JP4514356B2 - Shield connector - Google Patents

Description

[0001]
BACKGROUND 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 that relays and connects a shield cable to a printed board or an antenna in the electric device.
[0002]
[Prior art]
In recent years, electrical signals transmitted to printed circuit boards for control mounted with electronic components and ICs (integrated circuits) incorporated in electrical devices of automobiles such as car navigation systems have been accelerated (increased in frequency). The printed circuit board pattern is also densely packed and densified. Generally, a shielded cable that supports high frequency is used to transmit such a high-frequency electrical signal. However, as the transmitted electrical signal becomes higher in frequency, the shielded connector that relays and connects the shielded cable is also high-frequency. There is an increasing demand for miniaturization.
[0003]
As the structure of a shielded cable, it is usually an insulating property between a signal line in which a plurality of metal wires are bundled as a transmission path for electric signals, etc., and a shield wire made of a braided wire in which a plurality of wires are knitted. It has a structure in which an insulator is interposed and the outer periphery is covered with an insulating sheath, and the shield wire covers the outer periphery of the signal wire without any gaps, thereby electromagnetically shielding and ensuring noise resistance. Yes.
[0004]
Generally, a shield connector for relay connection of a shielded cable that transmits such a high-frequency signal is connected to a shielded wire such as an inner conductor terminal or a braided wire that is connected to a signal wire that transmits a high-frequency signal. A cylindrical outer conductor terminal for electromagnetically covering the outer periphery of the inner conductor terminal and electromagnetically shielded, and a dielectric having a predetermined dielectric constant provided between the inner conductor terminal and the outer conductor terminal are provided. In addition, the signal line of the shielded cable to be relayed and the shielded cable are individually electrically relayed and connected.
[0005]
Usually, the outer conductor terminal for the purpose of shielding is formed integrally with the portion connected to the shield wire and the portion covering the inner conductor terminal. For example, the shield connector disclosed in Japanese Patent Laid-Open No. 2000-156261 The outer conductor terminal, which is usually integrated, is separated into two parts: a relay terminal that is connected by crimping to a shielded cable, and an outer conductor shell that covers the outer periphery of the inner conductor terminal. The conductor terminal is almost completely covered with the outer conductor shell to improve the shielding performance and transmission characteristics and improve the assemblability. In this case, the separated relay terminals are electrically connected by contacting and locking with the outer conductor shell.
[0006]
[Problems to be solved by the invention]
However, the shield terminal unit having such a structure connected to the end of the shielded cable is inserted and fixed in the insulating connector housing after the cable end is processed. Since the locking to the shield terminal unit is fixed only to the two outer conductor shells, when the shield cable is pulled, the entire shield terminal unit is detached from the connector housing. There is a risk that the relay terminal may come off from the outer conductor shell.
[0007]
Similarly, since the locking by the connector housing is performed only on the outer conductor shell separated into two parts, the relay terminal is engaged with the normal housing position of the outer conductor shell in a half-inserted state. Even if it is not stopped, the shield terminal unit can be inserted into the connector housing, and such a half-insertion state cannot be detected, so that the relay terminal is disconnected from the outer conductor shell by pulling. There was a problem with reliability.
[0008]
The problem to be solved by the present invention is to improve the strength against pulling of such a shielded connector by separating the outer conductor terminal into two and improving the shielding performance, and to prevent the half insertion into the connector housing and Is to improve the performance.
[0009]
[Means for Solving the Problems]
In order to solve this problem, the shield connector according to claim 1 of the present invention has an insulative dielectric housing with an inner conductor terminal electrically connected to a signal line of a shielded cable having a signal line and a shield line. The shield wire of the shield cable is electrically connected to the relay terminal held on the outer surface of the dielectric housing, and the outer conductor shell that is in electrical contact with the relay terminal is externally connected to the dielectric housing. The fitted electrical connector is accommodated in the connector housing, and a stabilizer protruding from the relay terminal is inserted into a guide groove provided on the inner wall surface of the connector housing, and is formed in the side surface of the connector housing. The gist is that the retainer inserted from the retainer mounting port engages with the stabilizer to hold the electrical connector in a non-removable manner. Than is.
[0010]
According to the shield connector having the above configuration, the dielectric housing that holds the inner conductor terminal, the outer conductor shell that is externally fitted to the dielectric housing, and the relay terminal that is connected to the shield wire are configured as separate members. After connecting the shielded cable, the entire dielectric housing is covered with the outer conductor shell, and the outer conductor shell and the relay terminal in electrical contact with the outer conductor shell are used to connect the entire dielectric housing and the relay terminal to the shield wire. Since the inner conductor terminal is almost completely covered by the shield shell, the shield performance and the high-frequency transmission characteristics are improved.
[0011]
Furthermore, because of this simple structure, assembly of relay terminals, connection of shielded cables, external fitting to the outer conductor shell, etc. can be carried out in a series from a fixed direction, which facilitates assembly automation. In addition, it is possible to expand the application range for various multi-core shielded cables by appropriately changing the combination of the dielectric housing, the relay terminal, and the outer conductor shell.
[0012]
The relay terminal of the electrical connector with improved shielding performance and ease of assembly is provided with a stabilizer that is inserted into a guide groove provided on the inner wall surface of the connector housing, and is inserted into the guide groove. Since the retainer engages with the stabilized stabilizer and holds the electrical connector in a non-detachable manner, the relay terminal is prevented from being pulled out by pulling the cable, that is, the electrical connector is prevented from being pulled out. Even if an external force such as bending the cable is applied to the electrical connector after being accommodated in the connector housing, the stabilizer that is engaged with the retainer in the guide groove causes the wobbling in the housing of the relay terminal, that is, the electrical connector Since wobble is restricted, the connection reliability between the inner conductor terminal and the signal line (by crimping, pressure welding, soldering, etc.) is not applied and the connection reliability is improved.
[0013]
Further, by providing a stabilizer on the relay terminal and providing the connector housing with a guide groove into which the stabilizer is inserted, it is possible to prevent erroneous insertion when the electrical connector is accommodated in the connector housing.
[0014]
In this case, as described in claim 2, the retainer inserted from the retainer mounting port of the connector housing has a temporary locking position that allows the electrical connector to be accommodated, and a deeper push than the temporary locking position. The retainer can be held in a locked position that engages with the stabilizer to prevent it from coming off, and the retainer abuts against the stabilizer in a semi-insertion state in which the electrical connector is not properly accommodated. If the half-insertion detecting unit that cannot move to the main locking position is provided, the electric connector unit is inserted into the connector housing after the electric connector is received and then the retainer is pushed into the main locking position. In the half-inserted state, the half-insertion of the terminal unit can be detected because the half-insertion detecting portion of the retainer cannot abut against the stabilizer and be pushed into the final locking position. 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 regular position even if the outer conductor shell is accommodated in the regular position in the connector housing. The retainer cannot be pushed into the fully locked position. Thereby, it is possible to detect half insertion of the relay terminal into the outer conductor shell.
[0015]
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 can be bent and deformed by contacting the outer conductor shell until reaching the locking position. If the structure is provided, the lance part that locks the outer conductor shell and the retainer that locks the relay terminal eliminate the possibility that the relay terminal will come off due to pulling and damage the electrical connector unit. Will increase.
[0016]
According to a fourth aspect of the present invention, if the retainer is provided with a lance restricting portion that restricts the bending deformation of the lance portion that locks the outer conductor shell, the outer conductor shell by the lance portion is provided. The strength of the pull-out against the pulling of the lock increases.
[0017]
Further, according to a fifth aspect of the present invention, if the guide groove and the lance portion are provided so as to face each other in the connector housing, the outer conductor shell locking position by the lance portion and the stabilizer by the retainer are provided. The locking position is opposite to the locking position, and the electric connector unit is not twisted in the connector housing when it is pulled more than when the locking position by the lance part and the retainer is on the same side, and is not easily damaged.
[0018]
Furthermore, if the outer conductor shell is provided with a slit into which the stabilizer of the relay terminal is inserted, the erroneous insertion into the outer conductor shell can be prevented and the outer conductor shell can be made more dielectric. It can be set as the outer conductor shell of the structure which shields to the whole body housing and the shield wire connection part of a relay terminal.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a shield connector according to an embodiment of the present invention will be described in detail with reference to the drawings. Here, the shield connector according to the embodiment is applied to a so-called multi-core shielded cable having a single signal shield cable or a large number of signal lines. In this embodiment, the shield connector is particularly applied to a two-core shielded cable. explain. FIG. 1 is an exploded perspective view of the shield connector 1. The shield connector 1 includes a connector housing 2 and an electrical connector 3 accommodated in the connector housing 2 (consisting of four points: an outer conductor shell 31, a dielectric housing 32, an inner conductor terminal 33, and a relay terminal 34). And a retainer 4 for preventing the housed electrical connector 3 from coming off. In the following description, the fitting direction with a mating shield connector (not shown) is assumed to be the front.
[0020]
First, the electrical connector 3 will be described with reference to FIGS. The electrical connector 3 includes four points: an outer conductor shell 31, a dielectric housing 32, an inner conductor terminal 33, and a relay terminal 34.
[0021]
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 port 33b into which a male terminal of a mating shield connector (not shown) is inserted is provided at the tip of the inner conductor terminal 33, and the male terminal is elastically connected to the male terminal. Elastic contact pieces 33c and 33c that are in contact with each other are provided on the upper and lower sides. In addition, a press contact blade 33a capable of breaking the insulation inner sheath 51b of the signal line 51 of the shielded cable 5 and contacting the inner conductor 51a is provided at the rear portion of the inner conductor terminal 33. Further, an engagement piece 33d cut and raised is provided substantially at the center, and is engaged with an engagement convex portion 32e in the dielectric housing 32 described later to be prevented from coming off.
[0022]
The dielectric housing 32 is formed of a synthetic resin material and has a predetermined dielectric constant. As shown in FIG. 3, terminal accommodating chambers 32a and 32a for accommodating the inner conductor terminals 33 and 33 are provided separated by a partition plate 32f. A male terminal of a mating shield connector (not shown) is inserted in the front part, and insertion ports 32b and 32b for insertion connection to the terminal insertion port 33b of the inner conductor terminal 33 housed in the terminal housing chamber 32a are opened. Is provided. Further, behind the dielectric housing 32, a horizontal plate 32g for fitting a horizontal portion 34a of a relay terminal 34 described later so as to be flush with the outer surface 32h is provided, and a fitting convex portion 32c is provided on the horizontal plate 32g. Protrusively formed.
[0023]
The relay terminal 34 relays and connects the shield wire 52 of the shielded cable 5 and the outer conductor shell 31 described later, and is formed by bending a conductive plate material. A fitting hole 34c that fits into a fitting projection 32c provided on the horizontal plate 32g of the dielectric housing 32 is formed in the horizontal portion 34a. Stabilizers 34b and 34b are provided on the left right side so as to protrude sideways. The stabilizers 34b and 34b are inserted into slits 31d and 31d formed in a slit shape on both side walls behind the outer conductor shell 31 described later. Further, crimping pieces 34d and 34d are provided at the rear portion for crimping and holding the reversing portion 52a in which the shield wire 52 of the end portion of the shielded cable 5 is reversed on the insulating jacket 53.
[0024]
The outer conductor shell 31 covers the outer periphery of the inner conductor terminal 33 connected to the signal line 51 of the shield cable 5 and electromagnetically shields it. The outer conductor shell 31 is formed by bending a conductive plate, and has a substantially rectangular tube shape. An accommodating portion 31e is provided. In the housing portion 31e, a main locking piece 31a and a temporary locking piece 31b that are engaged with the engagement recess 32d of the dielectric housing 32 are provided in the front and rear. In addition, slits 31d and 31d that are notched in a slit shape are formed on both side walls on the rear side of the outer conductor shell 31, and the inserted stabilizer 34b is locked.
[0025]
In assembling these connector members, first, the inner conductor terminals 33 and 33 are accommodated in the terminal accommodating chambers 32 a and 32 a of the dielectric housing 32. At this time, the engagement piece 32d of the inner conductor terminal 33 is fixed to be prevented from coming off by engaging with an engagement protrusion 32e provided to protrude into the storage chamber 32a. 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). Thus, 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.
[0026]
Here, the terminal treatment process of the shielded cable 5 will be specifically described with reference to FIGS. 5A, 5B, and 5C, which are longitudinal sectional views of the electrical connector 3, are shown in the order of FIGS. 6, 7, and 8. FIG.
[0027]
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 inserted into the outer conductor shell 31 to the temporary locking position. The assembly 60 inserted at this time is engaged with the engagement recess 32d provided in the dielectric housing 32 with the temporary locking piece 31b provided on the rear side of the inner wall of the housing portion 31e of the outer conductor shell 31. The assembly 60 is temporarily locked in the outer conductor shell 31.
[0028]
In this temporarily locked state, the shielded cable 5 having the signal wire 51 and the shielded wire 52 exposed by peeling off the insulation jacket 53 at the end of the two-core shielded cable is connected to the assembly 60. As shown in FIG. 5B and FIG. 7, the exposed signal line 51 is pressed into contact with the press contact blade 33 a formed on the inner conductor terminal 33 accommodated and fixed in the dielectric housing 32, respectively. Electrical connection is established by contacting 51a. The exposed shield wire 52 is inverted on the insulation jacket 53, and the inversion portion 52a is held under pressure by the crimping pieces 33d and 34d of the relay terminal 34 positioned and fixed to the dielectric housing 32, whereby 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.
[0029]
Thus, the assembly 60 in which the conductor 51a and the shield wire 52 of the shield cable 5 are connected to each other is inserted further into the back side from the temporarily locked position. As shown in FIGS. 5 (c) and 8, the further inserted assembly 60 is unlocked by the temporary locking piece 31b of the engagement recess 32d provided in the dielectric housing 32, and this time, the front side The main locking piece 31a provided in the is engaged and finally locked. In this way, the assembly 60 is prevented from coming off while being fully locked in the outer conductor shell 31. At this time, the outer surface of the relay terminal 34 is brought into electrical contact with the inner surface of the outer conductor shell 31 by surface contact. As a result, the shield wire 52 of the shield cable 5 is electrically connected to the outer conductor shell 31 via the relay terminal 34.
[0030]
Further, stabilizers 34b and 34b provided in the shape of blades on the left and right of the relay terminal 34 are inserted into slits 31d and 31d formed in the rear side wall surface of the outer conductor shell 31, and are also brought into contact with the front end portion of the slit 31d. The movement in the insertion direction is restricted. In this way, the assembly 60 in the fully locked state is restricted from advancing and retreating in the outer conductor shell 31 and is fixed so as not to come off.
[0031]
As described above, the inner conductor terminal 33 is separated from the outer conductor shell 31 for covering the outer periphery of the inner conductor terminal 33 and the relay terminal 34 that is connected to the shielded cable 5 by crimping. The conductor shell 31 can cover almost completely, and the shielding performance and transmission characteristics are improved.
[0032]
Next, the connector housing 2 and the retainer 4 will be described. As shown in FIGS. 9 to 15, the connector housing 2 is formed integrally with a synthetic resin material in a substantially rectangular parallelepiped shape, and accommodates the above-described electrical connector 3 in the interior thereof, and a mating connector (not shown). Mates with. A hood portion 21 that can accommodate the mating connector is provided at the front portion of the connector housing 2. A tubular connector housing portion 22 is formed from the rear surface of the hood portion 21 toward the rear, and the inner space of the connector housing portion 22 can accommodate the latter half portion of the electrical connector 3. ing. The connector housing portion 22 is opened to the front and rear, and the front thereof communicates with the space in the hood portion 21.
[0033]
From the front end portion of the hood portion 21, a lock portion 23 is provided so as to be able to bend backwards, and a lock projection 23 a is projected at a midway position of the lock portion 23. The lock projection 23a engages with a connector housing of a mating connector (not shown) to keep both connector housings from coming off. Also, a lock release portion 23b is formed at the rear end of the lock portion 23. By pressing the lock release portion 23b, the mating connector is disengaged from the connector housing, and the retaining state is released. The Thereby, it is possible to insert and remove both connectors.
[0034]
The rear of the connector housing portion 22 is a connector insertion port 24. A lance portion 25 protrudes inward from the rear toward the front at substantially the center of the inner wall forming the connector housing portion 22. The lance portion 25 is formed so as to be able to bend and deform in the vertical direction, and engages with the lance engaging portion 31c of the outer conductor shell 31 of the electrical connector 3 to be accommodated to stop the electrical connector 3 from coming off. (See FIG. 15). A pair of guide grooves 26 and 26 are recessed in the left and right side portions of the inner wall that forms the connector housing portion 22 at a position facing the lance portion 25. A stabilizer 34 b of the relay terminal 34 can be inserted into the guide groove 26.
[0035]
Further, a retainer mounting port 27 communicating with the connector housing portion 22 is provided from the wall surface of the connector housing 2 on the lance portion 25 side. The retainer mounting port 27 is formed in a substantially rectangular shape in accordance with the flat cross-sectional shape of the retainer 4 to be described later, and its left and right end portions are retainer engaging grooves 28, and the interior thereof includes front and rear wall surfaces. Two engaging protrusions 28a and 28b are provided so as to protrude. Of these, the rear wall is a temporary engagement protrusion 28a, which holds the retainer 4 in the temporary engagement position. The thing on the front wall is a main engagement protrusion 28b provided at a position deeper than the temporary engagement protrusion 28a, and holds the retainer 4 in the final engagement position. Further, a connector engaging groove 29 that communicates with the guide groove 26 of the connector housing portion 22 is formed inside both the retainer engaging grooves 28, 28. A connector engaging portion 44a of the retainer 4 to be described later can enter the connector housing groove 29.
[0036]
The retainer 4 is integrally formed of a synthetic resin material, and is assembled to the connector housing 2 so as to prevent the electrical connector 3 from coming off. The retainer 4 includes a base 41 formed on the same plane, a pair of engagement leg pieces 42 and 43 extending at right angles from left and right ends of the base 41, and a right angle from the inside of the base 41 rather than both engagement leg pieces. And a pair of left and right central pieces 44 that extend to each other. The base portion 41 is formed in a substantially rectangular shape, and can be accommodated 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.
[0037]
Of the engaging leg pieces 42 and 43 and the central piece 44 formed to extend from the left and right end portions of the base 41 of the retainer 4, the engaging leg pieces 42 and 43 provided at the front and rear are bent and deformed in the closed leg direction. Engagement pawls 42a and 43a are projected at the tips of the leg pieces 42 and 43, and are engaged with engagement protrusions 28a and 28b formed on the inner walls of the retainer engagement grooves 28 and 28, respectively. Engageable. That is, the temporary engagement claw 42a of the rear temporary engagement leg piece 42 engages with the temporary engagement protrusion 28a to hold the retainer 4 in the temporary engagement position (see FIG. 11).
[0038]
The pair of left and right central pieces 44 has a connector engaging portion 44a extending longer than the engaging leg pieces 42 and 43, and can enter the guide groove 26 from the connector engaging groove 29. Has been. In the vicinity of the tip of each connector engaging portion 44a, an interference avoiding groove 44b is formed on the surface side facing each other. The groove width of the interference avoidance groove 44 b is formed substantially equal to the groove width of the guide groove 26. When the retainer 4 is in the temporary engagement position, the interference avoidance groove 44b coincides with the guide groove 26. At this time, the insertion / removal of the electrical connector 3 into / from the connector housing portion 22 is allowed. Further, when the retainer 4 is further pushed in and is in the main engagement position, the interference avoiding groove 44b is moved further to the back than the guide groove 26, so that the guide groove 26 is closed at a midway position. (See FIG. 14 and FIG. 15).
[0039]
Next, a procedure for assembling the electrical connector 3 to the connector housing 2 having such a configuration will be described with reference to FIGS. 15 shows a cross-sectional view after the assembly is completed, but the electrical connector 3 portion in FIGS. 10 to 14 will be described with reference to a relay terminal in order to explain the locking of the retainer 4 to the connector housing 2. Only the cross section of the stabilizer 34b of 34 is shown in figure, and other parts are omitted.
[0040]
First, the retainer 4 is assembled to the connector housing 2 before the electrical connector 3 is assembled. The engaging leg pieces 42 and 43 of the retainer 4 and the connector engaging portion 44a are fitted into the retainer engaging grooves 28 and 28 and the connector engaging groove 29 of the retainer mounting port 27, respectively, and are pressed. When the temporary engagement leg piece 42 is deformed by closing and the temporary engagement claw 42a gets over the temporary engagement protrusion 28a and the temporary engagement leg piece 42 is deformed again, the retainer 4 reaches the temporary engagement position (see FIGS. 10 and 10). 11).
[0041]
Here, insertion of the electrical connector 3 is started from the connector insertion port 24 (see FIG. 11). At this time, in the temporary engagement position, the interference avoiding groove 44b provided in the connector engaging portion 44a coincides with the guide groove 26, and the retainer 4 allows the electric connector 3 to be inserted. The insertion operation of the electric connector 3 proceeds in a state where the outer wall of the accommodating portion 31e of the outer conductor shell 31 bends the lance portion 25 (see FIGS. 11 and 12). When the outer wall of the accommodating portion 31e gets over the lance portion 25, the lance portion 25 is restored and deformed to engage with the lance engaging portion 31c at the rear edge of the accommodating portion 31e, and the outer conductor shell 31 of the electrical connector 3 is moved to the lance portion. 25 (see FIGS. 13 to 15).
[0042]
At the same time that the outer conductor shell 31 advances while the lance portion 25 is bent, the stabilizer 34b of the relay terminal 34 provided in the electrical connector 3 is inserted into the guide groove 26 of the connector housing 2, and the guide groove 26 (See FIGS. 11 and 12). Then, the lance engagement portion 31c at the rear edge of the outer conductor shell 31 that has passed over the lance portion 25 is engaged with the restored lance portion 25, and the stabilizer 34b of the relay terminal 34 is in contact with the front end of the guide groove 26. The progress is regulated (see FIG. 13).
[0043]
In this state, the retainer 4 is further pushed to bring the main engagement claw 43a and the main engagement protrusion 28b into contact with each other, and the main engagement leg piece 43 is bent and deformed in the closed leg direction. When the main engagement claw 43a gets over the main engagement projection 28b, the main engagement leg piece 43 is restored and deformed, and the main engagement claw 43a and the main engagement projection 28b engage with each other, so that the retainer 4 is fully engaged. To the position (see FIGS. 14 and 15). At this time, the connector engaging portion 44a of the retainer 4 is in a state where the interference avoiding groove 44b is pushed to a position displaced from the guide groove 26, whereby the stabilizer 34b of the relay terminal 34 is moved back and forth. Be regulated. Further, since the base portion 41 of the retainer 4 is positioned outside the lance portion 25 so as to cover the lance portion 25 in the space of the retainer mounting port 27, the deformation of the lance portion 25 is restricted by the base portion 41. It will be. Thus, the electrical connector 3 is prevented from being detached by the lance portion 25 and the retainer 4.
[0044]
The electrical connector 3 housed in the connector housing 2 is thus prevented from coming off by the outer conductor shell 31 provided being engaged with the lance portion 25, and the relay terminal 34 is moved back and forth in the guide groove 26 by the retainer 4. Since the movement of the electric connector 3 is fixed in a restricted state, the electric connector 3 is prevented from being pulled out by pulling the shield cable 5, and the electric connector 3 after being accommodated in the connector housing 2 is shielded. Even if an external force such as bending of the cable 5 is applied, wobbling in the connector housing 2 is restricted by the stabilizer 34b of the relay terminal 34, so that the connecting portion between the inner conductor terminal 33 and the signal line 51 (in this case, A load is not applied to the contact portion between the press contact blade 33a and the conductor 51a, and connection reliability is improved.
[0045]
Further, 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 electrical connector 3 into the connector housing 2 during assembly. it can. Further, after the electrical connector 3 is inserted into the connector housing 2, when the retainer 4 is pushed in and finally engaged, the electrical connector 3 is half inserted, that is, the stabilizer 34 b of the relay terminal 34 is still in the interference avoiding groove. Since the retainer 4 cannot be pushed to the full engagement position if it is located within 44b, it can be detected that the electrical connector 3 is in a half-inserted state. Further, when the relay terminal 34 is in a half-inserted state with respect to the outer conductor shell 31, even if the lance portion 25 is engaged with the lance engagement portion 31c at the rear edge of the outer conductor shell 31, the stabilizer of the relay terminal 34 is used. Since 34b is not in the normal position of the front end of the guide groove 26, the retainer 4 cannot be pushed to the full engagement position. Thereby, the half insertion of the relay terminal 34 into the outer conductor shell 31 can be detected.
[0046]
The connector housing portion 22 of the connector housing 2 is provided with a guide groove 26 and a lance portion 25 at positions facing each other in the connector housing portion 22. The locking position and the stabilizer 34b locking position by the retainer 4 are opposite to each other, and the electrical power in the connector housing 2 when pulled is greater than when the locking position by the lance 25 and the retainer 4 is on the same side. The connector 3 is prevented from being twisted, and the electrical connector 3 is prevented from being damaged.
[0047]
In addition, since the stabilizer 34b of the relay terminal 34 is inserted into the slit 31d of the outer conductor shell 31 provided in the electrical connector 3 and locked, the error of the relay terminal 34 to the outer conductor shell 31 is prevented. Insertion can be prevented, and the outer conductor shell 31 can be configured to cover the entire inner conductor terminal 33 and the connection portion of the relay terminal 34 with the shield wire.
[0048]
Although one embodiment of the present invention has been described above, the present invention is not limited to such embodiment, and can of course be implemented in various modes without departing from the gist of the present invention. For example, although the female conductor is shown as the inner conductor terminal in the above embodiment, the male and female terminals are not limited according to the present invention.
[0049]
【The invention's effect】
According to the shield connector of the present invention, the electrical connector with improved shielding performance by separating the outer conductor terminal that has been conventionally integrated into two parts, the outer conductor shell and the relay terminal, is provided in the connector housing. Since the stabilizer provided in the relay terminal is engaged and fixed to the retainer in the guide groove provided in the inner wall surface of the connector housing in order to be housed and fixed in the housing, the electrical connector can be pulled out by being pulled or relayed Even if an external force such as bending the shield cable is applied to the electrical connector after it is housed in the connector housing, the relay terminal stabilizer does not wobble within the connector housing. Because it is regulated, no load is applied to the connection between the inner conductor terminal of the electrical connector and the signal line, and connection reliability is improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a shield connector 1 according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of an electrical connector 3 according to an embodiment of the present invention as viewed from the rear.
3 is an exploded perspective view and an external perspective view of an assembly 60 portion of the electrical connector 3 shown in FIG. 2 as viewed from the front.
4 is an exploded perspective view of the assembly 60 and the outer conductor shell 31 of the electrical connector 3 shown in FIG. 3 as viewed from the front.
FIGS. 5A and 5B are diagrams illustrating longitudinal cross-sectional views for sequentially explaining the process of connecting the shielded cable 5 to the electrical connector 3. FIGS.
6 is an external perspective view of the electrical connector 3 in FIG. 5 (a). FIG.
7 is a perspective view showing an external appearance of the electrical connector 3 of FIG. 5 (b). FIG.
8 is a diagram showing an external perspective view of the electrical connector 3 of FIG. 5 (c). FIG.
9 is a detailed external perspective view of the connector housing 2 and the retainer 4 of FIG. 1. FIG.
FIG. 10 is a longitudinal sectional view of the connector housing 2 and the retainer 4 before mounting.
FIG. 11 is a view showing a longitudinal sectional view of the connector housing 2 and the retainer 4 attached to the temporary locking position.
12 is a longitudinal sectional view showing a state of the stabilizer inserted into the 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.
FIG. 15 is a longitudinal sectional view showing a state of the electrical connector that is prevented from being detached by the connector housing 2 and the retainer 4 mounted at the final locking position.
[Explanation of symbols]
1 Shield connector
2 Connector housing
3 Electric connector
4 Retainer
5 Shielded cable
28 Retainer mounting port
28 Retainer engagement groove
29 Connector engagement groove
31 Outer conductor shell
31d slit
32 Dielectric housing
33 Inner conductor terminal
34 Relay terminal
34b Stabilizer
42 Temporary engagement leg
43 engagement leg pieces
44b Interference avoidance groove
51 signal line
52 Shielded wire

Claims (6)

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 the shield is connected to a relay terminal held on the outer surface of the dielectric housing. An electrical connector having a configuration in which an outer conductor shell that is electrically connected to a shield wire of a cable and is in electrical contact with the relay terminal is externally fitted to the dielectric housing is accommodated in the connector housing, and protrudes from the relay terminal. The stabilizer provided is inserted into a guide groove provided on the inner wall surface of the connector housing, and a retainer inserted from a retainer mounting opening formed in a side surface of the connector housing is engaged with the stabilizer, so that the electric A shield connector characterized in that the connector is held so as not to be removable. The retainer inserted from the retainer mounting port of the connector housing is engaged with the stabilizer at a temporary locking position that allows the electrical connector to be accommodated and a pushing position deeper than the temporary locking position. The retainer can be held at each of the main locking positions to be prevented, and in the half insertion state where the electrical connector is not properly accommodated in the retainer, the retainer abuts against the stabilizer and cannot move to the main locking position. The shield connector according to claim 1, further comprising an insertion detection unit. A lance portion for locking the outer conductor shell of the electrical connector is provided in the connector housing so as to be in contact with the outer conductor shell until it reaches the locking position and bendable. The shield connector according to claim 1 or 2. The shield connector according to claim 3, wherein the retainer is provided with a lance restricting portion that restricts bending deformation of the lance portion that holds the outer conductor shell. The shield connector according to claim 3 or 4, wherein the guide groove and the lance portion are provided so as to face each other in the connector housing. The shield connector according to claim 1, wherein the outer conductor shell is provided with a slit into which the stabilizer of the relay terminal is inserted.

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