JP2020119734A - Terminal, electric wire with terminal and manufacturing method thereof - Google Patents

Abstract

An object of the present invention is to provide a terminal, an electric wire with a terminal, and a method for manufacturing the same, which suppress an increase in processing cost and have excellent corrosion resistance. SOLUTION: A crimping portion 5 of a terminal 1 comprises a conductor crimping portion 7, a covering crimping portion 9, and an inter-barrel portion 8 between the conductor crimping portion 7 and the covering crimping portion 9. - 特許庁At the tip of the covered conductor 11, the covering portion 15 is peeled off, and the conductor 13 inside is exposed. The covering portion 15 of the covered conductor wire 11 is crimped by the covering crimping portion 9 of the terminal 1 . Further, the conductor wire 13 exposed by peeling off the covering portion 15 is crimped by the conductor crimping portion 7 . The end face of the covering portion 15 is located in the inter-barrel portion 8 between the covering crimping portion 9 and the conductor crimping portion 7 . A convex portion 19 is formed on the upper surface of the inter-barrel portion 8 so as to protrude with respect to the conducting wire 13 . A gap between the conductive wire 13 and the upper surface of the inter-barrel portion 8 is formed by the convex portion 19 . [Selection drawing] Fig. 2

Description

The present invention relates to a terminal used in, for example, an automobile, an electric wire with a terminal, and a manufacturing method thereof.

Conventionally, in fields such as automobiles, OA equipment, and home electric appliances, electric wires made of a copper-based material having excellent electrical conductivity have been used as power lines and signal lines. In particular, in the field of automobiles, high performance and high functionality of vehicles are being rapidly advanced, and various kinds of electric devices and control devices mounted on vehicles are increasing. Therefore, along with this, the number of electric wires with terminals used tends to increase.

On the other hand, as environmental issues are drawing attention, weight reduction of automobiles is required. Therefore, there is a problem of an increase in weight due to an increase in usage of the wire harness. For this reason, lightweight aluminum electric wires have been attracting attention in place of the conventionally used copper wires.

Here, a connecting terminal is used when connecting such electric wires to each other or at a connecting portion such as a device. However, even in the case of an electric wire with a terminal using an aluminum electric wire, copper having excellent electric characteristics may be used in the terminal portion due to the reliability of the connection portion and the like. In such a case, an aluminum electric wire and a copper terminal are joined and used.

However, when different metals are brought into contact with each other, so-called electrolytic corrosion may occur due to the difference in standard electrode potential. In particular, since the standard electrode potential difference between aluminum and copper is large, corrosion of the aluminum side, which is electrically base, progresses due to the influence of water splashing on the contact portion and dew condensation. As a result, the connection between the wire and the terminal at the connection part becomes unstable, increasing the contact resistance, increasing the electric resistance due to the decrease in the wire diameter, and even breaking the wire, which may lead to malfunction of the electrical component or stop its function. is there.

Therefore, there has been proposed a method of covering the connecting portion between the electric wire and the terminal with a resin member. For example, there has been proposed an electric wire with a terminal in which a resin member is applied and covered on a conductor wire or the like exposed between the covered crimp portion and the conductor crimp portion (Patent Document 1).

FIG. 8: is a partial cross section figure of the conventional electric wire with a terminal. Usually, in the vicinity of the tip of the coated conductive wire 111, the coated portion 115 is removed and the conductive wire 103 inside is exposed. The exposed conductor wire 103 is crimped by the conductor wire crimping portion 107, and the covering portion 115 is crimped by the covering crimping portion 109. Since a part of the conductor wire 103 is exposed in the inter-barrel portion 108 between the cover crimping portion 109 and the conductor wire crimping portion 107, the inter-barrel portion 108 to the conductor wire crimping portion 107 are covered with the resin member 117.

However, at the boundary between the end of the covering portion 115 and the exposed portion of the conductive wire 103, a minute gap (X in the figure) is likely to occur due to a change in the outer diameter. When such a gap is generated, there is a possibility that the water that has permeated between the covering crimp portion 109 and the covering portion 115 may permeate into the conductor wire 103 and the conductor crimp portion 107. Therefore, in order to secure sufficient anticorrosion property, it is necessary to allow the resin member 117 to penetrate into the gap X and harden it.

In order to fill the gap X with the resin member 117, for example, a method has been proposed in which the conductive wire 103 is first pressure-bonded, the resin member 117 is applied, and then the covering portion 115 is pressure-bonded (for example, Patent Document 2).

In addition, a method has been proposed in which a hole is provided in the bottom surface of the inter-barrel portion 108 and the applied resin member 117 is sucked through the hole so that the resin member 117 penetrates into the gap (for example, Patent Document 3).

JP, 2017-102998, A Japanese Unexamined Patent Publication No. 2018-063762 JP, 2017-199602, A

However, the conventional method has a problem that the manufacturing cost is increased because the manufacturing process is complicated.

The present invention has been made in view of such a problem, and an object thereof is to provide a terminal, an electric wire with a terminal, and a method of manufacturing the same, which suppress an increase in processing cost and have excellent corrosion resistance.

In order to achieve the above-mentioned object, a first invention is an electric wire with a terminal, in which a coated conductor and a terminal are connected to each other, wherein the coated conductor includes a coating portion and a conductive wire exposed from a tip of the coating portion. The terminal has a terminal body and a crimp portion, and the crimp portion includes a conductor crimp portion to which the conductor wire is crimped, a cover crimp portion to which the covering portion is crimped, the conductor crimp portion, and An inter-barrel portion between the cover and the crimping portion, wherein the inter-barrel portion is formed with a convex portion projecting with respect to the conductive wire, and the convex portion forms an upper surface of the conductive wire and the inter-barrel portion. A wire is provided with a terminal in which a gap is formed, and at least a portion from the inter-barrel portion to the lead wire crimping portion where the lead wire is exposed is covered with a resin member.

In the axial cross section of the coated wire, it is preferable that the cross-sectional shape of the upper surface of the convex portion that is in contact with the conductive wire is formed in an arc shape.

The convex portion may be intermittently formed in the width direction of the inter-barrel portion.

In a cross section perpendicular to the axial direction of the coated conductor, a protrusion height of the convex portion at an end portion in the width direction of the inter-barrel portion may be lower than that in a central portion in the width direction.

In the axial cross section of the coated conductor, it is desirable that the distance from the end of the coated portion to the convex portion is 0.5 mm or more.

It is preferable that the protruding height of the convex portion is 0.8 times or more the thickness at the end portion of the covering portion at the portion contacting the inter-barrel portion.

According to the first aspect of the present invention, the convex portion projecting with respect to the conductor wire is formed in the inter-barrel portion, so that a large gap can be intentionally formed between the conductor wire and the upper surface of the inter-barrel portion. For this reason, the resin member is easily permeated, and the resin member can be more surely filled in the gap at the end of the covering portion.

Further, if the cross-sectional shape of the upper surface of the convex portion that contacts the conductive wire is formed in an arc shape, it is possible to prevent the conductive wire from being damaged by the convex portion.

Further, if the convex portions are formed intermittently in the width direction of the inter-barrel portion, the region of the gap can be made wider, so that the resin member can be more reliably permeated into the gap.

Further, by making the protruding height of the convex portion at the widthwise end of the inter-barrel portion lower than that at the widthwise central portion, it is possible to reliably secure the gap below the covered conductor. In addition, it is possible to prevent the width between the barrels from increasing.

Further, when the distance from the end of the covering portion to the convex portion is 0.5 mm or more, the gap can be more surely secured and the resin member can be permeated.

Further, if the protruding height of the convex portion is 0.8 times or more the thickness at the end portion of the covering portion, the effect of ensuring the gap can be obtained more reliably.

A second invention is a method of manufacturing an electric wire with a terminal, in which a coated conductor wire and a terminal are connected to each other, wherein the coated conductor wire comprises a coating portion and a conductive wire exposed from a tip of the coating portion, Has a terminal body and a crimping portion, and the crimping portion includes a conductor crimping portion to which the conductor wire is crimped, a covering crimping portion to which the covering portion is crimped, the conducting wire crimping portion, and the covering crimping portion. And an inter-barrel space between the barrels, the convex part projecting to the upper surface is formed in the inter-barrel space, the coated conductor wire is arranged in the crimping portion, and the conductor wire is provided in the conductor wire crimping portion. While crimping, the coating portion is crimped by the coating crimping portion, and a resin member is applied and cured at least on a portion where the conductor wire from the inter-barrel portion to the conductor wire crimping portion is exposed. It is a method of manufacturing an electric wire with a terminal.

According to the second aspect of the present invention, since the convex portion is formed in advance between the barrel portions of the terminal, it is possible to secure the gap under the conductor wire and facilitate the permeation of the resin member only by crimping with a conventional mold. You can

A third invention is a method of manufacturing an electric wire with a terminal, in which a coated conductor and a terminal are connected to each other, wherein the coated conductor includes a coating portion and a conductive wire exposed from a tip of the coating portion, Has a terminal body and a crimping portion, and the crimping portion includes a conductor crimping portion to which the conductor wire is crimped, a covering crimping portion to which the covering portion is crimped, the conducting wire crimping portion, and the covering crimping portion. And a barrel interspace between them, the coated conductor is arranged in the crimping portion, the conductor is crimped by the conductor crimping portion, the coating portion is crimped by the coating crimping portion, and the barrel is provided. A terminal is formed by forming a convex portion projecting to the conducting wire side in the interspace, and applying and curing a resin member at least on a portion where the conducting wire is exposed from the interbarrel portion to the conducting wire crimping portion. It is a method of manufacturing an attached electric wire.

According to the third invention, since the convex portion is formed in the inter-barrel portion of the terminal at the time of crimping, it is possible to secure the gap under the conducting wire and facilitate the penetration of the resin member only by crimping using the conventional terminal. You can

A fourth invention is an open barrel type terminal connected to a coated conductor, wherein the terminal has a terminal body and a crimp portion, and the crimp portion is a conductor to which the conductor of the coated conductor is crimped. A crimping part, a coated crimping part to which the covering part of the coated conductor is crimped, and a barrel interspace between the conducting wire crimping part and the coated crimping part. The terminal is characterized in that a protruding portion is formed.

According to the fourth aspect of the present invention, since the convex portion is formed in advance between the barrel portions of the terminal, it is possible to secure the gap under the conducting wire and facilitate the permeation of the resin member only by crimping with a conventional mold. You can

Advantageous Effects of Invention According to the present invention, it is possible to provide a terminal, an electric wire with a terminal, and a method for manufacturing the same that suppress an increase in processing cost and have excellent corrosion resistance.

The perspective view which shows the electric wire 10 with a terminal. Sectional drawing which shows the electric wire 10 with a terminal. 1A is an enlarged view of part A in FIG. 1, and FIG. 2B is a sectional view taken along line BB in FIG. The figure which shows the terminal 1 and the covering conductor wire 11 before crimping. 9A to 9D are views showing the cross-sectional shape of the convex portion 19. (A) is a top view of the electric wire 10 with a terminal, (b), (c) is a figure which shows the planar view shape of the convex part 19. As shown in FIG. (A), (b) is a figure which shows the arrangement|positioning of the convex part 19 of planar view. The partial cross section figure of the conventional electric wire with a terminal.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an electric wire 10 with a terminal, and FIG. 2 is a sectional view. Note that FIG. 1 is a perspective view of the resin member 17. The electric wire 10 with a terminal is configured by connecting the terminal 1 and the covered conductor wire 11.

The coated conductive wire 11 includes a conductive wire 13 made of aluminum or an aluminum alloy, and a coating portion 15 that covers the conductive wire 13. That is, the covered conductor wire 11 includes the covered portion 15 and the conductor wire 13 exposed from the tip thereof. The conducting wire 13 is, for example, a stranded wire in which a plurality of element wires are twisted together.

The terminal 1 is an open barrel type and is made of copper or a copper alloy. A covered conductor 11 is connected to the terminal 1. The terminal 1 is configured by connecting the terminal body 3 and the crimping portion 5 via the transition portion. The transition portion located between the crimp portion 5 and the terminal body 3 is open at the top.

The terminal body 3 is formed by forming a plate-shaped material having a predetermined shape into a tubular body having a rectangular cross section. The terminal body 3 has, inside, an elastic contact piece formed by folding a plate-shaped material into a rectangular cylinder. The terminal body 3 is connected by inserting a male terminal or the like from the front end portion. In the following description, the terminal body 3 is an example of a female terminal that allows insertion of an insertion tab (not shown) such as a male terminal, but in the present invention, the detailed shape of the terminal body 3 is described. Is not particularly limited. For example, an insertion tab for a male terminal may be provided instead of the female terminal body 3, or a bolt fastening portion such as a round terminal may be provided.

The crimp portion 5 is a portion to be crimped with the coated conductor wire 11, and has a barrel shape in which the cross-sectional shape perpendicular to the longitudinal direction of the terminal 1 is a substantially U-shape before crimping. The crimp portion 5 of the terminal 1 includes a conductor crimping portion 7 that crimps the conductor wire 13 exposed from the covering portion 15 to the tip side of the covered conductor wire 11, a covering crimping portion 9 that crimps the covering portion 15 of the covering conductor wire 11, and a conductor wire crimping portion. It consists of an inter-barrel part 8 between the part 7 and the covering crimp part 9.

A serration (not shown) is provided in the width direction (direction perpendicular to the longitudinal direction) on a part of the inner surface of the conductor crimping portion 7. By forming the serrations in this way, when the conductive wire 13 is pressure-bonded, the oxide film on the surface of the conductive wire 13 is easily destroyed, and the contact area with the conductive wire 13 can be increased.

The coating portion 15 is peeled off from the tip of the coated conductive wire 11, and the conductive wire 13 inside is exposed. The covering portion 15 of the covered conductor wire 11 is crimped by the covering crimp portion 9 of the terminal 1. Further, the conductor 13 exposed by peeling off the covering portion 15 is crimped by the conductor crimping portion 7. In the conductor crimping portion 7, the conductor 13 and the terminal 1 are electrically connected. The end face of the covering portion 15 is located in the inter-barrel portion 8 between the covering crimping portion 9 and the conductor crimping portion 7.

In the present invention, at least the conductive wire 13 exposed from the covering portion 15 is covered with the resin member 17. That is, at least a portion where the conductor wire 13 from the inter-barrel portion 8 to the conductor wire crimping portion 7 is exposed is covered with the resin member 17, and the conductor wire 13 is not exposed to the outside by the resin member 17.

3A is an enlarged view of a portion A of FIG. 2, and FIG. 3B is a sectional view taken along line BB of FIG. On the upper surface of the barrel-to-barrel portion 8, a convex portion 19 protruding from the conductor 13 is formed. The convex portion 19 can prevent the gap below the conducting wire 13 at the tip of the covering portion 15 from being crushed. That is, the convex portion 19 forms a gap between the conductive wire 13 and the upper surface of the inter-barrel portion 8. Therefore, a sufficient gap is secured below the conducting wire 13, and the resin member 17 can easily penetrate into the gap.

As shown in FIG. 3A, the protrusion height (D in the figure) of the convex portion 19 from the upper surface of the inter-barrel portion 8 is a portion contacting with the inter-barrel portion 8 (for example, the inter-barrel portion 8). It is desirable that the height is 0.8 times or more the thickness (C in the figure) at the end of the covering portion 15 in the approximate center in the width direction. If the height of the convex portion 19 is low, the effect of maintaining the gap becomes small. The protruding height of the convex portion 19 is preferably equal to or less than the plate thickness of the inter-barrel portion 8.

Further, in the axial cross section of the coated conductor wire 11, the distance from the end of the coated portion 15 to the convex portion 19 (almost the center of the convex portion 19) is preferably 0.5 mm or more. If the distance between the convex portion 19 and the end of the covering portion 15 becomes too short, the effect of forming a gap by the convex portion 19 becomes small. In addition, it is preferable that the convex portion 19 does not protrude to the conductor wire crimping portion 7.

In addition, as shown in FIG. 3B, in the cross section perpendicular to the axial direction of the coated conductor 11, the protrusion height of the convex portion 19 with respect to the inner surface of the inter-barrel portion 8 is set so as to follow the cross section of the substantially circular conductor 13. In addition, the width becomes lower toward the end in the width direction. That is, the protrusion height of the convex portion 19 at the widthwise end of the inter-barrel portion 8 becomes lower than that at the widthwise central portion (D in the drawing). By doing so, it is possible to prevent the inner width of the inter-barrel portion (the dimension between the convex portions 19) from being narrowed, and prevent the convex portion 19 from interfering with the arrangement of the electric wire. Can be prevented.

Next, a method of manufacturing the electric wire 10 with a terminal will be described. FIG. 4 is a perspective view showing the terminal 1 and the covered conductive wire 11 before crimping. As described above, the terminal 1 is an open barrel type terminal that is connected to the covered conductive wire 11. The terminal 1 has a terminal body 3 and a crimping section 5, and the crimping section 5 includes a conductor crimping section 7, a covering crimping section 9, and an inter-barrel portion 8 between the conducting wire crimping section 7 and the covering crimping section 9. It consists of and. In the inter-barrel portion 8, a convex portion 19 that protrudes upward in advance is formed.

First, as shown in the drawing, the coating portion 15 having a predetermined length at the tip of the coated conductive wire 11 is peeled off to expose the internal conductive wire 13. Next, the exposed conductor 13 is arranged at the position of the conductor crimping portion 7, and the covering portion 15 is arranged at the position of the covering crimping portion 9. That is, the end portion of the covering portion 15 is located in the inter-barrel portion 8. At this time, the conductive wire 13 is arranged on the convex portion 19 so that the end portion of the covering portion 15 is located closer to the coating crimping portion 9 side than the convex portion 19.

In this way, the coated conductor 11 is arranged on the crimp portion 5, the conductor 13 is crimped by the conductor crimp portion 7, and the covered portion 15 is crimped by the coated crimp portion 9. After that, the resin member 17 is applied and cured at least on the portion where the conductor wire 13 from the inter-barrel portion 8 to the conductor wire crimping portion 7 is exposed. From the above, the electric wire with a terminal 10 can be obtained.

In order to ensure that the resin member 17 penetrates into the gap between the conductors 13, the resin member 17 preferably has a viscosity of 600 mPa·s or less. Further, as the resin member 17, for example, a resin containing silicone acrylate, urethane acrylate, acrylic acrylate as a main component is applicable, and at least one or more ultraviolet curable, moisture curable or anaerobic curable resin. Is desirable.

In addition, in the above-mentioned example, although the terminal 1 in which the convex portion 19 is formed in advance is used, the present invention is not limited to this. For example, using the conventional terminal 1 having no convex portion 19, the covered conductor wire 11 is arranged in the crimp portion 5, the conductor wire 13 is crimped by the conductor wire crimp portion 7, and the cover portion 15 is crimped by the covered crimp portion 9 and In the inter-barrel portion 8, you may form the convex part 19 which protrudes to the conducting wire 13 side. That is, a convex shape corresponding to the convex portion 19 may be formed in the die used for the pressure bonding, and the convex portion 19 may be formed during the pressure bonding.

Further, as shown in FIG. 5A, in the axial cross section of the coated conductive wire 11, it is desirable that the cross-sectional shape of the upper surface of the convex portion 19 in contact with the conductive wire 13 is formed in an arc shape. Is not limited. For example, as shown in FIG. 5(b), the cross-sectional shape of the convex portion 19 may be substantially trapezoidal, as shown in FIG. 5(c), may be substantially rectangular, or as shown in FIG. 5(d). , It may be a substantially triangular shape. However, it is preferable that the shape of the upper surface of the convex portion 19 is an arc shape because it is possible to prevent the conductive wire 13 from being damaged.

Moreover, FIG. 6A is a plan view of the electric wire 10 with a terminal, and FIG. 6B is an enlarged view of an F portion of FIG. 6A. 6A and 6B, illustration of the resin member 17 is omitted, and in FIG. 6B, it is a perspective view of the conducting wire 13. The convex portion 19 is formed over the entire width of the inter-barrel portion 8. At this time, the convex portion 19 is formed straight in the width direction of the terminal 1.

On the other hand, the shape of the convex portion 19 in plan view may be curved. For example, as shown in FIG. 6C, the position of the convex portion 19 in the substantially central portion in the width direction of the terminal 1 (inter-barrel portion 8) overhangs toward the conductor crimping portion 7 side, and the inter-barrel portion 8 width direction. The position of the convex portion 19 in the vicinity of the end of the may be curved toward the coating pressure-bonding portion 9.

Further, the convex portion 19 may not be formed continuously in the width direction of the inter-barrel portion 8. For example, as shown in FIG. 7A, the convex portions 19 may be intermittently formed in the width direction of the inter-barrel portion 8. That is, the convex portion 19 may be divided into a plurality of parts in the width direction and arranged. Even in this case, it is assumed that the convex portion 19 is arranged over the entire width of the inter-barrel portion 8.

Further, in the cross section of the coated conductor 11 in the axial direction, when the convex portion 19 has a circular arc-shaped cross section (see FIG. 5A), as shown in FIG. Even in a cross section perpendicular to, the cross-sectional shape of the convex portion 19 may be an arc shape. That is, each convex portion 19 may have a substantially hemispherical shape.

As described above, according to the present embodiment, since the convex portion 19 is formed on the upper surface of the inter-barrel portion 8, it is possible to prevent the gap between the inter-barrel portion 8 below the conducting wire 13 from being collapsed. .. Therefore, since the size of the gap can be secured, the resin member 17 easily enters the gap, and the gap can be reliably filled with the resin member 17. Therefore, it is possible to secure high water shutoff.

Further, if the upper surface of the convex portion 19 has an arcuate shape, it is possible to prevent the conductive wire 13 from being damaged by the convex portion 19 when it comes into contact with the conductive wire 13.

In addition, since the convex portions 19 are arranged intermittently in the width direction of the inter-barrel portion 8, a gap can be formed between the convex portions 19 as well, so that the resin member 17 can easily penetrate into the gap.

Further, when the convex portions 19 are arranged in the entire width in the width direction of the inter-barrel portion 8, the width of the inter-barrel portion 8 is increased by lowering the protruding height of the convex portion 19 at the end portion in the width direction. Can be suppressed.

In addition, by disposing the convex portion 19 at a distance of 0.5 mm or more from the end portion of the covering portion 15, it is possible to efficiently prevent the gap below the conductive wire 13 from being crushed and maintain the gap.

If the height of the convex portion 19 is 0.8 times or more the thickness of the end portion of the covering portion 15, it is possible to efficiently prevent the gap below the conductive wire 13 from being crushed and maintain the gap.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical scope of the present invention is not affected by the above-described embodiments. It is obvious to those skilled in the art that various alterations or modifications can be conceived within the scope of the technical idea described in the claims, and those are naturally within the technical scope of the present invention. It is understood that it belongs.

1…………Terminal 3…………Terminal body 5…………Crimping part 7…………Conductor crimping part 8…………Barrel part 9…………Coating crimping part 10…………Wire with terminal 11…………Coating Conductor wire 13... Conductor wire 15... Cover portion 17... Resin member 19... Convex portion 103... Conductor wire 107... Conductor wire crimping portion 108... Inter-barrel portion 109... Covering crimp portion 111.....Coated conductor 115.....Coated part 117.....Resin member

Claims (9)

An electric wire with a terminal, in which a coated conductor and a terminal are connected,
The coated conductive wire includes a coated portion, and a conductive wire exposed from a tip of the coated portion,
The terminal has a terminal body and a crimp portion,
The crimping portion includes a conductor crimping portion to which the conductor wire is crimped, a covering crimping portion to which the covering portion is crimped, and an inter-barrel portion between the conducting wire crimping portion and the covering crimping portion,
In the inter-barrel portion, a convex portion that protrudes with respect to the conductive wire is formed, and the convex portion forms a gap between the conductive wire and the upper surface of the inter-barrel portion,
An electric wire with a terminal, characterized in that at least a portion of the conductor from the inter-barrel portion to the conductor crimping portion where the conductor is exposed is covered with a resin member. The electric wire with a terminal according to claim 1, wherein the cross-sectional shape of the upper surface of the convex portion that is in contact with the conductive wire is formed in an arc shape in the axial cross section of the coated conductive wire. The electric wire with a terminal according to claim 1 or 2, wherein the convex portion is intermittently formed in the width direction of the inter-barrel portion. In a cross section perpendicular to the axial direction of the coated conductor, a protrusion height of the convex portion at an end portion in the width direction of the inter-barrel portion is lower than a central portion in the width direction. The electric wire with a terminal according to any one of claims 1 to 3. The terminal according to any one of claims 1 to 4, wherein a distance from an end portion of the covering portion to the convex portion is 0.5 mm or more in an axial cross section of the covering conductor wire. With electric wire. The protrusion height of the convex portion is 0.8 times or more the thickness of the end portion of the covering portion at the portion contacting the inter-barrel portion, and the height is 0.8 times or more. An electric wire with a terminal according to any of the above. A method of manufacturing an electric wire with a terminal, wherein a coated conductor and a terminal are connected,
The coated conductive wire includes a coated portion, and a conductive wire exposed from a tip of the coated portion,
The terminal has a terminal body and a crimp portion,
The crimping portion includes a conductor crimping portion to which the conductor wire is crimped, a covering crimping portion to which the covering portion is crimped, and an inter-barrel portion between the conducting wire crimping portion and the covering crimping portion,
In the inter-barrel portion, a convex portion protruding to the upper surface is formed,
The coated conductor is arranged in the crimp portion, the conductor wire is crimped by the conductor crimp portion, and the coated portion is crimped by the coated crimp portion,
A method of manufacturing an electric wire with a terminal, characterized in that at least a portion from the inter-barrel portion to the wire crimping portion where the conductor is exposed is coated with a resin member and cured. A method of manufacturing an electric wire with a terminal, wherein a coated conductor and a terminal are connected,
The coated conductive wire includes a coated portion, and a conductive wire exposed from a tip of the coated portion,
The terminal has a terminal body and a crimp portion,
The crimping portion includes a conductor crimping portion to which the conductor wire is crimped, a covering crimping portion to which the covering portion is crimped, and an inter-barrel portion between the conducting wire crimping portion and the covering crimping portion,
The coated conductor is arranged in the crimping portion, the conductor is crimped by the conductor crimping portion, the coating portion is crimped by the coating crimping portion, and the convex portion protruding toward the conducting wire is provided between the barrels. To form
A method of manufacturing an electric wire with a terminal, characterized in that at least a portion from the inter-barrel portion to the wire crimping portion where the conductor is exposed is coated with a resin member and cured. An open barrel type terminal connected to a coated conductor,
The terminal has a terminal body and a crimp portion,
The crimping portion includes a conductor crimping portion to which the conductor wire of the coated conductor wire is crimped, a covering crimping portion to which the covering portion of the covering conductor wire is crimped, and an inter-barrel portion between the conducting wire crimping portion and the covering crimping portion. And,
The terminal is characterized in that a convex portion protruding upward is formed in the inter-barrel portion.

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