A vacuum chamber monitoring and early warning device for outdoor high-voltage AC vacuum circuit breaker

Abstract

The invention relates to the technical field of vacuum circuit breaker alarms, and discloses a vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker, comprising a shell and a circuit breaker, wherein the circuit breaker is located inside the shell, a trigger structure is provided on one side of the shell, a control structure is provided on the top of the shell, a base is provided on the bottom of the shell, current transformers are provided on the top and bottom of the other side of the shell, a placement box is fixedly provided on the bottom of one side of the shell, an air inlet pipe is provided on the bottom of the front of the placement box, and the vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker provided by the invention has a trigger structure and a control structure, which can be coordinated with a telescopic airbag for linkage control, and the trigger structure can control the mutual circulation of oily liquids in an internal tube and an external tube through the principle of changing the internal negative pressure by switching the vacuum environment in the vacuum arc extinguishing chamber and the environment after leakage, so as to perform real-time detection on whether the vacuum environment is leaking.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum circuit breakers, in particular to a vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker. Background Art

[0002] In the patent application with application publication number CN118588492A, it includes a box, a sealed pole, a magnetic control mechanism and an isolating knife switch mechanism; wherein the sealed pole includes a pole body arranged outside the box, a vacuum arc extinguishing chamber arranged inside the pole body and a soft busbar; the pole body is provided with an incoming line terminal and an outgoing line terminal; the static end of the vacuum arc extinguishing chamber passes through the pole reserved hole arranged on the pole body and is connected to the incoming line terminal; the magnetic control mechanism is arranged in the box, the moving end of the vacuum arc extinguishing chamber is connected to the magnetic control mechanism, and the magnetic control mechanism is used to control the closing and opening of the vacuum arc extinguishing chamber. The advantages are: the closing and opening of the vacuum arc extinguishing chamber is realized, and the abnormal problems such as jamming in the closing and opening process caused by the multi-stage transmission of the spring mechanism in the prior art are avoided.

[0003] In the prior art including the above-mentioned patents, since the vacuum circuit breaker is located in an outdoor environment, when it is subjected to long-term erosion by wind and sun or collision, the outer shell will be damaged, affecting the internal vacuum environment and the normal operation of the device. If it cannot be stopped and maintained in time, the subsequent operation of the entire device will be affected. During maintenance, if it is necessary to determine whether it needs to be replaced based on the size of the damaged part, when the damaged part is small, the user will need to spend more time searching. Summary of the invention

[0004] The problem to be solved by the present invention is that when a vacuum circuit breaker is damaged in an outdoor environment, air leakage may occur and timely warning notification and rapid positioning of the damaged position control panel are not possible.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker, comprising a housing and a circuit breaker, wherein the circuit breaker is located inside the housing, a trigger structure is provided on one side of the housing, a control structure is provided on the top of the housing, a base is provided on the bottom of the housing, current transformers are provided on the top and bottom of the other side of the housing, a placement box is fixedly provided on the bottom of one side of the housing, and an air inlet pipe is provided on the bottom of the front of the placement box;

[0006] The trigger structure includes an inner tube, a through hole is provided at the top of the inner tube, an intercommunication tube is fixedly connected at the bottom of the inner tube, an external tube is fixedly connected at the other side of the top of the intercommunication tube, a bracket is provided at one side of the external tube, one side of the bracket is fixedly connected to one side of the shell, an oily liquid is provided inside the inner tube, a drain pipe is fixedly connected at the bottom of the intercommunication tube, the drain pipe is Y-shaped, a sealing gasket is provided at one side of the drain pipe, a linkage plate is rotatably provided at the bottom of the drain pipe, the linkage plate is inclined and fits with the tube wall, a trigger is provided at the top of the inner wall of the external tube, a floating plate is slidably provided inside the external tube, a touch block is provided at the top of the floating plate, and the trigger is adapted to the touch block;

[0007] The control structure includes a box body, a cavity is opened inside the box body, an emulsion is placed inside the box body, one side of the top of the box body is fixedly connected with the bottom of the connecting pipe, a protective plate is arranged around the outer wall of the box body, a plurality of telescopic tubes are arranged in a circular array at the bottom of the box body, a nozzle is arranged at the bottom of the telescopic tubes, a control panel is rotatably arranged at the bottom of the inner wall of the box body, a plurality of connecting holes are opened in a circular array at the top of the control panel, a connecting rod is fixedly arranged on the top of the control panel, the top of the connecting rod passes through the box body and extends to the outside of the box body, and a control handle is arranged on the top of the connecting rod.

[0008] Preferably, one side of the placement box is open, a telescopic airbag is provided inside the placement box, a rotating shaft is provided on one side of the telescopic airbag, and a pressing plate is fixedly provided on one side of the rotating shaft.

[0009] Preferably, magnets are provided on the top and bottom of one side opposite to the pressing plate and the placing box, connecting seats are provided on the top and bottom of the other side of the pressing plate, and handles are rotatably connected to the bottoms of the inner walls of the two connecting seats.

[0010] Preferably, the tops of the front and back sides of the placement box are fixedly connected with connecting pipes, the tops of the two connecting pipes are fixedly connected with ventilation pipes, the tops of the ventilation pipes are L-shaped, and the tops of the ventilation pipes are fixedly connected with connecting pipes.

[0011] Preferably, a one-way valve tube is provided on the ventilation pipe, one side of the one-way valve tube is fixedly connected to one side of the shell, a valve plate is rotatably provided inside the one-way valve tube, and an exhaust port is provided at the top of one side of the one-way valve tube.

[0012] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0013] (1) The circuit breaker is equipped with a trigger structure and a control structure, both of which can be linked with the telescopic airbag for control. The trigger structure can change the internal negative pressure by switching between the vacuum environment in the vacuum interrupter and the normal environment after leakage to control the mutual circulation of oily liquids in the internal tube and the external tube to detect whether the vacuum environment is leaking in real time. After the vacuum interrupter is damaged, the oily liquid will lose the negative pressure suction and flow from the internal tube through the intercommunication tube into the external tube. The trigger is controlled by the movement of the floating plate to issue an error prompt to alert the staff to carry out repairs in time. The early warning speed is fast, the monitoring is more timely and rapid, and the oily liquid can be better preserved outdoors without evaporation;

[0014] (2) The control structure can protect the shell in daily outdoor conditions through the cooperation of the box and the protective plate, and can play the role of sunshade and rainproof. When the shell is damaged and the internal vacuum environment changes, the shell is large as a whole and the damaged part is not easy to detect. The user can press the telescopic airbag to inflate the box. When the air pressure in the box is high, turn the control panel to allow the injected air to squeeze the emulsion into the nozzle and spray it out, covering the surface of the shell. As the airbag is filled with air, the vacuum arc extinguishing chamber is also filled with air. The leaking position is covered by the emulsion and foams back, allowing the user to quickly locate the damaged position;

[0015] (3) When not in use, the telescopic airbag can be stored in the storage box with the help of the magnets on the pressing plate. When in use, the pressing plate is provided with a double-holding handle to facilitate the user to press the telescopic airbag to inflate the outer shell and the box. The magnets on the pressing plate also have two changes. When stored, they are in an attractive state. When pressing, the pressing plate can be rotated 180 degrees with the rotation axis as the center, and the magnetic poles of the two magnets are swapped, from attraction to repulsion. In this way, the user will save effort and convenience when pressing, and they will not be attracted to each other and affect the user's inflation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the housing structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the vacuum circuit breaker of the present invention;

[0019] Figure 4 It is a right side schematic diagram of the structure of the vacuum circuit breaker of the present invention;

[0020] Figure 5 This is a schematic diagram of the one-way valve tube structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the plate structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the support structure of the present invention;

[0023] Figure 8 It is a schematic diagram of the ventilation pipe structure of the present invention;

[0024] Fig. 9 This is a schematic diagram of the handle structure of the present invention;

[0025] Fig.10 This is a schematic diagram of the internal structure of the built-in tube of the present invention;

[0026] Fig.11 This is a schematic diagram of the control handle structure of the present invention;

[0027] Fig.12 It is a schematic diagram of the structure of the nozzle of the present invention;

[0028] Fig.13 It is a schematic diagram of the structure of the control panel of the present invention.

[0029] In the figure: 1. control structure; 101. protective plate; 102. nozzle; 103. telescopic tube; 104. box; 105. control handle; 106. connecting rod; 107. connecting hole; 108. control board; 2. shell; 3. one-way valve tube; 4. trigger structure; 401. interconnecting tube; 402. internal tube; 403. external tube; 404. bracket; 405. drain pipe; 406. sealing gasket; 407. linkage plate; 408. floating plate; 409. trigger; 5. current transformer; 6. base; 7. vent pipe; 8. rotating shaft; 9. press plate; 10. circuit breaker; 11. connecting pipe; 12. handle; 13. air inlet pipe; 14. connecting seat; 15. valve plate; 16. connecting pipe; 17. magnet; 18. placement box; 19. telescopic airbag. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figures 1 to 13 As shown, a vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker provided by the present invention comprises a housing 2 and a circuit breaker 10, wherein the circuit breaker 10 is located inside the housing 2, a trigger structure 4 is provided on one side of the housing 2, a control structure 1 is provided on the top of the housing 2, a base 6 is provided on the bottom of the housing 2, a current transformer 5 is provided on the top and bottom of the other side of the housing 2, a placement box 18 is fixedly provided on the bottom of one side of the housing 2, and an air inlet pipe 13 is provided on the bottom of the front of the placement box 18;

[0033] The trigger structure 4 includes an internal tube 402, a through hole is provided at the top of the internal tube 402, an interconnecting tube 401 is fixedly connected to the bottom of the internal tube 402, an external tube 403 is fixedly connected to the other side of the top of the interconnecting tube 401, a bracket 404 is provided on one side of the external tube 403, one side of the bracket 404 is fixedly connected to one side of the shell 2, an oily liquid is provided inside the internal tube 402, a drain pipe 405 is fixedly connected to the bottom of the interconnecting tube 401, the drain pipe 405 is Y-shaped, a sealing gasket 406 is provided on one side of the drain pipe 405, a linkage plate 407 is rotatably provided at the bottom of the drain pipe 405, the linkage plate 407 is inclined and fits the tube wall, a trigger 409 is provided on the top of the inner wall of the external tube 403, a floating plate 408 is slidably provided inside the external tube 403, a touch block is provided on the top of the floating plate 408, and the trigger 409 is adapted to the touch block;

[0034] The control structure 1 includes a box body 104, the interior of which is provided with a cavity, an emulsion is placed inside the box body 104, one side of the top of the box body 104 is fixedly connected to the bottom of the connecting tube 16, a protective plate 101 is arranged around the outer wall of the box body 104, a plurality of telescopic tubes 103 are arranged in a circular array at the bottom of the box body 104, a nozzle 102 is arranged at the bottom of the telescopic tube 103, a control panel 108 is rotatably arranged at the bottom of the inner wall of the box body 104, a plurality of connecting holes 107 are arranged in a circular array at the top of the control panel 108, a connecting rod 106 is fixedly arranged at the top of the control panel 108, the top of the connecting rod 106 passes through the box body 104 and extends to the outside of the box body 104, and a control handle 105 is arranged at the top of the connecting rod 106.

[0035] One side of the placement box 18 is in an open shape. A telescopic airbag 19 is provided inside the placement box 18 . A rotating shaft 8 is provided on one side of the telescopic airbag 19 . A pressing plate 9 is fixedly provided on one side of the rotating shaft 8 .

[0036] Magnets 17 are provided at the top and bottom of one side opposite to the pressing plate 9 and the placing box 18, and connecting seats 14 are provided at the top and bottom of the other side of the pressing plate 9. The bottoms of the inner walls of the two connecting seats 14 are rotatably connected with handles 12.

[0037] The tops of the front and back sides of the placement box 18 are fixedly connected with connecting pipes 11 , and the tops of the two connecting pipes 11 are fixedly connected with the ventilation pipe 7 . The top of the ventilation pipe 7 is L-shaped, and the top of the ventilation pipe 7 is fixedly connected with a connecting pipe 16 .

[0038] A one-way valve tube 3 is provided on the vent pipe 7, one side of the one-way valve tube 3 is fixedly connected to one side of the housing 2, a valve plate 15 is rotatably provided inside the one-way valve tube 3, and an exhaust port is provided at the top of one side of the one-way valve tube 3.

[0039] The working principle and use process of the present invention: The working principle and use process of the present invention: Before the circuit breaker 10 is put into use with the casing 2, the sealing gasket 406 is opened, and a certain amount of oily liquid is injected into the interconnecting tube 401 after opening. As the liquid is continuously injected, it will enter the external tube 403 and the internal tube 402, and then the sealing gasket 406 is closed. After closing, the casing 2 is evacuated to form a vacuum arc extinguishing chamber. As the vacuum is formed, the pressure difference in the casing 2 gradually decreases, and the oily liquid will be sucked into the internal tube 402, and the floating plate 408 will also drop to the bottom of the external tube 403. At this time, the device can be installed normally. When the casing 2 is broken and the internal vacuum environment is destroyed, the oily liquid will become in the vacuum environment. When the negative pressure state is released while changing to a normal environment, the oily liquid will instantly become a balanced state from the built-in tube 402. At this time, the changed oily liquid will also drive the float plate 408 to move upward along the inner wall of the external tube 403 to hit the trigger 409. The trigger 409 will synchronously send the situation to the remote port to give the user an immediate warning. After the warning is over, when the user comes to maintain the damaged part, if the damaged part is small and inconvenient to observe and locate quickly, the sealing gasket 406 can be opened again to discharge the oily liquid inside. After the discharge, the trigger 409 cancels the warning, and then the sealing gasket 406 is closed and the handle 12 is pulled. After the handle 12 is subjected to force, it drives the pressing plate 9 to move backward, and the pressing plate 9 moves from the magnetic side of the placement box 18. The pressing plate 9 is separated from the iron 17, and after separation, the pressing plate 9 is rotated to rotate 180° with the rotating shaft 8 as the center. After rotation, the two magnets 17 that attract each other become repelling each other. At this time, the pressing plate 9 can be pushed and pulled, and the pressing plate 9 blows air to the drain pipe 405 and the connecting pipe 11 through the telescopic airbag 19. When the drain pipe 405 is blown, the one-way rotating linkage plate 407 will rotate upward and open, and the blown air will enter the shell 2 through the intercommunication pipe 401 and the built-in pipe 402 to inflate the shell 2. After the air is inflated and replenished in the shell 2, the gas will leak out from the damaged part. At this time, another part of the air will enter the connecting pipe 11 and pass through the one-way valve pipe 3 and push open the valve plate 15 to enter the box body 104 along the ventilation pipe 7 and the connecting pipe 16. As more and more gas enters, when the air pressure in the box 104 is relatively high, you can hold the control handle 105 and rotate it, and the control handle 105 will rotate through the connecting rod 106, and the connecting rod 106 will drive the control board 108 to rotate. When the connecting hole 107 provided on the control board 108 overlaps with the top opening position of the telescopic tube 103 provided at the bottom of the box 104, the emulsion in the box 104 will be sprayed outward from the nozzle 102 (a liquid outlet hole is provided at the bottom of the box 104. When the control board 108 is not rotated, the connecting hole 107 on the control board 108 and the liquid outlet hole are staggered to form a seal. When the two holes overlap with the rotation, the emulsion will be discharged), and the surface of the shell 2 is evenly sprayed. At this time, the inside of the shell 2 is exhausting the gas outward.The emulsion attached to the damaged part will foam when it comes into contact with the airflow, similar to the principle of foam produced by blowing soapy water, allowing users to quickly locate the damaged part without having to search for it step by step.

[0040] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A vacuum chamber monitoring and early warning device for an outdoor high-voltage AC vacuum circuit breaker, comprising a housing (2) and a circuit breaker (10), wherein the circuit breaker (10) is located inside the housing (2), and is characterized in that: A trigger structure (4) is provided on one side of the housing (2), a control structure (1) is provided on the top of the housing (2), a base (6) is provided on the bottom of the housing (2), a current transformer (5) is provided on the top and bottom of the other side of the housing (2), a placement box (18) is fixedly provided on the bottom of one side of the housing (2), and an air inlet pipe (13) is provided on the bottom of the front side of the placement box (18); The trigger structure (4) comprises an internal tube (402), a through hole is formed at the top of the internal tube (402), an interconnecting tube (401) is fixedly connected to the bottom of the internal tube (402), an external tube (403) is fixedly connected to the other side of the top of the interconnecting tube (401), a bracket (404) is provided on one side of the external tube (403), one side of the bracket (404) is fixedly connected to one side of the housing (2), an oily liquid is provided inside the internal tube (402), and the bottom of the interconnecting tube (401) is fixedly connected to the external tube (403). A drainage pipe (405) is provided, the drainage pipe (405) is in a Y shape, a sealing pad (406) is provided on one side of the drainage pipe (405), a linkage plate (407) is rotatably provided at the bottom of the drainage pipe (405), the linkage plate (407) is in an inclined shape and fits with the pipe wall, a trigger (409) is provided at the top of the inner wall of the external pipe (403), a floating plate (408) is slidably provided inside the external pipe (403), a touch block is provided on the top of the floating plate (408), and the trigger (409) is adapted to the touch block; The control structure (1) comprises a box (104), wherein a cavity is provided inside the box (104), wherein an emulsion is placed inside the box (104), wherein one side of the top of the box (104) is fixedly connected to the bottom of the connecting tube (16), wherein a protective plate (101) is provided around the outer wall of the box (104), wherein a plurality of telescopic tubes (103) are provided at the bottom of the box (104) in a circular array, wherein a nozzle (102) is provided at the bottom of the telescopic tube (103), wherein a control panel (108) is rotatably provided at the bottom of the inner wall of the box (104), wherein a plurality of communication holes (107) are provided at the top of the control panel (108) in a circular array, wherein a connecting rod (106) is fixedly provided at the top of the control panel (108), wherein the top of the connecting rod (106) passes through the box (104) and extends to the outside of the box (104), and wherein a control handle (105) is provided at the top of the connecting rod (106).

2. The vacuum chamber monitoring and early warning device for outdoor high-voltage AC vacuum circuit breaker according to claim 1 is characterized in that: One side of the placement box (18) is open, a telescopic airbag (19) is provided inside the placement box (18), a rotating shaft (8) is provided on one side of the telescopic airbag (19), and a pressing plate (9) is fixedly provided on one side of the rotating shaft (8).

3. The vacuum chamber monitoring and early warning device for outdoor high-voltage AC vacuum circuit breaker according to claim 2 is characterized in that: The top and bottom of one side opposite to the pressing plate (9) and the placing box (18) are provided with magnets (17), the top and bottom of the other side of the pressing plate (9) are provided with connecting seats (14), and the bottoms of the inner walls of the two connecting seats (14) are rotatably connected with handles (12).

4. The vacuum chamber monitoring and early warning device for outdoor high-voltage AC vacuum circuit breaker according to claim 1 is characterized in that: The tops of the front and back sides of the placement box (18) are fixedly connected to connecting pipes (11), the tops of the two connecting pipes (11) are fixedly connected to the ventilation pipe (7), the tops of the ventilation pipes (7) are L-shaped, and the tops of the ventilation pipes (7) are fixedly connected to the connecting pipes (16).

5. The vacuum chamber monitoring and early warning device for outdoor high-voltage AC vacuum circuit breaker according to claim 4 is characterized in that: The ventilation pipe (7) is provided with a one-way valve pipe (3), one side of the one-way valve pipe (3) is fixedly connected to one side of the housing (2), a valve plate (15) is rotatably provided inside the one-way valve pipe (3), and an exhaust port is provided at the top of one side of the one-way valve pipe (3).

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