JP2013070619A - Cable duct and electronic device system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a length of a cable connecting units of an electronic device to be an optimum cable length.SOLUTION: A cable duct 20 passing through cables 9a and 9b connected to respective units 7 and 7 inside an electronic device 1a, and a cable duct 20 passing through an electronic device 1b are arranged. Cables 9a and 9b which are installed in the electronic device 1b adjacent to the electronic device 1a, pass from the cable duct 20 of the electronic device 1a, and connect the electronic devices 1a and 1b are set to be optimum. Cables 9a to 9d of the units 7 and 7 are dispersed in two directions so as to wire them.

Description

  The present invention relates to a cable duct, an electronic device system, and a cable duct system.

  Conventionally, a computer system (hereinafter referred to as an “electronic device system”) that connects a plurality of electronic devices with cables is known.

  In the case of such a conventional electronic device system, it is possible to connect a plurality of units housed in a plurality of adjacent electronic devices with a plurality of cables and to cooperate with the plurality of units, thereby achieving high processing capability. Is demonstrated.

JP 62-011300 A Japanese Patent Laid-Open No. 07-212469

  However, in the case of the above-described conventional electronic device system, all the cables connecting the units between the plurality of electronic devices are all inside the electronic device regardless of the positions of the units arranged in the upper or lower stage in the storage unit. Use the cable passage provided in.

  In addition, all the plurality of cables are passed through the cable passage portion to the passage portion under the floor, and through the cable passage portion in the connection destination electronic device through the passage portion under the floor. Connect to the unit.

  Therefore, it is necessary to provide a large-scale cable passage portion that allows all cables to pass inside the electronic device, which becomes a factor that hinders high density in the electronic device. Further, since the total length of the cable itself is increased, there are problems that the component cost, the assembly cost of the device, and the arrangement cost of the device are increased, and the transmission speed of the signal data is lowered and the performance of the entire system is lowered. Further, there is a problem that the cable wiring performance is poor at the time of cable connection work, and the work man-hour of the whole work increases.

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and a cable duct and an electronic device system capable of setting the length of a cable connecting the units of the electronic device to an optimum cable length. Another object of the present invention is to provide a method for replacing a housing in a cable duct system and an electronic device system.

  The disclosed invention is mounted on a cable duct that passes through a cable connected to a first electronic device and a second electronic device that is disposed adjacent to the first electronic device, and the cable of the first electronic device. It is a requirement that a cable routed from the duct is provided with a cable duct routed to the second electronic device.

  According to the disclosed invention, the length of the cable connecting the unit provided in the first electronic device and the unit provided in the second electronic device adjacent to the first electronic device is optimal. Can be cable length.

FIG. 1 is a diagram illustrating a configuration of an electronic device according to an example of the first embodiment. FIG. 2 is a diagram illustrating the inside of the electronic device according to the example of the first embodiment. FIG. 3 is a diagram showing the configuration of the cable duct. FIG. 4 is a view showing the inside of the cable duct. FIG. 5A is an enlarged view showing the pedestal of the cable duct. FIG. 5-2 is an enlarged view showing details of FIG. 5-1. FIG. 6 is an enlarged view showing a pedestal of the electronic device. FIG. 7 is a diagram for explaining an electronic device system using a plurality of electronic devices. FIG. 8 is a diagram illustrating a configuration of an electronic device system according to an example of the second embodiment. FIG. 9 is an exploded view showing the configuration of the cable duct. FIG. 10 is a perspective view showing the configuration of the bridge of the cable duct. FIG. 11A is a top view of the electronic device. FIG. 11B is a side view of the electronic device. FIG. 11C is a cross-sectional view of the cable duct. FIG. 12 is a flowchart for explaining a procedure of a case replacement method in the electronic device system. FIG. 13A is a diagram for explaining an electronic device replacement method. FIG. 13-2 is an enlarged view of a portion P in FIG. 13-1. FIG. 14A is a diagram for explaining a housing replacement method in the electronic device system. FIG. 14B is a diagram for explaining a housing replacement method in the electronic device system. FIG. 15 is a flowchart for explaining a procedure of a case replacement method in the electronic device system. FIG. 16 is a diagram for explaining a housing replacement method in the electronic device system. FIG. 17 is a flowchart for explaining the procedure of the housing replacement method in the electronic device system. FIG. 18A is a diagram for explaining a case replacement method in the electronic device system. FIG. 18-2 is a diagram for explaining a housing replacement method in the electronic device system. FIG. 19 is a perspective view illustrating a configuration in which the electronic device system according to the second embodiment is applied to a large-scale system. FIG. 20 is a top view of FIG. FIG. 21 is a front view of FIG. FIG. 22 is a side view of FIG. FIG. 23 is a diagram illustrating an outline (first example) of an electronic device system according to a conventional technique. FIG. 24 is a diagram illustrating an outline (second example) of the electronic device system according to the related art.

  Exemplary embodiments of a cable duct, an electronic device system, a cable duct system, and a housing replacement method in the electronic device system disclosed in the present application will be described below in detail with reference to the accompanying drawings. FIG. 1 is a diagram illustrating a configuration of the electronic device according to the first embodiment. FIG. 2 is a diagram illustrating the inside of the electronic device according to the first embodiment.

  In the example of the first embodiment described below, the electronic apparatus is exemplified by a server apparatus as an information processing apparatus in which a plurality of units each including at least an arithmetic processing device and a storage device are arranged in a housing. explain. In this case, a server rack or the like is applied as the housing. The disclosed technology can be applied to, for example, a telephone exchange, a communication device represented by a router, a router, a LAN (Local Area Network) device, and the like.

  Further, the disclosed technology may be applied to an acoustic system (PA: Public Address) that is mounted on a housing while being mounted with a printed circuit board. In addition, a server unit or the like is applied as a unit mounted inside the electronic apparatus.

[Example of the first embodiment]
1 and 2 show an electronic device system in which two electronic devices 1a and 1b each equipped with a cable duct 20 are connected in an adjacent state. Note that the first embodiment does not limit the cable duct, the electronic device system, the cable duct system, and the housing replacement method in the electronic device system disclosed in the present application.

  As shown in FIGS. 1 and 2, the electronic devices 1 a and 1 b are formed by a console-type housing 2 that is vertically long as a whole. The housing 2 of the electronic devices 1a and 1b includes a top plate 3, a bottom plate 4, a front cover 5, and a rear cover (not shown). Cable ducts 20 are mounted on the tops 3 of the electronic devices 1a and 1b, respectively.

  In other words, a plurality of units 7 in the electronic device 1a and a plurality of units 7 in the electronic device 1b (in the drawing) are provided by the cable duct 20 mounted on the electronic device 1a and the cable duct 20 mounted on the electronic device 1b. 4) cables 9a to 9d can be connected. The details of the cable duct 20 mounted on the electronic devices 1a and 1b will be described later.

  As shown in FIG. 2, a plurality (four in FIG. 2) of units 7 are mounted inside the storage unit 8 formed in the housing 2 of the electronic devices 1 a and 1 b. A plurality of cables 9a to 9d are connected by connectors (not shown).

  Moreover, it has the cable channel | path part 10 which lets several cables 9a-9d pass in the one side (left side of FIG. 2) of the storage part 8. As shown in FIG. The outer diameter (dimension L) of the cable passage portion 10 is the outer diameter (dimension L) of the cable passage portion 10 provided in the conventional electronic devices 1a, 1b, 1c (FIGS. 23 and 24) in order to reduce the size of the device. The dimensions are smaller than ′).

  Further, wheels 12 used as casters for moving the electronic devices 1a and 1b installed on the floor are fixedly provided at predetermined positions (four corners) of the bottom plate 4 of the electronic devices 1a and 1b. Further, in the vicinity of the wheel 12, the height position (elevating position) of the housing 2 forming the electronic devices 1a, 1b is adjusted, and the elevating pedestal legs 13 for fixing the electronic devices 1a, 1b on the floor. Is fixed.

  The elevating pedestal 13 has a screw part 14 (FIG. 6), a nut 15 fitted and fixed to the screw part 14, and a disk base 16 that is grounded on the floor. The screw portion 14 of the elevating pedestal 13 is screwed into a screw hole 4 b formed in the bottom plate 4 of the cable duct 20. The elevating pedestal 13 functions as a so-called jack-up mechanism that raises or lowers the height positions of the electronic devices 1a and 1b and the floor. By adjusting the position of the elevating nut 15 provided on the elevating pedestal 13, the electronic devices 1 a and 1 b fixed on the floor can be released.

  Next, details of the overall configuration of the cable duct will be described with reference to FIGS. FIG. 3 is a diagram showing the configuration of the cable duct. FIG. 4 is a view showing the inside of the cable duct. FIG. 5A is an enlarged view showing the pedestal of the cable duct. FIG. 5B is an enlarged view showing details of the pedestal shown in FIG. FIG. 6 is an enlarged view showing a pedestal of the electronic device.

  As shown in FIG. 3 and FIG. 4, the cable duct 20 is formed in a rectangular shape as a whole, and has a bottom plate portion 30 that is formed in substantially the same size as the top plate 3 of the electronic devices 1 a and 1 b, and the bottom plate portion 30. It has the 1st side board part 40 and the 2nd side board part 50 which stood up from both sides, and the back plate 52.

  The bottom plate portion 30 is disposed so as to be parallel to the installation surface of the housing 2. Further, the first side plate portion 40 and the second side plate portion 50 are arranged perpendicular to the bottom plate portion 30. The top plate 3 is disposed so as to be perpendicular to the first side plate portion 40 and the second side plate portion 50.

  As shown in the figure, the pair of (two) cable ducts 20 are coupled and fixed to each other using the two connecting bolts 44 between the first side plate portion 40 and the second side plate portion 50. . Further, the opening (upper surface portion) of the cable duct 20 is sealed by the upper surface cover 60. That is, the upper surface cover 60 is disposed so as to block a rectangular opening formed on the upper surface of the housing 2 by the top plate 3, the bottom plate portion 30, the first side plate portion 40, and the second side plate portion 50.

  Further, the first side plate portion 40 and the second side plate portion 50 of the cable duct 20 have a first window portion 41 through which the cables 9a and 9b connected to the upper unit 7 of the electronic devices 1a and 1b are inserted. Second window portions 51 are respectively formed. Further, on one side of the bottom plate portion 30 (on the right side in FIGS. 3 and 4), a notch portion 31 through which the cables 9a and 9b are inserted is formed.

  In addition, a plurality of (four) first pillar parts 61, second pillar parts 62, third pillar parts 63, and fourth pillars are provided at predetermined positions (four places) of the bottom plate part 30. A portion 64 is erected. The first column portion 61 to the fourth column portion 64 are provided for arranging the cables 9a and 9b in an aligned state in the bottom plate portion 30 of the electronic devices 1a and 1b.

  Moreover, the base 80 (FIG. 5-1) which adjusts the height position (lifting position) of the cable duct 20 is provided in the predetermined position (four corners) of the bottom plate part 30 of the cable duct 20. Yes. The pedestal 80 includes a screw portion 81, a nut 82 fixed to the screw portion 81, a disc portion 83 fixed to the base end portion of the screw portion 81, and a substantially central portion of the disc portion 83. And a fixed positioning pin 84. The screw portion 81 of the pedestal 80 is fixed by being screwed into the screw hole 21 (FIG. 5A) of the bottom plate portion 30 of the cable duct 20.

  Here, for example, by rotating the nut 82 counterclockwise, the screwing amount of the screw portion 81 into the screw hole 21 is reduced, so that the height position of the cable duct 20 with respect to the electronic devices 1a and 1b can be increased. . On the contrary, by rotating the nut 82 clockwise, the screwing amount of the screw portion 81 into the screw hole 21 is increased, so that the height position of the cable duct 20 with respect to the electronic devices 1a and 1b can be reduced.

  Moreover, the pin 84 of the disc part 83 provided in the base leg 80 fits with a pair of hole 6a formed in the top plate 3 of electronic device 1a, 1b. In this way, the pin 84 of the pedestal 80 of the cable duct 20 is fitted into the hole 6a (FIG. 5-2) formed in the top plate 3 of the electronic devices 1a and 1b, whereby the cable duct 20 is connected to the electronic device. It can be combined and mounted on top of 1a and 1b.

  As shown in FIGS. 2 to 4, the cables 9 a and 9 b connected to the unit 7 disposed in the upper stage of the storage unit 8 of the electronic device 1 a pass through the through hole 6 of the top plate 3 of the electronic device 1 a. Further, it passes through the first pillar part 61 and the second pillar part 62 via the notch part 31 of the bottom plate part 30 of the cable duct 20. Then, the first and second side plate portions 40 and 50 pass through the first and second window portions 41 and 51 from the second column portion 62 and the third column portion 63.

  That is, the cables 9a and 9b from the electronic device 1a via the notch 31 of the bottom plate portion 30 of the electronic device 1a pass between the first pillar portion 61 and the second pillar portion 62, and then the second The first window portion 41 passes between the pillar portion 62 and the third pillar portion 63, or the second window portion 51 passes between the first pillar portion 61 and the fourth pillar portion 64. Can be inserted.

  The cables 9a and 9b are connected to the first pillar portion 61 and the fourth pillar portion via the first pillar portion 61 and the second pillar portion 62 via the notch portion 31 of the bottom plate portion 30 of the cable duct 20. The first and second window portions 41 and 51 of the first and second side plate portions 40 and 50 can be passed through the column portion 64.

  The cables 9a and 9b passing through the first and second window portions 41 and 51 of the first and second side plate portions 40 and 50 pass through the notch portion 31 of the bottom plate portion 30 of the electronic device 1b. It passes through the through hole 6 of the top plate 3. And it can respectively connect to the unit 7 arrange | positioned at the upper stage of the storage part 8 of the electronic device 1b.

  On the other hand, the cables 9c and 9d (FIG. 2) connected to the unit 7 located at the lower stage of the electronic device 1a pass through the inside of the cable passage portion 10, and the passage portion provided from the through hole 4a of the bottom plate 4 to the inside of the floor. 11 is passed. The cables 9c and 9d (FIG. 2) extended from the passage portion 11 under the floor pass through the cable passage portion 10 of the electronic device 1b, and a plurality of units 7 arranged in the lower stage of the storage portion 8 of the electronic device 1b. Can be connected to each.

  As described above, the electronic device system according to the first embodiment includes the cable duct 20 via the cables 9a and 9b connected to the unit 7 arranged on the upper stage of the electronic device 1a. Moreover, it is mounted on the electronic device 1b arranged adjacent to the electronic device 1a, and includes cables 9a and 9b that pass from the cable duct 20 of the electronic device 1a, and a cable duct 20 that passes to the electronic device 1b.

  As a result, the cables 9a to 9d of the units 7 arranged in the upper and lower stages in the electronic devices 1a and 1b are not bundled together but arranged in a state of being distributed in two directions of the upper side and the lower side. be able to. As a result, the electronic devices 1a and 1b can be efficiently connected with an optimum cable length.

  Further, as described above, the cables 9a to 9d of the unit 7 can be distributed in two directions. Therefore, the lateral width (dimension L) of the cable passage portion 10 provided inside the electronic devices 1a and 1b is smaller than the lateral width (dimension L ′) of the conventional cable passage portion 10 (FIGS. 23 and 24). , About 1/2). Further, the cable length for connecting the units 7 of the electronic devices 1a and 1b can be made shorter than the conventional cable length (about 1/2).

  That is, it is possible to mount electronic parts such as the unit 7 on the electronic devices 1a and 1b with high density and to reduce the size of the housing. In addition, since the housing 2 forming the electronic devices 1a and 1b can be downsized, the cable length when the plurality of electronic devices 1a and 1b are connected by a cable is shortened, and a high-performance large-scale server system can be realized. Construction can be facilitated. As a result, the density can be increased in the electronic devices 1a and 1b, and the cost can be significantly reduced by reducing the parts of the cable passage portion 10 and the cable itself.

[Electronic device system using multiple electronic devices]
Next, an electronic device system using a plurality of electronic devices will be described with reference to FIG. FIG. 7 shows an electronic device system in which three electronic devices 1a to 1c each equipped with a cable duct 20 are connected in an adjacent state.

  Hereinafter, an example in which an electronic device system is constructed by a plurality (three in the drawing) of electronic devices 1a to 1c on which the cable duct 20 is mounted will be described. In the electronic device system shown in FIG. 7, the same components as those of the housings 2 of the electronic devices 1a and 1b and the electronic devices 1a to 1c shown in FIG. .

  That is, as shown in FIG. 7, cable ducts 20 are mounted on the tops 3 of the electronic devices 1a to 1c, respectively. Cables 9a and 9b are connected to the unit 7 located in the upper stage in the storage unit 8 of the housing 2 of the electronic devices 1a to 1c by connectors (not shown).

  And cable 9a, 9b which passed the through-hole 6 of the top plate 3 of electronic device 1a-1c passes through the cable duct 20 mounted in the upper part of electronic device 1a-1c, and each electronic device 1a-1c. Units 9 located on the upper stage can be connected to each other.

  Thus, in the first embodiment, even when a plurality of electronic devices are installed, the cable duct 20 is mounted on each of the upper portions of the plurality (three in the figure) of the electronic devices 1a to 1c. Thereby, the electronic device system which connects several electronic device 1a-1c with cable 9a-9d can be constructed | assembled.

  Thus, even when the three electronic devices 1a to 1c are installed adjacent to each other, the cables 9a to 9d of the unit 7 are moved in two directions by the cable ducts 20a to 20c mounted on the upper portions of the electronic devices 1a to 1c. It can be distributed and wired. As a result, the cable length can be made shorter than that of the conventional one (about 1/2), and the cost of the electronic devices 1a to 1c can be reduced by reducing the number of parts as well as increasing the density inside the electronic devices 1a to 1c. Can do.

[An example of the second embodiment]
Next, an electronic device system according to an example of the second embodiment will be described. FIG. 8 is a diagram illustrating a configuration of an electronic device system according to an example of the second embodiment. FIG. 9 is a diagram showing the configuration of the cable duct.

  FIG. 10 is a perspective view showing a configuration of a cable duct provided with a bridge plate. 11-1 is a top view of the electronic device, FIG. 11-2 is a side view of the electronic device, and FIG. 11-3 is a cross-sectional view of the cable duct.

  In the electronic device system shown in FIG. 7 according to an example of the second embodiment, the same components as those of the housing 2 of the electronic devices 1a and 1b shown in FIGS. The detailed explanation is omitted. Also, in FIGS. 8 to 10 and FIGS. 11-1 to 11-1, illustrations of housings forming the electronic devices 1 a to 1 e are omitted.

  In the electronic device system according to the second embodiment, when the electronic device 1b is used as a reference position, the bridge plate that connects the cable ducts 20 between the electronic devices when the connection-destination electronic device is a separated position. 90 is provided. Further, when the arrangement directions of the electronic devices to be connected are different, a bridge plate 70 for connecting the cable ducts 20 of the two different arrangement directions is provided.

  That is, FIG. 8 is a diagram illustrating an electronic device system that connects a plurality of electronic devices 1a to 1e on which a plurality (five in FIG. 8) of cable ducts 20 are mounted. As described above, in the case of the electronic devices 1a to 1e on which the plurality of cable ducts 20 are mounted, the bridge plates 70 and 90 that connect and bridge the cable ducts 20 are used.

  As shown in FIG. 9, the cable duct 20 has a bottom plate portion 30, a first side plate portion 40 and a second side plate portion 50 erected from both sides of the bottom plate portion 30, and a pair of screw holes 53. And a back plate 52. In addition, a fixed plate 67 in which a pair of screw holes 66 for connecting the first side plate portion 40 and the second side plate portion 50 is formed is fixedly provided on the front side of the cable duct 20.

  The opening 45 divided into the first side plate 40 and the second side plate 50 provided with the fixing plate 68 is an opening for bridging the bridge plate 70 between the cable ducts 20. Similarly, the window 56 formed in the upper part of the back plate 52 also serves as an opening for bridging the bridge plate 70 between the cable ducts 20. The screw hole 53 of the back plate 52 and the screw hole 66 of the fixing plate 67 are screw holes for fixing the bridge plate 70.

  Further, screw holes 43 and 55 are formed at positions below the end faces 42 and 54 of the first side plate portions 40 and 50 of the cable duct 20. The screw holes 43 and 55 formed in the end faces 42 and 54 of the first side plate portions 40 and 50 become screw holes for fixing the bridge plate 90 to the cable duct 20 with the mounting screws 75.

  The bridge plate 70 is formed in an elongated shape as a whole, and includes a main body plate portion 71 and a pair of side plate portions 72 erected from both end portions of the main body plate portion 71. Further, at both ends of the main body plate portion 71 of the bridge plate 70, a through hole 73 and a through hole 74 through which the attachment screw 75 is passed are formed.

  Similarly to the bridge plate 70, the bridge plate 90 is formed in a long shape as a whole, and includes a main body plate portion 91 and a pair of side plate portions 92 that are erected from both ends of the main body plate portion 91. A pair of through holes 93 through which the attachment screws 75 are passed are formed at both ends of the main body plate portion 91 of the bridge plate 90.

  As shown in FIG. 10, when the bridge plate 70 is attached to the cable duct 20, the attachment screw 75 through which the through hole 73 of the main body plate portion 71 forming the bridge plate 70 is inserted is connected to the third column portion 63 and the The four pillar portions 64 are screwed into the screw holes 65 and fixed. Similarly, the attachment screw 75 inserted through the through hole 74 of the main body plate portion 71 is screwed into the screw hole 66 of the back plate 52 and fixed.

  Further, the mounting screw 75 inserted through the through hole 73 of the main body plate portion 71 of the bridge plate 70 is screwed and fixed to the screw holes 65 of the first column portion 61 and the second column portion 62. Similarly, the mounting screw 75 inserted through the through hole 74 of the main body plate portion 71 is screwed into the screw hole 66 of the fixing plate 67 and fixed. Thereby, the bridge plate 70 for X direction can be fixed to the cable duct 20.

  As shown in FIG. 10, when the bridge plate 90 is attached to the cable duct 20, the attachment screws 75 through which the through holes 93 of the bridge plate 90 are inserted are used as the first and second side plate portions of the cable duct 20. The screw holes 43 and 55 formed in the end faces 42 and 54 (FIG. 9) of the 40 and 50 are screwed and fixed. Thereby, the bridge plate 90 for the Y direction orthogonal to the upper front X direction can be fixed to the cable duct 20.

  More specifically, since the electronic devices 1b and 1c arranged adjacent to each other are arranged at positions separated from the electronic devices 1a connected thereto, the cable ducts 20 of the electronic devices 1b and 1c and the electronic devices 1a The cable duct 20 is connected by a bridge plate 90 (Y direction).

  The bridge plate 90 bridges the first window portion 41 of the first side plate portion 40 and the second window portion 51 of the second side plate portion 50, and cables 9a and 9b from the electronic device 1a and the electronic device 1b. The cables 9a and 9b can be inserted.

  That is, when the electronic devices 1b and 1c are adjacent to each other in the same direction (Y direction) and the connection-destination electronic device 1a is located at a position separated from the electronic devices 1b and 1c, the cable between the electronic device 1a and the electronic device 1b is used. A bridge plate 90 is provided via a cable path between the ducts 20.

  Similarly, in the electronic devices 1a to 1c, the electronic device 1b, the electronic device 1d, and the electronic device 1e are disposed at different positions (in the X direction) different from each other, so that the cable duct 20 of the electronic device 1b and the electronic device The cable duct 20 of 1d and the cable duct 20 of the electronic device 1e are connected by a bridge plate 70 (X direction), respectively.

  The bridge plate 70 bridges the first window portion 41 of the first side plate portion 40 and the second window portion 51 of the second side plate portion 50, and cables 9a and 9b from the electronic device 1a and the electronic device 1b. The cables 9a and 9b can be inserted.

  That is, the bridge plate 70 bridges the window portion 56 included in the back plate 52 of the cable duct 20 of the electronic device 1b and the window portion 56 included in the back plate 52 of the electronic device 1e, and the cable 9a from the electronic device 1b. , B can be inserted through the bridge plate 70 through the cables 9a, 9b from the electronic device 1e.

  More specifically, when the electronic devices 1d and 1e are located in a connection direction (X direction) different from the position direction (Y direction) of the electronic device 1b, the cable duct 20 of the electronic device 1b, the electronic device 1d, A bridge plate 90 is provided via a cable path between the cable ducts 1e. Here, the attachment position of the bridge plate 70 to the cable duct 20 is higher than the attachment position of the bridge plate 90, and a step is generated between the bridge plate 70 and the bridge plate 90.

  The cables 9a and 9b extended from the electronic device 1b are arranged toward the connection-destination electronic device 1d and the electronic device 1e via the X-direction bridge plate 70 arranged on the upper side of the bridge plate 90. be able to. Similarly, the cables 9a and 9b extending from the electronic device 1b and the electronic device 1c are connected to the connected electronic device 1a via the bridge plate 90 in the Y direction arranged below the bridge plate 70. It can arrange | position toward.

  As described above, the bridge plates 70 and 90 connected to the cable duct 20 form cable paths in two directions (X direction and Y direction) having different steps (FIG. 11-2). Since the cables 9a and 9b extending from the electronic devices 1a and 1b can be three-dimensionally crossed, the wirings of the cables 9a and 9b can be dispersed according to the positions of the connection-destination electronic devices 1a and 1e. .

  As described above, in the electronic device system according to the second embodiment, the direction of the connection destination of the cables 9a to 9d between the electronic devices 1a to 1e is separated by the cable duct system including the bridge plates 70 and 90. Even when the directions are different or the directions are different (directions intersect), the wiring of the cables 9a to 9d can be three-dimensionally intersected by the bridge plates 70 and 90. Thus, the cables 9a to 9d wired between the electronic devices 1a to 1e can be connected efficiently and in a state where the wires are aligned.

[Case Replacement Method in Electronic Device System (First Example)]
Next, a case replacement method (first example) in the electronic device system will be described with reference to FIGS. FIG. 12 is a flowchart for explaining a procedure of a case replacement method in the electronic device system. FIG. 13A is a diagram illustrating an electronic device replacement method. FIG. 13-2 is an enlarged view of a portion P in FIG. FIGS. 14A and 14B are diagrams illustrating an electronic device replacement method.

  Here, in FIGS. 12, 13-1, and FIGS. 14-1 and 14-2, of the four electronic devices 1 a to 1 d, the electronic device 1 b and the electronic device arranged between the electronic device 1 a and the electronic device 1 d A procedure for replacing the device 1c (hatched diagram) due to a failure or the like will be described. In addition, cable ducts 20a to 20d are mounted on the tops 3 of the electronic devices 1a to 1d, respectively. In the following description, the replacement of the electronic devices 1b and 1c to be replaced will be described as being performed manually such as manually.

  That is, as shown in the flowchart of FIG. 12, first, adjustment is performed to extend the pedestal provided in the cable duct of the electronic device other than the replacement target (step S101). More specifically, four stands provided on the bottom plate portion 30 of the cable ducts 20a and 20d mounted on the electronic devices 1a and 1d located on both sides of the electronic devices 1b and 1c (FIG. 13-1). The nut 82 of the leg 80 is turned in a predetermined direction. And the height position of cable duct 20a-20d with respect to the top plate 3 of electronic device 1a-1d is made high.

  As described above, the upper portions of the electronic devices 1a to 1d are adjusted by extending the bases 80 of the cable ducts 20a and 20d of the electronic devices 1a and 1d other than the replacement target located on both sides of the electronic devices 1b and 1c. The cable ducts 20a to 20d mounted on can be raised by a predetermined interval.

  Thereby, fitting with the hole 6a of the top plate 3 of the electronic devices 1b and 1c and the pin 84 (FIG. 13-2) of the base 80 is released. And the pin 84 of the base leg 80 can be extracted from the hole 6a of the top plate 3 of the electronic devices 1b and 1c. As a result, the coupling between the electronic devices 1b and 1c and the cable ducts 20b and 20c can be removed. .

That is, by adjusting the pedestal 80 provided on the cable duct 20 of the electronic devices 1a and 1d to be higher, the distance dimension T (FIG. 13-2) for fixing the electronic devices 1b and 1c and the cable duct 20 is increased. This is the dimension T ₁ (FIG. 14-1). Thus, it is possible to release the coupling between the dimension _{T 2} (FIG. 14-1) fraction of the increase in the cable duct 20 by cable ducts 20 and the electronic device 1b, 1c.

  Next, the fixing of the electronic device to be exchanged is released from the floor (step S102). That is, the adjustment of lowering the height position of the elevating pedestal 13 by turning the nuts 15 (FIG. 14-2) of the four elevating pedestal legs 13 fixed to the bottom plate 4 of the electronic devices 1b and 1c. To do.

  More specifically, the electronic devices 1b and 1c are fixed in a state where they are supported on the floor by the elevating pedestal 13. For this reason, the elevating pedestal 13 is lifted from the floor by adjusting the nut 15 (FIG. 14-2), thereby releasing the fixing of the electronic devices 1b and 1c to the floor.

  Next, the electronic device to be exchanged is exchanged for a new electronic device (step S103). Specifically, as shown in FIG. 14B, the electronic devices 1b and 1c to be exchanged are newly renewed by pulling out the electronic devices 1b and 1c from between the electronic devices 1a and 1d. The electronic devices 1a and 1b are replaced. Here, since the fixing of the electronic devices 1b and 1c to the floor by the lifting legs 13 is released in step S102, the electronic devices 1b and 1c can be moved in the removal direction by moving the wheel 12.

  The cable ducts 20a to 20d positioned above the electronic devices 1a to 1d are coupled to the electronic devices 1a and 1d and the cable ducts 20a and 20d even when the electronic devices 1b and 1c are removed. For this reason, the cable ducts 20a and 20d are held at the upper positions of the electronic devices 1a to 1d by the pedestal 80.

  Here, when actually removing the electronic devices 1b and 1c to be replaced, the cables 9a to 9d connected to the unit 7 of the electronic devices 1b and 1c are removed. Specifically, first, the connectors (not shown) of the cables 9a and 9b connected to the two units 7 arranged on the upper side of the electronic devices 1b and 1c are disconnected, and the two removed cables 9a, 9 b is pulled out from the through hole 6 of the top plate 3.

  Further, the two connectors (not shown) of the cables 9c and 9d connected to the two units 7 arranged on the lower side of the electronic devices 1b and 1c are removed. Then, the two removed cables 9c and 9d are pulled out of the housing 2 from the through holes 4a of the bottom plate 4 of the electronic devices 1b and 1c. Through the above operations, the electronic devices 1b and 1c provided between the electronic devices 1a and 1d can be removed.

  As described above, the case replacement method in the electronic device system has been described. However, the order of the replacement steps is not limited to the main steps shown in steps S101 to S103, and may be reversed or reversed.

  In the above-described method for replacing the casing in the electronic device system, a simple operation for adjusting the height position of the pedestal 80 of the cable ducts 20a to 20d is a replacement target disposed between the electronic devices 1a and 1d. The electronic devices 1b and 1c can be easily replaced.

  In this case, the cables 9a to 9d are not removed from the electronic devices 1a and 1d that are not to be replaced, and the electronic devices 1a other than the replacement target are simply removed by removing the cables 9a to 9d of the electronic devices 1b and 1c to be replaced. It is not necessary to remove the 1d cables 9a to 9d. As a result, it is possible to reduce the risk of erroneous connection during cable connection work or contact failure due to foreign matter mixing, and to reduce the influence on the entire system.

[Case Replacement Method in Electronic Device System (Second Example)]
Next, a case replacement method (second example) in the electronic device system will be described with reference to FIGS. 15 and 16. FIG. 15 is a flowchart for explaining a procedure of a case replacement method in the electronic device system. FIG. 16 is a diagram for explaining a housing replacement method in the electronic device system. In the following description, a detailed description of the processing procedure similar to the case replacement method (first example) in the electronic device system described above will be omitted.

  That is, as shown in the flowchart of FIG. 15, first, adjustment is performed to shorten the base provided in the cable duct of the electronic device to be replaced (step S201). More specifically, the nuts 82 (FIG. 16) of the four pedestals 80 fixed to the bottom plate portion 30 of the cable ducts 20b and 20c mounted on the upper portions of the electronic devices 1b and 1c are turned in a predetermined direction. . And the height position of the cable ducts 20b and 20c with respect to the top plate 3 of the electronic devices 1b and 1c is lowered.

  Thus, it adjusts so that the height of the base 80 of the cable duct 20 of electronic device 1b and 1c which are exchange objects may be shortened, and it fits in hole 6a of top board 3 of electronic devices 1b and 1c. The pin 84 of the pedestal 80 to be removed can be removed. As a result, the connection between the electronic devices 1b and 1c and the cable ducts 20b and 20c can be removed.

  That is, adjustment is performed to lower the pedestal 80 provided on the cable ducts 20b and 20c of the electronic devices 1b and 1c among the pedestals 80 (FIG. 16) of the cable ducts 20a to 20d mounted on the upper portions of the electronic devices 1a to 1d. .

Thus, the electronic device 1b, 1c and the cable duct 20b, the dimensions of the gap for fixing the 20c T (FIG. 13-2) is dimensioned _{T 1} (Figure 16). Then, it is possible to release the dimension _{T 2} minutes of cable ducts 20b, rise only cable ducts 20 and the electronic device 1b 20c, the binding of 1c. As a result, a gap is ensured between the electronic devices 1b and 1c to be replaced and the cable ducts 20b and 20c, and the devices can be replaced.

  Next, the fixing of the electronic device to be exchanged is released from the floor (step S202). That is, similar to the replacement method of the first example described above, the nuts 15 of the four lifting bases 13 fixed to the bottom plate 4 of the electronic devices 1b and 1c (FIG. 14-2) are turned up and down. Adjustment to lower the height position of the pedestal 13 is performed. Then, the electronic devices 1b and 1c are released from the floor.

  Next, the electronic device to be exchanged is exchanged for a new electronic device (step S203). That is, similarly to the replacement method of the first example described above, the electronic devices 1b and 1c are pulled out from between the electronic device 1a and the electronic device 1d, and the electronic devices 1b and 1c to be replaced are new electronic devices. Replace with 1a, 1b.

  Also in the case of the case replacement method in the electronic device system of the second example described above, as in the case of the replacement method of the first example, a simple operation for adjusting the height position of the pedestal 80 of the cable duct 20 can be performed. The electronic devices 1b and 1c can be easily replaced.

  Also in this case, it is not necessary to remove the cables 9a to 9d of the electronic devices 1a and 1d other than the replacement target, and the risk of erroneous connection at the time of cable connection work or contact failure due to foreign matter mixing is reduced. The influence on the entire system can be reduced.

[Case Replacement Method in Electronic Device System (Third Example)]
Next, a housing replacement method (third example) in the electronic device system will be described with reference to FIGS. 17 and 18-1 and 18-2. FIG. 17 is a flowchart for explaining the procedure of the housing replacement method in the electronic device system. FIGS. 18A and 18B are diagrams for explaining a case replacement method in the electronic device system.

  That is, as shown in the flowchart of FIG. 17, an adjustment is performed to extend the lifting bases arranged on the bottom plate of the electronic device other than the replacement target (step S301). More specifically, as shown in FIG. 18-1, by turning the nuts 15 (FIG. 14-2) of the four lifting legs 13 fixed to the bottom plate 4 of the electronic devices 1b and 1c, The height position of the lift base 13 is increased.

  Next, the fixing of the electronic device to be exchanged is released from the floor (step S302). More specifically, the nuts 15 of the four lifting legs 13 fixed to the bottom plate 4 of the electronic devices 1b and 1c (see FIG. ) In the specified direction. And the adjustment which lowers the height position of the raising / lowering base 13 is performed. That is, the electronic devices 1b and 1c are released from being fixed to the floor by adjusting the height position of the lift base 13.

Here, by adjusting the height of the elevating pedestal 13 of the electronic devices 1b and 1c to be lower in this way, the electronic devices 1b and 1c are moved downward by the dimension T ₃ (see FIG. 18-2) Move down for a minute. This can ensure the dimensional _{T 2} (FIG. 18-2), the electronic device 1b, the fitting of the pins 84 of the base leg 80 relative to the top plate 3 of the hole 6a of 1c (Figure 13-2) disengage. Thereby, the electronic devices 1b and 1c can be removed.

  Next, the electronic device to be replaced is replaced with a new electronic device (step S303). That is, in the same way as the replacement methods of the first and second examples described above, the electronic devices 1b and 1c are pulled out from between the electronic devices 1a and 1d, and the electronic devices 1b and 1c to be replaced are newly set. Replace with electronic devices 1a, 1b.

  Also in the case of replacing the housing in the electronic device system of the third example described above, the electronic devices 1b and 1c to be replaced can be easily obtained by a simple operation of adjusting the height position of the base 13 of the electronic devices 1a and 1d. Can be exchanged.

  Further, in this case, it is not necessary to remove the cables 9a to 9d of the electronic devices 1a and 1d other than the replacement target, thereby reducing the risk of erroneous connection at the time of cable connection work or contact failure due to foreign matter mixing, and the system. The influence on the whole can be reduced.

  In the electronic device replacement method (third example) described above, when the electronic device is replaced, the lifting base 13 provided on the bottom plate 4 is adjusted to be extended. When 1d is installed on the floor, the height of the elevating pedestal 13 is previously extended from the reference. And you may make it install in the state which extended the height of the elevating base 13 in this way.

  Specifically, the position of the pedestal 80 of the electronic devices 1a to 1d is adjusted to be higher than the reference position. In this case, the pin 84 of the pedestal 80 of the cable ducts 20b and 20c is adjusted to be electronic by adjusting the height of the lifting pedestal 13 of the electronic devices 1b and 1c to be replaced. It will be extracted from the through hole 6a of the top plate 3 of the devices 1b and 1c.

[Example of application to large-scale systems]
Next, an example in which the electronic device system according to the second embodiment is applied to a large-scale system will be described with reference to FIGS. FIG. 19 is a perspective view showing a configuration in which the electronic device system according to the second embodiment is applied to a large-scale system. 20 is a top view of FIG. 19, FIG. 21 is a front view of FIG. 19, and FIG. 22 is a side view of FIG. In FIGS. 19 to 22, illustrations of the casings forming the electronic device and the cables arranged in the cable duct are omitted.

  That is, FIG. 19 and FIG. 20 are diagrams for connection using a plurality of electronic device 1a to 1l cable duct systems on which a plurality of (12 in FIG. 19 and 20) cable ducts 20 are mounted. As described above, in the case of the electronic devices 1a to 1l equipped with the plurality of cable ducts 20, a large-scale electronic device system is formed by using the bridge plates 70 and 90 that connect and bridge the cable ducts 20. Can do.

  As shown in FIG. 19 and FIG. 20, the electronic devices 1 a to 1 c and the electronic device 1 d that are arranged adjacent to each other are arranged at a predetermined interval (separated position). The duct 20 and the cable duct 20 of the electronic device 1d are bridged by a bridge plate 90 for the Y direction.

  Similarly, since the electronic devices 1e to 1g and the electronic device 1h that are arranged adjacent to each other are arranged at a predetermined interval, the cable duct 20 of the electronic devices 1e to 1g and the cable duct 20 of the electronic device 1h are different from each other. Bridged by a bridge plate 90.

  Similarly, since the electronic devices 1i to 1k and the electronic device 11 that are arranged adjacent to each other are arranged at a predetermined interval, the cable duct 20 of the electronic devices 1i to 1k and the cable duct 20 of the electronic device 11 are They are connected by a bridge plate 90. And the predetermined space | interval with which these bridge plates 90 for Y directions are connected becomes the operation | work channel | path (FIGS. 19-22) which performs a maintenance inspection.

  Moreover, as shown in FIG. 19 and FIG. 20, in the electronic devices 1a to 1c, the electronic devices 1e to 1g, and the electronic devices 1i to 1k arranged in the adjacent positions, the electronic device 1e is the reference position, The cable duct 20 of the electronic device 1e is connected to the connection-destination electronic device 1a and the cable duct 20 of the electronic device 1i by the bridge plate 70 for the X direction.

  The electronic device 1f of the electronic devices 1e to 1g is a reference position, and the cable duct 20 of the electronic device 1f is connected to the connection-destination electronic device 1b and the cable duct 20 of the electronic device 1j by the bridge plate 70 for the X direction. The

  Similarly, the electronic device 1g of the electronic devices 1e to 1g serves as a reference position, and the cable duct 20 of the electronic device 1g is connected to the connection destination electronic device 1c and the cable duct 20 of the electronic device 1k by the bridge plate 70 for the X direction. Is done.

  Similarly, the electronic device 1h of the electronic devices 1e to 1g is the reference position, and the cable duct 20 of the electronic device 1h is connected to the connection-destination electronic device 1d and the cable duct 20 of the electronic device 1l by the bridge plate 70 for the X direction. Is done. Similarly to the Y-direction bridge plate 90 described above, a predetermined interval at which these X-direction bridge plates 70 are connected is a work passage (FIGS. 19 to 21) that is used when performing maintenance and inspection. )

  As described above, in the case of the electronic device in which the bridge plates 70 and 90 are connected to the cable duct 20 shown in the second embodiment, the position separated in the X direction or the Y direction by the cable duct system, or Electronic devices arranged at different positions can be connected. Thereby, the cable duct system shown in the second embodiment can be effectively applied to a large-scale system of an electronic device.

  In this case, it is possible to secure a work path that is used when performing maintenance inspection and repair. Further, when constructing an electronic device system, it is possible to reduce the total number of work steps. As a result, the introduction and early operation of the electronic device system in a short period can be realized.

(Problems of conventional technology)
FIG. 23 is a diagram illustrating an outline (first example) of an electronic device system according to a conventional technique. In the conventional electronic device system shown in FIG. 23, two electronic devices 1a and 1b are connected, and the casing 2 forming the electronic devices 1a and 1b includes a top plate 3, a bottom plate 4, a front cover, and a rear cover. (Not shown).

  In addition, the housing 2 of the electronic devices 1 a and 1 b has a storage unit 8 on which a plurality of units 7 are mounted, and each of the plurality of units 7 is connected by a cable 9. Further, the storage portion 8 has a cable passage portion 10 through which a plurality of cables 9 pass.

  As shown in the figure, the cable 9 connected to the unit 7 of the electronic device 1a passes through the inside of the cable passage portion 10, and passes through the passage portion 11 provided inside the floor from the through hole 4a of the bottom plate 4. The plurality of cables 9 extending from the inside of the electronic device 1a and passing through the passage portion 11 are connected to the plurality of units 7 from the cable passage portion 10 of the electronic device 1b.

  As described above, in the case of the conventional electronic device system, the cable 9 for connecting the unit 7 between the electronic devices 1 a and 1 b is related to the position of the unit 7 disposed in the upper or lower stage in the storage unit 8. All of them use the cable passage 10 provided in the electronic devices 1a and 1b.

  Further, all the plurality of cables 9 pass through the cable 9 to the underfloor passage portion 11 using the cable passage portion 10, and the cable passage in the electronic device 1 b to be connected through the underfloor passage portion 11. The unit 7 is connected via the unit 10.

  Therefore, it is necessary to provide a large-scale cable passage portion 10 (dimension L ′) through which all the cables 9 pass inside the electronic devices 1a and 1b, thereby increasing the density inside the electronic devices 1a and 1b. It becomes a factor to inhibit.

  Further, since the total length of the cable 9 itself becomes long, there is a problem that the cost of parts increases and the transmission speed of the signal data is lowered and the performance of the entire system is lowered. Moreover, the problem that the wiring property at the time of the connection work of the cable 9 is deteriorated and the work man-hour of the whole work is increased occurs.

  FIG. 24 is a diagram showing an outline of an electronic apparatus according to a conventional technique (second example). In the electronic device system shown in FIG. 24, three electronic devices 1a to 1c are connected. And like the electronic devices 1a and 1b of the conventional electronic device system described above, the housing 2 forming the electronic devices 1a to 1c includes a top plate 3, a bottom plate 4, a front cover and a rear cover (not shown). Have

  The housings 2 of the electronic devices 1 a to 1 c each have a storage unit 8 on which a plurality of units 7 are mounted. Each of the plurality of units 7 is connected by a cable 9. Further, the cable 9 connected to the unit 7 of the electronic device 1 a to 1 c passes through the inside of the cable passage portion 10. And it connects to the some unit 7 from the cable channel | path part 10 of the electronic devices 1a-1c via the channel | path part 11, respectively.

  Therefore, similarly to the conventional electronic device system of the first example, the formation of the large-scale cable passage portion 10 (dimension L ′) becomes a factor that hinders the increase in density. In addition, since the total length of the cable 9 is increased, there is a problem in that the cost of components is increased and the transmission speed is lowered and the performance of the entire system is lowered.

DESCRIPTION OF SYMBOLS 1a-1l Electronic device 2 Case 3 Top plate 4 Bottom plate 5 Front cover 6a Hole part 7 Unit 8 Storage part 9, 9a, 9b, 9c, 9d Cable 10 Cable passage part 11 Passage part 12 Wheel 13 Lifting base leg 14 Screw Part 15 Nut 16 Disk base 20a, 20b, 20c, 20d Cable duct 30 Bottom plate part 31 Notch part 40 First side plate 50 Second side plate 41 First window part 51 Second window part 61 First column Part 62 Second pillar part 63 Third pillar part 64 Fourth pillar part 61a to 64a Screw hole 70, 90 Bridge plate 73, 74 Through hole 75 Mounting screw 80 Base leg 81 Screw part 82 Nut 83 Disc part 84 pin

The present invention relates to a cable duct and an electronic device system .

Claims (8)

A cable duct disposed on a top plate of a housing having an electronic device,
A front side, a first side, a second side, and a rear side, and a cable from the electronic device is provided at a predetermined position on the top plate of the housing on the front side. A bottom plate portion provided with a notch portion to be inserted together with the through hole,
A first side plate portion provided on the first side portion, the first side plate portion including a first window portion through which the cable can be inserted;
A cable duct, comprising: a second side plate portion provided with a second window portion standing on the second side portion and allowing the cable to be inserted therethrough. The cable duct further includes
Having first to fourth pillars erected on each vertex of the rectangular region on the bottom plate part;
A through hole provided at a predetermined position on the top plate of the housing is provided inside a rectangular region on the bottom plate portion having the first to fourth column portions as apexes,
The cable from the electronic device via the through hole provided on the top plate of the housing and the notch,
After passing between the first pillar part and the second pillar part, the first window part or the first part via the second pillar part and the third pillar part. 2. The cable duct according to claim 1, wherein the second window portion can be inserted through between the pillar portion and the fourth pillar portion. The cable duct further includes
The cable duct according to claim 1, wherein the bottom plate portion has a pedestal that is extendable and can be fitted into a hole portion of the top plate of the housing. The cable duct further includes
The first window part or the second window provided in the first window part or the second window part and the other cable duct arranged on a top plate of a casing having another electronic device. The cable duct according to claim 1, further comprising a bridge portion through which a cable from the electronic device and a cable from the other electronic device can be inserted. A first housing including a first electronic device having a vertical height position higher than a predetermined position and a second electronic device having a vertical height position lower than the predetermined position;
A third electronic device having a vertical height position higher than the predetermined position and a fourth electronic device having a vertical height position lower than the predetermined position are disposed adjacent to the first housing. A second housing,
A first cable duct disposed on the first housing and through which a cable from the first electronic device passes;
A second cable duct is disposed on the second casing adjacent to the first cable duct and through which the cable from the first cable duct passes to the third electronic device. And
The cable from the second electronic device is inserted through a through-hole provided in the bottom plate of the first casing, and the cable is formed from below the bottom plate of the first casing and the bottom plate of the second casing. An electronic device system, wherein the electronic device system reaches the fourth electronic device through a through hole provided in a bottom plate of the second housing. In the electronic device system,
The first or second cable duct further includes:
6. The electronic device system according to claim 5, further comprising a base plate on the bottom plate portion that is extendable and capable of being fitted into a hole portion of the top plate of the first or second casing. In the cable duct system arranged on the top plate of a plurality of cases each having an electronic device,
A first electronic device having a vertical height position higher than a predetermined position and a second electronic device having a vertical height position lower than the predetermined position; A first bottom plate portion having a first notch portion having a front side portion and a first side portion and a cable from the first electronic device inserted through the first front side portion;
A first cable duct having a first side plate portion provided on the first side portion and having a first window portion through which a cable from the first electronic device can be inserted;
A third electronic device having a vertical height position higher than the predetermined position and a fourth electronic device having a vertical height position lower than the predetermined position; A second bottom plate having a second front side and a second side and a second notch through which the cable from the third electronic device is inserted into the second front side; ,
A second cable duct having a second side plate portion provided on the second side portion and having a second window portion through which a cable from the third electronic device can be inserted;
A bridge that bridges the first window and the second window, and a first bridge that allows insertion of a cable from the first electronic device and a cable from the third electronic device;
The cable from the second electronic device is inserted through a through-hole provided in the bottom plate of the first casing, and the cable is formed from below the bottom plate of the first casing and the bottom plate of the second casing. A cable duct system, wherein the fourth electronic device is reached through a through hole provided in a bottom plate of a second housing. The cable duct system further includes
A cable disposed on the top plate of the third housing having the fifth electronic device, having a third front side portion and a rear side portion, and a cable from the fifth electronic device on the third front side portion A third bottom plate portion having a third notch portion through which is inserted;
A third cable duct having a third back plate portion provided on the third rear side portion and provided with a window portion through which a cable from the fifth electronic device can be inserted;
A window portion of a first back plate portion of the first bottom plate portion of the first cable duct;
The second back plate portion has a second bridge portion that bridges the window portion of the third back plate portion and through which the cable from the first electronic device and the cable from the fifth electronic device can be inserted. The cable duct system according to claim 7.