JP6237718B2 - Cable holding structure, rack cabinet, and method - Google Patents

Description

  The present invention relates to a technique for holding a cable connected to an electronic device mounted in a rack cabinet.

  Rack cabinets capable of mounting one or more electronic devices are known. In such rack cabinets, electronic devices have been mounted in large quantities as their size has been reduced. For this reason, the number of power cables and signal cables connected to each electronic device is increasing in the rack cabinet. As the number of cables increases, how to easily connect cables in a rack cabinet, how to store cables, and how to process a large amount of cables has become a major issue.

  In recent years, the power consumption of each device has increased in proportion to the improvement in processing capability of the electronic device, and it has become a problem how to efficiently discharge the heat generated from each electronic device. In the rack cabinet, the efficiency of cooling is enhanced by unifying the cooling method of each electronic device to a method of taking outside air from the front and exhausting it to the back.

  On the other hand, in the rack cabinet, since the connectors of the power supply and communication cables are concentrated on the back of each electronic device, a large number of cables are wired on the back of the rack mount. In general, cable processing for signals and the like is often performed in a cabinet by dropping a cable in an interdigital manner from an electronic device. Therefore, when connecting cables from the upper electronic device in the cabinet, when mounting the lower electronic device, the interdigital cable hanging from the upper part obstructs the mounting work. There is. Further, when a failure occurs while the electronic device is in operation, the cable is dropped in an interlaced manner, so that there is a problem that a failure detection LED (light emitting diode) installed near the connector is very difficult to see. Also, individual electronic devices are often composed of one or more units arranged in alignment within the electronic device. For this reason, the cable connected to each unit erodes the maintenance work space of the adjacent unit, and if the cable or the unit's cable is contacted during maintenance or replacement of the unit, the other unit will fail. is there. In addition, since a large number of cables are confused and routed on the exhaust side of each electronic device, there is a problem that heat dissipation efficiency due to exhaust from the back surface of each electronic device is hindered.

  An example of a technique related to these problems is described in Patent Document 1. The related art described in Patent Literature 1 uses a rake-shaped cable support mounted on the left and right columns of the rack cabinet to hold the signal cables connected to the electronic device in a left-right order and order.

  Another example of a technique related to such a problem is described in Patent Document 2. In the related art described in Patent Document 2, an auxiliary rail is assembled in the front-rear direction of the rack cabinet, and a substantially U-shaped cable guide portion having right and left wall surfaces is provided on the auxiliary rail. The cable disposed in the front-rear direction is placed on the cable guide. In this related technique, a plurality of openings are provided on the bottom surface of the cable guide. A cable arranged in the vertical direction is inserted through the opening.

  Another example of the technique related to such a problem is described in Patent Document 3. In the related art described in Patent Document 3, a clamp having a cable guide is provided on a cable bar attached to a pair of brackets extending rearward from a patch panel frame to which a plurality of connectors are connected. The clamp secures and holds the cable extending from the connector by pivoting the latch member from the open position to the closed position.

JP 2007-324427 A JP 2012-235068 A JP 2006-275283 A

  However, each related technology described above has the following problems.

  Although the related technique described in Patent Document 1 sorts and arranges signal cables left and right, the cables are still not arranged near the cable connection surface of each unit mounted on the electronic device. Moreover, although the related technique described in patent document 2 can bundle a signal cable in the front-back direction or the up-down direction, the cable is still unorganized in the vicinity of the cable connection surface of each unit mounted in an electronic device. It becomes.

  For this reason, these related techniques are insufficient to eliminate the reduction in heat dissipation efficiency due to the mixing of a large amount of cables near the back of the unit and the difficulty in viewing the failure detection LED. Moreover, these related technologies cannot prevent a cable connected to one unit from eroding the maintenance work space of another unit. For this reason, these related technologies cannot solve the problem of causing a failure in another unit due to contact during maintenance work of the unit or its cable.

  Moreover, although the related technology described in Patent Document 3 holds the cable extending from the connector rearward to arrange the cable near the connector to some extent, the cable processing in units of units mounted in the electronic device Not considered. For this reason, in this related technology, it is not possible to prevent a cable connected to a certain unit from eroding the maintenance work space of another unit.

  The present invention has been made to solve the above-described problems. That is, the present invention is connected to each unit so as to facilitate maintenance work in units of units constituting the electronic device mounted in the rack cabinet and to further reduce the influence on units not subject to maintenance. It is an object to provide a technology for holding a cable.

  In the rack cabinet, the cable holding structure of the present invention is provided for each unit constituting an electronic device to be mounted, and the bracket is installed at a position spaced in the normal direction with respect to the cable connection surface of the unit; The bracket includes a clamp attached to a position that holds each cable connected to the corresponding unit in a direction normal to the cable connection surface.

  The rack cabinet of the present invention includes the above-described cable holding structure.

  In addition, the method of the present invention can be applied to a bracket that is provided for each unit that constitutes an electronic device to be mounted in a rack cabinet and that is installed at a position that is separated from the cable connection surface of the unit in the normal direction. The cable is held by using a clamp attached to a position that holds each cable connected to the unit in a direction normal to the cable connection surface.

  The present invention provides a cable connected to each unit so as to facilitate maintenance work in units of units constituting an electronic device mounted in a rack cabinet and to further reduce the influence on units not subject to maintenance. Can be provided.

It is a figure which shows typically the structure of the rack cabinet and cable holding structure as embodiment of this invention. It is a figure which shows typically the state which routed the cable by the rack cabinet and cable holding structure as embodiment of this invention. It is a figure which shows an example of the electronic device mounted in the rack cabinet as embodiment of this invention. It is a disassembled perspective view which shows the example of mounting of the rack cabinet and cable holding structure as embodiment of this invention. It is a figure which shows the state which routed the cable in the mounting example of the rack cabinet and cable holding structure as embodiment of this invention. It is a figure which shows typically the state at the time of the maintenance work in the rack cabinet and cable holding structure as embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A configuration of a rack cabinet 1 as an embodiment of the present invention is shown in FIG. In FIG. 1, the rack cabinet 1 has a cable holding structure 10. The cable holding structure 10 includes a bracket 11 and a clamp 12.

  The rack cabinet 1 accommodates one or more electronic devices 9. For example, each electronic device 9 is mounted on the rack cabinet 1 in the vertical direction, which is the height direction or the vertical direction of the rack cabinet 1. In the example of FIG. 1, each electronic device 9 is mounted on a pair of mounting members 104 provided in the front-rear direction on both side surfaces of the rack cabinet 1. The electronic device 9 has one or more units 90. In the electronic device 9, the units 90 are arranged in a line or a plurality of lines. For example, the units 90 are arranged in the left-right direction, which is the width direction of the rack cabinet 1. Further, the cable connection surfaces 91 of the aligned units 90 are exposed on the same surface of the electronic device 9. A connector 901 to which the cable 92 is connected is disposed on the cable connection surface 91. Here, the surface of the electronic device 9 from which the cable connection surface 91 is exposed is referred to as the back surface of the electronic device 9. In addition, the surface of the rack cabinet 1 facing the back surface of the electronic device 9 is referred to as the back surface of the rack cabinet 1.

  Although FIG. 1 shows one electronic device 9, the number of electronic devices mounted in the rack cabinet of the present invention is not limited. Further, although three units 90 are shown in FIG. 1, the number of units constituting the electronic device in the present invention is not limited. Moreover, although the three cable holding structures 10 are shown in FIG. 1, the number of cable holding structures provided in the rack cabinet of the present invention is not limited. Moreover, although the four clamps 12 attached to one cable holding structure 10 are shown in FIG. 1, the number of the clamps 12 which the cable holding structure of the present invention has is not limited. 1 shows four connectors 901 arranged on the cable connection surface 91 of one unit 90, the number of cables connectable to the unit of the present invention is not limited.

  The bracket 11 is provided for each unit 90 included in the electronic device 9 to be mounted in the rack cabinet 1. However, the number of brackets 11 is not necessarily the same as the number of units 90, but it is desirable that at least the number of units 90 be provided. Further, the bracket 11 is installed at a position that is separated in the normal direction from the cable connection surface 91 of the corresponding unit 90 (a position that is separated from the cable connection surface 91 in the normal direction). Each bracket 11 is attached with a plurality of clamps 12 to be described later that can hold the cable 92 connected to each unit 90 at a position away from the cable connection surface 91 in the normal direction in the length direction of the bracket 11. .

  For example, in FIG. 1, the rack cabinet 1 has a cable bar 101 installed in the left-right direction on the back surface thereof. In this case, the bracket 11 may be attached to the cable bar 101. In this case, it is assumed that the cable bar 101 is attached at a position where the maintenance work space of the unit 90 is not eroded in the rack cabinet 1. In this case, the electronic device 9 is installed such that the back surface thereof is separated from the cable bar 101.

  The bracket 11 is preferably detachable from the rack cabinet 1. If the bracket 11 is attached to the cable bar 101 described above, the bracket 11 is preferably detachable from the cable bar 101.

  The clamp 12 is attached to the bracket 11. As described above, the attachment position of the clamp 12 is a position where each cable 92 connected to the corresponding unit 90 can be held in the normal direction with respect to the cable connection surface 91. Further, the shape of the clamp 12 may be, for example, a rectangular frame (a U-shape) with one side opened. Alternatively, the clamp 12 may have a hook shape. The shape of the clamp 12 is not limited to these, and may be any shape that can hold the cables 92 individually. In addition, it is desirable that one bracket 11 is attached with a number of clamps 12 equal to or more than the number of cables 92 that can be connected to the corresponding unit 90.

  FIG. 2 shows a state in which the cable 92 connected to each unit 90 of the electronic device 9 is routed using the cable holding structure 10 configured as described above. As shown in FIG. 2, the clamp 12 linearly connects each cable 92 connected to each unit 90 of the electronic device 9 in the normal direction with respect to the back surface of the electronic device 9 (the cable connection surface 91 of the unit 90). Hold on. Thus, since the bracket 11 is provided for each unit 90, the cables 92 of the plurality of units 90 are arranged without being mixed. FIG. 2 shows the cable 92 from the connector 901 to being held by the clamp 12, and the illustration of the cable 92 beyond that is omitted. The further cable 92 can be processed by distributing the left and right using a known technique.

  Next, mounting examples of the rack cabinet 1 and the cable holding structure 10 will be described with reference to FIGS.

  FIG. 3 is a view of an example of the electronic device 9 mounted on the rack cabinet 1 as viewed from the back. In this example, in the electronic device 9, 18 units 90 are arranged in two rows in the up-down direction and 9 units in the left-right direction, that is, arranged in two rows in the left-right direction. Each unit 90 is disposed in the electronic device 9 such that the cable connection surface 91 is exposed on the back surface of the electronic device 9. Each unit 90 can be inserted and removed in the front-rear direction. Also, on the cable connection surface 91 of the unit 90, four connectors 901, exhaust ports 902, and failure detection LEDs 903 to which four cables 92 can be connected are arranged.

  4 is an exploded perspective view of a part of the cable holding structure 10 before holding the cable cabinet 92 and the rack cabinet 1 on which the electronic device 9 shown in FIG. In this mounting example, the rack cabinet 1 includes a cable bar 101 having a cable clamp 102 and a mount angle 103. The cable holding structure 10 is attached to the cable bar 101. In FIG. 4, since the cable bar 101 to which the cable holding structure 10 is attached is not attached to the rack cabinet 1, the cable 92 connected to each unit 90 is dropped from the electronic device 9 in a comb shape. Yes.

  The mount angle 103 is provided on one side of the rack cabinet 1 at least on the left and right sides of the rear surface. The mount angle 103 has an attachment hole for attaching the electronic device 9, a support member of the electronic device 9, or other various members.

  The cable bar 101 can be attached to the mounting hole of the mount angle 103 so as to be installed in the left-right direction on the back surface of the rack cabinet 1. Further, the cable bars 101 are installed by the number of units 90 arranged in the target electronic device 9. Further, the cable bar 101 is installed at a position where the maintenance work space such as insertion / extraction of the unit 90 with respect to the electronic device 9 is not eroded. In this example, as described above, the units 90 are mounted in the electronic device 9 so as to be aligned in two rows in the left-right direction. For this reason, two cable bars 101 are installed for the electronic device 9.

  Moreover, the cable bar 101 has the cable clamp 102 each in the vicinity of the edge part of the left-right direction. The cable clamp 102 holds a plurality of cables 92.

  The brackets 11 are prepared for at least the number of units 90 included in the target electronic device 9 and are fixed to the cable bar 101 with screws. The bracket 11 can be removed from the cable bar 101 by removing screws. That is, the bracket 11 is configured to be detachable from the cable bar 101. As described above, it is desirable that the bracket 11 be easily detachable from the cable bar 101. In this example, as described above, 18 units 90 are mounted on the electronic device 9 in an array of 9 in 2 rows. For this reason, nine brackets 11 are fixed to each cable bar 101. Each bracket 11 is attached to a position on the cable bar 101 that is separated from the cable connection surface 91 of the corresponding unit 90 in the normal direction.

  The clamps 12 are prepared for at least the number of cables 92 connectable to the corresponding units 90 for each bracket 11, and are fixed to the brackets 11. In this example, as described above, four cables 92 can be connected to each unit 90. For this reason, four clamps 12 are attached to each bracket 11. Each clamp 12 is attached to a position on the bracket 11 that holds the corresponding cable 92 in the normal direction with respect to the cable connection surface 91.

  Next, a state where the cable bar 101 to which such a cable holding structure 10 is attached is attached to the rack cabinet 1 and the cable 92 is held is shown in FIG.

  FIG. 5 is a view of the rack cabinet 1 as seen from the back. The bracket 11 corresponding to each unit 90 of the electronic device 9 is connected to the back surface of the electronic device 9 with four cables 92 connected to the corresponding unit 90 by four clamps 12 attached to itself. It is held linearly in the normal direction. Further, the cable 92 held by the bracket 11 with the clamp 12 is distributed in the left and right directions by any one of the cable clamps 102 near the left and right ends of the cable bar 101. Thus, the four cables 92 connected to each unit 90 are distributed in the left and right directions without eroding the maintenance work space of the other units 90 and routed to the connection destination.

  As described above, the cable holding structure 10 secures a large work space for maintenance work such as mounting and replacement of the electronic device 9, the unit 90, or the cable 92 by individually holding the cables 92 in units of the units 90. ing. As a result, the cable holding structure 10 can prevent a failure that is outside the maintenance target by contacting the cable 92 of the unit 90 that is not the maintenance target during maintenance work of the electronic device 9, the unit 90, or the cable 92 thereof. As a result, the cable holding structure 10 makes maintenance work of the electronic device 9, the unit 90, or the cable 92 safer and easier. Further, the cable holding structure 10 eliminates a decrease in heat radiation efficiency caused by a large amount of cables 92 closing the exhaust port 902 of the unit 90 and difficulty in seeing the failure detection LED 903.

  Next, in the rack cabinet 1 in which the cable 92 is routed using the cable holding structure 10, a state in which maintenance work is performed for each unit 90 constituting the electronic device 9 is shown in FIG. 6. In FIG. 6, it is assumed that unit replacement is performed as a maintenance operation for the unit 90 shown on the leftmost side. As shown in FIG. 6, during the maintenance work of the unit 90, each cable 92 connected to the unit 90 is removed from the clamp 12 of the bracket 11 corresponding to the unit 90. And the bracket 11 with the clamp 12 corresponding to the unit 90 is removed from the rack cabinet 1 (cable bar 101). Thereby, the maintenance work space of the target unit 90 is reliably ensured.

  Next, effects of the embodiment of the present invention will be described.

  The embodiment of the present invention provides each unit with a maintenance work that makes it easier to carry out the maintenance work in units of units constituting the electronic device mounted in the rack cabinet, and further reduces the influence on the units not subject to maintenance. The cable to be connected can be held.

  The reason will be described. In the present embodiment, a bracket is provided for each unit constituting an electronic device mounted on the rack cabinet. In the rack cabinet, each bracket is installed at a position that is separated from the cable connection surface of the corresponding unit in the normal direction. This is because a clamp is attached to each bracket at a position where each cable connected to the corresponding unit is held in the normal direction to the cable connection surface.

  Thereby, this Embodiment hold | maintains the cable connected to each unit which comprises the electronic device mounted in a rack cabinet linearly in a normal line direction with respect to the cable connection surface of each unit in a unit unit. . In this embodiment, the cable held by the clamped bracket does not erode the maintenance work space of other units. As a result, this embodiment prevents contact with a cable connected to another unit during maintenance work of a certain unit or a cable connected thereto. Further, even if there is a contact, in the present embodiment, cables connected to other units are individually linearly held and fixed to the cable connection surfaces. Therefore, this embodiment can prevent a failure that occurs in another unit during maintenance of a certain unit or a cable connected thereto.

  Furthermore, when the bracket with a clamp described above is configured to be detachable from the rack cabinet, the present embodiment has an additional effect of facilitating maintenance and replacement work in units.

  The reason is that brackets with clamps for holding cables are prepared for each unit, and each is configured to be detachable. Thereby, in this Embodiment, the maintenance work space of the unit can be taken large by removing the bracket with a clamp corresponding to the unit for maintenance from a rack cabinet. Further, in the present embodiment, the cable connected to the unit not subject to maintenance work is linearly held in the normal direction by the bracket with a clamp corresponding to the unit. For this reason, in this embodiment, the maintenance work space of the maintenance target unit is not eroded by the cables of other units.

  As described above, this embodiment facilitates cable connection work, connection check work, visual recognition of the failure detection LED, and recovery wiring / processing work to the units constituting the electronic device mounted on the rack cabinet. In addition, since the present embodiment makes it easier to connect and lay on site, check work, and work during maintenance, the number of work steps can be greatly reduced.

  Further, according to the present embodiment, a bracket with a clamp is arranged linearly in a normal direction with respect to a cable connection surface with a large number of cables connected to each unit constituting a large number of electronic devices mounted on a rack cabinet. Hold. As a result, this embodiment does not block the exhaust port of the electronic device in the vicinity of the cable connection surface, and prevents a reduction in heat radiation efficiency due to exhaust from the back surface of each electronic device due to heat accumulation. Furthermore, the present embodiment eliminates the difficulty of seeing the cable without blocking the failure detection LED near the cable connection surface with the cable.

  In the present embodiment, the description has been made mainly on the example in which the bracket is configured to be detachable from the rack cabinet. The bracket is not limited to this, and the bracket may be attached to the rack cabinet so as to be displaceable between the maintenance work space and the maintenance work space of the corresponding unit. For example, in the mounting example shown in FIG. 4, each bracket may be configured to rotate and fall in the normal direction with respect to the cable connection surface with the end point attached to the cable bar as a fulcrum. The rotation angle may be about 90 degrees, for example. In this case, each bracket should just be attached to the cable bar by the hinge. Moreover, the cable bar should just be attached with the stopper which fixes each bracket to a cable holding position. With such a configuration, the present embodiment has the same effects as described above, and further eliminates the need for attaching and detaching the brackets during maintenance work, and can further reduce work man-hours and time.

  Moreover, in this Embodiment, it demonstrated centering on the example in which a bracket is attached to a cable bar. However, the bracket is not limited to this, and may be attached to another component constituting the rack cabinet as long as the bracket is located away from the cable connection surface of the corresponding unit.

  Further, the present invention is not limited to the above-described embodiment, and can be implemented in various modes.

DESCRIPTION OF SYMBOLS 1 Rack cabinet 9 Electronic device 10 Cable holding structure 11 Bracket 12 Clamp 90 Unit 91 Cable connection surface 92 Cable 101 Cable bar 102 Cable clamp 103 Mount angle 104 Mounting member 901 Connector 902 Exhaust port 903 Fault detection LED

Claims (6)

In the rack cabinet, provided for each unit constituting the electronic device to be mounted, a bracket installed at a position spaced in the normal direction with respect to the cable connection surface of the unit;
In the bracket, a clamp attached to a position that holds each cable connected to the corresponding unit in a direction normal to the cable connection surface;
Cable holding structure with   The cable holding structure according to claim 1, wherein the bracket is detachably installed on the rack cabinet.   The cable holding structure according to claim 1, wherein the bracket is installed to be displaceable between a maintenance work space and a maintenance work space of the corresponding unit. In the rack cabinet, a plurality of the brackets corresponding to the plurality of units are attached to a cable bar that extends in the alignment direction of the plurality of units and is installed at a position not included in the maintenance work space of each of the plurality of units. The cable holding structure according to claim 1, wherein the cable holding structure is attached.

  A rack cabinet comprising the cable holding structure according to claim 1 and an electronic device connected to a cable held by the cable holding structure.   In the rack cabinet, each unit connected to the corresponding unit is provided for each unit constituting the electronic device to be mounted, and is installed at a position spaced in the normal direction with respect to the cable connection surface of the unit. A method of holding a cable using a clamp attached to a position for holding the cable in a normal direction with respect to the cable connection surface.