JP2007272293A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment allowing electronic equipment disposed within a rack to be efficiently cooled. <P>SOLUTION: The electronic equipment 10 includes a guide rail device 20 and a side wall opening part 18 provided on a casing side wall 14, and the guide rail device 20 includes an inner rail fixed to the casing side wall 14 and an outer rail for freely inserting the inner rail. The outer rail includes a guide part to which the inner rail is freely inserted, and a cooling passage part of a recessed cross sectional shape provided in parallel to the vertical direction of the guide part and opened toward the casing side wall 14 so as to be capable of passing air from the front side to the back side. The outer rail is provided so that the cooling passage part is opposed to the side wall opening part 18, whereby ventilation between the cooling passage part and the casing 12 can be performed through the side wall opening part 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electronic device, and more particularly to an electronic device that is housed in a rack.

  Servers used in information system departments, data centers, and the like are mainly rack-mounted servers that can efficiently accommodate a large number of servers.

  For example, EIA (Electronic Industries Alliance) defines TIA / EIA-310-D as a standard for rack mount servers (hereinafter referred to as “rack mount servers”).

  The TIA / EIA-310-D has a 19-inch width between the left and right fixing rails inside a rack (hereinafter referred to as a “server rack”) that houses a rack-mount server. This is defined as 1.75 inches. Note that TIA / EIA-310-D does not specify the depth. Server racks conforming to TIA / EIA-310-D are also commonly referred to as 19-inch racks.

  For example, a rack mount server to be mounted on a 19-inch rack has a total width of 19 inches by adding a fixing panel for fixing to a 19-inch rack on the left and right of the front panel of the server body. It is fixed to a 19-inch rack by screwing or the like.

  There are two types of server racks: a cabinet type in which the entire upper, lower, left and right sides are covered with panels, and a table type that is partially or entirely not covered with panels. Among these, cabinet racks that excel in server storage, soundproofing, electromagnetic wave shielding, and the like are used as racks for storing a large number of servers used in information system departments and data centers.

  When the rack mount server is operated, the mounted electronic components generate heat. For this reason, a cabinet-type rack is usually provided with a fan that introduces air for cooling the rack mount server into the rack and a fan that discharges the warmed air.

  In recent years, rack mount servers have a longer depth and higher heat generation due to high-density mounting of electronic components. When an electronic device such as a rack mount server is used at a high temperature, the life of the electronic device is shortened. Therefore, cooling of the rack mount server is a big problem.

  However, the conventional rack mount server is cooled by introducing air from an opening provided in a small space in the front panel of the rack mount server where no CD drive, HDD, or the like is disposed. For this reason, the amount of air taken into the rack mount server is not sufficient, and furthermore, the taken-in air is heated inside the server before reaching the heat generating member such as the CPU. It may not be possible to cool down.

  On the other hand, the following prior art is disclosed.

Patent Document 1 (Japanese Patent Laid-Open No. 2004-23036) discloses a cooling device provided in an electronic equipment storage rack in which electronic equipment is placed on a plurality of shelves arranged at intervals in the vertical direction. A cooling device is disclosed that includes a duct provided in the vertical direction, a fan that blows cool air into the duct, and a nozzle that is arranged for each shelf.
Japanese Patent Laid-Open No. 2004-23036

  The cooling device described in Patent Document 1 has a problem in that the electronic devices cannot be densely accommodated in the rack because it is necessary to arrange the nozzles between the electronic devices arranged above and below.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an electronic device that can efficiently cool an electronic device arranged in a rack.

  An electronic device according to the present invention solves the above-described problem, and includes a guide rail device and a side wall opening on a housing side wall, and the guide rail device includes an inner rail fixed to the housing side wall, It consists of an outer rail that loosely inserts this inner rail, and this outer rail is provided in parallel with the guide portion into which the inner rail is loosely inserted and the vertical direction of this guide portion, and can ventilate from the front side to the back side And a cooling channel portion having a concave cross-sectional shape opened to the side wall of the housing, and the outer rail is provided so that the cooling channel portion faces the side wall opening, The flow path part and the inside of the housing are made to be ventilated through the side wall opening part.

  Since the electronic device according to the present invention can vent the side surface of the electronic device, the electronic device arranged in the rack is efficiently cooled.

  Embodiments of an electronic device according to the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a perspective view showing an external appearance of a first embodiment 10 of an electronic apparatus according to the present invention. FIG. 2 is a perspective view showing a simplified internal structure of the first embodiment 10 of the electronic apparatus according to the invention. FIG. 2 shows a state in which a part of the electronic device 10 is broken and the housing top panel 27 is removed.

  The electronic device 10 shown in FIG. 1 is an example of a rack server that can be installed in a cabinet type server rack, but the electronic device 10 may be a rack server that can be installed in a server rack other than the cabinet type. A server other than a rack server, or an electronic device such as an acoustic device other than the server may be used.

  The electronic device 10 includes an electronic device main body 11 and a guide rail device 20.

  In the electronic device main body 11, an insertion type HDD (hard disk drive) 55, FDD (floppy (registered trademark) disk drive) 56, CD (compact disk) drive 57, and tape device 58 are arranged on the front panel 13 of the housing 12. Has been.

  The front panel 13 is provided with a front opening 17 for taking in air for cooling the inside of the housing 12.

  The front opening 17 is provided in a space in the front panel 13 where the HDD 55, FDD 56, CD drive 57, and tape device 58 are not arranged.

  Note that the electronic device 10 can introduce air into the housing 12 via the guide rail device 20, and thus may be configured without the front opening 17 as appropriate.

  The electronic device main body 11 has heating elements 50, 50 such as a CPU, for example, inside the housing 12. The number of heating elements 50 of the electronic device 10 is not limited to two, and may be one or three or more.

  The electronic device main body 11 has a back fan 51 that discharges the warmed air inside the housing 12 to the outside of the housing 12 via the back panel 15 on the back panel 15 of the housing 12.

  The electronic device 10 includes a guide rail device 20 and a side wall opening 18 on the side wall 14 of the housing 12.

  The side wall opening 18 is a through hole provided in the side wall 14 of the housing 12 and allows ventilation between the inside of the housing 12 and the cooling flow path portion 33 of the guide rail device 20.

  In FIG. 1, the side wall opening 18 is provided at one location on each of the left and right side walls 14, 14. However, a plurality of locations may be provided on the left and right side walls 14, 14 as appropriate. It is good also as a structure which provides only one place in the side wall 14.

  The guide rail device 20 will be described with reference to the drawings. FIG. 3 is a perspective view showing the guide rail device 20. FIG. 4 is a cross-sectional view showing a part of a cross section taken along the line AA of FIG.

  The guide rail device 20 includes an inner rail 21 fixed to the housing side wall 14 and an outer rail 30 into which the inner rail 21 is loosely inserted.

  The inner rail 21 engages with the guide portion 32 of the outer rail 30, slides, and can be stored in the outer rail 30.

  The inner rail 21 has a flat inner rail main body 22 and first and second guide pieces 23 and 24 of the inner rail protruding from the inner rail main body 22.

  The first guide piece 23 protrudes in a shape bent downward from the lower side of the inner rail body 22 to the side surface, and the second guide piece 24 protrudes in a shape bent upward from the upper side of the inner rail body 22 to the side surface. .

  The first guide piece 23 has a C-shaped cross section opened downward, and a sliding groove 25 is formed in the C-shaped recess. The second guide piece 24 has a C-shaped cross section opened upward, and a sliding groove 26 is formed in the C-shaped recess.

  Since the first guide piece 23 and the second guide piece 24 have a C-shaped cross section, the inner rail 21 has a π-shaped cross section.

  In addition, the inner rail 21 should just be a shape which can be loosely inserted in the guide part 32 of the outer rail 30, and is not limited to the shape as shown in FIG.

  The inner rail 21 is fixed to the side wall 14 of the housing 12 by, for example, screwing or bonding.

  The outer rail 30 includes a guide portion 32 into which the inner rail 21 is loosely inserted, and a cooling flow path portion 33 provided in parallel with the vertical direction of the guide portion 32.

  The guide part 32 protrudes from the flat outer rail body 31, the first guide piece 34 of the outer rail protruding from the lower part of the surface of the outer rail body 31, and the middle part of the surface of the outer rail body 31. And a second guide piece 35 of the outer rail.

  The first guide piece 34 has an L-shaped cross section, and has a bottom surface portion 34a projecting vertically from a lower portion of the surface of the outer rail body 31, and is bent in a direction perpendicular to the bottom surface portion 34a and extends upward. It is comprised from the provided front-end | tip part 34b.

  The second guide piece 35 has an L-shaped cross section, and a top surface portion 35a projecting vertically from the middle of the surface of the outer rail body 31, and a second surface bent from the top surface portion 35a in a right angle direction and extends downward. It is comprised from the provided front-end | tip part 35b.

  The distal end portion 34b of the first guide piece 34 and the distal end portion 35b of the second guide piece 35 are formed to face each other, and the guide is provided in a portion surrounded by the outer rail main body 31, the first guide piece 34, and the second guide piece 35. A space 36 is formed.

  In the guide portion 32 of the outer rail 30, the sliding groove 25 of the inner rail 21 is engaged with the distal end portion 34b of the first guide piece 34, and the sliding groove 26 of the inner rail 21 is engaged with the distal end portion 35b of the second guide piece 35. By engaging, the inner rail 21 is loosely inserted.

  In addition, the guide part 32 of the outer rail 30 should just be a shape which can insert the inner rail 21 loosely, and is not limited to the shape as shown in FIG.

  When the inner rail 21 is partially protruded from the state illustrated in FIG. 1 in which the inner rail 21 is accommodated in the outer rail 30, the electronic device 10 is in a state illustrated in FIG. 2, for example.

  The cooling flow path portion 33 protrudes in a L-shaped cross section from the flat outer rail body 31, the flange 41 protruding from the upper part of the surface of the outer rail body 31, and the middle part of the surface of the outer rail body 31. And an outer rail second guide piece 35 provided.

  The cooling flow path portion 33 has a cooling flow path 42 having a concave cross section that is open to the housing side wall 14 at a portion surrounded by the outer rail main body 31, the flange portion 41, and the second guide piece 35.

  Air that is introduced into the housing 12 or discharged from the housing 12 to cool the inside of the housing 12 can flow through the cooling channel 42.

  The flange 41 has a length from the surface of the outer rail body 31 to the tip of the flange 41, a length from the surface of the outer rail body 31 to the tip 35 b of the second guide piece 35, and the inner rail body 22. It is almost the same as the total thickness.

  Since the length of the flange portion 41 is as described above, the distal end portion of the flange portion 41 is positioned in the vicinity of the housing side wall 14 in a state where the inner rail 21 is stored in the outer rail 30. .

  Since the distal end portion of the flange portion 41 is positioned in the vicinity of the housing side wall 14, the cooling channel 42 having a concave cross section that opens to the housing side wall 14 side is substantially surrounded by the housing side wall 14. A space surrounded by four sides is formed, so that the electronic device 10 can be ventilated from the front side to the back side.

  The outer rail 30 is provided so that the cooling flow path portion 33 faces the side wall opening 18. Here, the cooling flow path portion 33 faces the side wall opening 18 is in a positional relationship in which air can be exchanged between the cooling flow path 42 formed in the cooling flow path portion 33 and the side wall opening 18. Means that. FIG. 4 shows an example of a positional relationship in which the cooling flow path portion 33 faces the side wall opening 18.

  The outer rail 30 can be fixed to the server rack. The outer rail 30 is provided with a rack mounting portion 38 that can be engaged with a rack column erected in the server rack on each of the front side and the back side. The rack mounting portion 38 is formed with a rack mounting hole 39.

  FIG. 6 is a perspective view illustrating a state in which the outer rail 30 of the guide rail device 20 is attached to the server rack. FIG. 7 is a perspective view illustrating a state in which the electronic device 10 is attached to the server rack.

  The server rack 70 is a box-shaped cabinet including a top plate 71, a side plate 72, a bottom plate 73, a side plate 74, a front door 75 and a rear door 76, and is erected from four corners of the bottom plate 73 inside the server rack 70. Rack support 77, 77, 77, 77 of the book is provided.

  The rack column 77 is provided with a plurality of rack column holes 78, and the outer rail 30 is spanned between two rack columns 77, 77 arranged in the depth direction. The outer rail 30 can be fixed to the server rack 70 by fixing the column holes 78 and 78 and the rack mounting holes 39 and 39 before and after the outer rail 30 with bolts 40 and 40, respectively. ing.

  When the inner rail 21 fixed to the housing side wall 14 is inserted into the guide portion 32 of the outer rail 30 fixed to the server rack 70 and is slid and housed, as shown in FIG. Fixed to the server rack 70.

  Although FIG. 7 shows a state in which only one electronic device 10 is fixed to the server rack 70, a plurality of electronic devices 10 can be arranged and fixed so as to be stacked in the vertical direction of the server rack 70.

  The server rack 70 is appropriately provided with a fan for introducing air into the server rack 70 and a fan for discharging air from the server rack 70.

  Next, the operation of the electronic device 10 will be described. FIG. 8 is an enlarged perspective view showing the electronic device 10. FIG. 9 is a perspective view for explaining the operation of the electronic device 10. 8 and 9 are shown with the housing top panel 27 removed.

  First, when the rear fan 51 shown in FIG. 9 is operated due to the electronic device 10 being used and the heating elements 50, 50, etc. generating heat, the air in the casing 12 is discharged from the rear fan 51 to the outside of the casing 12. (Arrow Z).

  When the air in the housing 12 is discharged to the outside of the housing 12, the inside of the housing 12 becomes negative pressure, so that air is introduced from the outside of the housing 12 through the front opening 17 of the front panel 13. (Arrow X, Arrow Y).

  When the inner rail 21 is accommodated in the guide portion 32 of the outer rail 30, in addition to the introduction of air from the front opening 17 (arrow X, arrow Y), the cooling channel portion 33 of the guide rail device 20 Air is introduced from the front side (arrow P), and air is discharged from the back side of the cooling flow path portion 33 of the guide rail device 20 (arrow S).

  When air passes through the cooling flow path portion 33 of the guide rail device 20 in the direction of the arrow P to the arrow S, if the negative pressure in the housing 12 is larger than the negative pressure in the cooling flow path portion 33, the side wall Air is introduced into the housing 12 from the cooling flow path portion 33 through the opening 18 (arrow Q).

  On the other hand, when the air passes through the cooling flow path portion 33 of the guide rail device 20 in the direction of the arrow P to the arrow S, the negative pressure in the housing 12 is smaller than the negative pressure in the cooling flow path portion 33. Then, air is discharged from the housing 12 into the cooling flow path portion 33 through the side wall opening 18 (arrow R).

  Usually, since the negative pressure in the housing 12 is larger than the negative pressure in the cooling flow path portion 33, the air in the cooling flow path portion 33 of the guide rail device 20 is introduced into the housing 12 (arrow). Q).

  However, for example, when an internal fan (not shown) that enhances the introduction of air from the front opening 17 is attached in the vicinity of the front panel 13 in the housing 12, the negative pressure in the housing 12 is more cooled by the negative pressure in the housing 12. The negative pressure in the portion 33 may become smaller, and the air in the housing 12 may be discharged to the cooling flow path portion 33 (arrow R).

  According to the electronic device 10, since the side surface of the electronic device can be ventilated using the space on the side surface of the electronic device arranged in the rack, the cooling efficiency is improved and the electronic device is improved as compared with the electronic device that cannot vent the side surface. The space on the side of the equipment can be used effectively.

[Second Embodiment]
Next, a second embodiment of the electronic apparatus according to the invention will be described with reference to FIGS.

  FIG. 10 is an enlarged perspective view showing a second embodiment 10A of the electronic apparatus according to the present invention. FIG. 10 is shown with the housing top panel 27 removed.

  In the electronic device 10A, the guide rail device 20 is replaced with a guide rail device 20A in which a partition valve 48A is provided in the cooling flow path portion 33 of the outer rail 30 with respect to the electronic device 10 shown in the first embodiment. Since the points are different and the other points are the same, the same symbols are attached to the same members, and the description is simplified or omitted.

  20 A of guide rail apparatuses are comprised from the inner rail 21 fixed to the housing | casing side wall 14, and the outer rail 30A which inserts the inner rail 21 loosely.

  The outer rail 30A includes a guide portion 32 into which the inner rail 21 is loosely inserted, a cooling passage portion 33 provided in parallel with the vertical direction of the guide portion 32, and a gate valve 48A provided in the cooling passage portion 33. Have

  The gate valve 48A has the inner rail 21 stored in the guide portion 32 of the outer rail 30A, and is located on the back side of the cooling channel portion 33 in the cooling channel portion 33 from the position facing the side wall opening 18 in the cooling channel portion 33. Provided to block ventilation.

  For example, the gate valve 48A is fixed to the outer rail body 31, the flange 41, the second guide piece 35, or the like of the outer rail 30A by screws or the like (not shown).

  Next, the operation of the electronic apparatus 10A will be described with reference to FIGS. FIG. 11 is a perspective view for explaining the operation of the second embodiment 10A of the electronic apparatus according to the invention. FIG. 11 shows the housing with the top panel 27 removed.

  First, when the electronic device 10A is used and the rear fan 51 shown in FIG. 11 is operated due to heat generated by the heating elements 50, 50, etc., the air in the housing 12 is discharged from the rear fan 51 to the outside of the housing 12. (Arrow Z).

  When the air in the housing 12 is discharged to the outside of the housing 12, the inside of the housing 12 becomes negative pressure, so that air is introduced from the outside of the housing 12 through the front opening 17 of the front panel 13. (Arrow X, Arrow Y).

  When the inner rail 21 is housed in the guide portion 32 of the outer rail 30A, in addition to the introduction of air from the front opening 17 (arrow X, arrow Y), the cooling channel portion 33 of the guide rail device 20A Air is introduced from the front side (arrow P).

  The air introduced into the cooling flow path portion 33 is blocked by the gate valve 48A from the back side of the cooling flow path portion 33 of the guide rail device 20A, and almost all of the introduced air passes through the side wall opening 18. Thus, air is introduced from the cooling flow path portion 33 into the housing 12 (arrow Q).

  The air introduced from the inside of the cooling flow path portion 33 into the housing 12 is discharged from the rear fan 51 to the outside of the housing 12 together with the air (arrow X and arrow Y) introduced from the front opening 17 (arrow). Z).

  According to the electronic device 10A, air can be introduced into the housing from the front side of the side surface of the electronic device using the space on the side surface of the electronic device arranged in the rack. The cooling efficiency is improved as compared with the device, and the space on the side surface of the electronic device can be effectively utilized.

[Third Embodiment]
Next, a third embodiment of the electronic apparatus according to the invention will be described with reference to FIG. FIG. 12 is an enlarged perspective view showing a third embodiment 10B of the electronic apparatus according to the present invention. FIG. 12 is shown with the housing top panel 27 removed.

  In the electronic device 10B, the guide rail device 20A is replaced with a guide rail device 20B in which a fan 49A is further provided in the cooling flow path portion 33 of the outer rail 30 with respect to the electronic device 10A shown in the second embodiment. Since the points are different and the other points are the same, the same symbols are attached to the same members, and the description is simplified or omitted.

  The guide rail device 20B includes an inner rail 21 fixed to the housing side wall 14 and an outer rail 30B into which the inner rail 21 is loosely inserted.

  The outer rail 30B includes a guide part 32 into which the inner rail 21 is loosely inserted, a cooling channel part 33 provided in parallel with the vertical direction of the guide part 32, and a gate valve 48A provided in the cooling channel part 33. And a fan 49A provided in the cooling flow path portion 33.

  The fan 49A has a suction port 45A that sucks air from the side of the fan 49A and a discharge port 46A that discharges air from the front of the fan 49A.

  The fan 49A has the discharge port 46A of the fan 49A and the side wall opening 18 at a position substantially opposite to the side wall opening 18 in the cooling flow path portion 33 with the inner rail 21 housed in the guide portion 32 of the outer rail 30B. The air flow from the cooling channel 33 to the side wall opening 18 is urged toward the front.

  That is, the fan 49 </ b> A is arranged with the suction port 45 </ b> A facing the front side of the cooling flow path 33 and the discharge port 46 </ b> A facing the side wall opening 18.

  The fan 49A is fixed to the outer rail body 31 of the outer rail 30B, the flange 41, the second guide piece 35, or the like with screws (not shown), for example.

  In the operation of the electronic device 10B, in the operation of the electronic device 10A, the ventilation of the cooling flow path portion 33 to the back side is obstructed by the gate valve 48A, and the housing 12 from the cooling flow passage portion 33 is passed through the side wall opening 18. Since the air indicated by the arrow Q introduced therein is the same except that it is urged by the fan 49A, the description thereof is omitted.

  According to the electronic device 10B, air is strongly introduced from the front side of the side surface of the electronic device into the casing using the space on the side surface of the electronic device arranged in the rack, and thus the side surface cannot be ventilated. The cooling efficiency is improved as compared with the electronic device and the space on the side surface of the electronic device can be effectively utilized.

[Fourth Embodiment]
Next, a fourth embodiment of the electronic apparatus according to the invention will be described with reference to FIGS.

  FIG. 13 is an enlarged perspective view showing a fourth embodiment 10C of the electronic apparatus according to the present invention. FIG. 13 shows the housing with the top panel 27 removed.

  In the electronic device 10C, the guide rail device 20 is replaced with a guide rail device 20C in which a partition valve 48B is provided in the cooling flow path portion 33 of the outer rail 30 with respect to the electronic device 10 shown in the first embodiment. Since the points are different and the other points are the same, the same symbols are attached to the same members, and the description is simplified or omitted.

  The guide rail device 20 </ b> C includes an inner rail 21 fixed to the housing side wall 14 and an outer rail 30 </ b> C into which the inner rail 21 is loosely inserted.

  The outer rail 30C includes a guide portion 32 into which the inner rail 21 is loosely inserted, a cooling flow path portion 33 provided in parallel with the vertical direction of the guide portion 32, and a gate valve 48B provided in the cooling flow path portion 33. Have

  The gate valve 48B has the inner rail 21 housed in the guide portion 32 of the outer rail 30C, and is located on the front side with respect to the side wall opening 18 in the cooling flow passage portion 33, in the cooling flow passage portion 33. Provided to block ventilation.

  The gate valve 48B is fixed to the outer rail main body 31, the flange 41, the second guide piece 35, or the like of the outer rail 30C with screws or the like (not shown), for example.

  Next, the operation of the electronic device 10C will be described with reference to FIGS. FIG. 14 is a perspective view for explaining the operation of the fourth embodiment 10C of the electronic device according to the present invention. FIG. 14 shows the housing with the top panel 27 removed.

  First, when the electronic device 10C is used and the rear fan 51 shown in FIG. 14 is operated due to heat generated by the heating elements 50, 50, etc., the air in the housing 12 is discharged from the rear fan 51 to the outside of the housing 12. (Arrow Z).

  When the air in the housing 12 is discharged to the outside of the housing 12, the inside of the housing 12 becomes negative pressure, so that air is introduced from the outside of the housing 12 through the front opening 17 of the front panel 13. (Arrow X, Arrow Y).

  In addition, since the gate valve 48 </ b> B is installed in the cooling flow path portion 33, air is not introduced from the front side of the cooling flow path portion 33.

  When the inner rail 21 is housed in the guide portion 32 of the outer rail 30C, the air in the housing 12 is not discharged from the rear fan 51 indicated by the arrow Z to the outside of the housing 12, but the side wall opening 18 is provided. Then, the air is discharged from the housing 12 into the cooling flow path portion 33 (arrow R), and the air is discharged from the back side of the cooling flow path portion 33 (arrow S).

  According to the electronic device 10C, the air in the housing can be discharged from the back side of the side surface of the electronic device using the space on the side surface of the electronic device arranged in the rack. The cooling efficiency is improved as compared with the device, and the space on the side surface of the electronic device can be effectively utilized.

[Fifth Embodiment]
Next, a fifth embodiment of the electronic apparatus according to the invention will be described with reference to FIG. FIG. 15 is an enlarged perspective view showing a fifth embodiment 10D of the electronic apparatus according to the invention. FIG. 15 is shown with the housing top panel 27 removed.

  In the electronic device 10D, the guide rail device 20C is replaced with a guide rail device 20D in which a fan 49B is further provided in the cooling flow path portion 33 of the outer rail 30 with respect to the electronic device 10C shown in the fourth embodiment. Since the points are different and the other points are the same, the same symbols are attached to the same members, and the description is simplified or omitted.

  The guide rail device 20 </ b> D includes an inner rail 21 fixed to the housing side wall 14 and an outer rail 30 </ b> D into which the inner rail 21 is loosely inserted.

  The outer rail 30D includes a guide portion 32 into which the inner rail 21 is loosely inserted, a cooling passage portion 33 provided in parallel with the vertical direction of the guide portion 32, and a gate valve 48B provided in the cooling passage portion 33. And a fan 49B provided in the cooling flow path portion 33.

  The fan 49B has a suction port 45B that sucks air from the front of the fan 49B and a discharge port 46B that discharges air from the side surface of the fan 49A.

  The fan 49B has the inlet 45B of the fan 49B and the side wall opening 18 at a position substantially opposite to the side wall opening 18 in the cooling flow path portion 33 in a state where the inner rail 21 is housed in the guide portion 32 of the outer rail 30D. The air flow from the side wall opening 18 to the cooling flow path 33 is urged toward the front.

  That is, the fan 49B is arranged with the suction port 45B facing the side wall opening 18 and the discharge port 46B facing the back side of the cooling flow path unit 33.

  The fan 49B is fixed to the outer rail body 31 of the outer rail 30D, the flange 41, the second guide piece 35, or the like with screws (not shown), for example.

  In the operation of the electronic device 10D, in the operation of the electronic device 10C, ventilation of the cooling flow path portion 33 from the front side is obstructed by the gate valve 48B, and the cooling flow path portion 33 is formed from the inside of the housing 12 through the side wall opening 18. Since the air indicated by the arrow R exhausted inside is the same except that it is urged by the fan 49B, the description thereof is omitted.

  According to the electronic device 10D, the air in the housing can be exhausted from the back side of the side surface of the electronic device using the space on the side surface of the electronic device arranged in the rack, and thus the ventilation of the side surface The cooling efficiency is improved as compared with an electronic device that cannot be used, and the space on the side surface of the electronic device can be used effectively.

[Sixth Embodiment]
Next, with reference to FIG. 10, FIG. 11, FIG. 13 and FIG. 14, a sixth embodiment 10E of the electronic apparatus according to the present invention will be described.

  In the electronic device 10E shown in the second embodiment, the electronic device 10E uses the gate valve 48A as a gate valve 48C that is movable in the cooling flow path section 33, and the mounting position of the gate valve 48C is the mounting position of the gate valve 48A. The difference between the position and the mounting position of the gate valve 48B of the electronic device 10C shown in the fourth embodiment is different, and the other points are the same. Therefore, the description is simplified or omitted.

  The gate valve 48C is a gate valve provided so as to be movable in the cooling channel portion 33 and to block the ventilation in the cooling channel portion 33. The gate valve 48C of the electronic device 10A shown in the second embodiment is used. It is made possible to select between the attachment position of the gate valve 48A and the attachment position of the gate valve 48B of the electronic apparatus 10C shown in the fourth embodiment.

  For example, the gate valve 48C is provided with a screw hole corresponding to the mounting position of the gate valve 48B in the outer rail body 31, the flange 41, the second guide piece 35, or the like of the outer rail 30A. The attachment position can be selected between the position and the attachment position of the gate valve 48B.

  At this time, for example, a dummy screw is inserted into the screw hole where the gate valve 48C is not attached so that air does not leak.

  The electronic device 10E is configured such that the gate valve 48C is movable in the cooling flow path portion 33, so that the electronic device 10A shown in the second embodiment or the electronic device 10C shown in the fourth embodiment is used. Any of these can be arbitrarily selected. Since the operation of the electronic device 10E is the same as either the operation of the electronic device 10A or the operation of the electronic device 10C, description thereof is omitted.

  Note that the electronic device 10E further includes a fan 49A of the electronic device 10B shown in the third embodiment or the electronic device 10D shown in the fifth embodiment in the cooling flow path portion 33 of the outer rail 30. The fan 49B may be provided.

  The operation of the embodiment in which the fan 49A is provided in the electronic device 10E is the same as the operation of the electronic device 10B shown in the third embodiment, and the operation of the embodiment in which the fan 49B is provided in the electronic device 10E is the fifth operation. Since it is the same as the effect | action of electronic device 10D shown by embodiment, description is abbreviate | omitted.

  According to the electronic device 10E, air is introduced into the housing from the front side of the side surface of the electronic device using the space on the side surface of the electronic device disposed in the rack, or the air in the housing is removed from the electronic device. Since it is possible to arbitrarily select the discharge from the back side of the side surface, the cooling efficiency is improved as compared with the electronic device that cannot vent the side surface, and the space on the side surface of the electronic device can be effectively used.

1 is a perspective view showing an appearance of a first embodiment of an electronic apparatus according to the present invention. The perspective view which simplifies and shows the internal structure of 1st Embodiment of the electronic device which concerns on this invention. The perspective view which shows a guide rail apparatus. Sectional drawing which shows a part of cross section along the AA line of FIG. 1 is a perspective view showing an appearance of a first embodiment of an electronic apparatus according to the present invention. The perspective view which shows a mode that the outer rail of the guide rail apparatus was attached to the server rack. The perspective view which shows a mode that 1st Embodiment of the electronic device which concerns on this invention was attached to the server rack. 1 is an enlarged perspective view showing a first embodiment of an electronic apparatus according to the present invention. The perspective view explaining the effect | action of 1st Embodiment of the electronic device which concerns on this invention. The expansion perspective view which shows 2nd Embodiment of the electronic device which concerns on this invention. The perspective view explaining the effect | action of 2nd Embodiment of the electronic device which concerns on this invention. The expansion perspective view which shows 3rd Embodiment of the electronic device which concerns on this invention. The expansion perspective view which shows 4th Embodiment of the electronic device which concerns on this invention. The perspective view explaining the effect | action of 4th Embodiment of the electronic device which concerns on this invention. The expansion perspective view which shows 5th Embodiment of the electronic device which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electronic device 11 Electronic device main body 12 Case 13 Case front panel 14 Case side wall 15 Case back panel 16 Case bottom plate 17 Front opening 18 Side wall opening 19 Back opening 20 Guide rail device 21 Inner rail 22 Inner rail Main body 23 First guide piece 24 of inner rail Second guide piece 25 of inner rail Slide groove 26 of first guide piece of inner rail Slide groove 27 of second guide piece of inner rail Case top panel 30 Outer rail 31 Outer rail body 32 Guide portion 33 Cooling channel portion 34 Outer rail first guide piece 34a Outer rail first guide piece bottom surface portion 34b Outer rail first guide piece tip 35 Outer rail second guide piece 35a Top surface portion 35b of the second guide piece of the outer rail Second guide of the outer rail One end portion 36 Guide space 38 Rack mounting portion 39 of outer rail Rack mounting hole 40 Bolt 41 Cooling channel flange 42 Cooling channel 45A, 45B Fan inlet 46A, 46B Fan outlet 48A, 48B Gate valve 49A, 49B, 49C Fan 50 Heat generating device 51 Rear fan 55 HDD (Hard disk drive)
56 FDD (floppy disk drive)
57 CD (Compact Disc) Drive 58 Tape Device 70 Server Rack 71 Top Plate 72, 74 Side Plate 73 Bottom Plate 75 Front Door 76 Rear Door 77 Rack Post 78 Rack Post Hole

Claims (8)

Provided with a guide rail device and a side wall opening on the side wall of the housing,
The guide rail device includes an inner rail fixed to the side wall of the housing and an outer rail that loosely inserts the inner rail.
The outer rail is provided with a guide portion into which the inner rail is loosely inserted, and a concave in cross section that is provided in parallel to the vertical direction of the guide portion and is ventilated from the front side to the back side and opened to the side wall of the housing A cooling channel portion having a letter shape,
The outer rail is provided so that the cooling flow path portion faces the side wall opening, and the cooling flow path and the inside of the housing can be vented through the side wall opening. Electronics. The electronic device according to claim 1, wherein an outer rail of the electronic device is fixed to a rack. The outer rail is a gate valve that shuts off the air flow in the cooling flow path portion on the back side from the position facing the side wall opening in the cooling flow path portion in a state where the inner rail is housed in the guide portion. The electronic apparatus according to claim 1, wherein the electronic apparatus is provided. The outer rail is a gate valve that shuts off ventilation in the cooling flow path portion on the front side from a position facing the side wall opening in the cooling flow path portion in a state where the inner rail is housed in the guide portion. The electronic apparatus according to claim 1, wherein the electronic apparatus is provided. The electronic device according to claim 1, wherein the outer rail is provided with a movable partition valve in the cooling flow path portion that blocks ventilation in the cooling flow path portion. The outer rail attaches ventilation from the cooling channel to the side wall opening at a position substantially opposite to the side wall opening in the cooling channel with the inner rail stored in the guide. 6. The electronic apparatus according to claim 1, further comprising a fan for energizing. The outer rail attaches ventilation from the side wall opening to the cooling channel at a position substantially opposite to the side wall opening in the cooling channel with the inner rail stored in the guide. 6. The electronic device according to claim 1, further comprising a fan for energizing the electronic device. The electronic apparatus according to claim 1, wherein a front opening is provided on a front surface of the housing.

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