JP2012028111A - Terminal and connector installation method for terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal etc., such that a connector is installed without complicating operation associated with the connector installation of the terminal and without decreasing noise removing performance of an electric wire.SOLUTION: A terminal 20 includes an electric wire connection part 22 connected to electric wires 1 and 2, a pair of terminal parts 21A and 21B each having an opposite terminal connection part 23 to which an opposite-side terminal is connected, and a coupling part 24 for coupling the pair of terminal parts 21A and 21B at the same interval as adjacent terminal insertion positions of the connector 10.

Description

  The present invention relates to a terminal connected to an electric wire and a connector mounting method for the terminal.

  For example, a connector of a wire harness includes a connector housing and a plurality of terminals mounted in the connector housing. Each terminal is mounted in the connector housing in a state of being connected to the end of each electric wire.

  Here, some electric wires are provided with noise countermeasures such as twisted pair wires and shield wires. With twisted pair wires and shielded wires, if the terminals are directly connected to the ends of the respective wires, the terminal portions of the plurality of wires can only be handled almost integrally, so that workability and safety at the time of mounting the connector are poor.

  Therefore, conventionally, when the electric wire is a twisted pair wire W1, as shown in FIG. 5, the terminal portions of the two electric wires 50 and 51 are untwisted and the terminals 40 are connected. And after attaching each terminal 40 to the connector 52 as shown in FIG. 6, the terminal location where the twisting of the two electric wires 50 and 51 was unwound and the electric wires 50 and 51 were brought close to each other. It was fixed with the shrinkable tube 53.

  When the electric wire is a shielded wire W2, as shown in FIG. 7, the shield layer 62 at the end of the shielded wire W2 is peeled off, and each terminal (not shown) is attached to the end of each electric wire 60, 61. Connecting. Then, after attaching each terminal (not shown) to the connector 64, the exposed end portions of the two electric wires 60, 61 are fixed with the tape 65 in a state where the electric wires 60, 61 are close to each other. It was.

  According to this conventional example, even when the terminal 40 (not shown) is connected to the terminal of the twisted pair wire W1 or the shielded wire W2, the workability of mounting the connector while keeping the noise countermeasure of the wire as much as possible, Safety can be secured.

  On the other hand, after connecting the terminal connected to the terminal of an electric wire with a connector, the method of twisting two electric wires into a twisted pair wire and taking measures against noise on the electric wire has been conventionally proposed. Briefly, as shown in FIG. 8A, a plurality of electric wires 72 and 73 are connected between a pair of connectors 70 and 71. As shown in FIG. 8B, the two electric wires 73 that need to take measures against electromagnetic induction noise are fixed by the first restraining tape 74 at the center position between the pair of connectors 70 and 71. The other electric wires 72 are also fixed with the restraining tape 75. The two electric wires 73 are rotated at the position of the first restraining tape 74, and the two electric wires 73 are twisted together. Next, as shown in FIG. 8C, the second constraining tape 76 fixes the two twisted electric wires 73 and the other electric wires 72. Thereby, the twisted state of the two electric wires 73 is maintained. Moreover, the proximity state of the distance between the two electric wires 73 is maintained by twisting.

  In this conventional example, the workability and safety of connector mounting at the terminals can be ensured, and the adverse effect of electromagnetic induction noise can be prevented in the entire area of the two electric wires, and good noise removal performance can be obtained as the electric wires.

JP-A-11-213774

  In the conventional example in which the terminal 40 (not shown) is connected to the terminal of the twisted pair wire W1 or the shielded wire W2, a portion where the twisted pair wire W1 is untwisted or a portion where the shield layer 62 of the shielded wire W2 is peeled off Since the two electric wires 50 and 51 (60, 61) are arranged close to each other by the shrink tube 53 and the tape 65, the electrical coupling between the two electric wires 50 and 51 (60, 61) is large. The characteristic impedance is lowered, and it is easy to achieve consistency with the impedance of the transmission line. However, in that region, the original noise removal performance cannot be obtained, and the noise removal performance of the electric wires 50 and 51 (60, 61) decreases. Specifically, at the location where the twisting of the two electric wires 50 and 51 of the twisted pair wire W1 is released, it is easily affected by electromagnetic induction noise. Further, the portions where the two electric wires 60 and 61 of the shield wire W2 are exposed are likely to be adversely affected by electrostatic induction noise.

  On the other hand, in the conventional example in which the twisted pair wire is formed after the terminal connector is mounted, it is necessary to perform the tape restraining work between the two electric wires 73 and the twisting work of the electric wires 73, so the work related to the connector mounting is very complicated. Become.

  Therefore, the present invention has been made to solve the above-described problem, and the work related to the connector mounting of the terminal does not become complicated, and the terminal can be mounted without reducing the noise removal performance of the wire, and An object of the present invention is to provide a method for attaching a connector to a terminal.

  The present invention provides a pair of terminal portions each having a wire connecting portion connected to an electric wire and a mating terminal connecting portion to which a mating terminal is connected, and an adjacent terminal insertion position of a connector between the pair of terminal portions. And a connecting portion connected at the same interval.

  The connecting portion is preferably a soluble body.

  Each of the two electric wires connected to the pair of terminal portions may be a twisted pair wire.

  Another invention is a terminal provided with a pair of terminal portions each having an electric wire connection portion and a mating terminal connection portion, and a connecting portion that connects the pair of terminal portions at the same interval as an adjacent terminal insertion position of a connector. A wire connecting step of simultaneously connecting the ends of two twisted wires to each wire connecting portion of the pair of terminal portions, and then inserting the pair of terminal portions into adjacent terminals of the connector A connector insertion process is performed in which the connector is inserted into the position at the same time.

  It is preferable that the connection portion is a fusible body, and at least a part of the pair of terminal portions is inserted into the connector, and then the connection portion is melted by energization between the pair of terminal portions.

  According to the present invention, since the pair of terminal portions are arranged close to each other by the coupling of the coupling portions, the terminal portions of the two electric wires can be connected to the pair of terminal portions without performing an operation such as untwisting, or Since the pair of terminal portions are connected by the connecting portion at the same interval as the adjacent terminal insertion position of the connector, the pair of terminal portions can be inserted into the connector at the same time. The connector can be inserted without performing the above operation. As described above, since work such as untwisting the terminal portions of the two electric wires is not necessary, work related to terminal connector mounting is not complicated, and noise removal performance of the electric wires does not deteriorate.

1 is a perspective view of a terminal according to a first embodiment of the present invention. It is a perspective view which shows 1st Embodiment of this invention and shows the process of inserting a terminal into a connector. FIG. 3 is a partial perspective view of the reel-shaped terminal group, showing the first embodiment of the present invention. The 2nd Embodiment of this invention is shown, (a) is a perspective view of a terminal, (b) is the sectional view on the AA line of (a). It is a perspective view which shows the state which connected the terminal of each electric wire of a twisted pair wire to the terminal of the prior art example. It is a top view which shows the prior art example and shows the state which mounted | wore the connector with the terminal connected to the twisted pair wire. It is a top view which shows the other conventional example, and shows the state which mounted | wore with the terminal connected to the shield wire. Further, another conventional example is shown, and (a) to (c) are diagrams showing respective processes for forming a twisted pair wire.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 3 show a first embodiment of the present invention. As shown in FIGS. 1 and 2, the terminal 20 is connected to the terminal of the twisted pair wire W <b> 1 and connected to the connector 10.

  First, the configuration of the twisted pair line W1 will be described. As shown in detail in FIG. 2, the twisted pair wire W <b> 1 is composed of two twisted wires 1 and 2. The electric wires 1 and 2 are covered with internal conductors 1b and 2b by insulating sheaths 1a and 2a. At the ends of the electric wires 1 and 2, the insulation jackets 1a and 2a are peeled off, and the conductors 1b and 2b are exposed.

  Next, the configuration of the connector 10 will be described. As shown in FIG. 2, the connector 10 has six terminal insertion chambers 11 arranged in parallel in the horizontal direction in two upper and lower stages. The terminal insertion chambers 11 adjacent in the horizontal direction have a center-to-center distance of P1. The terminal insertion chambers 11 adjacent in the vertical direction have a center-to-center distance of P2. Each terminal insertion chamber 11 opens on the rear surface of the connector 10. The front of all the terminal insertion chambers 11 is open to a connector fitting chamber (not shown). When a mating connector (not shown) is fitted into this connector fitting chamber (not shown), each of the following terminal portions 21A corresponding to the mating terminal (not shown) of the mating connector (not shown) corresponds. , 21B.

  As shown in FIG. 1, the terminal 20 is formed by pressing and bending a conductive metal plate. The terminal 20 includes a pair of terminal portions 21A and 21B each having a wire connection portion 22 and a mating terminal connection portion 23, and a connecting portion 24 that connects the pair of terminal portions 21A and 21B.

  The pair of terminal portions 21A and 21B are arranged side by side in the horizontal direction.

  Each electric wire connection part 22 has the 1st crimping part 22a and the 2nd crimping part 22b. The insulation jackets 1a and 2a are crimped by the first crimping portions 22a, and the conductors 1b and 2b are crimped by the second crimping portions 22b.

  Each counterpart terminal connecting portion 23 has a substantially rectangular frame shape (female terminal). Electrical connection is established by inserting a mating terminal (not shown) into the substantially rectangular frame shape.

  The connecting portion 24 has the same distance between the pair of terminal portions 21A and 21B (distance between the centers) as the adjacent terminal insertion position in the horizontal direction of the connector 10, that is, between the adjacent terminal insertion chambers 11 (distance between the centers). Connected with P1. The connection part 24 is comprised as a soluble body which melt | dissolves by supplying an electric current more than predetermined. As shown in FIG. 3, the connecting portion 24 is configured using a part of the reel-like terminal group 25.

  That is, the reel-like terminal group 25 includes a main connection portion 25a, a plurality of branch connection portions 25b that branch from the main connection portion 25a at intervals, and a connection portion that extends left and right from the tip of each branch connection portion 25b. 24 and a pair of terminal portions 21A and 21B provided at the distal ends of the left and right connecting portions 24. The terminal 20 is produced by cutting at the boundary between the branch connecting portion 25 b and the connecting portion 24.

  Next, the connector mounting operation of the terminal 20 will be described. As shown in FIG. 2, the ends of the two electric wires 1 and 2 of the twisted pair wire W1 are simultaneously connected to the electric wire connecting portions 22 of the pair of terminal portions 21A and 21B. Here, the terminal portions of the electric wires 1 and 2 of the twisted pair wire W1 are connected to the terminal 20 while being twisted together.

  Next, the pair of terminal portions 21 </ b> A and 21 </ b> B of the terminal 20 are simultaneously inserted into the adjacent terminal insertion chambers 11 of the connector 10. Here, since the pair of terminal portions 21A and 21B are connected by the connecting portion 24, the connecting portion 24 is inserted to a position where it interferes with the connector 10, that is, a half insertion position. The two wires 1 and 2 of the twisted pair wire W1 are connected to the pair of terminal portions 21A and 21B. However, since the two wires 1 and 2 of the twisted pair wire W1 are simultaneously connected to the connector, workability and safety are improved. Does not interfere with sex.

  Next, a predetermined current or more is passed between the pair of terminal portions 21A and 21B. Thereby, the connection part 24 is melted. Here, when the connecting portion 24 is not completely melted and the remaining portion (not shown) hinders the insertion of the terminal portions 21A and 21B into the terminal insertion chamber 11, the remaining portion (not shown). ) Is removed by folding.

  Next, the terminal portions 21 </ b> A and 21 </ b> B are inserted to the complete insertion position of the terminal insertion chamber 11. This completes it.

  As described above, the terminal 20 includes a pair of terminal portions 21A and 21B each having the wire connection portion 22 and the mating terminal connection portion 23, and the adjacent terminal insertion of the connector 10 between the pair of terminal portions 21A and 21B. And a connecting portion 24 connected at the same interval as between the chambers 11. Therefore, since the pair of terminal portions 21A and 21B are arranged close to each other by the connection of the connecting portion 24, the pair of terminal portions 21A and 21B can be connected to each other without performing the work of untwisting the terminal portions of the two electric wires 1 and 2. In addition, since the pair of terminal portions 21A and 21B are connected by the connecting portion 24 at the same interval as between the adjacent terminal insertion chambers 11 of the connector 10, the pair of terminal portions 21A and 21B can be simultaneously inserted into the connector. Therefore, the connector can be inserted without untwisting the terminal portions of the two electric wires 1 and 2 as in the conventional example. As described above, since work such as untwisting the terminal portions of the two electric wires 1 and 2 is not required, work related to the connector mounting of the terminal 20 is not complicated, and noise removal performance of the twisted pair wire W1 is lowered. do not do.

  In order to melt the connecting part 24, a predetermined current or more is passed between the pair of terminal parts 21A and 21B, so that the conduction check between the terminal parts 21A and 21B and the wires 1 and 2 can be performed simultaneously. Note that the connecting portion 24 may be removed by folding instead of being melted by current application.

  Since the connecting portion 24 is configured using a part of the reel-like terminal group 25, the metal plate material for producing the terminal 20 can be used effectively.

(Second Embodiment)
4 (a) and 4 (b) show a second embodiment of the present invention. 4 (a) and 4 (b), the terminal 30 of the second embodiment is arranged such that a pair of terminal portions 21A and 21B are arranged in the vertical direction by the connecting portion 34, as compared with the terminal 30 of the first embodiment. Has been. In the connecting portion 34, the distance between the pair of terminal portions 21 </ b> A and 21 </ b> B (center distance) is the same as the adjacent terminal insertion position in the vertical direction of the connector (not shown), that is, between the terminal insertion chambers (center distance). They are connected at the interval P2.

  Other configurations (including twisted pair wires and connectors) are the same as those in the first embodiment, and thus description thereof is omitted. 4 (a) and 4 (b), the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment for clarification.

  In the second embodiment, similarly to the first embodiment, it is not necessary to untwist the terminal portions of the two electric wires 1 and 2, so that the work related to the connector mounting of the terminal 30 is complicated. Moreover, the noise removal performance of the twisted pair wire W1 does not deteriorate.

(Modification)
In the first embodiment and the second embodiment, the case where the present invention is applied to the twisted pair wire W1 has been described, but the twisted pair wire W1 has a uniform twisting pitch between the two electric wires 1 and 2, Of course, it may be non-uniform.

  The present invention is not limited to the twisted pair wire W1, but can be applied to an electric wire that can handle a plurality of electric wires almost integrally by noise countermeasures or the like. For example, the present invention can be applied to a shielded wire in which the outer periphery of a plurality of electric wires is covered with a shield layer. The shielded wire is applicable even if the two wires in the shield layer are twisted together or the two wires are not twisted together.

  Further, the terminals 20 and 30 according to the present invention may be applied to the connection of electric wires that can handle the electric wires 1 and 2 separately and independently.

  In the said 1st and 2nd embodiment, although the connection parts 24 and 34 are comprised as a soluble body from an electroconductive material (conductor), you may comprise by an insulator (nonconductor). In this case, it is desirable to provide the connecting portions 24 and 34 at positions where the pair of terminal portions 21A and 21B can be inserted to the fully inserted position of the terminal insertion chamber 11 without interfering with the connector 10.

W1 Twisted pair wire 1, 2 Electric wire 10 Connector 20, 30 Terminal 21A, 21B Terminal portion 22 Wire connection portion 23 Mating terminal connection portion 24, 34 Connection portion

Claims (5)

A pair of terminal portions each having a wire connecting portion connected to an electric wire and a counterpart terminal connecting portion to which a counterpart terminal is connected;
A terminal comprising: a connecting portion that connects the pair of terminal portions at the same interval as adjacent terminal insertion positions of the connector. The terminal according to claim 1,
The connection part is a fusible body. The terminal according to claim 1 or claim 2, wherein
The two electric wires connected to the pair of terminal portions are each an electric wire of a twisted pair wire. Using a terminal provided with a pair of terminal portions each having a wire connection portion and a mating terminal connection portion, and a connecting portion that connects the pair of terminal portions at the same interval as the adjacent terminal insertion position of the connector,
Conducting a wire connecting step of simultaneously connecting the ends of two twisted wires to each wire connecting portion of the pair of terminal portions,
Thereafter, a connector insertion method for performing a connector insertion step of simultaneously inserting the pair of terminal portions into adjacent terminal insertion positions of the connector. A connector mounting method for a terminal according to claim 4,
The connecting portion is a soluble body,
A terminal connector mounting method comprising: inserting at least part of the pair of terminal portions into the connector, and then energizing the pair of terminal portions to melt the connecting portion.

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