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EP2736064B1 - Dispositif de déclenchement et disjoncteur pour câblage électrique le comprenant - Google Patents

Dispositif de déclenchement et disjoncteur pour câblage électrique le comprenant Download PDF

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Publication number
EP2736064B1
EP2736064B1 EP12858425.7A EP12858425A EP2736064B1 EP 2736064 B1 EP2736064 B1 EP 2736064B1 EP 12858425 A EP12858425 A EP 12858425A EP 2736064 B1 EP2736064 B1 EP 2736064B1
Authority
EP
European Patent Office
Prior art keywords
link
rotated
mover
manipulation lever
stator
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP12858425.7A
Other languages
German (de)
English (en)
Other versions
EP2736064A1 (fr
EP2736064A4 (fr
Inventor
Byung-Soo AN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HD Hyundai Heavy Industries Co Ltd
Original Assignee
Hyundai Heavy Industries Co Ltd
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 Hyundai Heavy Industries Co Ltd filed Critical Hyundai Heavy Industries Co Ltd
Publication of EP2736064A1 publication Critical patent/EP2736064A1/fr
Publication of EP2736064A4 publication Critical patent/EP2736064A4/fr
Application granted granted Critical
Publication of EP2736064B1 publication Critical patent/EP2736064B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/521—Details concerning the lever handle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • 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
    • H01H73/04—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge

Definitions

  • the present invention relates to a circuit breaker for electric wiring, and more particularly, to a trip device that allows a manipulation lever capable of ON/OFF manipulation to maintain an ON-state when a movable contact of a mover and a stationary contact of a stator are fused to each other in an abnormal situation and a circuit breaker for electric wiring including the same.
  • a circuit breaker for electric wiring is an electronic device that automatically breaks a circuit upon electrical overload or short circuit to protect the circuit and a load.
  • the circuit breaker for electric wiring generally includes a stationary terminal for connection to a power source and a load, a movable terminal driven to be connected to or separated from the stationary terminal, an interrupter for interrupting an arc generated when a contact is opened, and a trip unit for detecting overcurrent or short current in the power source to guide trip operation of a mechanism.
  • Documents related to the present invention include Korean Patent No. 10-1085267 (registered on November 14, 2011 ) which discloses a trip mechanism of a circuit breaker for electric wiring that can reduce a trip operation time.
  • KR20090016344A discloses another trip device according to the preamble of claim 1.
  • GB1461217A discloses prior art.
  • An aspect of the present invention is to provide a trip device that allows a manipulation lever to maintain an ON-state by resilient force, thereby allowing a user to easily recognize current state of a circuit breaker, when a movable contact of a mover and a stationary contact of a stator are fused to each other, and that can secure safety even upon incorrect manipulation of the manipulation lever, and a circuit breaker for electric wiring including the same.
  • a manipulation lever when contacts of a mover and a stator are fused to each other due to an abnormal state of a circuit breaker for electric wiring, a manipulation lever can maintain an ON-state such that a user can easily recognize a contact state and can reduce the risk of an accident even upon incorrect manipulation of the manipulation lever.
  • Fig. 1 is a perspective view of a trip device according to one embodiment of the present invention
  • Fig. 2 is a view of a manipulation lever moved to an ON position in a circuit breaker for electric wiring having a trip device according to one embodiment of the present invention
  • Fig. 3 is a view of the manipulation lever moved to an OFF position in the circuit breaker for electric wiring having the trip device according to the embodiment of the present invention.
  • Fig. 4 is a view of the manipulation lever moved to an ON position when a stator and a mover are fused to each other in the circuit breaker for electric wiring having the trip device according to the embodiment of the present invention.
  • Fig. 5 is a view of the manipulation lever moved to an OFF position when the stator and the mover are fused to each other in the circuit breaker for electric wiring having the trip device according to the embodiment of the present invention.
  • Fig. 6 is a view of the manipulation lever moved from an OFF position to an ON-position when the stator and the mover are fused to each other in the circuit breaker for electric wiring having the trip device according to the embodiment of the present invention.
  • a trip device includes a shut-down mechanism 100, a locking member 200, a stator 300, a mover 400, and a link member 500.
  • a circuit breaker 1 for electric wiring having a trip device includes a housing 20, an interrupter 30, a shut-down mechanism 100, a locking member 200, a stator 300, a mover 400, and a link member 500.
  • the interrupter 30 is disposed within the housing 20 and is formed of a ferromagnetic metal.
  • the interrupter 31 includes a plurality of grids 31.
  • the stator 300 and the interrupter 30 may be integrally assembled and may be disposed within the housing 20 formed of an insulating material.
  • interrupter 30 is well known in the art and will not be described in detail.
  • the shut-down mechanism 10 is adapted to rotate the mover 400 to an ON/OFF or trip position.
  • the shut-down mechanism 100 includes a manipulation lever 110 rotated between the ON/OFF or trip positions, and a first resilient member 120 returning the manipulation lever 110 to an ON position.
  • the manipulation lever 110 is provided at a lower end thereof with a rotary shaft coupled to an inner upper end of the housing 20 described below.
  • the manipulation lever 110 is provided at an upper end thereof with a knob with respect to the rotary shaft at the lower end thereof such that the knob can be rotated to the ON/OFF or trip position.
  • the first resilient member 120 is connected at one end thereof to an upper end of the manipulation lever 110, and connected at a lower end thereof to a longitudinal end of a fourth link 540 described below.
  • first resilient member 120 may be directly connected to one end of the mover 400.
  • the locking member 200 is disposed at an inner upper end of the housing 20 described below, and provides a latch structure for latching the manipulation lever 110 at the OFF position.
  • the locking member 200 may include a nail 210 disposed at one side of the manipulation lever 110 and a latch holder 220.
  • the nail 210 is disposed to be rotated in opposite directions, and interlocks with a multi-articulate link member 500 to be rotated to a latch or release position.
  • the latch holder 220 is disposed to be rotated in opposite directions, and interlocks with the link member 500 such that, when the nail 210 is rotated to a release position, the latch holder 220 is rotated in conjunction with the nail 210 to be released from the manipulation lever 110.
  • the manipulation lever 110 may further include a latch 230 for pushing and rotating the latch holder 220 in the clockwise direction, or for maintaining a latch state with the latch holder 220 during normal operation thereof.
  • the manipulation lever 110 may further include a third spring (not shown) applying resilient force to return the nail 210 to an original position, and a fourth spring (not shown) applying resilient force to return the latch holder 220 to an original position.
  • the third spring may be a coil spring applying compressive force.
  • the fourth spring may be a torsion spring coupled to a rotary shaft of the latch holder 220.
  • the stator 300 is fixed to an inner lower end of the housing 20 described below and may be a conductor such that electric current is induced to flow inwards.
  • stator 300 is disposed to correspond to opposite vertical directions such that the vertical directions thereof do not meet.
  • the mover 400 is rotated to the stator 300 and an ON/OFF or trip position upon generation of abnormal current.
  • a rotary shaft formed at one end of the body 2 of the mover 400 is rotatably coupled at one end thereof to the housing 20 and an opposite end of the rotary shaft selectively forms a contact with the stator 300 to limit current.
  • a stationary contact 310 and a movable contact 410 are brazed to the stator 300 and the mover 400, respectively.
  • a rear end of the stationary contact 310 is embossed to function as an arc runner (not shown).
  • the multi-articulate member 500 interlocks with the manipulation lever 110 rotated to the OFF position to release the locking member 200.
  • the link member 500 includes a first link 510, which is connected at one longitudinal end thereof to the mover 400 to interlock with the manipulation lever 110 when the manipulation lever 110 is rotated to the OFF position.
  • the link member 500 further includes a second link 520, which is connected at one longitudinal end thereof to the other end of the first link 510 to interlock with the first link 510.
  • the link member 500 further includes a third link 530, which is connected at one longitudinal end thereof to the other end of the second link 520 to rotate about a rotational axis in conjunction with the second link, and which pushes and releases the locking member 200 at the other end of the third link 530 rotated in an opposite direction.
  • a third link 530 which is connected at one longitudinal end thereof to the other end of the second link 520 to rotate about a rotational axis in conjunction with the second link, and which pushes and releases the locking member 200 at the other end of the third link 530 rotated in an opposite direction.
  • the longitudinal ends of the first link 510 and the second link 520 connected to each other are bent upwards.
  • the longitudinal end of the third link 530 is rotated laterally and the other end of the third link 530 may push one end of the locking member 200 to release the locking member 200.
  • the third link 530 may be provide at a lower end thereof with a second resilient member 600 applying compressive force to the second link 520.
  • the second resilient member 600 applies compressive force returning the first link 510, the second link 520, and the third link 530 to their original positions when the manipulation lever 110 is rotated to the ON position.
  • the link member 500 does not interfere with the manipulation lever 110 as the link member 500 is rotated in conjunction with the rotation of the mover 400.
  • the link member 500 interlocks with the manipulation lever 110 only when the stationary contact of the stator 300 and the movable contact 410 of the mover 400 are fused to each other.
  • the mover 400 may be provided at one side thereof with a fourth link 540, to which a longitudinal end of the mover 400 is rotatably connected.
  • the first resilient member 120 is connected at opposite ends thereof to the other end of the fourth link 540 and the manipulation lever 110 to apply tensile force, respectively.
  • the fourth link 540 is rotated by a predetermined angle to the ON position of the manipulation lever 110 to change an installation angle of the first resilient member 120.
  • the present invention can maintain the ON position of the manipulation lever 110 even when the contacts between the mover 400 and the stator 300 are fused to each other by an abnormal state of the circuit breaker 1 for electric wiring.
  • a user can easily recognize an abnormal state of the contact and can decrease the risk of an accident even upon incorrect manipulation of the manipulation lever.

Landscapes

  • Breakers (AREA)

Claims (7)

  1. Dispositif de déclenchement comprenant :
    un mécanisme de coupure comprenant un levier de manipulation (110) tourné entre des positions En circuit/Hors circuit ou des positions de déclenchement et un premier élément élastique (120) ramenant le levier de manipulation dans une position En circuit ;
    un élément de blocage (200) verrouillant le levier de manipulation (110) dans une position Hors circuit ;
    un élément fixe (300) constitué par un conducteur tel qu'un courant est induit de manière à s'écouler vers l'intérieur ;
    un élément mobile (400) tourné de façon à entrer en contact avec l'élément fixe (300) ou à en être séparé lors de la génération d'un courant anormal ; et
    une tringlerie à plusieurs articulations (500) s'enclenchant avec le levier de manipulation (110) tourné dans la position Hors circuit de façon à débloquer l'élément de blocage (200) lorsque l'élément mobile (400) et l'élément fixe (300) sont fondus l'un à l'autre lors de la génération d'un courant anormal ;
    dans lequel la tringlerie à plusieurs articulations (500) comprend :
    une première tringle (510) rattachée à une extrémité longitudinale de celle-ci à l'élément mobile (400) de façon à s'enclencher avec le levier de manipulation (110) lorsque le levier de manipulation (110) est tourné dans la position Hors circuit ;
    une deuxième tringle (520) rattachée au niveau d'une extrémité longitudinale de celle-ci à l'autre extrémité de la première tringle (510) pour s'enclencher avec la première tringle (510) ;
    caractérisé en ce que la tringlerie à plusieurs articulations comprend en outre une troisième tringle (530) rattachée à une extrémité longitudinale de celle-ci à l'autre extrémité de la deuxième tringle (520) de façon à tourner autour d'un axe de rotation en conjonction avec la deuxième tringle (520) ; et en ce que
    les extrémités longitudinales de la première (510) et de la deuxième (520) tringle rattachées l'une à l'autre sont pliées vers le haut et déployées latéralement en conjonction avec le levier de manipulation (110) tourné dans la position Hors circuit lorsque l'élément fixe (300) et l'élément mobile (400) sont fondus l'un à l'autre, et l'extrémité longitudinale de la troisième tringle (530) est tournée latéralement lorsque la deuxième tringle (520) est déployée latéralement.
  2. Dispositif de déclenchement selon la revendication 1, dans lequel la troisième tringle (530) est pourvue, à une extrémité plus basse de celle-ci, d'un deuxième élément élastique (600) appliquant une force de compression sur la deuxième tringle (520).
  3. Dispositif de déclenchement selon la revendication 1, dans lequel l'élément mobile (400) est pourvu à une extrémité de celui-ci d'une quatrième tringle (540) à laquelle une extrémité longitudinale de l'élément mobile (400) est rattachée de manière rotative, et le premier élément élastique (120) est rattaché à des extrémités opposées de celui-ci à une extrémité opposée de la quatrième tringle (540) et au levier de manipulation (110), respectivement
  4. Dispositif de déclenchement selon la revendication 3, dans lequel, lorsque l'élément mobile (400) et l'élément fixe (300) sont fondus l'un à l'autre, la quatrième tringle (540) est tournée d'un angle prédéterminé dans la position En circuit du levier de manipulation (110) pour changer un angle d'installation du premier élément élastique (120).
  5. Dispositif de déclenchement selon la revendication 1, dans lequel, lorsque l'élément fixe (300) et l'élément mobile (400) ne sont pas fondus, la tringlerie (500) n'entrave pas le levier de manipulation (110) en s'enclenchant avec l'élément mobile (400) en conjonction avec la rotation de l'élément mobile (400).
  6. Dispositif de déclenchement selon la revendication 1, dans lequel l'élément de blocage (200) comprend :
    un clou (210) disposé de façon à être tourné dans des sens opposés et tourné de façon à bloquer ou à débloquer une position en conjonction avec la tringlerie à plusieurs articulations (500) ;
    un troisième ressort appliquant une force élastique pour ramener le clou (210) dans sa position d'origine ;
    un porte-verrou (220) disposé de façon à être tourné dans des sens opposés et tourné en conjonction avec la tringlerie (500) de façon à être dégagé du levier de manipulation (110) lorsque le clou (210) est tourné dans la position de déblocage en conjonction avec la tringlerie (500) ; et
    un quatrième ressort appliquant une force élastique pour ramener le porte-verrou (220) dans sa position d'origine.
  7. Disjoncteur pour un câblage électrique (10) comprenant :
    un boîtier (20) ; et
    le dispositif de déclenchement selon la revendication 1 disposé dans le boîtier.
EP12858425.7A 2011-12-16 2012-12-14 Dispositif de déclenchement et disjoncteur pour câblage électrique le comprenant Active EP2736064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110136253A KR101326987B1 (ko) 2011-12-16 2011-12-16 트립장치 및 이를 갖는 배선용 차단기
PCT/KR2012/010894 WO2013089475A1 (fr) 2011-12-16 2012-12-14 Dispositif de déclenchement et coupe-circuit pour câblage électrique le comprenant

Publications (3)

Publication Number Publication Date
EP2736064A1 EP2736064A1 (fr) 2014-05-28
EP2736064A4 EP2736064A4 (fr) 2015-04-29
EP2736064B1 true EP2736064B1 (fr) 2017-06-14

Family

ID=48612839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12858425.7A Active EP2736064B1 (fr) 2011-12-16 2012-12-14 Dispositif de déclenchement et disjoncteur pour câblage électrique le comprenant

Country Status (4)

Country Link
EP (1) EP2736064B1 (fr)
KR (1) KR101326987B1 (fr)
CN (1) CN103797558B (fr)
WO (1) WO2013089475A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101981596B1 (ko) * 2015-03-31 2019-05-23 현대일렉트릭앤에너지시스템(주) 배선용 차단기의 개폐기구 및 그 조립방법
KR101749981B1 (ko) 2016-02-12 2017-06-22 엘에스산전 주식회사 다극 배선용 차단기
KR20180099330A (ko) * 2017-02-28 2018-09-05 엘에스산전 주식회사 주접점 인터록 기능을 갖는 배선용 차단기

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050051414A1 (en) * 2003-09-10 2005-03-10 General Electric Company Circuit breaker handle block

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JP3972782B2 (ja) 2002-09-26 2007-09-05 富士電機機器制御株式会社 回路しゃ断器
JP4059058B2 (ja) * 2002-10-28 2008-03-12 富士電機機器制御株式会社 回路しゃ断器
JP4857881B2 (ja) * 2006-04-14 2012-01-18 富士電機機器制御株式会社 回路遮断器
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KR100914204B1 (ko) 2007-08-10 2009-08-27 엘에스산전 주식회사 콘택트 온 기구를 가진 배선용 차단기
KR100914203B1 (ko) * 2007-08-10 2009-08-27 엘에스산전 주식회사 컨택트 온 기구를 갖는 배선용 차단기
KR101085267B1 (ko) 2010-06-07 2011-11-22 엘에스산전 주식회사 한류형 배선용차단기의 트립기구

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US20050051414A1 (en) * 2003-09-10 2005-03-10 General Electric Company Circuit breaker handle block

Also Published As

Publication number Publication date
EP2736064A1 (fr) 2014-05-28
WO2013089475A1 (fr) 2013-06-20
KR101326987B1 (ko) 2013-11-13
EP2736064A4 (fr) 2015-04-29
CN103797558B (zh) 2016-10-26
KR20130068845A (ko) 2013-06-26
CN103797558A (zh) 2014-05-14

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