CN113643930A - High-safety vacuum circuit breaker with automatic fire extinguishing function - Google Patents
High-safety vacuum circuit breaker with automatic fire extinguishing function Download PDFInfo
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- CN113643930A CN113643930A CN202110933821.0A CN202110933821A CN113643930A CN 113643930 A CN113643930 A CN 113643930A CN 202110933821 A CN202110933821 A CN 202110933821A CN 113643930 A CN113643930 A CN 113643930A
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- fixedly connected
- shell
- vacuum
- circuit breaker
- vacuum circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a high-safety vacuum circuit breaker with an automatic fire extinguishing function, and relates to the field of distribution electrical equipment. This high security vacuum circuit breaker with automatic fire extinguishing function, which comprises an outer shell, the inboard right part of shell passes through mounting panel fixedly connected with fixed plate, vacuum tube top end fixedly connected with decides the contact, vacuum tube bottom sliding connection has the moving contact, the inside through-hole that is provided with of baffle, the inboard left part top fixedly connected with temperature sensor of shell, the inboard right part top fixedly connected with smoke transducer of shell, the gas distribution pipe outside is provided with the water conservancy diversion hole, nitrogen gas compression tank top end fixedly connected with check valve, fixedly connected with filter screen between the storage frame top outside and the bottom outside, lead screw outside threaded connection has the fly leaf. After the vacuum circuit breaker detects a fire, oxygen in the shell of the vacuum circuit breaker is quickly expelled and absorbed, the fire is extinguished timely and efficiently, and the vacuum circuit breaker is worthy of great popularization.
Description
Technical Field
The invention relates to the field of distribution electrical equipment, in particular to a high-safety vacuum circuit breaker with an automatic fire extinguishing function.
Background
The vacuum circuit breaker is an electrical device which can rapidly extinguish electric arcs and restrain current after a circuit cuts off a power supply, can avoid accidents and accidents, has the capacity of protecting circuits and power supplies, and is commonly used for power transmission and distribution control systems of electric power.
In vacuum circuit breaker in-service use process, the risk that has because of improper operation or line fault produces the fire incident, consequently for vacuum circuit breaker is equipped with automatic fire extinguishing device and can improves vacuum circuit breaker's security performance, current vacuum circuit breaker can't effectively extinguish the conflagration, if there is proruption electric power accident, then vacuum circuit breaker exists the risk that loses protection circuit and power ability.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a high-safety vacuum circuit breaker with an automatic fire extinguishing function, which solves the problem of insufficient fire extinguishing capability of the vacuum circuit breaker.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-safety vacuum circuit breaker with an automatic fire extinguishing function comprises a shell, wherein the right part of the inner side of the shell is fixedly connected with a fixed plate through a mounting plate, the inner side of the fixed plate is fixedly connected with a vacuum tube, the top end of the vacuum tube is fixedly connected with a fixed contact, the bottom end of the vacuum tube is slidably connected with a moving contact, the bottom ends of the left side and the right side of the fixed plate are fixedly connected with first electromagnets, four corners of the bottom end of the fixed plate are fixedly connected with guide rods, the outer side of each guide rod is provided with a reset spring, the outer side of the lower part of the moving contact is fixedly connected with an adjusting plate, the bottom end of each guide rod is provided with an air spring, the top ends of the left side and the right side of the adjusting plate are fixedly connected with second electromagnets, the two second electromagnets are respectively positioned under the two first electromagnets, the left side of the vacuum tube is fixedly connected with a connecting tube, and the inner side of the connecting tube is fixedly connected with a baffle plate, the baffle is internally provided with a through hole, the left end of the connecting pipe is fixedly connected with a vacuum valve, the vacuum valve is connected with a vacuum pump through a guide pipe, the lower side of the vacuum pump is provided with a controller, the top end of the left part inside the shell is fixedly connected with a temperature sensor, the top end of the right part inside the shell is fixedly connected with a smoke sensor, the middle parts of the front end and the rear end inside the shell are fixedly connected with air distribution pipes, the outer side of each air distribution pipe is provided with a flow guide hole, the bottom of the left end of the shell is fixedly connected with a nitrogen compression tank, the top end of the nitrogen compression tank is fixedly connected with a one-way valve, the top end of the one-way valve is fixedly connected with a flow distribution pipe, the left end and the right end of the flow distribution pipe are respectively connected with two air distribution pipes through guide pipes, the front end and the rear end of the left side and the right side of the shell are both fixedly connected with a storage frame, the outer side of the storage frame is fixedly connected with a bearing plate, and a filter screen is fixedly connected between the outer side of the top and the bottom outer side of the storage frame, the filter screen is characterized in that the sleeve is connected to the outer side of the filter screen in a sliding mode, the supporting frame is fixedly connected to the top end of the shell, the motor is fixedly connected to the middle of the top end of the supporting frame, the screw rod is fixedly connected to the output end of the motor, the movable plate is connected to the outer side of the screw rod in a threaded mode, and ventilation openings are formed in the left end and the right end of the shell.
Preferably, the outer side of the bottom end of the storage frame is fixedly connected with a sealing groove, the outer side of the bottom end of the sleeve is fixedly connected with a sealing ring, the sealing ring is in interference fit with the sealing groove, the bearing plate is fixedly connected to the inner side of the filter screen, and the sleeve is slidably connected to the outer side of the storage frame.
Preferably, the sleeve is fixedly connected with the movable plate, the movable plate is connected with the support frame in a sliding mode, the top of the screw rod is rotatably connected to the top of the support frame, the bottom of the screw rod is rotatably connected to the top of the shell, and the sleeve penetrates through the top of the shell.
Preferably, the adjacent through-holes in the baffle are staggered, the vacuum valve is fixedly connected to the top end of the fixing plate, and the vacuum pump and the controller are both fixedly connected to the left part of the inner side of the shell through the mounting plate.
Preferably, the four corners of the adjusting plate are respectively connected with the four guide rods in a sliding manner, and the reset spring is fixedly connected between the fixing plate and the adjusting plate.
Preferably, the air spring is fixedly connected to the bottom end of the inner side of the outer shell.
Preferably, the middle part of the bottom end of the inner side of the vacuum tube is fixedly connected with a corrugated tube, the corrugated tube is arranged on the outer side of the movable contact, the inner side of the vacuum tube is fixedly connected with a shielding cover, and the shielding cover is arranged on the outer sides of the fixed contact, the movable contact and the corrugated tube.
Preferably, the controller is electrically connected with the first electromagnet, the second electromagnet, the vacuum valve, the vacuum pump, the temperature sensor, the smoke sensor, the one-way valve and the motor through signal lines.
The working principle is as follows: when the vacuum circuit breaker is switched on, the first electromagnet and the second electromagnet are mutually repelled by the controller, the fixed contact is separated from the movable contact, metal steam is generated between the fixed contact and the movable contact, the metal steam is blocked by the shielding cover, through holes in adjacent baffles in the connecting pipe are mutually staggered, so that the baffles further play a role of blocking the metal steam, the metal steam in the vacuum pipe is prevented from entering the vacuum valve and damaging the vacuum valve, when the vacuum circuit breaker is switched on, the first electromagnet and the second electromagnet are mutually attracted by the controller, the movable contact is tightly attached to the fixed contact, and when a temperature sensor detects high temperature or smoke is detected by a smoke sensor, it has the fire incident then to explain, controller starter motor and check valve, it is rotatory that the motor drives the lead screw, the relative support frame of fly leaf slides, mention the sleeve, make sealing washer and seal groove separation, deposit the deoxidier on the loading board in the storage frame outside, nitrogen gas in the nitrogen gas compression jar passes through shunt tubes and pipe entering gas distribution pipe, nitrogen gas is spout from water conservancy diversion department, expel oxygen in the shell from vent department, simultaneously nitrogen gas is raised the deoxidier on with the loading board, increase deoxidier and the interior gaseous area of contact of shell, the filter screen blocks the deoxidier, prevent that the deoxidier from keeping away from the storage frame, the residual oxygen of shell is absorbed to the deoxidier, thereby the conflagration is gone out.
(III) advantageous effects
The invention provides a high-safety vacuum circuit breaker with an automatic fire extinguishing function. The method has the following beneficial effects:
1. according to the invention, the temperature sensor and the smoke sensor are used for detecting the surrounding environment information of the vacuum circuit breaker, when the vacuum circuit breaker is on fire, the motor and the one-way valve are started, the motor is matched with the screw rod, the movable plate and the support frame to lift the sleeve, so that the sealing ring is separated from the sealing groove, the deoxidizer is stored on the bearing plate outside the storage frame, nitrogen in the nitrogen compression tank enters the gas distribution pipe through the flow dividing pipe and the guide pipe, the nitrogen is sprayed out from the flow guiding hole to expel oxygen in the shell, meanwhile, the deoxidizer on the bearing plate is lifted by the nitrogen, the contact area between the deoxidizer and gas in the shell is increased, and the deoxidizer absorbs residual oxygen in the shell, so that the fire hazard is eliminated, the fire extinguishing effect is obvious, and the safety performance of the vacuum circuit breaker is effectively improved.
2. According to the invention, through holes of adjacent baffles in the connecting pipe are staggered, the baffles are matched with the shielding cover to block metal steam, the metal steam in the vacuum pipe is prevented from entering the vacuum valve and causing damage to the vacuum valve, the vacuum valve is opened when the vacuum valve is opened and the vacuum pump is started to vacuumize the vacuum pipe, the vacuum pipe is ensured to have higher vacuum degree, the probability of dissociative collision of gas molecules is low, electric arcs are easy to extinguish, the reliability of opening and closing is ensured, and the vacuum valve is worthy of great popularization.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of the inner structure of the vacuum tube according to the present invention;
FIG. 4 is a schematic view of a connecting tube of the present invention;
fig. 5 is a schematic view of the internal structure of the storage rack of the present invention.
Wherein, 1, a shell; 2. a fixing plate; 3. a vacuum tube; 4. fixing a contact; 5. a moving contact; 6. a first electromagnet; 7. a guide bar; 8. a return spring; 9. an adjusting plate; 10. an air spring; 11. a second electromagnet; 12. a connecting pipe; 13. a baffle plate; 14. a through hole; 15. a vacuum valve; 16. a vacuum pump; 17. a controller; 18. a temperature sensor; 19. a smoke sensor; 20. an air distribution pipe; 21. a flow guide hole; 22. A nitrogen compression tank; 23. a one-way valve; 24. a shunt tube; 25. a storage rack; 26. a carrier plate; 27. a filter screen; 28. a sleeve; 29. a support frame; 30. a motor; 31. a screw rod; 32. a movable plate; 33. a vent; 34. a sealing groove; 35. a seal ring; 36. a bellows; 37. a shield can.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-5, an embodiment of the present invention provides a high safety vacuum circuit breaker with an automatic fire extinguishing function, comprising a housing 1, a fixed plate 2 fixedly connected to the right portion of the inner side of the housing 1 through a mounting plate, a vacuum tube 3 fixedly connected to the inner side of the fixed plate 2, a fixed contact 4 fixedly connected to the top end of the vacuum tube 3, a movable contact 5 slidably connected to the bottom end of the vacuum tube 3, first electromagnets 6 fixedly connected to the bottom ends of the left and right sides of the fixed plate 2, guide rods 7 fixedly connected to four corners of the bottom end of the fixed plate 2, a return spring 8 arranged on the outer side of the guide rods 7, an adjusting plate 9 fixedly connected to the outer side of the lower portion of the movable contact 5, an air spring 10 arranged at the bottom end of the guide rods 7, second electromagnets 11 fixedly connected to the top ends of the left and right sides of the adjusting plate 9, two second electromagnets 11 respectively located under the two first electromagnets 6, a connecting tube 12 fixedly connected to the left side of the vacuum tube 3, a baffle 13 is fixedly connected to the inner side of the connecting pipe 12, a through hole 14 is arranged inside the baffle 13, a vacuum valve 15 is fixedly connected to the left end of the connecting pipe 12, the vacuum valve 15 is connected to a vacuum pump 16 through a duct, a controller 17 is arranged on the lower side of the vacuum pump 16, a temperature sensor 18 is fixedly connected to the top end of the left part of the inner side of the shell 1, a smoke sensor 19 is fixedly connected to the top end of the right part of the inner side of the shell 1, an air distribution pipe 20 is fixedly connected to the middle parts of the front and rear ends of the inner side of the shell 1, a flow guide hole 21 is arranged on the outer side of the air distribution pipe 20, a nitrogen compression tank 22 is fixedly connected to the bottom of the left end of the shell 1, a check valve 23 is fixedly connected to the top end of the nitrogen compression tank 22, a shunt pipe 24 is fixedly connected to the top end of the check valve 23, the left and right ends of the shunt pipe 24 are respectively connected to the two air distribution pipes 20 through ducts, a storage rack 25 is fixedly connected to the front and rear ends of the left and right sides of the shell 1, a bearing plate 26 is fixedly connected to the outer side of the storage rack 25, a filter screen 27 is fixedly connected between the outer side of the top and the outer side of the bottom of the material storage frame 25, a sleeve 28 is slidably connected to the outer side of the filter screen 27, a support frame 29 is fixedly connected to the top end of the housing 1, a motor 30 is fixedly connected to the middle of the top end of the support frame 29, a lead screw 31 is fixedly connected to the output end of the motor 30, a movable plate 32 is connected to the outer side of the lead screw 31 in a threaded manner, vents 33 are arranged at the left end and the right end of the housing 1, when the vacuum valve is opened and the vacuum valve is closed, a vacuum pump 16 is started, a vacuum tube 3 is vacuumized, the vacuum degree in the vacuum tube 3 is ensured, the probability of free collision of gas molecules is low, electric arcs are easy to extinguish, the reliability of the opening and the closing is ensured, when the vacuum circuit breaker is opened, the controller 17 enables the first electromagnet 6 and the second electromagnet 11 to repel each other, the fixed contact 4 and the movable contact 5 are separated, metal vapor is generated between the fixed contact 4 and the movable contact 5, and the shield 37 blocks the metal vapor, the through holes 14 in the adjacent baffles 13 in the connecting pipe 12 are staggered with each other, so that the baffles 13 further block metal steam, the metal steam in the vacuum pipe 3 is prevented from entering the vacuum valve 15 and damaging the vacuum valve 15, when the vacuum circuit breaker is switched on, the first electromagnet 6 and the second electromagnet 11 are attracted with each other by the controller 17, the movable contact 5 is tightly attached to the fixed contact 4, when the temperature sensor 18 detects high temperature or smoke by the smoke sensor 19, a fire accident is indicated, the controller 17 starts the motor 30 and the one-way valve 23, the motor 30 drives the screw rod 31 to rotate, the movable plate 32 slides relative to the support frame 29, the sleeve 28 is lifted, the sealing ring 35 is separated from the sealing groove 34, a deoxidizer is stored on the bearing plate 26 outside the storage frame 25, nitrogen in the nitrogen compression tank 22 enters the gas distribution pipe 20 through the shunt pipe 24 and the guide pipe, and is sprayed out from the guide hole 21, with the oxygen of shell 1 in the expulsion from vent 33, nitrogen gas simultaneously with the deoxidier of loading board 26 raise in filter screen 27, gaseous area of contact in increase deoxidier and the shell 1, filter screen 27 blocks the deoxidier, prevent that the deoxidier from keeping away from storage frame 25, the deoxidier absorbs the remaining oxygen of shell 1, thereby extinguish the conflagration, avoid vacuum circuit breaker impaired, guarantee that vacuum circuit breaker does not receive the harm to the protective capacities of circuit and power.
The sleeve 28 is fixedly connected with the movable plate 32, the movable plate 32 is slidably connected with the support frame 29, the top of the screw rod 31 is rotatably connected to the top of the support frame 29, the bottom of the screw rod 31 is rotatably connected to the top of the housing 1, the sleeve 28 penetrates through the top of the housing 1, and the support frame 29 limits the movable plate 32.
The through holes 14 in the adjacent baffles 13 are staggered with each other, the vacuum valve 15 is fixedly connected to the top end of the fixing plate 2, the vacuum pump 16 and the controller 17 are fixedly connected to the left part of the inner side of the shell 1 through the mounting plate, the baffles 13 are arranged in a plurality according to the actual length of the connecting pipe 12, and the through holes 14 in the baffles 13 are arranged in a plurality according to the actual inner diameter of the connecting pipe 12.
Four corners of the adjusting plate 9 are respectively connected with the four guide rods 7 in a sliding mode, the reset spring 8 is fixedly connected between the fixing plate 2 and the adjusting plate 9, and the reset spring 8 ensures that the moving contact 5 can still be lifted by the adjusting plate 9 under the condition that the first electromagnet 6 and the second electromagnet 11 are powered off, so that the moving contact 5 is attached to the fixed contact 4.
The middle part of the bottom end of the inner side of the vacuum tube 3 is fixedly connected with a corrugated tube 36, the corrugated tube 36 is arranged on the outer side of the movable contact 5, the inner side of the vacuum tube 3 is fixedly connected with a shielding cover 37, the shielding cover 37 is arranged on the outer sides of the fixed contact 4, the movable contact 5 and the corrugated tube 36, and the corrugated tube 36 reduces the vacuum degree reduction rate of the vacuum tube 3.
The controller 17 is electrically connected with the first electromagnet 6, the second electromagnet 11, the vacuum valve 15, the vacuum pump 16, the temperature sensor 18, the smoke sensor 19, the check valve 23 and the motor 30 through signal lines.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A high safety vacuum circuit breaker with automatic fire extinguishing function, comprising a case (1), characterized in that: the right part of the inner side of the shell (1) is fixedly connected with a fixed plate (2) through a mounting plate, the inner side of the fixed plate (2) is fixedly connected with a vacuum tube (3), the top end of the vacuum tube (3) is fixedly connected with a fixed contact (4), the bottom end of the vacuum tube (3) is slidably connected with a moving contact (5), the bottom ends of the left side and the right side of the fixed plate (2) are fixedly connected with first electromagnets (6), four corners of the bottom end of the fixed plate (2) are fixedly connected with guide rods (7), the outer side of each guide rod (7) is provided with a reset spring (8), the outer side of the lower part of the moving contact (5) is fixedly connected with an adjusting plate (9), the bottom end of each guide rod (7) is provided with an air spring (10), the top ends of the left side and the right side of the adjusting plate (9) are fixedly connected with second electromagnets (11) and the two second electromagnets (11) are respectively positioned under the two first electromagnets (6), the vacuum tube (3) is fixedly connected with a connecting tube (12) on the left side, a baffle (13) is fixedly connected with the inner side of the connecting tube (12), a through hole (14) is formed in the baffle (13), a vacuum valve (15) is fixedly connected with the left end of the connecting tube (12), the vacuum valve (15) is connected with a vacuum pump (16) through a catheter, a controller (17) is arranged on the lower side of the vacuum pump (16), a temperature sensor (18) is fixedly connected with the top end of the inner left part of the shell (1), a smoke sensor (19) is fixedly connected with the top end of the inner right part of the shell (1), a gas distribution tube (20) is fixedly connected with the middle parts of the front and rear ends of the inner side of the shell (1), a flow guide hole (21) is formed in the outer side of the gas distribution tube (20), a nitrogen compression tank (22) is fixedly connected with the bottom end of the left end of the shell (1), a one-way valve (23) is fixedly connected with the top end of the nitrogen compression tank (22), the top end of the one-way valve (23) is fixedly connected with a shunt tube (24), the left end and the right end of the shunt tube (24) are respectively connected with two gas distribution tubes (20) through guide tubes, the front end and the rear end of the left side and the right side of the shell (1) are both fixedly connected with a storage rack (25), a bearing plate (26) is fixedly connected with the outer side of the storage rack (25), a filter screen (27) is fixedly connected between the outer side of the top and the outer side of the bottom of the storage rack (25), the outer side of the filter screen (27) is connected with a sleeve (28) in a sliding way, the top end of the shell (1) is fixedly connected with a supporting frame (29), the middle part of the top end of the supporting frame (29) is fixedly connected with a motor (30), the output end of the motor (30) is fixedly connected with a screw rod (31), the outer side of the screw rod (31) is in threaded connection with a movable plate (32), and ventilation openings (33) are formed in the left end and the right end of the shell (1).
2. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: storage frame (25) bottom outside fixedly connected with seal groove (34), sleeve (28) bottom outside fixedly connected with sealing washer (35), sealing washer (35) and seal groove (34) interference fit, loading board (26) fixed connection is in the inboard of filter screen (27), sleeve (28) sliding connection is in the outside of storage frame (25).
3. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: sleeve (28) and fly leaf (32) fixed connection, fly leaf (32) and support frame (29) sliding connection, the top of lead screw (31) is rotated and is connected the top at support frame (29), the bottom of lead screw (31) is rotated and is connected the top at shell (1), sleeve (28) runs through shell (1) top.
4. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: adjacent through-hole (14) inside baffle (13) are crisscross each other, vacuum valve (15) fixed connection is on the top of fixed plate (2), vacuum pump (16) and controller (17) all pass through mounting panel fixed connection at the inboard left part of shell (1).
5. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: regulating plate (9) four corners respectively with four guide bar (7) sliding connection, reset spring (8) fixed connection is between fixed plate (2) and regulating plate (9).
6. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: the air spring (10) is fixedly connected to the bottom end of the inner side of the shell (1).
7. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: the middle part of the bottom end of the inner side of the vacuum tube (3) is fixedly connected with a corrugated tube (36), the corrugated tube (36) is arranged on the outer side of the movable contact (5), the inner side of the vacuum tube (3) is fixedly connected with a shielding cover (37), and the shielding cover (37) is arranged on the outer sides of the fixed contact (4), the movable contact (5) and the corrugated tube (36).
8. The high safety vacuum circuit breaker with automatic fire extinguishing function according to claim 1, characterized in that: the controller (17) is electrically connected with the first electromagnet (6), the second electromagnet (11), the vacuum valve (15), the vacuum pump (16), the temperature sensor (18), the smoke sensor (19), the one-way valve (23) and the motor (30) through signal lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933821.0A CN113643930A (en) | 2021-08-15 | 2021-08-15 | High-safety vacuum circuit breaker with automatic fire extinguishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110933821.0A CN113643930A (en) | 2021-08-15 | 2021-08-15 | High-safety vacuum circuit breaker with automatic fire extinguishing function |
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| Publication Number | Publication Date |
|---|---|
| CN113643930A true CN113643930A (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110933821.0A Pending CN113643930A (en) | 2021-08-15 | 2021-08-15 | High-safety vacuum circuit breaker with automatic fire extinguishing function |
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| CN (1) | CN113643930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724886A (en) * | 2021-12-14 | 2022-07-08 | 博时达集团有限公司 | Permanent magnet outdoor vacuum circuit breaker |
-
2021
- 2021-08-15 CN CN202110933821.0A patent/CN113643930A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724886A (en) * | 2021-12-14 | 2022-07-08 | 博时达集团有限公司 | Permanent magnet outdoor vacuum circuit breaker |
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