CN110473746B - Automatic reclosing circuit breaker and misoperation prevention method for handle - Google Patents
Automatic reclosing circuit breaker and misoperation prevention method for handle Download PDFInfo
- Publication number
- CN110473746B CN110473746B CN201910594608.4A CN201910594608A CN110473746B CN 110473746 B CN110473746 B CN 110473746B CN 201910594608 A CN201910594608 A CN 201910594608A CN 110473746 B CN110473746 B CN 110473746B
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- handle
- switching
- circuit breaker
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- gear
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 title claims description 5
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 240000007643 Phytolacca americana Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002085 persistent effect 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
- H01H71/02—Housings; Casings; Bases; Mountings
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- Breakers (AREA)
Abstract
An automatic reclosing circuit breaker and a method for preventing misoperation of a handle. The circuit board comprises a contact detection module, a handle detection module and a driving module, wherein the contact detection module acquires feedback signals from a circuit breaker contact, the handle detection module acquires sensing signals of the Hall sensor, and the driving module is controlled by the circuit board according to the feedback signals and control signals sent by the sensing signals. According to the invention, the handle detection mechanism detects the position information of the handle under abnormal conditions to control the working state of the motor, so that the damage to equipment caused by misoperation of the handle is prevented.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a handle misoperation preventing device of an automatic reclosing circuit breaker.
Background
When a certain fault cause of a system is switched off, the existing breaker with the automatic reclosing function can be automatically reclosed by a mechanical device or a relay automatic device, for example, the fault of a power system is temporary, the breaker is tripped by a relay protection device to cut off a power supply, and then the breaker is automatically reclosed after a preset time, if the fault is eliminated automatically, the power supply is restored again by a circuit; if the fault is persistent, the circuit breaker is tripped again and no longer recloses.
However, the existing automatic reclosing circuit breaker has no function of reacting to misoperation of a user, for example, when a power system is still in fault, the user can forcedly dial a handle at a switching-off position to a switching-on position or forcedly manually dial the handle to the switching-on position during switching-off, so that the circuit breaker can be damaged or destroyed, and even other devices are affected.
Disclosure of Invention
The invention provides a handle misoperation preventing device of an automatic reclosing circuit breaker, which aims to solve the problem that the existing automatic reclosing circuit breaker has no misoperation preventing function in the background technology.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a handle anti-misoperation method of automatic reclosing circuit breaker, is equipped with position detection module, sampling module, drive module and treater on the circuit board in the circuit breaker, the treater respectively with drive module the position detection module with sampling module electricity is connected, position detection module is used for obtaining the position signal of operating handle, sampling module is used for obtaining actual electric wire netting's parameter, the treater is according to received position signal with the operating condition of parameter control drive module.
The control method of the processor specifically comprises the following steps:
The sampling module obtains the current power grid parameters as sampling values and sends the sampling values to the processor;
The position detection module obtains a position signal of a current handle through a Hall sensor and sends the position signal to the processor;
Step (3) the processor controls the driving module through the sampling value and the position signal: when the sampling value is an abnormal value, a tripping mechanism of the circuit breaker is driven to be in a switching-off state by a switching-on/off motor, and if the position signal is used for judging that the operating handle is in a switching-on position, the processor sends a control signal to enable the driving module to cut off a power supply of the switching-on/off motor; otherwise, the driving module normally supplies power for the opening and closing motor.
The parameter is an actual voltage or an actual current.
The utility model provides an automatic reclosing circuit breaker, includes circuit board, divide-shut brake mechanism, divide-shut brake motor, handle position detection mechanism and drive gear group, handle position detection mechanism includes operating handle, magnetic part, hall sensor, operating handle with gear group linkage cooperation, divide-shut brake motor magnetic part locates on the operating handle, hall sensor locate on the circuit board and with magnetic part position on the operating handle corresponds, be equipped with treater, sampling module, position detection module and drive module on the circuit board.
The switching-on and switching-off mechanism comprises a tripping pull rod, a driving gear, a first transmission gear and a tripping gear, wherein the driving gear is in linkage fit with the switching-on and switching-off motor, and the driving gear, the first transmission gear and the tripping gear are sequentially meshed for transmission.
The operating handle is provided with a second transmission gear which is in linkage fit with the tripping gear.
The circuit board is provided with a first contact switch and a second contact switch, the tripping gear is provided with a poking block, and the poking block rotates along with the tripping gear and can poke the first contact switch and the second contact switch so as to control the on-off state of the first contact switch and the second contact switch.
The magnetic piece is a powerful permanent magnet.
The Hall sensor is arranged on the circuit board and corresponds to the position of the magnetic piece on the first transmission gear during closing.
The beneficial effects of the invention are as follows: according to the invention, the handle detection mechanism is used for detecting the position signal of the handle under abnormal conditions to control the working state of the motor, when the circuit breaker contacts are used for detecting that the circuit is abnormal to trip, the handle detection mechanism is used for obtaining the position signal of the handle, if the handle is used for carrying out abnormal switching-on operation, the circuit board is used for obtaining the induction signal of the Hall sensor, the circuit is abnormal according to the feedback signal of the contacts, and then the handle is used for obtaining the abnormal switching-on position according to the induction signal, and the driving module of the circuit board is used for stopping the motor, so that the handle can not control the circuit breaker to switch on, and the damage to equipment caused by misoperation of the handle is prevented.
Drawings
Fig. 1 and fig. 2 are schematic structural diagrams of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a circuit board structure according to an embodiment of the invention.
Fig. 4 is a schematic diagram of a first transmission gear structure according to an embodiment of the invention.
Fig. 5 is a functional block diagram of an embodiment of the present invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
In the embodiment of the invention, as shown in the figure, the automatic reclosing circuit breaker comprises a shell 1, wherein the shell 1 internally comprises a circuit board 2, a motor 14 and a switching-on/off mechanism, the motor 14 is controlled by a control signal sent by the circuit board 2 so as to enable a switching-on/off assembly to perform switching-on or switching-off, a handle detection mechanism is further arranged in the shell 1, the handle detection mechanism comprises an operation handle 3, a magnetic part 4 and a Hall sensor 5, the operation handle 3 is connected with the motor 14 in a linkage way through a first transmission gear 6, the magnetic part 4 is arranged on the first transmission gear 6, the Hall sensor 5 is arranged on the circuit board 2 and corresponds to the position of the magnetic part 4 on the first transmission gear 6, the circuit board 2 comprises a contact detection module, a handle detection module and a driving module, the contact detection module obtains a feedback signal from a breaker contact, the handle detection module obtains an induction signal of the Hall sensor, the driving module calculates the working state of the magnetic chip according to the feedback signal and the corresponding control signal of the motor, and the magnetic part has a permanent magnet processor function.
The switching-on and switching-off mechanism comprises a tripping pull rod 11, a driving gear 12, a second transmission gear 13 and a tripping gear 9, wherein the driving gear 12, the second transmission gear 13, the tripping gear 9 and the first transmission gear 6 are sequentially meshed for transmission, the driving gear 12 is in linkage fit with an output shaft of a motor 14, a thread is arranged on the output shaft of the motor 14, the driving gear 12 is in thread meshing transmission with the output shaft, and the operating handle 3 is in linkage fit with the tripping gear 9 through the first transmission gear 6.
The circuit board 2 is provided with a first contact switch 7 and a second contact switch 8, a tripping gear 9 of the opening and closing mechanism 14 is provided with a toggle block 10, the toggle block 10 rotates along with the tripping gear 9, in this embodiment, the first contact switch 7 and the second contact switch 8 are respectively arranged at an opening position and a closing position corresponding to the tripping gear 9 on the circuit board, the motor 14 drives the tripping gear 9 to rotate through a driving gear 12 and a second transmission gear 13, when the tripping gear 9 rotates to the opening position or the closing position of tripping, the first contact switch 7 or the second contact switch 8 is toggled to trigger a circuit signal, and the circuit board 2 acquires the rotating position of the tripping gear according to the received signal sent by the first contact switch 7 or the second contact switch 8 so as to accurately control the running state of the motor.
The misoperation prevention method for the handle comprises the following specific steps: the sampling module obtains the current power grid parameters as sampling values and sends the sampling values to the processor;
The position detection module obtains a position signal of a current handle through a Hall sensor and sends the position signal to the processor;
Step (3) the processor controls the driving module through the sampling value and the position signal: when the sampling value is an abnormal value, a tripping mechanism of the circuit breaker is driven to be in a switching-off state by a switching-on/off motor, and if the position signal is used for judging that the operating handle is in a switching-on position, the processor sends a control signal to enable the driving module to cut off a power supply of the switching-on/off motor; otherwise, the driving module normally supplies power for the opening and closing motor.
The handle detection mechanism is used for acquiring a position signal of the handle and preventing the handle from being unable to reach the correct position due to mechanical reasons or artificial misoperation in the work of the circuit breaker, so that the circuit breaker executes wrong actions to cause equipment damage. The handle detection mechanism mainly comprises an operating handle 3, a magnetic piece 4 and a Hall sensor 5. The magnetic part 4 adopts a powerful permanent magnet, and is arranged on a linkage device of a handle of the circuit breaker and a switching-on and switching-off mechanism, and in the embodiment, the magnetic part 4 is arranged on the first transmission gear 6. The hall sensor 5 install in the circuit board, in this embodiment, the hall sensor 5 locate on the circuit board and with when closing a floodgate the position of the magnetism spare 4 on the first drive gear corresponds, detect whether operating handle 3 is located on the exact closing position through a hall sensor 5, specific anti-misoperation principle is: after the normal working breaker executes the opening of the system in case of accident, if the position of the handle is cut to the closing position due to mechanical reasons or manual operation when the accident is not processed, a processor on the circuit board judges that the accident is in the accident condition at present according to the voltage signal detected by the contact, and then the processor knows that the operating handle 3 is in an abnormal position (the normal position should be at the opening position) according to the position of the operating handle 3 obtained by the Hall sensor 5, so that the processor controls the driving module to enable the motor to be powered off and not work, thereby avoiding the damage caused by the closing of the breaker.
In other embodiments, the hall sensor may be disposed at a position of a circuit board corresponding to a position of a magnetic element on the first transmission gear when the switch is opened, or two hall sensors including a first hall sensor and a second hall sensor are adopted, where the first hall sensor corresponds to the position of the magnetic element on the first transmission gear when the switch is closed; the second Hall sensor corresponds to the position of the magnetic part on the first transmission gear during opening, and the purposes of acquiring the position of the handle and preventing misoperation can be achieved.
The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (8)
1. A method for preventing misoperation of a handle of an automatic reclosing breaker is characterized in that: the circuit board in the circuit breaker is provided with a position detection module, a sampling module, a driving module and a processor, wherein the processor is respectively and electrically connected with the driving module, the position detection module and the sampling module, the position detection module is used for acquiring a position signal of an operating handle, the sampling module is used for acquiring parameters of an actual power grid, and the processor controls the working state of the driving module according to the received position signal and the received parameters;
The control method of the processor specifically comprises the following steps: the sampling module obtains the current power grid parameters as sampling values and sends the sampling values to the processor; the position detection module obtains a position signal of a current handle through a Hall sensor and sends the position signal to the processor; step (3) the processor controls the driving module through the sampling value and the position signal: when the sampling value is an abnormal value, a tripping mechanism of the circuit breaker is driven to be in a switching-off state by a switching-on/off motor, and if the position signal is used for judging that the operating handle is in a switching-on position, the processor sends a control signal to enable the driving module to cut off a power supply of the switching-on/off motor; otherwise, the driving module normally supplies power for the opening and closing motor.
2. The method for preventing misoperation of the handle of the automatic reclosing circuit breaker according to claim 1 is characterized in that: the parameter is an actual voltage or an actual current.
3. An automatic reclosing circuit breaker, characterized in that: the automatic switching device comprises a circuit board (2), a switching-on and switching-off mechanism, a switching-off and switching-off motor (14), a handle position detection mechanism and a transmission gear set, wherein the handle position detection mechanism comprises an operation handle (3), a magnetic piece (4) and a Hall sensor (5), the operation handle (3) is in linkage fit with the gear set, the switching-on and switching-off motor is arranged on the operation handle (3), the Hall sensor (5) is arranged on the circuit board (2) and corresponds to the position of the magnetic piece (4) on the operation handle (3), a processor, a sampling module, a position detection module and a driving module are arranged on the circuit board (2), and the misoperation prevention method for the handle specifically comprises the following steps: the sampling module obtains the current power grid parameters as sampling values and sends the sampling values to the processor; the position detection module obtains a position signal of a current handle through a Hall sensor and sends the position signal to the processor; step (3) the processor controls the driving module through the sampling value and the position signal: when the sampling value is an abnormal value, a tripping mechanism of the circuit breaker is driven to be in a switching-off state by a switching-on/off motor, and if the position signal is used for judging that the operating handle is in a switching-on position, the processor sends a control signal to enable the driving module to cut off a power supply of the switching-on/off motor; otherwise, the driving module normally supplies power for the opening and closing motor.
4. A recloser circuit breaker according to claim 3 wherein: the switching-on and switching-off mechanism comprises a tripping pull rod (11), a driving gear (12), a first transmission gear (13) and a tripping gear (9), wherein the driving gear (12) is in linkage fit with a switching-off and switching-on motor (14), and the driving gear (12), the first transmission gear (13) and the tripping gear (9) are sequentially meshed for transmission.
5. The automatic reclosing circuit breaker of claim 4, wherein: the operating handle (3) is provided with a second transmission gear (6), and the second transmission gear (6) is in linkage fit with the tripping gear (9).
6. A recloser circuit breaker according to claim 3 wherein: be equipped with first contact switch (7) and second contact switch (8) on circuit board (2), be equipped with on trip gear (9) and stir piece (10), stir piece (10) along with trip gear (9) rotate and can stir first contact switch (7) and second contact switch (8) are in order to control the break-make state of both.
7. A handle anti-misoperation device of an automatic reclosing circuit breaker according to claim 3, wherein: the magnetic piece (4) is a powerful permanent magnet.
8. The handle misoperation prevention apparatus for automatic reclosing circuit breaker according to claim 4, wherein: the Hall sensor (5) is arranged on the circuit board (2) and corresponds to the position of the magnetic part (4) on the first transmission gear during closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594608.4A CN110473746B (en) | 2019-07-03 | 2019-07-03 | Automatic reclosing circuit breaker and misoperation prevention method for handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594608.4A CN110473746B (en) | 2019-07-03 | 2019-07-03 | Automatic reclosing circuit breaker and misoperation prevention method for handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110473746A CN110473746A (en) | 2019-11-19 |
| CN110473746B true CN110473746B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910594608.4A Active CN110473746B (en) | 2019-07-03 | 2019-07-03 | Automatic reclosing circuit breaker and misoperation prevention method for handle |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539758A (en) * | 2020-04-17 | 2021-10-22 | 浙江正泰电器股份有限公司 | Automatic closing module of circuit breaker |
| CN111760270A (en) * | 2020-06-30 | 2020-10-13 | 歌尔科技有限公司 | Rocker drift processing method and device and related components |
| CN112002589A (en) * | 2020-07-17 | 2020-11-27 | 浙江万胜智能科技股份有限公司 | Small-size autoeclosing circuit breaker transmission position detects structure |
| CN112349558A (en) * | 2020-11-11 | 2021-02-09 | 华翔翔能科技股份有限公司 | Circuit breaker adopting multiple control modes |
| CN112684336A (en) * | 2020-12-29 | 2021-04-20 | 珠海铠湾智电科技有限公司 | Circuit breaker state detection system |
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| CN108091527A (en) * | 2018-02-02 | 2018-05-29 | 深圳曼顿科技有限公司 | Sliceable miniature circuit breaker with voltage and current sensor |
| CN208608783U (en) * | 2018-08-01 | 2019-03-15 | 许昌许继低压电器有限公司 | It is a kind of for grid-connected small-sized reclosing controller |
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Patent Citations (8)
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| CN105006409A (en) * | 2015-07-27 | 2015-10-28 | 德力西电气有限公司 | Automatic brake switching and closing operation device |
| CN205723214U (en) * | 2016-03-14 | 2016-11-23 | 北京Abb低压电器有限公司 | A kind of circuit breaker handle divide-shut brake testing circuit and chopper |
| KR20170123091A (en) * | 2016-04-28 | 2017-11-07 | 엘에스산전 주식회사 | Molded Case Circuit Breaker with function of Protecting Overheat |
| JP2017212171A (en) * | 2016-05-27 | 2017-11-30 | 富士電機機器制御株式会社 | Protective cover of circuit breaker |
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| CN110473746A (en) | 2019-11-19 |
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