JP4592376B2 - Shield connector with built-in electronic elements - Google Patents

Description

  2. Description of the Related Art Conventionally, in the field of automobiles and the like, as shown in FIGS. 5A and 5B, an electronic element is mounted inside a shield connector connected to a terminal portion of a shielded wire. This electronic element built-in shielded connector is a shielded connector called a so-called JASO plug, in which a capacitor for correcting electrostatic capacity is mounted in series as an electronic element, and is used for a radio antenna harness, etc. It is.

  The shielded connector 100 with built-in electronic element shown in FIG. 1 includes a capacitor 102 with a lead wire in which a pair of lead wires 101 a and 101 b are extended in opposite directions, and an outer conductor terminal 105 to be crimped to a shield conductor 104 of a shielded electric wire 103. Insulating tube 106 covering the outer periphery of capacitor 102 with lead wire, cylindrical inner conductor terminal 108 connected to core wire 107 of shielded electric wire 103 via capacitor 102 with lead wire, and fixing inner conductor terminal 108 A connector housing 109 in which the capacitor 102 with lead wire and the insulating tube 106 are housed, and a fitting lid 110 to be fitted to the rear end portion of the connector housing 109 are provided.

  In connecting the shielded connector 100 with a built-in electronic element to the terminal portion of the shielded electric wire 103, first, the sheath 111 of the terminal portion of the shielded electric wire 103 is peeled to expose the core wire 107 and the shield conductor 104, and the shield conductor 104 is also exposed. Are folded back and bundled, and then one lead wire 101 b of the capacitor 102 with the lead wire is connected to the core wire 107 by solder 112. Next, the shield conductor 104 of the shielded electric wire 103 is crimped by the shield conductor crimping portion 113 of the outer conductor terminal 105, and the cylindrical insulating tube 106 is covered on the outer periphery of the capacitor 102 with lead wire.

  Then, the inner conductor terminal 108 is fixed to the front end portion of the connector housing 109, and the other lead wire 101a of the capacitor 102 with the lead wire is inserted into the insertion hole 114 formed at the tip of the inner conductor terminal 108, and the solder 115 is used. Connect and cut off the remaining portion of the lead wire 101a. Finally, the fitting lid 110 previously passed through the shielded electric wire 103 is fitted to the rear end portion of the connector housing 109. In this way, the shielded connector 100 with a built-in electronic element in which the lead wire capacitor 102 is mounted in series inside the connector is obtained.

Japanese Patent Laid-Open No. 11-74036

  However, in this conventional shielded connector with built-in electronic element, since solder is used to connect the lead wire and the core wire of the shielded wire and the inner conductor terminal, it cannot be said that it is friendly to the global environment. Moreover, in addition to having to solder the lead wire capacitor manually, the front part of the solder connection part is easily broken due to its own weight, etc., so it is difficult to insert the lead wire into the insertion hole at the tip of the inner conductor terminal, etc. There was a problem that productivity was bad and production cost increased. Furthermore, since cracks are likely to occur in the solder connection part, there is a problem that the solder connection part is easily broken and the connection reliability is lacking.

  Therefore, the problem to be solved by the present invention is to provide a shielded connector with built-in electronic elements excellent in productivity and connection reliability.

In order to solve the above problems, an electronic element built-in shield connector according to the present invention includes an electronic element having a pair of lead wires, an inner conductor terminal connected to one lead wire of the electronic element, and the inner conductor terminal. A dielectric that accommodates and holds, an outer conductor terminal that accommodates and holds the dielectric, and is connected to the shield conductor of the shielded electric wire, and the other lead wire of the electronic element and the core wire of the shielded electric wire are co-crimped together. and a pressure bonding member, wherein the co-crimped member is provided integrally with the outer conductor terminal via a bridge portion to be cut and removed, the outside conductor pin, the inner conductor terminal and the electronic device is arranged When the other lead wire of the electronic element and the core wire of the shielded electric wire are connected together by crimping, a crimping jig for crimping the joint crimping member and a cutting jig for cutting and removing the bridge portion are inserted. That ability opening is formed in which the subject matter.

Also, the bridge portion may be provided at the other lead wire side of the electronic device relative to the co-crimped member.

  According to the shielded connector with built-in electronic element having the above-described configuration, the electronic element having a pair of lead wires, the inner conductor terminal connected to one lead wire of the electronic element, and the dielectric that accommodates and holds the inner conductor terminal A body, an outer conductor terminal that accommodates and holds the dielectric, and is connected to the shield conductor of the shielded electric wire, and a co-crimping member that co-crimps the core wire of the shielded electric wire to the other lead wire of the electronic element. Therefore, it is possible to perform terminal processing without using solder, and since the connection is made by the co-crimp member, disconnection or the like does not occur at the connection portion, and the connection reliability is excellent.

  In addition, since the co-crimping member is provided integrally with the outer conductor terminal via the bridge portion to be cut and removed, it is not necessary to prepare the co-crimping member as a separate member, improving the workability of parts transportation Furthermore, since the positioning during caulking is easy, the connection workability is also improved.

  In this case, in the portion where the co-crimping member of the outer conductor terminal is provided via the bridge portion, an opening through which a crimping jig for crimping the co-crimping member and a cutting jig for cutting and removing the bridge portion can be inserted. If the structure is formed, the co-crimping connection by the caulking jig and the cutting removal by the cutting jig can be performed at one time, and the number of processes is reduced. In addition, if the bridge portion is configured to be provided on the other lead wire side of the electronic element with respect to the co-crimp member, that is, a configuration provided on the side opposite to the core wire of the shielded wire, The influence on the core wire due to the stress at the time of cutting and removing the portion is mitigated.

  Hereinafter, an embodiment of a shield connector with a built-in electronic element according to the present invention will be described in detail with reference to FIGS. 1 and 2 are cross-sectional views showing the procedure for connecting the shield connector 1 with built-in electronic element according to the present embodiment to the shielded electric wire W. FIG. FIG. 3 is a partial detail view of the co-crimp member 6 provided on the outer conductor terminal 5, and FIG. 4 is a diagram showing a procedure for caulking the co-crimp member 6 and cutting and removing the bridge portion 5i. In the following description, the fitting direction of the shielded connector 1 with built-in electronic element and the mating connector will be referred to as the front end side (front side), and the opposite direction will be described as the base end side (rear side).

  First, as shown in FIG. 2 (c), the shielded connector 1 with built-in electronic element is a co-crimping that co-crimps the electronic element 3 including the lead wires 3a and 3b and the lead wire 3b and the core wire Wa of the shielded electric wire W. A member 6, an inner conductor terminal 2 having a lead wire crimping portion 2 a for crimping the lead wire 3 a, a dielectric 4 that accommodates and holds the inner conductor terminal 2, a dielectric 4, and a shield conductor of the shielded electric wire W And an outer conductor terminal 5 having a shield conductor crimping portion 5b for crimping Wd. Hereinafter, each component will be described in detail.

  First, the shielded electric wire W to which the electronic device built-in shield connector 1 according to the present invention is suitably connected will be described. As shown in FIG. 2A, the shielded electric wire W includes a core wire Wa in which a plurality of strands made of copper or the like are twisted together, an insulator Wb covered on the outer periphery of the core wire Wa, and a strand made of copper or the like. A braid Wd as a shield conductor formed by braiding a wire and covering the outer periphery of the insulator Wb, and a jacket We covering the outer periphery of the braid Wd are arranged coaxially. In addition, since the outer periphery of the core wire Wa is covered with the braid Wd, noise entering from the outside can be electromagnetically shielded.

  In FIG. 2 (a), the end portion of the shielded electric wire W has a form in which the outer sheath Wd is peeled by a predetermined length and the inner core wire Wa, the insulator Wb, and the braid Wd are exposed (hereinafter referred to as the outer sheath Wd). , The shielded wire in this state is referred to as “terminal-treated shielded wire”).

  Next, the inner conductor terminal 2 will be described. As shown in FIG. 1A, the inner conductor terminal 2 is formed integrally by bending a conductive plate-like member, and a lead wire 3a of the electronic element 3 is crimped to the base end. A lead wire crimping portion 2a is provided, and a connecting portion 2b that is electrically connected to a mating terminal of a mating connector (not shown) is provided at the tip.

  The lead wire crimping portion 2a includes a pair of bifurcated crimping pieces 2c. The lead wire 3a is disposed between the crimping pieces 2c and crimped, whereby the inner conductor terminal 2 and the electronic element 3 are removed. Conductive connection can be established in the stopped state (see FIG. 1B).

  On the other hand, the connection part 2b is provided with a pair of contact pieces 2d formed by being folded back into the connection part 2b at the front end. These contact pieces 2d are formed so as to be elastically deformable, and are able to exchange electrical signals by elastically contacting with tab portions of a mating terminal (not shown) inserted between the contact pieces 2d. Yes. Further, on the upper surface of the connecting portion 2b, an engagement piece 2e that engages with an inner peripheral wall of a terminal accommodating chamber 4a of a dielectric 4 to be described later protrudes upward.

  Next, the electronic element 3 will be described. As shown in FIG. 1B, the electronic element 3 is for adjusting various electrical characteristics of the shield connector, and includes a main body portion 3c and a pair of lead wires 3a and 3b. One lead wire 3a extends to the inner conductor terminal 2 side, and the other lead wire 3b extends to the shielded electric wire W side. Specific examples of this type of electronic element 3 include a capacitor with a lead wire, a resistor with a lead wire, and a diode with a lead wire. For example, a capacitor with a lead wire can be selected in order to provide capacitance adjustment and noise resistance performance.

  Next, the dielectric 4 will be described. As shown in FIG. 1C, the dielectric 4 is integrally formed in a substantially cylindrical shape from an insulating synthetic resin having a predetermined dielectric constant, and the inner conductor terminal 2 and the outer conductor terminal 5 It is for maintaining the insulation state between. A terminal accommodating chamber 4a that opens in the front-rear direction is formed through the dielectric 4 so that the lead wire crimping portion 2a of the inner conductor terminal 2 can be accommodated and held in an exposed state. Yes. Further, as described above, an engagement hole 4b that engages with the engagement piece 2e of the inner conductor terminal 2 and prevents it from coming off is formed in the ceiling surface of the terminal accommodating chamber 4a.

  On the other hand, on the base end side of the dielectric 2, an element protection part 4 c that covers the outer periphery of the main body part 3 c of the electronic element 3 extends rearward, and an element accommodating chamber 4 d is formed therethrough. . A viewing opening 4e through which an identification mark (a color bar in the capacitor) of the electronic element 3 can be seen is formed below the element housing chamber 4d. The opening 4g opened upward between the terminal accommodating chamber 4a and the element accommodating chamber 4d is for securing a space for accommodating the inner conductor terminal 2 using a jig or the like (not shown). .

  Next, the outer conductor terminal 5 will be described. As shown in FIG. 1 (d), the outer conductor terminal 5 is formed integrally by bending a conductive plate-like member, and has a substantially cylindrical shape in which a dielectric 4 is housed at the tip. A shield conductor crimping portion 5b that is crimped to a braid Wd as a shield conductor of the shielded electric wire W and a jacket crimping portion 5c that is crimped to the outer sheath We of the shielded electric wire W are provided at the base end. ing.

  The shield conductor crimping portion 5b includes a pair of bifurcated crimping pieces 5d. After the shielded electric wire W subjected to the terminal treatment is disposed between the crimping pieces 5d, the outer conductor terminal 5 and the shield conductor crimping part 5b are crimped. The shielded electric wire W can be conductively connected. In addition, a lock piece 5e that engages with the lock protrusion 4f of the dielectric 4 is formed on the inner lower surface of the shell portion 5a so as to face upward.

  Between the shell portion 5a and the shield conductor crimping portion 5b, a side wall 5h formed by openings 5f and 5g opened up and down is provided. As shown in FIG. 3, a bridge portion 5i is formed between the side walls 5h and 5h so as to bridge the side walls 5h and 5h. The co-crimping member 6 extends rearward from the center of the bridge portion 5i. Is extended. The co-crimping member 6 is for crimping together the lead wire 3b of the electronic element 3 and the core wire Wa of the shielded electric wire W to electrically connect them. In addition, serration processing may be given to the inner surface of the co-crimp member 6, that is, the surface side that contacts the lead wire 3 b and the core wire Wa. When serration is applied, the adhesion between the lead wire 3b and the core wire Wa is increased, a strong pulling strength can be obtained with a small crimping force, a large contact area can be taken, and the contact resistance is small. There are advantages.

  Next, a method for connecting the shielded connector 1 with built-in electronic element having the above-described configuration to the shielded electric wire W will be described. First, the lead wire 3a of the electronic element 3 is crimped and connected to the lead wire crimping portion 2a of the inner conductor terminal 2 shown in FIG. 1A (see FIG. 1B). Next, as shown in FIG. 1C, the inner conductor terminal 2 to which the electronic element 3 is connected is inserted from the rear side of the dielectric 4 so that the inner conductor terminal 2 is inserted into the terminal accommodating chamber 4a. The element 3 is held in a state of being accommodated in the element accommodating chamber 4d.

  Next, as shown in FIG. 1D, when the dielectric 4 integrated with the inner conductor terminal 2 and the electronic element 3 is inserted from the front of the shell portion 5a of the outer conductor terminal 5, the dielectric 4, the lock projection 4 f becomes immovable while being sandwiched between the lock piece 5 e of the shell 5 a and the stopper 5 j, and the dielectric 4 is held by the outer conductor terminal 5. At this time, the end portion of the lead wire 3b of the electronic element 3 is placed on the inner surface of the co-crimp member 6 described above.

  Next, the shielded electric wire W shown in FIG. 2A is supplied to the shielded connector 1 with built-in electronic elements assembled in this state. As shown in FIG. 2B, the end of the core wire Wa of the shielded electric wire W overlaps with the lead wire 3b of the electronic element 3 on the inner side surface of the co-crimp member 6, and the braid Wd on the shield conductor crimping portion 5b. The shielded electric wire W is arranged with respect to the shielded connector 1 with built-in electronic element so that the outer cover Wet is positioned on the outer cover crimping part 5c.

  Thereafter, as shown in FIGS. 2 (b) and 4 (a), the crimping member 6 is sandwiched and crimped by the crimper 11 of the crimping machine from above the opening 5f and the anvil 12 from below the opening 5g. Processing. At this time, the bridge portion 5i is cut and removed by the downward movement of the cutting jig 13 from above the opening portion 5f. Thereby, as shown in FIG. 2C and FIG. 4B, the lead wire 3b of the electronic element 3 and the core wire Wa of the shielded electric wire W are formed by the co-crimp member 6 in a state where the bridge portion 5i is cut and removed. Connected.

  As described above, in the electronic device built-in shield connector 1, the connection between the electronic device 3 and the core wire Wa is connected by the co-crimp member 6 without using solder. Excellent connection reliability. In this case, since the co-crimping member 6 is provided integrally with the outer conductor terminal 5 via the bridge portion 5i to be cut and removed, it is not necessary to prepare the co-crimping member 6 as a separate member. Conveyance workability is improved, and since positioning during caulking is easy, connection workability is also improved.

  Furthermore, as shown in FIG. 4, it is possible to perform co-crimping connection with a caulking jig and cutting and removal with a cutting jig at a time, and the number of processes is small. 2B, the bridge portion 5i is provided on the lead wire 3b side of the electronic element 3 with respect to the co-crimp member 6, that is, opposite to the core wire Wa of the shielded electric wire W. Since it has the structure provided in the side, the influence on the core wire Wa by the stress at the time of cutting and removing the bridge part 5i is relieved, and there is no possibility of disconnection.

  The embodiment of the shielded connector with a built-in electronic element according to the present invention has been described above. However, the present invention is not limited to such an embodiment, and can be implemented in various modes without departing from the gist of the present invention. Of course you can. For example, the bridge portion 5i provided with the co-crimp member 6 is formed in a bridge shape from both side walls 5h, 5h of the outer conductor terminal 5 in the above embodiment, but is formed in a cantilever shape from one side wall 5h. In addition, the shape is not limited to that of the above embodiment. Further, it is possible to perform the crimping process of the co-crimping member 6 described above, the cutting and removing process of the bridge portion 5i, the crimping process of the braid Wd, and the crimping process of the outer jacket Wed at a time, and the process procedure described above is limited Not.

It is the figure which showed the assembly procedure of the electronic device built-in shield connector which concerns on one Embodiment of this invention. It is the figure which showed the following assembly procedure of FIG. FIG. 2 is a detailed perspective view of a portion provided with a co-crimp member 6 of the external conductor terminal 5 of FIG. It is the figure which showed the procedure in which the lead wire of the electronic element in the outer conductor terminal and the core wire of a shield electric wire are jointly crimped. It is the figure which showed the electronic device built-in shield connector used conventionally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic element built-in shield connector 2 Inner conductor terminal 2a Lead wire crimping part 3 Electronic element 3a, 3b Lead wire 3c Main body part 4 Dielectric body 4a Terminal accommodating chamber 4c Element protection part 4d Element accommodating chamber 4e Visual recognition opening part 5 External conductor terminal 5a Shell part 5b Shield conductor crimping part 5c Outer crimping part 5f, 5g Opening part 5h Side wall 5i Bridge part 6 Crimping member 11 Crimper 12 Anvil 13 Cutting jig W Shield electric wire Wa Core wire Wb Insulator Wd Braiding We Outer jacket

Claims (2)

An electronic element having a pair of lead wires, an inner conductor terminal connected to one lead wire of the electronic element, a dielectric that accommodates and holds the inner conductor terminal, and a shielded electric wire that accommodates and holds the dielectric bridge and the outer conductor terminal, and a co-crimping member co crimp connecting the core wire of the shield wire and the other lead wire of the electronic device, wherein the co-crimped member, to be cut and removed to be connected to the shield conductor The outer conductor terminal is provided integrally with the outer conductor terminal, and the other lead wire of the electronic element and the shielded electric wire are connected to the outer conductor terminal in a state where the inner conductor terminal and the electronic element are arranged. Built-in electronic device , wherein an opening is formed through which a crimping jig for caulking the co-crimp member and a cutting jig for cutting and removing the bridge portion can be inserted when the core wire is co-crimped and connected. Shield Co Kuta. The shielded connector with built-in electronic element according to claim 1 , wherein the bridge portion is provided on the other lead wire side of the electronic element with respect to the co-crimp member.

Images