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公开(公告)号：EP4071779A1
公开(公告)日：2022-10-12
申请号：EP20895989.0
申请日：2020-04-09
发明人： YOO, Jungwoo
摘要： An arc path formation unit and a direct current relay are disclosed. The arc path formation unit according to an embodiment of the present invention comprises a plurality of magnet parts. Each magnet part is arranged adjacent to a plurality of fixed contacts. Opposing surfaces of the plurality of magnet parts located adjacent to one fixed contact and facing each other, the opposing surfaces facing each other, and opposing surfaces of the magnet parts located adjacent to another fixed contact, the opposing surfaces facing each other, are configured to have the same polarity. Accordingly, electromagnetic forces formed in the fixed contacts are formed in a direction away from each other and away from a central portion. Accordingly, damage to each configuration of the arc path formation unit and the direct current relay caused by a generated arc can be minimized.
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公开(公告)号：EP4054068A1
公开(公告)日：2022-09-07
申请号：EP20883062.0
申请日：2020-04-01
发明人： KIM, Dong Sik
摘要： The present invention relates to an inverter mounting structure having improved ease of assembly and durability, and capable of simplifying the structure of an inverter. According to one aspect of the present invention, provided is an inverter mounting structure comprising: a bracket fixed to an enclosure or a wall surface and forming an inverter accommodation space in which the inverter is accommodated and coupled; and an option case coupled to the outside of the bracket.
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63.发明公开
公开(公告)号：EP4030456A1
公开(公告)日：2022-07-20
申请号：EP20863761.1
申请日：2020-05-11
发明人： SEO, Min-Kyu
IPC分类号： H01H33/664 , H01H33/662 , H01H33/666
摘要： The present invention provides a contact monitoring device for a vacuum circuit breaker. The contact monitoring device is provided in a vacuum circuit breaker comprising: a vacuum interrupter having a fixed electrode which is fixed in an insulating container and is provided with a fixed contact at one end, and a movable electrode which is installed in the insulating container to be able to be lifted or lowered wherein the vacuum interrupter is provided with a movable contact at one end, the movable contact contacting or being separated from the fixed contact when the movable electrode is lifted or lowered; and a push rod assembly which is coupled to the other end of the movable electrode and lifts or lowers the movable electrode. In addition, the present invention provides a vacuum circuit breaker having the contact monitoring device.
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公开(公告)号：EP4024429A1
公开(公告)日：2022-07-06
申请号：EP20859517.3
申请日：2020-04-07
发明人： PARK, Jinhee , YOO, Jungwoo
摘要： Disclosed are an arc path formation unit and a direct current relay including same. An arc path formation unit according to an embodiment of the present invention comprises a plurality of magnet parts. One of the plurality of magnet parts is disposed on one surface of a magnet frame. The remaining magnet parts among the plurality of magnet parts are disposed on the other respective surfaces of the magnet frame. The magnet part disposed on the one surface is formed longer than the other magnet parts. Also, the magnet parts disposed on the other surface are spaced apart from each other as far as possible. Accordingly, the magnetic field formed between the magnet parts is formed such that the electromagnetic force generated in each of stationary contacts is generated in a direction away from the central region. As a result, damage to components disposed in the central region can be prevented.
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公开(公告)号：EP4024427A1
公开(公告)日：2022-07-06
申请号：EP20856036.7
申请日：2020-04-07
发明人： PARK, Jinhee , YOO, Jungwoo
摘要： Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit, according to one embodiment of the present invention, comprises a plurality of magnet units disposed adjacent to each of fixed contacts. At least one of the plurality of magnet units disposed adjacent to each fixed contact is configured so that the side thereof facing the rest of the magnet units has a different polarity. Accordingly, an arc path is formed from each fixed contact in different directions from each other. Further, the arc path is formed so as to move away from the center part of the arc path forming unit. Accordingly, damage to components disposed in the center part may be prevented.
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公开(公告)号：EP4024416A1
公开(公告)日：2022-07-06
申请号：EP20856676.0
申请日：2020-04-28
发明人： SEON, Jongkug , JO, Woojin , KO, Jaehyeong
摘要： The present invention provides a coil driving device comprising: an input voltage sensing unit for sensing an input voltage; a switch unit configured to make a switching operation to supply a driving current to a coil; a PWM circuit unit for outputting a pulse width modulation (PWM) signal for the switching operation of the switch unit; an impedance adjustment unit for varying an impedance value such that the PWM signal is adjusted, thereby limiting the driving current; and a control unit for causing the impedance adjustment unit to vary the impedance value on the basis of the input voltage, thereby adjusting at least one of the duty ratio of the PWM signal and the frequency thereof.
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公开(公告)号：EP4002667A1
公开(公告)日：2022-05-25
申请号：EP20841158.7
申请日：2020-03-16
发明人： BAE, Sun Ho , LEE, Jae Ho
摘要： Disclosed is a DC-DC converter of a power conversion system. A topology of the present invention comprises: first to fourth switches connected in series; fifth to eighth switches connected in series; a first capacitor connected in parallel to the series connection of the first and second switches; a second capacitor connected in parallel to the series connection of the fifth and sixth switches; a third capacitor connected in parallel to the series connection of the third and fourth switches; a fourth capacitor connected in parallel to the series connection of the seventh and eighth switches; a first inductor electrically connected to a first node between the first and second switches, and a second node between the fifth and sixth switches; and a second inductor electrically connected to a third node between the third and fourth switches, and a fourth node between the seventh and eighth switches, wherein the first and second inductors are coupled inductors, and a fifth node between the second and third switches, and a sixth node between the sixth and seventh switches are electrically equivalent.
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公开(公告)号：EP3998621A1
公开(公告)日：2022-05-18
申请号：EP19936839.0
申请日：2019-08-20
发明人： YOO, Jungwoo
摘要： An arc path forming part and a direct-current relay are disclosed. An arc path forming part according to an embodiment of the present invention comprises: a magnet frame extending in the length direction; and a plurality of main magnet portions placed in the length direction. The respective opposing surfaces of the main magnet portions facing each another have the same polarity. Therefore, magnetic fields in the direction of pushing away from each other are generated in a space between the respective main magnet portions. Due to the magnetic fields, an electromagnetic force in the direction toward the outside of the arc path forming part is formed. Accordingly, the generated arc is moved in the direction of the electromagnetic force and can be stably extinguished. Therefore, various members positioned in the central part of the direct-current relay are prevented from damages caused by the arc.
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公开(公告)号：EP3979290A1
公开(公告)日：2022-04-06
申请号：EP19931261.2
申请日：2019-08-20
发明人： YOO, Jungwoo
摘要： A direct current relay is disclosed. A movable contactor part provided on a direct current relay, according to an embodiment of the present invention, comprises a movable contactor and a pin member that is through-coupled to the movable contactor. The movable contactor can be supported by the pin member and simultaneously move on a straight line along the pin member. Therefore, even when a physical force is applied to the movable contactor, the movable contactor does not arbitrarily separate therefrom. The pin member is coupled to a support member insertion-coupled to a housing and an upper yoke. The pin member is formed to have a diameter larger than that of a hollow formed in the support member. The pin member can be insertion-coupled to the support member. Therefore, arbitrary separation of the movable contactor can be prevented even without a separate fastening member.
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公开(公告)号：EP3913756A1
公开(公告)日：2021-11-24
申请号：EP19909829.4
申请日：2019-08-30
发明人： KIM, Young-Kook
IPC分类号： H02B11/127 , H01H31/02
摘要： A safety shutter of the present disclosure comprises: a base unit; a shutter unit; and a cam unit. The base unit is coupled to a cradle of an air circuit breaker, and a terminal connected to a main circuit passes through the base unit. The shutter unit is coupled to the base unit so as to be spaced apart at a predetermined interval, and accommodates the terminal in the space between the shutter unit and the base unit. The cam unit extends from the base unit and penetrates the shutter unit. The shutter unit deactivates insulation by exposing the terminal in the direction of the air circuit breaker when the air circuit breaker is inserted in the direction of the base unit.
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