WO2015147522A1 - Molded case circuit breaker - Google Patents

Molded case circuit breaker Download PDF

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Publication number
WO2015147522A1
WO2015147522A1 PCT/KR2015/002878 KR2015002878W WO2015147522A1 WO 2015147522 A1 WO2015147522 A1 WO 2015147522A1 KR 2015002878 W KR2015002878 W KR 2015002878W WO 2015147522 A1 WO2015147522 A1 WO 2015147522A1
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WO
WIPO (PCT)
Prior art keywords
arc
housing
circuit breaker
relief member
stator
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Application number
PCT/KR2015/002878
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French (fr)
Korean (ko)
Inventor
김덕중
이성진
안병수
Original Assignee
현대중공업 주식회사
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Publication of WO2015147522A1 publication Critical patent/WO2015147522A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the present invention relates to a circuit breaker, and more particularly, by using an arc damping member to relax the arc ejected through the arc extinguishing portion and then discharge it to the outside, it is possible to stably discharge the molten material and the ionizing gas generated during the interruption short circuit It relates to a circuit breaker that can prevent the occurrence of an accident.
  • a circuit breaker is an electric device that protects a load and a line by manually or automatically blocking a line when an abnormality such as an overload and a short circuit occurs.
  • Conventional wiring circuit breakers include a main body, a terminal portion connecting the power supply side and a load side, an opening and closing mechanism for mechanically contacting the fixed contactor and the movable contactor, and an abnormal current such as overcurrent, instantaneous current, or short circuit current at the power supply side. And a trip unit for detecting the occurrence of an accident current to operate the opening and closing mechanism.
  • the conventional circuit breaker may cause a case in which the peripheral device is not normally operated by an arc ejected through the arc extinguishing unit, so that a short circuit accident may occur.
  • An object of the present invention by using the arc relief member installed on one side or both sides of the housing to relax the arc ejected through the arc extinguishing section and then discharge it to the outside, it is possible to stably discharge the molten material and ionization gas generated during the blocking short circuit To provide a circuit breaker that can prevent the occurrence of an accident.
  • Another object of the present invention is to provide a circuit breaker that can easily replace the end of the arc relief member by applying the arc relief member to be coupled and detachable.
  • the circuit breaker according to the present invention includes a housing, a stator installed in the housing and making a connection between a power supply side and a load side, a mover installed in the housing and driven to open a contact and a contact with the stator, and installed in the housing. And a tripping part for extinguishing an arc generated when opening a contact, and a trip part installed in the housing to detect an overcurrent or a short circuit current at the power supply side to induce a tripping operation of the mechanism part.
  • the housing On one side or both sides of the housing, It is characterized in that it comprises an arc relaxation member which is spaced apart above the connection end side of the stator connected to the load side, to relax the arc ejected through the arc extinguishing portion by a contact method.
  • one side or both sides of the housing are horizontally connected to the connecting end of the stator at a lower portion, and a through hole in which the arc relief member is installed at an upper portion thereof is horizontally formed.
  • the arc relief member is preferably installed in a vertical plate shape in a state of blocking the upper portion of the through hole.
  • the arc relief member is preferably one side or both sides of the housing can be coupled or separated.
  • the arc mitigating member is preferably a porous metal having a plurality of bubbles formed on the surface and inside.
  • the arc relief member may be provided with a plurality of heat radiation fins on one surface facing the outside of the through hole.
  • the arc mitigating member may be used as the alveolar-type metal in which the surface and the bubbles inside are not independently connected to each other.
  • the arc mitigating member may use an open cell metal in which the surface and the bubbles inside.
  • the arc relief member may use a foamed aluminum.
  • the present invention by using the arc relief member installed on one side or both sides of the housing to mitigate the arc ejected through the extinguishing portion and then discharge it to the outside, it is possible to stably discharge the molten material and ionization gas generated at the time of interruption accident It has the effect of preventing occurrence.
  • the arc relief member to be coupled and detachable, it has an effect that can easily replace the end of the arc relief member.
  • FIG. 1 is a cross-sectional view illustrating a circuit breaker according to the present invention.
  • Figure 2 is a perspective view for showing a state in which the cover and the arc relief member separated in the circuit breaker for the invention.
  • FIG 3 is a view for showing the bubble of the arc relaxation member in the circuit breaker according to the present invention.
  • Figure 4 is a perspective view for showing a state in which the heat radiation fins are installed on one surface of the arc relief member in the circuit breaker for the present invention.
  • FIG. 1 is a cross-sectional view illustrating a circuit breaker according to the present invention
  • FIG. 2 is a perspective view illustrating a state in which a cover and an arc relief member are separated from the circuit breaker according to the present invention.
  • Figure 3 is a view for showing the bubbles of the arc relaxation member in the circuit breaker according to the present invention
  • Figure 4 is a perspective view for showing a state in which the heat radiation fins are installed on one surface of the arc relief member in the circuit breaker for the invention. .
  • the wiring breaker according to the present invention includes a housing 10, a stator 20, a movable element 30, a extinguishing portion 40, a tripping portion 50, An arc relief member 100 is included.
  • the housing 10 has a stator 20, a mover 30, a extinguishing portion 40, a tripping portion 50, and an arc relief member 100 installed therein.
  • the housing 10 is a lower case for forming a space that is open to the upper, and the upper case is coupled to the upper end of the lower case, the operating hole is formed so that the lever 51 to be described later to be exposed to the outside It may be provided.
  • one or both sides of the housing 10 are horizontally penetrated through the through-hole 11a in which the connecting end 21 of the stator 20 is horizontally installed at the lower portion.
  • one or both sides of the housing 10 may be provided with a cover 11 that can be coupled or separated.
  • the through hole 11a may be horizontally formed through the cover 11, and the through hole 11a may be formed in plurality along the width of the cover 11.
  • the arc relief member 100 to be described later is installed vertically.
  • connection end portion 21 of the stator 20 horizontally installed inside the through hole 11a may be exposed to the outside through the through hole 11a.
  • the stator 20 is installed in the housing 10 to form a connection between the power supply side and the load side, and is fixedly installed at an inner lower end of the housing 10.
  • stator 20 is formed of a conductor so that current can be induced to flow inside.
  • a fixed contact point is brazed at the upper end of one side of the stator 20 to make a contact with the mover 30 to be described later.
  • the mover 30 is installed in the housing 10 and driven so that the stator 20 and the contact point are opened.
  • the movable shaft 30 is formed to protrude from one end of the rotating shaft, the rotating shaft is rotatably installed on the inner wall surface of the housing (10).
  • the movable contact is brazed at one end of the mover 30 so as to make contact with the fixed contact of the stator 20 described above.
  • the extinguishing part 40 is installed in the housing 10, and extinguishes the arc which arises at the time of contact opening.
  • the extinguishing portion 40 may be provided with a plurality of metal grid 41 having a ferromagnetic property, the coupling plate 42 for fixing the grid 41 integrally.
  • the trip unit 50 is installed in the housing 10 to detect an overcurrent or a short circuit current on the power supply side to induce a tripping operation of the mechanism unit.
  • the trip part 50 is provided with a lever 51 rotatably installed in the upper case, and an opening and closing part (not shown) that interlocks with the lever 51.
  • the arc relief member 100 is for quickly discharging the arc ejected through the arc extinguishing portion 40 and then to the outside.
  • the arc relief member 100 is installed perpendicular to the upper portion of the through hole (11a) formed on one side or both sides of the housing (10).
  • the arc relief member 100 is spaced apart above the connection end portion 21 side of the stator 20 is connected to the power supply side and the load side.
  • the arc relief member 100 relaxes the arc ejected through the extinguishing portion 40 by the contact method.
  • the arc relief member 100 as described above may be installed in a vertical rectangular plate shape in a state of blocking the upper portion of the through hole (11a).
  • the arc relief member 100 may be applied in various shapes to conform to the shape of the through hole (11a).
  • the arc relief member 100 may be applied to be coupled or separated from one side or both sides of the housing 10.
  • the arc relief member 100 may use a porous metal having a plurality of bubbles formed on the surface and inside.
  • Metallic foam refers to a porous metal having tens of thousands of bubbles inside a metal material.
  • the arc relaxation member 100 may use a closed alveolar metal that is present independently of the surface and the bubbles inside and not connected to each other.
  • the arc mitigating member 100 may use an open cell metal in which the bubbles of the surface and the inside are connected to each other.
  • the arc relaxation member 100 has a plurality of bubbles are formed on the surface and the inside, the arc ejected through the above-described arc (40) may be introduced into the bubble.
  • the arc relief member 100 may be further provided with a plurality of heat radiation fins 120 on one surface facing the outside of the through-hole (11a).
  • the heat dissipation fins 120 play a role of dissipating heat generated in the arc relaxation member 100 to relax the arc to the outside.
  • the present invention by using the arc relief member 100 installed on one side or both sides of the housing 10 to relax the arc ejected through the extinguishing portion 40 can be discharged to the outside.
  • connection end 30 mover

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Abstract

A molded case circuit breaker, according to the present invention, comprises: a housing: a stator which is provided within the housing so as to connect to a power source side and a load side; an actuator which is provided within the housing so as to come in contact with the stator and is driven such that the contact is parted; an arc extinguishing unit which is provided within the housing so as to extinguish an arc generated during the contact parting; and a trip unit which is provided within the housing so as to sense an overcurrent or a short-circuit current on the power source side, and which induces a trip operation of a mechanical unit, wherein one side or both sides of the housing is or are provided with an arc reducing member which is spaced from the upper part of a connecting end portion side of the stator connected with the power source side and the load side, and which reduces the arc discharged through the arc extinguishing unit by a contact method.

Description

배선용 차단기Circuit breaker
본 발명은 배선용 차단기에 관한 것으로, 더욱 상세하게는 아크 완화부재를 이용해 소호부를 통해 분출되는 아크를 완화시킨 후 외부로 배출시킴으로써, 차단시 발생하는 용융물질 및 이온화 가스를 안정적으로 배출시킬 수 있어 단락사고의 발생을 방지할 수 있는 배선용 차단기에 관한 것이다.The present invention relates to a circuit breaker, and more particularly, by using an arc damping member to relax the arc ejected through the arc extinguishing portion and then discharge it to the outside, it is possible to stably discharge the molten material and the ionizing gas generated during the interruption short circuit It relates to a circuit breaker that can prevent the occurrence of an accident.
일반적으로, 배선용 차단기는 선로의 과부하 및 단락 등의 이상 발생시 선로를 수동 또는 자동으로 차단하여 부하 및 선로를 보호하는 전기기기이다.In general, a circuit breaker is an electric device that protects a load and a line by manually or automatically blocking a line when an abnormality such as an overload and a short circuit occurs.
종래의 배선용 차단기는, 본체와, 전원측과 부하측을 연결하는 단자부와, 기구적으로 고정접촉자와 가동접촉자의 접촉이 이루어지도록 개폐시키는 개폐기구와, 전원측에서 과전류나 순시전류 또는 단락전류 등의 이상전류 및 사고전류의 발생을 검출하여 개폐기구가 동작되도록 하는 트립부가 구성된다.Conventional wiring circuit breakers include a main body, a terminal portion connecting the power supply side and a load side, an opening and closing mechanism for mechanically contacting the fixed contactor and the movable contactor, and an abnormal current such as overcurrent, instantaneous current, or short circuit current at the power supply side. And a trip unit for detecting the occurrence of an accident current to operate the opening and closing mechanism.
그런데, 종래의 배선용 차단기는 차단시 소호부를 통해 분출되는 아크에 의해 주변 장치가 정상적으로 작동되지 않는 경우가 발생하고, 이에 의해 단락사고가 발생할 염려가 있었다.However, the conventional circuit breaker may cause a case in which the peripheral device is not normally operated by an arc ejected through the arc extinguishing unit, so that a short circuit accident may occur.
본 발명과 관련된 선행 문헌으로는 대한민국 등록특허 제10-0643049호(2006년 10월 31일)가 있으며, 상기 선행 문헌에는 배선용 차단기가 개시되어 있다.Prior art related to the present invention is Korean Patent No. 10-0643049 (October 31, 2006), the prior art discloses a circuit breaker.
본 발명의 목적은 하우징의 일측 또는 양측에 설치한 아크 완화부재를 이용해 소호부를 통해 분출되는 아크를 완화시킨 후 외부로 배출시킴으로써, 차단시 발생하는 용융물질 및 이온화 가스를 안정적으로 배출시킬 수 있어 단락사고의 발생을 방지할 수 있는 배선용 차단기를 제공하는데 있다.An object of the present invention by using the arc relief member installed on one side or both sides of the housing to relax the arc ejected through the arc extinguishing section and then discharge it to the outside, it is possible to stably discharge the molten material and ionization gas generated during the blocking short circuit To provide a circuit breaker that can prevent the occurrence of an accident.
또한, 본 발명의 다른 목적은 아크 완화부재를 결합 및 분리 가능하도록 적용함으로써, 수명이 다한 아크 완화부재를 용이하게 교체할 수 있는 배선용 차단기를 제공하는데 있다.In addition, another object of the present invention is to provide a circuit breaker that can easily replace the end of the arc relief member by applying the arc relief member to be coupled and detachable.
본 발명에 따른 배선용 차단기는, 하우징과, 상기 하우징 내에 설치되어 전원측과 부하측의 연결을 이루는 고정자와, 상기 하우징 내에 설치되어 상기 고정자와 접점 및 접점이 개리되도록 구동되는 가동자와, 상기 하우징 내에 설치되어 접점 개리시 발생하는 아크를 소호시키는 소호부 및, 상기 하우징 내에 설치되어 전원측에서 과전류 또는 단락전류를 감지하여 기구부의 트립동작을 유도하는 트립부를 포함하며, 상기 하우징의 일측 또는 양측에는, 전원측과 부하측과 연결되는 상기 고정자의 연결단부측 상방에 이격 설치되어, 상기 소호부를 통해 분출되는 아크를 접촉 방식에 의해 완화시키는 아크 완화부재를 포함하는 것을 특징으로 한다.The circuit breaker according to the present invention includes a housing, a stator installed in the housing and making a connection between a power supply side and a load side, a mover installed in the housing and driven to open a contact and a contact with the stator, and installed in the housing. And a tripping part for extinguishing an arc generated when opening a contact, and a trip part installed in the housing to detect an overcurrent or a short circuit current at the power supply side to induce a tripping operation of the mechanism part. On one side or both sides of the housing, It is characterized in that it comprises an arc relaxation member which is spaced apart above the connection end side of the stator connected to the load side, to relax the arc ejected through the arc extinguishing portion by a contact method.
여기서, 상기 하우징의 일측 또는 양측에는 상기 고정자의 연결단부가 하부에 수평하게 설치되며, 상기 아크 완화부재가 상부에 설치되는 관통홀이 수평으로 관통형성되는 것이 바람직하다.Here, it is preferable that one side or both sides of the housing are horizontally connected to the connecting end of the stator at a lower portion, and a through hole in which the arc relief member is installed at an upper portion thereof is horizontally formed.
또한, 상기 아크 완화부재는 상기 관통홀의 상부를 차단하는 상태로 수직한 판재 형상으로 설치되는 것이 바람직하다.In addition, the arc relief member is preferably installed in a vertical plate shape in a state of blocking the upper portion of the through hole.
또한, 상기 아크 완화부재는 상기 하우징의 일측 또는 양측에 결합 또는 분리 가능한 것이 바람직하다.In addition, the arc relief member is preferably one side or both sides of the housing can be coupled or separated.
또한, 상기 아크 완화부재는 표면과 내부에 다수의 기포가 형성된 다공질 금속인 것이 바람직하다.In addition, the arc mitigating member is preferably a porous metal having a plurality of bubbles formed on the surface and inside.
또한, 상기 아크 완화부재는 상기 관통홀의 외측을 향하는 일면에 다수의 방열핀이 설치될 수 있다.In addition, the arc relief member may be provided with a plurality of heat radiation fins on one surface facing the outside of the through hole.
또한, 상기 아크 완화부재는 표면과 내부의 기포가 서로 연결되지 않고 독립적으로 존재하는 폐포형 금속을 사용할 수 있다.In addition, the arc mitigating member may be used as the alveolar-type metal in which the surface and the bubbles inside are not independently connected to each other.
또한, 상기 아크 완화부재는 표면과 내부의 기포가 서로 연결되는 개포형 금속을 사용할 수도 있다.In addition, the arc mitigating member may use an open cell metal in which the surface and the bubbles inside.
또한, 상기 아크 완화부재는 발포 알루미늄을 사용할 수 있다.In addition, the arc relief member may use a foamed aluminum.
본 발명은 하우징의 일측 또는 양측에 설치한 아크 완화부재를 이용해 소호부를 통해 분출되는 아크를 완화시킨 후 외부로 배출시킴으로써, 차단시 발생하는 용융물질 및 이온화 가스를 안정적으로 배출시킬 수 있어 단락사고의 발생을 방지할 수 있는 효과를 갖는다.The present invention by using the arc relief member installed on one side or both sides of the housing to mitigate the arc ejected through the extinguishing portion and then discharge it to the outside, it is possible to stably discharge the molten material and ionization gas generated at the time of interruption accident It has the effect of preventing occurrence.
또한, 아크 완화부재를 결합 및 분리 가능하도록 적용함으로써, 수명이 다한 아크 완화부재를 용이하게 교체할 수 있는 효과를 갖는다.In addition, by applying the arc relief member to be coupled and detachable, it has an effect that can easily replace the end of the arc relief member.
도 1은 본 발명에 따른 배선용 차단기를 보여주기 위한 단면도이다.1 is a cross-sectional view illustrating a circuit breaker according to the present invention.
도 2는 본 발명에 따른 배선용 차단기에서 커버와 아크 완화부재를 분리시킨 상태를 보여주기 위한 사시도이다.Figure 2 is a perspective view for showing a state in which the cover and the arc relief member separated in the circuit breaker for the invention.
도 3은 본 발명에 따른 배선용 차단기에서 아크 완화부재의 기포를 보여주기 위한 도면이다.3 is a view for showing the bubble of the arc relaxation member in the circuit breaker according to the present invention.
도 4는 본 발명에 따른 배선용 차단기에서 아크 완화부재의 일면에 방열핀들이 설치된 상태를 보여주기 위한 사시도이다.Figure 4 is a perspective view for showing a state in which the heat radiation fins are installed on one surface of the arc relief member in the circuit breaker for the present invention.
이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 이점 및 특징, 그리고 그것을 달성하는 방법은 첨부된 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다.Advantages and features of the present invention, and a method of achieving the same will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings.
그러나 본 발명은 이하에 개시되는 실시예들에 의해 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.However, the present invention is not limited by the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.
또한, 본 발명을 설명함에 있어 관련된 공지 기술 등이 본 발명의 요지를 흐리게 할 수 있다고 판단되는 경우 그에 관한 자세한 설명은 생략하기로 한다.In addition, in the following description of the present invention, if it is determined that related related technologies and the like may obscure the gist of the present invention, detailed description thereof will be omitted.
도 1은 본 발명에 따른 배선용 차단기를 보여주기 위한 단면도이고, 도 2는 본 발명에 따른 배선용 차단기에서 커버와 아크 완화부재를 분리시킨 상태를 보여주기 위한 사시도이다.1 is a cross-sectional view illustrating a circuit breaker according to the present invention, and FIG. 2 is a perspective view illustrating a state in which a cover and an arc relief member are separated from the circuit breaker according to the present invention.
그리고, 도 3은 본 발명에 따른 배선용 차단기에서 아크 완화부재의 기포를 보여주기 위한 도면이며, 도 4는 본 발명에 따른 배선용 차단기에서 아크 완화부재의 일면에 방열핀들이 설치된 상태를 보여주기 위한 사시도이다.And, Figure 3 is a view for showing the bubbles of the arc relaxation member in the circuit breaker according to the present invention, Figure 4 is a perspective view for showing a state in which the heat radiation fins are installed on one surface of the arc relief member in the circuit breaker for the invention. .
도 1 내지 도 4를 참조로 하면, 본 발명에 따른 배선용 차단기는 하우징(10)과, 고정자(20)와, 가동자(30)와, 소호부(40)와, 트립부(50) 및, 아크 완화부재(100)를 포함한다.1 to 4, the wiring breaker according to the present invention includes a housing 10, a stator 20, a movable element 30, a extinguishing portion 40, a tripping portion 50, An arc relief member 100 is included.
먼저, 상기 하우징(10)은 내부에 고정자(20)와, 가동자(30)와, 소호부(40)와, 트립부(50) 및, 아크 완화부재(100)가 설치된다.First, the housing 10 has a stator 20, a mover 30, a extinguishing portion 40, a tripping portion 50, and an arc relief member 100 installed therein.
여기서, 상기 하우징(10)은 상부로 개방된 공간부를 형성하는 하부케이스와, 상기 하부케이스의 상단에 결합되며, 후술될 레버(51)가 외부로 노출될 수 있도록 작동홀이 형성되는 상부케이스로 구비될 수 있다.Here, the housing 10 is a lower case for forming a space that is open to the upper, and the upper case is coupled to the upper end of the lower case, the operating hole is formed so that the lever 51 to be described later to be exposed to the outside It may be provided.
그리고, 상기 하우징(10)의 일측 또는 양측에는 고정자(20)의 연결단부(21)가 하부에 수평하게 설치되는 관통홀(11a) 수평으로 관통 형성된다.In addition, one or both sides of the housing 10 are horizontally penetrated through the through-hole 11a in which the connecting end 21 of the stator 20 is horizontally installed at the lower portion.
또한, 상기 하우징(10)의 일측 또는 양측에는 결합 또는 분리 가능한 커버(11)가 설치될 수 있다.In addition, one or both sides of the housing 10 may be provided with a cover 11 that can be coupled or separated.
이때, 상기 커버(11)에 관통홀(11a)이 수평으로 관통 형성될 수 있으며, 상기 관통홀(11a)은 상기 커버(11)의 폭을 따라 다수로 형성될 수 있다.In this case, the through hole 11a may be horizontally formed through the cover 11, and the through hole 11a may be formed in plurality along the width of the cover 11.
이와 같은 상기 관통홀(11a) 내에는 후술될 아크 완화부재(100)가 수직하게 설치된다.In the through hole 11a, the arc relief member 100 to be described later is installed vertically.
그리고, 상기 관통홀(11a)의 내부에 수평하게 설치되는 고정자(20)의 연결단부(21)는 관통홀(11a)을 통해 외부로 노출될 수 있다.In addition, the connection end portion 21 of the stator 20 horizontally installed inside the through hole 11a may be exposed to the outside through the through hole 11a.
고정자(20)는, 하우징(10) 내에 설치되어 전원측과 부하측의 연결을 이루기 위한 것으로, 하우징(10)의 내측 하단에 고정적으로 설치된다.The stator 20 is installed in the housing 10 to form a connection between the power supply side and the load side, and is fixedly installed at an inner lower end of the housing 10.
여기서, 상기 고정자(20)는 전류가 내측으로 유도되어 흐를 수 있도록 도체로 형성된다.Here, the stator 20 is formed of a conductor so that current can be induced to flow inside.
그리고, 상기 고정자(20)의 일측 상단에는 후술 될 가동자(30)와 접점이 이루어지도록 고정접점이 브레이징 되어 있다. In addition, a fixed contact point is brazed at the upper end of one side of the stator 20 to make a contact with the mover 30 to be described later.
가동자(30)는, 하우징(10) 내에 설치되어 고정자(20)와 접점이 개리되도록 구동된다.The mover 30 is installed in the housing 10 and driven so that the stator 20 and the contact point are opened.
여기서, 상기 가동자(30)는 일단에 회전축이 돌출 형성되며, 상기 회전축은 하우징(10)의 내측 벽면에 회전가능하게 설치된다.Here, the movable shaft 30 is formed to protrude from one end of the rotating shaft, the rotating shaft is rotatably installed on the inner wall surface of the housing (10).
그리고, 상기 가동자(30)의 회전되는 일단에는 전술한 고정자(20)의 고정접점과 접점이 이루어지도록 가동접점이 브레이징 되어 있다.In addition, the movable contact is brazed at one end of the mover 30 so as to make contact with the fixed contact of the stator 20 described above.
소호부(40)는, 하우징(10) 내에 설치되어 접점 개리시 발생하는 아크를 소호시킨다.The extinguishing part 40 is installed in the housing 10, and extinguishes the arc which arises at the time of contact opening.
이를 위해, 상기 소호부(40)는 강자성의 성질을 갖는 다수의 금속 그리드(41)들과, 상기 그리드(41)들을 일체로 고정시키기 위한 결합판(42) 등으로 구비될 수 있다.To this end, the extinguishing portion 40 may be provided with a plurality of metal grid 41 having a ferromagnetic property, the coupling plate 42 for fixing the grid 41 integrally.
트립부(50)는, 하우징(10) 내에 설치되어 전원측에서 과전류 또는 단락전류를 감지하여 기구부의 트립동작을 유도한다.The trip unit 50 is installed in the housing 10 to detect an overcurrent or a short circuit current on the power supply side to induce a tripping operation of the mechanism unit.
여기서, 상기 트립부(50)는 상부케이스 내에 회동가능하게 설치되는 레버(51)와, 상기 레버(51)와 연동하는 개폐부(미도시) 등이 구비된다.Here, the trip part 50 is provided with a lever 51 rotatably installed in the upper case, and an opening and closing part (not shown) that interlocks with the lever 51.
아크 완화부재(100)는, 소호부(40)를 통해 분출되는 아크를 완화시킨 후, 외부로 신속히 배출시키기 위한 것이다.The arc relief member 100 is for quickly discharging the arc ejected through the arc extinguishing portion 40 and then to the outside.
여기서, 상기 아크 완화부재(100)는 하우징(10)의 일측 또는 양측에 형성된 관통홀(11a)의 상부에 수직하게 설치된다.Here, the arc relief member 100 is installed perpendicular to the upper portion of the through hole (11a) formed on one side or both sides of the housing (10).
이때, 상기 아크 완화부재(100)는 전원측과 부하측과 연결되는 고정자(20)의 연결단부(21)측 상방에 이격 설치된다.At this time, the arc relief member 100 is spaced apart above the connection end portion 21 side of the stator 20 is connected to the power supply side and the load side.
이 상태에서, 상기 아크 완화부재(100)는 소호부(40)를 통해 분출되는 아크를 접촉 방식에 의해 완화시킨다.In this state, the arc relief member 100 relaxes the arc ejected through the extinguishing portion 40 by the contact method.
이와 같은 상기 아크 완화부재(100)는, 관통홀(11a)의 상부를 차단하는 상태로 수직한 사각 판재 형상으로 설치될 수 있다.The arc relief member 100 as described above may be installed in a vertical rectangular plate shape in a state of blocking the upper portion of the through hole (11a).
물론, 상기 아크 완화부재(100)는 관통홀(11a)의 형상에 따르도록 다양한 형상으로 적용이 가능하다.Of course, the arc relief member 100 may be applied in various shapes to conform to the shape of the through hole (11a).
그리고, 상기 아크 완화부재(100)는 전술한 커버(11)를 적용하는 경우, 하우징(10)의 일측 또는 양측으로부터 결합 또는 분리 가능하게 적용할 수 있다.In addition, when applying the cover 11 described above, the arc relief member 100 may be applied to be coupled or separated from one side or both sides of the housing 10.
즉, 상기 아크 완화부재(100)의 수명이 다한 경우, 신규한 아크 완화부재(100)로 용이하게 교체할 수 있다.That is, when the life of the arc relief member 100 is over, it can be easily replaced with a new arc relief member (100).
특히, 상기 아크 완화부재(100)는 표면과 내부에 다수의 기포가 형성된 다공성 금속을 사용할 수 있다.In particular, the arc relief member 100 may use a porous metal having a plurality of bubbles formed on the surface and inside.
다공성 금속(Metal foam)은, 금속 재의 내부에 수만은 기포를 가진 다공질(Porous) 금속을 말한다.Metallic foam refers to a porous metal having tens of thousands of bubbles inside a metal material.
여기서, 상기 아크 완화부재(100)는 표면과 내부의 기포가 서로 연결되지 않고 독립적으로 존재하는 폐포형 금속을 사용할 수 있다.Here, the arc relaxation member 100 may use a closed alveolar metal that is present independently of the surface and the bubbles inside and not connected to each other.
이와 다르게, 상기 아크 완화부재(100)는 표면과 내부의 기포가 서로 연결되는 개포형 금속을 사용할 수도 있다.Alternatively, the arc mitigating member 100 may use an open cell metal in which the bubbles of the surface and the inside are connected to each other.
즉, 상기 아크 완화부재(100)는 표면과 내부에 다수의 기포가 형성되므로, 전술한 소호부(40)를 통해 분출되는 아크가 기포로 유입될 수 있다.That is, since the arc relaxation member 100 has a plurality of bubbles are formed on the surface and the inside, the arc ejected through the above-described arc (40) may be introduced into the bubble.
이를 통해, 상기 아크 완화부재(100)는 아크를 완화시킨 후, 외부로 배출시키므로 단락사고를 방지할 수 있다.Through this, the arc relief member 100 to prevent the short-circuit accident because the arc to relax, and then discharged to the outside.
한편, 상기 아크 완화부재(100)는 관통홀(11a)의 외측을 향하는 일면에 다수의 방열핀(120)이 더 설치될 수 있다.On the other hand, the arc relief member 100 may be further provided with a plurality of heat radiation fins 120 on one surface facing the outside of the through-hole (11a).
상기 방열핀(120)들은, 아크 완화부재(100)가 아크를 완화시키는 과정에서 발생하는 열을 외부로 방출시키는 역할을 한다.The heat dissipation fins 120 play a role of dissipating heat generated in the arc relaxation member 100 to relax the arc to the outside.
따라서, 상기 아크 완화부재(100)는 온도가 과도하게 올라가지 않으므로, 상기 아크 완화부재(100)의 성능과 수명을 최적으로 유지시킬 수 있다.Therefore, since the temperature of the arc mitigating member 100 does not rise excessively, it is possible to optimally maintain the performance and life of the arc mitigating member 100.
결과적으로, 본 발명은 하우징(10)의 일측 또는 양측에 설치한 아크 완화부재(100)를 이용해 소호부(40)를 통해 분출되는 아크를 완화시킨 후 외부로 배출시킬 수 있다.As a result, the present invention by using the arc relief member 100 installed on one side or both sides of the housing 10 to relax the arc ejected through the extinguishing portion 40 can be discharged to the outside.
이로써, 차단시 발생하는 용융물질 및 이온화 가스를 안정적으로 배출시킬 수 있어 단락사고의 발생을 방지할 수 있다.As a result, it is possible to stably discharge the molten material and the ionizing gas generated during the blocking, thereby preventing the occurrence of a short circuit accident.
또한, 아크 완화부재(100)를 결합 및 분리 가능하도록 적용함으로써, 수명이 다한 아크 완화부재(100)를 용이하게 교체할 수 있다.In addition, by applying the arc relief member 100 so as to be coupled and detachable, it is possible to easily replace the end of the arc relief member (100).
지금까지 본 발명에 따른 배선용 차단기에 관한 구체적인 실시예에 관하여 설명하였으나, 본 발명의 범위에서 벗어나지 않는 한도 내에서는 여러 가지 실시 변형이 가능함은 자명하다.Although specific embodiments of a circuit breaker according to the present invention have been described so far, it is obvious that various embodiments can be modified without departing from the scope of the present invention.
그러므로 본 발명의 범위에는 설명된 실시예에 국한되어 전해져서는 안 되며, 후술하는 특허청구범위뿐만 아니라 이 특허청구범위와 균등한 것들에 의해 정해져야 한다.Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims below and equivalents thereof.
즉, 전술된 실시예는 모든 면에서 예시적인 것이며, 한정적인 것이 아닌 것으로 이해되어야 하며, 본 발명의 범위는 상세한 설명보다는 후술될 특허청구범위에 의하여 나타내어지며, 그 특허청구범위의 의미 및 범위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.In other words, the foregoing embodiments are to be understood in all respects as illustrative and not restrictive, the scope of the invention being indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.
<부호의 설명><Description of the code>
10: 하우징 11: 커버10: housing 11: cover
11a: 관통홀 20: 고정자11a: through hole 20: stator
21: 연결단부 30: 가동자21: connection end 30: mover
40: 소호부 41: 그리드40: extremity 41: grid
42: 결합판 50: 트립부42: coupling plate 50: trip part
51: 레버 100: 아크 완화부재51: lever 100: arc relief member
110: 기포 120: 방열핀110: bubble 120: heat radiation fin

Claims (8)

  1. 하우징과, 상기 하우징 내에 설치되어 전원측과 부하측의 연결을 이루는 고정자와, 상기 하우징 내에 설치되어 상기 고정자와 접점 및 접점이 개리되도록 구동되는 가동자와, 상기 하우징 내에 설치되어 접점 개리시 발생하는 아크를 소호시키는 소호부 및, 상기 하우징 내에 설치되어 전원측에서 과전류 또는 단락전류를 감지하여 기구부의 트립동작을 유도하는 트립부를 포함하며,A housing, a stator installed in the housing to form a connection between a power supply side and a load side, a mover installed in the housing and driven to open a contact and a contact between the stator, and an arc installed in the housing to generate an arc when opening a contact. A fire extinguishing unit for extinguishing and a trip unit installed in the housing to sense an overcurrent or a short circuit current on the power supply side to induce a tripping operation of the mechanism unit,
    상기 하우징의 일측 또는 양측에는, 전원측과 부하측과 연결되는 상기 고정자의 연결단부측 상방에 이격 설치되어, 상기 소호부를 통해 분출되는 아크를 접촉 방식에 의해 완화시키는 아크 완화부재를 포함하는 것을 특징으로 하는 배선용 차단기.On one side or both sides of the housing, it is provided above the connection end side of the stator connected to the power supply side and the load side, an arc relaxation member for relieving the arc ejected through the arc extinguishing means by a contact method Circuit breakers.
  2. 제1항에 있어서,The method of claim 1,
    상기 하우징의 일측 또는 양측에는,On one side or both sides of the housing,
    상기 고정자의 연결단부가 하부에 수평하게 설치되며, 상기 아크 완화부재가 상부에 설치되는 관통홀이 수평으로 관통형성되는 것을 특징으로 하는 배선용 차단기.The connecting end of the stator is horizontally installed in the lower portion, the circuit breaker, characterized in that the through-hole is formed horizontally through the arc relief member is installed in the upper portion.
  3. 제2항에 있어서,The method of claim 2,
    상기 아크 완화부재는,The arc relief member,
    상기 관통홀의 상부를 차단하는 상태로 수직한 판재 형상으로 설치되는 것을 특징으로 하는 배선용 차단기.Circuit breaker, characterized in that installed in a vertical plate shape in a state of blocking the upper portion of the through hole.
  4. 제2항에 있어서,The method of claim 2,
    상기 아크 완화부재는,The arc relief member,
    상기 하우징의 일측 또는 양측에 결합 또는 분리 가능한 것을 특징으로 하는 배선용 차단기.The circuit breaker, characterized in that the coupling or detachable to one side or both sides of the housing.
  5. 제2항에 있어서,The method of claim 2,
    상기 아크 완화부재는,The arc relief member,
    상기 관통홀의 외측을 향하는 일면에 다수의 방열핀이 설치되는 것을 특징으로 하는 배선용 차단기.The circuit breaker, characterized in that a plurality of heat radiation fins are installed on one surface facing the outside of the through hole.
  6. 제1항에 있어서,The method of claim 1,
    상기 아크 완화부재는,The arc relief member,
    표면과 내부에 다수의 기포가 형성된 다공질 금속인 것을 특징으로 하는 배선용 차단기.A circuit breaker according to claim 1, wherein the circuit breaker is a porous metal having a plurality of bubbles formed therein.
  7. 제6항에 있어서,The method of claim 6,
    상기 아크 완화부재는,The arc relief member,
    표면과 내부의 기포가 서로 연결되지 않고 독립적으로 존재하는 폐포형 금속인 것을 특징으로 하는 배선용 차단기.A circuit breaker for a wiring, characterized in that the air bubbles in the surface and the interior are independent of each other without being connected to each other.
  8. 제6항에 있어서,The method of claim 6,
    상기 아크 완화부재는,The arc relief member,
    표면과 내부의 기포가 서로 연결되는 개포형 금속인 것을 특징으로 하는 배선용 차단기.A circuit breaker according to claim 1, wherein the surface and the bubbles inside are interconnected metals.
PCT/KR2015/002878 2014-03-25 2015-03-24 Molded case circuit breaker WO2015147522A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0034450 2014-03-25
KR1020140034450A KR20150111474A (en) 2014-03-25 2014-03-25 Circuit breaker

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WO2015147522A1 true WO2015147522A1 (en) 2015-10-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0615384Y2 (en) * 1988-02-01 1994-04-20 三菱電機株式会社 Circuit breaker
JPH09115409A (en) * 1995-10-16 1997-05-02 Mitsubishi Electric Corp Circuit breaker
KR100441805B1 (en) * 1996-06-28 2004-11-03 쉬나이더 일렉트릭 소시에떼아노님 An apparatus for deionizing a braking gas in a low noise chamber of a circuit breaker for low voltage wiring,
CN202159641U (en) * 2011-07-14 2012-03-07 广东天富电气集团有限公司 Improved breaker
CN102683097A (en) * 2012-05-10 2012-09-19 广东必达电器有限公司 Multi-station combination outdoor vacuum switch device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0615384Y2 (en) * 1988-02-01 1994-04-20 三菱電機株式会社 Circuit breaker
JPH09115409A (en) * 1995-10-16 1997-05-02 Mitsubishi Electric Corp Circuit breaker
KR100441805B1 (en) * 1996-06-28 2004-11-03 쉬나이더 일렉트릭 소시에떼아노님 An apparatus for deionizing a braking gas in a low noise chamber of a circuit breaker for low voltage wiring,
CN202159641U (en) * 2011-07-14 2012-03-07 广东天富电气集团有限公司 Improved breaker
CN102683097A (en) * 2012-05-10 2012-09-19 广东必达电器有限公司 Multi-station combination outdoor vacuum switch device

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