JP2012164243A - Falling prevention structure and falling prevention method for server rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a server rack from falling from the rack of the end of the column of the server rack.SOLUTION: Disclosed is the falling prevention structure and falling prevention method of a server rack, which being configured such that a rack column consisting of rack groups 30 to 50 and a rack column consisting of rack groups 60 to 80 are arranged with the front faces of rack casings faced to each other with intervals, and that the top faces of the arbitrary rack casings of the rack groups 30 and 60 and the rack groups 50 and 80 faced to each other at the both ends are respectively connected by using vibration isolating dampers 90 and 92 having vibration isolating functions, and that the top faces of the arbitrary rack casings of the rack groups 40 and 70 faced to each other in the center are connected by using a vibration isolating damper 91 having the vibration isolating function. Thus, it is possible to prevent the server rack from falling from the rack side of the end of the column due to resonance even when the mass of the server rack is increased as a whole.

Description

  The present invention relates to a server rack toppling prevention structure and a toppling prevention method that are installed in a large number of computer data centers, and in particular, server racks that are arranged in two rows with the front surfaces of rack casings connecting a plurality of rack groups facing each other. This invention relates to a fall prevention structure and a fall prevention method.

  In general, in data centers where computer systems are installed, in order to efficiently cool electronic equipment such as servers housed in a vertical box-shaped server rack, the front of the server rack row of cabinets is placed on a seismically isolated free access floor. Installed facing each other, the front side of the server rack is set as a cold aisle that collects cool air exhausted from the air conditioner, and the back side of the server rack is set as a hot aisle that collects exhaust heat from the server. By configuring the electronic equipment housed in the rack to draw cool air from the cold aisle on the front side of the server rack and exhaust the warm air to the hot aisle on the back side, the cooling efficiency in the data center is improved and air conditioning is performed. The power consumption of the machine is reduced, and the server rack is prevented from falling.

  In addition, as a document in which the technology related to the vibration control of the structure is described, for example, the following Patent Document 1 is cited, and in this Patent Document 1, a substructure arranged in parallel with the main structure to be controlled is included. A technique is described in which the main structure and the substructure are connected to each other by a connecting damping element and a connecting spring element having a vibration damping function while being arranged on the seismic isolation floor.

JP 2010-203192 A

  The above-mentioned technology for preventing the server rack from falling in a general server room installs a server rack row on a seismic isolation floor, which connects a number of server racks. There was a problem that the server rack row might fall when an earthquake exceeding the performance occurred. Moreover, although the technique described in the said patent document 1 connects the building installed alone with a connection damping element and a connection spring element, although the seismic isolation with respect to a building can improve, a server rack is Individual weight varies depending on the equipment configuration to be installed, and the center of gravity tends to be higher because electronic equipment is installed from the upper side in the rack to facilitate the operation of maintenance personnel etc. for the electronic equipment to be installed. The vibration of the server rack row having a long and narrow installation surface in which the racks are connected in a row has a problem that it may fall from the rack side at the end of the row due to resonance.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems of the prior art, and a server rack overturn prevention structure and overturn prevention capable of preventing a server rack row in which a number of server racks having different weights are connected. Is to provide a method.

  In order to achieve the above-mentioned object, the present invention prevents the server rack from tipping over, comprising at least three rack groups in which a plurality of rack groups in which a plurality of racks of vertical box-like housings on which a plurality of arbitrary electronic devices are mounted are connected. It is a structure, and the rack housing front surfaces of the rack row are arranged so as to face each other with a gap, and the upper surfaces of arbitrary rack housings in the opposite-end rack groups are connected by using a vibration damping damper having a vibration absorbing function. In addition, the first feature is to connect the upper surfaces of arbitrary rack casings in the rack group facing each other using a vibration damping damper having a vibration absorbing function.

  Further, the present invention is a method for preventing a server rack from toppling comprising two rows of rack rows in which a plurality of rack groups in which a plurality of racks of vertically long box-shaped housings on which a plurality of electronic devices are mounted are connected, and wherein at least three rack groups are connected. A step of arranging the front surfaces of the racks in the rack row so as to face each other with a gap, and a step of connecting the upper surfaces of arbitrary rack cases in the opposite-end rack groups using a vibration damping damper having a vibration absorbing function; The second feature is that a step of connecting the upper surfaces of arbitrary rack casings in the group of racks facing each other at the center using a vibration damping damper having a vibration absorbing function is performed.

  The server rack toppling prevention structure and the toppling prevention method according to the present invention are arranged such that the front surfaces of the rack cases in the rack row face each other with a gap, and a vibration absorbing function is provided between the upper surfaces of arbitrary rack cases in the opposite end rack groups. And connecting the upper surfaces of arbitrary rack housings in the rack groups facing each other using a vibration damping damper having a vibration absorbing function, so that the server rack row as a whole is connected. Even when the mass is increased, vibrations can be buffered by using the weight of the other party between the opposing rack groups, and it can be prevented from falling from the rack side at the end of the row due to resonance.

The figure which shows the fall prevention structure of the server rack by embodiment of this invention. The figure which shows the weight distribution example of the server rack to which embodiment of this invention is applied. The figure which shows the weight distribution example of the server rack to which embodiment of this invention is applied. The figure which shows the weight distribution example of the server rack to which embodiment of this invention is applied.

  Hereinafter, an embodiment of a server rack overturn prevention structure and overturn prevention method according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating a plan view when a large number of racks are arranged in two rows in a server room 10 of a computer to which the server rack toppling prevention structure according to the present embodiment is applied, and the rack to which the present embodiment is applied. Is a computer that constitutes a computer system, a storage that is a recording medium such as a magnetic disk device, a firewall for preventing intrusion from the outside, a UPS that is an uninterruptible power supply, various switches, and many other electronic devices Is a vertically long box-shaped housing that can be mounted arbitrarily according to the system configuration requested by the customer, and is connected in a row with an arbitrary number of electronic devices mounted, making the mounted electronic devices more efficient For good cooling, install the server rack row with the front of the server rack facing the seismic isolation free access floor. A cold aisle is a space that collects the cool air discharged from the air conditioner, and the rear side of the server rack is set as a hot aisle that is a space that collects exhaust heat from the server. The electronic equipment housed in the server rack is the server rack. Cold air is drawn in from the cold aisle on the front side, and warm air is discharged to the hot aisle on the back side.

  The server rack overturn prevention structure according to the present embodiment includes a first rack group 30 composed of a plurality of racks 31 to 35 and a second rack group 40 composed of a plurality of racks 41 to 45, as shown on the left side of FIG. The third rack group 50 composed of a plurality of racks 50 to 53 is connected in a row to form a left rack array, and as shown on the right side of the drawing, a fourth rack group 60 composed of a plurality of racks 61 to 65 and a plurality of racks The fifth rack group 70 composed of the racks 71 to 75 and the sixth rack group 80 composed of the plurality of racks 80 to 84 are connected in a row to form a right rack row, and these rack rows face the front of the chassis. The server rack front side is set as a cold aisle and the server rack back side is set as a hot aisle.

  The electronic devices mounted on the plurality of racks 31 to 36, racks 41 to 45, and racks 51 to 53 in the left rack row are as shown in FIG. 2A, FIG. 3A, and FIG. Depending on the configuration of the electronic device to be mounted, the respective weights are 100.7 kg, 202.2 kg, 181.1 kg, 222.1 kg, 220.0 kg, 283.3 kg, 94.7 kg, 126.0 kg, 170. 3Kg, 103.7Kg, 178.3Kg, 259.7Kg, 316.7Kg, 274.0Kg, etc., and the individual weights are greatly different, and a plurality of racks 61 to 65, racks 71 to 75, rack 81 in the right rack row. Also in the electronic devices mounted on -84, as shown in FIG. 2B, FIG. 3B, and FIG. Kg, 201.9 kg, 29.0 kg, 137.9 kg, 113.1 kg, 113.0 kg, 77.3 g, 60.4 kg, 151.3 kg, 128.9 kg, 305.6 kg, 214.1 kg, 76.9 kg, The individual weights are usually very different, such as 185.5 kg.

  As shown in FIG. 1, the server rack toppling prevention structure according to the present embodiment has a vibration absorbing function between the upper surface of the casing 31 of the rack 31 at the end of the rack group 30 and the upper surface of the casing of the rack 61 at the end of the rack group 60. The anti-vibration damper 90 is connected by fixtures 90a and 90b, and similarly, has a vibration absorbing function between the upper surface of the rack 53 of the rack group 50 and the upper surface of the rack 84 of the rack group 80 at the lower end of the drawing. An anti-vibration damper 92 is connected by fixtures 92a and 92b, and an anti-vibration damper having a vibration absorbing function is provided between the upper surface of the rack 42 of the rack group 40 and the upper surface of the rack 73 of the rack group 70 in the center of the drawing. 91 is configured to be connected by fixtures 91a and 91b.

  The distance L1 between the mounting positions of the vibration damping damper 90 and the vibration damping damper 91 and the distance L2 between the mounting positions of the vibration damping damper 91 and the vibration damping damper 92 are the weights of the mounted electronic devices between the two distances. It is desirable to set positions that are substantially equal.

  The mounting position of the anti-vibration damper 90 is not limited to the position where the racks at the rack group 30 end and the rack group 60 end are connected to each other, but the side near the end of the rack group 30 and the rack group 60 on the end side. The racks at arbitrary positions may be connected according to the mounting weight, and the racks at arbitrary positions near the ends of the rack group 50 and the rack group 80 may be connected to the mounting weight on the opposite side. You may comprise so that it may connect according to it.

  The server rack toppling prevention structure and method according to the present embodiment configured as described above includes a rack row composed of a plurality of three or more groups of racks arranged on the free access floor of the seismic isolation structure so that the front surface of the housing faces each other. In this case, the upper surface of any rack in the rack group facing each other is connected by using the vibration isolating dampers 90 to 92 having a vibration absorbing function to absorb the vibration, so that an earthquake or the like occurs and the server rack has a seismic isolation structure free access. When vibrating on the floor, the top surface of the opposite rack group, which is the minimum unit of concatenation, is connected using anti-vibration dampers, so even if the mass of the server rack row as a whole increases, they face each other The vibration between the rack groups can be buffered by using the weight of the other party, and it is prevented from falling from the rack side at the end of the row due to resonance. Can.

  Further, in the present fall prevention structure and method, the distance L1 between the mounting positions of the vibration damping damper 90 and the vibration damping damper 91 and the distance L2 between the mounting positions of the vibration damping damper 91 and the vibration damping damper 92 are set between the two distances. By setting the positions so that the weights of the mounted electronic devices are almost equal, the vibration characteristics due to the weights of the left and right racks with the central vibration damping damper 91 as a boundary can be balanced on the left and right sides. Can be prevented from falling from the rack side.

10 server rooms, 21 doors,
30, 40, 50, 60, 70, 80 rack group, 31-36 racks,
41-45 racks, 51-53 racks, 61-65 racks,
71-75 rack, 81-84 rack, 90-92 anti-vibration damper

Claims (2)

A server rack overturning prevention structure comprising two rows of rack rows in which a plurality of rack groups in which a plurality of racks of vertically long box-shaped housings on which a plurality of arbitrary electronic devices are mounted are connected,
The rack rows in the rack row are arranged so that the front sides of the racks face each other with a gap, and the upper surfaces of arbitrary rack cases in the opposite-end rack groups are connected using a vibration damping damper having a vibration absorbing function, A structure for preventing a server rack from toppling, characterized in that upper surfaces of arbitrary rack casings in a group of facing racks are connected by using a vibration damping damper having a vibration absorbing function. A method for preventing a server rack from toppling comprising two rows of racks in which at least three groups of racks in which a plurality of racks of vertically long box-type housings on which a plurality of arbitrary electronic devices are mounted are connected are connected,
A step of arranging the front surfaces of the racks in the rack row so as to face each other with a gap, and a step of connecting the upper surfaces of arbitrary rack cases in the opposite-end rack groups using a vibration damping damper having a vibration absorbing function; And a step of connecting the upper surfaces of arbitrary rack casings in a group of racks facing each other at the center using a vibration damping damper having a vibration absorbing function.

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