JP2010203415A - Straightening grating for fan box for cooling electronic equipment - Google Patents

Straightening grating for fan box for cooling electronic equipment Download PDF

Info

Publication number
JP2010203415A
JP2010203415A JP2009052815A JP2009052815A JP2010203415A JP 2010203415 A JP2010203415 A JP 2010203415A JP 2009052815 A JP2009052815 A JP 2009052815A JP 2009052815 A JP2009052815 A JP 2009052815A JP 2010203415 A JP2010203415 A JP 2010203415A
Authority
JP
Japan
Prior art keywords
fan box
fan
rectifying
straightening
grid
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
JP2009052815A
Other languages
Japanese (ja)
Inventor
Keishi Arimoto
佳史 有本
Shigetada Sato
重匡 佐藤
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2009052815A priority Critical patent/JP2010203415A/en
Publication of JP2010203415A publication Critical patent/JP2010203415A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a straightening grating for a fan box capable of improving cooling performance of the fan box, by straightening wind flowing in the fan box, since straightening of the wind flowing on the wall surface side that becomes the highest speed in the wind in the fan box is not sufficient, though a technology for mounting the straightening grating between a fan and a fan is known as a technology for improving performance of the fan box, by mounting a plurality of fans in series in the fan box. <P>SOLUTION: In this straightening grating for the fan box for cooling electronic equipment, and in the fan box for cooling the electronic equipment for mounting at least two axial fans in series, a plurality of straightening plates are arranged on a fan box wall surface between at least the two axial fans, and the plurality of straightening plates are vertically arranged to the wall surface of the fan box, and the length of the respective straightening plates is up to a boss part of the axial fan from the wall surface, and the respective straightening plates are independently arrange without contacting with each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は電子機器を冷却するファンボックス内部において、複数のファンを直列に搭載する場合に、ファンとファンの間に設置するファンボックス用整流格子に関する。   The present invention relates to a rectifying grid for a fan box installed between fans when a plurality of fans are mounted in series inside a fan box for cooling an electronic device.

近年のLSIは高性能化に伴い発熱量の増加が著しい。電子機器に搭載されるLSIの冷却には軸流ファンを使用するが、機器内の通路抵抗が大きい場合に風量を増やすために2台以上の軸流ファンをファンボックス内に直列に搭載して風量の増加を図るケースが増えている。この際、上流側に搭載されるファンによって発生した旋回流の成分が下流側に搭載されるファンの回転方向と同一であることから、下流側ファンの相対的な回転速度が小さくなるため、ファンボックスの冷却性能は低下する。   In recent years, the amount of heat generation has increased remarkably with higher performance. An axial fan is used to cool the LSI mounted on the electronic device. If the passage resistance in the device is large, two or more axial fans are mounted in series in the fan box to increase the air flow. Increasing cases of increasing airflow. At this time, since the component of the swirling flow generated by the fan mounted on the upstream side is the same as the rotation direction of the fan mounted on the downstream side, the relative rotational speed of the downstream fan is reduced, so that the fan The cooling performance of the box is reduced.

上記課題の解決策として、ファンとファンの間に整流板を内包した格子を設置する。整流板とはファンボックス内の風の進行方向に対して平行な平板を指し、この整流板をファンボックスの壁面に沿った格子枠に当てはめたものを整流格子という。整流格子は風上のファンからの旋回流成分の動圧を静圧に変えることにより静圧を増大させる。また、下流側ファンは上流側から流れてくる風の旋回流成分が整流格子により減少されているので、下流側ファンの性能低下を防止し、ファンボックスの性能向上を図ることができる。   As a solution to the above problem, a grid including a current plate is installed between the fans. The rectifying plate is a flat plate parallel to the direction of the wind in the fan box, and the rectifying plate is applied to the lattice frame along the wall of the fan box. The rectifying grid increases the static pressure by changing the dynamic pressure of the swirling flow component from the windward fan to the static pressure. In addition, since the swirl component of the wind flowing from the upstream side of the downstream fan is reduced by the rectifying grid, it is possible to prevent the performance of the downstream fan from being lowered and to improve the performance of the fan box.

特開2007-263004JP2007-263004

ファンボックス内に複数のファンを直列に搭載し、ファンボックスの性能向上を図る技術として、ファンとファンの間に整流格子を搭載する技術が知られている。また、ファンボックス内を流れる風が最も高速となるのは壁面側である。このような状況において、ファンボックス内の壁面側を流れる風の旋回流成分を整流する事が可能な整流格子をファンとファンの間に搭載し、下流側ファンの相対回転速度の低下を防止する。   As a technique for improving the performance of a fan box by mounting a plurality of fans in series in a fan box, a technique for mounting a rectifying grid between fans is known. Moreover, it is on the wall surface side that the wind flowing in the fan box becomes the fastest. In such a situation, a rectifying grid capable of rectifying the swirling flow component of the wind flowing on the wall surface in the fan box is mounted between the fans to prevent a decrease in the relative rotational speed of the downstream fans. .

本発明による整流格子は、少なくとも2台の軸流ファンを直列に搭載する電子機器冷却用のファンボックスにおいて、前記少なくとも2台の軸流ファンの間のファンボックス壁面に対して複数の整流板が設置されることを特徴とする。
さらに、本発明による整流格子は、前記複数の整流板がファンボックスの壁面に対して垂直に設置されることを特徴とする。さらに、本発明による整流格子は、各整流板の長さは壁面から軸流ファンのボス部までであり、各整流板は相互に接触しないで独立に設置されることを特徴とする。
The rectifying grid according to the present invention is a fan box for electronic equipment cooling in which at least two axial fans are mounted in series, and a plurality of rectifying plates are provided on a wall surface of the fan box between the at least two axial fans. It is installed.
Furthermore, the rectifying grid according to the present invention is characterized in that the plurality of rectifying plates are installed perpendicular to the wall surface of the fan box. Furthermore, in the rectifying grid according to the present invention, the length of each rectifying plate is from the wall surface to the boss portion of the axial fan, and the rectifying plates are installed independently without contacting each other.

本発明のファンボックス用整流格子を直列に搭載されるファンとファンの間に搭載することにより、上流側に搭載されるファンの旋回流成分の動圧が静圧に変えられることにより静圧が増大し、下流側のファンは整流格子を通じて受け取る風の旋回流成分が減少するため、下流側のファンの性能低下を防止することができる。   By mounting the rectifier grid for the fan box of the present invention between the fans mounted in series, the dynamic pressure of the swirling flow component of the fan mounted on the upstream side is changed to the static pressure, so that the static pressure is reduced. Since the swirl flow component of the wind received through the rectifying grid is reduced and the downstream fan is reduced, the performance of the downstream fan can be prevented from being deteriorated.

また、整流板の長さが壁面から軸流ファンのボス部までであり、整流板同士が交差せず、接触もしないため、整流板そのものがファンボックス内を流れる風の抵抗になる事を防止している。以上より、電子機器に搭載されるLSI等の発熱体の冷却に大きな効果がある。   In addition, the length of the current plate extends from the wall surface to the boss part of the axial fan, and the current plates do not cross each other and do not come into contact with each other, preventing the current plate itself from becoming the resistance of wind flowing in the fan box is doing. From the above, there is a great effect in cooling a heating element such as an LSI mounted on an electronic device.

本発明の効果を示す風量-静圧特性のグラフである。It is a graph of the air volume-static pressure characteristic which shows the effect of this invention. 本発明のファンボックス用整流格子の実施例を示した図である。It is the figure which showed the Example of the rectifier grid for fan boxes of this invention. 図2のファンボックス用整流格子をファンボックスへ実装した図である。It is the figure which mounted the rectifier grid for fan boxes of FIG. 2 in the fan box. 本発明の円筒形状のファンボックス用整流格子およびファンボックスへ実装した図である。It is the figure mounted in the rectifying grid for cylindrical fan boxes of this invention, and a fan box. 本発明の六角柱状のファンボックス用整流格子およびファンボックスへ実装した図である。It is the figure mounted in the rectifier grid for fan boxes of the present invention, and a fan box.

ファンボックス内のファンとファンの間に搭載される整流格子において、ファンと整流格子の間に隙間ができないように搭載されていることが望ましい。   In the rectifying grid mounted between the fans in the fan box, it is desirable that the rectifying grid is mounted so that there is no gap between the fan and the rectifying grid.

本発明のファンボックス用整流格子の実施例を図2に示す。
本発明による整流格子はファンボックス壁面に対して整流板1を垂直に設置しており、各整流板の搭載間隔はファンボックス壁面から中心部に至るまで均一である。また、整流板の長さは壁面から軸流ファンのボス部までであり、整流板同士が交差せず、接触もしない形状である。
An embodiment of a rectifying grid for a fan box according to the present invention is shown in FIG.
In the rectifying grid according to the present invention, the rectifying plate 1 is installed perpendicularly to the wall surface of the fan box, and the mounting interval of each rectifying plate is uniform from the wall surface of the fan box to the center. The length of the rectifying plate is from the wall surface to the boss portion of the axial fan, and the rectifying plates do not intersect and do not contact each other.

図2のファンボックス用整流格子をファンボックスに搭載した場合のイメージを図3に示す。本発明はファンボックスで直列に搭載されるファンとファンの間に隙間ができないように搭載する。風はファンボックス2に入気3して上流側のファン4によって加速される。加速した風はファンボックス用整流格子5によって整流され、整流格子を通過した風は下流側のファン6によってファンボックス外に排気7される。   FIG. 3 shows an image when the fan box rectifier grid of FIG. 2 is mounted on the fan box. The present invention is mounted so that there is no gap between the fans mounted in series in the fan box. The wind enters the fan box 2 and is accelerated by the upstream fan 4. The accelerated wind is rectified by the fan box rectifier grid 5, and the wind passing through the rectifier grid is exhausted 7 to the outside of the fan box by the downstream fan 6.

本発明の他の実施例として、任意の形状であるファンボックスにファンボックス用整流格子を搭載した例を図4および図5に示す。図4は円筒形のファンボックス8を示しており、搭載ファン9の形状が円筒形であっても、ファンとファンの間にファンボックス用整流格子10を搭載することが可能であることを示している。図5は六角柱形のファンボックス11を示しており、搭載ファン12の形状が六角柱形であっても、ファンとファンの間にファンボックス用整流格子13を搭載することが可能であることを示している。このように、ファンボックス用整流格子は任意の形状のファンボックスに対して搭載が可能である。   As another embodiment of the present invention, an example in which a fan box rectifying grid is mounted on a fan box having an arbitrary shape is shown in FIGS. FIG. 4 shows a cylindrical fan box 8 and shows that the fan box rectifier grid 10 can be mounted between the fans even if the mounted fan 9 has a cylindrical shape. ing. FIG. 5 shows a hexagonal column-shaped fan box 11, and even if the mounted fan 12 has a hexagonal column shape, the fan box rectifying grid 13 can be mounted between the fans. Is shown. In this manner, the fan box rectifier grid can be mounted on a fan box having an arbitrary shape.

なお、ファンボックス内に直列に搭載されるファンは2台以上ならば何台でも良いが、ファンボックス内に搭載されるファンとファンの間にはファンボックス用整流格子を搭載するものとする。   The number of fans mounted in series in the fan box is not limited as long as it is two or more. However, a fan box rectifier grid is mounted between the fans mounted in the fan box.

図1のグラフはファンボックス内にファンを3台搭載した場合の風量-静圧特性を示しており、ファンとファンの間に本発明の整流格子を搭載した場合と、搭載しない場合の風量-静圧特性を比較する事ができる。本発明のファンボックス用整流格子をファンとファンの間に搭載した場合、整流格子を搭載しない場合と比べて静圧が大きい事がわかる。特に、風量が2.0m/minまでの風量域では特に静圧の差が大きくなっており、この風領域がファンボックス用整流格子の静圧低下を防止する効果が最も高い。 The graph in Fig. 1 shows the airflow-static pressure characteristics when three fans are installed in the fan box. The airflow when the rectifying grid of the present invention is installed between the fans and when not installed- Static pressure characteristics can be compared. It can be seen that when the fan box rectifier grid of the present invention is mounted between the fans, the static pressure is larger than when the rectifier grid is not mounted. In particular, the difference in static pressure is particularly large in the air volume range up to 2.0 m 3 / min, and this wind area has the highest effect of preventing the static pressure drop of the fan box rectifying grid.

1.整流板
2.ファンボックス
3.入気
4.上流側のファン
5.ファンボックス用整流格子
6.下流側のファン
7.排気
8.円筒形状のファンボックス
9.円筒形状のファン
10.円筒形状のファンボックス用整流格子
11.六角柱形のファンボックス
12.六角柱状のファン
13.六角柱状のファンボックス用整流格子
1. Current plate 2. 2. Fan box Intake 4. 4. Upstream fan 5. Fan box rectifier grid 6. Downstream fan Exhaust 8. 8. Cylindrical fan box Cylindrical fan 10. 10. Rectifying grid for cylindrical fan box Hexagonal fan box 12. Hexagonal fan 13. Hexagonal fan box rectifier grid

Claims (4)

少なくとも2台の軸流ファンを直列に搭載する電子機器冷却用のファンボックスにおいて、前記少なくとも2台の軸流ファンの間のファンボックス壁面に対して複数の整流板が設置されることを特徴とするファンボックス用整流格子。   In a fan box for cooling an electronic device in which at least two axial fans are mounted in series, a plurality of rectifying plates are installed on a wall surface of the fan box between the at least two axial fans. Rectifier grid for fan box. 前記複数の整流板がファンボックスの壁面に対して垂直に設置されることを特徴とする請求項1記載のファンボックス用整流格子。   The rectifying grid for a fan box according to claim 1, wherein the plurality of rectifying plates are installed perpendicular to the wall surface of the fan box. 各整流板の長さは壁面から軸流ファンのボス部までであり、各整流板は相互に接触しないで独立に設置されることを特徴とする請求項1記載のファンボックス用整流格子。   The rectifying grid for a fan box according to claim 1, wherein the length of each rectifying plate is from the wall surface to the boss portion of the axial flow fan, and the respective rectifying plates are installed independently without contacting each other. 電子機器冷却用ファンボックスの任意の形状に合わせて設置されることを特徴とする請求項1記載のファンボックス用整流格子。   2. The fan box rectifying grid according to claim 1, wherein the fan box rectifying grid is installed in accordance with an arbitrary shape of the electronic device cooling fan box.
JP2009052815A 2009-03-06 2009-03-06 Straightening grating for fan box for cooling electronic equipment Pending JP2010203415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009052815A JP2010203415A (en) 2009-03-06 2009-03-06 Straightening grating for fan box for cooling electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009052815A JP2010203415A (en) 2009-03-06 2009-03-06 Straightening grating for fan box for cooling electronic equipment

Publications (1)

Publication Number Publication Date
JP2010203415A true JP2010203415A (en) 2010-09-16

Family

ID=42965138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009052815A Pending JP2010203415A (en) 2009-03-06 2009-03-06 Straightening grating for fan box for cooling electronic equipment

Country Status (1)

Country Link
JP (1) JP2010203415A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012222131A (en) * 2011-04-08 2012-11-12 Panasonic Corp Cooling device and heating element-housing apparatus using the same
WO2014061060A1 (en) 2012-10-18 2014-04-24 Hitachi, Ltd. Storage apparatus and storage controller of said storage apparatus
JP2018042619A (en) * 2016-09-12 2018-03-22 日本電産コパル電子株式会社 Cpap apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012222131A (en) * 2011-04-08 2012-11-12 Panasonic Corp Cooling device and heating element-housing apparatus using the same
WO2014061060A1 (en) 2012-10-18 2014-04-24 Hitachi, Ltd. Storage apparatus and storage controller of said storage apparatus
CN104603881A (en) * 2012-10-18 2015-05-06 株式会社日立制作所 Storage apparatus and storage controller of said storage apparatus
US9036342B2 (en) 2012-10-18 2015-05-19 Hitachi, Ltd. Storage apparatus and storage controller of storage apparatus
CN104603881B (en) * 2012-10-18 2017-03-08 株式会社日立制作所 Storage device and the storage control of the storage device
JP2018042619A (en) * 2016-09-12 2018-03-22 日本電産コパル電子株式会社 Cpap apparatus
US11207479B2 (en) 2016-09-12 2021-12-28 Nidec Copal Electronics Corporation CPAP device

Similar Documents

Publication Publication Date Title
EP2241830B1 (en) Outdoor unit of air conditioner
TWI463939B (en) Electronic device
JP2007263004A (en) Multiple layout fan
TWI513400B (en) Heat dissipation device
JP2007208116A (en) Air-cooled cooler
JP5567076B2 (en) Radiator
JP2010203415A (en) Straightening grating for fan box for cooling electronic equipment
CN102654790A (en) Heat radiation system
US20160134174A1 (en) Heat dissipation apparatus for motors
US8152472B2 (en) Blade structure for heat sink fans
JP2017069499A (en) heat sink
TW201312328A (en) Heat dissipation device
JP2010165761A (en) Electronic component cooling structure
JP2015008225A (en) Electronic apparatus
JP6474751B2 (en) Cell inverter unit
US20070147992A1 (en) Fan and fan housing thereof
JP5150569B2 (en) POWER CONVERSION DEVICE, POWER CONVERSION UNIT, AND METHOD FOR DESIGNING POWER CONVERSION UNIT
CN104411144B (en) Cooling system
US8508942B2 (en) Electronic device with heat dissipation structure
WO2014097437A1 (en) Indoor unit for air conditioning device
JP2010196945A (en) Outdoor unit
CN201852164U (en) Electromagnetic oven
JP2008281214A (en) Air conditioner
JP2011119395A (en) Cooling structure of electronic component
JP2009230329A (en) Server device