JP2013191392A - Terminal material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a terminal material composed of one component to form a splice part, to connect ground of the splice part, and to fix a wiring harness of the splice part.SOLUTION: The terminal material performs splice connection of electric wires with each other and performs ground connection of the splice part. The terminal material forms a crimp part to be covered over core wire exposure parts of a plurality of electric wires for caulking and crimping, a ground fixing part provided with a bolt hole, and a connection part integrally from a conductive metal plate, the one end of which is connected to the crimp part positioned in a wire harness and the other end of which is connected to the ground fixing part. The connection part projects in an outer diameter direction in the wire harness part to make the ground fixing part project from the external surface of the wire harness, and is provided with a tape winding part for winding an adhesive tape together with an electric wire group of the wire harness.

Description

  The present invention relates to a terminal material, and more particularly, to a terminal material having a function of splicing wires constituting a wire harness and being able to connect the splice portion to the ground and fixing the wire harness including the spliced wire to the vehicle body. It is.

  As a terminal material to be connected to the wires of the wire harness to be wired to the vehicle, a splice terminal material for connecting a plurality of electric wires and an earth terminal material for ground connection are required, and further, the wire harness is spaced in the length direction. Requires a clamp to open and fix to the car body. Thus, many parts are used to form the wire harness, and the number of work steps for attaching these many parts to the wires of the wire harness and the wire harness itself is also increasing.

In order to reduce the number of parts and the number of mounting operations, parts in which plural kinds of parts are combined into one part are provided. For example, Japanese Unexamined Patent Publication No. 11-67287 and Japanese Unexamined Patent Publication No. 2001-298824 propose a terminal material in which terminals of a plurality of electric wires are spliced and the splice portion can be fixed to a vehicle body by ground connection. Yes.
Japanese Patent Application Laid-Open No. 2009-163941 provides a ground connector having a cylinder portion and a clamp portion formed of a conductive resin, and exposes and inserts the core wire of the ground wire terminal into the cylinder portion. Have been proposed that are fixed to the cylinder portion and can be grounded at the clamp fixing position.

Japanese Patent Laid-Open No. 11-67287 JP 2001-298824 A JP 2009-163941 A

  The terminals that can perform both the splice connection and the ground connection in Patent Documents 1 and 2 do not require a splice connection in the middle of the route to the ground point, but it is necessary to wire the wire to the ground point, and the length of the wire is large. There is a problem. In order to solve this problem, since a new ground point is provided at a position close to the splice connection position, it is necessary to make a bolt insertion hole in the vehicle body, which increases costs.

  In Patent Document 3, since the ground connection is made at the clamp fixing position, it is not necessary to wire the wire to the ground point. However, since the ground connector is formed of a conductive resin, the electrical resistance value is higher than that of the metal terminal material. Become. In addition, since fixing to the vehicle body only inserts the blade-like locking portion of the clamp, there is a problem in terms of electrical connection reliability.

  The present invention has been made in view of the above problems, and can connect a splice wire at an existing ground point position, can stabilize the resistance value at the ground connection portion, and can securely fix the vehicle body. It aims at providing the multifunctional terminal material which can also fix the wire harness containing the electric wire to connect to the vehicle body.

In order to achieve the above object, the present invention is a terminal material for splicing wires to each other and grounding the splice portion,
A crimping part that crimps and crimps a core wire exposed part of a plurality of wires, an earth fixing part provided with a bolt hole, and one end connected to the crimping part positioned in the wire harness and the other end fixed to the earth The connecting part that is continuous with the part is integrally formed from a conductive metal plate,
The connecting portion includes a tape winding portion that protrudes in the outer diameter direction in the wire harness so that the ground fixing portion protrudes from the outer surface of the wire harness and winds an adhesive tape together with the wire group of the wire harness. Providing materials.

  The electric wire spliced at the crimping portion is positioned at the center of the wire harness, and the connecting portion continuous to the crimping portion is L-shaped or the L-shaped vertical portion is curved along the outer periphery of the wire harness. The longitudinally curved part of the part is used as the tape winding part, and the tip of the longitudinally curved part is connected to the ground fixing part.

  The connecting portion has a shape in which an L-shaped vertical portion extends straight from the ground fixing portion in a straight line instead of providing the vertical bending portion, and a tape winding portion projects from the upper portion of the vertical portion; and The horizontal portion may be bent by 90 degrees from the lower end of the vertical portion, the horizontal portion may be bent in the wiring direction, and a barrel-shaped crimping portion may be provided in the bent portion.

  As described above, in the terminal material of the present invention, the ground fixing portion is integrally provided via the connecting portion to the crimping portion that forms the splice portion by crimping and crimping the plurality of core wire exposed portions, and the connecting portion is formed of the wire harness. A tape winding part that protrudes in the outer diameter direction from the crimping part positioned in the center of the wire group and projects the ground fixing part from the outer periphery of the wire harness, and is wound around the outer periphery of the wire group of the wire harness at the connecting part. Provided. Thus, the terminal material of the present invention is fixed to the wire harness with the splice forming function, the function of connecting the formed splice part to the ground, and the splice part positioned at the center of the wire group of the wire harness. It also has a function, and since the wire harness is held under the neck of the terminal material ground fixing part, the ground fixing part can also have the function of a clip to fix the wire harness to the vehicle body panel. Can be achieved.

  As described above, the number of parts can be reduced by making the terminal material of the present invention multifunctional. And if it is placed in a wire harness at a position corresponding to an existing ground point where a bolt hole for grounding terminal is provided, it is not necessary to provide a new ground point and it is necessary to extend the wire to the ground point Nor.

Moreover, this invention provides the assembly method of the wire harness for vehicles using the said terminal material. That is,
Passing the core wire exposed portion of the plurality of electric wires through the crimping portion of the terminal material, and crimping to form a splice portion,
Surrounding the electric wire spliced by the crimping part of the terminal material with another electric wire group constituting the wire harness and positioning the tape winding part of the connecting part of the terminal material along the outer periphery of the electric wire group of the wire harness,
Next, an electric tape to be spliced under the neck of the ground fixing portion of the terminal material by binding an adhesive tape around the outer surface of the tape winding portion of the terminal material and the outer peripheral surface of the electric wire group to bind the terminal material and the electric wire group An assembly method of a wire harness for a vehicle that holds a wire harness including

The two terminal materials are used, and the crimping portion is arranged at the center of the wire harness in a state where the ground fixing portions of the terminal materials are overlapped, and the tape winding portion of the two terminal materials is arranged on the outer periphery of the wire harness. It is preferable that the tape is fixed on the surface together with the wire group of the wire harness.
With this configuration, a large number of electric wires can be grounded at one earth point.

  The core wire exposed portion of the electric wire that is crimped with another electric wire at the crimp portion of the terminal material to form a splice portion may be an intermediate core wire exposed portion that has an insulating coating peeled off at an intermediate position in the length direction of the electric wire. The terminal core wire exposed part which peeled off insulation coating with the terminal may be sufficient.

  Furthermore, the wire harness for vehicles formed by the said method is provided.

  As described above, the terminal material according to the present invention has a multifunctional function by integrally providing a crimping portion for splice connection and a ground fixing portion for ground connection via a continuous portion having a tape winding portion to a wire harness. Yes. Therefore, the number of parts and the number of parts to be attached can be reduced compared to the case of attaching each function part, and the cost can be reduced accordingly. Further, if the terminal material attached to the electric wire is arranged in the wire harness at a position corresponding to the earth point provided on the vehicle body, there is an advantage that it is not necessary to connect the earth wire to the terminal material and to wire to the earth point.

The terminal material of 1st Embodiment of this invention is shown, (A) is a perspective view, (B) is a side view. It is a top view which shows the electric wire which carries out the splice connection by the said terminal material. The state which connected the electric wire with the said terminal material is shown, (A) is a front view, (B) is sectional drawing. It is sectional drawing which shows the assembly process of the electric wire spliced with the said terminal material, and a wire harness. It is a perspective view of the wire harness which attached the said terminal material. It is sectional drawing which shows the state which has earthed the terminal material of the said wire harness. It is a perspective view which shows the terminal material of the 1st modification of 1st Embodiment. (A) is a perspective view which shows the terminal material of a 2nd modification, (B) is sectional drawing which shows the state fixed to the vehicle body. (A) is a perspective view which shows the terminal material of a 3rd modification, (B) is sectional drawing which shows the state fixed to the vehicle body. It is a front view which shows the state attached to the electric wire using the terminal material of 2nd Embodiment as a combination terminal. It is sectional drawing which shows the state which attached the said two terminal materials to the wire harness.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1st Embodiment is shown in FIG. 1 thru | or FIG.

  The terminal material 1 of the first embodiment is formed by bending a conductive metal material after punching into the shape shown in FIG. 1 and connecting the crimping portion 2 and the ground fixing portion 3 with the connecting portion 4. .

  The crimping part 2 is provided with two pairs of barrels 2b and 2c provided with a pair of caulking pieces curved in a circular arc shape from both sides in the width direction of the board part 2a on both sides in the length direction of the board part 2a. . The substrate portion 2a of the crimping portion 2 is continuous with the tip of the lateral portion 4a of the connecting portion 4 having a substantially J shape. The vertical portion of the connecting portion 4 is a vertical curved portion 4b that is curved along the outer periphery of the wire harness 10, and a ground fixing portion 3 is projected in the vertical direction from the center of the upper end of the vertical curved portion 4b. . That is, the lower end of the connecting substrate portion 3a of the ground fixing portion 3 is protruded from the center of the upper end of the longitudinally curved portion 4b, and the circular electric contact portion 3b provided with the bolt hole 3h is protruded from the upper end of the continuous substrate portion 3a. doing.

  The terminal material 1 having the above-mentioned shape has a shape in which the length direction of the substrate portion 2a of the crimping portion 2 is set to the horizontal direction and the ground fixing portion 3 protrudes in a perpendicular direction perpendicular thereto. The connecting portion 4 to be connected is provided with a bent portion of approximately 90 degrees, and the longitudinally curved portion 4b is used as a tape winding portion.

2. Insert both sides of the core wire exposed portion 21 of the electric wire 20 shown in FIG. 2 into the barrels 2b and 2c of the crimping portion 2 of the terminal material 1 having the above-mentioned shape, and crimp and crimp it to form a splice portion S as shown in FIG. The splice portion S is grounded by fixing the ground fixing portion 3 of the terminal material 1 to the vehicle body with bolts. The splice part S is covered with an insulating tape T or an insulating sheet including the core wire exposed part 21 exposed between the barrels 2b and 2c for insulation protection.
As shown in FIG. 2, the core wire exposed portion 21 of the electric wire 20 is an intermediate exposed portion that is exposed by peeling off the insulation coating at an intermediate position in the length direction of the electric wire. The exposed terminal portion may be used.

  As shown in FIG. 6, the ground fixing portion 3 has a bolt hole 3 h aligned with a bolt hole H formed in the vehicle body panel P, and a bolt B is inserted and fastened to a nut N, whereby a terminal material is obtained. 1 is fixed to the vehicle body panel P, and the splice portion S is grounded.

  Further, as shown in FIG. 4, the relationship between the terminal material 1 and the wire harness 10 is such that the electric wire 20 to be spliced is positioned at the center of the other electric wire group 22 of the wire harness 10 and the crimping portion of the terminal material 1. The splice portion S formed at 2 is positioned at the center of the wire harness 10. The lateral portion 4 a of the connecting portion 4 of the terminal material 1 is protruded from the center of the wire harness 10 in the outer diameter direction, and the longitudinally curved portion 4 b is along the outer periphery of the wire harness 10. In this state, the adhesive tape 12 is wound around the outer surface of the longitudinally curved portion b of the terminal material 1 and the outer peripheral surface of the wire harness 10 to fix the terminal material 1 to the wire harness 10. In this state, the ground fixing portion 3 of the terminal material 1 protrudes from the outer peripheral surface of the wire harness 10.

The wire harness shown in FIG. 5 is assembled in the process shown in FIG.
That is, the terminal material 1 is connected to the electric wire 20 to be spliced among the electric wires constituting the wire harness 10. Specifically, the insulation coating of the plurality of electric wires 20 is peeled off to expose the core wire, and the core wire exposed portion 21 is crimped and crimped through the barrels 2b and 2c of the crimp portion 2 of the terminal material 1 to form the splice portion S. Form. About 3 wires can be spliced at the crimping portion 2. An insulating tape T is wound around the splice portion S to provide insulation protection.
Next, the electric wire 20 in which the splice portion S is formed by the crimping portion 2 of the terminal material 1 is disposed at the center position of the wire harness 10, surrounded by another electric wire 22 constituting the wire harness, and the connecting portion 4 of the terminal material 1. The lateral portion 4a of the wire harness 10 is projected to the outer periphery of the wire harness 10, and the longitudinally curved portion 4b is focused along a part of the outer periphery of the wire harness 10 (1/4 circumference). The adhesive tape 12 is wound to bind the wire harness. At that time, the adhesive tape 12 is continuously wound around the outer surface of the longitudinally curved portion 4b of the terminal material 1, and the terminal material 1 is firmly fixed to the wire harness. Thereby, the wire harness is assembled in the state holding the wire harness 10 including the electric wire spliced under the neck of the ground fixing portion 3 of the terminal material 1.

  Thus, when the terminal material 1 in which the splice portion S is formed on the wire harness 10 is wound and integrated with the adhesive tape 12, and the wire harness 10 is routed in the vehicle, the ground fixing portion 3 of the terminal material 1 is the vehicle body panel P. It is set to protrude from the existing earth point drilled in. Therefore, when the wire harness 10 is routed in the vehicle, the ground fixing portion 3 of the terminal material 1 protruding from the wire harness 10 is disposed at the ground point provided in the vehicle body panel P, and the bolt hole 3h of the ground fixing portion 3 is disposed in the vehicle body. By inserting and fastening bolts so as to coincide with the bolt holes H of the panel P, the splice portion S can be grounded and the wire harness 10 is secured to the terminal material 1 and the adhesive tape 12, so that the wire harness 10 itself Can also be fixed to the vehicle body panel P via the terminal material 1.

FIG. 7 shows a first modification of the terminal material.
The terminal material 1B projects a narrow width portion 4d from the lower end of the longitudinally curved portion 4b, bends the lower end of the narrow width portion 4b to form a lateral portion 4a, and the distal end of the lateral portion 4a is further bent at a right angle. The crimp portion 2 having one barrel is provided at the tip of the bent portion 4e.
Since the other configuration and the form of attachment to the electric wire and wire harness are the same as those of the first embodiment, description thereof will be omitted.

8A and 8B show a second modification of the terminal material.
The terminal material 1C is provided by cutting and raising the connection board portion 3a of the ground fixing portion 3 by inserting a pair of cuts 3g from the upper end into the vertical bending portion 4b of the connection portion 4, and extending straight from the lower portion of the vertical bending portion 4b. ing. A lateral portion 4i is refracted from the center of the lower end of the longitudinally curved portion 4b, a 90-degree refracting portion 4j is provided from the distal end of the lateral portion 4i, and a crimping portion 2 having a barrel at the distal end is provided. As described above, when the connecting substrate portion 3a of the ground fixing portion 3 is shaped to protrude straight from the lower portion of the longitudinally curved portion 4b, the connecting substrate portion 3a can be protruded straight from the outer periphery of the wire harness 10, As shown in FIG. 8B, the wire harness can be routed along the straight surface Ps of the vehicle body panel P.

9A and 9B show a third modification of the terminal material.
The terminal material 1D refracts the connecting board portion 3a of the ground fixing portion 3, and places the electrical contact portion 3b on the same line as the outer periphery of the wire harness 10 as shown in FIG. A wire harness can be routed along the plane Ps. Other configurations are the same as those of the second modified example, and are denoted by the same reference numerals.

10 and 11 show a second embodiment.
In the second embodiment, two terminal materials are used to form a combination terminal. The terminal material 1E is provided with a vertical portion 4f that extends linearly from the lower end of the connecting substrate portion 3a of the ground fixing portion 3, and a tape winding portion 4g in an orthogonal direction protrudes above the vertical portion 4f. The horizontal portion 4i refracted by 90 degrees from the lower end of the vertical portion 4f is projected, the horizontal portion 4i is further refracted by 90 degrees in the horizontal direction, and the crimping portion 2 is provided at the tip of the refracted portion.

  Of the electric wires of the wire harness 10, two electric wires 20 are spliced by the crimping portion 2 of the first terminal material 1E-1, and the other two electric wires 24 are spliced by the crimping portion 2 of the second terminal material 1E-2. Connected. The crimping portions 2 of the first and second terminal materials 1E-1 and 1E-2 are positioned at the center of the wire harness 10, and the vertical portions 4f are overlapped to extend to the upper side of the wire harness 10. The tape winding portion 4g is aligned along the length direction of the wire harness at the outer peripheral position, and the ground fixing portions 3 and 3 are combined back to back.

As described above, the tape winding part 4g of the connecting part 4 of the two first and second terminal members 1E-1 and 1E-2 is wound, and the adhesive tape 12 is wound around the outer peripheral surface of the wire harness. Thereby, the wire harness 10 and the 1st, 2nd terminal material 1E-1 and 1E-2 can adhere firmly.
When the wire harness is routed to the vehicle and the ground fixing parts 3 and 3 overlapped back to back are aligned with the bolt holes of the vehicle body panel and tightened through the bolts, the ground connection of each splice part S of the first and second terminal materials Since the wire harness 10 is bolted to the vehicle body panel via the two terminal members, the holding strength of the wire harness can be increased.

DESCRIPTION OF SYMBOLS 1 Terminal material 2 Crimp part 3 Ground fixing part 3h Bolt hole 4 Connection part 4a Lateral part 4b Longitudinal bending part 10 Wire harness 12 Adhesive tape 20 Electric wire to be spliced 22 Other electric wires P Body panel H Bolt hole

Claims (5)

A terminal material for splicing wires to each other and grounding the splice portion, a crimping portion for crimping over the core wire exposed portion of a plurality of wires, a ground fixing portion having a bolt hole, and a wire harness One end is continuous with the crimping part positioned inside and the other end is connected to the ground fixing part, and a connecting part is integrally formed from a conductive metal plate,
The connecting portion includes a tape winding portion that protrudes in the outer diameter direction in the wire harness so that the ground fixing portion protrudes from the outer surface of the wire harness and winds an adhesive tape together with the wire group of the wire harness. Wood.   The electric wire spliced at the crimping part is positioned at the center of the wire harness, and the connecting part continuous to the crimping part has an L shape or a curved shape along the outer periphery of the wire harness. The terminal material according to claim 1, wherein the longitudinally curved portion of the connecting portion is the tape winding portion, and the ground fixing portion is coupled to the tip of the longitudinally curved portion. A method of assembling a wire harness using the terminal material according to claim 1 or 2,
Passing the core wire exposed portion of the plurality of electric wires through the crimping portion of the terminal material, and crimping to form a splice portion,
Surrounding the electric wire spliced by the crimping part of the terminal material with another electric wire group constituting the wire harness and positioning the tape winding part of the connecting part of the terminal material along the outer periphery of the electric wire group of the wire harness,
Next, an electric tape to be spliced under the neck of the ground fixing portion of the terminal material by binding an adhesive tape around the outer surface of the tape winding portion of the terminal material and the outer peripheral surface of the electric wire group to bind the terminal material and the electric wire group Method of assembling a vehicle wire harness for holding a wire harness including A method of assembling a wire harness using the terminal material according to claim 1 or 2,
The two terminal materials are used, and the crimping portion is arranged at the center of the wire harness in a state where the ground fixing portions of the terminal materials are overlapped, and the tape winding portion of the two terminal materials is arranged on the outer periphery of the wire harness. A method of assembling a vehicle wire harness that is positioned on a surface and taped and fixed together with a wire group of the wire harness.   The wire harness for vehicles assembled by the method of Claim 3 or Claim 4.

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