JP2018133211A - Terminal and wire with terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal which restrains projection of a single wire above the terminal, when performing ultrasonic-welding.SOLUTION: A terminal 10 includes a wire connection member 20 to which the core wire 52 of an electric wire 50 is welded, and a cover member 30 covering the end of the core wire 52 welded to the wire connection member 20. The wire connection member 20 has a placement part 23 where the core wire 52 is placed, and sidewalls 24A-24F extending in the Z direction at both edges 23A, 23B of the placement part 23 in the Y direction. The cover member 30 has a base 31 extending in the X direction and Y direction, and projections 32A-32H projecting in the Y direction from both edges 31A, 31B of the base 31. The cover member 30 is configured so that in a state where the base 31 is located between the sidewalls 24A-24C and the sidewalls 24D-24F, the projections 32A-32H are located adjacent to the sidewalls 24A-24F in the X direction, and extend to a position farther outside than the inner surfaces 40A-40F of the sidewalls 24A-24F.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a terminal and an electric wire with a terminal, and more particularly to a terminal to which an electric wire is ultrasonically welded.

  Conventionally, when manufacturing an electric wire with a terminal by ultrasonically welding the electric wire to the terminal, there has been a problem that the wire protrudes outside the terminal and is suspected to the side jig of the ultrasonic welding apparatus. . In order to solve such a problem, as shown in FIG. 11A, side walls 910 and 910 are provided on both edges of the terminal 900 (see, for example, Patent Document 1). When ultrasonically welding the electric wire 800 to such a terminal 900, in order to make sure that the horn 1000 of the ultrasonic welding apparatus is in contact with the core wire 810 of the electric wire 800, it is between the horn 1000 and the side wall 910 of the terminal 900. It is necessary to provide a gap G in

  By the way, when mounting an electric wire (wire harness) on a vehicle, from the viewpoint of facilitating the wiring work and adapting to complicated wiring, etc. It is required to improve flexibility (bendability). However, when the electric wire 800 composed of such a thin wire 810A is ultrasonically welded to the terminal 900, the gap G between the side wall 910 and the horn 1000 becomes larger than the diameter of the wire 810A. For this reason, as shown in FIG. 11B, the strand 810 </ b> A easily protrudes above the terminal 900 from the gap G.

  When such a terminal-attached electric wire with an element wire protruding upward is mounted on a vehicle or the like, the element wire protruding upward is repeatedly bent due to a vehicle shake or the like. In particular, such a wire is in a compressed state by ultrasonic welding and has a reduced rigidity, and thus may be broken by repeated bending. And when the strand piece of the disconnected strand adheres to an electrical component, a short circuit (short) will generate | occur | produce in an electrical component.

JP 2004-071480 A

  The present invention has been made in view of such problems of the prior art, and it is a first object of the present invention to provide a terminal in which the wire is suppressed from jumping out above the terminal when ultrasonic welding is performed. The purpose.

  Moreover, this invention sets it as the 2nd objective to provide the electric wire with a terminal where a strand is hard to disconnect.

  According to the first aspect of the present invention, there is provided a terminal in which the strands are prevented from jumping out above the terminal when ultrasonic welding is performed. The terminal includes an electric wire connecting member to which an end portion of the core wire of the electric wire extending in the longitudinal direction is welded, and a cover member covering the end portion of the core wire of the electric wire welded to the electric wire connecting member. The said electric wire connection member has the mounting part in which the edge part of the core wire of the said electric wire is mounted. The mounting portion extends in the longitudinal direction and a width direction perpendicular to the longitudinal direction. Moreover, the said electric wire connection member further has the side wall extended in the thickness direction perpendicular | vertical to both the said longitudinal direction and the said width direction in at least one place of each of the both edge parts of the said mounting part in the said width direction. Yes. The cover member has a base portion that extends in the longitudinal direction and the width direction, and at least two protrusion portions that protrude in the width direction from both edges of the base portion. Here, in the state in which the cover portion is located between the side walls of the both edges of the mounting portion, each of the at least two projecting portions is configured so that each of the at least two protruding portions is the length of the wire connecting member. It is located adjacent to the side wall and extends to a position outside the inner surface of the side wall of the wire connecting member.

  As described above, the terminal cover member is located adjacent to the side wall of the wire connecting member in the longitudinal direction of the electric wire in a state where the base portion is located between the side walls of the mounting portion of the electric wire connecting member. Since it is configured to extend to a position outside the inner surface of the side wall, it is possible to prevent the wire from jumping out above the terminal by such a protruding portion.

  The said side wall may be provided in several places in each of the both edges of the said mounting part in the said width direction. With such a configuration, it is possible to effectively prevent the strands from protruding in the width direction from the terminals in the portions where the side walls are not formed.

  The at least two protrusions may include a first protrusion and a second protrusion that are separated from each other in the longitudinal direction. In this case, the cover member is configured such that the side wall is between the first protrusion and the second protrusion in a state where the base is located between the side walls of both edges of the mounting portion. It is comprised so that it may be located in. According to such a structure, since a side wall will be located between the 1st protrusion part and 2nd protrusion part which are mutually spaced apart in the longitudinal direction, it is between an electric wire connection member and a cover member. The relative position is prevented from shifting in the longitudinal direction.

  The cover member may further include a protrusion suppressing portion that extends in the thickness direction at at least one point of the tip portion in the width direction of the protruding portion. With such a configuration, it is possible to effectively prevent the strands from jumping out in the width direction at the portion where the protruding portion is located above (that is, the portion where the side wall is not formed). The cover member may further include a positioning portion extending in the thickness direction at a tip portion in the longitudinal direction. With such a configuration, the position of the electric wire in the longitudinal direction can be easily determined.

  The cover member may be formed of the same material as the core wire. This suppresses the occurrence of galvanic corrosion. In the cover member, the projecting portion is positioned more than the position of the outer surface of the side wall of the wire connecting member or the outer surface in a state where the base portion is located between the side walls of the both edge portions of the mounting portion. You may be comprised so that it may extend to an inner position. Such a configuration prevents the cover member from hitting the jig of the ultrasonic welding apparatus when the electric wire is ultrasonically welded to the terminal.

  According to the 2nd aspect of this invention, the electric wire with a terminal in which a strand is hard to disconnect is provided. This electric wire with a terminal includes the above-described terminal and an electric wire in which a core wire is electrically connected to the terminal. And the said core wire of the said electric wire is ultrasonically welded to both the said wire connection member of the said terminal, and the said cover member. According to such a configuration, since the length of protrusion of the wire is shortened by ultrasonic welding of the wire to the terminal described above, even when the terminal-attached wire is mounted on a vehicle or the like. , It is suppressed that the wire is broken.

  According to the present invention, the cover member of the terminal is located adjacent to the side wall of the wire connecting member in the longitudinal direction of the electric wire in a state where the base portion of the cover member is located between the side walls, and outside the inner surface of the side wall. By having the projecting part extending to the position, there is an effect that it is suppressed that the wire jumps out above the terminal when ultrasonic welding is performed.

It is a front view which shows the electric wire with a terminal which concerns on the 1st Embodiment of this invention. It is a top view of the electric wire with a terminal shown in Drawing 1, and is a figure showing the state before crimping an insulation barrel. It is a disassembled perspective view of the terminal shown in FIG. It is the sectional view on the AA line shown in FIG. FIG. 3 is a sectional view taken along line BB shown in FIG. 2. It is a figure which shows the manufacturing method of the electric wire with a terminal shown in FIG. It is a figure which shows the manufacturing method of the electric wire with a terminal shown in FIG. It is a figure which shows the manufacturing method of the electric wire with a terminal shown in FIG. It is a figure which shows the manufacturing method of the electric wire with a terminal shown in FIG. It is a front view which shows the electric wire with a terminal which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the cover member of the terminal shown in FIG. It is sectional drawing corresponding to FIG. 5 which shows the electric wire with a terminal shown in FIG. It is a front view which shows the electric wire with a terminal which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows typically the state before an electric wire is ultrasonically welded to the conventional terminal. It is sectional drawing which shows typically the state after an electric wire is ultrasonically welded to the conventional terminal.

  Hereinafter, embodiments of a terminal and a terminal-attached electric wire according to the present invention will be described in detail with reference to FIGS. 1 to 10. 1 to 10, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted. In addition, in FIGS. 1 to 10, the scale and dimensions of each component are exaggerated and some components may be omitted.

  FIG. 1 is a front view showing an electric wire with terminal 1 according to the first embodiment of the present invention, and FIG. 2 is a plan view showing the electric wire with terminal 1. As shown in FIG.1 and FIG.2, the electric wire 1 with a terminal is equipped with the electric wire 50 extended in a longitudinal direction (X direction), and the terminal 10 with which the electric wire 50 was welded by the ultrasonic welding mentioned later.

  As shown in FIGS. 1 and 2, the terminal 10 has an outer shape that is long in the X direction, and the wire connection member 20 located on the lower side (−Z direction side) of the electric wire 50 and the upper side of the electric wire 50 ( And a cover member 30 located on the + Z direction side). The wire connecting member 20 may be formed from, for example, copper, and the cover member 30 may be formed from, for example, aluminum. As shown in FIG. 2, a bolt fastening hole 27 is formed in the vicinity of the end on the + X direction side of the wire connecting member 20. For example, a bolt (not shown) is inserted into the bolt fastening hole 27, and the inserted bolt is screwed into a bolt fastening hole (not shown) formed in an electrical component of the vehicle. Is electrically connected to such an electrical component.

  As shown in FIGS. 1 and 2, an insulation barrel portion 21 is provided at an end portion of the terminal 10 on the −X direction side. The core wire 52 exposed from the covering 51 extends in the + X direction from a position of the electric wire 50 that is slightly shifted to the + X direction side from the insulation barrel portion 21. The core wire 52 is composed of a plurality of strands made of, for example, aluminum. Such a core wire 52 is welded to both the wire connecting member 20 and the cover member 30 in a state where the core wire 52 is sandwiched between the wire connecting member 20 of the terminal 10 and the cover member 30.

  Here, FIG. 3 is an exploded perspective view showing the terminal 10 before the electric wire 50 is welded. As shown in FIG. 3, the terminal 10 is formed so as to be able to cover the electric wire connecting member 20 formed so that the electric wire 50 can be placed thereon and the core wire 52 of the electric wire 50 placed on the electric wire connecting member 20. Cover member 30 formed. As shown in FIG. 2, the wire connecting member 20 and the cover member 30 have an outer shape that is line-symmetric with respect to the center line P in the width direction (Y direction) of the terminal 10.

  As shown in FIG. 3, the wire connecting member 20 is placed in the Y direction at the placement portion 23 located in the center and the end portions on the −X direction side of both edge portions 23 </ b> A and 23 </ b> B in the Y direction of the placement portion 23. It includes a pair of expansion portions 22 and 22 that extend obliquely upward while expanding. As shown in FIGS. 1 and 2, the core wire 52 of the electric wire 50 is placed on a part of the placement portion 23 and welded, whereby the electric wire 50 is electrically connected to the electric wire connecting member 20. On the other hand, the insulation barrel 21 shown in FIGS. 1 and 2 is formed by crimping the covering 51 of the electric wire 50 with the extension 22 while further bending the extension 22 from the state shown in FIG.

  As shown in FIG. 3, six side walls 24 </ b> A to 24 </ b> F having the same dimensions are erected on the placement portion 23 of the wire connecting member 20. More specifically, of the side walls 24A to 24F, the side walls 24A to 24C are erected on the −Y direction side edge of the mounting portion 23, and the side walls 24D to 24F are erected on the + Y direction side edge. Has been. Such side walls 24A to 24C and side walls 24D to 24E are provided to face each other in the Y direction.

  As shown in FIG. 3, the cover member 30 includes a base portion 31 located at the center and eight projecting portions 32 </ b> A to 32 </ b> H. More specifically, of the protrusions 32A to 32H, the protrusions 32A to 32D are formed so as to protrude from the edge 31A on the −Y direction side of the base 31 in the −Y direction, and the protrusions 32E to 32H are formed. The base 31 is formed so as to protrude in the + Y direction from the edge 31B on the + Y direction side. The protrusions 32A to 32D and the protrusions 32E to 32H are formed so as to be located on the opposite sides in the Y direction with the base 31 interposed therebetween, and the protrusion lengths in the Y direction are the same. It is formed as follows.

  As shown in FIG. 3, the protrusion 32A and the protrusion 32B are separated in the X direction by a length substantially the same as the entire length of the side wall 24A in the X direction. Further, the protruding portion 32B and the protruding portion 32C are separated in the X direction by substantially the same length as the entire length of the side wall 24B in the X direction. Furthermore, the protruding portion 32C and the protruding portion 32D are separated in the X direction by substantially the same length as the entire length of the side wall 24C in the X direction.

  Similarly, the protruding portion 32E and the protruding portion 32F are separated from each other in the X direction by substantially the same length as the entire length of the side wall 24D in the X direction. Further, the protruding portion 32F and the protruding portion 32G are separated from each other in the X direction by substantially the same length as the entire length of the side wall 24E in the X direction. Further, the protruding portion 32G and the protruding portion 32H are separated in the X direction by substantially the same length as the entire length of the side wall 24F in the X direction.

  As shown in FIG. 3, the cover member 30 has a separation distance L1 between a pair of projecting portions (for example, projecting portions 32A and 32E) located on opposite sides in the Y direction with the base 31 interposed therebetween. In the pair of side walls (for example, the side walls 24A, 24D) that are longer than the separation distance L2 of the inner surfaces (for example, 40A, 40D) of the pair of side walls (for example, the side walls 24A, 24D) It is formed to be shorter than the separation distance L3 (in other words, the separation distance L3 between the outer surfaces of the pair of side walls).

  With such a configuration, as shown in FIGS. 1 and 2, in a state where the base 31 is located between the side walls 24A to 24C and the side walls 24D to 24F, the side wall 24A is located between the protrusions 32A and 32B. The side wall 24B is positioned adjacent to the protrusions 32B and 32C between the protrusion 32B and the protrusion 32C, and the side wall 24C is the protrusion. Between 32C and protrusion part 32D, it will be located adjacent to protrusion part 32C, 32D.

  Similarly, the side wall 24D is positioned adjacent to the protrusions 32E and 32F between the protrusion 32E and the protrusion 32F, and the side wall 24E is positioned between the protrusion 32F and the protrusion 32G. The side wall 24F is located adjacent to the protrusions 32G and 32H between the protrusion 32G and the protrusion 32H.

  Therefore, as shown in FIG. 3, the electric wire connection member 20 and the cover member 30 can be meshed by positioning the side walls 24A to 24F between the protrusions 32A to 32H. Further, as shown in FIGS. 1 and 2, the core wire 52 of the electric wire 50 placed on the electric wire connecting member 20 is connected to the electric wire connecting member 20 while the electric wire connecting member 20 and the cover member 30 are engaged with each other. It can be sandwiched between the cover member 30.

  Thus, according to the terminal 10 in this embodiment, since the electric wire connection member 20 and the cover member 30 can be meshed with each other, the strands that form the core wire 52 protrude upward in the ultrasonic welding. Is suppressed. This point will be described in detail below.

  Here, FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2, that is, a cross-sectional view in a portion where a pair of side walls 24A and 24D facing each other in the Y direction are provided. 5 is a cross-sectional view taken along the line BB of FIG. 2, that is, a cross-sectional view in a portion where a pair of protrusions 32B and 32F located on opposite sides in the Y direction with respect to the base 31 are formed. is there.

  As shown in FIG. 4, a pair of side walls 24A and 24D are erected at both edges in the Y direction of the wire connecting member 20 at the position of the AA line in FIG. Therefore, even if pressure or ultrasonic vibration acts from above the cover member 30 during ultrasonic welding, the pair of side walls 24A and 24D may cause the strands forming the core wire 52 to jump out in the Y direction. Is prevented. That is, according to the terminal 10, it is prevented that a strand protrudes in a Y direction in the part in which the side walls 24A-24F are provided.

  On the other hand, at the position of the BB line in FIG. 2, as shown in FIG. 5, the protruding portion 32B is formed so as to protrude outward (−Y direction side) above the inner surface 40A of the side wall 24A above the core wire 52. In addition, the protruding portion 32F is formed to protrude outward (+ Y direction side) from the inner surface 40D of the side wall 24D. Therefore, even if a pressure or ultrasonic vibration acts from above the cover member 30 during ultrasonic welding, a pair of protrusions may cause the strands forming the core wire 52 to jump out above the cover member 30. It is suppressed by 32B and 32F. That is, according to the terminal 10, it is suppressed that a strand protrudes upwards in the part in which protrusion part 32A-32H is formed.

  Thus, according to this embodiment, since the electric wire connecting member 20 and the cover member 30 can be meshed with the core wire 52 of the electric wire 50 interposed therebetween, the electric wire 50 is ultrasonically welded to the terminal 10 and the terminal is attached. When manufacturing the electric wire 1, the strands of the core wire 52 are not only prevented from jumping out in the Y direction by the side walls 24 </ b> A to 24 </ b> F of the wire connecting member 20, but also the strands of the core wire 52 are projected upward. The protrusions 32 </ b> A to 32 </ b> H of the cover member 30 are suppressed.

  By the way, when ultrasonic welding is performed, at the position of the line AA in FIG. 2, there is a possibility that the strands may protrude upward from the gap T between the pair of side walls 24 </ b> A and 24 </ b> D and the cover member 30. However, the pair of protrusions 32B and 32F prevent the strands from jumping upward at the position of the BB line adjacent to the AA line in FIG. 2 (see FIG. 4) (see FIG. 4). 5). As described above, according to the terminal 10 in the present embodiment, even if the strand protrudes upward in the portion where the side wall is provided, the protruding portion formed adjacent to the side wall causes the projection to be formed above the strand. Is prevented from popping out, so that the protruding length of the wire with terminal 1 formed by ultrasonic welding is above the wire of the wire with terminal using a conventional terminal (see FIG. 11B). It becomes shorter compared to the length of jumping out.

  As described above, according to the terminal-attached electric wire 1, the protruding length of the element wire is shortened. Therefore, when the terminal-attached electric wire 1 is mounted on a vehicle or the like, the element wire protruding upward (the element wire protruding) ) Is prevented from coming into contact with other electrical components. Further, since the protruding length of the upward strand is short, the protruding strand is not so affected by external forces such as repeated bending. Therefore, when the terminal-attached electric wire 1 is mounted on a vehicle or the like, the protruding element wire is prevented from being disconnected due to repeated bending or the like. That is, it is possible to suppress the broken piece of the protruding wire from adhering to the electrical component or the like. As described above, according to the terminal-attached electric wire 1, it is possible to suppress the protruding wire from coming into contact with the electrical component, and it is possible to suppress the broken piece of the protruding strand from adhering to the electrical component. Therefore, it is possible to effectively prevent a short circuit from occurring in the electrical component.

  By the way, in a terminal-attached electric wire in which an electric wire made of a metal whose element wire is different from the terminal is welded to the terminal, it is electrochemically noble with respect to the surface area of the portion made of an electrochemically base metal at the contact portion between different metals. It is known that when the surface area ratio of the surface area of a portion made of a metal is large, galvanic corrosion is likely to occur in a portion made of an electrochemically base metal. Therefore, when the wire connecting member 20 and the core wire 52 of the wire 50 are formed of different materials, the cover member 30 is preferably formed of the same material as the core wire 52. By doing in this way, in the contact part (namely, part where the core wire 52 is welded to the electric wire connection member 20 and the cover member 30) of the dissimilar metals of the electric wire 1 with a terminal, the surface area ratio between dissimilar metals is made small. can do.

  More specifically, when the wire connecting member 20 is formed of copper (electrochemically noble metal) and the core wire 52 is formed of aluminum (electrochemically base metal) as described above. The cover member 30 is preferably made of aluminum. With such a configuration, the surface area ratio of the portion made of copper (the wire connecting member 20) to the portion made of aluminum (the core wire 52 and the cover member 30) in the connecting portion between the core wire 52 and the terminal 10 The size can be reduced as compared with the case of forming with a material other than aluminum. Therefore, the occurrence of galvanic corrosion can be suppressed. Note that the cover member 30 is not necessarily formed of the same material as the core wire 52.

  Next, an example of the manufacturing method of the electric wire 1 with a terminal is demonstrated. When manufacturing this electric wire 1 with a terminal, first, as shown to FIG. 6A, the electric wire connection member 20 is mounted in the anvil 91 of the ultrasonic welding apparatus 90, and the electric wire 50 is arrange | positioned to this electric wire connection member 20. FIG. . At this time, the covering portion 52A of the core wire 52 is positioned between the extended portion 22 of the wire connecting member 20 and the pair of side walls 24C and 24F facing each other in the Y direction.

  6B, the base 31 of the cover member 30 is positioned between the side walls 24A to 24C and the side walls 24D to 24F, and the side walls 24A to 24C are positioned between the protrusions 32A to 32D of the cover member 30. And the side walls 24 </ b> D to 24 </ b> F are positioned between the protruding portions 32 </ b> E to 32 </ b> H of the cover member 30. Thereafter, as shown in FIG. 6C, the cover member 30 is placed on the core wire 52 of the electric wire 50 placed on the electric wire connecting member 20, and the hand (finger) is pressed against the upper surface 30 </ b> A of the cover member 30 to cover the cover member 30. The member 30 is lightly pressed down.

  Thereafter, as shown in FIG. 6D, the horn 92 of the ultrasonic welding apparatus 90 is pressed against the cover member 30 to press the cover member 30. At this time, as described above, the side walls 24A to 24C are located between the protrusions 32A to 32D and the side walls 24D to 24F are located between the protrusions 32E to 32H. When pressed by 92, the cover member 30 is pushed down with the side walls 24A-24F fitted between the protrusions 32A-32H.

  Thereafter, as shown in FIG. 6D, the horn 92 is vibrated ultrasonically. By this ultrasonic vibration, a plurality of strands constituting the core wire 52 and the oxide film and dirt existing on the wire connecting member 20 and the cover member 30 are removed, and movement of metal atoms caused by the ultrasonic vibration is caused between the metal atoms. A strong attractive force is generated, and metal atoms are bonded to each other to be in a solid phase welding state. As a result, the core wire 52 is welded to the wire connecting member 20 and the cover member 30 (ultrasonic welding). Further, due to the ultrasonic vibration, the plurality of strands of the core wire 52 are rubbed and integrated with each other. Thereby, 1 A of electric wires with a terminal before crimping before forming the insulation barrel part 21 are formed.

  At the time of this ultrasonic welding, the core wire 52 is violently pressed by the horn 92 and receives ultrasonic vibration from the horn 92. Trying to jump out of the gap between the horn 92 and the horn 92. However, as shown in FIG. 4, the side walls 24 </ b> A to 24 </ b> F are erected at both edges in the Y direction of the wire connecting member 20, and therefore the strands are Y at the portions where the side walls 24 </ b> A to 24 </ b> F are erected. Jumping out in the direction is prevented. Further, as shown in FIG. 5, since the core wire 52 is covered with the cover member 30, the strands are prevented from jumping upward at the portion where the projecting portions 32 </ b> A to 32 </ b> H are located.

  Finally, as shown in FIG. 1, the extension portion 22 of the pre-crimp terminal-attached electric wire 1 </ b> A is bent upward and then crimped to crimp the covering 51 of the electric wire 50 to form the insulation barrel portion 21. Thereby, the electric wire 1 with a terminal shown in FIG. 1 is completed.

  As described above, according to the present manufacturing method, ultrasonic welding can be performed after covering the core wire 52 with the cover member 30, so that the core wire 52 can be prevented from jumping out above the terminal 10. .

  6D, the side walls 24A to 24C are located between the protrusions 32A to 32D spaced apart from each other in the X direction, and the side walls 24D to 24F are located between the protrusions 32E to 32H spaced apart from each other in the X direction. Since it is in a positioned state (for example, the side wall 24A is positioned between the protrusion 32A (first protrusion) and the protrusion 32B (second protrusion)), ultrasonic welding is performed. Even when the terminal 10 vibrates in the X direction due to the ultrasonic vibration, the relative positional relationship in the X direction between the wire connecting member 20 and the cover member 30 is suppressed from shifting.

  In addition, although the insulation barrel part 21 was formed after ultrasonically welding the electric wire to the terminal 10 in the manufacturing method mentioned above, ultrasonic welding may be performed after forming the insulation barrel part 21.

  In the first embodiment described above, as shown in FIG. 5, the side walls 24 </ b> A to 24 </ b> F are not provided in the portions where the protruding portions 32 </ b> A to 32 </ b> H are located. There is a possibility that the 52 strands may jump out in the Y direction. The second embodiment described below is for solving such a problem. Here, FIG. 7 is a front view showing the terminal-attached electric wire 2 including the terminal 200 according to the second embodiment of the present invention, and FIG. 8 is a perspective view showing the cover member 130 of the terminal 200 shown in FIG. is there.

  As shown in FIG. 7, the terminal-attached electric wire 2 is a terminal in which the core wire 52 at the end on the + X direction side is exposed from the coating 51 and the exposed core wire 52 is welded by ultrasonic welding. 200. The terminal 200 includes an electric wire connecting member 20 on which the electric wire 50 is placed and a cover member 130 that covers the core wire 52 of the electric wire 50 from above. As in the above-described embodiment, the side walls 24A to 24C are erected on the edge on the + Y direction side of the wire connecting member 20, and the side walls 24D to 24F are erected on the edge on the −Y direction side. (See FIG. 3).

  As shown in FIG. 8, the cover member 130 includes a base 131 located at the center, protrusions 132 </ b> A to 132 </ b> D protruding in the −Y direction from the edge 131 </ b> A on the −Y direction side of the base 131, and + Y of the base 131. Projecting portions 132E to 132H projecting in the + Y direction from the edge 131B on the direction side, pop-out suppressing portions 133A to 133D extending downward (−Z direction) from the −Y direction end of the projecting portions 132A to 132D, and projecting And pop-out suppressing portions 133E to 133H extending downward from the + Y direction side ends of the portions 132E to 132H.

  As shown in FIG. 7, in the terminal 200, the side walls 24A to 24C of the cover member 130 of the cover member 130 are positioned between the side walls 24A to 24C and the side walls 24D to 24F. The side walls 24 </ b> D to 24 </ b> F are configured to be positioned between the pop-out suppressing portions 133 </ b> E to 133 </ b> H. The terminal-attached electric wire 2 is configured by covering the core wire 52 from above with such a cover member 130.

  According to such a terminal 200, the following effects can be obtained. Here, FIG. 9 is a cross-sectional view corresponding to FIG.

  As shown in FIG. 9, in the cover member 130, the protrusions 132B and 132D protrude outward from the inner surfaces 40A and 40D of the side walls 24A and 24D, and the protrusions 133B and 133D protrude from the tip ends of the protrusions 132B and 132D. Is configured to extend downward. With such a configuration, the core wire 52 is covered by the cover member 130 between the side wall 24A and the side wall 24B (that is, the portion where the side wall is not provided) from the upper side to the side (−Y direction side). It is in the state. Further, the upper side and the side (+ Y direction side) are covered with the cover member 130 between the side wall 24D and the side wall 24E (that is, the portion where the side wall is not provided).

  That is, the core wire 52 is located at the + X direction side from the side wall 24A, between the side wall 24A and the side wall 24B, between the side wall 24B and the side wall 24C, and at the −X direction side from the side wall 24C. Both the upper side and the side (−Y direction side) are covered with the cover member 130. Further, the core wire 52 is in a portion on the + X direction side from the side wall 24D, between the side wall 24D and the side wall 24E, between the side wall 24E and the side wall 24F, and on a portion on the −X direction side from the side wall 24F. Both the upper side and the side (+ Y direction side) are covered with the cover member 130.

  Therefore, as shown in FIG. 9, according to the terminal 200, when the electric wire 50 is ultrasonically welded to the terminal 200, the strands of the core wire 52 are formed even in a portion where the side walls 24 </ b> A to 24 </ b> F are not provided. Jumping out in the Y direction is suppressed by the popping out suppression units 133A to 133H. Further, the protruding portions 132A to 132H prevent the strands of the core wire 52 from protruding upward.

  In addition, it is preferable to make the length in the Z direction of the pop-out suppressing portions 133A to 133H such that the pop-out suppressing portions 133A to 133H do not hit the electric wire connecting member 20 during ultrasonic welding.

  Next, a third embodiment of the present invention will be described. As described above, when the terminal-attached electric wire 1 is manufactured, the cover member 30 is covered with the electric wire 50, and then the cover member 30 is lightly pushed down by hand (see FIG. 6C). The relative position with respect to 50 may shift, and the position of the electric wire 50 may not be determined. The third embodiment is for solving such a problem. Here, FIG. 10 is a front view showing the terminal-attached electric wire 3 including the terminal 300 according to the third embodiment of the present invention.

  As shown in FIG. 10, the terminal-attached electric wire 3 includes an electric wire 50 in which the core wire 52 at the end on the + X direction side is exposed from the coating 51, and a terminal 300 in which the exposed core wire 52 is ultrasonically welded. It has. The terminal 300 includes a wire connecting member 20 on which the electric wire 50 is placed and a cover member 230 that covers the core wire 52 from above. The cover member 230 includes a positioning portion 233 extending downward from the end portion on the + X direction side.

  According to the present embodiment, since such a positioning portion 233 is provided at the end of the cover member 230 on the + X direction side, when the cover member 230 is manually pressed when the terminal-attached electric wire 3 is manufactured ( 6C), by pressing down the cover member 230 while keeping the end portion of the core wire 52 on the + X direction side in contact with the positioning portion 233, the relative relationship between the electric wire 50 and the electric wire connecting member 20 can be reduced. The target position is prevented from shifting. That is, the electric wire 50 can be easily positioned.

  In addition, it is preferable to make the length of the positioning portion 233 in the Z direction so that the positioning portion 233 does not hit the wire connecting member 20 during ultrasonic welding.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and it goes without saying that the present invention may be implemented in various forms within the scope of the technical idea.

  For example, the terminals in the first to third embodiments described above are configured to be line symmetric with respect to the center line P on the Y axis (see FIG. 2), but the base of the cover member is placed on the wire. Each of the protrusions is positioned adjacent to the side wall of the wire connecting member in the X direction and positioned outside the inner surface of the side wall of the wire connecting member in a state of being positioned between the side walls located on both edges of the member. If it is configured so as to extend to the position, it is not necessary to configure the terminal so as to be symmetric with respect to the center line P on the Y axis. For example, the protruding portion located on the + Y direction side of the cover member is formed to be shifted from the position of the first to third embodiments in the X direction (longitudinal direction), and correspondingly, the side wall located on the + Y direction side May be formed shifted from the position in the X direction in the first to third embodiments.

  Moreover, although the terminal in the 1st thru | or 3rd embodiment mentioned above is comprised so that all the side walls may have the same dimension and external shape (refer FIG. 3), the base part of a cover member is an electric wire mounting member. Each of the protrusions is positioned adjacent to the side wall of the wire connecting member in the X direction and positioned outside the inner surface of the side wall of the wire connecting member in a state of being positioned between the side walls positioned at both edges. If it is comprised so that it may extend to, the dimension or external shape of a side wall may be changed as needed. Moreover, you may change the dimension and external shape of a protrusion part according to the change of the dimension or external shape of a side wall.

  In the first to third embodiments described above, three side walls (that is, six side walls) are provided on each of both edge portions in the Y direction of the wire connecting member (see FIG. 3). As long as at least one side wall (that is, at least two side walls) is provided on each of both edges, the number and position of the side walls may be arbitrarily changed. In addition, when many side walls are provided, since the separation distance between the side walls adjacent to each other in the X direction is shortened, there is an advantage that it is possible to effectively suppress the strands from jumping out from between the side walls in the Y direction.

  It goes without saying that the number and position of the protrusions of the cover member can be changed according to the change in the number and position of the side walls. However, in the present invention, one protruding portion is formed adjacent to one side wall from the viewpoint of suppressing upward jumping of the element wire in a portion where the side wall is not provided. In other words, one protrusion is formed corresponding to one side wall. Therefore, when one side wall (that is, two side walls) is provided at each of both edge portions in the Y direction of the wire connecting member, two protrusions are formed on the cover member. That is, according to the present invention, at least two protrusions are formed on the cover member.

  Further, in the first to third embodiments described above, the cover member has the base of the cover member located between the side wall on the + Y direction side and the side wall on the −Y direction side. Each is configured to be located inside the position of the outer surface of the side wall (see FIG. 2), but at least one of the projecting portions may be configured to project to the position of the outer surface of the side wall.

  In order to prevent the protrusion from coming into contact with the side jig of the ultrasonic welding apparatus during ultrasonic welding, the position of the tip of the protrusion is more than the position of the outer surface of the side wall or the outer surface of the side wall. The inner position is preferred.

  Note that the terms “lower”, “upper”, “upper”, “lower”, “upper”, “lower”, and other positional relationships used in this specification are related to the illustrated embodiment. And is changed depending on the relative positional relationship of the apparatus.

1, 2 and 3 Electric wire with terminal 1A Electric wire with terminal before crimping 10 Terminal 20 Electric wire connecting member 21 Insulation barrel part 22 Expansion part 23 Mounting part 23A, 23B Edge part 24A-24F Side wall 27 Bolt fastening hole 30 Cover member 31 Base part 31A, 31B Edges 32A-32H Protrusion 40A-40F Inner surface 50 Electric wire 51 Covering 52 Core wire 52A Covering 90 Ultrasonic welding apparatus 91 Anvil 92 Horn 130 Cover member 131 Base 131A, 131B Edge 132A-132H Protrusion 133A- 133H Pop-out suppressing part 200 terminal 230 Cover member 233 Positioning part 300 terminal

Claims (8)

An electric wire connecting member to which the end of the core wire of the electric wire extending in the longitudinal direction is welded;
A cover member covering an end portion of the core wire of the electric wire welded to the electric wire connecting member;
The wire connecting member is
A mounting portion that extends in the longitudinal direction and a width direction perpendicular to the longitudinal direction, and on which an end of the core of the electric wire is mounted;
A side wall extending in a thickness direction perpendicular to both the longitudinal direction and the width direction at at least one of each of the two edge portions of the mounting portion in the width direction;
The cover member is
A base extending in the longitudinal direction and the width direction;
Having at least two protrusions protruding in the width direction from each of both edges of the base,
In the cover member, each of the at least two protrusions is adjacent to the side wall of the electric wire connecting member in the longitudinal direction in a state where the base portion is located between the side walls of both edge portions of the mounting portion. And is configured to extend to a position outside the inner surface of the side wall of the wire connecting member,
Terminal.   The terminal according to claim 1, wherein the side wall is provided at a plurality of locations in each of both edges of the placement portion in the width direction. The at least two protrusions include a first protrusion and a second protrusion that are spaced apart from each other in the longitudinal direction;
The cover member is configured such that the side wall is positioned between the first projecting portion and the second projecting portion in a state where the base portion is positioned between the side walls of both edge portions of the mounting portion. Configured to,
The terminal according to claim 1 or 2.   The terminal according to any one of claims 1 to 3, wherein the cover member further includes a protrusion suppressing portion that extends in the thickness direction at at least one position of a tip portion of the protrusion in the width direction.   The terminal according to any one of claims 1 to 4, wherein the cover member further includes a positioning portion extending in the thickness direction at a tip portion in the longitudinal direction.   The terminal according to any one of claims 1 to 5, wherein the cover member is formed of the same material as the core wire.   In the cover member, the protrusion is located on the outer surface of the side wall of the wire connecting member or on the inner side of the outer surface in a state where the base portion is located between the side walls of both edge portions of the mounting portion. The terminal according to claim 1, wherein the terminal is configured to extend to a position. The terminal according to any one of claims 1 to 7,
A wire having a core wire electrically connected to the terminal;
The core of the electric wire is ultrasonically welded to both the electric wire connecting member and the cover member of the terminal,
Electric wire with terminal.

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