WO2022205757A1 - Mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2p2 doté d'une protection contre les surintensités - Google Patents

Mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2p2 doté d'une protection contre les surintensités Download PDF

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Publication number
WO2022205757A1
WO2022205757A1 PCT/CN2021/114977 CN2021114977W WO2022205757A1 WO 2022205757 A1 WO2022205757 A1 WO 2022205757A1 CN 2021114977 W CN2021114977 W CN 2021114977W WO 2022205757 A1 WO2022205757 A1 WO 2022205757A1
Authority
WO
WIPO (PCT)
Prior art keywords
lock
circuit breaker
hinged
linked
linkage shaft
Prior art date
Application number
PCT/CN2021/114977
Other languages
English (en)
Chinese (zh)
Inventor
刘锋
Original Assignee
英特曼电工（常州）有限公司
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 英特曼电工（常州）有限公司 filed Critical 英特曼电工（常州）有限公司
Priority to EP21844625.0A priority Critical patent/EP4089709A4/fr
Publication of WO2022205757A1 publication Critical patent/WO2022205757A1/fr

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    • 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
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • 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
    • 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
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force

Definitions

  • the invention relates to the technical field of circuit breakers, in particular to an operating mechanism of a 2P2 modulus electromagnetic leakage protection circuit breaker.
  • Residual current circuit breaker also known as residual current circuit breaker and residual current protector
  • the leakage protection circuit breaker generally includes a casing, and the circuit breaker device and the leakage protection device are distributed in the casing.
  • the circuit breaker device is used to control the on-off of the moving contact and the static contact during short circuit, overload or infrequent starting of the line.
  • the leakage protection device is used to control the on-off of moving contacts and static contacts when leakage occurs.
  • the circuit breaker device generally includes an operating mechanism, a thermal tripping mechanism, an electromagnetic tripping mechanism and an arc extinguishing system.
  • the operating mechanism includes a handle, a contact lever, and a lock.
  • the linkage structure can control the on-off of the moving contact and the static contact, and the lock is used to link the leakage protection device with the operating mechanism, so as to control the on-off of the moving contact and the static contact when there is leakage.
  • each phase circuit breaker is respectively connected with a set of handle linkage mechanisms for control, resulting in numerous handle linkage mechanisms.
  • the technical problem to be solved by the present invention is to provide an operating mechanism for a 2P2 modulus electromagnetic leakage protection circuit breaker, which can realize the control of a multi-phase circuit breaker by a single handle, simplify the structure, and reduce the overall circuit breaker.
  • the complexity of the structure is reduced, the production of parts is reduced, the cost is reduced, and the processing and assembly are convenient.
  • an operating mechanism of a 2P2 modulus electromagnetic leakage protection circuit breaker comprising a handle and a connecting rod whose one end is linked with the handle, and the connecting rod is linked relative to the other end of the linked handle.
  • a contact lever is characterized in that a first hinged linkage shaft with one end hinged on the circuit breaker casing is arranged in the middle of the contact lever, and one side of the contact lever is linked with an end of the first hinged linkage shaft.
  • the first lock, the end of the first lock intermittently interferes with the contact lever, and the contact lever is hinged to the other end of the first hinge linkage shaft relative to the other side of the first lock.
  • the second lock of the contact lever is provided with a second hinged linkage shaft relative to the other end of the linkage link, and the side of the contact lever toward the first lock is linked with the end of the second hinged linkage shaft.
  • a first movable contact which can be intermittently linked with the first lock, the second hinged linkage shaft is located at the hinged joint of the first movable contact and is sleeved with a first return spring that can be connected with the first movable contact, so
  • the side of the contact lever facing the second lock is linked with a second movable contact that is hinged on the end of the second hinged linkage shaft and can be intermittently linked with the second lock, and the second hinged linkage shaft is located at the second
  • a second return spring that can be connected with the second movable contact is sleeved at the hinge joint of the movable contact.
  • the first lock and the second lock are respectively linked to both sides of the contact lever through the two ends of the first hinged linkage shaft, and the first movable contact and the second The moving contacts are linked to both sides of the contact lever through the two ends of the second hinged linkage shaft, so that one handle can drive two sets of moving contacts, and a single handle can control the multi-phase circuit breaker, which simplifies the structure of the operating mechanism and reduces the The overall structural complexity of the circuit breaker is reduced, the production of parts and components is reduced, and the cost is reduced, and the processing and assembly are convenient.
  • the operating mechanism of the above-mentioned 2P2 analog-digital electromagnetic leakage protection circuit breaker can be further configured as follows: a relative linkage structure is provided between the first lock and the second lock.
  • the operating mechanism of the above-mentioned 2P2 analog-digital electromagnetic leakage protection circuit breaker can be further configured as follows: the relative linkage structure includes a plug-in post disposed in the middle of the second lock and facing one side of the first lock, the first lock A lock is provided with a linkage shaft hole that can be fitted with the insertion column.
  • the contact lever can push the first lock to rotate around the first hinged linkage shaft under the driving of the connecting rod, and the second lock passes through The insertion post rotates around the first hinge linkage shaft following the first lock catch.
  • the first lock is urged to drive the second lock to work with the handle, so that a single handle can control a multi-phase circuit breaker, and the two-phase circuit breaker has high working synchronization, which improves the circuit breaker. safety performance.
  • the operating mechanism of the above-mentioned 2P2 modulus electromagnetic leakage protection circuit breaker can be further configured as follows: a side of the middle of the second lock that is away from the first lock is provided with a first push column that can be linked with the leakage protection device.
  • the first push column is provided, the purpose is to link the leakage protection device with the circuit breaker device, so that the leakage protection device can control the multi-phase circuit breaker through the first push column when leakage occurs, so as to ensure the leakage protection device normal work.
  • the operating mechanism of the above-mentioned 2P2 modulus electromagnetic leakage protection circuit breaker may be further configured as follows: a flexible connection mechanism is provided between the connecting rod and the contact lever.
  • the operating mechanism of the above-mentioned 2P2 modulus electromagnetic leakage protection circuit breaker can be further configured as follows: the flexible connection mechanism includes a flexible linkage block whose one end is hinged with the end of the connecting rod, and the flexible linkage block is relative to the linkage of the linkage connecting rod. The other end is hinged with the contact lever.
  • the movement route of the connecting rod is made to be a curve. Smooth movement to prevent jamming; among them, both ends of the flexible linkage block can perform adaptive motion under the power of both the connecting rod and the contact lever, thereby preventing jamming.
  • the operating mechanism of the above-mentioned 2P2 analog-digital electromagnetic leakage protection circuit breaker can be further configured as follows: the first movable contact and the second movable contact are respectively close to one end of the second hinge linkage shaft and are fixedly connected with the circuit breaker. The second push column of the intermittent linkage of the thermal tripping mechanism.
  • the thermal tripping mechanism in the circuit breaker can realize linkage with the operating mechanism.
  • the thermal tripping mechanism can successfully drive the two moving contacts and the operating mechanism.
  • the static contacts are separated to ensure the normal operation of the thermal tripping mechanism and improve the safety performance of the circuit breaker.
  • FIG. 1 is a (partial) schematic structural diagram of an embodiment of the present invention.
  • Fig. 2 is the left side view schematic diagram of Fig. 1;
  • Fig. 3 is the right side schematic diagram of Fig. 1;
  • FIG. 4 is a schematic diagram of a first lock according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a second lock according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a contact lever according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an assembled state according to an embodiment of the present invention.
  • an operating mechanism of a 2P2 modular electromagnetic leakage protection circuit breaker includes a handle 1 and a connecting rod 2 whose one end is linked with the handle 1, and the connecting rod 2 is linked with the other end of the linked handle 1.
  • the end of the first lock 5 is interlocked with the contact lever 3 intermittently, and the contact lever 3 is linked with the other side of the first lock 5 that is hinged to the first lock 5.
  • a second lock 6 at the other end of the hinged linkage shaft 4 is provided with a relative linkage structure between the first lock 5 and the second lock 6 , and the contact lever 3 is opposite to the other end of the linkage link 2
  • a second hinged linkage shaft 7 is provided, and the side of the contact lever 3 facing the first lock 5 is linked with a first hinged hinged on the end of the second hinged linkage shaft 7 and can be intermittently linked with the first lock 5 .
  • the movable contact 8, the second hinged linkage shaft 7 is located at the hinged position of the first movable contact 8 and is sleeved with a first return spring 10 that can be connected with the first movable contact 8, and the contact lever 3 faces the second lock
  • the side of the buckle 6 is linked with a second movable contact 9 that is hinged to the end of the second hinged linkage shaft 7 and can be intermittently linked with the second locking buckle 6.
  • the second hinged linkage shaft 7 is located at the second movable contact.
  • a second return spring 11 that can be connected with the second movable contact 9 is sleeved at the hinge joint.
  • the relative linkage structure includes an insertion column 61 disposed in the middle of the second lock 6 and facing the side of the first lock 5 .
  • the first lock 5 is provided with a linkage shaft hole that can be fitted with the insertion column 61 . 51.
  • the contact lever 3 can push the first lock 5 to rotate around the first hinge linkage shaft 4 under the driving of the connecting rod 2, and the second lock 6 follows the first lock 5 through the insertion column 61. It rotates around the first hinged linkage shaft 4 .
  • the side of the middle of the second lock 6 away from the first lock 5 is provided with a first push column 62 that can be linked with the leakage protection device.
  • a flexible connection mechanism is provided between the connecting rod 2 and the contact lever 3 .
  • the flexible connection mechanism includes a flexible linkage block 12 whose one end is hinged with the end of the link 2 , and the flexible linkage block 12 is hinged with the contact lever 3 relative to the other end of the linkage link 2 .
  • a second push column 13 that can be intermittently linked with the thermal trip mechanism in the circuit breaker is fixedly connected to one end of the first movable contact and the second movable contact close to the second hinge linkage shaft 7 respectively.
  • the whole process is simple to operate, and one handle can drive two sets of moving contacts, so that a single handle can control the multi-phase circuit breaker, which simplifies the structure of the operating mechanism, reduces the overall structural complexity of the circuit breaker, reduces the generation of parts, and reduces the cost, and easy to process and assemble.

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  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

La présente invention concerne un mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2P2 doté d'une protection contre les surintensités, comprenant une poignée, une biellette et un levier de contact et étant caractérisé en ce que : un premier arbre de liaison à charnière est disposé au milieu du levier de contact ; un premier verrou et un second verrou sont reliés au levier de contact ; une structure de liaison relative est disposée entre le premier verrou et le second verrou ; l'autre extrémité du levier de contact relativement à la biellette comprend un second arbre de liaison à charnière ; un premier contact mobile et un second contact mobile sont reliés au levier de contact ; et un second manchon d'arbre de liaison à charnière comprend un premier ressort de rappel et un second ressort de rappel. L'effet bénéfique de la présente invention est que : un mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2P2 doté d'une protection contre les surintensités est prévu, de telle sorte qu'une poignée unique peut commander un disjoncteur multiphase, la structure est simplifiée, la complexité globale de la structure du disjoncteur est réduite, le nombre de pièces est réduit, le coût est réduit, et le traitement et l'assemblage sont pratiques.
PCT/CN2021/114977 2021-03-31 2021-08-27 Mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2p2 doté d'une protection contre les surintensités WO2022205757A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21844625.0A EP4089709A4 (fr) 2021-03-31 2021-08-27 Mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2p2 doté d'une protection contre les surintensités

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110350635.4A CN112967912A (zh) 2021-03-31 2021-03-31 一种2p2模数电磁式漏电保护断路器的操作机构
CN202110350635.4 2021-03-31

Publications (1)

Publication Number Publication Date
WO2022205757A1 true WO2022205757A1 (fr) 2022-10-06

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PCT/CN2021/114977 WO2022205757A1 (fr) 2021-03-31 2021-08-27 Mécanisme de fonctionnement d'un disjoncteur à courant résiduel électromagnétique à module 2p2 doté d'une protection contre les surintensités

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EP (1) EP4089709A4 (fr)
CN (1) CN112967912A (fr)
WO (1) WO2022205757A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112967912A (zh) * 2021-03-31 2021-06-15 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的操作机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6614334B1 (en) * 2002-06-27 2003-09-02 Eaton Corporation Circuit breaker including two circuit breaker mechanisms and an operating handle
CN202434448U (zh) * 2012-01-06 2012-09-12 浙江鼎威科技有限公司 小体积的1p+n漏电断路器
CN111293009A (zh) * 2020-03-27 2020-06-16 北京明日电器设备有限责任公司 一种单相双极小型漏电断路器的动作机构
CN112951665A (zh) * 2021-03-31 2021-06-11 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器
CN112967912A (zh) * 2021-03-31 2021-06-15 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的操作机构
CN214542094U (zh) * 2021-03-31 2021-10-29 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的操作机构

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204179039U (zh) * 2014-11-06 2015-02-25 张森林 断路器的四连杆机构
CN208157335U (zh) * 2018-05-03 2018-11-27 首瑞（天津）电气设备有限公司 一种断路器的操作机构和断路器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6614334B1 (en) * 2002-06-27 2003-09-02 Eaton Corporation Circuit breaker including two circuit breaker mechanisms and an operating handle
CN202434448U (zh) * 2012-01-06 2012-09-12 浙江鼎威科技有限公司 小体积的1p+n漏电断路器
CN111293009A (zh) * 2020-03-27 2020-06-16 北京明日电器设备有限责任公司 一种单相双极小型漏电断路器的动作机构
CN112951665A (zh) * 2021-03-31 2021-06-11 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器
CN112967912A (zh) * 2021-03-31 2021-06-15 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的操作机构
CN214542094U (zh) * 2021-03-31 2021-10-29 英特曼电工（常州）有限公司 一种2p2模数电磁式漏电保护断路器的操作机构

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Publication number Publication date
CN112967912A (zh) 2021-06-15
EP4089709A1 (fr) 2022-11-16
EP4089709A4 (fr) 2023-10-18

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