JP2000156261A - Shield connector - Google Patents

Abstract

(57) [Problem] To provide a shielded connector capable of easily assembling with a simple configuration and improving a shielding effect. A terminal (12) having a connection portion (12a) for electrically connecting a signal line portion (14a) of a shielded electric wire (14), an insulating housing (11) for housing and holding the terminal (12), and one end held on an outer surface of the insulating housing (11). The other end has a relay terminal 13 having a shield conductor connecting portion 13a for electrically connecting the shield conductor 14b of the shielded electric wire 14, and one end of the relay terminal 13 which is externally fitted to the insulating housing 11. And a shield shell 16 electrically contacting the portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a shielded connector.

[0002]

2. Description of the Related Art Conventionally, as a shielded connector, a signal wire terminal of a shielded electric wire is stored and held in a terminal holding portion of a shield outer cylindrical member via an insulator in advance.
Some of them perform a wire connection process such as a braid (shield conductor) (Japanese Patent Publication No. 6-30263, Japanese Patent Publication No. 7-22029).
Reference).

More specifically, in the first prior art, a terminal holding portion is integrally formed with a shield outer cylinder member, and a signal wire of a shielded electric wire is crimped to one end of a pin-shaped signal wire terminal. A signal line crimping portion having a crimping piece is formed and configured to house and hold a plurality of signal line terminals via an insulator in a terminal holding portion of the shield outer cylinder member. A jig insertion hole is formed in the shield outer cylinder member located on the open side and the closed side of the crimping piece of the crimping portion, so that the signal wire can be connected using the jig. In addition, a shield crimping portion having a pair of crimping pieces for crimping the shield conductor of the shielded wire is integrally formed on one end of the cylindrical terminal holding portion, thereby enabling connection of the shield conductor.

[0004]

However, in the first prior art, since the terminal holding portion, the signal wire crimping portion and the shield crimping portion are integrally formed on the shield outer tube member, the signal wire of the shielded electric wire is connected to the signal wire of the shielded wire. Since it is necessary to form a jig insertion hole for connecting (pressing or crimping) the shield conductor in the shield outer cylinder member, there is a problem that the shield effect is reduced.

[0005] For this reason, there has been proposed a device provided with a shield lid for covering the jig insertion hole (Japanese Utility Model Publication 8-9).
In the second prior art, a step of closing the lid with a strong press is required separately.

[0006] There has also been proposed an assembly in which a shielded electric wire is inserted into a shield outer cylinder member integrally formed with a terminal holding portion, a shield crimping portion, and a coating crimping portion (see Japanese Utility Model Publication No. 4-52370). However, in the third prior art, the structure is complicated, the assembly is difficult, and the automation of the assembly is difficult.

An object of the present invention is to solve the problems of the prior art, and an object of the present invention is to provide a shielded connector which can be easily assembled with a simple structure and can improve a shielding effect.

Another object of the present invention is to provide a shielded connector having a waterproof function.

[0009]

SUMMARY OF THE INVENTION A shield connector according to the present invention includes a terminal having a connection portion for electrically connecting a signal line portion of a shielded wire, an insulating housing for housing and holding the terminal, and an outer surface of the insulating housing. One end portion of the relay terminal, the other end portion having a shield conductor connection portion for electrically connecting the shield conductor of the shielded wire, and one end portion of the relay terminal which is externally fitted to the insulating housing. And a shield shell that makes electrical contact with the shield shell.

According to the above configuration, since the insulating housing for housing and holding the terminal, the shield shell externally fitted to the insulating housing, and the relay terminal having the shield conductor connecting portion are formed by separate members, the connection of the shielded electric wires is performed. After that, the entire insulating housing is covered with the shield shell outside and covered by the shield shell and the relay terminal electrically connected to the shield shell, so that the entire insulating housing and the shield conductor connection portion of the relay terminal are shielded. The effect is significantly improved.

Further, since the insulating housing for accommodating and holding the terminal and the relay terminal having the shield conductor connecting portion are formed by separate members, and the entire insulating housing is externally fitted and covered by a shield shell of another member, the structure is simple. The assembly of the relay terminal, the connection of the shielded electric wires, the external fitting of the shield shell to the slide, and the like can be performed in a series from a predetermined direction, thereby facilitating the assembly. in addition,
By appropriately changing the combination of the insulating housing, the relay terminal, and the shield shell, the application range of the shield connector to various multi-core shielded wires can be expanded.

Another shielded connector according to the present invention includes a terminal having a connection portion for electrically connecting a signal line portion of a shielded electric wire, an insulating housing for housing and holding the terminal, and one end portion on the outer surface of the insulating housing. A relay terminal which is held and has, at the other end, a shield conductor connecting portion for electrically connecting a shield conductor of the shielded wire and a rubber plug crimping portion for crimping a rubber plug inserted into the shielded wire; and the insulating housing A shield shell that is fitted to the outside and electrically contacts one end of the relay terminal; and an insertion hole for accommodating and holding the shield shell, and an entrance of the insertion hole is closed by the rubber plug. A housing.

According to this structure, the connection of the signal line portion to the connection portion of the terminal, the connection of the shield conductor portion to the shield conductor connection portion of the relay terminal, and the crimping of the rubber plug to the rubber plug crimping portion of the relay terminal. After performing collectively from the same direction (for example, from the top), the shield shell is slide-fitted to the insulating housing to electrically contact the shield shell with one end of the relay terminal, and the shield shell is connected to the waterproof housing. While receiving and holding through the insertion hole, the entrance of the insertion hole is closed with a rubber stopper.

In these inventions, if the shield shell is formed in a cylindrical shape fitted externally to the insulating housing in the axial direction, the insulating housing can be reliably shielded over the entire circumference. .

If the shield shell and the insulating housing are each formed with an engaging portion for defining a coupling relationship, it is possible to prevent the shield shell from being erroneously inserted into the insulating housing. .

If the engaging portion is constituted by a guide groove and a guide rib formed at positions where they are fitted to each other only when the shield shell is in a specific phase with respect to the insulating housing, the insulating housing and the shield Since the coupling phase of the shell is defined, it is possible to more reliably prevent the shield shell from being erroneously inserted into the insulating housing.

In the vicinity of one opening of the shield shell,
If a configuration is provided in which an erroneous insertion preventing member that prevents insertion of the insulating housing from the opening is provided, the shield shell can be connected to the insulating housing from only one direction, and the connecting direction between the insulating housing and the shield shell is defined. In addition, it is possible to more reliably prevent the shield shell from being erroneously inserted into the insulating housing.

If the rear end of the shield shell overlaps the front end of the shield conductor, the shield effect of the shield shell is further improved.

If the insulating housing and the relay terminal are formed with locking portions for locking the relay terminal at predetermined positions of the insulating housing, respectively, the relay terminal is positioned at an appropriate position with respect to the insulating housing. It becomes possible to fix, and the workability of assembly is also improved.

When the relay terminal and the shield shell are formed with locking portions for locking the shield shell at predetermined positions of the relay terminal, respectively, the shield shell is positioned at an appropriate position with respect to the relay terminal. It becomes possible to fix, and the workability of assembly is also improved.

According to the structure in which the opening corresponding to the connection portion of the terminal is formed in the insulating housing, the signal line portion of the shielded wire is connected to the connection portion of each terminal after the terminal is accommodated and held in the insulating housing. It becomes possible.

By providing a housing cover that closes the opening of the insulating housing, each terminal can be fixed and held at an appropriate position, and if the housing cover is made of the same material as the insulating housing, the entire terminal is substantially uniform. Can be covered with a suitable dielectric, and the impedance at this portion becomes uniform, which can contribute to improvement of high frequency characteristics.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(First Embodiment) FIGS. 1 to 4 show a configuration example of a shield connector 1 according to a first embodiment of the present invention.

As shown in FIG. 1, the shield connector 1 includes a terminal 2, an insulating housing 3, a housing cover 4, a relay terminal 5, a shield shell 6, a waterproof housing 7, a rubber plug 8, And a multi-core shielded wire 9.

As shown in detail in FIG. 2 (a), the rubber plug 8 is formed in a cylindrical shape with a small diameter portion 8a and a large diameter portion 8b, and a central hole 8c of the multicore shielded wire 9 is formed. The outer cover portion 9d is inserted in a watertight manner.

The multi-core shielded wire 9 is connected to the rubber plug 8
After that, the insulator portion 9b covering the signal line portion 9a and the braided (shield conductor) portion 9c are peeled and exposed.

The terminal 2 is a press contact terminal, and has a rectangular tube-shaped terminal fitting portion 2a, a press contact blade (connecting portion) 2b for pressing the signal line portion 9a of the multi-core shielded wire 9, and an insulator. And a crimping portion (barrel) 2c for crimping the portion 9b. It should be noted that a crimping portion for crimping the signal line portion 9a may be used instead of the press contact blade 2b (crimping terminal). This terminal 2
Are provided in a number corresponding to the number of signal line portions 9 a of the multi-core shielded electric wire 9. In this example, the signal line portion 9a is 2
Since it is a book, two are provided.

The rectangular insulating housing 3 is formed with cavities 3a for accommodating and holding the terminals 2 in a side-by-side state, and the press-contact blade 2b and the crimping portion 2c of each terminal 2 have an outer surface 3b facing the outside. A recess 3e is formed in the outer surface 3d on the opposite side so that one end 5a of the relay terminal 5 to be described later is flush with the outer surface 3d. Press-fit projections 3f are formed at the respective positions. In addition, locking projections 3g are formed on both side surfaces, respectively.

As shown in detail in FIG. 3A, the housing cover 4 closes the opening 3c of the insulating housing 3. When the opening 3c is closed, the locking holes 4a on both sides are closed. Each of the locking projections 3g locks and locks with the insulating housing 3.

The relay terminal 5 has a flat plate-like one end 5a having a concave portion 3e formed on the outer surface 3d of the insulating housing 3.
The press-fit holes 5b formed at the front and rear positions of the one end portion 5a are press-fitted into the press-fit protrusions 3f, respectively, so that they are held by the insulating housing 4.

At the other end 5c of the relay terminal 5, a braided crimping portion (shield conductor connecting portion) 5d for crimping the braided portion 9c of the multi-core shielded wire 9 and a small diameter portion 8a of the rubber plug 8 are crimped. And a crimping portion 5e.

On one end 5a of the relay terminal 5, locking pieces 5f, which are cut and raised obliquely rearward and obliquely forward at front and rear positions opposite to the side applied to the surface 3d of the insulating housing 3, respectively. 5 g are each formed.

The shield shell 6 is formed in a rectangular tube shape which can be fitted over the entire length of the insulating housing 3 by sliding in the wire extending direction, and as shown in detail in FIG. 3, the rear end edge 6 a is stopped and locked by the rear locking piece 5 g of the relay terminal 5, and the cut-and-raised piece 6 b at the intermediate position is fixed to the relay terminal 5. It is locked by the front locking piece 5f and is locked to the insulating housing 3.

A cut-and-raised piece 6c is formed obliquely rearward at the front position of the shield shell 6.

As shown in detail in FIG. 4 (b), the shield shell 6 (in which the relay terminal 5, the insulating housing 3, the multi-core shielded wire 9 and the like are assembled) is arranged in parallel with the waterproof housing 7. The cavities 7b for accommodating and holding are formed from the respective insertion holes 7a, and the cut-and-raised pieces 6c of the accommodated shield shell 6 are locked in the cavities 7b, so that the shield shell 6 is secured to the cavity 7b.
Locking projections 7c are formed to lock with b. The rubber plug 8 is inserted into the insertion hole 7b, and the insertion hole 7b is closed in a watertight manner.

The shield connector 1 configured as described above
The assembling procedure will be described below.

First, as shown in FIG. 2A, the terminal 2 is housed and held in the cavity 3a of the insulating housing 3, and one end 5a of the relay terminal 5 is fitted into the concave portion 3e of the outer surface 3d of the insulating housing 3. , Press-fit hole 5b is inserted into press-fit protrusion 3
Press and hold in f.

After the rubber plug 8 is inserted into the jacket 9d of the multi-core shielded wire 9, the multi-core shielded wire 9 is peeled off to form an insulator portion 9b (signal line portion 9a) and a braided portion 9c. And is formed by exposing them.

Then, as shown in FIG. 2B, the insulator portion 9b (signal line portion 9a) of the multi-core shielded wire 9 is aligned with the press-contact blade 2b of the terminal 2, and the braided portion 9c is connected to the relay terminal 5. After positioning the small-diameter portion 8a of the rubber plug 8 with the rubber plug crimping portion 5e of the relay terminal 5, they are collectively pressed and crimped.

Thereafter, as shown in FIG. 3A, the opening 3c of the insulating housing 3 is closed by the housing cover 4, and the locking hole 4a of the housing cover 4 is locked by the locking projection 3g of the insulating housing 3.

Next, as shown in FIG. 3 (b), when the shield shell 6 is slid from the direction in which the electric wire extends into the insulating housing 3 and externally fitted, as shown in FIG. 4 (a), the rear end of the shield shell 6 is formed. 6a and the cut-and-raised piece 6b
Are locked by the locking pieces 5f and 5g.

In this state, when the insulating housing 3 and the like together with the shield shell 6 are inserted into the cavity 7b from the insertion holes 7a of the waterproof housing 7, the cut-and-raised pieces 6d of the shield shell 6 are locked by the locking projections 7c of the cavity 7b. Will be held and held. When the rubber plug 8 inserted through the multi-core shielded electric wire 9 is inserted into the entrance of the insertion hole 7a of the waterproof housing 7, the insertion hole 7a is closed in a watertight manner.

In the procedure for assembling the shield connector 1, the signal line portion 9a of the multi-core shielded electric wire 9 to the terminal 2 is used.
Pressure connection of the relay terminal 5, crimp connection of the braided portion 9b to the braid crimp portion 5d of the relay terminal 5, and crimping of the rubber plug 8 to the rubber plug crimping portion 5e of the relay terminal 5 in the same direction (upward in FIG. 2B). ), The opening 3c of the insulating housing 3 can be closed by the housing cover 4 in the same direction as the above-mentioned press-contact and the like (upward in FIG. 3A).

Further, the shield shell 6 is externally fitted to the insulating housing 3 by sliding the shield shell 6 in the wire extending direction (the horizontal direction in FIGS. 3B and 4A), and the shield shell 6 is connected to one end of the relay terminal 5. The shield shell 6 is electrically connected to the portion 5a, and the shield shell 6 is extended in the wire extending direction (FIG. 3B).
4A, the entrance of the insertion hole 7a can be closed with the rubber stopper 8 while being housed and held in the waterproof housing 7 from the insertion hole 7a.

As described above, since the shield shell 6 and the relay terminal 5 electrically connected to the shield shell 6 shield the entire insulating housing 3 and the braided crimp portion 5d of the relay terminal 5, the shielding effect is significantly improved. Become like

Pressing and crimping of the multi-core shielded wire 9, closing of the housing cover 4, sliding fit of the shield shell 6, insertion of the shield shell 6 into the waterproof housing 7, and closing of the rubber plug 8 are performed upward or sideways. Since a series of operations can be performed from a fixed direction, it is easy to respond to automation of assembly. Further, by closing the entrance of the insertion hole 7a of the waterproof housing 7 with the rubber stopper 8, the shield shell 6 and the like can be waterproofed, so that complete waterproofness can be obtained.

Further, each terminal 2 can be fixed and secured at an appropriate position by the housing cover 4, and if the housing cover 4 is made of the same material as the insulating housing 3, the entire terminal 2 portion is made of a substantially uniform dielectric. Because it will be covered
The impedance at this portion becomes uniform, which can contribute to the improvement of high-frequency characteristics.

Furthermore, since the rear end 6a of the shield shell 6 overlaps the front end 9d of the braided portion 9b of the multi-core shielded wire 9 (see FIG. 4A), the shielding effect of the shield shell 6 is further enhanced. Be improved.

In addition, since the relay terminal 5 is held at a predetermined position of the insulating housing 3 by the press-fit hole 5b and the press-fit protrusion 3f, the workability of the assembly is improved. Then, by inserting the insulating housing 3 into the shield shell 6, the relay terminal 5 and the shield shell 6 can be fixed at appropriate positions, and the reliability of the electrical connection can be improved.

Further, since the shield shell 6 is locked at a predetermined position of the relay terminal 5 by the locking piece 5f and the cut-and-raised piece 6b, the shield shell 6 is fixed at an appropriate position with respect to the relay terminal 5. And the workability of assembly is also improved.

(Second Embodiment) FIGS. 5 to 9 show an example of the configuration of a shield connector 10 according to a second embodiment of the present invention.

As shown in FIG. 5, the shield connector 10 includes a terminal 12, an insulating housing 11, a housing cover 15, a relay terminal 13, and a shield shell 16.
And a multi-core shielded electric wire 14.

More specifically, the multi-core shielded electric wire 14
The signal line portion 14a is covered with an insulator portion 14d,
The outer periphery of the insulator portion 14d is covered with a braid (shield conductor) portion 14b and an outer cover 14c.
4a and the braided portion 14b are peeled and partially exposed.

The terminal 12 is a rectangular tube-shaped terminal fitting portion 1.
2b, and a crimping portion 12a for crimping the signal line portion 14a of the multi-core shielded wire 14. This terminal 12
The number corresponding to the number of the signal line portions 14a of the multi-core shielded electric wire 14 is provided. In this example, since there are two signal line portions 14a, two terminals 12 are provided.

The insulating housing 11 is shown in FIGS.
As shown in FIG. 2, the connector 11 has a substantially rectangular parallelepiped shape having an insertion port 11h for inserting a male terminal for male and female connection with a mating connector on one end surface, and a cavity 11a for accommodating and holding each terminal 12 in a parallel state. An opening 11 i is formed above the vicinity of the crimping portion 12 a of each terminal 12, and a locking projection 11 e for locking the locking claw 13 c of the relay terminal 13 and an engagement of the shield shell 16 are formed on the bottom surface. Stop claws 16b
Is formed. Locking projections 11 for locking the housing cover 15 are provided on both side surfaces.
and a guide groove 11b for guiding and sliding the relay terminal 13 with the guide claw 13b. Further, on the upper surface, a shield shell 16 to be externally fitted is provided.
A guide groove 11g, which is an engagement portion that defines a connection relationship with the guide groove, is formed to be offset to one of the left and right.

The housing cover 15 closes the opening 11 i of the insulating housing 11.
1i, when the locking holes 15a on both sides are
1c and locked to the insulating housing 11.

The relay terminal 13 is, as shown in FIG.
One end portion has a substantially flat plate shape, and has guide claws 13b on both sides thereof for engaging with the guide grooves 11b of the insulating housing 11, and locking claws 13c for locking to the insulating housing 11 and shields on the bottom surface. A locking hole 13d for locking the shell 16 is provided, and the other end has a braided crimping portion (shield conductor connection portion) 13a for crimping the braided portion 14c of the multi-core shielded wire 14. .

As shown in FIG. 8 (or FIG. 9), the shield shell 16 is slid in the direction in which the electric wire extends so that the through-hole 16 can be fitted over the entire length of the insulating housing 11.
As shown in FIG. 6 (b), a locking claw 16b is formed on the bottom surface of the shield shell 16 so as to be inwardly raised toward the inside of the cylinder. Are aligned with the locking holes 13 d of the relay terminal 13 to lock the shield shell 16 at a predetermined position of the relay terminal 13. in addition,
As an engagement portion that defines a coupling relationship between the shield shell 16 and the insulating housing 11, the insulating housing 11 formed at a position where the shield shell 16 is fitted to each other only when the shield shell 16 is in a specific phase with respect to the insulating housing 11. A guide rib 16a that engages with the guide groove 11g and the guide groove 15c of the housing cover 15 is formed so as to protrude inward of the cylinder. Accordingly, the coupling phase between the shield shell 16 and the insulating housing 11 is defined, so that the shield shell 16 is not erroneously inserted into the insulating housing 11.

Further, as shown in FIG. 9, if an erroneous insertion preventing member 16d is provided near one opening of the shield shell 16B to prevent the insulating housing 11 from being inserted through this opening, the insulating housing 11 can be provided with the following structure. On the other hand, the shield shell 16B can be coupled only from one direction, and the coupling direction between the insulating housing 11 and the shield shell 16B is defined.
Erroneous insertion can be more reliably prevented.

Next, the procedure for assembling the shield connector 10 configured as described above will be described.

First, as shown by the arrow P in FIG. 5, the terminal 12 is housed and held in the cavity of the insulating housing 11.
More specifically, when the terminal 12 is inserted into the cavity 11a of the insulating housing 11, as shown in FIG.
In a state where the tip 12d of the terminal 12 is locked to the inner projection 11f of the insulating housing 11, the locking claw 11d of the insulating housing 11 enters the lower locking groove 12e of the terminal 12, and the terminal 12 is locked to the insulating housing 11. .

Next, as shown by the arrow Q in FIGS. 5 and 7, the relay terminal 1 is inserted into the guide groove 11b of the insulating housing 11.
6 is engaged with the guide claw 13b and slide-inserted.
As shown in (b), the latching claw 13c is latched to the latching projection 11e, and the relay terminal 13 is fixed at a predetermined position of the insulating housing 11.

Next, the multi-core shielded electric wire 14 is peeled to expose the signal line portion 14a and the braided portion 14b,
As shown by the arrow R, the multi-core shielded wire 14 is connected to each terminal 1
Connect to 2. Specifically, as shown in FIG.
The signal line portion 14a of the multi-core shielded wire 14 is connected to each terminal 12
, And the braided portion 14b is crimped to the braided crimping portion 13a of the relay terminal 13.

Next, as shown by the arrow S, the opening 11i of the insulating housing 11 is closed with the housing cover 15, and
The locking hole 15a of the housing cover 15 is locked by the locking protrusion 11c of the insulating housing 11. At this time, FIG.
As shown in FIG. 7, the lock claw 15b of the housing cover 15 enters the upper lock groove 12c of the terminal 12, and
Is locked to the insulating housing 11.

Next, the arrow T in FIGS. 5 and 8 (or FIG. 9)
As shown in the figure, the guide rib 16a of the shield shell 16
Are engaged with the guide grooves 11g of the insulating housing 11 and the guide grooves 15c of the housing cover 15, and the shield shell 16 is slid onto the insulating housing 11 from the direction in which the electric wires extend, as shown in FIG. 6 (b). The one end surface of the shield shell 16 is locked by the locking piece 13f of the relay terminal 13, and the locking claw 16b of the shield shell 16 is locked by the locking hole 13d on the bottom surface of the relay terminal 13. And the insulating housing 11 have a predetermined coupling relationship.

In the above description, after the terminal 12 is accommodated and held in the cavity 11a of the insulating housing 11, the signal line portion 14a of the multi-core shielded wire 14 is crimped to the crimping portion 12a of each terminal 12, and the braided portion 14b is crimped. Relay terminal 1
Although the example in which the wires are crimped to the third braided crimping portion 13a and connected collectively is shown, other assembling procedures may be adopted. For example, after crimping the signal line portion 14a of the multi-core shielded wire 14 to the crimping portion 12a of each terminal 12, the terminal 12 is housed and held in the cavity 11a of the insulating housing 11, and
1 is closed with the housing cover 15 and the terminal 1 is closed.
2 may be locked to the insulating housing 11, and then the braided portion 14 b of the multi-core shielded wire 14 may be crimped to the braided crimp portion 13 a of the relay terminal 13.

In the procedure for assembling the shield connector 10, the crimp connection of the signal wire portion 14a of the multi-core shielded wire 14 to the terminal 2 and the crimp connection of the braid portion 14b to the braid crimp portion 13a of the relay terminal 13 are performed in the same direction. And the opening 11c of the insulating housing 11 can be closed by the housing cover 15 from the same direction as the crimp connection or the like.

Also, the shield shell 16 can be electrically fitted to one end of the relay terminal 13 by sliding the shield shell 16 on the insulating housing 11 from the wire extending direction.

As described above, the shield shell 16 and the relay terminal 13 electrically connected to the shield shell 16 shield the entire insulating housing 11 and the braided crimp portion 13a of the relay terminal 13, so that the shielding effect is significantly improved. Become like

Further, since the crimping of the multi-core shielded wire 14, the closing of the housing cover 15, and the sliding fitting of the shield shell 16 can be performed in a series from a predetermined upward or lateral direction, assembly is easy and automation of assembly is facilitated. Will also be easier to handle.

Further, each terminal 12 is connected to the housing cover 15.
If the housing cover 15 is made of the same material as the insulating housing 11, the entire terminal 2 can be covered with a substantially uniform dielectric, so that the impedance at this portion can be reduced. Becomes uniform, which can contribute to improvement of high frequency characteristics.

Further, since the shield shell 16 has a simple configuration in which the shield shell 16 is externally fitted to the insulating housing 11, the length of the shield shell 16 can be arbitrarily set, and the entire insulating housing 11 and the braided connection portion 13a of the relay terminal 13 are formed. Up to one member, and the rear end of the shield shell 16 can overlap with the front end of the braided portion 14b of the multi-core shielded wire 14 (see FIG. 6A). The shielding effect is significantly improved.

In addition, the relay terminal 13 is guided by the guide claw 13b into the guide groove 11b of the insulating housing 11 and is slid and inserted, and the locking claw 13c and the locking protrusion 11e move the relay terminal 13 to a predetermined position on the insulating housing 11. Since it is locked, the workability of assembly is improved. By externally fitting the shield shell 16 to the insulating housing 11, the relay terminal 13 and the shield shell 16 can be fixed at appropriate positions, and the reliability of electrical connection can be improved.

Further, one end surface of the shield shell 16 is locked by the locking piece 13f of the relay terminal 13, and the locking claw 16b of the shield shell 16 is locked by the locking hole 13d on the bottom surface of the relay terminal 13. Therefore, the shield shell 16 and the insulating housing 11 can be fixed at an appropriate position where a predetermined connection relationship is established, and the workability of assembly is also improved.

Further, since the insulating housing for accommodating and holding the terminal and the relay terminal having the braided connection portion are formed as separate members, even when the outer shape of the braided portion 14b of the multi-core shielded wire 14 is different, It can be dealt with by replacing the relay terminal 13 with a shape suitable for it, and it is not necessary to individually design the entire structure of the shielded connector. Therefore, by appropriately changing the combination of the insulating housing, the relay terminal, and the shield shell, various types can be obtained. It can correspond to the core shielded electric wire, and the applicable range of the shielded connector can be expanded.

As described above, the shield connector of the present invention is not limited to the specific configuration of each of the above-described embodiments, and it is needless to say that the configuration may be modified, added, or deleted as needed. For example, in the above, the example in which the shield conductor of the shielded wire is a braided type is shown, but the present invention is not limited to this.
A horizontal winding type or a metal foil type may be used. Specifically, soft aluminum or soft copper tape, aluminum laminated plastic tape, metallized paper, or the like can be used.

[0078]

As described above, according to the shielded connector of the present invention, the insulating housing for accommodating and holding the terminal, the shield shell externally fitted to the insulating housing, and the relay terminal having the shield conductor connecting portion are separate members. After the shielded wires are connected, the entire insulation housing is covered with an externally fitted shield shell, and the entire insulation housing and the relay terminals are connected by the shield shell and the relay terminals electrically connected thereto. Since the shield conductor connection portion is shielded, the shielding effect is significantly improved.

Further, since the insulating housing for accommodating and holding the terminal and the relay terminal having the shield conductor connecting portion are formed of separate members, and the entire insulating housing is externally fitted and covered with a shield shell of another member, the structure is simple. The assembly of the relay terminal, the connection of the shielded electric wires, the external fitting of the shield shell to the slide, and the like can be performed in a series from a predetermined direction, thereby facilitating the assembly. in addition,
By appropriately changing the combination of the insulating housing, the relay terminal, and the shield shell, it is possible to cope with various multi-core shielded electric wires, and it is possible to expand the applicable range of the shield connector.

Further, by closing the entrance of the insertion hole with a rubber plug while accommodating and holding the shield shell through the insertion hole in the waterproof housing, the shield shell and the like can be completely waterproofed.

In the present invention, if the shield shell is formed in a cylindrical shape that is fitted to the insulating housing in the axial direction, the insulating housing can be reliably shielded over the entire circumference.

If the shield shell and the insulating housing are each formed with an engaging portion for defining a coupling relationship, it is possible to prevent the shield shell from being erroneously inserted into the insulating housing.

If the engaging portion comprises a guide groove and a guide rib formed at positions where they are fitted to each other only when the shield shell is in a specific phase with respect to the insulating housing, the insulating housing and the shield shell Is defined, it is possible to more reliably prevent the shield shell from being erroneously inserted into the insulating housing.

If an erroneous insertion preventing member is provided near one opening of the shield shell to prevent the insertion of the insulating housing from this opening, the shield shell can be connected to the insulating housing only in one direction. Since the connection direction of the housing and the shield shell is specified,
It is possible to more reliably prevent the shield shell from being erroneously inserted into the insulating housing.

If the rear end of the shield shell is configured to overlap the front end of the shield conductor of the shielded electric wire,
The shield effect by the shield shell is further improved.

If the insulating housing and the relay terminal are formed with locking portions for locking the relay terminal at a predetermined position of the insulating housing, the relay terminal is fixed at an appropriate position with respect to the insulating housing. And the workability of assembly is also improved.

If the relay terminal and the shield shell are formed with locking portions for locking the shield shell at predetermined positions of the relay terminal, respectively, the shield shell is fixed at an appropriate position with respect to the relay terminal. And the workability of assembly is also improved.

With the configuration in which the opening corresponding to the terminal connection portion is formed in the insulating housing, the signal line portion of the shielded wire can be connected to the connection portion of each terminal after the terminal is housed and held in the insulating housing. .

If a housing cover for closing the opening of the insulating housing is provided, each terminal can be fixed and held at an appropriate position, and if the housing cover is made of the same material as the insulating housing, the terminals as a whole are substantially uniform. It can be covered with a dielectric, and the impedance at this portion becomes uniform, which can contribute to improvement of high frequency characteristics.

[Brief description of the drawings]

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

2A and 2B are assembly procedures of the shielded connector according to the first embodiment of the present invention, in which FIG. 2A is a side view of the shielded wire before pressure welding and crimping, and FIG. It is.

3A and 3B are assembly procedures of the shield connector according to the first embodiment of the present invention, wherein FIG. 3A is a side view when the housing cover is closed, and FIG.

4A and 4B are assembly procedures of the shielded connector according to the first embodiment of the present invention, wherein FIG. 4A is a side view when the shield shell is fitted to the outside, and FIG. 4B is a side view when assembly of the waterproof housing is completed. .

FIG. 5 is an exploded perspective view showing a configuration example and an assembling procedure of a shielded connector according to a second embodiment of the present invention.

6A and 6B are cross-sectional views illustrating a configuration example of a shielded connector according to a second embodiment of the present invention, wherein FIG. 6A is a cross-sectional view illustrating a state where a shielded electric wire is connected to a terminal housed in an insulating housing, and FIG. ) Shows a cross section of the shield shell and the relay terminal externally fitted to the insulating housing.

FIG. 7 is an exploded perspective view showing an insulating housing and a relay terminal of a shield connector according to a second embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a shield shell, an insulating housing and a housing cover of a shield connector according to a second embodiment of the present invention.

FIG. 9 is a second exploded perspective view showing the shield shell, the insulating housing, and the housing cover of the shield connector according to the second embodiment of the present invention.

[Explanation of symbols]

 1, 10 Shield connector 2, 12 terminal 2b Pressure contact blade (connection part) 3, 11 Insulated housing 3a, 11a Cavity 3c, 11i Opening 4, 15 Housing cover 5, 13 Relay terminal 5a One end 5c Other end 5d, 13a Braid Crimping part (shield conductor connection part) 5e Rubber plug crimping part 6, 16 Shield shell 7 Waterproof housing 7a Insertion hole 7b Cavity 8 Rubber plug 9, 14 Multi-core shielded wire 9a, 14a Signal line part 9c, 14b Braid (shield conductor) Part 11b Guide groove 11g Guide groove (engaging portion) 11j, 13d Locking hole (locking portion) 13b Guide claw 13c, 16b Locking claw (locking portion) 16a Guide rib (engaging portion) 16d Mis-insertion prevention member

Continuation of the front page (72) Inventor Jun Imazu 1-7-10 Kikuzumi, Minami-ku, Nagoya, Aichi Prefecture Inside Harness Research Institute, Inc. (72) Inventor Yasuhiro Hiura 1-7-7, Kikuzumi, Minami-ku, Nagoya, Aichi, Japan 10 Harness Research Institute, Inc. (72) Inventor Chihiro Yoshioka 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Harness Research Institute, Inc.

Claims (11)

[Claims] A terminal having a connection portion for electrically connecting a signal line portion of the shielded electric wire; an insulating housing for housing and holding the terminal; one end held on an outer surface of the insulating housing; A relay terminal having a shield conductor connection portion for electrically connecting a shield conductor of the shielded electric wire; and a shield shell externally fitted to the insulating housing and electrically contacting one end of the relay terminal. A shielded connector characterized in that: 2. A terminal having a connection portion for electrically connecting a signal line portion of a shielded electric wire, an insulating housing for accommodating and holding the terminal, one end held on the outer surface of the insulating housing, and the other end A relay terminal having a shield conductor connecting portion for electrically connecting a shield conductor of the shielded wire and a rubber plug crimping portion for crimping a rubber plug inserted into the shielded wire; A shield shell electrically connected to one end of the terminal; and a waterproof housing having an insertion hole for housing and holding the shield shell, and an entrance of the insertion hole being closed by the rubber stopper. Characterized shield connector. 3. The shield connector according to claim 1, wherein the shield shell has a cylindrical shape fitted externally to the insulating housing in an axial direction. 4. The shielded connector according to claim 3, further comprising an engagement portion for defining a coupling relationship between the shield shell and the insulating housing. 5. The shield connector according to claim 4, wherein the engagement portion comprises a guide groove and a guide rib formed at positions where they are fitted to each other only when the shield shell is in a specific phase with respect to the insulating housing. . 6. The shield connector according to claim 4, wherein an erroneous insertion prevention member for preventing insertion of the insulating housing through the opening is provided near one opening of the shield shell. 7. The shield shell according to claim 1, wherein a rear end of the shield shell overlaps a front end of the shield conductor.
The shielded connector according to any one of the above. 8. The shielded connector according to claim 1, wherein a locking portion for locking the relay terminal at a predetermined position of the insulating housing is formed on each of the insulating housing and the relay terminal. . 9. The shield connector according to claim 1, wherein locking portions for locking the shield shell at predetermined positions of the relay terminal are formed on the relay terminal and the shield shell, respectively. . 10. The shielded connector according to claim 1, wherein an opening corresponding to a terminal connection portion is formed in the insulating housing. 11. The shielded connector according to claim 10, further comprising a housing cover for closing an opening of said insulating housing.