KR20030069405A - The shielding structure for epoxy insulator - Google Patents

The shielding structure for epoxy insulator Download PDF

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Publication number
KR20030069405A
KR20030069405A KR1020020009024A KR20020009024A KR20030069405A KR 20030069405 A KR20030069405 A KR 20030069405A KR 1020020009024 A KR1020020009024 A KR 1020020009024A KR 20020009024 A KR20020009024 A KR 20020009024A KR 20030069405 A KR20030069405 A KR 20030069405A
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KR
South Korea
Prior art keywords
epoxy resin
resin insulator
paint layer
insulator
constant thickness
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KR1020020009024A
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Korean (ko)
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김지환
하영길
최수걸
박현득
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엘지전선 주식회사
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Priority to KR1020020009024A priority Critical patent/KR20030069405A/en
Publication of KR20030069405A publication Critical patent/KR20030069405A/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/50Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/56Insulating bodies
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/40Insulators 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 epoxy resins

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)

Abstract

PURPOSE: An external shielding structure is provided to prevent a needle electrode from being generated at a gap at an interface between an epoxy resin insulator and an external shielding layer. CONSTITUTION: An external shielding structure includes an insulation paint layer(2) of a constant thickness and a conduction paint layer(3) of a constant thickness. The insulation paint layer(2) of a constant thickness is formed on an outer surface of an epoxy resin insulator(1), and the conduction paint layer(3) of a constant thickness is formed on a surface of the insulation paint layer(2) of a constant thickness.

Description

에폭시 수지 절연체의 외부 차폐 구조{The shielding structure for epoxy insulator}The shielding structure for epoxy insulator

본 발명은 에폭시 수지와 무기질 충전재를 혼합하고 주형되어 성형되는 절연체에 있어서, 에폭시 수지 절연체의 연삭 가공된 외부 표면에 절연 도료층이 형성되고 상기 절연 도료층의 표면에 도전성 도료층이 형성되어 에폭시 수지 절연체와 외부 차폐층 사이의 계면에서 침전극의 발생을 방지하여 에폭시 수지 절연체의 전기적 물성이 저하되지 않도록 하는 외부 차폐 구조에 관한 것이다.The present invention relates to an insulator in which an epoxy resin and an inorganic filler are mixed and molded and molded, wherein an insulating paint layer is formed on a ground outer surface of the epoxy resin insulator, and a conductive paint layer is formed on the surface of the insulating paint layer, thereby forming an epoxy resin. The present invention relates to an external shielding structure that prevents occurrence of a settling electrode at an interface between an insulator and an outer shielding layer so that electrical properties of the epoxy resin insulator are not lowered.

에폭시 수지는 전기적, 기계적 물성이 우수하여 전력기기의 절연 부품의 소재로 많이 사용된다. 이러한 에폭시 수지의 열팽창 수축률, 기계적 강도, 내열성 등의 물성을 향상하고 제조 비용을 절감하기 위하여 에폭시 수지에 일정한 함량의 무기질 충전재를 혼합하고 금형에 주형하여 에폭시 수지 절연체를 성형한다. 성형된 에폭시 수지 절연체의 외부 표면의 바리를 제거하고 치수 변형 등에 대처하기 위해 에폭시 수지 절연체의 외부 표면을 연삭 가공하고 상기 연삭면에 도전성 도료를 도포하여 외부 차폐층을 형성한다.Epoxy resin is widely used as insulation material of power equipment because of its excellent electrical and mechanical properties. In order to improve the physical properties such as thermal expansion shrinkage, mechanical strength, heat resistance, and the like of the epoxy resin, and to reduce manufacturing costs, an epoxy resin insulator is formed by mixing a certain amount of an inorganic filler and molding a mold. In order to remove the variance of the outer surface of the molded epoxy resin insulator, and to cope with dimensional deformation, etc., the outer surface of the epoxy resin insulator is ground and the conductive paint is applied to the grinding surface to form an outer shielding layer.

이러한 종래의 에폭시 수지 절연체는 연삭 가공시 무기질 충전재가 연삭면으로부터 떨어져나가서 무수한 공극이 형성되며, 이러한 연삭면에 도전성 도료를 도포하면 상기 공극에 상기 도전성 도료가 침투하여 침전극이 형성된다. 에폭시 수지 절연체와 외부 차폐층의 계면 사이의 공극에서 이러한 침전극이 형성되면 상기 침전극에 전기적 스트레스가 집중되어 에폭시 수지 절연체의 전기적 물성이 대폭 저하되고 이것은 에폭시 수지 절연체의 절연 파괴로까지 이어진다는 문제점이 있다.In the conventional epoxy resin insulator, the inorganic filler is separated from the grinding surface during grinding, and numerous voids are formed. When the conductive paint is applied to the grinding surface, the conductive paint penetrates into the voids to form a precipitation electrode. When these precipitation electrodes are formed in the gap between the epoxy resin insulator and the interface of the outer shielding layer, electrical stress is concentrated on the precipitation electrodes, which greatly reduces the electrical properties of the epoxy resin insulator, which leads to dielectric breakdown of the epoxy resin insulator. There is this.

본 발명의 목적은 에폭시 수지 절연체의 연삭 가공된 외부 표면에 형성되는 일정한 두께의 절연 도료층과 상기 절연 도료층의 표면에 형성되는 일정한 두께의 도전성 도료층으로 구성되어 상기 에폭시 수지 절연체와 외부 차폐층 사이의 계면 사이의 공극에서 침전극의 발생을 방지하는 에폭시 수지 절연체의 외부 차폐 구조를 제공하는데 있다.An object of the present invention is composed of a constant thickness insulating paint layer formed on the ground outer surface of the epoxy resin insulator and a conductive thickness layer of a constant thickness formed on the surface of the insulating paint layer and the epoxy resin insulator and the outer shield layer It is to provide an outer shield structure of the epoxy resin insulator to prevent the occurrence of precipitated electrodes in the gap between the interface between.

도 1은 종래의 절연체의 외부 차폐 구조도1 is a structural diagram of the outer shield of a conventional insulator

도 2는 본 발명의 절연체의 외부 차폐 구조도2 is an outer shield structure diagram of an insulator of the present invention;

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 절연체1: insulator

2 : 절연 도료층2: insulation paint layer

3 : 도전성 도료층3: conductive paint layer

4 : 침전극4: precipitation electrode

5 : 무기질 충전재5: inorganic filler

본 발명의 에폭시 수지 절연체의 외부 차폐 구조는 에폭시 수지 절연체(1)의 연삭 가공된 외부 표면에 형성되는 일정한 두께의 절연 도료층(2)과 상기 절연 도료층의 표면에 형성되는 일정한 두께의 도전성 도료층(3)으로 구성되는 특징이 있다.The outer shield structure of the epoxy resin insulator of the present invention is a constant thickness insulating paint layer (2) formed on the ground surface of the epoxy resin insulator (1) and a conductive paint of constant thickness formed on the surface of the insulating paint layer. It is characterized by a layer 3.

도면과 실시예를 참조하여 본 발명을 상세하게 설명한다.The present invention will be described in detail with reference to the drawings and examples.

도 1은 종래의 에폭시 수지 절연체의 외부 차폐 구조를 도시한 것이고, 도 2는 본 발명에 의한 에폭시 수지 절연체의 외부 차폐 구조를 도시한 것이다.1 shows an outer shield structure of a conventional epoxy resin insulator, and FIG. 2 shows an outer shield structure of an epoxy resin insulator according to the present invention.

에폭시 수지와 무기질 충전재(5)가 혼합되고 상기 혼합물이 금형에 주형되고 경화되고 탈형되어 에폭시 수지 절연체(1)가 성형된다. 상기와 같이 성형된 에폭시 수지 절연체(1)의 외부 표면의 바리를 제거하고 치수 변형 등에 대처하기 위하여 에폭시 수지 절연체(1)의 외부 표면이 연삭 가공된다. 에폭시 수지 절연체(1)의 외부 표면의 연삭 가공시 무기질 충전재(5)가 연삭면으로부터 떨어져나가서 상기 에폭시 수지 절연체(1)의 외부 표면에 무수한 공극이 형성된다.The epoxy resin and the inorganic filler 5 are mixed and the mixture is cast into a mold, cured and demolded to form an epoxy resin insulator 1. The outer surface of the epoxy resin insulator 1 is ground to remove the variance of the outer surface of the epoxy resin insulator 1 molded as described above and to cope with dimensional deformation. In the grinding of the outer surface of the epoxy resin insulator 1, the inorganic filler 5 is separated from the grinding surface, and numerous voids are formed on the outer surface of the epoxy resin insulator 1.

상기와 같이 연삭 가공된 에폭시 수지 절연체(1)의 외부 표면에 절연성이 탁월한 절연 도료가 도포되고, 도포된 절연 도료가 열처리에 의해 경화되어 일정한 두께의 절연 도료층(2)이 형성된다. 절연 도료가 도포될 때 에폭시 수지 절연체(1)의 외부 표면의 공극으로 상기 절연 도료가 침투하여 경화되므로서 상기 공극이 메워진다.An insulating paint excellent in insulation is applied to the outer surface of the epoxy resin insulator 1 ground as described above, and the applied insulating paint is cured by heat treatment to form an insulating paint layer 2 having a constant thickness. When the insulating paint is applied, the pores of the insulating paint penetrate into the pores of the outer surface of the epoxy resin insulator 1 to cure and fill the voids.

상기와 같이 형성된 절연 도료층(2)의 표면에 도전성 도료가 도포되고, 도포된 도전성 도료가 열처리에 의해 경화되어 일정한 두께의 도전성 도료층(3)이 형성되어, 에폭시 수지 절연체(1)의 외부 표면에 외부 차폐층이 구성된다. 상기 도전성 도료층(3)의 이면에 절연 도료층(2)이 형성되어 에폭시 수지 절연체(1)의 공극으로 도전성 도료가 침투할 수 없으므로 상기 공극에서 도전성 도료로 인한 침전극(4)이 발생되지 않는다. 상기 외부 차폐층이 구성된 에폭시 수지 절연체(1)는 침전극(4)이 발생되지 않아서 통전시 전기적 스트레스가 에폭시 수지 절연체(1)의 전체에 고르게 분산되므로 에폭시 수지 절연체(1)의 전기적 물성이 저하되지 않는다.The conductive paint is applied to the surface of the insulating paint layer 2 formed as described above, the applied conductive paint is cured by heat treatment to form a conductive paint layer 3 having a constant thickness, and the outside of the epoxy resin insulator 1 An outer shield layer is constructed on the surface. Since the insulating paint layer 2 is formed on the back surface of the conductive paint layer 3 so that the conductive paint cannot penetrate into the pores of the epoxy resin insulator 1, no precipitation electrode 4 due to the conductive paint is generated in the pores. Do not. In the epoxy resin insulator 1 having the outer shielding layer, since no precipitation electrode 4 is generated, electrical stress is uniformly distributed throughout the epoxy resin insulator 1 when electricity is supplied, thereby deteriorating electrical properties of the epoxy resin insulator 1. It doesn't work.

에폭시 수지와 무기질 충전재를 혼합하고 주형되어 성형되는 에폭시 수지 절연체(1)의 외부 표면을 연삭 가공한다. 연삭 가공된 에폭시 수지 절연체(1)의 외부 표면에 절연 도료를 도포되고, 도포된 절연 도료를 열처리로 경화하여 일정한 두께의 절연 도료층(2)을 형성한다. 상기 절연 도료층(2)의 표면에 도전성 도료를 도포하고, 도포된 도전성 도료를 열처리로 경화하여 일정한 두께의 도전성 도료층(3)을 형성하므로서 에폭시 수지 절연체(1)의 외부 표면에 외부 차폐층을 구성한다. 상기 외부 차폐층이 구성된 에폭시 수지 절연체(1)를 전력기기에 절연 부품으로 장착한다. 상기 전력기기의 통전시 전기적 스트레스가 에폭시 수지 절연체(1)의 전체에 고르게 분산되므로 에폭시 수지 절연체(1)의 전기적 물성이 저하되지 않으며, 따라서 에폭시 수지 절연체(1)의 절연 파괴가 발생하지 않는다.The outer surface of the epoxy resin insulator 1 to be molded and molded by mixing the epoxy resin and the inorganic filler is ground. An insulating paint is applied to the outer surface of the ground epoxy resin insulator 1, and the applied insulating paint is cured by heat treatment to form an insulating paint layer 2 having a constant thickness. An outer shielding layer is formed on the outer surface of the epoxy resin insulator 1 by applying a conductive paint on the surface of the insulating paint layer 2 and curing the applied conductive paint by heat treatment to form a conductive paint layer 3 having a constant thickness. Configure The epoxy resin insulator 1 having the outer shielding layer is mounted on the power device as an insulating component. Since the electrical stress during the energization of the power device is evenly distributed throughout the epoxy resin insulator 1, the electrical properties of the epoxy resin insulator 1 do not deteriorate, and thus, the dielectric breakdown of the epoxy resin insulator 1 does not occur.

본 발명에 의한 에폭시 수지 절연체의 외부 차폐 구조는 에폭시 수지 절연체의 연삭 가공된 외부 표면에 형성되는 절연 도료층과 상기 절연 도료층의 표면에형성되는 도전성 도료층으로 구성되어 상기 에폭시 수지 절연체와 외부 차폐층의 계면 사이에서 발생되는 침전극을 방지하여 에폭시 수지 절연체의 전기적 물성의 저하와 이에 따른 절연 파괴를 방지하는 효과가 있다.The outer shielding structure of the epoxy resin insulator according to the present invention is composed of an insulating paint layer formed on the ground outer surface of the epoxy resin insulator and a conductive paint layer formed on the surface of the insulating paint layer, the epoxy resin insulator and the outer shield By preventing the precipitation poles generated between the interface of the layer there is an effect of preventing the electrical properties of the epoxy resin insulator deterioration and thereby the dielectric breakdown.

Claims (1)

에폭시 수지와 무기질 충전재를 혼합하여 성형된 절연체에 있어서,Insulator formed by mixing epoxy resin and inorganic filler, 에폭시 수지 절연체(1)의 연삭 가공된 외부 표면에 형성되는 일정한 두께의 절연 도료층(2)과, 상기 절연 도료층의 표면에 형성되는 일정한 두께의 도전성 도료층(3)으로 구성되는 것을 특징으로 하는 에폭시 수지 절연체의 외부 차폐 구조.It is composed of an insulating paint layer (2) having a constant thickness formed on the ground surface of the epoxy resin insulator (1) and a conductive paint layer (3) having a constant thickness formed on the surface of the insulating paint layer. External shield structure of epoxy resin insulator.
KR1020020009024A 2002-02-20 2002-02-20 The shielding structure for epoxy insulator KR20030069405A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02206198A (en) * 1989-02-06 1990-08-15 Somar Corp Manufacture of multilayered wiring board
JPH0364111A (en) * 1989-08-01 1991-03-19 Mitsubishi Electric Corp Memory device and digital signal processor using the memory device
KR100263861B1 (en) * 1998-04-29 2000-08-16 김순택 Polylayer firm for electromagnetic shielding
KR200277401Y1 (en) * 1999-06-08 2002-06-05 하재목 Emi shielding sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02206198A (en) * 1989-02-06 1990-08-15 Somar Corp Manufacture of multilayered wiring board
JPH0364111A (en) * 1989-08-01 1991-03-19 Mitsubishi Electric Corp Memory device and digital signal processor using the memory device
KR100263861B1 (en) * 1998-04-29 2000-08-16 김순택 Polylayer firm for electromagnetic shielding
KR200277401Y1 (en) * 1999-06-08 2002-06-05 하재목 Emi shielding sheet

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