CN202394750U - Durable high-voltage switch - Google Patents
Durable high-voltage switch Download PDFInfo
- Publication number
- CN202394750U CN202394750U CN2011205475899U CN201120547589U CN202394750U CN 202394750 U CN202394750 U CN 202394750U CN 2011205475899 U CN2011205475899 U CN 2011205475899U CN 201120547589 U CN201120547589 U CN 201120547589U CN 202394750 U CN202394750 U CN 202394750U
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- China
- Prior art keywords
- electrode
- voltage switch
- trigger
- main electrode
- sheet
- 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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Abstract
The utility model relates to a durable high-voltage switch, which comprises a shell, a first main electrode and a second main electrode which are arranged in the shell and a trigger electrode. The durable high-voltage switch is characterized in that the trigger electrode is a trigger sheet arranged in the shell; and the trigger sheet is arranged between the discharging end of the first main electrode and the discharging end of the second main electrode, and a discharging hole is formed in the trigger sheet. The durable high-voltage switch has the advantages that the trigger sheet of which the middle is provided with the discharging hole is used as the trigger electrode, so that a discharging ablative part is positioned at the periphery of the discharging hole, and the discharging ablative area can be increased; and the size change of relative positions between the ablated trigger sheet and the main electrodes is small, so that the service life of the high-voltage switch can be prolonged, and the operating stability of the high-voltage switch is improved.
Description
Technical field
The utility model relates to a kind of high-voltage switch gear field, specifically is a kind of durable type high-voltage switch gear.
Background technology
Existing high-voltage switch gear generally has the trigger electrode hole in the middle of first main electrode; The trigger electrode of needle-like is positioned in the trigger electrode hole; At the trigger electrode received pulse and in the second main electrode discharge process; Second main electrode can a hole occur because of ablation, and the relative position size of second main electrode and trigger electrode has just taken place to change and produced not desired electrostatic field, makes the switching characteristic variation of high-voltage switch gear.The end of trigger electrode also can be ablated simultaneously, and its ablation product can block up the aperture at full trigger electrode place, and then the trigger electrode and first main electrode will be short-circuited.
The utility model content
The utility model purpose provides a kind of durable type high-voltage switch gear, and it can make stable operating voltage, can prolong the useful life of high-voltage switch gear again.For achieving the above object; The technical scheme that the utility model adopts is: a kind of durable type high-voltage switch gear; Comprise housing, be arranged at first main electrode and second main electrode, trigger electrode in the described housing; It is characterized in that: described trigger electrode is the triggering sheet that is arranged in the described housing, and described triggering sheet is arranged between the discharge end of discharge end and second main electrode of described first main electrode, and has discharge aperture on the described triggering sheet.
The diameter of described discharge aperture is less than the diameter of said first main electrode.
The opposed end of described first electrode and second electrode is cambered surface.
Because technique scheme utilization; The utility model compared with prior art has advantage: the triggering sheet of opening discharge aperture in the middle of using is made trigger electrode; Discharge ablation position is positioned at the periphery of discharge aperture; But can increase the discharge ablated area, and the relative position change in size that trigger between sheet and main electrode the back of ablating is little, the job stability that can prolong high-voltage switch gear useful life and increase high-voltage switch gear.
Description of drawings
Accompanying drawing 1 is the main cutaway view of the utility model.
Accompanying drawing 2 is A-A cutaway view of accompanying drawing l.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2, a kind of durability high-voltage switch gear comprises housing 4, is arranged at first main electrode 1 and second main electrode 3, trigger electrode in the described housing 4.The opposed end of the described first electrode l and second electrode 3 is cambered surface.Described trigger electrode is the triggering sheet 2 that is arranged in the described housing 4; Described triggering sheet 2 is arranged between the discharge end of discharge end and second main electrode 3 of described first main electrode 1; And have discharge aperture 5 on the described triggering sheet 2, the diameter of described discharge aperture 5 is generally less than the diameter of said first main electrode 1.In the trigger electrode discharge process, the position that can ablate is the edge of discharge aperture, so its area that can ablate increase, has prolonged the useful life of high-voltage switch gear and the job stability that increases high-voltage switch gear.And trigger sheet 2 discharge ablations and radially enlarge, this just makes that the relative position change in size of asking that triggers sheet 2 and two main electrodes is less.When triggering sheet 2 and pass to pulse voltage, the potential difference between two main electrodes is owing to trigger the existence of sheet 2, reduced half thely, makes that the state between two main electrodes is more stable.And when applying trigger impulse on the triggering sheet 2, just conducting between two main electrodes.Usually vacuumize in the housing 4 or be full of inert gas, reduce to prevent that each electrode is oxidized, further prolonged the useful life of high-voltage switch gear.
Claims (3)
1. durable type high-voltage switch gear; Comprise housing (4), be arranged at first main electrode (1) and second main electrode (3), trigger electrode in the described housing (4); It is characterized in that: described trigger electrode is for being arranged at the triggering sheet (2) in the described housing (4); Described triggering sheet (2) is arranged between the discharge end of discharge end and second main electrode (3) of described first main electrode (1), and has discharge aperture (5) on the described triggering sheet (2).
2. durable type high-voltage switch gear according to claim 1 is characterized in that: the diameter of described discharge aperture (5) is less than the diameter of said first main electrode (1).
3. durable type high-voltage switch gear according to claim 1 is characterized in that: described first electrode (1) is cambered surface with the opposed end of second electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205475899U CN202394750U (en) | 2011-12-24 | 2011-12-24 | Durable high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205475899U CN202394750U (en) | 2011-12-24 | 2011-12-24 | Durable high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394750U true CN202394750U (en) | 2012-08-22 |
Family
ID=46669657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205475899U Expired - Fee Related CN202394750U (en) | 2011-12-24 | 2011-12-24 | Durable high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617489A (en) * | 2015-01-16 | 2015-05-13 | 西安交通大学 | Ultraviolet preionization track switch with tool edge and trigger circuit of track switch |
-
2011
- 2011-12-24 CN CN2011205475899U patent/CN202394750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617489A (en) * | 2015-01-16 | 2015-05-13 | 西安交通大学 | Ultraviolet preionization track switch with tool edge and trigger circuit of track switch |
| CN104617489B (en) * | 2015-01-16 | 2017-01-04 | 西安交通大学 | Track switch with edge of a knife ultraviolet preionization and triggering circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20181224 |