An air-insulated circuit breaker for outdoor switch boxes

Abstract

The present invention relates to the technical field of circuit breakers and discloses an air-insulated circuit breaker for an outdoor switch box, comprising a mounting platform, an insulator being fixedly connected to one side of the top of the mounting platform, a gas mechanism being fixedly connected to the side of the mounting platform away from the insulator, a shunt mechanism being fixedly connected to the side of the gas mechanism, a cooling component being fixedly connected to the top of the shunt mechanism away from the side of the gas mechanism, and an antifreeze component being fixedly connected to the bottom of the shunt mechanism away from the side of the gas mechanism. According to the present invention, when there is a possibility of freezing between a knife switch and an insulator, a first electromagnet is powered off. When the first electromagnet is powered off, a supporting spring resets a sealing plate, at which time the sealing plate moves toward a gas channel, thereby pressing gas in the gas box into the gas channel. The gas entering the gas channel is heated again through a heating channel and then blown to the junction of the knife switch and the insulator through a gas nozzle, thereby preventing the knife switch and the insulator from freezing together.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and more particularly to an air-insulated circuit breaker for an outdoor switch box. Background Art

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and closing, carrying, and interrupting current under abnormal circuit conditions within a specified timeframe. Circuit breakers are categorized as high-voltage and low-voltage according to their scope of use. They can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. They can automatically disconnect circuits in the event of severe overloads, short circuits, undervoltages, and other faults, and no component replacement is required after interrupting the fault current.

[0003] Today's circuit breakers are widely used in power distribution networks due to their small size, light weight, suitability for frequent operation, and arc extinguishing without maintenance. Today's circuit breakers are equipped with an airtight insulating cylinder made of ceramic, glass, or glass-ceramic. This insulating cylinder can isolate the arc generated during power outages, ensuring safety during power outages.

[0004] When today's circuit breakers are used outdoors, they are affected by the external environment. When they are working in cold seasons, if ice forms at the connection between the switch blade and the insulator, the switch blade and the insulator will be frozen. When both are frozen, when the circuit breaker needs to be opened to cut off the power, the opening work cannot be carried out in time, which will cause the electrical equipment to continue to work and cause damage.

[0005] Since it is currently impossible to accurately detect whether a circuit breaker is frozen when it is working, it is impossible to repair a frozen circuit breaker in time;

[0006] When the vacuum interrupter in the circuit breaker is performing power-off operation, the contacts inside it separate when the power is cut off. When the contacts separate, high temperature is generated. Although insulated by ceramic, the temperature still rises rapidly, so the frequency of damage is high. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides an air-insulated circuit breaker for an outdoor switch box to solve the technical problems raised in the background art.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: an air-insulated circuit breaker for an outdoor switch box, comprising a mounting platform, an insulator fixedly connected to one side of the top of the mounting platform, and a vacuum interrupter fixedly connected to the other side of the top of the mounting platform, a knife movably connected to the side of the vacuum interrupter close to the mounting platform, the bottom end of the knife away from the side of the vacuum interrupter connected to the top of the insulator, a gas mechanism fixedly connected to the side of the mounting platform away from the insulator, a shunt mechanism fixedly connected to the side of the gas mechanism, a cooling assembly fixedly connected to the top of the shunt mechanism away from the gas mechanism, and an antifreeze assembly fixedly connected to the bottom end of the shunt mechanism away from the side of the gas mechanism;

[0009] The gas mechanism includes a gas box filled with gas, the interior of the gas box is movably connected to a sealing plate, the sealing plate seals the interior of the gas box, the four corners of the gas box close to the side of the branch mechanism are fixedly connected to the first electromagnet, the four corners of the gas box away from the first electromagnet are movably connected to the support spring, and the two sides of the support spring are in contact with the interior of the gas box and the side of the sealing plate.

[0010] Furthermore, the side of the mounting platform away from the gas mechanism is fixedly connected to a mounting bracket, the top of the mounting bracket is fixedly connected to a smart camera, the side of the mounting platform away from the smart camera is fixedly connected to a control terminal, the top of the mounting platform is fixedly connected to a temperature collector, and the smart camera collects image data information at the connection between the switch and the insulator and sends it to the control terminal.

[0011] Furthermore, the control terminal receives the image data information sent by the smart camera and calculates the proportional characteristic value F. The calculation formula of the proportional characteristic value F is: Wherein ||B|| is the perimeter of the contact area between the switch blade and the insulator, and A is the area of the contact area between the switch blade and the insulator. When the control terminal detects a change in the proportional characteristic value F, the control gas mechanism is operated.

[0012] Furthermore, the four corners of the sealing plate away from the side of the first electromagnet are fixedly connected to the limiting cylinder, the internal movably connected to the limiting rod, the side of the limiting rod away from the limiting cylinder is fixedly connected to the interior of the gas box, the limiting cylinder and the limiting rod are located in the support spring, and the side of the gas box away from the support spring is connected to the branch mechanism.

[0013] Furthermore, the branch mechanism includes a gas channel for receiving gas in the gas mechanism, the top end of the gas channel away from the side of the gas mechanism is fixedly connected to a first branch, and the bottom end of the gas channel away from the side of the gas mechanism is fixedly connected to a second branch, and the bottom end of the first branch is fixedly connected to the top end of the second branch.

[0014] Furthermore, a rotating plate is movably connected to the connection between the first branch and the second branch, a fixed shaft is movably connected inside the rotating plate, both sides of the fixed shaft are fixedly connected to the inside of the gas channel, a second electromagnet is fixedly connected to the top of the gas channel near the first branch, and the top of the rotating plate is in contact with the bottom of the second electromagnet.

[0015] Furthermore, the antifreeze component includes a heating channel for receiving the second branch gas in the branch mechanism, the side of the heating channel is fixedly connected to a lower channel, the side of the lower channel away from the heating channel is fixedly connected to a first connecting channel, the side of the first connecting channel away from the lower channel is fixedly connected to a gas nozzle, and the outlet of the gas nozzle is located at the connection between the switch and the insulator.

[0016] Furthermore, the cooling component includes an upper channel for receiving the first branch gas in the branch mechanism, the top of the upper channel is fixedly connected to a second connecting channel, the side of the second connecting channel is fixedly connected to an acceleration outlet, and the outlet of the acceleration outlet is located on the side of the vacuum arc chamber.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. In the present invention, when there is a possibility of freezing between the switch blade and the insulator, the first electromagnet is de-energized. When the first electromagnet is de-energized, the support spring resets the sealing plate. At this time, the sealing plate moves toward the gas channel, thereby pressing the gas in the gas box into the gas channel. The gas entering the gas channel is heated again by the heating channel and then blown to the junction of the switch blade and the insulator through the gas nozzle, thereby preventing the switch blade and the insulator from freezing together.

[0019] 2. The present invention uses an intelligent camera to capture images of the junction between the switch blade and the insulator. The intelligent camera transmits the captured images to a control terminal, which receives the image data and calculates a proportional characteristic value F. When the control terminal detects a change in the proportional characteristic value F, it controls the operation of a gas mechanism and an antifreeze component to heat and thaw the junction between the switch blade and the insulator, thereby preventing the switch blade and the insulator from freezing.

[0020] 3. When the power is cut off and the circuit breaker is tripped, the first electromagnet and the second electromagnet will automatically cut off the power. After the first electromagnet is cut off, the gas will be sent into the gas channel, and after the second electromagnet is cut off, the magnetic attraction between it and the rotating plate disappears. The rotating plate rotates around the fixed axis under the action of gravity. At this time, the gas channel is connected to the first branch, and the gas will be sent to the cooling component through the first branch. The gas in the cooling component is blown to the side of the vacuum interrupter through the acceleration outlet to cool the vacuum interrupter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the overall front structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall back structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the connection structure between the branch mechanism, the antifreeze component and the cooling component of the present invention.

[0024] Figure 4 Schematic diagram of the gas mechanism structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the exploded structure of the gas mechanism of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the branching mechanism of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the antifreeze component of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the cooling component of the present invention.

[0029] The accompanying drawings are marked as follows: 1. Mounting table; 2. Vacuum interrupter; 3. Switch; 4. Insulator; 5. Gas mechanism; 501. Gas box; 502. Sealing plate; 503. First electromagnet; 504. Support spring; 505. Limiting cylinder; 506. Limiting rod; 6. Branch mechanism; 601. Gas channel; 602. First branch; 603. Second branch; 604. Fixed axis; 605. Rotating plate; 606. Second electromagnet; 7. Antifreeze component; 701. Heating channel; 702. Lower channel; 703. First connecting channel; 704. Gas nozzle; 8. Cooling component; 801. Upper channel; 802. Second connecting channel; 803. Acceleration outlet; 9. Mounting bracket; 10. Smart camera; 11. Temperature collector; 12. Control terminal. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The air-insulated circuit breaker for an outdoor switch box involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1 and Figure 2The present invention provides an air-insulated circuit breaker for an outdoor switch box, comprising a mounting platform 1, wherein an insulator 4 is fixedly connected to one side of the top of the mounting platform 1, and a vacuum interrupter 2 is fixedly connected to the other side of the top of the mounting platform 1, a knife 3 is movably connected to the side of the vacuum interrupter 2 close to the mounting platform 1, and the bottom end of the knife 3 away from the side of the vacuum interrupter 2 is connected to the top of the insulator 4, a gas mechanism 5 is fixedly connected to the side of the mounting platform 1 away from the insulator 4, a branch mechanism 6 is fixedly connected to the side of the gas mechanism 5, a cooling component 8 is fixedly connected to the top of the branch mechanism 6 away from the side of the gas mechanism 5, and an antifreeze component 7 is fixedly connected to the bottom end of the branch mechanism 6 away from the side of the gas mechanism 5, a mounting bracket 9 is fixedly connected to the side of the mounting platform 1 away from the gas mechanism 5, a smart camera 10 is fixedly connected to the top of the mounting bracket 9, a control terminal 12 is fixedly connected to the side of the mounting platform 1 away from the smart camera 10, and a temperature collector 11 is fixedly connected to the top of the mounting platform 1, and the smart camera 10 collects image data information at the connection between the knife 3 and the insulator 4 and sends it to the control terminal 12.

[0032] In the embodiment of the present application, the smart camera 10 will collect image data of the connection between the switch 3 and the insulator 4, so when changes occur at the connection of the smart camera 10, it can be discovered and processed in time, avoiding the switch 3 and the insulator 4 from being frozen for a long time and being unable to perform normal power-off protection work.

[0033] Reference Figure 1 and Figure 2 , the control terminal 12 receives the image data information sent by the smart camera 10 and calculates the proportional characteristic value F. The calculation formula of the proportional characteristic value F is: Wherein ||B|| is the perimeter of the contact area between the switch blade 3 and the insulator 4, and A is the area of the contact area between the switch blade 3 and the insulator 4. When the control terminal 12 detects a change in the proportional characteristic value F, the control gas mechanism 5 is operated.

[0034] In the embodiment of the present application, after the switch 3 and the insulator 4 are closed, the switch 3 and the insulator 4 are statically connected, so the switch 3 and the insulator 4 will not change in shape. When the switch 3 and the insulator 4 are frozen, ice will condense on the surface of the switch 3 and the insulator 4, and its shape will change, that is, the proportional characteristic value F changes. Therefore, when the proportional characteristic value F changes, heating and de-icing work is performed.

[0035] Reference Figure 3 、 Figure 4 as well as Figure 5The gas mechanism 5 includes a gas box 501 filled with gas, and the gas box 501 is movably connected to a sealing plate 502 inside, which seals the inside of the gas box 501. The four corners of the gas box 501 near the side of the branch mechanism 6 are fixedly connected to the first electromagnet 503, and the four corners of the gas box 501 away from the first electromagnet 503 are movably connected to the support spring 504. The two sides of the support spring 504 are in contact with the inside of the gas box 501 and the side of the sealing plate 502. The four corners of the sealing plate 502 away from the side of the first electromagnet 503 are fixedly connected to the limiting cylinder 505, and the inside of the limiting cylinder 505 is movably connected to the limiting rod 506. The side of the limiting rod 506 away from the limiting cylinder 505 is fixedly connected to the inside of the gas box 501, the limiting cylinder 505 and the limiting rod 506 are located in the support spring 504, and the side of the gas box 501 away from the support spring 504 is connected to the branch mechanism 6.

[0036] In the embodiment of the present application, when the first electromagnet 503 is energized, there is a magnetic repulsion between the first electromagnet 503 and the sealing plate 502, which causes the sealing plate 502 to move away from the first electromagnet 503 and compress the support spring 504. When the support spring 504 is compressed, the limit rod 506 is completely located in the limit cylinder 505. When thawing is required, the first electromagnet 503 is powered off, so the magnetic repulsion between the sealing plate 502 and the first electromagnet 503 disappears. At this time, when the support spring 504 is reset, the sealing plate 502 is moved away from the first electromagnet 503. 02 moves toward the first electromagnet 503, and contacts the first electromagnet 503 after moving. At this time, a part of the limit rod 506 is still located in the limit cylinder 505, which plays a role of limiting, and the sealing plate 502 will automatically push the gas into the branch mechanism 6 when it moves. Since the first electromagnet 503 pushes out the gas when the power is off, the gas mechanism 5 can also push out the gas even in the event of a power failure. In addition, it should be noted that the first electromagnet 503 resets ten minutes after the power is off, giving the gas time to be pushed out.

[0037] Reference Figure 5 and Figure 6 The branch mechanism 6 includes a gas channel 601 for receiving gas in the gas mechanism 5, and the top of the gas channel 601 away from the side of the gas mechanism 5 is fixedly connected to the first branch 602, and the bottom of the gas channel 601 away from the side of the gas mechanism 5 is fixedly connected to the second branch 603, the bottom end of the first branch 602 is fixedly connected to the top of the second branch 603, and the connection between the first branch 602 and the second branch 603 is movably connected to a rotating plate 605, and the interior of the rotating plate 605 is movably connected to a fixed shaft 604, and both sides of the fixed shaft 604 are fixedly connected to the interior of the gas channel 601, and the top of the gas channel 601 near the first branch 602 is fixedly connected to the second electromagnet 606, and the top of the rotating plate 605 is in contact with the bottom end of the second electromagnet 606.

[0038] In the embodiment of the present application, when the rotating plate 605 contacts the second electromagnet 606, the rotating plate 605 seals the first branch 602. At this time, the gas will only enter the second branch 603. When the circuit is broken, the second electromagnet 606 is powered off. At this time, the magnetic attraction between the second electromagnet 606 and the rotating plate 605 disappears, so the rotating plate 605 will rotate downward around the fixed axis 604. When the rotating plate 605 rotates, it will seal the second branch 603. At this time, the gas will enter the first branch 602, and the first branch 602 is connected to the cooling component 8, and the second branch 603 is connected to the antifreeze component 7. The present application can provide gas to the antifreeze component 7 or the cooling component 8 respectively under different circumstances to cope with different situations. When the power is off, the rotating plate 605 will automatically descend under the action of gravity and seal the second branch 603. The gas will only enter the first branch 602 and the cooling component 8, and the vacuum interrupter 2 can be cooled.

[0039] Reference Figure 1 and Figure 7 The antifreeze component 7 includes a heating channel 701 for receiving the gas from the second branch 603 in the branch mechanism 6. The side of the heating channel 701 is fixedly connected to the lower channel 702. The side of the lower channel 702 away from the heating channel 701 is fixedly connected to the first connecting channel 703. The side of the first connecting channel 703 away from the lower channel 702 is fixedly connected to the gas nozzle 704. The outlet of the gas nozzle 704 is located at the connection between the switch 3 and the insulator 4.

[0040] In the embodiment of the present application, when the gas enters the heating channel 701, the heating channel 701 will perform heating work, at this time the gas will be heated, and the heated gas will be discharged from the gas nozzle 704 and discharged to the connection between the switch knife 3 and the insulator 4. At this time, the ice on the switch knife 3 and the insulator 4 will be melted when frozen, ensuring that the switch knife 3 and the insulator 4 can perform normal closing and opening operations.

[0041] Reference Figure 8 The cooling component 8 includes an upper channel 801 for receiving the gas from the first branch 602 in the branch mechanism 6. The top of the upper channel 801 is fixedly connected to the second connecting channel 802, and the side of the second connecting channel 802 is fixedly connected to the acceleration outlet 803. The outlet of the acceleration outlet 803 is located on the side of the vacuum interrupter 2.

[0042] In the embodiment of the present application, the gas entering the upper channel 801 will be blown to the side of the vacuum interrupter 2 through the second connecting channel 802, and the vacuum interrupter 2 will perform arc isolation and generate high temperature when the circuit is broken. The gas blown to the side of the vacuum interrupter 2 will cool the vacuum interrupter 2, and the cooling work can be automatically performed when the power is cut off. When the fault is eliminated and the circuit breaker is closed, the sealing plate 502 and the rotating plate 605 are energized again to reset the equipment.

[0043] The working principle of the present invention is as follows: during operation, the intelligent camera 10 collects image data of the connection between the switch blade 3 and the insulator 4, and sends the collected image data information to the control terminal 12. The control terminal 12 receives the image data and calculates the proportional characteristic value F. When the control terminal 12 detects a change in the proportional characteristic value F, indicating that the switch blade 3 and the insulator 4 may be frozen, the control terminal 12 controls the first electromagnet 503 to be de-energized. After the first electromagnet 503 is de-energized, the originally compressed support spring 504 will reset. When the support spring 504 resets, it drives the sealing plate 502 to move toward the gas channel 601, at which time the gas in the gas box 501 will be pushed into the gas channel 601.

[0044] When the gas enters the gas channel 601, the rotating plate 605 seals the first branch 602, and the gas in the gas channel 601 enters the second branch 603 and enters the heating channel 701 through the second branch 603. When the first electromagnet 503 is powered off, the heating channel 701 will perform heating work, so the gas entering the heating channel 701 will be heated, and the heated air will enter the lower channel 702 and the first connecting channel 703 and be discharged through the gas nozzle 704. The discharged gas will blow to the connection between the switch blade 3 and the insulator 4 to prevent the switch blade 3 and the insulator 4 from freezing. When the first electromagnet 503 is powered off and then powered on again ten minutes later, a magnetic repulsive force is generated between it and the sealing plate 502, which resets the sealing plate 502 and compresses the support spring 504. At this time, the side of the gas box 501 near the gas channel 601 is filled with gas again.

[0045] When the temperature collector 11 detects that the external temperature is high, the control terminal 12 controls the first electromagnet 503 to be de-energized again. At this time, when the gas passes through the heating channel 701, the heating channel 701 does not perform heating work, so the gas is blown directly to the connection between the switch blade 3 and the insulator 4 to cool down the temperature.

[0046] When a problem occurs in the operation of the electrical equipment and a short circuit occurs, the knife switch 3 and the insulator 4 will separate from each other and open the switch. After the two are separated, the power of the entire device is cut off, and the devices inside it that require power to drive all stop. Since the sealing plate 502 is made of ferromagnetic material, the first electromagnet 503 is de-energized and the compressed support spring 504 is reset to push the gas into the gas channel 601. When the second electromagnet 606 is de-energized, the magnetic attraction between it and the rotating plate 605 disappears. Therefore, under the action of gravity, the rotating plate 605 will rotate downward around the fixed axis 604. After the rotating plate 605 rotates downward, it will be in contact with the gas channel 601. 01, so the rotating plate 605 seals the second branch 603. At this time, the gas will enter the first branch 602 and enter the upper channel 801 through the first branch 602. The gas entering the upper channel 801 will be blown to the side of the vacuum interrupter 2 through the second connecting channel 802. The vacuum interrupter 2 will isolate the arc when the circuit is broken and generate high temperature. The gas blown to the side of the vacuum interrupter 2 will cool the vacuum interrupter 2, and the cooling work can be automatically performed when the power is off. When the fault is eliminated and the closing is completed, the sealing plate 502 and the rotating plate 605 are energized again to reset the equipment.

[0047] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air-insulated circuit breaker for an outdoor switch box, comprising a mounting platform (1), characterized in that: An insulator (4) is fixedly connected to one side of the top of the mounting platform (1), and a vacuum interrupter (2) is fixedly connected to the other side of the top of the mounting platform (1); a knife switch (3) is movably connected to the side of the vacuum interrupter (2) close to the mounting platform (1); the bottom end of the knife switch (3) away from the side of the vacuum interrupter (2) is connected to the top of the insulator (4); a gas mechanism (5) is fixedly connected to the side of the mounting platform (1) away from the insulator (4); a shunt mechanism (6) is fixedly connected to the side of the gas mechanism (5); a cooling component (8) is fixedly connected to the top of the shunt mechanism (6) away from the side of the gas mechanism (5); and an antifreeze component (7) is fixedly connected to the bottom end of the shunt mechanism (6) away from the side of the gas mechanism (5); The gas mechanism (5) comprises a gas box (501) filled with gas, the interior of the gas box (501) is movably connected to a sealing plate (502), and the sealing plate (502) seals the interior of the gas box (501). The four corners of the gas box (501) close to the side of the branch mechanism (6) are fixedly connected to the first electromagnet (503), and the four corners of the gas box (501) away from the first electromagnet (503) are movably connected to support springs (504), and both sides of the support springs (504) are in contact with the interior of the gas box (501) and the side of the sealing plate (502).

2. The air-insulated circuit breaker for an outdoor switch box according to claim 1, characterized in that: The side of the mounting platform (1) away from the gas mechanism (5) is fixedly connected to a mounting frame (9), the top of the mounting frame (9) is fixedly connected to a smart camera (10), the side of the mounting platform (1) away from the smart camera (10) is fixedly connected to a control terminal (12), the top of the mounting platform (1) is fixedly connected to a temperature collector (11), and the smart camera (10) collects image data information at the connection between the switch (3) and the insulator (4) and sends it to the control terminal (12).

3. The air-insulated circuit breaker for an outdoor switch box according to claim 2, characterized in that: The control terminal (12) receives the image data information sent by the smart camera (10) and calculates the proportional characteristic value F. The calculation formula of the proportional characteristic value F is: Wherein ||B|| is the perimeter of the region where the switch blade (3) contacts the insulator (4), and A is the area of the region where the switch blade (3) contacts the insulator (4). When the control terminal (12) detects a change in the proportional characteristic value F, the control gas mechanism (5) is operated.

4. The air-insulated circuit breaker for an outdoor switch box according to claim 1, characterized in that: The four corners of the sealing plate (502) away from the side of the first electromagnet (503) are fixedly connected to the limiting cylinder (505), the limiting rod (506) is movably connected inside the limiting cylinder (505), the limiting rod (506) is fixedly connected to the inside of the gas box (501) away from the side of the limiting cylinder (505), the limiting cylinder (505) and the limiting rod (506) are located in the support spring (504), and the side of the gas box (501) away from the support spring (504) is connected to the branch mechanism (6).

5. The air-insulated circuit breaker for an outdoor switch box according to claim 1, characterized in that: The branch mechanism (6) comprises a gas channel (601) for receiving gas in the gas mechanism (5); the top end of the gas channel (601) away from the side of the gas mechanism (5) is fixedly connected to a first branch (602); and the bottom end of the gas channel (601) away from the side of the gas mechanism (5) is fixedly connected to a second branch (603); the bottom end of the first branch (602) is fixedly connected to the top end of the second branch (603).

6. The air-insulated circuit breaker for an outdoor switch box according to claim 5, characterized in that: The connection between the first branch (602) and the second branch (603) is movably connected to a rotating plate (605), the interior of the rotating plate (605) is movably connected to a fixed shaft (604), both sides of the fixed shaft (604) are fixedly connected to the interior of the gas channel (601), the top of the gas channel (601) close to the first branch (602) is fixedly connected to a second electromagnet (606), and the top of the rotating plate (605) is in contact with the bottom of the second electromagnet (606).

7. The air-insulated circuit breaker for an outdoor switch box according to claim 1, characterized in that: The antifreeze assembly (7) comprises a heating channel (701) for receiving gas from the second branch (603) in the branch mechanism (6); a lower channel (702) is fixedly connected to a side of the heating channel (701); a first connecting channel (703) is fixedly connected to a side of the lower channel (702) away from the heating channel (701); a gas nozzle (704) is fixedly connected to a side of the first connecting channel (703) away from the lower channel (702); and a gas outlet of the gas nozzle (704) is located at the connection between the switch (3) and the insulator (4).

8. The air-insulated circuit breaker for an outdoor switch box according to claim 1, characterized in that: The cooling assembly (8) comprises an upper channel (801) for receiving gas from a first branch (602) in a branch mechanism (6); the top of the upper channel (801) is fixedly connected to a second connecting channel (802); the side of the second connecting channel (802) is fixedly connected to an acceleration outlet (803); and the gas outlet of the acceleration outlet (803) is located on the side of the vacuum interrupter (2).

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