CN204204733U - Vacuum interrupter electric arc even distribution type electrode structure - Google Patents
Vacuum interrupter electric arc even distribution type electrode structure Download PDFInfo
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- CN204204733U CN204204733U CN201420383372.2U CN201420383372U CN204204733U CN 204204733 U CN204204733 U CN 204204733U CN 201420383372 U CN201420383372 U CN 201420383372U CN 204204733 U CN204204733 U CN 204204733U
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- cup
- supporting disk
- pallet
- welded
- vacuum interrupter
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- 238000010891 electric arc Methods 0.000 title claims abstract description 13
- 230000035699 permeability Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 230000008961 swelling Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a kind of vacuum interrupter electric arc even distribution type electrode structure, comprise cup, cup bottom surface is welded with conducting rod, along being welded with pallet on cup, pallet is welded with contact blade, and described cup sidewall is provided with many helicla flutes, described pallet with contact blade is equipped with the radial slot corresponding with described helicla flute position, be provided with ring-type high permeability material supporting disk in described cup, supporting disk is provided with endless groove, and supporting disk surface is welded with described pallet.The beneficial effects of the utility model are: effectively can suppress the eddy current produced by alternating current, obvious enhancing is to the magnetic control ability of vacuum arc, make arc energy at whole electrode surface homogenous combustion, electrode effective rate of utilization is high, the short circuit interruption ability of vacuum interrupter can be significantly improved, simultaneously pallet the anti-pumping performance significantly improving vacuum interrupter is set; Production technology is simple, and cost is low.
Description
Technical field
The utility model relates to a kind of vacuum interrupter electric arc even distribution type electrode structure.
Background technology
Existing vacuum interrupter electrode mainly contains two kinds, and one is cup-shaped structure of contact terminal, and its structure is simple, be easy to produce, owing to being subject to the restriction of cup helicla flute inclination angle and the notch tangentially anglec of rotation, the longitudinal magnetic field intensity of generation is more weak, and electric arc is subject to the interference of outer bus electromagnetic force.Under the effect of electromagnetic force outside, electric arc is easily pushed to the side burning of electrode, thus causes arc column to be assembled to a direction, and formation anode spot, causes failure of interruption.In addition, its contact surface utilance is low, is only the 60-70% that contact surface is long-pending, and also have one to be coil type longitudinal field contact structure, substantially can meet the requirement of diffuse arc to longitudinal magnetic field, during arcing, arc voltage is lower, and connecting-disconnecting function is strong.But due to the restriction by himself car wheel-like structure, have that complex structure, conductive path path length, structural strength are poor, rated current leads to the deficiencies such as loading capability is low, therefore higher in High Capacity Vacuum Interrupter electrode field temperature rise limits its effective application, and contact face utilance is about 80%.
To this, CN2733566Y discloses " a kind of vacuum interrupter electric arc even distribution type electrode structure ", adopts the supporting disk made of non-magnet material, and the structure of the increasing magnetic post made at the uniform multiple high permeability material in supporting disk surface solves the problems referred to above.But in actual production process, because the increasing magnetic post number producing a desired effect required is more, cause difficulty of processing large, assembling difficulty, cost is high, is unfavorable for mass production.
Utility model content
The purpose of this utility model is to provide a kind of vacuum interrupter electric arc even distribution type electrode structure, solves existing product processing and assembling difficulty, the problem that production cost is high.
The purpose of this utility model is achieved through the following technical solutions:
A kind of vacuum interrupter electric arc even distribution type electrode structure, comprise cup, cup bottom surface is welded with conducting rod, along being welded with pallet on cup, pallet is welded with contact blade, and described cup sidewall is provided with many helicla flutes, described pallet with contact blade is equipped with the radial slot corresponding with described helicla flute position, be provided with ring-type high permeability material supporting disk in described cup, supporting disk is provided with endless groove, and supporting disk surface is welded with described pallet.
Further, described supporting disk is provided with the groove of a longitudinal direction.
Further, the inner ring of described supporting disk is positioned at cup central authorities, and leave gap between the outer shroud of supporting disk and described cup inwall, gap width is less than or equal to 0.5mm.
Preferably, described spiral fluted quantity is 4.
Preferably, the described spiral fluted anglec of rotation is 110 ° ~ 150 °.
Preferably, the angle between described helicla flute side and cup end face is 12 ° ~ 30 °.
The beneficial effects of the utility model are: effectively can suppress the eddy current produced by alternating current, obvious enhancing is to the magnetic control ability of vacuum arc, make arc energy at whole electrode surface homogenous combustion, electrode effective rate of utilization is high, can significantly improve the short circuit interruption ability of vacuum interrupter.Simultaneously pallet the anti-pumping performance significantly improving vacuum interrupter is set; Production technology is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the profile of cup;
Fig. 3 is the vertical view of cup;
Fig. 4 is the vertical view of contact blade;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the vertical view of pallet;
Fig. 7 is the vertical view of supporting disk.
In figure:
1, cup; 2, contact blade; 3, pallet; 4, supporting disk; 5, conducting rod; 6, helicla flute; 7, radial slot.
Embodiment
With reference to the accompanying drawings the utility model is described in further detail below.
As shown in Figure 1, vacuum interrupter electric arc even distribution type electrode structure described in the utility model, comprise cup 1, cup 1 bottom surface is welded with conducting rod 5, along being welded with pallet 3 on cup 1, pallet 3 is welded with contact blade 2, its special character is, described cup 1 sidewall is provided with 4 helicla flutes, and the described spiral fluted anglec of rotation is 120 °, and the angle between helicla flute side and cup 1 end face is 18 °.Described pallet 3 with contact blade 2 is equipped with the radial slot 7 corresponding with described helicla flute position, ring-type high permeability material supporting disk 4 is provided with in described cup 1, supporting disk 4 is provided with the groove of endless groove and a longitudinal direction, the inner ring of supporting disk 4 is positioned at cup 1 central authorities, gap is left between the outer shroud of supporting disk 4 and described cup 1 inwall, gap width 0.5mm, supporting disk 4 surface is welded with described pallet 3.
During concrete use, leave gap between the outer shroud of supporting disk 4 and described cup 1 inwall, play a part to strengthen magnetic field, supporting disk 4 inner ring is positioned at cup central authorities, plays a supportive role to contact; The anglec of rotation of the helicla flute 6 of cup 1 is 120 °, and with the circulation path of swelling current, improve the intensity of longitudinal magnetic field when current peak, the angle between cup 1 end face and helicla flute 6 side is 18 °, with the circulation path of further swelling current.Be provided with longitudinal groove due to supporting disk 4 and for high-impedance state, effectively can suppress the eddy current produced by alternating current.Improve the magnetic field of contact edges by supporting disk 4 outer shroud, thus obtain the longitudinal magnetic field of a radially crescendo in contact surface.Under the effect of high-intensity magnetic field, the magnetic control ability of electrode pair vacuum arc obtains obvious enhancing, electric arc is efficiently controlled in contact gap combustion, expand the effective area of contact blade, improve the electric current distribution of contact surface, thus reducing arc voltage and arc energy, the connecting-disconnecting function of vacuum interrupter is significantly improved, and electrode effective rate of utilization can more than 95%.
Under the prerequisite producing identical technique effect, the anglec of rotation that the shape of the utility model supporting disk 4 and cup 1 helicla flute 6 are selected etc. are easier to processing relative to existing product, and low production cost, is convenient to boost productivity, and produce in enormous quantities.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection range of the present utility model.
Claims (2)
1. a vacuum interrupter electric arc even distribution type electrode structure, comprise cup, cup bottom surface is welded with conducting rod, along being welded with pallet on cup, pallet is welded with contact blade, described cup sidewall is provided with many helicla flutes, described pallet with contact blade is equipped with the radial slot corresponding with described helicla flute position, described supporting disk is provided with the groove of a longitudinal direction, it is characterized in that: in described cup, be provided with ring-type high permeability material supporting disk, supporting disk is provided with endless groove, and supporting disk surface is welded with described pallet.
2. vacuum interrupter electric arc even distribution type electrode structure according to claim 1, it is characterized in that: the inner ring of described supporting disk is positioned at cup central authorities, leave gap between the outer shroud of supporting disk and the inwall of described cup, gap width is less than or equal to 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383372.2U CN204204733U (en) | 2014-07-12 | 2014-07-12 | Vacuum interrupter electric arc even distribution type electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383372.2U CN204204733U (en) | 2014-07-12 | 2014-07-12 | Vacuum interrupter electric arc even distribution type electrode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204733U true CN204204733U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420383372.2U Active CN204204733U (en) | 2014-07-12 | 2014-07-12 | Vacuum interrupter electric arc even distribution type electrode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614738A (en) * | 2020-12-14 | 2021-04-06 | 华中科技大学 | Vacuum arc-extinguishing chamber longitudinal magnetic contact based on ferromagnetic material |
-
2014
- 2014-07-12 CN CN201420383372.2U patent/CN204204733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614738A (en) * | 2020-12-14 | 2021-04-06 | 华中科技大学 | Vacuum arc-extinguishing chamber longitudinal magnetic contact based on ferromagnetic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |