JPH02295081A - Coaxial connector - Google Patents

Abstract

PURPOSE:To prevent degradation of characteristics in a connection part without additional parts by forming a socket hole with a shape widening toward the depths in a socket part of a center conductor in jack side and thickening the periphery part of the socket hole more as closer to the end. CONSTITUTION:A socket hole 10 having a splitting groove is formed in the end part of a socket part 7a of a center conductor 7 in a jack side and a pin contact 8a formed in the end of another center conductor 8 is inserted in the socket hole 10. The socket hole 10 is formed in the way widening toward the depths so that the end part of the surrounding of the hole contacts with the root of the pin contact 8a and the surrounding of the socket hole 10 is thickened more as closer to the end so that the outer diameter of the end of the socket part 7a becomes almost the same as the outer diameters of the center conductors 7, 8 when a pin contact 8a in a plug side is inserted in the socket hole 10. With this structure, connection of the center conductors is carried out without changing the outer diameters of the conductors and degradation of characteristics in the connection part can be prevented without complexing the structure and increasing the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a coaxial connector used for connecting coaxial cables, and particularly to the structure of a connecting portion of a center conductor thereof.

(Prior Art) In the conventional coaxial connector, as shown in FIG. 5, a socket hole 02 is formed at the tip 01a of the center conductor 01 on the jack side, while a socket hole 02 is formed at the tip 01a of the center conductor 01 on the jack side.
A pin contact l-03a is formed at the tip of the pin contact 03a, and the pin contact 03a is fitted into the socket hole 01a.

Here, the tip part (socket part) 01a of the center conductor 01 on the jack side is inserted into the pin contours 1 and 0 in the socket 1 and hole 02.
3a is compressed and deformed through the grooves so as to be held in contact with each other, and has spring properties.

(Problem to be Solved by the Invention) As described above, in the conventional coaxial connector, the socket 1/portion 01a of the center conductor 01 on the jack side is tapered, so the center conductors 01 and 03 are connected to each other. In this state, a stepped portion 8 is formed at the insertion connection portion, and the presence of this stepped portion 8 changes the characteristic impedance.

Therefore, as an improvement measure, in the prior art described in Section 2, a measure is taken to reduce the change in diameter by attaching an outer cylinder to the socket part, but this increases the complexity of the structure due to the addition of parts, and This resulted in an increase in costs.

The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a coaxial connector that can prevent characteristic deterioration at the connection portion without adding any parts. .

(Means for Solving the Problems) The characteristic configuration of the present invention to achieve the second object is that a socket hole with a deep expanding shape is formed in the socket part of the center conductor on the jack side, and the surrounding area of this socket hole is is made thicker toward the tip, and the outer diameter of the socket part is approximately equal to the outer diameter of the other part of the center conductor on the jack side when the pin contactor 1 of the center conductor of the mating connector is inserted into the socket hole. It is at the point set to the same value.

(Function) According to the second configuration, when the center conductors are connected to each other, there is almost no change in the outer diameter at the connecting portion, and a change in the characteristic impedance is prevented.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a cross-sectional view showing a coaxial connector according to the present invention in a connected state, and FIG. 2 is a cross-sectional view showing its separated state.

In the figure, l is a jack, 2 is a plug that is fitted and coupled to this jack I, and each has a cylindrical outer conductor 3.
4, and a solid shaft-shaped center conductor 7, 8 which is inserted and supported through the center of the conductor 5.6, and the outer conductors 3.4 and the center conductor 78 are connected to each other by plugging. It is designed to be electrically conductive.

On the inner periphery of the outer conductor 3 on the jack side, there is an outer conductor 4 on the plug side.
The tip of the is fitted inside.

Also, the tip socket l/portion 7a of the center conductor 7 on the jack side
A slotted socket hole 10 is formed in the center conductor 8, and a pin contour 8a formed at the tip of the other center conductor 8 is
It is inserted internally into this socket/hole 10.

The socket hole IO is formed into a shape that widens inward so that the tip of the peripheral portion comes into contact with the root of the pin contact 8a, and the peripheral portion of the socket hole IO is made thicker toward the tip. When the pin contact 8a on the plug side is inserted into the socket hole 10, the outer diameter of the tip of the socket portion 7a is made to be approximately the same as the outer diameter of the center conductors 7 and 8.

FIG. 3 shows a processing procedure for forming the socket portion 7a having the above shape.

As shown in FIG. 7(a), the material of the center conductor 7 is formed in advance into a tapered cone shape in which the diameter of the socket hole 7a becomes larger toward the tip end, and a hole slightly larger than the pin contact 8a is formed in the center of the material. A straight hole I1 of the diameter is bored.

Next, this socket part 7a is shown in FIG.
An appropriate number (four in this example) of grooves 12 are cut and formed in the socket part 7, as shown in FIG.
By squeezing and deforming a towards the center and imparting spring properties through a hardening process, a socket portion 7a having a socket hole 10 with an inwardly expanding shape with an inlet inner diameter slightly smaller than that of the bottle contact hole 08a can be obtained.

(Effects of the Invention) As explained below, according to the present invention, it is possible to connect center conductors to each other with almost no change in outer diameter.
It was possible to prevent characteristic deterioration at the connection part without complicating the structure or increasing costs.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a connected state of an embodiment of the present invention, Fig. 2 is a sectional view of a separated state, and Fig. 3 (a) (b) (c).
4 is an explanatory view showing the processing procedure of the socket part, and FIG. 4 is a perspective view of the socket part. FIG. 5 is a partially cutaway side view of a conventional center conductor portion. ■ Jack, 3, 4...outer conductor, 7, 8 center conductor,
7a...Socket part, 10 Socket hole, 8a pin contact Applicant: Orient Microwave Co., Ltd. Patent attorney Kazuhide Okada

Claims (1)

[Claims] (1) A socket hole is formed in the socket part of the center conductor on the jack side, and the peripheral part of this socket hole is made thicker toward the tip, and the outer diameter of the socket part is set in the socket hole of the other party. A coaxial connector characterized in that the outer diameter of the center conductor on the jack side is set to be approximately the same as the outer diameter of the other part of the center conductor when the pin contact of the center conductor of the connector is inserted.