KR102541344B1 - EPDM high voltage cable for electric vehicle - Google Patents

EPDM high voltage cable for electric vehicle Download PDF

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KR102541344B1
KR102541344B1 KR1020220034727A KR20220034727A KR102541344B1 KR 102541344 B1 KR102541344 B1 KR 102541344B1 KR 1020220034727 A KR1020220034727 A KR 1020220034727A KR 20220034727 A KR20220034727 A KR 20220034727A KR 102541344 B1 KR102541344 B1 KR 102541344B1
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epdm
voltage cable
insulator
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KR20220041064A (en
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최영천
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에코캡 주식회사
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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
    • H01B7/02—Disposition of insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • 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
    • H01B3/44—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 vinyl resins; acrylic resins
    • H01B3/441—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 vinyl resins; acrylic resins from alkenes
    • 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulated Conductors (AREA)
  • Organic Insulating Materials (AREA)

Abstract

본 발명은 동작전압 DC1500V이하 (AC 1000V이하)에서 사용되는 전기자동차용 고전압케이블의 도체를 감싸는 절연체의 재질로서 EPDM이 사용되고, 상기 고전압케이블은 ISO 16942-2의 시험방법에 의해 40N이하의 유연성을 만족하도록 하는 전기자동차용 EPDM 고압케이블에 관한 것이다.In the present invention, EPDM is used as an insulator material surrounding the conductor of a high-voltage cable for electric vehicles used at an operating voltage of DC 1500V or less (AC 1000V or less), and the high-voltage cable has a flexibility of 40N or less by the test method of ISO 16942-2. It relates to an EPDM high-voltage cable for electric vehicles that satisfies the

Description

전기자동차용 EPDM 고전압케이블{EPDM high voltage cable for electric vehicle}EPDM high voltage cable for electric vehicle {EPDM high voltage cable for electric vehicle}

본 발명은 동작전압 DC1500V이하 (AC 1000V이하)에서 사용되는 전기자동차용 고전압케이블의 도체를 감싸는 절연체의 재질로서 EPDM이 사용되고, 상기 고전압케이블은 ISO 16942-2의 시험방법에 의해 40N이하의 유연성을 만족하도록 하는 전기자동차용 EPDM 고압케이블에 관한 것이다.In the present invention, EPDM is used as an insulator material surrounding the conductor of a high-voltage cable for electric vehicles used at an operating voltage of DC 1500V or less (AC 1000V or less), and the high-voltage cable has a flexibility of 40N or less by the test method of ISO 16942-2. It relates to an EPDM high-voltage cable for electric vehicles that satisfies the

일반적으로, 자동차용 배터리 케이블은 전선의 기본 물성 이외에 자동차 엔진부에 위치하게 되므로, 고온, 오일, 진동, 좁은 공간 등의 물리적 또는 화학적 악조건에 노출되므로, 높은 내열성과 함께 높은 유연성이 요구되고 있다.In general, since automotive battery cables are located in an automobile engine in addition to the basic physical properties of electric wires, they are exposed to adverse physical or chemical conditions such as high temperature, oil, vibration, and narrow space, so high heat resistance and high flexibility are required.

특히, 최근의 자동차들 엔진룸은 자동차의 컴팩트화와 연료절감 효과를 얻기 위해서 엔진룸의 공간을 최소화하고 있으며, 많은 기능을 갖는 자동차의 특성상 더욱 많은 부품의 적재가 요구하고 있는 실정이다.In particular, the engine room of recent automobiles minimizes the space of the engine room in order to achieve compactness and fuel saving effect, and more parts are required to be loaded due to the nature of automobiles having many functions.

이러한 자동차 엔진룸의 효율을 위해 엔진 부품의 소형화 연구가 진행되고 있는 실정이지만, 이들 엔진 부품들은 구조상 소형화하는데 한계가 있는 실정이다.Although research on miniaturization of engine parts is being conducted for the efficiency of the engine room of such an automobile, there is a limit to the miniaturization of these engine parts due to their structure.

이에, 최근에는 엔진룸 내부에 필수적인 구성부품인 엔진 부위 전선의 기능을 향상시키면서 전선 장착의 효율성을 극대화하려는 노력이 계속되고 있다.Accordingly, in recent years, efforts have been made to maximize the efficiency of wire mounting while improving the function of wires in the engine area, which are essential components inside the engine room.

즉, 종래에는 낮은 경도의 PO 수지를 사용한 XLPO 등이 사용 되었지만, 최근에 요구되는 전선 장착 효율성을 만족하지 못하고, 일부 CV Line을 이용한 EPDM 전선이 사용되는 상황에 이르게 되었다.That is, in the past, XLPO using PO resin of low hardness was used, but it did not satisfy the wire mounting efficiency required recently, and EPDM wires using some CV lines were used.

따라서, XLPO와 생산공정은 동일하게 하되, EPDM의 높은 유연성을 갖는 조사가교 타입의 EPDM 조성물 및 이것에 의해 제조되는 케이블에 대한 제공이 요구되고 있다.Therefore, it is required to provide a radiation crosslinking type EPDM composition having the same production process as XLPO, but having high flexibility of EPDM and a cable manufactured by the same.

이와같은 기술과 관련되어 종래의 대한민국 공개 특허 제2018-13110호에 초고압 직류 전력케이블의 기술이 제시되고 있으며 그 구성은 도1에서와 같이, 전력케이블(200)이 복수의 소선이 연선되어 형성된 도체(210), 상기 도체를 감싸는 내부반도전층(212), 상기 내부반도전층(212)을 감싸는 절연층(214), 상기 절연층(214)을 감싸는 외부반도전층(216)을 포함하여, 상기 도체(210)를 따라 케이블 길이 방향으로만 전력을 전송하고, 케이블 반경 방향으로는 전류가 누설되지 않도록 하는 케이블 코어부를 구비한다.In relation to this technology, the technology of an ultra-high voltage DC power cable is proposed in the conventional Korean Patent Publication No. 2018-13110, and the configuration thereof is a conductor formed by twisting a plurality of strands of the power cable 200 as shown in FIG. 210, an inner semiconducting layer 212 surrounding the conductor, an insulating layer 214 surrounding the inner semiconducting layer 212, and an outer semiconducting layer 216 surrounding the insulating layer 214, A cable core portion is provided to transmit power only in the longitudinal direction of the cable along 210 and prevent leakage of current in the radial direction of the cable.

또한, 상기 도체(210)는 원형의 중심소선(210A)과 상기 원형 중심소선(210A)을 감싸도록 연선된 평각소선(210B)으로 이루어진 평각소선층(210C)을 구비하며, 상기 보호시스부는 금속 시스층(218)와 내부 시스(220)를 포함하고, 상기 절연층(214)은 절연 조성물은 가교제를 포함함으로써, 상기 절연층(214)은 압출시 또는 압출 후 별도의 가교 공정에 의해 가교 폴리올레핀(XLPO), 바람직하게는 가교 폴리에틸렌(XLPE)으로 이루어질 수 있다. In addition, the conductor 210 includes a flat wire layer 210C composed of a circular core wire 210A and a flat wire 210B twisted to surround the circular central wire 210A, and the protective sheath is made of metal. It includes a sheath layer 218 and an inner sheath 220, and the insulation composition of the insulation layer 214 includes a crosslinking agent, so that the insulation layer 214 is crosslinked polyolefin during extrusion or by a separate crosslinking process after extrusion. (XLPO), preferably cross-linked polyethylene (XLPE).

그러나, 상기와 같은 전력케이블은, 유연성이 부족하여 케이블의 장착이나 교환등에 작업성이 저하되는 단점이 있는 것이다.However, the power cable as described above has a disadvantage in that workability in attaching or exchanging the cable is deteriorated due to lack of flexibility.

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 전선 끝단에 커넥터가 연결되어있는 고압용 하네스케이블이 유연성을 갖도록 하여 교환 및 설치가 용이하도록 하는 전기자동차용 EPDM 고전압케이블을 제공한다.An object of the present invention to improve the conventional problems as described above is to provide an EPDM high voltage cable for electric vehicles in which a high voltage harness cable having a connector connected to an end of a wire has flexibility so that it can be easily replaced and installed.

그리고, 본 발명은 중량감소와 유연성을 높이면서 동일규격에서 전기적인 특성을 만족하도록 하는 전기자동차용 고전압케이블을 제공하도록 하는 전기자동차용 EPDM 고전압케이블을 제공한다.In addition, the present invention provides an EPDM high-voltage cable for an electric vehicle to provide a high-voltage cable for an electric vehicle that satisfies electrical characteristics in the same standard while reducing weight and increasing flexibility.

또한, 본 발명은 차폐 및 비차폐용 고전압케이블에 모두 적용할 수 있도록 하고, 싱글코어 케이블용 요구조건을 만족 하도록 하는 전기자동차용 EPDM 고전압케이블을 제공한다.In addition, the present invention provides an EPDM high-voltage cable for electric vehicles that can be applied to both shielded and unshielded high-voltage cables and satisfies the requirements for single-core cables.

본 발명은 상기 목적을 달성하기 위하여, 동작전압 DC1500V이하(AC 1000V이하)에서 사용되는 전기자동차 하네스용 고전압케이블의 도체를 감싸는 절연체의 재질로서 EPDM이 사용되고, In order to achieve the above object, the present invention uses EPDM as an insulator material surrounding the conductor of a high-voltage cable for an electric vehicle harness used at an operating voltage of DC 1500V or less (AC 1000V or less),

50SQ : 40N이하의 유연성을 만족하도록 하는 전기자동차용 EPDM 고압케이블을 제공한다.50SQ: Provides EPDM high-voltage cable for electric vehicles that satisfies the flexibility of 40N or less.

또한, 본 발명은 GM Code CU-R4EPDM-HV을 만족하도록 In addition, the present invention is to satisfy GM Code CU-R4EPDM-HV

EPR(Ethylene Propylene Rubber) 15~24중량%, POE(Polyolefine Elastomer) 수지 10~19중량%, EVA(Ethylene-Vinyl Acetate Copolymer) 10~19중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제 5~10중량%로 첨가되어 조성되고,EPR (Ethylene Propylene Rubber) 15-24 wt%, POE (Polyolefine Elastomer) resin 10-19 wt%, EVA (Ethylene-Vinyl Acetate Copolymer) 10-19 wt%, flame retardant 40-45 wt%, crosslinking accelerator 5-10 It is composed by adding 1 to 5% by weight, 1 to 5% by weight of crosslinking aid, 5 to 10% by weight of antioxidant, and 5 to 10% by weight of lubricant,

상기 난연제는, 표면이 실란으로 코팅되는 ATH 또는 실란 코팅되는 MDH중에서 선택되는 어느 하나가 사용되는 전기자동차용 EPDM 고압케이블을 제공한다.The flame retardant provides an EPDM high-voltage cable for electric vehicles in which any one selected from ATH whose surface is coated with silane or MDH coated with silane is used.

그리고, 본 발명은 GM Code CU-R4EPDM-HV을 만족하도록 And, the present invention is to satisfy GM Code CU-R4EPDM-HV

EPR(Ethylene Propylene Rubber) 10~15중량%, POE(Polyolefine Elastomer) 수지 20~30중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제5~10중량%로 첨가되어 조성되고,EPR (Ethylene Propylene Rubber) 10-15 wt%, POE (Polyolefine Elastomer) resin 20-30 wt%, flame retardant 40-45 wt%, cross-linking accelerator 5-10 wt%, cross-linking aid 1-5 wt%, antioxidant 5 It is composed by adding ~ 10% by weight and 5 to 10% by weight of lubricant,

상기 난연제는, 표면이 실란으로 코팅되는 ATH 또는 실란 코팅되는 MDH중에서 선택되는 어느 하나가 사용되는 전기자동차용 EPDM 고압케이블을 제공한다.The flame retardant provides an EPDM high-voltage cable for electric vehicles in which any one selected from ATH whose surface is coated with silane or MDH coated with silane is used.

계속하여, 본 발명의 EPR은, 에틸렌 N번과 프로필렌 N번이 반복하여 연결되는 중합결합구조의 고분자 수지로서 이루어진 전기자동차용 EPDM 고압케이블을 제공한다.Subsequently, the EPR of the present invention provides an EPDM high-voltage cable for electric vehicles made of a polymer resin having a polymeric bond structure in which ethylene N times and propylene times N times are repeatedly connected.

또한, 본 발명은, 도체의 외경측에 일체로 적층되는 EPDM의 절연체 적층구조로 이루어진 전기자동차용 EPDM 고압케이블을 제공한다.In addition, the present invention provides an EPDM high-voltage cable for electric vehicles consisting of an EPDM insulator laminated structure integrally laminated on the outer diameter side of the conductor.

그리고, 본 발명은, 도체의 외경측에 일체로 적층되는 EPDM의 절연체, 상기 절연체의 외경측에 적층되는 차폐층과 그 외측에 적층되는 EPDM의 외장피복 적층구조로 이루어진 전기자동차용 EPDM 고압케이블을 제공한다.In addition, the present invention is an EPDM high-voltage cable for electric vehicles composed of an EPDM insulator integrally laminated on the outer diameter side of the conductor, a shielding layer laminated on the outer diameter side of the insulator, and an EPDM outer sheath laminated structure laminated on the outer side of the insulator. to provide.

이상과 같이 본 발명에 의하면, 전선 끝단에 커넥터가 연결되어있는 고압용 하네스 케이블이 원하는 유연성을 갖도록 하여 교환 및 설치가 용이하고, 중량감소와 유연성을 높이면서 동일규격에서 전기적인 특성을 만족하는 효과가 있는 것이다.As described above, according to the present invention, the high-voltage harness cable to which the connector is connected to the end of the wire has the desired flexibility, so that it is easy to exchange and install, and the effect of satisfying electrical characteristics in the same standard while reducing weight and increasing flexibility there will be

또한, 본 발명은 차폐 및 비차폐용 고전압케이블에 모두 적용하고, 싱글코어 케이블용 요구조건을 만족하는 효과가 있는 것이다.In addition, the present invention is applied to both shielded and unshielded high voltage cables, and has an effect of satisfying the requirements for single core cables.

도1은 종래의 전력케이블을 도시한 외관도이다.
도2는 본 발명에 따른 고압케이블을 도시한 외관도이다.
도3은 본 발명의 다른 실시예에 따른 고압케이블을 도시한 외관도이다.1 is an external view showing a conventional power cable.
2 is an external view showing a high-voltage cable according to the present invention.
3 is an external view showing a high voltage cable according to another embodiment of the present invention.

이하, 첨부된 도면에 의거하여 본 발명의 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings.

도2는 본 발명에 따른 고압케이블을 도시한 외관도이고, 도3은 본 발명의 다른 실시예에 따른 고압케이블을 도시한 외관도이다.2 is an external view showing a high voltage cable according to the present invention, and FIG. 3 is an external view showing a high voltage cable according to another embodiment of the present invention.

본 발명의 고압케이블(100)은, 전기자동차의 동작전압 DC1500V이하(AC 1000V이하)에서 사용이 가능토록 제작된다.The high-tension cable 100 of the present invention is manufactured to be usable at an operating voltage of DC 1500V or less (AC 1000V or less) of an electric vehicle.

그리고, 상기 고압케이블(100)은, 도체(110)의 외측을 절연체(130)로 감싸도록 설치된다.In addition, the high voltage cable 100 is installed so as to surround the outside of the conductor 110 with an insulator 130.

이때, 상기 절연체(130)는, EPDM(Ethylene Propylene Diene Monomer)이 사용된다.At this time, as the insulator 130, EPDM (Ethylene Propylene Diene Monomer) is used.

또한, 본 발명의 고압케이블(100)은, ISO 16942-2의 테스트 방법에 의해 50SQ:40N이하의 유연성을 만족하도록 설치된다.In addition, the high voltage cable 100 of the present invention is installed to satisfy the flexibility of 50SQ:40N or less by the test method of ISO 16942-2.

더하여, 본 발명의 절연체(130)는, GM Code CU-R3EPDM-HV을 만족하도록 EPR(Ethylene Propylene Rubber) 15~24중량%, POE(Polyolefine Elastomer) 수지 10~19중량%, EVA(Ethylene-Vinyl Acetate Copolymer) 10~19중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제 5~10중량%로 첨가되어 조성된다.In addition, the insulator 130 of the present invention contains 15 to 24 wt% of EPR (Ethylene Propylene Rubber), 10 to 19 wt% of POE (Polyolefine Elastomer) resin, and Ethylene-Vinyl (EVA) to satisfy GM Code CU-R3EPDM-HV. Acetate Copolymer) 10 to 19% by weight, flame retardant 40 to 45% by weight, crosslinking accelerator 5 to 10% by weight, crosslinking aid 1 to 5% by weight, antioxidant 5 to 10% by weight, and lubricant 5 to 10% by weight. do.

이때, 상기 난연제는, 표면이 실란으로 코팅되는 ATH(Aluminium Trihydroxide), 실린코팅되는 MDH(Magnesium hydroxide)가 사용되어도 좋으며, 상기 절연체는 125℃에서 사용가능토록 된다.At this time, as the flame retardant, ATH (Aluminium Trihydroxide) whose surface is coated with silane or MDH (Magnesium hydroxide) whose surface is coated with silin may be used, and the insulator can be used at 125°C.

한편, 본 발명은 GM Code CU-R4EPDM-HV을 만족하도록 EPR(Ethylene Propylene Rubber) 10~15중량%, POE(Polyolefine Elastomer) 수지 20~30중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제5~10중량%로 첨가되어 조성된다.Meanwhile, the present invention contains 10 to 15 wt% of EPR (Ethylene Propylene Rubber), 20 to 30 wt% of POE (Polyolefine Elastomer) resin, 40 to 45 wt% of flame retardant, and 5 to 15 wt% of crosslinking accelerator to satisfy GM Code CU-R4EPDM-HV. It is composed by adding 10% by weight, 1 to 5% by weight of crosslinking aid, 5 to 10% by weight of antioxidant, and 5 to 10% by weight of lubricant.

상기 난연제는, 표면이 실란으로 코팅되는 ATH(Aluminium Trihydroxide), 실린코팅되는 MDH(Magnesium hydroxide)가 사용되어도 좋으며, 상기 절연체는 150℃에서 사용가능토록 된다.As the flame retardant, ATH (Aluminium Trihydroxide) whose surface is coated with silane or MDH (Magnesium hydroxide) whose surface is coated with silane may be used, and the insulator can be used at 150°C.

이때, 상기 GM Code CU-R3EPDM-HV 또는 GM Code CU-R4EPDM-HV Shield Type에서 적용되며, ISO Code는 온도에 상관없이 FHLR3G 또는 ISO Code FHLR3GC3G에서 동일하게 적용되도록 한다.At this time, the GM Code CU-R3EPDM-HV or GM Code CU-R4EPDM-HV Shield Type is applied, and the ISO Code is applied equally to FHLR3G or ISO Code FHLR3GC3G regardless of temperature.

계속하여, 상기 EPR은, 아래의 화학식 1에서와 같이 에틸렌 N번과 프로필렌 N번이 반복하여 연결되는 중합결합구조의 고분자 수지로서 이루어진다.Subsequently, the EPR is composed of a polymer resin having a polymeric bond structure in which ethylene N and propylene N are repeatedly connected as shown in Formula 1 below.

Figure 112022030183430-pat00001
Figure 112022030183430-pat00001

그리고, 상기 고압케이블(100)은, 도체(110)의 외경측에 일체로 적층되는 EPDM의 절연체(130), 상기 절연체의 외경측에 적층되는 차폐층(150)과 그 외측에 적층되는 EPDM의 외장피복인 시스층(170) 적층구조로 이루어져도 좋다.In addition, the high voltage cable 100 includes an EPDM insulator 130 integrally laminated on the outer diameter side of the conductor 110, a shielding layer 150 laminated on the outer diameter side of the insulator, and an EPDM laminated on the outer side of the insulator. It may be made of a laminated structure of the sheath layer 170, which is an exterior coating.

상기와 같은 구성으로 이루어진 본 발명의 제조방법을 설명한다.The manufacturing method of the present invention consisting of the above configuration will be described.

도2 및 도3에서와 같이 본 발명의 고압케이블(100)은, 전기자동차의 동작전압 DC1500V이하(AC 1000V이하)에서 사용이 가능토록 제작되면서 아래의 표1에서와 같이 고객사에서 필요로 하는 특성을 만족하게 되었다.As shown in FIGS. 2 and 3, the high voltage cable 100 of the present invention is manufactured to be used at an operating voltage of DC 1500V or less (AC 1000V or less) of an electric vehicle, and characteristics required by customer companies as shown in Table 1 below. has been satisfied.

Figure 112022030183430-pat00002
Figure 112022030183430-pat00002

그리고, 상기 고압케이블(100)은, 도체(110)의 외측을 절연체(130)로 감싸도록 설치된다.In addition, the high voltage cable 100 is installed so as to surround the outside of the conductor 110 with an insulator 130.

이때, 상기 절연체(130)는, EPDM(Ethylene Propylene Diene Monomer)이 사용된다.At this time, as the insulator 130, EPDM (Ethylene Propylene Diene Monomer) is used.

또한, 본 발명의 고압케이블(100)은, ISO 16942-2의 테스트 방법에 의해 50SQ:40N이하의 유연성을 만족하도록 설치된다.In addition, the high voltage cable 100 of the present invention is installed to satisfy the flexibility of 50SQ:40N or less by the test method of ISO 16942-2.

더하여, 동일한 테스트 방법에 의해 70SQ:70N이하의 유연성을 만족하도록 된다.In addition, the flexibility of 70SQ:70N or less is satisfied by the same test method.

즉, 본 발명의 실시 예에 따른 조사가교 EPDM 조성물로서 제조된 고전압케이블의 경우, 아래의 표2에서와 같이 종래의 케이블에 비하여 유연 성이 75% 정도 향상됨을 확인할 수 있었다.That is, in the case of the high-voltage cable manufactured with the irradiation crosslinking EPDM composition according to the embodiment of the present invention, as shown in Table 2 below, it was confirmed that the flexibility was improved by about 75% compared to the conventional cable.

구분division XLPOXLPO EPDMEPDM 대비prepare 유연성(N)Flexibility (N) 160.57N160.57N 37.76N37.76N 75%(증가)75% (increase)

더하여, 본 발명의 절연체(130)는, GM Code CU-R4EPDM-HV을 만족하도록 EPR(Ethylene Propylene Rubber) 15~29중량%, POE(Polyolefine Elastomer) 수지 10~19중량%, EVA(Ethylene-Vinyl Acetate Copolymer) 10~19중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제 5~10중량%가 첨가되는 조성으로 125℃급에서 사용되는 절연체 조성물의 제작이 가능하다.In addition, the insulator 130 of the present invention contains 15 to 29% by weight of EPR (Ethylene Propylene Rubber), 10 to 19% by weight of Polyolefin Elastomer (POE) resin, and Ethylene-Vinyl (EVA) to satisfy GM Code CU-R4EPDM-HV. Acetate Copolymer) 10 to 19 wt%, flame retardant 40 to 45 wt%, crosslinking accelerator 5 to 10 wt%, crosslinking aid 1 to 5 wt%, antioxidant 5 to 10 wt%, lubricant 5 to 10 wt% As a result, it is possible to manufacture an insulator composition used in the 125 ° C class.

한편, 본 발명은 GM Code CU-R4EPDM-HV을 만족하도록 EPR(Ethylene Propylene Rubber) 10~15중량%, POE(Polyolefine Elastomer) 수지 20~30중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5중량%, 산화방지제 5~10중량%, 활제5~10중량%가 각각 첨가되는 조성으로 150℃급에서 사용되는 절연체 조성물의 제작이 가능하다.Meanwhile, the present invention contains 10 to 15 wt% of EPR (Ethylene Propylene Rubber), 20 to 30 wt% of POE (Polyolefine Elastomer) resin, 40 to 45 wt% of flame retardant, and 5 to 15 wt% of crosslinking accelerator to satisfy GM Code CU-R4EPDM-HV. 10% by weight, 1 to 5% by weight of a crosslinking aid, 5 to 10% by weight of an antioxidant, and 5 to 10% by weight of a lubricant, respectively, make it possible to manufacture an insulator composition used in the 150 ° C class.

이때, 상기 난연제와 실리콘수지의 첨가량 조절을 통하여 상승된 사용온도에서 사용이 가능토록 되었다.At this time, it is possible to use the flame retardant and the silicone resin at an elevated operating temperature through adjustment of the addition amount.

또한, 상기와 같이 절연체(130)로 사용되는 EPDM 컴파운드 혼합물의 구현을 위하여 반복적인 실험을 통해 고객사에서 만족하는 특성을 갖는 각 성분의 배합비를 도출하였다. In addition, in order to implement the EPDM compound mixture used as the insulator 130 as described above, a mixing ratio of each component having characteristics satisfactory to the customer company was derived through repeated experiments.

계속하여, 본 발명에서 사용되는 EPR은, 에틸렌 N번과 프로필렌 N번이 반복하여 연결되는 중합결합구조의 고분자 수지로서 별도의 ENB 추가없이 가교가 가능토록 된다.Subsequently, the EPR used in the present invention is a polymer resin having a polymeric bond structure in which ethylene N and propylene N are repeatedly connected, and crosslinking is possible without additional ENB addition.

그리고, 상기 고압케이블(100)은, 도체(110)의 외경측에 일체로 적층되는 EPDM의 절연체(130), 상기 절연체의 외경측에 적층되는 차폐층(150)과 그 외측에 적층되는 EPDM의 외장피복인 시스층(170) 적층구조로 이루어져도 좋으며, 상기 시스층과 절연체 모두가 EPDM조성물로 이루어져 유연성을 더욱 높이게 된다.In addition, the high voltage cable 100 includes an EPDM insulator 130 integrally laminated on the outer diameter side of the conductor 110, a shielding layer 150 laminated on the outer diameter side of the insulator, and an EPDM laminated on the outer side of the insulator. It may be made of a laminated structure of the sheath layer 170, which is an exterior coating, and both the sheath layer and the insulator are made of an EPDM composition to further enhance flexibility.

이때, 상기 고압케이블(100)은, 별도의 차폐층과 시스층 없이 사용하여도 좋다.At this time, the high voltage cable 100 may be used without a separate shielding layer and sheath layer.

본 발명이 속하는 기술분야의 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features.

그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해하여야만 한다. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100...고압케이블 110...도체
130...절연체 150...차폐층
170...시스층100 ... high voltage cable 110 ... conductor
130 ... insulator 150 ... shielding layer
170 ... cis layer

Claims (3)

동작전압 DC1500V이하(AC 1000V이하)에서 사용되는 전기자동차용 고전압케이블의 도체를 감싸는 절연체의 재질로서 EPDM이 사용되고,
상기 고전압케이블은 ISO 16942-2의 시험방법에 의해 50SQ:40N이하의 유연성을 만족하도록 하며,
상기 절연체는, GM Code CU-R3EPDM-HV을 만족하면서 사용온도 125℃를 만족하는 EPR 15~24중량%, POE 10~19중량%, EVA 10~19중량%, 난연제 40~45중량%, 가교촉진제 5~10중량%, 가교 조제 1~5 중량%, 산화방지제 5~10 중량%, 활제 5~10중량%가 혼합되며,
상기 난연제는, 표면이 실란으로 코팅되는 ATH 또는 실란 코팅되는 MDH중에서 선택되는 어느 하나가 사용되고,
상기 EPR은, 에틸렌 N번과 프로필렌 N번이 반복하여 연결되는 중합결합구조의 고분자 수지로서 이루어지며,
상기 고전압케이블은, 도체의 외경측에 EPDM재질의 절연체와 상기 절연체의 외경측에 차폐층 및 상기 차폐층의 외경측에 외장피복을 형성하는 EPDM재질의 시스층이 순차로 적층되는 구성으로 이루어진 전기자동차용 EPDM 고압케이블.

EPDM is used as an insulator material that surrounds the conductors of high-voltage cables for electric vehicles used at operating voltages of DC1500V or less (AC 1000V or less).
The high voltage cable satisfies the flexibility of 50SQ:40N or less by the test method of ISO 16942-2,
The insulator satisfies GM Code CU-R3EPDM-HV and contains 15 to 24 wt% of EPR, 10 to 19 wt% of POE, 10 to 19 wt% of EVA, 40 to 45 wt% of flame retardant, and crosslinking 5 to 10% by weight of an accelerator, 1 to 5% by weight of a crosslinking aid, 5 to 10% by weight of an antioxidant, and 5 to 10% by weight of a lubricant are mixed,
As the flame retardant, any one selected from ATH whose surface is coated with silane or MDH whose surface is coated with silane is used,
The EPR is made of a polymer resin of a polymeric bond structure in which ethylene N and propylene N are repeatedly connected,
The high-voltage cable is composed of an insulator made of EPDM on the outer diameter side of the conductor, a shielding layer on the outer diameter side of the insulator, and a sheath layer of EPDM material forming an outer sheath on the outer diameter side of the shield layer. Electricity EPDM high voltage cable for automobiles.

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