CN109616385A - Miniature circuit breaker operating mechanism - Google Patents
Miniature circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN109616385A CN109616385A CN201811587050.9A CN201811587050A CN109616385A CN 109616385 A CN109616385 A CN 109616385A CN 201811587050 A CN201811587050 A CN 201811587050A CN 109616385 A CN109616385 A CN 109616385A
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- China
- Prior art keywords
- moving contact
- tripping
- shaft
- push rod
- contact rack
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000003068 static effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
-
- 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
- H01H71/521—Details concerning the lever handle
Landscapes
- Breakers (AREA)
Abstract
The present invention relates to a kind of miniature circuit breaker operating mechanisms, including handle, handle push rod, moving contact, tripping, moving contact rack, shaft, master reset spring, handle push rod reset spring；Handle push rod one end is placed in moving contact rack lock buckling groove, and offset when handle rotates with lock buckling groove inner wall realization lock；Rotary axis groove is set on moving contact rack, and shaft is placed in rotary axis groove, and gate-dividing state lower rotary shaft is located at rotary axis groove side, and "on" position lower rotary shaft is located in the middle part of rotary axis groove, and two relative positions of switching on and off state lower rotary shaft provide the excess of stroke for moving contact；Master reset spring and shaft decentraction provide the virtual pivot of torque and closing position needed for resetting for moving contact rack；Handle push rod reset spring is fixed on moving contact rack, provides reset force for handle push rod.Operating mechanism provided by the invention is rotated by moving contact rack during the opening process and is translatable while carrying out, and is improved and is cut-off speed.
Description
Technical field
The present invention relates to breaker technical fields, more specifically to a kind of miniature circuit breaker operating mechanism.
Background technique
Miniature circuit breaker is control and protection device important in low-voltage distribution system, can be overloaded in distribution system generation,
Fault current is cut-off when short trouble rapidly, protects distribution system and electrical equipment.Fault current connecting-disconnecting function is miniature open circuit
One of most important Performance Evaluating Indexes of device, the structure and dynamic characteristic of operating mechanism are the crucial effects of breaking capacity of breaker
Factor, the breaking speed of operating mechanism and mechanical life when how to improve the system failure are the designs of miniature circuit breaker operating mechanism
With the key point of optimization.
The miniature circuit breaker operating mechanism of existing application is usually that moving contact is fixed on combined floodgate by bracket using lock
Position is unlocked lock by tripping, and moving contact quickly rotates under action of reset spring around fixed rotating shaft to realize disjunction,
In general, breaking speed is faster, breaker drop-out current ability is better, but return spring force needed for operating mechanism is bigger
Or contact closure state pressure is smaller, and then will lead to circuit breaker electrical endurance and shorten and contact resistance increase after contact ablation, appearance
Easily cause the consequences such as slide fastener and mechanical life and reliability reduction.In other words, existing miniature circuit breaker operating mechanism design
Improved there are breaking speed and the contradiction of electric life, mechanical life and reliability reduction, the optimization of operating mechanism performance there is also
Technical bottleneck.
To sum up, how under the premise of guaranteeing high electric life, mechanical life, reliability and low cost, miniature open circuit is promoted
The breaking speed of device operating mechanism is this field important technological problems urgently to be solved.
Summary of the invention
Technical problems to be solved
In view of the defect and above-mentioned demand in the prior art, the purpose of the present invention is to provide a kind of miniature circuit breaker behaviour
Make mechanism, which can effectively solve circuit breaker operation mechanism breaking speed and improve and electric life, machine
Contradiction between tool service life reduction mentions under the premise of guaranteeing high electric life, mechanical life, reliability and low cost to realize
Rise the purpose of miniature circuit breaker operating mechanism breaking speed.
Technical solution
A kind of miniature circuit breaker operating mechanism, it is characterised in that including handle, handle push rod, moving contact, tripping, moving contact
Bracket, shaft, master reset spring and handle push rod reset spring；Moving contact rack is connect with moving contact, is set on moving contact rack
There are lock buckling groove and rotary axis groove；One end of handle push rod is connect with handle, and the other end is placed in lock buckling groove, when handle rotates, is driven
Handle push rod movement, and then moved with moving contact rack；Lock buckling groove setting lock region and tripping region, in switching on and off state
In the process, handle push rod, which is in, latches region, and in tripping and breaking course, handle push rod is in tripping region；Shaft according to
Secondary to pass through tripping and moving contact rack, tripping can rotate around the shaft；Shaft is placed in rotary axis groove, and moving contact rack revolves around the shaft
Turn, and then drives moving contact movement；Rotary axis groove can carry out opposite sliding with shaft, and breaker open operation state lower rotary shaft is located at shaft
The side of slot, breaker closing state lower rotary shaft are located at the medium position of rotary axis groove；Tripping be cam structure or eccentric wheel structure,
The handle push rod being placed in lock buckling groove can be boosted when rotation upwards, completes the tripping process of breaker；Master reset spring is to turn round
Spring is placed between moving contact rack and tripping, and deformation occurs for master reset spring under breaker closing state, and generation makes moving contact branch
The torque that frame is rotated to breaker open operation position；Meanwhile the master reset spring center of circle and shaft decentraction, it is under "on" position
Contact supporting provides cross-brace power；Handle push rod reset spring is placed on moving contact rack, during circuit breaker tripping, with
Deformation occurs for handle push rod contact, generates the thrust for resetting handle push rod.
The shaft channel profiles are set as slotted hole, and half circular diameter of slotted hole two sides is greater than the diameter of shaft, slotted hole
Length is 1.2 times -5 times of shaft diameter.
The tripping uses the frame structure of hollow out.
Torsional spring, tension spring, pressure spring can be used in the master reset spring, mountable outside tripping or moving contact rack or breaker
On shell or pedestal, it can be placed in above or below shaft.
The moving contact rack lower end surface and the tripping lower end surface are respectively provided with airflow-resistive face.
Beneficial effect
A kind of miniature circuit breaker operating mechanism proposed by the present invention, compared with prior art, the invention has the following advantages that
1, the master reset spring center of circle and shaft center of circle different location provide transverse direction in closing position for moving contact rack
Support force can make moving contact generate moving contact and static contact using the virtual pivot that the cross-brace power generates in closing position
Pressing force adjusted more convenient so as to adjust the pressing force of dynamic and static contact by the position for adjusting virtual pivot.
2, in separating brake or breaking course, the rotation of moving contact rack and translation process carry out simultaneously, improve moving contact
Speed is cut-off, to improve the connecting-disconnecting function of breaker.
2, lock is realized by the cooperation of lock buckling groove and push rod on a part, is cooperated with two parts of traditional design
Method is compared, and tripping force is smaller, be conducive to connecting-disconnecting function promotion, while operate it is more reliable, be not easy slide fastener.
3, during tripping rotation tripping, the power direction approximation and push rod latching force of tripping driving handle push rod are perpendicular,
Tripping force is small.
4, airflow-resistive face can stop arc-chutes hot gas to flow back, and avoid the aging and damage of operating mechanism；Raising is gone out
Arc chamber pressure promotes Arc In A Nozzle effect；The shock wave that reflected arc generates pushes electric arc quickly to move.
Detailed description of the invention
Fig. 1 is the main view of the gate-dividing state of the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention.
Fig. 2 is the rearview of the gate-dividing state of the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention.
Fig. 3 is the main view of the "on" position of the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention.
Fig. 4 be in the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention moving contact rack structure and its
Cooperate schematic diagram with master reset torsional spring.
Fig. 5 is tripping structural schematic diagram in the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention.
Fig. 6 is moving contact rack airflow-resistive in the embodiment of miniature circuit breaker operating mechanism provided in an embodiment of the present invention
Face and tripping airflow-resistive face cooperate schematic diagram.
Wherein, 1- shell, 2- handle push rod reset spring, 3- moving contact rack, 4- handle push rod, 5- handle, 6- tripping,
7- shaft, 8- master reset spring, 9- moving contact, 10- static contact, 301- moving contact rack lock buckling groove, 302- moving contact rack turn
Axial trough, 303- tripping retention bead, the airflow-resistive face of 304- moving contact rack, 601- tripping tripping end face, 602- tripping are touched
Hit face, the airflow-resistive face of 603- tripping, 604- thermal tripping pull rod connecting hole, 605- tripping limit hollow hole, 3011- moving contact
The tripping region of bracket lock buckling groove, the lock region of 3012- moving contact rack lock buckling groove.
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
A kind of miniature circuit breaker operating mechanism, including handle 5, handle push rod 4, moving contact 9, tripping 6, moving contact rack 3,
Shaft 7, master reset spring 8, handle push rod reset spring 2；
Wherein, moving contact rack 3 is connect with moving contact 9, and moving contact rack 3 is equipped with lock buckling groove 301 and rotary axis groove 302；
One end of handle push rod 4 is connect with handle 5, and the other end is placed in lock buckling groove 301, handle 5 rotate when and lock buckling groove
301 inner walls, which offset, realizes lock；When handle 5 rotates, handle push rod 4 is driven to move, and then is moved with moving contact rack 3；
The setting of lock buckling groove 301 lock region 3012 and tripping region 3011, in switching on and off state and in the process, handle is pushed away
Bar 4, which is in, latches region 3012, and in tripping and breaking course, handle push rod 4 is in tripping region 3011；
Tripping 6 and moving contact rack 3 are connected by shaft 7, and tripping 6 being capable of 7 rotation around the shaft；
Shaft 7 is placed in rotary axis groove 302,7 rotation around the shaft of moving contact rack 3, and then moving contact 9 is driven to move；
302 profile of rotary axis groove is set as slotted hole, and half circular diameter of slotted hole two sides is greater than the diameter of shaft 7, and slotted hole is long
Degree is 1.2 times -5 times of 7 diameter of shaft, and rotary axis groove 302 can carry out sliding relatively with shaft 7, breaker open operation state lower rotary shaft 7
Positioned at the side of rotary axis groove 302, breaker closing state lower rotary shaft is located at the intermediate region of rotary axis groove 302；
Further, tripping 6 is cam structure or eccentric wheel structure, is pushed up when tripping 6 rotates by end face 601 of threading off
The handle push rod 4 being placed in lock buckling groove 301 is acted, the tripping process of breaker is completed；
Further, master reset spring 8 is torsional spring, is placed between moving contact rack 3 and tripping 6, breaker closing state
Deformation occurs for lower master reset spring 8, generates the torque for rotating moving contact rack 3 to breaker open operation position；Meanwhile master reset
8 center of circle of spring and 7 decentraction of shaft provide cross-brace power under "on" position for moving contact rack 3；
Further, handle push rod reset spring 2 is placed on moving contact rack 3, during circuit breaker tripping, with hand
Deformation occurs for the contact of handle push rod 4, generates the thrust for resetting handle push rod 4.
Further, in above-mentioned miniature circuit breaker operating mechanism, tripping 6 is equipped with raised baffle close to the side of buckle releaser
602, buckle releaser push rod collides raised baffle 602, rotates tripping, completes tripping process, while during tripping rotation tripping
Raised baffle 602 offsets with moving contact rack 3.
Further, in above-mentioned miniature circuit breaker operating mechanism, tripping 6 is using the frame structure of hollow out, and wherein tripping limits
Tripping retention bead 304 on position hollow hole 605 and moving contact rack 3 cooperates, and limits to tripping 6.
Further, in above-mentioned miniature circuit breaker operating mechanism, moving contact rack air-flow is arranged in 3 lower end surface of moving contact rack
Tripping airflow-resistive face is arranged in blocking surface, 6 lower end surface of tripping.
Further, in above-mentioned miniature circuit breaker operating mechanism, master reset spring 8 uses torsional spring, is mounted on tripping 6 and master
Between contact supporting 3, the lateral deflection of moving contact rack 3 can avoid.
Further, the tripping region 3011 of the lock buckling groove may be configured as enclosed construction, may be alternatively provided as open knot
Structure.
Further, the master reset spring can be used torsional spring, tension spring, pressure spring, mountable in the tripping or the branch
On frame or case for circuit breaker or pedestal, it can be placed in above or below shaft.
Miniature circuit breaker operating mechanism provided in an embodiment of the present invention, when gate-dividing state, handle push rod 4 is placed in moving contact branch
In the lock buckling groove 301 of frame 3, the side that lower rotary shaft 7 is located at moving contact rack rotary axis groove 302 is acted in master reset spring 8；It is closing a floodgate
In the process, external force driving handle 5 rotates, and handle push rod 4 is placed in the tripping region 3011 in lock buckling groove 301, and with lock buckling groove 301
Inner wall offsets, while handle push rod 4 also offsets with the tripping of tripping 6 tripping end face 601, push moving contact rack 3 and tripping 6 around
Shaft 7 rotates, and after moving contact 9 is contacted with static contact 10, handle push rod 4 continues to move, and provides and connects for moving contact 9 and static contact 10
Touch pressure, during 7 rotation around the shaft of moving contact rack 3, with shaft 7 opposite slide occurs for rotary axis groove 302；Breaking course
In, tripping 6 rotates under the effect of buckle releaser push rod, and tripping tripping end face 601, which can raise, is placed in the lock of lock buckling groove 301 region
Handle push rod 4 in 3012, so complete tripping, master reset spring 8 effect under, the rotary axis groove 302 of moving contact rack 3 with turn
Axis 7 occurs relative to sliding and rotation, 10 quick separating of moving contact 9 and static contact.In above-mentioned breaking course, moving contact rack 3
Rotation and translation process carry out simultaneously, improve moving contact 9 and cut-off speed, can guarantee 8 counter-force of master reset spring and move
Under the premise of contact 9,10 contact pressure of static contact are constant, 9 breaking speed of moving contact is improved.
Miniature circuit breaker operation provided in an embodiment of the present invention, master reset spring 8 use torsional spring structure, master reset spring 8
The center of circle and 7 center of circle different location of shaft provide cross-brace power for moving contact rack 3, can make moving contact 9 in closing position
Virtual pivot is generated using cross-brace power in closing position, provides contact pressure for moving contact 9 and static contact 10.
Miniature circuit breaker operating mechanism provided in an embodiment of the present invention, during rotating tripping, tripping 6 is pushed for tripping 6
The power direction approximation of handle push rod 4 and 4 latching force of push rod are perpendicular, and tripping force is small；Meanwhile the tripping collision being arranged in tripping 6
Face 602 can offset with moving contact rack 3, using the thrust of buckle releaser mandril, further increase the breaking speed of moving contact 9.
Miniature circuit breaker operating mechanism provided in an embodiment of the present invention, the airflow-resistive face 304 of moving contact rack and tripping
Airflow-resistive face 603 have the effect that 1. stop arc-chutes hot gas reflux, avoid the aging and damage of operating mechanism,
2. improving arc suppression chamber pressure, promote Arc In A Nozzle effect, the shock wave that 3. reflected arc generates pushes electric arc quickly to move.
Miniature circuit breaker operating mechanism provided in an embodiment of the present invention, the hollow out frame structure that tripping 6 uses, can be effective
Reduce the quality of tripping 6, promotes the acceleration that tripping 6 rotates under the effect of buckle releaser mandril, improve trip speed.
In a preferred embodiment, miniature circuit breaker operating mechanism provided in an embodiment of the present invention, lock buckling groove
301 use closed structure, limit the motion range of handle push rod 4, avoid causing since handle push rod 4 is detached from lock buckling groove 301
Stuck phenomenon, while guide handle push rod 4 resets again after tripping, returns to the lock region 3012 of lock buckling groove 301.
In another preferred embodiment, miniature circuit breaker operating mechanism provided in an embodiment of the present invention, tripping 6
Eccentric wheel structure is selected, and tripping tripping end face 601 uses globoidal structure, forms approximate point contact with handle push rod 4 or line connects
Touching form effectively reduces frictional force, improves trip speed.
Claims (5)
1. a kind of miniature circuit breaker operating mechanism, it is characterised in that including handle (5), handle push rod (4), moving contact (9), tripping
(6), moving contact rack (3), shaft (7), master reset spring (8) and handle push rod reset spring (2)；Moving contact rack (3) with
Moving contact (9) connection, moving contact rack (3) are equipped with lock buckling groove (301) and rotary axis groove (302)；One end of handle push rod (4) with
Handle (5) connection, the other end are placed in lock buckling groove (301), when handle (5) rotates, drive handle push rod (4) movement, and then band
Moving contact rack (3) movement；Lock buckling groove (301) setting lock region (3012) and tripping region (3011), in switching on and off state
In the process, handle push rod (4), which is in, latches region (3012), and in tripping and breaking course, handle push rod (4) is in tripping
Region (3011)；Shaft (7) sequentially passes through tripping (6) and moving contact rack (3), and tripping (6) (7) can rotate around the shaft；Turn
Axis (7) is placed in rotary axis groove (302), and moving contact rack (3) rotates around the shaft (7), and then drives moving contact (9) movement；Shaft
Slot (302) can carry out opposite sliding with shaft (7), and breaker open operation state lower rotary shaft (7) is located at the side of rotary axis groove (302),
Breaker closing state lower rotary shaft (7) is located at the medium position of rotary axis groove (302)；Tripping (6) is cam structure or eccentric wheel knot
Structure, when rotation, can boost the handle push rod (4) being placed in lock buckling groove (301) upwards, complete the tripping process of breaker；It is main multiple
Position spring (8) is torsional spring, is placed between moving contact rack (3) and tripping (6), master reset spring (8) under breaker closing state
Deformation occurs, generates the torque for rotating moving contact rack (3) to breaker open operation position；Meanwhile master reset spring (8) center of circle
With shaft (7) decentraction, cross-brace power is provided for moving contact rack (3) under "on" position；Handle push rod reset spring (2)
It is placed on moving contact rack (3), during circuit breaker tripping, contacts that deformation occurs with handle push rod (4), generation pushes away handle
The thrust that bar (4) resets.
2. a kind of miniature circuit breaker operating mechanism according to claim 1, it is characterised in that rotary axis groove (302) wheel
Exterior feature is set as slotted hole, and half circular diameter of slotted hole two sides is greater than the diameter of shaft (7), and oval hole length is shaft (7) diameter
1.2 times -5 times.
3. a kind of miniature circuit breaker operating mechanism according to claim 1, it is characterised in that the tripping (6) is used and engraved
Empty frame structure.
4. a kind of miniature circuit breaker operating mechanism according to claim 1, it is characterised in that the master reset spring (8) can
It is mountable in tripping (6) or moving contact rack (3) or case for circuit breaker or pedestal using torsional spring, tension spring, pressure spring, it can be placed in
Above or below shaft (7).
5. a kind of miniature circuit breaker operating mechanism according to claim 1, it is characterised in that under the moving contact rack (3)
End face and the tripping (6) lower end surface are respectively provided with airflow-resistive face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587050.9A CN109616385B (en) | 2018-12-25 | 2018-12-25 | Miniature circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587050.9A CN109616385B (en) | 2018-12-25 | 2018-12-25 | Miniature circuit breaker operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109616385A true CN109616385A (en) | 2019-04-12 |
| CN109616385B CN109616385B (en) | 2024-07-16 |
Family
ID=66011092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811587050.9A Active CN109616385B (en) | 2018-12-25 | 2018-12-25 | Miniature circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109616385B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463081A (en) * | 2020-03-31 | 2020-07-28 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker locking and tripping system and method |
| CN111540649A (en) * | 2020-06-01 | 2020-08-14 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker, locking and tripping system and locking and tripping method |
| CN111668075A (en) * | 2020-07-06 | 2020-09-15 | 江苏大全高压开关有限公司 | Circuit breaker mechanism with locking device for preventing moving contact from separating brake and bouncing |
| CN112582225A (en) * | 2019-09-29 | 2021-03-30 | 上海良信电器股份有限公司 | Circuit breaker opening and closing mechanism |
| CN113012995A (en) * | 2019-12-20 | 2021-06-22 | 厦门国研科技有限公司 | Circuit breaker contact mechanism with quick switching-on function |
| CN113745068A (en) * | 2021-08-05 | 2021-12-03 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
| WO2022135047A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Linkage device for lock catch and moving contact of circuit breaker |
| WO2022135048A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Linkage device comprising lock, movable contact seat and movable contact of circuit breaker |
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| EP0506503A1 (en) * | 1991-03-29 | 1992-09-30 | Hager Electro S.A. | Locking mechanism for circuit breaker |
| CN102034652A (en) * | 2010-12-22 | 2011-04-27 | 上海良信电器股份有限公司 | Operating mechanism for molded case circuit breaker |
| CN202585283U (en) * | 2012-03-22 | 2012-12-05 | 上海良信电器股份有限公司 | Resetting mechanism for double-breakpoint breaker |
| CN209266338U (en) * | 2018-12-25 | 2019-08-16 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker operating mechanism |
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Patent Citations (4)
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| EP0506503A1 (en) * | 1991-03-29 | 1992-09-30 | Hager Electro S.A. | Locking mechanism for circuit breaker |
| CN102034652A (en) * | 2010-12-22 | 2011-04-27 | 上海良信电器股份有限公司 | Operating mechanism for molded case circuit breaker |
| CN202585283U (en) * | 2012-03-22 | 2012-12-05 | 上海良信电器股份有限公司 | Resetting mechanism for double-breakpoint breaker |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582225A (en) * | 2019-09-29 | 2021-03-30 | 上海良信电器股份有限公司 | Circuit breaker opening and closing mechanism |
| CN113012995A (en) * | 2019-12-20 | 2021-06-22 | 厦门国研科技有限公司 | Circuit breaker contact mechanism with quick switching-on function |
| CN111463081A (en) * | 2020-03-31 | 2020-07-28 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker locking and tripping system and method |
| CN111540649A (en) * | 2020-06-01 | 2020-08-14 | 浙江零壹智能电器研究院有限公司 | Miniature circuit breaker, locking and tripping system and locking and tripping method |
| CN111668075A (en) * | 2020-07-06 | 2020-09-15 | 江苏大全高压开关有限公司 | Circuit breaker mechanism with locking device for preventing moving contact from separating brake and bouncing |
| WO2022135047A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Linkage device for lock catch and moving contact of circuit breaker |
| WO2022135048A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Linkage device comprising lock, movable contact seat and movable contact of circuit breaker |
| CN113745068A (en) * | 2021-08-05 | 2021-12-03 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
| CN113745068B (en) * | 2021-08-05 | 2023-11-24 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109616385B (en) | 2024-07-16 |
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