KR200329850Y1 - Control board for Electric Leakage Breaker - Google Patents

Control board for Electric Leakage Breaker Download PDF

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Publication number
KR200329850Y1
KR200329850Y1 KR20-2003-0023575U KR20030023575U KR200329850Y1 KR 200329850 Y1 KR200329850 Y1 KR 200329850Y1 KR 20030023575 U KR20030023575 U KR 20030023575U KR 200329850 Y1 KR200329850 Y1 KR 200329850Y1
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KR
South Korea
Prior art keywords
printed circuit
circuit board
control board
current transformer
breaker
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KR20-2003-0023575U
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Korean (ko)
Inventor
박성대
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상도전기통신 주식회사
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Priority to KR20-2003-0023575U priority Critical patent/KR200329850Y1/en
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Publication of KR200329850Y1 publication Critical patent/KR200329850Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/28Current transformers

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  • Breakers (AREA)

Abstract

본 고안은 이상전류를 감지하여 개폐기구를 작동시킴으로써 전원을 차단하는 누전차단기용 제어기판을 개시한다.The present invention discloses a control board for an earth leakage breaker that cuts off power by detecting an abnormal current and operating a switching mechanism.

이러한 본 고안의 목적은 누전차단기에 설치되는 제어기판의 크기를 축소시킴과 아울러 설치 및 탈거가 용이하도록 함으로써, 제어기판의 보수가 용이하고 누전차단기의 뇌임펄스 내전압, 부동작 특성을 개선함에 있다.The purpose of the present invention is to reduce the size of the control plate installed in the earth leakage breaker and to facilitate the installation and removal, to facilitate the repair of the control plate and to improve the brain impulse withstand voltage and non-operating characteristics of the earth leakage breaker.

이를 위하여 본 고안은 차단기의 베이스 내부에 설치되며 트립코일과 영상변류기를 비롯한 각종 전자부품이 설치된 인쇄회로기판에 전원단자와 개폐기구부를 연결하는 연동연선이 배열되는 요홈을 형성하고, 상기 요홈의 전방에 위치되는 영상변류기가 인쇄회로기판에서 분리되어 구성됨을 특징으로 한다.To this end, the present invention is formed in the base of the circuit breaker and forms a groove in which a linking line connecting the power terminal and the opening and closing mechanism is arranged on a printed circuit board on which various electronic components including a trip coil and a video current transformer are installed, and the front of the groove It is characterized in that the image current transformer is located in the separation from the printed circuit board.

이에 따라 본 고안은 제어기판의 크기를 축소할 수 있게 되어 누전차단기의 베이스 저면에 통공이 필요없게 되며, 이에 따라 전기적 절연을 위한 절연층을 형성하여 누전차단기의 뇌임펄스 내전압, 부동작 특성을 개선할 수 있고, 인쇄회로기판의 요홈에서 리드선을 분리하고 영상변류기의 콘넥터를 인쇄회로기판의 콘넥터에서 분리함으로써 제어기판이 완전 탈거되므로 제어기판의 보수 교체가 용이하고, 비용이 절감되는 등의 유용한 효과가 있다.Accordingly, the present invention can reduce the size of the control board so that the hole of the base of the ground fault circuit breaker is not required, thereby forming an insulation layer for electrical insulation, thereby improving the brain impulse withstand voltage and non-operating characteristics of the ground fault circuit breaker. The control board is completely removed by separating the lead wire from the recess of the printed circuit board and disconnecting the connector of the video current transformer from the connector of the printed circuit board. Therefore, it is easy to repair and replace the control board and reduce the cost. There is.

Description

누전차단기용 제어기판{Control board for Electric Leakage Breaker}Control board for electric leakage breaker {Control board for Electric Leakage Breaker}

본 고안은 누전차단기용 제어기판에 관한 것으로, 특히 이상전류를 감지하여 개폐기구를 작동시킴으로써 전원을 차단하는 누전차단기용 제어기판에 관한 것이다.The present invention relates to a control board for a ground fault circuit breaker, and more particularly, to a control board for a ground fault circuit breaker that cuts power by operating an open / close mechanism by detecting an abnormal current.

주지하는 바와 같이 누전차단기는 이상전류 발생시 전원의 공급을 차단하여 전기적인 안전사고의 발생을 예방하는 것으로, 이러한 누전차단기의 구성을 첨부한 도면 도 1 내지 도 3으로 도시하였다.As is well known, the earth leakage breaker is to prevent the occurrence of an electrical safety accident by cutting off the power supply when an abnormal current occurs, and the configuration of the earth leakage breaker is shown in FIGS. 1 to 3.

이에 의하면 누전차단기(100)는 베이스(101)에 핸들(103)과 개폐기구부(104) 및 제어기판(105)이 설치됨과 아울러, 상기 베이스(101)의 일측 단부에 전원전선과 접속되는 전원단자(110)가 설치되고 타측 단부에는 부하측 전선과 접속되는 부하단자(111)가 설치되며, 이러한 베이스(101)에 커버(102)가 결합된 것으로, 상기 제어기판(105)은 인쇄회로기판(106)에 트립코일(108)과 영상변류기(ZCT; 109)를 비롯한 각종 전자부품이 설치된 것이며, 상기 영상변류기(109)는 인쇄회로기판(106)의 하측에 형성된 연동연선공(107) 전방에 고정 설치되고, 전원단자(110)와 개폐기구부(104)를 연결하는 연동연선(112)이 영상변류기(109)의 중앙을 삽입 관통된 것이다.Accordingly, the ground fault circuit breaker 100 is provided with a handle 103, an opening / closing mechanism 104, and a control plate 105 on the base 101, and a power terminal connected to a power line at one end of the base 101. The load terminal 111 is installed at the other end and is connected to the load-side wire at the other end. The cover 102 is coupled to the base 101, and the control board 105 is a printed circuit board 106. ) Is equipped with various electronic components including a trip coil 108 and an image current transformer (ZCT) 109, and the image current transformer 109 is fixed to the front of an interlocking twisted line hole 107 formed under the printed circuit board 106. It is installed, the interlocking twisted line 112 connecting the power supply terminal 110 and the opening and closing mechanism 104 is inserted through the center of the image current transformer 109.

이러한 누전차단기(100)는 공급되는 전원에 이상전류가 발생되면 이를 감지하여 개폐기구부(104)가 작동되도록 함으로써, 전원이 차단되도록 하는 것이다.The earth leakage circuit breaker 100 detects an abnormal current generated in the supplied power to allow the open / close mechanism 104 to operate to cut off the power supply.

그러나 상기 제어기판(105)은 영상변류기(109)가 인쇄회로기판(106)의 통공(106) 전방에 고정되고, 그 중앙으로 연동연선(112)이 삽입 관통된 것이므로, 상기 제어기판(105)을 보수하기 위하여 누전차단기(100)에서 탈거할 경우 연동연선(112)에 의하여 탈거가 불가능하여 상기 연동연선(112)을 절단한 후 탈거하여야 되며, 이에 따라 제어기판(105)의 보수 교체작업이 불편하고 비용이 증가되는 문제가 있다.However, the control board 105 is the image current transformer 109 is fixed to the front of the through hole 106 of the printed circuit board 106, since the interlocked twisted line 112 is inserted through the center, the control board 105 When removing from the earth leakage breaker 100 in order to repair, it is impossible to remove by the interlocked twisted pair 112, and after removing the interlocked twisted pair 112, the repair and replacement of the control board 105 is performed accordingly. There is a problem of inconvenience and increased cost.

또한, 제어기판(105)이 핸들(103)의 측부에 수직으로 설치되는 것이나, 영상변류기(109)가 인쇄회로기판(106)에 고정되어 있으므로, 상기 영상변류기(109)를 비롯한 다른 부품들 간의 설치 간격을 좁힐 수 없어 인쇄회로기판(106)의 크기를 축소시키지 못한다.In addition, since the control board 105 is installed vertically on the side of the handle 103, or because the image current transformer 109 is fixed to the printed circuit board 106, between the other parts including the image current transformer 109 Installation intervals cannot be narrowed, and the size of the printed circuit board 106 cannot be reduced.

따라서 누전차단기(100)의 협소한 내부 공간에 제어기판(105)을 설치하기 위하여 몸체(101)의 저면에 통공(113)을 형성하고, 상기 통공(113)으로 제어기판(105)의 단부를 삽입 설치하고 있으나, 이러한 누전차단기(100)를 금속 패널에 설치하여 사용하므로, 상기 통공(113)을 통하여 전류가 누설되어 단선, 단락, 감전 등의 사고가 우려되는 등의 문제가 있다.Therefore, in order to install the control board 105 in a narrow internal space of the circuit breaker 100, a through hole 113 is formed on the bottom surface of the body 101, and the end of the control plate 105 is formed by the through hole 113. Although inserted and installed, the circuit breaker 100 is installed and used in a metal panel, such that current may leak through the through hole 113, resulting in an accident such as disconnection, short circuit, or electric shock.

본 고안의 목적은 상기와 같은 종래의 문제를 감안하여 누전차단기에 설치되는 제어기판의 크기를 축소시킴과 아울러 설치 및 탈거가 용이하도록 함으로써, 제어기판의 보수가 용이하고 누전차단기의 뇌임펄스 내전압, 부동작 특성을 개선하는 누전차단기용 제어기판을 제공함에 있다.The object of the present invention is to reduce the size of the control panel to be installed in the earth leakage breaker, and to facilitate the installation and removal, in view of the conventional problems as described above, the repair of the control board is easy and the brain impulse withstand voltage of the earth leakage breaker, An object of the present invention is to provide a control board for an earth leakage breaker for improving non-operating characteristics.

도 1은 종래 누전차단기를 도시한 분해 사시도.1 is an exploded perspective view showing a conventional earth leakage breaker;

도 2는 종래 누전차단기의 구성도.2 is a block diagram of a conventional earth leakage breaker.

도 3은 종래 누전차단기의 저면도.Figure 3 is a bottom view of a conventional earth leakage breaker.

도 4는 본 고안에 의한 누전차단기를 도시한 분해 사시도.Figure 4 is an exploded perspective view showing a circuit breaker according to the present invention.

도 5는 본 고안에 의한 누전차단기용 제어기판의 분해 사시도.5 is an exploded perspective view of a control panel for an earth leakage breaker according to the present invention;

도 6은 본 고안에 의한 누전차단기의 부분 절개 구성도.Figure 6 is a partial cutaway configuration of the circuit breaker according to the present invention.

도 7은 본 고안에 의한 누전차단기의 저면도.Figure 7 is a bottom view of the earth leakage breaker according to the present invention.

도 8은 본 고안에 의한 누전차단기용 제어기판의 다른 실시예를 도시한 분해 사시도.Figure 8 is an exploded perspective view showing another embodiment of the circuit board for a circuit breaker according to the present invention.

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

10 : 제어기판 11 : 인쇄회로기판 12 : 요홈10: control board 11: printed circuit board 12: groove

13 : 트립코일 14 : 영상변류기(Z.C.T) 15 : 차단기13: trip coil 14: video current transformer (Z.C.T) 15: circuit breaker

16 : 베이스 17 : 커버 18 : 핸들16: Base 17: Cover 18: Handle

19 : 개폐기구부 20 : 전원단자 21 : 부하단자19: opening and closing mechanism 20: power supply terminal 21: load terminal

22: 리드선 23,24 : 콘넥터 25 : 연동연선22: lead wire 23, 24: connector 25: interlocked stranded wire

이러한 목적을 달성하기 위하여 본 고안은 차단기의 베이스 내부에 설치되며 트립코일과 영상변류기를 비롯한 각종 전자부품이 설치된 인쇄회로기판에 전원단자와 개폐기구부를 연결하는 연동연선이 배열되는 요홈을 형성하고, 상기 요홈의 전방에 위치되는 영상변류기가 인쇄회로기판에서 분리되어 구성되는 누전차단기용 제어기판을 제안한다.In order to achieve this purpose, the present invention is formed inside the base of the circuit breaker and forms a groove in which an interlocking twisted line connecting the power terminal and the opening and closing mechanism is arranged on a printed circuit board on which various electronic components including trip coils and video current transformers are installed. The present invention proposes a control board for an earth leakage circuit breaker configured to be separated from a printed circuit board.

이에 따라 본 고안은 누전차단기에서 제어기판을 용이하게 탈거 교체할 수 있고, 누전차단기의 베이스에 통공이 필요없게 되어 절연성능력이 향상된다.Accordingly, the present invention can easily remove and replace the control plate in the ground fault circuit breaker, and the base of the ground fault circuit breaker does not need a through-hole, thereby improving the insulating capability.

상기와 같은 본 고안의 구성 및 작용을 첨부한 도면에 의거 상세히 설명하면 다음과 같다.When described in detail based on the accompanying drawings the configuration and operation of the present invention as follows.

도 4는 본 고안에 의한 누전차단기를 도시한 분해 사시도이고, 도 5는 본 고안에 의한 누전차단기용 제어기판의 분해 사시도이며, 도 6은 본 고안에 의한 누전차단기의 부분 절개 구성도, 도 7은 본 고안에 의한 누전차단기의 저면도이다.Figure 4 is an exploded perspective view showing a ground fault circuit breaker according to the present invention, Figure 5 is an exploded perspective view of a control plate for a ground fault circuit breaker according to the present invention, Figure 6 is a partial cut-away configuration of the circuit breaker according to the present invention, Figure 7 Is a bottom view of an earth leakage breaker according to the present invention.

본 고안은 베이스(16)에 핸들(18), 개폐기구부(19), 제어기판(10), 전원단자(20), 부하단자(21) 등을 설치하고, 그 상측에 커버(17)를 체결하여 차단기(15)를 구비하는 것으로, 상기 제어기판(10)은 인쇄회로기판(11)의 하단에요홈(12)을 형성하고, 상기 인쇄회로기판(11)에 트립코일(13)을 비롯한 각종 전자부품을 설치한다.In the present invention, the handle 18, the opening and closing mechanism 19, the control panel 10, the power supply terminal 20, the load terminal 21, etc. are installed on the base 16, and the cover 17 is fastened to the upper side thereof. By having a circuit breaker 15, the control board 10 forms a groove 12 in the lower end of the printed circuit board 11, the trip coil 13, including a trip coil 13 in the printed circuit board 11 Install the electronic components.

아울러 상기 요홈(12)의 전방에 영상변류기(14)를 위치시키되, 상기 영상변류기(14)를 인쇄회로기판(11)에서 분리시키고, 전원단자(20)와 개폐기구부(19)를 연결하는 연동연선(22)이 영상변류기(14)의 중앙을 삽입 관통하여 인쇄회로기판(11)의 요홈(12)에 삽입 배열되도록 하며, 영상변류기(14)와 인쇄회로기판(11)을 리드선(25)으로 연결 접속한다.In addition, the image current transformer 14 is positioned in front of the recess 12, and the image current transformer 14 is separated from the printed circuit board 11, and interlocks to connect the power supply terminal 20 and the opening and closing mechanism 19. The stranded wire 22 is inserted through the center of the image current transformer 14 to be inserted into the groove 12 of the printed circuit board 11, and the image current transformer 14 and the printed circuit board 11 are connected to the lead wire 25. Connect with

이와 같이 구성된 본 고안은 전원단자(20)와 개폐기구부(19)를 연결하는 연동연선(22)이 영상변류기(14)에 삽입 관통되고 인쇄회로기판(11)의 요홈(12)에 삽입 배열된 것이므로, 제어기판(10)의 보수를 위하여 누전차단기(15)에서 제어기판(10)을 탈거 및 교체할 경우, 베이스(16)에 수직으로 설치된 제어기판(10)을 상측으로 들어올리면 연동연선(22)이 요홈(12)에서 빠져나오게 된다.According to the present invention configured as described above, an interlocking twisted line 22 connecting the power supply terminal 20 and the opening / closing mechanism part 19 is inserted into the image current transformer 14 and inserted into the groove 12 of the printed circuit board 11. Therefore, when removing and replacing the control board 10 in the ground fault circuit breaker 15 for the repair of the control board 10, by lifting the control board 10 installed vertically on the base 16 to the upper side of the interlocking line ( 22) will come out of the groove (12).

이러한 상태에서 인쇄회로기판(11)에 납땝 접속된 리드선(25)의 결합상태를 해제시키면 영상변류기(14)가 인쇄회로기판(11)에서 완전 분리되는 것이어서, 제어기판(10)만을 탈거할 수 있으며, 따라서 연동연선(22)을 절단하지 않고 제어기판(10)의 교체가 용이하게 되는 것이다.In this state, when the lead wire 25 connected to the printed circuit board 11 is released, the image current transformer 14 is completely separated from the printed circuit board 11, so that only the control board 10 can be removed. Therefore, it is easy to replace the control plate 10 without cutting the linkage wire 22.

또한, 영상변류기(14)가 인쇄회로기판(11)에서 분리된 것이므로, 상기 영상변류기(14)의 위치를 조절할 수 있어 제어기판(10)의 크기를 축소시킬 수 있고, 누전차단기(15)에서 제어기판(10)의 탈거가 용이하게 된다.In addition, since the image current transformer 14 is separated from the printed circuit board 11, the position of the image current transformer 14 may be adjusted to reduce the size of the control board 10, and the leakage circuit breaker 15 may be used. Removal of the control board 10 is facilitated.

즉, 영상변류기(14)를 인쇄회로기판(11)의 요홈(12) 전방에서 상측으로 조금올린 상태로 위치시키면 영상변류기(14)와 다른 전자부품들 간의 간격이 좁아지므로 제어기판(10)의 크기를 줄일 수 있게 되는 것이다.That is, when the image current transformer 14 is positioned slightly upward from the front of the recess 12 of the printed circuit board 11, the gap between the image current transformer 14 and other electronic components is narrowed, so that The size can be reduced.

따라서 첨부한 도면 도 7로 도시한 바와 같이 베이스(11)의 저면에 통공을 형성하지 않아도 제어기판(10)이 용이하게 설치되는 것이어서, 누전차단기(15)저렴한 비용으로 용이하게 제작할 수 있고, 아울러 베이스(11)의 저면에 절연층을 형성할 수 있게 되어 누전차단기(15)의 절연성능력 향상에 따른 뇌임펄스 내전압, 부동작 특성을 개선할 수 있는 것이다.Therefore, as shown in FIG. 7, the control board 10 is easily installed even without forming a hole in the bottom surface of the base 11, so that the earth leakage breaker 15 can be easily manufactured at low cost. Since the insulating layer can be formed on the bottom surface of the base 11, the impulse withstand voltage and the non-operating characteristics can be improved according to the improvement of the insulating capability of the ground fault circuit breaker 15.

한편, 첨부한 도면 도 8은 본 고안에 의한 누전차단기용 제어기판의 다른 실시예를 도시한 것으로, 영상변류기(14)와 인쇄회로기판(11)을 접속하는 리드선(25)의 단부에 콘넥터(24)를 설치하여 된 것이다.On the other hand, Figure 8 is a view showing another embodiment of the circuit board for the circuit breaker according to the present invention, the connector (c) at the end of the lead wire 25 for connecting the current transformer 14 and the printed circuit board 11 24) was installed.

이에 따라 영상변류기(14)와 인쇄회로기판(11)이 리드선(25)과 콘넥터(23,24)에 의하여 양호한 접속이 이루어지고, 아울러 제어기판(10)을 탈거할 때에는 영상변류기(14)의 리드선(25)에 설치된 콘넥터(24)와 인쇄회로기판(11)에 설치된 콘넥터(23)를 서로 분리시키면 영상변류기(14)가 인쇄회로기판(11)에서 완전 분리되므로 누전차단기(15)에서 제어기판(10)의 탈거를 더욱 용이하게 할 수 있는 것이다.Accordingly, the image current transformer 14 and the printed circuit board 11 are connected to each other by the lead wires 25 and the connectors 23 and 24, and when the control panel 10 is removed, the image current transformer 14 of the image current transformer 14 is removed. When the connector 24 installed on the lead wire 25 and the connector 23 installed on the printed circuit board 11 are separated from each other, the image current transformer 14 is completely separated from the printed circuit board 11, so that the control is performed in the ground fault circuit breaker 15. The removal of the substrate 10 can be made easier.

상기한 바와 같이 본 고안은 제어기판의 인쇄회로기판에 요홈을 형성하고, 상기 요홈의 전방에 위치되는 영상변류기를 인쇄회로기판에서 분리시켜 된 것으로,트립코일 등 기타 부품과 영상변류기가 함께 내장되는 공간을 효과적으로 활용하여 제어기판의 크기를 축소할 수 있게 되어 누전차단기의 베이스 저면에 통공이 필요없게 되며, 이에 따라 전기적 절연을 위한 절연층을 형성하여 절연성능력을 향상시킬 수 있게 되어 누전차단기의 뇌임펄스 내전압,부동작 특성을 개선할 수 있다.As described above, the present invention forms a recess in the printed circuit board of the control board, and separates the image current transformer located at the front of the recess from the printed circuit board. The video coil is embedded with other components such as trip coils. By effectively utilizing the space, the size of the control board can be reduced, so that no hole is required in the bottom of the base of the earth leakage breaker. Accordingly, an insulating layer for electrical insulation can be formed to improve the insulation capability, thereby improving the brain of the earth leakage breaker. Impulse withstand voltage and nonoperating characteristics can be improved.

또한, 인쇄회로기판의 요홈에서 연동연선을 분리하고 영상변류기의 콘넥터를 인쇄회로기판의 콘넥터에서 분리함으로써 제어기판이 완전 탈거되므로 상기 제어기판의 보수 교체가 용이하고, 이에 따른 비용이 절감되는 등의 유용한 효과가 있다.In addition, since the control board is completely removed by disconnecting the twisted-pair cable from the recess of the printed circuit board and the connector of the image current transformer from the connector of the printed circuit board, it is easy to repair and replace the control board, thereby reducing costs. It has a useful effect.

Claims (3)

차단기(15)의 베이스(16) 내부에 설치되며 인쇄회로기판(11)에 트립코일(13)과 영상변류기(14)를 비롯한 각종 전자부품이 설치된 공지의 것에 있어서,In the well-known thing installed in the base 16 of the circuit breaker 15, and various electronic components including the trip coil 13 and the image current transformer 14 in the printed circuit board 11, 인쇄회로기판(11)에 형성되며 전원단자(20)와 개폐기구부(19)를 연결하는 연동연선(22)이 배열되는 요홈(12)과, 요홈(12)의 전방에 위치되는 영상변류기(14)가 인쇄회로기판(11)에서 분리됨을 특징으로 하는 특징으로 하는 누전차단기용 제어기판.The groove 12 is formed on the printed circuit board 11 and the linkage line 22 connecting the power supply terminal 20 and the opening and closing mechanism 19 is arranged, and the image current transformer 14 located in front of the groove 12. ) Is a control board for a circuit breaker, characterized in that separated from the printed circuit board (11). 제 1 항에 있어서,The method of claim 1, 요홈(12)은 인쇄회로기판(11)의 하단에 형성됨을 특징으로 하는 누전차단기용 제어기판.The recess 12 is a circuit board for a circuit breaker, characterized in that formed on the bottom of the printed circuit board (11). 제 1 항에 있어서,The method of claim 1, 영상변류기(14)를 인쇄회로기판(11)에 접속시키기 위한 리드선(25)의 단부에 콘넥터(24)를 설치하고, 인쇄회로기판(11)에 상기 콘넥터(24)가 접속되는 콘넥터(23)를 설치하여 됨을 특징으로 하는 누전차단기용 제어기판.A connector 23 is provided at the end of the lead wire 25 for connecting the image current transformer 14 to the printed circuit board 11, and the connector 23 is connected to the printed circuit board 11. Control board for earth leakage breaker, characterized in that the installation.
KR20-2003-0023575U 2003-07-22 2003-07-22 Control board for Electric Leakage Breaker KR200329850Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100918110B1 (en) 2009-01-23 2009-09-22 주식회사 대륙 The trip circuit assembly of earth leakage circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100918110B1 (en) 2009-01-23 2009-09-22 주식회사 대륙 The trip circuit assembly of earth leakage circuit breaker

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