WO2022135044A1 - Dispositif de verrouillage de disjoncteur - Google Patents

Dispositif de verrouillage de disjoncteur Download PDF

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Publication number
WO2022135044A1
WO2022135044A1 PCT/CN2021/133628 CN2021133628W WO2022135044A1 WO 2022135044 A1 WO2022135044 A1 WO 2022135044A1 CN 2021133628 W CN2021133628 W CN 2021133628W WO 2022135044 A1 WO2022135044 A1 WO 2022135044A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
connecting rod
chute
pressing
curved
Prior art date
Application number
PCT/CN2021/133628
Other languages
English (en)
Chinese (zh)
Inventor
周维峰
林凯
胡广召
Original Assignee
浙江奥来电器有限公司
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 浙江奥来电器有限公司 filed Critical 浙江奥来电器有限公司
Publication of WO2022135044A1 publication Critical patent/WO2022135044A1/fr

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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
    • H01H71/1054—Means for avoiding unauthorised release
    • 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
    • H01H71/121—Protection of release mechanisms

Definitions

  • the utility model relates to a circuit breaker, in particular to a locking device inside the circuit breaker.
  • the utility model overcomes the problems existing in the prior art, and provides a novel locking mechanism of a circuit breaker with reasonable structure and stable operation.
  • a lock device of a circuit breaker comprising a movable contact seat, a lock, a lock push rod mechanism, a connecting rod and a handle, wherein the first end of the connecting rod
  • the movable contact is arranged on the handle, the second end is arranged on the movable contact seat, the movable contact seat is provided with a convex column, and the lock catch is sleeved on the convex column through the through hole provided on it, and it is characterized in that: the lock
  • the push rod mechanism includes a spring and a push rod. The elastic force of the spring acts on the push rod, and the top end of the push rod abuts on the lock catch.
  • the upper part of the movable contact seat is provided with a chute, and the chute includes a curved part and a The straight part, the curved part of the chute is bent upward at one end close to the handle, the curved part and the straight part are connected to each other, the upper end of the lock is provided with a counter arm, and the counter arm is provided with a counter surface, after the circuit breaker is disconnected
  • the top end of the push rod is in contact with the side of the lock catch, so that the contact surface of the lock catch is close to the curved part of the chute so that the second end of the connecting rod is locked on the curved part of the chute, and the second end of the connecting rod is locked behind the curved part of the chute
  • the handle can be pushed to close the circuit breaker; after the circuit breaker is closed, the release mechanism of the circuit breaker acts on the latch, and the latch rotates, the contact surface loses the locking of the second end of the connecting rod, and the second end of the connecting rod can slide in The straight part of the chute realizes the opening
  • a new method is adopted to lock or unlock the second end of the connecting rod, so as to realize the action of closing or disconnecting the circuit breaker.
  • the above method is easy to install, stable in operation, and will not cause malfunction; bending The part is set to be bent upward, so that the handle is opposite to the traditional circuit breaker in the closing position and the tripping position, to meet the needs of different customers, and the traditional circuit breaker cannot be reversed.
  • the utility model is further provided as follows: the upper side of the bending part is provided with a pressing limit surface, the second end of the connecting rod abuts against the pressing limit surface after the circuit breaker is closed, and the handle is the first to the connecting rod.
  • the included angle between the thrust direction generated by the two ends and the thrust direction generated by the pressing limit facing the second end of the connecting rod is less than 180 degrees.
  • the utility model is further provided as follows: the contact surface on the contact arm is L-shaped, the lower part of the contact surface is provided with an inclined surface for the second end of the connecting rod to slide into the curved part, and the contact periphery of the sliding groove is provided with a groove.
  • the contact arm can better press the second end of the connecting rod against the curved portion, and the inclined plane can facilitate the connecting rod to slide into the curved portion, which can well ensure the next closing success.
  • the utility model is further provided as follows: the movable contact seat is provided with a convex block above the chute, and the convex block is provided with an arc surface at the curved part, and the arc surface and the pressing limit surface are integrally connected to form a connecting rod The pressing limit surface of the second end.
  • the utility model is further provided as follows: the pressing and limiting surface is divided into a limiting surface and a pressing surface, wherein the limiting surface is located at the top end of the curved portion, the pressing surface is located at the upper bending position of the curved portion, and the circuit breaker is closed. During the locking process, the second end of the connecting rod abuts against the pressing surface.
  • Fig. 1 is the schematic diagram reflecting the internal structure of the embodiment of the present utility model
  • FIG. 2 is a perspective view of a lock according to an embodiment of the present invention.
  • FIG. 3 is a perspective view of a moving contact seat according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a locking push rod mechanism according to an embodiment of the present invention.
  • Fig. 5 is the force analysis diagram of the embodiment of the utility model.
  • a lock device of a circuit breaker includes a movable contact base 1, a lock 2, a lock push rod mechanism 3, a connecting rod 4 and a handle 5, wherein the No. 1 of the connecting rod 4 One end is movably arranged on the handle 5, the second end is arranged on the movable contact base 1, the movable contact base 1 is provided with a convex column 11, and the lock catch 2 is sleeved on the convex column 11 through the through hole 21 set on it.
  • the lock push rod mechanism 3 includes a spring 31 and a push rod 32, the elastic force of the spring 31 acts on the push rod 32, and the top end of the push rod 32 abuts on the lock catch 2, here we want to explain that the spring is another One end can be in contact with the circuit breaker housing or against the bracket fixedly connected with the housing. In this embodiment, it is against the bracket connected with the housing.
  • a chute 12 is provided above the movable contact base 1 .
  • the chute 12 includes a curved portion 121 and a straight portion 122, the curved portion 121 of the chute 12 is bent upward at one end close to the handle 5, the curved portion 121 and the straight portion 122 are connected to each other, and the upper end of the lock 2 is provided There is a resisting arm 22, and a resisting surface 221 is provided on the resisting arm 22.
  • the top end of the push rod 32 resists the side of the lock 2, so that the contact surface 221 of the lock 2 is close to the curved portion 121 of the chute so as to connect
  • the second end of the rod 4 is locked in the curved part 121 of the chute, and the second end of the connecting rod 4 is locked in the curved part 121 of the chute, and the handle 5 can be pushed to close the circuit breaker; the release mechanism of the circuit breaker after the circuit breaker is closed
  • the contact surface 221 loses the lock on the second end of the connecting rod 4.
  • the second end of the connecting rod 4 can slide into the straight part 122 of the chute 12 to realize the opening of the circuit breaker.
  • the tripping mechanism of the circuit breaker is provided in the existing circuit breaker, also known as a tripper, and we will not describe it in detail. Lock or unlock the end of the circuit breaker to realize the action of closing or opening the circuit breaker.
  • the above method is easy to install, stable in operation, and will not cause misoperation; the bending portion 121 is set to be bent upward, so that the handle 4 is in the closing position and the opening position.
  • the position is opposite to that of traditional circuit breakers, which solves the problem that traditional circuit breakers cannot be set in the opposite direction, and meets the needs of different installations of customers.
  • the upper side of the curved portion 121 is provided with a pressing limit surface 1211.
  • the second end of the connecting rod 4 abuts against the pressing limit surface 1211.
  • the handle The included angle A between the thrust direction F1 generated by the second end of the connecting rod 4 and the thrust direction F2 generated by the pressing limiting surface 1211 on the second end of the connecting rod 4 is less than 180 degrees.
  • the contact surface 221 on the contact arm 22 is L-shaped, and the lower part of the contact surface 221 is provided with an inclined surface 222 that facilitates the second end of the connecting rod 4 to slide into the curved portion 121 .
  • a groove 123 is provided on the periphery.
  • the movable contact base 1 is provided with a convex block 13 located above the sliding groove 12 , and the convex block 13 is provided with an arc surface at the curved portion 121 , and the arc surface is connected with the pressing limit surface 1211 .
  • the pressing limit surface 1211 of the second end of the connecting rod 4 is integrally formed, which can ensure that the area of the pressing limiting surface 1211 is as large as possible, so that the pressing effect on the second end of the connecting rod 4 is better.
  • the two ends are stably fixed on the curved portion 121 .
  • the pressing limiting surface 1211 is divided into a limiting surface 12111 and a pressing surface 12112, wherein the limiting surface 12111 is located at the top of the curved portion 121, and the pressing surface 12112 is located at the upper bending position of the curved portion 121, and the circuit breaker is closed. During the process, the second end of the connecting rod 4 abuts against the pressing surface 12112 .
  • the above solution further ensures the movement and locking of the product to the second end of the connecting rod 4, and greatly improves the stability of the product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Breakers (AREA)

Abstract

L'invention concerne un dispositif de verrouillage d'un disjoncteur, comprenant un siège de contact mobile (1), un verrouillage (2), un mécanisme de tige de poussée de verrouillage (3), une tige de liaison (4) et une poignée (5). Une rainure de coulissement (12) est disposée au-dessus du siège de contact mobile (1), et la rainure de coulissement (12) comprend une partie courbée (121) et une partie droite (122), l'extrémité de la partie courbée (121) de la rainure de coulissement (12) proche de la poignée (5) étant courbée vers le haut, et la partie courbée (121) et la partie droite (122) étant agencées de manière conductrice. L'extrémité supérieure du verrouillage (2) comporte un bras de butée (22), et le bras de butée (22) comporte une surface de butée (221). Une fois que le disjoncteur est déconnecté, l'extrémité supérieure d'une tige de poussée (32) vient en butée contre une surface latérale du dispositif de verrouillage (2), de sorte que la surface de butée (221) du verrouillage (2) est pressée contre la partie courbée (121) de la rainure de coulissement de façon à verrouiller une seconde extrémité de la tige de liaison (4) au niveau de la partie courbée (121) de la rainure de coulissement ; et une fois que la seconde extrémité de la tige de liaison (4) est verrouillée au niveau de la partie courbée (121) de la rainure de coulissement, la poignée (5) peut être poussée pour fermer le disjoncteur. Par verrouillage ou déverrouillage de la seconde extrémité de la tige de liaison au moyen de l'utilisation de la solution susmentionnée, la fermeture ou la déconnexion du disjoncteur est mise en œuvre. L'installation est pratique, les actions sont stables, et aucune erreur ne se produit.
PCT/CN2021/133628 2020-12-25 2021-11-26 Dispositif de verrouillage de disjoncteur WO2022135044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011566038.7A CN112490089A (zh) 2020-12-25 2020-12-25 一种断路器的锁扣装置
CN202011566038.7 2020-12-25

Publications (1)

Publication Number Publication Date
WO2022135044A1 true WO2022135044A1 (fr) 2022-06-30

Family

ID=74915619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/133628 WO2022135044A1 (fr) 2020-12-25 2021-11-26 Dispositif de verrouillage de disjoncteur

Country Status (2)

Country Link
CN (1) CN112490089A (fr)
WO (1) WO2022135044A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112490089A (zh) * 2020-12-25 2021-03-12 浙江奥来电器有限公司 一种断路器的锁扣装置
CN112530757A (zh) * 2020-12-25 2021-03-19 浙江奥来电器有限公司 一种断路器动触头操作机构
CN112582232A (zh) * 2020-12-25 2021-03-30 浙江奥来电器有限公司 一种断路器的锁扣与动触头的联动装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012120327A1 (fr) * 2011-03-07 2012-09-13 Larsen & Toubro Limited Mécanisme de verrou amélioré destiné à être utilisé dans des disjoncteurs
CN105742128A (zh) * 2016-04-14 2016-07-06 乐清市智顺电气有限公司 电气保护装置的操作机构
CN105845521A (zh) * 2016-05-31 2016-08-10 乐清市也为电气有限公司 一种小型断路器的动触头操作机构
CN206388662U (zh) * 2016-11-24 2017-08-08 杭州泰姆电气有限公司 一种断路器的操作机构
EP3404691A1 (fr) * 2016-01-11 2018-11-21 Zhejiang Chint Electrics Co., Ltd. Mécanisme de manoeuvre pour disjoncteur miniature
CN111785586A (zh) * 2020-08-08 2020-10-16 浙江威利坚科技股份有限公司 一种断路器的操作机构
CN112490089A (zh) * 2020-12-25 2021-03-12 浙江奥来电器有限公司 一种断路器的锁扣装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012120327A1 (fr) * 2011-03-07 2012-09-13 Larsen & Toubro Limited Mécanisme de verrou amélioré destiné à être utilisé dans des disjoncteurs
EP3404691A1 (fr) * 2016-01-11 2018-11-21 Zhejiang Chint Electrics Co., Ltd. Mécanisme de manoeuvre pour disjoncteur miniature
CN105742128A (zh) * 2016-04-14 2016-07-06 乐清市智顺电气有限公司 电气保护装置的操作机构
CN105845521A (zh) * 2016-05-31 2016-08-10 乐清市也为电气有限公司 一种小型断路器的动触头操作机构
CN206388662U (zh) * 2016-11-24 2017-08-08 杭州泰姆电气有限公司 一种断路器的操作机构
CN111785586A (zh) * 2020-08-08 2020-10-16 浙江威利坚科技股份有限公司 一种断路器的操作机构
CN112490089A (zh) * 2020-12-25 2021-03-12 浙江奥来电器有限公司 一种断路器的锁扣装置

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