CN109767957B - Electric opening and closing mechanism of miniature circuit breaker - Google Patents
Electric opening and closing mechanism of miniature circuit breaker Download PDFInfo
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- CN109767957B CN109767957B CN201910178862.6A CN201910178862A CN109767957B CN 109767957 B CN109767957 B CN 109767957B CN 201910178862 A CN201910178862 A CN 201910178862A CN 109767957 B CN109767957 B CN 109767957B
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Abstract
The invention relates to an electric opening and closing mechanism of a small circuit breaker, which comprises a shell, an intelligent control circuit board, an electric opening and closing assembly and a tripping assembly, wherein the electric opening and closing assembly comprises a handle gear, a stirring gear, a motor and a gear set, the tripping assembly comprises a rotating shaft, a zero line contact support, a zero line lock catch, a zero line moving contact, a tension spring and a zero line fixed contact, a stirring shaft is arranged at the other end of the zero line contact support, one end of the stirring shaft penetrates through the shell and is connected to a circuit breaker jump buckle, a zero line contact frame is in linkage fit with the circuit breaker jump buckle, a linkage shaft is arranged on the zero line lock buckle, one end of the linkage shaft penetrates through the shell and is connected to the circuit breaker lock catch, a stirring block matched with the zero line lock catch is arranged on the stirring gear, and the stirring block moves along with the stirring gear and can stir the zero line lock catch. The invention has the advantages of simple structure, low cost, low failure rate and safe and reliable performance.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an electric opening and closing mechanism of a miniature circuit breaker.
Background
At present, the miniature circuit breaker is a switching device widely applied to various occasions of production and life, a user side is generally provided with the miniature circuit breaker, along with the development of informatization, a smart grid is developed and perfected increasingly, and the way of charging the user with the electric charge is not like the past, the user is not required to take a meter by a meter reader to take a meter; the current method for charging the electric charge to the user generally adopts a remote electric charge charging mode, the user can pay the electric charge through a fixed-point business hall or pay the electric charge in an online business hall, and certain electric quantity can be purchased in advance through a prepayment mode. When the user is under charge, the miniature circuit breaker at the user side is controlled by the electric switching-on/off mechanism to automatically switch off, and after the user pays electricity fee, the electric switching-on/off mechanism controls the miniature circuit breaker at the user side to switch on to supply power for the user.
The existing electric opening and closing mechanism is complex in structural design, large in size and occupies most of space in a breaker shell, and the electric opening and closing mechanism has the defects of high failure rate, unreliable performance and low safety performance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an electric opening and closing mechanism of a small-sized circuit breaker, which has the advantages of simple structure, low cost, low failure rate and safe and reliable performance.
In order to achieve the purpose, the invention adopts an electric opening and closing mechanism of a small-sized circuit breaker, which comprises a shell, an intelligent control circuit board arranged in the shell, an electric opening and closing component and a tripping component which are arranged in the shell, wherein the electric opening and closing component comprises a handle gear which is arranged in linkage with a handle of the circuit breaker, a stirring gear which is meshed with the handle gear, a motor and a gear set, the motor drives the stirring gear through the gear set, and the stirring gear drives the handle gear to realize the closing or opening of the handle of the circuit breaker; the tripping assembly comprises a rotating shaft, a zero line contact support, a zero line lock catch, a zero line moving contact, a tension spring, a zero line fixed contact, a poking shaft, a poking block and a zero line lock catch, wherein the rotating shaft is arranged in a shell, the zero line contact support is arranged on the rotating shaft in a rotating mode, the zero line lock catch is arranged on the rotating shaft in a linkage mode, the zero line contact is arranged between the rotating shaft and the zero line contact support in a linkage mode, the zero line tension spring is arranged between the zero line moving contact and the shell, the zero line fixed contact is arranged in the shell and matched with the zero line moving contact, the poking shaft is arranged at the other end of the zero line contact support, one end of the poking shaft penetrates through the shell and is connected with the circuit breaker jump buckle in a linkage mode, the connecting shaft is arranged on the zero line lock catch, one end of the connecting shaft penetrates through the shell and is connected with the circuit breaker lock catch, the zero line lock catch is in a linkage mode with the circuit breaker lock catch, the poking block is arranged on the poking gear and is matched with the zero line lock catch, and the poking block moves along with the poking gear and can move with the zero line lock catch.
The beneficial effects of the structure are as follows: when the electric switching-on/off mechanism works, when the electric switching-on/off mechanism receives a switching-on signal, the motor rotates positively, the motor drives the toggle gear through the gear set, the toggle gear drives the handle gear to rotate, and the handle gear drives the breaker handle, so that switching-on of the breaker is realized; at the moment, the toggle gear continuously rotates positively, the toggle gear is separated from the handle gear, and at the moment, the handle is not touched by toggling the handle gear to execute manual brake-separating action; after the breaker is switched on, when the electric switching-on and switching-off mechanism receives a switching-off signal, a stirring block on a stirring gear stirs a zero line lock catch, the zero line lock catch drives the breaker lock catch to act, the breaker is firstly switched off, and a zero line moving contact and a zero line fixed contact are disconnected, so that the electric switching-on and switching-off of the electric switching-on and switching-off mechanism is realized; when the electric switching-on/off mechanism receives the arrearage signal, the poking block is abutted against the zero line lock catch, at the moment, the zero line moving contact and the zero line fixed contact cannot be switched on again, and the circuit breaker cannot be switched on again, so that the arrearage outage function of the electric switching-on/off mechanism is realized. Therefore, the electric opening and closing mechanism has the advantages of simple structure, low cost, low failure rate and safe and reliable performance.
Particularly, the tail part of the poking block is provided with a hook body, the zero line lock buckle is provided with a clamping hook matched with the hook body, and the hook body moves along with the poking block and can poke the clamping hook to realize the tripping action of the zero line lock buckle. The zero line lock buckle is provided with the clamping hook matched with the hook body on the poking block, so that the poking gear can be guaranteed to reliably drive the zero line lock buckle to act, and the zero line lock buckle can be guaranteed to reliably execute the tripping action.
Particularly, the handle gear on be provided with arc handle tooth, and arc handle tooth is the same with the rotation range of circuit breaker handle, stir the gear on be provided with arc handle tooth matched with semicircle arc tooth, semicircle arc tooth and arc handle tooth meshing transmission control circuit breaker handle combined floodgate. Be provided with on the handle gear with stir the semicircle arc tooth matched with arc handle tooth on the gear to can guarantee that the handle gear can reliably drive the circuit breaker handle and carry out automatic closing action, and after this electronic divide-shut brake mechanism automatic closing, this semicircle arc tooth can not influence the handle gear and carry out manual brake action that divides, and this electronic divide-shut brake mechanism is when electronic closing, electronic brake, all rotates towards a direction, and the motor need not just rotate in a reverse direction, is favorable to prolonging the life of motor.
Particularly, a worm is arranged on a rotating shaft of the motor, the gear set comprises a first gear and a second gear meshed with the first gear, the first gear is meshed with the worm, and the second gear is meshed with the toggle gear. The motor and the gear set are driven by the worm, so that the size of the electric opening and closing mechanism is reduced, and the reliability of the electric opening and closing operation is improved.
Drawings
Fig. 1 is an internal structural diagram of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is a perspective view of a toggle gear according to an embodiment of the present invention.
FIG. 4 is a diagram showing a split state according to an embodiment of the present invention.
Fig. 5 is a structural diagram of reclosing state according to an embodiment of the present invention.
Fig. 6 is a diagram illustrating a structure of an instant state of a trip of a brake release according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating an arrearage status of an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 7, the embodiment of the invention is an electric opening and closing mechanism of a small-sized circuit breaker, which comprises a shell 10, an intelligent control circuit board arranged in the shell 10, an electric opening and closing assembly 20 and a tripping assembly 30 arranged in the shell 10, wherein the electric opening and closing assembly 20 comprises a handle gear 21 which is arranged in linkage with a circuit breaker handle 11, a toggle gear 22 meshed with the handle gear 21, a motor 23 and a gear set 24, the motor 23 drives the toggle gear 22 through the gear set 24, and the toggle gear 22 drives the handle gear 21 to realize the closing or opening of the circuit breaker handle 11; the rotating shaft of the motor 23 is provided with a worm 231, the gear set 24 comprises a first gear 241 and a second gear 242 meshed with the first gear 241, the first gear 241 is meshed with the worm 231, and the second gear 242 is meshed with the toggle gear 22. The motor and the gear set are driven by the worm, so that the size of the electric opening and closing mechanism is reduced, and the reliability of the electric opening and closing operation is improved.
The trip assembly 30 comprises a rotating shaft 31 arranged in the shell 10 at one side of the corresponding toggle gear 22, a zero line contact support 32 arranged on the rotating shaft 31 in a rotating manner, a zero line lock catch 33 arranged on the rotating shaft 31 in a rotating manner and in linkage fit with the zero line contact support 32, a zero line moving contact 34 arranged at one end of the zero line contact support 32, a tension spring 35 arranged between the zero line moving contact 34 and the shell 10, and a zero line static contact 36 arranged in the shell 10 and matched with the zero line moving contact 34, wherein a toggle shaft 37 is arranged at the other end of the zero line contact support 34, one end of the toggle shaft 37 penetrates through the shell 10 and is connected to the circuit breaker jump buckle 12, a linkage shaft 38 is arranged on the zero line lock catch 33, one end of the linkage shaft 38 penetrates through the shell 10 and is connected to the circuit breaker lock catch 13, a zero line lock catch 33 is in linkage fit with the circuit breaker lock catch 33, and the toggle gear 22 is provided with a toggle block 33 matched with the zero line lock catch 33, and the toggle gear 221 can move along with the toggle gear 33.
The tail of the poking block 221 is provided with a hook 222, the zero line lock catch 33 is provided with a hook 331 matched with the hook 222, and the hook 222 moves along with the poking block 221 and can poke the hook 331 to realize the tripping action of the zero line lock catch 33. The zero line lock buckle is provided with the clamping hook matched with the hook body on the poking block, so that the poking gear can be guaranteed to reliably drive the zero line lock buckle to act, and the zero line lock buckle can be guaranteed to reliably execute the tripping action.
As shown in fig. 2 and 3, the handle gear 21 is provided with arc handle teeth 211, the rotation amplitude of the arc handle teeth 211 is the same as that of the breaker handle 11, the toggle gear 22 is provided with semi-circular arc teeth 223 matched with the arc handle teeth 211, and the semi-circular arc teeth 223 and the arc handle teeth 211 are meshed to drive and control the breaker handle 11 to be closed. Be provided with on the handle gear with stir the semicircle arc tooth matched with arc handle tooth on the gear to can guarantee that the handle gear can reliably drive the circuit breaker handle and carry out automatic closing action, and after this electronic divide-shut brake mechanism automatic closing, this semicircle arc tooth can not influence the handle gear and carry out manual brake action that divides, and this electronic divide-shut brake mechanism is when electronic closing, electronic brake, all rotates towards a direction, and the motor need not just rotate in a reverse direction, is favorable to prolonging the life of motor.
As shown in fig. 3-7, when the electric switching-on/off mechanism works and receives a switching-on signal, the motor rotates positively, the motor drives the toggle gear through the gear set, the toggle gear drives the handle gear to rotate, and the handle gear drives the breaker handle, so that switching-on of the breaker is realized; at the moment, the toggle gear continuously rotates positively, the toggle gear is separated from the handle gear, and at the moment, the handle is not touched by toggling the handle gear to execute manual brake-separating action; after the breaker is switched on, when the electric switching-on and switching-off mechanism receives a switching-off signal, a stirring block on a stirring gear stirs a zero line lock catch, the zero line lock catch drives the breaker lock catch to act, the breaker is firstly switched off, and a zero line moving contact and a zero line fixed contact are disconnected, so that the electric switching-on and switching-off of the electric switching-on and switching-off mechanism is realized; when the electric switching-on/off mechanism receives the arrearage signal, the poking block is abutted against the zero line lock catch, at the moment, the zero line moving contact and the zero line fixed contact cannot be switched on again, and the circuit breaker cannot be switched on again, so that the arrearage outage function of the electric switching-on/off mechanism is realized. Therefore, the electric opening and closing mechanism has the advantages of simple structure, low cost, low failure rate and safe and reliable performance.
Claims (4)
1. The utility model provides an electronic divide-shut brake mechanism of miniature circuit breaker, includes the casing, sets up intelligent control circuit board in the casing, sets up electronic divide-shut brake subassembly and the tripping device in the casing, its characterized in that: the electric opening and closing assembly comprises a handle gear, a stirring gear, a motor and a gear set, wherein the handle gear is in linkage with the handle of the circuit breaker, the stirring gear is meshed with the handle gear, the motor drives the stirring gear through the gear set, and the stirring gear drives the handle gear to realize the closing or opening of the handle of the circuit breaker; the tripping component comprises a rotating shaft arranged in the shell at one side of the corresponding toggle gear, a zero line contact support arranged on the rotating shaft in a rotating way, a zero line lock catch arranged on the rotating shaft in a rotating way and in linkage fit with the zero line contact support, a zero line moving contact arranged at one end of the zero line contact support, a tension spring arranged between the zero line moving contact and the shell, and a zero line fixed contact arranged in the shell and matched with the zero line moving contact, wherein the other end of the zero line contact support is provided with a toggle shaft, one end of the toggle shaft penetrates through the shell and is connected with the circuit breaker jump buckle, and the zero line contact frame is in linkage fit with the circuit breaker jump buckle, the zero line lock buckle is provided with a linkage shaft, one end of the linkage shaft penetrates through the shell and is connected to the circuit breaker lock buckle, the zero line lock buckle and the circuit breaker lock buckle are in linkage fit, the stirring gear is provided with a stirring block matched with the zero line lock buckle, the stirring block acts along with the stirring gear and can stir the zero line lock buckle, when the electric switching-on and switching-off mechanism works, when the electric switching-on and switching-off mechanism receives a switching-on signal, the motor rotates positively, the motor drives the stirring gear through the gear set, the stirring gear drives the handle gear to rotate, and the handle gear drives the circuit breaker handle, so that switching-on of the circuit breaker is realized; at the moment, the poking gear continuously rotates positively, the poking gear is separated from the handle gear, after the circuit breaker is switched on, when the electric switching-on and switching-off mechanism receives a switching-off signal, the poking block on the poking gear pokes the zero line lock catch, the zero line lock catch drives the circuit breaker to lock catch to act, the circuit breaker is switched off firstly, and the zero line moving contact is disconnected from the zero line fixed contact again, so that the electric switching-off and switching-off of the electric switching-on and switching-off mechanism is realized; when the electric opening and closing mechanism receives the arrearage signal, the poking block is abutted against the zero line lock buckle.
2. The electric opening and closing mechanism of a miniature circuit breaker of claim 1, wherein: the tail part of the poking block is provided with a hook body, the zero line lock buckle is provided with a hook matched with the hook body, and the hook body moves along with the poking block and can poke the hook body to realize the tripping action of the zero line lock buckle.
3. The electric opening and closing mechanism of a miniature circuit breaker according to claim 1 or 2, characterized in that: the handle gear on be provided with arc handle tooth, and arc handle tooth is the same with the rotation range of circuit breaker handle, stir the gear on be provided with arc handle tooth matched with semicircle arc tooth, semicircle arc tooth and arc handle tooth meshing transmission control circuit breaker handle combined floodgate.
4. The electric opening and closing mechanism of a miniature circuit breaker according to claim 1 or 2, characterized in that: the rotating shaft of the motor is provided with a worm, the gear set comprises a first gear and a second gear meshed with the first gear, the first gear is meshed with the worm, and the second gear is meshed with the toggle gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178862.6A CN109767957B (en) | 2019-03-11 | 2019-03-11 | Electric opening and closing mechanism of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178862.6A CN109767957B (en) | 2019-03-11 | 2019-03-11 | Electric opening and closing mechanism of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109767957A CN109767957A (en) | 2019-05-17 |
| CN109767957B true CN109767957B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910178862.6A Active CN109767957B (en) | 2019-03-11 | 2019-03-11 | Electric opening and closing mechanism of miniature circuit breaker |
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| Country | Link |
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| CN (1) | CN109767957B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743840B (en) * | 2020-12-23 | 2024-02-20 | 上海华宿电气股份有限公司 | Manual-automatic mechanical lock |
| 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 |
Citations (7)
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|---|---|---|---|---|
| US5831500A (en) * | 1996-08-23 | 1998-11-03 | Square D Company | Trip flag guide for a circuit breaker |
| CN104916509A (en) * | 2015-06-19 | 2015-09-16 | 浙江天正电气股份有限公司 | Circuit breaker |
| CN105470012A (en) * | 2016-01-08 | 2016-04-06 | 乐清市万联电器有限公司 | Electric operating mechanism for circuit breaker |
| CN205303376U (en) * | 2015-11-26 | 2016-06-08 | 德力西电气有限公司 | Interior driven off by shaft autoeclosing operates controlling means |
| CN205645724U (en) * | 2016-05-19 | 2016-10-12 | 浙江德菱科技股份有限公司 | Electrically -operated mechanism of breaker |
| CN106710990A (en) * | 2016-12-27 | 2017-05-24 | 温州圣普电气有限公司 | Small-sized circuit breaker reclosing mechanism |
| CN207338274U (en) * | 2017-05-13 | 2018-05-08 | 浙江西屋电气股份有限公司 | A kind of external breaker of new electric energy meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7342474B2 (en) * | 2004-03-29 | 2008-03-11 | General Electric Company | Circuit breaker configured to be remotely operated |
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2019
- 2019-03-11 CN CN201910178862.6A patent/CN109767957B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5831500A (en) * | 1996-08-23 | 1998-11-03 | Square D Company | Trip flag guide for a circuit breaker |
| CN104916509A (en) * | 2015-06-19 | 2015-09-16 | 浙江天正电气股份有限公司 | Circuit breaker |
| CN205303376U (en) * | 2015-11-26 | 2016-06-08 | 德力西电气有限公司 | Interior driven off by shaft autoeclosing operates controlling means |
| CN105470012A (en) * | 2016-01-08 | 2016-04-06 | 乐清市万联电器有限公司 | Electric operating mechanism for circuit breaker |
| CN205645724U (en) * | 2016-05-19 | 2016-10-12 | 浙江德菱科技股份有限公司 | Electrically -operated mechanism of breaker |
| CN106710990A (en) * | 2016-12-27 | 2017-05-24 | 温州圣普电气有限公司 | Small-sized circuit breaker reclosing mechanism |
| CN207338274U (en) * | 2017-05-13 | 2018-05-08 | 浙江西屋电气股份有限公司 | A kind of external breaker of new electric energy meter |
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| CN109767957A (en) | 2019-05-17 |
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Address after: 325600 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Huanyu Hi Tech Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Applicant before: HUANYU GROUP ZHEJIANG HIGH-TECH Co.,Ltd. |
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