CN203812797U - Novel rapid multi-gap vacuum disconnecting switch - Google Patents
Novel rapid multi-gap vacuum disconnecting switch Download PDFInfo
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- CN203812797U CN203812797U CN201420181454.9U CN201420181454U CN203812797U CN 203812797 U CN203812797 U CN 203812797U CN 201420181454 U CN201420181454 U CN 201420181454U CN 203812797 U CN203812797 U CN 203812797U
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Abstract
Provided is a novel rapid multi-gap vacuum disconnecting switch. The novel rapid multi-gap vacuum disconnecting switch comprises an electrode structure, current-carrying contact points, a metal carrier structure, a driver, an insulation driving pull rod structure and a vacuum cavity. The electrode structure comprises a movable main electrode connected with a corrugated pipe and a fixed auxiliary electrode. The insulation driving pull rod structure comprises for contact point carrier fixing sealing plates for fixing current carrying contact point metal carriers, corrugated pipes connected with the contact point carrier fixing sealing plates and insulation driving pull rods. The current carrying contact points are installed on the current carrying contact point metal carriers respectively, and switch working modes under action of the insulation driving pull rods. the insulation driving pull rods drive the current carrying contact points to carry out displacement through the contact point carrier fixing sealing plates and the current carrying contact point metal carriers which are connected, thus when a switch is in a current carrying working state, the main electrode, the auxiliary electrode and the current carrying contact points form a closed circuit; when the switch is in an isolation working state, the main electrode, the auxiliary electrode and the current carrying contact points form multi-gap vacuum insulation. The novel rapid multi-gap vacuum disconnecting switch solves the application problem of multi-gap vacuum insulation in a rapid disconnecting switch, and raises the high voltage endurance of a switch.
Description
Technical field
The utility model belongs to direct current and cut-offs technical field, is specifically related to a kind of novel quick many gaps vacuum interrupter of mesohigh.
Background technology
HVDC Transmission Technology, in large capacity, remote conveying distribution field, has unique technical advantage, still, lacks operational high voltage DC breaker, and the development of HVDC Transmission Technology has been subject to great limitation and restriction.Because the impedance of direct current system is very low, when short circuit current fault occurs, the climbing speed of short circuit current is very high, therefore, necessarily requires DC circuit breaker can excise reliably at short notice short trouble.At present, at home and abroad, in the DC circuit breaker of the various topological structures of research, mesohigh quick isolation switch has been all indispensable device.
Along with the development of electric power system, the application of vacuum insulation in whole electric power system also developed fast.But the current both at home and abroad main or insulating material using flowing material as switch of the quick isolation switch of research, can not make full use of the dielectric voltage withstand characteristic of increasingly mature vacuum medium excellence.
Vacuum medium has its unique voltage endurance.By research, find, when contact clearance distance scope changes, the insulation characterisitic of vacuum gap also can change.When vacuum gap is apart from d greatly within the scope of d≤0.5mm time, it punctures and mainly depends on electric field strength, puncture voltage U
bincrease along with vacuum gap d; When vacuum gap distance is increased to after d>=2mm, the insulation characterisitic of vacuum gap enters saturation region, puncture voltage U
bwith the increase of vacuum gap d, increase and slow down.Therefore,, when contact clearance distance increases to after a certain scope, there is variation in the insulation characterisitic of vacuum gap.On this basis, in order to make full use of the insulation characterisitic of vacuum gap, in some special applied environments, traditional single break vacuum switch is difficult to meet real demand, and the vacuum switch that therefore need to develop the special construction of multi-break satisfies the demands.
Currently available technology has had significant progress, mainly by adopting two groups of contact elements and two set drive devices, by forming multi-break, improve voltage withstand capability, and reduce the operate time that switch is shortened in movement travel, be particularly typically the switch designs scheme with two groups of contact elements and two drivers (number of patent application 201210115014.9) that ABB T & D Technology Ltd. proposes.
The utility model is significantly different from existing patent and is following 5 points:
1) use of the high-speed switch in the utility model dielectric is vacuum insulation medium, and existing isolating switch design all adopts electrical insulation fluids material as dielectric.
2) in the high-speed switch that the utility model relates to, current-carrying contact is installed on the current-carrying contact metal carrier of metal material, and in existing isolating switch design, the motion carrier of current-carrying contact all adopts insulation material.
3) high-speed switch that the utility model relates to can be that a driver can be also two drivers, in existing isolating switch design, requires to have two drivers.
4) in the high-speed switch that the utility model relates to, the motion mode of the current-carrying contact metal carrier of carrying current-carrying contact can be along carrier shaft to translation, can be also to rotate along carrier surface, and existing isolating switch design all adopts along carrier shaft to translation.
5) high-speed switch that the utility model relates to adopts bellows carry out movable and be tightly connected, and existing isolating switch design does not all relate to.
Summary of the invention
The problem existing in order to solve prior art, the purpose of this utility model is to provide a kind of novel quick many gaps vacuum interrupter, has realized the application of vacuum dielectric insulation in high-speed switch, has improved the high voltage tolerance of high-speed switch.
For reaching above object, the utility model adopts following technical scheme:
A kind of novel quick many gaps vacuum interrupter, comprise cavity 120, stretch into main electrode 101 and the auxiliary electrode 121 of cavity 120 inside, be distributed in the current-carrying contact 112 between main electrode 101 and auxiliary electrode 121, support the current-carrying contact metal carrier of current-carrying contact 112, fixedly the contact carrier fixing seal plate 115,115 of current-carrying contact metal carrier '; Described cavity 120 is vacuum cavity, and cavity 120 inside are stretched in one end of described main electrode 101 and auxiliary electrode 121, and inner side end is welded with respectively main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119; Main electrode 101 is connected by main electrode bellows 106 with vacuum cavity cover plate 109; Between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119, right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 cross-distribution, be mounted with current-carrying contact 112 on right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113; Right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 are respectively by right contact carrier fixing seal plate 115 and the left contact carrier fixing seal plate 115 ' fixing seal in its outside, described right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' outside insulation is all set drives Tiebar structure or drive Tiebar structure in the arranged outside insulation of right contact carrier fixing seal plate 115, and left contact carrier fixing seal plate 115 ' outside fix.
Described right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 in the discontiguous situation in current-carrying contact 112 of himself installing, in vacuum environment each other in electric insulating state; In current-carrying contact 112, by the motion of right current-carrying contact metal carrier 111 and/or left current-carrying contact metal carrier 113, and at least form a path between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119, switch is under conducting state; Current-carrying contact 112 is by the motion of right current-carrying contact metal carrier 111 and/or left current-carrying contact metal carrier 113, and at least forms a vacuum gap between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119, and switch is under isolation.
Described right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' outside insulation be all set drive Tiebar structure, be specially: right insulation drive pull bar 118 and left insulation drive the right driving pull bar bellows 117 of the right contact carrier fixing seal plate 115 of pull bar 118 ' be arranged on respectively and left contact carrier fixing seal plate 115 ' be welded with and left driving pull bar bellows 117 ' a side, and respectively in right driving pull bar bellows 117 and left driving pull bar bellows 117 ' inside; Right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' and cavity 120 between, respectively by right driving pull bar bellows 117 and left driving pull bar bellows 117 ' drive pull bar porcelain bushing 114 and left insulation to drive pull bar porcelain bushing 114 ' be connected sealing with right insulation; Right insulation drive pull bar 118 and left insulation drive the one end of pull bar 118 ' be in addition separately installed with right driver 123 and left driver 123 '.
Described right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 and the right contact carrier fixing seal plate 115 being connected and fixed thereof and left contact carrier fixing seal plate 115 ' drive pull bar 118 or right insulation to drive motion that pull bar 118 and left insulation drive pull bar 118 ' realize for drive pull bar 118 or right insulation to drive pull bar 118 and left insulation to drive moving of pull bar 118 ' radially along right insulation with right insulation, or along the rotation on 112 surfaces, current-carrying contact.
Vacuum degree in described cavity 120 is higher than 10
-2pa.
Described current-carrying contact 112 is fixed on right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 by the mode of welding or screw, and described current-carrying contact 112 depth of sections are higher than the depth of section of right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113; Shape, size and the number of described current-carrying contact 112 determined according to actual needs; The number of described right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 is determined according to actual conditions, and is symmetrical or the combination intersected with each other of asymmetrical mode.
The distribution mode of described current-carrying contact 112 on right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 is that isosceles triangle distributes, is parallel or perpendicular to right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 radial direction distribute.
Described right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 are metal material, comprise elemental metals and alloy.
Described alloy is CuCr alloy, CuW alloy or CuBi alloy.
Described right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' material be high-strength ceramic or devitrified glass.
Described main electrode 101 is provided with the main electrode pre-compressed spring 103 that current-carrying contact 112 is provided to pressure at the partial fixing that stretches out main electrode bellows 106.At switch, under conducting state, produce the pressure for current-carrying contact 112, made the contact between current-carrying contact 112 tightr.
Many gaps of the utility model vacuum insulation high-speed switch, has solved the design challenges of vacuum insulation in high-speed switch field, has realized the application of vacuum insulation medium switch in high-speed switch field.By the further investigation for vacuum insulation characteristic, and the cognition of the high recovery voltage facing in hybrid DC circuit breaker application for high-speed switch, the high voltage resistance characteristics proposing based on vacuum insulation solves the very thorny high recovery voltage Commpensation And Adaptation of conventional fluid dielectric in direct current interrupting process.
Compared with prior art, the utlity model has following features and advantage:
1) high-speed switch use dielectric of the present utility model is vacuum insulation medium, and existing design all adopts electrical insulation fluids material as dielectric, and the utility model has been realized the application of vacuum insulation medium switch in high-speed switch field.
2) significantly improved the high voltage tolerance of high-speed switch.Vacuum insulation medium has very high voltage withstand capability, and by the design of many gaps vacuum insulation, its voltage withstand capability further improves, so the utility model has significantly improved the high voltage tolerance of high-speed switch.
3) strengthened mechanical strength and the reliability of movable member in design.In the utility model, current-carrying contact metal carrier has adopted metal material, and contact carrier fixing seal plate adopts the insulating material such as high-strength ceramic or devitrified glass.As the movable member in the design, current-carrying contact metal carrier is fixed on contact carrier fixing seal plate, and is connected with driving pull bar bellows by contact carrier fixing seal plate.So design, both guaranteed that current-carrying contact metal carrier can have certain elastic deformation in motion process, also strengthen self mechanical strength and reliability, simultaneously because contact carrier fixing seal plate has been used insulating material, also met the electricity isolation between current-carrying contact metal carrier.
Accompanying drawing explanation
Fig. 1 is that the puncture voltage of vacuum gap is with the Changing Pattern of clearance distance.
Fig. 2 is that vacuum high-speed switch of the present utility model is in the floor map of closed conducting state.
Fig. 3 is that vacuum high-speed switch of the present utility model is in the floor map of separating brake isolation.
Fig. 4 is another execution mode schematic diagram of vacuum high-speed switch of the present utility model.
Fig. 5 is the floor map of the distribution mode of current-carrying of the present utility model contact on current-carrying contact metal carrier, and wherein: Fig. 5 a is that vertical axial distributes, Fig. 5 b is that isosceles triangle distributes, and Fig. 5 c is parallel axial distribution.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, when contact clearance distance (being vacuum gap) scope changes, the insulation characterisitic of vacuum gap also can change, and is not linear change along with the variation of contact clearance distance.When vacuum gap is apart from d greatly within the scope of d≤2mm time, its puncture voltage U
balong with the increase of vacuum gap d can be regarded linear change as substantially; When vacuum gap distance is increased to after d>=2mm, the insulation characterisitic of vacuum gap enters saturation region, puncture voltage U
bwith the increase of vacuum gap d, increase and slow down.
As shown in Figure 2, a kind of novel quick many gaps of the utility model vacuum interrupter, comprise cavity 120, stretch into main electrode 101 and the auxiliary electrode 121 of cavity 120 inside, be distributed in the current-carrying contact 112 between main electrode 101 and auxiliary electrode 121, support the current-carrying contact metal carrier of current-carrying contact 112, fixedly the contact carrier fixing seal plate 115,115 of current-carrying contact metal carrier ';
Described main electrode 101 is movable main electrode, and main electrode 101 is placed in main electrode bellows 106 inside, and by main electrode sylphon seal plate 107, realization is connected with main electrode bellows 106.Meanwhile, main electrode bellows 106 is in main electrode porcelain bushing 108 inside, by main electrode bellows cover plate 105, completes and being tightly connected of main electrode porcelain bushing 108.Main electrode 101 both can, in axial motion, also can meet its bubble-tight design like this.Described main electrode 101 has been installed main electrode pre-compressed spring holddown groove 104 at the partial fixing that stretches out main electrode bellows 106.The interior installation main electrode pre-compressed spring 103 of described main electrode pre-compressed spring holddown groove 104, then in outermost, main electrode pre-compressed spring cover plate 102 is installed, main electrode pre-compressed spring cover plate 102 is connected and fixed by bolt and main electrode porcelain bushing 108.By coordinating of main electrode pre-compressed spring holddown groove 104 and main electrode pre-compressed spring cover plate 102, realize on the one hand the precommpression of main electrode spring 103 and fixing, also realized on the other hand the spacing and guide effect for main electrode 101 motions.Described main electrode 101 can be on off state handoff procedure, along the axial direction of self guide rod, there is the displacement of 2-3mm, with this, guarantee at switch under conducting state, main electrode 101 is by being welded on the main electrode touch panel 110 of its end face, generation, for the pressure of current-carrying contact 112, makes the contact between current-carrying contact 112 tightr.Described auxiliary electrode 121 is fixed joint electrode, and what be welded on auxiliary electrode end face has auxiliary electrode touch panel 119 and an auxiliary electrode insulated enclosure cover plate 122.
Described cavity 120 comprises vacuum cavity and vacuum cavity cover plate 109.Described vacuum cavity by with main electrode porcelain bushing 108, insulation driving pull bar porcelain bushing 114 and left insulation driving pull bar porcelain bushing 114 ', being tightly connected of auxiliary electrode insulated enclosure cover plate 122, played on the one hand the effect of support structure, on the other hand for designed switching function structure provides vacuum environment.As preferred implementation of the present utility model, the vacuum degree in described cavity 120 is higher than 10
-2pa.
As shown in Figures 2 and 3, as a kind of structure of the present utility model, right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' outside insulation be all set drive Tiebar structure, it is identical that described insulation drives Tiebar structure partly to comprise two groups of structures, the insulation of position symmetry drives pull bar part, comprise respectively the right contact carrier fixing seal plate 115 of fixing right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 and left contact carrier fixing seal plate 115 ', with the right driving pull bar bellows 117 of right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' be welded to connect and left driving pull bar bellows 117 ' and right insulated tension pole bellows cover plate 116 and left insulated tension pole bellows cover plate 116 ', described right insulated tension pole bellows cover plate 116 and left insulated tension pole bellows cover plate 116 ' outer ledge be welded with right insulation drive pull bar porcelain bushing 114 and left insulation drive pull bar porcelain bushing 114 '.Described right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' outside be fixed with right insulation drive pull bar 118 and left insulation drive pull bar 118 '.Two of described right driver 123 and left drivers 123 ' be are connected to right insulation and drive pull bar 118 and left insulation to drive on the terminal in pull bar 118 ' outside, effect by internal electromagnetic coil produces motion, drive right insulation drive pull bar 118 and left insulation drive pull bar 118 ', and the right contact carrier fixing seal plate 115 being attached thereto and left contact carrier fixing seal plate 115 ', and right contact carrier fixing seal plate 115 and left contact carrier fixing seal plate 115 ' above fixing right current-carrying contact metal carrier 111 and/or the current-carrying contact 112 of left current-carrying contact metal carrier 113 move respectively.
In the discontiguous situation in current-carrying contact 112 that described right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 are installed at himself, in the state that is electrically insulated from each other; In current-carrying contact 112, by the motion of right current-carrying contact metal carrier 111 and/or left current-carrying contact metal carrier 113, and at least form a path between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119, switch is under conducting state; As shown in Figure 2, main electrode 101 is conducted electricity touch panel 110 and the overlapping current-carrying contacts 112 of two row combinations by main electrode, has realized conducting with auxiliary electrode conduction touch panel 119 and the auxiliary electrode 121 that is welded in one thereof.Now, main electrode pre-compressed spring 103 is in energy storage state.Current-carrying contact 112 is by the motion of right current-carrying contact metal carrier 111 and/or left current-carrying contact metal carrier 113, and at least form a vacuum gap between right current-carrying contact metal carrier 110 and auxiliary electrode conduction touch panel 119, switch is under isolation, as shown in Figure 3, now right current-carrying contact metal carrier 111 and the left current-carrying contact metal carrier final position in separating brake motion, has formed seven vacuum gaps between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119.Now, main electrode pre-compressed spring 103 is in non-energy storage state, and main electrode 101 and main electrode conduction touch panel 110 thereof vertically, have moved default distance to current-carrying contact 112.
As shown in Figure 4, as another kind of structure of the present utility model, arranged outside insulation at right contact carrier fixing seal plate 115 drives Tiebar structure, and left contact carrier fixing seal plate 115 ' outside fix, corresponding driver also only has one, and such design can be simplified structure and the design of switch.
As shown in Figure 2, right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 are symmetrically distributed in electrode both sides, have respectively 3 contact metal carriers.Current-carrying contact 112(a, b, c, d, e, f, g, h, i, j, k, l) be uniformly distributed in right current-carrying contact metal carrier 111(a, b, c) and left current-carrying contact metal carrier 113(a, b, c).On each current-carrying contact metal carrier, 2 current-carrying contacts 112 are installed.Current-carrying contact 112 is fixed on right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 by modes such as welding or screws.Current-carrying contact 112 depth of sections, higher than the depth of section of right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113, are forming 2 paths with main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119.Article one, path is through main electrode conduction touch panel 110 boss and current-carrying contact 112(a, c, e, g, i, k) and secondary auxiliary electrode conduction touch panel 119 form; Second path is through main electrode conduction touch panel 110 boss and current-carrying contact 112(b, d, f, h, j, l) and auxiliary electrode conduction touch panel 119 form.At switch in isolation download stream contact 112 by the motion of right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113, and at least form 2 vacuum gaps between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119.In actual application, number, shape and the arrangement mode of current-carrying contact metal carrier are selected according to the actual needs.The number of current-carrying contact, shape and permutation and combination method are selected according to the actual needs.
The utility model, by the fit applications of vacuum cavity, porcelain bushing and bellows, has been realized the sealing of switch case.Pass through again post-processed, can complete the evacuation of closed environment, meet the requirement of vacuum insulation.The material of vacuum cavity and vacuum cavity cover plate 109 can be selected metal or high-intensity insulating material, and its shape is mainly the requirement that meets sealing and cost control, and both connected modes can select bolt to connect or argon arc welding welding.
The material selection of right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 and current-carrying contact 112 need to be according to the functional requirement of self.The material of current-carrying contact metal carrier 111,113, need to have higher hardness, toughness on the one hand, makes current-carrying contact metal carrier be difficult for occurring deformation; On the other hand, require the density of current-carrying contact metal carrier as far as possible little, so just can reduce the quality of action part, improve movement velocity.The material of current-carrying contact is selected, and mainly need to meet high conductivity, and also need is high-abrasive material simultaneously, because in the course of action of switch, current-carrying contact must rub.
As shown in Figure 2, first group of contact carrier 111 and second group of contact carrier 113 according to certain distribution mode, be fixed on contact carrier fixing seal plate 115 respectively, 115 ', and contact carrier fixing seal plate 115,115 ' by welding mode be connected to insulated tension pole bellows 117,117 ' on.Again by insulated tension pole bellows cover plate 116,116 ', by insulated tension pole bellows 117,117 ' and insulation drive pull bar porcelain bushing 114,114 ' weld together, realize the Seal Design of Drive Structure.Insulated tension pole bellows 117,117 ' in, drive insulated tension pole 118,118 ' be fixed on contact carrier fixing seal plate 115,115 ' upper, thereby realize being rigidly connected of driver part and carrier body.
Described driver 123,123 ' be two to be connected to driving insulated tension pole 118, on the terminal in 118 ' outside, effect by internal electromagnetic coil produces motion, drive driving insulated tension pole 118,118 ', and the contact carrier fixing seal plate 115 being attached thereto, 115 ', and contact carrier fixing seal plate 115,115 ' above respectively fixing first group of current-carrying contact metal carrier 111 and the contact carrier of second group of current-carrying contact metal carrier 113 moves.The advantage that two groups of current-carrying contact metal carriers 111,113 move is simultaneously also clearly, for same relative displacement, if two groups of current-carrying contact metal carrier motions in the opposite direction simultaneously, so can be nearly half time just can arrive final position, shortened the operate time of mechanism.
As shown in Figure 2, the utility model vacuum interrupter is in conducting state.Main electrode 101 is conducted electricity touch panel 110 and the overlapping current-carrying contacts 112 of two row combinations by main electrode, has realized conducting with auxiliary electrode conduction touch panel 119 and the auxiliary electrode 121 that is welded in one thereof.Now, main electrode pre-compressed spring 103 is in energy storage state.
As shown in Figure 3, the utility model vacuum insulation high-speed switch is in isolation.Now first group of contact carrier 111 and second group of final position that contact carrier 113 is moved in separating brake, formed seven vacuum gaps between main electrode conduction touch panel 110 and auxiliary electrode conduction touch panel 119.Now, main electrode pre-compressed spring 103 is in non-energy storage state, and main electrode 101 and main electrode conduction touch panel 110 thereof vertically, have moved default distance to current-carrying contact 112.
As shown in Figure 5, the distribution mode of described current-carrying contact 112 on right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 is that isosceles triangle distributes, is parallel or perpendicular to right current-carrying contact metal carrier 111 and left current-carrying contact metal carrier 113 radial direction distribute.
The utility model is not limited to above-mentioned preferred implementation, and those skilled in the art can make modifications and variations to novel quick many gaps of the present utility model vacuum interrupter according to guidance of the present utility model.Within all such modifications and variation all should drop on protection range of the present utility model.
Claims (10)
1. novel quick many gaps vacuum interrupter, comprise cavity (120), stretch into cavity (120) inner main electrode (101) and auxiliary electrode (121), be distributed in the current-carrying contact (112) between main electrode (101) and auxiliary electrode (121), support the current-carrying contact metal carrier of current-carrying contact (112), fixedly the contact carrier fixing seal plate (115,115 ') of current-carrying contact metal carrier; It is characterized in that:
Described cavity (120) is vacuum cavity, and cavity (120) inside is stretched in one end of described main electrode (101) and auxiliary electrode (121), and inner side end is welded with respectively main electrode conduction touch panel (110) and auxiliary electrode conduction touch panel (119); Main electrode (101) is connected by main electrode bellows (106) with vacuum cavity cover plate (109); Between main electrode conduction touch panel (110) and auxiliary electrode conduction touch panel (119), right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) cross-distribution, be mounted with current-carrying contact (112) on right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113); Right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) are respectively by right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') fixing seal in its outside, the outside of described right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') all arranges insulation and drives Tiebar structure or drive Tiebar structure in the arranged outside insulation of right contact carrier fixing seal plate (115), and the outside of left contact carrier fixing seal plate (115 ') is fixed;
Described right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) in the discontiguous situation in current-carrying contact (112) of himself installing, in vacuum environment each other in electric insulating state; In current-carrying contact (112) by the motion of right current-carrying contact metal carrier (111) and/or left current-carrying contact metal carrier (113), and between main electrode conduction touch panel (110) and auxiliary electrode conduction touch panel (119), at least form a path, switch is under conducting state; Current-carrying contact (112) is by the motion of right current-carrying contact metal carrier (111) and/or left current-carrying contact metal carrier (113), and between main electrode conduction touch panel (110) and auxiliary electrode conduction touch panel (119), at least form a vacuum gap, switch is under isolation.
2. a kind of novel quick many gaps according to claim 1 vacuum interrupter, it is characterized in that: the outside of described right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') all arranges insulation and drives Tiebar structure, be specially: right insulation drives pull bar (118) and left insulation driving pull bar (118 ') to be arranged on respectively the side that right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') are welded with right driving pull bar bellows (117) and left driving pull bar bellows (117 '), and the inside in right driving pull bar bellows (117) and left driving pull bar bellows (117 ') respectively, between right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') and cavity (120), by right driving pull bar bellows (117) and left driving pull bar bellows (117 ') and right insulation, drive pull bar porcelain bushing (114) and left insulation to drive pull bar porcelain bushing (114 ') to be connected sealing respectively, right insulation drives pull bar (118) and left insulation to drive pull bar (118 ') to be separately installed with right driver (123) and left driver (123 ') in one end in addition.
3. a kind of novel quick many gaps according to claim 2 vacuum interrupter, it is characterized in that: described right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) and the right contact carrier fixing seal plate (115) being connected and fixed thereof and left contact carrier fixing seal plate (115 ') they are to drive pull bar (118) or right insulation to drive pull bar (118) and left insulation to drive pull bar (118 ') motion radially along right insulation with the motion that right insulation drives pull bar (118) or right insulation to drive pull bar (118) and left insulation driving pull bar (118 ') to realize, or along current-carrying contact (112) surperficial rotation.
4. a kind of novel quick many gaps according to claim 1 vacuum interrupter, is characterized in that: the vacuum degree in described cavity (120) is higher than 10-2Pa.
5. a kind of novel quick many gaps according to claim 1 vacuum interrupter, it is characterized in that: described current-carrying contact (112) is fixed on right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) by the mode of welding or screw, and described current-carrying contact (112) depth of section is higher than the depth of section of right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113); Shape, size and the number of described current-carrying contact (112) determined according to actual needs; The number of described right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) is determined according to actual conditions, and is symmetrical or the combination intersected with each other of asymmetrical mode.
6. a kind of novel quick many gaps according to claim 1 vacuum interrupter, is characterized in that: the distribution mode of described current-carrying contact (112) on right current-carrying contact metal carrier (111) and left current-carrying contact metal carrier (113) is that isosceles triangle distributes, is parallel or perpendicular to right current-carrying contact metal carrier (111) and the distribution of left current-carrying contact metal carrier (113) radial direction.
7. a kind of novel quick many gaps according to claim 1 vacuum interrupter, it is characterized in that: described right current-carrying contact metal carrier (111), current-carrying contact (112) and left current-carrying contact metal carrier (113) are metal material, comprise elemental metals and alloy.
8. a kind of novel quick many gaps according to claim 7 vacuum interrupter, is characterized in that: described alloy is CuCr alloy, CuW alloy or CuBi alloy.
9. a kind of novel quick many gaps according to claim 1 vacuum interrupter, is characterized in that: the material of described right contact carrier fixing seal plate (115) and left contact carrier fixing seal plate (115 ') is high-strength ceramic or devitrified glass.
10. a kind of novel quick many gaps according to claim 1 vacuum interrupter, is characterized in that: described main electrode (101) is provided with the main electrode pre-compressed spring (103) that current-carrying contact 112 is provided to pressure at the partial fixing that stretches out main electrode bellows (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181454.9U CN203812797U (en) | 2014-04-15 | 2014-04-15 | Novel rapid multi-gap vacuum disconnecting switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420181454.9U CN203812797U (en) | 2014-04-15 | 2014-04-15 | Novel rapid multi-gap vacuum disconnecting switch |
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| CN203812797U true CN203812797U (en) | 2014-09-03 |
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| CN201420181454.9U Withdrawn - After Issue CN203812797U (en) | 2014-04-15 | 2014-04-15 | Novel rapid multi-gap vacuum disconnecting switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943406A (en) * | 2014-04-15 | 2014-07-23 | 西安交通大学 | Rapid multi-gap vacuum disconnector |
| CN108713235A (en) * | 2016-03-30 | 2018-10-26 | 伊顿智能动力有限公司 | Vacuum circuit interrupter |
-
2014
- 2014-04-15 CN CN201420181454.9U patent/CN203812797U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943406A (en) * | 2014-04-15 | 2014-07-23 | 西安交通大学 | Rapid multi-gap vacuum disconnector |
| CN103943406B (en) * | 2014-04-15 | 2015-12-02 | 西安交通大学 | A kind of Multiple level vacuum interrupter |
| CN108713235A (en) * | 2016-03-30 | 2018-10-26 | 伊顿智能动力有限公司 | Vacuum circuit interrupter |
| CN108713235B (en) * | 2016-03-30 | 2021-03-09 | 伊顿智能动力有限公司 | Vacuum circuit interrupter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20151202 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |