CN106057600B - Reclosing device of circuit breaker - Google Patents
Reclosing device of circuit breaker Download PDFInfo
- Publication number
- CN106057600B CN106057600B CN201610635322.2A CN201610635322A CN106057600B CN 106057600 B CN106057600 B CN 106057600B CN 201610635322 A CN201610635322 A CN 201610635322A CN 106057600 B CN106057600 B CN 106057600B
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- China
- Prior art keywords
- gear
- circuit breaker
- driving handle
- rotating shaft
- intelligent control
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Classifications
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- 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
Abstract
The invention relates to a reclosing device of a circuit breaker, which comprises a base, an upper cover, a transmission mechanism, an intelligent control circuit board and a tripping mechanism, wherein the transmission mechanism comprises a driving handle, a motor, a worm and a gear assembly, the gear assembly comprises a balance wheel, a rotating shaft and a half gear, a first Hall sensor is arranged on one side of the intelligent control circuit board corresponding to the driving handle, a first sensing piece matched with the first Hall sensor is arranged on the half gear, a second Hall sensor is arranged on the other side of the intelligent control circuit board corresponding to the driving handle, a second sensing piece matched with the second Hall sensor is arranged on the balance wheel, the intelligent control circuit board controls the motor to rotate positively, stop and reversely, the action of the driving transmission mechanism is realized, and the action of the intelligent control circuit board controls the action of the tripping mechanism, so that the automatic reclosing action of the circuit breaker is realized. The invention has the advantages of simple structure, stable and reliable performance and long service life.
Description
Technical Field
The invention relates to the technical field of piezoelectric devices, in particular to a reclosing device of a circuit breaker.
Background
The miniature circuit breaker is widely applied to low-voltage distribution networks, is mainly used in various places such as industry, business, high-rise and civil houses, and can carry out overcurrent protection and leakage protection on electric equipment such as motors, distribution lines, lighting circuits and the like. Along with the development of intelligent power grids in China, the intelligent control of electric appliances is increasingly eager on the premise of requiring the safe operation of the power grids. In order to cope with new situation changes, the existing miniature circuit breakers are provided with reclosing devices, however, the existing miniature circuit breakers have the defects of complex structural design, high production cost, unstable performance and short service life, and when the circuit breaks down and needs the miniature circuit breakers to trip rapidly, the transmission mechanism of the reclosing devices acts insensitively, so that normal opening and closing of the circuit breakers are greatly influenced, thereby causing serious potential safety hazards and failing to ensure the electricity safety of users.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a reclosing device of a circuit breaker, which has the advantages of simple structure, stable and reliable performance and long service life, can effectively realize automatic reclosing and can not influence normal opening and closing of the circuit breaker.
In order to achieve the aim, the invention adopts a reclosing device of a circuit breaker, which comprises a base, an upper cover, a transmission mechanism, an intelligent control circuit board and a tripping mechanism, wherein the transmission mechanism comprises a driving handle rotationally arranged on the base, a motor arranged in the base, a worm arranged on a rotating shaft of the motor, and a gear component arranged in the base at the position between the corresponding driving handle and the worm, the driving handle is used for driving the circuit breaker handle, a handle gear is arranged on the driving handle, a positioning rod is arranged in the base at the position between the corresponding driving handle and the worm, the gear component is arranged on the positioning rod, the gear component comprises a balance wheel, a rotating shaft and a half gear, the balance wheel and the rotating shaft are movably sleeved on the positioning rod in sequence, the lower end of the rotating shaft is clamped on the balance wheel, the balance wheel and the rotating shaft are in linkage, the upper end of the rotating shaft is provided with a gear which is meshed with a handle gear on the driving handle, the half gear is meshed with a worm, the half gear is sleeved on the positioning rod, the rotating shaft is provided with a groove body matched with the half gear, the half gear is in linkage fit with the rotating shaft in the clockwise direction and is in free fit in the anticlockwise direction, one side of the intelligent control circuit board corresponding to the driving handle is provided with a first Hall sensor, the half gear is provided with a first sensing piece matched with the first Hall sensor, the other side of the intelligent control circuit board corresponding to the driving handle is provided with a second Hall sensor, the balance wheel is provided with a second sensing piece matched with the second Hall sensor, the intelligent control circuit board controls the motor to rotate forwards, stop and rotate reversely, and the driving transmission mechanism acts to realize the automatic reclosing action of the circuit breaker, the intelligent control circuit board controls the tripping mechanism to act, so that the automatic opening action of the circuit breaker is realized.
The beneficial effects of the structure are as follows: the reclosing device of the circuit breaker has the advantages of simple structure, stable and reliable performance and long service life, when in reclosing, the intelligent control circuit board controls the motor to rotate positively, the motor drives the worm to rotate, the worm drives the half gear to rotate clockwise, the half gear drives the rotating shaft to rotate, the rotating shaft drives the balance wheel and the gear to rotate clockwise, the gear drives the driving handle to rotate, and the driving handle drives the circuit breaker handle to realize automatic reclosing of the circuit breaker; in the reclosing device, when a driving handle completes the reclosing action, a second Hall sensor on an intelligent control circuit board receives a signal of a second sensing piece on a balance wheel, the intelligent control circuit board controls a motor to stop rotating and control the motor to rotate reversely, the motor drives a worm to rotate reversely, a worm drives a half gear to rotate anticlockwise, and the half gear and a rotating shaft are freely matched in the anticlockwise direction, so that the rotating shaft does not rotate; when the reclosing device is tripped, the half gear is freely matched with the rotating shaft, so that the gear loses the limit of the half gear, the driving handle drives the gear to rotate rapidly anticlockwise, abrasion of the driving handle to the gear is avoided, the service life of the reclosing device is prolonged, the circuit breaker is guaranteed to be capable of being tripped rapidly, and accordingly the working reliability of the reclosing device is greatly improved.
Particularly, one side of the base corresponding to the driving handle is provided with an anti-misoperation mechanism, the anti-misoperation mechanism comprises a sliding block movably arranged in a sliding groove on the base, a micro switch and a damper, the micro switch and the damper are arranged on an intelligent control circuit board corresponding to the sliding block, one side of the sliding block is provided with a clamping groove, one end of the damper is clamped in the clamping groove, the other end of the damper is clamped in the clamping groove on the driving handle, the other side of the sliding block is provided with a bump corresponding to a contact of the micro switch, and the bump acts along with the sliding block and can push the contact of the micro switch to realize the connection and the disconnection of the micro switch. Through preventing maloperation mechanism at the base to improve the security performance of this reclosing device greatly, when low voltage distribution network needs maintenance, maintenance personal pulls out the slider, and the lug on the slider touches micro-gap switch, and micro-gap switch closes, stops the power supply to intelligent control circuit board, thereby can prevent to come into charge suddenly and make the actuating handle switch-on, and the attenuator can lock actuating handle with the action of pulling out of slider, avoids actuating handle to make actuating handle switch-on because of maintenance personal's mistake touch, thereby can effectually avoid causing the incident.
The tripping mechanism comprises a shunt tripping device arranged in a base, a tripping buckle matched with the shunt tripping device and a tripping shaft connected between the tripping buckle and a bracket of the circuit breaker, wherein the shunt tripping device comprises a coil bracket fixed in the base, a coil arranged on the coil bracket, a push rod arranged in the coil bracket and matched with the tripping buckle, a static iron core arranged on the push rod, a movable iron core arranged in the coil bracket and corresponding to the lower end of the push rod, and a spring sleeved on the push rod, wherein one end of the spring is abutted against the movable iron core, the other end of the spring is abutted against the static iron core, and the push rod follows the action of the iron core and pushes the tripping buckle to realize the automatic opening action of the circuit breaker. When the intelligent control circuit board receives an overcurrent or leakage signal, the intelligent circuit board controls the shunt release to act, the movable iron core of the shunt release compresses the spring and pushes the push rod to act, the push rod drives the trip to act, the trip drives the trip shaft to act, and the trip shaft drives the movable contact of the circuit breaker to act, so that quick switching-off of the circuit breaker is realized.
Specifically, the two sides of the upper cover are respectively and movably provided with a splicing clamping piece, the splicing clamping piece comprises a clamping piece body, a rotating shaft arranged at the lower end of the clamping piece body, a clamping hook arranged at the upper end of the clamping piece body, the rotating shaft is clamped in a mounting groove of the upper cover, the clamping hook penetrates through the mounting groove and is exposed on the upper end face of the upper cover, one side of the clamping piece body is provided with a clamping block matched with the upper cover, and the other side of the clamping piece body is provided with a limiting block which is abutted against the side wall of the upper cover. Through being provided with two and assembling the fastener on the upper cover, when this reclosing device and circuit breaker assembled, will splice the fastener earlier and revolute the upper cover outside reversal, laminate the circuit breaker on the upper cover again, finally with the trip card dress of splice the fastener on the shell of circuit breaker, can accomplish the assembly of circuit breaker and reclosing device fast.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a front view of the present invention with the cover removed.
Fig. 3 is a front perspective view of the internal structure of the present invention.
Fig. 4 is a rear perspective view of the internal structure of the present invention.
Fig. 5 is a perspective view of the gear assembly of the present invention.
Fig. 6 is a front view of an embodiment of the present invention.
Fig. 7 is a cross-sectional view A-A of fig. 6.
Fig. 8 is a cross-sectional view of a shunt release of the present invention.
FIG. 9 is a perspective view of a splice clip of the present invention.
Detailed Description
As shown in fig. 1 to 9, the embodiment of the invention is a reclosing device of a circuit breaker, which comprises a base 10, an upper cover 11, a transmission mechanism 20, an intelligent control circuit board 30 and a tripping mechanism 40, wherein the transmission mechanism 20 comprises a driving handle 23 rotatably arranged on the base 10, a motor 21 arranged in the base 10, a worm 22 arranged on a rotating shaft of the motor, a gear assembly 24 arranged in the base 10 and corresponding to the position between the driving handle 23 and the worm 22, the driving handle 23 is used for driving the circuit breaker handle, a handle gear 231 is arranged on the driving handle 23, an misoperation preventing mechanism 50 is arranged on one side of the base 10 corresponding to the driving handle 23, a positioning rod 101 is arranged in the base 10 and corresponding to the position between the driving handle 23 and the worm 22, the gear assembly 24 is arranged on the positioning rod 101, the gear assembly 24 comprises a balance wheel 25, a rotating shaft 26 and a half gear 27, wherein the balance wheel 25 and the rotating shaft 26 are sequentially and movably sleeved on a positioning rod 101, the lower end of the rotating shaft 26 is clamped on the balance wheel 25, the balance wheel 25 and the rotating shaft 26 are in linkage arrangement, a gear 28 is arranged at the upper end of the rotating shaft 26, the gear 28 is meshed with a handle gear 231 on a driving handle 23, the half gear 27 is meshed with a worm 22, the half gear 27 is sleeved on the positioning rod 101, the rotating shaft 26 is provided with a groove 261 matched with the half gear 22, the half gear 27 is in linkage fit with the rotating shaft 26 in a clockwise direction and is in free fit in a anticlockwise direction, a first Hall sensor 31 is arranged on one side of an intelligent control circuit board 30 corresponding to the driving handle 23, a first sensing element 271 matched with the first Hall sensor 31 is arranged on the half gear 27, the intelligent control circuit board 30 is provided with a second Hall sensor 32 at the other side corresponding to the driving handle 23, the balance wheel 25 is provided with a second sensing piece 251 matched with the second Hall sensor 32, the intelligent control circuit board 30 controls the motor 21 to rotate forwards, stop and rotate reversely, the driving transmission mechanism 20 is driven to act so as to realize the automatic reclosing action of the circuit breaker, and the intelligent control circuit board 30 controls the tripping mechanism 40 to act so as to realize the automatic opening action of the circuit breaker.
As shown in fig. 2 to 4, the misoperation preventing mechanism 50 includes a sliding block 51 movably disposed in a sliding groove on the base 10, a micro switch 52 disposed on the intelligent control circuit board 30 corresponding to the sliding block 51, and a damper 53, wherein a clamping groove 512 is disposed on one side of the sliding block 51, one end of the damper 53 is clamped in the clamping groove 512, the other end of the damper 53 is clamped in a clamping groove 232 on the driving handle 23, a bump 511 is disposed on the other side of the sliding block 51 corresponding to a contact 521 of the micro switch 52, and the bump 511 acts with the sliding block 51 and can push the contact 521 of the micro switch 52 to switch on and off the micro switch 52. Through preventing maloperation mechanism at the base to improve the security performance of this reclosing device greatly, when low voltage distribution network needs maintenance, maintenance personal pulls out the slider, and the lug on the slider touches micro-gap switch, and micro-gap switch closes, stops the power supply to intelligent control circuit board, thereby can prevent to come into charge suddenly and make the actuating handle switch-on, and the attenuator can lock actuating handle with the action of pulling out of slider, avoids actuating handle to make actuating handle switch-on because of maintenance personal's mistake touch, thereby can effectually avoid causing the incident.
As shown in fig. 2, 3 and 8, the trip mechanism 40 includes a shunt trip 41 disposed in the base 10, a trip button 42 matched with the shunt trip 41, and a trip shaft 43 connected between the trip button 42 and a bracket of the circuit breaker, the shunt trip 41 includes a coil bracket 411 fixed in the base 10, a coil 412 disposed on the coil bracket 411, a push rod 414 disposed in the coil bracket 411 and matched with the trip button 42, a static iron core 413 disposed on the push rod 414, a movable iron core 415 disposed in the coil bracket 411 corresponding to a lower end of the push rod 414, and a spring 416, wherein one end of the spring 416 is sleeved on the push rod 414, the other end of the spring 416 is abutted against the movable iron core 415, the push rod 414 moves with the movable iron core 415 and pushes the trip button 42, so as to realize automatic switching action of the circuit breaker. When the intelligent control circuit board receives an overcurrent or leakage signal, the intelligent circuit board controls the shunt release to act, the movable iron core of the shunt release compresses the spring and pushes the push rod to act, the push rod drives the trip to act, the trip drives the trip shaft to act, and the trip shaft drives the movable contact of the circuit breaker to act, so that quick switching-off of the circuit breaker is realized.
As shown in fig. 6, 7 and 9, two sides of the upper cover 11 are respectively movably provided with a splicing clamping piece 60, the splicing clamping piece 60 comprises a clamping piece body 61, a rotating shaft 62 arranged on the lower end of the clamping piece body 61, a clamping hook 63 arranged on the upper end of the clamping piece body 61, the rotating shaft 62 is clamped in a mounting groove 111 of the upper cover 11, the clamping hook 63 passes through the mounting groove 111 to be exposed on the upper end surface of the upper cover 11, one side of the clamping piece body 61 is provided with a clamping block 64 matched with the upper cover 11, and the other side of the clamping piece body 61 is provided with a limiting block 65 which is abutted against the side wall of the upper cover 11. Through being provided with two and assembling the fastener on the upper cover, when this reclosing device and circuit breaker assembled, will splice the fastener earlier and revolute the upper cover outside reversal, laminate the circuit breaker on the upper cover again, finally with the trip card dress of splice the fastener on the shell of circuit breaker, can accomplish the assembly of circuit breaker and reclosing device fast.
The reclosing device of the circuit breaker has the advantages of simple structure, stable and reliable performance and long service life, when in reclosing, the intelligent control circuit board controls the motor to rotate positively, the motor drives the worm to rotate, the worm drives the half gear to rotate clockwise, the half gear drives the rotating shaft to rotate, the rotating shaft drives the balance wheel and the gear to rotate clockwise, the gear drives the driving handle to rotate, and the driving handle drives the circuit breaker handle to realize automatic reclosing of the circuit breaker; in the reclosing device, when a driving handle completes the reclosing action, a second Hall sensor on an intelligent control circuit board receives a signal of a second sensing piece on a balance wheel, the intelligent control circuit board controls a motor to stop rotating and control the motor to rotate reversely, the motor drives a worm to rotate reversely, a worm drives a half gear to rotate anticlockwise, and the half gear and a rotating shaft are freely matched in the anticlockwise direction, so that the rotating shaft does not rotate; when the reclosing device is tripped, the half gear is freely matched with the rotating shaft, so that the gear loses the limit of the half gear, the driving handle drives the gear to rotate rapidly anticlockwise, abrasion of the driving handle to the gear is avoided, the service life of the reclosing device is prolonged, the circuit breaker is guaranteed to be capable of being tripped rapidly, and accordingly the working reliability of the reclosing device is greatly improved.
Claims (4)
1. The utility model provides a reclosing device of circuit breaker, includes base, upper cover, drive mechanism, intelligent control circuit board, tripping device, its characterized in that: the transmission mechanism comprises a driving handle arranged on the base, a motor arranged in the base, a worm arranged on a rotating shaft of the motor, and a gear assembly arranged in the base at the position between the corresponding driving handle and the worm, wherein the driving handle is used for driving the breaker handle, a handle gear is arranged on the driving handle, a positioning rod is arranged in the base at the position between the corresponding driving handle and the worm, the gear assembly is arranged on the positioning rod and comprises a balance wheel, a rotating shaft and a half gear, the balance wheel and the rotating shaft are movably sleeved on the positioning rod in sequence, the lower end of the rotating shaft is clamped on the balance wheel, the balance wheel is in linkage with the rotating shaft, the upper end of the rotating shaft is provided with a gear, the gear is meshed with the handle gear on the driving handle, the half gear is meshed with the worm, the semi-gear is sleeved on the positioning rod, a groove body matched with the semi-gear is arranged on the rotating shaft, the semi-gear is in linkage fit with the rotating shaft in the clockwise direction and is in free fit in the anticlockwise direction, a first Hall sensor is arranged on one side of the intelligent control circuit board corresponding to the driving handle, a first sensing piece matched with the first Hall sensor is arranged on the semi-gear, a second Hall sensor is arranged on the other side of the intelligent control circuit board corresponding to the driving handle, a second sensing piece matched with the second Hall sensor is arranged on the balance wheel, the intelligent control circuit board controls the motor to rotate forwards, stop and rotate reversely, the driving transmission mechanism acts to realize automatic reclosing action of the circuit breaker, and the intelligent control circuit board controls the tripping mechanism to act to realize automatic opening action of the circuit breaker.
2. The reclosing device of a circuit breaker according to claim 1, wherein: one side of the base corresponding to the driving handle is provided with an anti-misoperation mechanism, the anti-misoperation mechanism comprises a sliding block movably arranged in a sliding groove on the base, a micro switch and a damper, the micro switch and the damper are arranged on an intelligent control circuit board corresponding to the sliding block, one side of the sliding block is provided with a clamping groove, one end of the damper is clamped in the clamping groove, the other end of the damper is clamped in the clamping groove on the driving handle, the other side of the sliding block is provided with a protruding block corresponding to the contact of the micro switch, and the protruding block acts along with the sliding block and can push the contact of the micro switch to realize the connection and the disconnection of the micro switch.
3. The reclosing device of a circuit breaker according to claim 1, wherein: the tripping mechanism comprises a shunt tripping device arranged in a base, a tripping buckle matched with the shunt tripping device and a tripping shaft connected between the tripping buckle and a bracket of the circuit breaker, wherein the shunt tripping device comprises a coil bracket fixed in the base, a coil arranged on the coil bracket, a push rod arranged in the coil bracket and matched with the tripping buckle, a static iron core arranged on the push rod, a movable iron core arranged in the coil bracket and a spring arranged at the lower end of the corresponding push rod, wherein the spring is sleeved on the push rod, one end of the spring is abutted against the movable iron core, the other end of the spring is abutted against the static iron core, and the push rod moves with the movable iron core and pushes the tripping buckle to realize automatic opening action of the circuit breaker.
4. A reclosing device for a circuit breaker according to claim 1 or 2 or 3, characterized in that: the upper cover both sides on the activity respectively be provided with a piece of amalgamation fastener, the piece of assembling include the fastener body, set up pivot on fastener body lower extreme, set up the trip on the fastener body upper end the pivot clamping in the mounting groove of upper cover, the trip pass the mounting groove and expose on the up end of upper cover, be provided with on one side of fastener body with upper cover matched with fixture block, be provided with the stopper of contradicting on the lateral wall of upper cover on the opposite side of fastener body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635322.2A CN106057600B (en) | 2016-08-05 | 2016-08-05 | Reclosing device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635322.2A CN106057600B (en) | 2016-08-05 | 2016-08-05 | Reclosing device of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106057600A CN106057600A (en) | 2016-10-26 |
| CN106057600B true CN106057600B (en) | 2023-09-19 |
Family
ID=57480128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635322.2A Active CN106057600B (en) | 2016-08-05 | 2016-08-05 | Reclosing device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106057600B (en) |
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| CN106783441A (en) * | 2017-03-17 | 2017-05-31 | 乐清杰贝特电子科技有限公司 | New type auto reclosing double worm mechanism |
| CN108023329A (en) * | 2017-06-29 | 2018-05-11 | 苏州高鹏光电科技有限公司 | A kind of new type auto reclosing protector |
| CN107424885B (en) * | 2017-06-29 | 2019-08-09 | 温州市正松电气有限公司 | A kind of auto recloser |
| CN108133873B (en) * | 2018-01-17 | 2024-03-19 | 杭州之江开关股份有限公司 | Circuit breaker undervoltage reclosing electric signal output device and operation method thereof |
| CN108198737A (en) * | 2018-03-03 | 2018-06-22 | 林蔓琦 | A kind of prepayment breaker reclosing device and implementation method |
| CN109599304A (en) * | 2018-12-26 | 2019-04-09 | 珠海天沃电力科技有限公司 | A kind of novel breaker gear |
| CN113130268B (en) * | 2021-04-21 | 2022-08-26 | 浙江中亿豪科技有限公司 | Circuit breaker with handle-driven auxiliary switch |
| CN113838302B (en) * | 2021-09-18 | 2023-02-03 | 特斯联科技集团有限公司 | Intelligent parking lot |
| CN114220700B (en) * | 2021-12-25 | 2024-02-23 | 浙江新控电气科技有限公司 | Multifunctional control and protection switch electric appliance |
| CN114334563A (en) * | 2022-01-17 | 2022-04-12 | 王建 | Integrated circuit breaker with linkage operating mechanism |
| CN114446730A (en) * | 2022-01-24 | 2022-05-06 | 宏秀电气有限公司 | Automatic reclosing device |
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| CN106057600A (en) | 2016-10-26 |
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