JP2002343471A - Cable connecting connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively resist against external noise and enhance electrical characteristics. SOLUTION: A support contact 3B for a ground has a projection part 3B-3 projecting to the outside of cover insulators 5A, 5B; and shells 15A, 15B covering the outer surface of the cover insulators 5A, 5B facing the projecting part 3B-3, and spring parts 15A-1, 15B-1, formed in the position corresponding to the projecting part 3B-3 and connecting to the projecting part 3B-3, are installed in the shells 15A, 15B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal line and a ground line (also called a drain line) of a cable.
And a contact.

[0002]

2. Description of the Related Art A conventional cable connector 10 shown in FIG. 6 comprises two strip-shaped cables 2, 2, a plurality of signal support contacts 3A, a plurality of ground support contacts 3B, and a signal support contact. 3A, ground support contact 3B, and cables 2, 2
Cover insulators 5A and 5B for holding the base plate in a clamped manner, and a plurality of base contacts 8A and 8B.
And a base insulator 11 holding base contacts 8A and 8B.

Each of the two cables 2 has a plurality of signal lines 2A as core lines for transmitting and receiving signals and a plurality of ground lines 2B as core lines for ground connection as core lines.

[0004] The signal support contact 3A has a support connecting portion 3A-1 extending from the distal end surface of the cover insulator 5A on the insertion side in the insertion direction X indicated by an arrow in FIG. It has a support holding portion 3A-2 that is held on the wall portion of the cover insulator 5A in the intersecting direction.

[0005] The ground support contact 3B extends from the end face on the insertion side of the cover insulator 5B in the insertion direction X
And a support holding portion 3B-2 for holding the cover insulator 5B in a direction crossing the insertion direction X.

The base contacts 8A and 8B are respectively connected to base holding portions 8A-1 and 8B-2 held by the base insulator 11 and base connection portions for sandwiching and connecting the signal line 2A and the ground line 2B, respectively. 8
A-2, 8B-2 and base connection parts 8A-2, 8B-2
And base contact portions 8A-3 and 8B-3 extending from the base holding portions 8A-1 and 8B-2 on the opposite side.

Each of the base contacts 8A and 8B is located inside the base insulator 11,
These are of the same shape. The base contacts 8A and 8B are generally called tuning-fork type contacts.

The base connection portions 8A-2 and 8B-2 have a bifurcated socket shape, and the signal line 2A, the ground line 2B, the signal support contact 3A, and the ground support contact 3B are formed at two points by strong contact force. It is sandwiched by the contact structure.

A plurality of signal support contacts 3A in which the signal lines 2A are wound in a folded shape are connected to the base connection portion 8A-2 by being inserted in the insertion direction X.
The base connection portion 8B-2 is connected by inserting a ground support contact 3B in which the ground wire 2B is wound in a folded shape in the insertion direction X.

The portion where the base contact portions 8A-3 and 8B-3 are located inside the base insulator 11 is a fitting portion 17 which forms a space in which a mating fitting portion of a mating connector (not shown) is fitted. I have. Base contact portion 8A-3, 8
B-3 comes in contact with the mating contact of the mating connector.

The two cables 2, 2 are obtained by superimposing one other cable 2 of the same type on the one cable 2 by inverting the cable up and down. The signal lines 2A and the ground lines 2B are alternately arranged also in the direction orthogonal to.

When the cable connector 10 is mated with the mating connector, the mating connector is mounted on a printed wiring board (not shown). When the cable connector 10 is fitted to the mating connector, the signal support contact 3A and the ground support contact 3B are electrically connected to the mating contact of the mating connector.

The above-described cable connector 10
Since the more detailed configuration and assembling method are disclosed in Japanese Patent Application Laid-Open No. 2000-150030, further description will be omitted.

[0014]

In the conventional cable connector, since the signal lines 2A and the ground lines 2B are alternately arranged, crosstalk hardly occurs, but a malfunction of a signal generated by external noise. No countermeasures were taken into account.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cable connecting connector which is resistant to external noise and which can improve the electrical characteristics of a connecting portion and a mating portion with a mating connector.

[0016]

According to the present invention, a cable having a signal line and a ground line, a signal support contact wound around the signal line, a ground support contact wound around the ground line, A cover insulator holding the signal support contact and the ground support contact, a plurality of base contacts connected one-to-one to each of the signal line and the ground line, and a base insulator holding the base contact, The base contact is
The signal line and the ground line are sandwiched by inserting the signal support contact wound around the signal line and the ground support contact wound around the ground line one by one in the insertion direction. In the cable connection connector having a base connection portion to be connected, the ground support contact has a protrusion protruding on an outer surface of the cover insulator, and is a conductive cover that covers at least the outer surface facing the protrusion. Having a shell of
A cable connector is obtained, wherein a spring portion connected to the projecting portion is formed.

[0017]

In the cable connector according to the present invention, the projecting portion is provided on the ground support contact, and a spring portion for connecting to the projecting portion is formed on the shell covering the outer surface of the cover insulator opposed to the projecting portion, thereby connecting the ground.

A ground support contact wound with a ground wire for making the shell and the projection conductive is as follows:
It protrudes onto the outer surface of the cover insulator, and the ground support contact and the spring portion formed on the shell come into contact with each other.

Therefore, in the cable connector,
Since the projection of the ground support contact and the shell are connected, and the shell and the mating shell of the mating connector are connected, it is possible to control the electrical characteristics of the connection part and the fitting part, and furthermore, noise from outside Configuration that is not easily affected by

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a cable connector according to the present invention will be described below. 1 to 3
Shows a cable connector in one embodiment. The same components as those described in the related art of FIG. 6 are denoted by the same reference numerals and described.

Referring to FIGS. 1 to 3, the cable connector 1 comprises two strip-shaped cables 2 and 2, a plurality of signal support contacts 3A, a plurality of ground support contacts 3B, and a signal Support contact 3
A, two support insulators 5A and 5B for clamping and supporting the ground support contact 3B and the cables 2 and 2, and a plurality of base contacts 8
A, 8B, the base insulator 11 holding the base contacts 8A, 8B, and the conductive shells 15A, 1A.
5B.

Each of the two cables 2 has a signal line 2A as a plurality of core lines for transmitting and receiving signals and a ground line 2 as a plurality of core lines for ground connection.
B.

The combination of the two cables 2 is shown in FIG.
As shown in FIG. 5, another cable 2 of the same type is superimposed on one cable 2 in an upside-down manner. , Signal lines 2A and ground lines 2B are alternately arranged. Therefore, the crosstalk is hardly generated between the two cables 2.

In this embodiment, the cables 2 and 2
The outer skins 2C, 2C adopt a UV curable resin or film. A number of holes 2D are formed at equal intervals in the outer cover 2C. Each hole 2D houses a signal line 2A and a ground line 2B. The signal line 2A is a dielectric 2
Coated with E. The ground line 2B and the dielectric 2E are covered with a shield 2F.

The signal support contact 3A extends from the distal end surface of the cover insulator 5A in the insertion direction (indicated by an arrow X in FIG. 1) along the insertion direction X onto the distal end surface. 1 and a support holding portion 3A-2 held on a wall portion of the cover insulator 5A in a direction intersecting the insertion direction X.

The ground support contact 3B is provided with a cover connecting portion 3B-1 extending along the insertion direction X from the distal end surface of the cover insulator 5B on the insertion side, and the cover insulator 5B in a direction crossing the insertion direction X. And a support holding part 3B-2 for holding the support.

As one specific example, the signal support contact 3A and the ground support contact 3B are formed in a long plate shape by stamping a conductive plate. On the plate-thick surface (the cut surface portion after the press punching) of the support connection portion 3A-1 of the signal support contact 3A, the signal line 2A is connected to the support connection portion 3A-1 of the signal support contact 3A at the tip of the support connection portion 3A-1. It is wound in a folded shape. A ground wire 2B is wound around the support connecting portion 3B-1 of the ground support contact 3B in a U-shape at the tip of the support connecting portion 3B-1 of the ground support contact 3B.

Further, the ground support contact 3
B has a projecting portion 3B-3 extending outward from the cover insulators 5A and 5B and projecting onto the outer surfaces of the cover insulators 5A and 5B.

The protruding portion 3B-3 is a portion extending from the support holding portion 3B-2 of the ground support contact 3B onto the outer surfaces of the cover insulators 5A and 5B. An opening 5A such as a small hole for projecting the projection 3B-3 is formed in the cover insulators 5A and 5B.
-2, 5B-2 are drilled. Further, the cover insulators 5A and 5B have a plurality of long plate-shaped partitions 5 extending in the insertion direction X from the respective end faces in the insertion direction X.
A-4 and 5B-4 are provided.

The plurality of partition walls 5A-4 and 5B-4 are arranged in a pitch direction perpendicular to the insertion direction X (direction indicated by arrow P in FIG. 2).
Are provided in parallel at a predetermined interval. That is, between the partition walls 5A-4 and 5B-4, the support connection portion 3A- of the signal support contact 3A around which the signal line 2A is wound.
1 and the support connection portions 3B-1 of the ground support contacts 3B around which the ground wires 2B are wound are provided in a state of being alternately inserted in the pitch direction P.

Each of the partition walls 5A-4 and 5B-4 located in the pitch direction P on both sides of the support connection portions 3A-1 and 3B-1 has a signal line 2A and a ground line 2B connected to the support connection portions 3A-1 and 3B. -1 so that the signal line 2A
And a surface wider than the surface on which the ground line 2B is located.

The base contacts 8A and 8B are connected to the base holders 8A-1 and 8B-2 held by the base insulator 11 inside the base insulator 11 by sandwiching the signal line 2A and the ground line 2B, respectively. Base connecting portions 8A-2 and 8B-2, and a base holding portion 8A- on the side opposite to the base connecting portions 8A-2 and 8B-2.
1, 8B-2, and base contact portions 8A-3, 8B-3 extending from each of the base contact portions. The base contacts 8A and 8B are generally called tuning-fork type contacts.

The base connecting portions 8A-2 and 8B-2 have a bifurcated socket shape, and connect the signal line 2A and the ground line 2B to the support connecting portion 3A-1 of the signal support contact 3A and the ground support contact. The support connection portion 3B-1 of 3B is sandwiched by a two-point contact structure by a strong contact force.

The base connection portion 8A-2 is connected by inserting the support connection portions 3A-1 of the plurality of signal support contacts 3A in which the signal lines 2A are wound back in a press-fit manner in the insertion direction X. . The base connection portion 8B-2 is connected by inserting the support connection portion 3B-1 of the ground support contact 3B in which the ground wire 2B is wound in a folded shape in the insertion direction X.

The portion where the base contact portions 8A-3 and 8B-3 are located inside the base insulator 11 is a fitting portion 17 which forms a space in which a mating fitting portion of a mating connector described later is fitted. I have.

The two shells 15A and 15B are
The pair of outer surfaces of the cover insulators 5A and 5B facing the B-3 and the pair of outer surfaces of the base insulator 11 are covered. The shells 15A and 15B have a projection 3B-
3, a plurality of first spring portions 15A-1, 15B-
1 and a plurality of second spring portions 15A-2 and 15B-2 connected to a mating shell of a mating connector described later are formed side by side in the pitch direction P. In addition, shell 15
A and 15B have first spring portions 15A-1 and 15B-1.
Are formed at positions corresponding to the protruding portions 3B-3, and the second spring portions 15A-2 and 15B-2 are formed at positions corresponding to the fitting portions 17 of the base insulator 11.

As one specific example, the first and second spring portions 15A-1, 15B-1, 15A- are formed on the shells 15A, 15B by stamping a conductive plate.
2, 15B-2 can be formed. The first spring portions 15A-1 and 15B-1 are formed by simply punching a conductive plate into a spring piece shape having elasticity. The second spring portions 15A-2 and 15B-2 can be formed by punching a conductive plate to form a spring piece shape having elasticity, and by slightly bending the outer surfaces of the shells 15A and 15B.

Next, the assembly of the cable connector 1 in this embodiment will be described. First, as shown in FIG. 2, the signal support contact 3A and the ground support contact 3B are incorporated into the cover insulators 5A and 5B. Base contact 8A, 8B
Is installed in the base insulator 11. At this time, the two cables 2 are overlapped and sandwiched between the upper and lower cover insulators 5A and 5B.
Also, the protruding portion 3B of the ground support contact 3B
-3 is an opening 5 of the cover insulators 5A and 5B.
A-2 and 5B-2 protrude onto the outer surface.

One end of each of the cables 2 is half-stripped in advance to expose the signal line 2A and the ground line 2B. Next, the signal line 2A is wrapped around the support connection portion 3A-1 of the signal support contact 3A, and the ground line 2B is wrapped around the support connection portion 3B-1 of the ground support contact 3B.

Each of the base connection portions 8A-2 and 8B-2 of the base contacts 8A and 8B has a signal support contact 3 around which the signal line 2A is wound.
By inserting the support connection portion 3A-1 of A and the support connection portion 3B-1 of the ground support contact 3B around which the ground wire 2B is wound one-to-one in the insertion direction X, the base contacts 8A and 8B, the signal The line 2A and the ground line 2B are collectively connected.

At this time, each of the base connecting portions 8A-2 and 8B-2 of the base contacts 8A and 8B has a groove-like shape formed between the partition walls 5A-4 and 5B-4 of the cover insulators 5A and 5B. Then, the base contacts 8A and 8B are connected to the signal line 2A and the ground line 2B in the pitch direction P without displacement.

The signal line 2A and the ground line 2B are
After being wound around the support connection portions 3A-1 and 3B-1, the remaining portion is cut.
Since it is disclosed in Japanese Patent Publication No. 00-150030, the description is omitted.

Next, shells 15A and 15B are provided on a pair of outer surfaces of the base contacts 8A and 8B and the base insulator 11. And the cover insulator 5
Two portions A and 5B (two portions on the opposite side to the base insulator 11) are fixed to the two spring screws 24 by screwing.

In the cable connector 1 thus assembled, the ground support contact 3
The protruding portion 3B-3 of B is in contact with the first spring portions 15A-1 and 15B-1 of the shells 15A and 15B while pressing them from the inside.

FIG. 5 shows the cable connector 1 and a mating connector to be fitted and connected to the cable connector 1.

Referring to FIG. 5, the mating connector 31 is
The opponent insulator 32 and the opponent insulator 3
1 has a conductive mating signal contact 33A, a mating ground contact 33B, and a conductive mating shell 35.

The mating insulator 32 has an insulator base 32a and a mating fitting portion 32b extending on one surface of the insulator base 32a. The mating fitting portion 32b has a shape that can be inserted into and removed from the fitting portion 17 of the base insulator 11.

The mating signal contacts 33A and the mating ground contacts 33B are connected to the base contact portions 8A-3 and 8B- when the mating portion 32b and the mating portion 17 are mated.
3, a contact portion 33A-1 for the signal of the other party which makes one-to-one contact with 3;
A mating ground contact portion 33B-1 and a mating signal terminal portion 33A-2 connected to the mating signal contact portion 33A-1.
And a mating ground terminal portion 33B-2 connected to the mating ground contact portion 33B-1.

The mating signal contact portion 33A-1 and the mating ground contact portion 33B-1 face each other toward the inner surface of the base insulator 11 in the fitting portion 17.
It protrudes from the outer surface of the mating fitting portion 32b.
Mating signal terminal 33A-2 and mating ground terminal 3
3B-2 extends outward from the side surface of the insulator base 32a.

The mating shell 35 covers the mating fitting portion 32b, and is held by the insulator base 32a so as to face the outer surfaces of the shells 15A and 15B during fitting. On the bottom surface of the insulator base 32a, a mating shell terminal 35a is provided. The mating shell terminal 35 a is connected to the mating shell 35.

The mating connector 31 is mounted on a printed wiring board (not shown), and a mating signal terminal section 33 is provided.
A-2 is connected to a signal pattern provided on the printed wiring board by soldering or the like. Further, the mating ground terminal 33B-2 is connected to a ground pattern provided on the printed wiring board by soldering or the like. The mating shell terminal portion 35a is connected to a ground pattern provided on the printed wiring board by soldering or the like.

When the cable connecting connector 1 is fitted to the mating connector 31, the base contact portion 8A-3 of the base contact 3A for signal and the mating signal contact portion 3
3A-1 comes into contact, and the base contact portion 8B-3 of the base contact 8B as a ground contacts the contact portion 33B-1 for the mating ground. At this time, shell 15A,
15B contacts the other shell 35 and is grounded.
At the same time, the shell 15A, 1
The second spring portions 15A-2 and 15B-2 of 5B press and contact.

Therefore, since the cable connector 1 and the mating connector 31 are electrically connected at their respective locations and become conductive, the cables 2 and 2 and the signal pattern and the ground pattern of the printed wiring board are conducted.

The number of cables 2 is not limited to two, but may be one or two or more. Furthermore, the cover insulators 5A and 5B may be formed in a box shape so that the two pieces are united together and hold the cables 2 and 2. Further, the shells 15A and 15B are formed in a tubular shape so as to cover four outer surfaces parallel to the insertion direction X, provided that the outer shape of the cover insulators 5A and 5B is, for example, a long cubic shape. Is also good.

[0055]

As described above, according to the cable connector of the present invention, the ground support contact is provided with the protruding portion protruding on the outer surface of the cover insulator, and the shell is formed with the spring portion for connecting the protruding portion. As a result, the electrical characteristics of the connection portion and the fitting portion can be controlled, and the configuration is less susceptible to external noise.

Therefore, it is possible to provide a cable connector that is resistant to external noise and that can improve the electrical characteristics of the connection portion and the fitting portion with the mating connector.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a cable connector according to the present invention.

FIG. 2 is a perspective view showing a state where the cover insulator and the cable shown in FIG. 1 are assembled.

FIG. 3 is a plan view of the entire cable connector shown in FIG. 1;

FIG. 4 is a front view showing an arrangement of cables of the cable connector shown in FIG. 1;

FIG. 5 is a sectional view showing the cable connector shown in FIG. 1 and a mating connector.

FIG. 6 is a cross-sectional view showing a conventional cable connector.

[Explanation of symbols]

 1, 10 Cable connector 2 Cable 2A Signal line 2B Ground line 3A Signal support contact 3A-1, 3B-1 Support connection part 3A-2, 3B-2 Support holding part 3B Ground support contact 3B-3 Projection part 5A , 5B Cover insulator 8A, 8B Base contact 8A-2, 8B-2 Base connecting part 8A-3, 8B-3 Base contact part 11 Base insulator 15A, 15B Shell 15A-1, 15B-1 First spring part 31 Side connector 33A Mating signal contact 33A 33B Mating ground contact 35 Mating shell

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E021 FA05 FA11 FA16 FB08 FB11 FB13 FC21 HA07 LA01 LA09 LA15 5E023 AA01 AA04 AA13 BB02 BB04 BB13 EE02 EE12 GG02 HH06 HH08 HH15 HH17

Claims (2)

[Claims] 1. A cable having a signal line and a ground line, a signal support contact wound around the signal line, a ground support contact wound around the ground line, the signal support contact and the ground support contact , A plurality of base contacts connected one-to-one to each of the signal line and the ground line, and a base insulator holding the base contact, wherein the base contact winds the signal line. A base connecting portion that sandwiches and connects each of the signal line and the ground line by inserting each of the signal support contact and the ground support contact wound with the ground line in a one-to-one insertion direction; Have In the cable connection connector, the ground support contact has a protruding portion that protrudes onto the outer surface of the cover insulator, and has a conductive shell that covers at least the outer surface facing the protruding portion. A cable connector, wherein a spring portion connected to the projecting portion is formed. 2. The cable connector according to claim 1, wherein each of the signal support contact and the ground support contact extends from a distal end surface of the cover insulator in the insertion direction along the insertion direction. And a support connection portion connected to the base connection portion via the signal line or the ground line, and a support holding portion for holding the cover insulator in a direction crossing the insertion direction, and the projecting portion is A portion extending from the support holding portion of the ground support contact onto the outer surface of the cover insulator, and the cover insulator is provided with an opening for projecting the projecting portion onto the outer surface. A cable connector characterized by the above-mentioned.