EP3577675B1 - Disjoncteur mono-étage - Google Patents

Disjoncteur mono-étage Download PDF

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Publication number
EP3577675B1
EP3577675B1 EP18702694.3A EP18702694A EP3577675B1 EP 3577675 B1 EP3577675 B1 EP 3577675B1 EP 18702694 A EP18702694 A EP 18702694A EP 3577675 B1 EP3577675 B1 EP 3577675B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
assembly
circuit board
accommodation chamber
stage circuit
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
EP18702694.3A
Other languages
German (de)
English (en)
Other versions
EP3577675A1 (fr
Inventor
Chang Chun Hu
Jean-Mary Martel
Shou Qi XU
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3577675A1 publication Critical patent/EP3577675A1/fr
Application granted granted Critical
Publication of EP3577675B1 publication Critical patent/EP3577675B1/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
    • 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
    • H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop
    • 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
    • H01H83/04—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 with testing means for indicating the ability of the switch or relay to function properly
    • 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • 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
    • H01H9/50—Means for detecting the presence of an arc or discharge
    • 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
    • H01H2083/201—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 abnormal electrical condition being an arc fault
    • 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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole

Definitions

  • the present invention relates to a low-voltage circuit breaker, and more particularly to a single-stage circuit breaker.
  • the low-voltage circuit breaker is a switch appliance which can not only connect and disconnect a normal-load current and an overload current, but also can connect and disconnect a short-circuit current.
  • the low-voltage circuit breaker further has, in a circuit, some protection functions, such as overload, short circuit, under-voltage and leakage protection.
  • the miniature circuit breaker referred to as MCB for short
  • MCB the most widely used terminal protection appliance in building electrical terminal power distribution devices, and can provide short circuit, overload, over-voltage and other line protection.
  • the residual current device referred to as RCD for short, having over-current protection, can quickly cut off the fault power in a short time to protect the safety of people and electrical equipment, playing the function of overload, short circuit and leakage protection.
  • the arc fault detection device is also an electric line protection device, and the main function thereof is to detect and identify a dangerous grounding arc fault, a parallel arc fault and a series arc fault, and to drive an action of a device for disconnecting the current in a timely manner, so as to prevent the occurrence of electrical fire.
  • AFDD electric line protection device
  • the advantages of small size and strong function are achieved, and a leakage current protection function is integrated, so that automatic monitoring and protection of fault arc and leakage current are achieved, effectively guaranteeing the safety of low-voltage power distribution lines and electrical equipment as well people.
  • a single-stage circuit breaker with the features of the first part of claim 1 is known from US 2015/068881 A1 . Further prior art is disclosed by EP 2 840 587 A1 .
  • An object of the present invention is to provide a single-stage circuit breaker, which can not only meet the requirements for arc fault detection, leakage protection and overload over-current protection at the same time, but also can ensure the compactness of the internal structural layout of the circuit breaker.
  • the present invention provides a single-stage circuit breaker, comprising a shell comprising a first housing, a second housing and a mounting housing located therebetween, a first accommodation chamber being formed between the first housing and the mounting housing, and a second accommodation chamber being formed between the second housing and the mounting housing; an electromagnetic trip device arranged in the first accommodation chamber; a first contact assembly and a first execution assembly used for cooperating with the electromagnetic trip device and located at one side of the first accommodation chamber; an arc extinguishing device accommodated between the electromagnetic protection device and the first contact assembly; a thermal protection and arc fault detection device located near the arc extinguishing device and in the first accommodation chamber; an arc fault and leakage trip device arranged in the second accommodation chamber; a second contact assembly and a second execution assembly used for cooperating with the arc fault and leakage trip device and located at one side of the second accommodation chamber; and a circuit board assembly for arc fault handling and leakage protection, wherein the first execution assembly and the second execution assembly move simultaneously with an operating handle via a common
  • the single-stage circuit breaker has a first current path and a second current path, the first current path being located in the first accommodation chamber, and the second current path being located in the second accommodation chamber.
  • the circuit board assembly comprises a first circuit board and a second circuit board, wherein the first circuit board is accommodated in the first accommodation chamber, and the second circuit board is accommodated in the second accommodation chamber, in order to better achieve the compactness of the internal structure of the circuit breaker.
  • the single-stage circuit breaker further comprises an auxiliary contact assembly, which is arranged inside the second accommodation chamber for effecting safe electrical isolation of the circuit board assembly, thereby improving the safety and reliability of the entire circuit breaker.
  • one end of the auxiliary contact assembly is electrically connected to the second circuit board, and the other end of the auxiliary contact assembly can be disconnected from or connected to the second contact assembly.
  • the first circuit board and the second circuit board are arranged in parallel to each other and at least partially overlap in a vertical direction.
  • the first circuit board and the second circuit board can be integrated as a whole.
  • the single-stage circuit breaker further comprises a multi-function button module arranged at a side portion of the shell for state displaying and function testing of the single-stage circuit breaker.
  • the single-stage circuit breaker further comprises a snap rail connection assembly arranged at an end portion of the shell for detachably connecting the single-stage circuit breaker to a corresponding snap rail, in order to increase the flexibility and reliability of the installation thereof.
  • the shell has a width of 18 mm.
  • First execution assembly 11 Arc fault and leakage trip device 23
  • Multi-function button module 12 L-pole terminals 14, 19
  • Second contact assembly 26 First contact assembly 16 Movable contact 27
  • Thermal protection and arc Stationary contact 28 fault detection device 17
  • Circuit board assembly 18 Driving member 31
  • Operating handle 32 Second circuit board 182 Auxiliary contact assembly 50
  • Locking member 20 First housing 41 Sliding member 30 Second housing 42 Second execution assembly 21 Mounting housing 43
  • Fig. 1 shows a schematic structural diagram of a single-stage circuit breaker of an embodiment of the present application.
  • the single-stage circuit breaker comprises a shell.
  • the shell comprises a first housing 41, a second housing 42, and a mounting housing 43 located therebetween.
  • a first accommodation chamber is formed between the first housing 41 and the mounting housing 43.
  • a second accommodation chamber is formed between the second housing 42 and the mounting housing 43.
  • the single-stage circuit breaker has a first current path and a second current path, wherein the first current path is located in the first accommodation chamber, and the second current path is located in the second accommodation chamber.
  • the single-stage circuit breaker further comprises an electromagnetic trip device 13, a first contact assembly 16, a first execution assembly 11, an arc extinguishing device 15, a thermal protection and arc fault detection device 17, an arc fault and leakage trip device 23, a second contact assembly 26, a second execution assembly 21, a circuit board assembly 18, and an auxiliary contact assembly 50.
  • the first execution assembly 11 and the second execution assembly 21 move simultaneously with an operating handle 32 via a common driving member 31.
  • the electromagnetic trip device 13 is arranged in the first accommodation chamber, and the first contact assembly 16 and the first execution assembly 11 are used for cooperating with the electromagnetic trip device 13 and are located at one side of the first accommodation chamber, for effecting over-current protection of the circuit breaker.
  • the arc extinguishing device 15 is accommodated between the electromagnetic protection device 13 and the first contact assembly 16, in order to facilitate the rapid extinction of the arc.
  • the thermal protection and arc fault detection device 17 is arranged near the arc extinguishing device 15 and located in the first accommodation chamber. The thermal protection and arc fault detection device 17 is used for realizing overload protection of the circuit breaker and can detect an arc fault in a timely manner and then perform a tripping action.
  • the arc fault and leakage trip device 23 is arranged in the second accommodation chamber, and the second contact assembly 26 and the second execution assembly 21 are used for cooperating with the arc fault and leakage trip device 23 and are located at one side of the second accommodation chamber, for effecting leakage protection and arc fault protection of the circuit breaker.
  • first execution assembly 16 and the second execution assembly 21 move simultaneously with an operating handle 32 via a common driving member 31. Therefore, the first execution assembly 11 and the second execution assembly 21 can be respectively actuated by the action of the handle 32, and then the first contact assembly 16 and the second contact assembly 26 are respectively actuated.
  • An L-pole main switch formed between a movable contact and a stationary contact in the first contact assembly 16 serves to control the connection and disconnection of an L-pole main loop.
  • An N-pole main switch formed between a stationary contact and a movable contact in the second contact assembly 26 serves to control the connection and disconnection of an N-pole main loop.
  • the circuit board assembly 18 of the present application can be used for realizing both arc fault handling and leakage protection functions at the same time.
  • the circuit board assembly 18 comprises a first circuit board 181 and a second circuit board 182, wherein the first circuit board 181 is accommodated in the first accommodation chamber, and the second circuit board 182 is accommodated in the second accommodation chamber, in order to better achieve the compactness of the internal structure of the circuit breaker.
  • the single-stage circuit breaker further comprises an auxiliary contact assembly 50 arranged inside the second accommodation chamber for effecting safe electrical isolation of the circuit board assembly.
  • one end of the auxiliary contact assembly 50 is electrically connected to the second circuit board 182, and the other end of the auxiliary contact assembly 50 can be disconnected from or connected to the second contact assembly 26.
  • the presence of the auxiliary contact assembly 50 is equivalent to the addition of an auxiliary switch between the circuit board assembly 18 and a right-hand wiring terminal. This allows a current loop on the board assembly 18 to be independent of the L-pole main loop and the N-pole main loop, respectively.
  • the circuit board assembly 18 when the circuit breaker is in an OFF state, the L-pole main switch and the N-pole main switch are in a switching-off state, and the auxiliary switch is also in a switching-off state, so that the circuit board assembly 18 is electrically isolated dually. Therefore, by controlling the switching on/off of the auxiliary switch, the circuit board assembly 18 can be safely and electrically isolated and the circuit board assembly 18 can be effectively prevented from being always in an energized state, so as to effectively reduce the risk of damaging the circuit board assembly 18 by over-voltage breakdown, thereby improving the safety and reliability of the whole circuit breaker.
  • the first circuit board 181 and the second circuit board 182 are arranged in parallel to each other and at least partially overlap in a vertical direction. It is to be understood that, as an optional embodiment, the first circuit board 181 and the second circuit board 182 can also be integrated as a whole.
  • the single-stage circuit breaker further comprises a multi-function button module 12 arranged at a side portion of the shell for state displaying and function testing of the single-stage circuit breaker.
  • the single-stage circuit breaker further comprises a snap rail connection assembly arranged at an end portion of the shell for detachably connecting the single-stage circuit breaker to a corresponding snap rail, in order to increase the flexibility and reliability of the installation thereof.
  • the snap rail connection assembly further comprises a locking member 20 and a sliding member 30.
  • the shell has a width of 18 mm.
  • the circuit breaker of the present application can better meet various requirements for line protection, and can not only combine various line protection functions such as detection of leakage, over-current and disconnection and fault detection possessed by the MCB, RCD and AFDD, but also can maintain a relatively compact structural layout, thereby effectively guaranteeing the safety of low-voltage power distribution lines and electrical equipment as well as people.
  • exemplary means “serving as an instance, example, or description”, and any "exemplary” illustration and embodiment herein should not be interpreted as a more preferred or a more advantageous technical solution.

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  • Breakers (AREA)

Claims (7)

  1. Disjoncteur mono-étage, comprenant
    une coque comprenant un premier boîtier (41), un second boîtier (42), et un boîtier de montage (43) situé entre eux, une première chambre de logement étant formée entre le premier boîtier (41) et le boîtier de montage (43), et une seconde chambre de logement étant formée entre le second boîtier (42) et le boîtier de montage (43);
    un dispositif de déclenchement électromagnétique (13) agencé dans la première chambre de logement;
    un premier ensemble de contact (16) et un premier ensemble d'exécution (11) coopérant avec le dispositif de déclenchement électromagnétique (13) et situés au niveau d'un côté de la première chambre de logement;
    un dispositif d'extinction d'arc (15) logé entre le dispositif de protection électromagnétique (13) et le premier ensemble de contact (16);
    un dispositif de protection thermique et de détection de défaut d'arc (17) situé à proximité du dispositif d'extinction d'arc (15) et dans la première chambre de logement;
    un dispositif de déclenchement de défaut d'arc et de fuite (23) agencé dans la seconde chambre de logement ;
    un second ensemble de contact (26) et un second ensemble d'exécution (21) coopérant avec le dispositif de déclenchement de défaut d'arc et de fuite (23) et situés au niveau d'un côté de la seconde chambre de logement; et
    un ensemble carte de circuit imprimé (18) pour la gestion de défauts d'arc et la protection contre les fuites,
    dans lequel un commutateur principal de pôle L est formé entre un contact mobile et un contact stationnaire dans le premier ensemble de contact (16),
    dans lequel un commutateur principal de pôle N est formé entre un contact stationnaire et un contact mobile dans le second ensemble de contact (26),
    dans lequel le premier ensemble d'exécution (11) et le second ensemble d'exécution (21) se déplacent simultanément avec une manette de fonctionnement (32) par le biais d'un élément d'entraînement commun (31), de sorte que le premier ensemble d'exécution (11) et le second ensemble d'exécution (21) sont respectivement actionnés par l'action de la manette (32), puis le premier ensemble de contact (16) et le second ensemble de contact (26) sont respectivement actionnés,
    caractérisé en ce que
    l'ensemble carte de circuit imprimé (18) comprend une première carte de circuit imprimé (181) et une seconde carte de circuit imprimé (182), dans lequel la première carte de circuit imprimé (181) est logée dans la première chambre de logement, et la seconde carte de circuit imprimé (182) est logée dans la seconde chambre de logement,
    dans lequel un ensemble de contact auxiliaire (50) est agencé à l'intérieur de la seconde chambre de logement, une extrémité de l'ensemble de contact auxiliaire (50) étant reliée électriquement à la seconde carte de circuit imprimé (182) et l'autre extrémité de l'ensemble de contact auxiliaire (50) pouvant être désaccouplée du ou reliée au second ensemble de contact (26), l'ensemble de contact auxiliaire (50) étant équivalent à l'addition d'un commutateur auxiliaire,
    dans lequel, lorsque le disjoncteur mono-étage est dans un état allumé, le commutateur principal de pôle L et le commutateur principal de pôle N sont dans un état allumé, le commutateur auxiliaire est aussi dans un état allumé,
    dans lequel, lorsque le disjoncteur est dans un état éteint, le commutateur principal de pôle L et le commutateur principal de pôle N sont dans un état éteint, et le commutateur auxiliaire est aussi dans un état éteint.
  2. Disjoncteur mono-étage selon la revendication 1, le disjoncteur mono-étage ayant un premier trajet de courant et un second trajet de courant, le premier trajet de courant étant situé dans la première chambre de logement, et le second trajet de courant étant situé dans la seconde chambre de logement.
  3. Disjoncteur mono-étage selon la revendication 1 ou 2, dans lequel la première carte de circuit imprimé (181) et la seconde carte de circuit imprimé (182) sont agencées de manière parallèle l'une à l'autre et se chevauchent au moins partiellement dans une direction verticale.
  4. Disjoncteur mono-étage selon la revendication 1 ou 2, dans lequel la première carte de circuit imprimé (181) et la seconde carte de circuit imprimé (182) peuvent être intégrées d'un seul tenant.
  5. Disjoncteur mono-étage selon l'une quelconque des revendications 1 à 4, comprenant en outre un module de bouton multifonction (12) agencé au niveau d'une partie latérale de la coque pour l'affichage d'état et le test de fonctionnement du disjoncteur mono-étage.
  6. Disjoncteur mono-étage selon l'une quelconque des revendications 1 à 5, comprenant en outre un ensemble de raccordement sur rail de clipsage agencé au niveau d'une partie d'extrémité de la coque pour raccorder de manière amovible le disjoncteur mono-étage à un rail de clipsage correspondant.
  7. Disjoncteur mono-étage selon l'une quelconque des revendications 1 à 6, dans lequel la coque a une largeur de 18 mm.
EP18702694.3A 2017-02-04 2018-02-01 Disjoncteur mono-étage Active EP3577675B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710064294.8A CN108400066B (zh) 2017-02-04 2017-02-04 单级断路器
PCT/EP2018/052557 WO2018141866A1 (fr) 2017-02-04 2018-02-01 Disjoncteur mono-étage

Publications (2)

Publication Number Publication Date
EP3577675A1 EP3577675A1 (fr) 2019-12-11
EP3577675B1 true EP3577675B1 (fr) 2022-08-17

Family

ID=61148248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18702694.3A Active EP3577675B1 (fr) 2017-02-04 2018-02-01 Disjoncteur mono-étage

Country Status (3)

Country Link
EP (1) EP3577675B1 (fr)
CN (1) CN108400066B (fr)
WO (1) WO2018141866A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111584320A (zh) * 2019-02-19 2020-08-25 俊郎电气有限公司 一种小型漏电接地故障保护断路器
DE202019001746U1 (de) 2019-04-17 2019-05-20 Siemens Aktiengesellschaft Kompakt-Schutzschaltgerät
CN113022345A (zh) * 2021-03-12 2021-06-25 西安领充创享新能源科技有限公司 一种交流充电组件及交流充电设备
FR3121273A1 (fr) * 2021-03-26 2022-09-30 Schneider Electric Industries Sas Dispositif de protection électrique et tableau électrique comprenant un tel dispositif de protection électrique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101443873B (zh) * 2006-05-19 2013-12-11 通用电气公司 开关设备的空间分配
CN201181681Y (zh) * 2008-04-14 2009-01-14 上海益而益电器制造有限公司 脱扣装置和带有这种装置的漏电保护插座
US7994882B2 (en) * 2009-04-18 2011-08-09 General Electric Company Space allocation within a circuit breaker
US9899160B2 (en) * 2013-08-19 2018-02-20 Siemens Industry, Inc. Low-profile electronic circuit breakers, systems, and methods
US9214309B2 (en) * 2013-09-11 2015-12-15 Siemens Industry, Inc. Two-pole circuit breaker with trip bar apparatus and methods

Also Published As

Publication number Publication date
EP3577675A1 (fr) 2019-12-11
CN108400066B (zh) 2020-04-21
CN108400066A (zh) 2018-08-14
WO2018141866A1 (fr) 2018-08-09

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