Outdoor isolation built-in environment-friendly circuit breaker

Abstract

The application discloses an outdoor knife-separation built-in environment-friendly circuit breaker in the technical field of switch devices, and aims to solve the problems that the prior art does not generally have the function of an isolating switch, and an independent isolating switch must be installed beside the circuit breaker for use; meanwhile, the structure of the prior switch device is relatively dispersed, the installation process is relatively complex, and the switch device occupies a large space. The circuit breaker comprises a box body, a deep-fusion pole is arranged in the box body, a circuit breaker operating mechanism and an isolating operating mechanism are arranged on the box body, and a bushing assembly is arranged on one side of the deep-fusion pole. The deep-fusion pole is compactly designed with an arc-extinguishing chamber and an outgoing terminal seat, and is simultaneously provided with an isolating blade assembly, so that the circuit breaker and the isolating switch are close in space, the number of connected conductive parts is small, the rotational inertia is small, the opening and closing time is shortened, the stability and reliability of operation are improved, meanwhile, high and low voltage components are highly integrated, the physical isolation of a line can be realized without installing an independent isolating switch, and the safety is enhanced.

Description

Technical Field

[0001] This invention relates to an outdoor, environmentally friendly circuit breaker with a built-in switchgear, belonging to the field of switchgear technology. Background Technology

[0002] High-voltage switchgear is a critical component for power transmission and control in power grids. Currently, many switchgear used in the medium-voltage distribution market is filled with high-voltage or slightly positive-pressure gases such as SF6. Environmentally friendly atmospheric-pressure circuit breakers, however, are filled with a single atmosphere of environmentally friendly gas, eliminating the risk of gas leakage due to the lack of internal and external pressure differences, thus aligning better with a green, environmentally friendly, and low-carbon lifestyle. Compared to the design of most distribution network switchgear where all primary circuit components are sealed in a single enclosure, the three-phase split isolation structure significantly improves insulation margin between phases and minimizes the spread of faults when a phase experiences a phase-to-ground short circuit. Safety is always paramount in power grid equipment operation. Maintenance personnel need to visually monitor the opening and closing of circuits when lines are disconnected or connected. Since conventional outdoor switches do not have the function of isolating switches, independent isolating switches must be installed alongside them for optimal performance.

[0003] In summary, existing outdoor switchgear typically does not have the function of a disconnecting switch and requires the installation of a separate disconnecting switch next to it for use. At the same time, the structure of existing switchgear is relatively dispersed, the installation process is relatively complicated, it occupies a large space, and its safety is poor, which affects the actual use effect of the switchgear. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an outdoor environmentally friendly circuit breaker with built-in isolating blades. The deeply integrated pole has a compact design with an arc-extinguishing chamber and a terminal block, and is equipped with isolating blade assemblies. This makes the circuit breaker and isolating switch close in space, reduces the number of connected conductive parts and the moment of inertia, shortens the opening and closing time, and improves the stability and reliability of the operation. At the same time, it highly integrates components and can achieve physical isolation of the line without the need to install a separate isolating switch, enhancing its safety and significantly reducing the workload of on-site installation and commissioning.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0006] This invention provides an outdoor, environmentally friendly circuit breaker with a built-in switch, including a housing, a deep-fusion pole inside the housing, a circuit breaker operating mechanism and an isolation operating mechanism on the housing, and a bushing assembly on one side of the deep-fusion pole on the housing.

[0007] The housing is equipped with a fixed plate, the deep-melting electrode is mounted on the fixed plate, the deep-melting electrode is equipped with an arc-extinguishing chamber, the arc-extinguishing chamber is equipped with a lead-out seat, the deep-melting electrode is equipped with a first conductive rod and a second conductive rod, one end of the first conductive rod is equipped with a flexible connection below the arc-extinguishing chamber, the fixed plate is equipped with a slidingly connected insulating pull rod below the flexible connection, and the circuit breaker operating mechanism is used to push the insulating pull rod to move up and down;

[0008] The housing is provided with a rotatably connected isolation main shaft, the deep melting electrode post is rotatably connected to the isolation main shaft, and an isolation blade assembly is sleeved on the outer wall of the isolation main shaft on one side of the deep melting electrode post. The isolation blade assembly is used to connect the outlet socket and the second conductive rod, and the isolation operating mechanism is used to drive the isolation main shaft to rotate.

[0009] The first conductive rod and the second conductive rod are respectively connected to the sleeve assembly via connectors.

[0010] Furthermore, the circuit breaker operating mechanism includes a fixed seat disposed on the fixed plate, and a circuit breaker main shaft rotatably connected to one side of the fixed seat on the inner wall of the housing. The fixed seat is rotatably connected to the circuit breaker main shaft. A moving block is disposed at the end of the insulating pull rod away from the flexible connection. A first crank arm is sleeved on one side of the moving block on the circuit breaker main shaft. The first crank arm is slidably connected to the moving block. When the circuit breaker main shaft drives the first crank arm to swing, the first crank arm is used to push the moving block to move up and down.

[0011] Furthermore, the circuit breaker operating mechanism also includes a first plate and a second plate. The first plate is disposed on the side wall of the housing. The first plate and the second plate are connected by a plurality of auxiliary fixed shafts. A first fixed shaft is rotatably connected between the first plate and the second plate. One end of the first fixed shaft extends to the outside of the second plate and is connected to one end of a first spring through a spring hanger.

[0012] A third crank arm is rotatably connected between the first plate and the second plate. A second spring is movably connected to the third crank arm. A guide plate is provided at the end of the second spring away from the third crank arm. The guide plate is fixedly connected to the first fixed shaft. One end of the circuit breaker main shaft extends to the outside of the housing and is provided with a first push block. A second push block is rotatably connected to the first push block. A third push block is rotatably connected to the second push block. The third push block is fixedly connected to the third crank arm. The third push block and the third crank arm are coaxially arranged.

[0013] A main shaft is rotatably connected between the first plate and the second plate. A clutch wheel and a cam are coaxially sleeved on the outer wall of the main shaft. One end of the main shaft extends to the outside of the second plate and is sleeved with a second crank arm. The other end of the first spring is rotatably connected to the second crank arm through a spring hanging plate. When the main shaft drives the cam to rotate, the cam is used to push the third crank arm to rotate. A roller is rotatably connected to the outer wall of the third crank arm on one side of the cam.

[0014] A power mechanism for driving the main shaft to rotate is provided between the first plate and the second plate.

[0015] Furthermore, the power mechanism includes a first gear rotatably disposed between the first plate and the second plate, one end of the first gear extending to the outside of the second plate and having an energy storage shaft, a second gear rotatably connected to the outer wall of the main shaft on one side of the clutch wheel, the first gear meshing with the second gear, a through groove being opened on the clutch wheel, and a clutch block being provided on one side of the outer wall of the second gear on the through groove;

[0016] A limiting post is provided on one side of the outer wall of the clutch wheel. A first adjusting shaft and a first stop are provided between the first plate and the second plate for rotational connection. One end of the first stop is located on one side of the limiting post, and the other end of the first stop is located on one side of the first adjusting shaft. A first groove for the first stop to pass through is provided on the first adjusting shaft.

[0017] The outer wall of the first plate is provided with a second stop rotatably connected to the third crank arm. The second stop is elastically connected to the first plate through a return spring. The outer wall of the first plate is provided with a column and a second adjusting shaft on both sides of the second stop. The second adjusting shaft is rotatably connected to the first plate. A second groove for passing through the second stop is provided on the second adjusting shaft. The outer wall of the second stop is provided with a third stop rotatably connected to the third crank arm. The third stop is elastically connected to the second stop through a first return spring. The third stop is used to block the third crank arm.

[0018] Furthermore, the auxiliary fixed shaft includes a first shaft and a second shaft. A fourth stop is rotatably connected to the outer wall of the first shaft. The fourth stop is elastically connected to the first shaft through a second return spring. The fourth stop is used to block the first gear.

[0019] The first stop has a first inclined surface at the end near the limiting post, and the third stop has a second inclined surface at the end near the third crank arm.

[0020] Furthermore, the number of deep-penetration electrodes is three, and the three deep-penetration electrodes are arranged side by side on the fixing plate;

[0021] The housing is provided with a flight plug, and both the deep melting pole and the sleeve assembly are provided with coils. The flight plug is used to pass through the lead wire of the coil.

[0022] The outer wall of the isolation spindle is fitted with multiple limiting sleeves, which are used to limit the movement of the multiple isolation blade assemblies.

[0023] Furthermore, the circuit breaker main shaft is rotatably connected to the housing via a first sealed bearing, and the isolation main shaft is rotatably connected to the housing via a second sealed bearing; the housing is a sealed structure.

[0024] Furthermore, the isolation blade assembly includes two isolation blades, with multiple pins slidably connected between the two isolation blades. Each pin has a shielding cap at both ends, and the two shielding caps are located on the outside of the two isolation blades respectively. A compression spring is provided between the shielding cap and the adjacent isolation blade, and the compression spring is sleeved on the outside of the pin. A clamping plate is provided between the two isolation blades.

[0025] Furthermore, the isolation operating mechanism includes two third plates, one of which is located on the outside of the housing. An installation shaft and multiple auxiliary shafts are provided between the two third plates. A rotatably connected sliding crank arm is provided between the two third plates. The isolation main shaft is fixedly connected to the sliding crank arm. An operating crank arm is rotatably connected to one side of the outer wall of the sliding crank arm. The operating crank arm is coaxially arranged with the sliding crank arm. A rotatably connected first rod is sleeved on the outer wall of the installation shaft. A slidably connected second rod is provided on the side of the first rod away from the installation shaft. An arc-shaped groove is formed on the sliding crank arm. One end of the second rod is slidably connected to the arc-shaped groove. The same third return spring is sleeved on the outer walls of the first rod and the second rod.

[0026] Furthermore, one of the outer walls of the third plate is provided with limiting blocks on both sides of the slide rail crank arm, and the limiting blocks are used to block the slide rail crank arm.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0028] This outdoor disconnector features a built-in environmentally friendly circuit breaker. The compact design of the Shenrong pole incorporates an arc-extinguishing chamber and outgoing terminal block, along with an isolating blade assembly. This design ensures the circuit breaker and disconnector are spatially close, reducing the number of connected conductive components and minimizing rotational inertia. This shortens opening and closing times, improving operational stability and reliability. Furthermore, the highly integrated components eliminate the need for a separate disconnector, achieving physical isolation of the line and enhancing safety. It significantly reduces on-site installation and commissioning workload, simplifying installation, minimizing space requirements, and ensuring effective operation of the switchgear. The isolating blade assembly within the Shenrong pole creates a clear isolation break, reducing maintenance risks. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of an outdoor barrier-type environmentally friendly circuit breaker with built-in blades according to an embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural schematic diagram of the deep-melting electrode post and bushing assembly provided according to an embodiment of the present invention;

[0031] Figure 3 This is a three-dimensional structural schematic diagram of a deep-melting electrode provided according to an embodiment of the present invention;

[0032] Figure 4 This is a three-dimensional structural schematic diagram of the arc-extinguishing chamber provided according to an embodiment of the present invention;

[0033] Figure 5 This is a three-dimensional structural schematic diagram of a deep-melting electrode provided according to an embodiment of the present invention from another angle;

[0034] Figure 6 This is a schematic diagram of the main structure of the arc-extinguishing chamber according to an embodiment of the present invention;

[0035] Figure 7 This is a three-dimensional structural schematic diagram of the isolation blade assembly provided according to an embodiment of the present invention;

[0036] Figure 8 This is a three-dimensional structural schematic diagram of the isolation operating mechanism provided according to an embodiment of the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the third plate provided according to an embodiment of the present invention;

[0038] Figure 10 This is a three-dimensional structural diagram of another working state of the third plate according to an embodiment of the present invention;

[0039] Figure 11 This is a three-dimensional structural schematic diagram of the circuit breaker operating mechanism provided according to an embodiment of the present invention;

[0040] Figure 12 This is a three-dimensional structural diagram of the second plate provided according to an embodiment of the present invention;

[0041] Figure 13 This is a three-dimensional structural schematic diagram of the sliding crank arm provided according to an embodiment of the present invention;

[0042] Figure 14 This is a three-dimensional structural diagram of the first crank arm provided according to an embodiment of the present invention.

[0043] In the diagram: 1. Housing; 2. Limiting post; 3. Circuit breaker operating mechanism; 4. Isolation operating mechanism; 7. Bushing assembly; 70. First bushing assembly; 71. Second bushing assembly; 72. Third bushing assembly; 8. Airplane connector; 11. Second sealed bearing; 12. First sealed bearing; 13. Fixing plate; 20. Deep melting pole; 21. Arc extinguishing chamber; 210. Shielding cap; 211. Compression spring; 212. Isolation blade; 213. Pin; 22. Outlet socket; 23. Isolation blade assembly; 24. First conductive rod; 25. Second conductive rod; 26. Insulating pull rod; 27. Flexible connection; 28. Connector; 29. ​​Clamping plate; 30. First fixed shaft; 31. First plate; 310. Energy storage shaft; 311. Main shaft; 312. Second crank arm; 313. Spring hanging plate; 314. First spring; 315. Spring hanging block; 316. Second plate; 317, guide plate; 318, clutch block; 319, first stop; 32, second spring; 320, third stop; 321, second adjusting shaft; 322, second stop; 323, clutch wheel; 324, first adjusting shaft; 325, cam; 33, third crank arm; 34, roller; 35, second gear; 36, first shaft; 37, fourth stop; 38, first gear; 39, second shaft; 4 0. Third plate; 41. Auxiliary shaft; 42. Third return spring; 43. First rod; 44. Second rod; 45. Slide crank arm; 46. Limit block; 47. Operating crank arm; 48. Mounting shaft; 50. Moving block; 51. First crank arm; 52. Fixed seat; 53. First push block; 54. Second push block; 55. Third push block; 56. Circuit breaker main shaft; 60. Isolation main shaft; 61. Bearing; 62. Limit sleeve. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] like Figures 1-6 As shown, this invention provides an outdoor, environmentally friendly circuit breaker with a built-in isolation switch, including a housing 1. A deep-fusion pole 20 is provided inside the housing 1. A circuit breaker operating mechanism 3 and an isolation operating mechanism 4 are provided on the housing 1. A bushing assembly 7 is provided on one side of the deep-fusion pole 20 on the housing 1. A fixing plate 13 is provided inside the housing 1, and the deep-fusion pole 20 is mounted on the fixing plate 13. An arc-extinguishing chamber 21 is provided inside the deep-fusion pole 20. A terminal block 22 is provided on the arc-extinguishing chamber 21. A first conductive rod 24 and a second conductive rod 25 are provided on the deep-fusion pole 20. One end of the first conductive rod 24 is connected to a flexible connection 27 below the arc-extinguishing chamber 21. The fixing plate 1... An insulating pull rod 26 is slidably connected below the flexible connection 27. The circuit breaker operating mechanism 3 is used to push the insulating pull rod 26 to move up and down. An isolation spindle 60 is rotatably connected inside the housing 1. The deep-melting pole 20 is rotatably connected to the isolation spindle 60. An isolation blade assembly 23 is sleeved on one side of the deep-melting pole 20 on the outer wall of the isolation spindle 60. The isolation blade assembly 23 is used to connect the outlet seat 22 and the second conductive rod 25. The isolation operating mechanism 4 is used to drive the isolation spindle 60 to rotate. The first conductive rod 24 and the second conductive rod 25 are respectively connected to the sleeve assembly 7 through connectors 28.

[0048] Specifically, during operation, when opening or closing the circuit breaker is required, the circuit breaker operating mechanism 3 can be controlled to start working. The circuit breaker operating mechanism 3 can push the insulating rod 26 up and down. When the circuit breaker operating mechanism 3 pushes the insulating rod 26 upward, the top of the insulating rod 26 pushes the flexible connection 27 to contact the arc-extinguishing chamber 21, so that the first conductive rod 24 connects with the arc-extinguishing chamber 21 and the outgoing terminal block 22, thereby completing the closing operation. When the circuit breaker operating mechanism 3 pushes the insulating rod 26 downward... The insulating pull rod 26 no longer pushes the flexible connection 27 upward. At this time, the flexible connection 27 can return to its original position, disconnecting the first conductive rod 24 from the arc-extinguishing chamber 21 and completing the tripping operation. The isolation operating mechanism 4 can be controlled to drive the isolation blade assembly 23 to rotate, thereby controlling the connection or disconnection of the second conductive rod 25 and the outlet seat 22, thereby completing the isolation operation. Optionally, the flexible connection 27 is elastic. Optionally, the bushing assembly 7 includes a first bushing assembly 70, a second bushing assembly 71, and a third bushing assembly 72.

[0049] The Deep Fusion Pole 20 of this invention features a compact internal design with an arc-extinguishing chamber 21 and a terminal block 22, along with an isolating blade assembly 23. This design ensures that the circuit breaker and disconnector are spatially close, reducing the number of connected conductive components and minimizing rotational inertia. This shortens the opening and closing time, improves operational stability and reliability, and highly integrates components. Furthermore, it eliminates the need for a separate disconnector to achieve physical isolation of the line, enhancing safety and significantly reducing on-site installation and commissioning workload. The installation process is simple, requires minimal space, and ensures the effective use of the switchgear. The isolating blade assembly 23 within the Deep Fusion Pole 20 forms a clear isolation break, reducing maintenance risks.

[0050] like Figure 1 As shown, in one embodiment, the number of deep-melting poles 20 is three, and the three deep-melting poles 20 are arranged side by side on the fixing plate 13; the housing 1 is provided with a pendant 8, and both the deep-melting poles 20 and the sleeve assembly 7 are provided with coils, and the pendant 8 is used to pass through the lead wire of the coil; the outer wall of the isolation spindle 60 is fitted with a plurality of limiting sleeves 62, and the plurality of limiting sleeves 62 are used to limit the plurality of isolation blade assemblies 23; the circuit breaker spindle 56 is rotatably connected to the housing 1 through a first sealed bearing 12, and the isolation spindle 60 is rotatably connected to the housing 1 through a second sealed bearing 11, and the housing 1 is a sealed structure.

[0051] Specifically, this invention achieves physical isolation between phases through the arrangement of three deep-fusion poles 20, avoiding phase-to-phase faults. Optionally, the housing 1 is a welded sealing mechanism, with each deep-fusion pole 20 incorporating a coil for measuring the current passing through it, and the bushing assembly 7 incorporating a coil for measuring the voltage passing through it. The coil leads are led out through a connector 8 fixed to the housing 1. The isolation blade assembly 23 is connected in parallel at equal intervals via an isolation spindle 60 and a limiting sleeve 62. Optionally, a bearing 61 is provided between the limiting sleeve 62 and the isolation blade assembly 23. The circuit breaker operating mechanism 3 and the isolation operating mechanism 4 are designed independently with fewer parts, a compact and lightweight structure, convenient installation, and clear functions. The three-phase deep-fusion pole 20 achieves physical isolation between phases, reducing the risk of phase-to-phase short-circuit faults. The low-power coil integrated inside the deep-fusion pole 20 and the bushing assembly 7 can monitor the value and quality of current and voltage in real time, providing real-time data for the intelligent control of the power grid. The enclosure 1 adopts a fully sealed structure and achieves an environmentally friendly design under normal pressure, which can meet the requirements of harsh environments such as high altitude, high pollution, and high condensation, and completely avoids the use of high-pressure gas.

[0052] like Figure 11 , Figure 12 and Figure 14 As shown in one embodiment, the circuit breaker operating mechanism 3 includes a fixed seat 52 disposed on the fixed plate 13. A circuit breaker main shaft 56 is rotatably connected to one side of the fixed seat 52 on the inner wall of the housing 1. The fixed seat 52 is rotatably connected to the circuit breaker main shaft 56. A moving block 50 is provided at the end of the insulating pull rod 26 away from the flexible connection 27. A first crank arm 51 is sleeved on one side of the moving block 50 on the circuit breaker main shaft 56. The first crank arm 51 is slidably connected to the moving block 50. When the circuit breaker main shaft 56 drives the first crank arm 51 to swing, the first crank arm 51 is used to push the moving block 50 to move up and down.

[0053] Specifically, during operation, when opening or closing the circuit breaker is required, the main shaft 56 of the circuit breaker can be driven to reciprocate. The fixed seat 52 is used to support the main shaft 56 of the circuit breaker. The first crank arm 51 reciprocates with the main shaft 56 of the circuit breaker. When the first crank arm 51 swings, it can drive the moving block 50 to move up and down, thereby pushing the flexible connection 27 to contact or disconnect with the arc-extinguishing chamber 21, realizing the opening or closing operation. Optionally, two fixed seats 52 are provided below each deep-melting pole 20. Optionally, protrusions are symmetrically provided on both sides of the moving block 50, and an irregular groove is opened on the first crank arm 51. The irregular groove is slidably connected to the protrusion.

[0054] The circuit breaker operating mechanism 3 also includes a first plate 31 and a second plate 316. The first plate 31 is disposed on the side wall of the housing 1. The first plate 31 and the second plate 316 are connected by a plurality of auxiliary fixed shafts. A first fixed shaft 30 is rotatably connected between the first plate 31 and the second plate 316. One end of the first fixed shaft 30 extends to the outside of the second plate 316 and is connected to one end of the first spring 314 through a spring hanger 315.

[0055] A third crank arm 33 is rotatably connected between the first plate 31 and the second plate 316. A second spring 32 is movably connected to the third crank arm 33. A guide plate 317 is provided at the end of the second spring 32 away from the third crank arm 33. The guide plate 317 is fixedly connected to the first fixed shaft 30. One end of the circuit breaker main shaft 56 extends to the outside of the housing 1 and is provided with a first push block 53. A second push block 54 is rotatably connected to the first push block 53. A third push block 55 is rotatably connected to the second push block 54. The third push block 55 is fixedly connected to the third crank arm 33 and is coaxially arranged with the third crank arm 33.

[0056] A main shaft 311 is rotatably connected between the first plate 31 and the second plate 316. A clutch wheel 323 and a cam 325 are coaxially sleeved on the outer wall of the main shaft 311. One end of the main shaft 311 extends to the outside of the second plate 316 and is sleeved with a second crank arm 312. The other end of the first spring 314 is rotatably connected to the second crank arm 312 through a spring hanging plate 313. When the main shaft 311 drives the cam 325 to rotate, the cam 325 is used to push the third crank arm 33 to rotate. A roller 34 is rotatably connected to one side of the cam 325 on the outer wall of the third crank arm 33. Optionally, the cam 325 and the roller 34 are consistent in the thickness direction.

[0057] A power mechanism for driving the main shaft 311 to rotate is provided between the first plate 31 and the second plate 316;

[0058] The power mechanism includes a first gear 38 rotatably disposed between the first plate 31 and the second plate 316. One end of the first gear 38 extends to the outside of the second plate 316 and is provided with an energy storage shaft 310. A second gear 35 rotatably connected to the outer wall of the main shaft 311 is sleeved on one side of the clutch wheel 323. The first gear 38 meshes with the second gear 35. A through groove is opened on the clutch wheel 323. A clutch block 318 is provided on one side of the through groove on the outer wall of the second gear 35.

[0059] A limiting post 2 is provided on one side of the outer wall of the clutch wheel 323. A first adjusting shaft 324 and a first stop 319 are rotatably connected between the first plate 31 and the second plate 316. One end of the first stop 319 is located on one side of the limiting post 2, and the other end of the first stop 319 is located on one side of the first adjusting shaft 324. A first groove for passing through the first stop 319 is provided on the first adjusting shaft 324.

[0060] The outer wall of the first plate 31 is provided with a second stop 322 rotatably connected to one side of the third crank arm 33. The second stop 322 is elastically connected to the first plate 31 through a return spring. The outer wall of the first plate 31 is provided with a column and a second adjusting shaft 321 on both sides of the second stop 322. The second adjusting shaft 321 is rotatably connected to the first plate 31. The second adjusting shaft 321 has a second groove for passing through the second stop 322. The outer wall of the second stop 322 is provided with a third stop 320 rotatably connected to one side of the third crank arm 33. The third stop 320 is elastically connected to the second stop 322 through a first return spring. The third stop 320 is used to block the third crank arm 33.

[0061] The auxiliary fixed shaft includes a first shaft 36 and a second shaft 39. A fourth stop 37 is rotatably connected to the outer wall of the first shaft 36. The fourth stop 37 is elastically connected to the first shaft 36 via a second return spring (not shown in the figure). The fourth stop 37 is used to block the first gear 38. The second return spring cooperates with the fourth stop 37 to block the first gear 38, ensuring that the first gear 38 can only rotate in one direction, thus ensuring the stability of the operation.

[0062] The first stop 319 has a first inclined surface at the end near the limiting post 2, and the third stop 320 has a second inclined surface at the end near the third crank arm 33.

[0063] Specifically, in the initial state, the first spring 314 is in normal condition, the second crank arm 312 is closest to the first fixed shaft 30, and the first plate 31 is connected to the outer wall of the housing 1 through multiple connecting rods. First, the energy storage shaft 310 is connected to the external output mechanism, or it can be manually rotated. When the energy storage shaft 310 rotates, it drives the first gear 38 to rotate, which in turn drives the second gear 35 to rotate. The main shaft 311 supports the second gear 35. When the second gear 35 moves, it drives the clutch block 318 to move. The clutch block 318 is located inside the through groove, thereby pushing the clutch wheel 323 to rotate, allowing the second gear 35 to drive the clutch wheel 323 to rotate synchronously. At this time, the main shaft 311 rotates with the clutch wheel 323, and the cam 325 and... The second crank arm 312 rotates with the main shaft 311. When the second crank arm 312 rotates, it can drive the first spring 314 between the spring hanging block 315 and the spring hanging plate 313 to stretch. The limiting post 2 moves with the clutch wheel 323. As the clutch wheel 323 rotates, when the limiting post 2 moves to one side of the first stopper 319, the first stopper 319 blocks the limiting post 2, causing the main shaft 311 to stop rotating. At this time, the limiting post 2 contacts the first inclined surface, which can push the first stopper 319 to rotate. Due to the blocking of the first adjusting shaft 324, the position of the first stopper 319 remains in the original position. At this time, the device completes the energy storage preparation work. The first spring 314 is in the stretched energy storage state. In order to prevent the first spring 314 from driving the main shaft 311 to rotate back along the original path, the rotation angle of the first main shaft 311 is controlled to be slightly greater than 180°.

[0064] When closing the circuit is required, the first adjusting shaft 324 can be rotated by external force, thereby driving the first groove to rotate. When the first groove rotates to one side of the first stop 319, the first stop 319 can pass through the first adjusting shaft 324 through the first groove. At this time, the first adjusting shaft 324 no longer obstructs the first stop 319, and the limit post 2 can push the first stop 319 to rotate. The first stop 319 no longer obstructs the limit post 2. At this time, the elastic force of the first spring 314 can drive the main shaft 311 to continue rotating through the second crank arm 312. The main shaft 311 drives the clutch wheel 323 and the cam 325 to continue rotating until the first spring 314 drives the second crank arm 312 and the main shaft 311 to return to their original positions. At this time, the main shaft 311 has rotated one revolution. When the cam 325 moves to one side of the roller 34, it can push the third crank arm 33 to rotate, thereby making the first The second spring 32 is in a compressed energy storage state. When the third crank arm 33 moves to one side of the third stop 320, the third crank arm 33 first pushes the third stop 320 to rotate, causing the first return spring (not shown in the figure) to be compressed. After the third crank arm 33 passes the third stop 320, the first return spring pushes the third stop 320 back to its original position. At this time, the third stop 320 limits the third crank arm 33. Due to the contact between the third crank arm 33 and the second inclined surface, the second stop 322 can be pushed to rotate. Due to the obstruction of the second adjusting shaft 321, the positions of the second stop 322 and the third stop 320 remain in their original positions, completing the positioning work of the third crank arm 33. When the third crank arm 33 rotates, it can drive the third push block 55 to rotate. The third push block 55 drives the first push block 53 to rotate through the second push block 54, thereby driving the circuit breaker main shaft 56 to rotate, realizing the closing operation.

[0065] When the circuit breaker needs to be tripped, the second spring 32 is compressed, which pushes the third crank arm 33 to rotate. The second stop 322 and the third stop 320 act as a stop for the third crank arm 33. At this time, the second adjusting shaft 321 can be rotated by external force, thereby driving the second groove to rotate. When the second groove moves to one side of the second stop 322, the second stop 322 can pass through the second groove and rotate. The second adjusting shaft 321 no longer blocks the second stop 322. At this time, the compressed second spring 32 begins to push the third crank arm. When the third crank arm 33 rotates, since the second adjusting shaft 321 will not obstruct the second stop 322 at this time, the third crank arm 33 cooperates with the second inclined surface, and the second stop 322 can be pushed to rotate by the third stop 320. After the third crank arm 33 passes the third stop 320, the reset spring can drive the second stop 322 to return to its original position. When the third crank arm 33 rotates, it can drive the third push block 55 to rotate. The third push block 55 drives the first push block 53 to rotate through the second push block 54, thereby driving the circuit breaker main shaft 56 to rotate, realizing the tripping operation.

[0066] like Figure 7 As shown, in one embodiment, the isolation blade assembly 23 includes two isolation blades 212, and a plurality of pins 213 are slidably connected between the two isolation blades 212. Each end of the pin 213 is provided with a shielding cap 210. The two shielding caps 210 are respectively located on the outside of the two isolation blades 212. A compression spring 211 is provided between the shielding cap 210 and the adjacent isolation blade 212. The compression spring 211 is sleeved on the outside of the pin 213. A clamping plate 29 is provided between the two isolation blades 212.

[0067] Specifically, the compression spring 211 on one side of the shielding cap 210 pushes the two isolation blades 212 closer to each other, and the clamping plate 29 is placed between the two isolation blades 212, thereby completing the positioning of each isolation blade 212, ensuring the stability of the isolation blade assembly 23 structure, and facilitating its disassembly and maintenance, thus ensuring the practicality of the isolation blade assembly 23.

[0068] like Figures 8-10 and Figure 13 As shown, in one embodiment, the isolation operating mechanism 4 includes two third plates 40, one of which is located on the outside of the housing 1. An installation shaft 48 and multiple auxiliary shafts 41 are provided between the two third plates 40. A rotatably connected sliding crank arm 45 is provided between the two third plates 40. The isolation main shaft 60 is fixedly connected to the sliding crank arm 45. An operating crank arm 47 is rotatably connected to one side of the outer wall of the sliding crank arm 45. The operating crank arm 47 is coaxially arranged with the sliding crank arm 45. A rotatably connected first rod 43 is sleeved on the outer wall of the installation shaft 48. A slidably connected second rod 44 is provided on the side of the first rod 43 away from the installation shaft 48. An arc-shaped groove is formed on the sliding crank arm 45. One end of the second rod 44 is slidably connected to the arc-shaped groove. The same third return spring 42 is sleeved on the outer walls of the first rod 43 and the second rod 44.

[0069] One of the third plates 40 has a limiting block 46 on both sides of the slide rail crank arm 45 on its outer wall. The limiting block 46 is used to block the slide rail crank arm 45.

[0070] Specifically, when adjusting the isolating switch, the operating crank arm 47 can be rotated. The operating crank arm 47 can cause one end of the second rod 44 to slide in the arc-shaped groove of the sliding crank arm 45. The first rod 43 and the third return spring 42 move with the second rod 44. The third return spring 42 is compressed. As the movement continues, when one end of the second rod 44 moves to the other side of the arc-shaped groove, the third return spring 42 can push one end of the second rod 44 to move in the arc-shaped groove, so that one end of the second rod 44 moves to the end of the arc-shaped groove, thereby further driving the sliding crank arm 45 to rotate. The sliding crank arm 45 drives the isolating main shaft 60 to rotate, thereby completing the adjustment of the isolating switch. When the isolating work needs to be canceled, the operating crank arm 47 can be rotated in the opposite direction, thereby pushing one end of the second rod 44 to move in the opposite direction. The two limit blocks 46 are used to block the sliding crank arm 45, thereby limiting the rotation angle of the sliding crank arm 45 and the isolating main shaft 60, ensuring the stability of the isolating blade assembly 23 when it moves.

[0071] When the axis of the operating crank arm 47 is at an angle to a plane, the third return spring 42 stores maximum energy. When it continues to rotate, the third return spring 42 will quickly release energy, thereby quickly pushing the slide crank arm 45 to rotate clockwise until the slide crank arm 45 contacts the limit block 46 and stops, completing the closing operation of the disconnecting switch. In the reverse direction, the disconnecting operation of the disconnecting switch is completed.

[0072] The housing 1 of this invention is a welded structure, which can ensure the isolation between the conventional pressurized air inside the circuit breaker and the external air. The arrangement of the deep-fusion pole 20 can ensure that the short-circuit fault will not spread to a minimum and has excellent electrical insulation. The internal isolation switch and the internally sealed coil, namely the voltage sensor and current sensor, can greatly reduce the amount of on-site construction work.

[0073] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An outdoor, environmentally friendly circuit breaker with a built-in switch, characterized in that, Includes a housing (1), inside which is a deep melting pole (20), on which is a circuit breaker operating mechanism (3) and an isolation operating mechanism (4), and on which is a bushing assembly (7) on one side of the deep melting pole (20). The housing (1) is provided with a fixing plate (13), the deep melting pole (20) is set on the fixing plate (13), the deep melting pole (20) is provided with an arc-extinguishing chamber (21), the arc-extinguishing chamber (21) is provided with a wire outlet (22), the deep melting pole (20) is provided with a first conductive rod (24) and a second conductive rod (25), one end of the first conductive rod (24) is provided with a flexible connection (27) below the arc-extinguishing chamber (21), the fixing plate (13) is provided with a slidingly connected insulating pull rod (26) below the flexible connection (27), and the circuit breaker operating mechanism (3) is used to push the insulating pull rod (26) to move up and down; The housing (1) is provided with a rotatingly connected isolation spindle (60), the deep melting pole (20) is rotatably connected to the isolation spindle (60), the outer wall of the isolation spindle (60) is fitted with an isolation blade assembly (23) on one side of the deep melting pole (20), the isolation blade assembly (23) is used to connect the outlet seat (22) and the second conductive rod (25), and the isolation operating mechanism (4) is used to drive the isolation spindle (60) to rotate; The first conductive rod (24) and the second conductive rod (25) are respectively connected to the sleeve assembly (7) via connector (28); The circuit breaker operating mechanism (3) includes a fixed seat (52) disposed on the fixed plate (13). The inner wall of the housing (1) is provided with a circuit breaker main shaft (56) rotatably connected to the fixed seat (52). The fixed seat (52) is rotatably connected to the circuit breaker main shaft (56). The insulating pull rod (26) is provided with a moving block (50) at one end away from the flexible connection (27). The circuit breaker main shaft (56) is sleeved with a first crank arm (51) on one side of the moving block (50). The first crank arm (51) is slidably connected to the moving block (50). When the circuit breaker main shaft (56) drives the first crank arm (51) to swing, the first crank arm (51) is used to push the moving block (50) to move up and down. The circuit breaker operating mechanism (3) further includes a first plate (31) and a second plate (316). The first plate (31) is disposed on the side wall of the housing (1). The first plate (31) and the second plate (316) are connected by a plurality of auxiliary fixed shafts. A first fixed shaft (30) is rotatably connected between the first plate (31) and the second plate (316). One end of the first fixed shaft (30) extends to the outside of the second plate (316) and is connected to one end of the first spring (314) through a spring hanger (315). A third crank arm (33) is rotatably connected between the first plate (31) and the second plate (316). A second spring (32) is movably connected on the third crank arm (33). A guide plate (317) is provided at the end of the second spring (32) away from the third crank arm (33). The guide plate (317) is fixedly connected to the first fixed shaft (30). One end of the circuit breaker main shaft (56) extends to the outside of the housing (1) and is provided with a first push block (53). A second push block (54) is rotatably connected on the first push block (53). A third push block (55) is rotatably connected on the second push block (54). The third push block (55) is fixedly connected to the third crank arm (33). The third push block (55) and the third crank arm (33) are coaxially arranged. A main shaft (311) is rotatably connected between the first plate (31) and the second plate (316). A clutch wheel (323) and a cam (325) are coaxially sleeved on the outer wall of the main shaft (311). One end of the main shaft (311) extends to the outside of the second plate (316) and is sleeved with a second crank arm (312). The other end of the first spring (314) is rotatably connected to the second crank arm (312) through a spring hanger (313). When the main shaft (311) drives the cam (325) to rotate, the cam (325) is used to push the third crank arm (33) to rotate. A roller (34) is rotatably connected to the outer wall of the third crank arm (33) on one side of the cam (325). A power mechanism for driving the main shaft (311) to rotate is provided between the first plate (31) and the second plate (316).

2. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 1, characterized in that, The power mechanism includes a first gear (38) rotatably disposed between the first plate (31) and the second plate (316). One end of the first gear (38) extends to the outside of the second plate (316) and is provided with an energy storage shaft (310). The outer wall of the main shaft (311) is fitted with a second gear (35) rotatably connected to the clutch wheel (323). The first gear (38) meshes with the second gear (35). A through groove is provided on the clutch wheel (323). A clutch block (318) is provided on the outer wall of the second gear (35) on one side of the through groove. A limiting post (2) is provided on one side of the outer wall of the clutch wheel (323). A first adjusting shaft (324) and a first stop (319) are rotatably connected between the first plate (31) and the second plate (316). One end of the first stop (319) is located on one side of the limiting post (2), and the other end of the first stop (319) is located on one side of the first adjusting shaft (324). A first groove is provided on the first adjusting shaft (324) for the first stop (319) to pass through. The outer wall of the first plate (31) is provided with a second stop (322) rotatably connected to the third crank arm (33) on one side. The second stop (322) is elastically connected to the first plate (31) through a return spring. The outer wall of the first plate (31) is provided with a column and a second adjusting shaft (321) on both sides of the second stop (322). The second adjusting shaft (321) is rotatably connected to the first plate (31). The second adjusting shaft (321) is provided with a second groove for passing through the second stop (322). The outer wall of the second stop (322) is provided with a third stop (320) rotatably connected to the third crank arm (33) on one side. The third stop (320) is elastically connected to the second stop (322) through a first return spring. The third stop (320) is used to block the third crank arm (33).

3. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 2, characterized in that, The auxiliary fixed shaft includes a first shaft (36) and a second shaft (39). The outer wall of the first shaft (36) is fitted with a fourth stop (37) that is rotatably connected. The fourth stop (37) is elastically connected to the first shaft (36) through a second return spring. The fourth stop (37) is used to block the first gear (38). The first stop (319) has a first inclined surface at one end near the limiting post (2), and the third stop (320) has a second inclined surface at one end near the third crank arm (33).

4. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 1, characterized in that, The number of deep melting poles (20) is three, and the three deep melting poles (20) are arranged side by side on the fixing plate (13); The housing (1) is provided with a flight plug (8), and both the deep melting pole (20) and the sleeve assembly (7) are provided with coils. The flight plug (8) is used to pass through the lead wire of the coil. The outer wall of the isolation spindle (60) is fitted with a plurality of limiting sleeves (62), which are used to limit the plurality of isolation blade assemblies (23).

5. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 1, characterized in that, The circuit breaker main shaft (56) is rotatably connected to the housing (1) via a first sealed bearing (12), and the isolation main shaft (60) is rotatably connected to the housing (1) via a second sealed bearing (11). The housing (1) is a sealed structure.

6. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 1, characterized in that, The isolation blade assembly (23) includes two isolation blades (212), and a plurality of pins (213) are slidably connected between the two isolation blades (212). Each end of the pin (213) is provided with a shielding cap (210). The two shielding caps (210) are respectively located on the outside of the two isolation blades (212). A compression spring (211) is provided between the shielding cap (210) and the adjacent isolation blade (212). The compression spring (211) is sleeved on the outside of the pin (213). A clamping plate (29) is provided between the two isolation blades (212).

7. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 1, characterized in that, The isolation operating mechanism (4) includes two third plates (40), one of which is located on the outside of the housing (1). A mounting shaft (48) and multiple auxiliary shafts (41) are provided between the two third plates (40). A rotatably connected sliding crank arm (45) is provided between the two third plates (40). The isolation main shaft (60) is fixedly connected to the sliding crank arm (45). An operating crank arm (47) is rotatably connected to one side of the outer wall of the sliding crank arm (45). The operating crank arm (47) is coaxially arranged with the sliding crank arm (45). A rotatably connected first rod (43) is sleeved on the outer wall of the mounting shaft (48). A slidably connected second rod (44) is provided on the side of the first rod (43) away from the mounting shaft (48). An arc groove is provided on the sliding crank arm (45). One end of the second rod (44) is slidably connected to the arc groove. The same third return spring (42) is sleeved on the outer walls of the first rod (43) and the second rod (44).

8. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 7, characterized in that, One of the third plates (40) has a limiting block (46) on both sides of the slide crank arm (45) on its outer wall. The limiting block (46) is used to block the slide crank arm (45).

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