CN105023798A - Vacuum arc-extinguishing chamber, coil-type contact element and current coil - Google Patents
Vacuum arc-extinguishing chamber, coil-type contact element and current coil Download PDFInfo
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- CN105023798A CN105023798A CN201510396351.3A CN201510396351A CN105023798A CN 105023798 A CN105023798 A CN 105023798A CN 201510396351 A CN201510396351 A CN 201510396351A CN 105023798 A CN105023798 A CN 105023798A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact
Abstract
The invention provides a vacuum arc-extinguishing chamber, a coil-type contact element and a current coil. The current coil comprises two branch coils extending in the circumferential direction and arranged in parallel. Each branch coil comprises an upper coil section and a lower coil section which are distributed to be staggered in an upper direction and a lower direction and in series conductive connection. The two upper coil sections are two half turning coil sections arranged symmetrically with respect to the center line of the current coil. The two lower coil sections of the two branch coils are two quarter turning coil sections arranged symmetrically with respect to the center line of the current coil. Each branch coil is a three-fourths turning coil section formed by the quarter turning coil section and the half turning coil section. A current in each of two parallel connection branches formed by the two branch coils passes by the circumferential path of the three-fourths turning coil section, the current path is short, the whole circuit is small, the upper coil section and the lower coil section are arranged in central symmetry with respect to the center line of the current coil respectively, and thus distribution of the magnetic field generated by the current coil is uniform.
Description
Technical field
The present invention relates to a kind of vacuum interrupter and coil type contact assembly and current coil thereof.
Background technology
At present, in high pressure and extra high voltage circuit breaker, sulfur hexafluoride breaker in the highest flight, and sulfur hexafluoride gas has good insulation property and excellent arc extinction performance, and its compressive resistance is 2.5 times of nitrogen under same pressure.But sulfur hexafluoride gas is a kind of greenhouse gas, its monomolecular greenhouse effect are 2.2 ten thousand times of carbon dioxide, are one of 6 kinds of greenhouse gas being prohibited in " Kyodo Protocol book " to discharge, and advise forbidding sulfur hexafluoride gas in the year two thousand thirty comprehensively.Therefore, the advantage that vacuum circuit-breaker is little with its environmental pollution, maintenance workload is little, stability is high, becomes circuit breaker future thrust gradually.Current vacuum circuit-breaker is mainly used in middle pressure grade, for expanding vacuum circuit-breaker range of application, make it possible to be applied to high pressure field, the research and development of high voltage vacuum interrupter must be carried out, particularly in vacuum interrupter as the structure of contact terminal of core component, the most important thing especially in R&D work.
Dynamic and static contact assembly positioned opposite is provided with in vacuum interrupter, the structure of two contact assemblies is usually identical, comprise conducting rod respectively and conduct electricity with conducting rod the contact be connected, electrical contact assembly conventional at present mainly comprises the form such as disc contact, blowout coil contact, disc type contact contact material is made overall disc shape, its structure is simple, is mainly applicable to the control of low-voltage, small area analysis.The blowout coil contact mainly adopted in medium and high pressure field at present, this contact is mainly included in conducting rod, current coil and contact blade, current coil is arranged between conducting rod and contact blade, current coil mainly contains 1/4th coils, the forms such as 1/2nd coils and single-turn circular coil, at 1/4th coils, in 1/2nd loop constructions, contact blade offers anti-vortex groove so that contact blade is made multi-petal shape shape, the connecting portion of the position of center line of current coil and conducting rod conduct electricity and are connected, the end of every bar 1/4th coil or 1/2nd coils conducts electricity with the back side of each lobe of contact blade respectively and is connected.On circuit, conducting rod, current coil, contact blade are connected in series in order, and often cover 1/4th coil on current coil or 1/2nd coils are connected in parallel.During work, electric current flows to contact blade through conducting rod, current coil, and the magnetic direction that electric current produces is along the longitudinal direction of whole electrical contact, namely consistent with electric arc direction.
But 1/4th conventional coils or the current path of 1/2nd coils is short, magnetic field intensity is weak, and the Distribution of Magnetic Field that current coil produces is extremely uneven, arc quenching effect is poor.Be in the Chinese utility model patent of CN201508802U, disclose a kind of vacuum interrupter one circle coil contact structure at Authorization Notice No., structure of contact terminal comprises conducting rod, coil and contact blade, coil is two valve structures on a conduction cup, correspondence offers multiple groove to make coil, the coil of two valve structures has the first sub-coil and the second sub-coil, conducting rod bearing of trend is defined as above-below direction, conducting rod is positioned at above contact blade, two sub-coils comprise upper 1/2nd coil segments of series connection and lower 1/2nd coil segments respectively, lower 1/2nd coil spacings of the first sub-coil are arranged in the below of upper 1/2nd coils of the second sub-coil, lower 1/2nd coil segment intervals of the second sub-coil are arranged in the below of the first sub-coil, and be respectively equipped with gap between the relatively circumferential two ends of two upper 1/2nd coil segments, under two, the relatively circumferential two ends of 1/2nd coil segments are respectively equipped with gap.Two upper 1/2nd coils of two sub-coils conduct electricity with conducting rod and are connected, and under two of two sub-coils, 1/2nd coils conduct electricity with contact blade and are connected, and the electric current flowing to contact blade from conducting rod is divided into two parts of two parallel connections when flowing through coil.A this circle coil contact structure, relative to 1/4th conventional coils and 1/2nd coils, adds conductive path, improves magnetic field intensity.But this upper and lower ability layer all arranges that the conductive path of the current coil of 1/2nd coils is long, overall electrical resistance is comparatively large, and global magnetic field distribution is also uneven, affects the connecting-disconnecting function of structure of contact terminal in vacuum interrupter.
Summary of the invention
The invention provides that a kind of magnetic field intensity is high, the more uniform coil type contact assembly current coil of Distribution of Magnetic Field; Meanwhile, the present invention also provides a kind of the coil type contact assembly and the vacuum interrupter that use this current coil.
The technical scheme of coil type contact assembly current coil provided by the present invention is: a kind of coil type contact assembly current coil, comprise circumferentially direction to extend and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect for conducting electricity the upper coil segment that is connected and for conducting electricity with the contact blade of contact assembly the lower coil section be connected with the conducting rod of contact assembly, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
Circular gap is respectively equipped with between the relatively circumferential two ends of two upper coil segments of two described sub-coils, be respectively equipped with lower circular gap between the relatively circumferential two ends of two lower coil sections of two sub-coils, the transition linkage section between the upper and lower coil segment of each sub-coil all vertically extends along the vertical direction.
Described current coil has for conducting electricity with the conducting rod of contact assembly the conducting ring be connected, on two of conducting ring and two sub-coils, between coil segment, be respectively equipped with the conduction linking arm extended along current coil radial direction, two sub-coils two on coil segment conducted electricity with the conducting rod of described contact assembly by corresponding conduction linking arm and conducting ring and be connected.
The technical scheme of the coil type contact assembly of the above-mentioned current coil of use provided by the present invention is: a kind of coil type contact assembly, comprise the conducting rod arranged successively along the vertical direction, current coil and contact blade, current coil comprises circumferentially direction and extends and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect conduct electricity the upper coil segment that is connected and conduct electricity the lower coil section be connected with described contact blade with described conducting rod, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
Circular gap is respectively equipped with between the relatively circumferential two ends of two upper coil segments of two described sub-coils, be respectively equipped with lower circular gap between the relatively circumferential two ends of two lower coil sections of two sub-coils, the transition linkage section between the upper and lower coil segment of each sub-coil all vertically extends along the vertical direction.
Described current coil has and to conduct electricity the conducting ring be connected with described conducting rod, on two of conducting ring and two sub-coils, between coil segment, be respectively equipped with the conduction linking arm extended along current coil radial direction, two sub-coils two on coil segment conducted electricity with the conducting rod of described contact assembly by corresponding conduction linking arm and conducting ring and be connected.
Described current coil external envelope has external shield, and the top of external shield and conducting rod conduct electricity sealing-in.
Also be provided with water conservancy diversion row between described current coil and contact blade, water conservancy diversion row is conducted electricity with two lower coil sections of two sub-coils and is connected, water conservancy diversion row and contact blade sealing-in.
The technical scheme of the vacuum interrupter of the above-mentioned contact assembly of use provided by the present invention is: a kind of vacuum interrupter, comprise two contact assemblies that relative spacing is arranged, at least one contact assembly is coil type contact assembly, coil type contact assembly comprises the conducting rod arranged successively along the vertical direction, current coil and contact blade, current coil comprises circumferentially direction and extends and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect conduct electricity the upper coil segment that is connected and conduct electricity the lower coil section be connected with described contact blade with described conducting rod, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
Described current coil external envelope has external shield, and the top of external shield and conducting rod conduct electricity sealing-in.
The invention has the beneficial effects as follows: two sub-coils be arranged in parallel in contact assembly current coil provided by the present invention are all 3/4ths circle coil segments that 1/4th circle coil segments adding levels by 1/2nd circle coil segments on upper strata are formed, when circuit flows through current coil, first flow to after 1/2nd circle coils on 1/4th circle coil segments of lower floor, electric current in each parallel branch in two parallel branches that two sub-coils are formed all is passed by the circumference distance of 3/4ths circle coil segments, longer than the current path walking 1/2nd circles or 1/4th circle coil segments in prior art, add longitudinal magnetic field, shorter than the current path walking a whole circle coil segment in prior art, integrated circuit is less, and, on, lower coil Duan Jun to be centrosymmetric layout about the center line of current coil, the Distribution of Magnetic Field that current coil is produced is comparatively even.When applying the contact assembly using above-mentioned current coil, this contact assembly effectively can improve the break performance of two contact assemblies in vacuum interrupter, is more suitable for using in high tension vacuum arc-extinguishing chamber.
Further, current coil arranges conducting ring so that conduct electricity with conducting rod and be connected, realize conducting rod and be connected with the conduction of coil segment on two, conduction assembly structure is comparatively simple.
Further, at current coil external envelope external shield, can play renting of electric field shielding, the electric field strength making current coil produce like this is more even.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of coil type contact assembly current coil provided by the present invention;
Fig. 2 is the stereogram of current coil shown in Fig. 1;
Fig. 3 is 1/2nd coil magnetic field distribution schematic diagrams of the prior art;
Fig. 4 is the Distribution of Magnetic Field schematic diagram of current coil shown in Fig. 1;
Fig. 5 is the structural representation of use provided by the present invention a kind of embodiment of the coil type contact assembly of current coil as shown in Figure 1;
Fig. 6 is the decomposing schematic representation of contact assembly shown in Fig. 5;
Fig. 7 is the structural representation of water conservancy diversion row in Fig. 6;
Fig. 8 is the structural representation of contact blade in Fig. 6;
Fig. 9 is the structural representation of use provided by the present invention a kind of embodiment of the vacuum interrupter of coil type contact assembly as shown in Figure 3.
Embodiment
As Fig. 1, shown in Fig. 2, a kind of embodiment of coil type contact assembly current coil, current coil in this embodiment comprises circumferentially direction and extends and the first sub-coil 100 and the second sub-coil 200 be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect for conducting electricity the upper coil segment that is connected and for conducting electricity with the contact blade of contact assembly the lower coil section be connected with the conducting rod of contact assembly, first sub-coil 100 comprises coil segment 101 and the first lower coil section 102 on first, second sub-coil 200 comprises coil segment 201 and the second lower coil section 202 on second, wherein, first sub-coil 100 first on coil segment 101 be arranged at intervals at the top of the second lower coil section 202 of the second sub-coil 200, second sub-coil 200 second on coil segment 201 be arranged at intervals at the first sub-coil 100 first on the top of coil segment 101, and be respectively equipped with circular gap 600 between the relatively circumferential two ends of two of two sub-coils upper coil segments, lower circular gap 700 is respectively equipped with between the relatively circumferential two ends of two lower coil sections of two sub-coils.
In the present embodiment, on first, second, coil segment is two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, and two 1/4th circle coil segments that first, second lower coil Duan Zewei is arranged symmetrically with about the center line of described current coil, this makes described two sub-coils all for being added 3/4ths circle coil segments that 1/4th circle coil segments are formed by 1/2nd circle coil segments.
And, current coil in the present embodiment has for conducting electricity with the conducting rod of contact assembly the conducting ring 300 be connected, be respectively equipped with between coil segment on two of conducting ring 300 and two sub-coils conduction linking arm 400, two sub-coil extended along current coil radial direction two on coil segment to be conducted electricity with the conducting rod of described contact assembly by corresponding conduction linking arm 400 and conducting ring 300 and be connected.
In the present embodiment, First Transition linkage section 103 between the upper and lower coil segment of the first sub-coil and the second transition linkage section 203 between the upper and lower coil segment of the second sub-coil 200 all vertically extend along the vertical direction, and the upper side towards upper circular gap of each transition linkage section is upper vertical plane, is lower vertical plane towards the downside of lower circular gap.Further, the end sides towards lower circular gap of the lower coil section of two sub-coils is end vertical plane.
In addition, be convexly equipped with at the bottom position place of the end of the close lower circular gap of the lower coil section of two sub-coils and be arranged symmetrically with about the center line of current coil for arranging two conductive projections 500 on conductive projection 500, two sub-coil that conducts electricity and connect to the corresponding water conservancy diversion in contact assembly.
For ease of design processing and manufacturing, upper coil segment in two sub-coils and lower coil section place plane can be made all perpendicular to above-below direction.
In the present embodiment, the transition linkage section between upper and lower coil segment vertically extends along the vertical direction, and the side towards upper and lower circular gap of transition linkage section is perpendicular.In other embodiments, transition linkage section also can tilt to extend, and now, the side towards upper and lower circular gap of transition linkage section is clinoplain.
In the present embodiment, current coil is made up of oxygenless copper material, in other embodiments, also can select other electric conducting materials according to actual conditions.
In the present embodiment, the upper coil segment of any one sub-coil is all arranged at intervals at the top of the lower coil section of another sub-coil, like this, just end play is formed between the upper coil segment and lower coil section of different sub-coil, and, the inside of current coil is hollow, during concrete making, volume can at current coil inner and end play and on, stainless steel is added or other materials is gained in strength as mechanical support in lower circular gap, improve current coil bulk strength, also current coil bulk strength can be increased at current coil surface interpolation stainless steel layer or other materials layer as mechanical support.
Four/three-winding section that the present embodiment provides is shorter than single-turn circular coil path, and is that electric current is divided into two-way current parallel, reduces resistance.And four/three-winding section is larger than the magnetic field intensity of 1/2nd coils, and for Fig. 3 and Fig. 4, known, the Distribution of Magnetic Field of four/three-winding section on contact blade is more even.
As shown in Fig. 5 to Fig. 8, a kind of embodiment of contact assembly, contact assembly in this embodiment comprises conducting rod 11, current coil 12 and the contact blade 15 arranged successively along the vertical direction, the structure of current coil herein as shown in Figure 1 and Figure 2, do not repeat them here, during assembling, conducting rod 11 is inserted in the conducting ring endoporus of current coil.In the present embodiment, in current coil 12 outer circumferential, envelope has external shield 13, and the top of external shield 13 and conducting rod 11 conduct electricity sealing-in.Further, be also provided with water conservancy diversion row 14 between current coil 12 and contact blade 15, water conservancy diversion row 14 is conducted electricity with the conducting boss on two sub-coils in current coil 12 and is connected, and water conservancy diversion is arranged 14 and then sealed with contact blade 15.
In the present embodiment, arrange water conservancy diversion row 14 between current coil 12 and contact blade 15, electric current radially flows into inner side when flowing through water conservancy diversion and arranging 14 from the outside of water conservancy diversion row, finally flow on contact blade 15, produces longitudinal magnetic field.
Because maximum value of magnetic field concentrates on the middle part of contact blade, water conservancy diversion row needs to ensure that electric current passes through in the middle of contact blade 15, and make in beginning process, arcing point is in the centre of contact blade 15.
In the present embodiment, arrange the radome of its electric field shielding effect outside current coil, radome adopts stainless steel or other materials.
Electric current in the contact assembly provided in the present embodiment is when flowing through current coil, circuit needs the distance flowing through 3/4ths circle coils, magnetic field intensity is stronger, and all arrange about the center line of current coil due to upper and lower sub-coil, make Distribution of Magnetic Field comparatively even, add the electric field strength after radome more even, be more suitable for applying in high voltage sugarcane grower arc control device.
As shown in Figure 9, a kind of embodiment of vacuum interrupter, the vacuum interrupter in this embodiment comprises first, second contact assembly that relative spacing is arranged, the structure of two contact assemblies is identical, and its structure all adopts contact assembly as shown in Figure 3.Specifically, first contact assembly comprises the first conducting rod 1, first radome 2, first current coil 3, first water conservancy diversion row 4 and the first contact blade 5, second contact assembly comprises second contact blade 6, second water conservancy diversion row the 7, second current coil 8, secondary shielding cover 9 and the second conducting rod 10.
When first, second contact assembly closes, electric current from the first conducting rod 1 by flowing to the first current coil 3, flow to the first contact blade 5 by the first water conservancy diversion row 4 again, then flow to the second conducting rod 10 by second contact blade 6, second water conservancy diversion row the 7, second current coil 8, vice versa.
When first, second contact assembly disconnects, electric current controls vacuum arc by producing longitudinal magnetic field after the first current coil 3 and the second current coil 8.
In the vacuum interrupter that the present embodiment provides, the magnetic field intensity of contact assembly is stronger, evenly be more of value to voltage levels large opening place, vacuum interrupter will replace sulfur hexafluoride breaker, and other the use of minimizing sulphur hexafluoride, economic environmental protection.
Claims (10)
1. a coil type contact assembly current coil, comprise circumferentially direction to extend and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect for conducting electricity the upper coil segment that is connected and for conducting electricity with the contact blade of contact assembly the lower coil section be connected with the conducting rod of contact assembly, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, it is characterized in that: two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
2. coil type contact assembly current coil according to claim 1, it is characterized in that: between the relatively circumferential two ends of two upper coil segments of two described sub-coils, be respectively equipped with circular gap, be respectively equipped with lower circular gap between the relatively circumferential two ends of two lower coil sections of two sub-coils, the transition linkage section between the upper and lower coil segment of each sub-coil all vertically extends along the vertical direction.
3. coil type contact assembly current coil according to claim 1 and 2, it is characterized in that: described current coil has for conducting electricity with the conducting rod of contact assembly the conducting ring be connected, on two of conducting ring and two sub-coils, between coil segment, be respectively equipped with the conduction linking arm extended along current coil radial direction, two sub-coils two on coil segment conducted electricity with the conducting rod of described contact assembly by corresponding conduction linking arm and conducting ring and be connected.
4. a coil type contact assembly, comprise the conducting rod arranged successively along the vertical direction, current coil and contact blade, current coil comprises circumferentially direction and extends and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect conduct electricity the upper coil segment that is connected and conduct electricity the lower coil section be connected with described contact blade with described conducting rod, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, it is characterized in that: two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
5. coil type contact assembly according to claim 4, it is characterized in that: between the relatively circumferential two ends of two upper coil segments of two described sub-coils, be respectively equipped with circular gap, be respectively equipped with lower circular gap between the relatively circumferential two ends of two lower coil sections of two sub-coils, the transition linkage section between the upper and lower coil segment of each sub-coil all vertically extends along the vertical direction.
6. coil type contact assembly according to claim 4, it is characterized in that: described current coil has and to conduct electricity the conducting ring be connected with described conducting rod, on two of conducting ring and two sub-coils, between coil segment, be respectively equipped with the conduction linking arm extended along current coil radial direction, two sub-coils two on coil segment conducted electricity with the conducting rod of described contact assembly by corresponding conduction linking arm and conducting ring and be connected.
7. the coil type contact assembly according to claim 4 or 5 or 6, is characterized in that: described current coil external envelope has external shield, and the top of external shield and conducting rod conduct electricity sealing-in.
8. the coil type contact assembly according to claim 4 or 5 or 6, is characterized in that: be also provided with water conservancy diversion row between described current coil and contact blade, and water conservancy diversion row is conducted electricity with two lower coil sections of two sub-coils and is connected, water conservancy diversion row and contact blade sealing-in.
9. a vacuum interrupter, comprise two contact assemblies that relative spacing is arranged, at least one contact assembly is coil type contact assembly, coil type contact assembly comprises the conducting rod arranged successively along the vertical direction, current coil and contact blade, current coil comprises circumferentially direction and extends and two sub-coils be arranged in parallel, each sub-coil include be in staggered distribution in the vertical direction and series conductor connect conduct electricity the upper coil segment that is connected and conduct electricity the lower coil section be connected with described contact blade with described conducting rod, two upper coil segments are two 1/2nd circle coil segments be arranged symmetrically with about the center line of current coil, it is characterized in that: two lower coil sections of two described sub-coils are two 1/4th circle coil segments be arranged symmetrically with about the center line of described current coil, described two sub-coils are all for being added 3/4ths circle coil segments that 1/2nd circle coil segments are formed by 1/4th circle coil segments.
10. vacuum interrupter according to claim 9, is characterized in that: described current coil external envelope has external shield, and the top of external shield and conducting rod conduct electricity sealing-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396351.3A CN105023798B (en) | 2015-07-08 | 2015-07-08 | A kind of vacuum interrupter and coil type contact assembly and its current coil |
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| CN201510396351.3A CN105023798B (en) | 2015-07-08 | 2015-07-08 | A kind of vacuum interrupter and coil type contact assembly and its current coil |
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| CN105023798A true CN105023798A (en) | 2015-11-04 |
| CN105023798B CN105023798B (en) | 2017-10-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106960755A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | A kind of contact system and the monopole arc-chutes and on-load switch using the contact system |
| CN110289191A (en) * | 2019-07-18 | 2019-09-27 | 西安交通大学 | A kind of 2/4ths circle coil forms indulge the vacuum interrupter of magnetic structure of contact terminal and application |
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| CN110289191B (en) * | 2019-07-18 | 2020-11-17 | 西安交通大学 | Two-quarter-turn coil type longitudinal magnetic contact structure and vacuum arc-extinguishing chamber applying same |
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| Publication number | Publication date |
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| CN105023798B (en) | 2017-10-20 |
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Inventor after: Zhang Xuemin Inventor after: Lin Yihong Inventor after: Bian Zhiwen Inventor after: Wang Xiaoqin Inventor after: Shi Dacheng Inventor after: Li Wenyi Inventor after: Li Min Inventor after: Ge Yuanyuan Inventor after: Zhang Guoyue Inventor after: Zhong Jianying Inventor after: Yuan Duanlei Inventor before: Zhang Xuemin Inventor before: Wang Xiaoqin Inventor before: Shi Dacheng Inventor before: Li Wenyi Inventor before: Li Min Inventor before: Ge Yuanyuan Inventor before: Zhang Guoyue Inventor before: Zhong Jianying Inventor before: Yuan Duanlei |
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Effective date of registration: 20151230 Address after: 300304 Tianjin District of Dongli City Huaming Road No. 20 North venture building A2 block 5 Applicant after: TIANJIN GAOPING INTELLIGENT ELECTRICAL CO., LTD. Applicant after: Pinggao Group Co., Ltd. Applicant after: State Grid Corporation of China Applicant after: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. Address before: 300304 Tianjin District of Dongli City Huaming Road No. 20 North venture building A2 block 5 Applicant before: TIANJIN GAOPING INTELLIGENT ELECTRICAL CO., LTD. |
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