JPS5850619Y2 - Coaxial cable connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coaxial cable connection structure, and particularly to a coaxial cable connection structure between devices or adjustment panels in broadcasting equipment.

Generally, this type of coaxial cable connection structure is used to connect video signals between devices or adjustment panels in broadcasting equipment.

The conventional connection structure of this type of coaxial cable is, for example,
The type shown in the figure has been used, but this type has the following drawbacks.

That is, (1) since the connecting portion 12 of the coaxial cable 11 is exposed, crosstalk is likely to occur between the cables.

(2) Due to poor crosstalk characteristics between cables, cables cannot be mounted at narrow intervals.

(3) Since the cable support plate 13 is fixed to the support body 14 using screws 15, it is difficult to perform connection work.

(4) Since the cable is fixed with screws, it is necessary to tighten the screws 15 a little, which increases the surface area and reduces the mounting density of the coaxial cable.

The purpose of this proposal is to eliminate the above-mentioned drawbacks and to enable high-density packaging with good crosstalk characteristics between coaxial cables by using the method described below.

That is, (1) the sleeve is fixed by an insertion method, which eliminates the flange space and increases the number of mountings per area.

(2) Cover the coaxial cable connection with a shield case,
Measures to improve crosstalk characteristics.

(3) Since crosstalk characteristics are improved, cables can be mounted at narrower intervals, increasing cable mounting density.

(4) A crimp connection method is used to connect the outer conductor of the coaxial cable to the sleeve to ensure uniform quality.

The present invention will be explained below by way of examples with reference to the drawings.

FIG. 2 shows an overall perspective view showing the assembly process of the embodiment of the present invention, and FIG. 3 shows a partially sectional front view after assembly.

The structure and operation of the present embodiment will be explained below with reference to FIGS. 2 and 3.

First, the assembly of the present embodiment is performed in the following order.

(1) Housing 1 with stepped holes molded from insulator
to a panel not shown.

(2) After inserting the coaxial cable 2 with the outer conductor 9 and its outer sheath removed by a certain length, which is the tip, into the conductive coaxial sleeve 3 and expanding the end of the outer conductor 9 slightly outward,
This part is placed over the outer peripheral surface of the rear end of the sleeve 3, and the outer conductor 9 is crimped onto the sleeve 3 from the outside using the caulking ring 4.

(3) Insert the coaxial cable assembly assembled in (2) above into the stepped hole of the housing 1 from the back side of the housing 1, and fix the assembly to the housing 1 with the retention spring 5.

(4) A connecting piece 6 is soldered between the exposed central conductor 8 at the tip of each coaxial cable 2 of a pair of coaxial cable assemblies fixed to the housing 1 to electrically connect them.

(5) Finally, the tips of the pair of coaxial cable assemblies are covered with a common shielding case 7, and at the same time electrical connection is made between both sleeves.

As for the effects of the present embodiment with the above configuration, there are many advantages as described below.

(1) Crosstalk characteristics can be improved by inserting the shield case 7 into the coaxial sleeve 3 to shield signals from other surrounding coaxial cables.

(2) Coaxial sleeve 3 for fixing coaxial cable 2
By making the coaxial cable cylindrical to reduce its surface area, it is possible to increase the density of coaxial cable mounting.

(3) The coaxial cable 2 can be easily fixed by using the retention spring 5 and using an insertion structure with a stopper.

(4) The terminal treatment of the coaxial cable uses a crimping method to improve workability.

As described above, according to the present invention, the drawbacks of the conventional method are eliminated, and the coaxial cable can be easily installed by simply inserting the assembly in which the coaxial cable end is fixed through the coaxial sleeve into the housing. By using a shielding case at the tip of a pair of coaxial cables, crosstalk characteristics are improved, and since the coaxial sleeve is cylindrical, it requires less area, which improves coaxial cable mounting efficiency. There are many advantages such as:

[Brief explanation of drawings]

Figure 1 is a perspective view of an example of a conventional coaxial cable connection structure.
FIG. 2 is an overall perspective view showing the assembly process of the embodiment of the present invention, and FIG. 3 is a partially sectional front view after the assembly shown in FIG. 2. The symbols used in the drawings indicate the following. 1... Housing, 2... Coaxial cable, 3... Coaxial sleeve, 4... Caulking ring, 5... Retention spring, 6
...Connection piece, 7...Shield case,
8... Center conductor tip, 9... Outer conductor end.

Claims (1)

[Scope of utility model registration request] In a coaxial cable connection structure, a coaxial cable with an outer conductor and its outer sheath removed by a certain length at the tip is inserted into a conductive coaxial sleeve, and the outer circumferential surface of the rear end of the sleeve is provided with the end of the outer conductor. A coaxial cable assembly whose parts are crimped from the outside with a caulking ring is inserted into the through hole of the insulating housing and fixed with a retention spring or the like, and each coaxial cable in the pair of coaxial cable assemblies having the above structure is inserted into the through hole of the insulating housing. The exposed center conductors at the tips are electrically connected by a connecting piece, and the tips of the pair of coaxial cable assemblies are covered by a common shielding case, and at the same time, the sleeves of both sleeves are electrically connected. A coaxial cable connection structure characterized by: