Special direct-acting high-heat-dissipation circuit breaker for SF6 large-current gas-insulated switchgear

Abstract

The invention provides a direct-acting high-heat-dissipation circuit breaker special for an SF6 large-current gas-insulated switchgear, and belongs to the field of direct-acting circuit breakers. The direct-acting high-heat-dissipation circuit breaker is composed of a connecting plate, a circuit breaker body, a mounting box, a refrigerating mechanism, a wind generating mechanism, a cooling mechanism and a ventilation adjusting mechanism. The sprayed cold air can enter the circuit breaker body through the special shape of the conical air spraying barrel, the conical air spraying barrel is used for discharging the cold air sprayed by the air spraying coil pipe, meanwhile, air generated by the fan blades A is conveyed, the cold air enters the circuit breaker body, and when the cold air enters the circuit breaker body, hot air is pushed to flow, so that the hot air is sprayed out. Therefore, hot air in the circuit breaker body is exhausted through the exhaust hood, the heat dissipation effect is improved, and the problems that in the prior art, a large amount of heat is generated when large current passes through a circuit breaker, and the large amount of heat cannot be rapidly dissipated, so that equipment is overheated, performance is reduced and even the equipment is damaged can be solved.

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 a SF6 large-current gas-filled cabinet. Background Art

[0002] With the increase in power demand and the increasing complexity of power networks in power systems, especially under harsh working conditions such as high voltage, high current, and long-term load, the requirements for high-voltage switchgear are becoming higher and higher. Traditional switchgear is prone to overheating and incomplete arc extinguishing under high current and high load conditions, which not only affects the reliability of the equipment, but may also cause failure or shutdown of the power system. Therefore, the development of circuit breaker equipment with high reliability, high heat dissipation, and long life has become one of the key technologies to improve the stability and safety of the power system.

[0003] The authorization publication number "CN216849769U" records "a vacuum circuit breaker, comprising: a shell, a permanent magnet mechanism is arranged at one end of the shell, a vacuum arc extinguishing chamber assembly is arranged at the other end of the shell, and a static contact is arranged on the vacuum arc extinguishing chamber 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 that can contact the static contact, the permanent magnet mechanism is used to drive the transmission assembly to move in the vertical direction, and an annular groove is arranged 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. However, 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, direct-acting circuit breakers have 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 filling cabinets, aiming to solve the problem in the prior art that the circuit breaker generates a large amount of heat when a 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 used for SF6 high-current gas-filled cabinet, comprising:

[0008] The connecting plate blew out cold air;

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

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

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

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

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

[0014] The ventilation adjustment mechanism is arranged on the cold air outlet of the connection 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 spray and a copper coil cold air spray. The refrigerant liquid cold air spray is fixedly connected to one side end of the installation box cold air spray, and the copper coil cold air spray is arranged in the installation box cold air spray, and both ends of the copper coil cold air spray pass through the installation box cold air spray and are fixedly connected to the refrigerant liquid cold air spray.

[0016] As a preferred solution of the present invention, the wind generating mechanism comprises:

[0017] Wind shielding components are provided 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 wind generating component is arranged on the cold air ejection and wind shielding component of the installation box, and the second wind generating component is connected with the three groups of the first wind generating components.

[0020] As a preferred solution of the present invention, the wind shield 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, the connecting rod sleeve cold air outlet is provided with three, 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 arranged 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 scheme of the present invention, each group of the first air-generating components includes a mounting shell cold air ejection, a mounting sleeve cold air ejection, a gear C cold air ejection, a fan blade A cold air ejection and a ventilation duct cold air ejection, the mounting shell cold air ejection is fixedly connected to the circumferential surface of the connecting rod sleeve cold air ejection, and the mounting shell cold air ejection is located in the mounting box cold air ejection, a plurality of ventilation duct cold air ejections are provided, a plurality of the ventilation duct cold air ejections are fixedly connected between the mounting shell cold air ejection and the conical jet tube cold air ejection, and a plurality of ventilation duct cold air ejections all penetrate the exhaust hood cold air ejection, the mounting sleeve cold air ejection is rotatably connected to the circumferential surface of the connecting rod sleeve cold air ejection, and the mounting sleeve cold air ejection is arranged in the mounting shell cold air ejection, the fan blade A cold air ejection is fixedly connected to the circumferential surface of the mounting sleeve cold air ejection, and the gear C cold air ejection is fixedly connected to the circumferential surface of the mounting 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 outlet, a horizontal plate cold air outlet, a bevel gear cold air outlet, a rotating shaft B cold air outlet, a driving motor cold air outlet, a gear A cold air outlet, a gear B cold air outlet and a fan B cold air outlet. The rotating shaft B cold air outlet is provided with two, and the two rotating shaft B cold air outlets are both rotatably connected to one side end of the exhaust hood cold air outlet, and the two rotating shaft B cold air outlets are symmetrically arranged. The gear B cold air outlet is provided with two, each of the gear B cold air outlets is fixedly connected to the circumferential surface of each rotating shaft B cold air outlet, and each gear B cold air outlet is meshed with every two gear C cold air outlets. The driving motor cold air outlet is fixedly connected to one end of the exhaust hood cold air outlet, the gear A cold air outlet is fixedly connected to the output end of the driving motor cold air outlet, and the gear A cold air outlet is meshed with one of the gear B cold air outlets. The horizontal plate cold air outlet is fixedly connected between the side walls of the installation box cold air outlet, 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, 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, the bevel 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 bevel gear cold air outlets are meshed with each other.

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

[0024] The first exhaust component is arranged 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, each group of the second exhaust mechanism is arranged 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 device cold air ejection, an air delivery 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, 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 is movably penetrated through 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, the vertical plate cold air outlet is provided with two, 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, the U-shaped jet pipe cold air outlet is provided with three, 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 outlet is movably mounted on the cold air outlet of each circuit breaker body, the cold air outlet of the refrigerator is fixedly connected to one end of the cold air outlet of the mounting box, the air supply pipe A cold air outlet is provided with two, one end of each of the cold air outlets of the air supply pipe A is fixedly connected to the mounting pipe cold air outlet, and the other end of each cold air outlet of the air supply pipe A is fixedly connected to the cold air outlet of the refrigerator.

[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 spray, a heat dissipation control board cold air spray, a gear D cold air spray, a shaft C cold air spray, a forward and reverse motor cold air spray and a gear E cold air spray. The heat dissipation hole cold air spray is opened at the bottom of the installation box cold air spray, the shaft C cold air spray is rotatably connected to the lower inner wall of the installation box cold air spray, and one end of the shaft C cold air spray rotates through the installation box cold air spray and extends to the outside of the installation box cold air spray, the heat dissipation control board cold air spray The air jet is fixedly connected to the circumferential surface of the cold air jet of the rotating shaft C, the gear D cold air jet is fixedly connected to the circumferential surface of the cold air jet of the heat dissipation control board, the forward and reverse motor cold air jet is fixedly connected to the lower inner wall of the cold air jet of the installation box, and the output end of the forward and reverse motor cold air jet rotates through the cold air jet of the installation box and extends to the outside of the cold air jet of the installation box, the gear E cold air jet is fixedly connected to the output end of the forward and reverse motor cold air jet, and the gear E cold air jet and the gear D cold air jet are meshed with each other.

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

[0030] 1. In this scheme, the cold air generated by the cold air ejection of the refrigerating machine can be transported into the cold air ejection of the jet coil through the setting of the cold air ejection of the air delivery pipe B, and the cold air can be ejected through the setting of the cold air ejection of the jet coil. The special shape of the cold air ejection of the conical jet tube allows the ejected cold air to enter the cold air ejection of the circuit breaker body. The setting of the cold air ejection of the conical jet tube is used to discharge the cold air ejected from the cold air ejection of the jet coil, and at the same time, the gas generated by the cold air ejection of the fan blade A is transported, so that the cold air enters the cold air ejection of the circuit breaker body. When the cold air enters the cold air ejection of the circuit breaker body, it pushes the hot air to flow, so that the hot air inside the cold air ejection of the circuit breaker body is discharged through the cold air ejection of the exhaust hood, thereby improving the heat dissipation effect.

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

[0032] 3. In this scheme, 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 drives the cold air ejection of gear B to rotate, and the cold air ejection of gear B drives the two gears C to rotate simultaneously, and the cold air ejection of gear B drives the cold air ejection of shaft B to rotate, and the cold air ejection of shaft B drives the cold air ejection of bevel gear to rotate. Since the two bevel gear cold air ejections are meshed with each other, the two bevel gear cold air ejections rotate simultaneously, and the cold air ejection of bevel gear drives 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 rotation of the cold air ejection of fan B can generate wind.

[0033] 4. In this scheme, cold liquid can be generated by the setting of the cold air spray of the refrigerant, and the setting of the cold air spray 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 the present scheme, the cold air ejection of the L-shaped movable plate can be driven to move by extending the cold air ejection of the electric telescopic rod, the cold air ejection of the guide rod can be driven to move by the cold air ejection of the L-shaped movable plate, the cold air ejection of the installation pipe can be driven to move by the cold air ejection of the L-shaped movable plate, and the cold air ejection of the installation pipe can be driven to move three U-shaped jet pipes, so that the U-shaped jet pipe cold air ejection is moved while being sleeved on the cold air ejection of the circuit breaker body, and cold air can be generated by the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the cold air ejection of the circuit breaker body, and the cold air ejection of the U-shaped jet pipe can sweep the surface of the cold air ejection of the circuit breaker body to prevent dust from accumulating on the surface of the cold air ejection of the circuit breaker body and affecting heat dissipation, and the cold air sweeping the surface of the cold air ejection of the circuit breaker body can cool down the outside of the cold air ejection of the circuit breaker body.

[0035] 6. In this scheme, the setting of the cold air ejection through the heat dissipation holes 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 through the heat dissipation holes. The rotation of the output end of the cold air ejection through 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, and the rotation of the cold air ejection through the heat dissipation control board can block the cold air ejection of the heat dissipation holes. 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 It is a structural schematic diagram of the cold air ejection point of the conical jet tube 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 The enlarged view of point A in the middle;

[0041] Figure 5 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 The enlarged view of point B in the middle;

[0043] Figure 7 This is a schematic diagram of the structure of the cold air ejection point of the jet coil of the present invention;

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

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

[0046] Fig.10 It is a schematic structural diagram of the cold air ejection point of the exhaust hood of the present invention.

[0047] In the figure: 1, connecting plate; 2, L-shaped moving plate; 3, vertical plate; 4, circuit breaker body; 5, air cooler; 6, installation box; 7, refrigerant; 8, gas pipe A; 9, U-shaped jet pipe; 10, installation pipe; 11, copper coil; 12, shaft A; 13, horizontal plate; 14, bevel gear; 15, shaft B; 16, heat dissipation hole; 17, guide rod; 18, heat dissipation control board; 19, installation shell; 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 pipe; 29, fan B; 30, gear D; 31, shaft C; 32, air 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] See also Figure 1-Figure 10 , the technical solution provided by this embodiment is as follows:

[0051] A direct-acting high-heat dissipation circuit breaker specially used for a SF6 large-current gas-filled cabinet comprises 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 regulating 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, and 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 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 wind shield component is arranged on the connecting plate 1, the installation box 6 and the three circuit breaker bodies 4, and the wind shield 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 installation box 6. Three connecting rod sleeves 27 are provided, and 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 penetrate the exhaust hood 23 and the connecting plate 1, and each connecting rod sleeve 27 is movably inserted in each circuit breaker body 4. Three conical jet tubes 33 are provided, and each conical jet tube 33 is fixedly connected to one end of each connecting rod sleeve 27, and each conical jet tube 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 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 tube 33 is provided for exhausting the cold air ejected from the jet coil 34, while 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 arranged 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. A plurality of ventilation pipes 28 are provided, and the plurality of ventilation pipes 28 are all fixedly connected between the mounting shell 19 and the conical jet cylinder 33, and the plurality of 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 arranged 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 installation sleeve 24 to rotate, and the rotation of the installation sleeve 24 can drive the fan blade A26 to rotate. The rotation of the fan blade A26 can generate wind. The setting of the installation 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 the wind is transported to the conical jet tube 33 through the ventilation pipe 28, and the cold air ejected from the jet coil 34 is used to dissipate heat and cool the interior of the circuit breaker body 4.

[0059] Specifically, the second wind generating component is arranged on the installation box 6 and the wind shielding 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 driving 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 hood 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 driving motor 20 is fixedly connected to one end of the exhaust hood 23, the gear A21 is fixedly connected to the output end of the driving motor 20, and the gear A21 It is meshed with one of the gears B22, the cross plate 13 is fixedly connected between the side walls of the installation box 6, two rotating shafts A12 are provided, each rotating shaft A12 is rotatably connected between the cross plate 13 and the inner wall of one side of the installation box 6, and each rotating shaft A12 rotates through the cross plate 13 and extends to the outside of the cross 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 driving motor 20 is driven to rotate the gear A21, and the gear A21 is driven to rotate the gear B22, and the gear B22 is driven to rotate the two gears C25 at the same time, and the gear B22 is driven to rotate the shaft B15, and the bevel gear 14 is driven to rotate by the shaft B15. Since the two bevel gears 14 are meshed with each other, the two bevel gears 14 are driven to rotate at the same time, and the rotation of the bevel gear 14 drives the shaft A12 to rotate, and the rotation of the shaft A12 drives the fan B29 to rotate, and the rotation of the fan B29 can generate wind.

[0061] Specifically, the first exhaust component is arranged on the connecting plate 1, the installation box 6 and the exhaust hood 23, and 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. Two guide rods 17 are provided, and the two guide rods 17 are movably plugged into one side end of the exhaust hood 23, and the two guide rods 17 are movably inserted 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, and 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 movably inserted through the exhaust hood 23 and the connecting plate 1. 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. 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. 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 sleeved 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 L-shaped movable plate 2 can be moved by extending the electric telescopic rod 35, the guide rod 17 can be moved by moving the L-shaped movable plate 2, the mounting tube 10 can be moved by moving the L-shaped movable plate 2, and the three U-shaped jet tubes 9 can be moved by moving the mounting tube 10, so that the U-shaped jet tube 9 is moved while being sleeved on the circuit breaker body 4, and cold air can be generated by the setting of the refrigerant 5. The cold air generated by the refrigerant 5 can be transported into the U-shaped jet tube 9 by the setting of the air delivery pipe A8 and the mounting tube 10, and the surface of the circuit breaker body 4 can be swept by the U-shaped jet tube 9 to prevent dust from accumulating on the surface of the circuit breaker body 4 and affecting heat dissipation, and the surface of the circuit breaker body 4 can be cooled by the cold air.

[0063] Specifically, three groups of second exhaust mechanisms are provided, each group of second exhaust mechanisms is arranged 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, 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 arranged in the conical jet tube 33.

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

[0065] Specifically, the ventilation adjustment mechanism is arranged on the connecting plate 1 and the installation box 6, and 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 is meshed with the gear D30.

[0066] In a specific embodiment of the present invention, the heat dissipation hole 16 is provided for discharging the gas inside the installation box 6, and the heat dissipation control plate 18 is provided for covering the heat dissipation hole 16. The output end of the forward and reverse motor 36 can rotate to drive the gear E37 to rotate, and the gear E37 can rotate to drive the gear D30 to rotate, and the gear D30 can rotate to drive the heat dissipation control plate 18 to rotate, and the heat dissipation hole 16 can be blocked by the rotation of the heat dissipation control plate 18.

[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 working principle of the direct-acting circuit breaker is based on the interaction between electromagnetic force and spring force. When the circuit is working normally, the circuit breaker is in a closed state and the current passes through the contacts of the circuit breaker. When the circuit is short-circuited, overloaded or in other abnormal conditions, the protection device inside the circuit breaker will detect the abnormal current, trigger the tripping mechanism of the circuit breaker, and quickly cut off the power supply of the circuit breaker. When the circuit is short-circuited, the magnetic field generated by the large current overcomes the reaction spring, the tripper pulls the operating mechanism to act, and the switch trips instantly. This is achieved through an electromagnetic tripper. When the line is short-circuited or severely overloaded, the electromagnetic suction force of the electromagnetic tripper increases, the armature is attracted, and the lever is hit upward to disconnect the main contact. When the circuit is overloaded, the overload current flows through the heating element, causing the bimetallic strip to be bent by heat, and the mechanism is driven to act, thereby disconnecting the main contact. This is achieved through a thermal tripper. When the line is overloaded, the bimetallic strip is deformed to a certain extent, the mechanism is driven to act, and overload protection is achieved. Some circuit breakers have electronic protection functions, and mutual inductors are used to collect the current size of each phase and compare it with the 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 used for SF6 high-current gas-filled cabinet provided by the present invention is as follows:

[0070] The output end of the driving motor 20 rotates to drive the gear A21 to rotate, the gear A21 rotates to drive the gear B22 to rotate, the gear B22 rotates to drive the two gears C25 to rotate simultaneously, the gear B22 rotates to drive the shaft B15 to rotate, the shaft B15 rotates to drive the bevel gear 14 to rotate, and since the two bevel gears 14 are meshed with each other, the two bevel gears 14 rotate simultaneously, the shaft A12 rotates to drive the bevel gear 14 to rotate, the shaft A12 rotates to drive the fan B29 to rotate, and the fan B29 rotates to 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 wind.

[0072] The rotation of the gear C25 can drive the installation sleeve 24 to rotate, and the rotation of the installation sleeve 24 can drive the fan blade A26 to rotate. The rotation of the fan blade A26 can generate wind. The setting of the installation 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, and cooperates with the cold air ejected by the jet coil 34 to dissipate heat and cool the inside of the circuit breaker body 4;

[0073] The connecting rod sleeve 27 is used to install the connecting rod, and the conical jet tube 33 is used to discharge the cold air sprayed from the jet coil 34, and at the same time, the gas generated by the fan blade A26 is transported, 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, 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, and the setting of the refrigerant 5 can generate cold air, and the setting 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 tube 9, and the surface of the circuit breaker body 4 can be swept by the spraying of the U-shaped jet tube 9;

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

[0076] Finally, it should be noted that the above are only 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A direct-acting high heat dissipation circuit breaker specially used for SF6 high-current gas-filled 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; A mounting box (6) fixedly connected to one side end of the connecting plate (1); A refrigeration mechanism is arranged on the installation box (6); The air generating mechanism is arranged on the connection plate (1), the installation box (6) and the three circuit breaker bodies (4); A cooling mechanism is arranged on the installation box (6) and the air generating mechanism; The ventilation adjustment mechanism is arranged on the connecting plate (1) and the installation box (6).

2. According to claim 1, a direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet is characterized in that: The refrigeration mechanism comprises a refrigerant (7) and a copper coil (11); the refrigerant (7) is fixedly connected to one side end of a mounting box (6); the copper coil (11) is arranged in the mounting box (6); and both ends of the copper coil (11) penetrate the mounting 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 wind generating mechanism comprises: A wind shield component is provided on the connection plate (1), the installation 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; The second wind generating component is arranged on the installation box (6) and the wind shielding component, and the second wind generating component is connected to the three groups of the first wind generating components.

4. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 3, characterized in that: The wind shielding component comprises 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 installation box (6); three connecting rod sleeves (27) are provided, and 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 penetrate the exhaust hood (23) and the connecting plate ( 1), each of the connecting rod sleeves (27) is movably inserted into each circuit breaker body (4), three of the conical jet cylinders (33) are provided, each of the conical jet cylinders (33) is fixedly connected to one end of each connecting rod sleeve (27), and each of the conical jet cylinders (33) is arranged in each circuit breaker body (4), and two of the partitions (38) are provided, and the two partitions (38) are fixedly connected between the connecting plate (1) and the exhaust cover (23).

5. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 4, characterized in that: Each group of the first wind-generating components comprises 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 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 arranged 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).

6. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 5, characterized in that: The second wind generating component comprises 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), 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), two rotating shafts A (12) are provided, each of the rotating shafts 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) is rotatably passed through the transverse plate (13) and extends to the outside of the transverse plate (13), two fans B (29) are provided, each of the mounting shells (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), and four bevel gears (14) are provided, two of which are fixedly connected to the circumferential surfaces of the two rotating shafts B (15), and the remaining two bevel gears (14) are fixedly connected to the circumferential surfaces of the two rotating shafts A (12), and each two of the bevel gears (14) are meshed with each other.

7. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 6, characterized in that: The cooling mechanism comprises: A first exhaust component is arranged on the connecting plate (1), the mounting box (6) and the exhaust cover (23); The second exhaust mechanism is provided in three groups, each group of the second exhaust mechanism 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 mechanism is connected to the first exhaust component.

8. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 7, characterized in that: 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). Two guide rods (17) are provided. The two guide rods (17) are both movably plugged into one side end of the exhaust hood (23). The two guide rods (17) are both movably inserted into 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). The extended end of the electric telescopic rod (35) is movably inserted into the exhaust hood (23) and the connecting plate (1) and extends to the outside of the connecting plate (1). The movable plate (2) is fixedly connected, two vertical plates (3) are provided, 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, the three U-shaped jet pipes (9) are fixedly connected to the circumferential surface of the mounting pipe (10), each of the U-shaped jet pipes (9) is movably sleeved on each circuit breaker body (4), the refrigerant (5) is fixedly connected to one end of the mounting box (6), two air supply pipes A (8) are provided, one end of each air supply pipe A (8) is fixedly connected to the mounting pipe (10), and the other end of each air supply pipe A (8) is fixedly connected to the refrigerant (5).

9. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 8, characterized in that: Each group of the second exhaust mechanism comprises 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); 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).

10. A direct-acting high heat dissipation circuit breaker dedicated to SF6 high-current gas-filled cabinet according to claim 9, characterized in that: The ventilation adjustment mechanism comprises 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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