JP2008159747A - Electronic device housing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device housing apparatus for cooling an electronic device therein by efficiently blowing cold air by which the electronic device can be cooled very efficiently and its necessary parts can be appropriately cooled. <P>SOLUTION: The electronic device housing apparatus circulates cold air from a cold air supply fan 50 in a passage for exhausting heat through a housing position of the electronic device and discharges warm air to the outside by an exhaust fan facing the passage for exhausting heat. In this case, a cold air exhaust fan 40 is provided above an air control duct 200 for producing rising cool air current in the air control duct 200. On the other hand, cold air guiding flaps 8, which guide a part of the cold air in the direction of the electronic device, are arranged in a detachable/attachable manner in the air control duct and with their mounting height changeable depending on the electronic device. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to an electronic device storage device that cools an electronic device in a storage device by efficiently blowing cool air into the storage device.

Conventionally, as this type of storage device, a cooling air passage is formed between the front door of the electronic equipment storage rack and the electronic equipment stored in the rack, and air is blown from the cooling passage to the rear surface of the rack by the blower of the fan. Some devices cool electronic devices by sending (For example, see Patent Document 1)

In Patent Document 1, since the cold air supply port is formed at the lower end of the front surface of the rack, the supplied cold air is concentrated in the lower part of the rack close to the supply port, so that the electronic equipment stored in the rack is closer to the lower part. It will be cooled, and the phenomenon that the cooling capacity is taken closer to the cold air outlet will occur.
Furthermore, when the number of servers stored in the rack is small, a problem called a short circuit phenomenon also occurs.
For example, when electronic equipment is stored in the lower part of the rack and the upper part of the rack is empty, the cool air cools the lower electronic equipment and moves to the rear of the rack. It may move and be exhausted with cold air. Since the exhaust temperature at this time is naturally low, the sensor that detects the exhaust temperature erroneously determines that the inside of the rack has been sufficiently cooled, and may stop the cooling operation.

On the other hand, rack-mounted servers (blade servers) housed in racks are mounted at mount angles in the rack and are stacked in a vertical stack so that they are not obstructed by adjacent servers in the vertical direction. It is necessary to cool a semiconductor device such as a power source and a CPU. For this reason, in the current mount type server, an air intake port is provided on the front of the server, a fan installed in the server is used to forcibly cool the power supply periphery and semiconductor devices, and an exhaust port provided on the back of the server. It is structured to exhaust the exhaust heat after cooling.
As described above, the rack mount type server (blade server) is provided with a cooling means for cooling in a state of being mounted in the rack.
However, on the server rack side, a means for cooling the server by cooling the entire inside of the rack has been adopted. Also in the said patent document 1, cold air is ventilated so that the whole inside of a rack may be cooled so that it may go from the front surface of a rack to a rear surface.
However, locations where the server needs to be cooled are limited to the periphery of the power supply inside the server and the semiconductor device, and the other portions are relatively excellent in heat resistance. Therefore, it can be said that the conventional method of sending cool air to the entire inside of the rack and cooling the entire server is an extremely wasteful cooling means.

Moreover, the cool air that cools the portions that do not need to be cooled is not only completely wasted, but also has the disadvantage of raising the effective cool air temperature after changing to warm air.
That is, the cooling means described in Patent Document 1 is provided so that the cool air that has cooled the entire server from the front surface of the rack becomes warm air, circulates to the rear surface of the rack, and is then discharged from the upper end of the rack or the like. Therefore, if the warm air is not sufficiently discharged out of the rack, the warm air is circulated to the front surface again to warm the cold air.
In addition, the heat of the warm air that is not discharged can be trapped in the upper part of the rack and affect the server installed at the position.

JP 2004-39675 A

In view of the conventional problems, it is an object of the present invention to provide an electronic device storage device that can cool an electronic device extremely efficiently and accurately cool a necessary part.

Therefore, in order to solve the above problems, the present invention is configured as a first means in which an air control duct through which cold air passes on one side of an electronic device housed in a plurality of stages in the vertical direction is provided in the vertical direction. A heat exhaust passage is provided in the vertical direction on the side, and the cool air from the cool air supply fan that supplies the cool air provided below the air control duct is circulated to the exhaust heat passage through the storage position of the electronic device to exhaust heat. In an electronic equipment storage device that exhausts warm air to the outside by an exhaust fan facing the passage, a cool air exhaust fan is installed above the air control duct to generate a rising air flow of cool air in the air control duct, while in the electronic equipment direction A cool air induction flap that guides a part of the cool air to the air control duct is detachable in the air control duct. It is those that can be provided.

Next, when the present invention is configured as the second means, in addition to the configuration as the first means, the cold air induction flap includes the first flap protruding in the direction of the stored electronic device, and the electric device side. The second flap protrudes from the first flap toward the first flap, a cold air passage gap is formed between the first flap tip and the second flap tip, and the second flap is positioned above the first flap. However, it is inclined downward in the first flap direction.

Next, when the present invention is configured as the third means, in addition to the configuration as the second means, the cool air passage gap has a larger horizontal dimension as it corresponds to the electronic device housed in the lower part. It is set to be.

According to the first aspect of the present invention, the cool air supply fan for supplying the cool air provided below the air control duct is provided, and the cool air exhaust fan is provided above the air control duct, thereby increasing the cool air in the air control duct. By generating an air flow, cold air does not stay near the cold air supply port, it can be reliably guided to the top, and a cold air induction flap that guides a part of the cold air toward the electronic device is provided in the air control duct. Corresponding to each electronic device, it can be detachably installed in the air control duct, and the mounting height can be changed, so that the cold air can be transferred to the electronic device more reliably by providing the cold air induction flap only at the necessary place. Can blow.

The cold air induction flap includes a first flap that protrudes in the direction of the stored electronic device, and a second flap that protrudes in the direction of the first flap from the electric device side, and the tip of the first flap and the second flap A cold air passage gap is formed between the tip portions, and the second flap is located above the first flap and is inclined in the first flap direction. Therefore, a part of the rising cold air is temporarily retained by the first flap. The accumulated cool air induces other updrafts to the second flap side, and the second flap feeds the cool air into the stored electronic device (the air intake of the rack mount server). The rack mount type server) can be cooled, and the cool air can be sent upward without any trouble by the cool air passage gap.

The cool air passage gap is set so that the dimension in the horizontal direction becomes larger as it corresponds to the electronic device housed in the lower part, so the air volume of the cool air blown to the electronic device side is kept constant in the vertical direction. And a stable cooling effect can be obtained.

In the present invention, an air control duct through which cold air passes on one side of an electronic device housed in a plurality of stages in the vertical direction is provided in the vertical direction, a heat exhaust passage is provided in the vertical direction on the other side, and the air control duct is provided below the air control duct. Electronic equipment housing that cool air from the cool air supply fan that supplies the cool air that has been installed is circulated to the exhaust heat passage through the storage position of the electronic equipment, and the warm air is discharged to the outside by the exhaust fan facing the exhaust heat passage In the equipment, a cool air exhaust fan is installed above the air control duct to generate a rising air flow of cool air in the air control duct, while a cool air induction flap that guides a part of the cool air toward the electronic equipment is attached to and detached from the air control duct. The mounting height can be changed according to each electronic device, and the cold air induction flap projects in the direction of the stored electronic device. And a second flap protruding from the electric device side in the direction of the first flap, a cold air passage gap is formed between the front end of the first flap and the front end of the second flap, The flap is located above the first flap, is inclined in the first flap direction, and the cool air passage gap is set so that the horizontal dimension is larger as it corresponds to the electronic device housed in the lower part. is there.

Hereinafter, the first embodiment will be described in detail with reference to the accompanying drawings.
1 to 5, reference numeral 100 denotes an electronic device storage device according to the present invention. The basic structure of the electronic device storage device 100 is a rack body 1 and a front door that is provided on the front surface of the rack body 1 so as to be openable and closable. 2, a rear door 3 provided on the rear surface of the rack body 1 so as to be openable and closable, a top plate part 4 provided on the upper surface, a bottom frame part 5 connected to the lower part of the rack body 1, and the rack body 1. The left and right side panels 60 and 6 are provided on the left and right side surfaces.

The rack body 1 is a vertically long rectangular frame formed by connecting upper and lower front and rear vertical frames 11 and 11 with upper and lower front and rear frames 12 and 12 erected with a predetermined interval in the left-right direction. The left and right frame bodies 10, 10, the upper and lower front and rear frames 13, which connect the four corners of the left and right frame bodies 10, 10 in the left-right direction, and the inner surface side between the left and right frame bodies 10, 10, Rail members 14... Arranged in the front-rear direction at the upper and lower ends of the left and right frame bodies 10 and 10 and the middle portion in the vertical direction, and facing the inner surface side of the rail members 14. The mount angle 15... Is connected in the vertical direction from the front and rear end portions.
Further, on the inner surface side of each rail member 14, a plurality of connecting screws for connecting the mount angles 15... To connect to the depth dimensions of the various servers S attached to the mount angles 15. A number of holes are formed at predetermined intervals in the front-rear direction, and on the front side of each mount angle 15, there are connecting holes 150... (Shown in FIGS. 14 and 15) for connecting the server S. In order to be able to correspond to the height dimensions of various servers S, a large number are formed with a predetermined interval in the vertical direction.

The front door 2 is connected to the front end portion of the right frame 10 via a trillion (not shown) so as to be opened and closed.
Further, a large number of ventilation holes 21 are formed in the lower central portion, and are positioned on the left and right sides of the back surface of the ventilation holes 21... And the ventilation holes 21. Blocking plate support members 23, 23 formed with grooves 22, 22 are connected, and left and right end portions are fitted in the left and right support grooves 22, 22 in the vertical direction and are vertically slidable in a vertical cross section. The closing plate 24 is held by the closing plate support members 23 and 23.
That is, the ventilation holes 21 can be opened and closed by attaching or removing the closing plate 24 corresponding to the amount of cold air supplied.

In addition, the first flap mounting seats 25, 25 having a predetermined interval in the left-right direction and slightly projecting rearward are attached to the rear surface side of the front door 2 over the vertical direction using the door reinforcing member, The first flap mounting seats 25, 25 have a number of flap connection holes (not shown) with a predetermined interval in the vertical direction, like the connection holes 150... Formed in each mount angle 15. Z.) is formed.
Reference numeral 26 denotes a handle for opening and closing the front door 2, and reference numeral 27 denotes a lock of the front door 2.

The rear door 3 is connected to the rear end portion of the left frame 10 via a trillion (not shown) so as to be opened and closed.
Three rear exhaust fans 30 are attached to the rear door 3 at the center in the left-right direction and at a predetermined interval in the vertical direction, and have a predetermined width on the left and right sides of the rear exhaust fans 30. The exhaust auxiliary parts 32, 32 are provided in the vertical direction. The exhaust auxiliary part 32 is constituted by so-called punching metal having a large number of small holes.
A heat exhaust passage 300 through which warm air passes in the vertical direction is formed between the inner surface of the rear door 3 and the rear end portion inner surfaces of the left and right side panels 60 and 6.
In addition, the code | symbol 33 shows the handle for opening and closing the rear door 3, the code | symbol 34 shows the lock | rock of the rear door 3, and the code | symbol 35 has shown the reinforcing material.

Since the left and right panels 60 and 6 are configured symmetrically, only the right panel 6 will be described.
The right panel 6 includes a front closing plate 61 and a side closing panel 62.
The front blocking plate 61 includes a front surface portion 64 provided with locking members 63, 63 protruding forward with a predetermined gap from the rear surface of the front end portion, and a rear end portion of the front surface portion 64. The L-shaped connecting piece 65 that protrudes toward the rack main body 1 and is connected to the front portion of the rail member 14, and the shielding piece 66 that protrudes inward from the rear end of the connecting piece 65.
Then, the rear surface of the front end and the locking members 63, 63 are locked to the front vertical frame 11, and the inner side of the shielding piece 66 is connected to the front of the rail member 14 and the connecting piece 65. The end portion abuts against the mount angle 15 via a sealing material, thereby partitioning the front vertical frame 11 and the front mount angle 15.
That is, the left and right front blocking plates 61, 601 are located on the front door 2, the server S mounted on the mount angle 15..., Between the upper and lower servers S, S and on the front side of the portion where the server S is not mounted. A cylindrical air control duct 200 continuous in the vertical direction is formed by a closing plate 600 (shown in FIG. 6) attached between the left and right mount angles 15.

The side closing panel 62 has locking protrusions 621 and 621 (shown in FIG. 15) that protrude downward and are formed at predetermined positions in the front and rear of the lower end surface. .) And the upper end portion is locked to the locking seat 121 provided on the upper front and rear frame 12, so that the space between the front closing plate 61 and the rear vertical frame 11 and the space between the upper and lower front and rear frames 12 and 12 are closed. Mounted.
Reference numeral 622 indicates a lock provided corresponding to the locking seat 121 of the upper front and rear frame 12, and reference numerals 623 and 623 indicate handles for lifting the side closing panel 62.
In the present embodiment, the right side panel 6 is composed of two members, a front side closing panel 61 and a side side closing panel 62, but a member having the function of the front side closing panel 61 is integrated with the back surface of the front end portion of the side side closing panel 62. It is also possible to configure as a single member by forming them into one.

The top plate portion 4 is provided with a sub-top plate 41 detachably at the center portion, the center portion can be opened as necessary, and a cold air exhaust fan 40 is provided on the front side located above the air control duct 200,
A warm air exhaust fan 400 is provided on the rear side located above the exhaust heat passage 300.

The bottom frame portion 5 is a flat box shape with an opening at the bottom, and adjusters and casters (not shown) are arranged at four corners, and a plurality of seatable sub-bottom plates 51. A cold air supply fan 50 is provided on the front side located below the air control duct 200, and a cold air supply opening 500 is provided on the rear side located below the exhaust heat passage 300.
When the electronic device storage device 100 is installed so that the outlet of the underfloor air conditioning is positioned inside the bottom frame portion 5, the cold air blown from the outlet of the underfloor air conditioning is placed in the air control duct 200 by the cold air supply fan 50. However, since the cool air exhaust fan 40 is provided above the air control duct 200, the cool air becomes an ascending airflow, but it is not blown out of the electronic device storage device as it is and goes around in the direction of the electronic device. In the air control duct 200, cool air induction flaps 8 are formed.

The cold air induction flaps 8 are provided corresponding to the height positions of the electronic devices housed in the vertical direction (three in the embodiment of the present invention), and are attached to the back side of the front door 2. It comprises a flap 81 and a second flap 82 which is mounted slightly above the first flap 81 using the connecting holes 150... Of the front mounting angles 15.
The first flap 81 includes a connecting downward projecting piece 811 detachably connected to first flap mounting seats 25, 25 provided on the back side of the front door 2 by a connecting screw, and a connecting downward projecting piece 811. It is composed of a shielding protrusion 812 that protrudes integrally from the upper end in the direction of the electronic device and prevents some of the cool air from rising.

And the height with the best cooling efficiency is selected and attached to the back surface of the front door 2 according to the height of the electronic device to be stored and the mounting height of the second flap.
In the embodiment, the shielding projecting piece 812 protrudes in the horizontal direction, but in order to correspond very closely to the type of server S to be stored, the blowout amount of the underfloor air conditioning, the mounting height, etc., it is inclined downward. By preparing a plurality of types such as those having different projecting dimensions, those having excellent cooling efficiency are selected in cooperation with the second flap 82, and further efficiency is achieved.
Moreover, since it is attached to the back surface of the front door 2, the attachment / detachment can be easily performed only by opening the front door 2.

The second flap 82 is located between the servers S and S housed in the electronic device housing apparatus 100 and above the uppermost server S, and is attached and detached between the front left and right mount angles 15 and 15 with connecting screws or the like. Left and right flap connection seats 821 and 821, which are detachably connected to the front surfaces of the left and right end portions of the flap attachment rod 820. 821 is arranged at the left and right end portions, and is composed of an inclined projecting piece 822 that inclines downward and projects in the direction of the first flap 81.
The left and right flap connecting seats 821 and 821 are formed with long connecting holes 823 and 823 that are long in the vertical direction, and the second flap 82 is provided with a flap mounting rod 820.・ Attached to.
That is, the second flap 82 is attached to the flap attachment rod 820... With the highest cooling efficiency corresponding to the height of the electronic device to be accommodated and the attachment height of the first flap. It is done.

In the embodiment, the inclined projecting piece 822 is inclined downward in the first flap direction, but it corresponds to the type of the server S to be stored, the blowout amount of the underfloor air conditioning, the mounting height, etc. By preparing a plurality of types such as those in the horizontal direction and those having different projecting dimensions, those having excellent cooling efficiency are selected in cooperation with the first flap 81, and further efficiency is achieved.
If the front door 2 is opened, the mounting height can be easily changed.
And the cold air induction | guidance | derivation flap 8 is the same as the number of the servers S (electronic equipment) installed in the up-down direction of the mount angle 15 ..., and the 1st flap 81 and 2nd of the shape according to the height to which it is attached. The flap 82 is selected and provided in the air control duct 200, but at least the horizontal dimension L of the cold air passage gap 800 formed between the front end portion of the first flap 81 and the front end portion of the second flap 82 ( (Shown in FIG. 18) is set so as to increase as it corresponds to the server S (electronic device) housed in the lower part.
In the embodiment, the projecting dimension of the first flap 81 in the server S (electronic equipment) direction is set to be smaller in the lower stage so that the horizontal dimension L of the cool air passage gap 800 is larger in the lower part. The projecting dimension of the first flap 81 may be the same, and the projecting dimension of the second flap 82 may be set larger as the upper level, and can be changed as appropriate.

The present invention is configured as described above, and as shown in FIG. 9, the cold air blown from the outlet of the underfloor air conditioner is sent into the air control duct 200 by the cold air supply fan 50, and the first lowermost stage A part of the cool air once stays by the flap 81, and the staying cool air guides another rising cool air stream to the second flap side, and the sub-server S (blade server air intake) accommodated by the second flap The cool air that is fed into the cool air and the cool air that rises through the cool air passage gap 800 are separated, and the raised cool air is repeated by the first flap 81 in the middle stage, and a part of the remaining cool air is repeated. Is discharged from the cool air exhaust fan 40 to the outside of the electronic device housing apparatus 100, and most of the cool air is uniformly sent into the server S without being affected in the vertical direction.
The cool air sent into the server bar S passes through the server S by the fans 80... Installed in the server S, becomes warm air, and is blown to the rear door 3 side. .. Are discharged out of the electronic device storage device 100 by the warm air exhaust fan 400.
Accordingly, the left and right front blocking plates 61, 601 and the blocking plates 600 (shown in FIG. 6) mounted between the upper and lower servers S, S and between the left and right mount angles 15, 15 at the front side where the server S is not mounted. ), Etc., the warm air does not flow back into the air control duct 200 again.

Front view of the present invention Rear view of the present invention Right side view of the present invention Plan view of the present invention Bottom view of the present invention Fig. 1 is an enlarged cross-sectional view of the main part AA of Fig. 1 Fig. 3 is an enlarged cross-sectional view of the main part of line BB in Fig. 3. Fig. 3 is an enlarged cross-sectional view of the main part of line CC Explanatory drawing which shows the flow of the cool air of this invention D section enlarged view of FIG. E section enlarged view of FIG. F part enlarged view of FIG. G section enlarged view of FIG. H part enlarged view of FIG. Enlarged view of part J in FIG. M section enlarged view of FIG. N part enlarged view of FIG. Part P enlarged view of FIG. Q section enlarged view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rack main body 10 Frame 100 Electronic device storage apparatus 2 Front door 200 Air control duct 3 Rear door 30 Rear exhaust fan 300 Exhaust heat passage 4 Top plate part 40 Cold exhaust fan 400 Warm air exhaust fan 5 Bottom frame part 50 Cold air supply fan 6
Right side panel 60 Left side panel 8 Cold air induction flap 81 First flap 82 Second flap 800 Cold air passage gap

Claims (3)

An air control duct through which cool air passes on one side of an electronic device stored in multiple stages in the vertical direction is provided in the vertical direction, a heat exhaust passage is provided in the vertical direction on the other side, and the cold air provided below the air control duct is provided. In an electronic device storage device in which cold air from a supplied cool air supply fan is circulated to a heat exhaust passage through a storage position of the electronic device, and warm air is exhausted to the outside by an exhaust fan facing the heat exhaust passage. A cool air exhaust fan is installed above the control duct to generate a rising air flow of cool air in the air control duct, while a cool air induction flap that guides a part of the cool air toward the electronic equipment is detachable in the air control duct. An electronic device storage device, wherein the mounting height can be changed corresponding to the electronic device. The cold air induction flap includes a first flap that protrudes in the direction of the stored electronic device, and a second flap that protrudes in the direction of the first flap from the electric device side, and the tip of the first flap and the second flap 2. The electronic device storage according to claim 1, wherein a cold air passage gap is formed between the front end portions, the second flap is positioned above the first flap, and is inclined downward in the first flap direction. apparatus. 3. The electronic device storage device according to claim 2, wherein the cool air passage gap is set such that the dimension corresponding to the electronic device stored in the lower portion becomes larger in the horizontal direction.