JP2015133230A - Electric wire having mold part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply provide an electric wire having a mold part, capable of preventing a portion bitten into an insulating coating from being formed in the mold part without spoiling the flexibility of an insulated wire.SOLUTION: An electric wire 1 having a mold part comprises: an insulated wire 9 including a core wire 910 and a double coating 920 having a two-layer structure including a non-conductive inner side coating 921 covering the periphery of the core wire 910 and a non-conductive skin layer 922 formed to contact with the outer surface of the inner side coating 921 over the whole circumference and harder and thinner than the inner side coating 921; a terminal fitting 8; and a mold part 6 formed by insert molding.

Description

  The present invention relates to a molded part-attached electric wire having a molded part formed by insert molding at a connection part between an insulated wire and a terminal fitting.

  In a vehicle such as an automobile, a wire harness includes an electric wire with a terminal having an insulated wire that conducts electricity and a terminal fitting connected to an end of the insulated wire. The terminal fitting is generally a metal member mainly composed of copper.

  In an electric wire with a terminal mounted on a vehicle, a core wire exposed from an insulating coating portion of an insulated wire is connected to a connected portion which is a part of a terminal fitting by welding such as crimping or ultrasonic welding.

  By the way, in the electric wire with terminal, when liquid enters the connecting portion between the core wire of the insulated wire and the terminal fitting, the connecting portion is corroded. In particular, when the core wire of the insulated wire is an aluminum wire, corrosion due to dissimilar metal contact corrosion occurs.

  Then, in order to prevent the corrosion of the connection part of the core wire of an insulated wire and a terminal metal fitting, the electric wire with a terminal provided with the mold part as shown by patent document 1 is proposed, for example. Hereinafter, such an electric wire with a terminal is referred to as a molded portion electric wire.

  The mold part also serves to prevent liquid from entering the device by closing the gap between the insulated wire and the housing at the opening of the housing that houses the device to which the insulated wire is connected. The mold part is a synthetic resin member obtained by injection molding.

  The electric wire with a mold part shown by patent document 1 is equipped with the mold part which sealed the water stop area | region ranging from the connection part of the core wire of an insulated wire and a terminal metal fitting in an electric wire with a terminal to the edge part of an insulation coating. In this case, the connection portion between the insulated wire and the terminal fitting is water-stopped by the mold portion, and corrosion is prevented.

  The mold part of the electric wire with a mold part as shown in Patent Document 1 is made by insert molding using a mold die for molding the mold part and an injection device for injecting molten synthetic resin into the mold die. .

  The mold is generally composed of an upper mold and a lower mold. The upper mold and the lower mold are supported so that one or both of them can approach and be separated while facing each other. In the mold mold in which the upper mold and the lower mold are closest to each other, the first accommodation space in which the part other than the water stop area in the terminal fitting is accommodated, and the water stop area part of the electric wire with terminal are accommodated. And a third accommodation space in which a portion other than the water stop region at the end of the insulated wire is accommodated in that order.

  The injection device is a device for injecting molten synthetic resin into the second housing space of the mold. The molded part of the electric wire with mold part is that the synthetic resin injected into the second accommodating space is solidified in a state where the water stop region part of the electric wire with terminal is accommodated in the second accommodating space of the mold. It is formed by.

  Hereinafter, in the mold part of the electric wire with mold part, a part formed at the boundary part with the third accommodation space in the second accommodation space of the mold is referred to as a rear end.

  On the other hand, the electric wire with mold part shown in Patent Document 2 is insulated from the first mold part that seals the region extending from the connection portion between the core wire of the insulated wire and the terminal fitting in the electric wire with terminal to the coated end of the insulated wire. A second mold part interposed between the coated end part of the electric wire and the end part of the first mold part; The second mold part is an elastomer member.

JP 2002-315130 A International Publication No. 2011/019027

  By the way, when the conditions of the bending specification of an insulated wire are severe, in order to increase the flexibility of the insulated wire, it is necessary to employ an insulated wire having a softer and thinner insulation coating. For example, there are cases where it is necessary to bend an insulated wire with a particularly large curvature when attached to a vehicle, or when the frequency of bending deformation of the insulated wire is particularly high.

  On the other hand, when the insulation coating of the insulated wire is made of a material softer than a general coating material, when the mold part as described above is formed by insert molding, the inner edge of the rear end of the mold part is It tends to become a shape that bites into the insulation coating of insulated wires. When such an insulated wire with a mold part is used under conditions of strict bending specifications, the possibility that the biting part of the mold part damages the soft and thin insulation coating cannot be denied.

  The same applies to the inner edge portion of the rear end of the second mold portion in the electric wire with mold portion shown in Patent Document 2.

  Moreover, in manufacture of the electric wire with a mold part shown by patent document 2, it is necessary to mold twice about a 1st mold part and a 2nd mold part. In this case, after molding the second mold part, the electric wire with the mold part on which the first mold part is formed is once taken out from the mold for molding the second mold part and transferred to the mold for molding the first mold part. Such as time-consuming work. Performing such a laborious work is contrary to the demand for cost reduction and lead time reduction.

  An object of the present invention is to provide a molded part-equipped electric wire in which a part that bites into an insulating coating is difficult to be formed in the molded part without impairing the flexibility of the insulated electric wire.

  The electric wire with a mold part which concerns on a 1st aspect is equipped with an insulated wire, a terminal metal fitting, and a mold part. The insulated wire has a core wire and a double coating. The double coating is formed of a non-conductive inner coating covering the periphery of the core wire and a non-conductive outer skin layer that is formed in contact with the outer surface of the inner coating over the entire circumference and is harder and thinner than the inner coating. It has a two-layer structure. The said terminal metal fitting has the to-be-connected part to which the said core wire of the edge part of the said insulated wire was connected. The mold portion is formed by insert molding in a range from the connected portion of the terminal metal fitting to the end portion of the double coating of the insulated electric wire in the insulated wire and the terminal metal fitting.

  The electric wire with a mold part which concerns on a 2nd aspect is an aspect of the electric wire with a mold part which concerns on a 1st aspect. In the electric wire with a mold part according to the second aspect, the outer skin layer includes a thermosetting resin.

  In each of the above aspects, the electric wire with mold part includes an insulated wire having a core wire and a double coating. The double coating has a two-layer structure including a non-conductive inner coating covering the periphery of the core wire, and a non-conductive outer skin layer formed in contact with the outer surface of the inner coating over the entire circumference and harder than the inner coating. Have. In this case, the inner edge portion at the rear end of the mold portion is difficult to be formed into a shape that bites into the inner coating due to the presence of the hard outer skin layer formed on the outer surface of the inner coating.

  By the way, when the whole insulation coating of an insulated wire is hard, harmful effects, such as an insulated wire being hard to bend or being not bendable with a big curvature, will arise. Such an insulated wire is not suitable for an insulated wire used under severe bending conditions.

  On the other hand, in each of the above embodiments, the hard and thin skin layer has a shape in which the mold part bites into the insulating coating (double coating) locally without impairing the flexibility of the entire double coating including the softer inner coating. Prevents molding. Therefore, in each of the above embodiments, it is possible to provide an electric wire with a molded part in which a portion that bites into the insulating coating, particularly the inner coating, is hard to be formed in the molded part without impairing the flexibility of the insulated electric wire.

  Moreover, in the manufacturing process of the electric wire with a mold part in each of the above aspects, it is not necessary to perform molding a plurality of times. In this case, it is not necessary to perform a time-consuming work of transferring from one mold to another.

  Therefore, according to each of the above aspects, it is possible to simply provide the molded part-attached electric wire in which the part that bites into the insulating coating is not easily formed in the molded part.

  Accordingly, for example, even when an insulated electric wire having a soft and relatively thin inner coating is used under severe bending conditions such as being bent with a large curvature near the mold portion, the durability of the electric wire with a mold portion is improved. be able to.

  Moreover, in said 2nd aspect, the outer skin layer in the double coating | cover of an insulated wire contains a thermosetting resin. In this case, the outer skin layer is not softened by heat received from the mold resin during insert molding of the mold part. As a result, the degree to which the mold part bites into the insulating coating can be more reliably reduced.

It is a top view of the principal part of the electric wire 1 with a mold part which concerns on 1st Embodiment. It is a longitudinal cross-sectional view of the principal part of the electric wire 1 with a mold part. It is a front sectional view of an insulated wire in electric wire 1 with a mold part. It is sectional drawing of the metal mold | die used for manufacture of the electric wire 1 with a mold part. It is sectional drawing showing the one part process in the manufacturing process of the electric wire 1 with a mold part. It is a top view of electric wire 1X with a mold part concerning a 2nd embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention.

<First Embodiment>
First, the configuration of the molded part-attached electric wire 1 according to the first embodiment will be described with reference to FIGS. The molded part-attached electric wire 1 includes an insulated wire 9, a terminal fitting 8, and a molded part 6. The electric wire 1 with a molded part is a part of a wire harness mounted on a vehicle such as an automobile.

  FIG. 1 is a plan view of an end portion of the molded part-attached electric wire 1. FIG. 2 is a cross-sectional view of the molded part-attached electric wire 1 in the II-II plane of FIG. 1. FIG. 3 is a cross-sectional view of the molded part-attached electric wire 1 in the III-III plane of FIG. 2.

<Insulated wire>
As shown in FIGS. 1 to 3, the insulated wire 9 to which the terminal fitting 8 is attached has a core wire 910 that is a long conductor, and a double coating 920 that covers the periphery of the core wire 910.

  The core wire 910 is usually a stranded wire in which a plurality of strands made of thin conductors are twisted together. However, it is also conceivable that the core wire 910 is a single wire. The core wire 910 of the insulated wire 9 is, for example, a metal wire material mainly composed of copper or aluminum.

  The double coating 920 has a two-layer structure including a non-conductive inner coating 921 and a non-conductive skin layer 922 that is harder and thinner than the inner coating 921. That is, the double coating 920 is an insulating coating having a two-layer structure.

  The double coating 920 in the insulated wire 9 is made, for example, by extruding two different synthetic resin materials on two layers of an inner layer and an outer layer.

  The inner coating 921 is formed in contact with the outer surface of the core wire 910 over the entire circumference. The inner coating 921 of the insulated wire 9 is a synthetic resin member whose main component is, for example, polyethylene, vinyl chloride or polyamide-based nylon.

  The outer skin layer 922 is formed in contact with the outer surface of the inner coating 921 over the entire circumference. For example, the outer skin layer 922 of the insulated wire 9 is a layer of synthetic resin including engineering plastics such as epoxy resin and phenol resin, thermosetting resin, or the like. The outer skin layer 922 is formed with a thickness smaller than the thickness of the inner coating 921. For example, the outer skin layer 922 is formed with a thickness of about one-quarter to one-fourth of the inner coating 921.

  The end portion of the insulated wire 9 to which the terminal fitting 8 is attached is in a state in which the double coating 920 is peeled off from the periphery of the core wire 910 of a certain length in advance, that is, the core wire 910 of a certain length is double coated. It is processed into a state extending from 920.

  Hereinafter, the core wire 910 extending from the end of the double coating 920 at the end portion of the insulated wire 9 is referred to as a bare wire portion 91. Further, a portion of the end portion of the double covering 920 of the insulated wire 9 in a certain range (a range of a length of several millimeters to a few dozen millimeters) is referred to as a covering end portion 92.

<Terminal fitting>
As shown in FIGS. 1 and 2, the terminal fitting 8 has a connected portion 82. In the present embodiment, the terminal fitting 8 further has a contact portion 81.

  The connected portion 82 is a portion to which the bare wire portion 91 at the end of the insulated wire 9 is connected.

  In the present embodiment, the connected portion 82 includes a bottom plate portion 821 and two core wire caulking portions 822. That is, this embodiment is an example in the case where the connected portion 82 is connected to the insulated wire 9 by crimping.

  The connected portion 82 is a plate-like portion that is bent before being crimped to the insulated wire 9, and forms a groove into which the bare wire portion 91 of the insulated wire 9 is inserted.

  The bottom plate portion 821 is a portion that supports the bare wire portion 91 in the insulated wire 9 to which the terminal fitting 8 is attached from one side.

  The two core wire caulking portions 822 are portions formed so as to rise from the bottom plate portion 821 to both sides of the bare wire portion 91. In addition, the to-be-connected part 82 in this embodiment is a butting type in which the two core wire crimping parts 822 do not overlap. However, it is also conceivable that the connected portion 82 is an overlapped type in which two core wire caulking portions 822 are overlapped and caulked to the bare wire portion 91, or a closed barrel type formed in a cylindrical shape.

  In the molded part-attached electric wire 1, the insulated electric wire 9 is inserted inside a groove formed by the connected part 82. Then, the upright two core wire caulking portions 822 are bent along the periphery of the bare wire portion 91, bent in a direction facing the bottom plate portion 821, and caulked to the bare wire portion 91. As a result, the connected portion 82 is crimped to the bare wire portion 91.

  Hereinafter, the insulated wire 9 in which the connected portion 82 of the terminal fitting 8 is connected to the bare wire portion 91 is referred to as a terminal-attached wire 90.

  The contact part 81 is a part connectable with other members. In the present embodiment, for example, a connection hole 810 through which a screw for fixing a terminal fitting 8 such as a terminal fixing base to a connection partner is passed is formed in the contact portion 81. The contact portion 81 is continuous with the bottom plate portion 821.

  The terminal fitting 8 is obtained by bending a metal plate material. Moreover, the metal plate material which comprises the terminal metal fitting 8 is obtained by the punching process with respect to the plate-shaped metal base material in which plating was formed. Accordingly, the metal plate constituting the terminal fitting 8 is constituted by a base material and plating formed on the surface of the base material.

  For example, the base material of the terminal fitting 8 is a member made of a metal material whose main component is copper, such as copper or a copper alloy. In this case, the entire terminal fitting 8 including plating is made of a metal material mainly composed of copper. On the other hand, the plating is a member made of a metal material mainly composed of tin, such as tin (Sn) or tin alloy in which silver (Ag), copper (Cu), bismuth (Bi) or the like is added to tin. Silver (Ag) plating or nickel (Ni) plating is also conceivable.

<Mold part>
The mold part 6 shown in FIGS. 1 and 2 is a part formed by insert molding in the range from the connected part 82 of the terminal fitting 8 to the covering end 92 of the insulated wire 9 in the insulated wire 9 and the terminal fitting 8. . In the present embodiment, the molded portion 6 is formed in a range from the portion between the contact portion 81 of the terminal fitting 8 and the connected portion 82 of the insulated wire 9 and the terminal fitting 8 to the covered end portion 92 of the insulated wire 9. ing.

  Hereinafter, with respect to the mold part 6, the end on the contact part 81 side of the terminal fitting 8 is referred to as the front end, and the opposite end is referred to as the rear end.

  In the electric wire 1 with a molded part, the molded part 6 extends over the entire circumferential direction with respect to the outer surface of the part between the contact part 81 and the connected part 82 in the terminal fitting 8 on the inner surface of the tip part, for example. Close.

  Moreover, in the electric wire 1 with a molded portion, the molded portion 6 is in close contact with the outer peripheral surface of the covered end portion 92 of the insulated wire 9 over the entire circumferential direction, for example, on the inner surface of the rear end portion. Therefore, liquid can be prevented from entering the connecting portion between the bare wire portion 91 of the insulated wire 9 and the connected portion 82 of the terminal fitting 8.

  The mold part 6 is a synthetic resin member. The synthetic resin constituting the mold part 6 is, for example, a PPS (polyphenylene sulfide) resin, a PPA (polyphthalamide) resin, an LCP resin (liquid crystal polymer), a phenol-based, polyester-based, polyamide-based, or epoxy-based resin. .

  The molding process of the mold part 6 will be described later.

<Manufacturing process of electric wire with mold part>
Next, the process for manufacturing the molded part-attached electric wire 1 will be described with reference to FIGS. FIG. 4 is a cross-sectional view of a mold 5 used for insert molding of the mold part 6 in the production of the electric wire 1 with mold part. FIG. 5 is a diagram illustrating a part of the manufacturing process of the molded part-attached electric wire 1, and the mold 5, the insulated electric wire 9, and the terminal at the time of insert molding of the molded part 6 in the manufacturing process of the molded part-attached electric wire 1. FIG. 6 is a cross-sectional view of a metal fitting 8.

<Manufacturing process of electric wire with mold: Mold>
First, the metal mold | die 5 used for manufacture of the electric wire 1 with a mold part in this embodiment is demonstrated. The mold 5 is an example of a mold member used in manufacturing the electric wire 1 with a mold part. The mold 5 includes an upper mold 51 and a lower mold 52 as shown in FIG. The upper mold 51 and the lower mold 52 are supported by a support mechanism (not shown) so that one or both of them can approach and be separated from each other.

  The mold 5 is formed with a space that is filled with a synthetic resin for molding the mold portion 6 and a space that is not filled with the synthetic resin. In the present embodiment, the mold 5 in a state where the upper mold 51 and the lower mold 52 are closest to each other has a first accommodation space 501, a second accommodation space 502, and a third accommodation space in which the terminal-attached electric wire 90 is accommodated. A storage space 503 is formed. The second accommodation space 502 is a space filled with a synthetic resin for molding the mold part 6. The first accommodation space 501 and the third accommodation space 503 are spaces that are not filled with the synthetic resin for molding the mold part 6.

  As shown in FIG. 5, the upper mold 51 is formed with a first molding part 511, a second molding part 512, and a third molding part 513. Similarly, the lower mold 52 is also formed with a first molding part 521, a second molding part 522, and a third molding part 523.

  In a state where the upper mold 51 and the lower mold 52 are closest, the space surrounded by the first molding part 511 in the upper mold 51 and the first molding part 521 in the lower mold 52 is a terminal of the electric wire 90 with terminal. A part of the metal fitting 8 other than the area where the mold part 6 is molded, that is, a part from the part between the contact part 81 and the connected part 82 of the terminal metal part 8 to the tip part of the contact part 81 is accommodated. One accommodation space 501 is formed.

  Further, in a state where the upper mold 51 and the lower mold 52 are closest to each other, a space surrounded by the second molded portion 512 in the upper mold 51 and the second molded portion 522 in the lower mold 52 is a wire 90 with a terminal. A second accommodation space 502 is formed in which a portion corresponding to a range from the portion between the contact portion 81 of the terminal fitting 8 and the connected portion 82 to the covering end portion 92 is accommodated.

  Further, in a state where the upper mold 51 and the lower mold 52 are closest to each other, the space surrounded by the third molded portion 513 in the upper mold 51 and the third molded portion 523 in the lower mold 52 is the electric wire 90 with terminal. A third accommodation space 503 is formed in which a part of the insulated wire 9 other than the covering end 92 is accommodated.

<Manufacturing process of electric wire with mold part: Mold part forming process>
Next, the molding process of the mold part 6 in the electric wire 1 with a mold part will be described with reference to FIG.

  The molding process of the mold part 6 is performed after the connection process (crimping process) of the terminal fitting 8 to the insulated wire 9 is performed.

  In the molding process of the mold part 6, for example, after the terminal-attached electric wire 90 is set in the lower mold 52, the upper mold 51 is brought close to the lower mold 52 in a state of facing the lower mold 52. Thereby, the electric wire 90 with a terminal is accommodated in the 1st accommodation space 501, the 2nd accommodation space 502, and the 3rd accommodation space 503 which the metal mold | die 5 forms.

  In the state where the terminal-attached electric wire 90 is accommodated in the first accommodation space 501, the second accommodation space 502, and the third accommodation space 503 of the mold 5, the synthetic resin melted by an unillustrated injection device is the second accommodation space. Injected into 502.

  When the synthetic resin injected into the second housing space 502 is solidified, the portion of the terminal-equipped electric wire 90 that is accommodated in the second housing space 502 of the mold 5, that is, the contact point of the terminal fitting 8 in the terminal-equipped electric wire 90. The molded part 6 is formed without a gap around the part corresponding to the range from the part between the part 81 and the connected part 82 to the covered end part 92 of the insulated wire 9.

  The outer skin layer 922 of the insulated wire 9 prevents the synthetic resin melted at the boundary portion between the second housing space 502 and the third housing space 503 from biting into the double coating 920 of the insulated wire 9 when the mold portion 6 is molded. . More specifically, due to the presence of the hard outer skin layer 922, the mold part 6 is less likely to be formed into a shape that bites into the inner coating 921 of the insulated wire 9.

  Further, when the outer skin layer 922 includes a thermosetting resin, even when the temperature of the outer skin layer 922 is increased during the molding of the mold portion 6, the outer skin layer 922 is harder than the inner coating 921, that is, the pressure of the fluid resin It is possible to make it difficult for local bites to occur.

<Effect>
In this embodiment, the molded part-attached electric wire 1 is formed so as to be in contact with the core wire 910, the non-conductive inner coating 921 that covers the periphery of the core wire 910, and the outer surface of the inner coating 921 over the entire circumference. And a double coating 920 having a two-layer structure including a harder non-conductive outer skin layer 922. In this case, the inner edge portion at the rear end of the mold portion 6 is difficult to be formed into a shape that bites into the inner coating 921 due to the presence of the hard outer skin layer 922 formed on the outer surface of the inner coating 921.

  Further, in the present embodiment, the mold portion 6 is locally covered with the inner coating 921 in the double coating 920 without impairing the flexibility of the entire double coating 920 in which the hard and thin skin layer 922 includes the more flexible inner coating 921. Prevents it from being molded into a shape that bites into. Therefore, in this embodiment, it is possible to provide the molded portion-attached electric wire 1 in which the portion that bites into the inner coating 921 in the double coating 920 is not easily formed in the molded portion 6 without impairing the flexibility of the insulated wire 9. Become.

  Moreover, in the manufacturing process of the electric wire 1 with a mold part in this embodiment, it is not necessary to perform mold forming a plurality of times. In this case, it is not necessary to perform a time-consuming work of transferring from one mold to another.

  Therefore, according to the present embodiment, it is possible to easily provide the molded part-attached electric wire 1 in which the part that bites into the inner coating 921 of the double coating 920 is less likely to be formed in the molded part 6.

  Therefore, for example, even when the insulated wire 9 having the soft and relatively thin inner coating 921 is used under severe bending conditions such as being bent with a large curvature in the vicinity of the mold portion 6, the durability of the wire with mold portion 1 can be improved. Can be improved.

  Moreover, in this embodiment, the outer skin layer 922 in the double coating 920 of the insulated wire 9 includes a thermosetting resin. In this case, the outer skin layer 922 is not softened by heat received from the mold resin during the insert molding of the mold part 6. As a result, the degree to which the mold part 6 bites into the double coating 920, particularly the inner coating 921, can be more reliably mitigated.

Second Embodiment
Next, the configuration of the molded part-attached electric wire 1X according to the second embodiment will be described with reference to FIG. FIG. 6 is a plan view of an end portion of the molded part-attached electric wire 1X according to the second embodiment. The wire with mold part 1X is different from the wire with mold part 1 in that it has a plurality of electric wires with terminals 90. In FIG. 6, the same components as those shown in FIGS. 1 to 5 are given the same reference numerals.

  Hereinafter, the difference in the molded part-attached electric wire 1X from the molded part-attached electric wire 1 will be described.

  As FIG. 6 shows, the electric wire 1X with a mold part is provided with the some electric wire 90 with a terminal. This embodiment is an example of the case where the molded portion-attached electric wire 1 </ b> X includes three terminal-attached electric wires 90.

  The electric wire 1X with a mold part is manufactured through the same manufacturing process as the electric wire 1 with a mold part, for example. In the molded portion-attached electric wire 1X, the mold portion 6 collectively covers the range from the connected portion 82 of the terminal fitting 8 to the covered end portion 92 of the insulated wire 9 in each of the plurality of electric wires 90 with terminals arranged in parallel. . In the present embodiment, the mold portion 6 collects the range from the portion between the contact portion 81 of the terminal fitting 8 and the connected portion 82 of the insulated wire 9 and the terminal fitting 8 to the covered end portion 92 of the insulated wire 9. And covering.

<Application example>
The connected portion 82 of the terminal fitting 8 may further have a coated crimping portion that is crimped to the double coating 920 of the insulated wire 9. Moreover, the terminal metal fitting 8 may be connected to the insulated wire 9 by welding such as ultrasonic welding.

  Further, the first housing space 501 is not formed in the mold 5, and the portion from the portion between the contact portion 81 and the connected portion 82 in the terminal fitting 8 of the terminal-attached electric wire 90 to the tip portion of the contact portion 81. It is also conceivable that is taken out of the mold 5.

  In addition, the electric wire with a mold part according to the present invention can be freely combined with each of the above-described embodiments and application examples within the scope of the invention described in each claim, or each of the embodiments and application examples as appropriate. It is also possible to configure by deforming or omitting a part.

DESCRIPTION OF SYMBOLS 1 Electric wire with a mold part 1X Electric wire with a mold part 5 Mold 501 1st accommodation space 502 2nd accommodation space 503 3rd accommodation space 51 Upper mold 511 1st shaping | molding part 512 2nd shaping | molding part 513 3rd shaping | molding part 52 Lower metal Mold 521 First molding part 522 Second molding part 523 Third molding part 6 Mold part 8 Terminal fitting 81 Contact part 810 Connection hole 82 Connected part 821 Bottom plate part 822 Core wire caulking part 9 Insulated wire 90 Terminal wire 91 Bare wire part 910 core wire 92 covering end 920 double covering 921 inner covering 922 outer skin layer

Claims (2)

Two layers including a core wire, a non-conductive inner coating covering the periphery of the core wire, and a non-conductive outer skin layer formed in contact with the outer surface of the inner coating over the entire circumference and harder and thinner than the inner coating A double coating having a structure; and an insulated wire having a structure;
A terminal fitting having a connected portion to which the core wire of the end portion of the insulated wire is connected;
An electric wire with a mold part, comprising: a molded part formed by insert molding in a range from the connected part of the terminal metal fitting to the end of the double coating of the insulated electric wire in the insulated wire and the terminal metal fitting. It is an electric wire with a mold part according to claim 1,
The electric wire with a mold part, wherein the outer skin layer contains a thermosetting resin.

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