WO2019009634A1 - Dispositif de prévention de fuite électrique sans mise à la terre - Google Patents

Dispositif de prévention de fuite électrique sans mise à la terre Download PDF

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Publication number
WO2019009634A1
WO2019009634A1 PCT/KR2018/007613 KR2018007613W WO2019009634A1 WO 2019009634 A1 WO2019009634 A1 WO 2019009634A1 KR 2018007613 W KR2018007613 W KR 2018007613W WO 2019009634 A1 WO2019009634 A1 WO 2019009634A1
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WO
WIPO (PCT)
Prior art keywords
terminal
input terminal
electrically connected
output terminal
connection
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Application number
PCT/KR2018/007613
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English (en)
Korean (ko)
Inventor
안춘훈
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주식회사 티피티
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Publication of WO2019009634A1 publication Critical patent/WO2019009634A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels

Definitions

  • the present invention relates to an ungrounded type electric leakage preventive device, and more particularly, to a non-contact type electric leakage preventive device which, when exposed terminals of an electric device are flooded, reduces leakage current flowing between the terminals to prevent electric shock, And a non-contact type electric leakage preventing device for reducing electric electromagnetic waves generated from the outside.
  • an electric shock may occur due to a leakage current flowing to a human body in contact with water .
  • the present invention has been made to solve the above problems, and it is an object of the present invention to provide an electric apparatus and a method of controlling the same, which are capable of reducing leakage current flowing between the terminals, Which prevents the occurrence of leakage current between the phase voltage terminal and the ground terminal and prevents the circuit of the leakage preventing device from tripping.
  • Another object of the present invention is to provide a non-contact type electric leakage preventive device for reducing the electric electromagnetic waves generated from the outside and reducing the exposure of the internal circuit of the electric device by the electric electromagnetic waves generated from the outside.
  • an ungrounded type earth leakage preventive device including: an input terminal unit including a first input terminal and a second input terminal; An output terminal portion including a first output terminal and a second output terminal; An electromagnetic wave receiving unit disposed adjacent to the input terminal unit and receiving an electromagnetic wave emitted from an input terminal electrically connected to a phase voltage terminal of the first input terminal and the second input terminal; A connection relationship between the first input terminal and the second input terminal and the first output terminal and the second output terminal is determined according to a control signal received from the electromagnetic wave receiving unit, Wherein the first output terminal is electrically connected to the neutral point terminal and the second output terminal is electrically connected to the phase voltage terminal; A first connection terminal which is isolated from the upper surface of the body portion and is electrically insulated from the first connection terminal so that the first output terminal and the second output terminal are electrically connected to the load; A connection terminal portion including two connection terminals; And a second connection terminal that is electrically connected to the first connection terminal and is electrically connected to the neutral terminal but does
  • the electromagnetic wave receiving unit may further include: an antenna for receiving an electromagnetic wave emitted from an input terminal electrically connected to a phase voltage terminal of the first input terminal and the second input terminal; And transforming an electromagnetic wave received from an input terminal electrically connected to the phase voltage terminal from a sinusoidal wave to a square wave and comparing a magnitude of a peak value of a positive pole appearing in the square wave with the reference value, An analog-to-digital converter for outputting a logic high voltage to an output terminal only when the magnitude is larger than the reference value and outputting a logic low voltage when the magnitude of the peak value of the positive electrode is smaller than or equal to the reference value; .
  • the analog input terminal is electrically connected to the second input terminal and the phase voltage terminal. And outputs a first control signal including the logic high voltage and the logic low voltage when the first input terminal and the neutral point terminal are electrically connected to each other, and the second input terminal and the neutral point terminal are electrically connected And the second terminal is connected to the first input terminal and the phase voltage terminal when the second input terminal is electrically connected to the first input terminal,
  • the first control signal or the second control signal is transmitted when the physical distance from the electromagnetic wave receiving unit is closer than the terminal A switching control such that in response to the transmission control signals, and to said first output terminal electrically connected to the neutral point terminal and the second output terminal electrically connected state is maintained and the phase voltage terminal; And a second input terminal connected to the first output terminal and the second input terminal connected to the second output terminal when the first control signal is input to the switching control unit, And a switching unit for connecting the first input terminal and the first output terminal when the second control
  • the switching unit may include a relay coil which is in an excited state when a current flows through the switching unit and a non-excited state when no current flows; And in the excited state, the first input terminal is connected to the first output terminal, and the second input terminal is connected to the second output terminal, and in the non-excited state, 2 output terminal, and a relay switching terminal for connecting the second input terminal to the first output terminal.
  • the switching control unit may cause a current to flow to the relay coil only when the first control signal is transmitted from the analog-to-digital converter.
  • an SMPS unit converting the AC voltage input through the first input terminal and the second input terminal to a DC voltage required for operation of the switching control unit,
  • the direct current voltage is supplied from the SMPS unit to allow a current to flow through the relay coil.
  • the electric leakage preventing conductor may be provided so as to surround the input terminal portion, the electromagnetic wave receiving portion, the terminal polarity fixing portion, the output terminal portion, and the connection terminal portion.
  • the connection terminal portion When the connection terminal portion is flooded, The electric current from the terminal flows through the water to the leakage preventing conductor and the electric current of 10 mA or more does not flow elsewhere, thereby preventing the electric leakage and the electric shock.
  • the electric leakage preventing conductor is provided so as to surround at least one of a side part of the connection terminal part, at least a part of the upper side of the connection terminal part, at least one side part of each side of the connection terminal part, A bottom conductor extending in a horizontal direction at an end of the vertical conductor and extending outwardly from the bottom of the body to the bottom of the bottom of the body; And a plate-shaped side conductor portion that is bent upward from the end of the portion and faces the side surface of the body portion and extends to a height not lower than an upper surface of the connection terminal portion.
  • FIG. 1 is a block diagram illustrating a configuration of an ungrounded type earth leakage preventing device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram for explaining the construction of the ungrounded type earth leakage preventing device according to an embodiment of the present invention in more detail.
  • FIG. 3 is a view for explaining the terminal polarity fixing portion according to an embodiment of the present invention in more detail.
  • FIG. 4 is a view for explaining the leakage preventing conductor according to an embodiment of the present invention in more detail.
  • FIG. 1 is a block diagram illustrating a configuration of a non-contact type earth leakage preventive device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating a configuration of an ungrounded type earth leakage preventive device according to an embodiment of the present invention in more detail Lt; / RTI >
  • This unground earthing type electric leakage preventive device is capable of driving a circuit even when there is no ground terminal so that leakage current flowing between the terminals can be reduced when the exposed terminals of the electric device are flooded,
  • the present invention aims to prevent the occurrence of leakage current between the phase voltage terminal and the ground terminal, which are terminals to which electrical energy is applied, and to prevent the circuit of the electric leakage preventing device from tripping .
  • the non-contact type earth leakage preventive apparatus includes an input terminal unit 100, an electromagnetic wave receiving unit 200, a terminal polarity fixing unit 300, an output terminal unit 400, a connection terminal unit 500, Lt; / RTI >
  • the input terminal portion 100 includes a first input terminal 110 which excludes a ground terminal, and is electrically connected to one of a phase voltage terminal and a midpoint terminal, and a first input terminal 110 electrically connected to the first input terminal 110 And a second input terminal 120 electrically connected to another terminal not connected.
  • the input terminal unit 100 may be implemented as a plug capable of plugging or unplugging an outlet, or may be implemented as a non-pluggable outlet without a grounding terminal.
  • the electromagnetic wave receiver 200 includes an antenna 210 and an analog-to-digital converter 220.
  • the electromagnetic wave receiver 200 includes a first input terminal 110 and an output terminal electrically connected to the phase voltage terminal of the second input terminal 120, And determines the connection relationship between the first input terminal 110 and the second input terminal 120 and the first output terminal 410 and the second output terminal 420 based on the received electromagnetic wave A control signal can be output.
  • the electromagnetic wave receiver 200 is disposed adjacent to the input terminal 100, and the antenna 210 is electrically connected to the phase voltage terminal of the first input terminal 110 and the second input terminal 120
  • the analog-to-digital converter 220 transforms the received electromagnetic wave from a sinusoidal wave to a square wave, compares the magnitude of the peak value of the positive polarity appearing in the square wave with a reference value, 110 and the input terminal electrically connected to the phase voltage terminal of the second input terminal 120 are arranged so that the physical distance is closer to the input terminal or the input terminal is arranged so that the physical distance is greater
  • the terminal polarity fixing unit 300 may be connected to the first input terminal 300 in accordance with whether the input terminal electrically connected to the phase voltage terminal is disposed closer to the input terminal or the input terminal disposed further apart,
  • the first input terminal 110 and the second output terminal 410 are connected to each other and the second input terminal 120 and the second output terminal 420 are connected to each other, 420, and determine whether to connect the second input terminal 120 and the first output terminal 410 to
  • the electromagnetic wave receiver 200 may be configured such that the physical distance from the first input terminal 110 to the second input terminal 120 of the second input terminal 120 to the electromagnetic wave receiver 200 is smaller than the physical distance between the first input terminal 110 and the second input terminal 120,
  • the phase voltage terminal is connected to the second input terminal 120 when the physical distance from the first input terminal 110 to the electromagnetic wave receiving section 200 is shorter than the physical distance from the electromagnetic wave receiving section 200 to the electromagnetic wave receiving section 200
  • a neutral voltage terminal is connected to the first input terminal 110 and a neutral voltage terminal is connected to the second input terminal 120
  • a peak value is detected from the electromagnetic wave received from the second input terminal 120, A peak value below the value can be detected.
  • the analog-to-digital converter 220 may be replaced with an AC (alternating current) -DC (direct current) converter.
  • the reference value is an input terminal electrically connected to the phase voltage terminal when the phase voltage terminal is electrically connected to the input terminal arranged such that the physical distance between the first input terminal 110 and the second input terminal 120 is closer to the input terminal.
  • the phase voltage terminal is electrically connected to the input terminal arranged so that the physical distance is greater than the peak value of the positive electrode of the electromagnetic wave signal emitted from the terminal, the electromagnetic wave emitted from the input terminal electrically connected to the phase voltage terminal Should be set larger than the peak value of the positive pole of the signal.
  • the electromagnetic wave receiving unit 200 can confirm whether the input terminal electrically connected to the phase voltage terminal is physically located closer to the input terminal or the input terminal disposed farther away,
  • the terminal polarity stabilizing unit 300 connects the first input terminal 110 and the first output terminal 410 and connects the second input terminal 120 and the second output terminal 420
  • the first input terminal 110 and the second output terminal 420 may be connected to each other and the second input terminal 120 and the first output terminal 410 may be connected to each other.
  • the waveform of the electromagnetic wave received by the electromagnetic wave receiver 200 appears as a sinusoidal wave, it is necessary to transform the sinusoidal wave into a square wave using a schmitt trigger circuit.
  • the electromagnetic wave modulated by the square wave has a magnitude of the peak value of the positive polarity, Values to determine whether the magnitude of the electromagnetic wave exceeds the reference value or below the reference value.
  • the terminal polarity stabilizing part 300 is always connected to the first output terminal 410 regardless of whether the first input terminal 110 and the second input terminal 120 are connected to the phase voltage terminal or the neutral point terminal, Is electrically connected to the neutral terminal, and the second output terminal 420 is electrically connected to the phase voltage terminal.
  • the terminal polarity fixing unit 300 is disposed between the input terminal unit 100 and the output terminal unit 400.
  • the terminal polarity fixing unit 300 includes a first input terminal 110 and a second input terminal 110,
  • the connection relationship between the terminal 120 and the first output terminal 410 and the second output terminal 420 is determined to connect the first input terminal 110 and the phase voltage terminal of the AC power source receptacle, When the first input terminal 110 and the neutral point terminal are connected and the second input terminal 120 and the phase voltage terminal are connected, the first terminal 120 and the neutral terminal of the AC power source socket are connected, or conversely,
  • the output terminal 410 may be electrically connected to the neutral point terminal, and the second output terminal 420 may be electrically connected to the phase voltage terminal.
  • the terminal polarity fixing unit 300 includes a switching unit 310, a switching control unit 320, and an SMPS unit (Switched Mode Power Supply) 330.
  • SMPS unit Switchched Mode Power Supply
  • the switching unit 310 switches between the first input terminal 110 and the second input terminal 120 and the first output terminal 410 and the second output terminal 420 according to a control signal input from the electromagnetic wave receiver 200. [ And the like.
  • the switching unit 310 connects the second input terminal 120 and the first output terminal 410, and the first input terminal 110 So that the first input terminal 110 and the first output terminal 410 are connected to each other when the second control signal is inputted to the switching control unit 320 And the second input terminal 120 and the second output terminal 420 may be connected to each other.
  • the switching control unit 320 controls the first input terminal 110 and the second input terminal 120 and the first output terminal 410 and the second output terminal 420 according to a control signal input from the electromagnetic wave receiver 200.
  • the switching unit 310 controls the switching unit 310 so that the connection relationship between the switching unit 310 and the switching unit 310 is determined.
  • the switching control unit 320 when the second input terminal 120 is arranged so that the physical distance from the electromagnetic wave receiving unit 200 is closer to the first input terminal 110 than the first input terminal 110, the switching control unit 320 outputs the first control signal or the second control signal When the control signal is transmitted, the first output terminal 410 is electrically connected to the neutral point terminal and the second output terminal 420 is electrically connected to the phase voltage terminal according to the transmitted control signal .
  • the SMPS unit 330 converts the AC voltage AC input through the first input terminal 110 and the second input terminal 120 to a DC voltage DC required for the operation of the switching controller 320, And supplies the DC voltage to the switching control unit 320.
  • the operation of the switching control unit 320 and the supply of the DC voltage will be described later with reference to FIG. 3 to FIG.
  • the output terminal unit 400 includes a first output terminal 410 and a second output terminal 420 and may be electrically connected to the connection terminal unit 500 through a wire.
  • connection terminal portion 500 includes a body portion made of an insulator and a first connection terminal 510 and a second connection terminal 520 which are spaced apart from each other and are electrically insulated from the upper surface of the body portion.
  • the first connection terminal 510 and the second connection terminal 520 are electrically connected to the first output terminal 410 and the second output terminal 420 to respectively connect the first output terminal 410 and the second output terminal 420,
  • the terminal 420 may be electrically connected to the load.
  • the electrical leak preventive conductor 600 is electrically connected to the first connection terminal 510 electrically connected to the neutral point terminal and is not electrically connected to the second connection terminal 520 electrically connected to the phase voltage terminal,
  • the leakage current leaking from the second connection terminal 520 electrically connected to the phase voltage terminal is electrically conducted through the medium of water to prevent the leakage current from flowing through the second connection terminal 520.
  • (600) to the first connection terminal (510).
  • the width of the vertical cross section with respect to the flow direction of the electric current is 10 mm 2 or more.
  • the width of the conductor plate is preferably not smaller than the width of the connection terminal unit 500.
  • the electric leakage preventing conductor 600 surrounds the input terminal portion 100, the electromagnetic wave receiving portion 200, the terminal polarity fixing portion 300, the output terminal portion 400, and the connection terminal portion 500 Or at least part of the side of the connection terminal part 500, at least part of the upper side of the connection terminal part 500, at least any of the side parts of the connection terminal part 500 and at least part of each of the upper side So that a satisfactory short circuit and an electric shock prevention effect can be obtained.
  • the leakage preventing and electric shock prevention effect is better as the area where the leakage preventing conductor 600 surrounds the connection terminal is larger.
  • the implementation of the anti-leak conductor 600 to satisfy these requirements may vary in various ways.
  • the electric leakage preventing conductor 600 may be formed on at least a part of the side of the connection terminal portion 500, at least a part of the upper side of the connection terminal portion 500, at least one of the side and upper portions of the connection terminal portion 500
  • a bottom conductive portion 620 extending outward from the bottom of the bottom conductive portion 620, a plate-like side portion 630 extending upward from the end of the bottom conductive portion 620 to a height not lower than the top surface of the connection terminal portion 500, And a conductor portion 630.
  • the height of the top surface of the side view body portion is at least 5 mm higher than the height of the connection terminal portion 500.
  • the electric leakage preventing conductor 600 may have a cylindrical structure that can house the connection terminal portion 500 to completely enclose the side surface, or a cylindrical structure that surrounds the second connection terminal 520 while covering the connection terminal portion 500 ) Can be constructed.
  • the anti-leak conductor 600 may further include an upper vertical conductor portion 610 that extends upward from the first connection terminal 510 to the upper side of the body portion. Further, the leakage preventing conductor 600 may include a horizontal conductor portion bent to the upper surface of the connection terminal portion 500 at the upper end of the upper vertical conductor portion 610 and extending to cover the second connection terminal 520 .
  • the electrical leak preventive conductor 600 may be configured such that a plurality of through holes are formed in a portion of the flat plate-like conductor located on the side or upper side of the connection terminal portion 500.
  • the leakage preventing conductor 600 includes at least two of the first portion located below the second connection terminal 520, the second portion located laterally, and the third portions located above the second connection terminal 520 , It is preferable that at least one of the at least two portions is located within 15 mm from the second connection terminal 520 and the remaining portion is located within 30 mm.
  • FIG. 3 is a view illustrating the terminal polarity fixing part 300 according to an embodiment of the present invention in more detail.
  • FIG. 4 is a cross-sectional view illustrating the electric leakage prevention conductor 600 according to an embodiment of the present invention in more detail. Which is shown for illustrative purposes.
  • the analog-to-digital conversion unit 220 of the electromagnetic wave signal unit includes an input terminal electrically connected to the phase voltage terminal, the input terminal being disposed such that a physical distance between the first input terminal 110 and the second input terminal 120 is closer Terminal, the peak value of the positive pole is larger than the reference value.
  • the square wave reaches the peak value of the positive pole, a logic high voltage is outputted.
  • the square wave is the peak value of the positive pole
  • the input terminal electrically connected to the phase voltage terminal may be operated such that the physical distance of the first input terminal 110 and the second input terminal 120 is longer than that of the first input terminal 110 and the second input terminal 120.
  • the magnitude of the peak value of the positive polarity does not exceed the reference value and only the logic low voltage is output.
  • a first control signal including a logic high voltage and a logic low voltage is output
  • the second input terminal 120 and the neutral point terminal are electrically connected to each other and the second input terminal 110 and the phase voltage terminal are electrically connected to each other to output a second control signal including only a logic low voltage .
  • the switching unit 310 controls the switching control unit 320 such that the second input terminal 120 and the first output terminal 410 are connected
  • the first input terminal 110 and the second output terminal 420 may be connected to each other and the second control signal may be inputted to the switching control unit 320.
  • the output terminal 410 may be connected to the second input terminal 120 and the second output terminal 420 may be connected to each other.
  • the switching unit 310 is in an excited state when a current flows through the switching unit 310, and the relay coil is in a non-excited state when no current flows.
  • the first input terminal 110 is connected to the first output terminal 410 and the second input terminal 120 is connected to the second output terminal 420 while the first input terminal 110 is connected to the second output terminal 420 in the excitation state, And a relay switching terminal for connecting the second input terminal 120 to the first output terminal 410.
  • the switching control unit 320 controls the switching of the first input terminal 110 and the second input terminal 120 only when the first control signal is transmitted from the analog- So that the converted DC voltage is supplied to the relay coil so that the current flows through the relay coil.
  • the electric leakage preventing conductor 600 includes an input terminal portion 100, an electromagnetic wave receiving portion 200, a terminal polarity fixing portion 300, an output terminal portion 400, and a connection terminal portion 500, which are components of the non- When the connection terminal portion 500 is flooded, the current from the second connection terminal 520 flows mostly through the water to the leakage preventing conductor 600, and electric shock is caused to the other portion It is possible to prevent a short circuit and an electric shock by preventing a current exceeding a predetermined level from flowing.
  • a current exceeding enough to cause an electric shock refers to a current of 15 mA or more, which is difficult for a person to detach from the power source when an electric shock occurs.
  • the electric current from the second connection terminal 520 flows mostly through the water to the electric leakage preventive conductor 600 and the electric current of 10 mA or more does not flow to other parts including the human body to prevent electric leakage and electric shock .
  • the electric leakage preventing conductor 600 reduces the electric electromagnetic waves generated from the outside, and can reduce the exposure of the internal circuit of the uninsulated type electric leakage preventive device by the electric electromagnetic waves generated from the outside.
  • the electric leakage preventing conductor 600 includes an input terminal portion 100, an electromagnetic wave receiving portion 200, a terminal polarity fixing portion 300, an output terminal portion 400, And the terminal portion 500.
  • the first output terminal electrically connected to the neutral point terminal is grounded, thereby reducing the generated electric wave, and the input terminal portion 100,
  • the terminal polarity fixing unit 300, the output terminal unit 400, and the connection terminal unit 500 can be reduced.
  • the electric leakage preventing conductor 600 may surround the input terminal section 100, the electromagnetic wave receiving section 200, the terminal polarity fixing section 300, the output terminal section 400, and the connection terminal section 500, for example. At least a portion of the side of the connection terminal portion 500, at least a portion of the upper side of the connection terminal portion 500, at least any of the side and upper portions of the connection terminal portion 500, And the first output terminal electrically connected to the neutral point terminal is grounded when the electric electromagnetic wave is generated from the outside so as to reduce the generated electric electromagnetic wave, It is possible to reduce the exposure of the electromagnetic wave to the electromagnetic wave receiver 100, the electromagnetic wave receiver 200, the terminal polarity fixing unit 300, the output terminal unit 400, and the connection terminal unit 500.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

La présente invention concerne un dispositif de prévention de fuite électrique sans mise à la terre. Le présent dispositif de prévention de fuite électrique sans mise à la terre comprend : une unité borne d'entrée comprenant une première borne d'entrée et une seconde borne d'entrée ; une unité borne de sortie comprenant une première borne de sortie et une seconde borne de sortie ; une unité de réception d'ondes électromagnétiques, qui est agencée de manière à être adjacente à l'unité borne d'entrée et reçoit des ondes électromagnétiques émises à partir d'une borne d'entrée, entre la première borne d'entrée et la seconde borne d'entrée, connectée électriquement à une borne de tension de phase ; une unité de fixation de polarité de borne, qui est agencée entre l'unité borne d'entrée et l'unité borne de sortie, et détermine une relation de connexion entre la première borne d'entrée et la seconde borne d'entrée et entre la première borne de sortie et la seconde borne de sortie en fonction d'un signal de commande reçu en provenance de l'unité de réception d'ondes électromagnétiques, de telle sorte que la première borne de sortie est électriquement connectée à une borne neutre et que la seconde borne de sortie est électriquement connectée à la borne de tension de phase ; une unité borne de connexion comprenant une unité corps constituée d'un isolant, et une première borne de connexion et une seconde borne de connexion, qui sont agencées pour être isolées électriquement en étant espacées l'une de l'autre et exposées à une surface supérieure de l'unité corps et permettre respectivement à la première borne de sortie et à la seconde borne de sortie d'être connectées respectivement et électriquement à une charge ; et un conducteur de prévention de fuite électrique qui n'est pas connecté électriquement à la seconde borne de connexion électriquement connectée à la borne de tension de phase mais qui est électriquement connecté à la première borne de connexion électriquement connectée à la borne neutre, et qui est agencé à proximité de la seconde borne de connexion. Par conséquent, lorsqu'un dispositif électrique est immergé, un courant de fuite circulant est réduit de manière à éviter un choc électrique et, en outre, la génération d'un courant de fuite entre une borne de tension de phase et une borne de terre est évitée, et un phénomène dans lequel un circuit du dispositif de prévention de fuite électrique est déclenché peut être évité.
PCT/KR2018/007613 2017-07-06 2018-07-05 Dispositif de prévention de fuite électrique sans mise à la terre WO2019009634A1 (fr)

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KR1020170085767A KR101801772B1 (ko) 2017-07-06 2017-07-06 비접지형 누전방지장치

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KR102186876B1 (ko) 2020-05-12 2020-12-07 (주)부광티피티 침수시 누전방지장치가 부설된 이동형 전선릴
KR102322324B1 (ko) 2020-06-04 2021-11-05 박종후 다기능 무 감전 보호시스템 및 보호방법
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KR102526805B1 (ko) * 2021-04-30 2023-04-27 주재규 무감전 이동식 다목적 전원공급박스

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KR101197414B1 (ko) * 2012-07-20 2012-11-05 (주)디에이치코프 침수 시 누전방지장치
KR20140118525A (ko) * 2013-03-29 2014-10-08 박양균 원통형 전극타입의 방전 에너지 방지 및 침수 감전 방지 장치
KR101448720B1 (ko) * 2014-01-27 2014-10-15 주식회사티피티 전기장 흡인 효과를 가지는 튜브형 차폐 부재 및 이를 포함하는 전자파 차폐장치
KR20160082435A (ko) * 2014-12-30 2016-07-08 박종준 침수 대비용 누전 방지장치
KR20170029765A (ko) * 2015-09-08 2017-03-16 신주현 무접지 콘센트용 접지 및 누전차단 장치

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