WO2019031626A1 - Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc - Google Patents

Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc Download PDF

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Publication number
WO2019031626A1
WO2019031626A1 PCT/KR2017/008618 KR2017008618W WO2019031626A1 WO 2019031626 A1 WO2019031626 A1 WO 2019031626A1 KR 2017008618 W KR2017008618 W KR 2017008618W WO 2019031626 A1 WO2019031626 A1 WO 2019031626A1
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WO
WIPO (PCT)
Prior art keywords
terminal
direct current
switch
magnet
electrically connected
Prior art date
Application number
PCT/KR2017/008618
Other languages
English (en)
Korean (ko)
Inventor
이규찬
서갑수
Original Assignee
주식회사 스마트파워서플라이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 스마트파워서플라이 filed Critical 주식회사 스마트파워서플라이
Priority to PCT/KR2017/008618 priority Critical patent/WO2019031626A1/fr
Publication of WO2019031626A1 publication Critical patent/WO2019031626A1/fr

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Classifications

    • 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
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Definitions

  • the present invention relates to a DC switch.
  • the power system applied to the conventional lighting field has undergone a double conversion process in which the AC input is converted to DC power and then converted to the DC power or AC power required for the lighting equipment. There is a problem that power efficiency is lowered.
  • the application of the DC distribution system to such an illumination field has the advantage that the efficiency of the ballast is improved, the size of the power system is reduced, and the reliability is improved. Therefore, .
  • a wall-mounted switch is used to supply and cut off the load.
  • Such a switch has no problem in an AC distribution system, but arcs in a DC distribution system are not have.
  • an arc is generated in an AC power distribution system, since there is a zero point in current, even if an attempt is made to shut off under a large current, the current passes through the zero point, and the arc is not maintained for a long time.
  • there is no zero point in the drive current which makes arc extinguishing difficult and arcs continuously, which causes fire or equipment failure.
  • an object of the present invention to provide, in one aspect, a technique relating to a DC switch for supplying or blocking a current in a DC wiring.
  • an object of the present invention is to provide a technique for rapidly extinguishing an arc arising from supply and interruption of direct current.
  • the present invention provides a technique relating to a DC switch.
  • a magnet is disposed near a contact to form a magnetic field and a magnetic force is applied in a direction perpendicular to the current flowing through the contact.
  • the DC switch pulls the arc when the arc occurs, causing it to be quickly extinguished.
  • 2N + 2 magnets are used to effectively arc the arc.
  • the present invention provides a liquid crystal display comprising: a first terminal electrically connected to a first DC wiring; A second terminal electrically connected to the second direct current wiring and moving in the first direction to contact or separate from the first terminal; And a small-diameter portion that forms a magnetic field in a direction crossing the first direction.
  • a semiconductor device comprising: a first terminal electrically connected to a first direct current wiring; and a second terminal electrically connected to another first direct current wiring and moving in a first direction, N (N is a natural number of 2 or more) terminal portions; And a small-diameter portion which forms a magnetic field in a direction crossing the first direction,
  • the present invention relates to a direct current switch.
  • a semiconductor device comprising: a first terminal electrically connected to a first direct current wiring; a second terminal electrically connected to a second direct current wiring and moving in a first direction, ; A rectangular case surrounding the terminal portion; A button portion for moving the second terminal in the first direction by a user operation; And a plurality of magnets disposed on one side of the case and two magnets disposed on opposite sides of the one side to form a magnetic field in a direction crossing the first direction, do.
  • the arc generated in the supply and interruption of the direct current is rapidly extinguished, thereby preventing a safety problem such as a fire, and the life of the DC switch is prolonged.
  • FIG. 1 is a configuration diagram of a DC power distribution system according to an embodiment.
  • FIG 2 is an exemplary view showing a configuration of an electric switch.
  • FIG. 3 is a configuration diagram of a DC switch according to an embodiment.
  • FIG. 4 is a configuration diagram of a DC switch according to another embodiment.
  • FIG. 5 is a configuration diagram of a DC switch according to another embodiment.
  • 6A to 6C are external views of a one-way DC switch according to an embodiment.
  • first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements.
  • FIG. 1 is a configuration diagram of a DC power distribution system according to an embodiment.
  • the DC power supplied from the DC power supply is supplied to the DC loads 120a and 120b via the DC switches 110a and 110b through the DC wiring lines DCL1a, DCL1b, DCL2a, and DCL2b.
  • the DC switches 110a and 110b are connected to the first DC wiring lines DCL1a and DCL1b on one side and connected to the second DC wiring lines DCL2a and DCL2b on the other side, , DCL1b) and the second direct current wiring (DCL2a, DCL2b) are electrically connected or disconnected.
  • the power of the DC power source may be power generated from renewable energy or power output from an AC / DC rectifier installed in the AC distribution system.
  • the direct current loads 120a and 120b are electric devices that operate using direct current power, such as general appliances, lighting devices, and the like.
  • the first DC wiring lines DCL1a and DCL1b and the second DC wiring lines DCL2a and DCL2b are disposed in the wall of the building or attached to the outer surface of the wall, 110a, 110b may be arranged in the form of a switch attached to the wall.
  • the first DC switch 110a and the second DC switch 110b may be connected to different DC loads 120a and 120b and may be disposed physically separated from each other. Alternatively, the first DC switch 110a and the second DC switch 110b may be integrated . In the embodiment described with reference to Fig. 5, an example in which two or more DC switches are integrated in one case will be described.
  • FIG 2 is an exemplary view showing a configuration of an electric switch.
  • the electric switch 10 may include a terminal 11 connected to a direct current load and another terminal 12 connected to a direct current power source.
  • the electric switch 10 when the other work terminal 12 moves in the direction of the one terminal 11 and comes into contact with the one terminal 11, the electric switch 10 is turned on, (11), the electric switch (10) is turned off.
  • An arc may be generated between the terminal 11 and the terminal 12 when the terminal 11 and the terminal 12 are separated from each other while the direct current flows through the switch 10.
  • an alternating current such a arc can naturally be extinguished after a certain period of time (for example, half a period of the alternating current) because of the zero point in the current, but in the case of the direct current, Both terminals 11 and 12 can be damaged.
  • ignition may occur due to heat generated in the arc, and the electric switch 10 and its surrounding facilities may be caught in a fire.
  • the direct current switch according to an embodiment further includes a soffit configuration for promptly extinguishing an arc appearing in contact and separation of terminals.
  • FIG. 3 is a configuration diagram of a DC switch according to an embodiment.
  • the DC switch 110 may include a terminal portion 310 and a SOHO portion 320.
  • the terminal portion 310 may include a first terminal 312 electrically connected to the first DC wiring DCL1 and a second terminal 314 electrically connected to the second DC wiring DCL2.
  • the second terminal 314 can be electrically connected to or disconnected from the first direct current wiring DCL1 and the second direct current wiring DCL2 while being in contact with or separated from the first terminal 312 while moving in the first direction.
  • the first terminal 312 may be in contact with or separated from the second terminal 314 while moving in the first direction.
  • both terminals 312 and 314 may be moved together or separated from each other.
  • the arc portion 310 can form a magnetic field in a second direction that intersects the first direction, and can arc the arc.
  • the first direction is represented by the direction in which the first terminal 312 or the second terminal 314 moves, but substantially the direction formed by the terminals 312 and 314, when there is no soffit 310, It may be the direction in which the arc current flows.
  • the first direction is expressed as a direction in which the first terminal 312 or the second terminal 314 moves in the following description.
  • the arc When an arc is generated between the first terminal 312 and the second terminal 314, the arc is formed in a direction in which the both terminals 312 and 314 are disposed (first direction). At this time, the arc can be pushed or pulled by a magnetic field like a metal by a plasma phenomenon, and the arc portion 310 can push the arc in a direction away from the both terminals 312 and 314 by forming a magnetic field in such an arc .
  • the small diameter portion 310 can form a magnetic field in a direction in which an arc is formed, that is, a direction (first direction) intersecting with the first terminal 312 and the second terminal 314 have.
  • first direction a direction intersecting with the first terminal 312 and the second terminal 314 have.
  • the second direction in which the magnetic field is formed by the magnetic field generating section 310 may be a direction perpendicular to the first direction.
  • the effect of the invention does not occur only when the first direction and the second direction are perpendicular to each other.
  • the first direction and the second direction may not exactly intersect with each other depending on the spatial arrangement, but when the first direction and the second direction cross each other when projecting in a plane from a specific direction, the effect of the invention may arise.
  • the soot unit 310 may further include a plurality of magnets 322a and 322b to form a magnetic field.
  • the magnets 322a and 322b may be electromagnets, but they may be general permanent magnets that do not contain electricity.
  • the plurality of magnets 322a and 322b may be arranged in a direction (second direction) intersecting with the first direction and may be arranged so that the polarities thereof are opposite to each other.
  • the first magnet 322a may indicate the N pole in the direction of looking at the terminal portion 310
  • the second magnet 322b may be arranged to show the S pole in the direction of looking at the terminal portion 310 .
  • the soffit can include three or more magnets, increasing the intensity of the magnetic field and diversifying the direction of the magnetic field.
  • FIG. 4 is a configuration diagram of a DC switch according to another embodiment.
  • the DC switch 400 includes a first terminal 312, a second terminal 314, and a soot unit 420, and the soot unit 420 may include four magnets.
  • the first and second magnets 422a and 422b included in the small portion 420 are moved in the first direction 312 and the second direction 314 in the first direction In the second direction intersecting the first direction, the arc extinguishing function can be performed.
  • the third magnet 422c and the fourth magnet 422d included in the small portion 420 are arranged in a third direction intersecting with the first direction, and can perform the arc extinguishing function.
  • the first magnet 422a and the second magnet 422b may be arranged so as to face each other with a different polarity to form a magnetic field in the second direction and the third magnet 422c and the fourth magnet 422d may The magnetic field can be formed in the third direction while being disposed so that the other polarities face each other.
  • the second direction and the third direction may be directions that are not parallel to each other but intersect with each other.
  • the second direction and the third direction may be diagonal directions of such a square.
  • the first direction and the second direction intersect vertically, and the first direction and the third direction may also intersect vertically.
  • the DC switch may include only one switch module, but a plurality of switch modules may be included depending on the embodiment.
  • FIG. 5 is a configuration diagram of a DC switch according to another embodiment.
  • the DC switch 500 may include N (N is a natural number of 2 or more) terminal portions 310 and a SOHO portion 520.
  • Each of the terminal portions 310 includes a first terminal 312 electrically connected to the first DC wiring lines DCL1a, DCL1b and DCL1c and a second terminal 314 electrically connected to the first DC wiring lines DCL2a, DCL2b, and DCL2c, . ≪ / RTI >
  • the first terminal 312 or the second terminal 314 is moved in the first direction and contacted or separated from each other. At this time, an arc current may be generated in the first direction.
  • the notch 520 forms a magnetic field in a direction crossing the first direction so as to extinguish the arc.
  • the terminal portions 310 may be arranged in a row and the small portion 520 may include 2 N + 1 magnets 522 arranged at the two ends of the terminal portions 310, .
  • the two magnets 522 disposed adjacent to each other in the small area 520 are arranged at different polarities. Accordingly, the two magnets 522 disposed adjacent to each other are attracted to each other by the pulling force.
  • the two magnets 522 disposed with the terminal portion 310 therebetween may be arranged so that the polarities thereof are opposite to each other. According to this structure, the magnets of the SOG 520 can form a magnetic field in the second direction crossing the first direction and in the third direction crossing the first direction by the terminal portion 310. With the arrangement of the magnets 522, the direction of the magnetic field is alternated every time between the terminal portions 310.
  • 6A to 6C are external views of a one-way DC switch according to an embodiment.
  • FIG. 6A is a top view of the DC switch 600
  • FIG. 6B is a bottom view of the DC switch 600
  • FIG. 6C is a side view of the DC switch 600.
  • the DC switch 600 may include a terminal portion 610, a small portion 620, a button portion 630, a case 640, and the like.
  • the terminal portion 610 is disposed in the case 640.
  • the terminal portion 610 includes a first terminal 612 electrically connected to the first DC wiring and a second terminal 612 electrically connected to the second DC wiring and contacting or separating from the first terminal 612 while moving in the first direction.
  • Two terminals 614 respectively.
  • the button unit 630 receives a user operation, and the first terminal 612 or the second terminal 614 moves in the first direction by a user operation.
  • the terminal portion 610 may be surrounded by a case 640 having a rectangular shape.
  • Two magnets 622a and 622c may be disposed on one side of the case 640 and two magnets 622b and 622d may be disposed on the other side opposite to the one side.
  • the first magnet 622a and the second magnet 622b can form a magnetic field in a quadrangular case 640 in a second direction that is located in a diagonal direction and faces each other at a different polarity and intersects the first direction.
  • the third magnet 622c and the fourth magnet 622d may form a magnetic field in a quadrangular case 640 in a third direction that is located in a diagonal direction and faces each other at a different polarity and crosses the first direction have.
  • FIG. 7 shows an embodiment of a DC switch according to an embodiment
  • FIG. 8 shows a waveform of an experiment using a DC switch of FIG.
  • the DC switch may be implemented in the form of one, two, three, four or five.
  • Fig. 7 is an example in which two cylindrical permanent magnets are attached to the left and right sides, respectively, in a rectangular case.
  • two or more switches are arranged in a line
  • only one pair (two) of magnets are arranged in the middle as in the example of FIG. 7, so that a so-called part can be realized with a total of 2 (N + 1) permanent magnets.
  • each of the 1-pole, 2-pole and 3-pole switches is composed of four, eight, and eight permanent magnets in a single row. , And 14 permanent magnets.
  • FIG. 8 is an experimental waveform using the DC switch of FIG.
  • FIG. 8 shows the experimental waveform of the one-way switch and the experimental waveform of the conventional switch in FIG.
  • the left waveform of FIG. 8 is a waveform when a conventional one-way switch is applied, and the right waveform is a waveform of a one-way switch of the DC switch according to the embodiment of FIG.
  • a 800-ohm resistor was connected to the load side, and a current of about 0.9 A was applied to the 400-V voltage.
  • the DC switch according to the embodiment generates an arc, but it can be seen that it is less than 15 ms (15/100 sec), and the effect of the embodiment can be confirmed clearly.

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un commutateur de courant continu comprenant : une première borne connectée électriquement à un premier câblage à courant continu ; une seconde borne connectée électriquement à un second câblage à courant continu et venant au contact de la première borne ou séparée de celle-ci tout en se déplaçant dans une première direction ; et une unité d'extinction d'arc ayant un champ magnétique dans une direction croisant la première direction.
PCT/KR2017/008618 2017-08-09 2017-08-09 Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc WO2019031626A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/008618 WO2019031626A1 (fr) 2017-08-09 2017-08-09 Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/008618 WO2019031626A1 (fr) 2017-08-09 2017-08-09 Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc

Publications (1)

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WO2019031626A1 true WO2019031626A1 (fr) 2019-02-14

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PCT/KR2017/008618 WO2019031626A1 (fr) 2017-08-09 2017-08-09 Commutateur de courant continu pour distribution de courant continu ayant une fonction d'extinction d'arc

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101214007B1 (ko) * 2011-12-19 2012-12-20 공주대학교 산학협력단 아크 소호 장치를 사용한 직류 차단기
KR101216824B1 (ko) * 2011-12-30 2012-12-28 엘에스산전 주식회사 직류 릴레이
US20130075367A1 (en) * 2010-05-28 2013-03-28 Thomas Eriksson DC Switching Device
JP2013145697A (ja) * 2012-01-16 2013-07-25 Nidec Copal Electronics Corp 直流電圧スイッチ
KR101581182B1 (ko) * 2015-03-26 2015-12-30 주식회사 와이엠텍 영구자석을 이용한 직류 양방향 스위칭 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130075367A1 (en) * 2010-05-28 2013-03-28 Thomas Eriksson DC Switching Device
KR101214007B1 (ko) * 2011-12-19 2012-12-20 공주대학교 산학협력단 아크 소호 장치를 사용한 직류 차단기
KR101216824B1 (ko) * 2011-12-30 2012-12-28 엘에스산전 주식회사 직류 릴레이
JP2013145697A (ja) * 2012-01-16 2013-07-25 Nidec Copal Electronics Corp 直流電圧スイッチ
KR101581182B1 (ko) * 2015-03-26 2015-12-30 주식회사 와이엠텍 영구자석을 이용한 직류 양방향 스위칭 장치

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