JPH0245976Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a coaxial cable connector.
More specifically, this invention is a crimp-type coaxial cable that connects each device or component unit such as electronic equipment or electrical communication equipment, especially a coaxial cable that has a braided conductor as an outer conductor or shield wire. Regarding connectors.

[Conventional technology]

When connecting electronic devices, coaxial cables equipped with a braided outer conductor are used to prevent radio wave interference or to avoid damaging high frequency characteristics. Coaxial connectors are used to connect and disconnect cables.

There are several types of connection methods that connect connector contacts to this coaxial cable, but the crimping method, which compresses the cable with a contact and applies plastic deformation to connect it, Generally, it has the advantage of providing a stable and reliable connection.

However, in conventional crimp-type connectors for coaxial cables, when connecting the contacts to the cable conductor, the tubular part that is the end of the connector body is inserted inside the outer conductor, and the outside of the outer conductor is covered with a cylindrical sleeve. The main method was to compress the sleeve from the outside to apply plastic deformation.

However, with this type of conventional coaxial cable crimp connector, as the connector is repeatedly connected and disconnected from equipment,
There have been many problems, such as the outer insulating part surrounding the outer conductor of the cable being displaced from the outer conductor, and the conductor breaking and breaking near the connection area between the contact and the conductor.

[Purpose of invention]

In view of the above problems, the main purpose of this invention is to provide a crimp-type connector for coaxial cables that can reliably protect the outer conductor without causing the outer sheath of the cable to shift from the outer conductor.

The purpose of this invention is to provide a crimp-type connector for coaxial cables in which the constituent parts of the connector do not come off or shift after the connector is connected to the cable.

It is a further object of this invention to provide a coaxial cable crimp type connector in which the component parts of the connector attached to the coaxial cable can occupy predetermined positions and the whole can have a specified size. It is in.

[Structure of the idea]

A preferred embodiment of the coaxial cable connector of this invention will be described with reference to the accompanying drawings.

First, the coaxial cable to which the connector of this invention is attached is a normal one, and as shown in FIG. Surrounding braided outer conductor or shield conductor 10
4 and an outer insulator 10 covering the outside thereof.
It consists of 6.

The connector of the present invention for attachment to the end of the coaxial cable described above is designated by the reference numeral 10 in FIG. This connector 10 is made of a metal outer cylinder 12
, an outer conductor coupling member 14 , a central conductor coupling member 16 , a crimp outer cylinder 18 , and a cover member 20 .

Preferably, the outer sleeve 12 has a central opening 22 into which the outer jacket insulation 106 of the coaxial cable can be inserted, and has one end formed with an annularly projecting flange 24. A thick wall portion 26 is formed adjacent to the flange 24 to be crimped to the cable insulator 106. The thick portion 26 reaches an annular retaining recess 28 at a desired length, and then forms a crimp portion 30. The thick part 26 is a comb having a section 27 that protrudes inward when cut along its longitudinal axis, as shown in FIG. 2, so that it can be easily deformed when pressure is applied from the outside. Preferably, it is formed into a tooth shape.

The outer conductor coupling member 14 is connected to the flange 2 of the outer cylinder 12.
an annular collar 31 projecting outwardly on the side opposite 4;
A short metal cylinder 32 with an opening 34 into which the internal insulation 102 of the coaxial cable is inserted. The cylinder 32 is the internal insulator 102 of the coaxial cable.
and the outer conductor 104, and is fed into a position where the end surface of the annular collar 31 comes into contact with the end surface of the outer cylinder 12, as will be described later.

The central conductor coupling member 16 is very common in this type of coaxial cable connector, and includes a cylindrical body 38 and a tapered tip 4.
0, the main body 38 is provided with an opening 42 into which the central conductor 100 of the coaxial cable is inserted, and the outer peripheral surface of the main body 38 is made convenient for soldering the central conductor 100 inserted into the opening 42. diametrical solder opening 4 extending from to opening 42
4 is provided.

Next, the crimp outer cylinder 18 is attached to the outer cylinder 12 described above.
and the outer conductor coupling member 14, and surrounds the central conductor coupling member 16, and is a metal member that can constitute the main body of the connector. The crimp outer sleeve 18 includes a sleeve 46 that is inserted over the crimp portion 30 of the connector outer sleeve 12 , and the outer end of the sleeve 46 fits into the retaining recess 2 of the outer sleeve 12 .
An annular collar 48 forms a thick edge at position 8. The internal opening 50 of the sleeve 46 is located at a position where the outer edge of the outer cylinder 12 contacts the edge of the annular collar 31 of the external conductor coupling member 14, and the shoulder side surface that contacts the other edge of the annular collar 31. 52, the inner insulator 1 of the coaxial cable
02 as an inwardly protruding opening 54 in contact with the outer peripheral surface.

The crimp outer sleeve 18 extends longitudinally from the sleeve 46, and when the center conductor coupling member 16 is attached to the cable center conductor 100, the center conductor coupling member 16
An insulating end member 56 having an opening 54 surrounding the tapered tip 40 is provided.

A metal cover member 20 is attached to the opening 54 side of the crimp outer cylinder 18 to surround the outer cylinder 18 with an annular gap.

[How to install the connector]

A method of attaching the connector 10 of this invention constructed as described above to a coaxial cable will be explained.

First, as shown in FIG. 3, a desired length of the coaxial cable's outer insulation 106 is removed from its end to expose the braided outer conductor 104.

Next, as shown in FIG. The conductor 104 is left exposed.

Third, as shown in FIG. 4, a portion of the exposed end of the cable's braided outer conductor 104 is removed to expose a portion of the inner insulation 102.

Therefore, fourthly, the cylindrical body 32 of the external coupling member 14
Braided outer insulator 10 along inner insulator 102
4 and the internal insulator 102, and further push the cylinder 32 inside to bring the side surface of the annular collar 31 of the cylinder 30 into contact with the outer end surface of the outer cylinder 12, and push the cylinder 32 outward from the cylinder 30. The excess portion of the extending braided outer conductor 104 is cut and removed (FIG. 6).

Fifth, as shown in FIG.
The internal insulator 10 extends further outward and is exposed.
2 and cut out a portion of the central conductor 10 of the cable.
Expose the tip of 0.

Sixth, the exposed end of the center conductor 100 is inserted into the opening 42 of the body 38 of the center conductor coupling member 16, and the body 38 is pressed to move the center conductor 100 into the opening 42.
2 or by soldering the central conductor 100 into the opening 42 of the main body 38 using the soldering opening 44 (7th
figure).

Next, the sleeve 46 of the crimp outer sleeve 18 is mounted on the crimp portion 30 of the connector outer sleeve 12, so that the shoulder side surface 52 of the internal opening 50 of the sleeve 46 is precisely aligned with the outer end surface of the annular collar 31 of the external conductor coupling member 14. Push it in so that it makes contact. Then, the thick end edge 48 of the sleeve 46 can reach the position of the retaining recess 28 of the outer cylinder 12 (FIG. 8).

Here, the thick part 2 of the contact outer cylinder 12
6 and the sleeve 46 of the crimping outer cylinder 18 fitted onto the crimping part 30 of the contact outer cylinder 12 are pressed from the outside by appropriate means to press the thick part 26 of the contact outer cylinder 12. At the same time, the sleeve 46 of the crimp outer cylinder 18 is pressed against the crimp part 30 of the outer cylinder 12, and the crimp part 30 is crimped and fixed onto the sheath insulator 106 of the cable. can. Therefore, the cover member 20 is attached to the tip of the crimp outer cylinder 18.

[Effect of idea]

Coaxial cable crimp type connector 10 of this invention
is attached to the end of the cable as described above, so the cable outer insulation 1
06 is the mounting part of the connector, that is, the outer cylinder 12
The thick portion 26 and the crimping portion 30 are securely crimped and fixed. Therefore, the outer insulation 106 of the cable does not shift relative to the rest of the cable. Also, connect the cable to this connector 1
After connecting to an electronic device etc. using 0, even if the cable part distant from the connector 10 is pulled and pulled, the cable's outer insulator 106 will not come off or shift from the connector 10. .

Furthermore, as a result of experiments in which the connector 10 of this invention was coupled to a coaxial cable, it was found that the crimping fixing force was approximately the same as the tensile breaking force in the axial direction of the cable, and the cable was also subjected to a bending test. As a result, there were no problems such as breakage or cutting at the crimped portion.

[Brief explanation of the drawing]

Figure 1 is an exploded view of the coaxial cable crimp-type connector of this invention, Figure 2 is a vertical sectional view showing the connector of this invention attached to the coaxial cable, and Figure 3 is an exploded view of the coaxial cable. The schematic diagrams showing the structure, from FIG. 4 to FIG. 8 are schematic diagrams for explaining the process of attaching the connector of this invention to a coaxial cable. The main reference numbers in the figures are listed as follows. DESCRIPTION OF SYMBOLS 10... Crimp type connector, 12... Outer cylinder, 14... Outer conductor coupling member, 16... Center conductor coupling member, 18... Crimp outer cylinder, 20... Cover member, 26... Flesh of outer cylinder 12 Thick part, 27... Inner protrusion of thick part 26, 28... Preventing recess of outer cylinder 12, 30... Crimping part of outer cylinder 12, 32... Cylindrical body of external conductor coupling member 14, 38... ...Main body of central conductor coupling member 16, 40...Central conductor coupling member 1
The tip of 6, 46...sleeve of the crimp outer cylinder 18,
48... Thick edge of crimp outer cylinder, 100... Central conductor of cable, 102... Internal insulator of cable, 104... Braided outer conductor of cable, 106
...Cable insulation.

Claims (1)

[Claims for Utility Model Registration] 1. A coaxial cable consisting of a center conductor, an inner insulator surrounding the center conductor, an outer conductor braided on the inner insulator, and an outer insulator surrounding the outer conductor. (a) the connector comprises a metal outer cylinder, an outer conductor coupling member, a central conductor coupling member, and a crimp outer cylinder; (b) the metal outer cylinder comprises the (c) the outer conductor coupling member is a cylinder inserted between the outer conductor and the inner insulator; (d) the center a conductor coupling member having a tapered tip for connecting to the central conductor; (e) surrounding the crimp outer cylinder and the central conductor coupling member and applying pressure from the outside; A crimp-type connector for a coaxial cable, in which a crimp portion of the metal outer cylinder can be fixed to the crimp outer cylinder and also to an outer insulator. 2. The connector according to claim 1, wherein the cross section of the thick walled portion of the metal outer cylinder in the longitudinal axis direction is comb-shaped with a protrusion. 3. An annular retaining portion is provided between the thick walled portion of the metal outer cylinder and the crimping portion, and a thick end is provided at one end of the crimp outer cylinder at the annular retaining portion. The connector according to claim 1, further comprising an annular collar forming a rim.