CN212434496U - Quick closing device of circuit breaker - Google Patents

Abstract

The utility model discloses a circuit breaker rapid switching-on device, including combined floodgate energy storage mechanism and combined floodgate control mechanism, combined floodgate energy storage mechanism includes circuit breaker combined floodgate drive shaft, crank link mechanism and combined floodgate energy storage spring, and the one end of circuit breaker combined floodgate drive shaft is connected with the circuit breaker handle, and the other end is connected with crank link mechanism, and crank link mechanism and combined floodgate energy storage spring are connected; the switching-on control mechanism comprises a controller, an energy storage driving mechanism, an energy storage releasing mechanism and a switching-on pushing crank, wherein the controller is respectively electrically connected with the energy storage driving mechanism and the energy storage releasing mechanism, the energy storage driving mechanism is connected with the switching-on pushing crank and used for driving the switching-on pushing crank to compress a switching-on energy storage spring, mechanical energy required by the rapid switching-on of the circuit breaker can be stored in an elastic potential energy mode, when the circuit breaker needs rapid switching-on, the elastic potential energy releasing device is triggered by controlled electromagnetic force, the elastic potential energy is rapidly converted into the mechanical energy required by the switching-on of the circuit breaker.

Description

Quick closing device of circuit breaker

Technical Field

The utility model relates to an electrical switching technical field especially relates to a quick closing device of circuit breaker.

Background

For applications with strict requirements on continuous power supply, dual power supplies are necessary and switching between the two power supplies is required to be on the order of several milliseconds. The single UPS only ensures that the electrical appliance at the lower port is not influenced when the commercial power is cut off, and if the UPS fails, the guarantee does not exist. Therefore, if two independent power supply systems are required to achieve the purpose, switching between the two independent power supply systems is guaranteed to be in millisecond level, and the isolation interlocking of disconnecting the contact is needed between the main power supply and the standby power supply, so that the requirement is difficult to achieve by reliable technology and low cost.

At present, the existing circuit breaker needs manual closing, the closing efficiency is relatively slow, the automation level is low, the safety problem of electricity utilization is easy to occur, and the loss of a rear-end load electric appliance is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circuit breaker rapid closing device, simple structure, convenient to use can store the required mechanical energy of circuit breaker rapid closing with the elastic potential energy mode, works as when the circuit breaker needs rapid closing switch-on, controlled electromagnetic force percussion elastic potential energy release, the elastic potential energy converts the required mechanical energy of circuit breaker switching-on into fast, realizes the circuit breaker switch-on that closes a floodgate rapidly.

In order to achieve the above object, the utility model provides a following scheme:

a circuit breaker rapid switching-on device comprises a circuit breaker and a rapid switching-on device arranged on one side of the circuit breaker, wherein the rapid switching-on device comprises a switching-on energy storage mechanism and a switching-on control mechanism, the switching-on energy storage mechanism comprises a circuit breaker switching-on driving shaft, a crank link mechanism and a switching-on energy storage spring, one end of the circuit breaker switching-on driving shaft is connected with a handle of the circuit breaker, the other end of the circuit breaker switching-on driving shaft is connected with the crank link mechanism, and the crank link mechanism is connected with the; the switching-on control mechanism comprises a controller, an energy storage driving mechanism, an energy storage releasing mechanism and a switching-on pushing crank, wherein the controller is respectively electrically connected with the energy storage driving mechanism and the energy storage releasing mechanism, and the energy storage driving mechanism is connected with the switching-on pushing crank and is used for driving the switching-on pushing crank to compress the switching-on energy storage spring and store elastic potential energy; when the breaker needs to be quickly switched on, the energy storage and release mechanism acts on the switching-on pushing crank and is used for releasing the switching-on energy storage spring, and elastic potential energy is converted into mechanical energy for pushing the breaker handle through the crank-link mechanism.

Optionally, the crank-link mechanism includes a link and a closing driving shaft handle, one end of the closing driving shaft of the circuit breaker is a non-circular cross-section shaft, one end of the non-circular cross-section shaft is inserted into a corresponding non-circular cross-section hole of the circuit breaker handle, the other end of the closing driving shaft of the circuit breaker is a disc, the middle of the disc is a raised circular shaft, the circular shaft and one end of the closing driving shaft handle form a shaft hole connection, a raised circular arc stop block is arranged on the outer side of the circumference of the disc and used for blocking the closing driving shaft handle, so that the driving shaft handle drives the driving shaft and the circuit breaker handle to rotate together, and closing of the circuit breaker is achieved; the other end of the closing driving shaft handle is connected with the connecting rod, and the connecting rod is connected with the closing energy storage spring.

Optionally, the closing energy storage spring is a pressure spring, the pressure spring is arranged in the chute, one end of the pressure spring is fixedly connected with one end of the chute, the other end of the pressure spring is connected with a sliding block, and the sliding block is connected with the connecting rod.

It is optional, energy storage actuating mechanism includes motor reducer, crank drive gear and pin, motor reducer is the worm gear structure, motor reducer with crank drive gear drive connection, combined floodgate promotes the crank cover to establish in crank drive gear's the pivot, the last symmetry of crank drive gear is provided with first annular and second annular, be provided with the cotter hole on the combined floodgate promotes the crank, the pin is worn to establish in proper order cotter hole and first annular or second annular, combined floodgate promotes the crank and keeps away from crank drive gear's one end is used for promoting the slider.

Optionally, a high platform higher than the depth of the sliding groove is arranged on the sliding block, and the high platform is in contact with the closing pushing crank.

Optionally, the energy storage release mechanism is a pin plugging electromagnetic device, and after the pin plugging electromagnetic device is powered on, the pin is pulled out along a pin hole through the attraction force of a magnetic electromagnet, so that the crank is pushed to be separated from the crank driving gear by closing.

Optionally, the energy storage and release mechanism further comprises an electromagnet return spring, and after the pin plugging electromagnetic device is powered off, the pin plugging electromagnetic device pushes the pin to be re-inserted into the crank driving gear and to be switched on to push the crank downwards under the action of the electromagnet return spring.

Optionally, the closing energy storage spring is a torsion spring, the energy storage driving mechanism includes a motor reducer, an incomplete gear and a crank driving gear, the motor reducer is in driving connection with the incomplete gear, the circumferential surface of the incomplete gear includes an optical axis surface and a plurality of gear teeth, the incomplete gear is in meshing connection with the crank driving gear through the plurality of gear teeth, the closing pushing crank and the crank driving gear are in an integral structure, the torsion spring is embedded in the closing pushing crank, and the closing pushing crank is connected with the connecting rod; the energy storage driving mechanism further comprises a torsion spring locking hook lever, and the torsion spring locking hook lever is used for abutting against a torsion arm of the torsion spring.

Optionally, the energy storage release mechanism includes latch hook lever electromagnetic drive mechanism and electro-magnet reset spring, latch hook lever electromagnetic drive mechanism's bottom with the one end of torsional spring latch hook lever is articulated, the other end of torsional spring latch hook lever is used for supporting the torsion arm of torsional spring, electro-magnet reset spring's one end and torsional spring latch hook lever fixed connection, other end fixed connection be in on the electromagnetic drive mechanism.

According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect: the utility model provides a circuit breaker rapid switching-on device, simple structure, the storage structure of closing energy is carried out with the help of closing energy storage spring, through the compression of energy storage actuating mechanism, stores the mechanical energy that circuit breaker closing required in the form of spring elastic potential energy; when the breaker needs to be quickly switched on to switch on a power supply, the energy storage and release mechanism releases the compressed switch-on energy storage spring, the elastic potential energy of the spring is converted into mechanical energy needed by the switch-on of the breaker, and a breaker handle is pulled to realize the quick switch-on switching-on of the breaker; in dual power supply system, when first power supply system normally supplies power to the power consumption load, the utility model discloses a quick closing device has sufficient time to use micro motor and big proportion speed reducer to extremely low power and extremely low cost are the sufficient combined floodgate mechanical potential energy of second power supply system's circuit breaker deposit, and when two sets of power supply system need switch over, another set of power can put through fast, realizes uninterrupted power supply with extremely low power and extremely low cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of an installation structure of the circuit breaker rapid closing device on a dual power supply system;

fig. 2 is a schematic structural diagram of a circuit breaker rapid closing device according to an embodiment of the present invention;

fig. 3 is an exploded view of a circuit breaker rapid closing device according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure diagram of a circuit breaker rapid closing device according to an embodiment of the present invention;

fig. 5 is a schematic view of a cross-sectional structure of a second circuit breaker rapid closing device according to an embodiment of the present invention;

fig. 6 is a schematic view of the working principle of the second circuit breaker rapid closing device according to the embodiment of the present invention;

fig. 7 is an exploded view of a second circuit breaker rapid closing device according to an embodiment of the present invention;

reference numerals: 1. a circuit breaker; 1A, a left circuit breaker; 1B, a right circuit breaker; 2. a circuit breaker handle; 3. A circuit breaker closing drive shaft; 3A, a non-circular section driving shaft; 3B, an arc stop block; 4. a closing drive shaft handle; 5. a connecting rod; 6. a slider; 7. a chute; 8. closing an energy storage spring; 9. closing a switch to push a crank; 9A, pin holes; 10. a crank drive gear; 10A, a first ring groove; 10B, a second ring groove; 11. a pin; 12. the pin is used for plugging and unplugging the electromagnetic device; 13. a motor reducer; 14. a controller; 15. a latch hook lever electromagnetic drive mechanism; 16. an electromagnet return spring; 17. a torsion spring latch hook lever; 18. an incomplete gear; 19. a mechanical interlock; 20. a left rapid switching-on device; 21. right quick closing device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a circuit breaker rapid closing device, simple structure, convenient to use can store the required mechanical energy of circuit breaker rapid closing with the elastic potential energy mode, works as when the circuit breaker needs rapid closing switch-on, controlled electromagnetic force percussion elastic potential energy release, the elastic potential energy converts the required mechanical energy of circuit breaker switching-on into fast, realizes the circuit breaker switch-on that closes a floodgate rapidly.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the utility model provides a circuit breaker rapid closing device, including circuit breaker 1 and the rapid closing device arranged on one side of circuit breaker 1, applied in a dual power supply system, including a left circuit breaker 1A and a right circuit breaker 1B, the left circuit breaker 1A and the right circuit breaker 1B realize interlocking through a mechanical interlocking device 19; the left side of the left circuit breaker 1A is connected with the left quick closing device 20, and the right side of the right circuit breaker is connected with the right quick closing device 21.

As shown in fig. 2-7, the rapid switching-on device includes a switching-on energy storage mechanism and a switching-on control mechanism, the switching-on energy storage mechanism includes a circuit breaker switching-on driving shaft 3, a crank link mechanism and a switching-on energy storage spring 8, one end of the circuit breaker switching-on driving shaft 3 is connected to the circuit breaker handle 2, the other end is connected to the crank link mechanism, and the crank link mechanism is connected to the switching-on energy storage spring 8; the switching-on control mechanism comprises a controller 14, an energy storage driving mechanism, an energy storage releasing mechanism and a switching-on pushing crank 9, wherein the controller 14 is electrically connected with the energy storage driving mechanism and the energy storage releasing mechanism respectively, and the energy storage driving mechanism is connected with the switching-on pushing crank 9 and is used for driving the switching-on pushing crank 9 to compress the switching-on energy storage spring 8 and store elastic potential energy; when the breaker needs to be quickly switched on, the energy storage and release mechanism acts on the switching-on pushing crank 9 and is used for releasing the switching-on energy storage spring 8, and elastic potential energy is converted into mechanical energy for pushing the breaker handle 2 through the crank-link mechanism.

The crank-link mechanism comprises a connecting rod 5 and a closing driving shaft handle 4, one end of a closing driving shaft 3 of the circuit breaker is provided with a non-circular section shaft 3A, one end of the non-circular section shaft 3A is inserted into a corresponding non-circular section hole 2A of the circuit breaker handle 2, the other end of the closing driving shaft 3 of the circuit breaker is provided with a disc, the middle part of the disc is provided with a raised circular shaft, the circular shaft and one end of the closing driving shaft handle 4 form a shaft hole connection, and a raised circular arc stop 3B is arranged on the outer side of the circumference of the disc and used for stopping the closing driving shaft handle 4, so that the driving shaft handle 4 drives the driving shaft 3 and the circuit breaker handle 2 to rotate together to realize closing of the circuit breaker; the other end of the closing driving shaft handle 4 is connected with the connecting rod 5, and the connecting rod 5 is connected with the closing energy storage spring 8.

The closing driving shaft 4 may rotate around the axis of the circular shaft, but the rotation is not 360 degrees, and when limited by the arc stopper 3B, the closing driving shaft 4 drives the driving shaft 3 and the breaker handle 2 to rotate together, so that the breaker 1 is closed.

Closing a floodgate energy storage spring 8 can be extension spring, pressure spring or torsional spring, but the different part that the function is the same of other shapes also can use the utility model discloses in.

The utility model also provides a quick combined floodgate method of circuit breaker is applied to foretell quick combined floodgate device of circuit breaker, including following step:

the energy storage driving mechanism compresses a closing energy storage spring, and mechanical energy required by closing of the circuit breaker is stored in a spring elastic potential energy form;

when the breaker needs to be quickly switched on to switch on a power supply, the compressed switching-on energy storage spring is released through the energy storage release mechanism, the elastic potential energy of the spring is converted into mechanical energy required by switching on of the breaker, and a handle of the breaker is pulled to enable a circuit to be quickly switched on.

The specific scheme of the first embodiment is as follows:

as shown in fig. 2 to 4, the closing energy storage spring 8 is a compression spring, the compression spring is disposed in the chute 7, one end of the compression spring is fixedly connected to one end of the chute 7, the other end of the compression spring is connected to a slider 6, and the slider 6 is connected to the connecting rod 5. The slide block 6 slides linearly along the slide groove 7, the end of one end of the slide groove 7 touches one end of the slide block 6 to form a moving limit of the slide block 6, and the moving limit corresponds to the closing limit position of the circuit breaker 1 through a crank-link mechanism consisting of the slide block 6, a connecting rod 5 and a closing driving shaft handle 4; the other end of the sliding block 6 is in contact with the closing energy storage spring 8 which is also placed in the sliding chute 7, and when the elastic potential energy of the closing energy storage spring 8 is released, the elastic force forces the crank-link mechanism to complete the rapid closing action of the circuit breaker 1;

energy storage actuating mechanism includes motor reducer 13, crank drive gear 10 and pin 11, motor reducer 13 is the worm gear structure, motor reducer 13 with crank drive gear 10 drive connection, 9 covers of combined floodgate promotion crank are established in crank drive gear 10's the pivot, the symmetry is provided with first annular 10A and second annular 10B on crank drive gear 10, be provided with cotter hole 9A on the combined floodgate promotion crank 9, pin 11 wears to establish in proper order cotter hole 9A and first annular 10A or second annular 10B, combined floodgate promotion crank 9 keeps away from crank drive gear 10's one end is used for promoting slider 6.

The slider is provided with a high platform 6A higher than the groove depth of the sliding groove 7, and the high platform 6A is contacted with the closing pushing crank 9.

The energy storage release mechanism is a pin plugging electromagnetic device 12, and after the pin plugging electromagnetic device 12 is electrified, the pin 11 is pulled out along a pin hole 9A through the suction force of a magnetic electromagnet, so that the crank 9 and the crank driving gear 10 are separated by switching on.

The energy storage release mechanism further comprises an electromagnet return spring 16, and after the pin plugging electromagnetic device 12 is powered off, the pin plugging electromagnetic device 12 pushes the pin 11 downwards to be inserted into the crank driving gear 10 again and pushes the crank 9 to be switched on again under the action of the electromagnet return spring 16.

In the first embodiment, the storage process of the mechanical energy required for closing the circuit breaker 1 is as follows: the torque of the motor reducer 13 is transmitted to the crank drive gear 10 and the closing pushing crank 9, the closing pushing crank 9 rotates clockwise, and pushes the sliding block 6 to compress the closing energy storage spring 8 along the sliding groove 7, so that the closing energy storage spring has enough elastic potential energy required by the next closing of the circuit breaker 1; because the motor reducer 13 is of a worm gear and worm structure, torque conduction can only be transmitted in a one-way mode from the motor to the compression energy storage direction of the closing energy storage spring 8, and after the motor stops supplying power, the elastic torque generated by the closing energy storage spring 8 is locked at the meshing position of the worm and the worm gear, so that mechanical elastic potential energy is stored; the whole energy storage process is carried out in a closing self-locking state of the circuit breaker 1, the sliding block 6 compresses the closing energy storage spring 8, meanwhile, the connecting rod 5 connected with the sliding block 6 pushes the shaft handle 4 to rotate anticlockwise and is separated from the arc stop 3B of the driving shaft 3 in a static state, and the separation angle is larger than the rotation angle of the circuit breaker handle 2 or the arc stop 3B when the circuit breaker 1 is in a tripping state; only when the circuit breaker 1 is in a brake-off state, the arc stop 3B on the closing driving shaft 3 is closest to the closing driving shaft handle 4.

When the circuit breaker 1 needs to be switched on, the switching-on energy storage spring 8 is in a compression energy storage and waiting firing state, the waiting firing state is to wait for the controller 14 to send an instruction, the instruction is that an electromagnetic coil of the pin plugging electromagnetic device 12 is electrified to generate electromagnetic force to attract an electromagnet, attraction force of the electromagnet pulls out the pin 11 along a pin hole 9A, so that the switching-on pushing crank 9 is separated from the crank driving gear 10, the sliding block 6 loses the blockage of the switching-on pushing crank 9, and under the action of spring force, the connecting rod 5 and the driving shaft handle 4 are quickly pulled to complete the switching-on action of the circuit breaker 1; the pin plugging electromagnetic device 12 pushes the pin 11 downwards to be inserted into the other annular groove 10B of the crank driving gear 10 again under the action of the electromagnet return spring 16, and when the motor reducer 13 is started again, the gear 10 and the closing push crank 9 in pin connection with the gear are driven to enter the next spring compression process.

The specific scheme of the second embodiment is as follows:

as shown in fig. 5-7, the closing energy storage spring 8 is a torsion spring, the energy storage driving mechanism includes a motor reducer 13, an incomplete gear 18 and a crank driving gear 10, the motor reducer 13 is in driving connection with the incomplete gear 18, a circumferential surface of the incomplete gear 18 includes an optical axis surface and a plurality of gear teeth, the incomplete gear 18 is in meshing connection with the crank driving gear 10 through the plurality of gear teeth, the closing pushing crank 9 and the crank driving gear 10 are of an integral structure, the torsion spring is embedded in the closing pushing crank 9, and the closing pushing crank 9 is connected with the connecting rod 5; the energy storage driving mechanism further comprises a torsion spring locking hook lever 17, and the torsion spring locking hook lever 17 is used for abutting against a torsion arm of the torsion spring.

Energy storage release mechanism includes latch hook lever electromagnetic drive mechanism 15 and electro-magnet reset spring 16, latch hook lever electromagnetic drive mechanism 15 the bottom with the one end of torsional spring latch hook lever 17 is articulated, the other end of torsional spring latch hook lever 17 is used for supporting the torsion arm of torsional spring, electro-magnet reset spring 16's one end and torsional spring latch hook lever 17 fixed connection, other end fixed connection be in on the electromagnetic drive mechanism 15.

Working principle of the second embodiment: on the 360-degree circumference of the incomplete gear 18, gear teeth are arranged only in the corresponding rotation angle range for rotating the crank drive gear 10 and further twisting the closing energy storage spring 8, and the rest circumference surface is only a smooth axial surface with the same diameter as a tooth root circle; the function of the torsion spring latch hook lever 17 is to limit the restoring force of the twisted closing energy storage spring 8 and to maintain and lock the stored mechanical energy, and the embodiment is realized by the unidirectional torque transmission characteristic of a worm gear, so that a gear rollback locking mechanism is not required to be arranged.

When the second embodiment receives a closing instruction of the controller 14, the latch hook lever electromagnetic driving mechanism 15 pulls the torsion spring latch hook lever 17, and because the incomplete gear 18 is already located at the toothless optical axis position at this time, the four-link closing mechanism of the circuit breaker, which is composed of the crank driving gear 10, the closing driving crank 9, the connecting rod 5, the closing driving shaft handle 4 of the circuit breaker, the closing driving shaft 3 of the circuit breaker and the arc stopper 3A, rapidly moves to complete the closing action under the torque force driving of the closing energy storage spring 8. When energy is stored again next time, the controller 14 transmits an energy storage instruction to the motor reducer 13, the motor reducer 13 drives the incomplete gear 18 to rotate, when the optical axial plane angle rotation of the gear 18 is finished, the toothed part starts to be meshed with the crank driving gear 10, on one hand, the closing energy storage spring 8 arranged in the closing pushing crank 9 is twisted to store energy for the next closing; and on the other hand, the four-bar mechanism is driven to be separated from the contact with the breaker closing driving shaft 3, so that the return angle space of the breaker handle mechanism when the breaker is disconnected is made, and preparation is made for next closing.

No matter embodiment one or embodiment two, the quick closing device is the same in dual power technology application, fig. 1 is the utility model discloses a dual power quick switching device: in the figure, when the main power supply source suddenly fails, the electromagnetic pin pulling device 12 or the latch hook lever electromagnetic driving mechanism 15 in the right quick closing device 21 of the backup power supply circuit breaker 1B is connected to the command of the controller 14, so as to quickly release the elastic potential energy required by the quick closing mechanism of the circuit breaker 1B, and realize the quick closing of the backup power supply circuit breaker 1B. Meanwhile, the main circuit breaker 1A is triggered to trip and brake off through a cross tripping mechanism in the mechanical interlocking device 19; at this time, the left quick closing device 20 of the main power supply breaker 1A completes the energy storage action as soon as the main power supply normally supplies power, and makes room for the switch-off retraction space of the handle of the main power supply breaker 1A. Similarly, when the main power supply resumes, the left quick closing device 20 will also quickly start the main power supply breaker 1A to close and the backup power supply breaker 1B to drop. Although this switching is in milliseconds, the mechanical interlock 19 ensures in a mechanical logic way that another circuit breaker is first triggered to trip before closing.

No matter the main supply circuit breaker 1A or the backup supply circuit breaker 1B, when the lower port circuit needs to be maintained, the two sets of circuit breakers can be in the trip-off position, and the two circuit breakers are locked by the mechanical interlocking device 19, so as to ensure that the two sets of power supplies cannot supply power to the lower port circuit, and the specific implementation manner is described in patent document CN105895462B — a dual power supply change-over switch with mechanical trip interlocking function.

The utility model provides a circuit breaker rapid switching-on device, simple structure, the storage structure of closing energy is carried out with the help of closing energy storage spring, through the compression of energy storage actuating mechanism, stores the mechanical energy that circuit breaker closing required in the form of spring elastic potential energy; when the breaker needs to be quickly switched on to switch on a power supply, the energy storage and release mechanism releases the compressed switch-on energy storage spring, the elastic potential energy of the spring is converted into mechanical energy needed by the switch-on of the breaker, and a breaker handle is pulled to realize the quick switch-on switching-on of the breaker; in dual power supply system, when first power supply system normally supplies power to the power consumption load, the utility model discloses a quick closing device has sufficient time to use micro motor and big proportion speed reducer to extremely low power and extremely low cost are the sufficient combined floodgate mechanical potential energy of second power supply system's circuit breaker deposit, and when two sets of power supply system need switch over, another set of power can put through fast, realizes uninterrupted power supply with extremely low power and extremely low cost.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (9)

1. A circuit breaker rapid switching-on device comprises a circuit breaker and a rapid switching-on device arranged on one side of the circuit breaker, and is characterized in that the rapid switching-on device comprises a switching-on energy storage mechanism and a switching-on control mechanism, the switching-on energy storage mechanism comprises a circuit breaker switching-on driving shaft (3), a crank link mechanism and a switching-on energy storage spring (8), one end of the circuit breaker switching-on driving shaft (3) is connected with a circuit breaker handle (2), the other end of the circuit breaker switching-on driving shaft is connected with the crank link mechanism, and the crank link mechanism is connected with the switching-on energy storage; the switching-on control mechanism comprises a controller (14), an energy storage driving mechanism, an energy storage releasing mechanism and a switching-on pushing crank (9), wherein the controller (14) is respectively electrically connected with the energy storage driving mechanism and the energy storage releasing mechanism, and the energy storage driving mechanism is connected with the switching-on pushing crank (9) and is used for driving the switching-on pushing crank (9) to compress the switching-on energy storage spring (8) and store elastic potential energy; when the breaker needs to be quickly switched on, the energy storage and release mechanism acts on the switching-on pushing crank (9) and is used for releasing the switching-on energy storage spring (8), and elastic potential energy is converted into mechanical energy for pushing the breaker handle (2) through the crank-link mechanism.

2. The circuit breaker rapid closing device according to claim 1, wherein the crank-link mechanism comprises a link (5) and a closing driving shaft handle (4), one end of the circuit breaker closing driving shaft (3) is a non-circular cross-section shaft (3A), one end of the non-circular cross-section shaft (3A) is inserted into a corresponding non-circular cross-section hole (2A) of the circuit breaker handle (2), the other end of the circuit breaker closing driving shaft (3) is a disc, the middle part of the disc is a convex circular shaft, the circular shaft and one end of the closing driving shaft handle (4) form a shaft hole connection, a convex circular arc stopper (3B) is arranged on the outer side of the circumference of the disc and used for stopping the closing driving shaft handle (4) so that the driving shaft (3) and the circuit breaker handle (2) are driven by the driving shaft handle (4) to rotate together, realizing the closing of the circuit breaker; the other end of the closing driving shaft handle (4) is connected with the connecting rod (5), and the connecting rod (5) is connected with the closing energy storage spring (8).

3. The circuit breaker rapid closing device according to claim 2, wherein the closing energy storage spring (8) is a compression spring, the compression spring is arranged in the sliding groove (7), one end of the compression spring is fixedly connected with one end of the sliding groove (7), the other end of the compression spring is connected with a sliding block (6), and the sliding block (6) is connected with the connecting rod (5).

4. The circuit breaker rapid closing device according to claim 3, wherein the energy storage driving mechanism comprises a motor reducer (13), a crank driving gear (10) and a pin (11), the motor speed reducer (13) is of a worm gear structure, the motor speed reducer (13) is in driving connection with the crank driving gear (10), the closing pushing crank (9) is sleeved on the rotating shaft of the crank driving gear (10), a first ring groove (10A) and a second ring groove (10B) are symmetrically arranged on the crank driving gear (10), the closing pushing crank (9) is provided with a pin hole (9A), the pin (11) sequentially penetrates through the pin hole (9A) and the first annular groove (10A) or the second annular groove (10B), and one end of the closing pushing crank (9) far away from the crank driving gear (10) is used for pushing the sliding block (6).

5. The circuit breaker rapid closing device according to claim 4, wherein a high platform (6A) higher than the groove depth of the chute (7) is arranged on the sliding block, and the high platform (6A) is in contact with the closing pushing crank (9).

6. The circuit breaker rapid closing device according to claim 4, wherein the energy storage releasing mechanism is a pin plugging electromagnetic device (12), and after the pin plugging electromagnetic device (12) is powered on, the pin (11) is pulled out along a pin hole (9A) through the attraction force of a magnetic electromagnet, so that the crank (9) and the crank driving gear (10) are separated from each other by the closing pushing.

7. The circuit breaker rapid closing device according to claim 6, wherein the energy storage and release mechanism further comprises an electromagnet return spring (16), and after the pin plugging electromagnetic device (12) is powered off, the pin plugging electromagnetic device (12) pushes the pin (11) downwards to be reinserted into the crank driving gear (10) and the closing pushing crank (9) again under the action of the electromagnet return spring (16).

8. The circuit breaker rapid closing device according to claim 2, wherein the closing energy storage spring (8) is a torsion spring, the energy storage driving mechanism comprises a motor reducer (13), an incomplete gear (18) and a crank driving gear (10), the motor reducer (13) is in driving connection with the incomplete gear (18), the circumferential surface of the incomplete gear (18) comprises an optical axis surface and a plurality of gear teeth, the incomplete gear (18) is in meshing connection with the crank driving gear (10) through the plurality of gear teeth, the closing pushing crank (9) and the crank driving gear (10) are of an integrated structure, the torsion spring is embedded in the closing pushing crank (9), and the closing pushing crank (9) is connected with the connecting rod (5); the energy storage driving mechanism further comprises a torsion spring locking hook lever (17), and the torsion spring locking hook lever (17) is used for abutting against a torsion arm of the torsion spring.

9. The circuit breaker rapid closing device according to claim 8, wherein the energy storage and release mechanism comprises a latch hook lever electromagnetic driving mechanism (15) and an electromagnet return spring (16), the bottom end of the latch hook lever electromagnetic driving mechanism (15) is hinged to one end of the torsion spring latch hook lever (17), the other end of the torsion spring latch hook lever (17) is used for supporting the torsion arm of the torsion spring, one end of the electromagnet return spring (16) is fixedly connected with the torsion spring latch hook lever (17), and the other end of the electromagnet return spring is fixedly connected to the electromagnetic driving mechanism (15).

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