EP2061061B1 - Disjoncteur de fuite à la terre - Google Patents

Disjoncteur de fuite à la terre Download PDF

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Publication number
EP2061061B1
EP2061061B1 EP06791265A EP06791265A EP2061061B1 EP 2061061 B1 EP2061061 B1 EP 2061061B1 EP 06791265 A EP06791265 A EP 06791265A EP 06791265 A EP06791265 A EP 06791265A EP 2061061 B1 EP2061061 B1 EP 2061061B1
Authority
EP
European Patent Office
Prior art keywords
tripping mechanism
leakage
lever
latch
breaker
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.)
Not-in-force
Application number
EP06791265A
Other languages
German (de)
English (en)
Other versions
EP2061061A1 (fr
EP2061061A4 (fr
Inventor
Bangquan He
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.)
ZHEJIANG DINWAY SCI-TECH Co Ltd
Original Assignee
ZHEJIANG ZHIMING ELECTRIC IMP
Zhejiang Zhiming Electric Imp & Exp 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 ZHEJIANG ZHIMING ELECTRIC IMP, Zhejiang Zhiming Electric Imp & Exp Co Ltd filed Critical ZHEJIANG ZHIMING ELECTRIC IMP
Publication of EP2061061A1 publication Critical patent/EP2061061A1/fr
Publication of EP2061061A4 publication Critical patent/EP2061061A4/fr
Application granted granted Critical
Publication of EP2061061B1 publication Critical patent/EP2061061B1/fr
Not-in-force 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H73/48—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 having both electrothermal and electromagnetic automatic release
    • H01H73/50—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 having both electrothermal and electromagnetic automatic release reset by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • 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

Definitions

  • the present invention relates to a leakage circuit breaker, more particularly, to a leakage circuit breaker integrated with functions of overload protection, short circuit protection and earth leakage protection.
  • the jumper of the breaker in the conventional product is made in metal material, and the latch is made in plastic material, both of the materials having different features bring a larger impact friction to the latch, so that the latch is prone to deform, and the stability and life span of the mechanism are reduced; also, the conventional leakage tripping mechanism has a complex structure, and the handle is often unable to be operated to its position when cooperating with other members and the trip tends to fail upon the earth leakage, also the cost thereof is high; furthermore, a hard plate is welded between the conventional conductive piece and the wiring plate of the bimetal system, the displacement of the bimetal piece is easy to caused when the conductive piece is connected to the external leads and fixed, so that the accuracy and reliability of the product is seriously affected; moreover, the rated current of the conventional product only is 6 to 60A, and the circuit breaking ability is only 6KA; also, there is no state indicator for the contact.
  • Document GB 2 295 276 discloses a device according to the preamble of claim 1.
  • an object of present invention is to provide a leakage circuit breaker integrated with functions of overload protection, short circuit protection and earth leakage protection.
  • the present invention provides a leakage circuit breaker comprising a housing, a leakage breaker tripping mechanism, a bimetal system, wherein the leakage breaker tripping mechanism is comprised of a breaker tripping mechanism and a leakage tripping mechanism, wherein a lever A of the breaker tripping mechanism is connected to a lever B of the leakage tripping mechanism to form a double-deck tripping mechanism through a joint shaft; the bimetal system has a bimetal piece having one end connected to one end of a link to form an L-shape, the other end of the link is connected to a latch A of the breaker tripping mechanism.
  • a handle is connected with one end of a handle link, the other end of the handle link is connected with a jumper A and a state indicator, the latch A locked with the jumper A is connected with the lever A and a movable contact A, the movable contact A is connected with one end of a spring A, the other end of the spring A is fixed with a pin fixed to the housing, a static contact A corresponding to the movable contact A is connected with the bimetal system through a wire.
  • the breaker tripping mechanism is further provided with an electromagnetic system comprising an iron core and a pusher.
  • the lever B thereof is connected with a movable contact B, one end of the lever B is abutted against a long arm end of a restoring lever, a static contact B corresponding to the movable contact B is connected with a wire frame through a wire, a jumper B, a latch B and a clap restoring piece are connected with respective pins of the housing, a short arm end of the restoring lever is engaged with one end of the latch B, the other end of the latch B is engaged with the jump B (26), the other end of the jumper B is abutted against a movable end of the clap restoring piece.
  • the leakage tripping mechanism is further provided with a toroidal magnetic core, an output line of the toroidal magnetic core is connected with a trip, a trip pusher is provided inside of the trip.
  • a flexible joint block is employed to connect between a conductive piece and a wiring plate.
  • the jumper and latch in the present invention are made of synthetic plastics with high intensity, high-temperature resistance, and good abrasion resistance, so that the deformation of the latch is avoided and the stability and the life span of the tripping mechanism is extended;
  • the leakage breaker tripping mechanism of the present invention has a simple structure, it also has a stable capability, a flexible tripping, a good reliability on circuit breaking, and it is easy to be assembled, further more, it has reduced cost and improved efficiency.
  • a flexible joint block is employed between the conductive piece and the wiring plate. Accordingly, the connection between the conductive piece and the wiring plate is easy to implement and the displacement of the conductive piece is not easy to occur when connecting with the lead, such that the stability thereof is significantly improved.
  • the present invention has a compact structure, small volume, light weight, and flexible operability, it also has the function of indicating open circuit of neutral line and state of contacts so that it is easy to identify the contacting status of the contact.
  • the duplex connecting terminal can use bus line, the wiring screw of the complex slot has a larger torsional moment; therefore, the wire is fastened and secured.
  • the present invention has good reliability and is advanced in technology.
  • the present invention is adapted to a circuit having AC of 50Hz, rated voltage of up to 230V, rated current of 63A, the circuit breaking capability is 1OKA, and a contact state indicator is provided; both sides of the breaker have double functional connecting terminals which can connect with the bus line and single core lead, so it has good connecting performance. It can be served as short circuit protection, leakage protection and the overload protection, which can prevent the fire and people accident caused by leakage circuit or electric shock from occurrence.
  • the present invention provides a leakage circuit breaker comprising a housing (1), a leakage breaker tripping mechanism, a bimetal system, wherein the leakage breaker tripping mechanism is comprised of a breaker tripping mechanism and a leakage tripping mechanism, a lever A (10) of the breaker tripping mechanism and a lever B (23) of the leakage tripping mechanism are connected through a lever joint shaft (9) to form double-decked tripping mechanism; the bimetal system has a bimetal piece (15) having one end connected to one end of a link (14) to form L-shape, the other end of the link (14) is connected to a latch A (6) of the breaker tripping mechanism.
  • a handle (4) is connected with one end of a handle link (5), the other end of the handle link (5) is connected with a jumper A (7) and a state indicator (8), the latch A (6) locked with the jumper A (7) is connected with the lever A and a movable contact A (11), the movable contact A (11) is connected with one end of a spring A (13), the other end of the spring A (13) is fixed to a pin fixed to the housing (1), a static contact A (12) corresponding to the movable contact A (11) is connected with the bimetal system through a wire.
  • the breaker tripping mechanism is further provided with an electromagnetic system (2) comprising an iron core and a pusher (3).
  • the lever B (23) thereof is connected with a movable contact B (21), one end of the lever B (23) is abutted against a long arm end of a restoring lever (24), a static contact B (22) corresponding to the movable contact B (21) is connected with a wire frame (20) through a wire, a jumper B (26), a latch B (25) and a clap restoring piece (27) are connected with respective pins fixed to the housing (1), the shorter end of the restoring lever (24) is engaged with one end of the latch B (25), the other end of the latch B (25) is engaged with the jumper B (26), the other end of the jumper B (26) is abutted against a movable end of the clap restoring piece (27).
  • the leakage tripping mechanism is further provided with a toroidal magnetic core (32), an output line of coils around the toroidal magnetic core (32) is connected with a trip (31), a trip pusher (30) is provided inside of
  • a flexible joint block (18) is employed to connect between a conductive piece (17) and a wiring plate (19).
  • the present invention is integrated with functions of overload protection, short circuit protection and leakage protection as described as followed:
  • Leakage Protection a simulated leakage is generated when the test button (28) is pushed.
  • the coils around the toroidal magnetic core (32) generate a weak voltage when the leakage current flows around the toroidal magnetic core (32), such voltage signal generates a magnetic field in the coils of the trip (31), which pulls the trip pusher (30).
  • the trip pusher (30) pushes the clap restoring piece (27), then to push the jumper B (26) to make it separate from the latch B (25), and at the same time, the latch B (25) drives the pin (29) connected with the latch A so that the latch A(6) is separated from the jumper A (7); under the action of the tension spring (13), the movable contact A (11) and the static contact A (12) as well as the movable contact B (21) and the static contact B (22) are rapidly separated from each other, respectively. Thereby, the handle (4) is restored to the initial state and the state indicator (8) is turned from red to green.
  • the flexible joint block (18) is employed to connect between the conductive piece (17) and the wiring plate (19) in the present invention, when the wiring frame (20) is connected with external lead and fixes the screw (16), it won't cause the displacement of the bimetal piece (15) and it is easy to assemble.
  • the conventional conductive system for the bimetal piece employs a hard plate welding between the conductive piece (17) and the wiring plate (19); when the wire frame (20) is externally connected with the lead and fixes the screw (16), the displacement of the bimetal piece (15) is easily caused, which significantly affects the accuracy of the product.
  • the present invention employs a flexible joint block (18) so that the stability of the product is notably improved.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Keying Circuit Devices (AREA)

Claims (3)

  1. Disjoncteur de fuite à la terre, comprenant : un boîtier (1), un mécanisme de déclenchement du disjoncteur de fuite à la terre et un système bimétal, dans lequel :
    le mécanisme de déclenchement du disjoncteur de fuite à la terre est constitué d'un mécanisme de déclenchement du disjoncteur et d'un mécanisme de déclenchement de fuite, un levier A (10) du mécanisme de déclenchement du disjoncteur et un levier B (23) du mécanisme de déclenchement de fuite sont reliés par l'intermédiaire d'un arbre d'articulation (9) des leviers pour former un mécanisme de déclenchement à deux étages ;
    le système bimétal comporte une pièce bimétal (15) dont une extrémité est reliée à une extrémité d'une biellette (14) pour réaliser une forme en L, l'autre extrémité de la biellette (14) étant reliée à un cliquet A (6) du mécanisme de déclenchement du disjoncteur ;
    ledit mécanisme de déclenchement du disjoncteur comprend un système électromagnétique (2), une force générée par le système électromagnétique (2) ou la biellette (14) étant transmise au cliquet (6), une action de déclenchement du cliquet (6) interrompant un contact mobile et un contact statique ;
    ledit mécanisme de déclenchement de fuite génère un champ magnétique de fuite qui tire un pousseur de déclenchement (30), le pousseur de déclenchement (30) étant utilisé pour le déclenchement du cliquet (6) poussé par une pièce de rappel à claquement (7), le contact mobile et le contact statique étant interrompus par l'action d'un ressort de tension (13) ;
    caractérisé en ce que, dans le mécanisme de déclenchement de fuite, le levier B (23) de celui-ci est relié à un contact mobile B (21), une extrémité du levier B (23) est mise en butée contre une extrémité de bras longue d'un levier de rappel (24), un contact statique B (22) correspondant au contact mobile B (21) est relié à une structure filaire (20) par l'intermédiaire d'un fil, un cavalier B (26), un cliquet B (25) et une pièce de rappel à craquement (27) sont reliés à des axes respectifs fixées au boîtier (1), une extrémité courte du levier de rappel (24) est mise en prise avec une extrémité du cliquet B (25), l'autre extrémité du cliquet B (25) est mise en rise avec le cavalier B (26), l'autre extrémité du cavalier B (26) est mise en butée contre une extrémité mobile de la pièce de rappel à claquement (27), le mécanisme de déclenchement de fuite est pourvu, en outre, d'un transformateur (32), une ligne de sortie du transformateur (32) est reliée à un déclencheur (31), un pousseur de déclenchement (30) est prévu à l'intérieur du déclencheur (31).
  2. Disjoncteur de fuite à la terre selon la revendication 1, caractérisé en ce que :
    dans le mécanisme déclencheur du disjoncteur, une poignée (4) est reliée à une extrémité d'une biellette (5) de la poignée, l'autre extrémité de la biellette (5) de la poignée est reliée à un cavalier A (7) et à un indicateur d'état (8), le cliquet A (6) verrouillé mutuellement avec le cavalier A (7) est relié au levier A (10) et à un contact mobile A (11), le contact mobile A (11) est relié à une extrémité d'un ressort A (13), l'autre extrémité du ressort A (13) est fixée à un axe fixé au boîtier (1), un contact statique A (12) correspondant au contact mobile A (11) est relié au système bimétal par l'intermédiaire d'un fil, le mécanisme déclencheur du disjoncteur est pourvu, en outre, d'un système électromagnétique (2) comprenant un noyau de fer et un pousseur (3).
  3. Disjoncteur de fuite à la terre selon la revendication 1, caractérisé en ce que :
    un bloc d'articulation flexible (18) est utilisé pour connexion entre une pièce conductrice (17) et une plaque de câblage (19).
EP06791265A 2006-08-17 2006-10-16 Disjoncteur de fuite à la terre Not-in-force EP2061061B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2006200448930U CN2938385Y (zh) 2006-08-17 2006-08-17 漏电断路器
PCT/CN2006/002721 WO2008022494A1 (fr) 2006-08-17 2006-10-16 Disjoncteur de fuite à la terre

Publications (3)

Publication Number Publication Date
EP2061061A1 EP2061061A1 (fr) 2009-05-20
EP2061061A4 EP2061061A4 (fr) 2010-03-17
EP2061061B1 true EP2061061B1 (fr) 2010-11-24

Family

ID=38362411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791265A Not-in-force EP2061061B1 (fr) 2006-08-17 2006-10-16 Disjoncteur de fuite à la terre

Country Status (5)

Country Link
EP (1) EP2061061B1 (fr)
CN (1) CN2938385Y (fr)
AT (1) ATE489720T1 (fr)
DE (1) DE602006018541D1 (fr)
WO (1) WO2008022494A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943847B1 (fr) * 2009-03-31 2011-04-01 Schneider Electric Ind Sas Dispositif de declenchement thermique pour un appareil de protection electrique
FR2962254B1 (fr) * 2010-07-02 2012-07-13 Schneider Electric Ind Sas Dispositif de raccordement electrique entre le pied d'un bilame et une plage de borne dans un appareil de coupure electrique, et disjoncteur comportant un tel dispositif
CN102592899B (zh) * 2012-03-16 2014-05-07 乐清市捷利电气有限公司 漏电断路器
CN102610457B (zh) * 2012-03-22 2014-04-30 浙江鼎威科技有限公司 漏电断路器的漏电测试与漏电复位按钮为一体的装置
KR101647915B1 (ko) * 2012-07-11 2016-08-11 미쓰비시덴키 가부시키가이샤 회로 차단기
CN103928270B (zh) * 2013-12-31 2016-04-20 上海诺雅克电气有限公司 小型断路器的操作机构
DE102014208564A1 (de) * 2014-05-07 2015-11-12 Siemens Aktiengesellschaft Schutzschaltgerät mit zwei Auslösemechaniken mit unterschiedlichen Hebelverhältnissen
CN107146745B (zh) * 2016-03-01 2020-02-18 浙江正泰电器股份有限公司 电子式漏电断路器
CN106373836B (zh) * 2016-11-16 2018-07-06 中欧电气有限公司 一种保护机构及具有其的断路器
CN106653511B (zh) * 2017-02-24 2019-12-27 德力西电气有限公司 一种用于小型断路器的新型操作控制装置
CN108122716B (zh) * 2018-01-18 2023-11-17 温州奥来电器有限公司 一种漏电断路器
CN108054061B (zh) * 2018-01-18 2023-11-24 温州奥来电器有限公司 一种漏电断路器的漏电机构
CN108376631B (zh) * 2018-04-10 2024-03-29 首瑞（天津）电气设备有限公司 一种小体积1p+n漏电断路器
CN109686627A (zh) * 2019-01-22 2019-04-26 浙江明晖智能电气有限公司 多功能断路器的多级联动系统
CN117916842A (zh) * 2021-09-07 2024-04-19 阿尔芬纳公司 改进和简化的多功能二杆机构以及改进微型断路器
CN114792613B (zh) * 2022-03-30 2023-07-25 中群电气有限公司 一种过载快速恢复断路器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3210820B2 (ja) * 1994-11-15 2001-09-25 松下電工株式会社 漏電遮断器
DE10205311B4 (de) * 2002-02-08 2006-06-29 Siemens Ag Schaltgerät
CN2529375Y (zh) * 2002-02-19 2003-01-01 周圣博 双极漏电断路器
CN2524360Y (zh) * 2002-03-05 2002-12-04 乐清市中南开关厂 一种新型的塑壳式漏电断路器

Also Published As

Publication number Publication date
CN2938385Y (zh) 2007-08-22
ATE489720T1 (de) 2010-12-15
EP2061061A1 (fr) 2009-05-20
EP2061061A4 (fr) 2010-03-17
WO2008022494A1 (fr) 2008-02-28
DE602006018541D1 (de) 2011-01-05

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