JPH03138872A - Connector for coaxial cable - Google Patents

Abstract

PURPOSE:To facilitate the fitting/removing work of a coaxial cable and prevent the breakage of a core conductor by providing a core conductor terminal elastically contacting the core conductor and an external conductor terminal elastically contacting an external conductor. CONSTITUTION:A core conductor terminal 22 has a pair of pinching pieces 23 elastically contacting the core conductor 6 of a coaxial cable 5, and an external conductor termi nal 25 has a pair of gripping pieces 26 elastically contacting the external conductor 8 of the coaxial cable 5. When the core conductor 6 is positioned on the core conductor terminal 22 and the external conductor 8 is positioned on the external conductor terminal 25 respectively and the coaxial cable 5 is pressed down, the core conductor terminal 22 pinches the core conductor 6, the core conductor 6 and the signal pattern 2 of a printed wiring board 1 are brought into the conductive state, the external conductor terminal 25 grips the external conductor 8, and the external conductor 8 and the earth pattern 3 of the printed wiring board 1 are brought into the conductive state. When the coaxial cable 5 is pulled up, the coaxial cable 5 can be removed from a connector 22. The fitting/removing work of the coaxial cable 5 is facilitated, and the breakage of the core conductor 6 or the like can be prevented at the time of fitting or removing.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a coaxial line connector that connects the center conductor of the coaxial line to the signal pattern of the printed wiring board, and the outer conductor of the coaxial line 5 to the ground pattern of the printed wiring board. The purpose of the present invention is to provide a connector for coaxial wires that is easy to connect and disconnect wires and that does not cause damage to the center conductor during connection and disconnection. A connector cover mounted on a board wiring board and connecting between a center conductor of a coaxial line and a signal pattern of the printed wiring board, and between an outer conductor of the coaxial line and a ground pattern of the printed wiring board, The terminal for the center conductor and the terminal for the outer conductor are fixed to the insulator in parallel on a straight line by penetrating the insulator at their lower parts, and the terminal for the center conductor is attached to the insulator by penetrating the insulator. The external conductor terminal has a pair of gripping pieces that come into elastic contact with the outer conductor of the coaxial line, and a pin part that is inserted into a through hole connected to the signal pattern. , and a pin portion inserted into a through hole connected to the ground pattern.

[Industrial Application Field] The present invention relates to a coaxial line connector that connects the center conductor of the coaxial line to a signal pattern on a printed wiring board, and the outer conductor of the coaxial line 5 to a ground pattern on the printed wiring board.

[Conventional technology]

FIG. 4 is a diagram of a conventional example showing a state in which a coaxial line is connected to a printed wiring board.

In FIG. 4, 10 is an elongated rectangular parallelepiped insulator 11.
, an outer conductor terminal I3 having a U-shaped opening at the top that holds the outer conductor 8 of the coaxial line 5, and a substantially rectangular center conductor terminal having a slit I-12b into which the center conductor 6 of the coaxial yA5 is inserted. 12, it is a connecting tool configured with.

The outer conductor terminal 13 and the center conductor terminal 12 are fixed to the insulator 11 in parallel on a straight line by penetrating the insulator 11 at their lower parts.

The connector 10 configured as described above has the pin portion 13a of the outer conductor terminal 13 connected to the ground pattern 3, the pin portion 12a of the center conductor terminal 12 connected to the signal pattern 2, They are mounted on the printed wiring board 1 by inserting and soldering them respectively.

On the other hand, the outer conductor 8 (conductor braid) of the coaxial line 5 connected to the connector 10 is exposed by peeling off the outer sheath 9 of the terminal portion. Then, the outer conductor 8 and the insulator 7 at the tip of the exposed outer conductor 8 are further peeled off to expose the center conductor 6.

Therefore, the center conductor 6 is inserted into the slit 12b of the center conductor terminal 12 and soldered, the outer conductor 8 is held in the U-shaped part of the outer conductor terminal 13 and soldered, and the coaxial line 5 is connected to the connecting tool lO. , the center conductor 6 of the coaxial line 5 is connected to the signal pattern 2 of the printed circuit board 1, and the outer conductor 8 of the coaxial line 5 is connected to the ground pattern 3 of the printed circuit board l.

[Problem B to be Solved by the Invention] However, with the above-mentioned conventional connector, when connecting the coaxial line to the connector, the center conductor and the outer conductor must be soldered to their respective terminals, making the connection work difficult. There is a problem that it is troublesome.

On the other hand, during maintenance and inspection of printed circuit boards, it is necessary to heat and melt the solder bonding the center conductor and the center conductor terminal, and the outer conductor and the outer conductor terminal, and remove the coaxial wire.

At this time, since the center conductor is a thin conductor wire, there is a risk that the center conductor may be damaged when the solder is remelted or resoldered.

The present invention was created in view of these points, and an object of the present invention is to provide a coaxial line connector in which the coaxial line can be easily attached and detached, and there is no risk of damage to the center conductor during attachment and detachment.

[Means to solve the problem]

In order to achieve the above object, the present invention has a structure in which, as shown in FIG. 1, the center conductor terminal 22 and the outer conductor terminal 25 penetrate an insulator 21 having a rectangular parallelepiped shape with an elongated lower part. Then, the connectors 20 are arranged in parallel and fixed to the insulator 21 in a straight line, and the connector 20 is mounted on the printed circuit board 1 with the bottom surface of the insulator 21 in close contact with the surface of the printed circuit board l. shall be taken as a thing.

The center conductor terminal 22 is connected to the coaxial line 5 above the insulator 21.
A pair of clamping pieces 23 protrude into elastic contact with the center conductor 6 of the insulator 21, and a pin portion 22a protrudes from the bottom surface of the insulator 21 to be inserted and soldered into the through hole 2a connected to the signal pattern 2 of the printed wiring board 1. composition.

Further, the external conductor terminal 25 has a pair of gripping pieces 26 protruding above the insulator 21 that come into elastic contact with the outer conductor 8 of the coaxial line 5, and a ground pattern of the printed wiring board l on the bottom surface of the insulator 21. The configuration is such that a pin portion 25a that is inserted and soldered into a through hole 3a connected to 3 protrudes.

[Effect]

In the connector 20 mounted on the printed wiring board 1 as described above, the center conductor terminal 22 is connected to the center conductor 6 of the coaxial line 5.
The outer conductor terminal 25 is provided with a pair of grip pieces 26 that come into elastic contact with the outer conductor 8 of the coaxial line 5.

Therefore, when the center conductor 6 is aligned with the center conductor terminal 22 and the outer conductor 8 is aligned with the outer conductor terminal 25 and the coaxial wire 5 is pulled down, the center conductor terminal 22 is aligned with the center conductor terminal 25.
The center conductor 6 and the signal pattern 2 of the printed circuit board 1 are brought into conduction by holding the center conductor 6 and the signal pattern 2 of the printed circuit board 1, and the outer conductor terminal 25 grips the outer conductor 8 to connect the outer conductor 8 and the printed circuit board 1.
The ground pattern 3 becomes electrically conductive.

Moreover, the coaxial line 5 can be removed from the connector 20 by pulling the coaxial line 5 upward. That is, in the coaxial line connector of the present invention, the coaxial line can be easily attached and detached.

Furthermore, since the coaxial line 5 and the connector 20 are not soldered, there is no risk of damage to the center conductor etc. when the coaxial line is attached or detached.

〔Example〕

The present invention will be specifically described below with reference to the drawings. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 2 is a detailed view of the embodiment of the present invention, (a-1) is a side view of the cover integrated, (a-2) is a front view of the cover integrated,
(b-1) is a side view of the connector body, (b-2) is a rear view of the connector body, (b-3) is a front view of the connector body, and FIG. 3 is a side view of the embodiment of the present invention. It is.

As shown in FIG. 2 (b-1), (b-2), and (b-3), the connector main body 2OA has a center conductor terminal 2.
2 and an external conductor terminal 25 are fixed to the insulator 21 in parallel on a straight line by penetrating the rectangular parallelepiped-shaped insulator 21 at the bottom thereof.

The center conductor terminal 22 made of an elastic and highly conductive metal is connected to the insulator 21 as shown in detail in FIG. 2 (b-3).
A pair of clamping pieces 23 that come into elastic contact with the center conductor 6 of the coaxial line 5 protrude above. To be more specific, a vertical cut is made in the upper part of the rectangular shape, and the upper part of the center conductor terminal 22 is separated into two clamping pieces 23. One clamping piece 23 is shaped like an S, and the other clamping piece 23 is shaped like an inverted S. It is curved into a letter shape.

Therefore, when the coaxial line 5 is pulled down from above the pair of clamping pieces 23, the center conductor 6 pushes the clamping pieces 23 apart to the left and right,
The center conductor 6 enters the substantially circular curved portion formed by the pair of clamping pieces 23. As a result, the clamping piece 23 returns elastically and comes into elastic contact with the outer peripheral surface of the center conductor 6 so as to clamp it.

Further, the lower tip portion of the center conductor terminal 22 that penetrates the insulator 21 protrudes from the bottom surface of the insulator 21 to form a pin portion 22a.

This pin portion 22a is inserted and soldered into a through hole 2a connected to the signal pattern 2 of the printed wiring board l.

On the other hand, an external conductor terminal 2 made of an elastic and highly conductive metal
As shown in detail in FIG. 2 (b-2), a pair of gripping pieces 26 project above the insulator 21 and come into elastic contact with the outer conductor 8 of the coaxial line 5.

Specifically, each gripping piece 26 is curved outwardly in a convex semicircular shape, and its upper edge is curved outwardly. Then, a U-shaped cut is made in the lower part of the body shell of each clamping piece 23, and a tongue piece 27 is provided which is bent inward and comes into elastic contact with the lower part of the outer peripheral surface of the center conductor 6.

Therefore, when the coaxial line 5 is pulled down from above the pair of gripping pieces 26, the outer conductor 8 pushes the gripping pieces 26 apart to the left and right.
The outer conductor 8 enters the circular curved portion formed by the pair of gripping pieces 26. As a result, the gripping piece 26 is elastically restored and comes into elastic contact with the outer circumferential surface of the outer conductor 8 so as to grip it.

Further, two rod-shaped pins are provided at the lower part of the external conductor terminal 25, and these pins penetrate the insulator 21 and protrude from the bottom surface of the insulator 21 to form a pin portion 25a.

This pin portion 25a is inserted and soldered into a through hole 3a connected to the ground pattern 3 of the printed wiring board 1.

Furthermore, elongated thin plate-like protrusions 21a are provided on both side walls of the insulator 21 of the connector main body 2OA.

In order to protect the contact portion with the coaxial line 5 and to strengthen the contact between the external conductor terminal 25 and the external conductor 8, the connector main body 2OA described above is provided with A cover unit 30 shown in 2) is attached.

The cover unit 30 is a molded insulator,
A hollow portion 32 that is open at the bottom is provided at the axial center of the elongated rectangular parallelepiped cover body 31, and the upper portions of the left and right inner walls of the hollow portion 32 are arcuate, and the upper portions of the outer surfaces of the gripping pieces 26 of the connector body 20A are shaped like arcs. There is a curved wall surface 328 that presses against the curved wall surface 328.

Further, a pair of engagement plates 33 having a thin wall and rectangular shape in side view are protruded downward from the lower end surface of the cover body 31 so as to sandwich the left and right side surfaces of the insulator 21 . Each of the attachment plates 33 is provided with a window 34 that is longer than the protrusion 21a of the insulator 21 and has a rectangular shape when viewed from the side.

Therefore, when the cover unit 30 is attached to the connector main body 2OA and the lower edge of the engagement plate 33 abuts against the protrusion 21a of the insulator 21, the engagement plate 33 is bent to open outward. Then, when the cover unit 30 is further pressed, the engagement plate 33 is further lowered and the window 34 is engaged with the protrusion 21a.

That is, the cover unit 30 is attached to the connector main body 2OA and maintains this state.

Note that by opening the locking plate 33 outward with your fingers or the like, the cover body 31
By pulling up, the cover assembly 30 can be removed from the connector main body 2OA.

As shown in FIG. 3, the connector main body 20^ configured as described above has the pin part 25a of the outer conductor terminal 25 connected to the ground pattern 3 of the printed wiring board l, and the center conductor terminal 22. The pin portions 22a (22a) are mounted on the printed circuit board l by inserting and soldering them into the through holes connected to the No. 8 pattern 2.

On the other hand, in the coaxial line 5, the outer sheath 9 at the terminal portion is peeled off to expose the outer conductor 8 (conductor bundle), and the outer conductor 8 and the insulator 7 at the tip of the exposed outer conductor 8 are further removed. The central conductor 6 is exposed by peeling it off.

After aligning the center conductor 6 of the coaxial wire 5 with the center conductor terminal 22 of the connector body 20 and the outer conductor 8 with the outer conductor terminal 25, push down the coaxial wire 5 and place the center conductor 6 between the pair of clamps. At the same time, the outer conductor 8 is pushed between the pair of gripping pieces 26.

Therefore, the clamping piece 23 is in elastic contact with the outer circumferential surface of the center conductor 6 so as to clamp it, and the gripping piece 26 is in elastic contact with the outer circumferential surface of the outer conductor 8 in a gripping manner.

Then, push down the cover 30 from above the coaxial line 5,
The cover unit 30 is attached to the connector main body 208.

Therefore, in addition to the grip piece 26 being in elastic contact with the outer conductor 8 due to its own elasticity, the 3° curved wall surface 32A of the cover is pressed so as to sandwich the upper part of the outer surface of the grip piece 26. do. Therefore, the gripping piece 26 is attached to the outer conductor 8 of the coaxial line 5.
The gripping piece 26 is pressed against the outer conductor 8 with a stronger force.
Closely attached to.

That is, the center conductor 6 of the coaxial line 5 is connected to the signal pattern 2 of the printed wiring board l via the center conductor terminal 22.
The external conductors 8 are connected to the ground patterns 3 of the printed wiring board l via external conductor terminals 25, respectively.

[Effects of the Invention] As explained above, the present invention provides a printed temporary arrangement that includes a center conductor terminal that comes into elastic contact with the center conductor and an outer conductor terminal that comes into elastic contact with the outer conductor 8! This is a coaxial line connector mounted on IIAFi, and has excellent practical effects, such as easy attachment and detachment of the coaxial line and no risk of damage to the center conductor during attachment and detachment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the principle of the present invention; FIG. 2 is a detailed diagram of an embodiment of the present invention. (a-1) is a side view of the cover integrated; (a-2) is a front view of the cover integrated; (b-1) is a side view of the connector body; (b-2) is a rear view of the connector body. (b-3) is a front view of the connector body; FIG. 3 is a side view of an embodiment of the present invention; Figure 4 is a diagram of the conventional example, (a) is a side view; (b) is a front view. In the figure, l is printed circuit board, 2 is the signal pattern, 3 is the earth pattern, 2a and 3a are through holes, 5 is a coaxial line, 6 is the center conductor, 8 is an outer conductor; 10 is a connecting tool, 11 and 21 are insulators, 12.22 is the center conductor terminal, 13 and 25 are terminals for external conductors; 20 is a connector, 208 is the connector body, 22a and 25a are pin parts, 23 is a clamping piece; 26 is a grip piece; Reference numeral 30 indicates an integrated cover. i same number line Same car II? Repeat ζ #+ view showing the principle of the present invention Illustration of conventional example Figure 4 Figure 1

Claims (1)

[Claims] The insulator (21) is mounted on the printed circuit board (1) with the bottom surface in close contact with the surface of the printed circuit board (1), and the center conductor (6) of the coaxial line (5) ) and the signal pattern (2) of the printed circuit board (1), and between the outer conductor (8) of the coaxial line (5) and the ground pattern (3) of the printed circuit board (1), respectively. A connector to be connected, in which the center conductor terminal (22) and the outer conductor terminal (25) each have a lower portion penetrating the insulator (21).
They are fixed to the insulator (21) in parallel on a straight line, and the center conductor terminal (22) includes a pair of clamping pieces (23) that come into elastic contact with the center conductor (6), and the signal pattern. Pin part (22a) inserted into through hole (2a) connected to (2)
The external conductor terminal (25) has a pair of gripping pieces (26) that come into elastic contact with the external conductor (8) of the coaxial line (5), and a through hole connected to the ground pattern (3). A coaxial line connector characterized in that it has a pin portion (25a) that is inserted into the hole (3a).