JP2559454Y2 - Coaxial connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency coaxial connector used for mobile communication equipment.

[0002]

2. Description of the Related Art Conventionally, this type of coaxial connector has a center conductor 2 of a coaxial connector as shown in FIGS.
Both the first and second outer conductors 22 and 25 were connected as follows. That is, one inner connector is internally connected to the other outer connector, and the included connector and the outer connector are pressed by a vertical spring pressure to obtain electrical contact. In the drawings, reference numerals 23 and 26 denote insulators, which are provided between the outer conductor and the center conductor.

[0003]

However, in the above-mentioned conventional coaxial connector, when the connectors are connected, one of the included connectors is inserted into the other outer connector while pushing and expanding the insertion portion of the other outer connector. . Therefore, when a strong impact force is involved in the connection, the ends of the two connectors may collide with each other, and the spring may be damaged. The present invention has been made in view of the above problems, and has as its object to provide a coaxial connector having a structure that does not cause damage to the connector even when the connection is performed with an impact force.

[0004]

According to the present invention, in order to achieve the above object, a center conductor having a leading end protruding toward the coupling end is provided on an outer periphery of the center conductor in contact with an external conductor via an insulator. A movable conductor shell biased by the first spring body in the coupling direction, and a movable conductor shell biased by the first spring body toward the coupling end .
A first connector having a bi- spring body, and a tip facing the coupling end so as to be able to contact the center conductor,
A contact terminal urged toward the coupling end by the third spring body,
A second connector provided opposite to the first connector having a conductor shell provided on an outer periphery of the contact terminal via an insulating seat and in contact with the movable conductor shell;
A recess at the center of the tip of the center conductor of the first connector.
There is a configuration that has been completed . Preferably, the first connector has a configuration in which a concave-convex portion is formed on the side surface of the coupling end of the movable conductor shell.

[0005]

In the coaxial connector of the present invention having the above-described configuration, when the coupling ends of the first connector and the second connector are brought into contact with each other, the center conductor comes into contact with the contact terminal, and the contact terminal resists the spring body. The center conductor is inserted into the second connector by pressing while pressing. The outer conductor contacts the conductor shell via the movable conductor shell. Furthermore, a concave portion at the center of the tip of the center conductor, and a side of the coupling end of the movable conductor shell
Electrical contact is reliably made at the concave and convex portions.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing a state where the first connector and the second connector are not connected. In the present embodiment, reference numeral 16 denotes a first connector mounted on the wireless device side, and 17 denotes a second connector mounted on the adapter side, wherein the center conductor 8 of the first connector 16 is connected to the second connector. 17, the second connector 17
The first and second connectors 16 and 17 are coupled to each other by a coupling lock mechanism (not shown) provided in the first and second connectors.

The first connector 16 has a first holding plate 1 and
The shell 6 is located at an intermediate portion of the connector 16, and the center conductor 8 is fixed by the insulating seat 7 inside thereof and has a tip portion protruding outward, the outer conductor 3 on the outer periphery, and the inner connecting end side surface . It has the movable conductor shell 4 installed, the first coil spring 5 wound around the outer periphery of the shell 6, and the like. The coupling-side end of the movable conductor shell 4 has an uneven surface, and a first connector 16 is provided between the first holding plate 1 and the outer conductor 3 outside the movable conductor shell 4.
Is provided in the coupling direction. Further, as shown in FIGS. 3A and 3B, a recess 8a is formed at the center of the tip of the center conductor 8.

On the other hand, on the second connector 17 side, the second holding plate 2, the third coil spring 12 for urging the contact terminal 11 in the direction of the coupling end, and the insulation between the conductor shell 10 and the contact terminal 11 are insulated. Plate 13, outer conductor 19 and contact terminal 11
And a movable female terminal 15 that contacts the rear part of the contact terminal 11. As described above, the second connector 17 includes the inner contact terminal 11 that is in contact with the center conductor 8 and the movable conductor shell 4 on the outer side.
And a conductor shell 10 that comes into contact therewith.

The first connector 16 and the second connector 17
Are performed as shown in FIG. That is, the protruding center conductor 8 is connected to the contact terminal 1 in the second connector 17.
1 acts against the third coil spring 12 so as to push it inward, and the ends of the movable conductor shell 4 come into contact with the ends of the conductor shells 10 facing each other so that the movable conductor shell 4 Is pushed into the first connector 16 and the first coil spring 5 is connected in a contracted state. In this case, the second coil spring 9 is further contracted, and the first connector 16 itself is pressed toward the first holding plate 1 and moves. As described above, when the first connector 16 and the second connector 17 are connected, the center conductor 8 is connected to the center conductor 8 by the action of the urging forces of the first coil spring 5, the second coil spring 9, and the third coil spring 12. The contact with the contact terminal 11 is reliably obtained, and the movable coil 4 and the conductor shell 10 are fixed by the second coil spring 9 regardless of the variation in the distance between the first holding plate 1 and the second holding plate 2.
Is established, electrical contact is obtained between the outer conductor 3 and the conductor shell 10 via the movable conductor shell 4 and between the center conductor 8 and the contact terminal 11, and these contacts are extremely stable. Become.

[0010] In addition, by reducing the impact force due to the expansion and contraction of the first, second and third coil springs 5, 9 and 12, it is possible to prevent the connector from being damaged by the impact at the time of coupling.

Further, since the first and second connectors 16 and 17 approach each other due to the contraction of the second coil spring 9, the protruding end 18 of the movable conductor shell 4 can be lengthened. Therefore, the contact portion 20 between the outer conductor 3 and the movable conductor shell 4 can be made longer, and contact instability is eliminated. In addition, it is possible to shorten the axial dimension of the connector itself as a whole.

[0012]

As described above, according to the present invention, both the center conductor and the outer conductor can be securely connected by the pressing force in the axial direction. Further, the present invention can be applied to a holding plate provided with a coil spring on the outer periphery of one connector. By being mounted movably, the connector is prevented from being damaged due to the impact at the time of connection. Also,
Since the concave portion is provided at the center of the tip of the center conductor and the uneven portion is provided on the side surface of the coupling end of the external conductor, there is an effect that even if dust or the like adheres, electrical contact can be obtained in a stable state. In addition, there is an effect that the axial dimension of the connector itself can be shortened as a whole and the connector can be downsized.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state where a first connector and a second connector are not connected.

FIG. 2 is a cross-sectional view showing a state where a first connector and a second connector are connected.

FIGS. 3A and 3B are diagrams showing a tip portion of a center conductor, wherein FIG. 3A is an enlarged side view thereof, and FIG. 3B is an enlarged front view thereof.

FIG. 4 is a diagram showing a structural example of one side of a conventional coaxial connector.

FIG. 5 is a diagram showing an example of the structure of the other side of the conventional coaxial connector.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 1st holding plate 2 2nd holding plate 3 outer conductor 4 movable conductor shell 5, 9, 12 spring coil 6 shell 7, 13, 14 insulator (seat) 8 center conductor 10 conductor shell 11 contact terminal 15 female terminal 16th One connector 17 Second connector

Claims (2)

(57) [Scope of request for utility model registration] 1. A center conductor having a distal end projecting toward a coupling end, and an outer conductor provided on an outer periphery of the central conductor in contact with an external conductor via an insulator, and urged in a coupling direction by a first spring body . A first connector having a movable conductor shell and a second spring body for urging the connector body toward the coupling end ; and a third end facing the coupling end so as to be able to contact the center conductor . A contact terminal urged in the direction of the coupling end by a spring body, and provided opposite to the first connector having a conductor shell provided on an outer periphery of the contact terminal via an insulating seat and in contact with the movable conductor shell. It was composed of a second connector, a recess at the tip center of the center conductor of the first connector
A coaxial connector characterized in that: 2. The coaxial connector according to claim 1, wherein an uneven portion is formed on a side surface of the coupling end of the movable conductor shell of the first connector.