JP3632915B2 - Board wiring body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a board wiring body incorporated in a receiving device such as a digital television or a digital television set top box, and more particularly to a board wiring body formed by electrically connecting a plurality of boards on which predetermined circuit components are mounted. .
[0002]
[Prior art]
In recent years, receivers with a built-in satellite broadcast reception function such as digital televisions and digital television set top boxes have been remarkably widespread. Among these receiving apparatuses, the latter has a receiving function, a received signal processing function, and a video / audio signal output function, and the former has a video display function and an audio output function in addition to these functions. In other words, these receiving apparatuses have different functions, while having functions common to each other.
[0003]
On the other hand, the circuit components responsible for the various functions described above are appropriately mounted on a plurality of boards. Actually, the design of the board wiring body including these boards takes into account the optimum circuit parts and layout for each receiving device. In general, each receiving apparatus is independent. However, with such a design method, the design efficiency is never good because the design man-hour is forced as a whole, and the board itself is dedicated for each receiving device, so the parts as a whole In addition, the number of points increases, and it is almost impossible to simply incorporate a substrate of one receiving device into another receiving device. If multiple receivers with different applications are assembled on the same production line from the viewpoint of reducing the manufacturing cost, there is a risk of erroneous insertion of another board being incorporated, and the erroneous insertion is prevented. Special parts management is also required.
[0004]
For such a problem, for example, according to Japanese Patent Laid-Open No. 2001-85874, in a substrate wiring body incorporated in a receiving device having different specifications, a main circuit component common to the receiving devices is mounted on the main substrate, Different auxiliary circuit components are mounted on an auxiliary board, and these boards are electrically connected by connection means such as cables to constitute a board wiring body. In other words, by sharing the main board for receivers with different specifications, the overall design efficiency is improved and the number of parts is reduced.
[0005]
[Problems to be solved by the invention]
However, although the substrate wiring body having such a configuration is effective for receiving apparatuses having different specifications for the same application, the above-described problems cannot be solved at all for receiving apparatuses having different applications.
[0006]
Therefore, the present invention has been made in view of the above-described problems, and is incorporated in receivers having different uses such as a digital television and a digital television set-top box, thereby improving the overall design efficiency and the number of parts. It is an object of the present invention to provide a substrate wiring body that achieves a reduction in power consumption.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a board wiring body according to the present invention can be incorporated in a digital television or a digital television set-top box, and is equipped with a circuit component common to the digital television and the digital television set-top box. A substrate, a second substrate on which circuit components according to the use of each of the digital television and the digital television set-top box are mounted, and an L-angle connector or a flat wire for electrically connecting the first and second substrates to each other In the board wiring body comprising: a first board is provided with a tuner and a digital processing circuit for digitally processing a signal received by the tuner, and a first connection part is provided on one side edge of the first board. A second connection portion is provided at one side edge of the second substrate, and the first and second connection portions are connected to each other in the digital television. The first board is installed upright on the second board so as to be connected by the L-angle connector, and the first and second connecting parts are connected to each other by a flat wire in the digital television set top box. As described above, the first and second substrates are arranged and assembled on the same plane.
[0008]
In addition, a first board that can be incorporated into a plurality of receiving apparatuses having different uses and that has circuit components common to the receiving apparatuses, and a second board that has circuit parts according to the use of each receiving apparatus, In a substrate wiring body comprising connection means for electrically connecting the first and second substrates to each other, a first connection portion provided on one side edge of the first substrate and one of the second substrates The second connecting portion provided at the side edge portion may be connected by a connecting means.
[0009]
For example, the receiving device is a digital television and a digital television set top box, and a tuner and a digital processing circuit for digitally processing a signal received by the tuner are provided on a first substrate.
[0010]
Further, in general, the outer shape of a digital TV has a margin with respect to a horizontal plane, while the outer shape of a digital TV set top box is limited in its height. In consideration of the outer shape peculiar to the top box, the digital television is incorporated with the first and second substrates arranged substantially perpendicular to each other so that the first and second connection portions are close to each other. In the television set top box, the first and second substrates are arranged on the same plane so that the first and second connection portions are close to each other so that the first and second connection portions are close to each other. It is arranged and incorporated.
The board wiring body according to claim 2 is a board wiring body that can be incorporated into a digital television or a digital television set-top box, and includes circuit components common to the digital television and the digital television set-top box. And a first substrate having a first connection portion provided on one side edge portion, and a circuit component corresponding to the use of either the digital television or the digital television set-top box , and A second substrate having a second connection portion provided on one side edge portion, and the first connection portion and the second connection portion are connected to each other between the first and second substrates. Connecting means for electrically connecting the two.
According to a third aspect of the present invention, there is provided the substrate wiring body according to the second aspect, wherein the first substrate includes a tuner and a digital processing circuit that digitally processes a signal received by the tuner .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of circuit components in a board wiring body of the present invention, and FIG. 2 is a plan view showing an outline of the board wiring body of the present invention. In the present embodiment, the board wiring body is incorporated in a digital television (hereinafter may be referred to as “DTV”) or a digital television set-top box (hereinafter may be referred to as “DTV-STB”). A first substrate 1, a second substrate 2, and connection wiring bodies 11, 12, and 13 that electrically connect the first substrate 1 and the second substrate 2 to each other. Yes.
[0012]
The first substrate 1 is generally called a digital board, and includes a tuner 3 and a digital processing circuit 4 that digitally processes a signal received by the tuner 3. The digital processing circuit 4 is an NTSC DEM. . (Demodulator) 21, NTSC / BTSC DECODER 22, MPEG ENCODER / DECODER 23, SD RAM 24, MEMORY 25, AUDIO D / A CONVERTER 26, VIDEO D / A CONVERTER 27, etc. . In the present embodiment, a 6-layer PCB having a size of about 100 mm × 150 mm is adopted as the first substrate 1.
[0013]
Further, on one side edge portion 1 a of the first substrate 1, connection portions 5, 6 and 7 connected to the connection wiring bodies 11, 12 and 13 are provided. The connection unit 5 is connected to the AUDIO D / A CONVERTER 26 and the VIDEO D / A CONVERTER 27 and receives outputs from the AUDIO D / A CONVERTER 26 and the VIDEO D / A CONVERTER 27. The connection unit 6 is connected to each circuit component described above, and the connection unit 7 is connected to the CPU 20. That is, in the present embodiment, the first substrate 1 is mounted with circuit components common to both the DTV and the DTV-STB, and is a compact substrate shared by the DTV and the DTV-STB.
[0014]
On the other hand, the second substrate 2 is mounted with circuit components according to the use of each of the DTV and DTV-STB, and is dedicated to each of the DTV and DTV-STB. When incorporated in the DTV-STB, the second board 2 is generally called an analog board, and is connected to the AUDIO DRIVER 28, the VIDEO DRIVER 29, the AUDIO DRIVER 28, and the VIDEO DRIVER 29, and is an AV output terminal for outputting video / audio signals to the outside. 30, POWER SUPPLY 31 as a power supply source, FRONT KEY 32 operated by the user, and the like. When incorporated in a DTV, the second board 2 is generally called an analog TV main board, and further includes a deflection circuit (not shown) or a CRT circuit (not shown) that may be provided on another board. It is done.
[0015]
In addition, connection portions 8, 9, and 10 connected to the connection wiring bodies 11, 12, and 13 are provided on one side edge portion 2 a of the second substrate 2. The connection unit 8 is connected to the AUDIO DRIVER 28 and the VIDEO DRIVER 29, and receives the output from the AUDIO D / A CONVERTER 26 and the VIDEO D / A CONVERTER 27 of the first substrate 1 through the connection unit 5 and the connection wiring body 11. Provided to AUDIO DRIVER 28 and VIDEO DRIVER 29. The connection unit 9 is connected to the POWER SUPPLY 31, and supplies the electric power supplied from the POWER SUPPLY 31 to each circuit component of the first substrate 1 through the connection wiring body 12 and the connection unit 6. The connection unit 10 is connected to the front key 32, and gives the operation information from the user input to the front key 32 to the CPU 20 of the first substrate 1 via the connection wiring body 13 and the connection unit 7.
[0016]
The connection parts 5, 6, 7 and the connection parts 8, 9, 10 are provided on the one side edge part 1a of the first substrate 1 and the one side edge part 2a of the second substrate 2, respectively. These are laid out in consideration of the ease of connection with the connection wiring bodies 11, 12, and 13.
[0017]
Next, the aspect of the substrate wiring body incorporated in DTV or DTV-STB will be described. FIG. 3 is a rear perspective view of the DTV-STB representing an aspect of the substrate wiring body incorporated in the DTV-STB, and FIG. 4 is a rear perspective view of the DTV representing the aspect of the substrate wiring body incorporated in the DTV. In the figure, parts having the same names as those in FIGS.
[0018]
First, when incorporated in a DTV-STB, as shown in FIG. 3, the connection parts 5, 6, 7 of the first substrate 1 correspond to the connection parts 8, 9, 10 of the second substrate 2, respectively. The first substrate 1 and the second substrate 2 are arranged on the same plane so as to be close to each other, and the connection portions 5, 6, 7 and the connection portions 8, 9, 10 is electrically connected. Here, as the connection wiring bodies 11, 12, and 13, a general flat wire is applied. Therefore, since the substrate wiring body itself can be made flat, it is effective for the case where the height H of the outer shape is limited like DTV-STB.
[0019]
On the other hand, when incorporated in the DTV, as shown in FIG. 4, the connection portions 5, 6, 7 of the first substrate 1 correspond to the connection portions 8, 9, 10 of the second substrate 2, respectively. The first substrate 1 is erected on the second substrate 2 so that the connection portions 5, 6, 7 and the connection portions 8, 9, 10 are electrically connected by the connection wiring bodies 11, 12, 13, respectively. Connected. Here, as the connection wiring bodies 11, 12, 13, L-angle connectors having connection pins 5, 6, 7 and connection pins protruding toward the connection portions 8, 9, 10 are applied. In addition, the 1st board | substrate 1 and the 2nd board | substrate 2 are adhere | attached with solder or an adhesive agent, and this aspect is maintained. Therefore, it is effective for the case where there is a margin in the height H ′ of the outer shape, such as a DTV, and the width of the substrate wiring body itself can be reduced, so that there is room for providing other parts inside the DTV and the degree of freedom is increased. There is also an accompanying effect of increasing. In addition, since the circuit configuration of the first substrate 1 in this embodiment is also progressive compatible, it can easily be a progressive digital television.
[0020]
In addition, this invention is not limited to said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, receivers having different uses may be devices other than DTV and DTV-STB.
[0021]
【The invention's effect】
As described above, according to the present invention, a digital TV or a digital TV-set top box can be incorporated into the first substrate on which circuit components common to the digital TV and the digital TV-set top box are mounted, and the digital TV. And a digital TV-set top box board wiring body comprising a second board on which circuit components according to the application are mounted, and an L-angle connector or a flat wire for electrically connecting the first and second boards to each other The first board is provided with a tuner and a digital processing circuit for digitally processing a signal received by the tuner, a first connection part is provided on one side edge of the first board, A second connection portion is provided on one side edge of the substrate, and the first and second connection portions are connected to the L-angle connector on the digital television. The first board is installed upright on the second board so that the first and second connection parts are connected to each other by a flat wire in the digital television set-top box. The first and second substrates are assembled on the same plane. Therefore, even for receivers with different applications, such as digital televisions and digital television set-top boxes, the first board can be shared by both, so that the overall design efficiency can be improved and the number of parts can be reduced. Cost reduction is possible.
[0022]
In addition, a first board that can be incorporated into a plurality of receiving apparatuses having different uses and that has circuit components common to the receiving apparatuses, and a second board that has circuit parts according to the use of each receiving apparatus, In a substrate wiring body comprising connection means for electrically connecting the first and second substrates to each other, a first connection portion provided on one side edge of the first substrate and one of the second substrates When the second connecting portion provided on the side edge portion is connected by the connecting means, the first substrate can be shared by both receivers even if they are used for different purposes. Improvement and reduction of the number of parts can be achieved, and the cost can be reduced.
[0023]
For example, if the receiving device is a digital television and a digital television set top box, and the first substrate includes a tuner and a digital processing circuit that digitally processes a signal received by the tuner, It is effective even if the usage is different, such as a television and a digital television set-top box.
[0024]
Further, the first and second substrates are arranged at substantially right angles so that the first and second connection portions are close to each other in the digital television, and the digital television-set top box has the first 1. Since the first and second substrates are arranged on the same plane so that the second connection portions are close to each other, they are built in. It is possible to take an aspect according to the outer shape.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of circuit components in a board wiring body according to the present invention.
FIG. 2 is a plan view schematically showing a substrate wiring body according to the present invention.
FIG. 3 is a rear perspective view of the digital television set-top box showing an embodiment of a substrate wiring body incorporated in the digital television set-top box.
FIG. 4 is a rear perspective view of the digital television showing an aspect of a substrate wiring body incorporated in the digital television.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st board | substrate 2 2nd board | substrate 3 Tuner 4 Digital processing circuit 5, 6, 7 Connection part 8,9,10 of 1st board | substrate 1 Connection part 11,12,13 of 2nd board | substrate 2 Connection wiring body

Claims (4)

A digital TV or a digital TV set-top box that can be incorporated into the digital TV and the digital TV set-top box, and a first substrate on which circuit components common to the digital TV and the digital TV set-top box are mounted, the digital TV and the digital TV set-top In a board wiring body comprising a second board on which circuit components according to the use of each box are mounted, and an L-angle connector or a flat wire that electrically connects the first and second boards,
The first substrate includes a tuner and a digital processing circuit that digitally processes a signal received by the tuner, and a first connection portion is provided on one side edge of the first substrate. A second connecting portion is provided on one side edge of the two substrates,
The digital television is incorporated with the first substrate standing on the second substrate so that the first and second connecting portions are connected to each other by the L-angle connector. The set-top box includes the first and second substrates arranged on the same plane so that the first and second connection portions are connected to each other by the flat wire. Board wiring body. A board wiring body that can be incorporated into a digital television or digital television set-top box ,
A first substrate on which circuit components common to the digital television and the digital television set-top box are mounted and having a first connection portion provided on one side edge;
A second substrate having a second connection portion provided on one side edge portion, on which circuit components corresponding to the use of either the digital television or the digital television set-top box are mounted;
Connection means for connecting the first connection portion and the second connection portion to electrically connect the first and second substrates;
A board wiring body comprising: The board wiring body according to claim 2, wherein the first board includes a tuner and a digital processing circuit that digitally processes a signal received by the tuner . In the digital television, the first and second substrates are arranged at substantially right angles so that the first and second connection portions are close to each other. 4. The substrate wiring body according to claim 3, wherein the first and second substrates are arranged and assembled on the same plane so that the first and second connection portions are close to each other.

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