JPS5915429Y2 - Coaxial cable connector - Google Patents

Description

[Detailed description of the invention] This invention relates to a coaxial cable connector suitable for use in, for example, television receivers, etc., and in particular, a coaxial cable connector that allows easy installation of the coaxial cable connected to the rear side. This is what we are trying to provide.

FIG. 1 shows a conventional coaxial cable connector.

In the figure, numeral 1 indicates a cylindrical shell made of a conductor. A flange 2 is formed on this cylindrical shell 1 .

The flange 2 and nut 3 allow it to be attached to, for example, a panel plate of the device.

That is, a male thread is formed on the circumferential surface of the cylindrical shell 1, and the nut 3 is screwed into this male thread so that the panel plate can be clamped between the flange 2 and the nut 3.

A center contact support 4 made of an insulator is mounted in the hollow portion of the cylindrical shell 1, and a center contact 5 made of a spring material is supported on the axis of the support 4.

The rear end side of the center contact 5 protrudes from the end of the center contact support 4 to form a terminal 6, and a center conductor of a coaxial cable 7 as wiring within the device is soldered to this terminal 6.

The outer conductor of the coaxial cable 7 is placed over the outer peripheral surface of the rear end of the cylindrical shell 1, and in this state, the inner surface of the cap nut 8 screwed onto the rear end of the cylindrical shell 1 covers the outer peripheral surface of the rear end of the cylindrical shell 1. The outer conductor is electrically connected to the cylindrical shell 1 by pressure contact.

A connector plug (not shown) is attached to the tip side of the cylindrical shell 1, and the center contact of the plug is inserted into the palm part of the center contact 5, and the coaxial cable on the plug side and the coaxial cable 7 on the back side are electrically connected. It is configured to be connected to each other.

As described above, the conventional coaxial cable connector requires soldering to connect the coaxial cable 7 as wiring, which is troublesome.

Further, since the terminal 6 of the outer conductor of the coaxial cable 7 is close to each other, an accident in which the outer conductor and the terminal 6 come into contact when tightening the cap nut 8 is likely to occur.

Furthermore, the coaxial cable 7 is likely to rotate when the cap nut 8 is tightened.

If the coaxial cable 7 rotates too much, an accident may occur in which the center conductor of the coaxial cable 7 breaks at the soldered portion of the terminal 6.

For these reasons, the work of installing the coaxial cable 7 is considered difficult.

The purpose of this invention is to provide a coaxial cable connector that allows easy wiring of coaxial cables.

In this invention, the central contact is provided with a connecting part at both the front end and the rear end, and the central conductor of a coaxial cable that is attached as wiring is held between the connecting parts to maintain contact.

Therefore, according to this invention, a coaxial cable can be attached without performing soldering work.

An embodiment of this invention will be described below in detail with reference to the drawings.

FIG. 2 shows an embodiment of this invention.

In the figure, the same reference numerals are given to the parts corresponding to those in FIG. At the same time, the center contact support 4 made of an insulating material is inserted into the hollow portion of the cylindrical shell 1 from the rear end side of the cylindrical shell 1.

The center contact support 4 has an off-center contact storage hole from the tip side to the vicinity of the rear end, and the rear end side is closed, and the closed end surface has a hole through which the center conductor of the coaxial cable 7 passes and an insulating layer covering the center conductor. Form a hole into which the part will be inserted.

The rear end of the center contact support 4 is formed to be larger than the diameter of the hollow portion of the cylindrical shell 1, and a tapered surface 4a whose diameter becomes smaller toward the rear end is formed on the outer periphery.

Therefore, this tapered surface 4a is exposed to the outside of the cylindrical shell 1 at the rear end side of the cylindrical shell 1.

Insert the center contact 5 into the hole of the center contact support 4.

In this invention, the central contact 5 is formed with palm-joining portions on both the leading end and the rear end.

On the other hand, the cap nut 8 has a female thread that is screwed into a male thread formed on the outer peripheral surface of the rear end of the cylindrical shell 1, and the rear end of this female screw has a tapered surface whose diameter becomes smaller toward the rear end. form.

A method for connecting the coaxial cable 7 in the above configuration will be explained.

The cap nut 8 is removed from the cylindrical shell, and the coaxial cable 7 is inserted from the rear end side of the cap nut 8.

At the tip of the coaxial cable 7, the outer sheath is peeled off and the exposed external conductor is expanded.

By expanding the outer conductor, a predetermined amount of the outer skin insulating the exposed inner conductor is peeled off to expose the center conductor.

This exposed center conductor is inserted from the rear end side of the center contact support and inserted into the rear end side folding portion of the center contact 5.

This electrically connects the center conductor of the cable 7 to the center contact 5.

Further, the outer conductor of the cable 7 is placed over the tapered surface 4a formed at the rear end of the center contact support 4.

In this state, the cap nut 8 is screwed into the female thread formed at the rear end of the cylindrical shell 1 and tightened.

During this tightening, the outer conductor of the cable 7 is sandwiched between the tapered surface formed on the rear end side of the cap nut and the tapered surface formed on the center contact support 4, and the cable 7 is mechanically connected to the connector. At the same time, the external conductor is electrically connected to the cylindrical shell 1 through the cap nut 8.

Thus, according to this invention, the coaxial cable 7 can be wired and connected to the connector without soldering.

Therefore, wiring can be easily performed.

Since the center conductor of the coaxial cable 7 is inserted into the hollow part of the center contact support 4 and held between the palms of the center contact 5, the inner conductor is not exposed to the outside of the center contact support 4.

Therefore, the outer conductor of the coaxial cable 7 does not come into contact with the center conductor or the center contact 5.

Furthermore, even if the cable 7 rotates when the cap nut 8 is tightened, the center contact 5 allows the center conductor to rotate, so there is no possibility of the center conductor returning and being cut.

Therefore, a highly reliable coaxial cable connector can be provided, and its effects are extremely large in practical use.

[Brief explanation of the drawing]

FIG. 1 is a sectional view for explaining a conventional coaxial cable connector, and FIG. 2 is a sectional view showing an embodiment of this invention. 1: cylindrical shell, 4: center contact support, 5: center contact, 8° cap nut.

Claims (1)

[Claims for Utility Model Registration] A. A cylindrical shell made of a conductor with a male thread on the outer periphery of the rear end; B. A cylindrical shell made of an insulator and having a hole for supporting a contact in the shaft center and a hole for supporting a contact on the rear end. A center contact support having a tapered surface whose diameter becomes smaller toward the end, and is mounted in the hollow part of the cylindrical shell so that the tapered surface is exposed from the rear end of the cylindrical shell; A center contact that is attached to a contact support hole formed in the axis of the contact support and has a pair of palms on both the front end and the rear end that hold the center conductor of the coaxial cable and maintain contact; D, a conductive material; The inner periphery of the cylindrical shell has a female thread that is screwed into the male thread formed on the cylindrical shell, and the rear end of the female thread has a tapered surface whose diameter becomes smaller toward the rear end. , a bag for electrically connecting the outer conductor of the coaxial cable to the cylindrical shell, the outer conductor of the coaxial cable being able to be brought into pressure contact between the tapered surface and the tapered surface formed on the center contact support; A coaxial cable connector consisting of a nut and.