present invention is not limited to this. The heat may be radiated only by the air circulating inside.
【００１７】[0017]
【発明の効果】以上のように本発明のディスク装置の放
熱方法によれば、円盤状記録媒体の回転により発生した
風を積極的に利用して放熱を行うため、冷却ファンなど
を使用しなくても良好な放熱効果が得られ、温度の上が
る円盤状記録媒体の高回転時には、回転に沿って風力も
上がり、効率の良い放熱が行える。As described above, according to the method of radiating heat of a disk device of the present invention, heat is radiated by positively utilizing the wind generated by the rotation of the disk-shaped recording medium. In this case, a good heat radiation effect can be obtained, and when the temperature of the disk-shaped recording medium increases, the wind power increases along with the rotation, and efficient heat radiation can be performed.
【００１８】また、冷却ファンなどの冷却手段を設ける
必要がないため、より小型化の装置が実現できる。Further, since there is no need to provide a cooling means such as a cooling fan, a more compact apparatus can be realized.
【図１】（実施の形態）におけるディスク装置の断面図FIG. 1 is a sectional view of a disk device according to an embodiment.
【図２】従来のディスク装置の断面図FIG. 2 is a sectional view of a conventional disk drive.
１ ユニットケース ２ ディスク ３ トレイ ４ メカシャーシ ５ 回路基板 ６ 光学ヘッド ７ モータ ８ ドライバー集積回路 １３ａ，１３ｂ 通風口 １４ａ〜１４ｃ 通風口 １５ａ，１５ｂ 通風口 DESCRIPTION OF SYMBOLS 1 Unit case 2 Disk 3 Tray 4 Mechanical chassis 5 Circuit board 6 Optical head 7 Motor 8 Driver integrated circuit 13a, 13b Ventilation opening 14a-14c Ventilation opening 15a, 15b Ventilation opening
Claims (4)
て発生した風を、このケーシング内の被冷却部に循環さ
せて放熱を行うディスク装置の放熱方法。1. A heat radiation method for a disk drive in which air generated by rotating a disk-shaped recording medium in a casing is circulated to a cooled portion in the casing to radiate heat.
モータのドライバである請求項１記載のディスク装置の
放熱方法。2. The method according to claim 1, wherein the cooled portion is a driver of a motor for rotating the disk-shaped recording medium.
るヘッドである請求項１記載のディスク装置の放熱方
法。3. The method according to claim 1, wherein the cooled portion is a head for accessing a disk-shaped recording medium.
て記録または再生するディスク装置において、前記円盤
状記録媒体を回転させて発生した風を、前記ケーシング
内の被冷却部を通過して前記円盤状記録媒体の回転部へ
と循環する循環路を形成したディスク装置。4. A disk drive for recording or reproducing data by rotating a disk-shaped recording medium in a casing, wherein a wind generated by rotating the disk-shaped recording medium passes through a portion to be cooled in the casing. A disk device having a circulation path that circulates to a rotating portion of the disk-shaped recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3207299A JP2000231782A (en) | 1999-02-10 | 1999-02-10 | Disk device and its heat radiation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3207299A JP2000231782A (en) | 1999-02-10 | 1999-02-10 | Disk device and its heat radiation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000231782A true JP2000231782A (en) | 2000-08-22 |
Family
ID=12348688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3207299A Pending JP2000231782A (en) | 1999-02-10 | 1999-02-10 | Disk device and its heat radiation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000231782A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6880162B2 (en) * | 2001-09-26 | 2005-04-12 | Pioneer Corporation | Disk drive having an air flow path room |
| JP2007172799A (en) * | 2005-12-26 | 2007-07-05 | Pioneer Electronic Corp | Disk device |
| KR100745799B1 (en) * | 2001-08-07 | 2007-08-02 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Disk drive |
| WO2009084095A1 (en) * | 2007-12-27 | 2009-07-09 | Pioneer Corporation | Disk device |
| US7739702B2 (en) | 2003-09-12 | 2010-06-15 | Panasonic Corporation | Optical disk device having an optical pick-up module and tray arranged to carry out improved cooling |
| US7937721B2 (en) | 2007-01-29 | 2011-05-03 | Hitachi-Lg Data Storage, Inc. | Optical disc apparatus including airflow cooling mechanism |
-
1999
- 1999-02-10 JP JP3207299A patent/JP2000231782A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100745799B1 (en) * | 2001-08-07 | 2007-08-02 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Disk drive |
| US6880162B2 (en) * | 2001-09-26 | 2005-04-12 | Pioneer Corporation | Disk drive having an air flow path room |
| US7739702B2 (en) | 2003-09-12 | 2010-06-15 | Panasonic Corporation | Optical disk device having an optical pick-up module and tray arranged to carry out improved cooling |
| JP2007172799A (en) * | 2005-12-26 | 2007-07-05 | Pioneer Electronic Corp | Disk device |
| US7937721B2 (en) | 2007-01-29 | 2011-05-03 | Hitachi-Lg Data Storage, Inc. | Optical disc apparatus including airflow cooling mechanism |
| WO2009084095A1 (en) * | 2007-12-27 | 2009-07-09 | Pioneer Corporation | Disk device |
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