JPH07336075A - Intermediating board structure - Google Patents

Abstract

PURPOSE:To obtain an intermediating board structure in which the structure of a package rack is not complicated, in which the waste of a mounting area is excluded and in which circuit boards of different sizes can be made slot-free. CONSTITUTION:In an intermdiating board structure in which circuit boards 25 of different sizes are mounted on a package rack, a plurality of intermdiating boards 11 of the same shape are installed on the package rack so as to be freely detachable, and guide means 23, 35 by which the circuit boards 25 can be inserted into, and pulled out, are installed on the intermediating boards 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay board structure for connecting a mother board and a daughter board (circuit board) in a communication control device or the like.

[0002]

2. Description of the Related Art In a communication control device, circuit boards having various interfaces are mounted in various combinations according to specifications. FIG. 6 is a perspective view of a package rack on which a circuit board is mounted. In this type of communication control device, the position of the insertion slot 3 in the package rack 1 is not limited by the type of circuit board, and is slot-free (method).
In order to realize the above, the size of the package rack 1 of the housing is formed in the unit (size) of the circuit board having the largest circuit scale,
Other circuit boards can be inserted into the package rack 1. Therefore, various circuit boards can be freely arranged and mounted regardless of the position of the insertion slot 3.

[0003]

However, in the above-described circuit board mounting structure, the package rack 1 is formed in accordance with the maximum size circuit board, so that a small size circuit board is inserted into the package rack 1. In that case, the mounting area of the board is wasted. For example, as shown in FIG. 7, there are circuit boards of types A to G, and twice the circuit boards A (B or C) are circuit boards D and E.
The size of the circuit board is three times as large as the circuit board A (B or C).
The size of the circuit board G is four times as large as the circuit board A (B or C).
The size of the package rack 1 is the circuit board G
Therefore, the most waste will occur when the circuit board A (B or C) is mounted.
That is, physically, in the slot 3 in which one circuit of the circuit board G can be used, four circuits of the circuit of the circuit board A (B or C) can be used. In order to eliminate such waste, the size of the circuit board is not unified to the maximum size, and the slot of the package rack is divided into various sizes as shown in FIG.
As the structure of itself becomes complicated, it becomes impossible to realize slot-free between circuit boards of different sizes,
There was a drawback that the slot usage efficiency deteriorates. For example, in the package rack 5 shown in FIG. 8, a maximum of two circuit boards G can be accommodated, and if two circuit boards G have already been used, a new circuit board G cannot be added. The present invention has been made in view of the above situation,
We provide a relay board structure that does not complicate the structure of the package rack, eliminates waste of the mounting area, and can realize slot-free of circuit boards of different sizes, thus suppressing the manufacturing cost of the package rack and
The purpose is to improve the circuit board mounting efficiency.

[0004]

A relay board structure according to the present invention for achieving the above object is a relay board structure in which circuit boards of different sizes are mounted on a package rack. The relay board is detachably provided on the package rack, and the guide means for inserting and removing the circuit board is provided on the relay board.
Further, in the relay board structure, a plurality of connection connectors for circuit boards are arranged at the dividing positions of the relay board based on the minimum unit circuit board, and the circuit board can be attached from the minimum unit to a multiple of this minimum unit. It is preferable that the relay board be detachably provided with the guide means.

[0005]

With the guide means provided on the relay board, a plurality of circuit boards can be mounted in the same slot, and the surplus area is entirely the mounting area of the circuit board. Further, various circuit boards are mounted on the relay board having the same shape, the mounting size of the circuit boards is common, the package rack can be used, and the circuit boards of different sizes can be slot-free.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a relay board structure according to the present invention will be described in detail below with reference to the drawings. 1 is an exploded perspective view showing a relay board structure of the present invention, FIG. 2 is an exploded perspective view of a guide bracket, FIG. 3 is a front view of the guide bracket, and FIG.
Is a perspective view of the intermediate guide, and FIG. 5 is a front view of the intermediate guide. Rectangular relay board 11 whose long sides are arranged vertically
A mother board connecting connector 13 is mounted on one long side of the one side, and the mother board connecting connector 13 is connected to a mother board (not shown) in the apparatus via a connector on the package rack side. The upper guide bracket 15, which is a strip-shaped guide bracket, is provided on the upper and lower sides of the relay board 11,
The base ends of the lower guide brackets 17 are fixed, and the upper guide brackets 15 and the lower guide brackets 17 have ejectors 19 at their tips. That is, the relay board 11 can be attached to and detached from the package rack 1 (see FIG. 6) by inserting the upper guide bracket 15 and the lower guide bracket 17 into the slot 3 (see FIG. 6).

As shown in FIG. 2, the upper guide bracket 1
A fixing hole 21 is provided at the tip of the fixing hole 5, and the fixing hole 21 serves as a fixing means to the package rack 1. On the lower side of the upper guide bracket 15, a vertical guide 23 as a guide means is provided.
The upper and lower guides 23 have a groove 27 into which the edge of the circuit board 25 (see FIG. 1) is inserted. As shown in FIG. 3, a screw hole 29 is provided on the tip surface of the upper and lower guides 23, and the screw hole 29 serves as a fixing means for the circuit board 25. Similarly, a fixing hole 21 is provided at the tip of the lower guide bracket 17 (see FIG. 1), and the upper and lower guides 2 serving as guide means are provided on the upper side of the lower guide bracket 17.
3 (see FIG. 1) is fixed.

As shown in FIG. 1, a plurality of circuit board connection connectors 31 connected to the mother board connection connector 13 are provided on the other long side of the relay board 11, and the circuit board connection connector 31 is a minimum unit. The circuit board 25 (in this embodiment, the circuit board A) is arranged at each of the divided positions. The connection connector 31 for the circuit board is connected to the connector 31 for connecting the mother board by gathering wiring so that the plurality of circuit boards 25 can be connected to the connector for connecting the mother board 31. Further, the base end of the intermediate guide 35 is detachably fixed to the guide attachment hole 33 formed between the line board connection connectors 31 of the relay board 11, and the intermediate guide 35 is connected to the line as shown in FIG. The upper and lower surfaces have a groove 37 into which the edge of the substrate 25 is inserted. As shown in FIG. 5, a pair of upper and lower screw holes 39 are provided on the tip surface of the intermediate guide 35.
5 fixing means. Package rack 1, relay board 1
1. Motherboard connector 13, upper guide bracket 15, lower guide bracket 17, ejector 19,
A relay board structure 41 is configured with the upper and lower guides 23, the circuit board connector 31, and the intermediate guide 35 as main members.

The operation of the relay substrate structure 41 thus constructed will be described. For example, in order to mount the smallest-sized circuit board A (see FIG. 7) on the relay board 11, the intermediate guide 35a is fixed to the uppermost guide mounting hole 33a, so that the upper guide bracket 15 and the intermediate guide 35a are separated. The area is the mounting area of the circuit board A. To mount the smallest size circuit board B (see FIG. 7) on the relay board 11,
Intermediate guide 35b in the second guide mounting hole 33b from the top
Is fixed, the intermediate guide 35a and the intermediate guide 3
The area between 5b is the mounting area of the circuit board B. The area between the intermediate guide 35b and the lower guide bracket 17 is the mounting area of the circuit board D, which is twice the size of the circuit board A. As described above, by properly mounting the intermediate guide 35, it is possible to freely combine and mount the circuit boards 25 of various sizes on the single relay board 11.

The following table shows a comparison of the number of mounted circuit boards in the conventional circuit board mounting structure and the relay board structure 41 according to this embodiment.

[Table 1]

That is, in the structure in which the package rack 1 (see FIG. 6) having the maximum board size is used, the number of mountable boards is five, which is the same as the number of the slots 3 in all the circuit boards 25. In addition, the package rack 5 shown in FIG.
In the structure using, the minimum size of the circuit board A (B or C) that can be mounted is four, the size of the circuit board D is twice,
The mountable number of E is 4, the mountable number of the triple size circuit board F is 0, and the mountable number of the quadruple size circuit board G is 2. On the other hand, in the relay board structure 41 of the present embodiment using the relay board 11, the smallest size circuit board A
(B or C) 20 boards, 2 times size circuit boards D, E 10 boards, 3 times size circuit board F 5 boards, 4 times size circuit board The number of boards G that can be mounted becomes 5, and the smallest size circuit board A (B or C) can be mounted in the surplus area when the triple size circuit board F is mounted.

Therefore, in this relay board structure 41, the upper guide bracket 15, the lower guide bracket 17, and the intermediate guide 35, which are guide means, are provided on the relay board 11, so that a plurality of circuit boards 25 can be mounted in the same slot. Becomes Further, the intermediate guide 35 is detachably provided, and the circuit board connection connectors 31 are aggregated and connected to the mother board connection connector 13, so that various circuit boards 25 can be mounted in any combination. Then, it becomes possible to replace each circuit board 25 as a unit, and it is also possible to replace each relay board 11 by the ejector 19.

According to the relay board structure 41 according to the above-described embodiment, a plurality of lines can be mounted in the same slot, and the surplus area is entirely subject to the mounting area, so that it becomes unusable due to the difference in mounting size. There is no useless mounting area. Further, since the various circuit boards 25 are mounted on the relay board 11 having the same shape, the circuit board mounting size is common, and the package rack 1 of FIG. 6 can be used. Therefore, the package rack 1 does not become complicated. Further, since the various circuit boards (A to G) are mounted on the relay board 11 having the same shape, the circuit boards 25 having different sizes can be slot-free and the mounting efficiency can be improved. Further, since it is possible to replace each line board 25 unit and each relay board 11 unit, maintainability can be improved.

[0014]

As described in detail above, according to the relay board structure according to the present invention, the guide board having the same shape is detachably provided on the package rack so that the circuit board can be inserted and removed. Since it is provided on the relay board, the surplus area is entirely the mounting area of the circuit board, and there is no useless mounting area that cannot be used. Further, since the mounting size of the circuit board is common and the package rack 1 of FIG. 6 can be used, it is possible to avoid making the package rack complicated and to realize slot-free of circuit boards of different sizes. As a result, the manufacturing cost of the package rack can be suppressed and the mounting efficiency of the circuit board can be significantly improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a relay board structure of the present invention.

FIG. 2 is an exploded perspective view of a guide bracket.

FIG. 3 is a front view of a guide bracket.

FIG. 4 is a perspective view of an intermediate guide.

FIG. 5 is a front view of an intermediate guide.

FIG. 6 is a perspective view of a package rack on which a circuit board is mounted.

FIG. 7 is an explanatory diagram showing a size relationship of a circuit board.

FIG. 8 is a perspective view of a package rack having size-specific slots.

[Explanation of symbols]

 1 Package Rack 11 Relay Board 13 Connector for Motherboard Connection 15 Upper Guide Bracket (Guide Bracket) 17 Lower Guide Bracket (Guide Bracket) 19 Ejector 23 Vertical Guide (Guide Means) 25 Circuit Board 31 Circuit Board Connector 35 Intermediate Guide (Guide) Means) 41 Relay board structure

Claims (4)

[Claims] 1. A relay board structure for mounting circuit boards of different sizes on a package rack, wherein a plurality of relay boards having the same shape are detachably provided on the package rack so that the circuit board can be inserted and removed. A relay board structure, wherein the guide means is provided on the relay board. 2. A plurality of circuit board connecting connectors are arranged at division positions of the relay board with reference to a minimum unit circuit board, and the circuit board can be attached from the minimum unit to a multiple of the minimum unit. A relay board structure, wherein the guide means is detachably attached to the relay board. 3. A mother board connecting connector is provided on a relay board, and wirings from the plurality of circuit board connecting connectors are aggregated so that the plurality of circuit boards can be connected to the mother board connecting connector. A relay board characterized by being connected to a connector for use. 4. A guide bracket for fixing the guide means is provided extending from the upper and lower ends of the relay board, and an ejector capable of inserting and removing the connector for connecting the motherboard is provided at the tip of the guide bracket. Relay board structure characterized by.