JP6554997B2 - rack - Google Patents

Description

The present invention relates to a rack.

  A rack used in the data center accommodates various electronic devices such as servers and power supply units. In order to distribute power to each of these electronic devices, a power distribution device called a PDU (Power Distribution Unit) is provided in the rack.

  The power distribution device is a kind of power tap and has a function of distributing power supplied from a data center to a plurality of electronic devices.

  The number of power distribution devices provided in one rack depends on the power consumption of the electronic device accommodated in the rack and the type of power source. For example, when a plurality of electronic devices with a large amount of power consumption having a plurality of power supply units are accommodated in a rack, or when these electronic devices are added, a plurality of power distribution devices are installed to secure supply power. May be provided.

  In addition, when electronic equipment with a power supply voltage of 100V and electronic equipment with a power supply voltage of 200V are mixed in one rack, or for data centers with two different power supply facilities as a power failure countermeasure, support for multiple systems Even when an electronic device is accommodated, a plurality of power distribution devices may be provided for each power receiving system.

  However, when a plurality of power distribution devices are provided in one rack in this way, the work space is narrowed, and the power distribution device is obstructive, making it difficult to perform maintenance work on electronic devices.

The technology disclosed, which has been made in view of the above, and an object thereof is to provide a Iraq click such to interfere with the maintenance of electronic equipment.

According to one aspect of the following disclosure, a tray that is provided in a side portion of a rack and that can be inserted and removed in a horizontal direction, a power distribution device that is placed on the tray and connected to an input cable and an output cable, and the power The input cable is installed at a position higher than the distribution device, and the pulley that moves in the horizontal direction together with the tray and the power distribution device is higher so that the distance between the input cable and the tray is increased in conjunction with the insertion operation of the tray. A first ring and a second ring provided side by side in the horizontal direction at a position and through which the output cable is passed; a side plate fixed to a side portion of the rack and provided with the second ring; An extension part of the tray extending in the vertical direction, and being slidable in the horizontal direction in conjunction with the tray by being connected to the extension part, and the first phosphorus Rack with and a sliding portion which is provided is provided.

According to the following disclosure, it is possible to provide a Iraq click such to interfere with the maintenance of electronic equipment.

FIG. 1 is a perspective view of a rack used for the study. FIG. 2 is a perspective view of the proposed rack. FIG. 3 is a top view of a data center in which a plurality of racks are installed. FIG. 4 is a perspective view of the rack according to the first embodiment. FIG. 5 is a perspective view of the rack according to the present embodiment with the rear cover and the side cover removed. FIG. 6 is a perspective view of the power distribution unit. FIG. 7 is a side view of the tray and its surroundings. FIG. 8 is a cross-sectional view taken along the line II of FIG. FIGS. 9A and 9B are side views (No. 1) for explaining the movement of each part when the tray is pulled out from the rack. FIGS. 10A and 10B are side views (part 2) for explaining the movement of each part when the tray is pulled out from the rack. FIG. 11 is a side view (No. 3) for explaining the movement of each part when the tray is pulled out from the rack. FIG. 12 is a perspective view of the power distribution unit during maintenance work. FIG. 13 is a perspective view when the tray is put into the rack. FIG. 14 is a perspective view of a rack according to the second embodiment. FIG. 15 is a top view of a rack according to a comparative example.

  Prior to the description of the present embodiment, the results of studies conducted by the inventors will be described.

  FIG. 1 is a perspective view of a rack used for the study.

  A plurality of electronic devices 3 such as servers are accommodated in the rack 1, and a rear cover 2 that can be opened and closed is provided on the back surface 1 a side of the rack 1. A power distribution device 4 is provided in the rack 1 near the rear cover 2.

  The power distribution device 4 receives power supplied from under the floor and distributes it to each electronic device 3 via a plurality of output cables (not shown). In this example, a bar-type power distribution device 4 is erected in a small space S between the rear cover 2 and the electronic device 3.

  Since the power supply inlet of the electronic device 3 is on the back surface 1a side, the power distribution device 4 and the electronic device 3 can be easily connected with a cable by providing the power distribution device 4 on the back surface 1a side in this way. It becomes.

  However, since the space S is narrow, it is difficult to provide a plurality of power distribution devices 4 for each of a plurality of power receiving systems or to provide a plurality of power distribution devices 4 for each of a plurality of power supply units provided as the electronic device 3. .

  FIG. 2 is a perspective view of a rack that has been proposed in order to eliminate such difficulty.

  In FIG. 2, the same elements as those in FIG. 1 are denoted by the same reference numerals as those in FIG.

  In the example of FIG. 2, the bottom surface member 6, the side panel 7, and the ceiling member 8 are provided on the back surface 1 a side of the rack 1, and the rack 1 is extended in the depth direction, thereby providing a space for standing the two power distribution devices 4. Secured.

  According to this structure, although it is possible to provide a plurality of power distribution devices 4, it is difficult to perform maintenance work on the electronic device 3 as follows.

  FIG. 3 is a top view of a data center in which a plurality of racks 1 are installed.

  As shown in FIG. 3, the plurality of racks 1 are installed such that the back surfaces 1 a face each other, and the space between the facing racks 1 is provided as a hot aisle 11 through which an operator passes.

  The width W1 of the hot aisle 11 is narrower than the width W2 when the ceiling member 8 is not provided because the depth of the rack 1 is extended by the ceiling member 8, and the operator performs maintenance with the hot aisle 11. It becomes impossible to secure space.

  Hereinafter, the present embodiment will be described.

(First embodiment)
FIG. 4 is a perspective view of the rack according to the first embodiment.

  As shown in FIG. 4, the rack 20 is a substantially rectangular parallelepiped, and is installed on the floor F of the data center.

  The rack 20 accommodates a plurality of rack-mounted electronic devices 26. The electronic device 26 to be accommodated is not particularly limited, but a server, a power supply unit, and the like can be accommodated in the rack 20 as the electronic device 26.

  The back surface 20a of the rack 20 is directed to a hot aisle where an operator performs maintenance work, and has a rear cover 21 that can be opened and closed. Further, a side cover 22 is provided on the side of the rack 20.

  FIG. 5 is a perspective view of the rack 20 with the rear cover 21 and the side cover 22 removed.

  As shown in FIG. 5, two mount angles 25 are erected on the side of the rack 20, and a plurality of power distribution units 31 are fixed to each mount angle 25.

  The power distribution unit 31 distributes power supplied from under the floor to each electronic device 26, and has a bar-shaped power distribution device 34 that is long in the horizontal direction X.

  Each power distribution device 34 may be provided for each of a plurality of power supply units provided as the electronic device 26, or may be provided for each power receiving system of the electronic device 26.

  The position where the power distribution unit 31 is provided is not particularly limited as long as it is a side part of the rack 20. For example, a frame (not shown) may be provided on the side of the rack 20 and the power distribution unit 31 may be fixed to the frame.

  In the present embodiment, by utilizing the space on the side of the rack 20 in this way, a plurality of power distribution devices 34 are accommodated in the rack 20 without extending the depth of the rack 20 as shown in FIG. Can do. Therefore, a space for an operator to work in hot aisle can be secured, and maintenance work for the electronic device 26 is not hindered.

  In addition, by providing a plurality of power distribution devices 34, each power distribution device 34 can cooperate to ensure sufficient supply power, or to provide a power distribution device 34 for each of a plurality of power receiving systems. Become.

  FIG. 6 is a perspective view of one power distribution unit 31.

  As shown in FIG. 6, the power distribution unit 31 includes a side plate 32 fixed to the mount angle 25 and a tray 33 slidably supported on the side plate 32.

  The tray 33 can be taken in and out in the horizontal direction X, and includes a handle 36 for an operator to hold.

  A power distribution device 34 is placed on the tray 33. The power distribution device 34 has a bar shape that is long in the horizontal direction X, and an input cable 37 and an output cable 38 are connected to each other.

  Among these, the input cable 37 inputs 200V AC power drawn from the floor F (see FIG. 4) to the power distribution device 34 and is connected to the end 34e of the power distribution device 34 from the horizontal direction X. The

  On the other hand, the output cable 38 distributes the electric power of the input cable 37 to each electronic device 26, and is connected from above to any of a plurality of outlets 34b provided on the upper surface 34a of the power distribution device 34. The standard of the outlet 34b is not particularly limited. For example, an outlet 34b compliant with IEC60320-C13 or IEC60320-C19 can be used.

  An extension 33 a extending in the vertical direction Z is fixed to the tray 33. The extension 33 a is movable in the horizontal direction X together with the tray 33 and includes a first pipe 41 and a pulley 42.

  In this example, both the first pipe 41 and the pulley 42 are provided at a position higher than the power distribution device 34.

  The above-described input cable 37 is bent about a half circumference along an arc starting from the power distribution device 34 and is hung on the pulley 42.

  Further, the extension portion 33a is provided with a first fixing portion 51 for fixing the output cable 38. As the first fixing portion 51, for example, a binding band can be used.

  The slide part 45 is connected to the extension part 33a. The slide part 45 is slidable in the horizontal direction X in conjunction with the tray 33 as will be described later, and includes a first ring 47. In this example, the first ring 47 is provided at a position higher than the power distribution device 34 and aligned with the first fixing portion 51 described above in the horizontal direction X.

  A second ring 48 is provided on the side plate 32 next to the first ring 47 so as to be aligned with the first ring 47 in the horizontal direction X.

  The above-described output cable 38 is passed through the rings 47 and 48, whereby the output cable 38 is shaped linearly along the horizontal direction X.

  Further, the side plate 32 is provided with second and third pipes 43 and 44 around which the input cable 37 is wound, and three second fixing portions 52 for fixing the input cable 37 to the side plate 32. . As the second fixing portion 52, for example, a binding band can be used.

  FIG. 7 is a side view of the tray 33 and its surroundings.

  As shown in FIG. 7, each of the slide portion 45 and the side plate 32 is provided with a first long hole 45x and a second long hole 32x extending in the horizontal direction X.

  FIG. 8 is a cross-sectional view taken along the line II of FIG.

  In FIG. 8, the rings 47 and 48 and the first fixing portion 51 are omitted in order to prevent the drawing from being complicated.

  As shown in FIG. 8, the extension 33a is provided with a first protrusion 33y, and the first protrusion 33y is fitted into the first elongated hole 45x. Similarly, the slide portion 45 is provided with a second protrusion 45y, and the second protrusion 45y is fitted into the second elongated hole 32x.

  As described above, the projections 33y and 45y are fitted into the long holes 45x and 32y, so that the sliding direction of the slide portion 45 can be set to the horizontal direction X.

  Next, the movement of each part when the tray 33 is pulled out from the rack 20 will be described.

  9 to 11 are side views for explaining the movement of each part when the tray 33 is pulled out from the rack 20.

  FIG. 9A shows a state in which the tray 33 is inserted into the rack 20.

  In this state, the distance P1 between the first fixing portion 51 and the first ring 47 and the distance P2 between the first ring 47 and the second ring 48 are the widest.

  Next, as shown in FIG. 9B, the operator pulls out the tray 33 from the rack 20. At this time, the projection 33y of the extension portion 33a is freely movable in the horizontal direction X along the first elongated hole 45x. Therefore, the slide part 45 is in the original position without being interlocked with the tray 33.

  When the tray 33 is further pulled out, the extension 33 a comes into contact with the first ring 47 as shown in FIG.

  When the tray 33 is further pulled out in this state, the slide portion 45 starts to slide in the horizontal direction X in conjunction with the extension portion 33a as shown in FIG.

  Thereafter, as shown in FIG. 11, the slide portion 45 further slides in conjunction with the tray 33, and the movement of the tray 33 and the slide portion 45 stops when the slide portion 45 comes into contact with the second ring 48.

  In addition, when inserting the tray 33 into the rack 20, the operation opposite to the above may be performed.

  Next, maintenance work for the rack 20 will be described.

  FIG. 12 is a perspective view of the power distribution unit 31 during maintenance work.

  The work contents in the maintenance work include, for example, adding a server having higher function and higher power consumption than the current electronic device 26 as the electronic device 26, or replacing the electronic device 26.

  At the time of maintenance work, as shown in FIG. 12, the operator holds the handle 36 and pulls the tray 33 from the rack 20 in the horizontal direction X.

  At this time, since the input cable 37 and the output cable 38 remain connected to the power distribution device 34, maintenance work can be performed while maintaining the energized state of the power distribution device 34.

  Further, since the pulley 42 supports the input cable 37 from below, the input cable 37 does not hang down due to its own weight. Therefore, the routing shape of the input cable 37 is not greatly broken, and the tray 33 can be prevented from being caught on the input cable 37.

  In addition, since the output cable 38 is fixed to the extension portion 33 a by the first fixing portion 51, the output cable 38 is also drawn out of the rack 20 in conjunction with the tray 33, and the output cable 38 and the input cable 37 are connected. There is no entanglement.

  Further, since the input cable 37 is fixed to the side plate 32 by the second fixing portion 52, the cable 37 is pulled out from the floor F (see FIG. 4) when the tray 33 is put in and out, or the input cable 37 is disconnected. Nor.

  On the other hand, FIG. 13 is a perspective view when the tray 33 is inserted into the rack 20.

  As shown in FIG. 13, when the tray 33 is inserted into the rack 20, the input cable 37 is lifted up while the pulley 42 rotates. As a result, a space for accommodating the tray 33 is created, so that the tray 33 is prevented from being caught by the input cable 37.

  In particular, since the position where the input cable 37 is fixed by the second fixing portion 52 is made higher than that of the power distribution device 34, the tension and weight of the input cable 37 are reduced under the second fixing portion 52, and the number of workers is small. The tray 33 can be inserted into the rack 20 by force.

  Further, since the distance between the first ring 47 and the second ring 48 is widened, the output cable 38 is linearly shaped along the horizontal direction X by these rings 47 and 48. Similarly, since the distance between the first fixing portion 51 and the first ring 47 is widened, the output cable 38 can be linearly shaped by the first fixing portion 51 and the first ring 47 as well.

  As a result, the output cable 38 can be prevented from hanging down due to its own weight, so that the tray 33 can be prevented from being caught on the output cable 38, and the tray 33 can be smoothly taken in and out.

  According to the present embodiment described above, the power distribution device 34 is placed on the tray 33 that can be put in and out provided on the side of the rack 20. Thereby, the shape of the input cable 37 and the output cable 38 can be shaped by the movement of the tray 33 while maintaining the energized state of the power distribution device 34 without hindering the maintenance work on the back surface 20 a of the rack 20.

(Second Embodiment)
FIG. 14 is a perspective view of a rack according to the present embodiment.

  In FIG. 14, the same elements as those described in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted below.

  As shown in FIG. 14, in this embodiment, a fan 60 is provided on the side of the rack 20.

  The fan 60 generates the wind B from the outside air A, and the power distribution device 34 can be cooled by the wind B.

  In particular, since the exhaust D coming out from the back surface of the electronic device 26 is unlikely to enter the side portion of the rack 20, the power distribution device 34 is effectively prevented by the wind B while preventing the power distribution device 34 from being warmed by the exhaust D. It becomes possible to cool.

  The power distribution device 34 is not particularly limited, but an intelligent PDU may be used as the power distribution device 34. The intelligent PDU has a function of measuring voltage, current, power consumption, and the like in units of outlets and displaying the measurement results. In some cases, the power distribution device 34 has a function of controlling or managing power based on the measurement result.

  An electronic component such as a capacitor for realizing these functions is mounted on the power distribution device 34, but the electronic component can be cooled by supplying the wind B generated by the fan 60 to the power distribution device 34. It is possible to suppress the shortening of the life of the electronic component due to the high temperature environment.

  Next, a comparative example of this embodiment will be described.

  FIG. 15 is a top view of the rack 1 according to the example of FIG.

  As shown in FIG. 15, in this example, the electronic device 3 takes in the outside air C from the front surface, and an electronic component (not shown) in the electronic device 3 is cooled by the outside air C. Then, the exhaust D heated by the electronic device 3 is discharged from the back surface of the electronic device 3.

  At this time, when the power distribution device 4 is provided on the back side of the electronic device 3 as in the example of FIG. 1, the power distribution device 4 is exposed to the exhaust D. According to the principle of 10 ° C. double based on the Arrhenius equation, when the environmental temperature rises by 10 ° C., the useful life of the electronic component is halved.

  For example, a case is assumed where an intelligent PDU having a service life of 5 years under a condition where the environmental temperature is 40 ° C. is used. In this case, when the environmental temperature rises by 10 ° C. to 50 ° C., the service life of the intelligent PDU becomes less than 3 years according to the principle of double 10 ° C., and the power distribution device 4 cannot be used for a long time.

  Therefore, in order to use the power distribution device for a long time, it is preferable to provide the power distribution device 34 on the side of the rack 20 as in the present embodiment.

  The following additional notes are disclosed for each embodiment described above.

(Additional remark 1) The tray which can be put in and out in the horizontal direction provided in the side part of the rack,
A power distribution device mounted on the tray and connected to an input cable and an output cable;
A pulley on which the input cable is bridged at a position higher than the power distribution device and moves horizontally with the tray;
A first ring and a second ring that are provided side by side in a horizontal direction at a position higher than the power distribution device and through which the output cable is passed so that the interval between the trays increases in conjunction with the operation of inserting the tray. Ring,
A rack equipped with a power distribution device characterized by comprising:

  (Additional remark 2) The rack which mounted the electric power distribution apparatus of Additional remark 1 characterized by further providing the fan provided in the said side part and supplying the wind to the said electric power distribution apparatus.

(Supplementary Note 3) A side plate fixed to a side portion of the rack and provided with the second ring;
An extension of the tray extending in the vertical direction;
The supplementary note 1 or the supplementary note 2, further comprising a slide part that is slidable in a horizontal direction in conjunction with the tray by being connected to the extension part, and is provided with the first ring. Rack equipped with a power distribution device.

  (Supplementary note 4) The slide portion is provided with a long hole extending in the horizontal direction, and a protrusion that fits into the long hole is provided in the extension portion, so that the slide portion slides in the horizontal direction. A rack on which the power distribution device according to appendix 3 is mounted.

  (Supplementary Note 5) The power distribution device according to Supplementary Note 3 further including a first fixing portion that fixes the output cable to the extension portion at a position aligned in the horizontal direction with the first ring. rack.

  (Additional remark 6) It has further the 2nd fixing | fixed part which fixes the said input cable to the said side part in a position higher than the said electric power distribution apparatus, The power distribution apparatus in any one of Additional remark 1 thru | or Additional remark 5 characterized by the above-mentioned Rack equipped with.

(Appendix 7) The power distribution device has a bar shape extending in the horizontal direction with a plurality of outlets on the upper surface,
One of the supplementary notes 1 to 6, wherein the input cable is connected to an end of the power distribution device from the horizontal direction, and the output cable is connected to one of the plurality of outlets from above. Rack equipped with the described power distribution device.

DESCRIPTION OF SYMBOLS 1 ... Rack, 1a ... Back surface, 2 ... Rear cover, 3 ... Electronic device, 4 ... Power distribution apparatus, 6 ... Bottom member, 7 ... Side panel, 8 ... Ceiling member, 20 ... Rack, 20a ... Back surface, 21 ... Rear cover, 22 ... Side cover, 25 ... Mount angle, 26 ... Electronic equipment, 31 ... Power distribution part, 32 ... Side plate, 32x ... Second slot, 33 ... Tray, 33a ... Extension part, 34 ... Power distribution device, 34a ... Upper surface, 34b ... Outlet, 34e ... End, 36 ... Handle, 37 ... Input cable, 38 ... Output cable, 41 ... First pipe, 42 ... Pulley, 43 ... Second pipe, 44 ... Third pipe, 45 ... slide part, 45x ... first slot, 47 ... first ring, 48 ... second ring, 51 ... first fixing part, 52 ... second fixing part, 60 ... fan, F ... floor .

Claims (4)

A tray that can be inserted and removed in the horizontal direction provided on the side of the rack;
A power distribution device mounted on the tray and connected to an input cable and an output cable;
A pulley on which the input cable is bridged at a position higher than the power distribution device and moves horizontally with the tray;
A first ring and a second ring that are provided side by side in a horizontal direction at a position higher than the power distribution device and through which the output cable is passed so that the interval between the trays increases in conjunction with the operation of inserting the tray. Ring,
A side plate fixed to a side of the rack and provided with the second ring;
An extension of the tray extending in the vertical direction;
A slide part that is slidable in the horizontal direction in conjunction with the tray by being connected to the extension part, and provided with the first ring;
Features and be Lula click that with. Wherein provided on the side, rack of claim 1, further comprising a fan for supplying air to the power distribution device. Rack according to claim 1 or claim 2, further comprising a first fixing portion for fixing the output cable to the extension portion at a position arranged in the first ring and the horizontal direction. Rack according to any one of claims 1 to 3, further comprising a second fixing portion for fixing the input cable to the side at a position higher than the power distribution device .

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