CN110767508B - N-pole circuit breaker without arc extinguishing device - Google Patents

N-pole circuit breaker without arc extinguishing device Download PDF

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Publication number
CN110767508B
CN110767508B CN201911250721.7A CN201911250721A CN110767508B CN 110767508 B CN110767508 B CN 110767508B CN 201911250721 A CN201911250721 A CN 201911250721A CN 110767508 B CN110767508 B CN 110767508B
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China
Prior art keywords
circuit breaker
pole
breaker
live wire
adjacent live
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CN201911250721.7A
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CN110767508A (en
Inventor
王克诚
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Tianjin Jiameite Electric Co ltd
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Tianjin Jiameite Electric Co ltd
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Publication of CN110767508A publication Critical patent/CN110767508A/en
Priority to PCT/CN2020/079794 priority Critical patent/WO2020211585A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08Terminals; Connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms

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  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The invention discloses an N-pole circuit breaker without an arc extinguishing device, which comprises an N-pole circuit breaker and adjacent live wire circuit breakers, wherein an N-pole circuit breaker tripping link rod is arranged in the N-pole circuit breaker, and the N-pole circuit breaker tripping link rod and the adjacent live wire circuit breaker tripping link rod form a cross and mutual insertion structure; according to the invention, the design of triggering of a cross and mutual insertion structure formed by the adjacent live wire breaker tripping link rod of the adjacent live wire breaker and the N pole breaker tripping link rod of the N pole breaker is adopted, so that the adjacent live wire breaker is firstly tripped, and after the contact of the adjacent live wire breaker is separated from contact, the contact mechanism of the adjacent live wire breaker is moved to the end point to trigger the N pole breaker tripping link rod of the N pole breaker to act, and the N pole breaker contact is prevented from generating electric arc, so that the purpose of breaking the N pole breaker after the N pole breaker is achieved, and the replacement of parts and the redesign of the N pole contact mechanism are not needed.

Description

N-pole circuit breaker without arc extinguishing device
Technical Field
The invention relates to the field of electrical switches, in particular to a circuit breaker with an N pole and no arc extinguishing device.
Background
The switch contact can all produce electric arc when cutting off electric current or carrying switch-on and disconnection, it is dangerous and harmful, every grade of the multipolar circuit breaker that has the N utmost point on the market now all possesses contact arc control device, because it is uncertain which utmost point circuit breaker contact closes earlier when closing a floodgate, when the dropout falls off the floodgate, also uncertain which utmost point circuit breaker breaks off at last, if can ensure in the aspect of circuit breaker mechanical structure design that the N utmost point circuit breaker possesses reliable first break-after-break function, on antidetonation (prevent mistake from falling off the floodgate) performance, the dropout sensitivity of live wire circuit breaker is superior to the N utmost point, just can get rid of the circuit breaker arc control device of the N utmost point, thereby reduce manufacturing cost, also can install other protective equipment or components and parts with the space that saves, with the protection of more functions of same volume realization even littleer volume.
The existing N-pole circuit breaker without an arc extinguishing device usually adopts a mode of enlarging the overtravel of a contact in the design of first connection and second disconnection, and the mode has the defects of unobvious time difference between the current connection and the current disconnection and the need of changing the pressure of the contact. Therefore, the invention provides a circuit breaker with an N pole and no arc extinguishing device, which aims to solve the defects in the prior art.
Disclosure of Invention
Aiming at the problems, the invention adopts the mutual triggering tripping design formed by the cross and mutual insertion structure formed by the tripping link rod of the adjacent live wire circuit breaker and the tripping link rod of the N-pole circuit breaker, so that the adjacent live wire circuit breaker is firstly tripped, and after the contact of the adjacent live wire circuit breaker is separated from the contact, the moving contact of the adjacent live wire circuit breaker is disconnected and then the tripping link rod of the N-pole circuit breaker is triggered to act when the terminal point is reached, thereby ensuring that the contact of the N-pole circuit breaker does not generate electric arc, and further achieving the purpose of breaking the N-pole circuit breaker.
The invention provides an N-pole circuit breaker without an arc extinguishing device, which comprises an N-pole circuit breaker and an adjacent live wire circuit breaker, wherein an N-pole circuit breaker output terminal and an N-pole circuit breaker input terminal are respectively arranged on two sides of the N-pole circuit breaker, an N-pole circuit breaker static contact, an N-pole circuit breaker moving contact and an N-pole circuit breaker tripping link rod are arranged in the N-pole circuit breaker, a driving arm is arranged above the N-pole circuit breaker tripping link rod and connected with a U-shaped connecting rod, the other side of the U-shaped connecting rod is connected with a driving wheel of a contact mechanism of the N-pole circuit breaker, the driving arm is arranged above an N-pole moving contact movement mechanism, an N-pole circuit breaker tripping link rod is arranged below the N-pole moving contact movement mechanism, an N-pole circuit breaker tripping lever spring is arranged on one side of the N-pole circuit breaker tripping link rod, an adjacent live wire circuit breaker tripping link rod, a live wire circuit breaker tripping link rod and an adjacent live wire circuit breaker are arranged in the adjacent live wire circuit breaker, Adjacent live wire circuit breaker handle drive wheel, handle shaft coupling driving lever, adjacent live wire circuit breaker dropout lever spring and adjacent live wire circuit breaker moving contact motion, N utmost point circuit breaker dropout link rod and adjacent live wire circuit breaker dropout link rod form alternately and mutually insert the structure, N utmost point circuit breaker dropout link rod one end is inserted and is established inside adjacent live wire circuit breaker moving contact motion, adjacent live wire circuit breaker dropout link rod is inserted and is established N utmost point circuit breaker dropout striker rod right side kickup's tip and in close contact with it, N utmost point circuit breaker dropout striker rod left side end connection has the electromagnetic trip.
The further improvement lies in that: the inside fan-shaped groove that is equipped with of N utmost point circuit breaker contact mechanism drive wheel, be equipped with the shifting block on the handle shaft coupling driving lever, the shifting block is located inside the fan-shaped groove, just the shifting block is in free rotation angle slightly of fan-shaped inslot is greater than close a floodgate and the rotation angle that breaks off a floodgate of adjacent live wire circuit breaker handle drive wheel.
The further improvement lies in that: handle shaft coupling driving lever one end is non-circular structure, just the non-circular structure one end of handle shaft coupling driving lever with adjacent live wire circuit breaker handle drive wheel is connected, the handle shaft coupling driving lever other end is circular shaft structure, just the circular shaft structure one end of handle shaft coupling driving lever with N utmost point circuit breaker contact mechanism drive wheel is connected.
The further improvement lies in that: and the driving wheel of the contact mechanism of the N-pole circuit breaker is connected with the driving wheel of the handle of the adjacent live wire circuit breaker in series through a handle coupling driving rod.
The further improvement lies in that: and the N-pole breaker tripping link rod is inserted into the tail end of the tripping and tripping movement track of the adjacent live-wire breaker moving contact movement mechanism.
The further improvement lies in that: and the torsion of an N-pole breaker tripping lever spring in the N-pole breaker is greater than the torsion of an adjacent live wire breaker tripping lever spring in the adjacent live wire breaker.
The further improvement lies in that: the diameter of the steel wire of the N-pole circuit breaker tripping lever spring is larger than that of the steel wire of the adjacent live wire circuit breaker tripping lever spring, and the strength of the steel wire of the N-pole circuit breaker tripping lever spring is the same as that of the steel wire of the adjacent live wire circuit breaker tripping lever spring.
The further improvement lies in that: adjacent live wire circuit breaker energy storage dog is provided with to adjacent live wire circuit breaker inside, N utmost point circuit breaker is inside not to set up energy memory.
The invention has the beneficial effects that: 1. according to the invention, the N-pole breaker tripping link rod and the adjacent live line breaker tripping link rod form a cross and inter-insertion structure to form a design of mutual triggering tripping, after the moving contact of the adjacent live line breaker is separated from contact, the moving contact movement mechanism of the adjacent live line breaker moves to the end point to be reached, and then the N-pole breaker tripping link rod of the N-pole breaker is triggered to act, so that an obvious time difference is generated between the disconnection of the contact of the N-pole breaker and the disconnection of the contact of the adjacent live line breaker, and the purpose that the N-pole breaker does not generate electric arc is achieved;
2. through the arrangement that the torsion of a tripping lever spring of the N-pole circuit breaker is larger than that of a tripping lever spring of an adjacent live wire circuit breaker, the tripping sensitivity of the adjacent live wire circuit breaker is far higher than that of the N-pole circuit breaker, so that the capability of resisting shock (causing error tripping prior to the adjacent live wire circuit breaker) of the N-pole circuit breaker is far higher than that of the adjacent live wire circuit breaker;
3. the technical scheme is that the structural design of the sector groove in the driving wheel of the contact mechanism of the N-pole circuit breaker overcomes the defects that the handles of the traditional multi-pole circuit breaker are connected in parallel, and the N pole has to be synchronously disconnected with the live wire circuit breaker, so that a shifting block on a shifting rod of a handle coupling shaft is ensured to have a certain free rotation angle space in the sector groove, and the purpose of back disconnection of the N-pole circuit breaker is achieved;
4. set up adjacent live wire circuit breaker energy storage dog through adjacent live wire circuit breaker, N utmost point circuit breaker does not set up energy memory's combined design, can guarantee when the combined floodgate action is done to needs circuit breaker switch-on power supply, and adjacent live wire circuit breaker moving contact motion receives the fender of adjacent live wire circuit breaker energy storage dog, and N utmost point moving contact motion does not receive and blocks, reaches the purpose of guaranteeing that N utmost point circuit breaker is prior to adjacent live wire circuit breaker switch-on power supply.
Drawings
Fig. 1 is a schematic front view of an N-pole circuit breaker of the present invention with a first-make and a second-break.
Fig. 2 is a schematic diagram of the working principle of the N-pole make-before-break single-phase circuit breaker of the present invention.
Fig. 3 is an explosion diagram of the working principle of the N-pole make-before-break single-phase circuit breaker of the present invention.
Fig. 4 is a schematic diagram of the cross-tripping principle of the N-pole make-before-break three-phase circuit breaker of the present invention.
Fig. 5 is a schematic structural diagram of a driving wheel of the contact mechanism of the N-pole circuit breaker.
Fig. 6 is a schematic diagram of the first-pass working principle of the N-pole circuit breaker of the present invention.
Wherein: 1. an N-pole breaker; 2. an adjacent live line breaker; 3. an N-pole breaker output terminal; 4. an N-pole breaker input terminal; 5. a static contact of the N-pole circuit breaker; 6. a moving contact of the N-pole breaker; 7. an N-pole breaker tripping link rod; 8. a drive arm; 9. a U-shaped connecting rod; 10. a contact mechanism driving wheel of the N-pole breaker; 11. the N pole breaker tripping striker; 12. a moving contact motion mechanism of the N pole; 13. a N-pole breaker tripping lever spring; 14. adjacent live line circuit breaker tripping links; 15. an adjacent live line breaker handle drive wheel; 16. a handle is coupled with a deflector rod; 17. a tripping lever spring of an adjacent live line breaker; 18. moving contact moving mechanisms of adjacent live line circuit breakers; 19. an adjacent live line breaker energy storage stop; 20. a sector groove; 21. shifting blocks; 22. an electromagnetic release.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to fig. 1, 2, 3, 4, 5, and 6, the embodiment provides a circuit breaker without an arc extinguishing device in an N pole, which includes an N pole circuit breaker 1 and an adjacent live line circuit breaker 2, wherein an N pole circuit breaker output terminal 3 and an N pole circuit breaker input terminal 4 are respectively disposed on two sides of the N pole circuit breaker 1, an N pole circuit breaker static contact 5, an N pole circuit breaker moving contact 6, and an N pole circuit breaker tripping link 7 are disposed inside the N pole circuit breaker 1, a driving arm 8 is disposed above the N pole circuit breaker tripping link 7, the driving arm 8 is connected with a U-shaped link 9, the other side of the U-shaped link 9 is connected with a driving wheel 10 of a N pole circuit breaker contact mechanism, the driving arm 8 is disposed above an N pole moving contact movement mechanism 12, an N pole circuit breaker striking rod 11 is disposed below the N pole moving contact movement mechanism 12, an N pole circuit breaker tripping lever spring 13 is, inside adjacent live wire circuit breaker 2 is equipped with adjacent live wire circuit breaker tripping link 14, adjacent live wire circuit breaker handle drive wheel 15, handle shaft coupling driving lever 16, adjacent live wire circuit breaker tripping lever spring 17 and adjacent live wire circuit breaker moving contact motion 18, N utmost point circuit breaker tripping link 7 and adjacent live wire circuit breaker tripping link 14 form alternately and mutually insert the structure, N utmost point circuit breaker tripping link 7 one end is inserted and is established inside adjacent live wire circuit breaker moving contact motion 18, adjacent live wire circuit breaker tripping link 14 is inserted and is established the crooked tip in the right side of N utmost point circuit breaker tripping striker 11 and in close contact with it, the 11 left side end connection of N utmost point circuit breaker tripping striker has electromagnetic trip 22.
The inside sector groove 20 that is equipped with of N utmost point circuit breaker contact mechanism drive wheel 10, be equipped with shifting block 21 on the handle shaft coupling driving lever 16, shifting block 21 is located inside sector groove 20, just shifting block 21 is in free rotation angle slightly in the sector groove 20 is greater than close and fall the floodgate rotation angle of adjacent live wire circuit breaker handle drive wheel 15. The circuit breaker is characterized in that one end of the handle coupling deflector rod 16 is of a non-circular structure, one end of the non-circular structure of the handle coupling deflector rod 16 is connected with the adjacent live wire breaker handle driving wheel 15, the other end of the handle coupling deflector rod 16 is of a circular shaft structure, and one end of the circular shaft structure of the handle coupling deflector rod 16 is connected with the N-pole breaker contact mechanism driving wheel 10. The N-pole breaker contact mechanism driving wheel 10 and the adjacent live wire breaker handle driving wheel 15 are connected in series through a handle coupling shift lever 16. And the N-pole breaker tripping link 7 is inserted into the tail end of a tripping and tripping movement track of the adjacent live-wire breaker moving contact movement mechanism 18. The torsion of an N-pole breaker tripping lever spring 13 in the N-pole breaker 1 is greater than the torsion of an adjacent live wire breaker tripping lever spring 17 in the adjacent live wire breaker 2. The diameter of the steel wire of the N-pole circuit breaker tripping lever spring 13 is larger than that of the steel wire of the adjacent live wire circuit breaker tripping lever spring 17, and the strength of the steel wire of the N-pole circuit breaker tripping lever spring 13 is the same as that of the steel wire of the adjacent live wire circuit breaker tripping lever spring 17. Adjacent live wire circuit breaker 2 is inside to be provided with adjacent live wire circuit breaker energy storage dog 19, N utmost point circuit breaker 1 is inside not to set up energy memory.
After an N-pole breaker tripping link rod 7 of an N-pole breaker 1 extends into an adjacent live wire breaker 2, when contacts of the adjacent live wire breaker 2 are separated from contact until an adjacent live wire breaker moving contact motion mechanism 18 of the adjacent live wire breaker 2 moves to be close to a farthest point, the N-pole breaker tripping link rod 7 is touched to trigger the contact tripping separation of the N-pole breaker 1, at the moment, the adjacent live wire breaker 2 is in a power-off state, a moving contact and a static contact of the N-pole breaker 1 cannot be triggered to generate electric arcs, a fan-shaped groove 20 is arranged in a driving wheel 10 of the N-pole breaker contact mechanism, other adjacent live wire breaker handle driving wheels 15 are connected in series through a handle coupling deflector rod 16 with one end in a non-circular structure, the adjacent live wire breakers 2 at all levels are ensured to be linked together, the other end of the handle coupling deflector rod 16 is in a circular shaft structure, and a deflector block 21 is arranged on the circular shaft surface, the end of a round shaft is arranged in an N-pole breaker contact mechanism driving wheel 10 of an N-pole breaker 1, a shifting block 21 is arranged in a fan-shaped groove 20 in the N-pole breaker contact mechanism driving wheel 10, the N-pole breaker 1 is synchronous with other adjacent live wire breakers 2 when being switched on, the switching-on action of the N-pole breaker contact mechanism driving wheel 10 is shifted by the shifting block 21 on a handle coupling shifting rod 16 in a clockwise rotation direction when being switched on, a U-shaped connecting rod 9 and an N-pole moving contact movement mechanism 12 are driven to synchronously rotate clockwise to a switching-on position with the adjacent live wire breakers 2, the fan-shaped groove 20 takes the fan-shaped angle except the space occupied by the shifting block 21 as the shifting block 21 and can freely rotate in the fan-shaped groove 20, the switching-on and switching-off rotation angle range of the adjacent live wire breaker handle driving wheel 15 is smaller than the angle of the shifting block 21 which freely rotates in the fan-shaped groove 20, and therefore the handle coupling shifting rod 16 is ensured when the adjacent live wire breaker handle driving wheel 15 is switched off and rotates anticlockwise The shifting block 21 freely rotates in the fan-shaped groove 20 without interference, so that the synchronous brake drop of the N-pole circuit breaker 1 and the live wire circuit breaker can not be caused, and a remarkable N-pole back-off effect is obtained.
According to the invention, the N-pole breaker tripping link 7 and the adjacent live line breaker tripping link 14 form a cross and inter-inserting structure to form a design of mutual triggering tripping, after the moving contact of the adjacent live line breaker 2 is separated from contact, the moving contact movement mechanism 18 of the adjacent live line breaker moves to the end point to be reached, and then the N-pole breaker tripping link 7 of the N-pole breaker 1 is triggered to act, so that an obvious time difference is generated between the disconnection of the contact of the N-pole breaker 1 and the disconnection of the contact of the adjacent live line breaker 2, and the purpose that the N-pole breaker 1 does not generate electric arc is achieved;
through the arrangement that the torsion of the N-pole breaker tripping lever spring 13 is larger than that of the adjacent live wire breaker tripping lever spring 17, the tripping sensitivity of the adjacent live wire breaker 2 is far higher than that of the N-pole breaker 1, so that the capability of resisting shock (causing error tripping prior to the adjacent live wire breaker 2) of the N-pole breaker 1 is far higher than that of the adjacent live wire breaker 2;
the structural design of the sector groove 20 in the driving wheel 10 of the contact mechanism of the N-pole circuit breaker overcomes the defects that the handles of the traditional multi-pole circuit breaker are connected in parallel, and the N pole has to be synchronously disconnected with the live wire circuit breaker, so that the shifting block 21 on the shifting rod 16 of the handle coupling is ensured to have a certain free rotation angle space in the sector groove 20, and the purpose of back disconnection of the N-pole circuit breaker 1 is achieved;
add adjacent live wire circuit breaker energy storage dog 19 through adjacent live wire circuit breaker 2, the N utmost point circuit breaker does not set up energy memory's combined design, can guarantee when the action of closing a floodgate is done to needs circuit breaker switch on power, adjacent live wire circuit breaker moving contact motion 18 receives the fender of adjacent live wire circuit breaker energy storage dog 19, and N utmost point moving contact motion 12 does not receive and blocks, reaches the purpose of guaranteeing that N utmost point circuit breaker 1 is prior to adjacent live wire circuit breaker 2 switch on power.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that all the details of the above embodiments are independent of each other and that any one of them reduces the risk of arcing when the contacts of an N-pole circuit breaker are separated, and that the present invention shall have variations and modifications which fall within the scope of the claimed invention even if not all of the above-described measures are taken to be equally infringement of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a circuit breaker of arc extinguishing device is not taken to N utmost point which characterized in that: the circuit breaker comprises an N-pole circuit breaker (1) and an adjacent live wire circuit breaker (2), wherein an N-pole circuit breaker output terminal (3) and an N-pole circuit breaker input terminal (4) are respectively arranged on two sides of the N-pole circuit breaker (1), an N-pole circuit breaker static contact (5), an N-pole circuit breaker moving contact (6) and an N-pole circuit breaker tripping link rod (7) are arranged inside the N-pole circuit breaker (1), a driving arm (8) is arranged above the N-pole circuit breaker tripping link rod (7), a U-shaped connecting rod (9) is connected onto the driving arm (8), the other side of the U-shaped connecting rod (9) is connected with a driving wheel (10) of a contact mechanism of the N-pole circuit breaker, the driving arm (8) is arranged above a moving contact mechanism (12) of the N-pole, an N-pole circuit breaker tripping collision rod (11) is arranged below the moving contact mechanism (12), and an N-pole circuit breaker tripping lever spring (13) is arranged on one side of the tripping link rod (7) of the N-pole circuit breaker, an adjacent live wire breaker tripping link rod (14), an adjacent live wire breaker handle driving wheel (15), a handle coupling shift rod (16), an adjacent live wire breaker tripping lever spring (17) and an adjacent live wire breaker moving contact movement mechanism (18) are arranged in the adjacent live wire breaker (2), the N-pole breaker tripping link rod (7) and the adjacent live wire breaker tripping link rod (14) form a cross and mutual insertion structure, one end of the N-pole breaker tripping link rod (7) is inserted in the adjacent live wire breaker moving contact movement mechanism (18), the adjacent live wire breaker tripping link rod (14) is inserted in the end part, bent upwards, of the right side of the N-pole breaker tripping striker (11) and is in close contact with the end part, and the end part of the left side of the N-pole breaker tripping striker (11) is connected with an electromagnetic release (22);
a sector groove (20) is formed in the driving wheel (10) of the N-pole breaker contact mechanism, a shifting block (21) is arranged on the handle coupling shifting rod (16), the shifting block (21) is located in the sector groove (20), and the free rotation angle of the shifting block (21) in the sector groove (20) is slightly larger than the switching-on and switching-off rotation angle of the adjacent live wire breaker handle driving wheel (15);
handle shaft coupling driving lever (16) one end is non-circular structure, just the non-circular structure one end of handle shaft coupling driving lever (16) with adjacent live wire circuit breaker handle drive wheel (15) are connected, handle shaft coupling driving lever (16) other end is circular shaft structure, just the circular shaft structure one end of handle shaft coupling driving lever (16) with N utmost point circuit breaker contact mechanism drive wheel (10) are connected.
2. The N-pole arc extinguishing device-free circuit breaker according to claim 1, wherein: the N-pole breaker contact mechanism driving wheel (10) and the adjacent live wire breaker handle driving wheel (15) are connected in series through a handle coupling deflector rod (16).
3. The N-pole arc extinguishing device-free circuit breaker according to claim 1, wherein: and the N-pole breaker tripping link rod (7) is inserted into the tail end of a tripping and tripping movement track of the adjacent live-wire breaker moving contact movement mechanism (18).
4. The N-pole arc extinguishing device-free circuit breaker according to claim 1, wherein: the torsion of an N-pole breaker tripping lever spring (13) in the N-pole breaker (1) is greater than the torsion of an adjacent live wire breaker tripping lever spring (17) in the adjacent live wire breaker (2).
5. The N-pole arc extinguishing device-free circuit breaker according to claim 1, wherein: the steel wire diameter of N utmost point circuit breaker tripping lever spring (13) is greater than the steel wire diameter of adjacent live wire circuit breaker tripping lever spring (17), the steel wire intensity of N utmost point circuit breaker tripping lever spring (13) and adjacent live wire circuit breaker tripping lever spring (17) is the same.
6. The N-pole arc extinguishing device-free circuit breaker according to claim 1, wherein: adjacent live wire circuit breaker energy storage dog (19) are provided with to adjacent live wire circuit breaker (2) inside, N utmost point circuit breaker (1) is inside not to set up energy memory.
CN201911250721.7A 2019-04-16 2019-12-09 N-pole circuit breaker without arc extinguishing device Active CN110767508B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/079794 WO2020211585A1 (en) 2019-04-16 2020-03-17 Circuit breaker having n poles without arc extinguishing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2019103050039 2019-04-16
CN201910305003.9A CN109920706A (en) 2019-04-16 2019-04-16 A kind of breaker of the pole N without arc-control device

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Publication Number Publication Date
CN110767508A CN110767508A (en) 2020-02-07
CN110767508B true CN110767508B (en) 2021-09-17

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CN201911250721.7A Active CN110767508B (en) 2019-04-16 2019-12-09 N-pole circuit breaker without arc extinguishing device

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Publication number Priority date Publication date Assignee Title
CN109920706A (en) * 2019-04-16 2019-06-21 天津加美特电气设备有限公司 A kind of breaker of the pole N without arc-control device
CN112863953B (en) * 2021-01-05 2023-07-28 华通机电股份有限公司 Asynchronous double-break contact mechanism and residual current operated circuit breaker
CN113972104B (en) * 2021-09-30 2023-07-28 环宇高科有限公司 Small-size modularized automatic opening and closing Internet of things circuit breaker

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Publication number Priority date Publication date Assignee Title
EP2849198B1 (en) * 2013-09-17 2016-12-21 LSIS Co., Ltd. Circuit breaker with a magnet fixing means
KR200484495Y1 (en) * 2014-03-31 2017-09-12 엘에스산전 주식회사 Circuit breaker
CN203931978U (en) * 2014-06-30 2014-11-05 温州罗格朗电器有限公司 A kind of integral type residual current circuit breaker
CN108155067B (en) * 2018-02-02 2024-01-26 温州奥来电器有限公司 Electric leakage circuit breaker with disconnectable live wire and zero line
CN208077900U (en) * 2018-02-26 2018-11-09 浙江丰源电器配件有限公司 A kind of breaker
CN109920706A (en) * 2019-04-16 2019-06-21 天津加美特电气设备有限公司 A kind of breaker of the pole N without arc-control device
CN110085489A (en) * 2019-05-30 2019-08-02 天津加美特电气设备有限公司 A kind of breaker of the pole N without arc-control device

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WO2020211585A1 (en) 2020-10-22
CN109920706A (en) 2019-06-21

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