CN214624784U - Operating mechanism and circuit breaker for quickly cutting off circuit - Google Patents
Operating mechanism and circuit breaker for quickly cutting off circuit Download PDFInfo
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- CN214624784U CN214624784U CN202023340199.2U CN202023340199U CN214624784U CN 214624784 U CN214624784 U CN 214624784U CN 202023340199 U CN202023340199 U CN 202023340199U CN 214624784 U CN214624784 U CN 214624784U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 239000003921 oil Substances 0.000 claims abstract description 45
- 238000004146 energy storage Methods 0.000 claims abstract description 32
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an operating mechanism of quick cut-off circuit, include: the working cylinder is internally provided with an oil way and a main working shaft; the oil tank is arranged above the working cylinder and used for providing hydraulic oil; the pressurizing assembly is arranged at the rear side of the working cylinder; the energy storage disc spring group is assembled on at least one side of the left side and the right side of the working cylinder, and the motion direction of an energy storage piston of the energy storage disc spring group is vertical to the motion direction of the main working shaft; the control assembly is arranged on the front side of the working cylinder and comprises a reversing valve, an electromagnetic driving module and a control module; the reversing valve comprises a valve core and is communicated with the working cylinder through an oil duct; the electromagnetic driving module comprises an electromagnetic repulsion disc and a first coil, the electromagnetic repulsion disc is connected with the valve core, and the first coil is positioned on one side of the electromagnetic repulsion disc; the control module controls the on-off of power supply to the first coil so as to drive the electromagnetic repulsion plate to move. The operating mechanism and the circuit breaker of the quick circuit breaking can achieve the effect of circuit breaking more quickly and reliably, and the safety of the high-voltage circuit breaker is enhanced.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to an operating mechanism and circuit breaker of quick circuit breaker.
Background
The traditional high-voltage circuit breaker is electric with contacts, the purpose of opening and closing is achieved through opening and closing actions of the contacts, the opening and closing actions of the contacts can be completed only by depending on a certain mechanical operation system, and a mechanical operation device outside a circuit breaker body is called as an operation mechanism.
The ultrahigh voltage breaker port technology generally adopts a single-break technology or a double-break technology, and the two technologies have lower voltage and required opening speed, so that a matched operating mechanism does not need to have high power. However, if a circuit breaker with more fractures is adopted, the voltage in the circuit breaker will be multiplied, the distance between the fractures and the breaking speed also need to be increased, the power, the action speed and the stability of the matched operating mechanism also need to be correspondingly increased, and the control module is a core component of the operating mechanism and determines the action of the operating mechanism. At present, most control modules for hydraulic operating mechanisms generally adopt secondary control, a primary valve drives a secondary valve to convert and reverse, wherein the primary valve is driven by mechanical transmission, and the secondary valve is a hydraulic valve, so that the operation process is equivalent to the process of driving the hydraulic transmission by the mechanical transmission. Therefore, the two-stage switching control method has some defects in operation sensitivity and reliability, and is difficult to satisfy the effect of the ultrahigh voltage circuit breaker on quickly and safely breaking the circuit.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a quick circuit breaker's operating mechanism and circuit breaker, it can reach the effect of circuit breaker fast reliably more, strengthens high voltage circuit breaker's security.
The purpose of the utility model is realized by adopting the following technical scheme:
an operating mechanism for a quick disconnect circuit, comprising:
the working cylinder is internally provided with an oil duct and a main working shaft, and the main working shaft is positioned in the oil duct;
the oil tank is arranged above the working cylinder and used for providing hydraulic oil;
the pressurizing assembly is arranged on the rear side of the working cylinder and used for filling hydraulic oil in the oil tank into the oil duct;
the energy storage disc spring group is assembled on at least one of the left side and the right side of the working cylinder, an energy storage piston of the energy storage disc spring group is positioned in the oil duct, and the movement direction of the energy storage piston is vertical to the movement direction of the main working shaft;
the disc spring monitoring module is arranged on the front side of the working cylinder and used for monitoring the energy storage disc spring group;
the control assembly is arranged on the front side of the working cylinder and comprises a reversing valve, an electromagnetic driving module and a control module; the reversing valve is communicated with the working cylinder through the oil duct and comprises a valve core; the electromagnetic driving module comprises an electromagnetic repulsion disc and a first coil, the electromagnetic repulsion disc is connected with the valve core, and the first coil is positioned on one side of the electromagnetic repulsion disc; the control module can control the power supply on-off of the first coil, and when the first coil is electrified, the electromagnetic repulsion disc can be driven to move.
Further, the control assembly further comprises a second coil, the second coil is arranged opposite to the first coil, and a space for the electromagnetic repulsion disc to move is defined between the second coil and the first coil; the second coil is positioned on one side of the electromagnetic repulsion disc, which is back to the reversing valve, and the first coil is positioned on one side of the electromagnetic repulsion disc, which is towards the reversing valve; the control module can also control the power supply on-off of the second coil, and when the first coil is powered on and the second coil is powered off, the electromagnetic repulsion disc moves towards the first coil; when the second coil is energized and one coil is de-energized, the electromagnetic repulsion disk moves toward the second coil.
Furthermore, the electromagnetic repulsion disc comprises a disc body and a middle shaft, and the middle shaft is perpendicular to the middle part of the disc body and extends out in the direction far away from the reversing valve; the control assembly further comprises a clamping module arranged on one side, back to the reversing valve, of the electromagnetic driving module, the clamping module comprises a clamping piece and an elastic pressing portion, one end of the clamping piece is hinged to the middle shaft, the other end of the clamping piece is hinged to the elastic pressing portion, and the elastic pressing portion provides elastic pressure for the clamping piece.
Furthermore, at least two clamping modules are arranged, and all the clamping modules are uniformly distributed around the middle shaft in the circumferential direction of the middle shaft.
Furthermore, the electromagnetic repulsion disc also comprises a connecting part which is coaxial with the valve core and the middle shaft, the connecting part extends out from the disc body to one side close to the reversing valve, and the connecting part is connected with the valve core.
Furthermore, the reversing valve further comprises a valve seat, a valve sleeve and an end cover, the valve sleeve is arranged in the valve seat, the valve core is arranged in the valve sleeve, and the end cover is arranged at one end, far away from the electromagnetic driving module, of the valve seat.
Furthermore, a sealing sleeve and a buffer sleeve are further sleeved outside the main working shaft below the energy storage piston, and the lower surface of the sealing sleeve can be attached to or separated from the upper surface of the buffer sleeve.
Furthermore, the lower surface of the sealing sleeve is provided with an upper step surface along the inner periphery and/or the outer periphery of the sealing sleeve, and when the lower surface of the sealing sleeve is attached to the upper surface of the buffer sleeve, a boosting space is formed between the upper step surface and the upper surface of the buffer sleeve.
Furthermore, the upper surface of the buffer sleeve is provided with a lower step surface along the inner periphery and/or the outer periphery of the buffer sleeve, and when the lower surface of the seal sleeve is contacted with the upper surface of the buffer sleeve in a sticking manner, the boosting space is formed between the lower step surface and the lower surface or the upper step surface of the seal sleeve.
The circuit breaker comprises the operating mechanism for quickly breaking the circuit.
The operating mechanism of circuit breaker has some defects among the prior art, the utility model discloses improve to these defects. The working cylinder is a main body of the operating mechanism, the pressurizing assembly, the oil tank, the energy storage disc spring group and the control assembly are arranged around the working cylinder, and when the pressurizing assembly is filled with high-pressure oil, the energy storage piston can extend out under the pressure of the high-pressure oil.
Especially the utility model provides a control assembly for the switching-over is agile more stable. When the first coil is electrified, an alternating magnetic field is generated around the first coil, reverse induced eddy current is generated on the electromagnetic repulsion plate, the magnetic field generated by the eddy current and the magnetic field generated by the current of the first coil interact to generate electromagnetic force, the electromagnetic force enables the electromagnetic repulsion plate to move close to or far away from the first coil, and a valve core connected with the electromagnetic repulsion plate moves along with the electromagnetic repulsion plate, so that the reversing of the reversing valve is realized. It is from top to bottom visible, the utility model provides an electromagnetic repulsion dish among the control assembly can direct action on the case, and the control of case is direct more rapid, and the action is more sensitive, has avoided adopting the problem that the error probably appears in the in-process that the primary valve drove the secondary valve switching-over among the prior art, has left out changeover time moreover, and the action of opening circuit is faster, is applicable to very much in the circuit breaker that needs high action speed and stability.
Drawings
Fig. 1 is a schematic front view of an operating mechanism for a quick disconnect circuit according to the present invention;
fig. 2 is a schematic top view of an operating mechanism for rapidly cutting off a circuit according to the present invention;
fig. 3 is a schematic cross-sectional view of a control assembly in an operating mechanism for a quick disconnect circuit according to the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 1;
fig. 5 is an enlarged view at a1 in fig. 4.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 to 5 show the utility model discloses a quick operating mechanism who cuts off circuit, including working cylinder 1, pressurizing assembly, oil tank 3, energy storage dish spring group 4, dish spring monitoring module 5 and control assembly 6: an oil channel and a main working shaft 11 are arranged in the working cylinder 1, the main working shaft 11 is positioned in the oil channel, the working cylinder 1 is a main body of the operating mechanism, and other structures are arranged around the working cylinder 1 to form a compact structure; the oil tank 3 is arranged above the working cylinder 1 and used for providing hydraulic oil; the pressurizing assembly is arranged at the rear side of the working cylinder 1 and is used for filling hydraulic oil in the oil tank 3 into the oil duct, and when the pressurizing assembly is filled with high-pressure oil, the energy storage piston 41 can extend out under the pressure of the high-pressure oil; the energy storage disc spring group 4 is assembled on the left side and the right side of the working cylinder 1, an energy storage piston 41 of the energy storage disc spring group is located in the oil passage, and the movement direction of the energy storage piston 41 is perpendicular to the movement direction of the main working shaft 11.
As shown in fig. 3, a control assembly 6 is arranged at the front side of the working cylinder 1, and the control assembly 6 comprises a reversing valve 61, an electromagnetic driving module 62 and a control module; the reversing valve 61 is communicated with the working cylinder 1 through an oil passage and comprises a valve core 611; the electromagnetic driving module 62 includes an electromagnetic repulsion disk 621 and a first coil 622, the electromagnetic repulsion disk 621 is connected to the valve core 611, and the first coil 622 is located on one side of the electromagnetic repulsion disk; the control module controls on/off of power supply to the first coil 622, the control module may be a PLC controller, the controller controls on/off of a power supply, and thus on/off of power supply is controlled, and when the first coil 622 is powered on, the electromagnetic repulsion disc 621 can be driven to move.
When the first coil 622 is energized, an alternating magnetic field is generated around the first coil 622, and a reverse induced eddy current is generated on the electromagnetic repulsion disk 621, the magnetic field generated by the eddy current interacts with the magnetic field generated by the current of the first coil 622 to generate an electromagnetic force, the electromagnetic force makes the electromagnetic repulsion disk 621 move close to or away from the first coil 622, and the valve core 611 connected with the electromagnetic repulsion disk 621 moves along with the electromagnetic force, so that the reversing of the reversing valve is realized. It is from top to bottom visible, the utility model provides an electromagnetic repulsion dish 621 can direct action on case 611, and the control of case 611 is more direct rapid, and the action is more sensitive, has avoided adopting the problem that the error probably appears in the in-process that the primary valve drove the secondary valve switching-over among the prior art, has left out changeover time moreover, and the action of opening circuit is faster, is applicable to very much in the circuit breaker that needs high action speed and stability.
As a preferable scheme of the control assembly 6, the control assembly 6 further comprises a second coil 623, and the second coil 623 is arranged opposite to the first coil 622 and defines a space for the electromagnetic repulsion disk to move between; the second coil 623 is located on the side of the electromagnetic repulsion disk 621 opposite to the reversing valve 61, and the first coil 622 is located on the side of the electromagnetic repulsion disk 621 facing the reversing valve 61. When the first coil 622 or the second coil 623 is energized alone, the generated magnetic field interacts with the electromagnetic repulsion disk 621 to generate an acting force, and the acting force acts on the electromagnetic repulsion disk 621; similarly, when the second coil 623 is energized, the electromagnetic repulsion disk 621 approaches in a direction facing the second coil 623, that is, the second coil 623 and the electromagnetic repulsion disk 621 generate an attraction force, so that the electromagnetic repulsion disk 621 moves to the right.
In order to avoid the mutual influence between the first coil 622 and the second coil 623, and to ensure that the space between the first coil 622 and the second coil 623 is enough, the electromagnetic repulsion disk 621 can move a distance such that the movement of the valve core 611 satisfies the commutation; the control device further comprises a stopper 624, the stopper 624 is arranged in the space between the first coil 622 and the second coil 623, and two ends of the stopper 624 respectively abut against the first coil 622 and the second coil 623.
The reversing valve 61 in this embodiment further includes a valve seat 612, a valve housing 613, and an end cap 614, wherein the valve housing 613 is disposed in the valve seat 612, the valve core 611 is disposed in the valve housing 613, and the end cap 614 is disposed at an end of the valve seat 612 far away from the electromagnetic drive module. The electromagnetic repulsion disc 621 drives the lower valve core 611 to move on the valve sleeve 613, so as to realize the quick opening or closing of the circuit breaker operating mechanism. The specific working principle is as follows: when the first coil 622 is energized, the electromagnetic repulsion disc 621 moves leftwards to drive the valve core 611 to move on the valve sleeve 613, so as to rapidly reverse, thereby implementing rapid closing of the operating mechanism; similarly, when the second coil 623 is energized, the electromagnetic repulsion disk 621 moves rightward to drive the valve core 611 to move on the valve sleeve 613, so as to rapidly reverse, thereby implementing rapid opening of the operating mechanism.
In order to ensure that the state after the valve core 611 acts can be maintained, the electromagnetic repulsion disc 621 comprises a disc body 621a and a central axis 621b, and the central axis 621b is perpendicular to the middle part of the disc body 621a and extends in a direction away from the reversing valve; the control assembly 6 further comprises a clamping module 63 arranged on one side of the electromagnetic driving module 62, which faces away from the reversing valve 61, wherein the clamping module 63 comprises a clamping piece 631 and a spring-pressing part, one end of the clamping piece 631 is hinged to the middle shaft 621b, the other end of the clamping piece 631 is hinged to the spring-pressing part, and the spring-pressing part provides spring pressure for the clamping piece 631. After the electromagnetic repulsion disc 621 moves under the action of the first coil 622 or the second coil 623, the clamping piece 631 rotates to the position, under the pressure of the elastic pressing part, the electromagnetic repulsion disc 621 and the valve core 611 can keep the position still until the elastic pressing force is overcome by another attractive force, and the scheme achieves the effect of position keeping through a mechanical structure, so that the valve core 611 can keep the state unchanged after the reversing is completed without continuously supplying electric power. More preferably, at least two clamping modules are arranged, and all the clamping modules are uniformly distributed around the middle shaft in the circumferential direction of the middle shaft, so that the middle shaft of the electromagnetic repulsion disc is more uniformly stressed and is not easy to shift when moving.
Specifically, the pressing portion includes a fixed seat 633, a spring 634, and a movable seat 635, where the movable seat 635 is a fixed component fixed on a side surface of the driving assembly, and a position of the movable seat 635 is unchangeable; one end of the spring 634 abuts against the fixed seat 633, and the other end abuts against the movable seat 635, and the spring can move along with the compression and extension changes of the spring 634, so as to provide different forces to the clamping member 631 hinged on the movable seat 635.
As a preferable scheme for connecting the electromagnetic repulsion disk with the valve core 611, the electromagnetic repulsion disk 621 further includes a connecting portion 621c coaxial with the valve core 611 and the middle shaft 621b, the connecting portion 621c extends out from the disk body 621a to a side close to the direction valve, and the connecting portion 621c is connected with the valve core 611. An external thread is arranged at one end of the valve core 611, an internal thread is arranged on the connecting part 621c of the electromagnetic repulsion disk 621, and the valve core 611 is connected with the internal thread of the connecting part 621c through mutual screwing of the external thread and the internal thread. The connecting portion 621c and the valve core 611 are coaxially arranged, so that the movement between the connecting portion 621c and the valve core 611 is more coordinated and reliable, and the disc body 621a and the connecting portion 621c are coaxially arranged, so that when the disc body 621a is forced to move, the acting force applied to the connecting portion 621c is more consistent, and the movement of the electromagnetic repulsion disc 621 can be more stable and reliable.
As shown in fig. 4 and 5, with the quick control action assorted of control assembly 6, the utility model discloses still be in energy storage piston 41 below main working shaft 11 still overlaps outward and is equipped with seal cover 12 and cushion collar 13, the lower surface of seal cover 12 can be with the upper surface subsides of cushion collar 13 and touch or separate. The sealing sleeve 12 and the buffer sleeve 13 can increase the fit degree between parts and can be used for absorbing impact force during closing. In order to increase the opening speed during the circuit breaking, a boosting space 14 is provided between the sealing sleeve 12 and the buffer sleeve 13, in this embodiment, preferably, the lower surface of the sealing sleeve 12 is provided with upper step surfaces 121 along the inner periphery and the outer periphery thereof, the upper surface of the buffer sleeve 13 is provided with lower step surfaces 131 along the inner periphery and the outer periphery thereof, and the boosting space 14 is located between the upper step surfaces 121 and the lower step surfaces 131. An annular boosting space 14 is formed between the upper step surface 121 and the lower step surface 131, when the brake is opened, high-pressure oil enters the boosting space 14, the high-pressure oil forms upward thrust on the sealing sleeve 12 and downward thrust on the buffer sleeve 13, and the boosting effect is achieved on the separation and disconnection of the sealing sleeve 12 and the buffer sleeve 13, so that the opening speed of the brake is increased by one level. Further preferably, the upper step surface 121 is annular, and occupies one third to one half of the total surface of the lower surface of the sealing sleeve 12, so as to balance the buffering effect and the boosting effect.
The theory of operation of switching-over valve 61 finishes, introduces below the utility model provides a quick disconnect-circuit's operating mechanism realizes closing a floodgate and the whole theory of operation of separating brake:
the pressurizing assembly injects high-pressure oil into the upper part of the main working shaft 11, the top of the energy storage piston, a high-pressure oil passage of the reversing valve 61 of the electromagnetic driving module 62 and a passage cavity of the safety valve. When the pressurizing assembly is filled with oil, the energy storage piston extends out under the pressure of high-pressure oil, the disc springs in the energy storage disc spring groups 4 on two sides are compressed to store energy, and the travel switch of the energy storage disc spring group 4 cuts off an energy storage loop after the energy storage is full.
At this time, the upper portion of the main working shaft 11 is high-pressure oil, the lower portion of the main working shaft is communicated with a Z port (control oil port) of the main directional control valve 61, the Z port is communicated with a P port (high-pressure oil port), the sealing sleeve 12 is contacted with the buffer, and the whole operating mechanism is in a closing state. When the brake needs to be opened, the control component 6 provides high-voltage electricity for the electromagnetic driving module 62, so that the electromagnetic driving module 62 drives the reversing valve 61 to reverse in a very short time, and the conduction of the Z port and the T port (low-pressure oil port) is realized, at the moment, high-pressure oil is arranged above the piston of the main working shaft 11, and low-pressure oil is changed below the piston, so that the main working shaft 11 moves downwards, and the brake opening is realized. After the brake is opened, the auxiliary switch cuts off the brake opening loop, meanwhile, the disc spring monitoring module 5 starts the pressurizing assembly to start pressurizing, the energy storage is full, the operation mechanism is automatically stopped, and the operation mechanism is kept in a brake opening state.
When the operating mechanism is in a switching-off state and needs to be switched on, the control module provides high-voltage electricity for the electromagnetic driving module 62, so that the electromagnetic driving module 62 drives the reversing valve 61 to reverse in a very short time, the conduction of a Z port and a P port is realized, high-pressure oil is introduced below the main working shaft 11, high-pressure oil is filled above and below the main working shaft 11, but because the area of the lower oil pressure is larger, the main working shaft 11 is pushed to move upwards according to a differential pressure principle, the sealing sleeve 12 is separated from the buffer part, and switching-on is realized. After the switch is switched on, the auxiliary switch cuts off a switch-on loop, meanwhile, the disc spring monitoring module 5 starts the pressurizing assembly to start pressurizing, the energy storage is full and then the pressurizing assembly automatically stops, and the operating mechanism is kept in a switch-on state.
Furthermore, the utility model also provides a circuit breaker, it includes quick break circuit's operating mechanism. Except for the operating mechanism for quickly cutting off the circuit, other structures are common in the field and are not described herein.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. An operating mechanism for rapidly cutting off a circuit, comprising:
the working cylinder is internally provided with an oil duct and a main working shaft, and the main working shaft is positioned in the oil duct;
the oil tank is arranged above the working cylinder and used for providing hydraulic oil;
the pressurizing assembly is arranged on the rear side of the working cylinder and used for filling hydraulic oil in the oil tank into the oil duct;
the energy storage disc spring group is assembled on at least one of the left side and the right side of the working cylinder, an energy storage piston of the energy storage disc spring group is positioned in the oil duct, and the movement direction of the energy storage piston is vertical to the movement direction of the main working shaft;
the disc spring monitoring module is arranged on the front side of the working cylinder and used for monitoring the energy storage disc spring group;
the control assembly is arranged on the front side of the working cylinder and comprises a reversing valve, an electromagnetic driving module and a control module; the reversing valve is communicated with the working cylinder through the oil duct and comprises a valve core; the electromagnetic driving module comprises an electromagnetic repulsion disc and a first coil, the electromagnetic repulsion disc is connected with the valve core, and the first coil is positioned on one side of the electromagnetic repulsion disc; the control module can control the power supply on-off of the first coil, and when the first coil is electrified, the electromagnetic repulsion disc can be driven to move.
2. The actuator for quickly interrupting an electrical circuit of claim 1 wherein said control assembly further comprises a second coil disposed opposite said first coil and defining a space therebetween for movement of said repulsive electromagnetic disc; the second coil is positioned on one side of the electromagnetic repulsion disc, which is back to the reversing valve, and the first coil is positioned on one side of the electromagnetic repulsion disc, which is towards the reversing valve; the control module can also control the power supply on-off of the second coil, and when the first coil is powered on and the second coil is powered off, the electromagnetic repulsion disc moves towards the first coil; when the second coil is energized and one coil is de-energized, the electromagnetic repulsion disk moves toward the second coil.
3. The actuator for rapidly interrupting an electrical circuit of claim 2 wherein said repulsive electromagnetic disc comprises a disc body and a central shaft, said central shaft being perpendicular to the central portion of said disc body and extending away from said reversing valve; the control assembly further comprises a clamping module arranged on one side, back to the reversing valve, of the electromagnetic driving module, the clamping module comprises a clamping piece and an elastic pressing portion, one end of the clamping piece is hinged to the middle shaft, the other end of the clamping piece is hinged to the elastic pressing portion, and the elastic pressing portion provides elastic pressure for the clamping piece.
4. The actuator for quickly interrupting an electrical circuit of claim 3 wherein there are at least two of said clamping modules, all of said clamping modules being evenly distributed about said central axis in a circumferential direction of said central axis.
5. The actuator for rapidly interrupting an electrical circuit of claim 3 wherein said repulsive electromagnetic disc further comprises a connecting portion coaxial with said spool and with said central axis, said connecting portion extending from said disc toward a side adjacent to said reversing valve, said connecting portion being connected to said spool.
6. The operating mechanism for rapidly breaking a circuit as claimed in claim 1, wherein the reversing valve further comprises a valve seat, a valve sleeve and an end cap, the valve sleeve is disposed in the valve seat, the valve core is disposed in the valve sleeve, and the end cap is disposed at an end of the valve seat away from the electromagnetic driving module.
7. The operating mechanism for quickly disconnecting the circuit according to any one of claims 1 to 6, wherein a sealing sleeve and a buffer sleeve are further sleeved outside the main working shaft below the energy storage piston, and the lower surface of the sealing sleeve can be attached to or separated from the upper surface of the buffer sleeve.
8. The operating mechanism for rapidly switching off a circuit according to claim 7, wherein the lower surface of the sealing sleeve is provided with an upper step surface along an inner circumference and/or an outer circumference thereof, and when the lower surface of the sealing sleeve is in contact with the upper surface of the cushion collar, a boosting space is formed between the upper step surface and the upper surface of the cushion collar.
9. The actuator for rapidly interrupting a circuit according to claim 8, wherein the upper surface of the buffer sleeve is provided with a lower step surface along an inner circumference and/or an outer circumference thereof, and when the lower surface of the sealing sleeve is in contact with the upper surface of the buffer sleeve, the boost space is formed between the lower step surface and the lower surface or the upper step surface of the sealing sleeve.
10. A circuit breaker including an actuator for rapidly interrupting an electrical circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340199.2U CN214624784U (en) | 2020-12-30 | 2020-12-30 | Operating mechanism and circuit breaker for quickly cutting off circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340199.2U CN214624784U (en) | 2020-12-30 | 2020-12-30 | Operating mechanism and circuit breaker for quickly cutting off circuit |
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| Publication Number | Publication Date |
|---|---|
| CN214624784U true CN214624784U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023340199.2U Active CN214624784U (en) | 2020-12-30 | 2020-12-30 | Operating mechanism and circuit breaker for quickly cutting off circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360975A (en) * | 2022-01-12 | 2022-04-15 | 山东泰开高压开关有限公司 | Quick circuit breaker for low-frequency power transmission system |
-
2020
- 2020-12-30 CN CN202023340199.2U patent/CN214624784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360975A (en) * | 2022-01-12 | 2022-04-15 | 山东泰开高压开关有限公司 | Quick circuit breaker for low-frequency power transmission system |
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