JP2002324632A - Coaxial cable connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coaxial cable connector which has the same structure regardless of the types of a drain wire and can make a steady and stable connection by a simple and easy work without relying on a skilled worker of soldering. SOLUTION: A drain wire connecting member 160 which is integrally formed by a metal plate having a drain wire crimping part 161, a cable fixing part 162 and a ground connecting member 160, is added to a conventional coaxial cable connector. This drain wire connecting member 160 is fixed to the coaxial cable 500 by the cable fixing part 162 by crimping the drain wire 531 of the coaxial cable to the drain wire crimping part 161 and by folding back at the end of the outer cover 540. And the terminal of the coaxial cable attached with the drain wire connecting member is connected by pushing its central conductor 510 into the slit of the center conductor connecting part 143 of the signal contact, and by pushing the ground connecting part 163 of the drain wire connecting member into the outer conductor connecting part 153 of the ground contact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial cable connector and, more particularly, to a coaxial cable connector which facilitates terminal processing, mounting and connection work of a coaxial cable including a drain wire as one of external conductors.

[0002]

2. Description of the Related Art When a connector for a coaxial cable is attached to a terminal portion of a coaxial cable including a drain wire as one of the outer conductors, the terminal treatment, installation work and connection work of the coaxial cable become simple and easy. Such a coaxial cable connector has been proposed. FIG. 4 shows a conventional example of such a coaxial cable connector.
(A) to (c) and FIG.

The coaxial cable connector 100x is
An example is shown in which a mating connection is made with a receptacle type connector 200 as a connection partner, and a base insulator 11 is shown.
0, cover insulator 120x, shell 130, signal contact 140, and ground contact 15
0, and details thereof are as follows. In addition, the receptacle type connector 200
Has a configuration including a receptacle-side signal contact 210, a receptacle-side ground contact 220, and a receptacle-side insulator 230 for holding and fixing these.

First, a signal contact 140 has a contact connecting portion 141 and a signal connecting arm 142 which are in the form of a forked bifurcated shape and are in contact with and connected to the receptacle side signal contact 210 so as to sandwich the signal contact 210 therebetween. A Y-shaped slit is formed to extend and open at the tip end side, and the center conductor connecting part 143 to which the center conductor 510 of the coaxial cable 500 is pushed and connected with the inner coating 520 is inserted. When,
And is formed of a conductive material, for example, one metal plate.

[0005] The ground contact 150 is formed in a bifurcated fork shape and is in contact with and connected to the receptacle-side ground contact 220 so as to sandwich the ground contact 220 therebetween.
52a, 152b, and a Y-shaped slit extending from the root thereof and extending toward the tip thereof and opening at the tip end thereof. An external conductor connection to which the drain wire 531 of the coaxial cable 500 is pushed and connected is formed. Part 153
And is formed of a conductive material, for example, one metal plate.

Next, the signal insulator 140 and the ground contact 150 are formed on the base insulator 110. The signal insulator 140 and the ground contact fixing portion 112 are formed on the base insulator 110.
To the center conductor connection portion 143 and the external conductor connection portion 15
3 are located close to each other, and the slit is provided at the end of the center conductor 51 of the coaxial cable 500 from the opening.
0 and the drain line 531 are arranged, accommodated, held and fixed so that they can be pushed in.

The cover insulator 120x is
A center conductor holding portion and an outer conductor holding portion, which are not shown in the drawing, are provided on the opposite side in FIG. 5. And the outer conductor 53
0 accommodates and holds the portion of the drain line 531, and the signal contact 140 and the ground contact 150
Is held, held and fixed in the base insulator 11
0, and connects the center conductor 510 to the signal contact 14.
0 and inserted into the Y-shaped slit of the center conductor connecting portion 141 (the inner coating 520 is broken at the edge of the slit),
The drain wire 531 is pushed into the Y-shaped slit of the external conductor connection portion 153 of the ground contact 150 and connected thereto, thereby covering and protecting these contact cable connection portions and the periphery thereof.

The shell 130 covers the periphery of the base insulator 110 and the cover insulator 120x connected to each other to secure the connection state, while the cover insulator 1 of the coaxial cable 500
The part derived from 20x is retained and reinforced.

The coaxial cable connector 100x is
The terminal processing of the coaxial cable 500 is performed by the center conductor 510.
A portion other than the drain wire 531 of the outer cover 540 and the outer conductor 530 is exposed (for example, a shield tape) so that only the drain wire 531 is exposed to the specified size. , Shield braided wire, etc.)
Easy work is required, and the installation and connection of the coaxial cable 500 can also be performed by the terminal-processed coaxial cable 500.
The center conductor 510 with the inner coating 520 and the drain wire 531 are divided into a center conductor holding portion and an outer conductor holding portion of the cover insulator 120x, and the cover insulator 120x is held and coupled to the base insulator 110x. , It can be done simply and easily.

[0010]

The above-described conventional coaxial cable connector 100x includes a signal contact 14
0 is provided with a central conductor connecting portion 143 in which a Y-shaped slit that opens toward the distal end is formed, and a Y-shaped slit that also opens toward the distal end is provided on the ground contact 150. Are formed, and the external conductor connection portion 153 is provided.
The central conductor 510 and the drain conductor of the coaxial cable 500 from the opening thereof are formed in the slits of the base conductor 40 and the ground contact 150 in the base insulator 110, the central conductor connection part 143 and the external conductor connection part 153 thereof are close to each other. 531 is arranged so as to be able to be pushed in, accommodated, held and fixed, and the cover insulator 1
20x, the end of the coaxial cable 500, the center conductor 510 with the inner coating 520, and the drain wire 53
1 and accommodates and holds the cover insulator 120.
x is coupled to the base insulator 110, the center conductor 510 is pressed into the center conductor connection portion 143 of the signal contact 140, and the drain wire 531 is pressed into the outer conductor connection portion 153 of the ground contact 150 and connected. So the coaxial cable 5
00, the central conductor 510 is exposed to a specified size while the inner conductor 520 is provided, and the outer conductor 53 is exposed.
The zero portion is a simple and easy operation of exposing only the drain line 531 by a specified size and cutting off the other portion.
The installation and connection work of the coaxial cable 500 is also simple, in which the central conductor 510 with the inner coating 520 and the drain wire 531 that have been processed are housed and held in the designated portions of the cover insulator 120x, and the cover insulator 120x is connected to the base insulator. The type of the drain wire 531 of the coaxial cable 500 may be a single wire, a stranded wire formed by tin overcoating into a single wire, or a stranded wire without a tin overcoat. The drain wire as a stranded wire is untwisted when pushed into the slit of the external conductor connection portion 153 of the ground contact 150, and the connection to the external conductor connection portion 153 is lost. There is a problem that it becomes impossible and unstable, and to solve this problem There are methods such as soldering the drain wire to the external conductor connection portion 153, and forming the drain wire into a single line by soldering, etc. In the former case, the structure needs to be changed. However, there is a problem that the cost must be increased due to the reliance on soldering technicians.

In view of the above-mentioned problems of the prior art, an object of the present invention is to provide a coaxial cable having the same structure irrespective of the type of drain wire, and a simple and easy operation without relying on a soldering technician. An object of the present invention is to provide a coaxial cable connector capable of obtaining a reliable and stable connection.

[0012]

A connector for a coaxial cable according to the present invention is a connector for a coaxial cable attached to a terminal portion of a coaxial cable including a drain wire as one of external conductors. It is characterized by having. (A) A signal / contact connection portion that is in contact with the signal / contact electrode portion on the connection partner side, and a Y-shaped slit that is connected to the signal / contact connection portion and extends and opens at the tip end side is formed. A central conductor connecting portion into which the central conductor of the coaxial cable is pushed into and connected to the lever slit; a signal contact formed of a conductive material; and (b) a contact connection with a ground / contact electrode portion of a connection partner. And a Y-shaped slit which extends to and connects to the ground / contact connecting portion and extends to the distal end side, and the drain wire of the coaxial cable is pushed into the slit. A ground contact formed of a conductive material, comprising: an external conductor connection portion that can be connected; (c) the signal contact and the ground contact A base insulator which is disposed such that the center conductor connection portion and the outer conductor connection portion are close to each other, and the center conductor and the drain wire of the coaxial cable can be pushed into the slit through an opening thereof so as to be held and fixed. D) crimping the drain wire of the coaxial cable, folding the drain wire back at the end of the outer sheath, connecting the drain wire crimp portion arranged along the outer sheath, and the drain wire crimp portion; A cable fixing portion that holds the external coating from the periphery thereof and is held and fixed to the coaxial cable, and extends so as to be connected to the drain wire crimping portion, and a central conductor of the coaxial cable is a central conductor connecting portion of the signal contact. When it is pushed into the slit, it is pushed into the slit of the external conductor connection A drain connection member formed of a conductive material, comprising: (e) coupling to the base insulator to cover a connection portion between the coaxial cable and the signal contact and the ground contact and a periphery thereof; Protective cover insulator

In the cover insulator, a terminal portion of the coaxial cable to which the drain wire connecting member is held and fixed, and a center conductor portion and a ground connecting portion of the drain wire connecting member are held and fixed to the base insulator. The center conductor connecting portion slit of the signal contact and the external conductor connecting portion slit of the ground contact are arranged and held at a position corresponding to the slit, and the base conductor is connected to the base insulator, and the central conductor of the coaxial cable is connected to the signal. It has a configuration in which the connection is made by pushing the central conductor connection portion of the contact into the slit, and the ground connection portion of the drain line connection member is pushed into the external conductor connection portion slit of the ground contact.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In one embodiment of the present invention, a Y-shaped slit is formed in a signal contact at a center conductor connecting portion so as to open toward the front end side, and a ground contact is also formed. A Y-shaped slit is formed in the outer conductor connecting portion, which is open at the tip of the outer conductor connecting portion. The signal contact and the ground contact are connected to the base insulator by the center conductor connecting portion and the outer conductor connecting portion. The central conductor and the drain wire of the coaxial cable are disposed close to and in the slit so that the center conductor and the drain wire of the coaxial cable can be pushed in from the opening portion, and are held and fixed. Crimping connection, this drain wire is folded back at the end of the outer sheath, and the drain wire crimp is arranged along this outer sheath A cable fixing portion connected to the drain wire crimping portion, holding the outer coating from the periphery thereof and holding and fixing to the coaxial cable, and extending along the drain wire crimping portion to extend the center conductor of the coaxial cable. And a ground connection part which is pushed into the slit of the external conductor connection part of the ground contact when connected to the slit of the center conductor connection part of the signal contact, and is formed of a conductive material. Attach the drain wire connecting member, connect the coaxial cable with the drain wire connecting member by pushing the center conductor into the center conductor connecting portion slit of the signal contact, and connect the ground connecting portion of the drain wire connecting member to the ground. Push the cable into the external conductor connection slit of the contact and connect it. The cover insulator to cover the tact connecting portion and the periphery thereof, configured to be coupled with the base insulator has a structure.

With such a configuration and structure,
Even if the drain wire is not a single wire but a stranded wire, especially a stranded wire without tin overcoat, with the same structure, securely press-connect to the drain wire crimping part of the drain wire connecting member made of conductive material. And the ground connection part of the drain wire connection member can be securely connected without being deformed even if it is pushed into the external conductor connection part slit of the ground contact, so that a stable connection between the drain wire and the ground contact is provided. It is possible to reduce the connection, assembly cost, etc., because there is no need to solder the connection or to make the stranded drain line into a single wire with solder, and it is not necessary to rely on a soldering technician. .

The cover insulator has a terminal portion of the coaxial cable with the drain wire connecting member, a center conductor portion, and a ground connection portion of the drain wire connection member, and a center conductor connection portion slit of the signal contact and a ground contact portion of the ground contact. The central conductor is pushed into the central conductor connecting portion slit by arranging and holding the cover insulator at a position corresponding to the external conductor connecting portion slit and coupling the cover insulator with the base insulator, and the ground connecting portion of the drain wire connecting member is formed. With the structure pushed into the outer conductor connection portion slit, the connection work between the cable and the contact can be further facilitated.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 (a) to 1 (c) show an embodiment of the present invention. FIG. 1 is an external perspective view of an assembled state including a mating connector, a perspective view of a fitted state where a contact portion is extracted, and a contact fitted state. And a perspective view of a cable connection state,
FIG. 2 is an exploded perspective view of the embodiment shown in FIG. 1, and FIG.
FIGS. 2C to 2C are perspective views showing a procedure for attaching the drain wire connecting member of the embodiment shown in FIG. 1 to a coaxial cable.

This embodiment is different from the conventional coaxial cable connector 100x shown in FIGS. 4A to 4C and 5 in that a drain line connecting member 160 is newly provided and a cover is provided. The difference is that the insulator 120x is changed to the cover insulator 120, and details thereof are as follows.

First, the drain line connecting member 160 is
As shown in (a) to (c), the drain wire 531 of the coaxial cable 500 is crimp-connected, and the drain wire 531 is folded back at the end of the outer coating 540 to form the outer coating 540.
And a drain wire crimping portion 161 arranged along the drain wire crimping portion 161 to form an outer cover 540.
A cable fixing portion 162 that is held and fixed to the coaxial cable 500 by sandwiching the
When the center conductor 510 of the coaxial cable 500 extends into the slit of the central conductor connection portion 143 of the signal contact 140 and extends into the slit of the external conductor connection portion 153 of the ground contact 150, the central conductor 510 is connected to the slit. And a ground connection portion 163 which is formed integrally with a conductive material such as a metal plate.

The drain line connecting member 160 is
After being manufactured by connecting a large number of pieces using a metal plate or the like by the connection holding section 170, as shown in FIG.
Are cut off at the time of attachment to the coaxial cable 500, or are separated one by one directly from the connection holding portion 170 in a connected state.

A conventional cover insulator (120x) directly connects the terminal portion of the coaxial cable 500 to the center conductor 510 thereof (including the inner coating 520).
And the drain line 531 is connected to the base insulator 110
Center conductor connection portion 143 of signal contact 140 held and fixed to slit and ground contact 15
(120) of the present invention, while being arranged and held at a position corresponding to the slit 153 of the external conductor connection portion 153 of the present invention.
The terminal portion of the coaxial cable 500 to which the drain wire connecting member 160 is held and fixed is connected to the central conductor 510 (including the inner coating 520) and the drain wire connecting member 1
60 are connected to the signal contacts 140 fixed to the base insulator 110.
The central conductor 510 is held by holding the cover insulator 120 and the base insulator 110 so as to be arranged at a portion corresponding to the center conductor connection portion 143 slit and the outer conductor connection portion 153 slit of the ground contact 150. It is pushed into the slit of the center conductor connection portion 143 and connected thereto, and the ground connection portion 1
63 is pressed into the slit of the external conductor connection portion 153 and connected thereto.

In this embodiment, a drain wire 531 is crimp-connected to a drain wire crimping portion 161 of a drain wire connecting member 160 integrally formed of a conductive material such as a metal plate (see FIG. 3B). Wire 531 is externally covered 54
0, the outer wire 540 is folded along the outer wire 540, the outer wire 540 is sandwiched by the cable fixing portion 162, and the drain wire connecting member 160 is attached to the coaxial cable 500. The terminal portion of the coaxial cable with the wire connecting member 160 is accommodated and held in the cover insulator 120, and the cover insulator 120 is coupled to the base insulator 110. By this coupling, the center conductor 510 is pushed into the slit of the center conductor connecting portion 143 of the signal contact 140 and is sandwiched and connected thereto, and the ground connecting portion 163 of the drain line connecting member 160 is connected to the ground contact 150. It is pushed into the slit of the external conductor connection part 153, is sandwiched by this, and is connected.

Therefore, even if the drain wire 531 of the coaxial cable 500 is not a single wire but a stranded wire, especially a stranded wire without a tin overcoat, the drain wire crimping portion 161 of the drain wire connecting member 160 has the same structure. The ground connection portion 163 can be securely and stably held by being inserted into the slit of the external conductor connection portion 153 of the ground contact 150 without being deformed. Because it is connected in a stable state, without depending on soldering technicians,
The coaxial cable 500 and the ground contact 150 can be reliably and stably connected. Also,
This coaxial cable connector 1 of the coaxial cable 500
The work of attaching the connector to the connector 00, the work of assembling the coaxial cable connector 100, and the work of assembling the coaxial cable connector 100 are simple and easy, and the cost can be reduced.

In this embodiment, the drain line 531
Is folded back at the end of the outer covering 540, so that the dimension between the outer covering 540 and the end of the outer conductor 530 and the center conductor connecting portion 143, that is, the center conductor 51
The length of the portion where 0 is not covered by the outer conductor 530 can be reduced, and the transmission characteristics of high-speed signals can be kept good.

In this embodiment, the drain wire connecting member 16
The end portion of the coaxial cable 500 with a zero is held by the cover insulator 120 at one end, and the cover insulator 120 is coupled to the base insulator 110, so that the center conductor 510 and the drain wire connecting member 1
60 is connected to the signal contact 140 and the ground contact 150,
The terminal portion of the coaxial cable 500 is directly connected with the center conductor 510 by pushing the center conductor 510 into the slit of the center conductor connection portion 143 of the signal contact 140, and the ground connection portion 163 of the drain wire connection member 160 is connected to the external conductor of the ground contact 150. The cover insulator 120 may be connected to the base insulator 110 after being pushed into the slit of the connection portion 153 and connected.

[0026]

As described above, according to the present invention, a drain wire connecting member integrally formed of a conductive material and having a drain wire crimping portion, a cable fixing portion, and a ground connecting portion is provided.
The drain wire of the coaxial cable terminal is crimped to the drain wire crimping portion, this drain wire is folded back at the end of the outer coating of the coaxial cable, and fixed to the coaxial cable at the cable fixing portion,
The coaxial cable terminal portion with the drain wire connection member is connected by pushing its center conductor into the center conductor connection portion slit of the signal contact, and the ground connection portion of the drain wire connection member is pushed into the external conductor connection portion slit of the ground contact. By the configuration and structure of the connection, the drain wire is a single wire, of course, a stranded wire, especially a stranded wire without a tin overcoat,
With the same structure, it is possible to securely and stably crimp-connect to the drain wire crimping part of the drain wire connecting member,
In addition, since the ground connection portion of the drain wire connection member made of a conductive material is not deformed even if it is pushed into the external conductor connection portion slit, it can be reliably and stably connected, and can be connected to the connection portion. There is no need for soldering and no need to rely on soldering technicians,
There is an effect that connection, assembling cost, etc. can be reduced, and also, by covering and holding the coaxial cable terminal with the drain wire connecting member in the cover insulator and coupling this cover insulator with the base insulator, The configuration and structure of the connection between the coaxial cable and the contact have the effect of making the connection and connection of the coaxial cable simpler and easier, and further reduce the size of the outer conductor cutout portion. There is also an effect that good transmission characteristics of high-speed signals can be maintained.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, including a mating partner.
FIG. 3 is an external perspective view of an assembled state, a perspective view of a fitted state where a contact portion is extracted, and a perspective view of a contact fitted state and a cable connected state.

FIG. 2 is an exploded perspective view of the embodiment shown in FIG.

FIG. 3 is a perspective view showing a procedure for attaching the drain wire connecting member of the embodiment shown in FIG. 1 to a coaxial cable.

FIG. 4 shows an example of a conventional coaxial cable connector.
FIG. 3 is an external perspective view of an assembled state including a mating partner, a perspective view of a fitted state where a contact portion is extracted, and a perspective view of a contact fitted state and a cable connected state.

FIG. 5 is an exploded perspective view of the coaxial cable connector shown in FIG. 4;

[Explanation of symbols]

 100, 100x Coaxial cable connector 110 Base insulator 120, 120x Cover insulator 130 Shell 140 Signal contact 143 Center conductor connection 150 Ground contact 153 External conductor connection 160 Drain wire connection member 161 Drain wire crimping portion 162 Cable fixing portion 163 Ground connection Part 500 coaxial cable 510 center conductor 520 inner covering 530 outer conductor 531 drain wire 540 outer covering

Claims (2)

[Claims] 1. A coaxial cable connector to be attached to a terminal portion of a coaxial cable including a drain wire as one of the external conductors, the connector having the following configuration. (A) A signal / contact connection portion that is in contact with the signal / contact electrode portion on the connection partner side, and a Y-shaped slit that is connected to the signal / contact connection portion and extends and opens at the tip end side is formed. A central conductor connecting portion into which the central conductor of the coaxial cable is pushed into and connected to the lever slit; a signal contact formed of a conductive material; and (b) a contact connection with a ground / contact electrode portion of a connection partner. And a Y-shaped slit which extends to and connects to the ground / contact connecting portion and extends to the distal end side, and the drain wire of the coaxial cable is pushed into the slit. A ground contact formed of a conductive material, comprising: an external conductor connection portion that can be connected; (c) the signal contact and the ground contact A base insulator which is disposed such that the center conductor connection portion and the outer conductor connection portion are close to each other, and the center conductor and the drain wire of the coaxial cable can be pushed into the slit through an opening thereof so as to be held and fixed. D) crimping the drain wire of the coaxial cable, folding the drain wire back at the end of the outer sheath, connecting the drain wire crimp portion arranged along the outer sheath, and the drain wire crimp portion; A cable fixing portion that holds the external coating from the periphery thereof and is held and fixed to the coaxial cable, and extends so as to be connected to the drain wire crimping portion, and a central conductor of the coaxial cable is a central conductor connecting portion of the signal contact. When it is pushed into the slit, it is pushed into the slit of the external conductor connection A drain connection member formed of a conductive material, comprising: (e) coupling to the base insulator to cover a connection portion between the coaxial cable and the signal contact and the ground contact and a periphery thereof; Protective cover insulator 2. The cover insulator holds a terminal portion of the coaxial cable to which the drain wire connecting member is held and fixed, and a center conductor portion of the coaxial cable and a ground connecting portion of the drain wire connecting member to the base insulator. The center conductor connecting portion slit of the signal contact and the external conductor connecting portion slit of the ground contact are arranged and held at a position corresponding to the slit, and the base conductor is connected to the base insulator, and the central conductor of the coaxial cable is connected to the signal. 2. A structure in which a connection is made by pushing into a central conductor connection portion slit of a contact, and a ground connection portion of the drain wire connection member is pushed into an external conductor connection portion slit of the ground contact.
The coaxial cable connector as described.