CN207701304U - A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy - Google Patents
A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy Download PDFInfo
- Publication number
- CN207701304U CN207701304U CN201721880457.1U CN201721880457U CN207701304U CN 207701304 U CN207701304 U CN 207701304U CN 201721880457 U CN201721880457 U CN 201721880457U CN 207701304 U CN207701304 U CN 207701304U
- Authority
- CN
- China
- Prior art keywords
- anode
- cathode
- triggerless
- arc
- vacuum arc
- 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.)
- Active
Links
Abstract
The utility model provides a kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy, solves needed for the existing vacuum arc thruster starting the arc that energy is big and power supply architecture is complicated, the big problem of size of power weight.The triggerless electrode, including anode and cathode, the anode are cylindric；The cathode is the cylindrical shape for being coaxially set in anode external；Cylindric dielectric is additionally provided between the cathode and anode, and the cathode and anode are contacted with dielectric；Layer of conductive material is coated on the surface of the dielectric exposure.The utility model uses triggerless discharge mode, increase the probability for generating flashover arc, high degree reduces the required energy of the vacuum arc thruster starting the arc, simplify power supply architecture, reduce size of power and weight, the application field for having expanded vacuum arc thruster makes vacuum arc thruster have higher application value.
Description
Technical field
The utility model belongs to vacuum arc thruster technical field, and in particular to a kind of to reduce vacuum arc thruster
The triggerless electrode of starting the arc energy, the igniting for being suitable for vacuum arc thruster start.
Background technology
Vacuum arc thruster is as a kind of novel high specific impulse, low-power, miniaturization microthrust system, more and more
It is considered as the power resources of micro-nano satellite platform.
In the traditional electrode that vacuum arc thruster uses, cathode is cylindric with anode, because the two is coaxial opposite
Setting, and between there are vacuum gaps so that the energy that the vacuum arc thruster starting the arc needs is very big, such as vacuum environment
Under, cathode is with anode at a distance of 1 millimeter of gap, and for arcing voltage up to 30 kilovolts, the power needed is up to kilowatt magnitude.Therefore,
Requirement to power supply is very high, and the structure of power supply is complex, and dimensional weight is very big, so leads to the entire of vacuum arc thruster
System is numerous and jumbled.
Utility model content
Utility model aims to solve provide a kind of vacuum arc that can reduce in place of the deficiencies in the prior art to push away
The triggerless electrode of power device starting the arc energy.
To achieve the above object, technical solution provided by the utility model is：
A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy, is characterized in that, including sun
Pole and cathode, the anode are cylindric；The cathode is the cylindrical shape for being coaxially set in anode external；The cathode and anode
Between be also coaxially arranged with cylindric dielectric, and the cathode and anode are contacted with dielectric, insulation Jie
The upper surface of matter is coated with layer of conductive material.
Further, the clearance distance between the cathode and anode is 0.1mm~2mm.
Further, the dielectric is ceramics.
Further, the conductive material is graphite, and thickness is 10 μm~800 μm.
Further, the Standard resistance range between the cathode and anode is 1 Ω~100K Ω.
Further, using gas phase membrane sedimentation by coated with graphite on ceramics.
The working principle and beneficial effect of the utility model：
The utility model uses triggerless discharge mode, by columned anode and cylindric dielectric, cylinder
The cathode of shape is coaxially radially arranged from inside to outside, and cathode is contacted with dielectric with anode, and in dielectric
It is coated with layer of conductive material on upper surface, to build electric current bridge between cathode and anode, electric current is allowed to pass through.Due to gold
The characteristic that category itself has, surface have metallic particles protrusion, when anode tap loads higher voltage, in cathode and insulation
The high spot of media contact is concentrated and generates a large amount of Joule heat, so that cathodic metal is vaporized, generate a certain amount of metallic vapour, greatly
Amplitude increases the probability for generating flashover arc, the arcing voltage and striking current of vacuum arc thruster is effectively reduced, by the starting the arc
Voltage is down to hectovolt magnitude by common kilovolt magnitude, and required power is down to a watt grade, and high degree reduces vacuum arc thrust
The required energy of the device starting the arc simplifies power supply architecture, reduces size of power and weight, while also having expanded vacuum arc thruster
Application field, so that vacuum thrust utensil is had higher application value.
Description of the drawings
Fig. 1 is the partial structural diagram of electrode in the utility model embodiment；
Fig. 2 is enlarged drawing at the A of Fig. 1.
Reference numeral is：1- cathodes；2- anodes；3- ceramics；4- graphite；5- protrusions.
Specific implementation mode
Clear, complete explanation is carried out to the utility model below in conjunction with drawings and the specific embodiments：
The triggerless electrode structure that vacuum arc thruster uses is as shown in Figures 1 and 2, makes between cathode 1 and anode 2
It is isolated with ceramics 3, by columned anode 2 and cylindric ceramics 3, cylindric cathode 1 coaxially radially by interior
Setting outward, the height of ceramics 3 are less than the height of anode 2 and cathode 1；The spy that cathode 1 has with anode 2 by metal itself
Property, surface all has metallic particles protrusion 5, which contacts with ceramic 3 surfaces, and the distance between cathode 1 and anode 2
For 0.1mm~2mm；And the upper surface of ceramics 3 is coated with one layer of graphite 4 using gas phase membrane sedimentation, 4 thickness of graphite is 10 μm
~800 μm so that the resistance value between cathode and anode is 1 Ω~100K Ω.
The graphite linings that different-thickness is coated on ceramics measure the size of energy needed for the vacuum arc thruster starting the arc, right
The utility model is verified：
Embodiment 1
(1) columned anode and cylindric ceramics, cylindric cathode are coaxially radially arranged from inside to outside,
So that the spacing distance between cathode and anode is 0.1mm~2mm；
(2) one layer of graphite is coated in ceramic upper surface in the way of the plated film of gas phase membrane deposition, vapor deposition is 20 small
When, the thickness of ceramic surface graphite linings is 100 μm；
(3) resistance value between cathode and anode is measured, resistance value is 7K Ω；
(4) high pressure is loaded to vacuum arc thruster, the arcing voltage of vacuum arc thruster is 320V, and striking current is
60A；
(5) size of power of vacuum arc thruster is 100mm*100mm*100mm.
Embodiment 2
(1) columned anode and cylindric ceramics, cylindric cathode are coaxially radially arranged from inside to outside,
So that the spacing distance between cathode and anode is 0.1mm~2mm；
(2) one layer of graphite is coated in ceramic upper surface in the way of the plated film of gas phase membrane deposition, vapor deposition is 35 small
When, the thickness of ceramic surface graphite linings is 300 μm；
(3) resistance value between cathode and anode is measured, resistance value is 2.5K Ω；
(4) high pressure is loaded to vacuum arc thruster, the arcing voltage of thruster is 300V, striking current 60A；
(5) size of power of vacuum arc thruster is 100mm*100mm*100mm.
Embodiment 3
(1) columned anode and cylindric ceramics, cylindric cathode are coaxially radially arranged from inside to outside,
So that the spacing distance between cathode and anode is 0.1mm~2mm；
(2) one layer of graphite is coated in ceramic upper surface in the way of the plated film of gas phase membrane deposition, vapor deposition is 40 small
When, the thickness of ceramic surface graphite linings is 500 μm；
(3) resistance value between cathode and anode is measured, resistance value is 1K Ω；
(4) high pressure is loaded to vacuum arc thruster, the arcing voltage of thruster is 280V, striking current 60A；
(5) size of power of vacuum arc thruster is 100mm*100mm*100mm.
Therefore, in 10 μm~800 μ ms, the thickness of equadag coating is bigger, and required starting the arc energy is with regard to smaller, using this
The arcing voltage of vacuum arc thruster can not only be substantially reduced, can also simplify power supply by the electrode designed in utility model
Structure reduces size of power and weight.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in various in technical scope disclosed by the utility model
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.
Claims (6)
1. a kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy, it is characterised in that：Including anode and the moon
Pole, the anode are cylindric；The cathode is the cylindrical shape for being coaxially set in anode external；Between the cathode and anode also
Be coaxially arranged with cylindric dielectric, and the cathode and anode are contacted with dielectric, the dielectric it is upper
Surface is coated with layer of conductive material.
2. triggerless electrode according to claim 1, it is characterised in that：Clearance distance between the cathode and anode
For 0.1mm~2mm.
3. triggerless electrode according to claim 2, it is characterised in that：The conductive material is graphite, and thickness is 10 μ
M~800 μm.
4. according to any triggerless electrodes of claim 1-3, it is characterised in that：The dielectric is ceramics.
5. triggerless electrode according to claim 4, it is characterised in that：Standard resistance range between the cathode and anode
For 1 Ω~100K Ω.
6. triggerless electrode according to claim 5, it is characterised in that：Using gas phase membrane sedimentation by coated with graphite
On ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880457.1U CN207701304U (en) | 2017-12-28 | 2017-12-28 | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880457.1U CN207701304U (en) | 2017-12-28 | 2017-12-28 | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701304U true CN207701304U (en) | 2018-08-07 |
Family
ID=63029818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721880457.1U Active CN207701304U (en) | 2017-12-28 | 2017-12-28 | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194295A (en) * | 2017-12-28 | 2018-06-22 | 西安航天动力研究所 | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy |
-
2017
- 2017-12-28 CN CN201721880457.1U patent/CN207701304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194295A (en) * | 2017-12-28 | 2018-06-22 | 西安航天动力研究所 | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5502354A (en) | Direct current energized pulse generator utilizing autogenous cyclical pulsed abnormal glow discharges | |
| CN103296579B (en) | Surface-breakdown-type vacuum switch trigger electrode | |
| WO2008102679A1 (en) | Plasma processing equipment | |
| CN106704133A (en) | Non-trigger type vacuum arc micro thruster using gas storage electrodes | |
| CN207701304U (en) | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy | |
| US3465205A (en) | Vacuum gap devices with metal ionizable species evolving trigger assemblies | |
| CN105931932B (en) | A kind of preparation method for nitrogenizing aluminum insulation layer cathode heater | |
| CN108194295A (en) | A kind of triggerless electrode that can reduce vacuum arc thruster starting the arc energy | |
| CN101604931B (en) | Alkali metal thermo-electric direct converter | |
| CN104617491B (en) | A kind of surface breakdown type two is to rod pole structure Triggered Vacuum Switch | |
| CN206592256U (en) | A kind of triggerless micro-vacuum arc propeller of use gas storage electrode | |
| US3482133A (en) | Cold cathode,glow discharge devices | |
| RU2474913C1 (en) | Gas-filled discharger and method for its manufacturing | |
| CN106998617A (en) | The device and method of large scale Atomospheric pressure glow discharge is produced based on microplasma spray gun | |
| CN201690672U (en) | Atmospheric pressure direct current arc electric discharge plasma generating device | |
| Shi et al. | Factors affecting the exploding characteristics of tungsten wires with negative-polarity current | |
| CN110012584A (en) | Pulse Vacuum arc plasma propeller with segmentation microporous insulation anode | |
| CN106654861A (en) | High-voltage gas switch electrode and preparation method thereof | |
| CN204497566U (en) | The pseudospark switch that a kind of creeping discharge triggers | |
| Xiuquan et al. | Study on the ignition process of a segmented plasma torch | |
| CN110429925A (en) | A kind of all solid state triggering isolation resistance | |
| CN103021768A (en) | High-voltage and high-current discharge switching tube | |
| RU174300U1 (en) | SIDE METAL POROUS CATHODE | |
| Gushenets et al. | Characteristics of a pulsed vacuum arc discharge with pure boron cathode | |
| CN205077138U (en) | It prevents mechanism of striking sparks to be used for shielding film forming district among semiconductor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |