CN110047716B - Contact arc extinguishing device of breaker for high-voltage electrical equipment - Google Patents
Contact arc extinguishing device of breaker for high-voltage electrical equipment Download PDFInfo
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- CN110047716B CN110047716B CN201910449021.4A CN201910449021A CN110047716B CN 110047716 B CN110047716 B CN 110047716B CN 201910449021 A CN201910449021 A CN 201910449021A CN 110047716 B CN110047716 B CN 110047716B
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- fixedly connected
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- rod
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides a contact arc extinguishing device of a circuit breaker for high-voltage electrical equipment, and relates to the technical field of high-voltage electrical equipment. This circuit breaker contact arc extinguishing device for high-voltage electric, including ceramic package, the quiet end conducting block of top fixedly connected with of ceramic package, the bottom fixed mounting of quiet end conducting block has quiet end conducting rod, the below swing joint of quiet end conducting rod has the movable conducting rod in the ceramic package, the peripheral fixed mounting who moves the conducting rod has the connecting seat, the bottom fixedly connected with spring of connecting seat, the arc starting device is prevented to ceramic package's inside fixedly connected with. This a high-tension electricity is with circuit breaker contact arc extinguishing device, when contact separation and laminating, all have wind-force to blow away the free electron between the contact to play the effect of restraineing the arcing, effectively avoided electric arc to the burn of contact, can effectual arc extinguishing, avoided leading to the circuit contact failure because of electric arc, and the phenomenon of causing the conflagration.
Description
Technical Field
The invention relates to the technical field of high-voltage electricity, in particular to a contact arc-extinguishing device of a breaker for high-voltage electricity.
Background
In a high-voltage electrical circuit breaker, a contact which is responsible for breaking and closing a circuit is installed, but because the contact itself and a medium around the contact contain a large amount of electrons which can be dissociated, when a sufficient external voltage exists between the disconnected contacts and the circuit current reaches the minimum arc generation current, the electrons can be strongly dissociated to form an arc, a light person can burn the contact of the contact, so that the circuit is not contacted well, a heavy person can cause a fire disaster, and the circuit is broken down, so that an arc extinguishing device needs to be installed in the circuit breaker.
The most common vacuum arc extinguisher installed in the circuit breaker on the market at present is a vacuum arc extinguisher, but the generation of electric arc can not be effectively prevented, the damage of the generated electric arc to the outside is just avoided through a vacuum space, but the burn of the electric arc to a contact can not be effectively avoided, the service life of the contact is shortened, and therefore, the material requirement of the vacuum arc extinguisher to the contact is also very high.
Disclosure of Invention
The invention aims to provide a contact arc-extinguishing device of a high-voltage electric breaker, which has the advantages that when the contacts are separated and attached, free electrons between the contacts are blown away by wind power, so that the effect of inhibiting arcing is achieved, burning of the contacts by electric arcs is effectively avoided, arc can be effectively extinguished, and the phenomenon of fire caused by poor circuit contact due to the electric arcs is avoided.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a high-voltage is circuit breaker arc extinguishing device for electricity, includes ceramic package, quiet end conducting block, quiet end conducting rod, moves conducting rod, connecting seat, spring, prevents arcing device, arc control device, passageway.
The arc striking prevention device comprises a sleeve, a blowing device, a cylinder, a piston, a connecting rod, an air inlet, a fixed seat, a rubber film and an air outlet.
The arc extinguishing device comprises a bending rod, a contact pin and a wire holder.
Wherein:
the ceramic shell is characterized in that the top end of the ceramic shell is fixedly connected with a static end conductive block, the bottom end of the static end conductive block is fixedly provided with a static end conductive rod, the lower portion of the static end conductive rod in the ceramic shell is movably connected with a movable conductive rod, the periphery of the movable conductive rod is fixedly provided with a connecting seat, the bottom end of the connecting seat is fixedly connected with a spring, the inner portion of the ceramic shell is fixedly connected with an arc striking prevention device, and the front ends of the static end conductive rod and the movable conductive rod are fixedly connected with an arc extinguishing device.
Preferably, the equal fixedly connected with blast apparatus in telescopic both sides, the drum has been seted up to telescopic inside, the inside sliding connection of drum has the piston, the bottom fixed mounting of piston has the connecting rod, the other end fixed connection of connecting rod is at the both ends of connecting seat, the inlet port has been seted up to the periphery of drum, the inboard drill way department of inlet port is through fixing base fixedly connected with rubber membrane, the both sides fixedly connected with air outlet of quiet end conducting rod and the dynamic-conducting rod in the drum, when the inside gas of drum outwards flows, inside pressure can make rubber membrane and the drill way of inlet port attached mutually to plug up the inlet port, nevertheless through the clearance in rubber membrane initial position and drill way, can not influence the normal inflow of outside air, played the effect of check valve.
Preferably, the arc extinguishing device is including the pole that bends, contact pin, wire holder, the front end fixed mounting that quiet end conducting rod and the adjacent end of moving conducting rod have the pole that bends, the right side fixedly connected with contact pin of the pole that bends in the drum, the right-hand member fixedly connected with wire holder of contact pin, the wire holder passes through wire ground for the absorbed electric current of contact pin can flow into ground.
Preferably, blast apparatus distributes and is located telescopic left and right sides, and the left side blast apparatus sets up, the right side blast apparatus sets up down, the right side blast apparatus's right-hand member is linked together through the air outlet of passageway with the top, when moving the conducting rod and move down, left side blast apparatus suction air, and right side blast apparatus bloies, and when the conducting rod shifts up, left side blast apparatus bloies, and right side blast apparatus suction air.
The invention provides a contact arc-extinguishing device of a breaker for high-voltage electrical use. The method has the following beneficial effects:
1. this high-tension electricity is with circuit breaker contact arc extinguishing device, through the design of preventing the arc-starting device, when utilizing the contact to realize the cutting off and the closure of circuit, through moving the conducting rod move down with shift up with the cooperation of the blast apparatus of both sides for the contact is at the separation and the laminating time quantum of two easy arcs-starting, all has wind-force to blow away the free electron between the contact, thereby play the effect that restraines the arc-starting, effectively avoided electric arc to the burn of contact, the life of contact has been increased.
2. This high-tension electricity is with circuit breaker contact arc extinguishing device, design through arc extinguishing device, when the contact appears electric arc because of electron itself, utilize the pole design of bending, make electric arc move to the opening part of the pole of bending, thereby lengthen electric arc, with this effect that reaches the arc extinguishing, and great when the electric current, when electric arc can't break, absorb electric arc through contact pilotage, and the ground connection through the connection terminal, lead to the earth with the electric current and absorb, thereby reach effectual arc extinguishing effect, avoided leading to circuit contact failure because of electric arc, and the phenomenon of causing the conflagration.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 taken at A-A in accordance with the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
fig. 4 is a top view of the rubber membrane installation of the present invention.
In the figure: 1 ceramic shell, 2 quiet end conducting blocks, 3 quiet end conducting rods, 4 move conducting rods, 5 connecting seats, 6 springs, 7 arc striking prevention devices, 71 sleeves, 72 blowing devices, 73 cylinders, 74 pistons, 75 connecting rods, 76 air inlet holes, 77 fixing seats, 78 rubber films, 79 air outlets, 8 arc extinguishing devices, 81 bending rods, 82 contact pins, 83 wiring seats and 9 channels.
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.
The embodiment of the contact arc extinguishing device of the high-voltage electrical breaker comprises the following steps:
referring to fig. 1-4, an arc extinguishing device for a contact of a high voltage electrical circuit breaker includes a ceramic housing 1, a stationary end conductive block 2, a stationary end conductive rod 3, a movable conductive rod 4, a connecting seat 5, a spring 6, an arc-striking prevention device 7, an arc extinguishing device 8, and a channel 9.
Wherein, the arc striking prevention device 7 comprises a sleeve 71, a blowing device 72, a cylinder 73, a piston 74, a connecting rod 75, an air inlet 76, a fixed seat 77, a rubber film 78 and an air outlet 79.
The arc extinguishing device 8 includes a bending rod 81, a contact pin 82, and a wire holder 83.
Wherein:
the top end of the ceramic shell 1 is fixedly connected with a static end conducting block 2, the bottom end of the static end conducting block 2 is fixedly provided with a static end conducting rod 3, the lower part of the static end conducting rod 3 in the ceramic shell 1 is movably connected with a movable conducting rod 4, the periphery of the movable conducting rod 4 is fixedly provided with a connecting seat 5, the bottom end of the connecting seat 5 is fixedly connected with a spring 6, the interior of the ceramic shell 1 is fixedly connected with an anti-arcing device 7, both sides of a sleeve 71 are fixedly connected with blowing devices 72, the blowing devices 72 are distributed at the left side and the right side of the sleeve 71, the left side blowing device 72 is arranged upwards, the right side blowing device 72 is arranged downwards, the right end of the right side blowing device 72 is communicated with an air outlet 79 above through a channel 9, when the movable conducting rod 4 moves downwards, the left side blowing device 72 sucks conductive air, the right side blowing device 72 blows air, and when the movable conducting rod, the right side blowing device 72 sucks air, a cylinder 73 is arranged in the sleeve 71, a piston 74 is connected in the cylinder 73 in a sliding manner, a connecting rod 75 is fixedly arranged at the bottom end of the piston 74, the other end of the connecting rod 75 is fixedly connected to two ends of the connecting seat 5, an air inlet 76 is arranged on the periphery of the cylinder 73, a rubber film 78 is fixedly connected to an opening on the inner side of the air inlet 76 through a fixing seat 77, air outlets 79 are fixedly connected to two sides of the static end conducting rod 3 and the movable conducting rod 4 in the cylinder 73, when the air in the cylinder 73 flows outwards, the rubber film 78 is attached to the opening of the air inlet 76 by the internal pressure, so that the air inlet 76 is blocked, but the normal inflow of the outside air cannot be influenced through a gap between the initial position of the rubber film 78 and the opening, the function of a one-way valve is realized, through the design of the arc-, through moving the moving down of conducting rod 4 and moving up with the cooperation of blast apparatus 72 of both sides for the contact is in separation and two time quantum of striking easily of laminating, all has wind-force to blow off the free electron between the contact, thereby plays the effect that prevents the striking, has effectively avoided the electric arc to the burn of contact, has increased the life of contact.
The front ends of the static end conducting rod 3 and the movable conducting rod 4 are fixedly connected with an arc extinguishing device 8, the arc extinguishing device 8 comprises a bending rod 81, a contact pin 82 and a wire holder 83, the front end of the adjacent end of the static end conducting rod 3 and the movable conducting rod 4 is fixedly provided with the bending rod 81, the right side of the bending rod 81 in the cylinder 73 is fixedly connected with the contact pin 82, the right end of the contact pin 82 is fixedly connected with the wire holder 83, the wire holder 83 is grounded through a conducting wire, so that the current absorbed by the contact pin 82 can flow into the ground, through the design of the arc extinguishing device 8, when the contact generates the electric arc due to the electron per se, the electric arc moves to the opening of the bending rod 81 by utilizing the design of the bending rod 81, so that the electric arc is elongated, thereby the arc extinguishing effect is achieved, and when the current is large and the electric arc cannot be pulled off, the contact pin absorbs the electric arc through the 82, thereby reach effectual arc extinguishing effect, avoided leading to the circuit contact failure because of electric arc, and the phenomenon that causes the conflagration.
When the device is used, when a circuit needs to be cut off, the movable conducting rod 4 moves downwards through the driving device, so that the static end conducting rod 3 is separated from the movable conducting rod 4, the effect of cutting off the circuit is achieved, the connecting rod 75 can push the piston 74 to move downwards in the process that the movable conducting rod 4 moves downwards, when the piston 74 in the right side blowing device 72 moves downwards, the rubber film 78 can be attached to the hole at the inner side of the air inlet hole 76 due to the internal pressure, the air inlet hole 76 is blocked, the air in the air is blown out from the air outlet 79 through the channel 9, the free electrons at the front gap between the static end conducting rod 3 and the movable conducting rod 4 are blown, the generation of electric arcs when the static end conducting rod 3 and the movable conducting rod 4 are separated is avoided, and when the piston 74 in the left side blowing device 72 moves downwards, the external air can be sucked into the cylinder 73 through the air inlet hole 76, similarly, when the circuit needs to be closed and the moving conducting rod 4 moves upwards, the piston 74 on the left side moves upwards to blow out air in the cylinder 73 from the air outlet 79 on the right end, so that free electrons are blown, the outside air is sucked into the cylinder 73 on the right side through the piston 74 on the right side, when the contact is in an arc due to electrons, the arc is moved to the opening of the bending rod 81 by using the design of the bending rod 81 at the adjacent end of the static conducting rod 3 and the moving conducting rod 4, so that the arc is elongated, the arc extinguishing effect is achieved, and when the current is large and the arc cannot be broken, the arc is absorbed through the contact pin 82, and the current is absorbed to the ground through the grounding of the connector base 83.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (3)
1. The utility model provides a circuit breaker arc extinguishing device for high-voltage electrical, includes ceramic package (1), its characterized in that: the ceramic shell comprises a ceramic shell (1), wherein a top end fixedly connected with static end conductive block (2) is arranged on the ceramic shell (1), a static end conductive rod (3) is fixedly arranged at the bottom end of the static end conductive block (2), a movable conductive rod (4) is movably connected to the lower portion of the static end conductive rod (3) in the ceramic shell (1), a connecting seat (5) is fixedly arranged on the periphery of the movable conductive rod (4), a spring (6) is fixedly connected to the bottom end of the connecting seat (5), an arc striking prevention device (7) is fixedly connected to the interior of the ceramic shell (1), the static end conductive rod (3) and the front end of the movable conductive rod (4) are fixedly connected with an arc extinguishing device (8), and the arc striking prevention device (7) comprises a sleeve (71), an air blowing device (72), a cylinder (73), a piston (74), a connecting rod (75), an air inlet (76), a fixing seat (77, Air outlet (79), the equal fixedly connected with blast apparatus (72) in both sides of sleeve (71), drum (73) have been seted up to the inside of sleeve (71), the inside sliding connection of drum (73) has piston (74), the bottom fixed mounting of piston (74) has connecting rod (75), the other end fixed connection of connecting rod (75) is at the both ends of connecting seat (5), inlet port (76) have been seted up to the periphery of drum (73), fixing base (77) fixedly connected with rubber membrane (78) are located through the orifice of inlet port (76) inboard, both sides fixedly connected with air outlet (79) of quiet end conducting rod (3) and movable conducting rod (4) in drum (73).
2. The contact arc extinguishing device of the high-voltage electric breaker according to claim 1, characterized in that: arc control device (8) are including bending pole (81), contact pin (82), wire holder (83), the front end fixed mounting who bends pole (81) of quiet end conducting rod (3) and move the adjacent end of conducting rod (4), the right side fixedly connected with contact pin (82) of pole (81) of bending in institute drum (73), the right-hand member fixedly connected with wire holder (83) of contact pin (82).
3. The contact arc extinguishing device of the high-voltage electric breaker according to claim 2, characterized in that: the air blowing device (72) is distributed on the left side and the right side of the sleeve (71), the air blowing device (72) is arranged upwards on the left side, the air blowing device (72) is arranged downwards on the right side, and the right end of the air blowing device (72) is communicated with an air outlet (79) above through a channel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449021.4A CN110047716B (en) | 2019-05-28 | 2019-05-28 | Contact arc extinguishing device of breaker for high-voltage electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449021.4A CN110047716B (en) | 2019-05-28 | 2019-05-28 | Contact arc extinguishing device of breaker for high-voltage electrical equipment |
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| CN110047716A CN110047716A (en) | 2019-07-23 |
| CN110047716B true CN110047716B (en) | 2020-09-25 |
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| CN201910449021.4A Active CN110047716B (en) | 2019-05-28 | 2019-05-28 | Contact arc extinguishing device of breaker for high-voltage electrical equipment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110838418A (en) * | 2019-12-02 | 2020-02-25 | 大唐东营发电有限公司 | Control valve arc extinguishing device for thermal power plant |
| CN114256011B (en) * | 2021-11-30 | 2024-08-09 | 国网江苏省电力有限公司盐城供电分公司 | Arc breakdown preventing high-voltage direct-current breaker |
| CN116994912B (en) * | 2023-09-25 | 2023-12-22 | 新乡市镇华电力科技有限公司 | Indoor high-voltage vacuum circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09282982A (en) * | 1996-04-18 | 1997-10-31 | Hitachi Ltd | Synchronous type gas-blast load breaker |
| CN1309405A (en) * | 2000-01-24 | 2001-08-22 | 富士电机株式会社 | Buffer gas circuit breaker |
| JP2015005327A (en) * | 2011-09-06 | 2015-01-08 | 株式会社日立製作所 | Puffer type gas breaker |
| CN105448591B (en) * | 2015-11-27 | 2018-04-13 | 河南平芝高压开关有限公司 | The trigger device of air suction type arc extinguishing and the earthing switch using the device |
| AU2017253327B2 (en) * | 2016-04-22 | 2019-06-20 | Mitsubishi Electric Corporation | Contactor device for circuit breaker and circuit breaker using same contactor device |
| CN208637359U (en) * | 2018-10-11 | 2019-03-22 | 西安西电开关电气有限公司 | The expansible chamber device of self-energy arc-extinguishing chamber |
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Effective date of registration: 20200825 Address after: 317000 Yongan industrial cluster, Xianju County, Taizhou City, Zhejiang Province Applicant after: XIYI ELECTRICITY Co.,Ltd. Address before: 310012 Room 1110, 29 Huanggushan Road, Xihu District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou Junpo Technology Co.,Ltd. |
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Address after: Yongan Industrial Cluster, Xianju County, Taizhou City, Zhejiang Province, 318000 Patentee after: Xiyi Electric Group Co.,Ltd. Address before: 317000 Yong'an Industrial Cluster, Xianju County, Taizhou City, Zhejiang Province Patentee before: XIYI ELECTRICITY CO.,LTD. |