JPH0613082U - Structure of aslug in plug-in type audio connector - Google Patents

Abstract

(57) [Abstract] [Purpose] With a simple structure, the shielded wire of a coaxial cable connected to a connector is used as an slug, and this slug is connected to the terminal on the connector side surely and quickly, so to speak. Develop a plug-in type audio connector that can be connected by using the. An insulator having a male or female connector member embedded therein is housed inside a metal shell, and a coaxial cable introduced from the rear of the metal shell into the connector member at the rear end side of the insulator. -Bulls, etc.-
In the plug-in type audio connector formed so that the lead wire is connected to the rear surface side of the insulator where the tip of the fixing screw for fixing the insulator to the metal shell is located. A recess is formed to expose the tip of the screw, an aer slug is fixed to the exposed tip of the screw, and a sheath of a three-core cord is attached to the slug.
A ground wire or the like is connected to the ground wire.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a plug-in type audio connector, more specifically, a connection structure with a shielded wire of a coaxial cable connected to an slug, and a connector member short-circuited to the slug. And the connection structure with the said lug.

[0002]

[Prior art]

 Conventionally, in order to connect a connecting device such as a microphone by a so-called plug-in method to a male or female connector provided on the operation panel of the audio device side, the rear end of the cord of the microphone is connected. A female or male plug type connector having a structure corresponding to the connector is attached.

In such a plug-in type connector on the microphone side, which is connected to the connector on the audio device side, high frequency noise may occur depending on the surrounding devices and the condition of the connector surrounding. Therefore, in order to prevent such noise from occurring, an earth terminal is provided or a connector member is short-circuited to the earth terminal, but the earth terminal is connected to the earth terminal. Since all the work of connecting wires and short-circuiting the connector members is done by soldering, it is troublesome in assembly work, and the quality of soldering tends to vary, which causes troubles.

[0004]

[Problems to be solved by the device]

 In view of the above points, the present invention ensures that the shielded wire of the coaxial cable connected to the connector is connected to the slug and the slug is connected to the connector side terminal with a simple structure. Another object is to develop a plug-type audio connector that has a structure that allows quick and one-touch connection.

[0005]

Means for Solving the Problems The constitution of the present invention made for the purpose of solving the above problems is to accommodate an insulator in which a male or female connector member is embedded inside a metal shell, and A plug-in type audio connector formed so that a lead wire such as a coaxial cable introduced from the rear of a metal shell is connected to the connector member on the rear end side of the insulator. Then, on the rear surface side of the insulator where the tip portion of the fixing screw for fixing the insulator to the metal shell is located, a recessed portion exposing the tip portion of the screw is formed, and at the exposed screw tip. It is characterized in that the ground lug member is fixed and the ground wire such as a shielded cable of the coaxial cable is connected to the lug member.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an example of a plug-in type audio connector having an aslug structure according to the present invention, FIG. 2 is an enlarged plan view of the aslug portion in FIG. 1, and FIG. FIG. 4 is a rear view of the above-mentioned aer slug, and FIG. 4 is a rear view showing an example of a short-circuit structure between the aer slug and the connector member.

In the drawing, reference numeral 1 denotes a taper shape having a slightly thicker outer shape, an inner portion formed into a hollow cylindrical portion 1a, and a cable introduction port 1b formed at the rear end, and It is a metal shell whose tip is formed in the entire opening 1c. In addition, 1d is a latch installation portion formed by notching on the side of the opening 1c of the metal shell 1.

Reference numeral 2 denotes an insulator made of a non-conductive material such as synthetic resin in which three female connector members 3 are embedded. The insulator 2 has a metal outer surface excluding its rear end. Although covered by the barrel 4, the outer shape of the barrel 4 is formed so as to be lightly press-fitted into the cylindrical portion 1c of the metal shell 1. About half of the entire length of the insulator 2 covered with the barrel 4 is inserted into the metal shell 1 and fixed to the shell 1 by the fixing screw 2b, so that the cylindrical portion of the shell 1 is covered. The latter half of 1a is left as a space.

In the connector of FIG. 1, a notched groove 2a for accommodating the latch 5 is provided on the upper surface side of the insulator 2, and the latch spring 5a accommodated in the groove 2a is interposed to engage the latch 2. 5 are provided. Reference numeral 5b is a latch claw, 5c is a latch operating portion, and 4a is a latch hole formed in the barrel 4 at a position corresponding to the cutout groove 2a.

The metal shell 1 is integrally formed with a cable introducing portion 6 having an annular shape on the outside of the cable introducing port 1b. Here, the lower half of the introducing portion 6 is formed. The clamp member 6a forming the side is integrally formed with the metal shell 1 as shown in FIG. Although not shown in the figure, the length of the inner circumference 61a of the clamp member 6a is slightly larger than the half circumference of the inner circumference of the introduction portion 6, that is, more than 180 degrees and 180 degrees. The part that exceeds the degree is raised in a substantially straight line in the tangential direction. Further, an uneven surface 62a is formed in the circumferential direction on the peripheral surface of the inner circumference 61a of the clamp member 6a.

The other member forming the cable introducing portion 6 is formed as a pressing member 6b, which is integrated with the clamp member 6a by tightening a screw (not shown) and communicates with the cable introducing port 1b. The entire inner surface of the cable introducing portion 6 is formed. An inner surface 61b of the pressing member 6b is provided with an uneven surface 62b corresponding to the uneven surface 62a formed on the inner peripheral surface of the clamp member 6a in a relationship of unevenness.

Reference numeral 7 denotes a rubber cable, for example, which is fitted and attached to an opening formed by the cable introducing port 1b, the clamp member 6a forming the cable introducing portion 6 and the pressing member 6b. In a bush, for example, a three-core cord 8 in which each cord 8a is shielded by a shield wire 8b is inserted into the bush 7 and introduced into the metal shell 1. Therefore, the cable introducing port 1b and the cable introducing portion 6 are arranged such that the respective cords of the three-core cord 8 are introduced into the metal shell 1 through the cable bush 7. There is. Reference numeral 9 is a code for noiseless that is introduced into the metal shell 1 in parallel with the above cable 8.

The cords 8a and 9 introduced into the rear space of the metal shell 1 as described above are bound by the cord clamp 8c, and as a result, the clamp 8c is bundled into the cords 8a and 9c. Acts as a stopper to prevent the cable from being removed from the cable bush 7.

The respective cords 8a, the shield wires 8b, and the noiseless cords 9 are connected to respective connection terminals provided in the insulator 2 inside the metal shell 1. In the present invention, the connection mode between the ground lug 10 and the connector member 3 adjacent to the lug 10 which is short-circuited to the lug 10 is devised, and this point will be described below.

As shown in FIGS. 2 and 3, the arslug 10 has a tongue-shaped support piece 10a attached to the fixing screw 2b of the metal shell 1 and the insulator 2. The support piece portion 10a is formed by a crimping and sandwiching portion 10b of an open annular shield wire extended to the rear end side of the support piece portion 10a, and a short-circuit terminal piece 10c serving as a short-circuit terminal with the adjacent connector member 3. Has been.

On the other hand, in order to hold the above-mentioned slug 10 in the screw hole 10d of the supporting piece portion 10a by screwing the fixing screw 2b, the rear end of the insulator 2 and the front end side of the screw 2b are positioned. At the site, the tip side of the screw 2b is exposed, and a concave portion 11 into which the supporting piece portion 10a of the aer slug 10 is fitted and held is formed. As a result, the supporting piece portion 10a is held by the screw 2b in the recessed portion 11, and the asslug in which the crimping and sandwiching portion 10b projects to the rear outside of the insulator 2 is attached to the crimping and sandwiching portion 10b. By clamping the shield wire 8b of the bull 8 by crimping, the connection of the ground wire can be surely and firmly made by a so-called one-touch operation. The shield wire serving as the ground wire may be connected to the crimping and sandwiching portion 10b by soldering.

On the other hand, the short-circuit terminal piece 10c in the earth slug 10 is fitted and held in a concave groove 12 formed between the terminal piece 10c and the rear end side of the crimp terminal 3a of the adjacent connector member 3. The tongue piece 13 is pressed against one end, and the other end of the tongue piece 13 is pressed against the outer peripheral surface of the crimp terminal 3a.

That is, the recessed groove 12 is positioned depending on the position of the short-circuit terminal piece 10c in the ground lug 10 and the rear end outer surface of the crimp terminal 3a of the connector member 3 adjacent to the short-circuit terminal piece 10c, and the shape thereof. The rear surface of the rotor 2 is formed in a substantially arc shape, and the short-circuiting tongue piece 13 formed in a substantially arc shape is lightly press-fitted into the groove 12 by utilizing its spring back force. As a result, both ends of the tongue piece 13 are pressed against the terminal piece 10c and the outer surface of the terminal 3a, and the connector member 3 is short-circuited without being soldered to the aer slug 10.

Each code 8a of the three-core code 8 is connected to each crimp terminal 3a formed on the rear end side of each connector member 3, and the noiseless code 9 is connected to the latch spring 5a. It is connected to the set screw 9b of the noiseless terminal 9a buried from the rear of the insulator 2 in a sandwiched manner. It is optional to solder this connection.

Further, instead of the above-mentioned slug 10, an slug 10 'is formed as shown in FIG. 5, and a concave portion 2c is formed on the outer periphery of the rear part of the insulator 2, and the lug 10' is formed therein. The inner surface of the barrel 4 is clamped by the concave portion 2c of the insulator, and the rear end of the lug 10 'is screwed 10a' or soldered to the shield wire 8b. Good.

[0022]

[Effect of device]

 As described above, the arslug in the audio connector of the present invention is attached and held in the recess formed on the rear surface of the insulator by using the fixing screw of the metal shell and the insulator. The crimping and clamping portion of this slug is crimped and clamped to the ground wire such as a shielded cable such as a coaxial cable. Therefore, the rational installation of the slug and the connection structure of the ground wire are realized. It can be simplified.

Further, a short-circuiting terminal piece is integrally formed on the above-mentioned slug, and a connector member adjacent to this terminal piece is short-circuited by the short-circuiting tongue piece, and the short-circuiting tongue piece is held. Mounting and short-circuit joining are performed by the recessed groove formed on the rear surface of the insulator and the springback force of the substantially arcuate short-circuiting tongue held in this recessed groove, eliminating any soldering work. As a result, the ground wire connection and the short-circuit connection of the connector member to the ground lug can be realized, which can greatly contribute to the simplification and rationalization of the assembly work of this type of connector.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of a plug-in type audio connector having an aslug structure according to the present invention.

FIG. 2 is an enlarged plan view of an slug portion in FIG.

3 is a rear view of the aer slug of FIG.

FIG. 4 is a rear view showing an example of a short-circuit structure between the arslug and the connector member.

FIG. 5 is a side sectional view of another example of the aer slug.

[Explanation of symbols]

 1 Metal shell 2 Insulator 3 Female connector member 4 Barrel 5 Latch 6 Code introduction part 6a Clamp member 6b Holding member 62a Rough surface 62b Rough surface 7 Cable bush 8 3 core code 9 Noiseless code 10 A slug 10a Support piece 10b Crimping and clamping part of shielded wire 10c Shorting terminal piece 11 Recess 12 Groove 13 Shorting tongue

Claims (4)

[Scope of utility model registration request] 1. An insulator in which a male or female connector member is embedded is housed inside a metal shell, and
A plug-in type audio connector formed so that a lead wire such as a coaxial cable introduced from the rear of a metal shell is connected to the connector member on the rear end side of the insulator. Then, a recess for exposing the screw tip portion is formed on the rear surface side of the insulator where the tip portion of the fixing screw for fixing the insulator to the metal shell is located, and the recessed portion for exposing the screw tip portion is formed. -The slug is fixed and the ground wire of a three-core cord is connected to this ground slug, and the ground wire is connected to the ground wire of the plug-in type audio connector. -The structure of the slag. 2. The support lug, which is lightly press-fitted into the recess of the insulator and has a screw hole into which a fixing screw is screwed, and a rear end side of the support support. 2. The structure of the slug in the plug-in type audio connector according to claim 1, further comprising a crimping and clamping portion for integrally crimping and clamping the ground wire. 3. The plug-in type socket according to claim 2, wherein the slug has a projecting short-circuit terminal piece for short-circuit connection with a connector member provided on the insulator.
Structure of the slug in the Dio connector. 4. A connector member and a short-circuit terminal piece for an slug are connected to the rear surface of the insulator between a recessed portion provided on this surface and a connector member adjacent to this recessed portion. By forming a concave groove for holding the short-circuit piece for holding, and by embedding and holding the short-circuit piece in the groove, the left and right ends of the short-circuit piece are pressed into contact with the aer slug and the connector member. The structure of the aslug in the plug-in type audio connector according to claim 3.