JP2002319457A - Connecting structure of shield connector and its assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure of a shield connector wherein an improvement of a terminal processing of the shield connector and its size reduction are possible. SOLUTION: An inner conductor terminal 4 is installed via an insulation terminal insertion member 3 in order that a pressure-contact blade 4a of the inner conductor terminal 4 faces in a shaft direction at a cylindrical outer conductor terminal 2 where an outer casing 6e of a shield cable 6 and a pressure-contact part 2f to pressure-contact and fix a shield braided wire 6d are integrally installed. A retaining member 5 to bendingly retain a connecting terminal of a signal wire 6a is loaded to its outer conductor terminal 2 and faces a terminal insertion member 3 to be pressure-contacted and connected by bendingly retained bending part 6f of the signal wire 6a and by a pressure- contact blade 4d of the inner conductor terminal 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection of a cable such as a wire harness used for an electric device of an automobile or the like, and more particularly to a connection structure of a shield connector and a method of assembling the same in pressure connection of a shielded cable. .

[0002]

2. Description of the Related Art In recent years, electric signals transmitted to a control printed circuit board on which electronic parts and ICs (integrated circuits) incorporated in an electric device of a vehicle such as a car navigation system are mounted at higher speed (higher frequency). In addition, the pattern of the printed circuit board is also dense and dense. In general, a high-frequency compatible shielded cable is used to transmit such high-frequency electric signals.
There is also a growing demand for a shield connector for relay connection of this shielded cable, which is downsized for high frequencies.

Conventionally, such a shield connector has an inner conductor terminal for transmitting a high-frequency signal, and an outer conductor terminal for electromagnetically shielding the inner conductor terminal. Are electrically connected individually to the shielded wires of the shielded cable and the outer conductor terminals. In particular, as for a connection method by pressure contact between the signal line and the inner conductor terminal, there is a method disclosed in Japanese Patent Application Laid-Open No. H11-224723.

As shown in FIG. 11, an inner conductor terminal 43 (in this case, a male terminal) having a pressure contact piece 43a is attached to a cylindrical outer conductor terminal 41 having an open front and rear end via an insulating block 42. The signal line 44a, which is exposed by peeling the end portion of the shielded cable 44, is connected to the holding block 45.
Is inserted into and held in the signal line insertion groove 45a. The signal line 44a of the signal line insertion groove 45a is press-connected to the press-contact pieces 43a of the inner conductor terminal 43 by superposing the holding block 45 holding the signal line 44a from above the insulating block 42. In order to overlap the holding block 45 with the insulating block 42 from above, the upper surface of the outer conductor terminal 41 is opened substantially from the center to the rear end. A shield cover 46 is attached so as to cover this opening, and the shielding performance is maintained.

[0005] A pair of shield crimping pieces 41a integrally provided at the rear portion of the outer conductor terminal 41 crimps the exposed shield wire 44b, and a pair of subsequent crimping pieces 41b is formed at the end of the shield cable 44. The shielded cable 44 and the shielded connector 40 are connected by crimping the jacket.

[0006]

However, in such a connection structure in which the signal line of the shielded cable and the inner conductor terminal of the shielded connector are press-contacted, the press-contact piece is erected perpendicularly to the axial direction of the connector. Because it is a configuration, a space for connecting the signal line to the pressure contact piece from above is required, and further, in order to ensure connection reliability with the signal line, usually a plurality of pressure contact blades are provided, in which case,
Since they are provided side by side in the axial direction of the connector, the length is increased accordingly. Therefore, the whole connector becomes longer,
There was a problem that miniaturization was hindered.

Also, in this case, since the rear half of the upper surface of the outer conductor terminal is largely opened as a space for press-connecting from above, it is necessary to secure the shielding property.
It is necessary to cover the opening with a shield cover provided separately. For this reason, the number of parts increases, and there is a problem that the workability of assembling is not good.

SUMMARY OF THE INVENTION An object of the present invention is to provide a shielded connector connection structure which has good terminal workability of the shielded connector and can be reduced in size, and a method of assembling the same.

[0009]

According to the present invention, there is provided a shield connector connection structure according to the present invention, comprising: an insulating bending holding member for bending and holding a signal line exposed from a terminal portion of a shielded cable; An inner conductor terminal having a press contact portion to which the signal line is press contacted, an insulating terminal insertion member for accommodating the inner conductor terminal so that the press contact portion protrudes in the press contact direction, and a cylinder for accommodating the terminal insertion member A housing having a shape of a housing, and an outer conductor terminal having an open mounting chamber for mounting the holding member, wherein the holding member mounted in the mounting chamber of the outer conductor terminal and the terminal housed in the housing chamber. When the housing members are abutted against each other, the press-contact portion of the inner conductor terminal is pressed against the bent and held signal line.

According to the connection structure of the shielded connector of the present invention having the above structure, the insulating holding member for bending and holding the signal line of the shielded cable is mounted in the mounting chamber with the outer conductor terminal opened, and the press contact portion is formed. An insulative terminal insertion member for accommodating the inner conductor terminal having the pressure contact portion protruding in the pressure contact direction is also accommodated in the cylindrical accommodation chamber of the outer conductor terminal, and the terminal accommodated in the attached holding member. When the insertion member is abutted, the signal wire bent and held by the holding member and the pressure contact portion of the inner conductor terminal housed in the terminal insertion member are pressed against each other. It is possible to press-connect in a short connection space,
The size can be reduced and the workability of terminal processing can be improved.

In this case, in order to secure connection reliability, even if a plurality of press-contact portions are provided on the inner conductor terminal so as to increase the number of contact portions with the signal lines, the press-contact portions are increased without lengthening the connector. Reliability can be improved. In the conventional art, the connector becomes longer by the increased pressure contact portion.

Further, in the prior art, since the pressure connection is made perpendicularly to the axial direction of the connector, it is necessary to make a large opening substantially in the latter half of the upper surface of the outer conductor terminal as a space, and furthermore, to secure the shielding property. Therefore, according to the connection structure of the shielded connector according to the present invention, the insulating holding member that bends and holds the signal line is provided with the opening of the outer conductor terminal. Since it is configured to be mounted in the mounting room, the opening can be made small, and the shielding performance can be ensured even if it is not closed.

Further, since the pressure contact portion of the inner conductor terminal, which has been conventionally formed in the vertical direction, is formed in the axial direction due to the structure in which the inner conductor terminal is press-contacted to the bent and held signal line, the structure of the inner conductor terminal is simplified. And the manufacturing cost of the inner conductor terminal generally made of a conductive plate material can be reduced.

In this case, if the holding member is formed with a holding groove for bending and holding the signal line connection terminal of the cable, the connection terminal of the signal line is bent. Easy to hold.

According to a third aspect of the present invention, when the contact surface of the holding member is provided with a groove for releasing the press-contact portion of the inner conductor terminal, the terminal insertion member is provided on the holding member, and the outer conductor is provided on the outer conductor. They can be joined together without any gap in the terminal.

Further, the outer conductor terminal is provided with a guide piece for guiding the mounting of the holding member, and the holding member has a guide groove into which the guide piece is inserted. According to the configuration provided, mounting and positioning of the holding member to the outer conductor terminal can be performed easily and smoothly.

According to a fifth aspect of the present invention, when the outer conductor terminal is configured such that a lid for closing the mounting opening of the holding member is integrally provided via a hinge, Since the mounting opening that is open to the outside can be closed, the shielding performance is further improved, and a member such as a shield cover that closes the opening for pressure contact connection like the outer conductor terminal of the prior art is also required. Not so many parts
Low cost.

According to a sixth aspect of the present invention, if the pressure contact portion of the inner conductor terminal is provided at least two in the bending direction of the signal line connection terminal of the cable, the portion that contacts and moves with the signal line is provided. , The connection reliability is improved.

According to the method for assembling a shielded connector according to the present invention, the inner conductor terminal having the press-contact portion for press-connecting the signal line exposed from the terminal portion of the shielded cable is connected to the terminal insertion member. The shielded cable is housed, the terminal insertion member is housed in the cylindrical housing chamber of the outer conductor terminal and temporarily locked, and the signal line exposed from the terminal portion of the shielded cable is provided on the front side of the insulating holding member. The inner conductor terminal is mounted in a mounting chamber with the outer conductor terminal opened in a state where the inner conductor terminal is bent and held in the holding groove to be formed, and the terminal insertion member housed in the housing chamber is further pushed into the mounting chamber side. The signal line portion bent and held in the holding groove is connected to the press contact portion by press contact.

According to the above-described method of assembling the shield connector, the insulating holding member, which bends and holds the signal line of the shielded cable, is mounted in the mounting chamber having the outer conductor terminal opened, and the inner conductor terminal having the press-contact portion is connected. The insulating terminal insertion member housed so that the press-contact portion protrudes in the press-contact direction is also housed in the tubular housing chamber of the outer conductor terminal, temporarily locked, and housed on the mounted holding member side. If you push the terminal insertion member further,
Since the signal wire bent and held by the holding member and the press-contact portion of the inner conductor terminal accommodated in the terminal insertion member are press-contacted, the step of press-contacting the press-contact portion of the inner conductor terminal to the signal line is a terminal insertion member. Is performed in the process of pushing. That is,
The process itself of accommodating the terminal insertion member in the outer conductor terminal, which has been performed conventionally, is also the process of press-connecting, so that the process dedicated to press-welding, which was required in the prior art, becomes unnecessary.

Furthermore, since the terminal insertion member is housed in the cylindrical housing chamber of the outer conductor terminal and is temporarily locked, and is further pushed into the mounting chamber side at the time of press-contact, the outer conductor terminal is inserted before the press-connection. Workability is good because the storage chamber can be stored in a temporarily locked state.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings. The shield connector according to the present embodiment is applied to a shielded cable such as a single-wire coaxial cable or a so-called multi-core shielded cable having a large number of signal lines. A case where the present invention is applied to a core shielded cable will be described. FIG. 1 shows an exploded perspective view of the shielded connector 1 according to the first embodiment, and FIG. 2 shows an example of an assembling procedure of the shielded connector 1 of FIG.

As shown in FIG. 1, the shield connector 1 connected to the terminal portion of the shield cable 6 includes an outer conductor terminal 2, a terminal insertion member 3, an inner conductor terminal 4, and a holding member 5.
It is composed of A high-frequency signal is transmitted to the inner conductor terminal 4, and the outer conductor terminal 2 electromagnetically shields the inner conductor terminal 4 while covering the periphery thereof.

The inner conductor terminal 4 is connected to the conductor 6b of the signal line 6a of the shielded cable 6 to transmit a high frequency signal. As shown in FIG. 1, the conductive plate material is formed by bending and opening upward, and contacts an inner conductor terminal provided in a mating connector (not shown) to transfer an electric signal. The inner conductor terminal 4 has a so-called female terminal shape, and elastic contact pieces 4b, 4b extending forward from upright portions 4a, 4a rising from the left and right of the bottom portion 4g are bent inward. Is formed. A distal end portion of the inner conductor terminal, which is a male terminal in this case, which is a male terminal, is inserted into the inside of the curved elastic contact pieces 4b, 4b, and elastically contacts the inserted distal end portion, thereby forming a mating connector. With the inner conductor terminal of

An opening 4c is provided at the front end of the inner conductor terminal 4, and a press-contact portion 4d which press-connects to the signal line 6a of the shielded cable 6 extends at the rear end of the upright portions 4a, 4a. The press contact portion 4d has a pair of press contact blades 4e, 4e. The pressing blades 4e, 4e
Are capable of breaking the insulating inner cover 6c of the signal line 6a of the shielded cable 6 and contacting the inner conductor 6b. Also,
The upright portion 4a is provided with a protruding piece 4f which is press-fitted into an insertion hole 3a in the terminal insertion member 3 described later, and protrudes upward.

Terminal insertion member 3 for accommodating inner conductor terminal 4
Is for insulating between the conductor terminals of the inner conductor terminal 4 and the outer conductor terminal 2 and is formed of a resin insulating member having a predetermined dielectric constant. The outer diameter of the main body of the terminal insertion member 3 is formed to be equal to or slightly smaller than the inner diameter of a housing chamber 2d provided in the outer conductor terminal 2 described later. Further, insertion holes 3a, 3a penetrating back and forth are provided, and the inner conductor terminal 4 is inserted and fixed from behind the insertion hole 3a.

The front end of the terminal insertion member 3 has a flange 3b.
And abuts on the open front end of the outer conductor terminal 2. A temporary engaging projection 3c is formed at the rear side of the outer conductor terminal 2 so as to engage with a temporary engaging hole 2a also provided at the front of the side surface.
Can be held. On the rear side of the upper surface, there is formed a main engaging recess 3d which engages with a main engaging piece 2b provided on the upper surface of the outer conductor terminal 2, and at this main engaging position, the terminal insertion member 3 It is irremovably housed and fixed in the terminal 2.

The outer conductor terminal 2 is connected to the shield braided wire 6d of the shielded cable 6 to cover the inner conductor terminal 4 and electromagnetically shield it. The outer conductor terminal 2 is provided with a hollow main body 2c which is formed by bending a conductive plate material and opening back and forth, and a terminal insertion member 3 is housed in a housing chamber 2d inside the main body 2c. It is possible. The outer conductor terminal of the mating connector (not shown) is fitted into the opening at the front end of the main body 2c from the outside. Temporary engagement holes 2a, 2a are provided at the front of the side surface, and main engagement pieces 2b are provided at the rear of the upper surface.
At the temporary engagement position and the full engagement position.

A mounting chamber 2 is provided behind the upper surface of the main body 2c as a space for mounting a holding member 3 described later.
e is provided to open upward. Further, a crimping portion 2f extending rearward is provided from the mounting chamber 2e. A pair of left and right braided wire crimping pieces 2g, 2g for crimping and fixing the shield braided wire 6d of the shielded cable 6 to be mounted is provided on the front side of the crimping portion 2f, and an insulating jacket 6e is provided on the rear side.
Is formed with a pair of left and right outer crimping pieces 2h, 2h for crimping and fixing. The shield braided wire 6d is bonded to the braided wire crimping piece 2
The outer conductor terminal 2 is electrically connected to the shield braided wire 6d by crimping and fixing with g and 2g.

The holding member 5, like the terminal insertion member 3 described above, is also used for insulating the conductor terminals of the inner conductor terminal 4 and the outer conductor terminal 2 from each other, and is made of resin having a predetermined dielectric constant. It is formed in a substantially cubic shape by an insulating member. The holding member 5 has an introduction groove 5a into which a part of the exposed signal line 6a of the shielded cable 6 is press-fitted, and a holding groove into which a bent portion 6f bent right and left at the end of the signal line 6a is press-fitted. 5b is recessed. The introduction groove 5a is formed over the front and rear part of the upper part, and the holding groove 5b recessed in the left and right direction on the front surface communicates with the introduction groove 5a from the front center. In the holding groove 5b, a press-contact blade escape groove 5c for inserting the press-contact blades 4e, 4e formed on the press-contact portion 4d of the inner conductor terminal 4 so as not to interfere with each other at the time of pressing is orthogonal to the holding groove 5b. Thus, it is recessed so as to be deeper than the holding groove 5b.

Next, a procedure for assembling the shield connector 1 having the above-described configuration will be described with reference to FIG.
First, the inner conductor terminals 4 and 4 are inserted into the insertion holes 3a and 3a of the terminal insertion member 3 from behind, respectively, and fixed. At this time, the press-contact portion 4d of the inner conductor terminal 4 is in a state of protruding rearward from the rear end surface of the insertion hole 3a. Then, the terminal insertion member 3 to which the inner conductor terminal 4 is fixed is inserted from the front into the accommodation chamber 2d of the main body 2c provided on the outer conductor terminal 2, and is held at the temporary engagement position in the middle (FIG. 2). (A)). As described above, when the terminal insertion member 3 is temporarily locked in the cylindrical housing chamber 2d of the outer conductor terminal 2, the terminal insertion member 3 is housed in the housing room of the outer conductor terminal in a temporarily locked state before the crimp connection. Therefore, workability is improved without falling off.

With respect to the shielded cable 6, the insulation jacket 6e at the terminal portion is peeled off, and the signal wire 6a and the shield braided wire 6d having appropriate lengths are exposed. The intermediate portions of the two signal lines 6a, 6a of the stripped shielded cable 6 are press-fitted and fixed to the introduction grooves 5a of the holding member 5, and the bent portions 6f, 6f obtained by bending the terminal portions left and right are formed in the holding grooves. 5b,
5b (see FIG. 2A).

Then, the holding member 3 fixed to the terminal portion of the shielded cable 6 is attached to the mounting chamber 2 of the outer conductor terminal 2.
e is installed from above. At this time, the exposed shield braided wire 6d and the insulating jacket 6e are respectively connected to the crimping portion 2
f, and are placed at the positions where the braided wire crimping pieces 2g and the jacket crimping pieces 2h are formed (see FIG. 2B).

From this state, the terminal insertion member 3 is further pushed in from the temporary engagement position. The terminal insertion member 3 pushed in from the temporary engagement position is released from the temporary engagement and moves rearward.
The terminal insertion member 3 is butted against the holding member 5.

When butted against each other, the press contact portion 4d of the inner conductor terminal 4 projecting from the rear surface of the terminal insertion member 3
Are respectively inserted into the press contact blade escape grooves 5c. By the press contact blades 4e, 4e formed on the inserted press contact portion 4d,
The insulating inner cover 6c of the bent portion 6f of the held signal line 6a is broken, and the internal conductor 6b and the press contact blade 4e are brought into contact with each other to be electrically connected. At this time, the main engagement recess 3d of the terminal insertion member 3 engages with the main engagement piece 2b of the outer conductor terminal 2, and the flange 3b of the terminal insertion member 3 is connected to the front end of the main body 2c of the outer conductor terminal 2. The terminal insertion member 3 is fixed to the opening so that it cannot be removed (see FIG. 2C).

Thereafter, the shield braided wire 6d is formed by the braided wire crimping piece 2g of the crimping portion 2f of the outer conductor terminal 2 and the jacket crimping piece 2h.
And the insulating jacket 6e are fixed by crimping. Thereby, the shielded cable 6 is fixed to the crimping portion 2f, and the outer conductor terminal 2 and the shield braided wire 6d are electrically connected (see FIG. 2C).

As described above, the outer conductor terminal 2, the inner conductor terminal 4, the terminal insertion member 3, the holding member 5, the shield cable 6
Of the shielded cable 6 bends and holds the signal line of the shielded cable 6, and the bent portion 6
f and the press-contact portion 4d provided on the inner conductor terminal 4 are pressed against each other in the axial direction, so that the press-contact direction is the same as the axial direction of the cable. Shorter. That is, the entire length of the connector can be made shorter than before, and the size can be reduced.

Further, in the case where a plurality of press-contact portions of the inner conductor terminal are provided in order to ensure connection reliability, unlike the prior art, the connector does not become longer by the increased press-contact portion, and Can be increased.

In the prior art, the shield connector 1 of this configuration can reduce the opening area of a large opening substantially in the latter half of the upper surface of the outer conductor terminal as a space for pressure contact connection. Performance can also be ensured.

Furthermore, according to the inner conductor terminal 4 having the press contact blades 4e as described above, the press contact blades conventionally formed in the vertical direction are formed in the axial direction, so that the structure is simplified. And the manufacturing cost of the inner conductor terminal generally made of a conductive plate material can be reduced.

Further, the step of pressing the terminal insertion member 3 in the press contacting step, and the step of accommodating the terminal insertion member in the outer conductor terminal, which has been conventionally performed, itself is also the step of press contact connection. Eliminates the need for specialized processes for pressure welding, which required technology.

Next, a shield connector 11 according to a second embodiment will be described with reference to FIGS. The shield connector 11 is provided with a mounting chamber 2e for the outer conductor terminal 2.
The guide pieces 12, 12 cut and raised inside and the guide grooves 5 d, 5 d recessed in the side surface of the holding member 5 are different from the shield connector 1 of the first embodiment, and have the same configuration. Are denoted by the same reference numerals, description thereof will be omitted, and different points will be mainly described.

As shown, the guide pieces 12, 12
It is cut and raised inward from the left and right side walls of the mounting chamber 2e. Guide grooves 13, 13 are formed in the left and right side surfaces of the holding member 5 corresponding to the guide pieces 12, 12, respectively. When the holding member 5 is mounted in the mounting chamber 2e of the outer conductor terminal 2, Since the guide piece 12 is inserted into the guide groove 13, the guide piece 12 is positioned and mounted, and after mounting, the movement of the guide piece 12 is restricted (see FIGS. 4A and 4B).

Thus, the holding member 5 is connected to the outer conductor terminal 2.
It is easy to perform positioning and mounting in the mounting chamber 2e of
After mounting, the positioning is fixed in the mounting chamber 2e.
The press-fitting connection by pushing the front terminal insertion member 3 and the crimping of the rear crimping pieces 2g and 2h by crimping described above in the embodiment can be easily performed (see FIG. 4C).

Next, a shield connector 21 according to a third embodiment will be described with reference to FIGS. The shield connector 21 is provided with a main body 2 c of the outer conductor terminal 2.
The shield lid 22 provided at the rear end of the upper surface is different from the shield connector 11 of the second embodiment, and the same components are denoted by the same reference numerals and description thereof will be omitted. explain.

As shown in the figure, the shielding lid 22 is provided to cover the mounting chamber 2e which is opened to cover the upper surface of the holding member 5 after being mounted in the mounting chamber 2e. And is provided via a hinge 22a, and has a substantially square shape. Engaging claws 22b, 22b are provided on the left and right ends of the shielding lid 22, and when closed,
Engagement holes 23, 2 on the left and right side walls of mounting chamber 2e of outer conductor terminal 2.
3 is engaged. In this case, the above-described guide pieces 12, 12 are provided by being cut and raised from positions below the engagement holes 23, 23.

When the shielding lid 22 is folded backward and closed, the upper surface of the holding member 5 positioned and mounted in the mounting chamber 2e of the outer conductor terminal 2 is covered by closing the shielding lid 22 (FIG. 6 ( a) to (c)). Thus, the mounting portion opened for mounting can be closed, so that the signal line 6 can be closed.
The shielding property of the connection terminal portion a is improved. Furthermore, since it is provided integrally with the outer conductor terminal 2, unlike the outer conductor terminal of the prior art, there is no need to separately provide and mount a shield cover for closing the opening for press-connecting. The shielding property can be improved by a simple and simple process of merely closing.

Next, a shield connector 31 according to a fourth embodiment will be described with reference to FIGS. This shield connector 31 is different from the shield connector 21 of the third embodiment in the configuration of the inner conductor terminal 32 and the holding member 33 as shown in the figure, and the same configuration is denoted by the same reference numeral. Are omitted, and different points will be mainly described.

As shown in FIG. 7, the inner conductor terminal 32
The shape of the press contact portion 32a is different from that of the inner conductor terminal 4 described above.
The press contact portion 32a extends rearward from the bottom 4g of the inner conductor terminal 32, and press contact blades 32b, 32
b is formed horizontally. As described above, when the press contact portion 32a of the inner conductor terminal 32 is inserted into the terminal insertion member 3, the press contact portion 32a projects rearward from the rear end face of the insertion hole 3a. In this case, the inner conductor terminal 32 has one press contact portion 32a, but may have a shape having two press contact portions.

As described above, the press contact portion 32a of the inner conductor terminal 32
Are formed horizontally, holding grooves 33a for bending and holding the signal lines 6a, 6a are provided on the front side of the holding member 33.
33a is recessed in the vertical direction. In the holding groove 33a, a press-contact blade escape groove 33d into which the press-contact blades 32b, 32b formed in the press-contact portion 32a of the inner conductor terminal 32 are inserted at the time of press-contact connection is orthogonal to the holding groove 33a. It is recessed more deeply.

Introducing grooves 33b are formed on the upper surface of the holding member 33 in such a manner as to communicate with the vertically long holding grooves 33a, 33a, respectively. The insertion groove 33b is also provided with a press-fit groove 33c into which the exposed end of the shield braided wire 6d is press-fitted.

In order for the holding member 33 to bend and hold the signal line 6a of the shielded cable 6, as shown in FIG. 8 (a), the signal line 6a is held from above the holding member 33 with the holding groove 33a facing upward. 6a, 6a, and then the holding groove 3
3a is rotated in the direction of arrow F so as to face the front surface, and the remaining portions of the signal lines 6a, 6a are pressed into the introduction grooves 33b, 33b, and the end portion of the shield braided wire 6d is pressed into the press-fit groove 33c, and held. Thus, a bent portion 6f for pressure connection is formed (see FIG. 8B).

In this case, the guide projections 33e as shown in FIG.
The signal lines 6a, 6a may be provided so as to protrude between them to facilitate press-fitting. Further, if such a guide projection 33e is provided so as to protrude, even if the signal lines 6a, 6a temporarily held are separated from each other, a short circuit is prevented. Further, if the tapered guide surfaces 33f, 33f are formed as shown in the figure, press-fitting can be further facilitated, and thus the process of press-fitting and holding the signal line 6a in the holding groove 33a can be easily automated by a machine.

Thereafter, as shown in FIG. 9, the holding member 33 fixed to the end of the shielded cable 6 is mounted in the mounting chamber 2e of the outer conductor terminal 2 from above. The assembling process after the mounting is the same as described above, and the description is omitted.

Next, an example of automation of assembling by a machine applied to the assembling of the shielded connectors of the above-described first to fourth embodiments will be described with reference to FIGS. 5 and 6 according to the third embodiment. This will be described using the shield connector 21.

As shown in FIG. 10, the shield braided wire 6d and the insulating sheath 6e are crimped and fixed by the braided wire crimping piece 2g of the crimping portion 2f provided on the outer conductor terminal 2 and the sheath crimping piece 2h. The jigs 51 and 52 used for crimping are installed on the upper side and the lower side, respectively. A mounting jig 53 is installed above the mounting chamber 2 e of the outer conductor terminal 2, and a shielding lid closing jig 54 is installed in front of the shielding lid 22 before closing so as to face the shielding lid 22. ing. In addition, a pressing jig 55 is installed on the front side of the terminal insertion member 3 in the temporarily locked state.

As shown in the figure, the terminal insertion member 3 into which the inner conductor terminal 4 is press-fitted and fixed in advance is inserted into the accommodation chamber 2d of the outer conductor terminal 2 from the front, and is held at a temporary engagement position in the middle. .

The holding member 5 fixed to the terminal portion of the shielded cable 6 is moved to a position in front of the shielding lid 22 above the mounting chamber 2e of the outer conductor terminal 2 (arrow A in the figure). Mounting room 2
The mounting jig 53 moves downward from above to push the holding member 5 into the mounting chamber 2e (arrow B in the figure). At this time,
Exposed shield braided wire 6d and insulation jacket 6e
Also, the braided wire crimping piece 2g on the crimping portion 2f and the outer crimping piece 2h
Is placed at the position where is formed.

Next, the jigs 51 and 52 for crimping are operated,
The shield braided wire 6d and the insulating jacket 6e are crimped and fixed by the braided wire crimping piece 2g of the crimping portion 2f and the jacket crimping piece 2h (arrow C in the figure). The shielded cable 6 is fixed to the crimp portion 2f, and the outer conductor terminal 2 and the shield braided wire 6d are electrically connected.

Then, the shielding lid closing jig 54 operates to close the shielding lid 22 (arrow D in the figure). Finally, the pressure welding jig 55 is operated, and the terminal insertion member 3 is pushed in from the temporary engagement position (arrow E in the figure). The pressed-in portion 4 d of the pushed-in inner conductor terminal 4 is pressed-connected to the bent portion 6 f of the signal line 6 a held by the holding member 5. As described above, the shield connector 21 is configured to be easily assembled by a machine, but it goes without saying that the shield connector according to the other embodiments can be assembled in the same process.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention. For example, in the above embodiment, the description has been made using the inner conductor terminal having a female terminal shape, but it is needless to say that the present invention can be applied to a male terminal shape.

Although the introduction groove formed in the holding member has a shape in which the upper portion is opened, it may be an introduction hole which is opened back and forth so that a signal line can be inserted. in short,
In order to make the press-contact direction the same as the cable axial direction, the press-contact blade of the inner conductor terminal press-contact portion is formed so as to be parallel to the axial direction, and the terminal part of the signal line exposed from the shielded cable is connected to the shaft. Any structure may be used as long as it is bent so as to intersect with the direction, and the bent portion and the inner conductor terminal press-contact portion are pressed against each other in the axial direction.

[0063]

According to the shield connector connection structure of the present invention, the terminal portion of the signal line of the shielded cable is bent and held, and the bent portion and the press contact portion provided on the inner conductor terminal are axially moved. The pressure contact connection is made by facing each other, so that it is possible to press-connect in a short connection space with respect to the length of the connector in the axial direction. Miniaturization is also possible, and it is easy to automate assembly by a machine.

In order to secure connection reliability, even if a plurality of press-contact portions are provided on the inner conductor terminal so as to increase the number of contact portions with the signal lines, the press-contact portions are increased without increasing the length of the connector. Performance can be improved.

In the prior art, since the pressure connection is made perpendicularly to the axial direction of the connector, it is necessary to make a large opening substantially in the latter half of the upper surface of the outer conductor terminal as a space, and furthermore, to secure the shielding property. Therefore, according to the connection structure of the shielded connector according to the present invention, the insulating holding member that bends and holds the signal line is provided with the opening of the outer conductor terminal. Since it is configured to be mounted in the mounting room, the opening can be made small, and the shielding performance can be ensured even if it is not closed.

Further, since the pressure contact portion of the inner conductor terminal, which is conventionally formed in the vertical direction, is formed in the axial direction by adopting a structure in which the signal line is pressed against the bent and held signal line, the structure of the inner conductor terminal is simplified. And the manufacturing cost of the inner conductor terminal generally made of a conductive plate material can be reduced.

In this case, if the shield cover is further provided integrally with the outer conductor terminal, a shield cover for closing the opening for press-contact connection is separately provided and attached as in the case of the outer conductor terminal of the prior art. Since there is no problem, the number of parts is small, the shielding property can be further improved by a simple process of merely closing, and the cost is low.

According to the method of assembling the shield connector according to the present invention, the step of pressing the press-contact portion of the inner conductor terminal to the signal line is performed by the step of pressing the terminal insertion member. Since the process of accommodating the terminal insertion member in the outer conductor terminal itself also serves as a press-connecting process, a process dedicated to press-contact, which is required in the related art, becomes unnecessary.

Further, since the terminal insertion member is housed in the cylindrical housing chamber of the outer conductor terminal and is temporarily locked, and is further pushed into the mounting chamber at the time of press-contact, the outer conductor terminal is inserted before the press-connection. Workability is good because the storage chamber can be stored in a temporarily locked state.

[Brief description of the drawings]

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

FIG. 2 is a view showing a procedure for assembling the shield connector shown in FIG. 1;

FIG. 3 is an exploded perspective view of a shielded connector according to a second embodiment of the present invention.

FIG. 4 is a view showing a procedure for assembling the shield connector shown in FIG. 3;

FIG. 5 is an exploded perspective view of a shielded connector according to a third embodiment of the present invention.

6 is a diagram showing a procedure for assembling the shield connector shown in FIG. 5;

FIG. 7 is an exploded perspective view of a shielded connector according to a fourth embodiment of the present invention.

FIG. 8 is a view showing a step of bending and holding the signal line shown in FIG. 7;

FIG. 9 is a diagram showing a procedure for assembling the shield connector shown in FIG. 7;

FIG. 10 is a diagram illustrating an example of assembly automation by a machine applied to the assembly of the shielded connectors of the first to fourth embodiments.

FIG. 11 is a partial cross-sectional view showing a connection structure of a shield connector generally conventionally known.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield connector 2 Outer conductor terminal 3 Terminal insertion member 4 Inner conductor terminal 4d Pressure contact part 4e Pressure contact blade 5 Holding member 5a Introduction groove 5b Holding groove 5c Pressure contact blade escape groove 6 Shield cable 6a Signal wire 6d Shield braided wire

Continued on the front page (72) Inventor Nobuaki Kojima 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in the Auto Network Engineering Laboratory Co., Ltd. 5E012 AA04 AA23 AA41 AA42 AA44 5E021 FA03 FA09 FA16 FB11 FB20 5E051 JA07 JB10

Claims (7)

[Claims] An insulated bending and holding member for bending and holding a signal line exposed from a terminal portion of a shielded cable, an inner conductor terminal having a press contact portion to which the signal line is press contacted,
An insulating terminal insertion member for accommodating the inner conductor terminal so that the press-contact portion protrudes in the press-contact direction; a tubular accommodation chamber for accommodating the terminal insertion member; and an open mounting chamber for mounting the holding member. When the terminal accommodating member accommodated in the accommodating chamber is abutted against the holding member attached to the accommodating chamber of the outer conductor terminal, the signal line bent and held is formed. A press-contact portion of the inner conductor terminal is pressed against the inner conductor terminal. 2. The connection structure for a shield connector according to claim 1, wherein the holding member has a holding groove for bending and holding the signal line. 3. The connection structure for a shield connector according to claim 1, wherein a relief groove for a press-contact portion of the inner conductor terminal is formed on a butt surface of the holding member. 4. The outer conductor terminal is provided with a guide piece for guiding the mounting of the holding member, and the holding member is provided with a guide groove into which the guide piece is inserted. The connection structure for a shielded connector according to claim 1. 5. The outer conductor terminal according to claim 1, wherein a lid for closing an opening of the mounting chamber of the holding member is integrally provided via a hinge. The connection structure of the shielded connector described in 1. 6. The shield according to claim 1, wherein the inner conductor terminal is provided with two or more press contact portions in a bending direction of a signal line connection terminal of the cable. Connector connection structure. 7. An inner conductor terminal having a press-contact portion for press-connecting a signal line exposed from a terminal portion of a shielded cable is housed in a terminal insertion member, and the terminal insertion member is formed into a cylindrical shape of an outer conductor terminal. The signal line exposed from the terminal portion of the shielded cable is temporarily locked by being accommodated in the accommodation room, and the signal line exposed from the terminal portion of the shielded cable is bent and held in the holding groove provided on the front side of the insulating holding member. The signal line portion bent and held in the holding groove at the press-contact portion of the inner conductor terminal by being mounted in the opened mounting room and further pushing the terminal insertion member housed in the housing room into the mounting room side. A method for assembling a shield connector, wherein the shield connector is connected by pressure welding.