CN106356241A - High-stability high-pressure vacuum circuit breaker - Google Patents
High-stability high-pressure vacuum circuit breaker Download PDFInfo
- Publication number
- CN106356241A CN106356241A CN201611005007.8A CN201611005007A CN106356241A CN 106356241 A CN106356241 A CN 106356241A CN 201611005007 A CN201611005007 A CN 201611005007A CN 106356241 A CN106356241 A CN 106356241A
- Authority
- CN
- China
- Prior art keywords
- conductive rod
- chain drum
- absorber
- static
- power transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003068 static Effects 0.000 claims abstract description 70
- 230000005540 biological transmission Effects 0.000 claims description 92
- 239000006096 absorbing agent Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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- 239000004411 aluminium Substances 0.000 claims description 3
- 210000001215 Vagina Anatomy 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 230000002035 prolonged Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000037250 Clearance Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 230000023298 conjugation with cellular fusion Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
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- 210000001331 Nose Anatomy 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—BASIC 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
-
- H—ELECTRICITY
- H01—BASIC 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
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
Abstract
The invention discloses a high-stability high-pressure vacuum circuit breaker which comprises an insulating cylinder and a driving chamber, wherein a vacuum extinction chamber is arranged in the insulating cylinder; the upper and lower ends of the vacuum extinction chamber are respectively fixed in the insulating cylinder through an upper bracket and a lower bracket. The high-stability high-pressure vacuum circuit breaker further comprises an insulating pull rod, wherein a static conductive rod, a static contact, a moveable contact, a moveable conductive rod and a first corrugated pipe are arranged in the vacuum extinction chamber; the upper end of the static conductive rod penetrates through the vacuum extinction chamber and is fixed on the upper bracket; the lower end of the static conductive rod is fixed with the static contact and is in electric connection with the static contact; the lower end of the moveable conductive rod penetrates through the vacuum extinction chamber and is fixed on the lower bracket; the top end of the insulating pull rod is connected with the bottom end of the moveable conductive rod through a first spring; a driving mechanism which is used for driving the insulating pull rod to vertically move back and forth is arranged in the driving chamber. The structure is adopted by the invention, so that the service life of the corrugated pipe can be prolonged and the vacuum degree of the extinction chamber can be prevented from being influenced.
Description
Technical field
The present invention relates to high-voltage switch gear field, specifically a kind of high stability high-pressure vacuum breaker.
Background technology
High-pressure vacuum breaker, because the dielectric in its arc-extinguishing medium and arcing contact gap is all vacuum and gains the name, its
Have the advantages that small volume, lightweight, be applied to frequent operation, arc extinguishing without maintenance, apply in power distribution network and more popularize, very
Empty chopper is 3～10kv, the indoor distribution in 50hz three-phase alternating current system, is available for industrial and mining establishment, power plant, transformer station
The middle protection as electric equipment and control are used, and are particularly well-suited to require the use field of non-oil ultra high vacuum system, few maintenance and frequent operation
Institute, chopper is configurable on middle-placed switch cabinet, double-layer cabinet, fixes in cabinet and use as control and protection high voltage electric equipment.
High-pressure vacuum breaker generally comprise support, vacuum interrupter, galvanic circle, drive mechanism, insulating supporting and
Operating mechanism, support is used for installing each functional unit, and vacuum interrupter is used for extinguishing contact and is closing and producing when cut-offfing
Electric arc, galvanic circle is used for connecting and composing current channel with the moved end of vacuum interrupter and static side, and drive mechanism is used for actuating
The motion of mechanism is transmitted to vacuum interrupter, realizes closing, opens a sluice gate, and insulating supporting is used for each function element bridge joint gets up with full
Sufficient insulating requirements, operating mechanism is the Power Drive Unit for realizing chopper division.
At present, either split type or combined, high-pressure vacuum breaker at most by hundreds of mechanically and electrically
Element forms, and the Finish ＆ Workmanship defect of each parts, the link occlusion that cooperates will directly affect high pressure vacuum
The mechanical property of chopper.Such as, the high-pressure vacuum breaker of currently the majority adopts connecting rod as drive mechanism, and main connecting lever
The spindle nose gap connecting can become big with the increase of use time, and after operating mechanism makes action, its power can not be real
When ground reflect on drive mechanism, that is, the indoor contact of vacuum extinction can not be driven, so do not enable chopper point
Closing operation, leads to occur refusing to close, refuses a point fault, the time between overhauls(TBO) of chopper and service life accordingly shorten.
Further, the loop resistance of high-pressure vacuum breaker is the main heating source of impact temperature rise, and the loop resistance of arc-chutes
More than the 50% of high-pressure vacuum breaker loop resistance generally will be accounted for.Contact gap contact resistance is vacuum interrupter loop resistance
Key component because contact system to be sealed in vacuum extinction indoor, in order to ensure vacuum, the heat of generation can only lead to
Cross dynamic and static conducting rod to external cooling, and the thermally conductive pathways of moving conductive rod, static conductive rod are longer, so radiating efficiency is limited, from
And leading to the indoor temperature drift of vacuum extinction, high temperature can affect the fatigue strength of vacuum interrupter inner corrugated pipe, lead to ripple
The service life of pipe shortens, and then affects the vacuum of arc-chutes.
Content of the invention
It is an object of the invention to provide a kind of high stability high-pressure vacuum breaker, solve current high pressure vacuum open circuit
Easily there was a mechanical failure for device, leads to the affected problem of switching of chopper.
The present invention can also solve vacuum interrupter temperature drift, lead to the fatigue strength of corrugated tube impacted, and then lead to
The service life shortening of corrugated tube and the affected problem of vacuum of arc-chutes.
The purpose of the present invention is achieved through the following technical solutions:
A kind of high stability high-pressure vacuum breaker, including insulating cylinder and Transmission Room, is provided with vacuum in described insulating cylinder and goes out
Arc chamber, the upper and lower end of vacuum interrupter is fixed in insulating cylinder by upper bracket, lower carriage respectively, and described upper bracket is provided with
Upper wire outlet seat, described lower carriage is provided with lower wire outlet seat；
Described vacuum extinction interior is provided with static conductive rod, static contact, moving contact, moving conductive rod, the first corrugated tube, described quiet
The upper end of conducting rod passes vacuum interrupter and is fixed on upper bracket, and the lower end of static conductive rod and static contact are fixed and realized electricity
Connect, the lower end of described moving conductive rod passes vacuum interrupter and be fixed on lower carriage, the upper end of moving conductive rod and moving contact
Fix and realize to electrically connect, described moving conductive rod is worn and is connected to the first corrugated tube, one of port of described first corrugated tube
Sealing is fixed on moving conductive rod, and another port of the first corrugated tube and vacuum interrupter are realized sealing and fixed；
Also include insulated tension pole, the top of described insulated tension pole is passed through first spring and connected with the bottom of moving conductive rod
Connect；
Described transmission interior is provided with the drive mechanism driving insulated tension pole to do vertical back and forth movement.
In this programme, the present invention solves the problems, such as transmission, and traditional high-pressure vacuum breaker uses connecting rod substantially
, although this mode is easy to operate and realizes, there is obvious problem in the mode of transmission, the stress of the last output of link transmission
Direction be not strict straight up that is to say, that the power that insulated tension pole is subject to can have a skew with respect to vertical direction,
So also can there is certain skew by the power that the first spring applies to moving conductive rod in insulated tension pole, can lead in the course of time absolutely
Edge pull bar can not more put in place and allow dynamic/static contact to realize preferably contact and to separate, especially when operating mechanism (cam, motor)
When deviation, then easily switching situation not in place in this when, makes chopper cannot realize due function.For
This, this programme to be realized insulated tension pole using a drive mechanism and to do vertical back and forth movement, rather than the motion of near vertical, this
Sample can be able to ensure that the direction of motion in the direction and insulated tension pole that insulated tension pole acts on the power on the first spring is consistent,
There is not deviation, from but the switching of dynamic/static contact operation more put in place, largely avoid operating mechanism (cam, electricity
Machine) even if the situation that switching yet in action occurs.
Further, as optimal technical scheme, described drive mechanism include the first transmission component, the second transmission component with
And the 3rd transmission component；
Described first transmission component include the first power transmission shaft and be arranged on driven chain drum under first on the first power transmission shaft,
Manual chain drum and motor-driven chain drum；
Described second transmission component include second driving shaft and be arranged on the second active chain drum on second driving shaft and
Second driven chain drum, described second active chain drum passes through driven chain drum under chain and first and realizes linkage；
Described 3rd transmission component include the 3rd power transmission shaft and be arranged on the 3rd active chain drum on the 3rd power transmission shaft and
Master gear, described 3rd active chain drum passes through chain and the second driven chain drum realizes linkage；
The bottom of described insulated tension pole is connected with a driving rack in vertical state, and driving rack is nibbled with master gear phase
Close.
This programme devises a kind of new kind of drive, substitutes the link transmission mode of transmission, by each transmission component
Between cooperation it is achieved that comparing the more stable motion of link transmission, each transmission component in the presence of chain drum and chain,
Achieve and be more accurately driven, evaded clearance issues, the matching problem that traditional link transmission is likely to occur, this programme
The service life of drive mechanism is longer, and transmission is more accurate, and switching more puts in place.Further, since insulated tension pole passes through driving rack
The motion of itself in the vertical direction is realized in mating reaction with master gear, and the direction of motion is consistent with force direction height,
So that moving conductive rod can preferably be driven moving contact to be contacted with static contact, separate.Further, since this programme adopts chain drum
Control transmission, therefore, it is possible to more be accurately controlled the moving displacement of moving conductive rod, and for comparing link transmission mode, deviation
Less.In addition, it is necessary to illustrate, manual chain drum realizes Non-follow control by the structure of outside turning handle or bull stick etc
Switching, and motor-driven chain drum can be linked with the rotary shaft of motor, thus realizing automatically controlling, this and traditional high pressure vacuum
The control mode of chopper is the same, by automatically controlling and Non-follow control.
Further, as optimal technical scheme, described static conductive rod is provided with through hole along central axial direction, and the one of through hole
End is sealed by static contact, and the other end of through hole extends to vacuum extinction outdoor, is provided with a heat abstractor in this through hole, described scattered
Thermal includes absorber, radiator, second spring and bracing wire, and absorber is located at lower section, absorber and the radiating of radiator
Connected by second spring between body, second spring is in compressive state all the time, radiator stretches out vacuum positioned at static conductive rod and goes out
One end of arc chamber, one end of bracing wire is fixed on absorber, and the other end of bracing wire is connected on drive mechanism.
In this programme, introduce heat abstractor, this is that existing high-pressure vacuum breaker does not possess, and dynamic/static contact is connecing
Tactile moment, inevitably result from contact resistance, and this partial ohmic will account for high-pressure vacuum breaker loop resistance
More than 50%, dynamic/static contact such as can produce substantial amounts of heat in contact, and can only pass through moving conductive rod, static conductive rod at present
Come to external cooling although moving conductive rod seems is conducive to radiating, but moving conductive rod connecting link is relatively more, and thermally conductive pathways
Longer, radiating effect is not also good.For this reason, this programme devises a kind of new heat abstractor, absorber is arranged on radiator
In static conductive rod, when dynamic/static contact contact, absorber is close to static contact in the presence of second spring, now, heat absorption
The heat that dynamic/static contact produces is siphoned away by body, reduces the heat on dynamic/static contact, and then absorber is by the heat transfer of itself
To radiator, quickly scattering and disappearing of heat is achieved by radiator, thus avoiding that high-pressure vacuum breaker temperature is too high and shadow
It is ensured that corrugated tube has longer service life, vacuum interrupter has preferable vacuum to the fatigue strength ringing corrugated tube simultaneously
Degree.
Further, as optimal technical scheme, described absorber is frustum cone structure, and static contact is towards the one side of absorber
It is provided with the recess matching with the frustum cone structure of absorber.On static contact setting recess after, enable absorber preferably with
The heat that static contact contacts and siphons away on static contact as much as possible, also reduces the heat on moving contact, further thus avoiding
The temperature of vacuum interrupter is too high and affects the service life of corrugated tube and the vacuum of vacuum interrupter.
Further, as optimal technical scheme, described radiator is provided with a blind hole along central axial direction, and blind hole
Aperture linearly reduces along aperture to bottom hole direction, and the bottom hole of blind hole is provided with a perforation passed through for bracing wire.Due to heat absorption
Body is the structure of round platform, after the structure design of blind hole to be adapted with the structure of absorber, can make absorber and radiating
Body contact is more abundant, so that radiating efficiency is further enhanced.
Further, as optimal technical scheme, described radiator is provided with the second corrugated tube, described second corrugated tube
One of port is docked with aperture seal, and another port is fixed with bracing wire sealing.After increased the second corrugated tube, can
Guarantee that vacuum interrupter has reliable vacuum, though between static contact and static conductive rod be not fully seal it is also possible to
Guarantee that whole vacuum interrupter and outside air are completely separated it is ensured that obtaining the arc extinguishing condition of a high vacuum.
Further, as optimal technical scheme, described absorber is made of copper, and radiator is adopted and is formed from aluminium.Copper has
There is stronger heat absorption capacity, and aluminum has stronger heat-sinking capability, copper absorber can be relatively rapid from static contact
Siphon away substantial amounts of heat, then lead to peraluminous radiator carry out heat scatter and disappear, thus avoid vacuum interrupter temperature too high.
Further, as optimal technical scheme, driven chain drum on first, the 4th transmission component and the 5th biography are also included
Dynamic assembly, described 4th transmission component includes the 4th power transmission shaft and is arranged on the 4th active chain drum on the 4th power transmission shaft and
Four driven chain drums, described 4th active chain drum passes through driven chain drum on chain and first and realizes linkage；Described 5th transmission component
Including the 5th power transmission shaft and be arranged on the 5th active chain drum on the 5th power transmission shaft, described 5th active chain drum pass through chain with
4th driven chain drum realizes linkage, and described guy winding is on the 5th power transmission shaft.
In this programme, by increasing driven chain drum, the 4th transmission component and the 5th transmission component on first, can be more preferable
Realize the motor control of absorber and the control of clamping device, only need to by operating to the first transmission component simultaneously
Multiple operations can be realized, such as, during combined floodgate, moving contact moves upwards, clamping device closes, absorber moves downward simultaneously
It is affixed these three motions with static contact all to carry out simultaneously；And when opening a sluice gate, moving contact moves downward, clamping device is opened, inhale
Hot body moves upwards, and contact these three motions with radiator be all to carry out that is to say, that it is only necessary to single stepping, that is, simultaneously
Three effects can be obtained, while simplifying operation, be obtained in that preferable effect.
The method have the advantages that
(1) present invention passes through coordinating it is achieved that comparing the more stable motion of link transmission between each transmission component,
, it is achieved that being more accurately driven in the presence of chain drum with chain, having evaded traditional link transmission can for each transmission component
The clearance issues of energy appearance, matching problem, the service life of the drive mechanism of this programme is longer, and transmission is more accurate, and switching is more
Put in place；Further, since insulated tension pole realizes itself in the vertical direction by the mating reaction of driving rack and master gear
Motion, the direction of motion is consistent with force direction height, so that moving conductive rod can preferably drive moving contact and static contact
Contact, separation.
(2) present invention passes through to increase heat abstractor, absorber and radiator is arranged in static conductive rod, dynamic/static contact connects
When tactile, absorber is close to static contact in the presence of second spring, now, the heat that dynamic/static contact is produced by absorber
Siphon away, reduce the heat on dynamic/static contact, then absorber, by the heat transfer of itself to radiator, is realized by radiator
Quickly scattering and disappearing of heat, thus avoid high-pressure vacuum breaker temperature too high and affect corrugated tube fatigue strength it is ensured that
Corrugated tube has longer service life, and vacuum interrupter has preferable vacuum simultaneously.
Brief description
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural representation figure of the drive mechanism of the present invention；
Fig. 3 is the structural representation of the heat abstractor of the present invention；
Fig. 4 is the profile of the static conductive rod of the present invention.
In figure reference is corresponding entitled: 1, insulating cylinder, 2, Transmission Room, 3, vacuum interrupter, 4, upper bracket, 5, under
Support, 6, static conductive rod, 7, static contact, 8, moving contact, 9, moving conductive rod, the 10, first corrugated tube, 11, upper wire outlet seat, 12, under
Wire outlet seat, 13, insulated tension pole, the 14, first spring, 15, driving rack, the 16, first power transmission shaft, driven chain drum under 17, first,
18th, driven chain drum on first, 19, manual chain drum, 20, motor-driven chain drum, 21, motor, 22, turning handle, the 23, second transmission
Axle, the 24, second active chain drum, the 25, second driven chain drum, the 26, the 3rd power transmission shaft, the 27, the 3rd active chain drum, 28, master gear,
29th, the 4th power transmission shaft, the 30, the 4th active chain drum, the 31, the 4th driven chain drum, the 32, the 5th power transmission shaft, the 33, the 5th active chain drum,
34th, bracing wire, 35, absorber, 36, radiator, 37, second spring, 38, blind hole, 39, perforation, the 40, second corrugated tube.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not
It is only limitted to this.
Embodiment:
As shown in figures 1-4, a kind of high stability high-pressure vacuum breaker described in the present embodiment, including insulating cylinder 1 and biography
Dynamic room 2, is provided with vacuum interrupter 3 in insulating cylinder 1, the upper and lower end of vacuum interrupter 3 passes through upper bracket 4, lower carriage 5 admittedly respectively
In insulating cylinder 1, upper bracket 4 is provided with wire outlet seat 11, and lower carriage 5 is provided with lower wire outlet seat 12, upper bracket 4, lower carriage 5
For fixing vacuum interrupter 3, upper wire outlet seat 11, lower wire outlet seat 12 are used for drawing wire, realize wire and sound conducting rod it
Between electrical connection.
It is provided with static conductive rod 6, static contact 7, moving contact 8, moving conductive rod 9, first wave in the vacuum interrupter 5 of the present embodiment
Stricture of vagina pipe 10, the upper end of static conductive rod 6 passes vacuum interrupter 3 and is fixed on upper bracket 4, the lower end of static conductive rod 6 and stationary contact
7 fixing and realize electrically connecting, and the lower end of moving conductive rod 9 passes vacuum interrupter 3 and is fixed on lower carriage 5, moving conductive rod 9
Upper end and moving contact 8 fixing and realize electrically connecting, moving conductive rod 9 is worn and is connected to the first corrugated tube 10, the first corrugated tube 10
One of port sealing is fixed on moving conductive rod 9, and another port of the first corrugated tube 10 and vacuum interrupter 3 are realized close
Sealing is fixed；
The present embodiment also includes insulated tension pole 13, and first spring 14 and moving conductive rod are passed through in the top of insulated tension pole 13
9 bottom connects, and the first spring 14 can play certain cushioning effect to static contact 7 contact with moving contact 8.
It is provided with the drive mechanism driving insulated tension pole 13 to do vertical back and forth movement in the Transmission Room 2 of the present embodiment, specifically,
The drive mechanism of the present embodiment can be realized using following structure: drive mechanism includes the first transmission component, the second transmission component
And the 3rd transmission component；First transmission component includes the first power transmission shaft 16 and is arranged under first on the first power transmission shaft 16
Driven chain drum 17, manual chain drum 19 and motor-driven chain drum 20；Second transmission component includes second driving shaft 23 and is arranged on
The second active chain drum 24 on two power transmission shafts 23 and the second driven chain drum 25, described second active chain drum 24 passes through chain and first
Under driven chain drum 17 realize linkage；3rd transmission component includes the 3rd power transmission shaft 26 and is arranged on the 3rd power transmission shaft 26
Three active chain drums 27 and master gear 28, described 3rd active chain drum 27 passes through chain and the second driven chain drum 25 realizes linkage；Absolutely
The bottom of edge pull bar 13 is connected with a driving rack 15 in vertical state, and driving rack 15 is meshed with master gear 28.
Affect the fatigue strength of corrugated tube in order to avoid high-pressure vacuum breaker temperature is too high it is ensured that corrugated tube has relatively
Long service life, simultaneously vacuum interrupter there is preferable vacuum, in the present embodiment, in static conductive rod 6 along central axis
Direction arranges through hole, and one end of through hole is sealed by static contact 7, and the other end of through hole extends to outside vacuum interrupter 3, in this through hole
One heat abstractor of setting, heat abstractor includes absorber 35, radiator 36, second spring 37 and bracing wire 34, absorber 35
It is connected by second spring 37 positioned between the lower section of radiator 36, absorber 35 and radiator 36, second spring 37 is located all the time
In compressive state, radiator 36 stretches out one end of vacuum interrupter 3 positioned at static conductive rod 6, and one end of bracing wire 34 is fixed on heat absorption
On body 35, the other end of bracing wire 34 is connected on drive mechanism.
In order that absorber preferably can be contacted with static contact 7 and siphon away the heat on static contact as much as possible,
Reduce the heat on moving contact 8 further, thus avoid vacuum interrupter 3 temperature is too high and the service life that affects corrugated tube
And the vacuum of vacuum interrupter 3, absorber 35 is designed as frustum cone structure by the present embodiment, and static contact 7 is towards absorber 35
One side be provided with the recess matching with the frustum cone structure of absorber 35.
In order that absorber is contacted with radiator more fully, radiating efficiency is made to be further enhanced, the present embodiment is dissipating
Hot body 36 arranges a blind hole 38 along central axial direction, and the aperture of blind hole 38 linearly reduces along aperture to bottom hole direction,
The bottom hole of blind hole 38 is provided with a perforation 39 passed through for bracing wire 34.
In order to guarantee that vacuum interrupter has reliable vacuum, even if between static contact and static conductive rod not being
Fully seal it is also possible to guarantee that whole vacuum interrupter and outside air are completely separated it is ensured that obtaining a high vacuum
Arc extinguishing condition, the present embodiment can arrange the second corrugated tube 40, one of port of the second corrugated tube 40 on radiator 36
Dock with perforation 39 sealing, another port is fixed with bracing wire sealing.
Preferably, the absorber 35 of the present embodiment is made of copper, radiator 36 is adopted and is formed from aluminium.
Operate for convenience, and simplify operation, the present embodiment also include driven chain drum 18 on first, the 4th transmission component with
And the 5th transmission component, the 4th transmission component include the 4th power transmission shaft 29 and be arranged on the 4th power transmission shaft 29 the 4th actively
Chain drum 30 and the 4th driven chain drum 31, described 4th active chain drum 30 passes through driven chain drum 18 on chain and first and realizes linkage；
Described 5th transmission component includes the 5th power transmission shaft 32 and is arranged on the 5th active chain drum 33 on the 5th power transmission shaft 32, described
5th active chain drum 33 passes through chain and the 4th driven chain drum 31 realizes linkage, and bracing wire 34 is wrapped on the 5th power transmission shaft 32.
Operation principle in conjunction with Fig. 1～4 pair the present embodiment illustrates: during combined floodgate, makes motor 21 or rotates handss
Handle 22 rotates counterclockwise, and master gear 28, the 5th power transmission shaft 32 all rotate counterclockwise, and master gear 28 drives driving rack 15 to transport upwards
Move, and then moving conductive rod 9 is moved upwards and so that moving contact 8 is contacted with static contact 6, realize closing a floodgate, another side, the 5th power transmission shaft 32
Rotate counterclockwise drive bracing wire 34 unwrapping wire, absorber 35 transfers to the position contacting with static contact 7；During separating brake, make stepping
Motor 21 or turning handle 22 rotate clockwise, and master gear 28, the 5th power transmission shaft 32 all rotate clockwise, and master gear 28 drives
Driving rack 15 moves downward, and then moving conductive rod 9 is moved downward and so that moving contact 8 is separated with static contact 6, realizes separating brake, separately
On one side, rotating clockwise of the 5th power transmission shaft 32 drives bracing wire 34 take-up, and absorber 35 is separated with static contact 7 and moves to and dissipate
The position of hot body 36 contact, realizes quick heat radiating.
The present invention is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to
Citing and descriptive purpose, and be not intended to limit the invention in described scope of embodiments.Additionally, people in the art
Member, it is understood that the invention is not limited in above-described embodiment, can also make more kinds of according to the teachings of the present invention
Variants and modifications, within these variants and modifications all fall within scope of the present invention.
Claims (8)
1. a kind of high stability high-pressure vacuum breaker it is characterised in that: include insulating cylinder (1) and Transmission Room (2), described insulation
It is provided with vacuum interrupter (3), the upper and lower end of vacuum interrupter (3) passes through upper bracket (4), lower carriage (5) admittedly respectively in cylinder (1)
In insulating cylinder (1), described upper bracket (4) is provided with wire outlet seat (11), and described lower carriage (5) is provided with lower wire outlet seat
(12)；
It is provided with static conductive rod (6), static contact (7), moving contact (8), moving conductive rod (9), first wave in described vacuum interrupter (5)
Stricture of vagina pipe (10), the upper end of described static conductive rod (6) passes vacuum interrupter (3) and is fixed on upper bracket (4), static conductive rod
(6) lower end and static contact (7) are fixing and realize electrically connecting, the lower end of described moving conductive rod (9) pass vacuum interrupter (3) and
It is fixed on lower carriage (5), the upper end of moving conductive rod (9) is fixing with moving contact (8) and realizes electrically connecting, described moving conductive rod
(9) wear on and be connected to the first corrugated tube (10), one of port sealing of described first corrugated tube (10) is fixed on moving conductive rod
(9), on, another port of the first corrugated tube (10) and vacuum interrupter (3) are realized sealing and are fixed；
Also include insulated tension pole (13), first spring (14) and moving conductive rod are passed through in the top of described insulated tension pole (13)
(9) bottom connects；
It is provided with the drive mechanism driving insulated tension pole (13) to do vertical back and forth movement in described Transmission Room (2).
2. a kind of high stability high-pressure vacuum breaker according to claim 1 it is characterised in that: described drive mechanism bag
Include the first transmission component, the second transmission component and the 3rd transmission component；
Described first transmission component includes the first power transmission shaft (16) and is arranged on driven under first on the first power transmission shaft (16)
Chain drum (17), manual chain drum (19) and motor-driven chain drum (20)；
Described second transmission component includes second driving shaft (23) and is arranged on the second drive chain on second driving shaft (23)
Disk (24) and the second driven chain drum (25), described second active chain drum (24) passes through driven chain drum (17) under chain and first and realizes
Linkage；
Described 3rd transmission component includes the 3rd power transmission shaft (26) and is arranged on the 3rd drive chain on the 3rd power transmission shaft (26)
Disk (27) and master gear (28), described 3rd active chain drum (27) passes through chain and the second driven chain drum (25) realizes linkage；
The bottom of described insulated tension pole (13) is connected with a driving rack (15) in vertical state, driving rack (15) and main tooth
Wheel (28) is meshed.
3. a kind of high stability high-pressure vacuum breaker according to claim 2 it is characterised in that: described static conductive rod
(6) it is provided with through hole along central axial direction, one end of through hole is sealed by static contact (7), and the other end of through hole extends to vacuum and goes out
Arc chamber (3) outward, is provided with a heat abstractor in this through hole, described heat abstractor include absorber (35), radiator (36), second
Spring (37) and bracing wire (34), absorber (35) is located at the lower section of radiator (36), absorber (35) and radiator (36) it
Between connected by second spring (37), second spring (37) is in compressive state all the time, and radiator (36) is located at static conductive rod (6)
Stretch out one end of vacuum interrupter (3), one end of bracing wire (34) is fixed on absorber (35), the other end of bracing wire (34) connects
To on drive mechanism.
4. a kind of high stability high-pressure vacuum breaker according to claim 3 it is characterised in that: described absorber (35)
For frustum cone structure, static contact (7) is provided with, towards the one side of absorber (35), match with the frustum cone structure of absorber (35) recessed
Mouthful.
5. a kind of high stability high-pressure vacuum breaker according to claim 3 it is characterised in that: described radiator (36)
It is provided with a blind hole (38) along central axial direction, and the aperture of blind hole (38) linearly reduces to bottom hole direction along aperture, blind
The bottom hole in hole (38) is provided with a perforation (39) passed through for bracing wire (34).
6. a kind of high stability high-pressure vacuum breaker according to claim 5 it is characterised in that: described radiator (36)
It is provided with the second corrugated tube (40), one of port of described second corrugated tube (40) is docked with perforation (39) sealing, another
Individual port is fixed with bracing wire sealing.
7. a kind of high stability high-pressure vacuum breaker according to any one of claim 3～6 it is characterised in that: described
Absorber (35) is made of copper, and radiator (36) is adopted and is formed from aluminium.
8. a kind of high stability high-pressure vacuum breaker according to claim 7 it is characterised in that: also include on first from
Dynamic chain drum (18), the 4th transmission component and the 5th transmission component, described 4th transmission component include the 4th power transmission shaft (29) with
And it is arranged on the 4th active chain drum (30) on the 4th power transmission shaft (29) and the 4th driven chain drum (31), described 4th active chain drum
(30) pass through driven chain drum (18) on chain and first and realize linkage；Described 5th transmission component include the 5th power transmission shaft (32) with
And it is arranged on the 5th active chain drum (33) on the 5th power transmission shaft (32), described 5th active chain drum (33) passes through chain and the 4th
Driven chain drum (31) realizes linkage, and described bracing wire (34) is wrapped on the 5th power transmission shaft (32).
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| CN201611005007.8A CN106356241B (en) | 2016-11-15 | 2016-11-15 | A kind of high stability high-pressure vacuum breaker |
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| CN106356241B CN106356241B (en) | 2018-06-26 |
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| CN107910216A (en) * | 2017-11-13 | 2018-04-13 | 东莞市松研智达工业设计有限公司 | A kind of arc-extinguishing mechanism of power circuit breaker |
| CN109935480A (en) * | 2019-04-29 | 2019-06-25 | 惠安耐亚节能科技有限公司 | A kind of contact arc extinguishing device of breaker |
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| CN107785197A (en) * | 2017-11-01 | 2018-03-09 | 苏州专创光电科技有限公司 | A kind of arc-extinguishing mechanism of the power circuit breaker based on arc-shaped guide rail |
| CN107910216A (en) * | 2017-11-13 | 2018-04-13 | 东莞市松研智达工业设计有限公司 | A kind of arc-extinguishing mechanism of power circuit breaker |
| CN109935480A (en) * | 2019-04-29 | 2019-06-25 | 惠安耐亚节能科技有限公司 | A kind of contact arc extinguishing device of breaker |
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| Publication number | Publication date |
|---|---|
| CN106356241B (en) | 2018-06-26 |
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