CN104347304B - A kind of ultrahigh speed mechanical switch - Google Patents
A kind of ultrahigh speed mechanical switch Download PDFInfo
- Publication number
- CN104347304B CN104347304B CN201410547980.7A CN201410547980A CN104347304B CN 104347304 B CN104347304 B CN 104347304B CN 201410547980 A CN201410547980 A CN 201410547980A CN 104347304 B CN104347304 B CN 104347304B
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- speed mechanical
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- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000009413 insulation Methods 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 230000005307 ferromagnetism Effects 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 34
- 229910052751 metal Inorganic materials 0.000 description 34
- 239000007789 gas Substances 0.000 description 19
- 230000003139 buffering effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention provides a kind of ultrahigh speed mechanical switch, including insulation shell, being provided with inside insulation shell is used for the electromagnetic operating mechanism that driving switch pull bar divide-shut brake is moved, electromagnetic operating mechanism includes the dynamic iron core being connected with switch lever and the seal cavity for completing divide-shut brake is moved back and forth for dynamic iron core, dynamic iron core is respectively at closing position and open position when moving to seal cavity two ends, dynamic iron core be by seal cavity isolation be two-part moving coil, it is communicated with the circumferential cavity wall of seal cavity in division gate position or at division gate position inside and outside seal cavity, through hole for passing in and out buffer medium.The ultrahigh speed mechanical switch can effectively be buffered when switch lever divide-shut brake is moved to it, it is to avoid mechanical shock.
Description
Technical field
The present invention relates to a kind of dc circuit breaker ultrahigh speed mechanical switch.
Background technology
Multi-terminal HVDC transmission based on Technology of HVDC based Voltage Source Converter is got in countries and regions such as Europe, North America, China
Carry out more applications, although existing several multi-terminal direct current transmission systems have put into operation in the world at present, due to lacking direct current
Breaker so that reliability, flexibility, the continuity of multi-terminal high-voltage direct current transportation are very restricted, to its popularization and application
Serious hindrance is caused, strong influence also is brought to the structure of following direct current network.The shortage of high voltage DC breaker is
Through building the bottleneck problem of following direct current network as the influence world, its development work is extremely urgent.
When current flexible direct current and multi-terminal direct current transmission system break down, very big short circuit current flow, and event can be produced
Hinder electric current to rise very soon, it is necessary to which dc circuit breaker completes to cut-off within the extremely short time.It is 320kV DC sides with regard to voltage class
The electric current rate of climb is 3.5kA/ms, it is assumed that current value is that short circuit current flow after 2kA, 2ms on circuit can on normal working line
Must the quick acting within 2ms time, cut-out electricity with the high voltage DC breaker for reaching the energy beginning 9kA electric current of 9kA, i.e., one
Stream.However, existing breaker mechanical switch operation mechanism is generally spring actuating structure, hydraulic actuating mechanism, its switch off time
For a few tens of milliseconds, it can not realize and cut-off breaker within the so short time, it is impossible to meet the division of ultrahigh speed mechanical switch
Lock time requirement.
The Chinese invention patent application that notification number is CN102214522A discloses a kind of with air brake separating buffer device
High and low pressure switch permanent-magnet manipulating mechanism, dynamic iron core and the air chamber of the permanent-magnet manipulating mechanism constitute air brake separating buffer device,
Dynamic iron core is along the air in compressed air cell during its axis high-speed motion in air chamber, and compressed air has anti-work to dynamic iron core
Firmly, so as to form buffering, wherein there is gap between the dynamic iron core of the permanent-magnet manipulating mechanism and the inner hole wall of air chamber, pressed
The air of contracting can overflow from the gap, and the operating mechanism is with the mechanism of footpath, and the lower end of dynamic iron core is fixed with piston panel, living
Fill in panel and be provided with bleeder port, in dynamic iron core motion compresses air, gas can be discharged from bleeder port.This permanent magnetic operating
Mechanism is when dynamic iron core separating brake is moved, due to having gap between dynamic iron core and the inwall of air chamber, meanwhile, dynamic iron core lower end
Piston panel is provided with bleeder port, and such stomata is limited to the buffering of dynamic iron core, it is impossible to meet the buffering of ultrahigh speed mechanical switch
It is required that, hold very much because buffer invalidation produce mechanical shock and caused by operating mechanism damage.
The content of the invention
, being capable of effective buffer switch pull bar it is an object of the invention to provide one kind when switch lever divide-shut brake is moved
The ultrahigh speed mechanical switch of mechanical shock.
The ultrahigh speed mechanical switch of the present invention is adopted the following technical scheme that：
Being provided with inside a kind of ultrahigh speed mechanical switch, including insulation shell, the insulation shell is used for driving switch pull bar
The electromagnetic operating mechanism of divide-shut brake motion, the electromagnetic operating mechanism includes dynamic iron core and the confession being connected with switch lever
Dynamic iron core moves back and forth the seal cavity for completing divide-shut brake, and the dynamic iron core is respectively at conjunction when moving to seal cavity two ends
Gate position and open position, the dynamic iron core be by seal cavity isolation be two-part moving coil, the week of the seal cavity
On to cavity wall in division gate position or be communicated with division gate position it is inside and outside seal cavity, for passing in and out buffer medium
Through hole.
The collets that groove is respectively equipped with the seal cavity is docking together by two, docking end face are constituted, and are transported
The groove cell wall sealing of Moving plate and collets is slidably matched, and two coils for powered motion disk of electromagnetic operating mechanism are distinguished
The bottom portion of groove of two collets is fixedly arranged on, the adjacent coil of through hole two end faces close to each other are set.
Two collets by be enclosed on collets periphery fixes sleeve fix dock, two collets be relatively distant from two
End is provided with the identical outward flange coordinated of endoporus with fixes sleeve, and the two ends of the fixes sleeve are respectively provided with block clamping
The stopping surface of two collets.
The barrel of the fixes sleeve is provided with the hole of insertion barrel.
One end of the fixes sleeve is provided with spring retaining mechanisms, and the spring retaining mechanisms are symmetrically set in solid including two
Determine the limit spring of sleeve axis both sides, in division gate position, the end of switch lever is located at the axis of limit spring respectively
Both sides, the end of the switch lever is respectively articulated with the connection for being pressed against limit spring close to one end of fixes sleeve axis
Block, the other end of the limit spring is provided with the adjusting means for being used for adjusting limit spring pre compressed magnitude.
Two limit springs are respectively arranged in two spacing collars, and the contiguous block slidable fit is in spacing collar, institute
Stating adjusting means includes regulating bolt of the spinning in the bottom of spacing collar, and the regulating bolt puts in the one of spacing collar bottom
End connection top pressure is in the regulation pressing plate of limit spring end, and the precommpression to limit spring can be adjusted by screwing regulating bolt.
The both sides difference relative spacing of the spring holding structure is provided with for block limit switch pull bar movement travel
Stop block.
The ultrahigh speed mechanical switch also includes switch fracture, and the switch contact of the switch fracture includes contact body,
The contact body edge is moved is interval with ferromagnetism steel plate successively, at the interval location between every two neighboring ferromagnetism steel plate
Insulation, the ferromagnetism steel plate has bridging length, and the bridging length meets two conditions：First, in closing position, this is touched
Ferromagnetism steel plate on head body can bridge the two neighboring ferromagnetism steel plate in the contact body being adapted to the contact body；
Second, in open position, at least one end of the ferromagnetism steel plate in the contact body is located in the contact body being adapted to it
Two neighboring ferromagnetism steel plate between interval location at.
Ferromagnetism steel plate in the contact body by insulated connecting piece successively insulation gap, the ferromagnetism steel plate and
Insulated connecting piece is tubulose.
Each insulation connection in each ferromagnetism steel plate structure all same in the contact body, the contact body
Part structure all same, and length of the length more than insulated connecting piece of ferromagnetism steel plate.
Seal cavity isolation is two parts, moving coil and annular seal space by the moving coil of the ultrahigh speed mechanical switch of the present invention
The face that is slidably matched of body is in the absence of gap, and moving coil compresses its direction of motion side when driving switch lever to do divide-shut brake motion
Gas in seal cavity, is communicated with close due to the division gate position of seal cavity or on the perisporium at division gate position
The through hole sealed inside and outside cavity, gas compressed can be discharged by through hole, thus substantially reduce gas compressed pair
The reaction force of moving coil, enables the divide-shut brake of switch lever high speed, and when moving coil is that will be moved to divide-shut brake position,
The outer weekly assembly of moving coil gradually blocks the through hole on seal cavity perisporium, the amount that such gas compressed is discharged from through hole by
Decrescence few, the pressure of gas unprecedentedly increases, and the reaction force of moving coil increased dramatically, and plays effective buffering to moving coil,
Impact of the moving coil to seal cavity two ends is avoided, simultaneously as through hole is opened in the division gate position or close of seal cavity
At division gate position, gas is only that moving coil is blocked since the periphery of moving coil to complete closure to moving coil buffering course
This process of moving coil, can so make switch lever high speed under the drive of moving coil leave closing position, and in movement
Speed is preferably minimized to fast cache during open position, cushion stroke is shorter, and braking effect is preferable.
Further, housing is formed by two collets notch relative combinations, efficiently avoid the electric current in coil
Electromagnetic effect is produced to external metal parts, the conversion efficiency of electric energy and kinetic energy is improved, two coils are installed in two respectively
The bottom land of the groove of collets, moving coil is located between coil and is slidedly assemblied in groove, and coil and moving coil are respectively positioned on absolutely
In the cushion chamber body of edge, it is to avoid because colliding the damage of other elements.
Further, one end of shackle rod is connected with spring retaining mechanisms, effectively maintains switch lever in division
Lock motion is stable after completing to be in division gate position, and spring retaining mechanisms are simple in construction, instead of conventional magnetic force and protect
The design of mechanism is held, simple in construction while, it may have higher holding reliability.Meanwhile, the limit of divide-shut brake maintaining body
Position sleeve bottom is provided with regulating bolt, the pre compressed magnitude of limit spring can be adjusted by screwing regulating bolt, so as to adjust limit
Holding size of the position spring to switch lever.
Further, the effective block switch lever fortune of stop block that the both sides relative spacing of spring retaining mechanisms is set
It is dynamic, and by switch lever block at division gate position, be further prevented effectively from moving coil high-speed motion and cause to annular seal space
The mechanical shock of internal coil.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the embodiment of ultrahigh speed mechanical switch of the invention；
Fig. 2 is the enlarged drawing of repulsion operating mechanism I in Fig. 1；
Fig. 3 is the structural representation of first switch pull bar in Fig. 1；
Fig. 4 is the structural representation of second switch pull bar in Fig. 1；
The structural representation of fracture II is switched when Fig. 5 is open position；
The structural representation of fracture II is switched when Fig. 6 is closing position；
The schematic diagram of incision position is switched when Fig. 7 is the open position of embodiment two；
The schematic diagram of incision position is switched when Fig. 8 is the closing position of embodiment three；
The schematic diagram of incision position is switched when Fig. 9 is the open position of embodiment three.
Embodiment
A kind of embodiment of ultrahigh speed mechanical switch of the present invention：As shown in figures 1 to 6, including sealed insulating cylinder body 1, absolutely
High pressure sulfur hexafluoride gas is filled with the inner space C of edge cylinder 1, the two ends difference relative spacing sealing of insulating cylinder body 1 connects
Structure identical repulsion operating mechanism I and III is connected to, repulsion operating mechanism I and III is connected with along the axle of insulating cylinder body 1 respectively
Line direction extension switch lever 191 and 192 and switch lever 191 and 192 two ends close to each other be respectively equipped with cut-off it is tactile
The first conducting end A and the second conducting end B, the first conducting end A and are sealedly connected with head, the periphery wall of insulating cylinder body 1 respectively
Two conducting end B were located in the same plane of insulating cylinder body axis and were respectively arranged on the both sides of insulating cylinder body 1, the first conducting end A
It is conductively connected respectively with the contact that cut-offs in switch lever 191 and 192 with the second conducting end B, repulsion operating mechanism I and III is distinguished
Divide-shut brake is realized in the relative motion of driving switch pull bar 191 and 192.
The concrete structure of the repulsion operating mechanism I of the embodiment of the present invention along insulating cylinder body axis as shown in Fig. 2 including extending
Shackle rod 19, right-hand member and the switch lever 191 of shackle rod 19 be fixedly and coaxially connected, and motion is fixed with shackle rod 19
Disk 90, the place plane of moving coil 90 is vertical with shackle rod 19, and the left and right sides of moving coil 90 is relative provided with two insulation respectively
Block 61,62, collets 61,62 structures are identical, and the relative and equal orientation movements disk 90 that is open that is open is respectively equipped with collets 61,62
Groove, the periphery of groove and moving coil 90 on collets 61,62 coincide and the bottom land of groove is installed with first coil respectively
91 and second coil 92, the external diameter of first, second coil 91,92 is identical with the external diameter of moving coil 90 and groove footpath kiss with groove
Close, first, second coil 91,92 is parallel with moving coil 90 and is located at the both sides of moving coil 90, the groove of collets 61,62
The through hole 610 radially extended is circumferentially evenly equipped with the cell wall of bottom land, all through holes are located normal to the same circle of axis
In side face, wherein, the quantity of through hole can be arranged according to actual needs.The left and right ends of shackle rod 19 are each passed through first,
Second coil 91,92 and collets 61,62, the coil 91,92 of shackle rod 19 and first, second and collets 61,62 are slided
Dynamic to coordinate, being provided with the hole being slidably matched with shackle rod 19 of collets 61,62 is used for sealed sealing ring 600, collets
61st, 62 openings are relative and are fixedly mounted in metal fixes sleeve 21, the outer peripheral face at the two ends being relatively distant from of collets 61,62
On be respectively equipped with outward flange, the two outward flange diameters it is equal and equal to fixes sleeve 21 diameter of bore, in collets 61,62
Two outward flanges between, have between the outer peripheral face of collets 61,62 and the internal face of fixes sleeve 21 certain for buffering
The flow channel of flow of media, the groove of two collets constitutes an insulation cavity, and the right-hand member of fixes sleeve 21 has block exhausted
There is the outward flange for connecting, the left side openend of fixes sleeve 21 is connected with metal at the cylinder bottom of edge block 61, left side opening
Fixed seat 4, the tubular that fixed seat 4 extends for left and right, and its two ends is respectively equipped with adpting flange 41,42, adpting flange 41 passes through
Screw be connected with the outward flange of fixes sleeve 21 and adpting flange 41 flange face top pressure in the left side of collets 62, connection method
Together with orchid 41 and the right side of fixes sleeve 21 cylinder bottom cooperate and are fixed collets 61,62, in the present embodiment, fixation
The stopping surface of sleeve right-hand member is provided by right side cylinder bottom, in other embodiments, can also be bolted right in fixes sleeve
The stop catch plate at end is realized.The side wall of first, second coil 91,92 and collets 61,62 encloses to form cushion chamber 7 jointly, passes
The left and right ends of dynamic pull bar 19 stretch out respectively the flange face of fixed seat 4 and the cylinder bottom of fixes sleeve 21 and with flange face and cylinder bottom
Centre bore sealing is slidably matched, the cushion chamber 7 that fixed moving coil 90 can be synthesized in collets 61,62 Duis on shackle rod 19
Interior left and right reciprocatingly slides and realizes divide-shut brake, strip hole 211 is uniformly provided with the circumference barrel of fixes sleeve 21 and in grid-like, this
Sample greatly reduces the weight of fixes sleeve, is that whole device is lighter.It is further to note that insulation shell when in use
High pressure sulfur hexafluoride is full of in the inner space of body, the sulfur hexafluoride gas of high pressure serves as buffer medium, and gases at high pressure can lead to
Cross strip hole 211 full of buffering cavity, while strip hole 211 can also make the gas in cushion chamber 7 when moving coil is moved by
It can be discharged in the outside sealing space of fixes sleeve after through hole discharge, certainly, in other embodiments, the barrel of fixes sleeve
On can open up other shapes or the hole of other arrangement modes, or fixes sleeve barrel not perforate, now, moving coil motion
The gas of the through hole discharge of direction side can be entered by flow channel from the dorsad damping hole of moving coil direction of motion side
Enter cushion chamber.Fixes sleeve 21 right side cylinder bottom on be uniformly provided with around shackle rod 19 on elongated hole 212, and cylinder bottom be additionally provided with for
The wire hole of the outlet of wire 101 of first, second coil 91,92 connection, by setting elongated hole 212 to reduce the weight of whole device
Amount.
The end that shackle rod 19 stretches out the adpting flange 41 of fixed seat 4 is provided with jacking block 18, and jacking block 18 is drawn perpendicular to transmission
Bar 19 and symmetrically extend with shackle rod about 19, the side wall of fixed seat 4 is provided with divide-shut brake holding structure 5, directly by divide-shut brake
Maintaining body is fixed in fixed seat make it that structure is simpler, and divide-shut brake maintaining body 5 includes symmetrical above and below located at fixed seat 4
Two spacing collars 50 on the wall of side, the cylinder heart and the jacking block 18 of two spacing collars 50 are generally aligned in the same plane, two spacing collars
50 openend is concordant with the internal face of tubular fixed seat 4, and limit spring 51 is respectively installed with two spacing collars 50, spacing
The periphery of spring 51 and the endoporus of spacing collar 50 coincide coordinates, it is to avoid limit spring is in sleeve diameter to skew, stop collar
Also slidable fit has sliding block 52 in cylinder 50, and limit spring is located between sliding block 52 and the cylinder bottom of spacing collar 50, two sliding blocks 52
End face top pressure in one end of limit spring 51, the other end is hinged by the upper and lower ends of contiguous block 17 and jacking block 18 respectively,
Above and below when the left and right horizontal of shackle rod 19 is moved two sliding blocks 52 slide up and down respectively and above and below extruding and loosening two it is spacing
Limit spring 51 in sleeve 50, the cylinder bottom of spacing collar 50 is also equipped with regulating bolt 53, regulating bolt 53 and regulating sleeve 50
The screwed hole screw thread at cylinder bottom coordinates, and one end that regulating bolt 53 stretches into a bottom is connected with regulation pressing plate 54, adjusts the top pressure of pressing plate 54
In the end of limit spring 51, the length that adjustment regulating bolt 53 stretches into a bottom can realize the tune to the length of limit spring 51
Section.
The side stretched out on the flange face of the adpting flange 41 of fixed seat 4 in shackle rod 19 is provided with the first stop block 122,
First stop block 122 has two and is symmetrically set in the both sides up and down of shackle rod 19 and is located at the right side of jacking block 18, up and down two
First stop block 122 corresponds respectively to the upper and lower ends of jacking block 18, and when shackle rod 19 is moved right, the first stop block 122 is used
The highest distance position moved right in limitation block jacking block 18, that is, close a floodgate stroke；The endoporus center of fixed seat 4 is additionally provided with second gear
Stops 121, the second stop block 121 is located at the left side of jacking block 18, and when shackle rod 19 is moved to the left, the second stop block 121 is used for
The maximum distance that the spacing jacking block 18 of block is moved to the left, i.e. separating brake stroke.The adpting flange 42 of fixed seat 4 is connected with metal cover board
3, injection in binding post 110, binding post 110 has been connected by screw on cover plate 3 and has been enclosed with what is be connected with the pulse power 10
Wire 100, the pulse power 10 fixes the left side for being located at binding post 110, and the pulse power 10 is located to one end of metal fixed seat 4
Be conducive to reducing circuit induction reactance, improve energy conversion efficiency, while making whole mechanism structure more compact, certainly, in other implementations
In example, it is contemplated that other practical factors can suitably adjust the installation site of the pulse power.Wire 100 directly with two first,
Second coil 91,92 is connected, and can so cause conductive track most short, it is to avoid because of the resistance and inductance pair that wire is long and produces
Pulse current produces influence.
The switch fracture II of ultrahigh speed mechanical switch embodiment of the present invention includes first switch pull bar 191 and second switch is drawn
Bar 192, the structure of first switch pull bar 191 is as shown in figure 3, the company including being connected for the drive link with repulsion operating mechanism I
Socket part 1911, connecting portion 1911 is coaxially connected with connecting valve contact on insulated connecting rod 1912, two insulated connecting rods 1912, switch
Contact and insulated connecting rod 1912 are coaxially connected, and switch contact is spaced phase successively by five sections of conductive metal pipes and four sections of insulation connecting tubes
Even constitute, the weight of switch contact is significantly reduced using tubular structure, is substantially increased under certain divide-shut brake driving force
The divide-shut brake acceleration of motion of switch lever, further reduces branch wire time, certainly, in other embodiments, Ke Yiyong
Solid cylindrical conductive metalwork and solid cylindrical insulated connecting piece correspond to replace conductive metal pipe and insulation to connect respectively
The ferromagnetism steel plate of switch contact on adapter, first switch pull bar and the particular number of insulated connecting piece can also be as needed
Design alternative.Five sections of conducting metal pipe diameters are identical, and four sections of insulation connection pipe diameters are identical, and the length of five sections of conductive metal pipes is equal
The length of more than four sections insulation connecting tubes, the right-hand member of insulated connecting rod 1912 is connected with the left end of conductive metal pipe 1913,1913
Right-hand member is sequentially connected other conductive metal pipes and insulation connecting tube, such as insulated in figure connecting tube 1914 and conductive metal pipe 1915
Annexation；The structure of second switch pull bar 192 is as shown in figure 4, the structure and first switch pull bar of second switch pull bar 192
191 is corresponding, including the connecting portion 1921 being connected for the drive link with repulsion operating mechanism III, coaxially connects on connecting portion 1921
It is connected on insulated connecting rod 1922, two insulated connecting rods 1922 and is connected with switch contact, switch contact and insulated connecting rod 1922 is coaxial
Connection, switch contact is spaced connected, identical successively by four sections of conductive metal pipes and three sections of insulation connecting tubes, in other embodiment
In, the ferromagnetism steel plate of the switch contact on first switch pull bar and the particular number of insulated connecting piece can also be set as needed
Meter selection.The shape and the conduction on first switch pull bar of these conductive metal pipes and the connecting tube that insulate on second switch pull bar
Metal tube is identical with insulation connecting tube, and the left end of insulated connecting rod 1922 is connected with the right-hand member of conductive metal pipe 1923,1923 left side
End is sequentially connected in other conductive metal pipes and insulation connecting tube, such as figure 1924,1925 and 1926 annexation；Wherein
The internal diameter of metallic conduction pipe in two switch levers 192 is just equal to the external diameter of the metallic conduction pipe on first switch pull bar 191,
Switch contact on first switch pull bar 191 can just be plugged together in the switch contact of second switch pull bar 192.
In embodiments of the invention, the pull bar of the conducting end A of conductive metal pipe 1913 and first on first switch pull bar 191
Connecting seat 4a is conductively connected, and pull bar connecting seat 4a has the connection sleeve pipe extended along switch lever axis direction and the company of being vertical at
Connectivity port in the middle part of female connector pipe, the two ends of connection sleeve pipe are respectively equipped with shading ring 5a, pull bar connecting seat 4a adapter sleeve pipe sleeve
In the periphery of conductive metal pipe 1913 and the cooperation that coincide on first switch pull bar 191, pull bar connecting seat 4a connectivity port
Contact tube 3a is conductively connected by spring touch finger, the contact tube 3a other end is conductively connected in being installed in absolutely by spring touch finger
In electrical connection 2a in the middle part of edge basin 1a, identical, the conducting end of conductive metal pipe 1923 and second on second switch pull bar 192
B pull bar connecting seat 4b is conductively connected, and pull bar connecting seat 4b equally has the connection sleeve pipe extended along switch lever axis direction
With the connectivity port being vertical in the middle part of connection sleeve pipe, the two ends of connection sleeve pipe are provided with shading ring 5b, pull bar connecting seat 4b company
Conductive metal pipe 1923 periphery and coincide cooperation, pull bar connecting seat 4b company of the female connector pipe sleeve on second switch pull bar 192
Connect in port and contact tube 3b be conductively connected by spring touch finger, the contact tube 3b other end by spring touch finger be conductively connected in
It is installed in the electrical connection 2b in the middle part of insulating basin 1b.
The ultrahigh speed Switching embodiments of the present invention realize that the principle of divide-shut brake is as follows：First switch pull bar 191 and second is opened
Close pull bar 192 close to each other or remote under the driving of repulsion operating mechanism, first switch pull bar 191 and second switch pull bar
Conducting metal section on switch contact on 192 has two kinds of position relationships, the first：Opening on first switch pull bar 191
The section of the conducting metal on contact is closed to axially move to and the insulation linkage section axial direction on the switch contact on second switch pull bar 192
When position is identical, the conducting metal section on first switch pull bar 191 bridges the switch contact on second switch pull bar 192 successively
Conducting metal section, as shown in fig. 6,1913,1926,1915,1924 are sequentially communicated until 1923, now, first switch pull bar 191
With the formation conductive path of second switch pull bar 192, electric current can be conducted to the second conducting end B from the first conducting end A, as switch
Close a floodgate；Second：Conducting metal section on switch contact on first switch pull bar 191 is moved to and second switch pull bar
When conducting metal section axial location on switch contact on 192 is identical, first switch pull bar 191 and second switch pull bar 192
On conducting metal section and the linkage section axial location that insulate it is identical and separate successively, as shown in figure 5, between 1913 and 1915 by
1914 separate, and are separated between 1915 and 1924 by 1925, now, between first switch pull bar 191 and second switch pull bar 192 not
The current loop of conducting can be formed, as separating brake is switched, it is necessary to which explanation, draws in first switch pull bar 191 and second switch
In the movement travel of bar 192, the conducting metal 1913 pull bar connecting seat all the time with the first conducting end A of section of first switch pull bar 191
4a is conductively connected, and the 1923 pull bar connecting seat 4b all the time with the second conducting end B of conducting metal section on second switch pull bar 192 is led
Electrical connection.
The course of work of the repulsion operating mechanism of the embodiment of the present invention is as follows：In separating brake, shackle rod 19, which is in, to close a floodgate
Jacking block 18 on position, i.e. shackle rod is located at the low order end of movement travel, and moving coil is located at the low order end of closing dielectric chamber,
The pulse power 10 is powered to first coil 91, and moving coil 90 produces inductive loop, the electric current side of inductive loop and first coil 91
To on the contrary, repulsion is produced between moving coil 90 and first coil 91, so that moving coil 90 drives shackle rod 19 and then drive is opened
Pull bar 191 is closed to left movement, wherein, the motion process of shackle rod is divided into two stages：First stage, due to through hole 610
In the presence of at motion initial stage of moving coil 90, the gases at high pressure of the direction of motion side of moving coil 90 can be discharged from through hole, high pressure
Gas is little and constant to the square active force of moving coil, it is ensured that the high speed divide-shut brake motion of shackle rod, when in use will not shadow
Ring the branch wire time of switch；Second stage, moving coil 90 moves to through hole to the left, with the continuation campaign of moving coil, fortune
During the excircle of Moving plate can gradually block through hole until blocking through hole, this section completely, the confession gases at high pressure discharge of through hole
Aperture is less and less, and the discharge rate of high-pressure buffer gas is fewer and fewer, and gas is increasing to the reaction force of moving coil 90, right
The buffer-braking power of moving coil is increasing, is gradually reduced the speed of moving coil, until the jacking block 18 and second of shackle rod
Stop block 121 contacts stop motion, that is, completes separating brake process, realize the repulsion operating mechanism by such gas buffer and exist
When applying in high-speed switch, can quick acting switching-off, and separating brake completion after minimum distance and in the time realize braking, keep away
Exempt from the collision of moving coil and first, second coil.In whole separating brake process, the limit spring in divide-shut brake maintaining body is in fortune
The motion early stage of Moving plate, jacking block 18 is close to spacing collar, and limit spring is compressed, and jacking block is driven to left movement in switch lever
When crossing spacing collar, limit spring elongation, when switch lever moves to jacking block and contacted with limit block fast 121, limit spring
A confining force can be applied to jacking block, maintained switch pull bar is in open position；During combined floodgate, 10 pair of second coil 92 of the pulse power
It is powered, repulsion is produced between the second coil 92 and moving coil 90, the motion process of switch lever is opposite.
In above-described embodiment, electromagnetic operating mechanism includes two and is respectively used to powered motion disk separating brake and the coil closed a floodgate,
In other embodiments, the permanent magnet mechanism that electromagnetic operating mechanism can be used cooperatively using a coil and permanent magnet.
In above-described embodiment, housing is docking together by two and docked and reeded collets are set on end face constitutes,
In other embodiment, housing can be made up of the block sealing plate of tubbiness collets and block at tubbiness collets opening,
Now, first, second coil is respectively arranged on the bucket bottom and block sealing plate of collets.
In above-described embodiment, two collets are by fixes sleeve fixation to being combined and being enclosed by first, second coil
Close and form a cushion chamber moved back and forth for moving coil or so, in other embodiments, two collets can also be by setting
Clamping plate in two collets left and right sides, which is realized, to be fixedly clamped.
In above-described embodiment, the endoporus of fixes sleeve avoids the outward flange with collets two ends from contacting, in other embodiment
In, the two ends of collets can not set outward flange, and the periphery of collets can coincide with the endoporus of fixes sleeve to be coordinated, now,
Hole on the barrel of fixes sleeve needs to communicate with the through hole on collets, so that the gas in the seal cavity of collets composition
It can discharge and enter by the hole on through hole and fixes sleeve.
In above-described embodiment, buffer medium is high pressure sulfur hexafluoride, in other embodiments, can be hydraulic oil, now,
Need to connect the through hole on collets with oil tank, this embodiment structure is complex.
In above-described embodiment, fixed seat is provided with divide-shut brake maintaining body, and the divide-shut brake maintaining body is protected using spring
Mechanism is held, in other embodiments, divide-shut brake maintaining body can be not provided with, other kinds of divide-shut brake can also be set to keep
Mechanism, such as electromagnetism maintaining body.
In above-described embodiment, limit spring is mounted in spacing collar, and the bottom of spacing collar is installed with regulating bolt, at it
In his embodiment, limit spring can be enclosed on the periphery of hollow cylinder, and the end of shackle rod, which is hinged a periphery, has block
The pipe on edge, pipe is enclosed on hollow cylinder, and block is along block in the end of limit spring, and shackle rod athletic meeting drives pipe
Slided on hollow cylinder, so as to compress or loosen limit spring, the other end endoporus of hollow cylinder can open up screw thread, spiral
A screw rod is connected, the periphery of screw rod is provided for the baffle plate of block limit spring end, and spacing bullet can be adjusted by screwing screw rod
The pre compressed magnitude of spring.
In above-described embodiment, fixed seat is provided with first, for block limit switch pull bar divide-shut brake movement travel
Two stop blocks, in other embodiments, can be not provided with stop block, and in order to avoid moving coil high-speed motion breaks first,
Two coil, can be to set reinforcing member on first, second coil again, or the one the second stop blocks are located at into other and fixes sleeve
On relatively-stationary fixed structure.
In above-described embodiment, spring retaining mechanisms are in fixed seat and are located between fixes sleeve and binding post,
In other embodiment, spring retaining mechanisms can located at other with the relatively-stationary fixture of housing.
In the present embodiment, the ferromagnetism steel plate of switch contact is spaced connection by insulated connecting piece successively, in other implementations
In example, first switch contact can be using conducting metal circle be arranged at intervals, likewise, second successively in the periphery of an insulated column
Switch contact can use the inwall in an insulation tube to be arranged at intervals leading on conducting metal circle, first time switch contact successively
The outer peripheral face of the outer peripheral face of electric metal circle and the conducting metal circle on second switch contact, which coincide, to be coordinated, as shown in Figure 7.
In the present embodiment, ferromagnetism steel plate identical length of first, second switch contact etc., the length of insulated connecting piece
All equal, in other embodiments, the length of the ferromagnetism steel plate on first switch contact can be not equal to second switch contact
On ferromagnetism steel plate length, the length of the insulated connecting piece on first switch contact can also be not equal to second switch contact
On insulated connecting piece length, as long as meet the ferromagnetism steel plate on first switch contact length be more than second switch contact
On insulation linkage section length and the ferromagnetism steel plate on second switch contact length be more than first switch contact on
Schematic diagram during the mechanical switch separating brake of the length of insulated connecting piece, as shown in Figure 8 as this embodiment, Fig. 9 institutes
Show schematic diagram during as the mechanical switch combined floodgate of this embodiment.
In the present embodiment, first, second switch contact is circular tube shaped, in other embodiments, can use endoporus shape
Shape is quadrangle or triangle or hexagon etc..
Two groups of switch levers in the ultrahigh speed switch of the embodiment of the present invention use tubular structure, are not only transported in divide-shut brake
To heart better performances during dynamic, while significantly reducing the overall weight of switch lever, two switch levers are in motion process
In be also less likely to occur relative skew or deform, it is ensured that the stability of divide-shut brake, the ferromagnetism steel plate of first switch pull bar
External diameter is just equal to the internal diameter of the ferromagnetism steel plate of second switch pull bar, realizes and closes in first, second switch lever relative motion
During lock, first, second ferromagnetism steel plate two ends can be in close contact by inside and outside circle side face, not only with preferable motion stabilization
Property, flow area is also increased, through-current capability is improved.
Claims (9)
1. being provided with inside a kind of ultrahigh speed mechanical switch, including insulation shell, the insulation shell is used for driving switch pull bar point
Close a floodgate the electromagnetic operating mechanism moved, and the electromagnetic operating mechanism includes the dynamic iron core being connected with switch lever and for dynamic
Iron core moves back and forth the seal cavity for completing divide-shut brake, and the dynamic iron core is respectively at combined floodgate when moving to seal cavity two ends
Position and open position, it is characterised in that it by seal cavity isolation is two-part moving coil that the dynamic iron core, which is, moving coil and
The face that is slidably matched of seal cavity is not present in gap, the circumferential cavity wall of the seal cavity in division gate position or close to division
Through hole inside and outside seal cavity, for passing in and out buffer medium is communicated with gate position, the ultrahigh speed mechanical switch is also wrapped
Switch fracture is included, the switch contact of the switch fracture includes contact body, and the contact body edge is moved to be interval with successively
Insulated at interval location between ferromagnetism steel plate, every two neighboring ferromagnetism steel plate, there is the ferromagnetism steel plate bridging to grow
Degree, the bridging length meets two conditions：First, in closing position, the ferromagnetism steel plate in the contact body can be bridged
Two neighboring ferromagnetism steel plate in the contact body being adapted to the contact body；Second, in open position, the contact body
On ferromagnetism steel plate at least one end be located between the two neighboring ferromagnetism steel plate in the contact body that is adapted to it between
At position.
2. ultrahigh speed mechanical switch according to claim 1, it is characterised in that the seal cavity is docked at one by two
The collets composition of groove is respectively equipped with rise, docking end face, the groove cell wall sealing of moving coil and collets is slidably matched,
Two coils for powered motion disk of electromagnetic operating mechanism are fixedly arranged on the bottom portion of groove of two collets, the through hole respectively
Adjacent coil two end faces close to each other are set.
3. ultrahigh speed mechanical switch according to claim 2, it is characterised in that two collets are by being enclosed on outside collets
The fixes sleeve in week fixes docking, and it is outer that the two ends that two collets are relatively distant from coordinate provided with being coincide with the endoporus of fixes sleeve
Flange, the two ends of the fixes sleeve are respectively provided with the stopping surface that block clamps two collets.
4. ultrahigh speed mechanical switch according to claim 3, it is characterised in that the barrel of the fixes sleeve is provided with and passed through
The hole of logical barrel.
5. ultrahigh speed mechanical switch according to claim 3, it is characterised in that one end of the fixes sleeve is provided with spring
Maintaining body, the spring retaining mechanisms include two limit springs for being symmetrically set in fixes sleeve axis both sides, in divide-shut brake
During position, the end of switch lever is located at the axis both sides of limit spring respectively, and the end of the switch lever has been respectively articulated with
Contiguous block of the limit spring close to one end of fixes sleeve axis is pressed against, the other end of the limit spring, which is provided with, to be used to adjust
The adjusting means of limit spring pre compressed magnitude.
6. ultrahigh speed mechanical switch according to claim 5, it is characterised in that two limit springs are respectively arranged on two limits
In the sleeve of position, the contiguous block slidable fit is in spacing collar, and the adjusting means includes spinning in the bottom of spacing collar
Regulating bolt, the regulating bolt put in spacing collar bottom one end connection top pressure limit spring end regulation pressure
Plate, the precommpression to limit spring can be adjusted by screwing regulating bolt.
7. the ultrahigh speed mechanical switch according to claim 5 or 6, it is characterised in that the both sides of the spring retaining mechanisms
Relative spacing is provided with the stop block for block limit switch pull bar movement travel respectively.
8. ultrahigh speed mechanical switch according to claim 1, it is characterised in that the ferromagnetism steel plate in the contact body
By insulated connecting piece successively insulation gap, the ferromagnetism steel plate and insulated connecting piece are tubulose.
9. ultrahigh speed mechanical switch according to claim 8, it is characterised in that each conductive gold in the contact body
Belong to each insulated connecting piece structure all same in part structure all same, the contact body, and the length of ferromagnetism steel plate is big
In the length of insulated connecting piece.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547980.7A CN104347304B (en) | 2014-10-16 | 2014-10-16 | A kind of ultrahigh speed mechanical switch |
| PCT/CN2015/092028 WO2016058550A1 (en) | 2014-10-16 | 2015-10-15 | Ultra-high-speed mechanical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547980.7A CN104347304B (en) | 2014-10-16 | 2014-10-16 | A kind of ultrahigh speed mechanical switch |
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| Publication Number | Publication Date |
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| CN104347304A CN104347304A (en) | 2015-02-11 |
| CN104347304B true CN104347304B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410547980.7A Active CN104347304B (en) | 2014-10-16 | 2014-10-16 | A kind of ultrahigh speed mechanical switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104347304B (en) |
| WO (1) | WO2016058550A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347304B (en) * | 2014-10-16 | 2017-07-21 | 平高集团有限公司 | A kind of ultrahigh speed mechanical switch |
| CN104362050B (en) * | 2014-10-16 | 2017-07-28 | 平高集团有限公司 | A kind of repulsion operating mechanism |
| CN104332345B (en) * | 2014-10-16 | 2017-03-01 | 平高集团有限公司 | A kind of ultrahigh speed mechanical switch and its switch fracture and its switch contact |
| CN106057554A (en) * | 2015-04-08 | 2016-10-26 | 江苏海达电气有限公司 | Enhanced isolating switch housing |
| CN107293988A (en) * | 2017-07-21 | 2017-10-24 | 深圳市赛斯电气技术有限公司 | A kind of current limliting vacuum circuit breaker ring main unit |
| CN108010792A (en) * | 2017-12-21 | 2018-05-08 | 安徽宇腾真空电气有限责任公司 | A kind of extra-high voltage direct-current permanent magnetism mixing breaker |
| CN112420413B (en) * | 2020-10-28 | 2023-11-17 | 国网山东省电力公司昌邑市供电公司 | Auxiliary insulating rod brake pulling device |
| CN112471816A (en) * | 2020-10-28 | 2021-03-12 | 闽江学院 | Multipurpose bed for old people and control method thereof |
| CN112614758A (en) * | 2020-12-07 | 2021-04-06 | 国网福建省电力有限公司检修分公司 | Quick operating mechanism of circuit breaker |
| CN117153618B (en) * | 2023-09-14 | 2024-05-07 | 西安高压电器研究院股份有限公司 | Device for limiting switching-off rebound of high-voltage vacuum switch, high-voltage vacuum switch and switching-off method thereof |
| CN117288997B (en) * | 2023-11-14 | 2024-01-26 | 山东科华电力技术有限公司 | Electrical variable monitoring device and monitoring system for cable joint |
| CN117404299B (en) * | 2023-12-15 | 2024-03-19 | 田边(福建)智能装备有限公司 | Vacuum pump |
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| CN102214522A (en) * | 2010-04-12 | 2011-10-12 | 王守林 | Permanent magnet operating mechanism with air opening damping device for high-voltage and low-voltage switches |
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| DE102007044844A1 (en) * | 2007-09-14 | 2009-03-19 | Siemens Ag | Switch i.e. low-voltage circuit-breaker, for interrupting current to protect downstream loads during short-circuit, has cover connected with armature and present between opening and coil, where cover closes can in its holding position |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016058550A1 (en) | 2016-04-21 |
| CN104347304A (en) | 2015-02-11 |
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