CN205159201U - A contact for vacuum interrupter - Google Patents
A contact for vacuum interrupter Download PDFInfo
- Publication number
- CN205159201U CN205159201U CN201521022491.6U CN201521022491U CN205159201U CN 205159201 U CN205159201 U CN 205159201U CN 201521022491 U CN201521022491 U CN 201521022491U CN 205159201 U CN205159201 U CN 205159201U
- Authority
- CN
- China
- Prior art keywords
- contact
- contact blade
- connecting lever
- vacuum interrupter
- fastener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a contact for vacuum interrupter, including contact blade, turning arm, current -guiding ring, cylindrical conducting rod and fixing bolt, current -guiding ring cover on the turning arm and fixed, all set up a plurality of fasteners at the upper surface of current -guiding ring and turning arm, the contact blade is half spherical structure, sets up a plurality of bayonet sockets that mate with the fastener in the bottom of contact blade, and the fastener makes the contact blade be connected with turning arm and current -guiding ring in inserting the bayonet socket, the centre of conducting rod top surface still set up the recess, in the turning arm inserted the recess, the recess was crossed and the turning arm that is located the recess to the fixing bolt level, still wraps up the one deck iron core in the outside of contact blade. By adopting the above structure, the utility model, increase longitudinal [magnetic] field's intensity, kept vacuum arc to be in the diffused state under the heavy current to improve vacuum interrupter's the ability of cut -offfing, firm in connection between each part of this contact separates the convenience, is difficult for after the connection droing, can realize changing a single part, has reduced use cost.
Description
Technical field
The utility model relates to power domain, particularly, relates to the contact for vacuum interrupter.
Background technology
Vacuum circuit-breaker is exactly utilize vacuum as insulation and the circuit breaker of arc extinguishing means.Vacuum circuit-breaker has that mechanical endurance is long, size is little, lightweight, without calamity danger, be used at first and often need the place of operation and the place of requirement of explosion proof, vacuum switch also develops thereupon, in occupation of critical role in high-voltage fence.And in vacuum switch, need to use vacuum interrupter, the quality of vacuum interrupter depends on the connecting-disconnecting function of vacuum interrupter, and longitudinal magnetic field can keep vacuum arc to be in diffused state under big current, thus greatly improve the connecting-disconnecting function of vacuum interrupter, and the size of longitudinal magnetic field is subject to the impact of contact, and existing contact all can not reach the size better improving longitudinal magnetic field, reduce the connecting-disconnecting function of vacuum interrupter.In addition, in use, each parts easily come off existing contact, go wrong and can not change separately, can only change whole contact, improve use cost between each parts of contact.
Utility model content
Technical problem to be solved in the utility model is to provide the contact for vacuum interrupter, this contact increases the intensity of longitudinal magnetic field, under big current, keep vacuum arc to be in diffused state, improve the connecting-disconnecting function of vacuum interrupter, be connected firmly between each parts of this contact, convenient separation, difficult drop-off after connecting, can realize changing single parts, reduce working service cost.
The technical scheme in the invention for solving the above technical problem is: for the contact of vacuum interrupter, comprise contact blade, connecting lever, draining ring, cylindrical conductive bar and set bolt, described draining ring is enclosed within connecting lever also fixing, all arranges multiple fastener at the upper surface of draining ring and connecting lever; Described contact blade is hemispherical dome structure, arranges multiple bayonet socket mated with fastener in the bottom of contact blade, and fastener inserts in bayonet socket and contact blade is connected with connecting lever and draining ring; The centre of described conducting rod end face also arranges groove, and connecting lever inserts in groove, and set bolt level is crossed groove and is positioned at the connecting lever of groove, also wraps up one deck iron core in the outside of contact blade.Contact blade and fixing between connecting lever and draining ring by fastener and bayonet socket with the use of fixation, need only fastener to be departed from bayonet socket, convenient separation when being separated; And connecting lever is stuck in the groove on conducting rod, and fix with set bolt, fixation, be separated quick and convenient, only can change broken parts if each parts are damaged, reduce working service cost.When two contact subtend distributions, the electric current of a contact is after conducting rod inflow, through connecting lever, contact blade is led to by the iron core on contact blade through draining ring, another is then with it first flow into from contact in 180 ° of relative contacts, successively through iron core, draining ring and connecting lever, flow out finally by conducting rod.Electric current in upper and lower connecting lever flows to same direction, the magnetic flux that they produce passes perpendicularly through the space of two contact blades, produce longitudinal magnetic field, and the existence of iron core, can just magnetic field concentration in the gap between iron core and two contact blades, and contact blade is designed to hemispherical dome structure, increase the surface area of contact blade, and iron core is wrapped on contact blade outer wall, thus increase magnetic flux, produce stronger longitudinal magnetic field, under big current, keep vacuum arc to be in diffused state, thus greatly improve the connecting-disconnecting function of vacuum interrupter.
Described contact blade is chromaking copper contact sheet.This contact blade Chopping Current is low, and this contact is arranged in vacuum short-circuiting device can avoid it to occur higher overvoltage when cutting off no-load transformer loop.
The diameter of described contact blade is greater than the diameter of draining ring.Under guarantee draining ring realizes the prerequisite of drainage preferably, increase the diameter of contact blade to greatest extent, to reach the ability strengthening longitudinal magnetic field.
The width of described connecting lever is 1/3 of conducting rod diameter.The diameter reducing connecting lever, in order to ensure larger core area as far as possible, strengthens longitudinal magnetic field from another aspect.
Multiple fasteners on described draining ring form an equilateral triangle, and multiple fastener lays respectively on leg-of-mutton three angles.According to leg-of-mutton stability, improve draining ring and be connected with the stable of contact blade.
Described connecting lever is L-type structure, and fastener is positioned at the middle at connecting lever top.The direction in magnetic field is contrary in connecting lever both sides, and ensures that connecting lever is stablized with contact blade and be connected.
To sum up, the beneficial effects of the utility model are:
1, this contact increases the intensity of longitudinal magnetic field, under big current, keep vacuum arc to be in diffused state, thus improve the connecting-disconnecting function of vacuum interrupter, be connected firmly between each parts of this contact, convenient separation, difficult drop-off after connecting, can realize changing single parts, reduce working service cost.
2, the diameter of contact blade is greater than the diameter of draining ring, under guarantee draining ring realizes the prerequisite of drainage preferably, increases the diameter of contact blade to greatest extent, to reach the ability strengthening longitudinal magnetic field.
3, the multiple fasteners on draining ring form an equilateral triangle, according to leg-of-mutton stability, improve draining ring and are connected with the stable of contact blade.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing: 1, contact blade; 2, connecting lever; 3, draining ring; 4, conducting rod; 5, set bolt; 6, groove; 7, fastener; 8, bayonet socket; 9, iron core.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but execution mode of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, the utility model comprises contact blade 1, connecting lever 2, draining ring 3, cylindrical conductive bar 4 and set bolt 5, and described draining ring 3 is enclosed within connecting lever 2 also fixing, all arranges multiple fastener 7 at the upper surface of draining ring 3 and connecting lever 2; Described contact blade 1 is semicircular structure, arranges multiple bayonet socket 8 mated with fastener 7 in the bottom of contact blade 1, and fastener 7 inserts in bayonet socket 8 and contact blade 1 is connected with connecting lever 2 and draining ring 3; The centre of described conducting rod 4 end face also arranges groove 6, and connecting lever 2 inserts in groove 6, and set bolt 5 level is crossed groove 6 and is positioned at the connecting lever 2 of groove 6, also wraps up one deck iron core 9 in the outside of contact blade 1.
Contact blade and fixing between connecting lever and draining ring by fastener and bayonet socket with the use of fixation, need only fastener to be departed from bayonet socket, convenient separation when being separated; And connecting lever is stuck in the groove on conducting rod, and fix with set bolt, fixation, be separated quick and convenient, only can change broken parts if each parts are damaged, reduce use cost.When two contact subtend distributions, the electric current of a contact is after conducting rod inflow, through connecting lever, contact blade is led to by the iron core on contact blade through draining ring, another is then with it first flow into from contact in 180 ° of relative contacts, successively through iron core, draining ring and connecting lever, flow out finally by conducting rod.Electric current in upper and lower connecting lever flows to same direction, the magnetic flux that they produce passes perpendicularly through the space of two contact blades, produce longitudinal magnetic field, and the existence of iron core, can just magnetic field concentration in the gap between iron core and two contact blades, and contact blade is designed to hemispherical dome structure, increase the surface area of contact blade, and iron core is wrapped on contact blade outer wall, thus increase magnetic flux, produce stronger longitudinal magnetic field, under big current, keep vacuum arc to be in diffused state, thus improve the connecting-disconnecting function of vacuum interrupter.
Embodiment 2:
The present embodiment preferred concrete structure on the basis of embodiment 1 is as follows: contact blade 1 is chromaking copper contact sheet.This contact blade Chopping Current is low, and this contact is arranged in vacuum short-circuiting device can avoid it to occur higher overvoltage when cutting off no-load transformer loop.
Embodiment 3:
The present embodiment preferred concrete structure on the basis of above-described embodiment is as follows: the diameter of contact blade 1 is greater than the diameter of draining ring 3.Under guarantee draining ring realizes the prerequisite of drainage preferably, increase the diameter of contact blade to greatest extent, to reach the ability strengthening longitudinal magnetic field.
The width of connecting lever 2 is 1/3 of conducting rod 4 diameter.The diameter reducing connecting lever, in order to ensure larger core area as far as possible, strengthens longitudinal magnetic field from another aspect.
Multiple fasteners 7 on draining ring 3 form an equilateral triangle, and multiple fastener 7 lays respectively on leg-of-mutton three angles.According to leg-of-mutton stability, improve draining ring and be connected with the stable of contact blade.
Connecting lever 2 is L-type structure, and fastener 7 is positioned at the middle at connecting lever 2 top.
As mentioned above, the utility model can be realized preferably.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection range of the present utility model.
Claims (6)
1. for the contact of vacuum interrupter, it is characterized in that, comprise contact blade (1), connecting lever (2), draining ring (3), cylindrical conductive bar (4) and set bolt (5), described draining ring (3) is enclosed within connecting lever (2) and goes up and fix, and all arranges multiple fastener (7) at the upper surface of draining ring (3) and connecting lever (2); Described contact blade (1) is hemispherical dome structure, arrange multiple bayonet socket (8) mated with fastener (7) in the bottom of contact blade (1), fastener (7) inserts in bayonet socket (8) and contact blade (1) is connected with connecting lever (2) and draining ring (3); The centre of described conducting rod (4) end face also arranges groove (6), connecting lever (2) inserts in groove (6), set bolt (5) level is crossed groove (6) and is positioned at the connecting lever (2) of groove (6), also wraps up one deck iron core (9) in the outside of contact blade (1).
2. the contact for vacuum interrupter according to claim 1, is characterized in that, described contact blade (1) is chromaking copper contact sheet.
3. the contact for vacuum interrupter according to claim 1 and 2, is characterized in that, the diameter of described contact blade (1) is greater than the diameter of draining ring (3).
4. the contact for vacuum interrupter according to claim 1, is characterized in that, the width of described connecting lever (2) is 1/3 of conducting rod (4) diameter.
5. the contact for vacuum interrupter according to claim 1, is characterized in that, the multiple fasteners (7) on described draining ring (3) form an equilateral triangle, and multiple fastener (7) lays respectively on leg-of-mutton three angles.
6. the contact for vacuum interrupter according to claim 1, is characterized in that, described connecting lever (2) is L-type structure, and fastener (7) is positioned at the middle at connecting lever (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022491.6U CN205159201U (en) | 2015-12-10 | 2015-12-10 | A contact for vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521022491.6U CN205159201U (en) | 2015-12-10 | 2015-12-10 | A contact for vacuum interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159201U true CN205159201U (en) | 2016-04-13 |
Family
ID=55694865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521022491.6U Active CN205159201U (en) | 2015-12-10 | 2015-12-10 | A contact for vacuum interrupter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192777A (en) * | 2020-01-21 | 2020-05-22 | 上海电机学院 | Anti-arc contact |
-
2015
- 2015-12-10 CN CN201521022491.6U patent/CN205159201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192777A (en) * | 2020-01-21 | 2020-05-22 | 上海电机学院 | Anti-arc contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |