JP4375033B2 - Subrack for board unit - Google Patents

Description

  The present invention relates to a subrack for arranging and storing printed circuit boards, and more particularly to an apparatus for facilitating identification of printed circuit boards to be inserted and removed.

  Subrack main bodies that are required to accommodate a large number of printed circuit boards are configured such that each printed circuit board is stored in parallel along a plurality of rails provided on the bottom plate part that constitutes the subrack main body. The

  In addition, each printed circuit board housed in a predetermined position in the subrack body needs to be removed from the subrack body due to a failure or the like. In this case, since a large number of printed circuit boards are arranged, the operator may accidentally remove a printed circuit board that is different from the printed circuit board to be removed, or store it on a rail different from the predetermined storage position. Becomes complicated. Therefore, it is important to easily identify the printed circuit board that is inserted into and removed from the subrack body.

  Conventionally, there has been one described in Patent Document 1 as a related technique. The erroneous insertion prevention mechanism described in Patent Document 1 relates to a housing that can accommodate and store printed circuit boards along rails. In this case, a decorative plate is attached to the surface of a shelf that partitions the storage area up and down, and the decorative plate is provided with a notch. And the nail | claw is provided in the front panel attached to the edge of each printed circuit board accommodated along each rail so that it may become a pair with this notch.

  Therefore, when the printed circuit board is stored in different rails, the front panel claw comes into contact with the decorative plate, so that the front panel and the printed circuit board are not further inserted into the housing, and erroneous insertion can be prevented.

  However, the invention described in Patent Document 1 cannot determine whether it is an erroneous insertion unless it is once inserted. Furthermore, when the printed circuit board is still removed from the housing, the printed circuit board to be removed cannot be identified, so that there is a possibility that a different printed circuit board is removed.

JP-A-5-259663

Therefore, as a means to prevent accidental insertion / removal of the printed circuit board to / from the subrack body, it is conceivable to attach an identification plate with identification information for identifying the printed circuit board to the upper part of the front panel. The height of the subrack body is increased by attaching the identification plate to the panel.
In addition, the substrate unit subrack conforming to the IEC60297 standard, the IEC60917 standard, or the IEEE1101 standard has the height of the subrack body defined, and the height of the front panel is substantially the same as the height of the subrack body. Therefore, the identification plate as described above cannot be attached. That is, in the IEC60917 standard, the height of the subrack main body is 132.6 mm, and the front panel is mounted with a 1.5 mm gap between the top and bottom. Therefore, although it is theoretically possible to attach the identification plate to an area of 1.5 mm, it is impossible to actually attach the identification plate.

  The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to make it possible to identify the storage location of a printed circuit board to be inserted and removed without increasing the height dimension of the subrack. To do.

In the present invention, a plurality of printed circuit boards are inserted from the front opening side, the subrack main body for arranging and storing the printed circuit boards, and the printed circuit board are attached, and the ends are screwed to the front opening of the subrack main body. A front panel, a screw hole provided at an end of the front panel through which the screw for screwing passes, a top hole side or a bottom side of the front opening of the subrack main body, the screw of the front panel The mounting plate is provided with a mounting portion for mounting the screw penetrating the use hole, the mounting plate is configured to be removable, and identification information for identifying the printed circuit board is attached in the vicinity of the mounting portion of the mounting plate. The area of the front panel end corresponding to the position where the identification information is attached is cut out so that the identification information can be visually recognized. One in which the.

  According to the present invention, the identification information for identifying the printed circuit board is attached to the mounting plate to which the front panel is attached, and the front panel end region is cut out so that the identification information is visible. The storage location of the printed circuit board to be inserted / removed can be easily recognized without increasing the height of the subrack body, and the workability can be improved.

Embodiment 1 FIG.
The configuration of the subrack according to the first embodiment will be described with reference to FIGS. 1 is a block diagram showing a rack for housing a subrack, FIG. 2 is a perspective view showing a subrack body, FIG. 3 is a perspective view showing a substrate unit housed in the subrack body, and FIG. FIG. 5 is a configuration diagram showing a state in which the board unit is fixed to the sub-rack main body with an insertion / extraction lever, and FIGS. 6 and 7 are configurations of a front rail attached to the sub-rack main body. FIG. 8 is a perspective view showing a state in which a printed circuit board is accommodated in the subrack body, and FIG. 9 is an enlarged perspective view showing a main part in a state in which the printed circuit board is accommodated in the subrack body.

  In FIG. 1, a plurality of the same subrack 1 are stacked and accommodated in a rack 2. Further, the height of the inner wall of the rack 2 is designed to be optimal for stacking the sub-rack 1 having a size conforming to the IEC60297 standard, and the height of the inner wall of the rack 2 is 1U (1U = 19 inch). It is formed to an integral multiple of.

  FIG. 2 is a perspective view showing the subrack main body 10. The subrack main body 10 constituting the subrack 1 includes a bottom plate 11 and a top plate 12, and two side plates 13 and 14 and a back plate 15 and screws. Thus, a housing having an opening formed on the front surface is formed. Further, a partition plate 16 is provided inside the subrack main body 10, and a plurality of adapters 17 connected in parallel to connectors 25 attached to a substrate unit 20 described later are provided in parallel on the partition plate 16. . A plurality of rails 18 are arranged in parallel on the bottom plate 11 corresponding to the mounting position of the adapter 17. The rail 18 functions as a guide rail when a printed circuit board 22 described later is stored in the subrack main body 10.

  FIG. 3 is a perspective view of a board unit housed in the subrack main body 10. The board unit 20 has a printed board 22 mounted with electronic components 26 on the back surface of a front panel 21 made of metal. . Also, a screw hole 23 is formed on the upper surface side of the front panel 21, and an insertion / extraction lever used to insert the printed circuit board 22 into the subrack main body 10 and to remove it from the subrack main body 10 on the lower surface side. 24 is provided. Further, a connector 25 that is electrically connected to an external adapter is attached to an end portion of the printed board 22 in the insertion direction. Further, the front panel 21 has a notch 27 formed at the corner of the upper end.

  4, 6, and 7, a front rail 30 made of metal is attached to the front opening 12 of the top plate 12 constituting the subrack main body 10. The front rail 30 has two grooves 31 and 33 formed in parallel along the front surface of the top plate 12, and a fixed plate in which a screw hole 38 in which a female screw is cut is arranged in the groove 31 on the back side. 32 is inserted, and a guide plate 34 in which guide holes 36 for guiding insertion of the screws 35 screwed into the screw holes 38 are arranged is inserted into the groove 33 on the front surface side. Each guide plate 34 is marked with a different number 37 as identification information for identifying the printed circuit board 22 accommodated in the vicinity of each guide hole 36. The guide plate 34 is configured to be removable from the front rail 30 without being bonded and fixed to the front rail 30 with resin.

  Next, a method for attaching the substrate unit 20 to the subrack body 10 will be described with reference to FIGS. 2, 4, 5, and 8.

  An operator selects a desired rail 18 from a plurality of rails 18 provided on the subrack main body 10 with reference to the identification information 37, and inserts the printed circuit board 22 along the rail 18 into the subrack main body 10. With the insertion, the connector 25 of the printed circuit board 22 comes into contact with the adapter 17 provided on the partition plate 16. In this contacted state, the operator inserts the protruding portion 28 provided on the insertion / extraction lever 24 shown in FIG. 5 into the hole 19 provided on the bottom plate 11 and rotates it in the direction of arrow A in the figure. A force is applied in the direction of insertion into the subrack body 10. As a result, the connector 25 in contact with the adapter 17 is strongly inserted into the adapter 17 and the printed circuit board 22 and the adapter 17 are electrically connected. Thereafter, the screw 35 is screwed into the screw hole 38 of the fixing plate 32 through the screw hole 23 of the front panel 21 and the guide hole 36 of the guide plate 34, whereby the substrate unit 20 and the subrack body 10 are fixed. Make sure.

  When the substrate units 20 are arranged and stored in the subrack main body 10, as shown in FIG. 9, numerals 37 attached to the guide plates 34 are arranged at positions corresponding to the notches 27 formed in the front panel 21. It is comprised so that. Therefore, even when the board unit 20 is pulled out from the subrack main body 10, information for identifying each printed board can be visually recognized.

  Further, since the gasket 29 is provided around the front panel 21, when all the board units 20 are accommodated in the subrack main body 10, the front panels 21 are brought into close contact with each other from the printed board 22 and the electronic component 26. The emitted electromagnetic wave can be shielded. Further, since the front rail 30 made of metal is disposed at a position corresponding to the notch 27 formed in the front panel 21, it is possible to maintain the performance of shielding electromagnetic waves radiated from each printed circuit board 22.

  As described above, according to the substrate unit subrack according to the first embodiment, the operator can easily recognize the storage location of the substrate unit to be inserted / removed without increasing the height dimension. The effect is improved.

  Further, according to the sub-rack for the substrate unit according to the first embodiment, since it conforms to the IEC 60297 standard, the substrate unit can be efficiently mounted on a rack conforming to the IEC 60297 standard in which the inner wall is formed in an integral multiple of 1U. Subrack can be loaded.

  Further, since the notch 27 is provided at a position corresponding to the front rail 30 made of metal, the shield performance is not lowered even though the notch 27 is provided in the front panel 21. Yes.

  Furthermore, since the guide plate 34 is configured to be removable from the subrack main body 10, the guide plate 34 can be replaced with a guide plate on which characters indicating other identification information are written.

  As described above, the substrate unit subrack according to the first embodiment is to fix the front panel and the subrack with screws. Any joining member may be used. In addition, you may decide to attach the front panel 21 to the subrack main body 10 using the quick fastener (product number: 21100-804) marketed from Schroff Corporation.

  Further, the substrate unit subrack according to the first embodiment describes information for identifying the substrate on the guide plate 34, but the information for identifying the substrate is the top surface side or the bottom surface side of the subrack body 10. Any plate may be used as long as the plate is attached along the line. When the insertion / extraction lever (part number: 20817-620) sold by Schroff Corporation is used, the positioning pin protruding from the front panel is accommodated in the positioning hole formed in the subrack body 10. When doing so, the substrate identification information may be described on a positioning plate in which the positioning holes are arranged in parallel.

  Further, in the substrate unit subrack according to the first embodiment, the information for identifying the substrate describes numbers different for each arrayed substrate. Such identification information may be used.

  In addition, the substrate unit subrack according to the first embodiment has the guide plate 34 engraved with information for identifying the substrate, but the guide plate 34 has a seal with information for identifying the substrate attached thereto. It may be made to do.

  In the substrate unit subrack according to the first embodiment, the front rail 30 is made of metal, but the front rail 30 may be made by applying a metal paint to the surface of the main body made of resin. .

  Further, the substrate unit subrack according to the first embodiment conforms to the IEC60297 standard. However, the subrack external dimensions such as the IEC60917 standard, the IEEE1101 standard, etc. and the front panel attached to the front surface of the subrack are provided. The same effect can be obtained if the standards are formed in substantially the same dimensions.

It is a block diagram which shows the rack which concerns on Embodiment 1 of this invention. It is a block diagram which shows the subrack main body which concerns on Embodiment 1 of this invention. It is a block diagram which shows the board | substrate unit accommodated in the subrack main body which concerns on Embodiment 1 of this invention. It is a disassembled side view which shows the state by which the front panel was screwed by the subrack main body which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the state by which the front panel was fixed to the subrack main body which concerns on Embodiment 1 of this invention with the injector. It is a disassembled perspective view which shows the structure of the front rail attached to the subrack main body which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the state which accommodated the printed circuit board in the subrack main body which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which accommodated the printed circuit board in the subrack main body which concerns on Embodiment 1 of this invention. It is a perspective view which shows the principal part of the state which accommodated the printed circuit board in the subrack main body which concerns on Embodiment 1 of this invention.

Explanation of symbols

10: Subrack body, 21: Front panel,
22: Printed circuit board, 23: Screw hole,
27: Notch 32, 34: Mounting plate,
32: fixed plate, 34: guide plate,
36, 38: mounting portion, 37: identification information.

Claims (7)

A subrack body in which a plurality of printed circuit boards are inserted from the front opening side, and the printed circuit boards are arranged and stored;
A front panel to which the printed circuit board is attached and whose end is screwed to the front opening of the subrack body;
A screw hole provided at the end of the front panel through which the screw for screwing passes,
Provided with a mounting plate provided on the top or bottom side of the front opening of the subrack body and provided with a mounting portion for mounting the screw penetrating the screw hole of the front panel ;
This mounting plate is configured to be removable,
To the attachment portion near the mounting plate has been given the identification information for identifying the printed circuit board, the area of the front panel edge portion corresponding to the position identification information is attached is cut out by the identification information Sub-rack for board unit, characterized in that is configured to be visible. A sub-rack for a substrate unit conforming to the IEC 60297 standard, the IEC 60917 standard or the IEEE 1101 standard in which the front panel and the sub-rack main body have substantially the same height.
A sub-rack body in which a plurality of printed circuit boards are inserted from the front opening and the printed circuit boards are arranged and stored,
A front panel to which the printed circuit board is attached and whose end is screwed to the front opening of the subrack body;
A screw hole provided at the end of the front panel through which the screw for screwing passes,
Provided with a mounting plate provided on the top or bottom side of the front opening of the subrack body and provided with a mounting portion for mounting the screw penetrating the screw hole of the front panel ;
This mounting plate is configured to be removable,
To the attachment portion near the mounting plate has been given the identification information for identifying the printed circuit board, the area of the front panel edge portion corresponding to the position identification information is attached is cut out by the identification information Sub-rack for board unit, characterized in that is configured to be visible. It said mounting plate includes a fixed plate which is screwed to the screw, provided on the front side of the fixing plate consists of a guide plate for guiding the insertion of the screw,
The substrate unit subrack according to claim 1, wherein the identification information is attached to the guide plate. A subrack body in which a plurality of printed circuit boards are inserted from the front opening side, and the printed circuit boards are arranged and stored;
A front panel to which the printed circuit board is attached and an end is attached to the front opening of the subrack body;
A through hole provided at an end of the front panel, through which a mounting member for attaching the front panel to the subrack body passes,
Provided with a mounting plate provided on the top or bottom side of the front opening of the subrack main body and provided with a mounting portion for mounting the mounting member penetrating the through hole of the front panel ;
This mounting plate is configured to be removable,
To the attachment portion near the mounting plate has been given the identification information for identifying the printed circuit board, the area of the front panel edge portion corresponding to the position identification information is attached is cut out by the identification information Sub-rack for board unit, characterized in that is configured to be visible. A subrack body in which a plurality of printed circuit boards are inserted from the front opening side, and the printed circuit boards are arranged and stored;
A front panel to which the printed circuit board is attached and an end is attached to the front opening of the subrack body;
A mounting member provided at the end of the front panel, for attaching the front panel to the subrack body,
Provided on the top side or bottom side of the front opening of the subrack main body, provided with a mounting plate provided with a mounting portion for mounting the mounting member of the front panel ,
This mounting plate is configured to be removable,
To the attachment portion near the mounting plate has been given the identification information for identifying the printed circuit board, the area of the front panel edge portion corresponding to the position identification information is attached is cut out by the identification information Sub-rack for board unit, characterized in that is configured to be visible. The sub-rack for a substrate unit according to any one of claims 1 to 5, wherein the region of the end portion of the front panel is a region where a corner portion of the end portion is cut out. A front rail attached to the front opening of the top plate of the subrack body,
The sub-rack for a substrate unit according to any one of claims 1 to 6, wherein the mounting plate is provided in a front opening of the front rail.

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