WO2012090921A1 - 自動車用絶縁電線及び自動車用ワイヤーハーネス - Google Patents
自動車用絶縁電線及び自動車用ワイヤーハーネス Download PDFInfo
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- WO2012090921A1 WO2012090921A1 PCT/JP2011/080037 JP2011080037W WO2012090921A1 WO 2012090921 A1 WO2012090921 A1 WO 2012090921A1 JP 2011080037 W JP2011080037 W JP 2011080037W WO 2012090921 A1 WO2012090921 A1 WO 2012090921A1
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- automotive
- resin
- wire
- polysulfone
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Classifications
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/301—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
- H01B3/422—Linear saturated polyesters derived from dicarboxylic acids and dihydroxy compounds
- H01B3/423—Linear aromatic polyesters
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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
- 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
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
Definitions
- the present invention relates to an insulated wire for automobiles and a wire harness for automobiles.
- a polyvinyl chloride resin composition has been generally used as an insulator for conventional low-voltage electric wires for automobiles because of its excellent flame resistance and chemical resistance.
- super engineering plastics such as polyetherimide, polysulfone, polyethersulfone, polyphenylsulfone, and polyetheretherketone, which have high mechanical strength, are used as general insulation materials for insulated wires. It is known to use (see, for example, Patent Documents 1 and 2). Therefore, an attempt was made to use these super engineering plastics as an insulator in an automotive insulated wire.
- JP-A-4-4512 Japanese Patent Application Laid-Open No. 5-225832
- Automotive insulated wires may come in contact with gasoline or battery fluid when used. Therefore, the characteristics of automobile wires are required to be liquid resistance to gasoline, battery liquid resistance to battery liquid, and the like.
- Super engineering plastics such as polyetherimide, polysulfone, polyethersulfone, polyphenylsulfone, etc. as insulators for insulated wires are amorphous and cannot satisfy liquid resistance including gasoline resistance. There was a problem.
- the aromatic polyester resin is a crystalline resin and is a material having excellent liquid resistance as an insulating material.
- the aromatic polyester resin has a problem of poor battery liquid resistance.
- An object of the present invention is to solve the above-mentioned problems of the prior art, and is excellent in liquid resistance such as gasoline resistance and battery liquid resistance, and is inexpensive and not expensive. It is providing the electric wire and the wire harness for motor vehicles.
- the insulated wire for automobiles of the present invention has a metal conductor and an insulating coating layer provided on the outer periphery of the metal conductor, and the insulating coating layer is composed of component A: polysulfone resin and component.
- B It consists of a mixed resin composition containing an aromatic polyester resin as a resin component, and the total amount of component A and component B of the mixed resin composition is 100 parts by mass. Part, component B: 5 to 40 parts by mass.
- the component A polysulfone-based resin has a flexural modulus of 2400 MPa or more, and is preferably at least one selected from the group consisting of polysulfone, polyethersulfone, and polyphenylsulfone. .
- the component B aromatic polyester resin has a melting point of 240 ° C. or higher and is at least one selected from the group consisting of polyethylene terephthalate, polybutylene naphthalate, and polyethylene naphthalate. preferable.
- the gist of the wire harness for automobiles of the present invention is to use the above-described insulated wire for automobiles.
- the insulated wire for automobiles and the wire harness for automobiles of the present invention comprise a mixed resin composition in which the insulating coating layer contains component A: polysulfone resin and component B: aromatic polyester resin as resin components, and the component of the resin component A total amount of 100 parts by mass of A and component B was composed of the component A: 95 to 60 parts by mass and the component B: 5 to 40 parts by mass, thereby comprising only a polysulfone resin or an aromatic polyester resin.
- the present invention does not use expensive polyetheretherketone as the resin component, the material cost does not become high, and an automotive insulated wire and automotive wire harness can be provided at low cost.
- FIG. 1 is a cross-sectional view showing an example of an automotive insulated wire of the present invention.
- 1 is provided with an insulating coating layer 3 formed from a mixed resin composition containing component A: polysulfone resin and component B: aromatic polyester resin on the outer periphery of a metal conductor 2. Configured.
- the metal conductor 2 is generally made of copper, but aluminum, magnesium or the like can be used as a conductor in addition to copper. Moreover, you may contain another metal in copper. Examples of other metals include iron, nickel, magnesium, and silicon. In addition to the above, the metal conductor 2 may be a metal commonly used as a conductor added to copper or used alone.
- the cross-sectional area of the metal conductor 2 is not particularly limited.
- the metal conductor 2 may use a single wire, or may use a stranded wire obtained by twisting a plurality of wires. At this time, the diameter can be reduced by twisting and compressing.
- the thickness of the insulating coating layer 3 is not particularly limited as long as the insulating performance can be exhibited.
- the thickness of the insulating coating layer 3 can be formed to an appropriate thickness according to the use of the insulated wire. When the thickness of the insulating coating layer 3 is 0.025 mm or more, it is easy to form a film of the insulating coating layer 3 uniformly, and liquid resistance, battery liquid resistance, and the like can be reliably exhibited.
- the effect of the insulated wire 1 is large when the thickness of the insulating coating layer 3 is 0.3 mm or less, preferably 0.1 mm or less.
- Insulating coating layer 3 includes component A: polysulfone-based resin and component B: aromatic polyester-based resin.
- the total amount of component A and component B of the resin component is 100 parts by mass, and component A is 95 to 60 parts by mass. It is composed of 5 to 40 parts by mass of component B.
- thermoplastic polysulfone resin a thermoplastic polysulfone resin having a sulfonyl group in the main chain is used.
- thermoplastic polysulfone-based resin examples include polysulfone, polyethersulfone, and polyphenylsulfone.
- the polysulfone-based resin has a flexural modulus of 2400 MPa or more, and using one or more selected from the group consisting of polysulfone, polyethersulfone, and polyphenylsulfone from the viewpoint of improving the wear resistance of the electric wire.
- the above flexural modulus is a value measured in an absolutely dry state at 23 ° C. in accordance with ISO 178 (ASTM-D790) “Plastic—Bending Properties Test Method”.
- the flexural modulus of the polysulfone resin is more preferably 2800 MPa or more.
- the component B aromatic polyester-based resin is a thermoplastic aromatic polyester resin having an aromatic ring and an ester bond in the main chain.
- Preferable thermoplastic aromatic polyester resins include polyethylene terephthalate, polybutylene naphthalate, polyethylene naphthalate and the like.
- aromatic polyester resins it is preferable to use one or two or more aromatic polyester resins having a melting point of 240 ° C. or more from the viewpoints of miscibility and compatibility with the polysulfone resin.
- the melting point of the aromatic polyester resin is more preferably 260 ° C. or higher.
- component B is less than 5 parts by mass, the liquid resistance is not improved. On the other hand, when the component B exceeds 40 parts by mass, the battery liquid resistance cannot be satisfied.
- the insulating coating layer 3 may have a single layer structure as shown in FIG. 1 or a laminated structure (not shown) of two or more layers. When two or more layers are used, each layer may be made of the same material or different materials as long as it is the specific mixed resin composition described above.
- the method for producing an insulated wire for automobiles according to the present invention includes, for example, mixing that constitutes the insulating coating layer 3 using a commonly used kneader such as an extruder (single screw or twin screw), a Banbury mixer, a pressure kneader, or a roll.
- a commonly used kneader such as an extruder (single screw or twin screw), a Banbury mixer, a pressure kneader, or a roll.
- An insulating electric wire 1 for an automobile can be obtained by kneading the resin composition material and extrusion-coating the insulating coating layer 3 on the outer periphery of the metal conductor 2 using an ordinary extruder or the like.
- the automotive wire harness of the present invention uses an automotive insulated wire 1 in which the insulating coating layer 2 is made of a specific mixed resin composition.
- the wire harness is subjected to processing such as connecting a connection terminal or a connector to the terminal of the upper-level automobile insulated wire, connecting a plurality of insulated wires 1 together, or connecting a plurality of insulated wires 1. It is what.
- the insulated wire for automobiles and the wire harness for automobiles of the present invention are excellent in liquid resistance against gasoline and the like and battery fluid resistance, and are suitable as low-voltage wires for automobiles used in places where they come into contact with automobile gasoline or battery fluid. .
- the liquid resistance of the present invention refers to resistance to fuel such as gasoline, fluid such as fluid such as engine oil and brake fluid.
- the battery liquid resistance is resistance to dilute sulfuric acid.
- Examples of the present invention and comparative examples are shown below.
- Examples 1-32 and Comparative Examples 1-32 [Production of electric wire]
- the mixed resin composition of the insulating coating layer was kneaded at 300 to 350 ° C. by a twin screw extruder.
- the kneaded composition was extruded around conductors having the conductor cross-sectional areas shown in Tables 1 to 8 to have insulation thicknesses shown in Tables 1 to 8, and Examples 1 to 32 and Comparative Examples 1 to 32 were used.
- An insulated wire was obtained.
- the extrusion temperature for extrusion was 300 to 350 ° C. for the die and 300 to 350 ° C. for the cylinder.
- the linear speed of extrusion molding was 50 m / min.
- the obtained insulated wires were tested for liquid resistance and battery liquid resistance.
- the test results are shown in Tables 1 to 8.
- the concrete usage material and test method of each component are as follows.
- Polysulfone UdelP-1700NT (flexural modulus: 2700 Mpa, manufactured by Solvay Advanced Polymers)
- Polyethersulfone Radel A-300A (flexural modulus: 2900 MPa, manufactured by Solvay Advanced Polymers)
- Polyphenylsulfone RadelR-5800 (flexural modulus: 2400 MPa, manufactured by Solvay Advanced Polymers)
- Polyethylene terephthalate Novapex GS400 (melting point: 256 ° C., manufactured by Mitsubishi Chemical Corporation)
- Polyethylene naphthalate Teonex TN-8065S (melting point: 265 ° C, manufactured by Teijin Chemicals)
- the evaluation of the liquid resistance is based on the case where the pass / fail judgment result of 7 types of liquids is 0 for 3 types, x for cases where 4 to 6 types pass, and ⁇ for cases where 4 to 6 types pass. ⁇ .
- the evaluation temperatures and the outer diameter change rate prescribed values of the seven liquids are as shown in the following (1) to (7).
- Examples 1 to 32 of the present invention all satisfied liquid resistance and battery liquid resistance.
- Comparative Examples 1 to 3, 15, 17, 20, and 23 did not contain an aromatic polyester resin and consisted only of a polysulfone resin, so that the liquid resistance was insufficient. Further, Comparative Examples 4 to 6, 16, 25, 29, and 32 were not made of polysulfone resin and consisted of only aromatic polyester resin, so that the battery liquid resistance was insufficient.
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Insulating Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
Abstract
Description
実施例1~32、比較例1~32
〔電線の作製〕
表1~8に示す成分A、成分Bの成分組成に従って、絶縁被覆層の混合樹脂組成物を二軸押出機により300~350℃で混練した。混練した組成物を表1~8に示す導体断面積の導体の周囲に、表1~8に示す絶縁厚に絶縁被覆層を押出成形して、実施例1~32、比較例1~32の絶縁電線を得た。また押出成形の押出温度は、ダイスが300~350℃、シリンダが300~350℃とした。また押出成形の線速度は、50m/minで行った。得られた絶縁電線について、耐液性及び耐バッテリー液性の試験を行った。試験結果を表1~8に合わせて示す。尚、各成分の具体的な使用材料、及び試験方法は、下記の通りである。
・ポリサルホン:UdelP-1700NT(曲げ弾性率:2700Mpa、ソルベイアドバンスドポリマーズ社製)
・ポリエーテルサルホン:RadelA-300A(曲げ弾性率:2900MPa、ソルベイアドバンスドポリマーズ社製)
・ポリフェニルサルホン:RadelR-5800(曲げ弾性率:2400MPa、ソルベイアドバンスドポリマーズ社製)
・ポリエチレンテレフタレート:ノバペックスGS400(融点:256℃、三菱化学社製)
・ポリブチレンナフタレート:TQB-OT(融点:243℃、帝人化成社製)・ポリエチレンナフタレート:テオネックスTN-8065S(融点:265℃、帝人化成社製)
ISO6722に準拠し、規定されている7種の液体について、それぞれ規定の温度で20時間、絶縁電線を浸漬させ、浸漬前後の外径変化率を測定し、外径変化率が規定値以下であり、更に絶縁電線の外径の5倍径のマンドレルを用いて巻付け試験を行い、1kv×1minの耐電圧試験を行い、絶縁破断による導通が無い場合を各液体の耐液性を合格と判定し、それ以外を不合格と判定した。そして耐液性の評価は、7種の液体の合否判定結果が、0~3種に合格の場合を×とし、4~6種に合格の場合を△とし、全7種に合格した場合を○とした。尚、7種の液体の評価温度、外径変化率規定値は以下の(1)~(7)に示す通りである。
(1)ガソリン(評価温度:23℃、外径変化率規定値:15%)
(2)ディーゼル燃料(評価温度:23℃、外径変化率規定値:15%)
(3)エンジンオイル(評価温度:50℃、外径変化率規定値:15%)
(4)エタノール(評価温度:23℃、外径変化率規定値:15%)
(5)パワーステアリング液(評価温度:50℃、外径変化率規定値:30%)
(6)オートマチックトランスミッションフルード(評価温度:50℃、外径変化率規定値:25%)
(7)エンジンクーラント(評価温度:50℃、外径変化率規定値:15%)
ISO6722に準拠し、温度90℃の条件下で35%(質量%)の希硫酸を絶縁電線に滴下して放置し、8時間後、16時間後に同じ箇所に希硫酸を滴下する操作を1サイクルとして、希硫酸の滴下を2サイクル繰り返した後、絶縁電線を室温に取り出して、絶縁電線の外径の5倍径のマンドレルを用いて巻付け試験を行い、1kv×1minの耐電圧試験を行い、絶縁破断による導通が無い場合を合格(○)とし、それ以外を不合格(×)とした。
Claims (4)
- 金属導体と該金属導体の外周に設けられた絶縁被覆層とを有し、前記絶縁被覆層が成分A:ポリサルホン系樹脂と成分B:芳香族ポリエステル系樹脂を樹脂成分として含有する混合樹脂組成物からなるものであり、前記混合樹脂組成物の成分Aと成分Bの合計量100質量部が、前記成分Aが95~60質量部、前記成分Bが5~40質量部からなることを特徴とする自動車用絶縁電線。
- 前記成分A:ポリサルホン系樹脂が、曲げ弾性率2400MPa以上であり、ポリサルホン、ポリエーテルサルホン、ポリフェニルサルホンからなる群から選択される1種以上であることを特徴とする請求項1記載の自動車用絶縁電線。
- 前記成分B:芳香族ポリエステル系樹脂が、融点240℃以上であり、ポリエチレンテレフタレート、ポリブチレンナフタレート、ポリエチレンナフタレートからなる群から選択される1種以上であることを特徴とする請求項1又は2記載の自動車用絶縁電線。
- 請求項1~3のいずれか1項に記載の自動車用絶縁電線を用いることを特徴とする自動車用ワイヤーハーネス。
Priority Applications (4)
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JP2012550931A JP5534035B2 (ja) | 2010-12-27 | 2011-12-26 | 自動車用絶縁電線及び自動車用ワイヤーハーネス |
CN201180062894.1A CN103282971B (zh) | 2010-12-27 | 2011-12-26 | 机动车用绝缘电线及机动车用线束 |
US13/885,542 US9111666B2 (en) | 2010-12-27 | 2011-12-26 | Automotive insulated wire, and automotive wiring harness |
DE112011104608.1T DE112011104608B4 (de) | 2010-12-27 | 2011-12-26 | Isoliertes Fahrzeugkabel und Fahrzeugkabelbaum |
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JP2010-290702 | 2010-12-27 | ||
JP2010290702 | 2010-12-27 |
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WO2012090921A1 true WO2012090921A1 (ja) | 2012-07-05 |
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US (1) | US9111666B2 (ja) |
JP (1) | JP5534035B2 (ja) |
CN (1) | CN103282971B (ja) |
DE (1) | DE112011104608B4 (ja) |
WO (1) | WO2012090921A1 (ja) |
Cited By (4)
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WO2013168525A1 (ja) * | 2012-05-11 | 2013-11-14 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線 |
WO2014196332A1 (ja) * | 2013-06-05 | 2014-12-11 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線ならびにワイヤーハーネス |
WO2014203701A1 (ja) * | 2013-06-19 | 2014-12-24 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線ならびにワイヤーハーネス |
WO2015199078A1 (ja) * | 2014-06-23 | 2015-12-30 | 古河電気工業株式会社 | 電線接続構造体の製造方法、及び電線接続構造体 |
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EP2940697B1 (en) * | 2012-12-28 | 2021-10-13 | Essex Furukawa Magnet Wire Japan Co., Ltd. | Insulated wire, electrical device, and method for producing insulated wire |
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JP2014234502A (ja) * | 2013-06-05 | 2014-12-15 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線ならびにワイヤーハーネス |
WO2014203701A1 (ja) * | 2013-06-19 | 2014-12-24 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線ならびにワイヤーハーネス |
JP2015005344A (ja) * | 2013-06-19 | 2015-01-08 | 株式会社オートネットワーク技術研究所 | 電線被覆材用樹脂組成物および絶縁電線ならびにワイヤーハーネス |
CN105264615A (zh) * | 2013-06-19 | 2016-01-20 | 株式会社自动网络技术研究所 | 电线包覆材料用树脂组合物及绝缘电线以及线束 |
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JPWO2015199078A1 (ja) * | 2014-06-23 | 2017-04-20 | 古河電気工業株式会社 | 電線接続構造体の製造方法、及び電線接続構造体 |
US9793617B2 (en) | 2014-06-23 | 2017-10-17 | Furukawa Electric Co., Ltd. | Electrical wire-connecting structure and method for manufacturing electrical wire-connecting structure |
Also Published As
Publication number | Publication date |
---|---|
JP5534035B2 (ja) | 2014-06-25 |
US20130233588A1 (en) | 2013-09-12 |
CN103282971B (zh) | 2015-09-02 |
CN103282971A (zh) | 2013-09-04 |
DE112011104608T5 (de) | 2013-10-10 |
DE112011104608B4 (de) | 2018-02-08 |
US9111666B2 (en) | 2015-08-18 |
JPWO2012090921A1 (ja) | 2014-06-05 |
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