WO2014148071A1 - 端子付き被覆電線 - Google Patents
端子付き被覆電線 Download PDFInfo
- Publication number
- WO2014148071A1 WO2014148071A1 PCT/JP2014/050492 JP2014050492W WO2014148071A1 WO 2014148071 A1 WO2014148071 A1 WO 2014148071A1 JP 2014050492 W JP2014050492 W JP 2014050492W WO 2014148071 A1 WO2014148071 A1 WO 2014148071A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electric wire
- anticorrosive
- terminal
- oil
- terminal fitting
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
- H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
Definitions
- the present invention relates to a coated electric wire with a terminal, and more specifically, relates to a coated electric wire with a terminal that is excellent in corrosion resistance of an electric connection portion between an electric wire conductor and a terminal fitting.
- Terminal fittings are connected to the wire conductors of the ends of the covered wires that are routed in vehicles such as automobiles.
- Patent Document 1 discloses a connector in which the terminal fitting connected to the wire conductor is inserted and locked. A technique for injecting grease is disclosed.
- the use of aluminum or aluminum alloys as a material for electric wire conductors has been studied.
- copper or a copper alloy is often used as a material for the terminal fitting.
- the surface of the terminal fitting is often subjected to plating such as tin plating.
- the wire conductor and the terminal fitting may be made of different materials. If the wire conductor and the terminal fitting are made of different materials, corrosion due to contact with different metals occurs at the electrical connection portion. For this reason, it is calculated
- the terminal fitting is usually formed into a predetermined shape by press working using processing oil.
- processing oil may be used when the terminal fitting is crimped to the wire conductor.
- the processing oil used during processing remains on the surface of the terminal fitting. Since the remaining processing oil protects the surface of the terminal fitting from corrosion as a coating, from the viewpoint of corrosion prevention, it is preferable that the processing oil remains on the surface of the terminal fitting.
- the problem to be solved by the present invention is to provide a coated electric wire with a terminal excellent in anticorrosion performance after a thermal shock.
- a coated electric wire with a terminal includes a terminal fitting, to which processing oil adheres to the surface, and an electric connection portion in which the electric wire conductor of the coated electric wire is electrically connected, a resin and an oil-absorbing filler.
- the gist is that it is coated with the contained anticorrosive.
- the amount of the oil-absorbing filler contained in the anticorrosive is preferably in the range of 0.5 to 25% by mass. Further, the oil absorption amount measured according to JIS K 5101 of the oil absorbing filler is preferably 10 ml / 100 g or more.
- the oil absorbing filler is preferably at least one selected from carbon black, silica, calcium carbonate, calcium silicate, magnesium hydroxide, and talc.
- the resin contained in the anticorrosive is preferably at least one selected from an epoxy resin, a polyamide resin, an acrylic resin, a urethane resin, and a silicone resin.
- the oil-absorbing filler contained in the anticorrosive agent absorbs the processing oil adhering to the surface of the terminal fitting, and the resin contained in the anticorrosive adheres to the metal on the surface of the terminal fitting. Because it becomes easier, excellent anticorrosion performance is maintained even after thermal shock.
- the amount of the oil-absorbing filler contained in the anticorrosive agent is in the range of 0.5 to 25% by mass, the oil absorption effect of the processing oil is high. Further, the increase in viscosity of the anticorrosive agent is suppressed, and the ease of penetration into the details of the terminal fitting and the electric wire conductor in the electrical connection portion is maintained.
- the oil absorption amount of the oil-absorbing filler is a specific amount or more, a high oil absorption effect can be exhibited with a small amount. Therefore, it is possible to achieve both an excellent oil absorption effect and an excellent permeability.
- FIG. 2 is a longitudinal sectional view taken along line AA in FIG.
- FIG. 1 is an external perspective view showing an example of a coated electric wire with a terminal according to the present invention
- FIG. 2 is a longitudinal sectional view taken along line AA in FIG.
- the coated electric wire with terminal 1 of the present invention is such that the electric wire conductor 3 of the covered electric wire 2 in which the electric wire conductor 3 is covered with the insulator 4 and the terminal fitting 5 are electrically connected by the electric connection portion 6. Connected to.
- the terminal fitting 5 includes a tab-like connection portion 51 made of an elongated flat plate connected to a counterpart terminal, a wire barrel 52 extending at the end of the connection portion 51, and an electric wire fixing portion made of an insulation barrel 53. 54.
- the insulator 4 at the end of the covered electric wire 2 is peeled off to expose the electric wire conductor 3, and the exposed electric wire conductor 3 is crimped to one side of the terminal metal fitting 5. And the terminal fitting 5 are connected.
- the wire barrel 52 of the terminal fitting 5 is crimped from above the wire conductor 3 of the covered electric wire 2 so that the wire conductor 3 and the terminal fitting 5 are electrically connected.
- the insulation barrel 53 of the terminal fitting 5 is crimped from above the insulator 4 of the covered electric wire 2.
- the terminal fitting 5 is formed (processed) into a predetermined shape by pressing a metal plate.
- a processing oil such as a hydrocarbon-based processing oil is used. Therefore, processing oil remains (attaches) on the surface of the terminal fitting 5 immediately after molding.
- processing oil may be used also in the case of pressure bonding (processing). In this case, the processing oil remains (attaches) on the surface of the terminal fitting 5 immediately after the crimping. Further, like the terminal fitting 5, the processing oil remains (attaches) on the surface of the wire conductor 3 immediately after the crimping.
- the amount of processing oil deposited is approximately 0.2 to 1 mg / cm 2 .
- the amount of the processing oil adhering to the surface of the terminal fitting 5 is determined by extracting the processing oil using a solvent that easily dissolves the processing oil and measuring the amount of the processing oil in the solvent using an absorptiometric method or the like. Can be obtained.
- a solvent that easily dissolves the processing oil include hydrocarbon solvents such as hexane.
- the electrical connection portion 6 is covered with the anticorrosive 7 in the range indicated by the one-dot chain line in FIG. 1. 1 is shown in a state where the anticorrosive 7 is seen through.
- the anticorrosive 7 prevents the metal portion from corroding due to the entry of moisture or the like into the wire conductor 3, the contact portion between the wire conductor 3 and the terminal fitting 5 from the outside.
- covered is the following parts.
- the tip 2 a side of the covered electric wire 2 is covered with the anticorrosive 7 so as to slightly protrude from the tip of the wire conductor 3 to the connecting portion 51 side of the terminal fitting 5.
- the tip 5 a side of the terminal fitting 5 is covered with the anticorrosive 7 so as to slightly protrude from the end of the insulation barrel 53 to the insulator 4 side of the covered electric wire 2.
- the side surface 5 b of the terminal fitting 5 is also covered with the anticorrosive agent 7.
- the back surface 5 c of the terminal fitting 5 is not covered with the anticorrosive 7.
- the electrical connection portion 6 is covered with the anticorrosive agent 7 with a predetermined thickness along the outer peripheral shape of the terminal fitting 5 and the covered electric wire 2.
- the portion where the end of the covered wire 2 is peeled off and the wire conductor 3 is exposed is completely covered with the anticorrosive 7 and is not exposed to the outside. If the electrical connection is not affected, the back side of the wire fixing portion 54 of the terminal fitting 5 (including the back side of the wire barrel 52 and the insulation barrel 53) may be covered with the anticorrosive 7. .
- a gap is formed between the surface of the terminal fitting 5 and the anticorrosive 7.
- the gap becomes large.
- moisture or the like enters the electrical connection portion 6 from the outside, and corrosion of the metal portion proceeds.
- a specific anticorrosive agent 7 is used.
- the anticorrosive 7 is made of a resin and an oil-absorbing filler.
- the oil-absorbing filler contained in the anticorrosive agent 7 absorbs the processing oil adhering to the surface of the terminal fitting 5, and the resin contained in the anticorrosive agent 7 becomes easy to adhere to the metal on the surface of the terminal fitting 5. For this reason, the excellent anticorrosion performance is maintained even after the thermal shock.
- the oil-absorbing filler contained in the anticorrosive 7 may be an inorganic filler or an organic filler.
- Specific examples of the oil absorbing filler include carbon black, silica, calcium carbonate, calcium silicate, nylon fine particles, magnesium hydroxide, and talc. These may be used alone or in combination of two or more.
- Oil-absorbing filler is a kind of filler and has a thickening effect when blended. If the content of the oil-absorbing filler is large, the ease of penetrating into the details of the terminal fitting 5 and the electric wire conductor 3 in the electrical connection portion 6 decreases due to the increase in viscosity, and the applicability of the anticorrosive 7 decreases. Therefore, the increase in the viscosity of the anticorrosive agent 7 is suppressed, and the oil absorbency contained in the anticorrosive agent 7 is maintained from the viewpoint of maintaining ease of penetration into the details of the terminal fitting 5 and the wire conductor 3 in the electrical connection portion 6.
- As a quantity of a filler 25 mass% or less is preferable. More preferably, it is 20 parts by mass or less.
- the amount of the oil-absorbing filler contained in the anticorrosive 7 is preferably 0.5% by mass or more from the viewpoint that the oil absorption effect of the processing oil by the oil-absorbing filler is excellent. More preferably, it is 10 parts by mass or more.
- the oil absorption amount of the oil-absorbing filler is preferably 10 ml / 100 g or more from the viewpoint that both an excellent oil absorption effect and an excellent penetrability (coating property) can be achieved. More preferably, it is 50 ml / 100 g or more.
- the oil absorption amount of the oil-absorbing filler is measured according to JIS K 5101.
- the resin contained in the anticorrosive 7 examples include an epoxy resin, a polyamide resin, an acrylic resin, a urethane resin, and a silicone resin. These may be used alone or in combination of two or more. Of these resins, the curable resin is finally cured.
- the anticorrosive 7 may contain additives such as coloring pigments, viscosity modifiers, anti-aging agents, inorganic fillers, storage stabilizers, and dispersants.
- Epoxy resins include bisphenol A type epoxy resins made from phenols, bisphenol F type epoxy resins, bisphenol AD type epoxy resins, aliphatic epoxy resins such as alcohols, epoxy resins made from amines, o- Examples include cresol novolac epoxy resins made from cresol novolac resins.
- the anticorrosive 7 has a viscosity at 25 ° C. in the range of 1000 to 30000 mPa ⁇ s at the time of application from the viewpoint that a predetermined amount can be reliably applied.
- the viscosity is a value measured with a rotational viscometer in accordance with JISZ8803.
- the viscosity of the anticorrosive agent 7 is too high, the fluidity of the material becomes insufficient at the time of application, and it becomes difficult to fill a predetermined portion with a sufficient amount of the anticorrosive agent 7. If the viscosity of the anticorrosive agent 7 is too low, the anticorrosive agent 7 flows out at the time of application, and it becomes difficult to secure a sufficient anticorrosive agent 7 at a predetermined location.
- the anticorrosive agent 7 is preferably applied so that the thickness of the coated film is in the range of 0.01 to 0.1 mm. If the thickness of the anticorrosive 7 becomes too thick, it may be difficult to insert the terminal fitting 5 into the connector. Moreover, when the thickness of the anticorrosive 7 becomes too thin, there exists a possibility that anticorrosion performance may become inadequate.
- the anticorrosive agent 7 can be applied by a known means such as a dropping method, a coating method, or an extrusion method. Further, when the anticorrosive agent 7 is applied, the temperature of the anticorrosive agent 7 may be adjusted by heating, cooling, or the like. Moreover, in order to improve the permeability (coating property) of the anticorrosive agent 7, when applying, the anticorrosive agent 7 may be diluted with a solvent to form a liquid.
- the wire conductor 3 of the covered electric wire 2 is made of a stranded wire formed by twisting a plurality of strands 3a.
- the stranded wire may be composed of one type of metal strand or may be composed of two or more types of metal strand.
- the twisted wire may contain the strand etc. which consist of organic fibers other than a metal strand.
- “consisting of one type of metal strand” means that all the metal strands constituting the stranded wire are made of the same metal material, and “consisting of two or more types of metal strands” This means that the wire contains metal wires made of different metal materials.
- the stranded wire may include a reinforcing wire (tension member) for reinforcing the covered electric wire.
- Examples of the material of the metal wire constituting the wire conductor 3 include copper, copper alloy, aluminum, aluminum alloy, and materials obtained by plating these materials.
- Examples of the material of the metal strand as the reinforcing wire include copper alloy, titanium, tungsten, and stainless steel.
- Examples of the organic fiber as the reinforcing wire include Kevlar.
- Examples of the material of the insulator 4 include rubber, polyolefin, PVC, and thermoplastic elastomer. These may be used alone or in combination of two or more.
- Various additives may be appropriately added to the material of the insulator 4. Examples of the additive include a flame retardant, a filler, a colorant and the like.
- Examples of the material (base material) of the terminal fitting 5 include various commonly used copper alloys, copper, and the like. A part (for example, a contact) or the entire surface of the terminal fitting 5 may be plated with various metals such as tin, nickel, and gold.
- Example 1 ⁇ Production of covered electric wire> 180 parts by mass of diisononyl phthalate as a plasticizer, 20 parts by mass of calcium bicarbonate as a filler, and 5 parts by mass of a calcium zinc-based stabilizer as a stabilizer are added to 100 parts by mass of polyvinyl chloride (degree of polymerization 1300) by an open roll.
- a polyvinyl chloride composition was prepared by mixing at 0 ° C. and molding into pellets with a pelletizer. Next, using a 50 mm extruder, the polyvinyl chloride composition is 0.28 mm thick around a wire conductor (cross-sectional area 0.75 mm) made of an aluminum alloy twisted wire in which seven aluminum alloy wires are twisted together. Extrusion coated. This produced the covered electric wire (PVC electric wire).
- the terminal of the covered wire is crimped and connected to the terminal fitting (with the processing oil attached) to the electrical connection between the wire conductor and the terminal fitting.
- An anticorrosive was applied to the exposed wire conductor and the barrel of the terminal fitting. Then, the hardening process of the anticorrosive was performed on the predetermined hardening conditions, and the covered electric wire with a terminal was produced. Note that the thickness of the anticorrosive is 0.05 mm.
- Example 2 In the preparation of the anticorrosive, a coated electric wire with a terminal was produced in the same manner as in Example 1 except that the amount of carbon black was changed to 5 parts by mass.
- Example 3 In the preparation of the anticorrosive agent, in the same manner as in Example 1 except that the amount of talc (“MS-P” manufactured by Nippon Talc Co., Ltd., oil absorption 28 ml / 100 g) was changed to 0.5 parts by mass in place of carbon black, A covered electric wire with a terminal was produced.
- MS-P manufactured by Nippon Talc Co., Ltd., oil absorption 28 ml / 100 g
- Example 4 In the preparation of the anticorrosive agent, a coated electric wire with a terminal was produced in the same manner as in Example 3 except that the blending amount of talc was 1.5 parts by mass.
- Example 1 In the preparation of the anticorrosive agent, a coated electric wire with a terminal was produced in the same manner as in Example 1 except that carbon black was not blended.
- the anticorrosion performance of the produced coated electric wire with terminal was evaluated. Moreover, the adhesive strength of the anticorrosive with respect to tin plating was measured for reference.
- the anticorrosion performance test was evaluated both at the initial stage after curing the anticorrosive and after the thermal shock.
- the thermal shock was in accordance with JIS C60068-2-14. A thermal shock was applied in which one cycle of holding at minus 40 ° C. for 30 minutes and then holding at plus 125 ° C. for 30 minutes was repeated for 500 cycles.
- Adhesive strength with tin plating A predetermined amount of press working oil diluted with an organic solvent is dropped onto the surface of the copper plate on which the tin plating has been applied, and then an anticorrosive agent is applied and cured under the above conditions. The adhesion strength between the anticorrosive and the cured product was measured.
Abstract
Description
<被覆電線の作製>
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。次いで、50mm押出機を用いて、上記の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電線導体(断面積0.75mm)の周囲に0.28mm厚で押出被覆した。これにより被覆電線(PVC電線)を作製した。
被覆電線の端末を皮剥して電線導体を露出させた後、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金具(タブ幅0.64mm)を被覆電線の端末に加締め圧着した。なお、用いた端子金具は、加工油を用いて加工(成形・圧着)されたものであり、端子金具の表面には、炭化水素系の加工油が付着している。
被覆電線の端末に端子金具を圧着接続したもの(防食剤を塗布する前のもの)について、端子金具および電線導体の表面に付着している加工油の付着量を調べた。具体的には、ヘキサン抽出を行い、ヘキサン中に溶解している加工油の量を吸光光度法で定量した。吸光光度計は、東ソー社製「UV-8020」を用いた。この結果、加工油の付着量は0.3mg/cm2であった。
加工油の付着量の測定に用いたものとは別の、被覆電線の端末に端子金具を圧着接続したもの(加工油が付着しているもの)について、電線導体と端子金具との電気接続部に防食剤を塗布して、露出している電線導体および端子金具のバレルを被覆した。その後、所定の硬化条件で防食剤の硬化処理を行い、端子付き被覆電線を作製した。なお、防食剤の厚さは0.05mmである。
ビスフェノールF型エポキシ樹脂(三菱化学社製「806」)と、硬化剤(三菱化学社製「DICY7」)と、硬化促進剤(旭化成イーマテリアルズ社製「ノバキュア3088」)と、吸油性フィラーとしてのカーボンブラック(ライオン社製「ケッチェンブラック」、DBP吸油量360cm3/100g)20質量部と、を混合することにより、防食剤を調製した。
防食剤の調製において、カーボンブラックの配合量を5質量部とした以外は実施例1と同様にして、端子付き被覆電線を作製した。
防食剤の調製において、カーボンブラックにかえてタルク(日本タルク社製「MS-P」、吸油量28ml/100g)の配合量を0.5質量部とした以外は実施例1と同様にして、端子付き被覆電線を作製した。
防食剤の調製において、タルクの配合量を1.5質量部とした以外は実施例3と同様にして、端子付き被覆電線を作製した。
防食剤の調製において、カーボンブラックを配合しなかった以外は実施例1と同様にして、端子付き被覆電線を作製した。
端子付き被覆電線1の断面観察を行い、防食材と端子との界面に隙間がない場合を「○」とし、隙間が発生した場合を「×」とした。防食性能の試験は、防食剤を硬化させた後の初期と、サーマルショック後の両方で評価した。サーマルショックは、JIS C60068-2-14を準拠し、マイナス40℃で30分保持した後プラス125℃で30分間保持するのを1サイクルとした熱衝撃を加え、これを500サイクル繰り返した。
錫めっきが施された銅板の表面に有機溶剤で希釈させたプレス加工油を所定量滴下し、その後防食剤を塗布し上記条件で硬化させ、JIS K6850で規定される方法で、錫めっき表面と防食剤の硬化物との接着強度を測定した。
Claims (4)
- 表面に加工油が付着する端子金具と被覆電線の電線導体とが電気的に接続された電気接続部を、樹脂および吸油性フィラーを含有する防食剤により被覆していることを特徴とする端子付き被覆電線。
- 前記防食剤中に含まれる吸油性フィラーの量が、0.5~25質量%の範囲内であることを特徴とする請求項1に記載の端子付き被覆電線。
- 前記吸油性フィラーが、カーボンブラック、シリカ、炭酸カルシウム、ケイ酸カルシウム、水酸化マグネシウム、タルクから選択される少なくとも1種であることを特徴とする請求項1または2に記載の端子付き被覆電線。
- 前記防食剤中に含まれる樹脂が、エポキシ樹脂、ポリアミド樹脂、アクリル樹脂、ウレタン樹脂、シリコーン樹脂から選択される少なくとも1種であることを特徴とする請求項1から3のいずれか1項に記載の端子付き被覆電線。
Priority Applications (4)
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US14/772,114 US20160006233A1 (en) | 2013-03-22 | 2014-01-15 | Terminated covered electric wire |
JP2015506622A JPWO2014148071A1 (ja) | 2013-03-22 | 2014-01-15 | 端子付き被覆電線 |
DE112014001580.6T DE112014001580T5 (de) | 2013-03-22 | 2014-01-15 | Ummantelter elektrischer Draht mit einer Klemme |
CN201480016335.0A CN105164859A (zh) | 2013-03-22 | 2014-01-15 | 带端子的包覆电线 |
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PCT/JP2014/050492 WO2014148071A1 (ja) | 2013-03-22 | 2014-01-15 | 端子付き被覆電線 |
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US (1) | US20160006233A1 (ja) |
JP (1) | JPWO2014148071A1 (ja) |
CN (1) | CN105164859A (ja) |
DE (1) | DE112014001580T5 (ja) |
WO (1) | WO2014148071A1 (ja) |
Cited By (3)
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WO2016194566A1 (ja) * | 2015-05-29 | 2016-12-08 | 株式会社オートネットワーク技術研究所 | 端子付き電線及びその製造方法 |
WO2016194567A1 (ja) * | 2015-05-29 | 2016-12-08 | 株式会社オートネットワーク技術研究所 | 端子付き電線及びその製造方法 |
CN110024230A (zh) * | 2016-11-22 | 2019-07-16 | 株式会社荏原制作所 | 水中马达及防水连接器 |
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JP6354608B2 (ja) * | 2015-01-29 | 2018-07-11 | 株式会社オートネットワーク技術研究所 | 端子付き被覆電線 |
JP2017195137A (ja) * | 2016-04-22 | 2017-10-26 | 株式会社オートネットワーク技術研究所 | 端子付き被覆電線およびワイヤーハーネス |
DE102016117275A1 (de) | 2016-09-14 | 2018-03-15 | Reichle & De-Massari Ag | Steckverbindervorrichtung |
JP6665882B2 (ja) * | 2018-03-30 | 2020-03-13 | 株式会社オートネットワーク技術研究所 | ワイヤーハーネス及びワイヤーハーネスの製造方法 |
JP6992728B2 (ja) * | 2018-10-30 | 2022-01-13 | 住友電装株式会社 | 端子カバー |
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US20160006233A1 (en) | 2016-01-07 |
DE112014001580T5 (de) | 2015-12-03 |
JPWO2014148071A1 (ja) | 2017-02-16 |
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