JPH0418231Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a coaxial U-link connector used in communication devices and the like. In particular, the structure in which the conductor portion of the coaxial U-link connector is housed and held in a box-shaped insulator and a plate-shaped insulator that is engaged with the box-shaped insulator is intended to reduce the size and improve reliability.

[Conventional technology]

Conventionally, this type of coaxial U-link connector has screw holes on both sides of the open end direction rear part of the outer conductor of the conductor part of the U-shaped coaxial connector, and screw holes are provided on the bottom surface of the box-shaped insulator recess. Provide a through hole opposite this screw hole. The conductor portion and the insulator were fastened together with screws. Third
Figure a is a longitudinal sectional view of a conventional coaxial U-link connector. In FIG. 3a, the connecting external conductors 23 and 24 are connected to the open-end external conductors 21 and 22 by brazing or the like, and the connecting external conductors 23 and 24 are soldered in the soldering groove 25 to provide an electrical connection. and mechanically connected.

Dielectric insulators 26 and 27 are connected to the open-ended center conductor 2
8 and 29, respectively, and are fixed to the open-end external conductors 21 and 22 by caulking, respectively.

Connecting center conductor 32 held by dielectric insulators 39 and 40 connects open-end center conductors 28 and 29
They are soldered to each other at soldering portions 33 and 34 to be electrically and mechanically connected to each other.

The open end outer conductors 21 and 22 have male threads 35.
and 36 are provided, and the soldering operation described above is performed through this female threaded hole 38.

After each conductor is connected and the coaxial part is assembled,
Insulator 17 was fixed to this coaxial portion by male screws 35 and 36.

[Problem that the invention attempts to solve]

However, in the conventional structure described above, the center conductor is soldered by inserting a soldering iron into the female threaded hole. Therefore, if the connector is miniaturized, the diameter of the female threaded hole becomes smaller, making it difficult to work with soldering and checking the soldering, resulting in problems with the reliability of soldering. Furthermore, when the conductor portion and the insulator are tightened and fixed with screws, burrs are likely to form on the threaded portions as the screws are tightened and removed, and these burrs can cause short circuits between the center conductor and the outer conductor, and deterioration of electrical characteristics. As a countermeasure to this problem, a special thread processing method was required. Furthermore, when a coaxial U-link connector is mounted on a device, the screw heads are visible from the front of the insulator, which is unfavorable in terms of appearance.

An object of the present invention is to eliminate these problems and provide a coaxial U-link connector having a structure in which the coaxial portion can be housed and held within an insulator without using screws.

[Means for solving problems]

The present invention is a coaxial U-link connector having a structure in which both open ends are fitted into other connectors, which includes: a rectangular parallelepiped box-shaped insulator that accommodates a coaxial portion bent in a U-shape and has one side open; It is characterized by comprising a plate-shaped insulator which is provided with two holes through which both of the open ends are inserted, and which is locked to the inner surface of the opening of the box-shaped insulator.

The U-shaped coaxial portion has an outer conductor that includes two open-ended outer conductors and two connecting outer conductors that connect the two open-ended outer conductors, and a center conductor that has two open-ended outer conductors. It preferably includes an end center conductor and one connecting center conductor for connecting the two open end center conductors, and the open end outer conductor preferably includes a connecting center conductor for soldering the connecting center conductor to the open end center conductor. Preferably, it includes a hole and a shield ring that closes the hole.

[Effect]

A rectangular parallelepiped box-shaped insulator is placed over the U-shaped coaxial part from the outside, and both open ends are inserted into the two holes of the plate-shaped insulator and pressed firmly to form this plate-shaped insulator. is secured to the inner surface of the opening of the box-shaped insulator. This structure eliminates the need for screws,
Miniaturization and high reliability can be achieved.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIGS. 1 and 2 are structural and assembly diagrams showing an embodiment of the present invention. In FIG. 1a, connecting outer conductors 3 and 4 are connected to open-ended outer conductors 1 and 2, respectively, by brazing. In FIG. 1a, the lower portions of each of the open-ended external conductors 1 and 2 show open ends for connection with other connectors not shown.

Further, the connecting external conductors 3 and 4 are soldered to each other in the soldering groove 5 and are electrically and mechanically connected. Dielectric insulators 6 and 7 hold open-ended central conductors 8 and 9, respectively, and are secured to open-ended outer conductors 1 and 2 by caulking, respectively. The connecting central conductor 12 is soldered to the open-end central conductors 8 and 9 at soldering portions 13 and 14, respectively, and is electrically and mechanically connected.

Here, the feature of the present invention is that each conductor is provided with a box-shaped insulator 17 and a plate-shaped insulator 18 that cover the assembled coaxial part bent in a U-shape,
The plate-shaped insulator 18 has two holes 18B and 18c.
The open-end external conductors 1 and 2 are inserted into the box-shaped insulator 17, and the shape is such that the open-end outer conductors 1 and 2 are inserted into the box-shaped insulator 17.

That is, in FIG. 1b showing a cross section taken along the line A-A' shown in FIG. The plate-shaped insulator 18 is provided with a protruding hook portion 1 that engages with the groove 17A.
8A, and holes 18B and 18C into which the open ends of the open-end external conductors 1 and 2 are inserted, respectively.

On the other hand, on the opposite side of the open ends of the open end outer conductors 1 and 2, open end center conductors 8 and 9 are provided.
Holes 15 and 16 for soldering are provided in the soldering portions 13 and 14 of the connecting center conductor 12, respectively, and shield rings 19 and 20 are attached after soldering.

The soldering work between the open-end center conductor and the connection center conductor in the soldering parts 13 and 14 is performed using holes 15 and 16 for the soldering work of the open-end outer conductors 1 and 2 on the axial extension of the connection center conductor 12. Insert the soldering iron. After the center conductor soldering work is completed, shield rings 19 and 20 are installed in these holes.

On the other hand, a concave groove 1 is formed on the inner surface of the box-shaped insulator 17.
7A, and a convex hook portion 18A is provided on the side surface of the plate-shaped insulator 18.

FIG. 2 is an explanatory diagram of assembly in which the coaxial portion is accommodated and held in the insulator 17. The coaxial part is arranged inside the box-shaped insulator 17, and the hole 18B of the plate-shaped insulator 18 is
and 18C, insert the open-end external conductors 1 and 2 from the open-end side. As a result, the groove 17A of the insulator 17 and the hook portion 18A of the insulator 18 fit together, and the coaxial portion is sandwiched between the insulator 17 and the insulator 18 to accommodate and hold it.

In this embodiment, the open-end external conductor is of a male type, but it can be similarly implemented with a female type.

The structure of the coaxial U-link connector according to the present invention is not limited to the above embodiment.

[Effect of idea]

As described above, according to the present invention, it is possible to simplify the assembly of the connector, and also to reduce the size of the coaxial U-link connector. Furthermore, the soldering work of the center conductor and the confirmation of the soldering become easier, resulting in higher reliability. Furthermore, there is no burr generation caused by tightening the screws.

Furthermore, since the screw heads of the coaxial U-link connectors are not visible from the front of the device when the device is mounted, the appearance of the device is improved.

[Brief explanation of drawings]

Fig. 1 is a structural diagram of an embodiment of the present invention, Fig. 1a is a longitudinal sectional view, and Fig. 1b is a symbol A-
A sectional view as viewed from A′, and FIG. 1c is a plan view. FIG. 2 is an explanatory diagram of the assembly of the above embodiment, in which FIG. 2a is a view seen from the longitudinal side, and FIG. 2b is a view seen from the side. Figure 3 is a structural diagram of the conventional example, Figure 3a is a vertical cross-sectional view, Figure 3b
is a plan view. 1, 2, 21, 22...open end external conductor, 3,
4, 23, 24...external conductor for connection, 5, 25...
...Soldering groove, 6, 7, 26, 27, 39, 4
0... Dielectric insulator, 8, 9, 28, 29... Open end center conductor, 12, 32... Connection center conductor, 1
3, 14, 33, 34...Soldering part, 15, 1
6... Hole for soldering work, 17, 37... Box-shaped insulator, 17A... Groove, 18... Plate-shaped insulator, 18A... Hook portion, 18B, 18C...
Hole, 19, 20... Shield ring, 35, 36
...Male thread, 38...Female thread hole.

Claims (1)

[Claims for Utility Model Registration] (1) In a coaxial U-link connector with a structure in which both open ends fit into other connectors, a rectangular parallelepiped-shaped connector that accommodates a coaxial portion bent in a U-shape and has one side open. It is characterized by comprising a box-shaped insulator 17 and a plate-shaped insulator 18 that is provided with two holes through which both of the open ends are inserted and is locked to the inner surface of the opening of the box-shaped insulator. Coaxial U-link connector. (2) The U-shaped coaxial portion has an outer conductor that includes two open-end outer conductors and two connecting outer conductors that connect the two open-end outer conductors, and a center conductor that is A coaxial U-link connector according to claim 1, which includes two open-end center conductors and one connecting center conductor that connects the two open-end center conductors. (3) The open-end outer conductor includes a hole for soldering the connection center conductor to the open-end center conductor, and a shield ring to close this hole as described in claim (2) of the utility model registration. Coaxial U-link connector.