JPH0322868Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an L-shaped coaxial connector used for connecting coaxial transmission lines for mobile radio and the like.

"Prior art and its problems" As shown in FIGS. 3 and 4, conventional L-type coaxial connectors include a connector body outer conductor 3 that holds and fixes a center conductor 1 via an insulator 2, and A cable attachment part outer conductor 6 holds and fixes the center conductor 4 which is welded to form an L shape in the recess of the conductor 3 via a cable insulator 5, and a cable attachment part outer conductor 6 is connected to the cable attachment part outer conductor 6 via a braid 7. A tightening ferrule 8 and a plurality of grooves 9 connected to the lower end of the connector main body outer conductor 3 by crimping.
A connector has been known that includes an opening part 10 provided with an opening part 10 and a blind cover 11 screwed onto the upper end of the outer conductor 3 of the connector main body.

However, in the above-mentioned conventional connector, since the connector main body is machined using a lathe, the mating connector cannot be tightly fitted as it is. 10 had to be fitted with a ring 12 that imparts spring properties. Moreover, in order to make the connector main body L-shaped and install the cable at right angles to the shaft, the cable mounting part outer conductor 6, which is the basis for crimping, must be brazed or screwed to the main body. Since it had to be attached, there was a problem in that the number of manufacturing steps was increased and the manufacturing cost was high.

Further, the conventional L-type coaxial connector has a structure with many steps in the body, and therefore has the disadvantage that impedance matching is difficult to achieve.

This idea is an attempt to solve these problems, and it is not only cheap and easy to manufacture, but also makes and connects with a mating connector without the need for special parts, and can ensure impedance accurately. The purpose is to provide an L-type coaxial connector.

``Means for Solving the Problems'' The structure of this invention, which meets the above objectives, is to cut springy plates into both sides of a rectangular fuselage section in the form of continuous long wing sections. The body part is bent into a cylindrical shape to serve as the outer conductor of the main body, and the two wing parts are each bent into a semi-cylindrical shape, and these two semi-cylindrical parts are combined to form a cylindrical cable attachment part outer conductor, and the inner periphery of the body part The main feature is that a protrusion is formed on the surface to fit into a mating connector.

"Embodiments" Next, preferred embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 2, the L-type coaxial connector of the present invention is made by cutting out a springy plate into a kite-like shape, pressing the body into a cylindrical shape, and forming the outer conductor 23 of the main body. Both wing parts of the kite-shaped plate are pressed into a semi-cylindrical shape, and these semi-cylindrical parts 26
a, 26b are combined, and a ring 36 is fitted to form the cable attachment portion outer conductor 26, as shown in FIG.

The main body external conductor 23 has, as shown in FIG.
A center conductor 21 is fixed via an insulator 22. A ring-shaped protrusion 30 is formed on the inner peripheral surface of the lower end of the main body external conductor 23. In this embodiment, the protrusion 30 and the groove 29
This allows it to come into elastic contact with the mating connector. In this case, the groove 29 is not necessarily necessary. A blind lid 31 is fitted and fixed to the upper end opening of the main body external conductor 23 . A locking piece 32 bent outward is connected to the lower end of the blind lid 31.
The locking piece 32 is connected to the through hole 33 of the main body outer conductor 23.
It is inserted and fixed into.

Next, a method of wiring using the above-mentioned L-type coaxial cable will be explained.

As shown in FIG. 1, a snugly fitting sleeve 34 is fitted within the semi-cylindrical mating portion of the cable attachment outer conductor 26. Next, after loosening the braid of the coaxial cable, the insulator 2 containing the center conductor 24 is removed.
Fit 5. The tip of the center conductor 24 is connected to the main body center conductor 21 by soldering or the like, and a coaxial cable braid 27 is coated on the outside of the cable attachment portion outer conductor 26, and a ferrule 2 is placed on top of the coaxial cable braid 27.
Complete the wiring work by caulking 8.

"Effects of the invention" As described above, according to the invention, the outer conductor of the main body, the outer conductor of the cable attachment part, and the mating spring part connected to the mating connector are integrally press-formed in one plate. Therefore, the L-type coaxial connector can be manufactured very easily and at low cost, and since the protrusion is formed on the cylindrical body made of a material with spring properties, it can be easily manufactured by the other party. It can be properly mated with the connector, and since there is no step in the outer conductor of the main body, the impedance can be ensured accurately, which is a remarkable effect that has not been seen in conventional L-type coaxial connectors of this kind. play.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention;
The figure is a perspective view for explaining the manufacturing of the L-type coaxial connector of the present invention, FIG. 3 is a sectional view of a conventional L-type coaxial connector, and FIG. 4 is a partially cutaway view of a conventional L-type coaxial connector. FIG. In the figure, 21... Main body center conductor, 22... Insulator, 23... Main body outer conductor, 24... Center conductor,
25...Insulator, 26a, 26b...Semi-cylindrical part,
26...Cable attachment part outer conductor.

Claims (1)

[Scope of utility model registration request] A plate with spring properties is cut into a shape in which long wing parts are connected to each other on both sides of a rectangular body part, and the body part is bent into a cylindrical shape to serve as an external conductor of the main body. L characterized in that it is bent into a semi-cylindrical shape, and the two semi-cylindrical parts are combined to form a cylindrical cable attachment part outer conductor, and a projection part to be fitted into a mating connector is formed on the inner peripheral surface of the body part.
type coaxial connector.