KR100576695B1 - A device for preventing coil terminal of electronic contactor from short brakedown of circuit - Google Patents

A device for preventing coil terminal of electronic contactor from short brakedown of circuit Download PDF

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KR100576695B1
KR100576695B1 KR1020040084437A KR20040084437A KR100576695B1 KR 100576695 B1 KR100576695 B1 KR 100576695B1 KR 1020040084437 A KR1020040084437 A KR 1020040084437A KR 20040084437 A KR20040084437 A KR 20040084437A KR 100576695 B1 KR100576695 B1 KR 100576695B1
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South Korea
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coil terminal
coil
magnetic contactor
terminal
short circuit
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KR1020040084437A
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Korean (ko)
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KR20060035100A (en
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김준호
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엘에스산전 주식회사
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/02Bases; Casings; Covers
    • H01H50/04Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041Details concerning assembly of relays
    • H01H50/045Details particular to contactors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/14Terminal arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00Casings
    • H01H2223/044Protecting cover

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

본 발명은 전자접촉기에 관한 것으로서, 특히 전자접촉기의 코어를 자화시키는 코일과 전원을 연결시키기 위해 설치된 코일터미널이 전자접촉기의 앞뒤에 2개씩 총 4 개인 전자접촉기 코일터미널의 단락사고를 방지하기 위한 장치에 관한 것이다. 본 발명에 따른 전자접촉기는, 본체(1) 한 쪽면의 코일터미널(2)은 개방되어 있으며, 다른 쪽면의 코일터미널은 연결다리(6)를 갖춘 차단막(4)으로 막혀 있어,전후 양면의 코일터미널의 연결에 따른 단락사고를 방지할 수 있는 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic contactor, and in particular, an apparatus for preventing a short circuit accident of a magnetic contactor coil terminal having 4 coil terminals each installed in order to connect a power supply to a coil magnetizing the core of the magnetic contactor. It is about. In the magnetic contactor according to the present invention, the coil terminal 2 on one side of the main body 1 is open, and the coil terminal on the other side is blocked by a blocking film 4 having a connecting leg 6, so that coils on both sides of the front and rear sides are closed. Characterized in that it can prevent a short circuit accident due to the connection of the terminal.

전자접촉기, 코일터미널, 차단막, 연결다리Magnetic Contactor, Coil Terminal, Block, Connecting Leg

Description

전자접촉기 코일터미널의 단락사고 방지용 장치{A DEVICE FOR PREVENTING COIL TERMINAL OF ELECTRONIC CONTACTOR FROM SHORT BRAKEDOWN OF CIRCUIT} Short circuit accident prevention device of magnetic contactor coil terminal {A DEVICE FOR PREVENTING COIL TERMINAL OF ELECTRONIC CONTACTOR FROM SHORT BRAKEDOWN OF CIRCUIT}

도 1은 한쪽 면에 코일터미널이 형성되어 있는 전자접촉기의 외관을 나타낸 도면1 is a view showing the appearance of a magnetic contactor having a coil terminal formed on one surface thereof;

도 2는 상기 도 1의 코일터미널(2)의 반대쪽 터미널(3)이 형성된 것을 나타낸 도면FIG. 2 shows that the terminal 3 opposite to the coil terminal 2 of FIG. 1 is formed.

도 3은 본 발명에 따른 차단막이 형성된 형태를 나타낸 도면3 is a view showing a form in which a barrier film is formed according to the present invention;

도 4는 본 발명의 차단막을 나타낸 도면4 is a view showing a barrier of the present invention

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

1...본체 2, 3.....코일터미널1. Body 2, 3 .... Coil Terminal

4...차단막 5....외부 프레임4 ... shield 5 .... outer frame

6...연결다리 7... 빈 공간6 ... connection bridge 7 ... empty space

본 발명은 전자접촉기에 관한 것으로서, 특히 전자접촉기의 코어를 자화시키는 코일과 전원을 연결시키기 위해 설치된 코일터미널이 전자접촉기의 앞뒤에 2개 씩 총 4 개인 전자접촉기 코일터미널의 단락사고를 방지하기 위한 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic contactor. In particular, a coil terminal provided for connecting a coil magnetizing a core of a magnetic contactor with a power source is provided to prevent a short circuit accident of a total of four magnetic contactor coil terminals, each of which is provided in front and rear of the magnetic contactor. Relates to a device.

전자접촉기는 각종 전동기의 제어 및 운전 또는 부하의 개폐등을 포함하여 다양한 전기설비에 사용되고 있다. 이런 전자접촉기는 크게 구동부와 통전부로 구분되는 데, 통전부는 고정접점과 가동접점으로 구성되어 있으며 전류의 흐름을 온/오프시키며 이때 발생하는 아크를 소호시키는 곳이다.Magnetic contactors are used in a variety of electrical equipment, including control and operation of various electric motors, and opening and closing of loads. The magnetic contactor is largely divided into a driving part and an energizing part. The energizing part is composed of a fixed contact point and a movable contact point, and is a place to turn on / off the flow of current and to extinguish the arc generated at this time.

통전부의 가동접점은 크로스바에 고정되어 있고 고정접점은 프레임에 고정되어 있어 가동코어의 움직임에 따라 가동접점이 상하로 움직이면서 고정접접과 작용하여 주 회로를 개폐한다.The movable contact of the energizing part is fixed to the crossbar, and the fixed contact is fixed to the frame. As the movable core moves, the movable contact moves up and down to act as a fixed contact to open and close the main circuit.

구동부는 가동접점을 상하로 움직이는 기능을 수행하는 곳으로 철심코어에 코일을 감고 여자전류를 흘려서 발생하는 기자력을 구동력으로 사용한다.The driving part is a place to move the movable contact up and down. It uses the magnetic force generated by winding the coil around the iron core core and flowing the excitation current as the driving force.

철심코어를 자화시켜 구동력을 얻으려면 철심코어에 감긴 여자전류를 인가해야 한다. 코일양단이 코일터미널에 연결되어 있고 이 코일터미널과 전원을 연결하여 코일에 전류를 인가한다.In order to obtain the driving force by magnetizing the core core, an excitation current wound on the core core must be applied. Both ends of the coil are connected to the coil terminal and the coil terminal is connected to a power source to apply current to the coil.

현재 전자접촉기는 모터 스타터나 과부하 계전기등과 결합되어 시스템의 일부로 사용되는 경우가 많아지고 있다. 그리하여 모터 스타터나 과부하 계전기를 전자접촉기에 연결할 경우 코일터미널이 가려지는 문제가 발생하여 전자접촉기의 앞뒤에 2 개씩의 코일터미널이 있는 형태의 전자접촉기가 많이 사용되고 있다. Current magnetic contactors are often used as part of a system in combination with motor starters or overload relays. Therefore, when the motor starter or the overload relay is connected to the magnetic contactor, a problem occurs in that the coil terminal is blocked. Therefore, a magnetic contactor having two coil terminals before and after the magnetic contactor is frequently used.

한편,전자접촉기가 모터 스타터 또는 과부하 계전기와 연결될 경우 전면의 코일터미널이 가려지기 때문에 전원과의 연결이 매우 힘들다. 따라서, 전자접촉기 의 전후에 2 개씩의 코일터미널이 있는 구조가 많이 사용되고 있으며, 일반적으로 코일은 단상 교류전류에 의해 여자되므로 4 개의 코일터미널은 전/후면 2 개씩의 코일터미널이 서로 연결되어 있다.On the other hand, when the magnetic contactor is connected to the motor starter or the overload relay, it is very difficult to connect to the power source because the coil terminal on the front side is covered. Therefore, a structure having two coil terminals before and after the magnetic contactor is frequently used. In general, since coils are excited by single-phase AC current, four coil terminals are connected to each other by two coil terminals.

도 1은 종래의 전자접촉기의 외관을 나타낸 것으로서 본체(1)에 한쪽면에 2개의 코일터미널(2)이 형성되어 있다.1 shows the appearance of a conventional magnetic contactor, in which a main body 1 is provided with two coil terminals 2 on one side.

따라서, 전면이나 후면에 있는 2 쌍의 코일터미널에 전원을 연결하는 것이 정상이지만 실수로 서로 다른 양면(좌측 또는 우측)에 있는 코일터미널에 전원을 연결하는경우에는 단락사고가 발생하여 전원 및 부하에 큰 영향을 미치는 일이 발생할 우려가 있다. Therefore, it is normal to connect power to two pairs of coil terminals on the front or back, but if you accidentally connect power to the coil terminals on different sides (left or right), a short circuit may occur and There is a fear that something with a big impact will occur.

그리하여, 본 발명은 이와 같이 실수로 전후 양면의 코일터미널에 전원을 연결하여 단락사고가 발생할 수 있는 우려를 본질적으로 불식하고 일어날수 있는 사고를 사전에 예방하고자 한다. Thus, the present invention is intended to prevent accidents that can occur by essentially ignoring the possibility of a short circuit accident by connecting the power to the coil terminals of the front and rear both sides by mistake.

이하, 본 발명에 따른 일실시예를 첨부한 도면을 참고하여 설명한다.Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described.

본 발명에 따른 전자접촉기는, 본체(1) 한 쪽면의 코일터미널(2)은 개방되어 있으며, 다른 쪽면의 코일터미널은 연결다리(6)를 갖춘 차단막(4)으로 막혀 있어,전후 양면의 코일터미널의 연결에 따른 단락사고를 방지할 수 있는 것을 특징으로 한다.In the magnetic contactor according to the present invention, the coil terminal 2 on one side of the main body 1 is open, and the coil terminal on the other side is blocked by a blocking film 4 having a connecting leg 6, so that coils on both sides of the front and rear sides are closed. Characterized in that it can prevent a short circuit accident due to the connection of the terminal.

또한, 상기 연결다리(6)는 3개인 것을 특징으로 한다.In addition, the connecting bridge 6 is characterized in that three.

도 2는 상기 도 1의 코일터미널(2)의 반대쪽 터미널(3)이 형성된 것을 나타낸 도면이다.FIG. 2 is a view showing that the terminal 3 opposite to the coil terminal 2 of FIG. 1 is formed.

전면 또는 후면에 있는 한 쌍의 코일터미널을 이용할 때 실수로 한쪽에 위치한 앞뒤의 코일터미널을 전원과 연결하면 전원이 단락되는 사고를 막기위해, 도 4에 도시된 바와 같은 차단막(4)을 , 예를 들어 공장에서 출하할 때 후면에 위치한 1 쌍의 코일터미널(3)을 막으면, 실제 현장에서 사용할 시에는 막힌 부분을 제거하고 사용하면 된다.When using a pair of coil terminals on the front or the rear, in order to prevent accidental short circuit when the front and rear coil terminals located on one side are accidentally connected to a power source, a blocking film 4 as shown in FIG. For example, when shipping from the factory to block a pair of coil terminals (3) located in the rear, when the actual use in the field can be removed and used.

즉, 전자접촉기(1)에 설치된 4 개의 코일터미널중에서 보통 전면에 위치한 코일터미널(2)은 일반적인 경우에 사용할 수 있도록 아무런 조치를 취하지 않는다.That is, among the four coil terminals installed in the magnetic contactor 1, the coil terminal 2 usually located on the front side does not take any action to be used in the general case.

그러나, 후면에 위치한 코일터미널은 본 발명에 따른 차단막에 막혀있으므로, 실수로 사용자가 전면에 있는 코일터미널과 후면에 있는 코일터미널을 연결하여 전원이 단락되는 사고를 미연에 방지할 수가 있다.However, since the coil terminal located on the rear side is blocked by the blocking film according to the present invention, the user may accidentally connect the coil terminal on the front side and the coil terminal on the rear side to prevent the power short circuit accident.

도 3은 이러한 차단막(4)이 본체의 다른 쪽면의 코일터미널(3)에 형성된 것을 도시한다.3 shows that such a barrier film 4 is formed in the coil terminal 3 on the other side of the main body.

차단막(4)과 본체의 외부 프레임(5)은 3개의 연결다리(6)로 연결되어 있어 이동 또는 설치할 때의 충격에도 차단막이 프레임에서 떨어지지 않도록 되어 있다.The shielding film 4 and the outer frame 5 of the main body are connected by three connecting legs 6 so that the shielding film does not fall off the frame even when impacted during movement or installation.

만약, 전자접촉기(1)를 다른 장치와 접속할 필요가 있어 전면에 위치한 코일터미널(2)을 사용하지 못하고, 차단막이 형성되어 있는 후면에 있는 코일터미널을 사용할 경우에는 차단막(4)과 외부 프레임(5)사이에 있는 빈공간(7)에 작은 드라이버와 같은 공구를 삽입하여 들어 올리면 차단막(4)을 쉽게 제거할 수 있다.If the magnetic contactor 1 needs to be connected to another device, and the coil terminal 2 located on the front side cannot be used, and the coil terminal on the rear side where the shielding film is formed is used, the shielding film 4 and the outer frame ( 5) By inserting and lifting a tool such as a small screwdriver in the empty space 7 between, the barrier film 4 can be easily removed.

또는 3 개의 연결다리(6)에 드라이버등의 공구를 사용하여도 차단막을 쉽게 제거할 수 있다.Alternatively, the barrier film can be easily removed by using a tool such as a screwdriver on the three connecting legs 6.

그리하여, 안전을 위해 제거된 차단막(4) 및 연결다리(6)를 코일터미널(3)에서 완전히 제거하고 전원과 연결하면 전자접촉기(1)를 사용할 수 있다.Thus, the magnetic contactor 1 can be used by completely removing the shielding film 4 and the connecting leg 6 removed from the coil terminal 3 and connected to the power source for safety.

본 실시예에서는 4 개의 코일터미널을 갖는 전자접촉기에 관해 설명하였으나, 당업자라면 여러 개의 코일터미널을 갖는 전자접촉기에 대해서도 본 발명을 응용, 수정할 수 있음을 알 수 있을 것이다. In the present embodiment, but described with respect to the magnetic contactor having four coil terminals, those skilled in the art will appreciate that the present invention can be applied and modified also for the magnetic contactor having a plurality of coil terminals.

본 발명은 간단한 차단막으로 실수로 전후 양면의 코일터미널에 전원을 연결하여 단락사고가 발생할 수 있는 우려를 본질적으로 불식하고 일어날수 있는 사고를 사전에 예방할 수 있다. According to the present invention, by connecting a power supply to the coil terminals on both sides of the front and rear by mistake with a simple blocking film, the possibility of a short circuit accident can be essentially eliminated and an accident that can occur can be prevented in advance.

Claims (2)

전후면에 코일터미널을 포함하는 전자접촉기에 있어서, In the magnetic contactor comprising a coil terminal in the front and rear, 본체(1) 한 쪽면의 코일터미널(2)은 개방되어 있으며,The coil terminal 2 on one side of the main body 1 is open, 다른 쪽면의 코일터미널은 연결다리(6)를 갖춘 차단막(4)으로 막혀 있어,The coil terminal on the other side is blocked by a blocking film (4) with a connecting leg (6), 전후 양면의 코일터미널의 연결에 따른 단락사고를 방지할 수 있는 것을 특징으로 하는 전자접촉기.Magnetic contactor, characterized in that it can prevent a short circuit accident by connecting the coil terminals of the front and rear. 제 1항에 있어서,The method of claim 1, 상기 연결다리는 3개인 것을 특징으로 하는 전자접촉기.Magnetic contactor, characterized in that the three connecting legs.
KR1020040084437A 2004-10-21 2004-10-21 A device for preventing coil terminal of electronic contactor from short brakedown of circuit KR100576695B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150089781A (en) * 2014-01-28 2015-08-05 엘에스산전 주식회사 Magnetic contactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150089781A (en) * 2014-01-28 2015-08-05 엘에스산전 주식회사 Magnetic contactor
KR101589106B1 (en) * 2014-01-28 2016-01-27 엘에스산전 주식회사 Magnetic contactor

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