JP5545675B2 - Ceiling structure of a simple building containing electronic equipment - Google Patents

Description

  The present invention relates to a simple structure for centrally managing electronic devices such as computers in a room, such as a data center in which a large number of servers housed in a rack are centrally installed, and more particularly to a ceiling structure thereof.

  With the development of computer networks represented by the spread of the Internet, the demand for computers such as servers, which are relatively large-sized business-use computers that emphasize reliability, or storage that mainly contains storage devices, is the network service. In recent years, the number of providers has been increasing rapidly. Computers such as servers are housed in a rack, which is a housing for storage, and are often centrally managed in one place. A building that centrally manages servers is called a data center. It is.

  In addition to what is constructed as a normal building, there are container-type data centers (also called modular data centers) that are constructed by modifying containers that are large containers for transportation. The transport container is a solid rectangular solid structure that is surrounded by a strong wall, and it is easy to ensure the security of the data center. It is easy to protect your computer by preventing salt damage (when installed near the coast). Container-type data centers are small buildings compared to ordinary buildings based on transportation containers, so they can be easily expanded and relocated and are suitable for unmanned operation. is there. In order to take advantage of these characteristics of a container-type data center, a large-scale steel structure with a grid structure that combines multiple steel columns and beams and a container as a data center is placed in each section of the grid structure A building is disclosed in Japanese Patent Application Laid-Open No. 2011-18220.

  By the way, in a building such as a data center equipped with a large number of computers, it is necessary to prevent thermal failure caused by the heat generated by the computers and to perform indoor air conditioning. In order to cool the computer or to air-condition the room, an air conditioner that executes the refrigeration cycle may be installed to forcibly cool the computer, but the heat transfer is similar to a heat pipe that uses the phase change of the refrigerant. There is also known a cooling device that prevents a thermal failure of a computer by actively exhausting indoor heat to the outside atmosphere using an accelerating device, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2011-38734. Yes.

The cooling device described in this publication is for cooling information communication devices accommodated in a telephone base station such as a mobile phone (suppressing temperature rise). As shown in FIG. An outdoor heat exchanger LE (low temperature heat exchanger) is installed outdoors, and an indoor heat exchanger HE (high temperature heat exchanger) is installed above the room R where the information communication equipment is installed. Both heat exchangers are connected to each other and a refrigerant is sealed inside, and the refrigerant generated in the indoor heat exchanger HE is boiled by the heat generated from the information communication device and transferred to the outdoor heat exchanger LE. The refrigerant is condensed by discharging heat to the indoor heat exchanger HE by gravity. The indoor air is circulated by the indoor fan CF and is cooled by passing through the indoor heat exchanger HE whose temperature has decreased.
This device based on the outside air cooling is a natural circulation type cooling device that uses convection based on a temperature difference, and does not perform a refrigeration cycle. Therefore, external power or the like is basically unnecessary. Therefore, when this cooling device is employed in a data center, almost no power other than that used by a computer such as a server is required, and power consumption can be greatly reduced.

JP 2011-18220 A JP 2011-38734 A

  In buildings that contain a large number of electronic devices such as computers such as data centers or telephone base stations, it is required to ensure sufficient security of computers and to protect computers from dust and salt damage. In order to meet these requirements, it must be possible to enhance the sealing of the building and block the room from the outside. On the other hand, to prevent thermal damage caused by computer heat, It is necessary to cool the computer securely while discharging it, and in recent data centers, it is required to prevent thermal failure of the computer while suppressing the power for cooling the room as much as possible. In a small facility such as a container-type data center, it is desirable to install a natural circulation type cooling device as described in Patent Document 2 on the roof of the data center. It becomes.

The container type data center is required to be able to easily add or remove the data center building itself in response to an increase or decrease in demand for servers or the like. Although the building disclosed in Patent Document 1 is intended to facilitate the expansion of a container-type data center, etc., it is a very large-scale building based on a steel structure and has an extremely large number of servers. It is not suitable unless it is necessary. In a container-type data center, the data center itself can be stacked and expanded so as to stack marine containers loaded on a ship. In this case, it is desirable to increase the strength of the roof portion.
An object of the present invention is to increase the strength and rigidity of a roof portion in a building such as a data center, to efficiently cool a large number of accommodated computers, or to add or relocate a data center. It is to make it easier.

In view of the above problems, the present invention provides an intermediate ceiling plate below the roof of the building, houses the electronic device in the electronic device storage chamber below the intermediate ceiling plate, and between the roof and the intermediate ceiling plate. Installs an outdoor heat exchanger to dissipate heat to the outside air, and further, a beam material extending in the longitudinal direction of the electronic device housing chamber is provided between the roof and the intermediate ceiling plate, and this is provided at both ends of the electronic device housing chamber. It is fixed to the end wall. That is, the present invention
"It is a rectangular parallelepiped building that houses electronic equipment in a room,
Frame frames having columnar members are arranged at both ends of the building,
An intermediate ceiling plate is provided below the roof of the building, and the electronic device is housed in an electronic device housing chamber formed below the intermediate ceiling plate,
In the electronic device housing chamber, a heat exchanger for cooling indoor air and a fan for circulating the cooled air are installed, and between the roof of the building and the intermediate ceiling plate, An outdoor heat exchanger that exhausts the heat absorbed by the heat exchanger to the outside air is installed.
The electronic device housing chamber has a rectangular shape in plan view, and end walls at both ends in the longitudinal direction are connected to the frame frame,
Between the roof of the building and the intermediate ceiling plate, a beam material extending in the longitudinal direction over the entire length of the electronic device housing chamber is provided, and the beam material is provided at the ends of the both ends of the electronic device housing chamber. While being fixed to the part wall or the frame frame, the roof of the building and the intermediate ceiling plate are attached to the beam material ,
The outdoor heat exchanger is installed between the beam material and one side of the building. "
The building is characterized by that.

As described in claim 2, below the beam material, water that extends in the longitudinal direction over the entire length of the electronic device housing chamber and stays on the upper surface of the intermediate ceiling plate on which the outdoor heat exchanger is installed. the gutter member for draining fixed, it is preferably configured so as to communicate the gutter member to the drain port.

  According to a third aspect of the present invention, the intermediate ceiling plate can be provided below a part of the roof of the building.

  As claimed in claim 4, a plurality of the electronic devices are accommodated in a rack, and a heat exchanger outer box containing the heat exchanger is attached above the rack, and the heat exchanger outer box is mounted It is preferable to fix to the intermediate ceiling plate.

  As described in claim 5, the heat exchanger and the outdoor heat exchanger communicate with each other, and a refrigerant circulating by convection is enclosed therein, so that indoor heat is exhausted from the outdoor heat exchanger. Can be configured.

  7. The fastening bracket according to claim 6, wherein fastening fasteners capable of engaging fasteners are fixed to the upper and lower portions of the columnar member of the frame frame, and the roof of the building is fixed to the upper portion. It is preferable to install it at a lower position.

  In addition, as described in claim 7, an auxiliary facility for the electronic device housing chamber is installed between the end wall of the electronic device housing chamber and the frame frame body connected to the end wall. Can do.

The building of the present invention used as a data center or the like is formed in a rectangular parallelepiped shape as a whole like a transport container, and frame frames having columnar members are arranged at both ends. An intermediate ceiling plate is provided below the roof of the building, and electronic devices are stored in the electronic device storage chamber below the intermediate ceiling plate, and the space above the intermediate ceiling plate is in the electronic device storage chamber. An outdoor heat exchanger that exhausts heat to the outside air is installed. And between the roof of the building and the intermediate ceiling plate, a beam material extending in the longitudinal direction of the electronic device housing chamber is provided over the entire length of the electronic device housing chamber, and the outdoor heat exchanger is Between the beam material and one side of the building, it is installed above the intermediate ceiling plate .

In other words, a beam member extending in the longitudinal direction over the entire length of the ceiling portion of the electronic device housing chamber is provided, and the beam material is an end wall of the electronic device housing chamber connected to the frame frame, or Fixed to the frame body itself. The ceiling part of the electronic device storage room has a double structure with the roof of the building and the intermediate ceiling plate, but the roof of the building and the intermediate ceiling plate on which the outdoor heat exchanger is installed are attached to the beam material respectively. Therefore, the load acting on the ceiling portion is transmitted to the frame body having high strength through the beam material. Therefore, the strength and rigidity of the roof portion of the building are increased, and even a heavy heat exchanger can be reliably supported.
Further, the roof of the building is reinforced by a beam material extending over the entire length of the ceiling portion of the electronic device housing chamber. As a result, the deformation of the roof portion is reduced with respect to the vibration of the earthquake, and the earthquake resistance of the entire building is improved.

  The invention of claim 2 fixes a eaves member (a so-called channel material having walls on both sides so as to form a water channel) below the beam material extending in the longitudinal direction of the electronic device housing chamber, and communicates this eaves member with the drain port. It is comprised so that it may do. An outdoor heat exchanger for exhaust heat is installed between the roof of the building where the beam material is placed and the intermediate ceiling plate, so that outside air is introduced, so rainwater and heat exchangers are placed on the upper surface of the intermediate ceiling plate. Of drainage. Since the beam material extends over the entire length of the electronic device housing chamber, the retained water can be efficiently drained by fixing the eaves member along the lower part thereof. Since the cross-section of the beam material becomes substantially T-shaped by fixing the collar member, it can effectively counter the bending moment or torsional moment acting on the beam material, and the rigidity in the vicinity of the beam material against these moment loads further increases. It will be.

  In the building of the present invention, the intermediate ceiling plate can be installed over the entire lower surface of the roof. However, as in the invention of claim 3, for example, the roof of the building such as a part where an outdoor heat exchanger exists. You may install in the lower part only in a part. In this case, the electronic device accommodation chamber is increased, and the space can be effectively used.

  According to a fourth aspect of the present invention, a plurality of electronic devices are accommodated in a rack, and a heat exchanger outer box containing an indoor heat exchanger is attached above the rack, and the heat exchanger outer box is attached to the intermediate ceiling plate. It is to be fixed to. According to this configuration, the rack in which the electronic device is stored and the cooling device for the electronic device are unitized, and the rack is provided with an independent cooling device. Only the cooling device for the rack in which the electronic device is operating is operated. , Power can be reduced accordingly. In addition, since the upper part of the unitized rack-heat exchanger assembly is fixed to the intermediate ceiling plate, the earthquake resistance of the electronic device housing can be improved.

  In the present invention, in order to cool indoor air containing electronic equipment, a refrigeration cycle using a compressor or the like is executed, and an evaporator (evaporator) of the refrigeration cycle is installed indoors as a heat exchanger. However, the invention of claim 5 is provided with an outdoor heat exchanger placed outside the room in communication with the heat exchanger above the heat exchanger that cools the air in the room, and inside both heat exchangers. A refrigerant circulating by convection is enclosed, and indoor heat is exhausted from the outdoor heat exchanger. According to this, it is possible to cool electronic devices such as computers using natural convection basically without using electric power.

The invention according to claim 6 is a position in which fasteners that can be engaged with fasteners are fixed to the upper and lower parts of the columnar members of the frame body, and the roof of the building is lower than the fasteners fixed to the upper part. It is to be installed in. This is the same configuration as a marine container that is stacked and loaded on a ship, and a fastening fitting fixed to a columnar member is called corner casting.
As a result, it is possible to directly stack and connect buildings, and when adding a building to meet the increasing demand for electronic equipment, simply add another to the existing building. be able to. In particular, in the building of the present invention, the roof portion is reinforced by the beam material, and excessive deformation of the building is prevented even if another is stacked on top.

  According to a seventh aspect of the present invention, an auxiliary facility for the electronic device housing chamber is installed between the end wall of the electronic device housing chamber and the frame frame connected to the end wall. For operation of a data center or the like, ancillary equipment such as a storage for maintenance management supplies and a spare air conditioner is required. According to the invention of claim 7, such ancillary equipment is efficiently arranged in a building. Buildings such as data centers that are compactly unitized, including incidental facilities, can be obtained.

It is a general view which shows one Example of the building of this invention. It is a figure which shows an example of the fastener used for the building of this invention, and a fastener. It is a figure which shows the connected state of the building of this invention. It is a figure which shows the framework structure in the front-back part of the building of FIG. It is a figure which shows roughly the longitudinal direction sectional drawing of the building of FIG. It is a figure which shows the detailed structure of the beam material in the building of FIG. It is a figure explaining the cross section of the building of FIG. 1, and the circulation of air. It is a figure which shows the floor structure in the building of FIG. It is a figure which shows the conventional cooling device which exhausts heat to outside air and cools a room | chamber interior.

Hereinafter, the building of the present invention used as a data center or the like will be described with reference to the drawings.
As can be seen from the overall view of FIG. 1, the building of the present invention is constructed as a container-type data center based on a transport container, and as a whole has a box-shaped structure that is a hexahedron cuboid. None, it has a rectangular shape in plan view. At both ends of the rectangle, a front-side columnar member 1F and a rear-side columnar member 1R constituting the frame body are arranged (in the side view, except for the side wall of the box structure, for convenience, the left side Fasteners 2 are fixed to the upper and lower portions of each columnar member. The fastening bracket 2 is fixed to each columnar member so as to be located at the outermost part of the building, and the roof 3 of the building is installed at a position lower than the fastening bracket fixed to the upper part. Has been.

  The interior of the building occupies a major part of an electronic device storage room CR in which computers such as servers and storages are stored in a rack 4 and stored indoors. A power supply unit EU for supplying power to a computer or the like is placed on the overhanging portion EL at the lower front part of the electronic device housing chamber CR, and between the front end wall of the electronic device housing chamber CR and the columnar member 1F above the overhanging portion EL. Is an installation space for the outdoor unit CD for preliminary air conditioning that executes the refrigeration cycle. This space is not limited to the outdoor unit CD for preliminary air conditioning, but can be equipped with ancillary facilities of a data center such as a storage for maintenance management supplies. In the data center of this embodiment, auxiliary equipment such as a pre-air conditioning outdoor unit CD and a power supply unit EU are installed in the building to form a unit, but when these are installed separately from the building, The electronic device housing chamber CR can be extended to the position of the columnar member 1F on the front side.

  The fastening bracket 2 used in the building of the present invention is the same bracket as the corner casting placed at the corner of the marine container, and as shown in FIG. 2, a solid rectangular solid structure combining six thick plates. It is normally manufactured with cast steel so that it can be welded to a columnar member. A through hole for engaging a fastener such as a twist cone TC is formed in the thick plate on the outer surface of the building. When stacking a building, the upper projection of the twist cone TC is fitted into the through hole of the upper fastening fitting 2, the twist cone TC is rotated by a predetermined angle, and the lower projection is fitted into the lower fastening fitting 2, so that both Link. Incidentally, a twist lock mounted on a container chassis, which is a container for ground transportation of containers, is also fixed by inserting its upper protrusion into a corner casting on the lower side of the container and rotating it by a predetermined angle.

  The building of the present invention can be stacked directly by engaging a fastener such as a twist cone with the fastener 2 as shown in FIG. Correspondingly, it can be easily expanded. In some cases, as shown in FIG. 3 (b), a parallel extension using a fastening tool connected in the lateral direction is also possible. Forklifts can be used when stacking buildings and loading onto container chassis. Forklift forks are inserted into the bottom frame 5 placed at the bottom of the building at two locations in the longitudinal direction. A fork pocket FP is provided (FIG. 1). The fork pocket FP is a square pipe having a quadrangular cross section and a large strength, and extends in a right angle (lateral direction) to the longitudinal direction of the bottom frame 5 that is rectangular in plan view, and is attached to the bottom frame 5 by welding or rivets. (See also FIG. 8).

FIG. 3A shows a frame structure near the front frame body FF provided with the front side columnar member 1F, and FIG. 3B shows a rear frame frame provided with the rear side columnar member 1R. The framework structure near body RF is shown. The columnar member 1F on the front side has a flat, flat, uniform cross section, and the fastener 2 is fixed to the upper and lower portions thereof by welding, and the front header FH is hung on the upper portions of the left and right columnar members 1F. It is passed and welded, thereby constituting a frame body. The columnar member 1R of the rear frame frame RF also has a flat rectangular uniform cross-section, and the upper and lower parts are welded with the fasteners 2, but the hinge of the double door RD (FIG. 1) is attached. Four notches are formed in the middle. The rear columnar member 1R is hung with a rear header RH over the left and right columnar members, and a beam member 6 that connects the two columnar members 1R under the rear header RH of the building. Has been passed. A cam keeper CK for a lock rod LR (FIG. 1) for closing the double door RD is fixed to the beam member 6.
The lock rod is a bar having high strength and rigidity in which a cam member is integrally fixed to an upper end and a lower end. In the building of the present invention, the lock rod LR of the double door that becomes the entrance / exit is present as a reinforcing pillar between the beam member 6 and the bottom frame 5, so that the strength of the building is increased. Even when stacked, deformation is reduced.

Next, the structure of the electronic device housing chamber and its ceiling portion in the building of the present invention will be described with reference to FIGS.
FIG. 5 schematically shows a longitudinal cross-sectional view of the building of the present invention (a cross-sectional view taken along the line AA in FIG. 7A described later). In the electronic device storage room CR, a computer is stored. The rack 4 is omitted. As shown in this figure, the front end of the electronic device housing room CR is a front end wall FW that partitions the space between the front air conditioning outdoor unit CD and the lower part, and the lower part is installed with the power source EU. It is an overhang part EL. The front end wall FW may be extended downward and the front of the front end wall FW may be made independent as a machine room for a power source or incidental equipment.
A front end wall frame FWF including two column members and a header is provided around the front end wall FW, and the front end wall frame FWF is connected to the front frame frame including the columnar member 1F by a connecting member CM. (See FIG. 4A). The rear end of the electronic device housing chamber CR is a rear end wall RW placed slightly in front of the double door RD. The rear end wall RW is provided with a lockable inner door (not shown), and the security of the electronic device housing room CR of this embodiment is improved by a double door.

  And in the ceiling part of electronic equipment storage room CR, the intermediate | middle ceiling board 7 is provided under the roof 3 of a building, and the double ceiling is formed in this part. Between the roof 3 and the intermediate ceiling plate 7, a beam member 8 extending in the longitudinal direction is provided over the entire length of the electronic device housing chamber CR. The front end of the beam member 8 is fixed to the upper part of the front end wall FW, while the rear end is extended rearward from the rear end wall RW and fixed to the upper part of the rear frame body RF into which the double door RD is fitted. Attached.

  FIG. 6 shows the detailed structure of the beam member 8 and its mounting portion. As shown in FIG. 6C (see also FIG. 7 described later), the beam member 8 is a long plate-like member whose cross section is basically a straight line in the vertical direction, and has a quadrilateral shape at the top. A reinforcing member 81 forming a closed cross section is welded, and a gutter member 82 having walls on both sides of the cross section is welded to a lower portion so as to form a water channel. As shown in FIGS. 6B and 6C, the front end of the beam member 8 is fixed to the front end wall FW by welding a gusset 83 having an L-shaped cross section to the front end wall FW and the beam member 8. At this time, the eaves member 82 passes through the front end wall FW and communicates with the front drain port WE (see FIG. 4A). Further, as shown in FIG. 6C, the rear end of the beam member 8 is fixed to the rear frame frame RF using a gusset 84 whose upper portion is also L-shaped in cross section.

FIG. 7A is a cross-sectional view of the electronic device housing chamber CR, in which a heat exchanger for cooling indoor air and an outdoor heat exchanger for exhaust heat are respectively located below the intermediate ceiling plate 7. And above. FIG. 7B shows the flow of air flowing through these heat exchangers.
A large number of electronic devices such as computers are housed in the electronic device storage room CR in such a manner that they are housed in the rack 4, and the rack 4 is fixed on a T-shaped plate material 9 laid on the floor (details). The structure will be described later), and the electronic device housing chamber CR is installed at a substantially central portion in the cross section. Above each rack 4, a heat exchanger outer box 10H containing a heat exchanger 10 for cooling the air in the electronic device housing chamber CR is attached. The rack 4 and the heat exchanger 10 are It constitutes a unitized rack-heat exchanger assembly. In order to increase the strength and earthquake resistance of the rack 4 and the like, the upper part of the rack-heat exchanger assembly is fixed to the intermediate ceiling plate 7. In this embodiment, eight rack-heat exchanger assemblies are installed in the electronic device accommodating room CR (FIG. 1), and the upper heat exchanger of the rack mainly separates the lower rack combined. It is a heat exchanger for cooling.

An outdoor heat exchanger 11 is placed above the heat exchanger 10 that cools the electronic device housing room CR, which is between the beam member 8 and one side surface of the building (the left side surface in FIG. 7). 1 is placed on the upper part of the intermediate ceiling plate 7 outside the electronic device housing room CR. Both heat exchangers are in communication with each other as in the heat exchange device described in Patent Document 2, and a refrigerant that performs a gas-liquid phase change is sealed inside. A fan 12 that circulates air in the electronic device housing chamber CR is attached to the end of the indoor heat exchanger 10, and a fan 13 that introduces outside air is installed in the end of the outdoor heat exchanger 11. Installed.

As shown in FIG. 7B, as the computer housed in the rack 4 generates heat, the indoor air whose temperature has risen rises in the electronic device housing room CR as indicated by the arrow on the left side of the figure and heats up. The liquid refrigerant introduced into the exchanger 10 and sealed inside is boiled. The refrigerant that has become gas enters the outdoor heat exchanger 11 by convection, where heat is radiated to the outside air to condense, and is returned to the indoor heat exchanger 10 in a state where the temperature is lowered. The indoor air cooled by the heat exchanger 10 is sent out as indicated by the arrow on the right side of the figure by the fan 12 that circulates the cooling air, and cools the computer and the like stored in the rack 4.
On the other hand, in the outdoor heat exchanger 11 that exhausts heat from the electronic device housing chamber CR, the outside air introduced by the fan 13 cools the outdoor heat exchanger 11 and then bends at right angles to extend in the longitudinal direction of the building. It passes through the common exhaust duct 14 and is discharged from the outlet at the upper front end or upper rear end of the building. The flow of outside air may be reversed and discharged from the fan 13.

As described above, the beam member 8 extending in the longitudinal direction is provided between the roof 3 of the building and the intermediate ceiling plate 7 over the entire length of the electronic device housing chamber CR. In this embodiment, the intermediate ceiling plate 7 is a heat insulating panel in which heat insulating materials are laminated. As shown in the enlarged cross-sectional view, the intermediate ceiling plate 7 is fixed to a flange member 82 welded to the lower portion of the beam material 8 by rivets or adhesion. The The roof 3 is fixed above the beam member 8 and above the reinforcing member 81 forming a closed cross section. That is, the roof 3 of the building and the intermediate ceiling plate 7 on which the outdoor heat exchanger 11 is installed are respectively attached to the beam member 8, and the load acting on the ceiling portion is a frame frame having high strength via the beam member 8. Is transmitted to. Therefore, the strength and rigidity of the roof portion of the building are increased, and even a heavy heat exchanger can be reliably supported. As a result of reinforcing the roof of the building, the earthquake resistance of the entire building is improved, and deformation of the building can be reduced during stacking as shown in FIG.
In addition, rainwater or the like contained in the outside air that cools the outdoor heat exchanger 11 flows from the upper surface of the intermediate ceiling plate 7 into the eaves member 82 below the beam member 8 and is discharged to the outside through the drain port. The eaves member 82 also functions as a reinforcing member for the beam member 8, and in particular, the rigidity against moment load acting on the beam member is further increased.

  The indoor air cooling device in this embodiment is of a natural cooling type in which two heat exchangers enclosing a refrigerant circulated by convection are provided, and the heat in the sealed room is exhausted. Cooling can be performed without use. However, in order to cool indoor air, a refrigeration cycle may be executed by installing a compressor or the like, and an evaporator (evaporator) of the refrigeration cycle may be installed indoors as a heat exchanger. Also in this embodiment, in preparation for a situation where the outside air temperature rises and the cooling capacity of the natural cooling type cooling device is insufficient, a spare air conditioner for executing the refrigeration cycle is installed, and the evaporator EV ( FIG. 7 (a)) is mounted on the ceiling surface, and an outdoor unit CD (FIG. 1) containing a compressor and a condenser (condenser) is installed at the upper part on the front side of the building as ancillary equipment.

  The floor structure of the building of the present invention is shown in FIG. The bottom of the building is provided with a bottom frame 5 in which a plurality of cross members 51 are spanned at appropriate intervals on a rectangular frame in plan view, and fork pockets FP crossing the bottom frame 5 are attached at two locations. It is done. Above the cross member 51, a sandwich panel 15 in which metal plates such as aluminum are laminated on both sides of a heat insulating material such as foamed synthetic resin is installed on almost the entire surface of the building floor. A T-shaped plate material 9 in which a plurality of shaped protrusions 91 are formed in parallel on the bottom plate is laid.

As the T-shaped plate member 9, a long aluminum extruded shape member called a so-called T-shaped board is used. As shown in FIG. 8 (a), the T-shaped plate member 9 is laid over almost the entire length of the building to the floor surface of the overhanging portion. ing. As shown in FIG. 8B, a hat-shaped plate material 16 having a hat-shaped cross-sectional shape is laid in a portion where the T-shaped plate material 9 is not laid, and a shallow dish-shaped space is formed here. Portions other than the place where the rack 4 is placed, including the upper portion of the hat-shaped plate material 16, are covered with a thin plate cover (not shown).
In this floor structure, the cable between the projections 91 of the T-shaped plate member 9 and the space of the hat-shaped plate member 16 can be freely wired to the computer stored in the rack. Further, the cooling air circulated in the room by the fan 12 (FIG. 7) passes through these spaces and flows into the periphery and the lower part of the rack. Therefore, the heat generated from the computer or the like is efficiently removed, and a thermal failure due to a temperature rise is prevented.

  As described above in detail, the present invention provides an intermediate ceiling plate below the roof of the building, and stores the electronic device in the electronic device storage chamber below the intermediate ceiling plate, and between the roof and the intermediate ceiling plate. The outdoor heat exchanger is installed to exhaust heat to the outside air, and further, a beam material extending in the longitudinal direction of the electronic device storage chamber is provided between the roof and the intermediate ceiling plate, and this is provided at both ends of the electronic device storage chamber. It fixes to the end wall of. In the above embodiment, the front end of the beam material is set at the position of the end wall of the electronic device housing chamber. However, the beam material extends through the end wall to the front end of the building, and the frame there You may make it fix to a frame. In addition, for cooling electronic equipment, an outside air cooling method using a natural convection circulation type heat exchanger is used, but instead, an air conditioner that performs a refrigeration cycle is adopted, and the outdoor unit is You may install in the upper part of an intermediate ceiling board. Thus, specific embodiments of the present invention are not limited to the above-described embodiments, and it is obvious that various modifications can be made thereto.

DESCRIPTION OF SYMBOLS 1F Front side columnar member, 1R Rear side columnar member 2 Fastening bracket 3 Roof 4 Rack 5 Bottom frame 7 Intermediate ceiling board 8 Beam material 81 Reinforcement material 82 Gutter member 10 Heat exchanger (for indoor air cooling)
11 Outdoor heat exchanger 12 Fan (for indoor air circulation)
FF front frame frame, RF rear frame frame

Claims (7)

A rectangular parallelepiped structure containing electronic equipment in a room,
Frame frames having columnar members are arranged at both ends of the building,
An intermediate ceiling plate is provided below the roof of the building, and the electronic device is housed in an electronic device housing chamber formed below the intermediate ceiling plate,
In the electronic device housing chamber, a heat exchanger for cooling indoor air and a fan for circulating the cooled air are installed, and between the roof of the building and the intermediate ceiling plate, An outdoor heat exchanger that exhausts the heat absorbed by the heat exchanger to the outside air is installed.
The electronic device housing chamber has a rectangular shape in plan view, and end walls at both ends in the longitudinal direction are connected to the frame frame,
Between the roof of the building and the intermediate ceiling plate, a beam material extending in the longitudinal direction over the entire length of the electronic device housing chamber is provided, and the beam material is provided at the ends of the both ends of the electronic device housing chamber. While being fixed to the part wall or the frame frame, the roof of the building and the intermediate ceiling plate are attached to the beam material ,
The outdoor heat exchanger is installed between the beam material and one side surface of the building. Below the beam material, a gutter member that extends in the longitudinal direction over the entire length of the electronic device housing chamber and drains water remaining on the upper surface of the intermediate ceiling plate on which the outdoor heat exchanger is installed is fixed, The building according to claim 1, wherein the gutter member communicates with a drain outlet. The building according to claim 1 or 2, wherein the intermediate ceiling plate is provided below a part of the roof of the building. A plurality of electronic devices are housed in a rack, and a heat exchanger outer box containing the heat exchanger is attached above the rack, and the heat exchanger outer box is attached to the intermediate ceiling plate. The building according to claim 1, which is fixed to the building. 5. The heat exchanger and the outdoor heat exchanger communicate with each other, a refrigerant circulating by convection is enclosed therein, and indoor heat is exhausted from the outdoor heat exchanger. A building according to any of the above. Fasteners that can be fastened by fasteners are fixed to the upper and lower parts of the columnar members of the frame body, and the roof of the building is positioned lower than the fasteners fixed to the upper part. The building according to any one of claims 1 to 5, wherein the building is installed. The incidental facility for the electronic device storage chamber is installed between an end wall of the electronic device storage chamber and the frame frame connected to the end wall. The building described in.

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