CN105006403B - A kind of vacuum interrupter and its contact assembly and contact assembly current coil - Google Patents
A kind of vacuum interrupter and its contact assembly and contact assembly current coil Download PDFInfo
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- CN105006403B CN105006403B CN201510396314.2A CN201510396314A CN105006403B CN 105006403 B CN105006403 B CN 105006403B CN 201510396314 A CN201510396314 A CN 201510396314A CN 105006403 B CN105006403 B CN 105006403B
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Classifications
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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
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present invention provides a kind of vacuum interrupter and its contact assembly and contact assembly current coil, current coil includes two sub-coils that circumferentially direction extends and is arranged in parallel, each sub-coil be included in be in staggered distribution on above-below direction and series conductor connection coil section and lower coil section, two lower coil sections are two 1/2nd circle coil segments being arranged symmetrically on the center line of current coil, two coils section of two sub-coils is two a quarter circle coil segments being arranged symmetrically on the center line of the current coil, 3/4ths circle coil segments of two sub-coils to be formed by a quarter circle coil segment plus 1/2nd circle coil segments.The electric current in each parallel branch in two parallel branches that two sub-coils are formed is passed by the circumference distances of 3/4ths circle coil segments, current path is short, integrated circuit is smaller, upper and lower coil segment is centrosymmetric arrangement on the center line of current coil so that the Distribution of Magnetic Field produced by current coil is more uniform.
Description
Technical field
The present invention relates to a kind of vacuum interrupter and its contact assembly and contact assembly current coil.
Background technology
At present, in high pressure and extra high voltage circuit breaker sulfur hexafluoride breaker in the highest flight, sulfur hexafluoride gas has good
Good insulating properties and excellent arc extinction performance, its compressive resistance are 2.5 times of nitrogen under same pressure.But sulfur hexafluoride gas
Body is a kind of greenhouse gases, and its monomolecular greenhouse effects is 2.2 ten thousand times of carbon dioxide, is《Kyodo Protocol book》In be prohibited
One of 6 kinds of greenhouse gases of discharge, and advise disabling sulfur hexafluoride gas comprehensively in the year two thousand thirty.Therefore, vacuum circuit breaker is with it
The advantage that environmental pollution is small, maintenance workload is small, stability is high, is increasingly becoming breaker future thrust.Current
Vacuum circuit breaker is mainly used in middle pressure grade, must to expand vacuum circuit breaker application so that can apply to high pressure field
The research and development of high voltage vacuum interrupter must be carried out, as the structure of contact terminal of core component particularly in vacuum interrupter, are even more
The most important thing in R＆D work.
Dynamic and static contact assembly positioned opposite is provided with vacuum interrupter, the structure of two contact assemblies is generally identical, divided equally
Not Bao Kuo conducting rod and the contact connected with conducting rod conduction, at present conventional electrical contact component mainly include disc contact,
The forms such as blowout coil contact, disc type contact is that contact material is made to overall disc shape, and its is simple in construction, mainly
Suitable for low-voltage, the control of low current.The blowout coil contact mainly used in medium and high pressure field at present, this contact
Mainly include conducting rod, current coil and contact blade, current coil is arranged between conducting rod and contact blade, and current coil is main
There are the forms such as a quarter coil, 1/2nd coils and single-turn circular coil, in a quarter coil, 1/2nd loop constructions
In, anti-vortex groove is offered on contact blade contact blade is made into multi-petal shape shape, the connecting portion of the position of center line of current coil
It is connected with conducting rod conduction, the back side of the ends of every a quarter coil or 1/2nd coils respectively with each valve of contact blade
Conduction is connected.On circuit, conducting rod, current coil, contact blade are to be connected in series in order, four points of the often set on current coil
One of coil or 1/2nd coils be connected in parallel.During work, electric current flows to contact blade through conducting rod, current coil, electricity
Longitudinal direction of the raw magnetic direction of miscarriage along whole electrical contact, i.e., it is consistent with electric arc direction.
But the conventional a quarter coil or current path of 1/2nd coils is short, magnetic field intensity is weak, and current coil
The Distribution of Magnetic Field of generation is extremely uneven, and arc quenching effect is poor.In the Chinese utility model that Authorization Notice No. is CN201508802U
A kind of circle coil contact structure of vacuum interrupter one is disclosed in patent, structure of contact terminal includes conducting rod, coil and contact blade, line
Enclose on a conductive cup correspondence offer multiple grooves to cause coil to be in two valve structures, the coils of two valve structures has the
One sub-coil and the second sub-coil, above-below direction is defined as by conducting rod bearing of trend, and conducting rod is located above contact blade, two points
Coil includes upper 1/2nd coil segment and lower 1/2nd coil segment of series connection, lower 1/2nd line of the first sub-coil respectively
Arranged for interval is enclosed in the lower section of upper 1/2nd coil of the second sub-coil, lower 1/2nd coil segments interval of the second sub-coil
It is arranged between the lower section of the first sub-coil, and the relatively circumferential two ends of two upper 1/2nd coil segments and is respectively equipped with gap,
The relatively circumferential two ends of 1/2nd coil segments are respectively equipped with gap under two.Two upper 1/2nd coils of two sub-coils with
Conducting rod is conductively connected, and 1/2nd coils are conductively connected with contact blade under two of two sub-coils, and contact is flowed to from conducting rod
The electric current of piece is divided into two parts of parallel connection in flowing through coil.This circle coil contact structure relative to conventional four/
For one coil and 1/2nd coils, conductive path is added, magnetic field intensity is improved.But this upper and lower layer arranges two
The conductive path of the current coil of/mono- coil is long, and overall electrical resistance is larger, and global magnetic field distribution is also uneven, and influence is touched
Connecting-disconnecting function of the header structure in vacuum interrupter.
The content of the invention
The present invention provides a kind of magnetic field intensity height, the more uniform contact assembly current coil of Distribution of Magnetic Field；Meanwhile, this
Invention also provides a kind of contact assembly and vacuum interrupter using the current coil.
Contact assembly provided by the present invention is with the technical scheme of current coil：A kind of contact assembly current coil,
Two sub-coils for extending and being arranged in parallel including circumferentially direction, each sub-coil, which is included on above-below direction, to be in staggered distribution and goes here and there
Join the coil section for being used to be conductively connected with the conducting rod of contact assembly that is conductively connected and for the contact blade with contact assembly
The lower coil section being conductively connected, two lower coil sections are two 1/2nd circles being arranged symmetrically on the center line of current coil
Coil segment, two coils section of described two sub-coils is be arranged symmetrically two four of center line on the current coil
/ mono- circle coil segment, two sub-coil is formed by a quarter circle coil segment plus 1/2nd circle coil segments
3/4ths circle coil segments.
Circular gap, two points are respectively equipped between the relatively circumferential two ends of two coils section of two described sub-coils
Lower circular gap, the upper and lower coil of each sub-coil are respectively equipped between the relatively circumferential two ends of two lower coils section of coil
Transition linkage section between section tilts the upper side of circular gap in extension, the direction of each transition linkage section and put down for upper tilt
Face, towards the downside of lower circular gap be lower slanted plane, each sub-coil lower coil section the lower circular gap of direction end
Portion side is sloped-end plane.
Described current coil has the conducting ring for being used for being conductively connected with the conducting rod of contact assembly, in conducting ring and two
It is respectively equipped between the two coils section of sub-coil and is conductively connected arm along what current coil was radially extended, the two of two sub-coils reaches the standard grade
Circle section is conductively connected by being conductively connected the conducting rod of arm and conducting ring and the contact assembly accordingly.
The technical scheme of contact assembly provided by the present invention using above-mentioned current coil is：A kind of contact assembly, bag
Include the conducting rod being sequentially arranged along the vertical direction, current coil and contact blade, current coil includes circumferentially direction extension and simultaneously
Join arrangement two sub-coils, each sub-coil be included in be in staggered distribution on above-below direction and series conductor connection with the conduction
Coil that bar is conductively connected section and the lower coil section being conductively connected with the contact blade, two lower coils sections are on electric current line
Two 1/2nd circle coil segments that the center line of circle is arranged symmetrically, two coils section of described two sub-coils is on institute
Two a quarter circle coil segments that the center line of current coil is arranged symmetrically are stated, two sub-coil is by a quarter circle
Coil segment adds 3/4ths circle coil segments that 1/2nd circle coil segments are formed.
Circular gap, two points are respectively equipped between the relatively circumferential two ends of two coils section of two described sub-coils
Lower circular gap, the upper and lower coil of each sub-coil are respectively equipped between the relatively circumferential two ends of two lower coils section of coil
Transition linkage section between section tilts the upper side of circular gap in extension, the direction of each transition linkage section and put down for upper tilt
Face, towards the downside of lower circular gap be lower slanted plane, each sub-coil lower coil section the lower circular gap of direction end
Portion side is sloped-end plane.
Described current coil has the conducting ring that is conductively connected with the conducting rod, the two of conducting ring and two sub-coils
It is respectively equipped between coil section and is conductively connected arm along what current coil was radially extended, the two coils section of two sub-coils passes through phase
The conducting rod for being conductively connected arm and conducting ring and the contact assembly answered is conductively connected.
Described current coil external envelope has external shield, top and the conductive sealing-in of conducting rod of external shield.
Water conservancy diversion row, water conservancy diversion row and two lower coils section of two sub-coils are additionally provided between described current coil and contact blade
It is conductively connected, water conservancy diversion row and contact blade sealing-in.
The technical scheme of vacuum interrupter provided by the present invention using above-mentioned contact assembly is：A kind of vacuum extinction
Room, includes two contact assemblies of relative spacing arrangement, and at least one contact assembly is coil type contact assembly, coil type sets of contacts
Part includes conducting rod, current coil and the contact blade being sequentially arranged along the vertical direction, and current coil extends including circumferentially direction
And two sub-coils being arranged in parallel, each sub-coil be included in be in staggered distribution on above-below direction and series conductor connection with it is described
Coil that conducting rod is conductively connected section and the lower coil section being conductively connected with the contact blade, two lower coils sections are on electricity
Two 1/2nd circle coil segments that the center line of streamline circle is arranged symmetrically, two coil Duan Weiguan of described two sub-coils
Two a quarter circle coil segments being arranged symmetrically in the center line of the current coil, two sub-coil be by four/
One circle coil segment adds 3/4ths circle coil segments that 1/2nd circle coil segments are formed.
Described current coil external envelope has external shield, top and the conductive sealing-in of conducting rod of external shield.
The beneficial effects of the invention are as follows：Contact assembly provided by the present invention is with two separated times being arranged in parallel in current coil
3/4ths circle lines of the circle to be formed by a quarter circle coil segment on upper strata plus 1/2nd circle coil segments of lower floor
Section is enclosed, when circuit flows through current coil, is first passed through on 1/2nd circle coil segments that lower floor is flowed to after a quarter circle coil,
3/4ths circle coil segments so that the electric current in each parallel branch in two parallel branches that two sub-coils are formed is passed by
Circumference distance, the current path than walking 1/2nd circles or four/circle coil segment in the prior art will grow, and add longitudinal direction
Magnetic field, the current path than walking a whole circle coil segment in the prior art is short, and integrated circuit is smaller, also, upper and lower coil segment is closed
It is centrosymmetric arrangement in the center line of current coil so that the Distribution of Magnetic Field produced by current coil is more uniform.In application
Using above-mentioned current coil contact assembly when, this contact assembly can be effectively improved two contact assemblies in vacuum interrupter
Break performance, is more suitable for using in high tension vacuum arc-extinguishing chamber.
Further, set conducting ring in order to be conductively connected with conducting rod on current coil, realize on conducting rod and two
Coil segment is conductively connected, and conductive assembling structure is relatively simple.
Further, in current coil external envelope external shield, the rental of shielding electric field can be played, so that electric current
Electric-field intensity produced by coil is more uniform.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of 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 fields distribution schematic diagram of the prior art；
Fig. 4 is the Distribution of Magnetic Field schematic diagram of current coil shown in Fig. 1；
Fig. 5 is a kind of structure of embodiment of the contact assembly provided by the present invention using current coil as shown in Figure 1
Schematic diagram；
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 a kind of knot of embodiment of the vacuum interrupter provided by the present invention using contact assembly as shown in Figure 3
Structure schematic diagram.
Embodiment
As shown in Figure 1 and Figure 2, the current coil in a kind of embodiment of current coil, the embodiment includes circumferentially direction
The first sub-coil 100 and the second sub-coil 200 for extending and being arranged in parallel, each sub-coil, which is included on above-below direction, to be staggered point
Cloth and the coil section for being used to be conductively connected with the conducting rod of contact assembly of series conductor connection and for contact assembly
The lower coil section that contact blade is conductively connected, the first sub-coil 100 includes the first coil section 101 and the first lower coil section 102, the
Equinoctial line circle 200 includes the second coil section 201 and the second lower coil section 202, wherein, the first of the first sub-coil 100 reaches the standard grade
Circle section 101 is arranged at intervals at the top of the second lower coil section 202 of the second sub-coil 200, and the second of the second sub-coil 200 reaches the standard grade
Circle section 201 is then arranged at intervals at the top of the first coil section 101 of the first sub-coil 100, and two of two sub-coils reach the standard grade
Circular gap, the relatively circumferential two ends of two lower coils section of two sub-coils are respectively equipped between the relatively circumferential two ends of circle section
Between be respectively equipped with lower circular gap.
In the present embodiment, first, second lower coil section is be arranged symmetrically two two of center line on current coil
/ mono- circle coil segment, and two that first, second coil Duan Zewei is arranged symmetrically on the center line of the current coil
A quarter circle coil segment, this causes two sub-coil to be to add 1/2nd circle coil segments by a quarter circle coil segment
3/4ths circle coil segments formed.
Also, the current coil in the present embodiment has the conducting ring for being used for being conductively connected with the conducting rod of contact assembly
300, it is respectively equipped between the two coils section of the sub-coil of conducting ring 300 and two along being conductively connected that current coil is radially extended
Arm 400, the two coils section of two sub-coils by being conductively connected arm 400 and conducting ring 300 and the contact assembly accordingly
Conducting rod is conductively connected.
In the present embodiment, the separated time of First Transition linkage section 103 and second between the upper and lower coil segment of the first sub-coil
The second transition linkage section 203 between the upper and lower coil segment of circle 200 tilts extension, and each transition linkage section towards last week
To the upper side in gap be upper slanted plane, towards the downside of lower circular gap be lower slanted plane.Also, two sub-coils
The end sides of the lower circular gap of direction of lower coil section are sloped-end plane.
In addition, being convexly equipped with the bottom position of the end of the close lower circular gap of the lower coil section of two sub-coils is used for
Two conductive projections 500 on the conductive projection 500 that water conservancy diversion row corresponding in contact assembly is conductively connected, two sub-coils are on electricity
The center line of streamline circle is arranged symmetrically.
For ease of design processing and manufacturing, plane where can causing the coil section and lower coil section in two sub-coils is equal
Perpendicular to above-below direction.
In the present embodiment, the transition linkage section between upper and lower coil segment tilts extension, in other embodiments, can also
So that transition linkage section is extended vertically along the vertical direction, now, the side of the upper and lower circular gap of direction of transition linkage section is
Perpendicular.
In the present embodiment, current coil is made up of oxygenless copper material, in other embodiments, can also be according to actual conditions
From other conductive materials.
In the present embodiment, the coil Duan Jun of any one sub-coil is arranged at intervals at the lower coil section of another sub-coil
Top, so, axial gap, also, current coil are just formed between the coil section and lower coil section of different sub-coils
Inside to be hollow, when specifically making, volume can be added not inside current coil and in axial gap and upper and lower circular gap
Rust steel or other materials increase intensity as mechanical support, improve current coil bulk strength, can also be on current coil surface
Stainless steel layer or other materials layer, which are added, as mechanical support increases current coil bulk strength.
Four/three-winding section that the present embodiment is provided is shorter than single-turn circular coil path, and is that electric current is divided into two-way electricity
Stream is in parallel, reduces resistance.And four/three-winding section than 1/2nd coils magnetic field intensity it is big, also, for Fig. 3 with
Fig. 4, it is known that, Distribution of Magnetic Field of four/three-winding section on contact blade is more uniformly distributed.
As shown in Fig. 5 to Fig. 8, a kind of embodiment of contact assembly, the contact assembly in the embodiment includes vertically side
To the conducting rod 11, current coil 12 and contact blade 15 being sequentially arranged, the structure of current coil herein as shown in Figure 1 and Figure 2,
It will not be repeated here, during assembling, in the conducting ring endoporus that conducting rod 11 is inserted to current coil.In the present embodiment, in electric current
The outer circumferential envelope of coil 12 has external shield 13, top and the conductive sealing-in of conducting rod 11 of external shield 13.Also, in electric current
Water conservancy diversion row 14, water conservancy diversion row 14 and the conductive stud on two sub-coils in current coil 12 are additionally provided between coil 12 and contact blade 15
Platform is conductively connected, and water conservancy diversion row 14 then seals with contact blade 15, and sealing-in herein is welding sealing-in.
In the present embodiment, water conservancy diversion is set to arrange 14 between current coil 12 and contact blade 15, electric current is flowing through water conservancy diversion row 14
When from water conservancy diversion arrange inflow radially outside on the inside of, finally flow on contact blade 15, produce longitudinal magnetic field.
Because maximum value of magnetic field concentrates on the middle part of contact blade, water conservancy diversion row needs to ensure electric current in the middle of contact blade 15
Pass through so that during the beginning, arcing point is in the centre of contact blade 15.
In the present embodiment, the radome for setting it to shield electric field action outside current coil, radome using stainless steel or
Person's other materials.
The electric current in contact assembly provided in the present embodiment when flowing through current coil, circuit needs to flow through four/
The distance of three circle coils, magnetic field intensity is stronger, and the center line due to upper and lower sub-coil on current coil is arranged so that
Distribution of Magnetic Field is more uniform, and the electric-field intensity after addition radome is more uniform, more suitable for being answered in high voltage sugarcane grower's arc-chutes
With.
As shown in figure 9, the vacuum interrupter in a kind of embodiment of vacuum interrupter, the embodiment includes relative spacing cloth
First, second contact assembly put, the structure of two contact assemblies is identical, and its structure uses contact assembly as shown in Figure 8.Tool
For body, the first contact assembly includes the first conducting rod 1, the first radome 2, the first current coil 3, the first water conservancy diversion row 4 and the
One contact blade 5, the second contact assembly include the second contact blade 6, the second water conservancy diversion arrange the 7, second current coil 8, secondary shielding cover 9 and
Second conducting rod 10.
When first, second contact assembly is closed, electric current by flowing to the first current coil 3, then leads to from the first conducting rod 1
Cross the first water conservancy diversion row 4 and flow to the first contact blade 5, then arrange the 7, second current coil 8 by the second contact blade 6, the second water conservancy diversion and flow to
Second conducting rod 10, vice versa.
When first, second contact assembly disconnects, electric current after the first current coil 3 and the second current coil 8 by producing
Longitudinal magnetic field is controlled to vacuum arc.
The magnetic field intensity of contact assembly is stronger in the vacuum interrupter that the present embodiment is provided, evenly, is relatively beneficial to height
Voltage class large opening place, vacuum interrupter will replace sulfur hexafluoride breaker, reduce sulfur hexafluoride others and use, economical
Environmental protection.
Claims (10)
1. a kind of contact assembly current coil, including two sub-coils that circumferentially direction extends and is arranged in parallel, each sub-coil
It is included in and is in staggered distribution on above-below direction and series conductor connection is used for what is be conductively connected with the conducting rod of contact assembly
Coil segment and the lower coil section being conductively connected for the contact blade with contact assembly, two lower coil sections are on current coil
Two 1/2nd circle coil segments that center line is arranged symmetrically, it is characterised in that：Two coils section of two described sub-coils
Two a quarter circle coil segments being arranged symmetrically for the center line on the current coil, two sub-coil is by four
/ mono- circle coil segment adds 3/4ths circle coil segments that 1/2nd circle coil segments are formed.
2. contact assembly current coil according to claim 1, it is characterised in that：On two of two described sub-coils
Circular gap, relatively circumferential the two of two lower coils section of two sub-coils are respectively equipped between the relatively circumferential two ends of coil segment
The transition linkage section being respectively equipped between end between lower circular gap, the upper and lower coil segment of each sub-coil tilts extension, respectively
The upper side of circular gap is upper slanted plane, is lower inclination towards the downside of lower circular gap in the direction of transition linkage section
Plane, the end sides of the lower circular gap of direction of the lower coil section of each sub-coil are sloped-end plane.
3. contact assembly current coil according to claim 1 or 2, it is characterised in that：Described current coil has
The conducting ring being conductively connected for the conducting rod with contact assembly, between the two coils section of conducting ring and two sub-coils respectively
Be conductively connected arm provided with what is radially extended along current coil, the two coils sections of two sub-coils by be conductively connected accordingly arm and
The conducting rod of conducting ring and the contact assembly is conductively connected.
4. a kind of contact assembly, including conducting rod, current coil and the contact blade being sequentially arranged along the vertical direction, current coil bag
Two sub-coils that circumferentially direction extends and is arranged in parallel are included, each sub-coil, which is included on above-below direction, to be in staggered distribution and connect
The coil being conductively connected with the conducting rod section being conductively connected and the lower coil section being conductively connected with the contact blade, two
Lower coil section is two 1/2nd circle coil segments being arranged symmetrically on the center line of current coil, it is characterised in that：It is described
Two coils sections of two sub-coils be two a quarter circle lines being arranged symmetrically of center line on the current coil
Enclose section, 3/4ths circles of two sub-coil to be formed by a quarter circle coil segment plus 1/2nd circle coil segments
Coil segment.
5. contact assembly according to claim 4, it is characterised in that：The phase of two coils section of two described sub-coils
To being respectively equipped between circumferential two ends between upper circular gap, the relatively circumferential two ends of two lower coils section of two sub-coils respectively
Provided with lower circular gap, the transition linkage section between the upper and lower coil segment of each sub-coil tilts extension, each transition linkage section
Direction on circular gap upper side be upper slanted plane, towards the downside of lower circular gap be lower slanted plane, each point
The end sides of the lower circular gap of direction of the lower coil section of coil are sloped-end plane.
6. contact assembly according to claim 4, it is characterised in that：Described current coil has leads with the conducting rod
The conducting ring of electrical connection, is respectively equipped with what is radially extended along current coil between the two coils section of conducting ring and two sub-coils
It is conductively connected arm, the two coils sections of two sub-coils by being conductively connected leading for arm and conducting ring and the contact assembly accordingly
Electric pole is conductively connected.
7. the contact assembly according to claim 4 or 5 or 6, it is characterised in that：Described current coil external envelope has external screen
Cover cover, top and the conductive sealing-in of conducting rod of external shield.
8. the contact assembly according to claim 4 or 5 or 6, it is characterised in that：Between described current coil and contact blade
Water conservancy diversion row is additionally provided with, water conservancy diversion row and two lower coils section of two sub-coils are conductively connected, water conservancy diversion row and contact blade sealing-in.
9. a kind of vacuum interrupter, includes two contact assemblies of relative spacing arrangement, at least one contact assembly touches for coil type
Head assembly, coil type contact assembly includes conducting rod, current coil and the contact blade being sequentially arranged along the vertical direction, current coil
Two sub-coils for extending and being arranged in parallel including circumferentially direction, each sub-coil, which is included on above-below direction, to be in staggered distribution and goes here and there
The lower coil section for joining the coil being conductively connected with the conducting rod section being conductively connected and being conductively connected with the contact blade, two
Individual lower coil section is two 1/2nd circle coil segments being arranged symmetrically on the center line of current coil, it is characterised in that：Institute
The two coils section for two sub-coils stated is two a quarter circles being arranged symmetrically on the center line of the current coil
Coil segment, two sub-coil for by a quarter circle coil segment add 1/2nd circle coil segments formed 3/4ths
Circle coil segment.
10. vacuum interrupter according to claim 9, it is characterised in that：Described current coil external envelope has external shield
Cover, top and the conductive sealing-in of conducting rod of external shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396314.2A CN105006403B (en) | 2015-07-08 | 2015-07-08 | A kind of vacuum interrupter and its contact assembly and contact assembly current coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396314.2A CN105006403B (en) | 2015-07-08 | 2015-07-08 | A kind of vacuum interrupter and its contact assembly and contact assembly current coil |
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| CN107993882B (en) * | 2017-11-23 | 2020-03-13 | 平高集团有限公司 | Vacuum arc-extinguishing chamber and longitudinal magnetic sector iron core type contact assembly and contact blade thereof |
| CN112509856B (en) * | 2020-09-25 | 2022-10-21 | 平高集团有限公司 | Contact coil for generating arc extinguishing magnetic field and vacuum arc extinguishing chamber contact structure |
| CN112216533B (en) * | 2020-10-29 | 2022-06-14 | 阜阳中骄智能科技有限公司 | Contact protection mechanism based on arc shielding structure |
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| CN100397538C (en) * | 2005-03-28 | 2008-06-25 | 温岭市紫光电器有限公司 | Double turn type longitudinal magnetic field contact for vacuum arc extinguishing chamber |
| CN201364855Y (en) * | 2009-01-14 | 2009-12-16 | 湖北汉光科技股份有限公司 | Vacuum switch tube |
| CN201508802U (en) * | 2009-10-16 | 2010-06-16 | 中国振华电子集团宇光电工有限公司 | One-turn coil contact structure of vacuum arc-extinguishing chamber |
| CN201886888U (en) * | 2010-11-15 | 2011-06-29 | 山东泰开互感器有限公司 | High-voltage wiring device for voltage transformer used on combined electrical apparatus |
| CN204792599U (en) * | 2015-07-08 | 2015-11-18 | 天津平高智能电气有限公司 | Vacuum interrupter and contact subassembly and contact current coil for subassembly thereof |
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Inventor after: Wang Xiaoqin Inventor after: Zhang Xuemin Inventor after: Li Wenyi Inventor after: Shi Dacheng Inventor after: Li Min Inventor after: Wu Junhui Inventor after: Guan Qi Inventor after: Lin Yihong Inventor after: Bian Zhiwen Inventor before: Wang Xiaoqin Inventor before: Zhang Xuemin Inventor before: Li Wenyi Inventor before: Shi Dacheng Inventor before: Li Min Inventor before: Wu Junhui Inventor before: Guan Qi |
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Effective date of registration: 20151224 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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