JP2014120283A - Wire with terminal - Google Patents

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Publication number
JP2014120283A
JP2014120283A JP2012273746A JP2012273746A JP2014120283A JP 2014120283 A JP2014120283 A JP 2014120283A JP 2012273746 A JP2012273746 A JP 2012273746A JP 2012273746 A JP2012273746 A JP 2012273746A JP 2014120283 A JP2014120283 A JP 2014120283A
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terminal
viscosity
anticorrosion
wire
electric wire
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Inventor
Yutaka Takada
裕 高田
Tetsuya Nakamura
哲也 中村
Nariyuki Tanaka
成幸 田中
Hironobu Yositomo
宏伸 良知
Naoyuki Oshiumi
直之 鴛海
Takayuki Terauchi
孝幸 寺内
Yukiyasu Sakamoto
幸康 坂本
Kosuke Hasui
宏介 蓮井
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Priority to JP2012273746A priority Critical patent/JP2014120283A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a wire with a terminal in which the connection part of the terminal and the core wire is covered with a corrosion-proof material exhibiting excellent anti-corrosion performance.SOLUTION: A wire 1 with a terminal is produced by coating the outside of a part of the terminal connected to the core wire with a first corrosion preventive material 31 having a viscosity of 50-10000 mPa s, and then coating the outside of the first corrosion preventive material 31 with a second corrosion preventive material 32 having a viscosity of 10000-50000 mPa s, higher than that of the first corrosion preventive material 31. Preferably, the thickness of a corrosion preventive material 30 formed by the first corrosion preventive material 31 and second corrosion preventive material 32 thus applied is 1.0-2.5 mm.

Description

本発明は、電線の芯線と端子の接続部分を覆う防食材料が塗布された端子付電線に関する。   The present invention relates to a terminal-attached electric wire coated with a corrosion-proof material that covers a connecting portion between a core wire and a terminal of the electric wire.

下記特許文献１などに記載されるように、端子付電線における芯線と端子の接続部分の腐食を防止するため、当該接続部分を覆う防食材料が塗布されることがある。特に、このような防食材料の塗布は、アルミニウム製の芯線に銅製の端子がかしめられたものなど、異種金属の接触部分が存在する端子付電線におけるいわゆる「異種金属腐食」の防止に効果的である。   As described in Patent Document 1 below, an anticorrosive material that covers the connection portion may be applied to prevent corrosion of the connection portion between the core wire and the terminal in the electric wire with terminal. In particular, the application of such an anticorrosive material is effective in preventing so-called "foreign metal corrosion" in a terminal-attached electric wire in which a contact portion of a different metal exists, such as one in which a copper terminal is caulked on an aluminum core wire. is there.

特開２０１２−５９５９５号公報JP 2012-59595 A

上記防食材料は、端子に密接するように塗布しないと、隙間から水が進入してしまい十分な防食作用が得られない。例えば端子に対する濡れ広がりが十分でない高粘度の防食材料を用いると、隙間からの水の進入を許してしまう。また、高粘度の防食材料は取り扱いも困難である。一方、防食材料の粘度が低すぎると水の進入を阻止する膜としての十分な厚みが確保できない。   If the anticorrosive material is not applied so as to be in close contact with the terminal, water will enter from the gap and a sufficient anticorrosive action cannot be obtained. For example, if a high-viscosity anticorrosive material with insufficient wetting and spreading to the terminal is used, water can enter from the gap. Moreover, the high-viscosity anticorrosive material is difficult to handle. On the other hand, when the viscosity of the anticorrosive material is too low, a sufficient thickness as a film that prevents water from entering cannot be secured.

上記実情に鑑み、本発明は、端子と芯線の接続部分が優れた防食性能を発揮する防食材に覆われた端子付電線を提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide a terminal-attached electric wire covered with an anticorrosive material that exhibits excellent anticorrosion performance at a connection portion between a terminal and a core wire.

本発明にかかる端子付電線は、電線およびこの電線の芯線に接続された部分を有する端子を備える端子付電線であって、前記端子における前記芯線に接続された部分の外側に粘度が５０〜１００００ｍＰａ・ｓである第一防食材料を塗布した後、この第一防食材料の外側に第一防食材料よりも高粘度である粘度が１００００〜５００００ｍＰａ・ｓである第二防食材料を塗布してなることを特徴とする。   The electric wire with a terminal concerning this invention is an electric wire with a terminal provided with the terminal which has an electric wire and the part connected to the core wire of this electric wire, Comprising: A viscosity is 50-10000 mPas outside the part connected to the said core wire in the said terminal. After applying the first anticorrosive material that is s, the second anticorrosive material having a viscosity of 10000 to 50000 mPa · s higher than the first anticorrosive material is applied to the outside of the first anticorrosive material. It is characterized by.

塗布された前記第一防食材料および前記第二防食材料によって形成された防食材の厚みが１．０〜２．５ｍｍであるとよい。   The thickness of the anticorrosion material formed by the applied first anticorrosion material and the second anticorrosion material is preferably 1.0 to 2.5 mm.

前記第一防食材料および前記第二防食材料はともに常温で液体である反応硬化型樹脂であるとよい。   Both the first anticorrosion material and the second anticorrosion material may be a reaction curable resin that is liquid at room temperature.

本発明にかかる端子付電線によれば、相対的に低粘度の第一防食材料が芯線と端子の接続部分に濡れ広がることにより当該接続部分に密着する。また、相対的に高粘度の第二防食材料は防食材料として十分な厚みを確保するために機能する。このように、内側に相対的に低粘度の第一防食材料を塗布し、その外側に相対的に高粘度の第二防食材料を塗布することにより、芯線と端子の接続部分に密着し、かつ十分な厚みをもつ防食材に端子と芯線の接続部分が覆われる。つまり、相対的に低粘度の第一防食材料と相対的に高粘度の第二防食材料によって防食に必要な機能を分担させることで、優れた防食機能をもつ端子付電線となる。   According to the terminal-attached electric wire according to the present invention, the relatively low-viscosity first anticorrosive material wets and spreads on the connecting portion between the core wire and the terminal, thereby closely contacting the connecting portion. The relatively high viscosity second anticorrosion material functions to ensure a sufficient thickness as the anticorrosion material. Thus, by applying a relatively low-viscosity first anticorrosion material on the inside, and applying a relatively high-viscosity second anticorrosion material on the outside, the core wire and the terminal are in close contact with each other, and The connection portion between the terminal and the core wire is covered with an anticorrosive material having a sufficient thickness. That is, the electric wire with a terminal having an excellent anticorrosion function is obtained by sharing the function necessary for anticorrosion by the relatively low viscosity first anticorrosion material and the relatively high viscosity second anticorrosion material.

第一防食材料および第二防食材料がともに常温で液体である反応硬化型樹脂であれば、塗布作業が容易である。   If the first anticorrosion material and the second anticorrosion material are both reaction curable resins that are liquid at room temperature, the coating operation is easy.

本発明の一実施形態にかかる端子付電線の外観図である。It is an external view of the electric wire with a terminal concerning one embodiment of the present invention. 実施例における腐食試験方法を模式的に説明するための図である。It is a figure for demonstrating typically the corrosion test method in an Example.

以下、本発明の実施形態について説明する。図１に示す本実施形態にかかる端子付電線１は、電線１０および端子２０を備える。電線１０は、導電性材料からなる芯線１１が絶縁性材料からなるシース１２に覆われたものである。端子２０は、導電性材料からなり、電線１０の芯線１１にかしめられる芯線バレル２１、シース１２にかしめられるシースバレル２２、および相手方端子との嵌合部分２３を有する。例えば、芯線１１がアルミニウムやアルミニウム合金からなり、端子２０が銅、銅合金などからなる場合、芯線１１と端子２０の電気的接続部分（以下単に接続部分と称することもある）に異種金属接触部が形成される。本発明は、このような異種金属接触部が形成される電線１０の腐食防止に特に有効である。   Hereinafter, embodiments of the present invention will be described. A terminal-attached electric wire 1 according to this embodiment shown in FIG. 1 includes an electric wire 10 and a terminal 20. The electric wire 10 is obtained by covering a core wire 11 made of a conductive material with a sheath 12 made of an insulating material. The terminal 20 is made of a conductive material, and has a core wire barrel 21 that is caulked to the core wire 11 of the electric wire 10, a sheath barrel 22 that is caulked to the sheath 12, and a fitting portion 23 with a counterpart terminal. For example, when the core wire 11 is made of aluminum or an aluminum alloy and the terminal 20 is made of copper, a copper alloy, or the like, a dissimilar metal contact portion is connected to an electrical connection portion (hereinafter sometimes simply referred to as a connection portion) between the core wire 11 and the terminal 20. Is formed. The present invention is particularly effective for preventing corrosion of the electric wire 10 in which such a dissimilar metal contact portion is formed.

端子付電線１において、芯線１１と端子２０の接続部分は防食材３０（防食膜）に覆われている。防食材３０は第一防食材料３１および第二防食材料３２を含む。芯線１１と端子２０の接続部分を覆うように第一防食材料３１が塗布された後、第二防食材料３２が塗布される。   In the terminal-attached electric wire 1, the connection portion between the core wire 11 and the terminal 20 is covered with an anticorrosive material 30 (anticorrosion film). The anticorrosion material 30 includes a first anticorrosion material 31 and a second anticorrosion material 32. After the first anticorrosion material 31 is applied so as to cover the connection portion between the core wire 11 and the terminal 20, the second anticorrosion material 32 is applied.

第一防食材料３１は、少なくとも芯線１１と端子２０の接続部分を覆うようにその外側に塗布されるものであり、当該接続部分に塗布される際の粘度が５０〜１００００ｍＰａ・ｓのものである。この塗布される際の粘度は、後述する第二防食材料３２の粘度よりも小さい。表面張力は１０〜６０ｍＮ／ｍ、アルミニウム板に対する接触角が５〜７０度、アルミニウム板に対する接着強度０．１ＭＰａ以上、引張伸度が１０％以上のものを使用するとよい。   The first anticorrosive material 31 is applied to the outside so as to cover at least the connecting portion between the core wire 11 and the terminal 20, and has a viscosity of 50 to 10,000 mPa · s when applied to the connecting portion. . The viscosity at the time of application is smaller than the viscosity of the second anticorrosive material 32 described later. The surface tension may be 10 to 60 mN / m, the contact angle to the aluminum plate is 5 to 70 degrees, the adhesive strength to the aluminum plate is 0.1 MPa or more, and the tensile elongation is 10% or more.

第二防食材料３２は、少なくとも芯線１１と端子２０の接続部分に塗布された第一防食材料３１の外側に塗布されるものであり、塗布される際の粘度が１００００〜５００００ｍＰａ・ｓのものである。この塗布される際の粘度は、上記第一防食材料３１の粘度よりも大きい。表面張力は１０〜６０ｍＮ／ｍ、アルミニウム板に対する接触角が５〜７０度、アルミニウム板に対する接着強度０．１ＭＰａ以上、引張伸度が１０％以上のものを使用するとよい。   The second anticorrosive material 32 is applied to at least the outer side of the first anticorrosive material 31 applied to the connecting portion between the core wire 11 and the terminal 20, and has a viscosity of 10,000 to 50,000 mPa · s when applied. is there. The viscosity at the time of application is larger than the viscosity of the first anticorrosive material 31. The surface tension may be 10 to 60 mN / m, the contact angle to the aluminum plate is 5 to 70 degrees, the adhesive strength to the aluminum plate is 0.1 MPa or more, and the tensile elongation is 10% or more.

上記第一防食材料３１および第二防食材料３２としては、疎水性を有する樹脂材料が適用できる。具体的には、熱可塑性樹脂（オレフィン樹脂、ポリアミド樹脂、ポリエステル樹脂、アクリル樹脂など）、熱硬化性樹脂（エポキシ樹脂、シリコーン樹脂、ウレタン樹脂、フェノール樹脂など）、紫外線硬化性樹脂（エポキシ樹脂、シリコーン樹脂、ウレタン樹脂、アクリル樹脂など）、嫌気硬化性樹脂（アクリル樹脂など）などが適用できるが、塗布しやすさを考慮すると常温で液体（上記粘度範囲内にある液体）である、熱硬化性樹脂、紫外線硬化性樹脂、嫌気硬化性樹脂などの反応硬化型樹脂を用いることが望ましい。例えば、熱硬化性樹脂は、粘度が上記範囲内となるように加熱した状態で芯線１１と端子２０の接続部分に塗布しなければならないため、塗布作業が困難である。また、第一防食材料３１とその上から塗布される第二防食材料３２の接着性を考慮すると、両防食材料を粘度の異なる同じ材質のものとすることが好ましい。   As the first anticorrosion material 31 and the second anticorrosion material 32, a resin material having hydrophobicity can be applied. Specifically, thermoplastic resin (olefin resin, polyamide resin, polyester resin, acrylic resin, etc.), thermosetting resin (epoxy resin, silicone resin, urethane resin, phenol resin, etc.), ultraviolet curable resin (epoxy resin, Silicone resin, urethane resin, acrylic resin, etc.), anaerobic curable resin (acrylic resin, etc.) can be applied, but considering the ease of application, it is liquid at room temperature (liquid within the above viscosity range), thermosetting It is desirable to use a reaction curable resin such as a curable resin, an ultraviolet curable resin, and an anaerobic curable resin. For example, since the thermosetting resin must be applied to the connecting portion between the core wire 11 and the terminal 20 in a state of being heated so that the viscosity is within the above range, the application work is difficult. In consideration of the adhesion between the first anticorrosion material 31 and the second anticorrosion material 32 applied from above, it is preferable that both anticorrosion materials are made of the same material having different viscosities.

上記本実施形態にかかる端子付電線１によれば、相対的に低粘度の第一防食材料３１が芯線１１と端子２０の接続部分に濡れ広がることにより当該接続部分に密着する。また、相対的に高粘度の第二防食材料３２は防食材料として十分な厚みを確保するために機能する。このように、内側に相対的に低粘度の第一防食材料３１を塗布し、その外側に相対的に高粘度の第二防食材料３２を塗布することにより、芯線１１と端子２０の接続部分に密着し、かつ十分な厚みをもつ防食材３０に端子２０と芯線１１の接続部分が覆われる。つまり、相対的に低粘度の第一防食材料３１と相対的に高粘度の第二防食材料３２によって防食に必要な機能を分担させることで、優れた防食機能をもつ端子付電線１が得られる。   According to the terminal-equipped electric wire 1 according to the present embodiment, the relatively low-viscosity first anticorrosive material 31 wets and spreads on the connection portion between the core wire 11 and the terminal 20 and thereby adheres to the connection portion. Moreover, the relatively high viscosity second anticorrosion material 32 functions to ensure a sufficient thickness as an anticorrosion material. Thus, the relatively low-viscosity first anticorrosive material 31 is applied on the inner side, and the relatively high-viscosity second anticorrosive material 32 is applied on the outer side thereof, so that the connecting portion between the core wire 11 and the terminal 20 is applied. The connection part of the terminal 20 and the core wire 11 is covered with the anticorrosion material 30 which adheres and has sufficient thickness. That is, the electric wire with terminal 1 having an excellent anticorrosion function can be obtained by sharing the functions necessary for anticorrosion by the relatively low viscosity first anticorrosion material 31 and the relatively high viscosity second anticorrosion material 32. .

以下、本発明を実施例を用いて詳細に説明する。なお、本発明はこれら実施例によって限定されるものではない。   Hereinafter, the present invention will be described in detail with reference to examples. In addition, this invention is not limited by these Examples.

１．自動車用アルミニウム電線の作製
ポリ塩化ビニル（重合度１３００）１００質量部に対して、可塑剤としてジイソノニルフタレート４０質量部、充填剤として重炭酸カルシウム２０質量部、安定剤としてカルシウム亜鉛系安定剤５質量部をオープンロールにより１８０℃で混合し、ペレタイザーにてペレット状に成形することにより、ポリ塩化ビニル組成物を調製した。 1. Production of automotive aluminum wire 100 parts by weight of polyvinyl chloride (degree of polymerization 1300), 40 parts by weight of diisononyl phthalate as plasticizer, 20 parts by weight of calcium bicarbonate as filler, 5 parts by weight of calcium zinc-based stabilizer as stabilizer A polyvinyl chloride composition was prepared by mixing the parts with an open roll at 180 ° C. and forming them into pellets with a pelletizer.

次いで、５０ｍｍ押出機を用いて、上記得られたポリ塩化ビニル組成物を、アルミ合金線を７本撚り合わせたアルミニウム合金撚線よりなる芯線１１（断面積０．７５ｍｍ２）の周囲に０．２８ｍｍ厚で押出被覆した。これによりアルミニウム電線（ＰＶＣ電線）を作製した。   Next, using a 50 mm extruder, the polyvinyl chloride composition obtained above was 0.28 mm around the core wire 11 (cross-sectional area 0.75 mm2) made of an aluminum alloy twisted wire in which seven aluminum alloy wires were twisted together. Extrusion coated with thickness. This produced the aluminum electric wire (PVC electric wire).

２．端子の圧着および防食材料の塗布
上記作製したアルミニウム電線の端末を皮剥して芯線を露出させた後、自動車用として汎用されている黄銅製のオス形状の端子（タブ幅０．６４ｍｍ、芯線バレルおよびシースバレルを有する）を芯線にかしめ圧着した。 2. Crimping of terminal and application of anticorrosive material After stripping the terminal of the produced aluminum electric wire and exposing the core wire, a male terminal made of brass (tab width 0.64 mm, core barrel and (With a sheath barrel) was crimped and crimped onto the core wire.

次いで、アルミニウム電線の芯線と端子の接続部分（圧着部分）の全周囲を覆うようにして、低粘度の第一シリコーン樹脂（第一防食材料３１）を塗布した。第一シリコーン樹脂（第一防食材料３１）を硬化させた後、高粘度の第二シリコーン樹脂（第二防食材料３２）を塗布し、硬化させた。なお、ＡＥＲＯＧＩＬ２００（エボニックインダストリー社製）を用いてシリコーン樹脂（信越シリコーン社製）の粘度調整を行うことにより、所定の粘度の第一シリコーン樹脂および第二シリコーン樹脂を得た。   Next, a low-viscosity first silicone resin (first anticorrosion material 31) was applied so as to cover the entire periphery of the connecting portion (crimped portion) between the core wire and the terminal of the aluminum electric wire. After the first silicone resin (first anticorrosion material 31) was cured, a high-viscosity second silicone resin (second anticorrosion material 32) was applied and cured. In addition, by adjusting the viscosity of the silicone resin (manufactured by Shin-Etsu Silicone) using AEROGIL200 (manufactured by Evonik Industry Co., Ltd.), a first silicone resin and a second silicone resin having a predetermined viscosity were obtained.

なお、第一シリコーン樹脂および第二シリコーン樹脂の各種特性の測定方法は次の通りである。粘度はＪＩＳＺ８８０３に準拠して測定した。表面張力は自動表面張力計（ＣＢＶＰ−Ｚ型；協和界面科学社製）を用いプレート法にて測定した。接触角は個液界面解析システム（ＤｒｏｐＭａｓｔｅｒ５００画像処理式；協和界面科学社製）を用い、アルミニウム板に対するものを測定した。接着強度はＪＩＳ６８５０に準拠して、アルミニウム板に対するものを測定した。引張伸度はＪＩＳＫ６２５１に準拠して測定した。防食材３０の厚みはマイクロスコープ（ＶＸ１０００；キーエンス社製）を使用して端子表面から塗布したシリコーン樹脂表面（防食材３０表面（塗布された第一シリコーン樹脂および第二シリコーン樹脂によって形成された層の表面）までの距離を測定することにより得た。   In addition, the measuring method of the various characteristics of a 1st silicone resin and a 2nd silicone resin is as follows. The viscosity was measured according to JISZ8803. The surface tension was measured by a plate method using an automatic surface tension meter (CBVP-Z type; manufactured by Kyowa Interface Science Co., Ltd.). The contact angle was measured with respect to an aluminum plate using an individual liquid interface analysis system (DropMaster 500 image processing type; manufactured by Kyowa Interface Science Co., Ltd.). The adhesive strength was measured on an aluminum plate according to JIS6850. The tensile elongation was measured according to JISK6251. The thickness of the anticorrosion material 30 is the surface of the silicone resin applied from the terminal surface using a microscope (VX1000; manufactured by Keyence Corporation) (the surface formed of the anticorrosion material 30 surface (the first silicone resin and the second silicone resin applied). It was obtained by measuring the distance to the surface.

このようにして作製した端子付電線１を１２Ｖ電源９１の＋極につなぐとともに、純銅板９２（幅１ｃｍ×長さ２ｃｍ×厚み１ｍｍ）を１２Ｖ電源９１の−極につなぎ、端子付電線１の芯線と端子の接続部分および純銅板を３００ｃｃのＮａＣｌ５％水溶液９３に浸漬し、１２Ｖで２分間通電した（図２参照）。通電後、ＮａＣｌ５％水溶液９３のＩＣＰ発光分析を行ない、端子付電線１の芯線からのアルミニウムイオンの溶出量を測定した。溶出量が０．１ｐｐｍ未満であった場合を「○」とし、溶出量が０．１ｐｐｍ以上であった場合を「×」とした。   The terminal-attached electric wire 1 thus produced was connected to the + pole of the 12V power supply 91, and a pure copper plate 92 (width 1 cm × length 2 cm × thickness 1 mm) was connected to the −pole of the 12V power supply 91, The connecting portion between the core wire and the terminal and the pure copper plate were immersed in a 300 cc NaCl 5% aqueous solution 93 and energized at 12 V for 2 minutes (see FIG. 2). After energization, ICP emission analysis of NaCl 5% aqueous solution 93 was performed, and the elution amount of aluminum ions from the core wire of the terminal-attached electric wire 1 was measured. The case where the elution amount was less than 0.1 ppm was designated as “◯”, and the case where the elution amount was 0.1 ppm or more was designated as “x”.

第二シリコーン樹脂の塗布時の粘度を２００００ｍＰａ・ｓとして、第一シリコーン樹脂の塗布時の粘度を変化させたときの試験結果を表１に、第一シリコーン樹脂の塗布時の粘度を１０００ｍＰａ・ｓとして、第二シリコーン樹脂の塗布時の粘度を変化させたときの試験結果を表２に示す。   Table 1 shows the test results when the viscosity when the second silicone resin is applied is 20000 mPa · s, and the viscosity when the first silicone resin is applied, and the viscosity when the first silicone resin is applied is 1000 mPa · s. Table 2 shows the test results when the viscosity during application of the second silicone resin was changed.

Figure 2014120283
Figure 2014120283
Figure 2014120283
Figure 2014120283

第一シリコーン樹脂の粘度が５０〜１００００ｍＰａ・ｓである場合には、異種金属の接触部分を覆う防食材料として優れた防食性能を発揮することがわかった。低粘度の第一シリコーン樹脂が芯線と端子の接続部分に濡れ広がるためであると思われる。また、第一シリコーン樹脂の粘度が１００００ｍＰａ・ｓを超えると、濡れ広がり性が低下することにより、防食性能が低下するものと推測される。   It has been found that when the viscosity of the first silicone resin is 50 to 10,000 mPa · s, the anticorrosion performance excellent as an anticorrosion material covering the contact portion of the dissimilar metal is exhibited. This is probably because the low-viscosity first silicone resin wets and spreads at the connecting portion between the core wire and the terminal. Moreover, when the viscosity of a 1st silicone resin exceeds 10000 mPa * s, it will be estimated that the anti-corrosion performance falls by the wet-spreading property falling.

第二シリコーン樹脂の粘度が１００００〜５００００ｍＰａ・ｓである場合には、異種金属の接触部分を覆う防食材料として優れた防食性能を発揮することがわかった。高粘度の第二シリコーン樹脂によって防食材３０の十分な厚みが確保できるためであると思われる。また、第二シリコーン樹脂の粘度が１００００ｍＰａ・ｓ未満であると、十分な厚みが確保できないことにより、防食性能が低下するものと推測される。さらに、第二シリコーン樹脂の粘度が５００００ｍＰａ・ｓを超えると、加工が困難となり、必要となる範囲を塗布できないため、防食性能が低下するものと推測される。   It was found that when the viscosity of the second silicone resin was 10,000 to 50,000 mPa · s, the anticorrosion performance excellent as an anticorrosion material covering the contact portion of the dissimilar metal was exhibited. This is probably because a sufficient thickness of the anticorrosion material 30 can be secured by the high viscosity second silicone resin. In addition, when the viscosity of the second silicone resin is less than 10,000 mPa · s, it is presumed that the corrosion resistance is deteriorated because sufficient thickness cannot be secured. Furthermore, when the viscosity of the second silicone resin exceeds 50000 mPa · s, processing becomes difficult, and the necessary range cannot be applied.

以上、本発明の実施の形態について詳細に説明したが、本発明は上記実施の形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の改変が可能である。   Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

１ 端子付電線
１０ 電線
１１ 芯線
２０ 端子
２１ 芯線バレル
３０ 防食材
３１ 第一防食材料
３２ 第二防食材料 DESCRIPTION OF SYMBOLS 1 Electric wire with a terminal 10 Electric wire 11 Core wire 20 Terminal 21 Core wire barrel 30 Anticorrosion material 31 First anticorrosion material 32 Second anticorrosion material

Claims (3)

電線およびこの電線の芯線に接続された部分を有する端子を備える端子付電線であって、
前記端子における前記芯線に接続された部分の外側に粘度が５０〜１００００ｍＰａ・ｓである第一防食材料を塗布した後、この第一防食材料の外側に第一防食材料よりも高粘度である粘度が１００００〜５００００ｍＰａ・ｓである第二防食材料を塗布してなる端子付電線。 An electric wire with a terminal comprising a wire and a terminal having a portion connected to the core of the wire,
After applying a first anticorrosive material having a viscosity of 50 to 10,000 mPa · s to the outside of the portion of the terminal connected to the core wire, the viscosity of the first anticorrosive material is higher than that of the first anticorrosive material. Is a terminal-attached electric wire formed by applying a second anticorrosive material having a viscosity of 10,000 to 50,000 mPa · s. 塗布された前記第一防食材料および前記第二防食材料によって形成された防食材の厚みが１．０〜２．５ｍｍである請求項１に記載の端子付電線。   The electric wire with a terminal according to claim 1, wherein a thickness of the anticorrosion material formed by the applied first anticorrosion material and the second anticorrosion material is 1.0 to 2.5 mm. 前記第一防食材料および前記第二防食材料はともに常温で液体である反応硬化型樹脂である請求項１または請求項２に記載の端子付電線。   The electric wire with a terminal according to claim 1 or 2, wherein both the first anticorrosive material and the second anticorrosive material are reactive curable resins that are liquid at room temperature.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016181367A (en) * 2015-03-24 2016-10-13 古河電気工業株式会社 Connection structure, wire harness, and method of manufacturing connection structure
WO2016194567A1 (en) * 2015-05-29 2016-12-08 株式会社オートネットワーク技術研究所 Terminal-equipped electric wire and method for producing same
CN111201674A (en) * 2017-10-25 2020-05-26 株式会社自动网络技术研究所 Terminal-equipped electric wire and wire harness
JP2021114479A (en) * 2016-05-25 2021-08-05 古河電気工業株式会社 Wire with terminal

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Publication number Priority date Publication date Assignee Title
JP2011238500A (en) * 2010-05-12 2011-11-24 Furukawa Electric Co Ltd:The Connection structure and manufacturing method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011238500A (en) * 2010-05-12 2011-11-24 Furukawa Electric Co Ltd:The Connection structure and manufacturing method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016181367A (en) * 2015-03-24 2016-10-13 古河電気工業株式会社 Connection structure, wire harness, and method of manufacturing connection structure
WO2016194567A1 (en) * 2015-05-29 2016-12-08 株式会社オートネットワーク技術研究所 Terminal-equipped electric wire and method for producing same
JP2021114479A (en) * 2016-05-25 2021-08-05 古河電気工業株式会社 Wire with terminal
JP7157846B2 (en) 2016-05-25 2022-10-20 古河電気工業株式会社 Wire with terminal
CN111201674A (en) * 2017-10-25 2020-05-26 株式会社自动网络技术研究所 Terminal-equipped electric wire and wire harness
CN111201674B (en) * 2017-10-25 2021-09-17 株式会社自动网络技术研究所 Terminal-equipped electric wire and wire harness

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