A direct-acting high-heat dissipation circuit breaker specially designed for SF6 high-current gas-filled cabinets

Abstract

The present invention provides a direct-acting, high-heat dissipation circuit breaker specifically designed for SF6 high-current gas-filled cabinets, belonging to the field of direct-acting circuit breakers. The circuit breaker comprises a connecting plate, a circuit breaker body, a mounting box, a refrigeration mechanism, a wind-generating mechanism, a cooling mechanism, and a ventilation and regulating mechanism. In this solution, a jet coil is provided to eject cold air, and the special shape of the conical jet nozzle allows the ejected cold air to enter the circuit breaker body. The conical jet nozzle is provided to discharge the cold air ejected from the jet coil and simultaneously convey the gas generated by the fan blade A, allowing the cold air to enter the circuit breaker body. When the cold air enters the circuit breaker body, it pushes the hot air to flow, so that the hot air inside the circuit breaker body is discharged through the exhaust hood, thereby improving the heat dissipation effect. This can solve the problem in the prior art that circuit breakers generate a large amount of heat when a large current passes through them, and the inability to quickly dissipate the large amount of heat can lead to overheating, performance degradation, and even damage to the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a direct-acting high-heat dissipation circuit breaker specially used for SF6 high-current gas-filled cabinets. Background Art

[0002] With the increasing demand for power in power systems and the growing complexity of power networks, the requirements for high-voltage switchgear are becoming increasingly stringent, especially under demanding operating conditions such as high voltage, high current, and long-duration loads. Traditional switchgear is prone to overheating and incomplete arc extinguishing under high current and high load conditions. This not only affects equipment reliability but can also cause power system failures or outages. Therefore, developing circuit breakers with high reliability, excellent heat dissipation, and long life has become a key technology for improving power system stability and safety.

[0003] The authorization publication number "CN216849769U" records "a vacuum circuit breaker, comprising: a shell, a permanent magnet mechanism is provided at one end of the shell, a vacuum interrupter assembly is provided at the other end of the shell, and a static contact is provided on the vacuum interrupter assembly; a transmission assembly, one end of the transmission assembly is connected to the permanent magnet mechanism, and the other end of the transmission assembly is provided with a moving contact capable of contacting the static contact, the permanent magnet mechanism is used to drive the transmission assembly to move in a vertical direction, and an annular groove is provided on the transmission assembly; and a synchronous opening mechanism, the synchronous opening mechanism includes a synchronous shaft and a synchronous contact arm assembly, one end of the synchronous contact arm assembly is connected to the synchronous shaft, and the other end of the synchronous contact arm assembly is connected to the annular groove. When the synchronous shaft is rotated, the synchronous contact arm assembly drives the transmission assembly to move in the vertical direction through the annular groove, thereby improving the accuracy of opening and closing of the circuit breaker and reducing the time of opening and closing, and can realize manual opening, with a long service life."

[0004] The above patent can realize manual tripping and has a long service life, but the above patent will generate a lot of heat when a large current passes through it. The large amount of heat cannot be dissipated quickly, which will cause the equipment to overheat, performance degradation or even damage. In particular, the direct-acting circuit breaker has higher requirements for high heat dissipation, and the problem is prominent. Summary of the Invention

[0005] The purpose of the present invention is to provide a direct-acting high-heat dissipation circuit breaker specially designed for SF6 high-current inflatable cabinets, aiming to solve the problem in the prior art that circuit breakers generate a large amount of heat when large current passes through, and the large amount of heat cannot be quickly dissipated, resulting in equipment overheating, performance degradation or even damage.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A direct-acting high-heat dissipation circuit breaker specially designed for SF6 high-current gas-filled cabinets, comprising:

[0008] The connecting plate ejects cold air;

[0009] The circuit breaker body cold air ejection is provided with three, and the three circuit breaker body cold air ejection ejections are all provided on one side end of the connection plate cold air ejection, and the three circuit breaker body cold air ejection ejections are evenly distributed;

[0010] The cold air outlet of the installation box is fixedly connected to one end of the cold air outlet of the connection plate;

[0011] The refrigeration mechanism is located on the cold air outlet of the installation box;

[0012] The air-generating mechanism is installed on the cold air outlet of the connection plate, the cold air outlet of the installation box and the cold air outlet of the three circuit breaker bodies;

[0013] The cooling mechanism is installed on the cold air ejection and wind generating mechanism of the installation box;

[0014] The ventilation adjustment mechanism is arranged on the cold air outlet of the connecting plate and the cold air outlet of the installation box.

[0015] As a preferred solution of the present invention, the refrigeration mechanism includes a refrigerant liquid cold air outlet and a copper coil cold air outlet. The refrigerant liquid cold air outlet is fixedly connected to one side end of the installation box cold air outlet, and the copper coil cold air outlet is arranged in the installation box cold air outlet, and both ends of the copper coil cold air outlet pass through the installation box cold air outlet and are fixedly connected to the refrigerant liquid cold air outlet.

[0016] As a preferred solution of the present invention, the air generating mechanism includes:

[0017] Wind shield components are installed on the cold air outlet of the connection plate, the cold air outlet of the installation box and the cold air outlets of the three circuit breaker bodies;

[0018] The first wind generating components are provided in three groups, and the three groups of the first wind generating components are all provided on the wind shielding component;

[0019] The second air generating component is arranged on the cold air ejection and wind shielding component of the installation box, and the second air generating component is connected with the three groups of the first air generating components.

[0020] As a preferred solution of the present invention, the windshield component includes an exhaust hood cold air outlet, a connecting rod sleeve cold air outlet, a conical jet tube cold air outlet and a partition cold air outlet. The exhaust hood cold air outlet is fixedly connected to one side end of the connecting plate cold air outlet, and the exhaust hood cold air outlet is fixedly connected to the installation box cold air outlet. There are three connecting rod sleeve cold air outlets, and the three connecting rod sleeve cold air outlets are fixedly connected to one side end of the exhaust hood cold air outlet, and the three connecting rod sleeve cold air outlets all penetrate the exhaust hood cold air outlet. Outlet and connecting plate cold air outlet, each connecting rod sleeve cold air outlet is movably plugged into each circuit breaker body cold air outlet, three conical jet tube cold air outlets are provided, each conical jet tube cold air outlet is fixedly connected to one end of each connecting rod sleeve cold air outlet, and each conical jet tube cold air outlet is provided in each circuit breaker body cold air outlet, two partition plate cold air outlets are provided, and the two partition plate cold air outlets are fixedly connected between the connecting plate cold air outlet and the exhaust hood cold air outlet.

[0021] As a preferred solution of the present invention, each group of the first air-generating components includes an installation shell cold air ejection, an installation sleeve cold air ejection, a gear C cold air ejection, a fan blade A cold air ejection and a ventilation pipe cold air ejection, the installation shell cold air ejection is fixedly connected to the circumferential surface of the connecting rod sleeve cold air ejection, and the installation shell cold air ejection is located in the installation box cold air ejection, a plurality of ventilation pipe cold air ejections are provided, and the plurality of ventilation pipe cold air ejections are fixedly connected between the installation shell cold air ejection and the conical jet tube cold air ejection, and the plurality of ventilation pipe cold air ejections all pass through the exhaust hood cold air ejection, the installation sleeve cold air ejection is rotatably connected to the circumferential surface of the connecting rod sleeve cold air ejection, and the installation sleeve cold air ejection is arranged in the installation shell cold air ejection, the fan blade A cold air ejection is fixedly connected to the circumferential surface of the installation sleeve cold air ejection, and the gear C cold air ejection is fixedly connected to the circumferential surface of the installation sleeve cold air ejection.

[0022] As a preferred solution of the present invention, the second air-generating component includes a rotating shaft A cold air ejection, a horizontal plate cold air ejection, a bevel gear cold air ejection, a rotating shaft B cold air ejection, a drive motor cold air ejection, a gear A cold air ejection, a gear B cold air ejection and a fan B cold air ejection. There are two rotating shaft B cold air ejections, and the two rotating shaft B cold air ejections are rotatably connected to one side end of the exhaust hood cold air ejection, and the two rotating shaft B cold air ejections are symmetrically arranged. There are two gear B cold air ejections, each of the gear B cold air ejections is fixedly connected to the circumferential surface of each rotating shaft B cold air ejection, and each gear B cold air ejection is meshed with every two gears C cold air ejections. The drive motor cold air ejection is fixedly connected to one end of the exhaust hood cold air ejection, the gear A cold air ejection is fixedly connected to the output end of the drive motor cold air ejection, and the gear A cold air ejection is meshed with one of the gears B cold air ejections. The horizontal plate cold air outlet is fixedly connected between the side walls of the installation box cold air outlet, and the rotating shaft A cold air outlet is provided with two, each of the rotating shaft A cold air outlet is rotatably connected between the horizontal plate cold air outlet and the inner wall of one side of the installation box cold air outlet, and each rotating shaft A cold air outlet rotates through the horizontal plate cold air outlet and extends to the outside of the horizontal plate cold air outlet, and the fan B cold air outlet is provided with two, each of the installation shell cold air outlet is fixedly connected to the circumferential surface of each rotating shaft A cold air outlet, and each fan B cold air outlet is arranged on the upper side of the copper coil cold air outlet, and the conical gear cold air outlet is provided with four, two of which are fixedly connected to the circumferential surfaces of the two rotating shaft B cold air outlets, and the remaining two bevel gear cold air outlets are fixedly connected to the circumferential surfaces of the two rotating shaft A cold air outlets, and each two of the conical gear cold air outlets are meshed with each other.

[0023] As a preferred solution of the present invention, the cooling mechanism includes:

[0024] The first exhaust component is provided on the cold air outlet of the connection plate, the cold air outlet of the installation box and the cold air outlet of the exhaust hood;

[0025] The second exhaust mechanism is provided with three groups, and each group of the second exhaust mechanism is provided on the cold air outlet of the installation box, the cold air outlet of the exhaust hood and the cold air outlet of the conical jet tube, and each group of the second exhaust mechanism is connected to the first exhaust component.

[0026] As a preferred solution of the present invention, the first exhaust component includes an L-shaped movable plate cold air ejection, a vertical plate cold air ejection, a refrigeration cool air ejection, an air supply pipe A cold air ejection, a U-shaped jet pipe cold air ejection, an installation pipe cold air ejection, a guide rod cold air ejection and an electric telescopic rod cold air ejection, and the guide rod cold air ejection is provided with two, and the two guide rod cold air ejections are movably plugged into one side end of the exhaust hood cold air ejection, and the two guide rod cold air ejections are movably penetrated through the exhaust hood cold air ejection and the connecting plate cold air ejection and extend to the outside of the connecting plate cold air ejection, the L-shaped movable plate cold air ejection is fixedly connected to the same side end of the two guide rod cold air ejections, the electric telescopic rod cold air ejection is fixedly connected to one side end of the exhaust hood cold air ejection, and the extended end of the electric telescopic rod cold air ejection movably penetrates the exhaust hood cold air ejection and the connecting plate cold air ejection and is connected to the outside of the connecting plate cold air ejection. The L-shaped movable plate cold air outlet is fixedly connected, and there are two vertical plate cold air outlets. The two vertical plate cold air outlets are fixedly connected to one side end of the L-shaped movable plate cold air outlet, and the two vertical plate cold air outlets are symmetrically arranged. The mounting pipe cold air outlet is fixedly connected between the two vertical plate cold air outlets. There are three U-shaped jet pipe cold air outlets, and the three U-shaped jet pipe cold air outlets are fixedly connected to the circumferential surface of the mounting pipe cold air outlet. Each of the U-shaped jet pipe cold air outlets is movably mounted on the cold air outlet of each circuit breaker body. The cold air outlet of the refrigerant is fixedly connected to one end of the cold air outlet of the mounting box. There are two air supply pipe A cold air outlets, and one end of each air supply pipe A cold air outlet is fixedly connected to the mounting pipe cold air outlet, and the other end of each air supply pipe A cold air outlet is fixedly connected to the cold air outlet of the refrigerant.

[0027] As a preferred solution of the present invention, each group of the second exhaust mechanism includes an air pipe B cold air outlet and a jet coil cold air outlet, one end of the exhaust hood cold air outlet is fixedly connected to the cold air outlet of the refrigerator, and the other end of the air pipe B cold air outlet passes through the installation box cold air outlet, the exhaust hood cold air outlet and the conical jet tube cold air outlet and extends to the inner side of the conical jet tube cold air outlet, the jet coil cold air outlet is fixedly connected to one end of the air pipe B cold air outlet, and the jet coil cold air outlet is arranged in the conical jet tube cold air outlet.

[0028] As a preferred solution of the present invention, the ventilation adjustment mechanism includes a heat dissipation hole cold air ejection, a heat dissipation control panel cold air ejection, a gear D cold air ejection, a shaft C cold air ejection, a forward and reverse motor cold air ejection and a gear E cold air ejection, the heat dissipation hole cold air ejection is opened at the bottom of the installation box cold air ejection, the shaft C cold air ejection is rotatably connected to the lower inner wall of the installation box cold air ejection, and one end of the shaft C cold air ejection rotates through the installation box cold air ejection and extends to the outside of the installation box cold air ejection, the heat dissipation control panel cold air ejection The air outlet is fixedly connected to the circumferential surface of the cold air outlet of the rotating shaft C, the gear D cold air outlet is fixedly connected to the circumferential surface of the cold air outlet of the heat dissipation control panel, the forward and reverse motor cold air outlet is fixedly connected to the lower inner wall of the cold air outlet of the installation box, and the output end of the forward and reverse motor cold air outlet rotates through the cold air outlet of the installation box and extends to the outside of the cold air outlet of the installation box, the gear E cold air outlet is fixedly connected to the output end of the forward and reverse motor cold air outlet, and the gear E cold air outlet and the gear D cold air outlet are engaged with each other.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. In this solution, the cold air generated by the cold air ejection of the refrigeration unit can be transported into the cold air ejection outlet of the jet coil through the cold air ejection arrangement of the air delivery pipe B. The cold air can be ejected through the cold air ejection arrangement of the jet coil. The special shape of the cold air ejection outlet of the conical jet cylinder allows the ejected cold air to enter the cold air ejection outlet of the circuit breaker body. The conical jet cylinder cold air ejection arrangement is used to discharge the cold air ejected from the cold air ejection outlet of the jet coil, while simultaneously transporting the gas generated by the cold air ejection of the fan blade A, allowing the cold air to enter the cold air ejection outlet of the circuit breaker body. When the cold air enters the cold air ejection outlet of the circuit breaker body, it pushes the hot air to flow, so that the hot air inside the cold air ejection outlet of the circuit breaker body is discharged through the cold air ejection outlet of the exhaust hood, thereby improving the heat dissipation effect.

[0031] 2. In this solution, the rotation of the cold air ejection by the gear C can drive the rotation of the cold air ejection of the mounting sleeve, and the rotation of the cold air ejection by the mounting sleeve can drive the rotation of the cold air ejection of the fan blade A. The rotation of the cold air ejection by the fan blade A can generate wind. The setting of the cold air ejection by the mounting shell can prevent the wind generated by the cold air ejection of the fan blade A from drifting around, so that the wind generated by the cold air ejection of the fan blade A enters the cold air ejection of the ventilation pipe, and is transported to the cold air ejection of the conical jet tube through the cold air ejection of the ventilation pipe, and the cold air ejected by the jet coil cools the interior of the cold air ejection of the circuit breaker body to dissipate heat and cool down.

[0032] 3. In this solution, the output end of the cold air ejection of the driving motor rotates to drive the cold air ejection of gear A to rotate, and the cold air ejection of gear A rotates to drive the cold air ejection of gear B to rotate, and the cold air ejection of gear B rotates to drive the two gears C to rotate simultaneously, and the cold air ejection of gear B rotates to drive the cold air ejection of shaft B to rotate, and the cold air ejection of shaft B rotates to drive the bevel gear cold air ejection. Since the two bevel gear cold air ejections are engaged with each other, the two bevel gear cold air ejections rotate simultaneously, and the cold air ejection of bevel gears rotates to drive the cold air ejection of shaft A to rotate, and the cold air ejection of shaft A drives the cold air ejection of fan B to rotate, and the cold air ejection of fan B can generate wind.

[0033] 4. In this solution, cold liquid can be generated by the cold air spray setting of the refrigerant, and the cold air spray setting of the copper coil is used to transport the cold liquid generated by the cold air spray of the refrigerant. The cold liquid flows in the cold air spray of the copper coil and cooperates with the wind generated by the cold air spray of fan B to generate cold air, thereby reducing the temperature inside the cold air spray of the installation box, thereby improving the heat dissipation effect.

[0034] 5. In this solution, the extension of the electric telescopic rod cold air ejection can drive the movement of the L-shaped movable plate cold air ejection, and the movement of the L-shaped movable plate cold air ejection can drive the movement of the guide rod cold air ejection, and the movement of the L-shaped movable plate cold air ejection can drive the movement of the mounting pipe cold air ejection, and the movement of the mounting pipe cold air ejection can drive the movement of the three U-shaped jet pipes cold air ejection, so that the U-shaped jet pipe cold air ejection is sleeved on the circuit breaker body cold air ejection and moves at the same time. The arrangement of the cold air ejection of the cold air ejection can generate cold air, and the cold air generated by the cold air ejection of the cold air ejection can be transported into the U-shaped jet pipe cold air ejection through the arrangement of the air transmission pipe A and the cold air ejection of the mounting pipe. The cold air ejection through the U-shaped jet pipe can sweep the surface of the circuit breaker body cold air ejection to prevent dust accumulation on the surface of the circuit breaker body cold air ejection and affect heat dissipation, and the cold air blowing on the surface of the circuit breaker body cold air ejection can cool the outside of the circuit breaker body cold air ejection.

[0035] 6. In this scheme, the setting of the cold air ejection through the heat dissipation hole is used to discharge the gas inside the cold air ejection of the installation box, and the setting of the cold air ejection through the heat dissipation control board is used to cover the cold air ejection of the heat dissipation hole. The rotation of the output end of the cold air ejection of the forward and reverse motor can drive the cold air ejection of gear E to rotate, and the rotation of the cold air ejection through gear E can drive the cold air ejection of gear D to rotate. The rotation of the cold air ejection through gear D drives the cold air ejection of the heat dissipation control board to rotate. The rotation of the cold air ejection through the heat dissipation control board can block the cold air ejection of the heat dissipation hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 2 This is a schematic structural diagram of the cold air ejection portion of the conical air ejector of the present invention;

[0039] Figure 3 is a cross-sectional view of the present invention;

[0040] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0041] Figure 5 This is a cross-sectional view of the cold air outlet of the installation box of the present invention;

[0042] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0043] Figure 7 This is a schematic structural diagram of the cold air outlet of the jet coil of the present invention;

[0044] Figure 8 A cross-sectional view showing the cold air ejection from another perspective of the installation box of the present invention;

[0045] Figure 9 For the present invention Figure 8 Enlarged view of point C in the middle;

[0046] Figure 10 It is a schematic structural diagram of the cold air outlet of the exhaust hood of the present invention.

[0047] Figure: 1. Connecting plate; 2. L-shaped movable plate; 3. Vertical plate; 4. Circuit breaker body; 5. Air cooler; 6. Mounting box; 7. Refrigerant container; 8. Gas pipe A; 9. U-shaped jet nozzle; 10. Mounting pipe; 11. Copper coil; 12. Rotating shaft A; 13. Horizontal plate; 14. Bevel gear; 15. Rotating shaft B; 16. Heat dissipation hole; 17. Guide rod; 18. Heat dissipation control board; 19. Mounting case; 20. , drive motor; 21. Gear A; 22. Gear B; 23. Exhaust hood; 24. Mounting sleeve; 25. Gear C; 26. Fan blade A; 27. Connecting rod sleeve; 28. Ventilation duct; 29. ​​Fan B; 30. Gear D; 31. Rotating shaft C; 32. Air supply pipe B; 33. Conical jet tube; 34. Jet coil; 35. Electric telescopic rod; 36. Forward and reverse motor; 37. Gear E; 38. Partition. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] Example 1

[0050] See also Figures 1-10 , the technical solutions provided in this embodiment are as follows:

[0051] A direct-acting high-heat dissipation circuit breaker specially designed for SF6 high-current gas-filled cabinets consists of a connecting plate 1, a circuit breaker body 4, an installation box 6, a refrigeration mechanism, a wind-generating mechanism, a cooling mechanism, and a ventilation adjustment mechanism. Three circuit breaker bodies 4 are provided, and the three circuit breaker bodies 4 are all arranged at one side end of the connecting plate 1. The three circuit breaker bodies 4 are evenly distributed, and the installation box 6 is fixedly connected to one side end of the connecting plate 1.

[0052] In a specific embodiment of the present invention, three circuit breaker bodies 4 are all installed on one side end of the connecting plate 1 .

[0053] Specifically, the refrigeration mechanism is arranged on the installation box 6, and the refrigeration mechanism includes a refrigerant 7 and a copper coil 11. The refrigerant 7 is fixedly connected to one side end of the installation box 6, and the copper coil 11 is arranged in the installation box 6, and both ends of the copper coil 11 pass through the installation box 6 and are fixedly connected to the refrigerant 7.

[0054] In a specific embodiment of the present invention, cold liquid can be generated by the setting of the refrigerant 7, and the setting of the copper coil 11 is used to transport the cold liquid generated by the refrigerant 7. The cold liquid flows in the copper coil 11 and cooperates with the wind generated by the fan B29 to generate cold wind, thereby reducing the temperature inside the installation box 6 and improving the heat dissipation effect.

[0055] Specifically, the windshield component is provided on the connecting plate 1, the mounting box 6 and the three circuit breaker bodies 4. The windshield component includes an exhaust hood 23, a connecting rod sleeve 27, a conical jet tube 33 and a partition 38. The exhaust hood 23 is fixedly connected to one side end of the connecting plate 1, and the exhaust hood 23 is fixedly connected to the mounting box 6. There are three connecting rod sleeves 27, and the three connecting rod sleeves 27 are all fixedly connected to one side end of the exhaust hood 23. The three connecting rod sleeves 27 all pass through the exhaust hood 23 and the connecting plate 1. Each connecting rod sleeve 27 is movably inserted into each circuit breaker body 4. There are three conical jet tubes 33, and each conical jet tube 33 is fixedly connected to one end of each connecting rod sleeve 27. Each conical jet tube 33 is provided in each circuit breaker body 4. There are two partitions 38, and the two partitions 38 are fixedly connected between the connecting plate 1 and the exhaust hood 23.

[0056] In a specific embodiment of the present invention, the connecting rod sleeve 27 is provided for installing the connecting rod, and the conical jet nozzle 33 is provided for exhausting the cold air ejected from the jet coil 34, while at the same time conveying the gas generated by the fan blade A26, so that the cold air enters the circuit breaker body 4. When the cold air enters the circuit breaker body 4, it pushes the hot air to flow, so that the hot air inside the circuit breaker body 4 is discharged through the exhaust hood 23, thereby improving the heat dissipation effect.

[0057] Specifically, three groups of first wind-generating components are provided, and the three groups of first wind-generating components are all provided on the wind-shielding component. Each group of first wind-generating components includes a mounting shell 19, a mounting sleeve 24, a gear C25, a fan blade A26 and a ventilation pipe 28. The mounting shell 19 is fixedly connected to the circumferential surface of the connecting rod sleeve 27, and the mounting shell 19 is located in the mounting box 6. There are multiple ventilation pipes 28, and the multiple ventilation pipes 28 are all fixedly connected between the mounting shell 19 and the conical jet cylinder 33, and the multiple ventilation pipes 28 all pass through the exhaust hood 23. The mounting sleeve 24 is rotatably connected to the circumferential surface of the connecting rod sleeve 27, and the mounting sleeve 24 is provided in the mounting shell 19. The fan blade A26 is fixedly connected to the circumferential surface of the mounting sleeve 24, and the gear C25 is fixedly connected to the circumferential surface of the mounting sleeve 24.

[0058] In a specific embodiment of the present invention, the rotation of the gear C25 can drive the rotation of the mounting sleeve 24, and the rotation of the mounting sleeve 24 can drive the rotation of the fan blade A26. The rotation of the fan blade A26 can generate wind. The setting of the mounting shell 19 can prevent the wind generated by the fan blade A26 from drifting around, so that the wind generated by the fan blade A26 enters the ventilation pipe 28, and is transported to the conical jet cylinder 33 through the ventilation pipe 28. The wind cooperates with the cold air ejected from the jet coil 34 to dissipate heat and cool the interior of the circuit breaker body 4.

[0059] Specifically, the second wind-generating component is provided on the installation box 6 and the wind shield component, and the second wind-generating component is connected to the three groups of first wind-generating components. The second wind-generating component includes a rotating shaft A12, a horizontal plate 13, a bevel gear 14, a rotating shaft B15, a drive motor 20, a gear A21, a gear B22 and a fan B29. There are two rotating shafts B15, and the two rotating shafts B15 are rotatably connected to one side end of the exhaust cover 23, and the two rotating shafts B15 are symmetrically arranged. There are two gears B22, each gear B22 is fixedly connected to the circumferential surface of each rotating shaft B15, and each gear B22 is meshed with every two gears C25. The drive motor 20 is fixedly connected to one end of the exhaust cover 23, the gear A21 is fixedly connected to the output end of the drive motor 20, and the gear A21 It is meshed with one of the gears B22, the horizontal plate 13 is fixedly connected between the side walls of the mounting box 6, two rotating shafts A12 are provided, each rotating shaft A12 is rotatably connected between the horizontal plate 13 and the inner wall of one side of the mounting box 6, and each rotating shaft A12 rotates through the horizontal plate 13 and extends to the outside of the horizontal plate 13, two fans B29 are provided, each mounting shell 19 is fixedly connected to the circumferential surface of each rotating shaft A12, and each fan B29 is arranged on the upper side of the copper coil 11, four bevel gears 14 are provided, two of which are fixedly connected to the circumferential surfaces of the two rotating shafts B15, and the remaining two bevel gears 14 are fixedly connected to the circumferential surfaces of the two rotating shafts A12, and every two bevel gears 14 are meshed with each other.

[0060] In a specific embodiment of the present invention, the output end of the drive motor 20 is driven to rotate the gear A21, and the gear B22 is driven to rotate by the rotation of the gear A21. The two gears C25 are driven to rotate simultaneously by the rotation of the gear B22. The rotating shaft B15 is driven to rotate by the rotation of the gear B22. The bevel gear 14 is driven to rotate by the rotation of the rotating shaft B15. Since the two bevel gears 14 are engaged with each other, the two bevel gears 14 rotate simultaneously. The rotation of the bevel gear 14 drives the rotating shaft A12 to rotate. The rotation of the rotating shaft A12 drives the fan B29 to rotate. The rotation of the fan B29 can generate wind.

[0061] Specifically, the first exhaust component is provided on the connecting plate 1, the installation box 6 and the exhaust hood 23. The first exhaust component includes an L-shaped movable plate 2, a vertical plate 3, a refrigerant 5, an air delivery pipe A8, a U-shaped jet pipe 9, a mounting pipe 10, a guide rod 17 and an electric telescopic rod 35. There are two guide rods 17, both of which are movably plugged into one side end of the exhaust hood 23, and both guide rods 17 are movable through the exhaust hood 23 and the connecting plate 1 and extend to the outside of the connecting plate 1. The L-shaped movable plate 2 is fixedly connected to the same side end of the two guide rods 17, the electric telescopic rod 35 is fixedly connected to one side end of the exhaust hood 23, and the extended end of the electric telescopic rod 35 is movable through The exhaust hood 23 and the connecting plate 1 are fixedly connected to the L-shaped movable plate 2. Two vertical plates 3 are provided. Both vertical plates 3 are fixedly connected to one side end of the L-shaped movable plate 2, and the two vertical plates 3 are symmetrically arranged. The mounting pipe 10 is fixedly connected between the two vertical plates 3. Three U-shaped jet pipes 9 are provided. The three U-shaped jet pipes 9 are fixedly connected to the circumferential surface of the mounting pipe 10. Each U-shaped jet pipe 9 is movably mounted on each circuit breaker body 4. The refrigerant 5 is fixedly connected to one end of the mounting box 6. Two gas pipes A8 are provided. One end of each gas pipe A8 is fixedly connected to the mounting pipe 10, and the other end of each gas pipe A8 is fixedly connected to the refrigerant 5.

[0062] In a specific embodiment of the present invention, the extension of the electric telescopic rod 35 can drive the L-shaped movable plate 2 to move, and the movement of the L-shaped movable plate 2 can drive the guide rod 17 to move. The movement of the L-shaped movable plate 2 can drive the installation tube 10 to move, and the movement of the installation tube 10 can drive the three U-shaped jet tubes 9 to move, so that the U-shaped jet tubes 9 are sleeved on the circuit breaker body 4 and move at the same time. The setting of the refrigerant 5 can generate cold air, and the setting of the air supply pipe A8 and the installation tube 10 can transport the cold air generated by the refrigerant 5 into the U-shaped jet tube 9. The air ejected from the U-shaped jet tube 9 can sweep the surface of the circuit breaker body 4 to prevent dust from accumulating on the surface of the circuit breaker body 4 and affecting heat dissipation, and the cold air blowing on the surface of the circuit breaker body 4 can cool the outside of the circuit breaker body 4.

[0063] Specifically, three groups of second exhaust mechanisms are provided, each group of second exhaust mechanisms is provided on the installation box 6, the exhaust hood 23 and the conical jet tube 33, and each group of second exhaust mechanisms is connected to the first exhaust component, and each group of second exhaust mechanisms includes an air pipe B32 and a jet coil 34. One end of the exhaust hood 23 is fixedly connected to the refrigerant 5, and the other end of the air pipe B32 passes through the installation box 6, the exhaust hood 23 and the conical jet tube 33 and extends to the inner side of the conical jet tube 33. The jet coil 34 is fixedly connected to one end of the air pipe B32, and the jet coil 34 is provided in the conical jet tube 33.

[0064] In a specific embodiment of the present invention, the cold air generated by the refrigerant 5 can be transported into the jet coil 34 through the setting of the air delivery pipe B32. The cold air can be ejected through the setting of the jet coil 34. The special shape of the conical jet cylinder 33 allows the ejected cold air to enter the circuit breaker body 4.

[0065] Specifically, the ventilation adjustment mechanism is provided on the connecting plate 1 and the installation box 6. The ventilation adjustment mechanism includes a heat dissipation hole 16, a heat dissipation control plate 18, a gear D30, a rotating shaft C31, a forward and reverse motor 36 and a gear E37. The heat dissipation hole 16 is opened at the bottom of the installation box 6. The rotating shaft C31 is rotatably connected to the lower inner wall of the installation box 6, and one end of the rotating shaft C31 rotates through the installation box 6 and extends to the outside of the installation box 6. The heat dissipation control plate 18 is fixedly connected to the circumferential surface of the rotating shaft C31. The gear D30 is fixedly connected to the circumferential surface of the heat dissipation control plate 18. The forward and reverse motor 36 is fixedly connected to the lower inner wall of the installation box 6, and the output end of the forward and reverse motor 36 rotates through the installation box 6 and extends to the outside of the installation box 6. The gear E37 is fixedly connected to the output end of the forward and reverse motor 36, and the gear E37 and the gear D30 are engaged with each other.

[0066] In a specific embodiment of the present invention, the heat dissipation hole 16 is provided to discharge the gas inside the installation box 6, and the heat dissipation control plate 18 is provided to cover the heat dissipation hole 16. The output end of the forward and reverse motor 36 is rotated to drive the gear E37 to rotate, and the gear E37 is rotated to drive the gear D30 to rotate. The gear D30 is rotated to drive the heat dissipation control plate 18 to rotate, and the heat dissipation control plate 18 is rotated to block the heat dissipation hole 16.

[0067] Specifically, the installation box 6 is provided with a contact system, an arc extinguishing structure, a transmission mechanism and a tripping mechanism.

[0068] In a specific embodiment of the present invention, the operating principle of a direct-acting circuit breaker is based on the interaction between electromagnetic force and spring force. When the circuit is operating normally, the circuit breaker is in the closed state, and current flows through the circuit breaker contacts. When a short circuit, overload, or other abnormal condition occurs, the circuit breaker's internal protection device detects the abnormal current flow and triggers the circuit breaker's trip mechanism, rapidly shutting off the power supply. When a short circuit occurs, the magnetic field generated by the high current overcomes the reaction spring, causing the trip mechanism to actuate and instantly trip the switch. This is achieved by an electromagnetic trip unit. When a short circuit or severe overload occurs, the electromagnetic force of the electromagnetic trip unit increases, attracting the armature, which then strikes the lever upward, opening the main contacts. When the circuit is overloaded, the overcurrent flows through the heating element, causing the bimetallic strip to bend due to heat, pushing the mechanism to open, thereby opening the main contacts. This is achieved by a thermal trip unit. When the circuit is overloaded, the bimetallic strip deforms to a certain degree, actuating the mechanism to provide overload protection. Some circuit breakers have electronic protection functions, using transformers to measure the current in each phase and compare it with a set value. When the current is abnormal, the microprocessor sends a signal to enable the electronic release to drive the operating mechanism to operate and achieve protection.

[0069] The working principle of a direct-acting high-heat dissipation circuit breaker specially designed for SF6 high-current gas-filled cabinets provided by the present invention is as follows:

[0070] The output end of the drive motor 20 rotates to drive the gear A21, which in turn drives the gear B22, which in turn drives the two gears C25 to rotate simultaneously, which in turn drives the rotating shaft B15, which in turn drives the bevel gear 14 to rotate. Since the two bevel gears 14 are meshed with each other, the two bevel gears 14 rotate simultaneously, which in turn drives the rotating shaft A12, which in turn drives the fan B29 to rotate, and the rotation of the fan B29 can generate wind.

[0071] The refrigerant 7 can generate cold liquid, and the copper coil 11 is used to transport the cold liquid generated by the refrigerant 7. The cold liquid flows in the copper coil 11 and cooperates with the wind generated by the fan B29 to generate cold air.

[0072] The rotation of the gear C25 drives the mounting sleeve 24 to rotate, which in turn drives the fan blades A26 to rotate. The rotation of the fan blades A26 generates wind. The installation housing 19 prevents the wind generated by the fan blades A26 from drifting around, allowing the wind generated by the fan blades A26 to enter the ventilation pipe 28, and then be transported to the conical air jet cylinder 33 through the ventilation pipe 28. The wind cooperates with the cold air ejected from the air jet coil 34 to dissipate heat and cool the interior of the circuit breaker body 4.

[0073] The connecting rod sleeve 27 is provided for mounting the connecting rod, and the conical air ejector 33 is provided for exhausting the cold air ejected from the air ejector coil 34 and conveying the gas generated by the fan blade A26, so that the cold air enters the circuit breaker body 4. When the cold air enters the circuit breaker body 4, it pushes the hot air to flow, so that the hot air inside the circuit breaker body 4 is discharged through the exhaust cover 23.

[0074] The extension of the electric telescopic rod 35 can drive the L-shaped movable plate 2 to move, and the movement of the L-shaped movable plate 2 can drive the guide rod 17 to move. The movement of the L-shaped movable plate 2 can drive the installation tube 10 to move, and the movement of the installation tube 10 can drive the three U-shaped jet tubes 9 to move, so that the U-shaped jet tubes 9 are sleeved on the circuit breaker body 4 and move simultaneously. The arrangement of the refrigerant 5 can generate cold air. The arrangement of the air delivery pipe A8 and the installation tube 10 can transport the cold air generated by the refrigerant 5 into the U-shaped jet tubes 9, and the air ejected from the U-shaped jet tubes 9 can sweep the surface of the circuit breaker body 4.

[0075] The output end of the forward and reverse motor 36 rotates to drive the gear E37 to rotate, the gear E37 rotates to drive the gear D30 to rotate, the gear D30 rotates to drive the heat dissipation control plate 18 to rotate, and the heat dissipation control plate 18 rotates to block the heat dissipation hole 16.

[0076] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A direct-acting high heat dissipation circuit breaker specially designed for SF6 high current gas filling cabinet, characterized in that: include; Connecting plate (1); Three circuit breaker bodies (4) are provided, and the three circuit breaker bodies (4) are all provided at one side end of the connecting plate (1), and the three circuit breaker bodies (4) are evenly distributed; An installation box (6) fixedly connected to one side end of the connecting plate (1); A refrigeration mechanism is provided on the installation box (6); The air generating mechanism is provided on the connecting plate (1), the mounting box (6) and the three circuit breaker bodies (4); A cooling mechanism is provided on the installation box (6) and the air generating mechanism; A ventilation adjustment mechanism is provided on the connecting plate (1) and the installation box (6); The wind generating mechanism comprises: A wind shield component is provided on the connecting plate (1), the mounting box (6) and the three circuit breaker bodies (4); The first wind generating components are provided in three groups, and the three groups of the first wind generating components are all provided on the wind shielding component; A second wind generating component is provided on the installation box (6) and the wind shielding component, wherein the second wind generating component is connected to the three groups of first wind generating components; The windshield component comprises an exhaust hood (23), a connecting rod sleeve (27), a conical jet nozzle (33) and a partition (38). The exhaust hood (23) is fixedly connected to one side end of the connecting plate (1), and the exhaust hood (23) is fixedly connected to the installation box (6). Three connecting rod sleeves (27) are provided. The three connecting rod sleeves (27) are all fixedly connected to one side end of the exhaust hood (23), and the three connecting rod sleeves (27) all pass through the exhaust hood (23) and the connecting plate ( 1), each connecting rod sleeve (27) is movably inserted into each circuit breaker body (4), three conical jet cylinders (33) are provided, each conical jet cylinder (33) is fixedly connected to one end of each connecting rod sleeve (27), and each conical jet cylinder (33) is provided in each circuit breaker body (4), two partitions (38) are provided, and the two partitions (38) are fixedly connected between the connecting plate (1) and the exhaust cover (23); Each group of the first wind-generating components includes a mounting shell (19), a mounting sleeve (24), a gear C (25), a fan blade A (26) and a ventilation pipe (28); the mounting shell (19) is fixedly connected to the circumferential surface of the connecting rod sleeve (27), and the mounting shell (19) is located in the mounting box (6); a plurality of ventilation pipes (28) are provided, and the plurality of ventilation pipes (28) are fixedly connected between the mounting shell (19) and the conical jet cylinder (33), and the plurality of ventilation pipes (28) pass through the exhaust cover (23); the mounting sleeve (24) is rotatably connected to the circumferential surface of the connecting rod sleeve (27), and the mounting sleeve (24) is located in the mounting shell (19); the fan blade A (26) is fixedly connected to the circumferential surface of the mounting sleeve (24), and the gear C (25) is fixedly connected to the circumferential surface of the mounting sleeve (24); The cooling mechanism comprises: A first exhaust component is provided on the connecting plate (1), the mounting box (6) and the exhaust cover (23); Three groups of second exhaust mechanisms are provided, each group of the second exhaust mechanisms is provided on the installation box (6), the exhaust cover (23) and the conical air jet cylinder (33), and each group of the second exhaust mechanisms is connected to the first exhaust component; The first exhaust component comprises an L-shaped movable plate (2), a vertical plate (3), a refrigerant (5), an air delivery pipe A (8), a U-shaped jet pipe (9), a mounting pipe (10), a guide rod (17) and an electric telescopic rod (35), wherein two guide rods (17) are provided, and both guide rods (17) are movably plugged into one side end of the exhaust hood (23), and both guide rods (17) movably penetrate the exhaust hood (23) and the connecting plate (1) and extend to the outside of the connecting plate (1), the L-shaped movable plate (2) is fixedly connected to the same side end of the two guide rods (17), the electric telescopic rod (35) is fixedly connected to one side end of the exhaust hood (23), and the extended end of the electric telescopic rod (35) movably penetrates the exhaust hood (23) and the connecting plate (1) and is connected to the L-shaped movable plate (2). The movable plate (2) is fixedly connected, two vertical plates (3) are provided, and the two vertical plates (3) are fixedly connected to one side end of the L-shaped movable plate (2), and the two vertical plates (3) are symmetrically arranged, the mounting pipe (10) is fixedly connected between the two vertical plates (3), three U-shaped jet pipes (9) are provided, and the three U-shaped jet pipes (9) are fixedly connected to the circumferential surface of the mounting pipe (10), and each U-shaped jet pipe (9) is movably sleeved on each circuit breaker body (4), the refrigerant (5) is fixedly connected to one end of the mounting box (6), and two gas pipes A (8) are provided, one end of each gas pipe A (8) is fixedly connected to the mounting pipe (10), and the other end of each gas pipe A (8) is fixedly connected to the refrigerant (5); Each group of the second exhaust mechanism includes an air supply pipe B (32) and an air jet coil (34). One end of the exhaust hood (23) is fixedly connected to the refrigerant (5), and the other end of the air supply pipe B (32) passes through the installation box (6), the exhaust hood (23) and the conical air jet cylinder (33) and extends to the inner side of the conical air jet cylinder (33). The air jet coil (34) is fixedly connected to one end of the air supply pipe B (32), and the air jet coil (34) is arranged in the conical air jet cylinder (33).

2. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinets according to claim 1, characterized in that: The refrigeration mechanism comprises a refrigerant (7) and a copper coil (11), wherein the refrigerant (7) is fixedly connected to one side end of the installation box (6), and the copper coil (11) is arranged in the installation box (6), and both ends of the copper coil (11) pass through the installation box (6) and are fixedly connected to the refrigerant (7).

3. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 2, characterized in that: The second wind-generating component includes a rotating shaft A (12), a horizontal plate (13), a bevel gear (14), a rotating shaft B (15), a driving motor (20), a gear A (21), a gear B (22) and a fan B (29), wherein two rotating shafts B (15) are provided, and the two rotating shafts B (15) are both rotatably connected to one side end of the exhaust hood (23), and the two rotating shafts B (15) are symmetrically arranged, and two gears B (22) are provided, and each gear B (22) is fixedly connected to the circumferential surface of each rotating shaft B (15), and each gear B (22) is meshed with each two gears C (25), the driving motor (20) is fixedly connected to one end of the exhaust hood (23), the gear A (21) is fixedly connected to the output end of the driving motor (20), and the gear A (21) is meshed with one of the gears B (22), and the horizontal plate (13) is fixedly connected to the output end of the driving motor (20). The plate (13) is fixedly connected between the side walls of the installation box (6), and two rotating shafts A (12) are provided. Each rotating shaft A (12) is rotatably connected between the transverse plate (13) and the inner wall of one side of the installation box (6), and each rotating shaft A (12) rotates through the transverse plate (13) and extends to the outside of the transverse plate (13). Two fans B (29) are provided, and each mounting shell (19) is fixedly connected to the circumferential surface of each rotating shaft A (12), and each fan B (29) is arranged on the upper side of the copper coil (11). Four bevel gears (14) are provided, wherein two of the bevel gears (14) are respectively fixedly connected to the circumferential surfaces of the two rotating shafts B (15), and the remaining two bevel gears (14) are respectively fixedly connected to the circumferential surfaces of the two rotating shafts A (12), and each two bevel gears (14) are meshed with each other.

4. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinets according to claim 3, characterized in that: The ventilation adjustment mechanism includes a heat dissipation hole (16), a heat dissipation control plate (18), a gear D (30), a rotating shaft C (31), a forward and reverse motor (36) and a gear E (37). The heat dissipation hole (16) is opened at the bottom of the installation box (6). The rotating shaft C (31) is rotatably connected to the lower inner wall of the installation box (6), and one end of the rotating shaft C (31) rotates through the installation box (6) and extends to the outside of the installation box (6). The heat dissipation control plate (18) is fixedly connected to the circumferential surface of the rotating shaft C (31). The gear D (30) is fixedly connected to the circumferential surface of the heat dissipation control plate (18). The forward and reverse motor (36) is fixedly connected to the lower inner wall of the installation box (6), and the output end of the forward and reverse motor (36) rotates through the installation box (6) and extends to the outside of the installation box (6). The gear E (37) is fixedly connected to the output end of the forward and reverse motor (36), and the gear E (37) and the gear D (30) are meshed with each other.

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