JPH026626Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to an L-shaped coaxial connector.
In particular, the present invention relates to a connector that is small, inexpensive, and highly reliable.

(Prior Art and Problems) A known L-shaped coaxial connector of this type is disclosed in Japanese Utility Model Application No. 61-99985 filed by the present applicant.

The above-mentioned connector is fixed in an outer cylindrical shell that is held from the outer periphery of a center terminal for connecting the center conductor of the coaxial cable, and the exposed center conductor of the coaxial cable is inserted into the center terminal on the rear end side of the center terminal. After inserting the coaxial cable from above and bringing the tip of the internal dielectric of the coaxial cable close to the rear end of the center terminal, insert the lid part, which is formed upright with a neck part on a part of the outer cylindrical shell, at a right angle. By bending, the coaxial cable was also bent to form the connector into an L shape.

However, it has been found that such conventional L-shaped coaxial connectors have the following problems.

First, before the cover is bent, the internal dielectric of the coaxial cable is located so far that its tip touches the rear end of the center terminal, so when it is outside the center terminal, the center conductor is completely covered with the internal dielectric. The surrounding area is covered by However, with the bending of the lid, the inner conductor separates from the rear end of the center terminal on the outside of the bend, creating a space, and in that area, the center conductor directly opposes the outer cylinder shell. There was a risk that the center conductor would come close to the shell, resulting in a breakdown voltage, or that the center conductor would come into contact with the outer shell, causing a shoot.

Furthermore, since the axial position of the internal dielectric of the coaxial cable is not fixed, if the internal dielectric is bent together with the lid, excessive stress will be applied to that part, causing the internal dielectric to bend. This caused cracks, etc.

Furthermore, if the tip of the center conductor and the tip of the center terminal are fixed by soldering or caulking before bending the lid, when the lid is bent, the inside of the center terminal near the rear end of the center terminal may be In the space created by separation of the conductors, the center conductor sagged and came into contact with the outer cylindrical shell, sometimes causing shortening.

(Means and effects for solving the problems) The present invention solves the problems as described above, and even when the lid is bent, there is a dielectric between the center conductor and the outer cylinder shell. It is an object of the present invention to provide an L-shaped coaxial connector that does not cause bending in the internal dielectric of the coaxial cable and is free from electrical and mechanical defects as in the prior art.

In order to achieve the above object, the present invention provides a center terminal that is connected to the center conductor of the coaxial cable and becomes a part of the center conductor of the coaxial path, and a center terminal that is connected to the outer conductor of the coaxial cable and becomes a part of the outer conductor of the coaxial path. an outer cylindrical shell, a dielectric member that holds the center terminal while electrically isolating the center terminal and the outer cylindrical shell, and a crimp sleeve that is crimped and connected by crushing on the outer periphery of the outer sheath of the coaxial cable. The outer cylindrical shell includes a cylindrical portion holding the dielectric, a cylindrical outer conductor crimp receiving portion inserted between the inner dielectric and the outer conductor of the coaxial cable, and a circular cylindrical portion of the cylindrical portion. Extending from a part of the circumference in the axial direction,
The external conductor crimp receiving part is on the same side as the cylindrical part,
and an intermediate part that is integrally connected to the external conductor crimp receiving part in a parallel position, and the intermediate part has the intermediate part as a base and extends in a direction perpendicular to the axis of the cylindrical part so as to surround the cylindrical part. It has an extending U-shaped arm, and a lid that covers the opening of the cylindrical part when the intermediate part is bent at a substantially right angle to the U-shaped arm, and the dielectric body has a cylindrical shape that holds the center terminal. The cable protector includes a holding main body part and a cable protecting part provided on the upper part of the holding main body part, and the cable protecting part includes a hinge part that bends together with the middle part when the middle part is bent, and a cable protecting part provided on the upper part of the holding main body part. and a stepped portion for positioning the tip of the dielectric.

According to the present invention having such a structure, when the lid is bent, the stepped portion formed in the cable protection portion axially restricts and positions the tip of the internal dielectric of the coaxial cable. The inner dielectric is not bent, and the hinge part of the cable protector exists in the space that was conventionally created by separation of the inner dielectric, so the center conductor can directly face the outer shell. They will no longer approach or come into contact with each other, and will be in an electrically perfect state.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing each part of the L-shaped coaxial connector of this embodiment, FIG. The figure is a cross-sectional view of a completed product with cables installed and wiring completed.

The L-shaped coaxial connector 100 of the present invention is composed of an outer cylindrical shell 110, a male terminal 120 as a center terminal, a dielectric 130, and a crimp sleeve 140.

The outer cylindrical shell 110 is formed by pressing a metal sheet material, and has a dielectric 130 held inside at its lower part, and is connected to the outer conductor shell of a mating connector (not shown) on the outer peripheral surface. The cylindrical portion 111 has a cylindrical portion 111 provided on its upper outer periphery with a locking groove 112 for locking when connected to the mating connector. Directly above the cylindrical part 111, a U-shaped arm part 113 is provided which extends perpendicularly to the axis of the cylindrical part 111, and its tip end is connected to the stepped part 114'.
A rectangular extension 114 is formed. Further, above the U-shaped arm portion 113, a lid portion 11 is provided which covers the upper opening of the cylindrical portion 111 by bending.
A groove-shaped neck portion 116 is formed between the lid portion 115 and the U-shaped arm portion 113, which is convenient for bending the cylindrical portion 111 into an L shape by 90 degrees.
A substantially cylindrical external conductor crimp receiver 117 having a slotted portion 118 is integrally provided above the lid portion 115 . An uneven part 119 having a plurality of grooves is provided on the outside of the outer conductor crimping receiving part 117, and the outer conductor of the coaxial cable bites into the uneven part 119 to further strengthen the connection. ing.

As shown in FIGS. 2 and 3, the male terminal 120 is made of a metal material and has a cylindrical shape with a hollow portion 121. An annular protrusion 122 is provided approximately in the middle of the cylindrical male terminal 120 to prevent it from coming off from the dielectric 130.
Further, the upper end of the male terminal 120 is connected to the dielectric 13
A stepped portion 123 is provided for positioning at zero.

Further, the crimp sleeve 140 is attached to the coaxial cable 1
It has a cylindrical shape with an inner diameter slightly larger than the outer diameter of 50 mm.

The dielectric body 130 includes a cylindrical holding body portion 131 that holds the male terminal 120, and a holding body portion 131 that holds the male terminal 120.
It is formed with a cable protection part 135 provided on the upper part of the cable. At the upper end of the holding body part 131,
The holding main body part 13 is inside the cylindrical part 111 of the outer cylinder shell.
A protrusion 132 is formed that serves as a stopper to determine the position in the insertion direction when the holder 1 is inserted. On the other hand, the protection part 135 has a lower part that is continuous with the holding main body part 131 and has a lower part.
A thin and constricted hinge part 136 is formed to allow the cable to be bent at 90 degrees, and an end part 137 for temporarily holding the tip of the dielectric material 152 of the cable is provided on the upper part of the hinge part 136, and an end part 137 is provided below the hinge part 136 for temporarily holding the tip of the dielectric material 152 of the cable. is provided with a stepped portion 138 for preventing and holding the tip of the dielectric 152 that moves downward from the end portion 137 from moving further downward when the protective portion 135 is bent at 90 degrees. It is being

Such an L-shaped coaxial connector 10 according to the present invention
The procedure for connecting the coaxial cable to 0 is as follows.

First, the outer sheath 154 of the coaxial cable 150
1, and the center conductor 151 and dielectric 152 of the cable are inserted into the outer conductor crimp receiver 117 of the connector shown in FIG. 2. I will do it. When these are further inserted, the center conductor 151 of the coaxial cable is inserted into the hollow part 1 of the male terminal.
21 , the outer conductor crimp receiver 117 of the outer cylinder shell 110 enters between the dielectric 152 and the outer conductor 153 of the coaxial cable.
And the tip of the dielectric 152 of the coaxial cable,
The dielectric member 130 is brought into contact with the upper end portion 137 of the cable protection portion 135.

Next, grasp the outer peripheral surface of the outer conductor 153 of the cable externally fitted to the outer conductor crimping receiving part 117 with a simple appropriate tool, and then press the outer cylinder shell 153 as it is.
0 is bent 90 degrees at the neck 116, the dielectric 13
The hinge portion 136 provided on the cable protector 135 of No. 0 is also bent together with this.
At this time, the tip of the dielectric 152 of the cable slides down from the upper end 137 as the hinge 136 bends, moves downward, and comes into contact with the step 138 to be locked. In this bending operation, the tip of the dielectric 152 of the coaxial cable is
38, and the bent portion of the cable center conductor 151 is also positioned by the hinge portion 136.
Of course, it is completely protected by the cylindrical shell and does not come into contact with the outer cylindrical shell, and a dielectric material is definitely present between the two.

Thereafter, as shown in FIG.
14 of the extension part so that the step part 11 enters into the extension part.
4' and crimped from the outside of the crimp sleeve 140 using an appropriate crimp connection jig (not shown), the cable inserted into the hollow part 121 of the male terminal is Gently pull the conductor 153 at the tip of the male terminal toward the tip (downward in the figure) so that there is no slack inside the connector, and then swage or solder the conductor 153 at the tip of the male terminal. Finally, the L-shaped coaxial connector of the present invention is completed by cutting off the external conductor 153 that protrudes excessively from the tip of the male terminal.

(Effects of the invention) According to the invention as described above, when the lid of the outer cylinder shell is bent at right angles at the neck, the tip of the internal dielectric of the cable is positioned in the axial direction, and the tip of the cable is positioned in the axial direction. The internal dielectric does not bend, and the bent part of the cable center conductor is completely protected by the hinge part of the cable protector.
There is no risk of cracks or the like occurring in the internal dielectric of the coaxial cable, or of the center conductor sagging and coming into contact with the outer cylindrical shell, resulting in shoots, thereby improving the reliability of the connector.

[Brief explanation of the drawing]

Fig. 1 of the accompanying drawings is an exploded perspective view showing an L-shaped coaxial connector according to an embodiment of the present invention, and Fig. 2 shows a semi-finished product state in which the terminal-treated cable of Fig. 1 is inserted into the connector. Sectional view shown, 3rd
The figure is a cross-sectional view of the finished product shown in Fig. 2 with a crimp sleeve also attached after bending. 100...L type coaxial plug connector, 110...
...Outer cylinder shell, 111...Cylindrical part, 113...U
character arm part, 114...extension part, 115...lid part, 1
17...Outer conductor crimp receiving part, 119...Irregularity part,
120... Center terminal (male terminal), 130... Dielectric, 131... Holding body, 135... Protective part, 1
36...Hinge part, 138...Step part, 140...
Crimp sleeve, 150... Coaxial cable, 151
... Center conductor, 152 ... Internal dielectric, 153 ...
...Outer conductor, 154...Outer coating.

Claims (1)

[Claims for Utility Model Registration] A center terminal that is connected to the center conductor of the coaxial cable and becomes part of the center conductor of the coaxial path, and an outer cylinder that is connected to the outer conductor of the coaxial cable and becomes part of the outer conductor of the coaxial path. a dielectric body that holds the center terminal while electrically isolating the center terminal and the outer cylinder shell, and a crimp sleeve that is crimp-connected by crushing on the outer periphery of the outer sheath of the coaxial cable; The outer cylindrical shell includes a cylindrical part that holds the dielectric, a cylindrical outer conductor crimp receiving part inserted between the inner dielectric and the outer conductor of the coaxial cable, and a part on the circumference of the cylindrical part. extending in the axial direction from the
The external conductor crimp receiving part is on the same side as the cylindrical part,
and an intermediate part that is integrally connected to the external conductor crimp receiving part in a parallel position, and the intermediate part has the intermediate part as a base and extends in a direction perpendicular to the axis of the cylindrical part so as to surround the cylindrical part. It has an extending U-shaped arm and a lid that covers the opening of the cylindrical part when the intermediate part is bent at a substantially right angle in the direction of the U-shaped arm, and the dielectric has a cylindrical shape that holds the center terminal. The cable protector includes a holding main body part and a cable protecting part provided on the upper part of the holding main body part, and the cable protecting part includes a hinge part that bends together with the middle part when the middle part is bent, and a hinge part that bends together with the middle part when the middle part is bent. An L-shaped coaxial connector characterized by comprising: a stepped portion for positioning the tip of the dielectric.