An intelligent quick-break circuit breaker execution system

Abstract

This invention discloses an intelligent fast-acting circuit breaker execution system, belonging to the field of circuit breaker technology. It includes a gas box, on which, from top to bottom, are arranged side extension terminals, a vacuum circuit breaker, a three-position disconnecting switch, a copper rod, and inlet / outlet bushings. A switch frame is housed inside the gas box. The vacuum circuit breaker includes an arc-extinguishing chamber mounted on the switch frame and a drive shaft rotatably mounted on the switch frame. A drive crank arm is mounted on the drive shaft, with arc-shaped grooves on opposite inner surfaces of the drive crank arm. A connecting shaft is housed within the drive crank arm, with drive bearings at both ends of the connecting shaft, positioned within the arc-shaped grooves. A pull rod is fitted onto the outer circumference of the connecting shaft, and the arc-extinguishing chamber is located below the pull rod. A circuit breaker mechanism for driving the rotation of the drive shaft is mounted on the gas box. This application improves the circuit breaker's tripping efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of circuit breakers, and in particular to an intelligent fast-acting circuit breaker actuation system. Background Technology

[0002] In the field of high and medium voltage power transmission and distribution, although traditional circuit breaker switching equipment can provide basic circuit protection, it is insufficient in terms of rapid response and narrowing the scope of faults. Especially in situations with high power demand and strict requirements for power supply reliability, the response time of the entire circuit breaker switch cabinet often becomes a limiting factor.

[0003] A circuit breaker is a switching device that can connect and disconnect normal load current, as well as short-circuit current and overload current. It primarily serves as short-circuit and overload protection in a circuit, while also providing undervoltage protection and remote power disconnection functions.

[0004] In current State Grid or Southern Power Grid medium-voltage power equipment, the response time of the entire circuit breaker switchgear is relatively long, which cannot meet the requirements of relatively critical applications in the industry. The long opening time also fails to effectively narrow the scope of power faults. Furthermore, the response time consists of two main components: the control module and the primary hardware execution system. These components require separate time control, which in turn reduces the circuit breaker's breaking speed. Summary of the Invention

[0005] To address the issue of shortening the disconnection time and thus improving the circuit breaker's disconnection speed, this application provides an intelligent fast-break circuit breaker execution system.

[0006] The intelligent instantaneous circuit breaker execution system provided in this application adopts the following technical solution:

[0007] A smart instantaneous circuit breaker execution system includes a gas box. From top to bottom, the gas box is arranged a side extension terminal, a vacuum circuit breaker, a three-position disconnect switch, a copper rod, and inlet / outlet bushings. A switch frame is housed inside the gas box. The vacuum circuit breaker includes an arc-extinguishing chamber mounted on the switch frame and a drive shaft rotatably mounted on the switch frame. A drive crank arm is mounted on the drive shaft. Arc-shaped grooves are formed on the opposite inner surfaces of the drive crank arm. A connecting shaft is housed within the drive crank arm. Drive bearings are located at both ends of the connecting shaft, within the arc-shaped grooves. A pull rod is fitted onto the outer circumference of the connecting shaft. The arc-extinguishing chamber is located below the pull rod. A circuit breaker mechanism for driving the drive shaft to rotate is mounted on the gas box.

[0008] By adopting the above technical solution, when the vacuum circuit breaker needs to be closed, the circuit breaker mechanism drives the transmission main shaft to rotate, which in turn drives the drive crank arm to rotate. The drive crank arm drives the drive bearing to move downward, which in turn drives the connecting shaft to move downward. The connecting shaft then drives the pull rod to move downward, thus closing the arc-extinguishing chamber. When the vacuum circuit breaker needs to be opened, the circuit breaker mechanism drives the transmission main shaft to rotate in the opposite direction, which in turn drives the drive crank arm to rotate. The drive crank arm then drives the drive bearing to move upward, which in turn drives the pull rod to move upward. This achieves rapid opening of the circuit breaker and improves its breaking efficiency.

[0009] Preferably, the side of the gas box is provided with a mechanism base plate module, a mechanism frame module, and a mechanism front plate module. The mechanism frame module is fixedly connected to the mechanism base plate module and the mechanism front plate module respectively by positioning pins. The circuit breaker mechanism includes a mechanism spindle module rotatably mounted on the side of the mechanism frame module near the mechanism front plate module. The mechanism spindle module is connected to the transmission spindle through a dynamic fit. A swing arm is fixed on the mechanism spindle module. A closing plate is rotatably mounted on the side of the mechanism frame module near the mechanism front plate module. A closing push rod is provided between the closing plate and the swing arm. The two ends of the closing push rod are rotatably connected to the swing arm and the closing plate respectively. A drive mechanism for driving the closing plate to rotate is provided on the mechanism frame module.

[0010] By adopting the above technical solution, the drive mechanism is started, which drives the closing plate to rotate. The closing plate pushes the closing push rod to move, which drives the swing arm to rotate. This causes the swing arm to drive the main shaft module of the mechanism to rotate, and through dynamic cooperation, it drives the transmission main shaft to rotate.

[0011] Preferably, the drive mechanism includes an energy storage shaft passing through the side of the mechanism frame module, an energy storage cam being sleeved and fixed on the energy storage shaft, a closing bearing being rotatably mounted on the closing plate, the outer peripheral surface of the energy storage cam being able to abut against the outer peripheral surface of the closing bearing, an energy storage crank arm being fixed to the end of the energy storage shaft away from the mechanism front plate module, an mounting rod being fixed to the side of the mechanism frame module away from the mechanism front plate module, an energy storage closing spring module being fixed to the bottom end of the mounting rod, the energy storage crank arm being connected to the bottom end of the energy storage closing spring module, and a drive assembly for driving the energy storage shaft to rotate being provided on the mechanism frame module.

[0012] By adopting the above technical solution, the drive assembly is activated, causing the energy storage shaft to rotate. The energy storage shaft drives the energy storage cam to rotate upward. When the drive mechanism drives the energy storage shaft to rotate, the energy storage shaft also drives the energy storage crank arm to rotate, causing the energy storage crank arm to drive the energy storage closing spring module to move downward, so that the energy storage closing spring module is in a stretched state. When the energy storage crank arm rotates and stretches the energy storage closing spring to the farthest point, and just passes the farthest point, the energy storage is in place, and the energy storage closing spring module is in the energy storage state. When closing, the spring force of the energy storage closing spring module is released, and the energy storage crank arm rotates along the original energy storage rotation direction under the elastic force of the energy storage closing spring module, causing the energy storage crank arm to drive the energy storage shaft to rotate. The energy storage shaft drives the energy storage cam to rotate, so that the energy storage cam pushes the closing bearing to move during the rotation, so that the closing bearing drives the closing plate to rotate.

[0013] Preferably, the drive assembly includes an energy storage gear sleeved on the energy storage shaft, the energy storage gear being rotatably connected to the energy storage shaft, an energy storage limiting plate being sleeved and fixed on the energy storage shaft, a slot being provided on the outer circumferential surface of the energy storage limiting plate, a closing energy storage ratchet being rotatably mounted on the side of the energy storage gear, a torsion spring being provided on the side of the energy storage gear, one end of the torsion spring being fixedly connected to the side of the closing energy storage ratchet, and the other end of the torsion spring being connected to the energy storage gear, the end of the closing energy storage ratchet being able to be inserted into the slot when not storing energy, and a power component for driving the rotation of the energy storage gear being provided on the mechanism frame module.

[0014] By adopting the above technical solution, when the energy storage closing spring module is not storing energy, the energy storage ratchet is inserted into the bayonet under the elastic force of the torsion spring. The power component is activated, which drives the energy storage gear to rotate. The energy storage gear drives the energy storage ratchet to move. When the energy storage gear drives the energy storage ratchet to rotate, the energy storage ratchet drives the energy storage limit plate to rotate. The energy storage limit plate drives the energy storage shaft to rotate. The energy storage shaft drives the energy storage crank arm to rotate. The energy storage crank arm stretches the energy storage closing spring module, allowing the energy storage closing spring module to complete energy storage. After the energy storage is in place, the tail end of the energy storage ratchet is pressed down by the stop block on the mechanism frame module, causing the other end of the energy storage ratchet to disengage from the bayonet.

[0015] Preferably, the power component includes an energy storage operating shaft module rotatably mounted on the side of the mechanism frame module, an output gear is sleeved and fixed on the energy storage operating shaft module, the output gear meshes with the energy storage gear, a motor is provided on the mechanism frame module, and the output shaft of the motor drives the energy storage operating shaft module to rotate through gear transmission.

[0016] By adopting the above technical solution, the motor is started, and the output shaft of the motor drives the energy storage operating shaft to rotate through gear transmission. The energy storage operating shaft drives the output gear to rotate, thereby driving the energy storage gear to rotate.

[0017] Preferably, an energy storage retaining wheel is fixed to the side of the energy storage limiting plate, an energy storage retaining plate is rotatably mounted on the side of the mechanism frame module, the bottom end of the energy storage retaining plate abuts against the outer circumferential surface of the energy storage retaining wheel when energy storage is in place, an energy storage retaining tension spring is fixed to the side of the mechanism frame module, the end of the energy storage retaining tension spring is fixedly connected to the energy storage retaining plate, and a closing semi-circular shaft is rotatably mounted on the side of the mechanism frame module, the end of the energy storage retaining plate away from the energy storage retaining wheel abuts against the outer circumferential surface of the closing semi-circular shaft.

[0018] By adopting the above technical solution, when the energy storage gear drives the energy storage ratchet to rotate, causing the energy storage ratchet to drive the energy storage limit plate to rotate, the energy storage limit plate also drives the energy storage holding wheel to move. When the energy storage closing spring module is in the energy storage state, one end of the energy storage holding plate abuts against the outer circumference of the closing semicircle, and the energy storage holding plate tension spring hooks the energy storage holding plate, causing the other end of the energy storage holding plate to push against the energy storage holding wheel, giving it a force that makes it rotate counterclockwise. When not in operation, one end of the energy storage holding plate is in close contact with the outer circumference of the closing semicircle shaft and is in a stationary state, realizing the energy storage holding function. In the holding state, manually rotate the closing semi-circular shaft, or issue a closing command through the smart terminal, so that the closing electromagnet pushes the closing semi-circular shaft, so that the notch of the closing semi-circular shaft corresponds to the energy storage holding plate, allowing the energy storage holding plate to rotate. The energy storage holding plate is pushed open by the energy storage holding wheel, and the energy storage closing spring module drives the energy storage crank arm to rotate. The energy storage crank arm drives the energy storage cam to rotate counterclockwise, so that the arc surface of the energy storage cam pushes the closing bearing to move, so that the closing bearing drives the closing plate to rotate. The closing plate pushes the closing push rod, so that the closing push rod drives the swing arm to rotate. The swing arm drives the main shaft module of the mechanism to rotate clockwise, realizing the closing.

[0019] Preferably, a second swing arm is fixedly mounted on the main shaft module of the mechanism, and a tripping energy storage rod is hinged to the second swing arm. A mounting block is fixed on the side of the front plate module of the mechanism near the side of the frame module of the mechanism. A through hole is opened on the top surface of the mounting block, and the bottom end of the tripping energy storage rod passes through the through hole. A limit block is fixed on the bottom end of the tripping energy storage rod. A tripping energy storage spring is mounted on the periphery of the tripping energy storage rod. The top end of the tripping energy storage spring abuts against the bottom surface of the mounting block, and the bottom end of the tripping energy storage spring abuts against the top surface of the limit block.

[0020] By adopting the above technical solution, when the main shaft module of the first swing arm drive mechanism rotates, the main shaft module also drives the second swing arm to rotate, causing the second swing arm's opening energy storage rod to move upward, so that the opening energy storage spring is in a compressed state, thereby enabling the opening energy storage spring to complete energy storage.

[0021] Preferably, a tripping toothed shaft is rotatably mounted on the side of the mechanism frame module, and a fixed tripping energy storage tooth is sleeved on the outer circumferential surface of the tripping toothed shaft. A tripping energy storage ratchet is provided on the tripping energy storage tooth. A tripping bearing is provided on the closing plate, and the tripping bearing abuts against the tripping energy storage ratchet. A tripping semi-circular shaft is rotatably mounted on the side of the mechanism frame module, and the tripping energy storage tooth abuts against the outer surface of the tripping semi-circular shaft.

[0022] By adopting the above technical solution, when the closing plate rotates and pushes the closing push rod to move, causing the closing push rod to drive the first swing arm to rotate, and the first swing arm to drive the main shaft module of the mechanism to rotate to complete the closing, the closing plate also drives the opening bearing to move, causing the opening bearing to drive the energy storage ratchet to rotate, and the energy storage ratchet to drive the energy storage locking tooth to rotate, so that the energy storage locking tooth abuts against the outer circumference of the opening semi-circular shaft, so that the second swing arm cannot rotate downward under the elastic force of the opening energy storage spring, thereby realizing the opening energy storage; when the opening operation is required, in the opening energy storage holding state, the opening semi-circular shaft can be manually rotated, or an opening command can be issued through the intelligent terminal, so that the opening electromagnet can push the opening. The semi-circular shaft rotates, aligning the semi-circular notch of the tripping semi-circular shaft with the energy storage teeth. Under the elastic force of the tripping energy storage spring, the energy storage ratchet and the energy storage teeth are pushed together by the tripping bearing and rotate counterclockwise around the tripping tooth shaft, opening the tripping bearing. This allows the tripping energy storage spring to drive the limit block to move downwards, which in turn drives the tripping energy storage rod to move downwards. The tripping energy storage rod then drives the second swing arm to rotate downwards, causing the second swing arm to drive the main shaft module of the mechanism to rotate. This, in turn, drives the main shaft module of the mechanism to rotate, which in turn drives the transmission main shaft to rotate. The transmission main shaft then drives the drive crank arm to rotate, causing the drive crank arm to drive the drive bearing to move upwards. Finally, the drive bearing drives the pull rod to move upwards, thus achieving tripping.

[0023] Preferably, the bottom end of the energy storage plate is arc-shaped.

[0024] By adopting the above technical solution, the bottom end of the energy storage plate is designed as an arc, which makes it easier for the energy storage plate to be pushed by the energy storage wheel to rotate counterclockwise.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the vacuum circuit breaker needs to be closed, the drive shaft is rotated by the circuit breaker mechanism, which in turn drives the drive crank arm to rotate. The drive crank arm drives the drive bearing to move downward, which in turn drives the connecting shaft to move downward. The connecting shaft then drives the pull rod to move downward, thus closing the arc-extinguishing chamber. When the vacuum circuit breaker needs to be opened, the drive shaft is rotated in the opposite direction by the circuit breaker mechanism, which in turn drives the drive crank arm to rotate. The drive crank arm drives the drive bearing to move upward, which in turn drives the pull rod to move upward, thereby achieving rapid opening of the circuit breaker and improving its breaking efficiency.

[0027] 2. Start the drive assembly to drive the energy storage shaft to rotate. The energy storage shaft drives the energy storage cam to rotate upward. When the drive mechanism drives the energy storage shaft to rotate, the energy storage shaft also drives the energy storage crank arm to rotate. The energy storage crank arm drives the energy storage closing spring module to move downward, putting the energy storage closing spring module in a compressed state, thus putting the energy storage closing spring module in an energy storage state. When the drive assembly is released, the energy storage crank arm rotates under the elastic force of the energy storage closing spring module, causing the energy storage crank arm to drive the energy storage shaft to rotate. The energy storage shaft drives the energy storage cam to rotate, thus causing the energy storage cam to push the closing bearing to move during rotation, thereby causing the closing bearing to drive the closing plate to rotate.

[0028] 3. When the energy storage closing spring module is not storing energy, the energy storage ratchet is inserted into the bayonet under the elastic force of the torsion spring. The power component is activated, which drives the energy storage gear to rotate. The energy storage gear drives the energy storage ratchet to move. When the energy storage gear drives the energy storage ratchet to rotate, the energy storage ratchet drives the energy storage limit plate to rotate. The energy storage limit plate drives the energy storage shaft to rotate. The energy storage shaft drives the energy storage crank arm to rotate. The energy storage crank arm compresses the energy storage closing spring module, allowing the energy storage closing spring module to complete energy storage. After the energy storage is in place, the tail end of the energy storage ratchet is pressed down by the stop block on the mechanism frame module, causing the other end of the energy storage ratchet to disengage from the bayonet. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the intelligent fast-acting circuit breaker execution system according to an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the structure of the vacuum circuit breaker in the embodiments of this application.

[0031] Figure 3 It is along Figure 2 Sectional view along the AA direction.

[0032] Figure 4 This is a schematic diagram of the circuit breaker mechanism in an embodiment of this application.

[0033] Figure 5 It is along Figure 4 Sectional view along the BB direction.

[0034] Figure 6 This is a schematic diagram of the energy storage shaft in an embodiment of this application.

[0035] Figure 7 This is a schematic diagram of the energy storage cam in an embodiment of this application.

[0036] Figure 8 This is a schematic diagram of the energy storage plate in the embodiments of this application.

[0037] Figure 9This is a schematic diagram of the structure of the second swing arm in the embodiment of this application.

[0038] Figure 10 This is a schematic diagram of the structure of the tripping energy storage card tooth in the embodiment of this application.

[0039] Reference numerals: 1. Gas box; 11. Side extension terminal; 12. Vacuum circuit breaker; 13. Three-position disconnect switch; 14. Copper rod; 15. Incoming and outgoing bushings; 2. Switch frame; 21. Drive spindle; 22. Drive crank arm; 23. Arc groove; 24. Connecting shaft; 25. Drive bearing; 26. Pull rod; 27. Arc extinguishing chamber; 3. Mechanism base plate module; 31. Mechanism frame module; 32. Mechanism front plate module; 4. Circuit breaker mechanism; 41. Mechanism spindle module; 42. Swing arm one; 43. Closing plate; 44. Closing push rod; 45. Energy storage shaft; 46. Energy storage cam; 47. Energy storage crank arm; 48. Energy storage closing spring module; 49. Mounting rod; 5. Energy storage tooth 51. Energy storage limit plate; 52. Bayonet; 53. Closing energy storage ratchet; 54. Torsion spring one; 55. Closing bearing; 56. Energy storage operating shaft module; 57. Output gear; 58. Motor; 6. Energy storage retaining wheel; 61. Energy storage retaining plate; 62. Energy storage retaining tension spring; 63. Closing semi-circular shaft; 7. Swing arm two; 71. Opening energy storage rod; 72. Mounting block; 73. Through hole; 74. Limiting block; 75. Opening energy storage spring; 8. Opening retaining gear shaft; 81. Opening energy storage ratchet; 82. Opening energy storage retaining gear; 83. Opening bearing; 84. Torsion spring two; 85. Opening semi-circular shaft; 86. Through hole; 87. Torsion spring three; 88. Limiting piece; 89. Racket pin. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0041] This application discloses an intelligent fast-acting circuit breaker execution system.

[0042] Reference Figure 1 , Figure 2 and Figure 3A smart fast-acting circuit breaker execution system includes a gas box 1. From top to bottom, the gas box 1 is equipped with a side extension terminal 11, a vacuum circuit breaker 12, a three-position disconnect switch 13, a copper rod 14, and inlet / outlet bushings 15. The vacuum circuit breaker 12 includes a switch frame 2 fixed to the gas box 1. An arc-extinguishing chamber 27 is fixed inside the switch frame 2. A drive shaft 21 passes through the side of the switch frame 2 and is rotatably connected to the switch frame 2. A drive crank arm 22 is fixedly mounted on the drive shaft 21. Arc-shaped grooves 23 are formed on the opposite inner surfaces of the drive crank arm 22. A connecting shaft 24 is installed inside the drive crank arm 22. Drive bearings 25 are fixedly mounted at both ends of the connecting shaft 24 and inserted into the arc-shaped grooves 23. A pull rod 26 is mounted on the outer circumference of the connecting shaft 24. The arc-extinguishing chamber 27 is located below the pull rod 26. A circuit breaker mechanism 4 for driving the drive shaft 21 is provided on the gas box 1.

[0043] Reference Figure 1 , Figure 4 and Figure 5 A mechanism base plate module 3 is fixed to the side of the gas box 1. A mechanism frame module 31 is provided on the side of the mechanism base plate module 3 away from the gas box 1. A mechanism front plate module 32 is provided on the side of the mechanism frame module 31 away from the gas box 1. The mechanism frame module 31 is fixedly connected to the mechanism base plate module 3 and the mechanism front plate module 32 respectively by positioning pins. The circuit breaker mechanism 4 includes a mechanism spindle module 41 rotatably mounted on the side of the mechanism frame module 31 near the mechanism front plate module 32. The mechanism spindle module 41 is connected to the transmission spindle 21 through a dynamic fit, so that when the mechanism spindle module 41 rotates, it drives the transmission spindle 21 to rotate through the dynamic fit. A swing arm 42 is fixedly fitted on the outer peripheral surface of the mechanism spindle module 41. A closing plate 43 is rotatably mounted on the side of the mechanism frame module 31 near the mechanism front plate module 32. A closing push rod 44 is provided between the closing plate 43 and the swing arm 42. The two ends of the closing push rod 44 are rotatably connected to the swing arm 42 and the closing plate 43 respectively.

[0044] Reference Figure 4 , Figure 5 and Figure 6 An energy storage shaft 45 is inserted through the side of the mechanism frame module 31, and the energy storage shaft 45 is rotatably connected to the mechanism frame module 31. An energy storage cam 46 is sleeved and fixed on the outer peripheral surface of the energy storage shaft 45. A closing bearing 55 is fixed on the side of the closing plate 43, and the outer peripheral surface of the energy storage cam 46 can abut against the outer peripheral surface of the closing bearing 55. An energy storage crank arm 47 is fixed to the end of the energy storage shaft 45 near the mechanism base plate module 3. An installation rod 49 is fixed to the side of the mechanism frame module 31 away from the mechanism front plate module 32. An energy storage closing spring module 48 is fixed to the bottom end of the installation rod 49, and the energy storage crank arm 47 is rotatably connected to the bottom end of the energy storage closing spring module 48.

[0045] Reference Figure 5 , Figure 6 and Figure 7 An energy storage gear 5 is fitted onto the outer circumferential surface of the energy storage shaft 45. The energy storage gear 5 is rotatably connected to the energy storage shaft 45. An energy storage limiting plate 51 is fixedly fitted onto the outer circumferential surface of the energy storage shaft 45. The energy storage limiting plate 51 is located on the side of the energy storage gear 5 away from the energy storage cam 46. A bayonet 52 is provided on the outer circumferential surface of the energy storage limiting plate 51. A closing energy storage ratchet 53 is rotatably mounted on the side of the energy storage gear 5 near the energy storage limiting plate 51. A torsion spring 54 is fixedly fixed on the side of the energy storage gear 5. One end of the torsion spring 54 is fixedly connected to the side of the closing energy storage ratchet 53. The closing energy storage ratchet 53 can swing under the elastic force of the torsion spring 54.

[0046] Reference Figure 5 and Figure 6 An energy storage operating shaft module 56 is inserted through the side of the mechanism frame module 31. The energy storage operating shaft module 56 is rotatably connected to the mechanism frame module 31. An output gear 57 is fixedly fitted onto the outer circumference of the energy storage operating shaft module 56, and the output gear 57 meshes with the energy storage gear 5. A motor 58 is fixed on the mechanism frame module 31, and the output shaft of the motor 58 drives the energy storage operating shaft module 56 to rotate through gear transmission.

[0047] Reference Figure 4 and Figure 8 An energy storage retaining wheel 6 is fixed to the side of the energy storage limiting plate 51 away from the energy storage gear 5. An energy storage retaining plate 61 is rotatably mounted on the side of the mechanism frame module 31 near the mechanism front plate module 32. The bottom end of the energy storage retaining plate 61 is arc-shaped, and the arc surface of the bottom end of the energy storage retaining plate 61 abuts against the outer peripheral surface of the energy storage retaining wheel 6. An energy storage retaining tension spring 62 is fixed to the side of the mechanism frame module 31, and the end of the energy storage retaining tension spring 62 is fixedly connected to the energy storage retaining plate 61. A closing semi-circular shaft 63 is rotatably mounted on the side of the mechanism frame module 31, and the end of the energy storage retaining plate 61 away from the energy storage retaining wheel 6 abuts against the outer peripheral surface of the closing semi-circular shaft 63.

[0048] Reference Figure 4 , Figure 8 and Figure 9 A second swing arm 7 is fixedly fitted onto the outer periphery of the main shaft module 41 of the mechanism. The second swing arm 7 is located on the side of the first swing arm 42 near the front plate module 32 of the mechanism, and a tripping energy storage rod 71 is hinged to the bottom end of the second swing arm 7. A mounting block 72 is fixed to the side of the front plate module 32 near the mechanism frame module 31. A through hole 73 is opened on the top surface of the mounting block 72, and the bottom end of the tripping energy storage rod 71 passes through the through hole 73. A limit block 74 is fixed to the bottom end of the tripping energy storage rod 71, and a tripping energy storage spring 75 is fitted around the periphery of the tripping energy storage rod 71. The top end of the tripping energy storage spring 75 abuts against the bottom surface of the mounting block 72, and the bottom end of the tripping energy storage spring 75 abuts against the top surface of the limit block 74.

[0049] Reference Figure 4 , Figure 8 and Figure 10 A tripping tooth shaft 8 is rotatably mounted on the side of the mechanism frame module 31. A limit plate 88 is fixedly fitted on the outer circumferential surface of the tripping tooth shaft 8. A second torsion spring 84 is fitted on the outer circumferential surface of the tripping tooth shaft 8. One end of the second torsion spring 84 abuts against the limit plate 88, and the other end of the second torsion spring 84 is fixedly connected to the side of the mechanism base plate module 3. A tripping energy storage tooth 82 is fixedly fitted on the outer circumferential surface of the tripping tooth shaft 8. A through-hole 86 is opened in the tripping energy storage tooth 82. A ratchet pin 89 is rotatably mounted between the opposite inner surfaces of the through-hole 86. One end of the ratchet pin 89 passes through the side of the tripping energy storage tooth 82. A tripping energy storage ratchet 81 is fixedly fitted on the ratchet pin 89 and is located in the through-hole 86. A torsion spring 87 is fitted onto the outer circumferential surface of the ratchet pin 89. One end of the torsion spring 87 is connected to the tripping energy storage ratchet 81, and the other end of the torsion spring 87 is close to the outer circumferential surface of the tripping clamping shaft 8. A tripping bearing 83 is fixed to the side of the closing plate 43. The tripping energy storage ratchet 81 is driven by the tripping energy storage clamping tooth 82. Under the elastic force of the torsion spring 87, the tripping energy storage ratchet 81 rotates towards the closing plate 43, and the tripping energy storage ratchet 81 abuts against the outer circumferential surface of the tripping bearing 83. A tripping semi-circular shaft 85 is rotatably mounted on the side of the mechanism frame module 31, and the tripping energy storage clamping tooth 82 abuts against the outer circumferential surface of the tripping semi-circular shaft 85. The rotation of the tripping energy storage ratchet 81 is limited by the through-hole 86 to reduce the pressure on the tripping bearing 83 from the tripping semi-circular shaft 85.

[0050] The implementation principle of the intelligent fast-acting circuit breaker execution system in this application embodiment is as follows: In the open state, by rotating the energy storage shaft 45, the energy storage shaft 45 drives the energy storage limit plate 51 to rotate. At this time, the energy storage shaft 45 drives the energy storage crank arm 47 to rotate. During the rotation, the energy storage crank arm 47 pulls down the energy storage closing spring module 48 so that the energy storage closing spring module 48 just passes the energy storage critical point. At this time, the energy storage holding wheel 6 on the energy storage limit plate 51 abuts against the bottom end of the energy storage holding plate 61, and the top end of the energy storage holding plate 61 abuts against the outer circumferential surface of the closing semi-circular shaft 63, so that the energy storage crank arm 47 cannot rotate under the elastic force of the energy storage closing spring module 48, thus realizing the closing energy storage holding state.

[0051] Closing Operation: While maintaining the closed energy storage state, manually rotate the closing semi-circular shaft 63, or issue a closing command via a smart terminal. This causes the closing electromagnet to push the closing semi-circular shaft 63 to rotate, aligning the notch of the closing semi-circular shaft 63 with the top of the energy storage holding plate 61. This allows the energy storage holding plate 61 to rotate, enabling it to be pushed open by the energy storage holding wheel 6. Under the elastic force of the energy storage closing spring module 48, the energy storage crank arm 47 rotates upward, causing the energy storage crank arm 47 to drive the energy storage shaft 45 to rotate. The energy storage shaft 45 then drives the energy storage cam 46 to rotate. The energy storage cam 46 pushes the closing bearing 55 to move, which in turn drives the closing plate 43 to rotate. During the rotation, the closing plate 43 pushes the closing push rod 44, which in turn pushes the swing arm 42 upward. The swing arm 42 drives the main shaft module 41 of the mechanism to rotate. The main shaft module 41 of the mechanism drives the transmission main shaft 21 to rotate through dynamic cooperation. The transmission main shaft 21 drives the drive crank arm 22 to rotate. The drive crank arm 22 drives the drive bearing 25 to move downward. The drive bearing 25 drives the pull rod 26 to move downward, thereby enabling the arc-extinguishing chamber 27 to close quickly.

[0052] After the circuit breaker switch is closed, the arc groove 23 on the drive crank arm 22 pushes the drive bearing 25, which in turn pushes the pull rod 26, preventing the pull rod 26 from bouncing upward due to electric force and causing the circuit to open, thus achieving self-locking.

[0053] While the vacuum circuit breaker 12 is closing, the main shaft module 41 of the mechanism also drives the swing arm 7 to rotate upward during rotation, causing the swing arm 7 to pull the trip energy storage rod 71 upward, so that the trip energy storage spring 75 is in a compressed state, realizing trip energy storage; similarly, when the energy storage cam 46 pushes the closing bearing 55 to drive the closing plate 43 to rotate, the trip bearing 83 on the closing plate 43 passes over the trip energy storage ratchet 81, so that the trip energy storage locking tooth 82 abuts against the outer circumferential surface of the trip semi-circular shaft 85, and the bottom end of the trip energy storage ratchet 81 abuts against the outer circumferential surface of the trip bearing 83, so that the swing arm 7 cannot rotate downward under the elastic force of the trip energy storage spring 75, realizing trip energy storage retention.

[0054] Opening operation: In the opening energy storage holding state, manually rotate the opening semi-circular shaft 85, or issue an opening command through the intelligent terminal, so that the opening electromagnet pushes the opening semi-circular shaft 85 to rotate, so that the notch of the opening semi-circular shaft 85 aligns with the opening energy storage tooth 82, so that the opening energy storage tooth 82 and the opening energy storage ratchet 81 can be pushed by the opening bearing 83, so that the opening energy storage rod 71 moves downward under the elastic force of the opening energy storage spring 75. The opening energy storage rod 71 drives the swing arm 7 to rotate downward, so that the swing arm 7 drives the main shaft module 41 of the mechanism to rotate in the opposite direction. The main shaft module 41 of the mechanism drives the transmission main shaft 21 to rotate through dynamic cooperation. The transmission main shaft 21 drives the drive crank arm 22 to rotate. The drive crank arm 22 drives the drive bearing 25 to move upward, so that the drive bearing 25 drives the pull rod 26 to move upward, thereby realizing rapid opening.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An intelligent instantaneous circuit breaker actuation system, characterized in that: The system includes a gas box (1), on which, from top to bottom, are arranged a side extension terminal (11), a vacuum circuit breaker (12), a three-position disconnect switch (13), a copper rod (14), and inlet / outlet bushings (15). Inside the gas box (1) is a switch frame (2). The vacuum circuit breaker (12) includes an arc-extinguishing chamber (27) mounted on the switch frame (2) and a drive shaft (21) rotatably mounted on the switch frame (2). A drive crank arm (22) is mounted on the drive shaft (21). Arc-shaped grooves (23) are formed on the opposing inner surfaces of the drive crank arm (22). A connecting shaft (24) is provided inside, and drive bearings (25) are provided at both ends of the connecting shaft (24). The drive bearings (25) are located in the arc groove (23). A pull rod (26) is sleeved on the outer circumference of the connecting shaft (24). The arc-extinguishing chamber (27) is located below the pull rod (26). A circuit breaker mechanism (4) for driving the transmission main shaft (21) to rotate is provided on the air box (1). A mechanism base plate module (3), a mechanism frame module (31) and a mechanism front plate module (32) are provided on the side of the air box (1). The mechanism frame module (31) is connected to the mechanism through positioning pins. The base plate module (3) and the front plate module (32) of the mechanism are fixedly connected. The circuit breaker mechanism (4) includes a main shaft module (41) rotatably mounted on the side of the mechanism frame module (31) near the front plate module (32). The main shaft module (41) is connected to the transmission main shaft (21) through dynamic engagement. A swing arm (42) is fixed on the main shaft module (41). A closing plate (43) is rotatably mounted on the side of the mechanism frame module (31) near the front plate module (32). A closing push rod (44) is provided between the closing plate (43) and the swing arm (42). The two ends of the closing push rod (44) are rotatably connected to the first swing arm (42) and the closing plate (43) respectively. The mechanism frame module (31) is provided with a driving mechanism for driving the closing plate (43) to rotate. The mechanism main shaft module (41) is sleeved and fixed with the second swing arm (7). The second swing arm (7) is hinged with the opening energy storage rod (71). The mechanism front plate module (32) is fixed with a mounting block (72) near the side of the mechanism frame module (31). The top surface of the mounting block (72) is provided with a through hole (73). The bottom end of the opening energy storage rod (71) passes through the through hole (73).A limit block (74) is fixed to the bottom end of the tripping energy storage rod (71). A tripping energy storage spring (75) is sleeved on the periphery of the tripping energy storage rod (71). The top end of the tripping energy storage spring (75) abuts against the bottom surface of the mounting block (72), and the bottom end of the tripping energy storage spring (75) abuts against the top surface of the limit block (74). A tripping tooth shaft (8) is rotatably installed on the side of the mechanism frame module (31). A tripping energy storage tooth (82) is sleeved on the outer periphery of the tripping tooth shaft (8). A through-hole (86) is opened in the tripping energy storage tooth (82). A ratchet pin (89) is rotatably installed between the opposite inner surfaces of the through-hole (86). One end of the ratchet pin (89) passes through the tripping energy storage tooth. On the side of (82), a tripping energy storage ratchet (81) is fixedly fitted on the ratchet pin (89). The tripping energy storage ratchet (81) is located inside the through-hole (86). A torsion spring three (87) is fitted on the outer circumferential surface of the ratchet pin (89). One end of the torsion spring three (87) is connected to the tripping energy storage ratchet (81), and the other end of the torsion spring three (87) is close to the outer circular surface of the tripping locking tooth shaft (8). A tripping bearing (83) is provided on the closing plate (43). The tripping bearing (83) abuts against the tripping energy storage ratchet (81). A tripping semi-circular shaft (85) is rotatably installed on the side of the mechanism frame module (31). The tripping energy storage locking tooth (82) abuts against the outer surface of the tripping semi-circular shaft (85).

2. The intelligent instantaneous circuit breaker execution system according to claim 1, characterized in that: The drive mechanism includes an energy storage shaft (45) passing through the side of the mechanism frame module (31). An energy storage cam (46) is fixedly sleeved on the energy storage shaft (45). A closing bearing (55) is rotatably mounted on the closing plate (43). The outer peripheral surface of the energy storage cam (46) can abut against the outer peripheral surface of the closing bearing (55). An energy storage crank arm (47) is fixed at one end of the energy storage shaft (45) away from the mechanism front plate module (32). An installation rod (49) is fixed on the side of the mechanism frame module (31) away from the mechanism front plate module (32). An energy storage closing spring module (48) is fixed at the bottom end of the installation rod (49). The energy storage crank arm (47) is connected to the bottom end of the energy storage closing spring module (48). A drive assembly for driving the energy storage shaft (45) to rotate is provided on the mechanism frame module (31).

3. The intelligent instantaneous circuit breaker execution system according to claim 2, characterized in that: The drive assembly includes an energy storage gear (5) sleeved on the energy storage shaft (45), the energy storage gear (5) being rotatably connected to the energy storage shaft (45), an energy storage limiting plate (51) being sleeved and fixed on the energy storage shaft (45), a slot (52) being provided on the outer peripheral surface of the energy storage limiting plate (51), a closing energy storage ratchet (53) being rotatably mounted on the side of the energy storage gear (5), a torsion spring (54) being provided on the side of the energy storage gear (5), one end of the torsion spring (54) being fixedly connected to the side of the closing energy storage ratchet (53), and the other end of the torsion spring (54) being connected to the energy storage gear (5), and the end of the closing energy storage ratchet (53) being inserted into the slot (52) when not storing energy, and a power component for driving the energy storage gear (5) to rotate being provided on the mechanism frame module (31).

4. The intelligent instantaneous circuit breaker execution system according to claim 3, characterized in that: The power component includes an energy storage operating shaft module (56) rotatably mounted on the side of the mechanism frame module (31). An output gear (57) is sleeved and fixed on the energy storage operating shaft module (56). The output gear (57) meshes with the energy storage gear (5). A motor (58) is provided on the mechanism frame module (31). The output shaft of the motor (58) drives the energy storage operating shaft module (56) to rotate through gear transmission.

5. The intelligent instantaneous circuit breaker execution system according to claim 4, characterized in that: An energy storage retaining wheel (6) is fixed to the side of the energy storage limiting plate (51), and an energy storage retaining plate (61) is rotatably mounted on the side of the mechanism frame module (31). The bottom end of the energy storage retaining plate (61) abuts against the outer circumferential surface of the energy storage retaining wheel (6) when the energy storage is in place. An energy storage retaining spring (62) is fixed to the side of the mechanism frame module (31), and the end of the energy storage retaining spring (62) is fixedly connected to the energy storage retaining plate (61). A closing semi-circular shaft (63) is rotatably mounted on the side of the mechanism frame module (31), and the end of the energy storage retaining plate (61) away from the energy storage retaining wheel (6) abuts against the outer circumferential surface of the closing semi-circular shaft (63).

6. The intelligent instantaneous circuit breaker execution system according to claim 5, characterized in that: The bottom of the energy storage plate (61) is arc-shaped.

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