JP2003272775A - Connector terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector terminal of excellent connection reliability for accommodating an inner conductive terminal electrically connected to a core of a shield wire, in particular, the inner conductive terminal with electronic elements built therein in an accommodation chamber of a dielectric housing with a large locking force, and reducing the stress on the inner conductive terminal when accommodating the inner conductive terminal in the accommodation chamber. <P>SOLUTION: A core connection terminal 20A and a fitting terminal 20B which are electrically connected to a core 11 of a shield wire 10 and constitute the inner conductive terminal 20 with an electronic element C built therein are accommodated in a dielectric housing 30. Projection parts 25 provided on upper edges of side walls 21a and 21b of the terminals 20A and 20B are fitted to fitting parts 35 provided on a wall surface of the accommodation chamber 33, and the terminals 20A and 20B are locked in the accommodation chamber 33 with the electronic element C built therein. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector terminal, and more particularly to an inner conductor terminal electrically connected to a core wire of a shield wire, particularly an inner conductor terminal in which a chip type electronic element is incorporated. The present invention relates to a connector terminal housed in a body housing.

[0002]

2. Description of the Related Art Conventionally, in a commonly used connector terminal, an inner conductor terminal electrically connected to a core wire of a shield wire is locked and fixed in a housing chamber of a dielectric housing when the inner conductor terminal is housed in the housing chamber. As described above, a press-fitting blade is provided. When the inner conductor terminal is inserted into the accommodation chamber of the dielectric housing, the press-fitting blade is press-fitted into the upper wall of the accommodation chamber, and the press-fitting blade is locked to the upper wall, so that the inner conductor terminal is locked in the accommodation chamber. It is supposed to be fixed.

An example of the connector terminal having the above structure will be described with reference to FIGS. 7 and 8. As shown in FIG. 7, this connector terminal includes a core wire connecting terminal 120A electrically connected to the core wire 111 of the shielded wire 110 and a fitting terminal 120B fittingly connected to a mating connector terminal (not shown). An inner conductor terminal 120 composed of two terminal members is housed in a housing chamber 131 of an insulative dielectric housing 130, and the outer conductor shell 14 is provided on the peripheral surface of the dielectric housing 130.
It is characterized in that the shell frame body 141 of 0 is inserted and attached. A chip-type electronic element 150 for adjusting the electrical characteristics of the connector terminal is built in between the core wire connection terminal 120A and the fitting terminal 120B.

Core wire connecting terminal 120A and fitting terminal 120
The press-fitting blade 1 is provided on the upper end of the side wall that is erected on the side edge of the base of B.
21 are respectively projected and are press-fitted into the upper wall of the housing chamber 131 of the dielectric housing 130. Electrodes on each side of the electronic element 140 are placed on the bases of both terminals, and the core wire connection terminal 120A and the fitting terminal 120B are electrically connected via the electronic element 140 by soldering or the like. Are connected in series. Inner conductor terminal 12 composed of these terminal members
When 0 is accommodated in the accommodation chamber 131, both terminals 120A, 1
As the press-fitting blade 121 of 20B is press-fitted into the upper wall of the housing chamber 131, as shown in FIG.
However, it is locked and fixed in the storage chamber 131 with the electronic element 140 built therein.

[0005]

However, in the connector terminal shown in FIG. 7, the press-fitting blade 121 is provided on the upper wall of the accommodation chamber 131 of the dielectric housing 130 into which the press-fitting blade 121 of the inner conductor terminal 120 is press-fitted. Since the press-fitting groove 132 is formed in the passage, it cannot be said that the rear side of the press-fitting blade 121 is completely locked. In some cases,
The press-fitting blade 121 once press-fitted and locked again has its press-fitting groove 13 again.
2 through the inner conductor terminal 12
There is a possibility that 0 may fall out of the accommodation chamber 131.

Further, when the press-fitting blade 121 is press-fitted into the upper wall of the housing chamber 131, a considerable amount of stress load is also applied to the inner conductor terminal 120, so that the inner conductor terminal 120 cannot withstand this load stress. Inconvenience such as being deformed may occur. In particular, in the connector terminal in which the electronic element 150 is built in, a stress load is likely to be applied to the connection part with the electronic element 150 to which the electronic element 150 is soldered or the electronic element 150 itself.
Therefore, there is a possibility that the soldered portion may be broken or the internal circuit of the element may be destroyed.

The problem to be solved by the present invention is to provide an inner conductor terminal electrically connected to a core wire of a shield wire, in particular, an inner conductor terminal in which a chip-type electronic element is incorporated, with a high locking force. Can be accommodated in the housing chamber,
Another object of the present invention is to provide a connector terminal having excellent connection reliability and workability, which can reduce a stress load applied to the inner conductor terminal when the inner conductor terminal is housed in the housing chamber.

[0008]

In order to solve this problem, the connector terminal according to the present invention is, as described in claim 1, electrically connected to a core wire of a shield wire and having an internal electronic element. A connector terminal in which a conductor terminal is housed in a dielectric housing, wherein the inner conductor terminal is a core wire connection terminal electrically connected to the core wire and one electrode of the electronic element, and a mating connector terminal. And a fitting terminal electrically connected to the other electrode of the electronic element,
Protrusions are provided on side wall edges of the core wire connection terminal and the fitting terminal, respectively, and the dielectric housing is fitted with the projections on a wall surface of an accommodation chamber in which the core wire connection terminal and the fitting terminal are accommodated. Is provided, the core wire connecting terminal and the fitting terminal are housed in the accommodating chamber, and the protrusions of the core wire connecting terminal and the fitting terminal are respectively fitted to the corresponding fitting portions of the dielectric housing. Accordingly, the inner conductor terminal is locked in the accommodation chamber of the dielectric housing in a state where the electronic element is connected between the core wire connection terminal and the fitting terminal. Is.

According to this connector terminal, the protrusion provided on the inner conductor terminal is fitted into the fitting portion provided in the accommodation chamber of the dielectric housing, whereby the inner conductor terminal is
It is securely locked in place with a high locking force.
In particular, when accommodating the inner conductor terminal containing the chip-type electronic element, as compared with the case of accommodating the inner conductor terminal in the accommodating chamber via the conventional press-fitting blade, the electronic element and its connection portion are accommodated at the time of accommodation. The applied stress load is greatly reduced.

In this case, according to the second aspect of the present invention, in the inner conductor terminal, the core wire connecting terminal and the fitting terminal are preliminarily integrally connected via the bridge portion, and the inner conductor terminal is a dielectric body. If the bridging portion is cut out while being locked and fixed in the housing chamber of the housing, the stress load applied to the electronic element or the like during cutting is extremely small.

Further, in this case, as described in claim 3, the bottom wall of the accommodation chamber of the dielectric housing is formed such that the accommodation port side of the accommodation chamber is elastically deformable in the vertical direction. For example, when the inner conductor terminal is inserted into the accommodation chamber, the bottom wall of the accommodation chamber bends downward so that the inner conductor terminal is smoothly accommodated in the accommodation chamber. Further, since the protrusion of the inner conductor terminal is prevented from coming into contact with the wall surface of the accommodation chamber, when the inner conductor terminal is accommodated in the accommodation chamber, the inner conductor terminal, in particular, the inner conductor terminal is mounted. Almost no stress is applied to the electronic element and its connecting portion.

Further, in this case, as described in claim 4, the bottom wall surface of the accommodation chamber of the dielectric housing is opened, and the bottom plate for closing the opening surface is the both edges of the bottom wall of the accommodation chamber. It is slidably mounted on a guide rail formed on the base plate, or as described in claim 5, a protrusion is provided on one of the bottom wall open edge or the bottom plate of the accommodation chamber of the dielectric housing, and the other is provided on the other. The bottom plate may be attached to the dielectric housing by fitting in the formed recess. In either case, the bottom plate is smoothly attached to the bottom wall open surface of the accommodation chamber of the dielectric housing, and no stress is applied to the accommodated inner conductor terminals.

Further, according to a sixth aspect of the present invention, a terminal which is in contact with an inner conductor terminal accommodated in the bottom surface of the accommodation chamber of the dielectric housing and locks the rearward movement of the inner conductor terminal. If the locking part is provided, even if the protruding part of the inner conductor terminal falls off from the fitting part of the accommodation chamber or is damaged, the inner conductor terminal will be locked by the terminal locking part. As long as this is done, the situation of falling out of the containment room is surely prevented.

Further, in the connector terminal in which the core wire connecting terminal and the fitting terminal are integrally coupled via the bridge portion, the inner conductor terminal is housed in the housing chamber as described in claim 7. If the exposed portion is formed on the dielectric housing for cutting the bridge portion, the bridge portion to be cut can be easily visually confirmed, and thus erroneous cutting is unlikely to occur. Further, since the dielectric housing is previously opened as an exposed portion, only the bridge portion needs to be cut off at the time of cutting, and chips are hardly generated.

The connector terminal according to the present invention is not limited to the electronic element built-in type, but as described in claim 8, it can be applied to an electronic conductor terminal having no electronic element built therein. In this case as well, similar to the above-described electronic element built-in type connector terminal, the projection of the inner conductor terminal is fitted into the fitting portion of the dielectric housing, so that the inner conductor terminal is at a predetermined position in the accommodation chamber. It is locked and fixed to and is stored with good positioning.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A connector terminal according to an embodiment of the present invention will be described in detail below with reference to the drawings.
INDUSTRIAL APPLICABILITY The connector terminal according to the present invention is particularly useful when accommodating an inner conductor terminal in which a chip-type electronic element is housed in a dielectric housing. Describe the terminals. However, it goes without saying that the connector terminals according to the following embodiments can be applied regardless of whether or not an electronic element is built in.

(Embodiment 1) A connector terminal according to Embodiment 1 of the present invention is shown in FIG. 1 as an exploded perspective view. The connector terminal includes an inner conductor terminal 20 connected to the core wire 11 of the shielded wire 10, a dielectric housing 30 that accommodates the inner conductor terminal 20, and an outer conductor shell 40 that is inserted around the dielectric housing 30. Composed. In the inner conductor terminal 20,
A chip-type electronic element C (hereinafter, simply referred to as “electronic element”) is connected for the purpose of adjusting the electrical characteristics of the connector terminal. The members constituting the connector terminal according to this embodiment will be individually described below.

The inner conductor terminal 20, as shown in FIG. 2, is connected to the core wire 11 of the shielded wire 10 and the core wire connection terminal 20.
A and a mating terminal 20B that is matingly connected to a mating connector terminal (not shown). The two terminals are integrally coupled to each other on the side walls 21a and 21b via a bridge portion 22.

Further, an element connecting portion 24 to which the electronic element C is connected is provided across the base portions 23a and 23b of both terminals. The element connecting portion 24 includes the base portions 23a, 23
It is formed by bending the end portion of b. Electronic element C
Is contacted with the element connecting portion 24 from the lower surface side, and the electrodes (hatched portions in FIG. 2) on both sides are connected to the element connecting portion 24 by soldering or the like. At this time, the electronic device C
Are housed so as not to project below the base portions 23a and 23b.

Further, the core wire connection terminal 20A and the fitting terminal 2
On the upper edge of each of the side walls 21a and 21b of 0B, an upward projecting projection 25 is provided upright. The protruding portion 25 is fitted into a fitting portion 35 provided on the upper wall of the accommodation chamber 33 of the dielectric housing 30 described later, and has a role of locking both terminals 20A and 20B in the accommodation chamber 33.

Further, on the rear end side of the core wire connecting terminal 20A,
A core wire barrel 26, which is a pair that holds the core wire 11 of the shielded wire 10 in a fixed manner, is erected. One mating terminal 20B
Is a fitting formed by an elastic pair for fitting and connecting a protective portion 27 that comes into contact with the inner side edge of the housing chamber 33 of the dielectric housing 30 that is housed and a mating (male) connector terminal (not shown). A piece 28 is provided.

As shown in FIG. 1, the dielectric housing 30 includes a terminal accommodating portion 31 for accommodating the inner conductor terminal 20, and a flange portion 32 that abuts against an end edge of the shell frame body 41 of the outer conductor shell 40. ing.

In the terminal accommodating portion 31, as shown in FIG.
An accommodating chamber 33 that accommodates the inner conductor terminal 20 is provided. The bottom wall 34 of the accommodation chamber 33 is provided with the accommodation port 33 of the accommodation chamber 33.
Both sides are cut out from the accommodation port 33a side so that the a side can be elastically deformed in the vertical direction.

A fitting portion 35 for fitting the protruding portion 25 of the inner conductor terminal 20 is provided on the upper wall surface of the accommodation chamber 33. In the figure, only the fitting portion 35 on one side is shown. An exposed portion 36 that opens the inside of the accommodation chamber 33 is formed by cutting out both side walls and an upper wall of the terminal accommodation portion 31 between the fitting portions 35 located at the front and rear. The exposed portion 36 is formed so that the bridge portion 22 of the inner conductor terminal 20 to be housed is exposed and a cutting tool for cutting the bridge portion is inserted.

Although not shown in FIG. 3, a locking piece 4 of an outer conductor shell 40, which will be described later, is provided on the lower surface of the bottom wall 34.
An engagement recess 37 that engages 3 is formed (see FIG. 4). Further, the flange portion 32 is formed with an insertion opening 38 through which the mating (male) connector terminal is inserted.

The outer conductor shell 40, as shown in FIG.
The dielectric housing 30 includes a shell frame 41 inserted into the peripheral surface of the terminal accommodating portion 31, and a braid barrel 42 that holds the peripheral surface of the braided wire 13 of the shielded wire 10 in place.

The shell frame 41 has one end serving as an insertion port for the dielectric housing 30 and the other end serving as an insertion port for the shield wire 10. Further, on the bottom wall of the shell frame 41, a locking piece 43 that is engaged with the engagement recess 37 of the dielectric housing 30 is provided.
It is formed by cutting and raising it diagonally backward.

As shown in FIG. 1, the shielded wire 10 connected to the connector terminal has a core wire 11 formed by bundling a plurality of copper wires, and an insulating inner cover made of an insulating resin material covering the peripheral surface of the core wire 11. 12, a braided wire 13 formed by knitting fine metal wires covering the peripheral surface of the wire 12, and an insulating jacket 14 made of an insulating resin material covering the peripheral surface. At the time of connection with the connector terminal, the end portion of the shielded wire 10 was hierarchically exposed in the order of the core wire 11, the insulating inner jacket 12, and the braided wire 13, and the exposed braided wire 13 was folded back onto the insulating jacket 14. State.

The process of assembling the connector terminal and the process of connecting the connector terminal and the shield wire 10 will be described below with reference to FIGS.

First, the electronic element C is connected to the inner conductor terminal 20. Specifically, the electronic element C is provided on the lower surface of the element connecting portion 24.
Are brought into contact with each other, the electrodes on each side of the electronic element C and the terminals 20A,
The element connecting portion 24 on the 20B side is connected by soldering (see FIG. 2).

Next, the inner conductor terminal 20 and the core wire 11 of the shielded wire 10 are connected. At the time of connection, as shown in FIG. 1, the inner conductor terminal 20 is provided on the peripheral surface of the core wire 11 in the exposed state.
The core wire barrel 26 is held in place.

Next, the inner conductor terminal 20 is housed in the housing chamber 33 of the dielectric housing 30. The step of housing the inner conductor terminal 20 will be described with reference to FIG. Note that FIG.
In FIG. 3, the shielded wire 10 connected earlier is omitted.

First, the inner conductor terminal 20 is inserted into the accommodation chamber 33 through the accommodation opening 33a (see FIG. 4A). When the inner conductor terminal 20 is inserted while being pressed downward, the bottom wall 34 of the accommodating chamber 33 is bent and deformed downward with the back side of the accommodating chamber 33 as a fulcrum, and the accommodating port 33a expands in the height direction (Fig. 4 (b)
reference). This allows the inner conductor terminal 20 to be pushed further inward without the protrusion 25 of the inner conductor terminal 20 contacting the upper wall surface of the accommodation chamber 33.

The protective portion 27 of the inner conductor terminal 20 is provided in the accommodation chamber 3
When the downward pressing is stopped at the position where it abuts against the inner edge of 3, the bottom wall 34 having elasticity returns to its original position by its restoring force. At this time, the protrusion 25 of the inner conductor terminal 20
Is fitted into the fitting portion 35 provided on the upper wall of the accommodation chamber 33 (see FIG. 4C). As a result, the inner conductor terminal 2
0 is locked in the rearward movement and is stably fixed and held in the accommodation chamber 33.

Further, at this time, the bridge portion 22 for connecting the core wire connecting terminal 20A constituting the inner conductor terminal 20 and the fitting terminal 20B is formed with the exposed portion 36 formed in the terminal accommodating portion 31 of the dielectric housing 30. It is exposed from. By the above steps, the work of housing the inner conductor terminal 20 in the housing chamber 33 is completed.

Next, the bridging portion 22 of the inner conductor terminal 20 exposed from the exposed portion 36 is cut off. The means for cutting off the bridging portion 22 is not particularly limited. For example, exposed part 3
It may be a means for introducing a cutting blade from above 6 to cut it off. Alternatively, for example, a mold is inserted between the bridging portions 22 on both sides, and the cutting blade is introduced from both sides with the mold as an underlay. It may be a means for excision by cutting, and various selections are possible. Further, the cutting position may be any position on the bridge portion 22 (for example, the hatched portion in FIG. 4C).

At the time of excision, some stress load may be applied to the inner conductor terminal 20, but as described above, since the inner conductor terminal 20 is fixedly held in the accommodation chamber 33,
The stress load on the connection with the electronic element C and the electronic element C itself is extremely small.

When the bridging portion 22 is cut off, the core wire connecting terminal 20A and the fitting terminal 20B are electrically connected only via the electronic element C connected to the element connecting portion 24. Even after the bridge portion 22 is cut off, the core wire connection terminal 20A and the fitting terminal 20
Since they are locked and fixed by the protrusions 25 provided on each of the Bs, the connected state of the electronic element C is maintained as it is.

Next, the outer conductor shell 40 loosely inserted into the shield wire 10 in advance is attached to the peripheral surface of the terminal accommodating portion 31 of the dielectric housing 30. Specifically, as shown in FIG. 1, the dielectric housing 30 is inserted through the front insertion opening of the shell frame 41, and the flange portion 32 of the dielectric housing 30 is brought into contact with the end edge of the shell frame 41. Let At this time,
The engagement piece 43 formed on the bottom wall of the shell frame 41 is engaged with the engagement recess 37 on the lower surface of the terminal accommodating portion 31. As a result, the dielectric housing 30 is locked and fixed in the shell frame 41 in both the pushing direction and the pulling direction.

Finally, the braided barrel 4 of the outer conductor shell 40.
By means of 2, the braided wire, which is folded back to the side of the insulating jacket 14 of the shielded wire 10, is held by being sandwiched. Through the above steps, the assembly of the connector terminal and the connection between the connector terminal and the shielded wire 10 are completed.

As described above, in the connector terminal according to this embodiment, when the inner conductor terminal 20 is housed in the housing chamber 33, the bottom wall 34 is elastically deformed so that the housing port 33a is expanded. Therefore, the protrusion 25 of the inner conductor terminal 20 does not come into contact with the upper wall surface of the accommodation chamber 33. As a result, the inner conductor terminal 20 can be housed in the housing chamber 33 without applying a stress load to the electronic element C built in the inner conductor terminal 20 and its connecting portion.

In the present embodiment, the work of cutting off the bridging portion 22 of the inner conductor terminal 20 was performed when the inner conductor terminal 20 was housed in the housing chamber 33. It is not limited. That is, for example,
It is also possible to cut off the bridging portion 22 when the outer conductor shell 40 is attached to the peripheral surface of the dielectric housing 30. However, in this case, an exposed portion similar to the exposed portion 36 of the dielectric housing 30 is also located in the shell frame 41 of the outer conductor shell 40 at the same position as the exposed portion 36 of the dielectric housing 30 in the inserted state. It is desirable that they are provided so as to overlap with each other.

(Second Embodiment) A connector terminal according to a second embodiment of the present invention will be described with reference to FIG. Compared to the first embodiment, this connector terminal has a dielectric housing 3
It is characterized by the structure of 0. Hereinafter, the configuration of the dielectric housing 30 will be mainly described, and description of the other constituent members of the connector terminal will be omitted.

The connector terminal according to this embodiment is shown in FIG.
As shown in (a), the storage chamber 3 of the dielectric housing 30.
The bottom wall surface of 3 is open, and a bottom plate 50 that closes the open surface is provided as a member separate from the dielectric housing 30.

The dielectric housing 30 has a terminal accommodating portion 31.
And a flange portion 32. A fitting portion 35 into which the protrusion 25 of the inner conductor terminal 20 is fitted is formed on the upper wall surface of the accommodation chamber 33 of the terminal accommodation portion 31. The fitting portion 35 is formed so as to penetrate the upper wall surface of the accommodation chamber 33. As a result, the protrusion 25 of the inner conductor terminal 20 is formed.
The fitting position of can be easily visually confirmed from above through the fitting portion 35.

An exposed portion 36 that opens the inside of the accommodation chamber 33 is formed between the front and rear fitting portions 35 by cutting out both side walls and the upper wall of the terminal accommodation portion 31. The exposed portion 36 is formed at a position where the bridge portion 22 of the inner conductor terminal 20 to be housed is exposed, as in the first embodiment.

A terminal for preventing the inner conductor terminal 20 from dropping from the accommodation chamber 33 by contacting the upper end of the accommodation port 33a of the accommodation chamber 33 with the rear end of the accommodated inner conductor terminal 20. The locking portion 33b is provided.

Guide rails 39 for slidably mounting a bottom plate 50, which will be described later, on the dielectric housing 30 are formed on both edges of the bottom wall of the housing chamber 33 in the longitudinal direction of the housing chamber 33. . The guide rail 39 and the bottom plate 50 attached to the guide rail 39 shown in FIG. 5 are merely examples, and various forms are applicable. However, since the inner conductor terminal 20 accommodated in the accommodation chamber 33 is inserted from the lower side of the dielectric housing 30A, the distance between the guide rails 39 on both sides is substantially equal to the lateral width of the inner conductor terminal 20, Alternatively, the condition is that it is wider than that.

As shown in FIG. 5B, the top surface of the bottom plate 50 serves as the insertion surface for the inner conductor terminals 20. This bottom plate 5
At 0, protruding insertion portions 51 that are inserted into the guide rails 39 of the dielectric housing 30 are extended to both side edges on the upper surface side.

The process of accommodating the inner conductor terminal 20 in the dielectric housing 30 will be briefly described. First, the inner conductor terminal 20 is inserted from the opening below the accommodating chamber 33 of the dielectric housing 30 and the upper end thereof is inserted. It is brought into contact with the upper wall of the storage chamber 33. At this time, the protrusion 25 provided on the inner conductor terminal 20 is fitted into the fitting portion 35 formed on the upper wall of the accommodation chamber 33 (see FIG. 5B).

Next, the bottom plate 50 is slid and inserted to the position where it abuts on the flange portion 32 so that the insertion portion 51 thereof is inserted into the guide rail 39 of the dielectric housing 30. As a result, the bottom plate 50 is mounted on the dielectric housing 30 with the inner conductor terminal 20 placed on the upper surface thereof.

Next, the bridging portion 22 of the inner conductor terminal 20 exposed from the exposed portion 36 of the terminal accommodating portion 31 is cut off by inserting a cutting tool such as a cutting blade. As a result, the inner conductor terminal 2
The core wire connection terminal 20A and the fitting terminal 20B forming 0 are electrically connected in series via the electronic element C. Through the above steps, the dielectric housing 3 of the inner conductor terminal 20
The process of accommodating 0 is completed. Note that, also in this embodiment, the work of cutting off the bridge portion 22 is performed by the dielectric housing 3
Alternatively, it may be performed after mounting an outer conductor shell (not shown) at 0.

In the connector terminal according to this embodiment,
The inner conductor terminal 20 has a housing chamber 33 of the dielectric housing 30.
The bottom plate 50 is slidably mounted on the dielectric housing 30. Accordingly, when the inner conductor terminal 20 is housed in the housing chamber 33, there is almost no stress load applied to the inner conductor terminal 20, particularly the electronic element C and its connecting portion. In addition, the bottom plate 50
The inner conductor terminals 20 that are smoothly inserted into the dielectric housing 30 and accommodated therein are not stressed, and the connected state of the electronic element C is stably maintained.

The inner conductor terminal 20 accommodated in the accommodating chamber 33 is fitted with the projection 25 thereof,
It is fixedly held in the accommodation chamber 33, and further comes into contact with the terminal locking portion 33b provided in the accommodation opening 33a of the accommodation chamber 33, so that the backward pull-out is surely prevented (FIG. 5).
(See (b)). That is, even if the protruding portion 25 is inadvertently detached from the fitting portion 35 or damaged, so that the locking function is no longer fulfilled, the inner conductor terminal 2 is prevented.
As long as 0 is locked by the terminal locking portion 38, the function as a connector terminal is maintained.

(Embodiment 3) A connector terminal according to this embodiment will be described with reference to FIG. This connector terminal is also characterized by the structure of the dielectric housing 30. Below,
The configuration of the dielectric housing 30 will be mainly described, and description of the other constituent members of the connector terminal will be omitted.

Also in the connector terminal according to this embodiment, the bottom wall surface of the accommodation chamber 33 of the dielectric housing 30 is open,
The bottom plate 60 that closes this open surface is the dielectric housing 3
It is provided as a member different from 0.

The dielectric housing 30 has a terminal accommodating portion 31.
And a flange portion 32. On the upper wall surface of the accommodation chamber 33 of the terminal accommodating portion 31, a fitting portion 35 for fitting the protrusion 25 of the inner conductor terminal 20 is formed in a state of penetrating the upper wall, as in the second embodiment. There is.

An exposed portion 36 that opens the inside of the accommodation chamber 33 is provided between the front and rear fitting portions 35, and a position where the bridge portion 22 of the inner conductor terminal 20 accommodated is exposed.
It is formed by cutting out both side walls and the upper wall of the terminal accommodating portion 31.

A terminal for preventing the inner conductor terminal 20 from falling off from the accommodation chamber 33 by contacting the rear end of the inner conductor terminal 20 accommodated in the upper end of the accommodation port 33a of the accommodation chamber 33. The locking portion 33b is provided.

Further, an opening edge of the bottom wall of the accommodation chamber 33 is fitted into a recess 61 of a bottom plate 60, which will be described later, so that the bottom plate 60 can be fitted and attached to the dielectric housing 30 from the lower side. A convex portion 62 is provided. The bottom plate 60 side may be a convex portion and the one dielectric housing 30 side may be a concave portion. Further, although the shape of the convex portion 62 is cylindrical,
It may have any shape. Further, the number of convex portions 62 provided is not limited to that shown in FIG.

The upper surface of the bottom plate 60 has the inner conductor terminal 20.
It becomes the insertion surface of. The bottom plate 60 has a recess 61 for fitting the protrusion 62 of the dielectric housing 30. In addition, in this embodiment, the concave portion 61 has a penetrating shape, but the upper surface not penetrated may have a concave shape.

The process of accommodating the inner conductor terminal 20 in the dielectric housing 30 will be briefly described. First, the inner conductor terminal 20 is introduced into the accommodating chamber 33 from the bottom wall open surface of the accommodating chamber 33 of the dielectric housing 30. And the upper end thereof is brought into contact with the upper wall surface of the accommodation chamber 33. At this time, the inner conductor terminal 2
The protrusion 25 provided at 0 is fitted to the fitting portion 35 formed on the upper wall surface of the accommodation chamber 33.

Next, the bottom plate 60 is fitted and attached from below the dielectric housing 30 to the open edge of the bottom wall of the accommodation chamber 33 so that the projection 62 of the dielectric housing 30 is fitted into the recess 61 thereof. . As a result, the bottom plate 60 has the dielectric housing 30 with the inner conductor terminals 20 placed on the top surface thereof.
Be attached to.

Next, similarly to the second embodiment, the exposed portion 36 is formed.
The bridging portion 22 exposed from is cut off, and the step of housing the inner conductor terminal 20 in the dielectric housing 30 is completed. In addition,
Also in this embodiment, the cutting of the bridge portion 22 may be performed after the outer conductor shell (not shown) is attached to the dielectric housing 30.

Also in the connector terminal according to this embodiment,
Similar to the second embodiment, the inner conductor terminal 20 is housed in the housing chamber 33 from the opening below the housing chamber 33, and then the bottom plate 60 is mounted. For this reason, when the inner conductor terminal 20 is housed in the housing chamber 33, the stress load applied to the built-in electronic element C and its connecting portion is extremely small. Further, the bottom plate 60 mounted from the open surface of the bottom wall of the accommodation chamber 33 can be smoothly mounted on the dielectric housing 30 without applying an excessive stress load to the inner conductor terminals 20.

Further, since the inner conductor terminal 20 is locked by the terminal locking portion 33b provided on the dielectric housing 30 in addition to the fitting and locking of the protrusion 25, the accommodation chamber 3
Fixed within 3 with high reliability. Therefore, the stress load generated when the bridging portion 22 is cut off is not directly applied to the electronic element C and its connecting portion, and the electronic element C
The stable connection state of is guaranteed.

The form of the inner conductor terminal 20 incorporating the electronic element C shown in each of the above embodiments is merely an example. Built-in position of the electronic element C, or the element connection portion 24
The shape and the like are not limited to this, and are applicable to the inner conductor terminals 20 having various forms.

In the above-mentioned embodiment, the concrete example is shown only for the connector terminal incorporating the chip-type electronic element, but as described above, the connector terminal according to the present invention is of a type in which the electronic element is not incorporated. Also applies to

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the shield wire connected to the connector terminal is described as a coaxial type wire made of one core wire, but the shield wire is not limited to this, and has a plurality of core wires. It may be a shielded wire. In that case, it is applicable if the accommodation chambers for the inner conductor terminals and the dielectric housing are provided according to the number of core wires.

Further, the shape or the number of the protrusions provided upright on the inner conductor terminal is not limited to that in the above-mentioned embodiment, and various changes can be made according to the environment of use. Needless to say.

[0071]

According to the connector terminal of the present invention, the protrusion provided on the inner conductor terminal is fitted into the fitting portion formed in the accommodation chamber of the dielectric housing.
The inner conductor terminal is reliably locked and fixed at a predetermined position in the accommodation chamber, and there is a unique effect that a state in which the inner conductor terminal is not dropped from the dielectric housing and excellent in connection reliability is obtained.

Then, as shown as the embodiment, the bottom wall forming the accommodating chamber of the dielectric housing is elastically deformed vertically in the accommodating port side of the accommodating chamber, or
If the bottom wall surface of the accommodation chamber of the dielectric housing is opened, and the bottom plate that closes this opening surface is mounted on the bottom wall surface in a sliding or fitting manner, the inner conductor terminals are
Since it can be accommodated in the accommodating chamber without coming into contact with the wall surface of the accommodating chamber, the stress load on the inner conductor terminal during the accommodating work of the inner conductor terminal is significantly reduced. In particular, in a connector terminal in which a chip-type electronic element is built in, the stress load on the built-in electronic element and its connecting portion is extremely small. Therefore, there is no inconvenience such as the inability to maintain the connection state with the electronic element during the assembly work of the connector terminal, and the workability is excellent.

Also, when using the connector terminals,
Since the inner conductor terminal is housed in the housing chamber of the dielectric housing with a high locking force, the electronic element built in the inner conductor terminal and the connecting portion thereof are sufficiently protected. Therefore, even if an external stress such as vibration is applied, the connection state is stably maintained.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an inner conductor terminal forming the connector terminal shown in FIG.

FIG. 3 is a perspective view showing a part of a terminal accommodating portion of a dielectric housing that constitutes the connector terminal shown in FIG.

FIG. 4 is a cross-sectional view showing fixing of housing the inner conductor terminal in the dielectric housing, (a) showing a state before housing,
It is the figure which showed the state in the middle of accommodation of (b), and the state after (c) accommodation.

5A and 5B are perspective views of a dielectric housing constituting a connector terminal according to a second embodiment of the present invention, where FIG. 5A is a state before accommodating an inner conductor terminal, and FIG. It is the figure which showed the state after doing.

FIG. 6 is a perspective view showing a state before the inner conductor terminals are housed in a dielectric housing that constitutes the connector terminal according to the third embodiment of the present invention.

FIG. 7 is an exploded perspective view showing a connector terminal generally used conventionally.

8 is a cross-sectional view of the connector terminal shown in FIG.

[Explanation of symbols]

10 shielded wire 11 core wire 20 Inner conductor terminal 20A core wire connection terminal 20B mating terminal 22 Bridge 24 element connection 25 Projection 30 Dielectric housing 31 Terminal housing part 33 accommodation room 33a storage port 33b Terminal locking part 34 Bottom wall 35 Fitting part 36 Exposed part 39 Guide rail 40 outer conductor shell 50,60 bottom plate 51 Interposer 61 recess 62 convex C electronic device

Continued front page    (72) Inventor Tomoki Kawamura             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. F-term (reference) 5E021 FA03 FA16 FB11 FC07 FC11                       FC23 FC32 MA01 MA30                 5E087 EE02 EE08 FF06 FF13 FF18                       GG16 JJ09 PP08 RR25

Claims (8)

[Claims] 1. A connector terminal in which an inner conductor terminal electrically connected to a core wire of a shielded wire and containing an electronic element is housed in a dielectric housing, wherein the inner conductor terminal is the core wire and the electronic device. A core wire connecting terminal electrically connected to the electrode on one side of the element, and a mating terminal electrically connected to the mating connector terminal and the electrode on the other side of the electronic element, and the core wire connecting terminal and A protrusion is provided on each side wall edge of the fitting terminal, and the dielectric housing is fitted with the protrusion on a wall surface of an accommodation chamber in which the core wire connection terminal and the fitting terminal are accommodated. Is provided, accommodates the core wire connection terminal and the fitting terminal in the accommodation chamber,
By fitting the protrusions of the core wire connecting terminal and the fitting terminal to the corresponding fitting portions of the dielectric housing, the inner conductor terminal is provided between the electronic element and the core wire connecting terminal and the fitting terminal. A connector terminal, wherein the connector terminal is locked in the accommodation chamber of the dielectric housing in a state of being connected to. 2. The inner conductor terminal is configured such that the core wire connection terminal and the fitting terminal are integrally coupled to each other on both side walls via a bridge portion, and the inner conductor terminal is housed in a housing chamber of a dielectric housing. The connector terminal according to claim 1, wherein the bridge portion is cut off in the opened state. 3. The bottom wall of the accommodation chamber of the dielectric housing in which the inner conductor terminal is accommodated is formed such that the accommodation port side of the accommodation chamber is elastically deformable in the vertical direction. The connector terminal according to claim 1 or 2. 4. A bottom wall surface of an accommodation chamber of the dielectric housing is opened, and a bottom plate closing the opening surface is slidably attached to guide rails formed at both edges of the bottom wall opening of the accommodation chamber. The connector terminal according to claim 1, wherein the connector terminal is a connector terminal. 5. A bottom wall surface of an accommodation chamber of the dielectric housing is opened, a convex portion is provided on either the bottom plate or a bottom wall opening edge, and a concave portion into which the convex portion is fitted. 6. The bottom plate is fitted and attached to the dielectric housing by the projections and the recesses.
Connector terminal described in. 6. The inner conductor terminal accommodated in the accommodating chamber is abutted on the wall surface of the accommodating chamber of the dielectric housing on the accommodating port side to lock the rearward movement of the inner conductor terminal. The connector terminal according to any one of claims 1 to 7, wherein a terminal locking portion is provided. 7. An exposed portion is formed on a wall surface of the accommodation chamber of the dielectric housing for cutting off a bridge portion between the core wire connection terminal and the fitting terminal of the inner conductor terminal to be accommodated. The connector terminal according to claim 2, wherein the connector terminal is a terminal. 8. A connector terminal in which an inner conductor terminal electrically connected to a core wire of a shielded wire is housed in a dielectric housing, wherein a protrusion is provided on an end edge of a side wall of the inner conductor terminal. The dielectric housing is provided with a fitting portion into which the protrusion is fitted on an upper wall of a housing chamber in which the inner conductor terminal is housed, and the inner conductor terminal is housed in the housing chamber. The connector terminal, wherein the inner conductor terminal is locked in the accommodating chamber by fitting the protrusion into the fitting portion.