JPH076828A - Coaxial connector device - Google Patents

Abstract

PURPOSE:To carry out integral formation of a contact member via an insulator so as to simplify production and to facilitate connection work by providing such a structure including a cylindrical conductor, a rod conductor, and an approximately vertical plane base board. CONSTITUTION:A contact 2 consists of a cylindrical contact member 11, which is formed of a conductive material, a rod contact member 12, which is arranged around the center of the cylindrical contact member 11 and is formed of a conductive material, and an insulator 13, which is arranged between the members 11, 12 and insulatingly holds both members 11, 12. The point end of a cylindrical contact member forming a male side contact is press-fitted to the point end of the member 11, and both of the cylindrical contact members are communicated with each other by this press-fitting and shield the rod contact member side arranged in the inside. On the base end sides of the members 11, 12, rod building parts 11a, 12a are integrally formed respectively, and the building parts 11a, 12a are passed through holes 14a, 15a, which are arranged in a printed base board 3 and serves as connecting holes, and are connected and fixed by means of soldering or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial connector device which can be easily connected to a coaxial line.

[0002]

2. Description of the Related Art Generally, when connecting between a plurality of electronic devices on which various electronic circuits are mounted, a connector is provided on one device and a connector provided on the end of a cable extending from the other device. To make an electrical connection.

FIG. 10 shows the vicinity of a rear panel 71 of an image processing apparatus 70 using a conventional coaxial connector device. A plurality of coaxial lines 73 are provided on the substrate 72 in the image processing apparatus 70.
A board mounting connector 75 is connected to one end of a cable 74 consisting of, and a female connector 76 is connected to the other end of the cable 74. The shell 77 of the female connector 76 is fixed to the rear panel 72 with screws, and the male connectors 80 provided at the ends of the cables 78 of a plurality of coaxial lines are connected from the rear of the rear panel 72.

The male side connector 80 and the female side connector 7
6 is provided with a plurality of contacts having a shield function. FIG. 11 shows a connection structure of one coaxial wire 79 in the cable 78 and one male side contact 81 forming the male side connector 80. The coaxial wire 79 has a core wire 82 formed in the central portion thereof covered with an outer covering conductor 84 via an insulator 83 so as to have a shielding function.

The covered conductor 84 is a cylindrical contact member 85.
Is connected by soldering or crimping. Also, the core wire 8
2 is an insulator 86 near the center of the cylindrical contact member 85.
It is connected to the rod-shaped contact member 87 which is integrally held with the contact member 85 via soldering or pressure bonding.

FIG. 12 shows a connection structure of one coaxial wire 73 and one female contact 88 forming the female connector 76. The coaxial line 73 has a shield function,
The core wire 89 formed in the central portion is covered with an outer covering conductor 91 via an insulator 90.

The covered conductor 91 is a cylindrical contact member 92.
Is connected by soldering or crimping. Also, the core wire 8
9 is an insulator 93 near the center of the cylindrical contact member 92.
It is connected to the rod-shaped contact member 94 integrally held with the contact member 92 via soldering or pressure bonding. Both contacts 81 and 88 of FIGS. 11 and 12 can be fitted as shown in FIG. 13 to maintain the electrical connection.

[0008]

However, in the structure shown in FIGS. 9 and 10, it is difficult to perform the work such as soldering for connecting to the coaxial wire, and there is a drawback that the cost is increased because it takes time. .

In the conventional example, the coaxial line 73 shown in FIG.
After the rod-shaped contact member 94 is attached to the core wire 89, the insulator 93 and the cylindrical contact member 92 are attached from above.
Since the work of crimping for attaching the member consisting of and is performed, if the hole in the center of the insulator 93 is not slightly larger than the diameter of the rod-shaped contact member 94, the insulator 93 and the cylindrical contact member 92 Difficult to attach In short, there has been a problem that rigor is required to open a hole in the center of the insulator 93.

Further, there is a drawback that it is difficult to judge whether or not there is a contact failure between the core wire 89 of the coaxial wire 73 and the rod-shaped contact member 94 in FIG. 12, for example.

The present invention has been made in view of the above points, and an object of the present invention is to provide a coaxial connector device having advantages such as easy assembling work and simple manufacture.

[0012]

[Means and Actions for Solving the Problems] A cylindrical conductor,
A contact member having a rod-shaped conductor provided substantially parallel to the longitudinal direction of the tubular conductor at a substantially central position of the tubular conductor, and one end of the tubular conductor and the rod-shaped conductor. By providing a structure in which conductive parts to which the provided protruding parts are respectively connected and fixed are provided, and having a planar substrate that is substantially perpendicular to the cylindrical conductor and the rod-shaped conductor, the cylindrical conductor and the rod-shaped conductor are provided. The contact member having the above can be integrally molded through the insulator to simplify the manufacturing process, and the connection work between the contact member and the flat substrate can also be facilitated.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 relate to a first embodiment of the present invention, FIG. 1 is an exploded view of a coaxial connector device of the first embodiment of the present invention, and FIG. 2 shows a coaxial contact and a printed circuit board. 3 is a perspective view of a coaxial contact, FIG. 4 is a perspective view showing a state in which the contact is connected to a printed circuit board, and FIG. 5 is an image processing apparatus in which the coaxial connector device of the first embodiment is applied to an electronic device. Shown near the rear panel.

As shown in FIG. 1, the coaxial connector device 1 of the first embodiment is a female coaxial connector device, and the coaxial connector device 1 has a plurality of coaxial contacts (hereinafter referred to as contacts) 2. 2, ... and multiple contacts 2,
A flat printed circuit board 3 to which the base ends of 2, ... Are connected,
Hole 4 for insulating and holding a plurality of contacts 2, 2, ...
, are formed, and the shell 4 is provided with a connecting portion on the front side to which the other (male side) connector is connected.

Mounting holes 6 are provided in the printed circuit board 3 and the shell 4 at four corners, for example, and can be fixed to the rear panel 71 or the like by screws 7 as shown in FIG. Figure 2
Shows a contact 2 and a printed circuit board 3 to which the contact 2 is connected and fixed. In addition, in FIG. 2, for simplification,
The printed circuit board 3 is shown with a connecting portion for connecting only one contact 2.

As shown in FIG. 2 (a), the contact 2 is a cylindrical contact member 11 made of a conductive material such as metal.
And a rod-shaped contact member 12 disposed near the center of the tubular contact member 11 and formed of a conductive member such as metal, and disposed between the tubular contact member 11 and the rod-shaped contact member 12, both contact members 11, 12
And a ring-shaped insulator 13 for insulating and holding.

In this embodiment, the contact is on the female side,
Therefore, a press-fitting recess into which the tip of the rod-shaped contact member forming the male contact is press-fitted is formed on the tip end side of the rod-shaped contact member 12, and the rod-shaped contact members are electrically connected by this press-fitting.

Further, the tip of the tubular contact member 11 is press-fitted with the tip of a tubular contact member forming a male side contact, and by this press-fitting, both tubular contact members conduct, and the rod-shaped contact member side disposed inside Shield. Although the structure of the female contact is shown in FIG. 2 and the like, it is also possible to configure a connector device having a structure of the male contact.

As shown in FIG. 3, the cylindrical contact member 1
1 and the rod-shaped contact member 12 are integrally molded, for example, so that the rod-shaped molded portions 11a and 12a project from the base end side, respectively. As shown in FIG.
2a is passed through through-holes 14a and 15a, which serve as connection holes provided in the printed circuit board 3, and can be connected and fixed by soldering or the like.

As shown in FIG. 2C, the through hole 14
a and 15a have hole diameters into which the rod-shaped molded portions 11a and 12a can be inserted, respectively, and the through holes 14a and 15a
Is a strip line 16a formed on the printed circuit board 3,
Each strip line 16 is connected to the land portion 17a.
The other ends of a and 17a are extended downward, for example, so that they can be connected to a flat cable 61 as shown in FIG. 5, for example.

Therefore, the rod-shaped molded portions 11a and 12a on the base end side of the contact 2 shown in FIG. 2A are passed through the through holes 14a and 15a of the printed circuit board 3 shown in FIG. ), The through hole 14a,
The rod-shaped molding portions 11a and 12a protruding to the back surface side of 15a can be fixed to the printed circuit board 3 with solders 18 and 18, respectively.
By this fixing, the tubular contact member 11 and the rod-shaped contact member 12 are respectively striplines 16a and 17a.
It is electrically connected to a.

The printed circuit board 3 has a plurality of contacts 2,
FIG. 4 shows a state in which 2, ... After that, the tips of the contacts 2, 2, ... Are attached to the holes 4a, 4a,
It is possible to connect and fix the printed circuit board 3 and the shell 4 with the screws 7, 7 ,.

When connecting a cable to the coaxial connector device 1, a plurality of coaxial wires may be connected respectively, or a flat cable 61 may be connected as shown in FIG. This FIG. 5 shows a conventional connector 76 shown in FIG.
An example in which the first embodiment is applied instead of

According to the first embodiment, the coaxial connector device 1 can be manufactured only by soldering the base end side of the contact 2 to the printed circuit board 3. This soldering work is also easy. It can be manufactured in a short time with simple work. Therefore, the cost can be reduced.

On the other hand, in the conventional example, after performing the work of soldering the core wire to the rod-shaped contact member, the work of crimping the rod-shaped contact member to the tubular contact member side (the hole of the insulator thereof) as described above is performed. You will need it. This crimping work becomes difficult unless the manufacturing precision of both members is sufficiently high.

Further, according to this embodiment, the contact 2
By adopting a structure in which the base end side of the above is soldered to the printed circuit board 3, for example, the rod-shaped contact member 94, the insulator 93, and the tubular contact member 9 in the conventional example shown in FIG.
It is not necessary to divide into two members such as 2 and it becomes possible to integrally mold.

With this structure, it is not necessary to provide a slight gap between the insulator 13 and the rod-shaped contact member 12 in FIG. Is necessary, and if it is too large, it will rattle, making it difficult to connect to the other connector).

Further, in this embodiment, the connection state between the contact 2 and the printed circuit board 3 can be easily visually recognized (in the conventional example, it is not visually recognizable whether or not there is a connection failure between the core wire and the rod-shaped contact member connected thereto). .

Although FIG. 5 shows an example in which the coaxial connector device 1 of the first embodiment is used on the connector receiving side, it can be reversed. That is, the coaxial connector device 1 of the first embodiment is used as the male connector to which the cable 78 of FIG. 5 is connected, and the connector 80 side of FIG. 5 is attached to the board 72 side via the cable 74 of FIG. May be.

Further, in the first embodiment, the printed circuit board 3 to which the base end side of the contact 2 is connected has through holes 14a,
Although it is described that 15a is provided, it may be a simple hole formed in the land portion on the back surface.

FIG. 6 shows a contact 2 and a printed circuit board 3 to which the contact 2 is connected and fixed in the second embodiment of the present invention. For simplification, FIG. 6 shows the case where only one contact 2 is connected to the printed circuit board 3.

The contact 2 in this embodiment is formed by bending the cylindrical contact member 11 and the rod-shaped contact member 12 so that they are substantially perpendicular to the longitudinal direction instead of the rod-shaped molded portions 11a and 12a on the base end side. That is, L-shaped forming portions 11a 'and 12a' which are bent into an L-shape are formed.

On the other hand, in the printed circuit board 3, not the through holes 14a and 15a but the L-shaped molding portions 11a 'and 12 are formed.
The land portions 21 and 22 respectively contacting the tip of a '
It is provided on one side. The land portions 21 and 22 are, for example, rectangular as shown in FIG. 6B, and are formed by a print pattern. A coaxial wire or the like can be attached to the end (lower end) of this print pattern.

According to this embodiment, the connection portion with the contact 2 can be formed simply by the print pattern. Other effects are similar to those of the first embodiment.

FIG. 7 is an exploded view of the third embodiment of the present invention. In this embodiment, a waterproof structure is provided between the shell 4 and the contact 2. The insulating tube 31 is interposed between the shell 2 and the contact 2 housed in each hole 4a. FIG. 8 (a) shows a simplified sectional view of the shell, and FIG. 8 (b) shows a front view.

For simplification, FIG. 8 shows a case where only one contact 2 is mounted on the shell 4.

When the contact 2 is housed in the hole 4a of the shell 4 also in the first and second embodiments, the insulator 1 is used.
3 is made of a polymer compound having extremely low permeability, and is shaped so as to fill the gap between the cylindrical contact member 11 and the rod-shaped contact 12, and the insulator 13 and both contact members 11, 1
It is possible to have a waterproof function by bringing the 2 and 2 into close contact with each other. In this embodiment, when the contact 2 shown in FIG. 6 is further housed in the hole 4a of the shell 4, the insulating tube 31 is interposed so that the shell 4 and the tubular contact member 11 have a waterproof structure.

That is, as shown in FIG.
An insulating tube 31 is interposed in close contact with the gap between a and the tubular contact member 11, and the material of this insulating tube 31 is a high-permeability polymer compound of thermoplastic material,
After assembly, heat is applied to solidify the shell 4 and the tubular contact member 11 to form a waterproof structure.

This embodiment is the first except that it has a waterproof function.
It has substantially the same effect as the embodiment. FIG. 9 shows the fourth embodiment of the present invention.
The printed circuit board 3 in an Example is shown. Note that in FIG. 9 as well, for simplification, the printed circuit board 3 has two contacts 2
Is shown when connected. In this embodiment, an electrostatic protection diode 41 is provided at the connecting portion of each contact 2.

For example, the through hole 14 shown in FIG.
a and 15a are pattern-connected to land portions 42a and 43a for surface-mounting the diode 41.
The diode 41 is connected to a and 43a by soldering. The other through holes 14a and 15a have the same structure.

Although this embodiment is surface-mounted, a leaded diode may be mounted by forming a through hole or the like on the printed board. Also, without fixing the diode,
You may connect to a diode electrode through a lead wire by soldering from the mounting through holes 14a and 15a vicinity.

The effects of this embodiment have the following effects in addition to the effects of the first embodiment. As is well known, a detachable connector often touches the connector pin with bare hands, and static electricity charged by the person itself may flow into the electric circuit via the connector pin and destroy the circuit. As a countermeasure, a protective diode is inserted between the ground potential side of the coaxial line and the signal potential.

In this embodiment, a protective diode is provided to add a function of preventing such electrostatic breakdown. In each of the above-described embodiments, it is described that the coaxial line (coaxial cable) or the flat cable is connected to the end portion of the strip line of the printed circuit board, but the present invention is not limited to this, and the printed circuit board is not limited to this. You may make it provide the function of the circuit board which processes a signal.

For example, the end portion of the strip line in the printed circuit board 3 shown in FIG. 5 is connected to the substrate 72 via the flat cagle 61, but a circuit portion (not shown) mounted on the substrate 72 is connected to the printed circuit board 3. For example, it may be provided on the back surface. In this case, the number of flat cables connecting the printed board 3 and the board 72 shown in FIG. 5 may be reduced or may be unnecessary.

Further, by connecting contacts for input signals and output signals to a common printed circuit board so as to conduct electricity through an electronic circuit mounted on the printed circuit board, coaxial lines are connected to the printed circuit board. It is also possible to make the structure unnecessary.

The substrate to which the base end side of the contact is connected is not limited to a rigid substrate using glass epoxy or the like, and a flexible substrate may be used. The present invention also includes a combination of the above-mentioned embodiments partially or in part.

[0047]

As described above, according to the present invention, since the base end side of the coaxial contact is attached to the flat board, the coaxial connector device can be manufactured by a simple soldering operation. The cost can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a coaxial connector device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the structure of a coaxial contact and a printed circuit board.

FIG. 3 is a perspective view showing a coaxial contact.

FIG. 4 is a perspective view showing a state in which a contact is connected to a printed board.

FIG. 5 is a perspective view showing the vicinity of a rear panel of an image processing apparatus in which the coaxial connector device of the first embodiment is applied to an electronic device.

FIG. 6 is an explanatory diagram showing a structure of a coaxial contact and a printed board according to a second embodiment of the present invention.

FIG. 7 is an exploded perspective view of a coaxial connector device according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing the structure of a coaxial contact and a printed circuit board according to the third embodiment.

FIG. 9 is an explanatory diagram showing a structure of a printed circuit board according to a fourth embodiment of the present invention.

FIG. 10 is a perspective view showing the vicinity of a rear panel of an image processing apparatus using a conventional coaxial connector device.

FIG. 11 is a diagram showing a structure of a connecting portion between a coaxial wire and a male-side coaxial contact in a conventional example.

FIG. 12 is a diagram showing a structure of a connecting portion between a coaxial wire and a female-side coaxial contact in a conventional example.

FIG. 13 is a view showing a state in which a male coaxial contact and a female coaxial contact are connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Coaxial connector device 2 ... Contact 3 ... Printed circuit board 4 ... Shell 6 ... Mounting hole 7 ... Screw 11 ... Cylindrical contact 12 ... Rod-shaped contact 11a, 12a ... Rod-shaped part 13 ... Insulator 14a, 15a ... Through hole 16a, 17a ... Strip line 18 ... Solder

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[Procedure amendment]

[Submission date] August 23, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

FIG. 10 shows the vicinity of a rear panel 71 of an image processing apparatus 70 using a conventional coaxial connector device. A plurality of coaxial lines 73 are provided on the substrate 72 in the image processing apparatus 70.
A board mounting connector 75 is connected to one end of a cable 74 consisting of, and a female connector 76 is connected to the other end of the cable 74. Shell 77 of the female connector 76 is adapted to be screwed to the rear panel 71, the male connector 80 which is provided from the rear of the rear panel 71 to the end of the cable 78 of a plurality of coaxial lines are connected It

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

Claims (1)

[Claims] 1. A contact member having a tubular conductor, and a rod-shaped conductor provided substantially parallel to a longitudinal direction of the tubular conductor at a substantially central position of the tubular conductor, and the tubular conductor. A conductor and a protrusion provided at one end of the body and the rod-shaped conductor are connected and fixed, respectively, and the cylindrical conductor and the rod-shaped conductor have a plane substrate that is substantially vertical. Coaxial connector device.