JP2002319456A - Shield connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shield connector wherein a tensile strength of a shield terminal having a structure wherein shielding is improved by separating an outer conductor terminal into two is secured and wherein reliability is also secured by preventing half-insertion into a connector housing. SOLUTION: A wing-like stabilizer 34b installed at a relay terminal 34 is fixed by a retainer 4 in a guiding groove 26 concavely installed at an inner wall of a connector housing part 22 of the connector housing 2 in order that an electric connector 3 whose shielding is improved by a constitution wherein the outer conductor terminal integrated is separated into two of an outer conductor shell 31 and the relay terminal 34 is housed in and fixed to the connector housing 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to connection of a cable such as a wire harness to an electric device such as an automobile, and more particularly to a shield connector for relaying a shielded cable to a printed circuit board or an antenna in the electric device. .

[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.
With the increase in the frequency of transmitted electric signals, there has been an increasing demand for high-frequency, small-sized shield connectors for relay connection of this shielded cable.

The structure of a shielded cable is usually
An insulating insulator is interposed between a signal wire that is a bundle of a plurality of metal wires as a transmission path for electrical signals, and a shield wire that is also a braided wire that is made up of a plurality of wires. Is also covered with an insulating sheath, and the shielded wire covers the outer periphery of the signal wire without any gap, so that it is electromagnetically shielded to ensure noise resistance.

Generally, a shielded connector for relay connection of such a shielded cable for transmitting a high-frequency signal is connected to a shield line such as an inner conductor terminal or a braided wire for connection to a signal line for transmitting a high-frequency signal. And an outer conductor terminal formed in a cylindrical shape for electromagnetically shielding by covering the outer periphery of the inner conductor terminal, and a dielectric having a predetermined permittivity provided between the inner conductor terminal and the outer conductor terminal. A signal line of the shielded cable to be relayed and a shielded line are individually electrically relayed and connected.

Usually, the outer conductor terminal for the purpose of shielding is formed integrally with a portion connected to the shield wire and a portion covering the inner conductor terminal.
No. 261 discloses a shield connector comprising a relay terminal, which is usually integrated with an outer conductor terminal, which is crimped and fixed to a shielded cable, and an outer conductor for covering the outer periphery of the inner conductor terminal. By separating into two shells, the inner conductor terminal is almost completely covered by the outer conductor shell, so that the shielding performance and transmission characteristics are improved and the assemblability is improved. In this case, the separated relay terminal is electrically connected to the outer conductor shell by being contacted and locked.

[0006]

However, the shield terminal unit having such a configuration connected to the end of the shielded cable is inserted into the insulating connector housing after the cable end processing, and is housed and fixed. ,
In this structure, since the connector housing locks the shield terminal unit to the shield terminal unit only for the outer conductor shell which is separated into two parts, when the shield cable is pulled, the connector is Before the whole shield terminal unit comes off from the housing, there is a possibility that the relay terminal comes off from the outer conductor shell.

[0007] Similarly, since the engagement by the connector housing is performed only on the outer conductor shell which is separated into two parts, the relay terminal can be properly accommodated in the half-inserted state. Even if it is not locked in position, the shield terminal unit can be inserted into the connector housing, and it is not possible to detect such a half-insertion state. There was a problem with the connection reliability.

The problem to be solved by the present invention is to improve the strength of such a shielded connector in which the outer conductor terminal is separated into two to improve the shielding performance against pulling, and to prevent half insertion into the connector housing. To improve reliability.

[0009]

According to a first aspect of the present invention, there is provided a shielded connector having a shielded cable having a signal line and a shielded line. The conductor terminal is held in an insulative dielectric housing, the shield wire of the shielded cable is electrically connected to the relay terminal held on the outer surface of the dielectric housing, and the relay terminal electrically contacts the relay terminal. An electrical connector having a configuration in which a conductor shell is fitted to the dielectric housing is accommodated in a connector housing, and a stabilizer projecting from the relay terminal is inserted into a guide groove provided on an inner wall surface of the connector housing. A retainer inserted through a retainer mounting hole formed in the side surface of the connector housing engages with the stabilizer, and the electric connector cannot be pulled out. It is an gist to be kept.

[0010] According to the shield connector having the above configuration, the dielectric housing for holding the inner conductor terminal, the outer conductor shell externally fitted to the dielectric housing, and the relay terminal connected to the shield wire are formed by separate members. So
After the connection of the shielded cable, the entire dielectric housing is covered with the outer conductor shell so as to be fitted over the outer conductor shell, and the outer conductor shell and the relay terminal that is in electrical contact with the outer conductor shell make the entire dielectric housing and the shield terminal connection portion of the relay terminal. It is possible to adopt a structure that shields up to a maximum, and since the inner conductor terminals are almost completely covered by the shield shell, the shielding performance and the high-frequency transmission characteristics are improved.

Furthermore, with such a simple configuration, the assembly of the relay terminal, the connection of the shielded cable, the external fitting to the outer conductor shell, and the like can be performed in a series from a predetermined direction. In addition, it is possible to expand the range of application to various types of multi-core shielded cables by appropriately changing the combination of the dielectric housing, the relay terminal, and the outer conductor shell, in addition to the automation of the cable.

The relay terminal of the electrical connector having improved shielding performance and assemblability has a stabilizer projecting into a guide groove provided on the inner wall surface of the connector housing. Since the retainer is engaged with the stabilizer inserted into the groove to hold the electric connector undetachably, pulling of the cable prevents the relay terminal from coming off, that is, preventing the electric connector from coming off. Even if an external force such as bending of the cable is applied to the electrical connector after being accommodated in the connector housing, the relay terminal wobble in the housing of the relay terminal by the stabilizer engaged with the retainer in the guide groove, that is, the electrical connector Since the wobble is regulated, a load is not applied to a connection portion (due to crimping, pressure welding, soldering, or the like) between the inner conductor terminal and the signal line, and connection reliability is improved.

Further, a stabilizer is protruded from the relay terminal,
Since the connector housing is provided with the guide groove into which the stabilizer is inserted, erroneous insertion when the electric connector is housed in the connector housing can be prevented.

[0014] In this case, the retainer inserted from the retainer mounting opening of the connector housing has a temporary locking position allowing the housing of the electrical connector and a temporary locking position. The push-in position is also a deep push-down position, and can be held in a permanent locking position for engaging with the stabilizer to prevent the stabilizer from coming off. When the retainer is pushed into the connector housing after the electric connector is accommodated in the connector housing and the main locking is performed, the If the connector unit is in the half-inserted state, the half-insertion detection part of the retainer abuts against the stabilizer and cannot be pushed into the full locking position, so half-insertion of the terminal unit is detected. Kill. Furthermore, if the relay terminal is in a half-inserted state with respect to the outer conductor shell, the stabilizer of the relay terminal is not in the correct position even if the outer conductor shell is housed in the correct position in the connector housing. The retainer cannot be pushed into the full locking position.
As a result, half insertion of the relay terminal into the outer conductor shell can be detected.

According to a third aspect of the present invention, in the connector housing, a lance portion for locking the outer conductor shell of the electric connector is in contact with the outer conductor shell until reaching the locking position. According to the configuration provided so as to be able to bend and deform, there is a possibility that the relay terminal is detached by pulling and the electric connector unit is damaged by the lance portion for locking the outer conductor shell and the retainer for locking the relay terminal. Gone
The strength will increase.

According to a fourth aspect of the present invention, if the retainer is provided with a lance restricting portion for restricting a bending deformation of the lance portion which locks the outer conductor shell, the lance portion can be used. The pull-out strength of the outer conductor shell against the pull of the locking is increased.

According to a fifth aspect of the present invention, the guide groove and the lance are provided so as to face each other in the connector housing. The position where the stabilizer is locked by the retainer faces the position, and the electrical connector unit is not squeezed in the connector housing when the lance and the retainer are pulled more than when they are on the same side, making it hard to break. .

Further, if the outer conductor shell is provided with a slit into which the stabilizer of the relay terminal is inserted, it is possible to prevent erroneous insertion into the outer conductor shell. Thus, the outer conductor shell can be configured to shield the entire dielectric housing and the shield wire connection portion of the relay terminal.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a shield connector according to an embodiment of the present invention will be described in detail with reference to the drawings. Here, the shielded connector according to the embodiment is applied to a shielded cable having a single signal line or a so-called multi-core shielded cable having a large number of signal lines. explain. FIG. 1 is an exploded perspective view of the shield connector 1. This shield connector 1 includes:
The connector housing 2, the electric connector 3 housed in the connector housing 2 (consisting of four points of an outer conductor shell 31, a dielectric housing 32, an inner conductor terminal 33, and a relay terminal 34), and the housed electric connector 3 is provided. In the following description, the fitting direction with a mating shield connector (not shown) is defined as a front direction.

First, the electric connector 3 will be described with reference to FIGS. The electric connector 3 includes an outer conductor shell 31,
Dielectric housing 32, inner conductor terminal 33, relay terminal 34
It consists of four points.

The inner conductor terminals 33, 33 have a so-called female terminal shape and are connected to the conductor 51a of the shielded cable 5 to transmit a high-frequency signal. As shown in FIG. 3, a terminal insertion opening 33 b into which a male terminal of a mating shield connector (not shown) is inserted is provided at an end of the inner conductor terminal 33, and the male terminal is elastically attached to the terminal. The elastic contact pieces 33c, 33c that come into contact with each other are provided vertically. At the rear of the inner conductor terminal 33, there is provided a press-contact blade 33a capable of breaking the insulating inner cover 51b of the signal line 51 of the shielded cable 5 and contacting the inner conductor 51a. The engagement piece 33 cut and raised substantially in the center is provided.
d is provided and is engaged with an engagement projection 32e inside the dielectric housing 32 described later to prevent the dielectric housing 32 from falling off.

The dielectric housing 32 is formed of a synthetic resin material and has a predetermined permittivity. As shown in FIG. 3, terminal housing chambers 32a, 32a for housing the inner conductor terminals 33, 33 are provided separated by partition plates 32f. A male terminal of a mating shield connector (not shown) is inserted into the front part, and a terminal insertion port 33 of the inner conductor terminal 33 housed in the terminal housing chamber 32a.
The insertion openings 32b, 32b for inserting and connecting to the b are opened. A horizontal portion 34 a of a relay terminal 34, which will be described later, is
A horizontal plate 32g is provided so as to be flush with h, and a fitting projection 32c is formed on the horizontal plate 32g so as to protrude.

The relay terminal 34 connects the shield wire 52 of the shielded cable 5 to an outer conductor shell 31 described later, and is formed by bending a conductive plate material. The horizontal portion 34a has a fitting hole 34c that fits into the fitting projection 32c provided on the horizontal plate 32g of the dielectric housing 32. On the left and right sides, stabilizers 34b, 3
4b is provided to protrude laterally. The stabilizers 34b, 34b are formed by slits 31 formed in slit-like notches on both side walls behind an outer conductor shell 31 described later.
d, 31d. Further, a shield wire 52 at a terminal portion of the shielded cable 5 is provided on the rear portion.
3 are provided with crimping pieces 34d, 34d for caulking and holding the inverted portion 52a.

The outer conductor shell 31 is connected to the shielded cable 5
The outer conductor of the inner conductor terminal 33 connected to the signal line 51 is electromagnetically shielded by covering the outer periphery of the inner conductor terminal 33. The inner conductor terminal 33 is formed by bending a conductive plate material, and is provided with a substantially rectangular cylindrical receiving portion 31e. In this housing portion 31e, a main locking piece 31a and a temporary locking piece 31b that engage with the engaging recess 32d of the dielectric housing 32 are provided at the front and rear. In addition, outer conductor shell 3
Slits 31d, 31d cut in a slit shape are formed in both side walls behind 1 to lock the inserted stabilizer 34b.

When assembling these connector members, first, the inner conductor terminals 33, 33 are housed in the terminal housing chambers 32a, 32a of the dielectric housing 32. At this time, the inner conductor terminal 33
The engaging piece 32d of this is engaged with the engaging convex part 32e provided to protrude into the storage chamber 32a, so that the engaging piece 32d is prevented from coming off. Thereafter, the fitting protrusion 32c provided on the outer surface of the horizontal plate 32g of the dielectric housing 32 is fitted into the fitting hole 34c provided in the relay terminal 34, and the dielectric housing 32 is positioned at the relay terminal 34. It is fixed (see FIG. 3).
The assembly 60 assembled by the three connector members of the inner conductor terminal 33, the dielectric housing 32, and the relay terminal 34 is inserted into the outer conductor shell 31 as shown in FIG.

Here, the terminal processing step of the shielded cable 5 will be specifically described with reference to FIGS. 5A, which is a longitudinal sectional view of the electric connector 3, FIG.
(B) and (c) are external perspective views shown in FIG. 6, FIG. 7, and FIG.

First, as shown in FIGS. 5A and 6, the assembly 60 including the inner conductor terminal 33, the dielectric housing 32 and the relay terminal 34 is connected to the outer conductor shell 31.
Into the temporary locking position. At this time, the temporarily inserted piece 31b provided on the rear side of the inner wall of the housing portion 31e of the outer conductor shell 31 is engaged with the engagement recess 32d provided in the dielectric housing 32 of the inserted assembly 60, The assembly 60 is temporarily locked in the outer conductor shell 31.

In the temporarily locked state, the shielded cable 5 from which the signal wire 51 and the shielded wire 52 are exposed by stripping off the insulating jacket 53 at the terminal portion of the two-core shielded cable is connected to the assembly 60. As shown in FIGS. 5B and 7, the press-contact blade 33 a formed on the inner conductor terminal 33 that accommodates and fixes the exposed signal line 51 in the dielectric housing 32.
Are brought into contact with the conductor 51a of the signal line 51 to be electrically connected. The exposed shield wire 52 is inverted on the insulating jacket 53, and the inverted portion 52a is clamped and held by the crimping pieces 33d, 34d of the relay terminal 34 positioned and fixed to the dielectric housing 32, thereby holding the shield wire. 52 contacts the relay terminal 34 and is electrically connected. Thereby, the connection terminal of the shielded cable 5 is connected and fixed to the assembly 60.

As described above, the conductor 51 of the shielded cable 5
a and the shield wire 52 are connected to each other, and the assembly 60 is inserted farther from the position of the provisionally locked state. FIG.
As shown in FIG. 8 (c) and FIG. 8, the further inserted assembly 60 is disengaged from the engagement recess 32d provided in the dielectric housing 32 by the temporary engagement piece 31b, and is now provided on the front side. The main locking piece 31a is engaged and fully locked. In this way, the assembly 60 is locked in the outer conductor shell 31 in the fully locked state. At this time, the outer surface of the relay terminal 34 comes into surface contact with the inner surface of the outer conductor shell 31 to be electrically connected. Thus, the shielded wire 52 of the shielded cable 5 is connected to the outer conductor shell 3 via the relay terminal 34.
1 is electrically connected.

The stabilizers 34b, 34b provided on the right and left of the relay terminal 34 in the shape of a wing piece are connected to the outer conductor shell 31.
The slits 31d, 31d formed in the notch on the rear side wall surface are inserted into the slits 31a, and at the same time, contact with the front ends of the slits 31d to restrict the movement in the insertion direction. In this way, the assembly 60 in the fully locked state is restricted from moving forward and backward in the outer conductor shell 31 and is fixed so as not to come off.

As described above, since the relay terminal 34 is separated into two parts, the relay terminal 34 which is crimped and fixed to the shielded cable 5 and the outer conductor shell 31 for covering the outer periphery of the inner conductor terminal 33, the inner conductor terminal 33 can be almost completely covered by the outer conductor shell 31, and the shielding performance and transmission characteristics are improved.

Next, the connector housing 2 and the retainer 4 will be described. As shown in FIGS. 9 to 15, the connector housing 2 is integrally formed in a substantially rectangular parallelepiped shape from a synthetic resin material, and houses the above-described electric connector 3 therein, and a mating connector (not shown). Mates with
At the front of the connector housing 2, there is provided a hood 21 that can accommodate a mating connector. Food part 21
From the back surface of the cylindrical connector housing portion 22 toward the rear.
Is formed, and in the inner space of the connector housing portion 22,
The latter half of the electric connector 3 can be accommodated. The connector housing portion 22 is opened forward and backward, and a front portion thereof is communicated with a space in the hood portion 21.

From the front end of the hood 21, a lock 2
A lock projection 23a is provided at an intermediate position of the lock portion 23 so as to be bent rearward. The lock projection 23a engages with a connector housing of a mating connector (not shown) to keep both connector housings from coming off. A lock release portion 23b is formed at the rear end of the lock portion 23. When the lock release portion 23b is pressed, the engagement of the mating connector with the connector housing is released, and the retaining state is released. You. Thereby, the insertion and removal by fitting of both connectors are enabled.

The rear of the connector housing 22 is a connector insertion port 24. The lance portion 2 is provided substantially at the center of the inner wall forming the connector housing portion 22 from the rear to the front.
5 protrudes inward. The lance part 25 is formed so as to be able to bend and deform up and down,
Of the outer conductor shell 31 to prevent the electrical connector 3 from coming off (see FIG. 15).
A pair of guide grooves 26, 26 are formed in the left and right portions of the side wall of the inner wall forming the connector accommodating portion 22 opposite to the lance portion 25. The stabilizer 34 b of the relay terminal 34 can be inserted into the guide groove 26.

The lance 25 of the connector housing 2
A retainer mounting opening 27 communicating with the connector housing 22 is provided from the side wall surface. The retainer mounting port 27 is
The retainer 4 is formed in a substantially rectangular shape in accordance with the cross-sectional shape of the retainer 4 described later. , 28b are projected. Of these, the one on the rear wall is a temporary engagement projection 28a, which holds the retainer 4 at the temporary engagement position. On the front wall, the temporary engagement projection 2
The main engagement projection 28b is provided at a position deeper than the main engagement protrusion 8a, and holds the retainer 4 at the main engagement position. A connector engaging groove 29 communicating with the guide groove 26 of the connector housing 22 is formed inside the retainer engaging grooves 28. The connector housing groove 29 has a retainer 4 described later.
The connector engaging portion 44a of the connector can enter.

The retainer 4 is integrally formed of a synthetic resin material and is assembled to the connector housing 2 to hold the electric connector 3 in place. The retainer 4 includes a base 41 formed flush, a pair of engaging legs 42, 43 extending at right angles from the left and right ends of the base 41, and a right angle from the inside of the base 41 with respect to both engaging legs. And a pair of left and right center pieces 44 extending from the center. The base portion 41 is formed in a substantially rectangular shape, and can be housed outside the lance portion 25 so as to cover the lance portion 25 in the space of the retainer mounting port 27 of the connector housing 2.

Engagement leg pieces 42 and 43 extending from the left and right ends of the base 41 of the retainer 4 and the center piece 4, respectively.
4, the engaging leg pieces 42, 43 provided on the front and rear are capable of flexing and deforming in the closing direction of each other, and engaging claws 42 a, 43 a protrude from the tips of the leg pieces 42, 43. As a result, it is possible to engage with the engagement protrusions 28a, 28b formed on the inner walls of the retainer engagement grooves 28, 28. That is, the temporary engaging claw 42a of the rear temporary engaging leg 42 engages with the temporary engaging projection 28a to hold the retainer 4 at the temporary engaging position (see FIG. 11).

A connector engaging portion 44a is further extended from the pair of left and right center pieces 44 to be longer than the engaging leg pieces 42 and 43, and extends from the connector engaging groove 29 into the guide groove 26. It is possible to enter. An interference avoiding groove 44b is formed in the vicinity of the distal end of each connector engaging portion 44a on the side facing each other. The groove width of the interference avoiding groove 44b is substantially equal to the groove width of the guide groove 26. When the retainer 4 is at the temporary engagement position, the interference avoiding groove 44b
Are aligned with the guide grooves 26, and at this time, insertion and removal of the electrical connector 3 into and from the connector housing portion 22 are allowed. Further, when the retainer 4 is further pushed in to the full engagement position, the interference avoiding groove 44b is moved further back than the guide groove 26.
6 is closed at an intermediate position (see FIGS. 14 and 15).

Next, a procedure for assembling the above-described electric connector 3 to the connector housing 2 having such a configuration will be described with reference to FIG.
This will be described with reference to FIGS. FIG. 15 is a cross-sectional view after the assembly is completed. Regarding the electric connector 3 in FIGS. 10 to 14, the relay terminal is described in order to explain the engagement of the retainer 4 with the connector housing 2. 3
4 shows only the cross section of the stabilizer 34b, and the other parts are omitted.

First, the retainer 4 is assembled to the connector housing 2 before the electric connector 3 is assembled. The engaging leg pieces 42, 43 of the retainer 4 and the connector engaging portion 44a are respectively connected to the retainer engaging grooves 28, 28 of the retainer mounting opening 27.
And the connector engagement groove 29 to perform a pressing operation.
When the temporary engaging leg 42 is closed and deformed, the temporary engaging claw 42a gets over the temporary engaging protrusion 28a, and the temporary engaging leg 42 is again deformed to return, the retainer 4 reaches the temporary engaging position (FIGS. 10 and 10). 11).

Here, insertion of the electric connector 3 from the connector insertion port 24 is started (see FIG. 11). At this time, at the temporary engagement position, the interference avoiding groove 44b recessed in the connector engagement portion 44a matches the guide groove 26, and the retainer 4 allows the insertion of the electrical connector 3. Outer conductor shell 31
The insertion operation of the electric connector 3 proceeds in a state where the outer wall of the housing portion 31e of the lance portion 25 has bent the lance portion 25 (FIGS. 11 and 1).
2). When the outer wall of the housing portion 31e climbs over the lance portion 25, the lance portion 25 is returned and deformed, engages with the lance engaging portion 31c on the rear edge of the housing portion 31e, and the outer conductor shell 31 of the electrical connector 3 is moved to the lance portion. 25 (FIG. 1)
3 to FIG. 15).

At the same time that the outer conductor shell 31 advances with the lance portion 25 bent, the stabilizer 34 b of the relay terminal 34 provided in the electric connector 3 is inserted into the guide groove 26 of the connector housing 2. Guide groove 26
(See FIGS. 11 and 12). Then, the lance portion 25, which has been returned and deformed, is engaged with the lance engagement portion 31c at the rear edge of the outer conductor shell 31 having passed over the lance portion 25, and the stabilizer 34b of the relay terminal 34 is in contact with the front end of the guide groove 26. , Its progress is regulated (FIG. 13
reference).

Then, in this state, the retainer 4 is further pushed in so as to bring the full engagement claw 43a into contact with the full engagement projection 28b, thereby bending and deforming the full engagement leg piece 43 in the closing direction. When the full engagement claw 43a gets over the full engagement projection 28b, the full engagement leg piece 43 is returned and deformed, and the full engagement claw 43a and the full engagement projection 28b are engaged, so that the retainer 4 is fully engaged. Position (see FIGS. 14 and 15). At this time,
The connector engaging portion 44a of the retainer 4 has an interference avoiding groove 44b.
Is pushed into a position deviated from the guide groove 26, whereby the stabilizer 34 of the relay terminal 34 is
b is restricted from moving back and forth. Further, since the base 41 of the retainer 4 is located outside the lance 25 so as to cover the lance 25 in the space of the retainer mounting opening 27, the bending deformation of the lance 25 is restricted by the base 41. Will be. Thus, the electrical connector 3 is prevented from falling off by the lance portion 25 and the retainer 4.

The electric connector 3 housed in the connector housing 2 is prevented from falling out by the provided outer conductor shell 31 being engaged with the lance portion 25 and the relay terminal 34 is retained by the retainer 4 in the guide groove 26. Since the electric connector 3 is fixed in a state where it is prevented from moving forward and backward, the electric connector 3 is prevented from coming off due to the pulling of the shielded cable 5, and the electric connector 3 after being housed in the connector housing 2 is prevented. Therefore, even if an external force such as bending of the shield cable 5 is applied, the stabilizer 34 of the relay terminal 34
Since wobbling in the connector housing 2 is regulated by the b, a load is not applied to the connection portion between the inner conductor terminal 33 and the signal line 51 (in this case, the contact portion between the press-contact blade 33a and the conductor 51a) and the connection reliability is reduced. The performance is improved.

The stabilizer 34b of the relay terminal 34
Is provided so as to protrude laterally and is inserted into the guide groove 26 of the connector housing 2, thereby preventing erroneous insertion of the electric connector 3 into the connector housing 2 at the time of assembly. Further, after the electric connector 3 is inserted into the connector housing 2, when the retainer 4 is pushed in and fully engaged, the electric connector 3 is in a half-inserted state, that is, the relay terminal 34.
If the stabilizer 34b is still located in the interference avoiding groove 44b, the retainer 4 cannot be pushed to the full engagement position, so that it is possible to detect that the electrical connector 3 is in the half-inserted state. . Furthermore, the outer conductor shell 3
When the relay terminal 34 is in a half-inserted state with respect to 1,
Even if the lance portion 25 is engaged with the lance engagement portion 31c on the rear edge of the outer conductor shell 31, the stabilizer 34 of the relay terminal 34
Since b is not at the regular position at the front end of the guide groove 26, the retainer 4 cannot be pushed into the full engagement position. Thus, half insertion of the relay terminal 34 into the outer conductor shell 31 can be detected.

Connector housing 22 of connector housing 2
Since the guide groove 26 and the lance portion 25 are provided at positions facing each other in the connector housing portion 22,
The position where the outer conductor shell 31 is locked by the lance portion 25 and the position where the stabilizer 34b is locked by the retainer 4 are opposed to each other, and are pulled more than when the position where the lance portion 25 and the retainer 4 are locked is on the same side. The twisting of the electric connector 3 in the connector housing 2 at the time is restricted, and the damage of the electric connector 3 is prevented.

Also, since the stabilizer 34b of the relay terminal 34 is inserted into the slit 31d of the outer conductor shell 31 provided in the electric connector 3, and is locked,
An outer conductor shell 31 having a structure that can prevent erroneous insertion of the relay terminal 34 into the outer conductor shell 31 and further covers the entire inner conductor terminal 33 and the connection portion of the relay terminal 34 with the shield wire.
It can be.

Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, 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-described embodiment, a female terminal is shown as the inner conductor terminal. However, according to the present invention, the terminal may be of any type.

[0049]

According to the shielded connector of the present invention, the outer conductor terminal, which has been conventionally integrated, is separated into two, an outer conductor shell and a relay terminal, so that the electrical connection with improved shielding performance is provided. In order to house and fix the connector in the connector housing, the stabilizer provided on the relay terminal is fixed by engaging the stabilizer with the retainer in the guide groove provided on the inner wall surface of the connector housing. Or the relay terminal alone is prevented from falling out, and even if external force such as bending of the shielded cable is applied to the electrical connector housed in the connector housing, the connector housing is stabilized by the stabilizer of the relay terminal. Since the wobble in the electrical connection is restricted, the connection between the inner conductor terminal of the electrical connector and the signal line is not loaded and the connection signal Sex is also improved.

[Brief description of the drawings]

FIG. 1 is a shielded connector 1 according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view of FIG.

FIG. 2 is an exploded perspective view of the electrical connector 3 according to one embodiment of the present invention as viewed from the rear.

FIG. 3 shows an assembly 60 of the electrical connector 3 shown in FIG.
It is the figure which showed the exploded perspective view which looked at the part from the front, and the external appearance perspective view.

FIG. 4 is an exploded perspective view of the assembly 60 and the outer conductor shell 31 of the electric connector 3 shown in FIG. 3 as viewed from the front.

FIG. 5 is a longitudinal sectional view illustrating a process of connecting the shielded cable 5 to the electric connector 3 in order.

6 is a diagram showing an external perspective view of the electric connector 3 of FIG. 5 (a).

FIG. 7 is a perspective view showing an external appearance of the electric connector 3 of FIG. 5 (b).

8 is a diagram showing an external perspective view of the electric connector 3 of FIG. 5 (c).

9 is a diagram showing a detailed external perspective view of the connector housing 2 and the retainer 4 of FIG.

FIG. 10 shows a connector housing 2 and a retainer 4 before mounting.
FIG. 3 is a view showing a vertical sectional view of FIG.

FIG. 11 is a view showing a longitudinal sectional view of the retainer 4 attached to the connector housing 2 and the temporary locking position.

FIG. 12 is a longitudinal sectional view showing a state of a stabilizer inserted into a guide groove of the connector housing 2.

FIG. 13 is a longitudinal sectional view showing a state in which the movement of the stabilizer inserted into the guide groove of the connector housing 2 is restricted.

FIG. 14 is a view showing a longitudinal sectional view of the connector housing 2 and the retainer 4 mounted at the final locking position.

FIG. 15 is a vertical cross-sectional view showing a state of the electrical connector which is prevented from being removed by the connector housing 2 and the retainer 4 mounted at the final locking position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield connector 2 Connector housing 3 Electric connector 4 Retainer 5 Shield cable 28 Retainer mounting opening 28 Retainer engaging groove 29 Connector engaging groove 31 Outer conductor shell 31d Slit 32 Dielectric housing 33 Inner conductor terminal 34 Relay terminal 34b Stabilizer 42 Temporary engaging leg piece 43 Main engaging leg piece 44b Interference avoiding groove 51 Signal line 52 Shield wire

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chihiro Yoshioka 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside the Auto Network Engineering Laboratory Co., Ltd. (72) Inventor Norifumi Yoshida 1 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture No.7-10, Auto Network Engineering Laboratory Co., Ltd. F-term (reference) 5E021 FA09 FA16 FB20 FC06 FC36 HC12 HC31 HC33 LA09 LA15 5E087 FF08 FF18 GG25 QQ04 RR03 RR06 RR11

Claims (6)

[Claims] An inner conductor terminal electrically connected to a signal line of a shielded cable having a signal line and a shield line is held in an insulating dielectric housing, and held on an outer surface of the dielectric housing. Electrically connecting the shield wire of the shielded cable to the relay terminal, and housing an electrical connector having a configuration in which an outer conductor shell that is in electrical contact with the relay terminal is externally fitted to the dielectric housing, in the connector housing, A stabilizer protruding from the relay terminal is inserted into a guide groove provided on an inner wall surface of the connector housing, and a retainer inserted from a retainer mounting hole formed in a side surface of the connector housing is engaged with the stabilizer. A shielded connector, wherein the electrical connector is undetachably held. 2. A retainer inserted from a retainer mounting opening of the connector housing has a temporary locking position allowing accommodation of the electric connector and a pushing position deeper than the temporary locking position, and is provided to the stabilizer. The retainer can be held at the main locking position where it is engaged to prevent the connector from coming off, and in a half-inserted state where the electric connector is not properly accommodated in the retainer, the retainer comes into contact with the stabilizer and moves to the main locking position. The shield connector according to claim 1, further comprising a half-insertion detection unit that is immovable. 3. A lance portion for locking an outer conductor shell of the electrical connector is provided in the connector housing so as to be able to bend and deform by contacting the outer conductor shell until reaching a locking position. The shielded connector according to claim 1 or 2, wherein: 4. The shielded connector according to claim 3, wherein the retainer is provided with a lance restricting portion for restricting a bending deformation of the lance portion locking the outer conductor shell. 5. The shielded connector according to claim 3, wherein the guide groove and the lance are provided to face each other in the connector housing. 6. The shield connector according to claim 1, wherein the outer conductor shell has a slit into which a stabilizer of the relay terminal is inserted.