JPH0439879A - Shield cap fitting for coaxial connector - Google Patents

Abstract

PURPOSE:To make work highly effective and improve reliability by the tip part of the center conductor of a coaxial cable with the center contact of a connector main body with soldering from the outside of a U-shaped groove, and conducting a shield cap to a caulking receiver. CONSTITUTION:The center conductor 4 of a coaxial cable 2 and the center contact 3 of a connector main body 1 are joined by setting a predetermined dimension from the center conductor 4 of a coaxial cable 2 to a caulking receiver pipe 7, deciding the length of an insulating pipe 11, and passing the center conductor 4 through a center conductor insulating part 9 to be soldered to the center contact 3 of a main body from the U-shaped groove of the insulating pipe 11. Consequently the buckling of the center conductor 4 can be prevented with the insulating pipe 11, even if a shield cap 10 is pushed down after soldering, to keep the caulking position of a shield wire 6 constant. This permits the effective and complete contact of the shield wire 6 and the shield of the coaxial cable 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a method for attaching a shield cap to a coaxial connector of an antenna connector attached to a radio device such as a mobile hot-wire machine or an automatic telephone.

BACKGROUND ART FIGS. 3 and 4 are diagrams for explaining a conventional method of attaching a shield cap to a coaxial connector. In Figure 3, 1 is the connector body and the center conductor 4 of the coaxial cable 2.
A convex portion 5 is provided for press-fitting the center contact 3 and the shield cap 10 for coupling. Reference numeral 6 denotes a shielded wire of a coaxial cable, and as shown in the cross-sectional view of FIG. 4, a caulking vibrator 7 is fitted between the shielded wire and the center conductor insulator. 8 is the outer coating.

Next, the above mounting method will be explained. First, the center conductor 4, center conductor insulator 9, and shield wire 6 are processed to a specified length at the tip of the coaxial cable 2, as shown in FIG.

Next, the shield cap 1o is passed through, the caustic camera vibe 7 is fitted between the shield wire 6 of the coaxial cable 2 and the center conductor insulator 9, and the center conductor 4 is connected to the center contact 3 by soldering.

Next, the shield cap 10 is lowered, and the shield cap 10 is press-fitted into the press-fit convex portion 5 using a press-fit jig and fixed. Furthermore, the shield wire 6 of the coaxial cable 2 and the shield cap 1
Problems to be Solved by the Invention However, in the above-mentioned conventional shield cap mounting method, when lowering the shield cap 10, the crimp receiving pipe 7 does not hold the shield cap 10 in place. When pressed down, the inner diameter of the cap may get caught and come off, or the center conductor 4 and center conductor insulator 9 may buckle, making it impossible to determine the position of the crimping receiver vibrator 7. The present invention solves such conventional problems, and improves work efficiency and reliability by crimping and positioning the shield cap of the coaxial cable. It is an object of the present invention to provide an improved method of attaching a shield cap to a coaxial connector.

Means for Solving the Problems In order to achieve the above object, the present invention provides a cylindrical insulating cap for positioning the caulking receptacle, which further facilitates soldering of the center conductor and center contact. Similarly, a U-shaped groove is provided in the insulating cap.

Operation The present invention has the following effects due to the above configuration. In other words, set the dimensions from the center conductor of the predetermined coaxial cable to the caulking socket (eve), determine the length of the insulated pipe, pass it through the center conductor insulation part, and insulate it to the center contact of the main body. By soldering, the center conductor of the coaxial cable and the center contact of the connector body can be combined.

Even if the shield pipe is pushed down after soldering, the insulating pipe can prevent the center conductor from buckling, and the shield wire can be crimped at a constant position.

Embodiment FIGS. 1 and 2 are diagrams for explaining one embodiment of the present invention. In Figures 1 and 2, 1 is the connector body;
2 is a coaxial cable, 3 is a center contact, 4 is a center conductor, 5 is a press-fit convex portion, 6 is a shield wire portion, 7 is a cylindrical metal caulking pipe having a flange at the bottom, 8 is an outer covering, 9
10 is a central conductor insulator, 10 is a cylindrical metal shield cap, 11 is an insulating pipe, 12 is a U-shaped groove provided at the bottom of the insulating pipe 11, 13 is an upper part of the shield cap, and 14 is a lower part thereof.

Next, a method of attaching the shield cap of the above embodiment will be explained. Pass the shield cap 10 through the coaxial cable 2 processed to predetermined dimensions, fit the crimp receiving pipe 7 between the shield wire portion 6 and the center conductor insulator 9, then pass the insulating pipe 11 through the center contact 3. Solder the center conductor 4 to. At this time, since the insulating pipe 11 has a U-shaped groove, the soldering work can be facilitated by inserting the center conductor 4 into the soldering pot of the center contact and aligning the U-shaped grooves. The soldering portion 15 can be hidden by rotating the insulating pipe 11 by half a turn as shown in FIG. 3(b).

Then, lower the shield cap 10 and press-fit the press-fit convex portion 5 of the connector body 1 with a shield cap press-fit jig,
Hexagonally caulk the upper part 13 of the shield cap.

In this way, according to the above embodiment, the insulating tube 11 prevents the center conductor 4 and the center conductor insulator 9 from buckling, and the positioning of the crimp receiving pipe becomes possible, and the hexagonal crimp of the shield cap 10 securely Conductivity can be obtained between the shield wire portion and the shield cap.

Effects of the Invention As is clear from the above embodiments, the present invention prevents buckling of the coaxial cable when the shield cap is press-fitted into the connector main body, and prevents the coaxial cable from buckling. This has the advantage that the shield can be completely contacted.

[Brief explanation of the drawing]

Fig. 1 is a side view of a coaxial connector applied to the method of attaching a shield cap of a coaxial connector according to an embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a side view of a conventional coaxial connector, and Fig. 4 is the same sectional view. 1...Connector body, 2...Coaxial cable, 3.
Center contact, 4... Center conductor, 5... Press-fit convex portion, 6... Shield wire portion, 7... Caulked pipe holder, 8
...Outer coating, 9.Center conductor insulator, 10.Shield cap, 11.Insulation pipe, 12.U-shaped groove, 13.Top of shield cap. Name of agent: Patent attorney Shigetaka Awano and 1 other person 2nd
Diagram (a)

Claims (1)

[Claims] When connecting a coaxial cable to a connector main body, a cylindrical shield cap is passed through the coaxial cable, a cylindrical caulking receiving pipe is fitted between the shield wire portion of the coaxial cable and the conductor insulator, An insulated pipe made of a cylindrical insulator having a U-shaped groove on the lower side surface is inserted into the tip of the caulking receiving pipe, and from the outside of the U-shaped groove, the tip of the center conductor of the coaxial cable and the center contact of the connector body are inserted. Then, the shield cap is pressed down and the lower part thereof is press-fitted into the connector body, and the upper part of the shield cap is hexagonally caulked to establish electrical continuity between the shield cap and the caulking receiver. How to install a shield cap on a coaxial connector.