CN106714536A - Plasma shielding protection method of electric thruster power supply line in vacuum chamber - Google Patents
Plasma shielding protection method of electric thruster power supply line in vacuum chamber Download PDFInfo
- Publication number
- CN106714536A CN106714536A CN201611117616.2A CN201611117616A CN106714536A CN 106714536 A CN106714536 A CN 106714536A CN 201611117616 A CN201611117616 A CN 201611117616A CN 106714536 A CN106714536 A CN 106714536A
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- China
- Prior art keywords
- supply line
- plasma
- vacuum chamber
- power supply
- electric
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- 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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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0018—Casings with provisions to reduce aperture leakages in walls, e.g. terminals, connectors, cables
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a plasma shielding protection method of an electric thruster power supply line in a vacuum chamber. The plasma shielding protection method comprises steps that (1) shielding protection of a flange plate opening of a binding post in the chamber is carried out; (2) a power supply cable in the chamber is wrapped; (3) wrapping protection of an electric connector is carried out; (4) small holes having diameters in a range from 0.5 to 1mm are disposed in a shielding wrapping layer on the opening part of the flange plate and an electric connector wrapping layer, and the number of the small holes is not less than 1/cm3. The electric thruster power supply line in the vacuum chamber is protected by using non-adhesive metal foil, polyimide adhesive tapes, and other materials, and an object of shielding the plasma is achieved. The plasma shielding protection method is advantageous in that the safety performance and the reliability of the power supply line in the narrow space of the chamber are obviously improved, and the short circuit condition of the flange part and the electric connector in the chamber caused by the entrance of the plasma is eliminated, and therefore the service lifetime of the electric connector is prolonged, and the normal power supply of the electric thruster is guaranteed.
Description
Technical field
The invention belongs to electric thruster supply line technical field, and in particular to a kind of electric thruster supply line is in vacuum
Plasma shield guard method in cabin.
Background technology
To electric thruster supply line in vacuum chamber part, such as do not carry out shielding protection, although generally also can
Meet thruster power reguirements, but potential safety hazard is caused to whole thruster electric power system.Thruster in the normal mode of operation,
Substantial amounts of plasma can be produced in narrow and small vacuum chamber, with the aggregation that increases of plasma, form plasma cloud cluster,
When these plasmas enter cabin inner flange junction or electrical connector interior, a kind of conducting medium can be turned into, so as to occur short
The situation on road.Other ion sputtering can cause to damage to power cable in cabin, while ion can also be attached to cabin inner flange wiring
Terminal surfaces, so as to influence the electric conductivity of binding post, if implementing this kind of shielding protection, can greatly prolong cable and terminals
The service life of son, excludes potential risk, effectively reduces experimentation cost.
The content of the invention
The technical problems to be solved by the invention are directed to shortcoming of the prior art and provide a kind of electric thruster and power
Plasma shield guard method of the circuit in vacuum chamber, with solve cabin inner flange, electric connector and power cable short circuit and
The shortcomings of damage.
Adopted the following technical scheme that to solve technical problem of the invention：
A kind of plasma shield guard method of electric thruster supply line in vacuum chamber, comprises the following steps：
(1) shielding protection will be carried out at the flange dish opening of cabin internal wiring terminal；
(2) power cable in cabin is wrapped up；
(3) electric connector is implemented into parcel protection；
(4) aperture that 0.5-1mm is opened on clad and electric connector clad, the quantity of aperture are shielded at flange dish opening
It is not less than 1/cm3。
The step（1）It is middle that region at the internal wiring terminal flange dish opening of cabin is covered with without glue metal foil, together
When it is fixed with Kapton Tape.
The step（2）It is middle power cable in cabin is wrapped up with without glue metal foil, it is ensured that cable surface and without
The tight attaching of glue metal foil.
The step（3）It is middle electric connector is protected with without glue metal foil, prevent plasma from entering inside it
The phenomenon being short-circuited.
Compared with the prior art, the invention has the advantages that：（1）The present invention it is unique compared with other congenic methods and
Practicality；（2）After the present invention, ion without being adhered to flange binding post surface, it is to avoid the electric conductivity of pair of wire connection terminals
Have undesirable effect, while eliminating plasma accumulates in the short-circuit conditions occurred between each binding post；（3）Using this
After invention, protect power cable from because of ion sputtering and caused by damage, it is to avoid the generation of short-circuit conditions；（4）Using this
After invention, block plasma and enter electrical connector interior, it is to avoid the problem of short circuit, extend the use longevity of electric connector
Life.
The present invention by electric thruster supply line in vacuum chamber, using without materials such as glue metal foil, Kapton Tapes
Protected, reached the purpose of shielding plasma.This method significantly improves the security of Cang Nei small spaces supply line
With reliability, eliminate at the inner flange of cabin and electric connector because plasma enter and caused by short-circuit conditions, extend and be electrically connected
Connect the service life of device, it is ensured that the normal power supply of electric thruster.
Specific embodiment
The present invention is described in further detail below：
A kind of plasma shield guard method of electric thruster supply line in vacuum chamber, comprises the following steps：
(1) region at the flange dish opening of cabin internal wiring terminal is carried out into covering shielding protection with without glue metal foil, while with
Kapton Tape is fixed.
(2) power cable in cabin is wrapped up with without glue metal foil, it is ensured that power cable surface and without glue metal
The tight attaching of paper tinsel.
(3) electric connector is protected with without glue metal foil, prevents plasma from entering its short circuit occurred inside
Phenomenon.
(4) aperture that 0.5-1mm is opened on clad and electric connector clad is shielded at flange dish opening, aperture
Quantity is not less than 1/cm3.Because electric thruster is used as a kind of vacuum device, it is necessary under vacuum conditions just can normal work.
When parcel operation is implemented, vacuum chamber exposes in an atmosphere, then just has gas in integument at two, in order to allow the gas can
During vacuum chamber is vacuumized, timely and effectively release out it is necessary to perforate and to ensure certain density, to reach
The vacuum environment of test requirements document.
The present invention is used in LIPS-300 thruster performance tests, to vacuum chamber inner flange, power cable and electric connector
Many wheel performance tests have been carried out after carrying out shielding protection.All properties experiment demonstrate guard method of the present invention be it is effective,
So as to eliminate a series of problems for protection being not carried out and bringing.Such as, shielding protection is not carried out at flange dish opening, on the one hand
Plasma in vacuum chamber can be attached on binding post, and the electric conductivity of binding post will be influenceed in the course of time until cannot
Normally use, another aspect plasma is gathered at flange binding post, the phenomenon being easily short-circuited.
Claims (4)
1. plasma shield guard method of a kind of electric thruster supply line in vacuum chamber, it is characterised in that including following
Step：
(1) shielding protection will be carried out at the flange dish opening of cabin internal wiring terminal；
(2) power cable in cabin is wrapped up；
(3) electric connector is implemented into parcel protection；
(4) aperture that 0.5-1mm is opened on clad and electric connector clad, the quantity of aperture are shielded at flange dish opening
It is not less than 1/cm3。
2. plasma shield protection side of a kind of electric thruster supply line according to claim 1 in vacuum chamber
Method, it is characterised in that：The step（1）It is middle that region at the flange dish opening of cabin internal wiring terminal is carried out with without glue metal foil
Covering, while fixed with Kapton Tape.
3. plasma shield protection of a kind of electric thruster supply line according to claim 1 and 2 in vacuum chamber
Method, it is characterised in that：The step（2）It is middle power cable in cabin is wrapped up with without glue metal foil, it is ensured that cable table
Face and the tight attaching without glue metal foil.
4. plasma shield protection side of a kind of electric thruster supply line according to claim 3 in vacuum chamber
Method, it is characterised in that：The step（3）It is middle electric connector is protected with without glue metal foil, prevent plasma from entering
The phenomenon of its short circuit occurred inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117616.2A CN106714536A (en) | 2016-12-07 | 2016-12-07 | Plasma shielding protection method of electric thruster power supply line in vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117616.2A CN106714536A (en) | 2016-12-07 | 2016-12-07 | Plasma shielding protection method of electric thruster power supply line in vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106714536A true CN106714536A (en) | 2017-05-24 |
Family
ID=58936278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611117616.2A Pending CN106714536A (en) | 2016-12-07 | 2016-12-07 | Plasma shielding protection method of electric thruster power supply line in vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106714536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005849A (en) * | 2019-11-28 | 2020-04-14 | 兰州空间技术物理研究所 | Plasma sealing structure of discharge chamber of annular magnetic steel circular cutting field ion thruster |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2767444A3 (en) * | 1997-02-04 | 1999-02-19 | Hsing Chau Ind Co Ltd | Electrical shielding metal housing e.g. for computer signal transmission device |
| CN1550061A (en) * | 2001-08-30 | 2004-11-24 | Electrical machines for navy vessels based on superconducting technology, | |
| CN102074924A (en) * | 2009-11-24 | 2011-05-25 | 刘新月 | Broken cable sealing device |
| CN102694299A (en) * | 2012-06-11 | 2012-09-26 | 上海航天科工电器研究院有限公司 | Metal wire clip of tail end fixing cable |
| CN202711793U (en) * | 2012-07-16 | 2013-01-30 | 艾恩特精密工业股份有限公司 | Shielding cable structure and combination thereof |
| CN105071142A (en) * | 2015-07-28 | 2015-11-18 | 株洲南车时代电气股份有限公司 | Cabinet capable of electromagnetic shielding |
| CN106286180A (en) * | 2016-10-17 | 2017-01-04 | 哈尔滨工业大学 | The magnetic field shielding case of cusped magnetic field thruster |
-
2016
- 2016-12-07 CN CN201611117616.2A patent/CN106714536A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2767444A3 (en) * | 1997-02-04 | 1999-02-19 | Hsing Chau Ind Co Ltd | Electrical shielding metal housing e.g. for computer signal transmission device |
| CN1550061A (en) * | 2001-08-30 | 2004-11-24 | Electrical machines for navy vessels based on superconducting technology, | |
| CN102074924A (en) * | 2009-11-24 | 2011-05-25 | 刘新月 | Broken cable sealing device |
| CN102694299A (en) * | 2012-06-11 | 2012-09-26 | 上海航天科工电器研究院有限公司 | Metal wire clip of tail end fixing cable |
| CN202711793U (en) * | 2012-07-16 | 2013-01-30 | 艾恩特精密工业股份有限公司 | Shielding cable structure and combination thereof |
| CN105071142A (en) * | 2015-07-28 | 2015-11-18 | 株洲南车时代电气股份有限公司 | Cabinet capable of electromagnetic shielding |
| CN106286180A (en) * | 2016-10-17 | 2017-01-04 | 哈尔滨工业大学 | The magnetic field shielding case of cusped magnetic field thruster |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005849A (en) * | 2019-11-28 | 2020-04-14 | 兰州空间技术物理研究所 | Plasma sealing structure of discharge chamber of annular magnetic steel circular cutting field ion thruster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |