JP2008258440A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To conveniently and easily achieve the insertion and removal operations of a printed circuit board, while promoting miniaturization. <P>SOLUTION: A plurality of unit bodies 11, where a plurality of printed circuit boards are 12 are stored so as to be arranged side by side, are arranged stacked, and a cable wiring tool 15 in which a plurality of cable restraint sections 153 are arranged at predetermined intervals is formed freely turnable about the direction where the printed circuit boards 12 are arranged side by side, and the cable wiring tool 15 is turned at a first position, where the insertion and removal of the printed circuit board 12 is regulated and a second position where the insertion and removal of the printed circuit board 12 is made possible so that the insertion and removal of the printed circuit board 12 from the unit body 11 can be realized. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic device such as a communication device on which an optical unit is mounted, for example.

  Generally, in this type of electronic apparatus, a plurality of electronic units are accommodated and arranged in a stack in a rack, and a plurality of printed wiring boards are accommodated and arranged in parallel in the electronic unit. An external connection unit such as an optical unit is mounted on the printed wiring board. The external connection unit is connected to an external connection terminal arranged at an end of the printed wiring board, and an external connection cable is attached to the external connection terminal to construct a desired electronic device system.

  Recently, there has been a strong demand for miniaturization of electronic devices, and a method of promoting the miniaturization of an electronic unit by placing a printed wiring board accommodated in the electronic unit close to the electronic unit has been adopted. For this reason, in such an electronic device, the external connection cable becomes an obstacle at the time of maintenance and inspection in the electronic unit, and the insertion / removal operation of the printed wiring board becomes very troublesome.

Therefore, the cable pressing metal fittings are arranged so as to be rotatable between the plurality of printed wiring boards of the electronic unit, and the cable pressing metal fittings arranged so as to sandwich the printed wiring board to be inserted / removed are selected and rotated. Therefore, there has been proposed a configuration in which the external connection cable is expanded in the direction of escaping from the substrate and a desired printed wiring board is inserted and removed (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2002-1000088

  However, the above-described electronic device has a problem that the configuration becomes complicated because the cable pressing metal must be provided for each printed wiring board, resulting in a large size.

  The present invention has been made in view of the above circumstances, and is an electronic device that can be simplified in configuration and promoted to be miniaturized, and can be easily and easily realized by inserting and removing a printed wiring board. The purpose is to provide equipment.

  In the present invention, a plurality of printed wiring boards having external connection terminals provided on the base end side are arranged in parallel, and a unit main body that is detachably accommodated, and the plurality of unit main bodies are stacked and arranged. A rack and an opening side of the stacked unit main bodies are arranged along the direction in which the printed wiring boards are juxtaposed, and can be rotated around the juxtaposed direction. The printed wiring of the one unit main body A first position that restricts insertion / removal of the substrate, and a second position that enables insertion / removal of the printed wiring board, and is externally attached to an external connection terminal of the printed wiring board An electronic apparatus is configured by including a cable wiring tool in which a plurality of cable locking portions that lock the intermediate portion of the connection cable are provided in the juxtaposed direction.

  According to the above configuration, when the plurality of printed wiring boards of the electronic unit are rotated to the first position around the juxtaposed direction, the external connection cable is locked by the cable locking portion. Thus, the cable wiring tool prevents insertion / removal from the electronic unit. When the cable wiring tool is rotated to the second position, the cable wiring tool is separated, and the external connection cable is detached, so that the insertion / removal from the electronic unit can be performed. It becomes possible.

  As a result, in a state where a plurality of printed wiring boards are arranged side by side in the vicinity of the electronic unit, it is possible to insert and remove all by simply rotating the cable wiring tool, thereby promoting the miniaturization. In addition, simple and easy insertion / removal is realized, and the maintenance and inspection work can be simplified.

  As described above, according to the present invention, it is possible to provide an electronic device that can be simplified in configuration and promote miniaturization, and that can easily and easily realize insertion and removal of a printed wiring board. can do.

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

  1 and 2 show a part of an electronic device according to an embodiment of the present invention in a cutaway manner. FIG. 1 shows a state viewed from the front, and FIG. A view of arrow A is shown.

  That is, a plurality of unit main bodies 11 having a box shape constituting an electronic unit are accommodated and arranged in a stack in the rack 10 constituting the device casing. In the unit main body 11, a plurality of substrate guide grooves 111 constituting a pair are formed at upper and lower ends of the opening side (insertion / removal side) at predetermined intervals in an arrow X direction (parallel direction) (see FIG. 1). The The plurality of substrate guide grooves 111 are provided so as to extend in the directions of arrows B and C (see FIG. 2) perpendicular to the juxtaposed direction, and guide the both ends of the printed wiring board 12 so as to be insertable / removable.

  Further, the plurality of printed wiring boards 12 are provided with ejector mechanisms 13 at both ends on the base end side (corresponding to the opening side of the unit main body), for example, and both end portions thereof are provided with substrate guide grooves on the unit main body 11. Positioning in the unit main body 11 is performed by operating the ejector mechanism 13 while being inserted in the arrow B direction with respect to 111. The ejector mechanism 13 enables the printed wiring board 12 to be taken out from the unit main body 11 in the direction of arrow C when the reversing operation is performed.

  The plurality of printed wiring boards 12 are each provided with an optical connector 14 as an external connection terminal on the base end side. The optical connector 14 is connected to an optical unit (not shown) mounted on the printed wiring board 12.

  In the unit main body 11, a cable wiring tool 15 is disposed, for example, at the lower end on the opening side corresponding to the plurality of printed wiring boards 12. As shown in FIGS. 3 (a) and 3 (b), the cable wiring tool 15 is provided with attachment portions 151 at both ends thereof so as to be rotatable around the arrow Y direction via a hinge mechanism 152. The attachment portion 151 is screwed to the lower end of the unit body 11 on the opening side of the unit body 11 using, for example, a screw member 156 (see FIG. 1), and is detachably attached. The cable wiring tool 15 is interposed via the hinge mechanism 152. The unit main body 11 is arranged so as to be rotatable around the arrow Y direction on the lower end side.

  As a result, the cable wiring tool 15 has the first position (a position indicated by a solid line in the figure) for preventing the insertion and removal of the plurality of printed wiring boards 11 of the unit main body 11 and the hinge mechanism 152 as shown in FIG. 4 is rotated counterclockwise in FIG. 4, the second position (b indicated by a two-dot chain line in the drawing) enables insertion / removal of the plurality of printed wiring boards 12 accommodated in the upper unit main body 11. Position). In addition, when it is rotated clockwise, it is selected as the third position (c position indicated by a one-dot chain line in the figure) that enables insertion / removal of the plurality of printed wiring boards 12 housed in the lower unit body 11 Rotated.

  Further, the cable wiring tool 15 is provided with a plurality of cable locking portions 153 at predetermined intervals. The cable locking portion 153 is formed in a frame shape that can be partially opened with, for example, a resin material, and a protruding portion 154 is formed on one side thereof. The protrusion 154 of the cable locking portion 153 is attached to the cable wiring tool 15 so as to be rotatable about an axis orthogonal to the longitudinal direction thereof.

  An optical cable 16 connected to the optical connector 14 of the plurality of printed wiring boards 12 is selectively inserted into the plurality of cable locking portions 153 (see FIGS. 1 and 2). Support with a degree of freedom. The plurality of cable locking portions 153 guide the optical cable 16 to be supported when the cable wiring tool 15 is urged to rotate to the second position where it can be inserted and removed from the first position. The printed wiring board 12 in the main body 11 is arranged to be removable.

  Further, the cable wiring tool 15 is provided with a rotation restricting portion 155 facing the mounting portion 151. When the cable routing tool 15 is rotated from the first position in the clockwise direction in FIG. 4 via the hinge mechanism 152, the rotation restricting portion 155 comes into contact with the mounting portion 151 and the same as the cable routing tool 15. Rotation in the direction is restricted (position indicated by a one-dot chain line in the figure). Thereby, the optical cable 16 inserted through the cable locking portion 153 is reliably prevented from being damaged by being sandwiched between the cable wiring tool 15 and the unit main body 11.

  Also, the cable wiring tool 15 is provided with a plurality of display confirmation transmission windows 157 corresponding to the other unit main body 11 that is stacked. As a result, the cable wiring tool 15 can be confirmed through the transmission window 157 when the display unit such as the nameplate provided on the other unit main body 11 is confirmed at the second position where the printed wiring board 12 can be inserted and removed. Highly safe insertion / removal work can be performed.

  In the rack 10, surplus length members 17 constituting a surplus length mechanism for so-called cable surplus length processing are arranged along the stacking direction of the unit main bodies 11. The extra length member 17 is provided with an attachment portion 174, and the attachment portion 174 is detachably attached to the rack 10 using a screw member 171. A plurality of extra length cable locking portions 172 are arranged on the extra length member 17 at desired intervals so that the optical cable 16 can be wound with a desired curvature (see FIGS. 5 and 6).

  The extra-length cable locking portion 172 is formed in a frame shape that can be elastically deformed with, for example, a resin material, and a protruding portion 173 is formed on one side thereof. Then, the protrusion 173 of the extra length cable locking portion 172 is attached to the extra length member 17 so as to be rotatable about the axis. As a result, the optical cable 16 inserted through the cable locking portion 153 of the cable wiring tool 15 is wound around the extra length cable catching portion 172 of the extra length member 17 and is subjected to extra length processing to be connected to an external device (not shown). As a result, high-quality wiring connection between the optical connector 14 of the printed wiring board 12 in the unit main body 11 becomes possible.

  In the above configuration, the cable wiring tool 15 has the attachment portion 151 attached to the lower ends of the opening sides of the plurality of unit main bodies 11 using the screw members 156, and the plurality of unit main bodies 11 are stacked in the rack 10. It is accommodated and arranged in a shape. In the stacked unit body 11, the printed wiring board 12 is inserted and accommodated in the pair of board guide grooves 111, the ejector mechanism 13 is operated and positioned, and the optical connector 14 of the printed wiring board 11 is placed. The optical cable 16 is connected to.

  At this time, the optical cable 16 is locked and wired by the cable locking portion 153 of the cable wiring tool 15 and the excess length cable locking portion 172 of the excess length member 17, and the system operation is performed. In this system operation state, the cable wiring tool 15 is rotated to the first position indicated by the solid line in FIG. 4, and the insertion / removal of the printed wiring board 12 in the unit main body 11 is prevented.

  When the printed wiring board 12 needs to be removed for maintenance and inspection of the unit main body 11, the cable wiring tool 15 is connected to the second dashed line in FIG. 4 via the hinge mechanism 152. First, the optical fiber 16 connected to the optical connector 14 of the printed wiring board 12 to be inserted / removed is removed.

  In this state, the printed wiring board 12 is pulled out in the direction of the arrow C by the reversing operation of the ejector mechanism 13, and maintenance inspection including board replacement is performed. At this time, the optical fiber 16 connected to the optical connector 14 of the adjacent printed wiring board 12 is sufficient for the cable locking portion 152 of the cable wiring tool 15 and the excess length cable locking portion 172 of the excess length member 17. By winding and wiring with a certain amount of play, the insertion / removal operation of the printed wiring board 12 from the unit main body 11 is not affected.

  Further, the cable wiring tool 15 is opposed to the display such as the nameplate of the unit main body 11 in which the transmission window 157 is arranged on the lower side at the second position, and the display is visually recognized through the transmission window 157. The accommodation state of the printed wiring board 12 of the unit main body 11 can be confirmed.

  As described above, the electronic apparatus includes a plurality of printed wiring boards 12 arranged side by side, and a plurality of cable locking portions 153 provided on the unit body 11 arranged in a stacked manner. The cable wiring tool 15 arranged at intervals is provided so as to be rotatable around the direction in which the printed wiring boards 12 are arranged, and the cable wiring tool 15 is inserted into the first position for restricting insertion / removal of the printed wiring board 12. The printed wiring board 12 is configured to be selectively inserted into and removed from the unit main body 11 by rotating to a second position where it can be detached.

  According to this, when the cable wiring tool 15 is rotated to the first position, the plurality of printed wiring boards 12 of the unit body 11 are in a state where the optical cable 16 is locked by the cable locking portion 153. The cable wiring tool 15 prevents insertion / removal from the unit main body 11, and when the cable wiring tool 15 is rotated to the second position, the cable wiring tool 15 is separated and can be inserted / removed from the unit main body 11.

  As a result, a plurality of printed wiring boards 12 can be inserted / removed by simply rotating the cable wiring tool 15 in a state in which the plurality of printed wiring boards 12 are arranged in close proximity to the unit main body 11, thereby facilitating downsizing. In addition, simple and easy insertion / removal of the printed wiring board 12 is realized, and the maintenance and inspection work can be simplified.

  In the above-described embodiment, a case has been described in which the present invention is applied to an electronic apparatus system in which the optical connector 14 is provided as an external connection terminal on the plurality of printed wiring boards 12 accommodated in parallel with the unit main body 11. Without being limited thereto, the present invention can also be applied to an electronic device system in which an electrical connector is provided as an external connection terminal, and similarly effective effects are expected.

  Further, in the above embodiment, the case where the cable wiring tool 15 is configured to be arranged at the lower end on the opening side of the unit main body 11 has been described. However, the present invention is not limited to this and is arranged on the upper end side of the unit main body. It is also possible to configure as described above.

  Furthermore, in the above-described embodiment, the case where the unit body 11 is applied to a unit structure in which the unit main body 11 is stacked on the rack 10 has been described. However, the present invention is not limited to this, and can be applied to other unit structures. Expected to be effective.

  Therefore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

  For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the effect of the invention can be obtained. In such a case, a configuration in which this configuration requirement is deleted can be extracted as an invention.

It is the figure which showed the state which fractured | ruptured some electronic devices which concern on one embodiment of this invention, and was seen from the insertion / removal side. It is the figure which showed the AA arrow of FIG. FIGS. 1A and 1B show the cable wiring tool taken out of FIG. 1, in which FIG. 1A shows a state seen from the upper surface side, and FIG. 1B shows a state seen from the front side. FIG. 2 is a diagram showing an operation state of the cable wiring tool of FIG. It is the figure which showed the state which looked at the surplus length member of FIG. 1 from the upper surface side. It is the figure which showed the state which looked at the surplus length member of FIG. 1 from the front side.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Rack, 11 ... Unit main body, 111 ... Board | substrate guide groove, 12 ... Printed wiring board, 13 ... Ejector mechanism, 14 ... Optical connector, 15 ... Cable wiring tool, 151 ... Mounting part, 152 ... Hinge mechanism, 153 ... Cable Locking portion, 154... Projection portion, 155... Rotation restricting portion, 156... Screw member, 157... Transmission window, 16 .. Optical cable, 17. 173... Projection, 174.

Claims (6)

A plurality of printed wiring boards provided with external connection terminals on the base end side are arranged side by side, and a unit main body that is detachably accommodated,
A rack in which the plurality of unit bodies are stacked and arranged;
Arranged on the opening side of the stacked unit main bodies along the direction in which the printed wiring boards are arranged side by side, is rotatable about the direction in which the printed wiring boards are arranged, and is inserted into the printed wiring board of the one unit main body. A first position that regulates removal, and a second position that enables insertion and removal of the printed wiring board, and an external connection cable attached to an external connection terminal of the printed wiring board A cable wiring tool in which a plurality of cable locking portions for locking the intermediate portion are provided in the juxtaposed direction;
An electronic apparatus comprising:   The electronic device according to claim 1, wherein the cable wiring tool is provided with a rotation / rolling restriction portion that restricts rotation from the first position to a direction opposite to the second position direction.   The rack is provided with a surplus length member that is locked to the cable locking portion of the cable wiring tool and locks the proximal end side of the external connection cable that is attached to the external connection terminal of the printed wiring board. The electronic device according to claim 1, wherein:   4. The electronic device according to claim 1, wherein the cable wiring tool is provided with a transmission window for confirming the display of the other electronic unit stacked in the second position. 5. .   5. The electronic device according to claim 1, wherein the cable locking portion of the cable wiring tool is provided so as to be rotatable about an axis orthogonal to the juxtaposed direction.   6. The electronic apparatus according to claim 1, wherein the external connection cable is an optical cable.

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