WO2021201599A1 - 가역형 전자접촉기 - Google Patents
가역형 전자접촉기 Download PDFInfo
- Publication number
- WO2021201599A1 WO2021201599A1 PCT/KR2021/004006 KR2021004006W WO2021201599A1 WO 2021201599 A1 WO2021201599 A1 WO 2021201599A1 KR 2021004006 W KR2021004006 W KR 2021004006W WO 2021201599 A1 WO2021201599 A1 WO 2021201599A1
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- WIPO (PCT)
- Prior art keywords
- terminal
- starting
- mcr
- mcf
- connection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/323—Latching movable parts mechanically for interlocking two or more relays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Definitions
- the present invention relates to a reversible magnetic contactor used for forward/reverse operation or reverse-phase braking of a motor. Reversible that can be performed electrically using auxiliary contacts and can be safely switched from forward to reverse or from reverse to forward using each operation switch, simplifying the wiring circuit and switchgear configuration It is about a type magnetic contactor.
- the present invention provides a positive and negative power supply of three-phase input power of R, S, and T stages to U1, V1, and W1 stages of the forward and reverse rotation motors because it is enough to change the phases of two of the three phases.
- a reversible magnetic contactor configured to enable forward rotation and reverse rotation of a three-phase induction motor, respectively.
- the reversible type magnetic contactor is manufactured by molding a conductor so that the main circuit wiring of each phase of the electromagnetic contactor that connects a plurality of electromagnetic contactors side by side interlockingly between the electromagnetic contactors can be fastened to an electric wire or an electromagnetic contactor, and the distance between the conductors It is configured to include a spacer member that can be assembled by maintaining a constant.
- the reversible magnetic contactor produced with a structure that can prevent a short circuit caused by disproportionately close phases and phases by being integrated with the separation distance between a plurality of conducting conductors maintained at a constant level is used for forward and reverse operation of the motor, reverse phase braking and It is manufactured and marketed as a product suitable for commercial, non-commercial, and conversion purposes.
- the present invention is to solve the above problems, and the power supply R, S, T of the magnetic contactor for forward rotation and the power supply R, S, T of the magnetic contactor for reverse rotation by two magnetic switches, which is a conventional wiring method, is connected to the lower end of the magnetic contactor in a busbar method.
- An object of the present invention is to provide a reversible magnetic contactor that is commonly supplied through an insulated conducting plate.
- the power supplied through the R, S, and T lines of the main power is supplied by a plurality of insulated current-carrying plates composed of a busbar method for power supply. and MCR (Magnetic Contactor Reverse) for opening/closing the reverse rotation circuit electrically, and the MCF and MCR form an interlock that electrically performs the simultaneous input prevention device between the magnetic contactors using each auxiliary contact.
- MCR Magnetic Contactor Reverse
- the MCF is configured to include a first starting terminal 1 to a first starting terminal 3 and a first connection terminal 1 to a first connection terminal 3, the MCR is a second connection terminal 1 to a second connection terminal 3 and It is configured to include a second starting terminal 1 to a second starting terminal 3, and the first starting terminal 1 and the second starting terminal 1, the first starting terminal and the second starting terminal 2, the first starting terminal 3 and the second starting terminal Terminal 3 is electrically connected, and the three insulated conducting plates connected to the MCF and MCR are 'ST terminal/first terminal/second terminal', 'SS terminal/first terminal/second terminal', 'SR', respectively.
- the ST electrically connects the first connection terminal 1 and the second connection terminal 2
- the SS is the first connection terminal 2 and the second connection terminal 1
- the SR electrically connects the first connection terminal 3 and the second connection terminal 3 of the MCR, and the MCF and MCR, which form a mutually symmetrical structure so that the main circuit wiring of each phase can be easily installed, is in the vertical direction. (vertically), the insulating conducting plate passes through the bottom of the magnetic contactor in the vertical and vertical directions of the magnetic contactor and is fastened to the connecting terminal. According to the operation of the MCF (10) and the MCR (20), two phases among three phases are changed to selectively operate and control the rotation direction of the motor in a forward or reverse direction.
- the reversible magnetic contactor according to the present invention is combined into one by supplying the supply power R, S, T of the main forward rotation magnetic contactor and the reverse rotation magnetic contactor to the lower end of the magnetic contactor through a busbar-type insulating conducting plate. It is easy to attach and detach the magnetic switch, and the number of power wiring terminals is reduced compared to existing products, and the number of power wiring wires is reduced. There are advantages.
- FIG. 1 is a schematic diagram of a reversible magnetic contactor according to the present invention.
- FIG. 2 is a pattern diagram of an insulating conductive plate according to the present invention.
- FIG. 3 is a circuit diagram of a reversible magnetic contactor according to the present invention.
- FIG. 4 is a pattern diagram of a reversible magnetic contactor according to the present invention.
- FIG. 5 is a schematic diagram schematically showing a power connection method of a reversible magnetic contactor according to the present invention
- MCF Magnetic Contactor Forward
- MCR Magnetic Contactor Reverse
- the MCF 10 for the forward direction and the MCR 20 for the reverse direction include cross bars 11 and 21 installed in an inner space formed by an upper frame and a lower frame, respectively, and the cross bar 11 ) (21), the movable cores (12, 22) connected to the lower part, the fixed cores (14, 24) installed at a predetermined distance below the movable cores (12, 22), and the fixed core (14)
- the operating coils 13 and 23 installed on both ends of the 24, and back springs 15 and 25 installed inside the movable core 12 and 22, the crossbar 11
- the movable contacts 17 and 27 are installed on the upper part of the 21 , and are configured to be in electrical contact with the fixed contacts 16 and 26 at the time of each coil excitation.
- the MCF (Magnetic Contactor Forward) 10 for opening and closing the forward rotation circuit and the MCR (Magnetic Contactor Reverse) 20 for opening and closing the reverse rotation circuit prevent simultaneous input between the electromagnetic contactors, respectively.
- the MCF (10) and the MCR (20) have a plurality of insulated conductive plates ( 40) is a method of fastening.
- the interlock refers to a circuit or component that prevents a malfunction in which two different devices operate at the same time, and when one of the two contacts operates, the contact is opened to block the operation of another device.
- the MCF (10) is provided with first starting terminals (18a, 18b, 18c) and first connection terminals (19a, 19b, 19c), the MCR (20) is provided with second connection terminals 1 (28a, 28b) , 28c) and second start terminals (29a, 29b, 29c) are provided.
- the first starting terminal includes a first starting terminal 1 (18a) / a first starting terminal 2 (18b) / a first starting terminal 3 (18c)
- the second starting terminal is a second starting terminal 1 (29a) ) / second starting terminal 2 (29b) / second starting terminal 3 (29c)
- the first connection terminal is a first connection terminal 1 (19a) / first connection terminal 2 (19b) / first connection terminal 3 (19c)
- the second connection terminal includes a second connection terminal 1 (28a/second connection terminal 2 (28b)/second connection terminal 3 (28c)).
- the plurality of insulated conducting plates 40 connected to the MCF 10 and the MCR 20 are configured in a busbar type for power supply, and as an embodiment of the present invention, the main The ST terminal 40a connected to 'T' of the power supply 100, the first terminal 41a connected to the MCR 20, and the second terminal 42a connected to the MCF 10; an SS terminal 40b connected to 'S' of the main power supply 100, a first terminal 41b connected to the MCR 20, and a second terminal 42b connected to the MCF 10; It includes an SR terminal 40c connected to 'R' of the main power supply 100 , a first terminal 41c connected to the MCR 20 , and a second terminal 42c connected to the MCF 10 .
- the ST 40a of the insulating conducting plate 40 electrically connects the first connecting terminal 1 19a of the MCF 10 and the second connecting terminal 2 28b of the MCR 20 to the insulating conducting plate SS (40b) of (40) electrically connects the first connection terminal 2 (19b) of the MCF (10) and the second connection terminal 1 (28a) of the MCR (20), and the SR of the insulating conducting plate (40) (40c) electrically connects the first connection terminal 3 (19c) of the MCF (10) and the second connection terminal 3 (28c) of the MCR (20), according to the operation of the MCF (10) and the MCR (20) Phase 2 of the 3 phases is changed, and the rotation direction of the motor is selectively controlled to be forward or reverse.
- the insulating conductive plate 40 has a bent portion 43a so as to be bent at the predetermined angle at the connection portion between the first connection terminals 19a, 19b, 19c and the second connection terminals 1 28a, 28b, 28c. (43b) and (43c) may be provided.
- the movable core 22 comes into contact with the fixed core 24 by the suction force generated from the coil, and the backspring 25 is compressed.
- the crossbar 21 connected to the movable core 22 moves downward together, the movable contact 27 comes into contact with the stationary contact 26, so that power flows in the reverse direction.
- an electrical connection between the first starting terminals 18a, 18b, 18c of the MCF 10 and the second starting terminals 29a, 29b, and 29c of the MCR 20 is established, respectively.
- the first starting terminal 3 (18c) and the second starting terminal 3 ( 29c) to produce a product there will be significant advantages in constructing an electromagnetic contactor.
- the supply power of the electromagnetic contactor according to the present invention is inevitably electronic because it is preferable to install it through the lower end of the electromagnetic contactor when using a common power supply using a plurality of insulated conductive plates 40 and other power supply lines.
- the coil installed under the inside of the contactor is energized, the distance between the coil and the main power supply line is inevitably narrowed, so a problem may occur due to electromagnetic induction between each power source.
- an electromagnetic shielding plate 60 is installed between the coils provided in the MCF 10 and the MCR 20 and the load 30, so that the electromagnetic induction phenomenon It is desirable to prevent
- the electromagnetic shielding plate 60 is made of a lead material, and in addition, an alternative or another member capable of shielding electrons and magnetism may be used, and between the lower end of the electromagnetic contactor and the coil.
- a lead plate is installed in the center, and it is installed based on the direction in which the main power passes through the center.
- the reversible magnetic switch of the present invention configured as described above is operated in a connected state as shown in the equivalent circuit diagram of FIG. 3, the pattern diagram of FIG. 4, and the schematic diagram of the power connection method of FIG. be able to
- FIG. 5 The schematic diagram of FIG. 5 is shown so that the power connection between the MCF 10 and the MCR 20 can be easily understood with reference to FIG. 4 .
- the MCF 10 and the MCR 20 forming a mutually symmetric structure so that the main circuit wiring of each phase can be easily installed is vertically arranged and , the insulating conducting plate 40 passes through the lower end of the electromagnetic contactor in the vertical and longitudinal directions of the electromagnetic contactor and is fastened to the connection terminal.
- the MCF (10) and the MCR (20) two of the three phases are changed to selectively control the rotation direction of the motor in a forward or reverse direction.
- the supply power R, S, T of the main magnetic contactor for forward rotation and the magnetic contactor for reverse rotation are commonly supplied to the lower end of the electromagnetic contactor through a busbar-type insulating conducting plate 40.
- the wiring work is easy, and it is easy to attach and detach the magnetic switch by combining it into one.
- the number of terminals of the power wiring is reduced and the size of the distribution box is reduced by the application of the insulated conductive plate 40 , resulting in economic savings.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor And Converter Starters (AREA)
- Breakers (AREA)
Abstract
Description
Claims (3)
- 메인전원의 R,S,T 라인을 통해 공급되는 전원을 전원공급용 부스바 방식으로 구성된 복수의 절연 통전판에 의해 정회전 회로 개폐용 MCF(Magnetic Contactor Forword)와 역회전 회로 개폐용 MCR(Magnetic Contactor Reverse)를 전기적으로 연결하며, 상기 MCF와 MCR은 각각 전자접촉기 간의 동시투입 방지장치를 각각의 보조 접점을 이용하여 전기적으로 실시하는 인터록(Interlock)을 형성하는 전자접촉기에 있어서,MCF(10)는 제1기동단자1 내지 제1기동단자3(18a,18b,18c) 및 제1연결단자1 내지 제1연결단자3(19a,19b,19c)를 포함하여 구성되고, MCR(20)은 제2연결단자1 내지 제2연결단자3(28a,28b,28c) 및 제2기동단자1 내지 제2기동단자3(29a,29b,29c)가 포함하여 구성되며, 상기 제1기동단자1(18a)와 제2기동단자1(29a), 제1기동단자(18b)와 제2기동단자2(29b), 제1기동단자3(18c)과 제2기동단자3(29c)를 전기적으로 접속하고,MCF(10) 및 MCR(20)에 연결되는 3개의 절연 통전판(40)은 각각 'ST단자(40a)/제1단자(41a)/제2단자(42a)', 'SS단자(40b)/제1단자(41b)/제2단자(42b)', 'SR단자(40c)/제1단자(41c)/제2단자(42c)'를 포함하여 구성되며, 상기 ST(40a)는 제1연결단자1(19a)와 제2연결단자2(28b)를 전기적으로 연결하고, 상기 SS(40b)는 제1연결단자2(19b)와 제2연결단자1(28a)를 전기적으로 연결하며, 상기 SR(40c)는 제1연결단자3(19c)와 MCR(20)의 제2연결단자3(28c)를 전기적으로 연결하고,각 상의 주회로 배선을 용이하게 설치할 수 있도록 상호 대칭구조를 이루는 MCF(10)와 MCR(20)는 세로방향(vertically)으로 배치하며, 절연 통전판(40)은 전자 접촉기의 수직 및 세로방향으로 전자 접촉기의 하단을 통과하여 연결단자에 체결하여. 상기 MCF(10)와 MCR(20)의 동작에 따라 3상 중 2상의 상을 바꾸어 전동기의 회전방향을 정방향(Forword) 또는 역방향(Reverse) 선택적으로 운전 제어하는 것을 특징으로 하는 가역형 전자 접촉기.
- 제 1항에 있어서,상기 절연 통전판(40)은 제1연결단자(19a,19b,19c)와 제2연결단자1(28a,28b,28c)의 연결부분에서 소정 각도로 꺾여질 수 있도록 굴곡부(43a)(43b)(43c)가 구비된 것을 특징으로 하는 가역형 전자 접촉기.
- 제 1항에 있어서,상기MCF(10) 및 MCR(20)의 동작코일(13)(23)과 각 절연 통전판(40) 사이에는 전자유도현상을 방지하기 위해 전자기 차폐판(60)이 구비되는 것을 특징으로 하는 가역형 전자접촉기.
Applications Claiming Priority (2)
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KR10-2020-0039568 | 2020-04-01 | ||
KR1020200039568A KR102391245B1 (ko) | 2020-04-01 | 2020-04-01 | 가역형 전자접촉기 |
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KR20230155136A (ko) | 2022-05-03 | 2023-11-10 | 김태중 | 가역형 전자접촉기 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980031042U (ko) * | 1996-11-30 | 1998-08-17 | 이종수 | 가역형 전자접촉기의 인터록 장착구조 |
KR200224390Y1 (ko) * | 2000-12-09 | 2001-05-15 | 장관순 | 가역전자접촉기 |
KR200308097Y1 (ko) * | 2002-12-10 | 2003-03-20 | 주식회사 일렉스 | 스타-델타 전자접촉기 |
KR20090085979A (ko) * | 2008-02-05 | 2009-08-10 | 엘에스산전 주식회사 | 전자접촉기 |
JP2012033441A (ja) * | 2010-08-03 | 2012-02-16 | Fuji Electric Fa Components & Systems Co Ltd | 可逆形電磁接触器 |
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2020
- 2020-04-01 KR KR1020200039568A patent/KR102391245B1/ko active IP Right Grant
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2021
- 2021-03-31 WO PCT/KR2021/004006 patent/WO2021201599A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980031042U (ko) * | 1996-11-30 | 1998-08-17 | 이종수 | 가역형 전자접촉기의 인터록 장착구조 |
KR200224390Y1 (ko) * | 2000-12-09 | 2001-05-15 | 장관순 | 가역전자접촉기 |
KR200308097Y1 (ko) * | 2002-12-10 | 2003-03-20 | 주식회사 일렉스 | 스타-델타 전자접촉기 |
KR20090085979A (ko) * | 2008-02-05 | 2009-08-10 | 엘에스산전 주식회사 | 전자접촉기 |
JP2012033441A (ja) * | 2010-08-03 | 2012-02-16 | Fuji Electric Fa Components & Systems Co Ltd | 可逆形電磁接触器 |
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KR102391245B1 (ko) | 2022-04-27 |
KR20210122444A (ko) | 2021-10-12 |
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