Electrical wire with terminals

Abstract

To provide a crimping terminal capable of suppressing the sagging of an anticorrosive material from a side wall of a middle portion.SOLUTION: A terminal-equipped wire 1 includes a wire 10 including a conductor 11 and an insulating sheath 12 covering the conductor 11, a conductor crimping part 22 for crimping the conductor 11, a cover crimping part 23 that includes a first crimping piece 28a and a second crimping piece 28b and crimps the insulating sheath 12 of the wire 10 by the first crimping piece 28a and the second crimping piece 28b, and a crimping terminal 20 including an intermediate part 25 connecting a conductor crimping part 22 and a sheath tightening part 23. An outer surface 28c of the first crimping piece 28a and an outer surface 28d of the second crimping piece 28b are in contact with each other, and an upper end of a side wall 30 of the intermediate part 25 is higher than an upper end of the conductor 11.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a wire with a terminal.

Background Art

[0002] An automotive wire harness includes a plurality of wires with terminals. The wire with a terminal includes a wire and a crimp terminal crimped to the wire, and the crimp terminal is housed in a terminal housing chamber of a connector housing. Conventionally, in order to suppress corrosion caused by the influence of water splashing, condensation, etc., it is known to apply an anti-corrosion material between the core wire (conductor) of the wire and the crimp terminal.

[0003] Patent Document 1 discloses a wire with a terminal including a crimp terminal having a coating crimping portion crimped to a coating, and an anti-corrosion material that integrally covers from the tip of the core wire to the side surface of the coating crimping portion and shields the core wire from the external space. The coating crimping portion has a bottom wall portion, a first caulking piece, and a second caulking piece that are each in close contact with the coating, and the first caulking piece is overlapped on the tip portion of the second caulking piece and crimped to the coating. The anti-corrosion material closes the gap surrounded by the tip surface of the second caulking piece, the inner surface of the first caulking piece, and the outer surface of the coating from the side of the core wire crimping portion. According to the wire with a terminal described in Patent Document 1, the intrusion of water through the coating crimping portion can be restricted.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, there are cases where wires smaller than the optimal size for the crimp terminal are used for crimping. However, in such cases, if the first crimping piece is crimped by overlapping it with the tip of the second crimping piece, there is a risk that the side wall of the intermediate section connecting the core wire crimping part and the insulation crimping part may be rolled inward together with the first or second crimping piece. However, if the side wall of the intermediate section bends inward along the wire, when liquid corrosion inhibitor is applied, the corrosion inhibitor may not be able to be held inside the side wall and may drip down the outer surface of the side wall.

[0006] This invention has been made in view of the problems of the prior art. The object of this invention is to provide a wire with a terminal that can prevent corrosion protection from dripping from the side wall of the intermediate section. [Means for solving the problem]

[0007] A terminal-equipped wire according to an embodiment of the present invention comprises a wire including a conductor and an insulating coating covering the conductor; a conductor crimping portion for crimping the conductor; a coating crimping portion including a first crimping piece and a second crimping piece, which crimps the insulating coating of the wire using the first and second crimping pieces; and a crimping terminal including an intermediate portion connecting the conductor crimping portion and the coating crimping portion, wherein the outer surfaces of the first crimping piece and the second crimping piece are in contact, and the upper end of the side wall of the intermediate portion is higher than the upper end of the conductor. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a wire with a terminal that can prevent corrosion protection from dripping from the side wall of the intermediate section. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing an example of a wire with terminals according to this embodiment. [Figure 2] This is a side view showing an example of a wire with terminals according to this embodiment. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 2. [Figure 4]This is a cross-sectional view taken along the line IV-IV in Figure 2. [Modes for carrying out the invention]

[0010] The terminal-equipped wire according to this embodiment will be described in detail below with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0011] The terminal-equipped wire 1 according to this embodiment will be described with reference to Figures 1 to 4. Figure 1 is a perspective view showing an example of the terminal-equipped wire 1 according to this embodiment. Figure 2 is a side view showing an example of the terminal-equipped wire 1 according to this embodiment. Figure 3 is a cross-sectional view taken along line III-III in Figure 2. Figure 4 is a cross-sectional view taken along line IV-IV in Figure 2. As shown in Figures 1 to 4, the terminal-equipped wire 1 according to this embodiment comprises a wire 10, a crimp terminal 20, and a corrosion-resistant 40.

[0012] The electric wire 10 includes a conductor 11 and an insulating sheath 12 that covers the outer circumference of the conductor 11. The conductor 11 includes a plurality of strands 13. At the end of the electric wire 10, the insulating sheath 12 is stripped off, leaving the conductor 11 exposed. The conductor 11 may include a bundled stranded wire formed by bundling a plurality of strands 13 together. Each conductor 11 may consist of only one stranded wire, or it may be a composite stranded wire formed by twisting together a plurality of bundled stranded wires.

[0013] The conductor 11 may mainly consist of copper or aluminum. The main component refers to the metal with the highest molar ratio among the metals contained in the conductor 11. The metal with the highest molar ratio may be present in a molar ratio of 50% or more, 60% or more, 70% or more, 80% or more, 90% or more, or 95% or more. The material of the conductor 11 may be, for example, copper, aluminum, or alloys containing these metals. From the viewpoint of weight reduction, it is preferable that the conductor 11 is formed of aluminum or an aluminum alloy.

[0014] As the material for the insulating coating 12, a thermoplastic resin that can ensure electrical insulation can be used. The insulating coating 12 may contain, for example, at least one of an olefin resin and polyvinyl chloride. The olefin resin may contain, for example, at least one resin selected from the group consisting of polyethylene (PE), polypropylene (PP), ethylene copolymer and propylene copolymer.

[0015] The crimp terminal 20 includes a terminal connection portion 21, a conductor crimping portion 22, a covering crimping portion 23, a first intermediate portion 24, and a second intermediate portion 25. The terminal connection portion 21 is provided at one end of the crimp terminal 20, and the conductor crimping portion 22 is provided at the other end of the crimp terminal 20. In this specification, the side of the crimp terminal 20 with the terminal connection portion 21 is referred to as the front side, and the side with the covering crimping portion 23 is referred to as the rear side.

[0016] The terminal connection portion 21 is provided on the longitudinal front of the crimp terminal 20 and is configured to connect to a mating terminal (not shown). By connecting the terminal connection portion 21 to the terminal connection portion of the mating terminal, the crimp terminal 20 is mechanically and electrically connected to the mating terminal. The terminal connection portion 21 has a box-like shape with a cylindrical space inside and contains a spring piece that engages with the mating terminal.

[0017] The conductor crimping section 22 is located behind the terminal connection section 21 in the longitudinal direction of the crimp terminal 20. Specifically, the conductor crimping section 22 is located between the terminal connection section 21 and the insulation crimping section 23 in the longitudinal direction of the crimp terminal 20. The conductor crimping section 22 crimps the exposed conductor 11 at the end of the electric wire 10. The conductor crimping section 22 crimps the conductor 11 of the electric wire 10 and is in direct contact with the conductor 11. The conductor crimping section 22 includes a base plate 26 on which to place the conductor 11, and a pair of conductor crimping pieces 27 connected to the base plate 26 for wrapping and crimping the conductor 11 radially. The pair of conductor crimping pieces 27 extend upward from the left and right edges of the base plate 26. The conductor crimping section 22 is formed in a U-shape in cross-section by a bottom plate 26 and a pair of conductor crimping pieces 27 before the electric wire 10 is crimped.

[0018] The covering crimping section 23 is located behind the conductor crimping section 22 in the longitudinal direction of the crimp terminal 20. The covering crimping section 23 crimps the insulating coating 12 provided at the end of the electric wire 10 and is in direct contact with the insulating coating 12. The covering crimping section 23 includes a base plate 26 on which the electric wire 10 is placed, and a pair of crimping pieces 28 connected to the base plate 26 for wrapping and crimping the electric wire 10 radially. The pair of crimping pieces 28 includes a first crimping piece 28a and a second crimping piece 28b. The first crimping piece 28a is connected to one end of the base plate 26, and the second crimping piece 28b is connected to the other end of the base plate 26. Before the electric wire 10 is crimped, the first crimping piece 28a and the second crimping piece 28b extend upward from the left and right edges of the base plate 26, and the base plate 26, the first crimping piece 28a, and the second crimping piece 28b form a U-shape or V-shape in cross-section. The covering crimping section 23 then crimps the insulating covering 12 of the electric wire 10 using the first crimping piece 28a and the second crimping piece 28b.

[0019] In the wire 1 with terminals, the outer surface 28c of the first clamping piece 28a and the outer surface 28d of the second clamping piece 28b are in contact. As a result, unlike the case of overlapping and clamping, the first clamping piece 28a and the second clamping piece 28b do not curve along the periphery of the wire 10. Therefore, when the first clamping piece 28a and the second clamping piece 28b are clamped, it is possible to suppress the side wall 30 of the second intermediate portion 25 from falling inward and curving along with the first clamping piece 28a and the second clamping piece 28b. Thereby, the height of the side wall 30 of the second intermediate portion 25 can be maintained as compared with before clamping the insulating coating 12 of the wire 10. Further, it is possible to suppress the boundary portion between the side wall 30 of the second intermediate portion 25 and the clamping piece 28 from being torn and causing shear cracking due to the first clamping piece 28a and the second clamping piece 28b falling too far inward from the side wall 30 of the second intermediate portion 25.

[0020] The covering clamping portion 23 may clamp the insulating coating 12 of the wire 10 such that the outer surface 28c of the first clamping piece 28a and the outer surface 28d of the second clamping piece 28b contact the insulating coating 12. Thereby, it is possible to suppress the tip surface 28e of the first clamping piece 28a and the tip surface 28f of the second clamping piece 28b from piercing the insulating coating 12 and destroying the insulating coating 12. Thereby, it is possible to suppress the conductor 11 from being exposed from the insulating coating 12 and water from entering between the wires 10 and causing corrosion. Note that the tip surface 28e of the first clamping piece 28a may contact the insulating coating 12 or may contact the inner surface 28g of the first clamping piece 28a. Similarly, the tip surface 28f of the second clamping piece 28b may contact the insulating coating 12 or may contact the inner surface 28h of the second clamping piece 28b.

[0021] The crimping of the conductor crimping portion 22 and the covering crimping portion 23 can manufacture the wire 1 with terminals by crimping the conductor 11 with an anvil and a crimper (not shown) at the conductor crimping portion 22 and crimping the wire 10 covered with the insulating coating 12 at the covering crimping portion 23.

[0022] The first intermediate portion 24 connects the terminal connection portion 21 and the conductor crimping portion 22 in the longitudinal direction of the crimp terminal 20. The first intermediate portion 24 includes a bottom plate 26 and a pair of side walls extending upward from the edges on both the left and right sides of the bottom plate 26. The side walls of the first intermediate portion 24 are configured to be lower than the side walls of the terminal connection portion 21 and the pair of conductor clamping pieces 27 of the conductor crimping portion 22. The first intermediate portion 24 is formed in a U-shaped or V-shaped cross-section by the bottom plate 26 and the pair of side walls.

[0023] The second intermediate portion 25 connects the conductor crimping portion 22 and the covering clamping portion 23 in the longitudinal direction of the crimp terminal 20. The second intermediate portion 25 includes a bottom plate 26 and a pair of side walls 30 extending upward from the edges on both the left and right sides of the bottom plate 26. The side walls of the second intermediate portion 25 are configured to be lower than the pair of conductor clamping pieces 27 of the conductor crimping portion 22 and the pair of clamping pieces 28 of the covering clamping portion 23. The second intermediate portion 25 is formed in a U-shaped or V-shaped cross-section by the bottom plate 26 and the pair of side walls 30.

[0024] In this embodiment, the crimp terminal 20 is formed by bending a single plate-like member. Therefore, the bottom plate 26 of the terminal connection portion 21 to the bottom plate 26 of the covering clamping portion 23 is continuously formed as a single common bottom plate 26. Also, the front and rear ends of the low-profile side walls of the first intermediate portion 24 are continuously formed with the lower half of the rear end of the side wall of the terminal connection portion 21 and the front end of each of the pair of conductor clamping pieces 27 of the conductor crimping portion 22, respectively. The front and rear ends of the low-profile side walls 3 of the second intermediate portion 25 are continuously formed with the lower half of the rear end of the pair of conductor clamping pieces 27 of the conductor crimping portion 22 and the front end of each of the pair of clamping pieces 28 of the covering clamping portion 23, respectively. <U+ <U+

[0025] <U+ The crimp terminal 20 is formed of a conductive material. The material forming the crimp terminal 20 may include at least one metal selected from the group consisting of, for example, copper, aluminum, iron, and magnesium. The surface of the crimp terminal 20 may or may not be plated.

[0026] The crimp terminal 20 may contain copper or aluminum as its main component. The main component refers to the metal with the highest molar ratio among the metals contained in the crimp terminal 20. The metal with the highest molar ratio in the crimp terminal 20 may be present in a molar ratio of 50% or more, 60% or more, 70% or more, 80% or more, 90% or more, or 95% or more. The material of the crimp terminal 20 may be, for example, copper, aluminum, or alloys containing these metals. From the viewpoint of conductivity, it is preferable that the crimp terminal 20 is formed of copper or a copper alloy.

[0027] The corrosion inhibitor 40 is provided at the point where the conductor 11 and the crimp terminal 20 come into contact. If moisture adheres between the conductor 11 of the electric wire 10 and the crimp terminal 20, corrosion is likely to occur. Therefore, by providing the corrosion inhibitor 40 at the contact point between the conductor 11 and the crimp terminal 20, it is possible to prevent moisture from adhering between the conductor 11 and the crimp terminal 20 of the electric wire 10 and suppress the occurrence of corrosion. In particular, when different types of metals are used for the conductor 11 and the crimp terminal 20, such as when the conductor 11 is aluminum or an aluminum alloy and the crimp terminal 20 is copper or a copper alloy, corrosion is more likely to occur. Therefore, by providing the corrosion inhibitor 40, the occurrence of corrosion can be suppressed.

[0028] As shown in Figure 1, the corrosion protection 40 is provided from the first intermediate section 24 to the covering crimp section 23. Specifically, it is provided in the first intermediate section 24, the conductor crimp section 22, the second intermediate section 25, and the covering crimp section 23.

[0029] In the first intermediate section 24, the area near the tip of the conductor 11 is exposed more than the conductor crimping section 22, and the corrosion-resistant material 40 covers the tip of the conductor 11.

[0030] In the conductor crimping section 22, the outer surface of the conductor 11 is covered by the conductor crimping section 22, and the corrosion inhibitor 40 covers the gap between the pair of conductor crimping pieces 27. This prevents moisture from entering the inside of the pair of conductor crimping pieces 27. In the conductor crimping section 22, the conductor 11 is surrounded by the conductor crimping section 22 and does not need to be in direct contact with the corrosion inhibitor 40.

[0031] In the second intermediate section 25, an exposed conductor 11 and a wire 10 in which the conductor 11 is covered with an insulating coating 12 are arranged, and the corrosion protection 40 covers the conductor 11 and the insulating coating 12. In the second intermediate section 25, there is a space enclosed by the conductor crimping section 22, the coating crimping section 23 and the side wall 30 of the second intermediate section 25, and the corrosion protection 40 covers the wire 10 from above within this space.

[0032] As can be seen from Figures 2 and 3, the upper end of the side wall 30 of the second intermediate section 25 is higher than the upper end of the conductor 11. Even if the upper end of the side wall 30 were lower than the upper end of the conductor 11, the corrosion inhibitor 40 could be held in the gap formed by the conductor 11 and the side wall 30, or the corrosion inhibitor 40 could be held on the conductor 11 by the surface tension of the corrosion inhibitor 40. However, by making the upper end of the side wall 30 higher than the upper end of the conductor 11, the side wall 30 of the second intermediate section 25 becomes a wall that blocks the corrosion inhibitor 40, so even if the corrosion inhibitor 40 is applied to the upper side of the conductor 11, the corrosion inhibitor 40 can be easily held by the side wall 30. Therefore, it is possible to prevent the corrosion inhibitor 40 from overflowing the side wall 30 and dripping onto the outer surface of the side wall 30.

[0033] The upper end of the side wall 30 of the second intermediate section 25 may be higher than the upper end of the electric wire 10 covered with the insulating coating 12. This allows the side wall 30 to easily hold the corrosion inhibitor 40 even when it is applied to the upper side of the electric wire 10. Therefore, it is possible to further suppress the corrosion inhibitor 40 from dripping over the side wall 30 onto the outer surface of the side wall 30.

[0034] As shown in Figure 3, the side wall 30 of the second intermediate section 25 extends upward. This increases the upper end of the side wall 30 compared to the case where the side wall 30 of the second intermediate section 25 is curved to surround the electric wire 10, thereby increasing the capacity of the protective corrosion 40 held above the electric wire 10. Therefore, it is possible to further suppress the protective corrosion 40 from sagging beyond the side wall 30 to the outer surface of the side wall 30. The side wall 30 of the second intermediate section 25 may also extend straight upward.

[0035] The height of the side wall 30 of the second intermediate section 25 is higher on the insulation crimping section 23 side than on the conductor crimping section 22 side. In the second intermediate section 25, the height of the electric wire 10 is higher on the insulation crimping section 23 side than on the conductor crimping section 22 side. Therefore, by making the height of the side wall 30 higher on the insulation crimping section 23 side than on the conductor crimping section 22 side, it is possible to further suppress the corrosion protection 40 from hanging over the side wall 30 and onto the outer surface of the side wall 30. Note that the height of the side wall 30 of the second intermediate section 25 may increase from the conductor crimping section 22 towards the insulation crimping section 23.

[0036] In the second intermediate section 25, the corrosion inhibitor 40 may be in contact with the front surface of the crimping piece 28. In such a terminal-equipped wire 1, even if the portion of the second intermediate section 25 covered by the insulating coating 12 is small due to manufacturing tolerances, the corrosion inhibitor 40 is applied between the conductor 11 of the wire 10 and the crimp terminal 20. Therefore, the occurrence of corrosion due to moisture adhesion can be further suppressed.

[0037] The corrosion inhibitor 40 may be provided to seal the first gap 28i, which is the gap surrounded by the inner surface 28g of the first crimping piece 28a, the tip surface 28e of the first crimping piece 28a, and the insulating coating 12. The corrosion inhibitor 40 may also be provided to seal the second gap 28j, which is the gap surrounded by the inner surface 28h of the second crimping piece 28b, the tip surface 28f of the second crimping piece 28b, and the insulating coating 12. The corrosion inhibitor 40 may also be provided to seal the third gap 28k, which is the gap surrounded by the outer surface 28c of the first crimping piece 28a, the outer surface 28d of the second crimping piece 28b, and the insulating coating 12. By applying the corrosion inhibitor 40 to seal the first gap 28i, the second gap 28j, and the third gap 28k, it is possible to suppress moisture from entering the second intermediate portion 25 through these gaps.

[0038] As shown in Figure 4, the tip of the first crimping piece 28a is rounded with its inner surface 28g facing inward, and a fourth gap 28l, which is a gap formed by the inner surface 28g of the first crimping piece 28a, is provided at the tip of the first crimping piece 28a. The tip surface 28e of the first crimping piece 28a may or may not be in contact with the inner surface 28g of the first crimping piece 28a. The tip of the second crimping piece 28b is rounded with its inner surface 28h facing inward, and a fifth gap 28m, which is a gap formed by the inner surface 28h of the second crimping piece 28b, is provided at the tip of the second crimping piece 28b. The tip surface 28f of the second crimping piece 28b may or may not be in contact with the inner surface 28h of the second crimping piece 28b.

[0039] The corrosion-resistant material 40 may be provided to block a portion of at least one of the fourth gap 28l and the fifth gap 28m. The corrosion-resistant material 40 may not block the fourth gap 28l, or it may block the entire fourth gap 28l. Similarly, the corrosion-resistant material 40 may not block the fifth gap 28m, or it may block the entire fifth gap 28m. The corrosion-resistant material 40 may or may not be provided on the upper surface of the contact portion where the outer surface 28c of the first crimping piece 28a and the outer surface 28d of the second crimping piece 28b meet.

[0040] The corrosion-resistant coating 40 can be formed by applying a liquid corrosion-resistant coating to the contact area between the conductor 11 and the crimp terminal 20, such as the contact area between the conductor 11 and the second intermediate portion 25, and then curing it. The corrosion-resistant coating 40 may be, for example, a resin obtained by curing at least one of a monomer and an oligomer. At least one of the monomer and the oligomer may be an ultraviolet-curable resin. An ultraviolet-curable resin can be cured instantly by irradiation with ultraviolet light.

[0041] As described above, the wire with terminal 1 according to this embodiment comprises a wire 10 and a crimp terminal 20. The wire 10 includes a conductor 11 and an insulating coating 12 covering the conductor 11. The crimp terminal 20 includes a conductor crimping portion 22 for crimping the conductor 11, a coating crimping portion 23 which includes a first crimping piece 28a and a second crimping piece 28b and crimps the insulating coating 12 of the wire 10 by the first crimping piece 28a and the second crimping piece 28b, and a second intermediate portion 25. The second intermediate portion 25 connects the conductor crimping portion 22 and the coating crimping portion 23. The outer surface 28c of the first crimping piece 28a and the outer surface 28d of the second crimping piece 28b are in contact. The upper end of the side wall 30 of the second intermediate portion 25 is higher than the upper end of the conductor 11.

[0042] In the terminal-equipped wire 1, the outer surface 28c of the first crimping piece 28a and the outer surface 28d of the second crimping piece 28b are in contact. Therefore, compared to the case where crimping is done with overlap, when the first crimping piece 28a and the second crimping piece 28b are crimped, it is possible to suppress the side wall 30 of the second intermediate section 25 from bending inward in conjunction with the first crimping piece 28a and the second crimping piece 28b. As a result, the height of the side wall 30 of the second intermediate section 25 can be maintained compared to before the insulating coating 12 of the wire 10 is crimped.

[0043] The upper end of the side wall 30 of the second intermediate section 25 is higher than the upper end of the conductor 11. As a result, the side wall 30 of the second intermediate section 25 acts as a barrier to stop the corrosion inhibitor 40, so even if the corrosion inhibitor 40 is applied to the upper side of the conductor 11, the corrosion inhibitor 40 can be easily held in place by the side wall 30. Therefore, it is possible to prevent the corrosion inhibitor 40 from overflowing the side wall 30 and dripping onto the outer surface of the side wall 30.

[0044] Therefore, according to the terminal-equipped wire 1 of this embodiment, it is possible to prevent the corrosion-resistant coating 40 from hanging down from the side wall 30 of the second intermediate portion 25. It is also possible to prevent corrosion-resistant coating from adhering to the side or back of the crimp terminal 20, which would affect its insertion into the housing.

[0045] Furthermore, because the outer surface 28c of the first crimping piece 28a and the outer surface 28d of the second crimping piece 28b are in contact, it is possible to prevent the first crimping piece 28a and the second crimping piece 28b from collapsing too far inward from the side wall 30 of the second intermediate section 25. As a result, it is possible to prevent the boundary between the side wall 30 of the second intermediate section 25 and the crimping pieces 28 from tearing and causing shear cracks.

[0046] The terminal-equipped wire 1 can be used in wire harnesses used in vehicles such as automobiles.

[0047] Although this embodiment has been described above, this embodiment is not limited to these, and various modifications are possible within the scope of the gist of this embodiment. [Explanation of Symbols]

[0048] 1. Wire with terminals 10 Electric wire 11 Conductors 12 Insulating coating 20 Crimp terminals 22 Conductor crimping section 23. Crimped coating section 25. Middle Section (Second Middle Section) 28 Clamping piece 30 side wall 40 Anticorrosion

Claims

1. A wire comprising a conductor and an insulating coating covering the conductor, A crimp terminal comprising: a conductor crimping section for crimping the conductor; a coating crimping section including a first crimping piece and a second crimping piece, which crimps the insulating coating of the electric wire using the first crimping piece and the second crimping piece; and an intermediate section connecting the conductor crimping section and the coating crimping section. Equipped with, The outer surface of the first crimping piece and the outer surface of the second crimping piece are in contact. The upper end of the side wall of the intermediate portion is higher than the upper end of the conductor. A wire with a terminal, in which the bottom plate of the intermediate section and the wire are in contact.

2. The terminal-equipped wire according to claim 1, further comprising a corrosion-resistant material provided at the portion where the conductor and the crimp terminal come into contact.

3. The terminal-equipped electric wire according to claim 1 or 2, wherein the side wall of the intermediate portion extends upward.

4. The terminal-equipped wire according to claim 1 or 2, wherein the coating crimping portion crimps the insulating coating of the wire such that the outer surfaces of the first crimping piece and the second crimping piece are in contact with the insulating coating.

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