JPS626768Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting structure for a socket used for terminals of television receiving equipment, such as input terminals, output terminals, branch terminals, etc., and has good insulation from the chassis. It is an object of the present invention to provide a terminal for television receiving equipment that allows a connector for connecting a cable or the like to be firmly tightened.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 and 2 are exploded perspective views of the output terminal portion of a protector as an example of terminals for television receiving equipment. 1 is a metal with good conductivity, such as iron, aluminum, brass, etc. This is the formed chassis. 2 is a first through hole provided in the chassis 1, and 3 and 3' are fixing claws projecting from the chassis 1. 4 is an output terminal, and a plug seat is used.
Reference numeral 5 indicates a connector connection portion, 6 indicates a collar portion, and 7 indicates a screw portion, and these three components constitute the outer conductor 8 of the output terminal 4. 9 is the center conductor of the output terminal 4. In addition, when attaching the output terminal 4, a part of the threaded part 7 is cut to form a rotation prevention part 10 so that a nut 18, which will be described later, can be firmly tightened to prevent the output terminal itself from rotating. be. 1
Reference numeral 1 denotes a mounting member, which is made of an insulating material such as synthetic resin, and has a structure in which a cap (not shown) can be attached to prevent rainwater from entering the output terminal 4. This is for sandwiching the chassis 1 with the plate 13. 12
A second through hole is a hole provided in the mounting member 11, and is oval shaped to match the threaded portion 7 so that the threaded portion 7 can be inserted therethrough without rattling. Reference numeral 13 denotes a holding plate, which is made of a printed circuit board or the like, and has an electrode 1 on its surface, for example, with a printed conductor or the like.
4 is provided, and 15 is an insulating part. 16
is a third through hole, which is provided in the holding plate 13;
The shape of the hole is similar to that of the second through hole 12 so that the threaded portion 7 can be inserted therethrough. 17, 17' are notches provided on the outer periphery of the holding plate 13, and the fixing claws 3,
3' to prevent the holding plate 13 from rotating. A nut 18 is made of a highly conductive metal, and is screwed onto the threaded portion 7 to tighten the retaining plate 13 and electrically connect the outer conductor 8 of the output terminal and the electrode 14. Reference numeral 19 denotes an insulating plate, which is made of an insulating material such as a Bakelite plate or a glass-based epoxy resin plate.
This is to fill the gap created by the first through hole 2 of the chassis 1 sandwiched between the chassis 3. Reference numeral 20 denotes a fourth through hole, which is provided in the insulating plate 19 and allows the threaded portion 7 to be inserted therethrough similarly to the second and third through holes 12 and 16. As described above, the output terminal 4 is fixed to the chassis 1 by the mounting member 11, the holding plate 13, the insulating plate 19, and the nut 18, and
The outer conductor 8 maintains insulation from the chassis 1.
21 is a safety circuit, 22 is a fuse, and 23 is an input terminal.

FIG. 3 is a diagram showing the connection state of the above-mentioned television receiving equipment when in use, where 24 represents a receiving antenna and 25 represents a television receiver. 26 is the first
One end of the transmission line is connected to the receiving antenna 24, and the other end is connected to the input terminal 23. 27
is a second transmission line, one end of which is connected to the output terminal 4, and the other end connected to the television receiver 25.
28, 29, 30 are capacitors, one end of which is connected to electrode 1.
4 and the other end are connected to the chassis 1 by soldering or the like. A conductive wire 31 connects the center conductor 9 of the output terminal 4 and the safety circuit 21.

When assembling the output terminal part in the above configuration, when the chassis 1 is sandwiched between the mounting member 11 and the holding plate 13 from both upper and lower sides to close the first through hole 2, the insulating plate 19 is 1 through hole 2
Insert the mounting member 11 and the retaining plate 1 into the
Make sure there is no gap between 3. here,
Second through hole 12, fourth through hole 20, third through hole 1
After inserting the threaded part 7 into the mounting member 11 from below, insert the nut 18 into the threaded part 7 from the upper side of the retaining plate 13.
When the insulating plate 19 is inserted between the mounting member 11 and the retaining plate 13, the retaining plate 1
3. The mounting member 11 and the chassis 1 can be firmly tightened by the collar 6 and the nut 18, and the output terminal 4 is also firmly fixed at the same time. Further, instead of the mounting member 11 and the insulating plate 19, a mounting member and an insulating plate integrally molded may be used, and 32 in FIG. 4 shows an example of an integrally molded mounting member, and 33 is a step. 34 is a fifth through hole. Next, one end of each of the capacitors 28, 29, and 30 is connected to the electrode 14, and the other end is connected to the chassis 1 by soldering or the like, and the center conductor 9 and the safety circuit 2 are connected using the conducting wire 31.
1, the assembly of the output terminal part is completed. Output terminal 4 assembled as above
In order to connect the second transmission line 27 to the second transmission line 27, it is necessary to screw the connector 35 connected to the tip of the second transmission line 27 into the connector connection part 5 and tighten it. In this case, the mounting member 11 and the retaining plate 13
As a result of firmly sandwiching the chassis 1 between the retaining plate 13 and the chassis 1, the retaining plate 13 does not slide and the connector 35 can be tightened without destroying the notches 17, 17'. still,
If the diameter of the holding plate 13 is A, the diameter of the first through hole 2 is B, the diameter of the insulating plate 19 is C, and the diameter of the mounting member 11 is D, then B< There are relationships such as A, B<D, and C≦B, and the thickness t of the insulating plate 19 is made equal to the thickness T of the chassis 1. In this example, A=22
mm, B=15mm, C=14.5mm, D=27mm, t=T=
In addition to 1mm, the thickness of the retaining plate 13 is 1.6mm, and the threaded part 7
The diameter of the connector 3 is 9.5 mm, the distance between the surfaces of the rotation stopper 10 is 7.5 mm, and using a torque wrench, connect the connector 3.
5, the connector tightening limit torque at which the notches 17, 17' of the holding plate 13 begin to break was 100 Kgf·cm, and when the insulating plate 19 was not used, it was 30 Kgf·cm.

As described above, the present invention can provide a terminal in which the chassis and the plug seat are well insulated.

In addition, the connector seat is attached to the third through hole of the holding plate, whose notch part is fitted with the fixing claw of the chassis to prevent rotation, so that the cable connector can be firmly tightened to the connector mounting part. Can be fixed.

Also, the first through hole is filled with an insulating plate and the nut is screwed onto the threaded part of the connector seat to secure the connector seat.
This structure prevents damage to the mounting member and retaining plate due to inadvertent over-turning of the nut when assembling the terminal.

Furthermore, since the holding plate does not rotate during assembly, the electrodes on the holding plate will always remain in the same position even during mass production, making it possible to efficiently complete television reception equipment. There is also the effect of

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are perspective views showing an exploded output terminal portion of a protector as an example of television receiving equipment. FIG. 3 is a diagram showing the connection state when the above-mentioned television receiving equipment is used. FIG. 4 is a perspective view showing the integrally molded mounting member. DESCRIPTION OF SYMBOLS 1... Chassis, 2... First through hole, 4... Output terminal, 11... Mounting member, 13... Holding plate, 1
8...Natsuto, 19...Insulating board.

Claims (1)

[Scope of utility model registration request] a chassis formed of a metal with good conductivity and having a first through hole therein; a chassis having a threaded part on one side of its flange and a connector mounting part on the other side; It is formed of an insulating material large enough to be locked around the through hole, and has a second through hole large enough to allow the threaded portion of the plug seat to penetrate therethrough, and the flange portion to be unable to penetrate therethrough. a fourth mounting member that is formed integrally with or separately from the mounting member from an insulating material, has an external shape that can be fitted into the first through hole, and can overlap with the second through hole; It has an insulating plate with a through hole, an outer shape large enough to fit around the first through hole, and a conductive electrode on one side of the insulating part of the insulating plate, and the above-mentioned contact in the center of the insulating plate. In a terminal for a television receiving device comprising a nut and a retaining plate having a third through hole shaped to allow the threaded portion of the stopper to be inserted therethrough in a non-rotating manner, the area around the first through hole of the chassis. has a pair of fixing claws protruding toward one side, and the holding plate is attached to the chassis with a pair of notches provided therein fitting into the pair of fixing claws, respectively. In addition, the first through hole of the chassis is filled with the insulating plate, the mounting member is attached to the other side of the chassis, and the third through hole is polymerized. The threaded portion of the plug seat is inserted into the hole, the fourth through hole, and the second through hole, respectively, and the flange portion of the plug seat locked in the third through hole and the screw 1. A terminal for television receiving equipment, characterized in that the plug seat is tightened and fixed to the chassis in an insulated state by the nut screwed onto the tip of the terminal.