JP4561545B2 - Air flow adjustment structure - Google Patents

Air flow adjustment structure Download PDF

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JP4561545B2
JP4561545B2 JP2005258669A JP2005258669A JP4561545B2 JP 4561545 B2 JP4561545 B2 JP 4561545B2 JP 2005258669 A JP2005258669 A JP 2005258669A JP 2005258669 A JP2005258669 A JP 2005258669A JP 4561545 B2 JP4561545 B2 JP 4561545B2
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electronic unit
volume adjusting
air
air volume
cooling air
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JP2007073720A (en
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義人 林
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Hitachi Ltd
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Hitachi Ltd
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本発明は、複数の電子ユニットが稼動している電子装置において、これら電子ユニットの発熱を１つ以上の冷却ファンにより強制空冷していて、電子ユニットの稼動時保守を行う電子機器筐体の風量調整構造に関する。   According to the present invention, in an electronic device in which a plurality of electronic units are operating, the heat generated by these electronic units is forcibly air-cooled by one or more cooling fans, and the air volume of the electronic device casing that performs maintenance during operation of the electronic units is provided. Regarding the adjustment structure.

近年、情報機器の電子部品は発熱量の増加や高密度実装化により、電子部品の冷却性能はより高効率化と信頼性が求められている。一方で、情報処理社会のインフラはノーダウンが一般的となり、情報機器も冗長機能や稼動時保守が一般的となっている。稼動時保守を行う場合、抜き出した電子ユニットの挿入開口部から冷却風が漏れ出すことで、他の稼動中の電子ユニットが冷却風不足に陥り、異常発熱や電子装置の停止を招く結果となる。これに対し従来の技術は、特開平５−２９９８６１号や特開平６−３３４３７３号に記載のようにユニットごとの送風口に風塞ぎ板を設けて冷却風そのものを遮断する構造が一般的であった。また、電子ユニットを多段積みした装置においては下流側のユニットに冷却風を送らなければならないため、上記の特許事例のように風塞ぎ板を設けることはせず、特開２００５−１９１３４８号のように電子ユニットの挿入開口部を遮蔽する構造が図られていた。   In recent years, electronic components of information devices are required to have higher efficiency and reliability in cooling performance of electronic components due to an increase in heat generation and higher density mounting. On the other hand, the infrastructure of the information processing society is generally no-down, and the information equipment is also commonly used for redundant functions and maintenance during operation. When performing maintenance during operation, the cooling air leaks from the inserted opening of the extracted electronic unit, causing other operating electronic units to run out of cooling air, resulting in abnormal heat generation and electronic device stoppage. . On the other hand, the conventional technology generally has a structure in which a cooling plate is shut off by providing a wind-blocking plate at the air outlet of each unit as described in JP-A-5-299861 and JP-A-6-334373. It was. Further, in an apparatus in which electronic units are stacked in multiple stages, cooling air must be sent to a downstream unit. Therefore, a wind-blocking plate is not provided as in the above-mentioned patent example, as disclosed in JP-A-2005-191348. Further, a structure for shielding the insertion opening of the electronic unit has been attempted.

特開平５−２９９８６１号Japanese Patent Laid-Open No. 5-299861 特開平６−３３４３７３号JP-A-6-334373 特開２００５−１９１３４８号JP-A-2005-191348

特開平５−２９９８６１号に記載のように通風口にシャッターを設けて塞いだ場合、電子ユニットを多段に実装するような装置では冷却風の下流にある電子ユニットに冷却風を送風できなくなるという問題があった。また、上記の特許事例はいずれもシャッターの開閉機構に操作ピンや操作レバーなどの構造物が必要であり、筐体内にスペースが無かったり電子ユニットに突起物が出せないような場合は、機構そのものを付加することができない。一方、多段実装の装置においては、冷却風の上流にある電子ユニットの稼動時保守を行うときに抜き出した電子ユニットの挿入開口部から冷却風が漏れ出すのを防止するため、特開２００５−１９１３４８号のように挿入開口部に風漏れ防止機構を設けるのが一般的であるが、電子ユニットを抜き出すとその部分の圧力が著しく低下するため、抜き出した部分の風量が著しく増加し、その他の通電状態にある電子ユニットはその分風量が減少するため電子部品が過熱してしまうという問題が発生していた。   When a shutter is provided at a ventilation opening as described in Japanese Patent Laid-Open No. 5-299861, a device in which electronic units are mounted in multiple stages cannot supply cooling air to an electronic unit downstream of the cooling air. was there. In all of the above patent cases, the shutter opening / closing mechanism requires a structure such as an operation pin or an operation lever. If there is no space in the housing or the projection cannot be projected on the electronic unit, the mechanism itself Cannot be added. On the other hand, in a multi-stage mounting apparatus, in order to prevent the cooling air from leaking from the insertion opening of the electronic unit extracted when performing maintenance during operation of the electronic unit upstream of the cooling air, Japanese Patent Application Laid-Open No. 2005-191348. It is common to provide a wind leakage prevention mechanism at the insertion opening as shown in Fig. 2. However, if the electronic unit is extracted, the pressure at that part will drop significantly, so the air volume at the extracted part will increase significantly and other energization will occur. The electronic unit in the state has a problem that the electronic component is overheated because the air volume is reduced by that amount.

上記問題を解決するため、本発明は通風路に流れる風圧を利用することで操作ピンや操作レバーなどの構造物を利用することなく、電子ユニットの挿抜に連動しながら自動的に開閉することを可能にした風量調整板を通風口に設けて、抜き出した後の通風路に抜き出した電子ユニットと等価の圧力損失を与えることによって電子ユニットの抜去前後の風量バランスを保ち、抜き出した電子ユニットの開口部には風漏れ防止機構を設けて開口部から冷却風を漏らすことなく下流の電子ユニットに冷却風を送り込むことを特徴とする。   In order to solve the above problems, the present invention uses the wind pressure flowing in the ventilation path to automatically open and close the electronic unit in conjunction with the insertion / extraction of the electronic unit without using a structure such as an operation pin or an operation lever. An air volume adjustment plate that is made possible is provided at the ventilation opening, and the air volume balance before and after the removal of the electronic unit is maintained by giving a pressure loss equivalent to that of the electronic unit that is extracted to the ventilation path after extraction, and the opening of the extracted electronic unit The part is provided with a wind leakage prevention mechanism, and the cooling air is sent to the downstream electronic unit without leaking the cooling air from the opening.

本発明によれば、電子ユニットの挿抜に連動して抜き出した後の通風路に抜き出した電子ユニットと等価の圧力損失が自動的に付加されるため、電子ユニットの稼動時保守の際に他の電子ユニットの冷却風量が変動することなく連続状態での運転ができる。   According to the present invention, the pressure loss equivalent to the electronic unit extracted in the ventilation path after being extracted in conjunction with the insertion / extraction of the electronic unit is automatically added. Operation in a continuous state can be performed without fluctuation of the cooling air volume of the electronic unit.

以下、図面を参照して本発明の一実施例を説明する。   An embodiment of the present invention will be described below with reference to the drawings.

図１は本発明による電子ユニット収納筐体の風量調整機構付き風漏れ防止構造の概略を示す斜視図であり、コンピュータ等電子機器筐体の一部に形成されるシェルフ１とシェルフ２が示されている。シェルフ１とシェルフ２には複数の電子ユニットが搭載されており、シェルフ１内の電子ユニットを冷却するための冷却風６は、シェルフ１を通過したあとにシェルフ２内の電子ユニットを冷却する冷却風７となる。   FIG. 1 is a perspective view showing an outline of an air leakage prevention structure with an air volume adjusting mechanism of an electronic unit housing case according to the present invention, showing a shelf 1 and a shelf 2 formed in a part of an electronic device case such as a computer. ing. A plurality of electronic units are mounted on the shelf 1 and the shelf 2, and the cooling air 6 for cooling the electronic units in the shelf 1 is used for cooling the electronic units in the shelf 2 after passing through the shelf 1. Wind 7

シェルフ１の各電子ユニットに冷却風を送り込む送風口には風量調整機構５が取り付けられている。風量調整機構５はその構造の詳細を示す図２〜４のように回転軸１０ｄを中心に回動が可能な風量調整板１０とそれらを束ねる枠体で形成されている。風量調整板１０は風量調整穴１０ｂと浮翼１０ｃ、および電子ユニット３の抜き差しに連動して自身の回動を許容／抑制する制御レバー１０ａから形成されている。   An air volume adjusting mechanism 5 is attached to an air blowing port for sending cooling air to each electronic unit of the shelf 1. As shown in FIGS. 2 to 4 showing the details of the structure, the air volume adjusting mechanism 5 is formed of an air volume adjusting plate 10 that can be rotated around a rotating shaft 10d and a frame that bundles them. The air volume adjusting plate 10 is formed of an air volume adjusting hole 10b, a floating blade 10c, and a control lever 10a that permits / suppresses its rotation in conjunction with the insertion / removal of the electronic unit 3.

電子ユニット３が搭載されているときには、図２及び図４（左側）に示されように、電子ユニット３の端部と制御レバー１０ａおよびストッパー５ａによって風量調整板１０は冷却風６に対して平行になり、冷却風６の妨げとならない向きに保持される。   When the electronic unit 3 is mounted, as shown in FIGS. 2 and 4 (left side), the air volume adjusting plate 10 is parallel to the cooling air 6 by the end of the electronic unit 3, the control lever 10a, and the stopper 5a. And is held in a direction that does not interfere with the cooling air 6.

電子ユニット３が引き抜かれるに従って、図４（右側）に示されように、電子ユニット３から制御レバー１０ａが解き放たれ、浮翼１０ｃに加わっている冷却風６の風圧によって風量調整板１０が回動を始め、ストッパー５ａによって回動が制止される位置、すなわち風量調整板１０が冷却風６に対して垂直になる位置で保持される。電子ユニット３が完全に引き抜かれると、図３に示されるように、全ての風量調整板１０が冷却風６に対して垂直になる位置で保持される。   As the electronic unit 3 is pulled out, as shown in FIG. 4 (right side), the control lever 10a is released from the electronic unit 3, and the air volume adjusting plate 10 is rotated by the wind pressure of the cooling air 6 applied to the floating blade 10c. And the position where the rotation is stopped by the stopper 5 a, that is, the position where the air volume adjusting plate 10 is perpendicular to the cooling air 6. When the electronic unit 3 is completely pulled out, all the air volume adjusting plates 10 are held in a position perpendicular to the cooling air 6 as shown in FIG.

風量調整穴１０ｂは、このときの冷却風６が風量調整板１０を通過する圧力損失と電子ユニット３を通過するときの圧力損失が等価になるようにあけておく。また、風量調整は風量調整板の穴加工ではなく枚数で風量調整することも可能である。   The air volume adjusting hole 10b is opened so that the pressure loss when the cooling air 6 at this time passes through the air volume adjusting plate 10 and the pressure loss when passing through the electronic unit 3 are equivalent. In addition, the air volume can be adjusted by the number of sheets instead of drilling holes in the air volume adjusting plate.

さらに電子ユニット３を搭載する挿入口には、電子ユニットを抜き出したあとに冷却風６が漏れ出さないように風漏れ防止構造４が備わっており、シェルフ２の電子ユニットを冷却するための冷却風７として損失することなく送り込むことが可能となっている。   Further, the insertion opening for mounting the electronic unit 3 is provided with a wind leakage prevention structure 4 so that the cooling air 6 does not leak after the electronic unit is extracted, and cooling air for cooling the electronic unit of the shelf 2 is provided. 7 can be sent without loss.

すなわち、本実施例において、電子ユニット３の搭載エリアにおける搭載中と取り外し後の圧力バランスが等しく保持されることによって、他の電子ユニットの冷却風量が変化するのを防ぎ、しいては電子ユニットの異常発熱や温度変化を防止することが可能となる。   That is, in the present embodiment, the pressure balance during and after the mounting in the mounting area of the electronic unit 3 is kept equal to prevent the cooling air volume of the other electronic units from changing, Abnormal heat generation and temperature change can be prevented.

本発明の実施例を示す斜視図である。It is a perspective view which shows the Example of this invention. 風量調整機構の構造を示す斜視図である。It is a perspective view which shows the structure of an air volume adjustment mechanism. 風量調整機構の構造を示す斜視図である。It is a perspective view which shows the structure of an air volume adjustment mechanism. 風量調整機構の構造を示す断面図である。It is sectional drawing which shows the structure of an air volume adjustment mechanism.

符号の説明Explanation of symbols

１ シェルフ
２ シェルフ
３ 電子ユニット
４ 風漏れ防止構造
５ 風量調整機構
５ａ ストッパー
６ 冷却風
７ 冷却風
１０風量調整板
１０ａ 制御レバー
１０ｂ 風量調整穴
１０ｃ 浮翼
１０ｄ 回転軸
DESCRIPTION OF SYMBOLS 1 Shelf 2 Shelf 3 Electronic unit 4 Air leak prevention structure 5 Air flow adjustment mechanism 5a Stopper 6 Cooling air 7 Cooling air 10 Air flow adjustment plate 10a Control lever 10b Air flow adjustment hole 10c Floating blade 10d Rotating shaft

Claims (6)

複数の電子ユニットを並列に収納したシェルフが単一の筐体内に複数段収納され、ファンによって前記電子ユニット内の電子部品を冷却するための冷却風が送風されていて、冷却風の上流側の電子ユニットを通過した冷却風が下流側の電子ユニットも冷却している電子装置において、前記上流側の電子ユニットの挿抜に連動しながら冷却風の風圧を利用して回動する風量調整板を、前記上流側の電子ユニットに冷却風を送風する通風口に設けたことを特徴とする風量調整構造。 Shelf accommodating a plurality of electronic units in parallel a plurality of stages housed within a single housing, though the cooling air is blown to cool the electronic components in the electronic unit by the fan, the upstream side of the cooling air In the electronic apparatus in which the cooling air that has passed through the electronic unit is also cooling the downstream electronic unit, an air volume adjusting plate that rotates using the wind pressure of the cooling air while interlocking with the insertion and removal of the upstream electronic unit, An air flow rate adjusting structure provided at a ventilation port for blowing cooling air to the electronic unit on the upstream side. 前記上流側の電子ユニットが搭載されているときには前記風量調整板は冷却風に対して平行に保持され、前記上流側の電子ユニットが引き抜かれるに従って前記風量調整板が回動を始め、前記上流側の電子ユニットが引き抜かれているときには前記風量調整板は冷却風に対して垂直に保持されることを特徴とする請求項１記載の風量調整構造。 When the upstream electronic unit is mounted, the air volume adjusting plate is held in parallel with the cooling air, and as the upstream electronic unit is pulled out, the air volume adjusting plate starts rotating, and the upstream side 2. The air volume adjusting structure according to claim 1, wherein the air volume adjusting plate is held perpendicular to the cooling air when the electronic unit is pulled out. 前記風量調整板には、冷却風を通過させる風量調整穴と、回動するための軸を中心に電子ユニットを挿抜するときに電子ユニットの端面に接触するための突設されたレバー部と、風量調整板面に対して平行に流れる冷却風の風圧を使って回動力を発生させるために風を誘い込むための浮翼とが形成されていることを特徴とする請求項２記載の風量調整構造。   The air volume adjusting plate has an air volume adjusting hole for allowing cooling air to pass through, and a protruding lever portion for contacting an end surface of the electronic unit when the electronic unit is inserted and removed around a rotating shaft, 3. The air volume adjusting structure according to claim 2, wherein a floating blade for drawing wind is formed in order to generate rotational force using the wind pressure of the cooling air flowing parallel to the air volume adjusting plate surface. . 前記風量調整板は、電子ユニットを抜き出すことで前記浮翼に加えられている冷却風の風圧により回動し、冷却風の風向に対して垂直になる角度でストッパーによって回動が停止して冷却風の抵抗板となることを特徴とする請求項３記載の風量調整構造。 The air volume adjusting plate is rotated by the wind pressure of the cooling air applied to the floating blade by extracting the electronic unit, and the rotation is stopped by the stopper at an angle perpendicular to the air direction of the cooling air to cool it. 4. The air volume adjusting structure according to claim 3, wherein the air volume adjusting structure is a wind resistance plate. 前記風量調整穴は、電子ユニットが引き抜かれているときに冷却風が前記風量調整板を通過する圧力損失と電子ユニットが搭載されているときに冷却風が電子ユニットを通過するときの圧力損失が等価なるように明けられること特徴とする請求項３記載の風量調整構造。 The air volume adjustment holes, the pressure loss when the cooling air passes through the electronic unit when the pressure loss and an electronic unit for cooling air passing through the air volume adjusting plate is mounted when the electronic unit has been carefully pulling 4. The air volume adjusting structure according to claim 3, wherein the air volume adjusting structure is defined to be equivalent. 複数の電子ユニットを並列に収納したシェルフが単一の筐体内に複数段収納され、ファンによって前記電子ユニット内の電子部品を冷却するための冷却風が送風されていて、冷却風の上流側の電子ユニットを通過した冷却風が下流側の電子ユニットも冷却している電子装置において、前記上流側の電子ユニットに冷却風を送風する通風口に前記上流側の電子ユニットの挿抜に連動しながら冷却風の風圧を利用して回動する風量調整板を設けると共に、前記上流側電子ユニットを搭載する挿入口に風漏れ防止板を設けることを特徴とする電子装置。 Shelf accommodating a plurality of electronic units in parallel a plurality of stages housed within a single housing, though the cooling air is blown to cool the electronic components in the electronic unit by the fan, the upstream side of the cooling air In the electronic apparatus in which the cooling air that has passed through the electronic unit also cools the downstream electronic unit, cooling is performed in conjunction with the insertion / extraction of the upstream electronic unit to the ventilation port that blows the cooling air to the upstream electronic unit. An electronic apparatus comprising: an air volume adjusting plate that rotates using wind pressure of a wind; and an air leak preventing plate provided at an insertion port on which the upstream electronic unit is mounted.
JP2005258669A 2005-09-07 2005-09-07 Air flow adjustment structure Expired - Fee Related JP4561545B2 (en)

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JP5399835B2 (en) * 2009-09-16 2014-01-29 エヌイーシーコンピュータテクノ株式会社 Air-cooled device and method for preventing air leakage of air-cooled device
WO2011135715A1 (en) 2010-04-30 2011-11-03 富士通株式会社 Housing, substrate module, and air-cooling structure
JP5609426B2 (en) * 2010-08-25 2014-10-22 富士通株式会社 Blower
JP5472008B2 (en) 2010-09-24 2014-04-16 富士通株式会社 Electronic unit mounting device and air flow control device
JP2013235995A (en) * 2012-05-10 2013-11-21 Nec Network & Sensor Systems Ltd Electronic apparatus

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JPH024000A (en) * 1988-06-20 1990-01-09 Nec Corp Cooling mechanism for electronic device
JPH02174197A (en) * 1988-12-26 1990-07-05 Fujitsu Ltd Cooling structure for electronic device
JPH0541588A (en) * 1991-08-06 1993-02-19 Fujitsu Ltd Printed board mounting structure
JPH05299861A (en) * 1992-04-21 1993-11-12 Fujitsu Ltd Hermetically sealing structure for board containing shelf
JPH08255989A (en) * 1995-03-16 1996-10-01 Fujitsu Ltd Enclosure of electronic apparatus
JPH1187949A (en) * 1997-09-16 1999-03-30 Oki Electric Ind Co Ltd Package and its mounting unit
JP2005191348A (en) * 2003-12-26 2005-07-14 Hitachi Ltd Structure for preventing wind leakage of electronic apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH024000A (en) * 1988-06-20 1990-01-09 Nec Corp Cooling mechanism for electronic device
JPH02174197A (en) * 1988-12-26 1990-07-05 Fujitsu Ltd Cooling structure for electronic device
JPH0541588A (en) * 1991-08-06 1993-02-19 Fujitsu Ltd Printed board mounting structure
JPH05299861A (en) * 1992-04-21 1993-11-12 Fujitsu Ltd Hermetically sealing structure for board containing shelf
JPH08255989A (en) * 1995-03-16 1996-10-01 Fujitsu Ltd Enclosure of electronic apparatus
JPH1187949A (en) * 1997-09-16 1999-03-30 Oki Electric Ind Co Ltd Package and its mounting unit
JP2005191348A (en) * 2003-12-26 2005-07-14 Hitachi Ltd Structure for preventing wind leakage of electronic apparatus

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