JP3101989B2 - Antenna coupler connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting an antenna coupler to a tuner pack.

[0002]

2. Description of the Related Art In a television, a tuner is generally coupled to an antenna via an antenna coupler.

FIG. 7 shows an example of a conventional antenna coupler. The antenna coupler a connects the input connector b to an antenna and connects to a tuner pack (not shown) via a coaxial cable c.

[0004]

However, since the conventional antenna coupler a uses an expensive coaxial cable c, the cost tends to increase, and the S / N ratio of the coaxial cable c is reduced. There was a drawback that it led to deterioration.

[0005]

According to the present invention, an antenna coupler having a grounding function and a tuner pack having a grounding plate are provided close to the same substrate, and the antenna coupler is output outward from a shield case of the antenna coupler. The connector is projected, and the output connector is directly connected to the input connector of the tuner pack.

[0006]

In the present invention, the use of a coaxial cable is avoided by directly coupling the output connector of the antenna coupler to the input connector of the tuner pack.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the antenna coupler connection structure of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded view of the antenna coupler 1. FIG. 1 shows a shield plate made of a metal plate, 3 shows a board on which a high-pass filter is assembled, 4 shows a resin case, and 5 shows a shield case made of a metal case. It is. The input connector 6, the pin 7, and the earth plate 8 are attached to the board 3. The case 4 has a pair of left and right guide ribs 9 and 9 and a support rib 10 on the inner surface, and a boss 11 is integrally formed on the back surface. Further, FIG.
A semicircular notch 12 is formed along the outer peripheral surface 11a of the boss 11 as shown in FIG. The shield case 5 includes a pair of left and right convex portions 1.
3, 13 and a hole 14 are provided.

[0008] The assembly of the antenna coupler 1 is performed as follows. First, the substrate 32 is connected to the guide ribs 9, 9 of the case 4.
, The bottle 7 is inserted into the hole 11 b of the boss 11, and the ground plate 8 is inserted into the notch 12. At this time, the input connector 6 is engaged with and supported by the support rib 10. Next, the input connector 6 is connected to the shield plate 2.
Of the input connector 6 and the washer 16
a and the nut 16b are attached, and the shield plate 2 is fixed. Finally, the shield case 5 is put on the case 4 and the projections 13 are engaged with the holes 17 of the shield plate 2. As a result, as shown in FIG. 5, an output connector 18 protruding outward from the rear surface of the shield case 5 is formed.

FIG. 2 shows a state in which the antenna coupler 1 is connected to the tuner pack 19.
May be assembled. A pair of notches 21 and 21 and a slit 22 are formed at the edge of the substrate 20 on which the tuner pack 19 is installed (see FIG. 3). The antenna coupler 1 is slid along the slit 22 while being engaged with the input connector 2 of the tuner pack 19.
The antenna connector 1 may be assembled by inserting the output connector 18 of the antenna coupler 1 into the connector 4.

[0010]

The present invention is constructed as described above.
The following effects are obtained. In other words, the output connector protrudes outward from the shield case of the antenna coupler, and this output connector is directly connected to the input connector of the tuner pack. No cable is required, and cost reduction and improvement in S / N can be achieved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an antenna coupler according to the present invention.

FIG. 2 is a diagram showing a coupling state of the antenna coupler to a tuner pack.

FIG. 3 is a plan view showing a part of the substrate of FIG. 2;

FIG. 4 is a rear view of the antenna coupler.

5 is a sectional view taken along line AA shown in FIG.

FIGS. 6A and 6B show the substrate assembly of FIG. 1, wherein FIG. 6A is a front view and FIG. 6B is a side view.

FIG. 7 is an exploded perspective view of a conventional antenna coupler.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 antenna coupler 2 shield plate 3 board 4 case 5 shield case 7 pin 8 ground plate 9 guide rib 11 boss 11a hole 12 notch 18 output connector 19 tuner pack 24 input connector

Claims (1)

(57) [Claims] 1. An earthing function provided with an earthing plate.
The antenna coupler and the tuner pack
Provided close to the board, and projecting the output connector outward from the shield case of the antenna coupler,
The connection structure of the antenna coupler, wherein the output connector is directly connected to the input connector of the tuner pack.