JP2003123913A - Distributor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive distributor superior in productivity when applied to an external apparatus. SOLUTION: This distributor has a box-shaped casing 1 made of metal, a circuit board 2 having a distributing circuit 3, and installed in the casing 1, and at least three coaxial connectors 6, 7, and 8 installed on a wall plate 1b of the casing 1. The three coaxial connectors 6, 7, and 8 are installed on one wall plate 1b, and since one is used for input and two are used for output among the three coaxial connectors 6, 7, and 8, the three coaxial connectors 6, 7, and 8 can be derived from the same surface side of a casing 13 of the external apparatus 12, and the number of part items can be reduced further than the conventional number of part items so that the inexpensive distributor superior in productivity can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distributor suitable for use in a television receiver or the like.

[0002]

2. Description of the Related Art A drawing of a conventional distributor is shown in FIG.
FIG. 7 relates to a conventional distributor, and is an exploded perspective view showing the distributor and its mounting structure. FIG. 6 is a sectional view taken along line 6-6 of FIG.
FIG. 7 is a sectional view taken along line 7-7 of FIG. 5.

Next, the structure of a conventional distributor will be described with reference to FIGS. 5 to 7, which is a box-shaped housing 51 made of metal.
Is a wall plate 51a located on the side surface side, and four wall plates 51b, 51 formed by bending four sides of the wall plate 51a.
c, 51d, 51e. And the wall plates 51b, 5
1c, 51d, 51e are respectively the front side, the rear side,
It is arranged on the upper surface side and the lower surface side.

The housing 51 has four mounting legs 51f projecting downward from the four lower corners and a mounting portion 51g provided at the center of the wall plate 51b located on the front side. The mounting portion 51g is formed by a cut-and-raised portion 51h in which the wall plate 51b is cut and raised in a trapezoidal shape, and a circular hole 51j provided in the center of the cut-and-raised portion 51h.
The open portion of the housing 51 is covered with a metal cover 51k.

A circuit board 52 made of a printed circuit board is provided with a distribution circuit 53 and a modulation circuit 54, and a plurality of terminals 55 are provided on the circuit board 52 so as to be connectable to an external device. . And this circuit board 5
2 is arranged in the housing 51, and the terminal 55 projects downward from the wall plate 51e side on the lower surface side.

The three female first, second, and third coaxial connectors 56, 57, and 58 are cylindrical outer conductors 59, respectively.
And a central conductor 61 mounted inside the outer conductor 59 via an insulator 60. And
The two first and second coaxial connectors 56, 57 are mounted above and below the front side wall plate 51b with the mounting portion 51g interposed therebetween, and the remaining one third coaxial connector 58 is provided.
Is attached to the side wall plate 51a.

Further, in each of the first, second, and third coaxial connectors 56, 57, 58, a cylindrical outer conductor 59 is soldered and attached to the wall plates 51a, 51b, and a center conductor 61 is provided. It is configured to be connected to a desired circuit, and the first coaxial connector 56 is used for inputting a television signal from the antenna and the second coaxial connector 56 is used.
The coaxial connector 57 is used for outputting to a television, and the third coaxial connector 58 is used for outputting to a VTR (video). Further, the television signal from the modulation circuit 54 can be output to the second and third coaxial connectors 57 and 58.

The conventional distributor has the above-mentioned structure,
Such a distributor with a modulator function is used by being incorporated in an external device 62 such as a television. The external device 62 has a housing 63, and the back wall of the housing 63 has two large holes 63a, 6 provided at intervals.
3b and a small hole 63c provided between the holes 63a and 63b.

On the back wall of the housing 63, a female fourth
This coaxial connector 64 is attached, and
The fifth coaxial connector 66 is connected to the coaxial connector 64 via a coaxial cable 65. The above-mentioned distributor is used as the housing 6 of the external device 62.
3, the mounting legs 51f of the housing 51 and the terminals 55 are soldered to a mother board (not shown) of the external device 62, and the two first and second coaxial connectors 5 are attached.
6 and 57 are projected outward from the holes 63a and 63b.

In this state, the screw 67 is applied from the outside of the housing 63.
Is inserted into the hole 63c and screwed into the hole 51j of the mounting portion 51g to more securely mount the distributor to the housing 63, and the male fifth coaxial connector 66 is attached to the third third connector.
When you insert them into the coaxial connector 58 and connect them,
The third coaxial connector 58 is connected to the fourth coaxial connector 64.

Then, a male coaxial connector (not shown) connected to the antenna circuit is connected to the first coaxial connector 56 so that the antenna signal is input to the distributor and the second, fourth Male coaxial connectors (not shown) are connected to the coaxial connectors 57 and 64 so that television signals distributed respectively are output.

[0012]

In the conventional distributor, since the first, second and third coaxial connectors 56, 57 and 58 are attached to the wall plates 51a and 51b of the housing 51, the external device 62 side. In order to lead out from the same plane side, the fourth and fifth coaxial connectors 64 and 66 and the coaxial cable 55
Is required, the number of parts is increased, the cost is increased, and the productivity is poor.

Therefore, when the present invention is applied to an external device,
It is an object of the present invention to provide an inexpensive and highly productive distributor.

[0014]

As a first solving means for solving the above problems, a box-shaped housing made of metal, a distribution circuit, and a circuit board attached to the housing, And at least three coaxial connectors attached to a wall plate of the housing, the three coaxial connectors,
In addition to being attached to one of the wall plates, one of the three coaxial connectors is used for input and two are used for output.

As a second solution, the three coaxial connectors are arranged in an example state. As a third means for solving the problems, a modulation circuit is provided on the circuit board, and a modulator is provided.

As a fourth solving means, the wall plate to which the coaxial connector is attached is provided with an attaching portion extending from the wall plate surface in the same direction. Also, the fifth
As a means for solving the above problem, the mounting portion is provided at a position close to the input coaxial connector.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings of the distributor of the present invention, FIG. 1 relates to the distributor of the present invention, and is an exploded perspective view showing the distributor and its mounting structure. FIG. 3 is a sectional view taken along line 3-3 of FIG. 1, and FIG. 4 is a block diagram of the distributor of the present invention.

Next, the configuration of the distributor of the present invention is shown in FIGS.
To explain based on, the box-shaped housing 1 made of metal
Is a wall plate 1a located on the side surface side, and four wall plates 1b, 1c, 1d formed by bending four sides of the wall plate 1a,
Has 1e. Each of the wall plates 1b, 1c, 1d, 1e is arranged on the front surface side, the rear surface side, the upper surface side, and the lower surface side.

The housing 1 has four mounting legs 1f projecting downward from the four lower corners and a wall plate 1 located on the front side.
It has a mounting portion 1g extending in the same direction from b, and this mounting portion 1g includes a trapezoidal bent portion 1h and this bent portion 1g.
It is formed by a circular hole 1j provided at the center of h. The open portion of the housing 1 is covered with a metal cover 1k.

The circuit board 2 made of a printed circuit board is provided with the distribution circuit 3 and the modulation circuit 4, and the circuit board 2 is provided with a plurality of terminals 5 so that it can be connected to an external device. . The circuit board 2 is the housing 1
The terminal 5 is disposed inside and projects downward from the wall plate 1e side on the lower surface side.

The three female first, second, and third coaxial connectors 6, 7, and 8 are respectively attached to a cylindrical outer conductor 9 and an insulator 10 inside the outer conductor 9. And the center conductor 11 formed. The three first and second coaxial connectors 6, 7 and 8 are attached to the front side wall plate 1b in a line in the vertical direction. At this time, the mounting portion 1g provided on the housing 1 is in a state of being provided at a position near the first coaxial connector 6.

In each of the first, second and third coaxial connectors 6, 7, 8 a cylindrical outer conductor 9 is soldered and attached to the wall plate 1b, and a center conductor 11 is desired. The first coaxial connector 6 is used for inputting a television signal from the antenna, and the second coaxial connector 7 is used for output to a television and the first coaxial connector 6 is connected to a circuit. The coaxial connector 8 of 3 is a VTR
Used for output to (video). Furthermore, the second and third
The television signals from the modulation circuit 4 can be output to the coaxial connectors 7 and 8.

As shown in the block diagram of FIG. 4, the distributor having such a configuration receives a signal from one input section 21 including the first coaxial connector 6 and distributes the signal. Two output parts 2 which are distributed by the circuit 3 and consist of second and third coaxial connectors 7, 8.
Signals are output from 2, 23.

The distributor of the present invention has the above-mentioned structure, and such a distributor having a modulator function is used by being incorporated in the external device 12 such as a television. The external device 12 has a housing 13, and the back wall of the housing 13 has three large holes 13a, 13b, 13c and a small hole 13d, which are provided in a row at intervals.

The above-mentioned distributor is soldered to the mother board (not shown) of the external equipment 12 with the mounting legs 1f of the housing 1 and the terminals 5 in a state of being housed in the housing 13 of the external equipment 12. In addition, the three first, second, and third coaxial connectors 6, 7, and 8 are provided with holes 13a, 13b, and 13c, respectively.
Project outward from. In this state, the screw 14 is inserted from the outside of the housing 13 into the hole 13d, and the hole 1 of the mounting portion 1g is removed.
Threaded into j, the distributor is more securely attached to the housing 13.

A male type coaxial connector (not shown) connected to the antenna circuit is connected to the first coaxial connector 6 so that the antenna signal is input to the distributor.
Male coaxial connectors (not shown) are connected to the second and third coaxial connectors 7 and 8 so that the distributed television signals can be output.

In the above embodiment, the modulator function is described, but the modulator may be omitted.

[0028]

The distributor of the present invention has a box-shaped casing 1 made of metal and a distribution circuit 3, and is attached to a circuit board 2 attached to the casing 1 and a wall plate 1b of the casing 1. And at least three coaxial connectors 6, 7, and 8 are provided, and the three coaxial connectors 6, 7, and 8 are attached to one wall plate 1b, and among the three coaxial connectors 6, 7, and 8. 1 is used for input and 2 for output, so 3
The coaxial connectors 6, 7 and 8 are housings 13 of the external device 12.
Can be derived from the same surface side, the number of parts can be reduced as compared with the conventional one, and the product can be obtained at low cost and with good productivity.

Further, since the three coaxial connectors 6, 7 and 8 are arranged in an example state, a space factor is good, a small size and a good-looking one can be obtained.

Further, since the circuit board 2 is provided with the modulation circuit 4 and the modulator, the one suitable for use in video can be obtained.

Further, since the wall plate 1b to which the coaxial connectors 6, 7 and 8 are attached is provided with the attachment portion 1g extending in the same direction from the wall plate surface, a strong attachment of the housing 1 can be obtained, and Since the wall plate 1b side of the male coaxial connector which is inserted and removed is supported, more reliable mounting can be performed.

Further, since the mounting portion 1g is provided at a position close to the input coaxial connector 6, it is possible to support the mounting of the male type coaxial connector on the side which is frequently used when pulling out, and to ensure reliable mounting.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a distributor and a mounting structure thereof according to a distributor of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a block diagram of a distributor of the present invention.

FIG. 5 is an exploded perspective view of a conventional distributor, showing the distributor and its mounting structure.

6 is a cross-sectional view taken along line 6-6 of FIG.

7 is a cross-sectional view taken along line 7-7 of FIG.

[Explanation of symbols]

1 housing 1a wall board 1b wall board 1c wall board 1d wall board 1e wall board 1f mounting leg 1g mounting part 1h bent part 1j hole 1k cover 2 circuit board 3 distribution circuits 4 Modulation circuit 5 terminals 6 First coaxial connector 7 Second coaxial connector 8 Third coaxial connector 9 outer conductor 10 insulator 11 center conductor 12 External equipment 13 housing 13a hole 13b hole 13c hole 13d hole 14 screws 21 Input section 22 Output section 23 Output section

Claims (5)

[Claims] 1. A box-shaped casing made of metal, a distribution circuit, a circuit board attached to the casing, and at least three coaxial connectors attached to a wall plate of the casing, The three coaxial connectors are attached to one wall plate, and one of the three coaxial connectors is used for input and two are used for output. 2. The distributor according to claim 1, wherein the three coaxial connectors are arranged in an example state. 3. The distributor according to claim 1, wherein the circuit board is provided with a modulation circuit and is provided with a modulator. 4. The distributor according to claim 1, wherein the wall plate to which the coaxial connector is mounted is provided with a mounting portion extending in the same direction from the wall plate surface. 5. The distributor according to claim 4, wherein the mounting portion is provided at a position close to the input coaxial connector.