JP2010034446A - Electronic apparatus storing rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of storing rack for stably lowering temperature within the rack, without becoming under adverse effects from the outside of rack. <P>SOLUTION: A water-cooling type air conditioner 81 is installed in a side-part of the rack body 11 for storing the plurality of electronic apparatuses 71. The water-cooling type air conditioner 81 is provided with a heat exchanger 101 for circulating the cooling water and a front-side fan 141 for circulating the air within the rack body 11 via the heat exchanger 101, and the heat generated within the rack body 11 is transferred into the cooling water within the heat exchanger 101 and the heat in the rack body 11 is exhausted to the external side of the rack body 11 by using the cooling water as the medium. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device storage rack that stores electronic devices such as server computers and network devices.

  Conventionally, when managing electronic devices such as server computers and network devices, electronic device housing racks such as 19-inch cabinets and 19-inch racks are used.

  For example, an electronic device such as a server is mounted on the electronic device housing rack, and the temperature in the rack rises due to heat generated by these electronic devices. Then, stable operation of the electronic device is hindered, and in the worst case, problems such as electronic device stoppage may occur.

  In order to prevent this, this electronic equipment storage rack is provided with cooling air vents in the front, side, back, or ceiling, or air outside the rack is removed using a fan motor. An air-cooling method is adopted that forcibly takes in and discharges the heat generated from the electronic equipment to the outside of the rack.

  However, in such electronic equipment storage racks, the method of forcibly taking in air outside the rack using a cooling vent or a fan motor is affected by the temperature outside the rack, so Stabilization was difficult.

  In addition, the number of electronic devices mounted has to be limited due to the allowable temperature in the rack determined by the vent hole area, fan motor performance, outside air temperature, electronic device operating temperature, and the like.

  The present invention has been made in view of such a conventional problem, and provides an electronic device housing rack that can stably reduce the temperature inside the rack without being affected by the temperature outside the rack. It is the purpose.

  In order to solve the above-mentioned problem, in the electronic device housing rack according to claim 1 of the present invention, in the electronic device housing rack in which a plurality of electronic devices are housed in the rack body, cooling water circulates in the rack body. And a fan that circulates the air in the rack body through the heat exchanger. The heat generated in the rack body is transferred to the cooling water in the heat exchanger, and the rack is used as a medium with the cooling water as a medium. A water-cooled air conditioner that exhausts heat inside the main body to the outside of the rack body was provided.

  That is, a water-cooled air conditioner is provided in the rack body in which the electronic equipment is accommodated, and the air in the rack body is circulated through the heat exchanger by the fan of the water-cooled air conditioner.

  At this time, the heat in the rack body generated from the electronic device is transferred to the cooling water circulating in the heat exchanger, and is discharged outside the rack body using the cooling water as a medium.

  Further, in the electronic equipment housing rack according to claim 2, the water-cooled air conditioner is disposed on the left or right side of the rack body, and the air discharged from the back of the electronic equipment that sucks air from the front is discharged. Taken from the rear side of the water-cooled air conditioner, cooled by the heat exchanger, supplied from the front side of the water-cooled air conditioner to the front side of the electronic device, from the front side of the water-cooled air conditioner A recirculation path that allows the supplied air to pass from the front side to the back side of the electronic device and return to the rear side of the water-cooled air conditioner was configured.

  That is, the electronic device mounted on the rack body is generally configured to inhale air from the front and pass through the interior, and then discharge from the back, and the water-cooled air conditioner includes the rack Arranged on the left or right side of the main body, the air exhausted from the back surface of the electronic device is taken in from the rear side, and the taken-in air is cooled by the heat exchanger, and the electronic device is It is configured to supply to the front side. In addition, a circulation path is configured to allow air supplied from the front side of the water-cooled air conditioner to pass from the front side to the back side of the electronic device and to return to the rear side of the water-cooled air conditioner. .

  Therefore, the air supplied from the front side of the water-cooled air conditioner is allowed to pass from the front side to the back side of the electronic device to cool the inside, and the air heated by the electronic device is The air-cooled air conditioner is taken in from the rear side, and the air taken in is cooled by the heat exchanger and supplied from the front side to the front side of the electronic device. It is possible to form a circulation cycle in the rack body such that it is cooled by the air conditioner and supplied to the electronic device again.

  As a result, the electronic device is continuously supplied with a stable cold air.

  Furthermore, in the electronic device accommodation rack according to claim 3, the water-cooled air conditioner is disposed on a side portion side of the rack body, and the air discharged from the back of the electronic device that sucks air from the side surface is supplied to the water-cooled air conditioner. The air is taken from the rear side, cooled by the heat exchanger and supplied from the side of the water-cooled air conditioner to the side of the electronic device, and the air supplied from the side of the water-cooled air conditioner, A reflux path is configured to pass from the side surface of the electronic device to the back surface side and return to the rear side of the water-cooled air conditioner.

  That is, as the electronic device mounted on the rack body, there is a device that sucks air from the side and passes the air through the inside, and then discharges it from the back. The water-cooled air conditioner is provided on the side of the rack body. The air exhausted from the back side of the electronic device is taken in from the rear side, and the taken-in air is cooled by the heat exchanger and supplied from the side side to the side surface side of the electronic device. ing. In addition, a recirculation path that allows air supplied from the side of the water-cooled air conditioner to pass from the side surface to the back side of the electronic device and returns to the rear side of the water-cooled air conditioner is configured. .

  For this reason, the air supplied from the side portion side of the water-cooled air conditioner is allowed to pass from the side surface of the electronic device to the back side to cool the inside, and the air heated by the electronic device is The air-cooled air conditioner is taken in from the rear side, and the air taken in is cooled by the heat exchanger and supplied from the side part side to the side surface of the electronic device. It is possible to form a circulation cycle in the rack body such that it is cooled by the air conditioner and supplied to the electronic device again.

  Thereby, even if it is an electronic device with which the intake part was provided in the side surface, the stable cold wind is supplied continuously.

  In addition, in the electronic equipment housing rack according to claim 4, the rack main body includes a mounting area in which the electronic equipment is mounted, a water-cooled air conditioner area in which the water-cooled air conditioner is disposed, It was divided into a water-cooled air conditioner maintenance area.

  That is, the rack body is provided with a mounting area where electronic devices are mounted, a water-cooled air conditioner area where water-cooled air conditioners are installed, and a water-cooled air conditioner maintenance area. As defined by the EIA standards, etc., conventional rack functions such as mounting of 19-inch mounting equipment, opening and closing of doors, removal of covers, wiring cable wiring inside and outside of the rack body, anchor installation, caster mounting, etc. Cooling using a water-cooled air conditioner is possible without loss.

  Moreover, in the electronic device accommodation rack of claim 5, the water-cooled air conditioner area and the mounting area are partitioned by a partition plate.

  That is, by separating the mounting portion of the water-cooled air conditioner and the electronic device mounting portion with a partition plate, the air before cooling by the heat exchanger is suppressed from flowing into the electronic device side, and the cooling performance is maintained. The

  Furthermore, in the electronic device housing rack according to claim 6, a wiring plate is provided in a cable wiring hole that communicates the rack body with the outside.

  That is, the rack body needs to close the opening that communicates the inside and the outside in order to stabilize the cooling performance.

  On the other hand, the rack body is provided with a cable insertion hole for connecting a cable, and this cable passage hole is closed by a passage plate to prevent opening. For this reason, by providing this wiring plate, the wiring is performed while maintaining the hermeticity.

  In addition, in the electronic equipment housing rack according to claim 7, a joint to which a pipe for cooling water is detachably connected is provided in the heat exchanger of the water-cooled air conditioner.

  In other words, a joint is provided in the heat exchanger, and a pipe for cooling water can be attached and detached by this joint. Thereby, piping to the said heat exchanger is performed easily.

  In the electronic equipment housing rack according to claim 8, the water-cooled air conditioner is detachably provided on the rack body.

  That is, the water-cooled air conditioner can be attached to and detached from the rack body and can be easily replaced.

  Furthermore, in the electronic equipment housing rack according to claim 9, the cover provided on the rack body and the water-cooled air conditioner have a heat insulating structure.

  That is, the covers and the water-cooled air conditioner provided on the rack body have a heat insulating structure, and the influence of the outside air temperature and the heat conduction between the racks when the racks are connected can be minimized.

  As described above, in the electronic equipment housing rack according to claim 1 of the present invention, the air inside the rack body is circulated through the heat exchanger by the fan of the water-cooled air conditioner, thereby Heat from the electronic device can be transferred to the cooling water circulating through the heat exchanger, and can be discharged outside the rack body using the cooling water as a medium.

  Thus, by mounting the water-cooled air conditioner on the rack body, the influence of the temperature outside the rack can be minimized and the temperature in the rack can be stabilized while the rack body is kept sealed.

  Therefore, the temperature inside the rack can be stably reduced without being affected by the outside temperature of the rack, compared to the conventional case where the outside air temperature is affected by the structure that takes in the air outside the rack body and cools it. Can do.

  Further, the number of mounted electronic devices can be increased as compared with the conventional case where the number of mounted electronic devices is limited by the allowable temperature in the rack determined by the vent hole area, the performance of the fan motor, and the outside air temperature.

  And the heat_generation | fever larger than an air cooling system can be processed by changing the cooling capacity of the said water cooling type air conditioner mounted in the said rack main body. Thereby, the temperature rise in a rack can be suppressed and more electronic devices can be mounted than an air cooling system.

  In the electronic device storage rack according to claim 2, in a state where a general electronic device that sucks air from the front and discharges it from the back is stored, the air supplied from the front side of the water-cooled air conditioner is Then, the inside of the electronic device is passed from the front side to the back side to cool the inside, and the air warmed by the electronic device is taken from the rear side of the water-cooled air conditioner, and the taken-in air is taken by the heat exchanger. By cooling and supplying the front side of the electronic device from the front side, the air heated by the electronic device is cooled by the water-cooled air conditioner and supplied to the electronic device again. It can be formed in the body.

  Accordingly, it is possible to continuously supply a stable cold air to an electronic device in which air sucked from the front surface is discharged from the rear surface, and it is possible to maintain a stable cooling performance.

  Furthermore, in the electronic device storage rack according to claim 3, when the electronic device that sucks air from the side and discharges it from the back is stored, the air supplied from the side of the water-cooled air conditioner is The inside of the electronic device is passed from the side to the back side to cool the inside, and the air warmed by the electronic device is taken in from the rear side of the water-cooled air conditioner, and the taken-in air is cooled by the heat exchanger. By supplying the air heated from the side portion side to the side surface side of the electronic device, the air heated by the electronic device is cooled by the water-cooled air conditioner and supplied to the electronic device again. Can be formed.

  Thereby, even if it is an electronic device from which the air suck | inhaled from the side surface is discharged | emitted from a back surface, the stable cold wind can be supplied continuously and the stable cooling property can be maintained.

  In addition, in the electronic equipment storage rack according to claim 4, a mounting area in which the electronic equipment is mounted, a water-cooled air conditioner area in which the water-cooled air conditioner is disposed, and a water-cooled air conditioner are provided in the rack body. A maintenance area is provided. For example, as specified in JIS standards, EIA standards, etc., installation of 19-inch mounting equipment, opening and closing of doors, removal of covers, wiring cable wiring inside and outside the rack body, anchors Cooling using the water-cooled air conditioner can be performed without impairing conventional rack functions such as installation and caster attachment.

  Further, in the electronic equipment storage rack according to claim 5, air before cooling by the heat exchanger flows into the electronic equipment side by dividing a mounting portion of the water-cooled air conditioner and an electronic equipment mounting portion by a partition plate. Can be suppressed. Thereby, the cooling performance by the water-cooled air conditioner can be maintained.

  Further, in the electronic equipment housing rack according to claim 6, the rack body is provided with a cable insertion hole for connecting a cable, and the cable passage hole is closed by a passage plate so as to be opened. Can be prevented.

  For this reason, by providing this wiring plate, it is possible to perform wiring while maintaining hermeticity, and it is possible to stabilize the cooling performance in the rack body.

  In addition, in the electronic equipment housing rack according to claim 7, by providing a joint to which a pipe for cooling water is detachably connected to the heat exchanger of the water-cooled air conditioner, the joint is used for cooling water. The pipes can be attached and detached.

  Thereby, piping to the said heat exchanger can be performed easily.

  In the electronic device housing rack according to claim 8, since the water-cooled air conditioner is detachably provided on the rack body, the rack body of the water-cooled air conditioner can be attached and detached. As a result, the water-cooled air conditioner can be easily replaced, and maintenance is improved.

  Furthermore, in the electronic device housing rack according to claim 9, by making the covers provided on the rack body and the water-cooled air conditioner into a heat insulating structure, the influence of outside air temperature can be suppressed, and at the time of rack connection. The heat conduction between the racks can be minimized.

  Thereby, the influence from the outside can be minimized.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. This embodiment is an example of the present invention.

  FIG. 1 is a diagram showing an electronic device housing rack 1 according to the present embodiment. The electronic equipment storage rack 1 stores and manages electronic equipment such as server computers and network equipment, and a 19-inch rack suitable for use in factory equipment, network equipment, and the like is shown.

  The rack body 11 of the electronic device housing rack 1 is formed in a vertically long rectangular parallelepiped shape, and a rectangular base 12 is provided at the bottom of the rack body 11. The base 12 is provided with anchors, casters and the like (not shown) as in the conventional rack, and a power outlet 13 and connectors 14 can be provided on the front surface of the base 12, for example.

  As shown in FIG. 2, the rack body 11 includes a rectangular bottom chassis 21, and the bottom portion is covered with the bottom chassis 21. A rectangular bottom chassis cable connection port 22 is formed at the rear edge of the bottom chassis 21, and the inside and outside of the rack body 11 communicate with each other through the bottom chassis cable connection port 22.

  The bottom chassis 21 is attached with a bottom chassis wiring plate 23 that closes the bottom chassis cable wiring port 22 so as to be openable. The bottom chassis wiring plate 23 is removed, and the bottom chassis 21 is removed as necessary. By opening the cable connection port 22, a cable or the like can be extended from the inside of the rack body 11 to the outside.

  At this time, a gap is formed between the bottom chassis cable connection port 22 and the bottom chassis connection plate 23 to extend the cable, thereby minimizing the opening area of the bottom chassis cable connection port 22. However, the cable can be routed.

  As shown in FIGS. 1 and 2, side covers 31 and 31 are erected on both side edges of the bottom chassis 21. A pair of acrylic doors or steel doors 32, 32 are provided at the front edge of the bottom chassis 21, and the acrylic doors or steel doors 32, 32 are hinged 33,.・ Supported via A pair of steel doors 34, 34 are provided at the rear edge of the bottom chassis 21, and each steel door 34, 34 is supported by a corresponding body frame via a hinge 35,. Yes.

  A rectangular top cover 41 is provided on the top of the rack body 11, and the top is covered with the top cover 41. A rectangular top cover cable connection hole 42 is formed near the rear edge of the top cover 41, and the inside and the outside of the rack body 11 communicate with each other through the top cover cable connection hole 42.

  A rectangular top cover wiring plate 43 is detachably attached to the top cover 41. The top cover wiring plate 43 is removed as necessary, and the top cover cable wiring hole 42 is opened. Thus, the cable or the like can be extended from the inside of the rack body 11 to the outside.

  At this time, a gap is formed between the top cover cable passage hole 42 and the top cover passage plate 43 to extend the cable, thereby minimizing the opening area of the top cover cable passage hole 42. However, the cable can be routed.

  As shown in FIGS. 2 to 4, the rack main body 11 has a mounting device mounting area 51 set on the right side, and a water-cooled air conditioner area 52 is set on the left side. A water-cooled air conditioner maintenance area 53 is set below the water-cooled air conditioner area 52, and the inside of the rack body 11 includes the mounting device mounting area 51, the water-cooled air conditioner area 52, and the It is divided into a water-cooled air conditioner maintenance area 53.

  As shown in FIG. 4, a partition plate 61 is provided between the water-cooled air conditioner area 52 and the mounting device mounting area 51, and the water-cooled air conditioner area 52 is provided by the partition plate 61. The mounting device mounting area 51 is partitioned. As shown in FIG. 5, a bracket 62 is provided between the water-cooled air conditioner area 52 and the water-cooled air conditioner maintenance area 53, and the bracket 62 provides the water-cooled air conditioner area 52 and the water-cooled air conditioner area 52. A water-cooled air conditioner maintenance area 53 is partitioned.

  As shown in FIG. 2, the mounting device mounting area 51 is provided with support pillars 72, 72 that support the electronic devices 71,. It is comprised so that it can support from both sides by both the support pillars 72 and 72. FIG. Thus, the mounting device mounting area 51 is configured to accommodate a plurality of electronic devices 71 in a vertically arranged state.

  In the water-cooled air conditioner area 52, a water-cooled air conditioner 81 is set as shown in FIG.

  The water-cooled air conditioner 81 is unitized, and the water-cooled air conditioner 81 is configured to be detachably attached to the water-cooled air conditioner area 52 of the rack body 11. Thus, the water-cooled air conditioner 81 is configured to be disposed on the side of the rack body 11.

  The casing 91 of the water-cooled air conditioner 81 is formed in a vertically long rectangular parallelepiped shape suitable for the water-cooled air conditioner area 52, and the casing 91 is formed in a deeply long shape.

  In this casing 91, as shown in FIGS. 3 and 4, a rectangular plate-shaped heat exchanger 101 composed of a radiator through which cooling water circulates is disposed, and the heat exchanger 101 has a rear end. The part is fixed to the right side 102 side of the casing 91 located inside the rack body 11. In addition, the front end portion of the heat exchanger 101 is fixed to the left side surface 103 side of the casing 91, and the heat exchanger 101 is disposed obliquely in the casing 91.

  As shown in FIG. 5, a water supply joint 112 and a drainage joint 113 connected to the heat exchanger 101 extend from the bottom surface 111 of the casing 91, and both joints 112, 113 are connected to the casing 91. In a state where 91 is placed on the bracket 62, it is configured to extend to the lower water-cooled air conditioner maintenance area 53 through an insertion portion 114 formed at the front portion of the bracket 62.

  A water supply pipe 121 that supplies cooling water to the heat exchanger 101 can be detachably connected to the water supply joint 112 in the water-cooled air conditioner maintenance area 53. Is configured such that a drain pipe 122 for discharging cooling water from the heat exchanger 101 to the outside can be detachably connected.

  As shown in FIGS. 3 and 4, the rear end surface 131 of the casing 91 extends along the steel doors 34, 34 constituting the back surface of the rack body 11. The opposed front end surface 132 is configured by an inclined surface inclined toward the mounting device mounting area 51 side. The rear end face 131 has a plurality of rear intake ports 135,... With filters that are open to take in air from the mounting device mounting area 51, and the front end face 132 has A plurality of front supply ports 136 opened toward the mounting device mounting area 51 side are opened.

  The front end surface 132 is provided with front fans 141,... For circulating the air in the rack body 11 in the vertical direction, and the air in the casing 91 is passed through the front supply port 136. It is configured so that it can be supplied to the mounting device mounting area 51 side.

  Thus, when the air from the mounting device mounting area 51 is taken into the casing 91 through the rear intake port 135,... Of the water-cooled air conditioner 81 and passed through the heat exchanger 101, The heat generated from the electronic devices 71 in the mounting device mounting area 51 is moved to the cooling water in the heat exchanger 101 for cooling, and the cooled air is sent to the front fans 141,. Is configured to be supplied from the front supply ports 136,... To the mounting device mounting area 51 side, and the cooling water in the heat exchanger 101 is used as a medium for the mounting device mounting area 51. The heat generated in the rack body 11 generated from the electronic devices 71,... Can be discharged to the outside of the rack body 11.

  As shown on the left side in FIG. 3, the water-cooled air conditioner 81 is designed for an electronic device 71a that discharges air sucked from the front surface 151 from the back surface 152. From the back surface 152 of the electronic device 71a, The discharged air is taken in from a rear intake port 135 provided on the rear side, cooled by the heat exchanger 101, and then from the front supply port 136 provided on the front side, the front surface 151 of the electronic device 71a. Air supplied from the front side of the water-cooled air conditioner 81 is allowed to pass from the front surface 151 to the back surface 152 side of the electronic device 71a, and the water-cooled air conditioner The first partial flow path 155 returning to the rear side of the machine 81 can be formed.

  On the other hand, as shown on the right side in FIG. 3, there is also known an electronic device 71b that discharges air sucked from the side surface 161 from the back surface 162. When applied to the electronic device 71b, the right side surface of the casing 91 is known. A water-cooled air conditioner 81 provided with a side fan 163,.

  In the case of this water-cooled air conditioner 81, the air from the mounting device mounting area 51 is taken into the casing 91 of the water-cooled air conditioner 81 from the rear intake port 135 of the water-cooled air conditioner 81. When passing through 101, the heat generated from the electronic device 71b in the mounting device mounting area 51 is moved to the cooling water in the heat exchanger 101 for cooling, and the cooled air is sent to the side fan. 163 is supplied to the mounting device mounting area 51 side from the side supply ports 164,... Opened on the right side surface 102 (see FIG. 5), and cooling in the heat exchanger 101 is performed. It is configured so that heat in the rack body 11 generated from the electronic devices 71b in the mounting device mounting area 51 can be discharged to the outside using water as a medium. That.

  Thus, the air exhausted from the back surface 162 of the electronic device 71b,... That exhausts the air sucked from the side surface 161 from the back surface 162 is taken in from the rear intake port 135 provided on the rear side, and the heat After being cooled by the exchange 101, it is configured to be supplied to the side surface 161 side of the electronic device 71b,... From the side supply ports 164,. The second recirculation that allows the air supplied from the side of the air conditioner 81 to pass from the side surface 161 to the back surface 162 of the electronic equipment 71b,... And returns to the rear side of the water-cooled air conditioner 81. The path 165 can be formed.

  The top cover 41, the top cover wiring plate 43, the side cover 31, and the steel doors 34, 34 of the rack body 11 and the water-cooled air conditioner 81 have a heat insulating structure. As the heat insulating structure, a heat insulating material is provided on the inner surface of each member 41, 43, 31, 34, 34 of the rack body 11 and the inner surface of the casing 91 of the water-cooled air conditioner 81, or a heat insulating paint is used. Examples of the structure include coating.

  In FIG. 2, for convenience of explanation, front supply ports 136,... Are provided on the front end surface 132 of the casing 91, and the side supply ports 164,. Although the water-cooled air conditioner 81 is provided, the front supply ports 136,... Or the side supply ports 164,... Are selectively selected according to the electronic devices 71a, 71b to be cooled. Shall be provided.

  In the present embodiment according to the above configuration, a water-cooled air conditioner 81 is provided in the rack body 11 in which the electronic devices 71,... Are accommodated, and the air in the rack body 11 is It is circulated through the heat exchanger 101 by the fans 141 and 163 of the water-cooled air conditioner 81.

  At this time, the heat in the rack main body 11 generated from the electronic devices 71,... Is transferred to the cooling water circulating in the heat exchanger 101, and is discharged outside the rack main body 11 using the cooling water as a medium. .

  As described above, the heat generated from the electronic devices 71 in the rack body 11 can be discharged out of the rack body 11 by the cooling water circulating in the heat exchanger 101. As a result, by mounting the water-cooled air conditioner 81 on the rack body 11, the influence of the temperature outside the rack is minimized while the rack body 11 is kept in a sealed state, thereby stabilizing the temperature inside the rack. Can do.

  Accordingly, the temperature inside the rack body 11 is stabilized without being affected by the temperature outside the rack as compared to the conventional case where the temperature outside the rack is affected by the temperature outside the rack due to the structure in which the air outside the rack body 11 is taken in and cooled. Can be reduced.

  Further, the number of mounted electronic devices 71 can be increased as compared to the conventional case where the number of mounted electronic devices 71 is limited by the allowable temperature in the rack determined by the vent hole area, the performance of the fan motor, and the outside air temperature. .

  Then, by changing the cooling capacity of the water-cooled air conditioner 81 mounted in the rack body 11, heat generation larger than that of the air-cooling method can be processed. For this reason, the temperature rise in the rack main body 11 can be suppressed, and more electronic devices 71, ... can be mounted than the air cooling system.

  As shown on the left side in FIG. 3, the electronic device 71 mounted on the rack body 11 generally sucks air from the front surface 151 and passes it through, and then discharges it from the back surface 152. The water-cooled air conditioner 81 is disposed on the side of the rack body 11, and the air exhausted from the back surface 152 of the electronic equipment 71a,. Are taken in from 135,..., And the taken-in air is cooled by the heat exchanger 101 and supplied to the front side 151 of the electronic equipment 71a,. It is configured as follows. Further, the air supplied from the front side of the water-cooled air conditioner 81 is allowed to pass from the front surface 151 to the back surface 152 side of the electronic equipment 71a,. A first partial flow path 155 for returning to is formed.

  Therefore, the air supplied from the front side of the water-cooled air conditioner 81 is allowed to pass from the front surface 151 to the back surface 152 side of the electronic devices 71a,. The air heated by 71a,... Is taken in from the rear side of the water-cooled air conditioner 81, and the taken-in air is cooled by the heat exchanger 101 so that the electronic devices 71a,. By supplying the front surface 151 side, the air heated by the electronic devices 71a,... Is cooled by the water-cooled air conditioner 81 and supplied to the electronic devices 71a,. A circulation cycle can be formed within.

  Thereby, the stable cool air can be continuously supplied to the electronic devices 71a,... From which the air sucked from the front surface 151 is discharged from the back surface 152, and stable cooling performance can be maintained.

  On the other hand, as shown on the right side in FIG. 3, the electronic device 71 mounted on the rack body 11 is an electronic device 71 b that sucks air from the side surface 161 and passes it through the inside, and then discharges it from the back surface 162. The water-cooled air conditioner 81 is disposed on the side of the rack body 11, and takes in the air discharged from the back surface 162 of the electronic equipment 71b,. .. Are taken in from the ports 135,..., And the taken-in air is cooled by the heat exchanger 101 and supplied from the side supply ports 164,. Is configured to do. Further, the air supplied from the side of the water-cooled air conditioner 81 is passed from the side surface 161 to the back surface 162 of the electronic equipment 71b,. A second recirculation path 165 is set back.

  Therefore, the air supplied from the side of the water-cooled air conditioner 81 is allowed to pass from the side surface 161 to the back surface 162 side of the electronic device 71b,. ,... Is taken in from the rear side of the water-cooled air conditioner 81, and the taken-in air is cooled by the heat exchanger 101 so that the side surfaces of the electronic devices 71b,. In the rack body 11, the air heated by the electronic devices 71b,... Is cooled by the water-cooled air conditioner 81 and supplied to the electronic devices 71b,. A circulation cycle can be formed.

  As a result, even in the above-described electronic device 71b in which the air sucked from the side surface 161 is discharged from the back surface 162, it is possible to continuously supply stable cold air and maintain stable cooling performance. be able to.

  The rack body 11 has a mounting device mounting area 51 where the electronic devices 71,... Are mounted, a water-cooled air conditioner area 52 where the water-cooled air conditioner 81 is disposed, and a water-cooled type. An air conditioner maintenance area 53 is provided. For example, as stipulated in JIS standards and EIA standards, 19-inch mounting equipment is installed, doors are opened and closed, covers are removed, and wiring cables are routed into and out of the rack body. Cooling using the water-cooled air conditioner 81 can be performed without impairing the conventional rack function, such as wire, anchor installation, and caster attachment.

  At this time, by partitioning the water-cooled air conditioner area 52 as the mounting portion of the water-cooled air conditioner 81 and the mounting device mounting area 51 as the electronic device mounting portion with the partition plate 61, the heat exchanger 101 It can suppress that the air before cooling flows in into the said electronic device 71 ... side.

  Thereby, the cooling performance by the water-cooled air conditioner 81 can be maintained.

  In this rack body 11, it is necessary to close the opening that communicates the inside and the outside in order to stabilize the cooling performance. The rack body 11 has a top cover cable for routing the cable. A communication hole 42 and a bottom chassis cable connection port 22 are opened.

  However, in the present embodiment, a top cover wiring plate 43 that closes the top cover cable wiring hole 42 so as to be openable, and a bottom chassis wiring plate 23 that closes the bottom chassis cable wiring hole 22 so as to be openable. Inadvertent opening of the top cover cable passage hole 42 and the bottom chassis cable passage opening 22 can be prevented.

  For this reason, by providing the top cover wiring plate 43 and the bottom chassis wiring plate 23, it is possible to perform wiring in a state in which the opening is minimized and the sealing property is maintained. Cooling performance can be stabilized.

  On the other hand, the water-cooled air conditioner 81 is provided with a water supply joint 112 and a drainage joint 113 connected to the heat exchanger 101, and a cooling water pipe is attached and detached by these joints 112 and 113. Can do.

  Thereby, piping to the said heat exchanger 101 can be performed easily.

  Further, the water-cooled air conditioner 81 is detachably provided on the rack body 11, and the water-cooled air conditioner 81 can be attached to and detached from the rack body 11.

  Thereby, the water-cooled air conditioner 81 can be easily replaced at the time of capacity change or failure, and maintenance can be improved.

  The covers provided on the rack body 11, that is, the top cover 41, the top cover wiring plate 43, the side cover 31, the steel doors 34 and 34, and the water-cooled air conditioner 81 are: It has a heat insulation structure, and can suppress the influence of outside air temperature. Further, when the rack bodies 11 are connected to each other, heat conduction between the adjacent rack bodies 11 can be minimized.

  Thereby, the influence from the outside can be minimized and it can contribute to stabilization of internal temperature.

It is a figure which shows one embodiment of this invention. It is explanatory drawing which shows the inside of the same embodiment. It is explanatory drawing equivalent to the AA cross section of FIG. It is explanatory drawing which shows the internal state of the embodiment. It is a disassembled perspective view which shows the back side of the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic equipment accommodation rack 11 Rack main body 22 Bottom chassis cable wiring port 23 Bottom chassis wiring plate 31 Side cover 34 Steel door 41 Top cover 42 Top cover cable wiring hole 43 Top cover wiring plate 51 Mounting equipment mounting area 52 Water-cooled air conditioner area 53 Water-cooled air conditioner maintenance area 61 Partition plate 71 Electronic equipment 71a Electronic equipment 71b Electronic equipment 81 Water-cooled air conditioner 101 Heat exchanger 112 Water supply fitting 113 Drainage fitting 121 Water absorption pipe 122 Drainage pipe 135 Rear intake port 136 Front Part supply port 141 Front fan 151 Front 152 Back 155 First part flow path 161 Side 162 Back 163 Side fan 164 Side supply 165 Second circulation path

Claims (9)

In an electronic device housing rack in which a plurality of electronic devices are housed in the rack body,
A heat exchanger that circulates cooling water in the rack body and a fan that circulates air in the rack body through the heat exchanger, and cools the heat generated in the rack body in the heat exchanger. An electronic equipment housing rack provided with a water-cooled air conditioner that transfers to water and discharges heat in the rack body to the outside of the rack body using the cooling water as a medium. The water-cooled air conditioner is disposed on the left or right side of the rack body, and the air discharged from the back of the electronic device that sucks air from the front is taken in from the rear side of the water-cooled air conditioner. Cooled by an exchange and supplied from the front side of the water-cooled air conditioner to the front side of the electronic device,
It is characterized in that a recirculation path is formed in which air supplied from the front side of the water-cooled air conditioner is passed from the front side to the back side of the electronic device and returned to the rear side of the water-cooled air conditioner. The electronic device storage rack according to claim 1. The water-cooled air conditioner is arranged on the side of the rack body, and the air discharged from the back of the electronic device that draws air from the side is taken from the rear side of the water-cooled air conditioner and cooled by the heat exchanger. Supply from the side of the water-cooled air conditioner to the side of the electronic device,
A reflux path is configured to allow air supplied from the side of the water-cooled air conditioner to pass from the side surface to the back side of the electronic device and return to the rear side of the water-cooled air conditioner. The electronic device accommodation rack according to claim 1.   The rack body is partitioned into a mounting area where the electronic device is mounted, a water-cooled air conditioner area where the water-cooled air conditioner is disposed, and a water-cooled air conditioner maintenance area. Item 4. The electronic device storage rack according to Item 1, 2 or 3.   The electronic equipment storage rack according to claim 4, wherein the water-cooled air conditioner area and the mounting area are partitioned by a partition plate.   6. The electronic device housing rack according to claim 1, wherein a wiring plate is provided in a cable wiring hole that communicates the rack body with the outside.   The electronic equipment storage rack according to any one of claims 1 to 6, wherein a joint to which a pipe for cooling water is detachably connected is provided in the heat exchanger of the water-cooled air conditioner.   The electronic equipment storage rack according to claim 1, wherein the water-cooled air conditioner is detachably provided on the rack body.   The electronic device housing rack according to claim 1, wherein the cover provided on the rack body and the water-cooled air conditioner have a heat insulating structure.

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