JP2009152111A - Crimp terminal and terminal-equipped wire with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal-equipped wire that can satisfy both of electrical conductivity and mechanical connection strength between an wire and a crimp terminal when a conductor wire is particularly a wire consisting of aluminum or aluminum alloy. <P>SOLUTION: A terminal-equipped wire 100A includes the wire 2 and a crimp terminal 1A crimped on an end of the wire 2. The crimp terminal 1A includes: a first barrel wall 11 crimped on an exposed portion in which conductor wires 4 at the end is exposed to outside; and a second barrel wall crimped on a covered portion in which the conductor wires 4 are covered with an insulator 3. The second barrel wall includes front barrel walls 13, 14 and rear barrel walls 17, 18, and the front barrel walls 13, 14 and rear barrel walls 17, 18 are crimped on the covered portion such that a center axis of the wire 2 extending along a bottom wall 10 is shifted between the front barrel walls 13, 14 and the rear barrel walls 17, 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a crimp terminal crimped to an end of an electric wire and a terminal-attached electric wire including the same.

Conventionally, as a terminal-attached electric wire having a plurality of conductor wires covered with an insulator and having an electric wire from which the conductor wire is exposed at a terminal and a crimp terminal to be crimped to the terminal, for example, one disclosed in Patent Document 1 is known. Yes. The crimp terminal of the electric wire with terminal has a wire barrel that is crimped to an exposed portion of the conductor wire at the end of the wire, and an insulation barrel that is crimped to a covering portion where the conductor wire is covered with an insulator. .
Japanese Utility Model Publication No. 5-72053

  Such a crimp terminal is required to satisfy both the electrical continuity between the conductor wire and the crimp terminal and the mechanical connection strength (that is, the strength with which the crimp terminal holds the electric wire). For an electric wire having a small cross-sectional area, it is difficult to satisfy both electrical conductivity and mechanical connection strength.

  For example, an oxide film is easily formed on the surface of a conductor wire made of aluminum or an aluminum alloy, and this oxide film causes contact resistance between the conductor wire and the crimp terminal, and therefore needs to be broken. If the wire barrel is strongly crimped to the conductor wire to such an extent that the oxide film is destroyed, the contact resistance is lowered, and the advantage of ensuring electrical conductivity between the conductor wire and the crimp terminal is obtained. Since the reduction rate of the cross-sectional area of the conductor wire becomes high, there arises a disadvantage that the connection strength between the wire barrel and the conductor wire is lowered. Conversely, if the reduction rate of the cross-sectional area of the conductor wire is lowered in order to ensure the connection strength, there arises a disadvantage that the contact resistance increases. Thus, in the case where an aluminum electric wire made of aluminum or an aluminum alloy is used as the conductor wire, it is difficult to satisfy both electrical conductivity and connection strength. Regardless of such an aluminum electric wire, the same inconvenience also arises in a small-diameter electric wire already having a small cross-sectional area before the crimping.

  In Patent Document 1, a through hole or a recess is formed in the insulation barrel, and when the insulation barrel is crimped to the covering portion of the electric wire, a part of the insulator is bitten into the through hole or the recess. The structure which relieves the shocking tensile force which acts on an electric wire is adopted. However, it is difficult to ensure sufficient tensile strength (that is, connection strength between the electric wire and the crimp terminal) with respect to the tensile force only by causing a part of the insulator to bite into the through hole or the recess. In such a crimp terminal, if the reduction rate of the cross-sectional area of the conductor wire is increased in order to ensure the connection strength between the conductor wire and the wire barrel, the contact resistance increases and sufficient electrical conductivity cannot be obtained. . Thus, in patent document 1, it is difficult to satisfy both the electrical continuity and connection strength between a crimp terminal and an electric wire.

  Therefore, in view of such circumstances, the present invention can improve the mechanical connection strength between the electric wire and the crimp terminal, and in the case where the conductor wire is an electric wire made of aluminum or an aluminum alloy, The purpose is to provide a technology that can satisfy both the connection strength and the connection strength.

  In order to achieve the above object, a terminal-attached electric wire according to the present invention covers a plurality of conductor wires with an insulator, an electric wire from which the conductor wire is exposed at a terminal, and a crimp terminal that is crimped to the terminal of the electric wire. And. The crimp terminal rises from the bottom wall on which the electric wire is placed, a first barrel wall that rises from the bottom wall and is crimped to an exposed portion of the terminal where the conductor wire is exposed, and rises from the bottom wall, And a second barrel wall that is crimped to the covering portion covered with the insulator. The second barrel wall includes a front barrel wall and a rear barrel wall, and the front barrel wall and the rear barrel wall have a central axis extending along the bottom wall of the electric wire, and the front barrel wall and the rear barrel wall. It is crimped | bonded to the said coating | coated part so that it may slip | deviate in a rear side barrel wall.

  According to the terminal-attached electric wire of the present invention, the bottom wall extends because the central axis of the electric wire applies a crimping force to the front barrel wall and the rear barrel wall to such an extent that the central axis of the electric wire deviates between the front barrel wall and the rear barrel wall. A step is formed between the front barrel wall and the rear barrel wall as viewed from the direction. With this step, the electric wire is caught between the front barrel wall and the rear barrel wall. Therefore, even if a shocking tensile force is applied to the electric wire, the electric wire is not easily pulled out by the step. Thus, in this invention, high tensile strength is securable with respect to the said tensile force. As a result, the connection strength between the electric wire and the crimp terminal is improved.

  In a preferred embodiment of the present invention, one of the front barrel wall and the rear barrel wall is crimped so as to be deformed flat in the left-right direction of the bottom wall when viewed from the direction in which the bottom wall extends. On the other hand, the other barrel wall is pressure-bonded so as to be flatly deformed in the vertical direction of the bottom wall when viewed from the extending direction of the bottom wall, and the central axis of the electric wires is the front barrel wall and the rear barrel. The wall is shifted in the vertical direction when viewed from the direction in which the bottom wall extends.

  In a further preferred embodiment of the present invention, one of the front barrel wall and the rear barrel wall is crimped so as to be deformed in the right direction of the bottom wall when viewed from the direction in which the bottom wall extends. On the other hand, the other barrel wall is crimped so as to be deformed to the left of the bottom wall when viewed from the direction in which the bottom wall extends, and the central axis of the electric wire is at the front barrel wall and the rear barrel wall. The bottom wall is displaced in the left-right direction when viewed from the extending direction.

  The step is crimped so that one of the front barrel wall and the rear barrel wall is deformed flat in the left-right direction of the bottom wall when viewed from the direction in which the bottom wall extends, and the other barrel wall is fixed to the bottom wall. Even if it is formed in the vertical direction between the front barrel wall and the rear barrel wall as viewed from the direction in which the bottom wall extends, it is crimped so as to be deformed flat in the vertical direction of the bottom wall as viewed from the direction in which the bottom wall extends. Good. Further, the step is crimped so that one of the front barrel wall and the rear barrel wall is deformed to the right of the bottom wall when viewed from the direction in which the bottom wall extends, and the other barrel wall is fixed to the bottom wall. You may form in the left-right direction between a front barrel wall and a rear barrel wall seeing from the direction which a bottom wall extends by crimping | bonding so that it may deform | transform to the left direction of a bottom wall seeing from the extension direction.

  In a preferred embodiment of the present invention, in the crimp terminal, the second barrel wall is composed of a pair of first and second barrel portions facing each other, and each of the first barrel portion and the second barrel portion is The metal plate is formed so as to include a front portion and a rear portion continuous from the front portion. One of the front portion and the rear portion is a plate thickness portion having a plate thickness larger than the other, and the other is a thin plate portion. The plate thickness portion and the thin plate portion are The first barrel portion and the second barrel portion are alternately formed, and a central axis extending along the bottom wall of the electric wire with the crimping of the second barrel wall to the covering portion is the first barrel. And the second barrel portion are displaced in the left-right direction when viewed from the direction in which the bottom wall extends.

  According to this configuration, the plate thickness portion and the thin plate portion are formed alternately in the first barrel portion and the second barrel portion, and the pressure bonding force of the thick plate portion against the covering portion is the pressure bonding force of the thin plate portion against the covering portion. Therefore, the first barrel portion and the second barrel portion are deformed in a meandering manner, that is, in the left-right direction of the bottom wall. Thereby, a level | step difference is formed between the 1st barrel part and the 2nd barrel part in the left-right direction of a bottom wall seeing from the direction where a bottom wall is extended. By this step, the electric wire is caught between the first barrel portion and the second barrel portion. Therefore, even if a shocking tensile force acts on the electric wire, the electric wire is difficult to come off due to the step. Thus, in this invention, high tensile strength is securable with respect to the said tensile force. As a result, the connection strength between the electric wire and the crimp terminal is improved.

  In the above crimp terminal, the thin plate portion may be configured to be recessed from the thick plate portion, and the thick plate portion includes the first barrel portion and the second barrel. You may be comprised by the folding | turning part formed by folding the protrusion piece which protrudes from the front-end | tip of a part inside. As described above, the thick plate portion and the thin plate portion can have a simple structure, and can make a difference between the pressure-bonding force applied to the covering portion of the thick-plate portion and the pressure-bonding force applied to the covering portion of the thin plate portion. That is, it is easy to form a step between the first barrel portion and the second barrel portion.

  In the present invention, the conductor wire may be made of aluminum or an aluminum alloy.

  The present invention is particularly advantageous when the conductor wire is an electric wire made of aluminum or an aluminum alloy. As described above, when an electric wire made of aluminum or an aluminum alloy is used, it is difficult to satisfy both electrical conductivity and connection strength. However, in the present invention, the second barrel wall is crimped to the covering portion so that the electric wire is hooked on the step formed between the first barrel portion and the second barrel portion, so that the shocking force acting on the electric wire is affected. Since the strength against the tensile force, that is, the connection strength between the electric wire and the crimp terminal is improved, the first barrel wall is strongly crimped to the conductor wire to such an extent that the oxide film is broken to ensure electrical conductivity. That is, even if the reduction rate of the cross-sectional area of the conductor wire is increased, the connection strength between the electric wire and the first barrel wall and the second barrel wall can be ensured. Therefore, according to the configuration of the present invention, even if the conductor wire is an electric wire made of aluminum or an aluminum alloy, it is possible to satisfy both electric conductivity and connection strength.

  According to the electric wire with terminal of the present invention, it is possible to improve the mechanical connection strength between the electric wire and the crimp terminal, and in the case where the conductor wire is an electric wire made of aluminum or an aluminum alloy, the electric conductivity and the connection strength. It is possible to satisfy both.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a terminal-attached electric wire 100A according to an embodiment of the present invention. The terminal-attached electric wire 100 </ b> A includes an electric wire 2 and a crimp terminal 1 </ b> A that is crimped to the electric wire 2. The electric wire 2 has a plurality of conductor wires 4 arranged in the form of stranded wires, and an insulation coating 3 that covers the conductor wires 4 with an insulator, and the insulation coating 3 is partially removed at the terminal. Thus, the conductor wire 4 is exposed. The crimp terminal 1 is crimped to the terminal. The conductor wire 4 is made of, for example, aluminum or an aluminum alloy.

  FIG. 2 is a perspective view showing the crimp terminal 1 </ b> A before being crimped to the end of the electric wire 2. The crimp terminal 1 </ b> A has an electrical contact portion 7 and an electrical wire crimp portion 9 in the front and rear as in the conventional crimp terminal. In the first embodiment, the electrical contact portion 7 is a female type and is formed in a box shape into which a male terminal (not shown) can be fitted. The electric wire crimping portion 9 includes a bottom wall 10 extending from the electrical contact portion 7 in the longitudinal direction of the crimp terminal, a pair of wire barrels (first barrel walls) 11 rising from the bottom wall 10, and an electrical contact portion sandwiching the wire barrel 11. 7, a pair of first insulation barrels (front barrel walls) 13 and 14 rising from the bottom wall 10 at a position opposite to the wire barrel 11 and at a predetermined distance from the wire barrel 11, and a first insulation barrel 13 , 14 have second insulation barrels (rear barrel walls) 17, 18 rising from the bottom wall 10 at positions separated by a predetermined distance. The wire barrel 11, the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18 rising from the bottom wall 10 have a U-shaped front shape. The crimp terminal 1A is formed into a shape shown in FIG. 2 by punching one metal plate into a predetermined shape and bending it.

  In the crimping step of crimping the crimp terminal 1A to the end of the electric wire 2, first, at the end of the electric wire 2, the insulation coating 3 is removed to expose the conductor wire 4, and the end is set on the bottom wall 10 of the crimp terminal 1A. . Next, by crimping the wire barrel 11, the first insulation barrels 13 and 14, and the second insulation barrels 17 and 18 of the wire crimping portion 9 of the crimp terminal 1 </ b> A toward the bottom wall 10, the crimp terminal 1 </ b> A is obtained. Crimped to the end of the electric wire 2.

  Specifically, the pair of wire barrels 11 is bent so as to embrace the exposed portion where the conductor wire 4 is exposed at the end of the electric wire 2. Further, as shown in FIG. 3A, the pair of first insulation barrels 13 and 14 are bent so as to embrace the insulation coating 3 immediately behind the exposed portion of the electric wire 2, The inner side surface 13a of the insulation barrel 13 and the outer side surface 14a of the insulation barrel 14 are overlapped. Further, as shown in FIG. 4B, the pair of second insulation barrels 17 and 18 are bent so as to embrace the insulation coating 3 of the electric wire 2 behind the first insulation barrels 13 and 14. At this time, the inner side surface 17a of the insulation barrel 17 and the outer side surface 18a of the insulation barrel 18 are overlapped.

  As shown in FIG. 3A, the pair of first insulation barrels 13 and 14 are flat in the direction in which the bottom wall 10 extends, that is, in the longitudinal direction of the crimp terminal 1A, for example, in the left-right direction. It is crimped to the electric wire 2 so as to be deformed. On the other hand, as shown in FIG. 3B, the pair of second insulation barrels 17 and 18 are deformed flat, for example, in the vertical direction of the bottom wall 10 when viewed from the longitudinal direction of the crimp terminal 1A. The wire 2 is crimped to the wire 2. As described above, the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18 are formed so that the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18 have different flat shapes. By applying a crimping force to the first insulation barrel 13, 14 and the second insulation barrel 17, 18, there is a step S (FIG. 1) extending in the vertical direction when viewed from the longitudinal direction of the crimp terminal 1 A. It is formed. In this state, the central axis extending along the bottom wall 10 of the electric wire 2 is shifted in the vertical direction when viewed from the longitudinal direction of the crimp terminal 1A in the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18. ing.

  In the present invention, the central axis of the electric wire 2 is adjusted between the first insulation barrels 13 and 14 and the second insulation by the step S formed between the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18. Since the barrels 17 and 18 are displaced in the vertical direction when viewed from the direction in which the bottom wall 10 extends, even if a shocking tensile force acts on the electric wire 2, the electric wire 2 is hardly pulled out by the step S. Thus, in this invention, high tensile strength is securable with respect to the said tensile force. As a result, the connection strength between the electric wire 2 and the crimp terminal 1A is improved.

  In the present invention, it is particularly advantageous when the conductor wire 4 is made of aluminum or an aluminum alloy, or when the electric wire 2 has a small diameter. In the present invention, since the connection strength between the conductor wire 4 and the crimp terminal 1A is improved by the first insulation barrels 13 and 14 and the second insulation barrels 17 and 18, when the wire 2 is an aluminum wire, Even if the wire barrel 11 is strongly pressure-bonded to the conductor wire 4 to such an extent that the oxide film is broken to ensure electric conductivity, that is, even if the reduction rate of the cross-sectional area of the conductor wire 4 is increased, the conductor wire 4 and the connection strength between the wire barrel 11, the first insulation barrels 13 and 14, and the second insulation barrels 17 and 18 can be ensured. Therefore, according to the present invention, even if the conductor wire 4 is an electric wire 2 made of aluminum or an aluminum alloy or a thin-diameter electric wire 2, it is possible to satisfy both electrical conductivity and connection strength.

  FIG. 4 is a perspective view showing a crimp terminal 1B having a different form from the crimp terminal 1A shown in FIG. The crimp terminal 1B includes a bottom wall 10 extending from the electrical contact portion 7 (FIG. 2) in the longitudinal direction of the crimp terminal 1B, a pair of wire barrels 11 rising from the bottom wall 10, and the electrical contact portion 7 sandwiching the wire barrel 11. Includes an insulation barrel made up of a pair of first barrel portion 25 and second barrel portion 28 rising from the bottom wall 10 at opposite positions.

  The first barrel portion 25 includes a front portion 26 and a rear portion 27, and the second barrel portion 28 similarly includes a front portion 29 and a rear portion 30. The first barrel portion 25 has different thicknesses at the front side portion 26 and the rear side portion 27. In the first barrel portion 25, the inner side surface 27 a of the rear side portion 27 is molded into a surface that is recessed from the inner side surface 26 a of the front side portion 26 so that a step 32 is formed between the front side portion 26 and the rear side portion 27. Thus, the front portion 26 is a thick plate portion and the rear portion 27 is a thin plate portion. On the other hand, in the second barrel portion 28, the inner side surface 29a of the front side portion 29 is recessed from the inner side surface 30a of the rear side portion 30 to such an extent that a step 32 is formed between the front side portion 29 and the rear side portion 30. By molding on the surface, the front portion 29 is a thin plate portion and the rear portion 30 is a thick plate portion. As described above, the plate thickness portions 26 and 30 and the thin plate portions 27 and 29 are alternately formed in the first barrel portion 25 and the second barrel portion 28.

  In the crimp terminal 1B, the plate thickness portions 26 and 30 and the thin plate portions 27 and 29 are formed alternately in the first barrel portion 25 and the second barrel portion 28, and the thick plate portions 26 and 30 are connected to the electric wire 2. The pressure-bonding force is increased by the thickness of the thin plate portions 27 and 29 with respect to the electric wire 2, so that the first barrel portion 25 and the second barrel portion 28 are fixed to the bottom wall 10 when being crimped to the electric wire 2. Deforms in the left-right direction. Specifically, the crimping force of the front side portion (thick plate portion) 26 of the first barrel portion 25 to the electric wire 2 is larger than the crimping force of the front side portion (thin plate portion) 29 of the second barrel portion 28 to the electric wire 2. The first barrel portion 25 and the second barrel portion 28 are deformed from the right direction at the front side portions 26 and 29 when viewed from the longitudinal direction of the crimp terminal 1B. On the other hand, the crimping force of the rear portion (thick plate portion) 30 of the second barrel portion 28 to the electric wire 2 is larger than the crimping force of the front portion (thin plate portion) 27 of the first barrel portion 25 to the electric wire 2. The first barrel portion 25 and the second barrel portion 28 are deformed from the left in the rear portions 27 and 30 when viewed from the longitudinal direction of the crimp terminal 1B. In this state, the central axis extending along the bottom wall 10 of the electric wire 2 is shifted in the left-right direction when viewed from the direction in which the bottom wall 10 extends in the first barrel portion 25 and the second barrel portion 28.

  As described above, when the first barrel portion 25 and the second barrel portion 28 are deformed, the bottom wall 10 is formed between the first barrel portion 25 and the second barrel portion 28 when viewed from the longitudinal direction of the crimp terminal 1B. A step (not shown) is formed in the left-right direction. By this step, the central axis of the electric wire 2 is shifted in the left-right direction when viewed from the direction in which the bottom wall 10 extends in the first barrel portion 25 and the second barrel portion 28. Therefore, even if a shocking tensile force acts on the electric wire 2, the electric wire 2 is hardly pulled out by the step. Thus, in this invention, high tensile strength is securable with respect to the said tensile force. As a result, the connection strength between the electric wire 2 and the crimp terminal 1B is improved.

  Although the front portion 26 and the rear portion 27 of the first barrel portion 25 are the thick plate portion and the thin plate portion, and the front portion 29 and the rear portion 30 of the second barrel portion 28 are the thin plate portion and the thick plate portion, The front portion 26 and the rear portion 27 of the first barrel portion 25 may be thin plate portions and thick plate portions, and the front portion 29 and the rear portion 30 of the second barrel portion 28 may be thick plate portions and thin plate portions.

  FIG. 5 is a perspective view showing a crimp terminal 1C of still another form of the crimp terminal 1A shown in FIG. The crimp terminal 1 </ b> C includes a bottom wall 10 extending in the longitudinal direction of the crimp terminal 1 </ b> C from the electrical contact portion 7 (FIG. 2), a pair of wire barrels 11 rising from the bottom wall 10, and the electrical contact portion 7 sandwiching the wire barrel 11. Includes an insulation barrel made up of a pair of first barrel portion 25 and second barrel portion 28 rising from the bottom wall 10 at opposite positions.

  The first barrel portion 25 includes a front portion 35 and a rear portion 38, and the second barrel portion 28 similarly includes a front portion 40 and a rear portion 36. The first barrel portion 25 and the second barrel portion 28 have different thicknesses at the front side portions 35 and 40 and the rear side portions 38 and 36. The first barrel portion 25 has a protruding piece 35 protruding from the front end of the first barrel portion 25, and the protruding piece 35 is folded inward toward the bottom wall 10 to form a folded portion. ing. In the first barrel portion 25, the folded portion (front portion) 35 is a thick plate portion, and the rear portion 38 is a thin plate portion. On the other hand, the second barrel portion 28 has a protruding piece 36 protruding from the rear end of the second barrel portion 28, and the protruding piece 36 is folded back inward toward the bottom wall 10. Forming part. In the first barrel portion 25, the folded portion (rear side portion) 36 is a thick plate portion, and the front portion 40 is a thin plate portion. As described above, the plate thickness portions 35 and 36 and the thin plate portions 38 and 40 are alternately formed in the first barrel portion 25 and the second barrel portion 28.

  In the crimp terminal 1 </ b> C, the plate thickness portions 35 and 36 and the thin plate portions 38 and 40 are alternately formed in the first barrel portion 25 and the second barrel portion 28, and the thick plate portions 35 and 36 with respect to the electric wire 2. Since the crimping force is increased by the thickness of the thin plate portions 38 and 40 with respect to the electric wire 2, the first barrel portion 25 and the second barrel portion 28 are bottom wall 10 when being crimped to the electric wire 2. Deforms in the left-right direction. Specifically, since the crimping force of the front side portion (thick plate portion) 35 of the first barrel portion 25 to the electric wire 2 is larger than the crimping force of the front portion (thin plate portion) 40 of the second barrel portion 28 to the electric wire 2. The first barrel portion 25 and the second barrel portion 28 are deformed from the right direction at the front side portions 35 and 40 when viewed from the longitudinal direction of the crimp terminal 1C. On the other hand, the crimping force of the rear side portion (thick plate portion) 36 of the second barrel portion 28 to the electric wire 2 is larger than the crimping force of the front portion (thin plate portion) 38 of the first barrel portion 25 to the electric wire 2. The first barrel portion 25 and the second barrel portion 28 are deformed from the left in the rear portions 36 and 38 as viewed from the longitudinal direction of the crimp terminal 1C. In this state, the central axis extending along the bottom wall 10 of the electric wire 2 is shifted in the left-right direction when viewed from the direction in which the bottom wall 10 extends in the first barrel portion 25 and the second barrel portion 28.

  As described above, when the first barrel portion 25 and the second barrel portion 28 are deformed, the bottom wall 10 is formed between the first barrel portion 25 and the second barrel portion 28 as viewed from the longitudinal direction of the crimp terminal 1C. A step (not shown) is formed in the left-right direction. Due to this step, the electric wire 2 is shifted in the left-right direction when viewed from the direction in which the bottom wall 10 extends in the first barrel portion 25 and the second barrel portion 28. Therefore, even if a shocking tensile force acts on the electric wire 2, the electric wire 2 is hardly pulled out by the step. Thus, in this invention, high tensile strength is securable with respect to the said tensile force. As a result, the connection strength between the electric wire 2 and the crimp terminal 1C is improved.

  Although the front portion 35 and the rear portion 38 of the first barrel portion 25 are the thick plate portion and the thin plate portion, and the front portion 40 and the rear portion 36 of the second barrel portion 28 are the thin plate portion and the thick plate portion, The front portion 35 and the rear portion 38 of the first barrel portion 25 may be thin plate portions and thick plate portions, and the front portion 40 and the rear portion 36 of the second barrel portion 28 may be thick plate portions and thin plate portions.

It is a perspective view which shows the electric wire with a terminal which concerns on embodiment of this invention. It is a perspective view which shows the crimp terminal before crimping to the terminal of an electric wire. (A) is sectional drawing cut | disconnected along XX of FIG. 1, (B) is sectional drawing cut | disconnected along X'-X 'of FIG. It is a perspective view which shows the crimp terminal of the other form of the crimp terminal shown in FIG. It is a perspective view which shows the crimp terminal of the further another form of the crimp terminal shown in FIG.

Explanation of symbols

1A to 1C Crimp terminal 2 Electric wire 3 Insulation coating 4 Conductor wire 7 Electrical contact portion 9 Wire crimp portion 10 Bottom wall 11 Wire barrel 13, 14 First insulation barrel 17, 18 Second insulation barrel 100A Terminal-attached wire S Step

Claims (8)

A plurality of conductor wires are covered with an insulator, and the conductor wires are exposed at the terminals; and
A crimp terminal to be crimped to the end of the electric wire;
A terminal-equipped electric wire with
The crimp terminal is
A bottom wall on which the electric wire is placed;
A first barrel wall that rises from the bottom wall and is crimped to an exposed portion where the conductor wire at the end is exposed;
A second barrel wall that rises from the bottom wall and is crimped to a covering portion in which the conductor wire is covered with the insulator;
Including
The second barrel wall comprises a front barrel wall and a rear barrel wall;
The front barrel wall and the rear barrel wall have terminals that are crimped to the covering portion so that a central axis extending along the bottom wall of the electric wire is shifted between the front barrel wall and the rear barrel wall. Electrical wire. 2. The electric wire with a terminal according to claim 1, wherein one of the front barrel wall and the rear barrel wall is crimped so as to be deformed flat in a left-right direction of the bottom wall as viewed from a direction in which the bottom wall extends. On the other hand, the other barrel wall is pressure-bonded so as to be deformed flat in the vertical direction of the bottom wall as seen from the extending direction of the bottom wall,
A central axis of the electric wire is a terminal-attached electric wire that is shifted in a vertical direction when viewed from a direction in which the bottom wall extends in the front barrel wall and the rear barrel wall. The electric wire with a terminal according to claim 1, wherein one of the front barrel wall and the rear barrel wall is crimped so as to be deformed in a right direction of the bottom wall when viewed from a direction in which the bottom wall extends. On the other hand, the other barrel wall is crimped so as to be deformed in the left direction of the bottom wall when viewed from the direction in which the bottom wall extends,
The central axis of the electric wire is a terminal-attached electric wire that is shifted in the left-right direction when viewed from the direction in which the bottom wall extends in the front barrel wall and the rear barrel wall. A crimp terminal that covers a plurality of conductor wires with an insulator and is crimped to the end of the electric wire at which the conductor wire is exposed,
A bottom wall on which the electric wire is placed;
A first barrel wall that rises from the bottom wall and is crimped to an exposed portion where the conductor wire at the end is exposed;
A second barrel wall that rises from the bottom wall and is crimped to a covering portion in which the conductor wire is covered with the insulator;
Including
The second barrel wall is composed of a pair of first and second barrel portions facing each other, and each of the first barrel portion and the second barrel portion is continuous from the front portion and the front portion. Is molded from a metal plate to include
One of the front portion and the rear portion is a plate thickness portion having a plate thickness larger than the other, and the other is a thin plate portion. The plate thickness portion and the thin plate portion are Are formed alternately in one barrel portion and the second barrel portion,
Along with the crimping of the second barrel wall to the covering portion, the central axis extending along the bottom wall of the electric wire is seen from the direction in which the bottom wall extends in the first barrel portion and the second barrel portion. Crimp terminals that are displaced in the horizontal direction.   5. The crimp terminal according to claim 4, wherein the thin plate portion is shaped so as to be recessed from the thick plate portion.   The crimp terminal according to claim 4, wherein the first barrel part and the second barrel part have a protruding piece protruding from a tip, and the protruding piece is folded inward to form a folded part. A crimp terminal in which the folded portion constitutes the thick plate portion. A plurality of conductor wires are covered with an insulator, and the conductor wires are exposed at the terminals; and
The crimp terminal according to any one of claims 4 to 6, which is crimped to the terminal of the electric wire,
Electric wire with terminal.   The electric wire with a terminal according to claim 1, wherein the conductor wire is made of aluminum or an aluminum alloy.

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