JPH0730219A - Printed wiring main board - Google Patents

Abstract

PURPOSE:To provide a printed wiring main board on which front wiring sub- boards arbitrarily specified can be mounted. CONSTITUTION:Provided are a plurality of connector-receiving portions 2A, 2B and 3 for inserting and attaching respective connectors 4A, 4B and 5 with different terminal arrangements respectively corresponding to arbitrarily specified ones among front wiring sub-boards 6 and 7 having different terminal arrangements; and wiring patterns corresponding to respective connector- receiving portions 2A, 2B and 3 are laid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring main board, and more particularly to a printed wiring main board for mounting a front wiring sub board, which is used in satellite broadcast receiving equipment and the like.

[0002]

2. Description of the Related Art Conventionally, in a satellite broadcast receiving device or the like, a connector is arranged on a printed wiring main board, and a front wiring sub board is mounted on this connector. For example, like the conventional printed wiring main board shown in FIG. 5, the connector 5 corresponding to the mounting of the front wiring sub-board 7 having a certain terminal arrangement and configuration is arranged on the printed wiring main board 51. At this time, the printed wiring main board 51 is exclusively for the connector 5,
That is, it is dedicated to the front wiring sub board 7.

When the printed wiring main board 51 on which the front wiring sub board 7 is mounted is stored in the bottom case 53, the cutouts 52B, 52 provided in the front part of the printed wiring main board 51.
C is a board receiver 54B integrally provided on the bottom case 53,
54C is attached to each position. As a result, the board receivers 54B and 54C support the front wiring sub board 7 from behind. At this time, the bottom case 53 is dedicated to the printed wiring main board 51, that is, the front wiring sub board 7.

Another conventional printed wiring main board 61 shown in FIG. 6 is provided with connectors 4A and 4B corresponding to the mounting of the front wiring sub board 6 having another terminal arrangement and configuration.
At this time, the printed wiring main board 61 is connected to the connector 4
A, 4B only, that is, a front wiring sub board 6 only.

When the printed wiring main board 61 on which the front wiring sub board 6 is mounted is stored in the bottom case 63, notches 62A and 62C provided in the front portion of the printed wiring board 61.
However, the board receivers 64A, 6 provided integrally with the bottom case 63
4C is attached to the position where it respectively contacts. As a result, the board receivers 64A and 64C support the front wiring sub board 6 from behind. At this time, the bottom case 63 is exclusively for the printed wiring main board 61, that is, the front wiring sub board 6
It is for exclusive use.

[0006]

As is apparent from the above, the conventional printed wiring main board is designed only for a certain front wiring sub board, and cannot be mounted on another front wiring sub board. It was

Therefore, the types of the printed wiring main board and the bottom case are increased, which causes not only the problems such as the increase of the component cost, the die cost and the inventory cost, but also the decrease of the productivity due to the erroneous mounting and the workability. There was a problem such as deterioration and it was unsolved.

The present invention has been made to solve the above problems and drawbacks, and an object thereof is to provide a printed wiring main board on which at least two kinds of arbitrarily designated front wiring sub boards can be mounted. Especially.

[0009]

In order to solve the above problems, a printed wiring main board according to the present invention is provided with a connector for mounting a designated one of several types of front wiring sub boards having different terminal arrangements. In the printed wiring main board having the configuration, a plurality of connector mounting portions for inserting and mounting the corresponding connectors having different terminal arrangements respectively to the front wiring sub-board arbitrarily specified are provided, and each of the plurality of connector mounting portions is supported. It is characterized in that wiring is installed.

[0010]

A plurality of connector mounting portions simultaneously arrange connectors having different terminal arrangements so that any front wiring sub-board can be designated. Also, the wiring laid on each of the connector mounting portions enables the respective connectors to be used simultaneously.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view illustrating an example of the overall configuration of a printed wiring main board according to the present invention, and FIG. 2 shows an example of a wiring pattern of the printed wiring main board of FIG.
(A) Bottom view and (b) Top view. Furthermore, FIG.
FIG. 2 is a top view of the printed wiring main board of FIG. 1 when each front wiring sub board having different dimensions is mounted.

The printed wiring main board 1 according to the present invention has connector mounting portions 2A, 2B, 3 for mounting the connectors 4A, 4B and the connector 5 on the front surface thereof. The connector mounting portions 2A, 2B, 3 have terminals T1, T2, T3, R1, R2, R3, etc., as shown in FIG. 2, a part of which is shown in FIG. Thus, the wirings S1, S2, S3 on the back surface, the wirings Q2, Q3 on the front surface, etc. are laid, and these wirings are the wiring pattern 8 as a whole.
Is formed.

When the use of the front wiring sub-board 6 is designated, the front wiring sub-board 6 is connected to the connector 4A,
Insert in 4B. When the use of the front wiring sub board 7 is designated, the front wiring sub board 7 is connected to the connector 5
To attach.

Due to the operation of the front wiring sub-board 6, wirings S are respectively connected to the terminals T1, T2 and T3 of the connector mounting portion 2A.
When signal transmission / reception from 1, S2, S3 is required, the wiring pattern 8 effectively transmits the signal, as shown in FIG. That is, the wiring S1 directly reaches the terminal T1, and the wiring S2 reaches the terminal T2 through the wiring Q2 on the front surface. Further, the wiring S3 reaches the terminal T3 through the wiring Q3 on the front surface.

On the other hand, the wiring pattern 8 simultaneously acts on the operation of the front wiring sub board 7. Due to the operation of the front wiring sub board 7, the terminals R1 and R of the connector mounting portion 3
When signals need to be sent to and received from the wirings S1, S2 and S3 for the wirings 2 and R3, respectively, the wiring pattern 8 leads the wiring S1 directly to the terminal R1 and the wiring S2 to the wiring Q on the front surface.
2 to the terminal R2. Further, the wiring S3 reaches the terminal R3 via the wiring Q3 on the front surface.

As described above, the wiring pattern 8 transmits the signal corresponding to whichever of the connectors 4A and 4B or the connector 5 the front wiring sub-board (6 or 7) is attached. Is what makes it possible.

The printed wiring main board 1 has three notches 12A, 12B and 12C on its front surface. on the other hand,
The bottom case 13 has three board receivers 14A, 14B, 14
The printed wiring main board 1 has three notches 12
A, 12B and 12C are these three board receivers 14A and 14
It is attached to the bottom case 13 so as to come into contact with B and 14C, respectively. The board receiver 14B is another board receiver 14A, 14C.
Located slightly inside the case, a notch step portion 20 is formed on the front surface of the board receiver 14C.

As a result, as shown in FIG. 3 (a), when the front wiring sub-board 7 having a short width is inserted, it is inserted into the connector 5 on the back side, so that the sub-board 7 receives the board receivers 14B and 14C. When the long front wiring sub-board 6 is supported by the notched step portion 20 and is supported by at least the front surfaces of the substrate receivers 14A and 14C as shown in FIG. It can also be used for sub boards.

FIG. 4 is a side view of another embodiment of the printed wiring main board according to the present invention. The ribs 15 may be provided on the board receiver 14C integrally provided on the bottom case 13 so that the ribs 15 can be mounted on both the front wiring sub boards 6 and 7. In this case, unlike FIG. 3, it is not necessary to consider the laterally long dimension of the front wiring sub-board 7. That is, in the case of the sub plate 6, the lower end thereof is set to a height until it comes into contact with the bottom case 13, and in the case of the sub plate 7, the lower end thereof is set to a height slightly separated from the bottom case 13, The height width of the right end of each of the sub plates 6 and 7 is changed so that the sub plate 6 is supported by the lower end projection 15A of the rib 15 and the sub plate 7 is supported by the upper portion 15B of the rib 15. There is.

[0020]

As described above, in the printed wiring main board according to the present invention, the printed wiring main board is provided with a connector for mounting a designated one of several types of front wiring sub boards having different terminal arrangements. Provide a plurality of connector mounting parts for inserting and mounting the corresponding connectors with different terminal arrangements on the specified front wiring sub-board, and mount a plurality of connectors, and lay the corresponding wiring on each of these connector mounting parts. Therefore, no matter which front wiring sub-board is specified, a single type of printed wiring main board can be used.

In other words, only one type of printed wiring main board is required, so that there is an effect that the cost of parts can be reduced.

Further, even in the step of attaching the printed wiring main board to the main body first, there is no occurrence of an unsuitable mounting error of the printed wiring main board unlike the conventional case.
Therefore, it is possible to avoid an increase in the number of processes such as reattachment and the associated cost increase. This is also the case when the mounting front wiring sub board is changed.

As described above, the printed wiring main board of the present invention can solve the conventional problems of high cost due to an increase in the number of steps and a decrease in productivity due to an increase in takt time.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating an example of the overall configuration of a printed wiring main board according to the present invention.

2 (a) is a bottom view and FIG. 2 (b) is a top view showing an example of a wiring pattern of the printed wiring main board of FIG.

FIG. 3 is a top view of the printed wiring main board of FIG. 1 when each front wiring sub board having different dimensions is mounted.

FIG. 4 is a side view of another embodiment of mounting the front wiring sub-board according to the present invention.

FIG. 5 is a perspective view of an example of a conventional dedicated printed wiring main board.

FIG. 6 is a perspective view of an example of a conventional dedicated printed wiring main board.

[Explanation of symbols]

 1 Printed Wiring Main Board 2A, 2B Connector Mounting Part 3 Connector Mounting Part 4A, 4B Connector 5 Connector 6 Front Wiring Sub Board 7 Front Wiring Sub Board 8 Wiring Pattern 12A, 12B, 12C Cutout 13 Bottom Case 14A, 14B , 14C Substrate receiving T1, T2, T3, R1, R2, R3 terminals S1, S2, S3, Q2, Q3 Wiring

Claims (1)

[Claims] 1. A printed wiring main board having a connector for mounting a designated one of several types of front wiring sub-boards having different terminal arrangements, each corresponding to a front wiring sub-board arbitrarily designated. A printed wiring main board, wherein a plurality of connector mounting portions for inserting and mounting connectors having different terminal arrangements are provided, and corresponding wirings are laid on each of the plurality of connector mounting portions.