JP2003264043A - Connector terminal with built-in electronic element and method of incorporating electronic element into connector terminal - Google Patents

Abstract

(57) Abstract: A connector terminal and a connector with a built-in electronic element for facilitating the work of incorporating a chip-type electronic element into a connector terminal and reducing the stress load applied to the chip-type electronic element during the built-in work. To provide a method for incorporating electronic elements into terminals. SOLUTION: It is composed of a core wire connection terminal 20A and a fitting terminal 20B, and both terminals 20A, 20B are bridged portions 21, 2.
The chip-type electronic element C is connected to the lower surfaces of the base portions 22a and 22b of the inner conductor terminal 20 which is integrally connected via the first terminal 1 and the inner conductor terminal 20 is housed in the housing chamber 43 of the dielectric housing 40. Thus, the bridge portions 21 and 21 of the inner conductor terminal 20 are exposed from the open portions 45 and 55 provided on the dielectric housing 40 and the outer conductor shell 50 inserted into the peripheral surface thereof and overlapping each other at the same position. By cutting the parts 21 and 21, the core wire connection terminals 20A
And the fitting terminal 20B are electrically connected via the chip-type electronic element C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector terminal with a built-in electronic element and a method of incorporating an electronic element into the connector terminal. More specifically, the present invention relates to a chip-type inner conductor terminal electrically connected to a core wire end of a coaxial cable. The present invention relates to an electronic element built-in connector terminal capable of adjusting electrical characteristics as an antenna harness by incorporating an electronic element therein, and a method of incorporating an electronic element into the connector terminal.

[0002]

2. Description of the Related Art In recent years, electric signals transmitted to a control printed circuit board in which electronic parts, ICs (integrated circuits) and the like built in electric devices of automobiles such as car navigation systems are built-in are becoming faster (higher frequency). In addition, the circuit pattern of the printed circuit board is also densely packed and densified.

Generally, when transmitting such a high-frequency electric signal, electronic components such as a noise filter for reducing noise and a capacitor or inductor for impedance control enter a cable of a printed circuit board. May be built into the output stage. However, in the case of an antenna harness for a vehicle, for example, the shape and length of the harness differ depending on the vehicle type, and therefore these electronic components built into the printed circuit board also need to be changed accordingly, and the types of the printed circuit board increase accordingly. There was a problem that caused it.

Therefore, the above problems can be solved by incorporating these electronic components in a cable connector or a board connector used for relay connection between a cable and a printed circuit board. Conventionally, various types of connectors in which electronic parts are built in have been proposed.

9 (a) and 9 (b) show a conventional connector terminal having a built-in electronic element. This connector terminal 100
Is connected to the end of the coaxial cable 110, and is configured so that the capacitor 120 is provided as an electronic element inside. To attach the capacitor 120 to the connector terminal 100, first remove the insulating jacket 113 or the like at the end of the coaxial cable 110 to expose the core wire 111, and then solder one of the lead wires of the capacitor 120 to the core wire 111. , And bend the other lead wire forward so that it is parallel to the cable. Braided wire 112
Is the outer conductor shell 1 which is folded back on the insulating jacket 113 of the coaxial cable and provided with a crimping piece 131 at the folded-back portion 114.
Hold 30 in place. And a tubular insulating tube 140
After covering the capacitor 120 so as to cover the capacitor 120, the connector housing 150 is mounted from the front and fitted and fixed to the cover 160 loosely inserted in the cable in advance. A cylindrical inner conductor terminal 170 is integrally fixed to the connector housing 150, and an insertion hole 1 formed at the tip thereof
A lead wire bent in the front of the capacitor 120 is inserted into 71, and solder connection is performed. Then, the remaining portion of the lead wire is cut. In this way, the connection of the coaxial connector 100 having the built-in capacitor 120 is completed.

As an electronic element, there is also known a connector terminal having a built-in chip type electronic element in which electrodes are provided on both side edges without a lead wire. 10 and 11
An example of the connector terminal is shown in (a). The connector terminal 200 includes a core wire connection terminal 220A and a fitting terminal 2 which are electrically connected to a core wire 211 end portion of the coaxial cable 210.
An inner conductor terminal 220 composed of 20B and an inner conductor terminal 22
It is composed of a dielectric housing 230 for accommodating 0 and an outer conductor shell 240 inserted around the dielectric housing 230, and a chip type capacitor is provided as an electronic element inside the connector terminal. In assembling the connector terminals, first, the chip type capacitor 250 is installed on the upper surface of the base of the core wire connecting terminal 220A and the fitting terminal 220B, and the electrodes (hatched portions) on each side of the capacitor 250 are brought into contact with each base. The parts are electrically connected by soldering. A pair of core wire barrels 221L and 221R is provided at one end of the core wire connection terminal, and the coaxial cable 2 exposed by the barrels 221L and 221R is provided.
The end portion of the core wire 211 of 10 is held by being held. Next, the inner conductor terminal 220 is accommodated in the terminal accommodating portion of the dielectric housing 230, and the bridge portions 232 and 232 that integrally couple the core wire connecting terminal 220A and the fitting terminal 220B exposed from the opening 231 of the dielectric housing 230. The chip type capacitor 25 can be obtained by cutting the chip with a cutting tool such as a cutting blade.
Both terminals 220A and 220B are electrically connected via only 0. Then, the outer conductor shell 24 is preliminarily loosely inserted into the coaxial cable 210 on the peripheral surface of the dielectric housing 230.
0 is inserted, and the braid barrels 241L and 241R provided at the end edges of the outer conductor shell 240 are caulked on the peripheral surface of the braided wire 213 which is inverted to the insulating jacket 214 side of the coaxial cable 210. In this way, the connector terminal 200 is completed.

[0007]

However, since the connector terminal shown in FIG. 9 has a large number of parts, the number of processing steps is large, and it is necessary to manually connect the lead wire capacitor by soldering. It is difficult to automate terminal processing. In addition, the insulating tube must be attached so that the lead wire and the outer conductor shell are not short-circuited, which also causes a problem of complicated work. Furthermore, when an external stress such as vibration is applied to the connecting portion between the capacitor and the connector terminal, the soldered portion is broken, resulting in poor contact or disconnection.

The connector terminal incorporating the chip type capacitor shown in FIG. 10 is a chip type capacitor 25.
When the application amount of the solder h used for connecting the one-side electrode of 0 and the fitting terminal 220B is large or the application position is displaced, the mating terminal in front is fitted as shown in FIG. 11 (b). The fitting pieces 223L, 223R side by the capillary force acting on the fitting pieces 223L, 223R made of a pair having elasticity (spring property) (direction of arrow in the figure)
It may be sucked out. If the solder h is solidified between the fitting pieces 223L, 223R side, the fitting pieces 223L, 223R do not function as springs, which causes troubles when fitting and connecting the mating terminals. In addition, the chip type capacitor 250 includes the core wire connecting terminal 220A and the fitting terminal 220B.
Workability is poor because it is installed on the base of the chip capacitor, and the chip capacitor 250 is accidentally cut when the bridge part is cut off because the distance between the bridge part connecting both terminals and the chip capacitor C is narrow. There is a risk of doing it.

The problem to be solved by the present invention is to facilitate the work of incorporating a chip-type electronic element into a connector terminal, and to provide a connecting portion between the connector terminal and the electronic element during the incorporation operation and use of the connector terminal. An object of the present invention is to provide a connector terminal with a built-in electronic element and a method for embedding an electronic element in the connector terminal, which can reduce the stress burden on the electronic element itself.

[0010]

In order to solve this problem, the connector terminal with a built-in electronic element according to the present invention comprises:
As described in (1) above, there is provided an electronic element built-in connector terminal, comprising an inner conductor terminal electrically connected to a core wire terminal portion of a coaxial cable and having a built-in chip type electronic element, wherein the inner conductor terminal is the core wire terminal. Core connection terminal electrically connected to the base part and a mating terminal matingly connected to the mating connector terminal, and both terminals are bridged on the side wall surface erected on both side edges of each base part. And the electrodes on each side of the chip-type electronic element are electrically connected to the lower surface of the base portion of each of the core wire connecting terminal and the fitting terminal, and then the bridging portion is formed. The gist is that the core wire connection terminal and the fitting terminal are electrically connected to each other through a chip-type electronic element by cutting.

According to the above-mentioned connector terminal, the chip-type electronic element is connected to the lower surface of the base portion of each of the core wire connecting terminal and the fitting terminal forming the inner conductor terminal. Connection work such as positioning and soldering can be performed easily. Further, as compared with the conventional case where the chip-type electronic element is connected to the upper surface of the base portion, a wide space is provided between the cutting portion (in this case, the bridge portion) and the chip-type electronic element, so that the bridge portion It is possible to avoid a situation in which the cutting position is accidentally deviated and the chip-type electronic element is accidentally cut when cutting the chip.

Further, the lower surfaces of the base portions of the core wire connecting terminal and the fitting terminal are connected to the electrodes on each side of the chip-type electronic element and are connected to the chip-type electronic element. It is desirable to provide an element connecting portion whose contact surface is formed in a hollow shape. If this element connection portion is provided, the connection position of the chip-type electronic element can be easily visually confirmed, so that the connection between the chip-type electronic element and each terminal is surely made. Further, since the contact surface with the chip-type electronic element is formed in a hollow shape, the chip-type electronic element is always connected to an appropriate position of each terminal, and the connection position is inadvertently displaced to cause a contact failure or the like. Don't worry.

Further, according to a third aspect of the present invention, the dielectric housing having the terminal accommodating portion for accommodating the inner conductor terminal and the outer conductor shell inserted around the dielectric housing are surrounded by the dielectric housing. It is desirable that an open portion is provided that overlaps at the same position in a state where the outer conductor shell is attached to the surface and exposes the bridge portion of the inner conductor terminal accommodated in the terminal accommodating portion. If this open portion is provided, the cross-linking portion of the inner conductor terminal to be cut is exposed, so that the cutting position and the cutting condition can be easily checked visually, and erroneous cutting is less likely to occur. Further, since the cut portion is opened in advance, it is possible to provide a connector terminal which is excellent in workability and hardly produces chips during cutting.

Further, according to a fourth aspect of the present invention, the inner conductor terminal has a notch opening formed by notching and opening ends of both side wall surfaces of the core wire connecting terminal and the fitting terminal located below the bridge portion. It is desirable that the portion is formed. If the lower part of the cross-linking part is widely cut out, the width of the cross-linking part is substantially widened and a wide severable region is secured. As a result, even if the cutting position deviates to some extent, the bridging portion is surely cut, so that it is possible to sufficiently avoid a situation in which both terminals are contact-short-circuited.

According to a fifth aspect of the present invention, the core wire connecting terminal and the fitting terminal forming the inner conductor terminal are press-fitted into the upper wall of the accommodation chamber of the dielectric housing at the upper end edges of both side wall surfaces. It is desirable that a press-fitting blade composed of a pair that locks both terminals in the accommodation chamber be provided upright. If the press-fitting blades are provided upright on each terminal, when the inner conductor terminals are housed in the accommodation chamber of the dielectric housing, these press-fitting blades are press-fitted into the upper wall of the accommodation chamber so that the inner conductor terminals are placed in the accommodation chamber. It is locked and fixed.
This allows the inner conductor terminal to be stably accommodated and held in the dielectric housing even when the chip type electronic element is built into the connector terminal or when the connector terminal is used.
The stress load on the connection between the connector terminal connected to this inner conductor terminal and the electronic element and on the chip-type electronic element itself is greatly reduced, the soldered connection is broken, and the internal circuit of the electronic element is broken. There is no need to worry about being destroyed. This makes it possible to provide a connector terminal with a built-in electronic element, which has excellent connection reliability and workability.

Further, if the press-fitting blade of each terminal is integrally formed over the bridge portion as described in claim 6, the contact area between the press-fitting blade and the upper wall of the terminal accommodating portion, that is, the press-fitting blade. Since the amount of press-fitting of the blade increases, the locking force of each terminal increases, and it is possible to provide a connector terminal with a built-in electronic element, which is more excellent in connection reliability.

According to a seventh aspect of the present invention, there is provided a method of embedding an electronic element in a connector terminal, comprising: a core wire connecting terminal electrically connected to a core wire terminal portion of a coaxial cable;
An inner conductor terminal composed of a mating terminal that is matingly connected to a mating connector terminal, and both terminals are integrally coupled via a bridging portion on side wall surfaces that stand upright on both side edges of each base portion. When incorporating the chip-type electronic element in the connector terminal having the step of connecting the electrodes on each side of the chip-type electronic element to the lower surface of the base portion of the core wire connection terminal and the fitting terminal, and housing the inner conductor terminal Mounting an outer conductor shell on a peripheral surface of a dielectric housing having a housing chamber for storing the inner conductor terminal in the housing chamber;
The gist of the present invention is to cut the bridging portion of the inner conductor terminal that is exposed from the open portions that are respectively provided in the dielectric housing and the outer conductor shell and that overlap at the same position.

According to the method of embedding an electronic element in the connector terminal, after the inner conductor terminal formed by connecting the chip type electronic element is housed in the housing chamber of the dielectric housing, the inner housing is inserted into the dielectric housing and its peripheral surface. It is characterized in that the bridge portion of the inner conductor terminal exposed from the open portion provided so as to overlap at the same position above the outer conductor shell is cut. Therefore, since the bridging portion is cut in a state where the inner conductor terminal formed by connecting and holding the chip-type electronic element is housed and held in the housing chamber, the stress load applied to the chip-type electronic element at the time of cutting the bridging part is reduced. Therefore, it is possible to provide a connector terminal with a built-in electronic element, which has excellent connection reliability and workability.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a connector terminal with a built-in electronic element according to an embodiment of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is an exploded perspective view of a connector terminal with a built-in electronic element according to Embodiment 1 of the present invention. The connector terminal with a built-in electronic element is an inner conductor terminal 20 that is electrically connected to the end portion of the core wire 11 of the coaxial cable 10 and that can house a chip-type electronic element, and the inner conductor terminal 20.
And a dielectric housing 40 that accommodates the dielectric housing 40 and an outer conductor shell 50 that is inserted and attached to the peripheral surface of the dielectric housing 40. In addition, in the present embodiment and the following embodiments,
A chip-type capacitor C whose electric capacity can be adjusted was used as the chip-type electronic element. The features of the constituent members of the connector terminal will be described in detail below.

The inner conductor terminal 20 is a core wire connecting terminal 20A which is electrically connected to the end portion of the core wire 11 of the coaxial cable 10.
And a fitting terminal 20B that is fitted and connected to a mating (male) connector terminal (not shown). These terminals 20A, 20B are side wall surfaces 23, 23 provided upright on the side edges of the respective base portions 22a, 22b,
And 24, 24 are integrally connected via the bridging portions 21, 21 (see FIGS. 1 and 2). In addition,
In this embodiment and the subsequent embodiments, the fitting terminal 20B has a female structure.

On the lower surfaces of the base portions 22a and 22b of the core wire connecting terminal 20A and the fitting terminal 20B, element connecting portions 2 for connecting with electrodes on each side of the chip type capacitor C respectively.
5a and 25b are formed. Element connection parts 25a, 2
5b is formed by extrusion so that the contact surface with the chip-type capacitor C has a hollow shape. Further, the reinforcing projection 26 for reinforcing the base portion 22b from the element connecting portion 25b on the fitting terminal 20B side in the longitudinal direction of the terminal.
Is extended by extrusion so as to be flush with the contact surface of the element connecting portion 25b.

Further, as shown in FIG.
Below 1 is side wall surfaces 23, 23 and 24 of both terminals,
Notch openings 27, 27 are formed by notching 24. In this inner conductor terminal 20, the notch opening 2
7, 27 is a severable portion, that is, a bridging portion 21,
21. Further, the core wire connection terminal 20A and the fitting terminal 2
At the upper edges of the side wall surfaces 23, 23 and 24, 24 of OB, press-fitting blades 28, 28 made of a pair press-fitted into the upper wall of the accommodation chamber 43 of the dielectric housing 40 are provided on the bridge portions 21, 21. Are erected together. In addition, this press-fitting blade 2
The upper edges of the cuttable regions 8 and 28 may be cut out for visual confirmation of the cutting position, for example.

On the rear end side of the core wire connecting terminal 20A,
Core wire barrels 29, 29 are erected to form a pair for sandwiching the exposed end portion of the core wire 11 of the coaxial cable 10 to electrically connect the core wire connection terminal 20A and the cable 10. One of the fitting terminals 20B has elasticity for fitting and connecting the protective portion 30 that comes into contact with the inner edge of the housing chamber 43 of the housing 40 and the (male) connecting terminal of the mating connector (not shown). Fitting piece 31 consisting of a pair of strips,
And 31 are provided.

As shown in FIG. 3, the dielectric housing 40 includes a terminal accommodating portion 41 for accommodating the inner conductor terminal 20, and a flange portion 42 which is engaged with the end edge of the tubular body 51 of the outer conductor shell 50. It consists of As shown in FIG. 3, the terminal accommodating portion 41 includes an accommodating chamber 43 that accommodates the inner conductor terminal 20.
Is provided. An element accommodating groove 44 for accommodating the chip-type capacitor C, which is connected to the lower portion of the inner conductor terminal 20 when accommodating the inner conductor terminal 20, is formed in the bottom wall of the accommodation chamber 43.
Is extended from the edge. Further, the terminal accommodating portion 41 is provided with an opening portion 45 by cutting out the side wall and the upper wall so that the upper portion of the accommodating chamber 43 is opened. Flange part 4
A terminal insertion port 46 for inserting the mating (male) connection terminal is formed in the second member 2. Also, the terminal accommodating portion 4
An engaging recess 47 for engaging a cut-and-raised locking piece 56 formed on an inner bottom surface of an outer conductor shell 50 described later is formed on the bottom wall surface of the No. 1 (see FIG. 4).

The outer conductor shell 50, as shown in FIG.
The dielectric housing 40 is composed of a tubular body 51 that is inserted into the peripheral surface of the terminal accommodating portion 41, and braid barrels 52 and 52 that sandwich and hold the peripheral surface of the coaxial cable 10. One end of the tubular body 51 is an insertion opening 53 through which the dielectric housing 40 is inserted, and the other end is a cable insertion opening 54 whose upper surface is wide open. Further, an opening portion 55 that overlaps at the same position as the opening portion 45 of the dielectric housing 40 described above is formed near the cable insertion port 54 of the tubular body by cutting out the side wall and the upper wall of the tubular body 51. There is.
The dielectric housing 40 is provided on the bottom wall surface of the tubular body 51.
The cut-and-raised locking piece 56, which is engaged with the engaging recess 47 of FIG.
It is formed toward the side.

Further, in the coaxial cable 10 connected to the connector terminal composed of the above-mentioned constituent members, the periphery of the core wire 11 formed by bundling a plurality of copper element wires is covered with an insulating inner cover 12 made of an insulating resin material. However, it has a structure in which the periphery thereof is covered with a braided wire 13 formed by knitting fine metal wires, and the outer periphery of the braided wire 13 is covered with an insulating jacket 14 also made of an insulating resin material (see FIG. 1). At the time of connection with the connector terminal, the cable end portion is 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 is folded back onto the insulating jacket 14.

A process of incorporating the chip type capacitor C in the connector terminal composed of the above-mentioned components will be described with reference to FIGS. First, the exposed core wire 1 of the coaxial cable 10
The coaxial cable 10 and the inner conductor terminal 20 are electrically connected to each other by holding the core wire barrels 28, 28 of the inner conductor terminal 20 on the peripheral surface of 1. Next, the chip-type capacitor C is brought into contact with the recessed contact surfaces of the element mounting portions 25a and 25b of the inner conductor terminal 20 from the lower side, and the element-connecting portions 25a and 25b and the electrodes on each side of the chip-type capacitor C are contacted. (Hatched portion in FIG. 1) are electrically connected to each other by soldering.

On the other hand, the cylindrical body 51 of the outer conductor shell 50 is attached to the peripheral surface of the terminal accommodating portion 41 of the dielectric housing 40. At this time, the flange portion 42 of the dielectric housing 40 is brought into contact with the end edge of the insertion port 53 of the tubular body 51, while the cut-and-raised locking piece 56 of the tubular body 51 is attached to the dielectric housing 40.
Is engaged with the fitting recess 47 of. As a result, the dielectric housing 40 and the outer conductor shell 50 are in a state of being locked to each other in both the pushing and pulling directions. In this inserted state, as shown in FIG. 4, the opening portions 45 and 55 formed in the dielectric housing 40 and the outer conductor shell 50 overlap at the same position.

Next, the inner conductor terminal 20 formed by connecting the chip type capacitor C and the coaxial cable 10 is inserted from the cable insertion port 54 of the cylindrical body 51, and the dielectric housing 40 is inserted.
It is accommodated in the accommodation chamber 43. At the time of accommodation, the inner conductor terminal 20 is inserted until the protective portion 30 at the tip comes into contact with the rear side edge of the accommodation chamber 43, and the chip type capacitor C protruding below the inner conductor terminal 20 is accommodated in the accommodation chamber 43. It is housed in the element housing groove 44 (see FIG. 4). At this time, the press-fitting blades 28, 28 provided upright on the inner conductor terminal 20 are pressed into the upper wall of the accommodation chamber 43, and the inner conductor terminal 20 is locked and fixed in the accommodation chamber 43. In this housed state, the bridge portion 2 of the inner conductor terminal 20
1, 21 are dielectric housing 40 and outer conductor shell 5
It is exposed from the open portions 45 and 55 overlapping with each other (see FIG. 4). Next, the insulation jacket 14 of the coaxial cable 10
The coaxial cable 10 is fixed by sandwiching and holding the braid barrels 52, 52 provided at the rear end of the outer conductor shell 50 on the peripheral surface of the braided wire 13 inverted to the side.

After the above steps, a cutting tool such as a cutting blade is inserted through the open portions 45 and 55 to expose the exposed bridging portions 21 and 21 at appropriate positions (for example, hatched portions in FIG. 4). The cut portion may be located at any position of the bridging portions 21 and 21. Thereby, the inner conductor terminal 20
The core wire connection terminal 20A and the mating terminal 20B constituting the above are electrically connected in series via the chip type capacitor C. Through the above steps, the work of incorporating the chip-type electronic element into the connector terminal is completed.

Even after the bridging portions 21 and 21 are cut, the press-fitting blades 28 and 28 are still press-fitted into the upper wall of the accommodating chamber 43, so that the core wire connecting terminal 20A and the fitting terminal 20B are kept in the accommodating chamber. It is stably locked and held in 43. Therefore, since the terminals 20A and 20B are firmly fixed, the stress load applied to the connection portion with the chip type capacitor C and the chip type capacitor C itself is extremely small, and the connector terminal with a built-in electronic element excellent in connection reliability is provided. can get. Further, in this connector terminal, a wide space is secured between the bridge portions 21 and 21 and the chip type capacitor C,
Even if the cutting position is accidentally shifted when cutting the bridging portions 21 and 21, the risk of cutting even the chip type capacitor C is greatly reduced, and workability is excellent.

(Embodiment 2) A connector terminal with a built-in electronic element according to Embodiment 2 of the present invention will be described with reference to FIGS. This connector terminal with a built-in electronic element is characterized by the element connecting portions 25a and 25b provided on the inner conductor terminal 20 (see FIGS. 5A and 5B).

The element connecting portions 25a and 25b are the base portions 22a and 22 of the core wire connecting terminal 20A and the fitting terminal 20B.
The end portion of b is cut and raised obliquely upward, and the tip end of the cut and raised portion is bent and formed so as to be substantially parallel to the base portions 22a and 22b. The lower surface of the bent tip portion is the contact surface of the chip type capacitor C, and the contact surface has a dented structure. The chip-type capacitor C is connected to the element connecting portions 25a and 25b by soldering at the electrodes on each side while being in contact with the contact surfaces of the element connecting portions 25a and 25b. This inner conductor terminal 20
Is formed deeper than the contact surface of the element connecting portion of the first embodiment, and when the chip type capacitor C is connected to the element connecting portions 25a and 25b, the lower end of the chip type capacitor C is It is located higher than the lower surfaces of the bases 22a and 22b (see FIG. 6).

Further, the side wall surfaces 23, 2 of the core wire connecting terminal 20A and the fitting terminal 20B constituting the inner conductor terminal 20.
Press-fitting blades 28a, 28a and 28b, 28b, which are press-fitted into the upper wall of the housing chamber 43 of the dielectric housing 40, are provided upright on 3, 3 and 24, 24, respectively. The other parts are the same as those of the inner conductor terminal 20 according to the first embodiment, and the description thereof will be omitted.

Further, a dielectric housing 40 for accommodating the inner conductor terminal 20 and an outer conductor shell 50 inserted around the dielectric housing 40.
The description is omitted here as it is similar to that of the first embodiment. However, the dielectric housing 40 has a structure in which the element housing groove 44 (see FIG. 3) is not provided in the lower wall of the housing chamber 43. In the present embodiment, the element housing groove 44 is unnecessary because the chip type capacitor C is used.
This is because the above is accommodated in the element connecting portions 25a and 25b as described above, but the element accommodation groove 44 may be provided.

When incorporating an electronic element in the connector terminal, first, the inner conductor terminal 20 formed by connecting the chip-type capacitor C is housed in the housing chamber 43 of the dielectric housing 40, and then the dielectric housing 40 and the outer conductor shell. The bridge portions 21 and 21 of the inner conductor terminal 20 are exposed from the open portions 45 and 55 of 50. At this time, the inner conductor terminal 20 has the side wall surface 2
3, 23, and 24, 24, press-fitting blades 28a,
When 28a, 28b, and 28b are press-fitted into the upper wall of the accommodation chamber 43, they are locked and fixed in the accommodation chamber 43 (see FIG. 6). Next, after holding the braid barrels 52L and 52R in a fixed manner by holding the braid barrels 52L and 52R on the circumferential surface of the inverted braided wire 13 of the coaxial cable 10, a cutting tool such as a cutting blade is inserted from the open portions 45 and 55. Exposed inner conductor terminal 2
The bridge portions 21 and 21 of 0 are cut at appropriate positions (for example, hatched portions in FIG. 6). As a result, the core wire connection terminal 20A and the fitting terminal 20B are electrically connected only via the chip type capacitor C, and the work of incorporating the chip type capacitor C is completed.

In the connector terminal with a built-in electronic element according to this embodiment, the inner conductor terminal 20 is locked and held in the housing chamber by pressing the press-fitting blade into the upper wall of the housing chamber as in the first embodiment. As a result, the connection state with the chip type capacitor C is stably maintained, so that it is possible to provide a connector terminal with a built-in electronic element having excellent connection reliability. Further, as in the first embodiment, the chip type capacitor C has the base portions 22a and 22b.
Since the chip-type capacitors C are connected to the element connection parts 25a and 25b provided on the bottom surface of the chip-type capacitor C as compared with the case where the chip-type capacitors C are connected to the upper surface of the base part as in the conventional case, A wide space can be secured. As a result, although the gap is narrower than that of the connector terminal according to the first embodiment, the risk of accidental disconnection of the chip type capacitor C is reduced. Furthermore, since this connector terminal has a structure in which the chip-type capacitor C is completely housed in the element connecting portions 25a and 25b, the inner conductor terminal 20 can be easily handled when the connector terminal is assembled, and the workability is excellent. There is.

(Embodiment 3) The connector terminal with a built-in electronic element according to Embodiment 3 of the present invention is characterized by the structure of the inner conductor terminal 20, as shown in FIG. The inner conductor terminal 20 is
Side wall surfaces 23 of the core wire connection terminal 20A and the fitting terminal 20B,
Ceiling surfaces 33, 33 are provided that are bent substantially vertically from the upper ends of 23, 24, 24 and the bridging portions 21, 21 and the edges of the bent portions are in contact with each other. The ceiling surfaces 33, 33 play a reinforcing role against the lateral deformation of the inner conductor terminal 20. The ceiling surfaces 33, 33 are not limited to the shape shown in FIG.
It may be provided only on 1, 21.
Side wall surfaces 23, 23, and 24 of each terminal 20A, 20B,
At the upper edge of 24, press-fitting blades 28a, 28a and 28b, 28b formed by cutting out a part of the ceiling surfaces 33, 33 are provided upright.

Further, the core wire connection terminal 20A and the fitting terminal 2
On the lower surfaces of the base portions 22a and 22b of 0B, the element connecting portion 25 in which the contact surface with the chip-type capacitor C has a hollow shape
a and 25b are formed. This element connecting portion 25a,
The description of 25b is omitted because it is the same as that shown in the first embodiment. The other parts are the same as those shown in the above-mentioned first and second embodiments, and the explanation thereof will be omitted.

The work of incorporating the chip-type capacitor C into the connector terminal is the same as in the above-described embodiment, and the inner conductor terminal 20 formed by connecting the chip-type capacitor C is accommodated in the accommodating chamber 43 of the dielectric housing 40. The bridge portions 21 and 21 of the inner conductor terminal 20 exposed from the openings 45 and 55 (for example, the hatched portion in FIG. 7) are cut together with the ceiling surfaces 33 and 33 using a cutting tool such as a cutting blade, and the chip type capacitor is cut. C
This is done by electrically connecting the core wire connection terminal 20A and the fitting terminal 20B in series via the.

In the connector terminal with a built-in electronic element according to this embodiment, the inner conductor terminal 20 housed in the housing chamber 43 of the dielectric housing 40 has press-fitting blades 28a, 28 at the top.
a, 28b, 28b, and the side wall surfaces 23, 23, and 24, 24, which are reinforced by the ceiling portions 33, 33, contact the inner wall surface of the side wall of the housing chamber 43 in a pressed state, so that the inner conductor The terminal 20 is firmly locked and fixed in the accommodation chamber 43 in any of the up, down, left, and right directions. Therefore, the stress load applied to the connecting portion with the chip type capacitor C and the chip type capacitor C itself when the bridge portions 21 and 21 are cut is extremely small. Further, even after the cutting of the bridging portions 21 and 21, the inner conductor terminal 20 is fixedly held in the accommodation chamber 43 with the same locking force as that before the cutting, so that the connection reliability is extremely excellent. Further, the chip type capacitor C is used as the inner conductor terminal 20.
Since it is connected to the bottom surfaces of the base portions 22a and 22b of the above, the risk of erroneous disconnection of the chip type capacitor C when disconnecting the bridge portions 21 and 21 is reduced.

(Embodiment 4) A connector terminal with a built-in electronic element according to Embodiment 4 of the present invention is also characterized by the structure of the inner conductor terminal, as shown in FIG. This inner conductor terminal 20
The bridging portions 21 and 21 for integrally connecting the core wire connecting terminal 20A and the fitting terminal 20B are bent inwardly in the vicinity of substantially the center, and the tips 21a and 21a of the bent portions are brought into abutting state with each other. is there. When connecting both terminals in series via the chip type capacitor C, the tip portions 21a, 21a are cut off. In addition, the tips 21a, 2
1a has a notched upper end so that the cutting position can be easily confirmed.

The inner conductor terminal 20 provided with the bridging portions 21 and 21 having the above-mentioned shape is capable of adjusting the distance between the core wire connecting terminal 20A and the fitting terminal 20B by changing the inward bending amount. Has become. Specifically, the bending amount of the bridge portions 21 and 21 increases (the tip portion 21
a, 21a), both terminals 20A, 20a
When the distance between the terminals B is narrowed and the amount of bending of the bridge portions 21 and 21 is reduced (the distance between the tip portions 21a and 21a is increased), the distance between the terminals 20A and 20B is increased. With such a structure, the element connecting portions 25a, 25b
Since the space between them can be adjusted, connection with chip-type electronic elements of various sizes (chip-type capacitor C in this embodiment) can be accommodated.

Further, the core wire connection terminal 20A and the fitting terminal 2
The bases 22a and 22b of 0B have the bases 22a and 22b.
An element connecting portion 25 formed by bending opposite ends of b
a and 25b are provided. This element connecting portion 25a,
Since 25b is the same as that shown in the second embodiment, its explanation is omitted. The other parts are the same as those shown in the above-mentioned first to third embodiments, and the explanation thereof will be omitted.

The operation of incorporating the chip-type capacitor C into the connector terminal is the same as in the first to third embodiments, and the inner conductor terminal 20 formed by connecting the chip-type capacitor C to the housing chamber 43 of the dielectric housing 40. Accommodates and opens 45, 55
The tip end portions 21a, 21a of the bridging portions 21, 21 of the inner conductor terminal 20 exposed from the inner conductor terminal 20 are cut by using a cutting tool such as a cutting blade, and the core wire connection terminal 20A is inserted through the chip type capacitor C.
And the fitting terminal 20B are electrically connected in series.

Also in the connector terminal with a built-in electronic element according to this embodiment, the press-fitting blade 28 provided upright on the inner conductor terminal 20.
a, 28a and 28b, 28b are dielectric housings 4
Since the inner conductor terminal 20 is fixedly held in the housing chamber 43 by being press-fitted into the upper wall of the housing chamber 43 of 0, the workability and the connection reliability when the chip type capacitor C is built in the connector terminal are excellent. A connector terminal with a built-in electronic element can be provided. In addition, the chip type capacitor C is the inner conductor terminal 20.
Since it is connected to the lower surfaces of the base portions 22a and 22b of the above, the risk of accidental disconnection of the chip type capacitor C when cutting the bridge portions 21 and 21 (tip portions 21a and 21a) is reduced.

The element connecting portions 25a and 25b, the bridging portions 21 and 21, and the press-fitting blade 2 described in the first to fourth embodiments.
8a, 28a, and 28b, 28b (or 28, 2
8) can be applied to any of the embodiments.

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 connector terminal with a built-in electronic element described in the above embodiment, the chip-type capacitor is used for the purpose of adjusting the electric capacity as a chip-type electronic element built in the inner conductor terminal (core wire connection terminal and fitting terminal), The built-in chip type electronic device is not limited to this, and various electronic devices can be built in depending on the target of adjustment of the electrical characteristics in the intended connector.

The depth of the contact surface with the chip type capacitor C provided in the recess of the element connecting portion is not limited to that shown in the above embodiment, but the dielectric for accommodating the inner conductor terminal is provided. It goes without saying that the structure can be changed as appropriate in relation to the structure of the housing.

Further, the size and shape of the press-fitting blade that is erected on the inner conductor terminal is not limited to that of the above-mentioned embodiment, and various changes can be made within the range where it can be locked in the accommodating chamber. For example, by lowering the height of the press-fitting blade that is erected on the fitting terminal that is first accommodated in the accommodation chamber, and increasing the height of the press-fitting blade that is erected on the core wire connection terminal that is accommodated later, It may be configured to further increase the locking force of the press-fitting blade on the core wire connection terminal side.

[0052]

In the connector terminal with a built-in electronic element according to the present invention, since the chip type electronic element capable of correcting the electrical characteristics such as the electric capacity is connected to the lower surface of the base portion of the inner conductor terminal,
A wide space can be secured between the chip-type electronic element and the bridge portion that integrally connects the core wire connection terminal and the fitting terminal that form the inner conductor terminal. As a result, the risk of accidentally shifting the cutting position when cutting the bridging portion and accidentally cutting even the chip-type electronic element is significantly reduced. Also,
Since the chip-type electronic element is connected from the lower surface side of the base portion, the connection of the chip-type electronic element can be surely performed, so that there is no fear that the connection position is inadvertently displaced and contact failure occurs. Also, connection work such as soldering is easy. As a result, it is possible to provide a connector terminal with a built-in electronic element, which is extremely excellent in connection reliability and workability.

Further, the chip-type electronic element is connected to the chip-type electronic element by providing a device-connecting portion having a concave contact surface with the chip-type electronic element at the connection position on the lower surface of the base of the inner conductor terminal. The positioning at this time becomes more reliable, and it is possible to provide a connector terminal with a built-in electronic element, which is further excellent in connection reliability.

Further, in a state where the inner conductor terminal is housed in the housing chamber of the dielectric housing, the inner surface is opened from the open portions which are provided in the dielectric housing and the outer conductor shell inserted in the peripheral surface of the outer housing and overlap at the same position. If the bridging portion of the conductor terminal is exposed, the bridging portion can be cut by introducing a cutting tool such as a cutting blade from the open portion while the inner conductor terminal is housed and held in the housing chamber. Therefore,
Even if a stress load is applied to the connector terminal when the bridge portion is cut, there is no fear that an excessive stress load will be applied to the chip-type electronic element connected to the inner conductor terminal fixedly held in the housing chamber. Further, since the bridging portion is cut from this open portion, chips are hardly generated during cutting, and workability is excellent.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a connector terminal with a built-in electronic element according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the inner conductor terminal shown in FIG.

3 is a perspective view of the dielectric housing shown in FIG. 1. FIG.

FIG. 4 is a cross-sectional view of a connector terminal with a built-in electronic element showing a state where the constituent members shown in FIG. 1 are assembled (state before cutting a bridging portion).

FIG. 5 is a perspective view showing an inner conductor terminal that constitutes an electronic element built-in connector terminal according to a second embodiment of the present invention;
(A) is a figure showing the state before connecting a chip type electronic element, and (b) is a figure showing the state after connecting a chip type electronic element.

6 is a cross-sectional view showing a connector terminal with a built-in electronic element, which is obtained by incorporating the inner conductor terminal shown in FIG.

FIG. 7 is a perspective view showing an inner conductor terminal which constitutes an electronic element built-in connector terminal according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing an inner conductor terminal forming an electronic element built-in connector terminal according to a fourth embodiment of the present invention.

9A and 9B are views showing a connector terminal having a built-in electronic element generally used in the related art, where FIG. 9A is an exploded perspective view of the connector, and FIG. 9B is a sectional view showing a state in which a coaxial cable is connected to the connector. is there.

FIG. 10 is an exploded perspective view showing another connector terminal incorporating an electronic element generally used in the past.

11 (a) is a perspective view of the inner conductor terminal shown in FIG. 10, and FIG. 11 (b) is a plan view showing a state in which a connecting portion between the inner conductor terminal and an electronic element is soldered.

[Explanation of symbols]

C Chip type capacitor 10 Coaxial cable 11 Core wire 20 Inner conductor terminal 20A Core wire connecting terminal 20B Fitting terminal 21 Crosslinking portions 22a, 22b Base parts 25a, 25b Element connecting portions 28, 28 (28a, 28a, 28b, 28b) Press-fitting blade 40 Dielectric housing 41 Terminal accommodating part 43 Accommodating chambers 45, 55 Opening part 50 Outer conductor shell

   ─────────────────────────────────────────────────── ─── 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 FA09 FA14 FA16 FB02                       FB11 FB20 FC19 FC32 FC34                       FC40

Claims (7)

[Claims] 1. An electronic element built-in connector terminal, comprising an inner conductor terminal electrically connected to a core wire end portion of a coaxial cable and having a built-in chip type electronic element, wherein the inner conductor terminal is the core wire terminal. Core connection terminal electrically connected to the base part and a mating terminal matingly connected to the mating connector terminal, and both terminals are bridged on the side wall surface erected on both side edges of each base part. And the electrodes on each side of the chip-type electronic element are electrically connected to the lower surface of the base portion of each of the core wire connection terminal and the fitting terminal, and then the bridge portion. A connector terminal with a built-in electronic element, wherein the core wire connection terminal and the fitting terminal are electrically connected via a chip-type electronic element by cutting the. 2. The bottom surface of the base portion of the core wire connection terminal and the fitting terminal is connected to the electrodes on each side of the chip-type electronic element, and the contact surface with the chip-type electronic element is formed in a dent shape. The connector terminal with a built-in electronic element according to claim 1, wherein the formed element connection portion is provided. 3. A dielectric housing having a housing chamber for housing the inner conductor terminal and an outer conductor shell fitted around the dielectric housing, the outer conductor shell being fitted on a peripheral surface of the dielectric housing. 3. An open portion that overlaps with the same position in the opened state and that exposes the bridge portion of the inner conductor terminal is provided.
Connector terminal with a built-in electronic element described in. 4. The inner conductor terminal is formed with a notch opening formed by notching and opening end portions of side wall surfaces of the core wire connecting terminal and the fitting terminal located below the bridge portion. The connector terminal with a built-in electronic element according to claim 1, wherein: 5. The pair of upper end edges of both side wall surfaces of the core wire connecting terminal and the fitting terminal are press-fitted into the upper wall of the accommodation chamber of the dielectric housing to lock both terminals in the accommodation chamber. The connector terminal with a built-in electronic element according to claim 1, wherein a press-fitting blade is provided upright. 6. The press-fitting blade formed of a pair that is erected on each of the core wire connecting terminal and the fitting terminal is integrally formed over the bridging portion. Connector terminal with built-in electronic element. 7. A core wire connecting terminal that is electrically connected to a core wire end of a coaxial cable, and a fitting terminal that is matingly connected to a mating connector terminal, both terminals being on both sides of each base portion. When incorporating a chip-type electronic element into a connector terminal having an inner conductor terminal integrally connected via a bridge portion on a side wall surface erected at the edge, a bottom surface of a base portion of the core wire connection terminal and the fitting terminal The step of connecting the electrodes on each side of the chip-type electronic element to each other, the step of inserting and attaching the outer conductor shell to the peripheral surface of the dielectric housing having the accommodation chamber for accommodating the inner conductor terminal, and the inner conductor terminal A step of accommodating in the accommodating chamber, and a step of cutting a bridge part of the inner conductor terminal, which is provided in the dielectric housing and the outer conductor shell and is exposed from an open part overlapping at the same position. Component-embedded method to the connector terminals, wherein.