JPH0513133A - Coaxial connector - Google Patents

Abstract

PURPOSE:To enhance the press-fixing working property without reducing the connecting performance between a plug and a jacket by providing a slit between the press-fixing area of a housing and the connecting are of the plug, and forming only the press-fixing area into a C-shaped pipe. CONSTITUTION:A jack 11 connected to a coaxial cord 1 is formed in the state ensuring the continuity between a housing 12 formed into a C-shaped pipe by a slit 12d laid along longitudinal direction and a shield 1c by pressing the press- fixing area of the housing 12 in which a metal pipe 7 is present by a pressing jig not shown. The deforming area of the housing 12 is limited from the slit 12c formed in a depth leaving the thickness of the housing 12 to the C-shaped pipe area on the coaxial cord 1 side. Since the deformation of the housing 12 can be realized with a small press-fixing force, thus, the press-fixing work with less dispersion can be easily performed without reducing the connecting performance with a plug.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a coaxial connector, and more particularly to a coaxial connector which improves the workability of crimping a coaxial cord without lowering the connection performance between plugs and jacks to improve the productivity.

In the field of electronic equipment in recent years, the speeding up of signals is progressing in order to increase the processing speed of information, but in the exchange of such high speed signals, a coaxial code is often used to block fine noise. Therefore, there is a strong demand for miniaturization of the coaxial connector corresponding to the cord.

[0003]

2. Description of the Related Art FIG. 2 is a diagram for explaining a configuration example of a conventional coaxial connector, (2-1) shows a configuration order of components and connectors, and (2-2) shows a state at the time of configuration. It is a thing.

In the drawings, the case of a jack connector is described as an example, but each is shown in a cross section including the central axis. The coaxial cord 1 shown by (2-1) in FIG. 2 is a normal one, and the periphery of the insulator 1b covering the core wire 1a is formed by being covered with a shield 1c such as a mesh wire. The surrounding area is covered with a protective jacket 1d.

On the other hand, a coaxial jack connector (hereinafter simply referred to as a jack) 2 connected to one end of the coaxial cord 1 has a pipe-shaped housing 4 in which a cylindrical insulator 3 is concentrically fixed inside an opening at one end. And the core wire 1a of the coaxial cord 1
, A cylindrical terminal holding insulator 6 for holding and fixing the jack terminal 5 mounted on the tip of the housing, the jack terminal 5 mounted on the core wire 1a at a predetermined position in the housing 4 with its central axis aligned, and a coaxial cord. 1 and at least a metal pipe 7 for protecting the coaxial cord 1 when the housing 4 is pressure-bonded and fixed.

The housing 4 has a mating surface 4a formed on the end of the insulator 3 on the fixed side, which is to be fitted with a coaxial plug connector, which will be described later. A hole 4b having a diameter into which the insulator 6 can be smoothly inserted is formed with a step 4b 'so that the insulator 6 can be inserted to a predetermined position.

The jack terminal 5 has one end formed on a shaft portion 5a having a diameter fitting with the inner diameter portion 6a of the terminal holding insulator 6, and the other end portion having a diameter larger than the shaft portion 5a has an end surface from the end surface. A jack contact 5b is formed by axially forming a hole 5b _-1 and further forming a diametrical slit 5b _-2 in the axial direction, and then pressing the end face in the direction of crushing the slit 5b _-2 . Along with the shaft portion 5a, the core wire 1a of the coaxial cord 1 is also provided.
A hole 5c that can be inserted into and a solder hole 5d that crosses the hole 5c are formed.

Then, after inserting the core wire 1a of the coaxial cord 1 into the hole 5c, the two are soldered at the solder hole 5d.
The jack terminal 5 can be connected to the core wire 1a and then to the coaxial cord 1.

Further, the metal pipe 7 has an inner diameter substantially equal to the outer diameter of the insulator 1b of the coaxial cord 1 and an outer diameter smaller than the hole diameter of the hole 4b of the housing 4. Reference numeral 8 in the drawing denotes a coaxial plug connector (hereinafter referred to as a plug) corresponding to the jack 2, and a plug contact 10a of a plug terminal 10 located on the central axis of a cylindrical metal shell 9.
Is insulated and fixed to the metal shell 9, and the inner surface 9a of the metal shell 9 is a fitting surface with the fitting surface 4a of the housing 4.

Therefore, first, the jacket 1d is peeled off from the end face with an appropriate length, and the exposed shield 1c is floated from the surface of the insulator 1b by a means such as opening the mesh, and the insulator 1b is attached with an appropriate length from the end face. The core wire 1a is exposed by peeling.

Next, the metal pipe 7 and the terminal holding insulator 6
After passing through the insulator 1b and the core wire 1a, the jack terminal 5 is connected to the tip of the core wire 1a by the method described above. In this state, when the coaxial cord 1 is inserted into the housing 4 from the jack terminal 5 side as indicated by a broken line a, the jack terminal 5 positioned by the inner diameter portion 6a of the terminal holding insulator 6 is inserted into the central axis of the housing 4. Can be set to a predetermined position.

After that, when the shield 1c floated from the insulator 1b of the coaxial cord 1 is pushed into the gap between the metal pipe 7 and the inner wall surface of the housing 4, the state shown in (2-2) can be obtained.

Therefore, using a jig or the like (not shown), the area where the metal pipe 7 is present is surrounded by the arrow b from the periphery of the housing 4.
By pressing the housing 4 and deforming the housing 4 slightly as described above, it is possible to configure the jack 2 which is crimped and fixed to the coaxial cord 1 in a state in which the conduction between the housing 4 and the shield 1c is secured.

Since the insulator 1b of the coaxial cord 1 is protected by the metal pipe 7, the slight deformation at the crimping portion of the housing 4 does not affect the insulator 1b and the core wire 1a.

Therefore, in the jack 2 having such a structure, since the jack contact 5b region of the jack terminal 5 located inside the housing 4 is located at the free end, a reliable connection with the above-mentioned plug contact 10a is realized. can do.

However, the crimping area of the housing 4 is in the vicinity of the end of the housing 4 having a pipe shape. Therefore, when the coaxial cord 1 is pressure-bonded and fixed, the pressure-bonding force, and thus the deformation amount of the housing 4, tends to vary, and it is difficult to always ensure reliable pressure-bonding.

For example, when the crimping force is too small, the jack 2 is likely to come out of the coaxial cord 1 and the conduction between the two becomes unstable, and when the crimping force is too large, stable conduction can be secured, but the crimping force is secured. In some cases, the deformation distortion of the housing 4 due to the above phenomenon spreads to the whole, and the smooth and reliable connection between the jack contact 5b and the plug contact 10a, that is, the jack 2 and the plug 8 is hindered.

Therefore, the present situation is that the crimping work is performed with a lot of man-hours and costs.

[0019]

However, the conventional coaxial connector has a problem in that it requires a large number of man-hours and costs for crimping with the coaxial cord, and that productivity cannot be expected to be improved.

[0020]

SUMMARY OF THE INVENTION The above object is to provide a jack-shaped or plug-terminal mounted on a core wire end of a coaxial cord at a predetermined position on a central axis near the opening near the other end side opening of a pipe-shaped housing. Is a coaxial connector configured to press the crimping region of from the periphery thereof and crimping and fixing a coaxial cord located in the housing while maintaining electrical continuity between the shield and the housing, wherein the pipe-shaped housing is Between the crimping area for the coaxial cord and the connecting area for the coaxial plug connector or the coaxial jack connector in which the jack terminal or the plug terminal is located, there is provided a slit having a depth that leaves at least the thickness of the housing in the direction traversing the housing. And the pressure-bonding area separated from the connection area by the slit is formed in a C-pipe shape. It is achieved by a coaxial connector being.

[0021]

By separating the crimping region for the coaxial cord from the connecting region with the plug, the influence of the crimping force during the crimping work on the connecting region with the plug can be eliminated.

According to the present invention, a slit which is only partially connected is provided between the crimping region of the housing and the connecting region of the plug to separate the two, and the crimping region alone is formed into a C-pipe shape to facilitate the crimping work. I am trying to make it.

This means that the pressure-bonding force is likely to be constant. Therefore, it is possible to suppress the influence of the deformation strain applied to the housing on the connection area with the plug at the time of crimping, and it is possible to improve the productivity.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining an example of the structure of a coaxial connector according to the present invention. Like FIG. 2, (1-1) shows the order in which the constituent members and connectors are arranged, and (1-2) shows the structure. It shows the state of time. Note that, in the drawing, the case of the jack connector of FIG. 2 is taken as an example, so that the same symmetrical members as those in FIG. 2 are represented by the same symbols.

In FIG. 1 (1-1), the coaxial cord 1 is the same as that described in FIG. A coaxial jack connector (hereinafter referred to as a jack) 11 connected to the coaxial cord 1 includes at least a housing 12 according to the present invention, the jack terminal 5, the terminal holding insulator 6 and the metal pipe 7 described in FIG. Configured.

In particular, the housing 12 in this case is shown in FIG.
The housing 4 has a shape that can be formed by additional processing. That is, as in FIG. 2, a tubular insulator 3 is concentrically fixed inside the opening at one end, and a fitting surface 12a with the coaxial plug connector described in FIG. 2 is formed outside the opening. A hole 12b having a diameter into which the terminal holding insulator 6 can be inserted is formed from the other end opening to a predetermined position with a step similar to that shown in FIG.

Further, at a position substantially corresponding to the length of the metal pipe 7 from the opening of the other end, a slit 12c extending in a direction traversing the housing 12 is formed at least to a depth at which the thickness of the housing 12 is left. Between the slit 12c and the other end opening, as shown in the front view (a), a slit 12d along the longitudinal direction is formed into a C pipe shape.

Therefore, as in the case of FIG. 2, the metal pipe 7
And the terminal holding insulator 6 between the insulator 1b of the coaxial cord 1 and the core wire.
After connecting the jack terminal 5 to the tip of the core wire 1a through 1a,
When the coaxial cord 1 is inserted into the housing 12 from the jack terminal 5 side as shown by a broken line c, the jack terminal 5 positioned by the terminal holding insulator 6 is set at a predetermined position on the central axis in the housing 12. You can

After that, when the shield 1c floated from the insulator 1b of the coaxial cord 1 is pushed into the gap between the metal pipe 7 and the inner wall surface of the housing 4, the state shown in (1-2) can be obtained. Note that (1-2) represents (1-1) as viewed from the direction of arrow d.

Next, the area formed in the C-pipe shape, in other words, the area where the metal pipe 7 is present is pressed from the periphery of the housing 12 using a jig or the like (not shown) as indicated by arrow e. By deforming the region, the jack 11 connected to the coaxial cord 1 can be configured while ensuring the conduction between the housing 12 and the shield 1c.

Particularly, in this case, since the deformation of the housing 12 can be realized with a smaller pressure bonding force than in the case of FIG. 2, the pressure bonding work with less variation can be easily performed, and the deformation region of the housing 12 is slit. It is limited to the region from the 12c to the coaxial cord 1 side, that is, the C pipe region, and in the modified region, the insulator of the cord 1 is the same as in the case of FIG.
Since 1b is protected by the metal pipe 7, it does not affect the core wire 1a.

Furthermore, since the jack contact 5b region of the jack terminal 5 located inside the housing 12 is in the same state as in FIG. 2, a reliable connection with the plug contact 10a can be secured.

Therefore, it is possible to easily construct a coaxial connector which is excellent in the workability of crimping the coaxial cord and has good productivity without deteriorating the connection performance with the plug.

[0034]

As described above, according to the present invention, it is possible to easily provide a highly productive coaxial connector which is excellent in workability for crimping a coaxial cord without deteriorating the connection performance between the plug and the jack.

In the description of the present invention, the case where the coaxial jack connector is crimped onto the coaxial cord is taken as an example, but it is clear that the same effect can be obtained even when the coaxial plug connector is crimped onto the coaxial cord.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration example of a coaxial connector according to the present invention.

FIG. 2 is a diagram illustrating a configuration example of a conventional coaxial connector.

[Explanation of symbols]

1 Coaxial cord 1a Core wire 1b Insulator 1c Shield 3 Insulator 5 Jack terminal 5b Jack contact 6 Terminal holding insulator 7 Metal pipe 10a Plug contact 11 Coaxial jack connector 12 Housing 12a Mating surface 12b Hole 12c Slit 12d Slit

Claims (1)

Claims: 1. A pipe-shaped member for holding a jack terminal (5) or a plug terminal attached to an end of a core wire (1a) of a coaxial cord (1) at a predetermined position on the central axis near the opening. It is constructed by pressing the crimping area near the opening on the other end side of the housing from its periphery and crimping and fixing the coaxial cord (1) located in the housing while maintaining electrical continuity between the shield (1c) and the housing. A coaxial connector, wherein the pipe-shaped housing is provided between the crimping area for the coaxial cord (1) and the connection area for the coaxial plug connector or the coaxial jack connector where the jack terminal (5) or the plug terminal is located. A slit (1 with a depth that leaves at least the thickness of the housing in the direction transverse to
2c), and (12c) the crimping area separated from the connection area by the slit is formed in a C pipe shape.