JP2003173850A - Coaxial connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coaxial connector of which, an assembling process can be simplified, and miniaturized by mounting a chip capacitor to an inside conductor terminal connected with an end part of a core wire of a coaxial cable, capable of correcting electric capacitance as an antenna harness. <P>SOLUTION: A core wire connection terminal 20A constituting an inside conductor terminal 20 conductively connected to the end part of the core wire 11 of a coaxial cable 10 and an intermediating connection terminal 20B are electrically connected with each other at a bottom surface through a chip capacitor C, and integrally combined at the upper part of a protruded part of both side walls through side surface joining parts 21, 21. The core wire connection terminal 20A and the intermediating connection terminal 20B are conductively connected only through the chip capacitor C after removing the side surface joining parts 21, 21 in a state that the chip capacitor C is mounted to the bottom surface of the inside conductor terminal 20. <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 coaxial connector, and more specifically, it is possible to perform capacitance correction as an antenna harness by mounting a chip type capacitor on an inner conductor terminal that is conductively connected to a core wire end of a coaxial cable. The present invention relates to a coaxial connector.

[0002]

2. Description of the Related Art In recent years, electric signals transmitted to a control printed circuit board on which electronic parts, ICs (integrated circuits) and the like built in electric devices of automobiles such as car navigation systems are mounted have become 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 implemented in the output stage. However, in the case of an antenna harness of a vehicle, for example, the shape and length of the harness are different for each vehicle type, and therefore these electronic components mounted on 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.

A coaxial connector 100 shown in FIGS. 14 (a) and 14 (b) is connected to an end of a coaxial cable 110, and has a capacitor 120 inside. Capacitor 12 to this coaxial connector 100
To install 0, first peel off the end of the coaxial cable 110 to expose the core wire 111, then connect one of the lead wires of the capacitor 120 to the core wire 111 by soldering, and make the other lead wire parallel to the cable. Bend forward so that The braided wire 112 of the shield is folded back on the outer jacket 113 of the coaxial cable, and the outer conductor terminal 130 having the crimping piece 131 is crimped and fixed to the folded-back portion 114.
Then, after covering the capacitor 120 with the cylindrical insulating tube 140, the connector housing 15 is inserted from the front.
The cover 1 that was installed with 0 and was loosely inserted into the cable in advance.
Fit and fix with 60. Connector housing 150
A cylindrical inner conductor terminal 170 is integrally fixed to the inner end of the capacitor, and a lead wire bent forward of the capacitor 120 is inserted into a through hole 171 formed at the tip of the lead wire after solder connection. Cut off the excess part. In this way, the connection of the coaxial connector 100 having the built-in capacitor 120 is completed.

[0006]

However, as shown in FIG.
With the coaxial connector structure shown in Fig. 4, the number of parts is large, and the number of processing steps is large.In addition, it is necessary to manually solder and connect the capacitor with lead wire, which makes it difficult to automate the processing of the cable end. Also, there is a problem that the work becomes complicated because an insulating tube must be attached so that the lead wire and the outer conductor terminal are not short-circuited. Further, as described above, in the connector structure in which the capacitor with the lead wire is built in the inner conductor terminal, it is necessary to secure a space for connecting the lead wire and the cable core wire, which leads to downsizing of the connector. There is a limit.

Further, in the conventional connector for mounting the chip type capacitor, when connecting the chip type capacitor and the inner conductor terminal, the inner conductor terminal is divided into two members, and the chip type capacitor is connected between both members. Therefore, there is a problem in that the number of parts and the number of processing steps are increased and productivity is deteriorated.

The problem to be solved by the present invention is to reduce the number of parts and the number of processing steps and to downsize the connector by mounting the chip type capacitor on the inner conductor terminal for connecting the core wire end portion of the coaxial cable. The present invention is to provide a coaxial connector capable of correcting the electric capacity as an antenna harness.

[0009]

In order to solve this problem, a coaxial connector according to the present invention has a chip-type capacitor at an inner conductor terminal connected to a core wire end portion of a coaxial cable as described in claim 1. Is mounted, wherein the inner conductor terminal comprises a core wire connecting terminal that is conductively connected to the core wire, and a relay connecting terminal that is connected to the mating connector terminal, and the core wire connecting terminal and the relay connecting terminal. Are electrically connected to each other through the chip type capacitor on the bottom surface and are integrally coupled at the upper end positions of the projecting portions on both side walls through the side surface coupling portions, and the chip type capacitor is the inner conductor terminal. By cutting off the side surface coupling portion in a state of being mounted on the bottom surface of the core, the core wire connection terminal and the relay connection terminal are conductively connected only via the chip type capacitor. It is an gist and.

In such a coaxial connector, the chip-type capacitor is cut off by cutting off the side surface connecting portion for connecting the side walls of the core wire connection terminal and the relay connection terminal with the chip-type capacitor mounted on the inner conductor terminal. Since the electric transmission path is formed between both connection terminals via the, the chip type capacitor is surely connected to the inner conductor terminal, so that the connection reliability is excellent. Further, as compared with the conventional type in which the lead wire of the capacitor is connected to the core wire by soldering, the number of parts is reduced and the productivity is improved, and the mounting work of the capacitor is easy, and The function and effect peculiar to the present application that the size can be reduced can be achieved.

Further, in this coaxial connector, as described in claim 2, the dielectric body provided with the terminal accommodating portion for accommodating the inner conductor terminal has a base portion for vertically dividing the terminal accommodating portion. A lid portion, the lid portion is provided with an insertion portion for inserting the side coupling portion of the inner conductor terminal, and the inner conductor terminal on which the chip type capacitor is mounted is the terminal accommodating portion on the base side. When the lid portion is housed in the above and the lid portion is covered therewith, the side surface coupling portion is inserted into the insertion portion and is exposed above the insertion portion, and the side surface coupling portion is cut off. It is preferable that the core wire connection terminal and the relay connection terminal are electrically connected only through a chip type capacitor.

In the coaxial connector having such a structure, when the inner conductor terminal formed by mounting the chip type capacitor is housed in the terminal housing portion of the dielectric, the coaxial connector is inserted from above the insertion portion provided in the lid portion of the dielectric. Since the side connecting parts on both sides of the inner conductor terminal are exposed, a mold, for example, is inserted between the exposed side connecting parts on both side walls, and this is used as an underlay by a cutting blade or the like. If this side coupling part is cut off, no stress will be applied to the chip type capacitor mounted on the bottom surface of the inner conductor terminal, and the chip type capacitor and the core wire connection terminal and relay connection terminal will be connected in series. can do.

According to a third aspect of the present invention, in the coaxial connector, a dielectric body provided with a terminal accommodating portion for accommodating the inner conductor terminal has a base portion and a lid for vertically dividing the terminal accommodating portion. And an inner conductor terminal on which the chip-type capacitor is mounted, the inner conductor terminal on which the chip-type capacitor is mounted is provided on the base portion side. When the lid portion is housed in the upper portion and the lid portion is covered thereabove, the interposing portion is interposed between the both side walls, and the side surface coupling portion is exposed above the interposing portion. The core wire connection terminal and the relay connection terminal may be conductively connected only through the chip type capacitor by cutting off the side surface coupling portion.

In the coaxial connector having such a structure, when the inner conductor terminal on which the chip type capacitor is mounted is accommodated in the terminal accommodating portion of the dielectric, the interposition portion provided in the lid portion of the terminal accommodating portion is inserted. It is inserted between the side walls on both sides of the conductor terminal and exposes the side surface coupling portion above the insertion portion.In this state, use the cutting portion as an underlay to cut the side surface coupling portion. With this configuration, the side surface joint portions can be removed without inserting a mold or the like between the side surface joint portions. Further, if necessary, it is possible to insert a mold between the exposed side surface coupling portions located above the insertion portion to cut off the coupling portion. If the side coupling part is cut off by such means, there is no fear of stress being applied to the chip type capacitor mounted on the bottom surface of the inner conductor terminal and destroying the capacitor, and the chip type capacitor, core wire connecting terminal and relay connection are connected. It is possible to provide a coaxial connector in which terminals are connected in series.

Further, the inner conductor terminal forming the coaxial connector may have an insertion port for inserting a chip type capacitor on one side wall as described in claim 4. Normally, when mounting a chip-type capacitor on the inner conductor terminal, the chip-type capacitor is inserted and connected from above the terminal, but it is difficult to connect from above, for example, when the above-mentioned capacitor is inserted and connected manually. In this case, if the insertion opening for inserting the chip type capacitor is provided on the side wall on one side of the inner conductor terminal, the work becomes easy and the work efficiency is improved.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A coaxial connector according to an embodiment of the present invention will be described in detail below with reference to the drawings. First, FIG. 1 is an exploded perspective view of the coaxial connector according to the first embodiment of the present invention.
As shown in FIG. 1, a female inner conductor terminal 20 connected to the end of the core wire 11 of the coaxial cable 10, a chip type capacitor C mounted on the bottom surface of the inner conductor terminal 20, and an inner conductor terminal 20 are provided. Dielectric 30 to be housed and this dielectric 30
And an outer conductor shell 40 attached to the outer periphery of the.

In the coaxial cable 10 connected to the coaxial connector 1, a core wire 11 formed by bundling a plurality of copper wires is covered with an insulating inner cover 12 made of an insulating resin material, and the periphery thereof is a thin metal wire. Is covered with a braided wire 13 obtained by knitting, and the outer periphery of the braided wire 13 is covered with an insulating jacket 14 also made of an insulating resin material.
At the time of connection with the coaxial connector 1, as shown in FIG. 1, the cable end portion is in a state where the core wire 11, the insulating inner coat 12, and the braided wire 13 are hierarchically exposed in this order.

The inner conductor terminal 20 is of a female type, and the core wire connecting terminal 2 is connected to the core wire 11 end portion of the coaxial cable 10.
0A and a mating connector terminal (not shown), and a relay connecting terminal 20B that plays a relaying role to electrically connect the mating connector terminal and the core wire connecting terminal 20A. In addition, this inner conductor terminal 20
Core wire connection terminal 20A and relay connection terminal 20B that configure the
As shown in FIG. 1, the side wall edges facing each other are formed with protrusions, and the upper end edges of the protrusions are connected to each other via side surface coupling portions 21 and 21. It should be noted that the side surface connecting portions 21 and 21 are formed on the inner conductor terminal 2 in order to insert a mold between the side surface connecting portions on both sides as described later.
It is necessary to be formed at a position higher than the height of the chip type capacitor C mounted on the bottom surface of 0.

Here, the core wire connecting terminal 20A is provided with core wire barrels 22L and 22R, which are formed in pairs at one end edge thereof and which sandwich the end portion of the core wire 11 of the coaxial cable 10. One of the relay connection terminals 20B is provided with a connection insertion port 23 for inserting a mating male terminal (not shown) at one end, and a male terminal to be inserted is attached and connected behind the connection insertion opening 23. The attached connecting pieces 24L and 24R are provided. In addition, connection projections 25a and 25b for connecting the chip type capacitor C are formed on the bottom surfaces of the connection terminals 20A and 20B facing each other, and the connection projections shown by hatching in FIG. The chip type capacitor C is placed on the upper surfaces of 25a and 25b and soldered or the like to connect and fix the respective connection terminals 20A and 20B (see FIG. 2B).

The dielectric 30 has a terminal accommodating portion 31 for accommodating the inner conductor terminal 20, and is composed of a base portion 30A and a lid portion 30B so as to divide the terminal accommodating portion 31 into upper and lower portions. Both members are the flange portion 3 provided integrally with the upper end edge on one side of the base portion 30A and the lid portion 30B.
It is connected by a connecting portion 34 provided between the upper edge of the two.

Here, the inner conductor terminal 20 is attached to the base 30A.
The lower half of the terminal accommodating portion 31 for accommodating the terminal is provided, and a flange portion 32 for abutting the end edge portion of the outer conductor shell 40 described later is provided in the front. Also, this flange 3
A terminal insertion opening 32a for inserting a mating connector terminal (not shown) is provided in the central portion of 2. One lid 30B is provided with the upper half of the terminal accommodating portion 31 and is a protrusion on both side walls that is coupled by the side surface coupling portions 21 and 21 of the inner conductor terminal 20 accommodated above the terminal accommodating portion 31. An insertion portion 33 is formed for inserting the portion and exposing it upward.

The outer conductor shell 40 has the dielectric 3 at one end.
A through hole 41 for inserting 0 is formed, and a notch 42 for fitting and locking the connecting portion 34 of the dielectric 30 is formed on the upper surface side of this through hole. Also, on the bottom,
Fitting locking piece 4 for fitting into the recess 35 provided on the bottom surface of the inner conductor terminal and for locking the dielectric inserted through the shell.
3 is cut and raised inwardly toward the insertion direction of the dielectric (see FIG. 6). Further, on the other end side of the insertion port 41, braid barrels 44L and 44R formed of a pair that holds the exposed braided wire 23 of the coaxial cable 10 in a fixed manner, and an insulating barrel 45L that includes a pair that holds the insulating jacket 14 in a held state. , 45
R and R are formed to face each other.

When connecting the end portion of the coaxial cable 10 to the coaxial connector 1, first of all, the core wire 11 exposed in a state where the coaxial cable 10 is inserted into the outer conductor shell 40.
The core wire barrel 2 provided behind the inner conductor terminal 20 at the terminal portion.
The core wire 11 and the inner conductor terminal 20 are electrically connected by holding the 2L and 22R together. On the other hand, on the bottom surface of the inner conductor terminal 20, the chip type capacitor C is placed on the upper surfaces of the connection projecting portions 25a and 25b provided on the bottom edge of the core wire connection terminal 20A and the relay connection terminal 20B, respectively, by soldering or the like. Conductive connection with the connection terminal of (see FIG. 2).

As described above, the core wire 11 of the coaxial cable 10
After the connection with the terminal portion, the inner conductor terminal 20 is housed in the dielectric 30. 3 to 5 for the step of accommodating the dielectric 30.
Will be described step by step. First, the inner conductor terminal 20 is inserted into the terminal accommodating portion 31 on the side of the base portion 30A, and the post-insertion lid portion 30B is covered on the base portion 30A to cover the inner conductor terminal with the terminal accommodating portion 31. The protrusions that are connected to each other through the side surface coupling portions 21 and 21 are inserted into the insertion portion 33 and exposed above the insertion portion 33 (FIGS. 3 and 4).
(See (a)).

Next, the mold 60 is inserted between the protrusions on both sides exposed above the insertion portion 33. As shown in FIG. 5 (a), a mold 60 is inserted from above the insertion portion 33, and is fixed at a position where it does not come into contact with the chip type capacitor placed on the bottom surface of the inner conductor terminal 20 (FIG. 5 (b)). ), The cutting blades 61, 61 are inserted from the left and right sides of the protrusion, and the protrusion is cut off together with the side surface coupling portions 21, 21 with the mold 60 as the underlay. In order to fit the tip portions of the cutting blades 61, 61 on both side surfaces of the die 60 so that the tip portions of the underlying die 60 and the cutting blades 61, 61 are not damaged during the cutting work. The fitting grooves 60a, 60a are notched. If the fitting grooves 61a, 61a are formed, even if the cutting blades 61, 61 are introduced with the mold 60 as an underlay, the tip ends of the cutting blades 61, 61 and the mold 60 are contacted with each other and both are damaged. There is no need to worry, and the protrusions can be cut smoothly.

When the side surface coupling portions 21 and 21 are cut off in this manner, the only electrical conduction path between the core wire connection terminal 20A and the relay connection terminal 20B is the path through the chip type capacitor C mounted on the bottom surface, that is, the chip. Type capacitor C
The core wire connection terminal 20A and the relay connection terminal 20B are connected in series.

Further, the protrusions on the side walls of the connection terminals 20A and 20B, which remain above the insertion portion 33 in the above cutting step, are bent outward by using a jig or the like, and the remaining portions of these protrusions are the outer conductor shell. Avoid the risk of contact with and short-circuiting (see FIG. 4 (c) and FIG. 5 (c)). Then
The dielectric 30 is inserted into the outer conductor shell 40 through the insertion port 41 and attached. At this time, the flange portion 32 is inserted into the insertion port 41.
The connecting portion 34 of the dielectric body 30 is brought into contact with the end edge and is fitted into the notch 42 at the upper end of the insertion opening 41, and the fitting locking piece 43 formed on the bottom surface of the outer conductor shell 40 is the bottom surface of the dielectric body 30. It is fitted into a fitting recess 35 provided in the section. Outer conductor shell 4
After being mounted in 0, the dielectric 30 is locked in both the pushing direction and the pulling direction (see FIG. 6).

As described above, the dielectric 30 is attached to the outer conductor shell 4
Braided barrels 44L and 44R and insulating barrels 45L and 4 provided behind the outer conductor shell 40 after being mounted in
The 5Rs are held by the braided wire 13 of the coaxial cable 10 and the peripheral surface of the insulating jacket 14 respectively, and the connection is completed.

As described above, after the inner conductor terminal 20 on which the chip-type capacitor C is mounted is housed in the dielectric 30, the side surface connecting portion 2 is formed by interposing the mold 60 between the side surface connecting portions 21 and 21.
The side connecting portion 2 can be formed by cutting off the side walls 1 and 21.
Chip type capacitor C mounted when cutting off 1, 21
Since no stress load is applied to the chip capacitor, there is no risk of destroying the internal circuit, and the chip capacitor C and the core wire connecting terminal 20A and the relay connecting terminal 20B can be safely connected in series.

Next, a second embodiment of the present invention will be described in detail with reference to FIGS. In the coaxial cable according to this embodiment, as shown in FIGS. 7 and 8, a side surface insertion port 26 for allowing the chip type capacitor C to be inserted from the side surface direction is provided on one side wall of the inner conductor terminal 20. The side walls on the other side are characterized in that protective portions 27, 27 are provided on both side walls of the core wire connecting terminal 20A and the relay connecting terminal 20B so that the inserted chip type capacitor C does not fall off from the other side. It should be noted that the other coaxial connector 1 includes the dielectric body 30 and the outer conductor shell 40, which are constituent members.
Since the configuration is similar to that of the first embodiment, the description will be omitted.

When connecting the chip-type capacitor C to the inner conductor terminal 20, the chip-type capacitor C is inserted through the side surface insertion opening 26 of the inner conductor terminal 20, and the bottom end ends of the core wire connecting terminal 20A and the relay connecting terminal 20B facing each other. It is installed on the connecting protrusions 25a and 25b provided on the edges (see FIG. 7A). The inserted chip-type capacitor C is connected and fixed on the connection protrusions 25a and 25b by soldering or the like to secure the electrical connection with the connection terminals 20A and 20B (see FIG. 7B).

Then, with the coaxial cable 10 inserted in the outer conductor shell 40, the exposed end portion of the core wire 11 is provided with core wire barrels 22L, 22 behind the inner conductor terminal 20.
The core wire 11 and the inner conductor terminal 20
And are electrically connected. Then, the inner conductor terminal 20
Is inserted into the terminal accommodating portion 31 on the base portion 30A side of the dielectric 30 and the post-insertion lid portion 30B is covered on the base portion 30A so that the inner conductor terminal 20 is covered by the terminal accommodating portion 31. At the same time, the protrusions that are coupled via the side surface coupling portions 21 and 21 are inserted into the insertion portion 33 and exposed above the insertion portion 33 (see FIG. 9B). In addition, the insertion part 33 in the present embodiment has molds 70, 70, which will be described later, on the side surface part of the base part 30.
It is formed to be narrower than the base 30A for insertion on A (see FIG. 9B).

Next, in order to cut off the side surface connecting portions 21 and 21 exposed above the insertion portion 33, FIGS.
As shown in (a), a pair of left and right molds 70, 70
Are placed on the left and right side edge portions of the base portion 30A so as to come into contact with the side surfaces of the insertion portion 33. In addition, this mold 70,7
The tip of the cutting blades 71a, 71a of the cutting member 71 to be inserted from above is fitted on the upper surface of the insertion section 33 side of the die 0,
0 and the cutting blades 71a, 71a are formed with fitting grooves 70a, 70a into which the leading end portions of the cutting blades 71a, 71a are fitted in order to prevent damage and to perform cutting smoothly.

After inserting the molds 70, 70, the upper end portions of the protrusions exposed above the insertion portion 33 are bent outward so as to contact the upper surfaces of the molds 70, 70, respectively, and the cutting member is provided from above. 71 is inserted (FIGS. 10B and 11).
(See (b)). The protrusions on both the left and right sides inserted on the molds 70, 70 are formed by the pair of cutting blades 71a, 71a provided on the cutting member 71, and the side surface connecting portion 2 is formed.
1, 21 are excised (FIG. 10 (c) and FIG. 11)
(See (c)).

After removing the side surface connecting portions 21 and 21, the mold 7 is removed.
0 and 70 are removed, the dielectric 30 is mounted in the outer conductor shell 40 as in the first embodiment, and the outer conductor shell 4
The braid barrels 44L and 44R and the insulating barrels 45L and 45R, which are provided at the rear of 0, are sandwiched and held on the peripheral surfaces of the braided wire 13 and the insulating jacket 14 of the coaxial cable 10, respectively, to complete the connection. By removing the side surface coupling portions 21 and 21 by the above process, the chip type capacitor C, the core wire connection terminal 20A, and the relay connection terminal 20B are connected in series.

Also in this embodiment, the side surface coupling portion 2 of the inner conductor terminal 20 in which the chip type capacitor C is mounted is mounted.
The chip type capacitor mounted when the side coupling parts 21 and 21 are cut by cutting the insertion parts 33 and the molds 70 and 70 of the dielectric material 30 as an underlay when cutting the parts 21 and 21. There is no risk of stress being applied to C, and the core wire connecting terminal 20A and the relay connecting terminal 2 can be safely connected.
It is possible to electrically connect between 0B via the chip type capacitor C.

A coaxial connector according to the third embodiment of the present invention will be described with reference to FIGS. 12 and 13. This coaxial connector includes side surface coupling portions 21 and 21 of the inner conductor terminal 20 housed in the terminal housing portion 31 in the lid portion 30B of the dielectric body 30.
It is characterized in that an interposition part 35 for interposing is formed between the both side projection parts which are coupled via each other. Further, the inner conductor terminal 20 is the same as that used in the second embodiment, and has a side surface insertion port 26 into which the chip type capacitor C can be inserted on the side wall. Also,
The outer conductor shell 40 is the same as in the first and second embodiments, and the inner conductor terminal 20 and the outer conductor shell 40 are the same.
I will omit the explanation of the configuration.

A shielded cable 10 is attached to this coaxial connector.
When connecting, the chip-type capacitor C and the end of the core wire 11 of the coaxial cable 10 are first connected to the inner conductor terminal 20. The connection process is the same as that of the second embodiment, so the description is omitted.

Next, the inner conductor terminal 20 is accommodated in the terminal accommodating portion 31 of the dielectric 30. As shown in FIG. 12, the inner conductor terminal 20 is first accommodated in the terminal accommodating portion 30 of the dielectric.
The terminal accommodating portion 31 of A is inserted. After insertion, lid 30B
Is closed and placed on the base portion 30A to cover the inner conductor terminals 20, and the interposition portion 35 provided on the lid portion 30B is inserted between the protrusion portions on both sides to insert the upper end portion of the protrusion portion. It is exposed above the portion (see FIG. 12B). At this time, the insertion portion must be formed so as not to come into contact with the chip type capacitor C mounted on the bottom surface of the inner conductor terminal 20.

In this way, the insertion portion 3 is provided between the protrusions on both sides.
The side surface connecting portions 21 and 21 are cut off with 5 interposed. Specifically, as shown in FIG. 13, the mold 60 is inserted between the protrusions on both sides exposed above the insertion portion 35, and the lower end portion thereof is brought into contact with the upper surface of the insertion portion 35. In this state, a pair of left and right cutting blades 61, 61 is introduced from the side surface direction of the both-side protrusions, and the tips of the respective cutting blades 61, 61 are fitted into fitting grooves 60a, 60a provided on both side walls of the mold. Then, the upper end portion of the protrusion is cut off together with the side surface connecting portions 21 and 21.

After cutting the side surface connecting portions 21 and 21, the mold 60 is removed, the dielectric 30 is mounted in the outer conductor shell 40 as in the first and second embodiments, and the outer conductor shell 40 is removed. The braid barrels 44L and 44R and the insulating barrels 45L and 45R provided at the rear are respectively connected to the coaxial cable 1
The braided wire 13 of 0 and the insulating jacket 14 are clamped and held on the peripheral surfaces to complete the connection.

As a method of cutting off the side surface connecting portions 21 and 21, a mold may be used as an underlay as described above, but an interposing portion inserted between the protruding portions on both sides of the inner conductor terminal 20. It is also possible to introduce the cutting blades 61, 61 from the side surface direction and cut the side surface connecting portions 21, 21 in the same manner by using 35 as an underlay. In any case, since the die 60 or the interposing portion 35 is interposed between both side walls and the side surface coupling portions 21 and 21 are cut off using this as an underlay, the chip type capacitor C connected to the bottom surface of the inner conductor terminal 20 is formed. There is no need to worry about the internal circuit being destroyed because no load is applied to it. Therefore, the chip type capacitor C and the core wire connection terminal 20A and the relay connection terminal 20B are connected in series in a safe and reliable manner.

In the above embodiment, in order to provide the coaxial connector capable of correcting the electric capacity as the antenna harness, the chip type capacitor is interposed between the core wire connecting terminal forming the inner conductor terminal and the relay connecting terminal. Although the coaxial connector in which these are connected in series has been described, other electronic components may be mounted instead of the chip type capacitor depending on the application.

Further, the coaxial connector according to the present invention is not limited to the type in which electronic parts such as chip type capacitors are mounted, and can be applied as a coaxial connector in which chip type capacitors and the like are not mounted. However, in this case, there is a risk that the projections, which are formed on the side walls on both sides of the inner conductor terminal, may contact the inner wall of the upper surface of the outer conductor shell, resulting in a short circuit. It is necessary to bend the protrusion described in the form outward or inward to avoid contact.

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-described embodiment, the inner conductor terminal is described as a type in which the chip-type capacitor is inserted from above and a type in which the chip-type capacitor is inserted from the side direction, but the above-described inner conductor terminal is applied in any of the embodiments. It goes without saying that you can do it. Further, in the above embodiment, the dielectric has a configuration in which the base portion and the lid portion are integrally coupled via the connecting portion, but not limited to this, the base portion and the lid portion are separate members. It doesn't matter.

[0046]

The coaxial connector according to the present invention comprises a core wire connecting terminal connected to the core wire end portion of the coaxial cable, a mating connector terminal and a relay connecting terminal for relaying between the core wire connecting terminals, both of which are provided on the side wall. A chip-type capacitor that electrically connects the bottom surfaces of the core connection terminal and the relay connection terminal is mounted on the inner conductor terminal integrally connected at the upper edge of the protrusion through the side surface connection portion, After accommodating and fixing the conductor terminal in the dielectric terminal accommodating portion, the side connecting portion is cut off by various means to electrically connect the core wire connecting terminal and the relay connecting terminal only through the chip type capacitor. Since they are so-called serially connected, the process of mounting the chip capacitor in the coaxial connector is simple and easy, and after that, the side surface coupling portion is cut off to mount the chip type capacitor. Work efficiency since work is also very easy to connect the core wire connection terminal and the relay connection terminals in series through the capacitors is remarkably improved.

Furthermore, since the coaxial connector is manufactured by mounting the chip type capacitor by using the same size as the normal inner conductor terminal without mounting the chip type capacitor, the connector can be downsized. This brings about an action and an effect peculiar to the present application that it can be achieved.

The chip-type capacitor mounting means accommodates the inner conductor terminal in the dielectric terminal accommodating portion and inserts the side surface coupling portion of the inner conductor terminal from the insertion portion provided in the dielectric lid portion. This is exposed above the insertion part, and in that state the mold introduced between the side connection parts on both sides is used as an underlay to cut off the side connection part, or the insertion part provided on the lid is connected on both sides. The side surface connecting part is exposed above the interposing part by inserting it between the parts, and in that state, the side surface connecting part is cut off by using the metal mold introduced between the interposing part or the side surface connecting parts on both sides as an underlay. For example, the chip type capacitor mounted on the bottom surface of the inner conductor terminal can be connected in series with the chip type capacitor, the core wire connecting terminal and the relay connecting terminal without any stress being applied.

[Brief description of drawings]

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

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

3 is a perspective view showing a state in which an inner conductor terminal of the coaxial connector shown in FIG. 1 is housed in a dielectric.

FIG. 4 is a perspective view showing an assembling process of the coaxial connector shown in FIG. 1, in which (a) shows the inner conductor terminal containing a dielectric material, and (b) shows the side connecting portion of the inner conductor terminal removed. In the latter state, (c) is a state in which the edge portion of the inner conductor terminal exposed above the insertion portion after the side surface coupling portion is cut is bent outward,
(D) shows a state in which the dielectric is mounted in the outer conductor shell.

5A and 5B are vertical cross-sectional views showing a step of cutting off the side surface connecting portion of the inner conductor terminal shown in FIG. 4, in which FIG. 5A is a state before a mold is inserted, and FIG. FIG. 3C shows a state in which the mold is inserted in FIG. 3C, and FIG.

6 is a cross-sectional view showing a state in which a coaxial cable is connected to the coaxial connector shown in FIG.

FIG. 7 is an external perspective view of an inner conductor terminal used in the coaxial connector according to the second embodiment of the present invention, where (a) is a state before a chip type capacitor is mounted and (b) is a chip type capacitor. It shows the state after mounting.

8A and 8B are an external view and a cross-sectional view of the inner conductor terminal shown in FIG. 7, where FIG. 8A is an external view from above, FIG. 8B is an external view from the insertion opening side, and FIG. A from the insertion side
-A sectional drawing is each shown.

9 is a perspective view showing a step of accommodating the inner conductor terminal in the dielectric in the coaxial connector formed by assembling the inner conductor terminal shown in FIG. 7, and FIG. , (B) respectively show the states after being housed in the dielectric.

10 is a perspective view showing a step of removing a side surface coupling portion of an inner conductor terminal in the coaxial connector shown in FIG. 7, where (a) is a state before die insertion and (b) is die insertion. The state after the placement is shown, and (c) shows the state after the side surface coupling portion is cut off.

FIG. 11 is a cross-sectional view showing a step of cutting off the side surface coupling portion of the inner conductor terminal shown in FIG. 10, where (a) is a state before the die is inserted and (b) is a state after the die is inserted. The state, (c) shows the state after the side surface coupling portion is cut off.

FIG. 12 is a perspective view showing an assembling process of a coaxial connector according to a third embodiment of the present invention, where (a) is a state before accommodating an inner conductor terminal in a dielectric, and (b) is an inner conductor. The respective states are shown after the terminals are housed in the dielectric.

FIG. 13 is a cross-sectional view showing a step of cutting off the side surface coupling portion of the inner conductor terminal shown in FIG. 12, where (a) is a state before the die is inserted and (b) is a state when the die is inserted. The respective states are shown.

14A and 14B are perspective views showing a situation in which a coaxial cable terminal is connected to a conventionally commonly used coaxial connector, in which FIG. 14A is an exploded perspective view of the coaxial connector, and FIG. It is sectional drawing which showed the state.

[Explanation of symbols]

1 coaxial connector C chip type capacitor 10 coaxial cable 11 core wire 20 Inner conductor terminal 20A core wire connection terminal 20B relay connection terminal 21,21 Side coupling part 25a, 25b connection protrusion 26 Side insertion port 30 dielectric 30A base part 30B lid 31 Terminal housing part 33 insertion part 35 Interposer 40 outer conductor shell

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Nobuaki Kojima             1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi             Auto Network Technical Laboratory Co., Ltd. F-term (reference) 5E021 FA02 FA09 FA16 FB11 FB14                       FB20 FC19 FC33 MA09 MA30                       MB08

Claims (4)

[Claims] 1. A coaxial connector in which a chip type capacitor is mounted on an inner conductor terminal connected to a core wire end portion of a coaxial cable, wherein the inner conductor terminal is mated with a core wire connection terminal electrically connected to the core wire. Side connection terminals and relay connection terminals connected to each other. The core wire connection terminals and the relay connection terminals are electrically connected to each other through the chip type capacitors on the bottom surface and at the upper end positions of the protrusions on both side walls. The core wire connection terminal and the relay connection terminal are integrally coupled via a side surface coupling portion, and the side surface coupling portion is cut off in a state where the chip type capacitor is mounted on the bottom surface of the inner conductor terminal. A coaxial connector which is electrically connected only through a chip type capacitor. 2. A dielectric body provided with a terminal accommodating portion for accommodating the inner conductor terminal comprises a base portion and a lid portion that divide the terminal accommodating portion into upper and lower portions, and the inner conductor is provided in the lid portion. An insertion portion for inserting the side surface coupling portion of the terminal is provided, an inner conductor terminal on which the chip type capacitor is mounted is accommodated in a terminal accommodating portion on the side of the base portion, and the lid portion is provided above the terminal accommodating portion. At this time, the side surface coupling portion is inserted into the insertion portion and is exposed above the insertion portion, and the side surface coupling portion is cut off so that the core wire connection terminal and the relay connection terminal form a chip-type capacitor. The coaxial connector according to claim 1, wherein the coaxial connector is conductively connected only through the coaxial connector. 3. A dielectric body provided with a terminal accommodating portion for accommodating the inner conductor terminal comprises a base portion and a lid portion that divide the terminal accommodating portion into upper and lower portions, and the inner conductor is provided in the lid portion. An interposing portion for interposing between both side walls of the terminal is provided, an inner conductor terminal on which the chip capacitor is mounted is accommodated in a terminal accommodating portion on the side of the base portion, and the lid portion is covered above the terminal accommodating portion. At this time, the interposition part is interposed between the both side walls, and the side surface coupling part is exposed above the interposition part, and the side surface coupling part is cut off to thereby the core wire connecting terminal. The coaxial connector according to claim 1, wherein the relay connection terminal and the relay connection terminal are conductively connected only via a chip-type capacitor. 4. The coaxial connector according to claim 1, wherein the inner conductor terminal is provided with an insertion port for inserting a chip type capacitor on one side wall.