JP2005229126A - Electronic device accomodating rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device accommodating rack that is capable of uniformly cooling electronic devices placed by each shelf, is of simple structure, and dispenses with labor for adjustment. <P>SOLUTION: The electronic device accommodating rack 1 has a plurality of shelf plates 19 that are disposed by being spaced out in the upper and lower directions to load the electronic devices 7, has a ventilation port 23 at an upper section thereof, and is provided with a cooling device 5. The device 5 includes ducts 29 that are arranged in the upper and lower directions of the rack 3, a fan 33 that sucks a cold wind and sends the wind to the ducts 29, and a nozzle 31 where an air blow-out outlet 35 disposed by each shelf plate is formed. The nozzle 31 is communicated with the ducts 29, the shelf plates 19 are each provided with a recess 49 that is recessed backwardly and downwardly, the nozzle 31 is accommodated in the recess 49, and the nozzle 31 blows the wind from the forward section to the rear section of the plates 19. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic equipment storage rack provided with a cooling device for cooling electronic equipment such as computer equipment.

  In general, electronic devices (or IT devices) such as servers are housed in a rack and connected to each other in order to connect and use a plurality of electronic devices. In such an electronic device storage rack, when each electronic device is operated, heat may be generated and the inside of the rack may become high temperature. Electronic devices are vulnerable to heat, and if they are operated in a high temperature state, it may cause a failure or a reduction in service life. Therefore, it is necessary to cool the inside of the rack.

  As a cooling method for such an electronic equipment storage rack, for example, in Patent Document 1, a partition is provided at the rear of the rack to form an exhaust passage in the rack, and the inside of the rack is depressurized by an exhaust fan provided at the upper portion of the exhaust passage. Then, cool air (air outside the rack, for example, room air) is introduced into the rack by static pressure, and the cold air exchanges heat with the electronic devices on each shelf, and the heat exchanged air is discharged from the exhaust passage to the outside of the rack. The technology to discharge is disclosed.

  Further, in Patent Document 2, one end of a flexible duct is connected to each shelf plate on which electronic devices are arranged, the other end of the flexible duct is communicated with a duct arranged in the vertical direction, and an exhaust fan provided at the top of the duct is used. A technique is disclosed in which air in the rack is exhausted, and each flexible duct is provided with a throttle that controls the amount of ventilation according to the amount of heat generated by the electronic devices on each shelf. In addition, this publication discloses that a fan is provided for each shelf as a conventional technique. If a fan is provided for each shelf in this manner, the rack becomes large and the cost increases. It is described that there is.

Japanese Patent Laid-Open No. 5-15423 Japanese Utility Model Publication No. 62-201995

  However, in the former prior art described above, air movement in each shelf is attempted by reducing the pressure in the exhaust passage with an exhaust fan. Therefore, depending on the type and size of the electronic device placed on each shelf, etc. When the air resistance in each shelf is different, a shelf with high ventilation and a shelf with low ventilation are generated, and there is a disadvantage that the cooling state of the electronic device differs depending on the shelf and the electronic device is not sufficiently cooled. In particular, shelves on which electronic devices are not placed have almost no airflow resistance, and thus there is a disadvantage that a short suck kit of cooling air in which cool air flows only in such shelves occurs.

  Further, since the exhaust passage is formed in the rack, there is a disadvantage that the structure of the rack becomes complicated.

  On the other hand, the latter technique has the same problems as the technique described above, and a flexible duct communicating with each shelf is provided with a restriction, so that a short circuit of cooling air can be prevented, but a restriction is provided for each shelf. Since adjustment is necessary, there is a problem that the configuration becomes complicated and the adjustment of the aperture for each shelf becomes troublesome.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an electronic device storage rack that can uniformly cool electronic devices placed on each shelf, has a simple configuration, and does not require time and effort for adjustment.

  According to a first aspect of the present invention, an electronic device storage rack having a plurality of shelf plates on which electronic devices are placed with intervals in the vertical direction and having a ventilation opening at the top includes a cooling device, The apparatus includes a duct provided in the vertical direction of the rack, a fan that takes in cool air and blows air to the duct, and a nozzle that is arranged for each shelf plate and has an air outlet, and the nozzle communicates with the duct. The shelf plate includes a recess recessed downward in the rear portion, the nozzle is accommodated in the recess, and the nozzle blows forward from the rear portion of the shelf plate.

  According to a second aspect of the present invention, there is provided an electronic device storage rack having a plurality of shelves on which electronic devices are placed at intervals in the vertical direction and having a ventilation opening at an upper portion thereof, and includes a cooling device. The apparatus includes a duct provided in the vertical direction of the rack, a fan that takes in cool air and blows air to the duct, and a nozzle that is arranged for each shelf plate and has an air outlet, and the nozzle communicates with the duct. The shelf plate includes a nozzle holding portion on the lower surface side, and the nozzle blows air toward the lower side of the held shelf.

  According to a third aspect of the present invention, an electronic equipment storage rack having a plurality of shelves on which electronic equipment is placed at intervals in the vertical direction and having a ventilation opening at the top is provided with a cooling device. The apparatus includes a duct provided in the vertical direction of the rack, a fan that takes in cool air and blows air to the duct, and a nozzle that is arranged for each shelf plate and has an air outlet, and the nozzle communicates with the duct. The shelf plate is formed with vent holes, and the shelf plate is provided with nozzle holding portions on both the left and right sides, the holding portion is provided with a guide groove that can move the position of the nozzle along the front-rear direction. The air is blown from an arbitrary position in the front-rear direction of the plate.

According to the first aspect of the present invention, the nozzle is provided for each shelf, and the cool air is blown from the nozzle for each shelf, so that the electronic device placed on each shelf can be cooled without leakage.
Further, since the ducts and nozzles of the cooling device are arranged in the rack separately from the rack, the rack configuration is not complicated and can be easily mounted on an existing rack.
Since the nozzles provided in each shelf share a fan for supplying cooling air and no fan is provided for each shelf, the number of parts can be reduced, and the rack can be reduced in size and labor can be saved.

  By storing the nozzles in the recesses formed on the shelf plate, the nozzles can be easily installed without providing complicated mounting brackets. Also, in general, electronic devices are often provided with a circuit board on the bottom side or vent holes in the device are formed, and the electronic device is configured by blowing cooling air from the bottom side of the electronic device placed on the shelf board. Cooling air can be blown into the substrate of the device or the electronic device, and the electronic device can be effectively cooled.

According to the second aspect of the present invention, the nozzle is provided for each shelf, and the cool air is blown from the nozzle for each shelf, so that the electronic device placed on each shelf can be cooled without leakage.
Further, since the ducts and nozzles of the cooling device are arranged in the rack separately from the rack, the rack configuration is not complicated and can be easily mounted on an existing rack.
Since the nozzles provided in each shelf share a fan for supplying cooling air and no fan is provided for each shelf, the number of parts can be reduced, and the rack can be reduced in size and labor can be saved.

  Since the shelf plate is configured to hold the nozzles, the nozzle holding portion and the mounting space are not required on the inner surface of the rack, so that the inside of the rack can be made compact and the dead space in the rack can be reduced.

According to invention of Claim 3, since the nozzle is provided for every shelf and cold air is blown from a nozzle for every shelf, the electronic device mounted in each shelf board can be cooled without omission.
Further, since the ducts and nozzles of the cooling device are arranged in the rack separately from the rack, the rack configuration is not complicated and can be easily mounted on an existing rack.
Since the nozzles provided in each shelf share a fan for supplying cooling air and no fan is provided for each shelf, the number of parts can be reduced, and the rack can be reduced in size and labor can be saved.

Since the nozzle is provided so as to be movable along the front-rear direction of the shelf plate, the electronic device is further cooled by adjusting the blowing position for each shelf plate according to the type and size of the electronic device or the mounting position. Can be done effectively.
Since the vent holes are formed in the shelf board, air can be blown through each shelf board, the convection of the cooling air in the entire rack can be activated, and the cooling effect can be enhanced.

  In addition, the ventilation of the cool air from the nozzle may be performed through the vent hole of the shelf board on the bottom surface side of the electronic equipment placed on the shelf board, or the electronic equipment placed on the lower shelf board. The air may be blown from above to be cooled, and the air may be blown in any direction.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, the first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view showing a schematic configuration of an electronic equipment storage rack according to a first embodiment of the present invention, FIG. 2 is a perspective view showing the cooling device shown in FIG. 1, and FIG. It is a longitudinal cross-sectional view which shows the flow of the wind in the electronic device storage rack shown in FIG. In FIG. 1, the door on the front side of the rack and the one side wall adjacent to the door are omitted.

  The electronic device storage rack 1 according to the first embodiment of the present invention includes a rack 3 and a cooling device 5 mounted in the rack 3, and stores and stores a plurality of electronic devices 7. Heat generated from the electronic device 7 is discharged out of the rack 3.

The rack 3 includes a bottom plate 9, a top plate 11, left and right side plates 13 and 15, a back plate 17, and a door (not shown) provided on the front surface. A shelf board 19 is attached. The shelf board 19 is attached to the back board 17 and the support | pillar 21, and each shelf board 19 can be fixed in the arbitrary positions in an up-down direction.
An electronic device 7 is placed on each shelf board 19, and necessary electrical connection is made to each electronic device 7.
In the rack 3, a ventilation port 23 is provided on the upper side of the side plate 15, and in this embodiment, an exhaust fan 25 is attached to the awakening port 23 to promote exhaust in the rack 3.

  The cooling device 5 includes a blower box 27 provided at the bottom of the rack 3, a duct 29, and a nozzle 31 communicating with the duct 29, and the electronic device 7 placed on each shelf board 19. The cool air is directly blown from each nozzle 31.

  A plurality of blower fans 33 are housed in the blower box 27, and cool air (room air) is taken from the indoor floor side where the rack 3 is placed and sent to the duct 29.

  The duct 29 is disposed at a corner of the rack 3 on the side of the back plate 17, and the lower end thereof is communicated with the blower box 27. The duct 29 is disposed in a space normally provided as a ventilation space S on the side portion in the rack 3 and is accommodated in the existing rack 3. The upper end of the duct 29 is sealed by a cap 34, and the cooling air blown from the blower box 27 is blown out from the nozzle 31 branched from the duct. The duct 29 and the nozzle 31 described later are each made of an aluminum alloy stamping shape and are lightweight.

The nozzle 31 has a substantially cylindrical shape and is attached to the duct 29 with the axis line horizontal. The number of nozzles 31 corresponding to the number of shelves is provided, and the nozzles 31 individually blow air toward the electronic devices 7 placed on the respective shelf plates 19.
One end of the nozzle 31 communicates with the duct 29, and the other end away from the duct 29 is sealed. A plurality of blowing holes 35 are formed in a row on the side surface of the nozzle 31, and cool air is blown in the left-right direction in the rack.

  Next, the mounting and operation of the cooling device in the present embodiment will be described. The rack 3 is an existing one and is installed indoors. The cooling device 5 is mounted in the rack 3, and the cooling device 5 is mounted by arranging a blower box 27 connected to the lower end of the duct 29 at the bottom of the rack 3, and a duct together with the nozzles 31 on the back side in the rack 3. 29 is installed. Then, the duct 29 and the nozzle 31 are fixed inside the rack 3. In this way, the cooling device 5 can be easily mounted on the existing rack 3.

  On the other hand, the operation of the cooling device 5 drives the blower fan 33 in the blower box 27. Thereby, the blower box 27 takes in cold air (room air) along the floor and blows cold air from each nozzle 31 through the duct 29. The cold air blown from the nozzle 31 (shown by the broken line in the figure) blows directly to the electronic device 7 placed on the shelf board 19, so that hot air in the atmosphere around the electronic device 7 is blown away or heat-exchanged, The device 7 and its surroundings are cooled.

  The hot air blown off from the periphery of the electronic device 7 or the heat-exchanged air rises in the ventilation space S of the rack 3 together with the blown air and is exhausted from the ventilation port 23 via the exhaust fan 25.

In this embodiment, since the electronic device 7 is individually cooled for each shelf by blowing from the nozzles 31 provided for each shelf, a short suck kit for cooling air and the electronic device 7 that is not blown are not generated. The electronic device 7 accommodated in the rack 3 can be cooled evenly.
Moreover, since air is blown from each nozzle 31 (dynamic pressure is applied) to each electronic device 7, the cooling effect by the cold air is high.

  Hereinafter, other embodiments of the present invention will be described with reference to FIGS. 4 to 11. In the following description, the same reference numerals are given to the portions having the same operational effects as the first embodiment described above. Therefore, the detailed description of the portion is omitted, and points different from the first embodiment will be mainly described.

4 and 5 show a second embodiment of the present invention. In the second embodiment, the nozzle 31 is provided on one side surface of the duct 29 so as to be slidable up and down, and the vertical position of the nozzle 31 can be changed.
That is, the nozzle 31 is provided with an engaging portion 39 for engagement with the duct 29, and the duct is provided with a guide rail 41 for guiding the engaging portion 39 in a vertical direction so as to be slidable. Further, a flexible hose 43 communicating with the duct 29 is connected to the nozzle 31 so as to receive cool air from the duct 29.

Moreover, in 2nd Embodiment, while the blowing hole 35 of the nozzle 31 is formed in groove shape along the longitudinal direction of the side surface of the nozzle 31, the nozzle 31 is provided rotatably in the circumferential direction. In addition, it is possible to adjust the blowing direction of the cold air from the outlet 35.
In the second embodiment, when the types and sizes of the electronic devices 7 placed on the respective shelf plates 19 are different, the height of each shelf plate 19 is changed or the heat generation location of each electronic device 7 is changed. Thus, the blowing position and blowing direction of the nozzle 31 can be individually set, and the electronic device 7 can be efficiently cooled.

  In the third embodiment shown in FIGS. 6 and 7, in the second embodiment described above, each flexible hose 43 is directly connected to the blower opening 45 of the blower fan 33, and the flexible hose 43 is housed in the duct 29. And it is not visible from the outside. That is, in the third embodiment, unlike the second embodiment described above, the blower fan 33 directly blows air to the flexible hose 43 without blowing air to the duct 29. The duct 29 is provided with a cover 30 in which a flexible hose extraction hole is formed so that the duct 29 can be opened and closed. When the cover 30 is closed, the flexible hose 30 housed in the duct 29 can be seen from the outside. I am trying not to.

  According to the third embodiment, since each flexible hose 43 is directly connected to the blower opening 45 of the blower fan, when the electronic device 7 is not placed on the predetermined shelf 19, the flexible hose 43 is provided on the shelf. The flexible hose 43 is not connected to the nozzle 31 and the remaining blower opening 45 is plugged 47 so that only the necessary flexible hose 43 can be blown efficiently.

FIG. 8 shows a fourth embodiment. In the fourth embodiment, the shelf 19 of the rack 3 is formed with a recessed portion 49 that is recessed downward on the back surface side, and the nozzle 31 is disposed in the recessed portion 49. A mounting portion 50 on which the rear end of the electronic device 7 is placed is formed on the upper portion of the concave portion 49, and the concave portion 49 has a substantially U shape.
Holding portions 51 of the nozzle 31 are provided on both sides of the concave portion 49, and the nozzle 31 is housed in the U-shaped concave portion 49 and both ends thereof are fixed to the holding portion 51. Other configurations are substantially the same as those of the third embodiment described above.

  According to the fourth embodiment, the electronic device 7 placed on the shelf plate 19 blows cool air toward the bottom surface and from the rear to the front, so that the lower surface side of the electronic device 7 can be mainly cooled. Therefore, the electronic device 7 having a heat generating part such as a circuit board on the bottom has a high cooling effect.

  FIG. 9 shows a modification of the fourth embodiment. A holding portion 53 of the nozzle 31 is also provided on the lower surface of the front surface side of the shelf plate 19, and the rear surface side and front surface of the rack 3 are provided on the shelf plate 19. The nozzles 31 are arranged at two locations on the side, and air is blown not only from the lower side of the electronic device 7 placed on the lower shelf plate 19 but also from the upper side. It is intended to cool at the same time. In this modified example, the nozzle holding portion 53 is provided on the lower surface of the front side of the shelf board 19, but the nozzles 31 are not limited to be provided on the front side of all the shelf boards 19, and may be provided as necessary. Good.

  10 and 11 show a fifth embodiment. In the third embodiment, a number of ventilation holes 55 are formed on the placement surface of the shelf board 19 and the left and right sides of the shelf board 19 are shown. Nozzle holding portions 56 are provided on both sides, and a guide groove 57 for the nozzle 31 is formed in the nozzle holding portion 56. The guide groove 57 is a long slot that is long in the front-rear direction. When both ends of the nozzle 31 are locked in the guide groove 57, the position of the nozzle 31 can be adjusted by moving the nozzle 31 in the front-rear direction in both Tokyo. .

According to the fifth embodiment, the nozzles 31 are placed on the shelf according to the type (the heat generation position is different) and the size of the electronic device 7 placed on the shelf 19 or the placement position on the shelf 19. The electronic device 7 can be cooled more effectively by moving along the front-rear direction of the plate 19 and adjusting the position.
In addition, since the position of the blowout hole 35 is rotatable, the nozzle 31 may be blown out with the blowout hole 35 facing upward, and the bottom surface side of the electronic device 7 may be performed through the vent hole 55 of the shelf plate 19. The electronic device placed on the lower shelf plate 19 may be blown from above with the blowing hole 35 of the nozzle 31 facing down, and cooling may be performed. It is. Furthermore, as shown in FIG. 11, a plurality of nozzles 31 may be provided on one shelf plate 19.
Further, by forming the vent hole 55 in each shelf plate 19, air is easily convected in the rack 3, and the cooling effect in the entire rack can be enhanced.

12 and 13 show a sixth embodiment. In this embodiment, the duct 29 also serves as a pillar constituting the frame 61 of the rack 3. The duct 29 has a hollow 63 as shown in a cross section in FIG. 13, and air is blown from the blower fan 33 into the hollow 63, and the nozzle 31 is attached to the mounting port 65 provided in the duct 29, 31 is blown. The attachment ports 65 are provided at predetermined intervals along the vertical direction of the duct 29, and are plugged with caps 67 at locations where the nozzles 31 are not attached. A top plate 11, left and right side plates 13 and 15, a back plate 19, and a door 20 are attached to the outside of the frame 61 of the rack 3.
In the duct 29, a guide rail 69 that engages with the shelf plate 19 and guides the shelf plate is provided on the surface adjacent to the mounting opening 65, and the engagement piece 70 provided on the shelf plate 19 is provided as a guide rail. 69 is movably engaged, and the shelf 19 is fixed at an arbitrary position.

According to the sixth embodiment, since the duct 29 also serves as a pillar of the frame 61, the configuration of the frame 61 can be simplified.
FIG. 14 shows a modification of the above-described sixth embodiment. As in the second embodiment of FIG. 5, the guide rail 41 of the nozzle 31 is provided, and the nozzle 31 is moved up and down along the duct 29. It is movable.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the present invention.
For example, in the first to fourth embodiments, the shelf plate 19 may be formed with the vent holes 55 as in the fifth embodiment.
The ventilation fan 25 may not be provided, and only the ventilation port 23 may be formed. Further, the ventilation port 23 and the ventilation fan 25 may be provided on the back plate 17 or the top plate 11.
The vent hole 55 formed in the shelf board 19 is not limited to forming a hole in the board, and may be a mesh.

It is a perspective view which shows schematic structure in the electronic device storage rack concerning 1st Embodiment of this invention. It is a perspective view which extracts and shows the cooling device shown in FIG. It is a longitudinal cross-sectional view which shows the flow of the wind in the electronic device storage rack shown in FIG. It is a perspective view which shows schematic structure in the electronic device storage rack concerning 2nd Embodiment. It is a perspective view which shows the connection part of the duct and nozzle shown in FIG. It is a perspective view which shows the connection part of the duct concerning 3rd Embodiment, and a nozzle. It is a perspective view which shows the connection part of the fan and flexible hose in 3rd Embodiment, and the inside of a duct. It is a perspective view which shows schematic structure in the electronic device storage rack concerning 4th Embodiment. It is a perspective view which shows the modification of 4th Embodiment and shows the relationship between a shelf board and a nozzle. It is a perspective view which shows schematic structure in the electronic device storage rack concerning 5th Embodiment. It is the perspective view which looked at the shelf board shown in FIG. 10 from the lower side. It is a perspective view which shows schematic structure in the electronic device storage rack concerning 6th Embodiment. It is a disassembled perspective view which cut | disconnects and shows F part shown in FIG. It is a modification of 6th Embodiment and is a disassembled perspective view which shows the part corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic equipment storage rack 3 Rack 5 Cooling device 7 Electronic equipment 19 Shelf board 23 Ventilation port 29 Duct 31 Nozzle 33 Blower fan 35 Outlet 39 Engagement part 41 Guide rail 43 Flexible hose 49 Recessed part 51 Nozzle holding part 55 Ventilation hole 57 Guide groove

Claims (3)

  An electronic equipment storage rack having a plurality of shelves arranged at intervals in the vertical direction and on which electronic devices are placed and having a ventilation opening at the top includes a cooling device, and the cooling device is provided in the vertical direction of the rack. A duct that takes in cool air and blows it into the duct, and a nozzle that is arranged for each shelf board and that has an air outlet formed therein. An electronic equipment storage rack comprising: a recess recessed in the housing, wherein the nozzle is housed in the recess, and the nozzle blows forward from the rear portion of the shelf board.   An electronic equipment storage rack having a plurality of shelves arranged at intervals in the vertical direction and on which electronic devices are placed and having a ventilation opening at the top includes a cooling device, and the cooling device is provided in the vertical direction of the rack. Duct, a fan that takes in cool air and blows it into the duct, and a nozzle that is arranged for each shelf plate and has an air outlet, the nozzle is connected to the duct, and the shelf plate is a nozzle on the lower surface side An electronic device storage rack, characterized in that the nozzle blows toward the lower side of the shelf where the nozzle is held. An electronic equipment storage rack having a plurality of shelves arranged at intervals in the vertical direction and on which electronic devices are placed and having a ventilation opening at the top includes a cooling device, and the cooling device is provided in the vertical direction of the rack. A duct that takes in cool air and blows it into the duct, and a nozzle that is arranged for each shelf plate and that has an air outlet, and the nozzle communicates with the duct, and the shelf plate has a vent hole. The shelf plate is formed with nozzle holding portions on both the left and right sides, the holding portion is provided with a guide groove that can move the position of the nozzle along the front-rear direction, and the nozzle is from an arbitrary position in the front-rear direction of the shelf plate. Electronic equipment storage rack characterized by blowing air.

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