CN106321389A - Hollowed-out magnetic shield structure for hall thruster - Google Patents
Hollowed-out magnetic shield structure for hall thruster Download PDFInfo
- Publication number
- CN106321389A CN106321389A CN201610832003.0A CN201610832003A CN106321389A CN 106321389 A CN106321389 A CN 106321389A CN 201610832003 A CN201610832003 A CN 201610832003A CN 106321389 A CN106321389 A CN 106321389A
- Authority
- CN
- China
- Prior art keywords
- magnetic cup
- hollow out
- hall thruster
- magnetic shield
- base plate
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0037—Electrostatic ion thrusters
- F03H1/0062—Electrostatic ion thrusters grid-less with an applied magnetic field
- F03H1/0075—Electrostatic ion thrusters grid-less with an applied magnetic field with an annular channel; Hall-effect thrusters with closed electron drift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0081—Electromagnetic plasma thrusters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/02—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a hollowed-out magnetic shield structure for a hall thruster and belongs to the field of hall thrusters. The hollowed-out magnetic shield structure aims at solving the problems that an existing hall thruster is poor in heat dissipation performance, and the performance and working stability of the thruster are lowered. The hollowed-out magnetic shield structure comprises an inner magnetic shield, an outer magnetic shield and a bottom plate. The inner magnetic shield and the outer magnetic shield are of two cylindrical structures which are arranged in an inner-outer nested manner. A radial gap is formed between the inner magnetic shield and the outer magnetic shield. The inner magnetic shield and the outer magnetic shield are both fixed to the upper circular surface of the bottom plate. The circle center of the inner magnetic shield and the circle center of the outer magnetic shield coincide with the circle center of the bottom plate. N rectangular hollowed-out heat dissipation holes are evenly distributed in the wall face of the outer magnetic shield in the peripheral direction, the length extension direction of the rectangular hollowed-out heat dissipation holes is axial, and n is larger than or equal to 20.
Description
Technical field
The invention belongs to hall thruster field.
Background technology
Hall thruster is current widely used electric propulsion device, compares with traditional chemical propulsion plant, has
Efficiency is high, than the advantage such as leap high and the life-span is long.Its operation principle is: there is mutually orthogonal radial direction in hall thruster passage
Magnetic field and axial electric field, from emission of cathode to passage in the electronics effect by magnetic field and electric field under drift about to anode, with from
The Working medium gas of gas distributor ejection collides ionization, and the electronics ionized out is little due to quality, is constrained in by radial magnetic field
In passage, and mass of ion is big, and magnetic field is substantially inoperative to it, and the effect in axial electric field power accelerates spray to channel outlet
Go out, thus produce thrust.
The initial magnetic cup of hall thruster is solid magnetic cup, as it is shown on figure 3, the heat that this hall thruster is in the course of the work
Amount source mainly is made up of two parts, a part be ion under electric field force effect to exporting during accelerated motion, do not have
Outside ejection passage, but being splashed on wall, ion energy is converted into heat；Another part is that electronics is by electric field and magnetic field
Act on and drifting about to anode, the heat that electronics produces with anode compound tense.
This two parts heat makes the wall surface temperature of pottery passage higher, simultaneously carries out conduction of heat and heat to magnetic circuit and coil
Radiation, causes the temperature drift of magnetic circuit and coil, and coil temperature is higher can accelerating coil insulated hull be aging even burns out
Phenomenon, magnetic circuit temperature drift can make pcrmeability decline rapidly, both common effects can change thruster magnetic field bit-type and
Magnetic field intensity, and then reduce performance and the job stability of thruster.
In order to lower the temperature, the structure of hall thruster is improved by people, have employed the magnetic cup of macropore engraved structure, such as figure
Shown in 4, although serve certain cooling effect, but bring new problem therewith, use the hall thruster of solid magnetic cup,
Its pottery passage internal magnetic field axial distribution figure (starting point is pottery channel bottom) shown in solid as shown in Figure 5, at different angles
Spend its curve the most unchanged.The hall thruster using the magnetic cup of the macropore engraved structure shown in Fig. 4 is the most different, its pottery
Passage internal magnetic field axial distribution can change in different angles, the magnetic in the case of 0 degree of angle that Fig. 5 is given and two kinds of 45 degree of angles
Field axial distribution, it is seen then that the change of magnetic field strength trend produced with solid magnetic cup in 45 degree of angle direction magnetic fields has notable difference,
Week is poor to property.
Summary of the invention
The invention aims to solve existing hall thruster poor radiation, reduce performance and the working stability of thruster
Sex chromosome mosaicism, it is provided that the hollow out magnetic cup structure of a kind of hall thruster.
The hollow out magnetic cup structure of hall thruster of the present invention includes interior magnetic cup, outer magnetic cup and base plate；Interior magnetic cup is with outer
Magnetic cup is that inside and outside nested two are columnar structured, has therebetween radial gap, and both is fixed on the upper round table of base plate
Face, interior magnetic cup, the center of circle of outer magnetic cup overlap with the center of circle of base plate；The wall of outer magnetic cup has been uniformly distributed circumferentially n rectangle and has engraved
Empty louvre, the length bearing of trend of rectangle hollow out louvre is axially, n >=20.
Preferably, interior magnetic cup with the top of outer magnetic cup along concordant.
Preferably, the axial height of interior magnetic cup and outer magnetic cup is equal.
Preferably, the axial height of interior magnetic cup passes through additional wire coil and the end less than the axial height of outer magnetic cup, interior magnetic cup
Plate is fixed.
Preferably, the circumferential width sum of n rectangle hollow out louvre accounts for the 1/2～3/4 of outer magnetic cup perimeter side wall.
Preferably, the axial height of n rectangle hollow out louvre accounts for the 3/5～4/5 of outer magnetic cup axial height.
Preferably, the home position of base plate is provided with an installing hole, for installing the interior loop of hall thruster.
Preferably, the peripheral rim portion of base plate is provided with multiple No. two installing holes, for installing the exterior loop of hall thruster.
Preferably, interior magnetic cup, outer magnetic cup and base plate use high permeability material to realize.
Preferably, interior magnetic cup, outer magnetic cup and base plate use electrical pure iron DT4C to realize.
In the course of the work, the compound meeting of the bombardment of ion pair wall and electronics and anode causes pottery to hall thruster
The deposition of amount of heat in passage so that the temperature drift of pottery passage, this partial heat passes through heat radiation by vias inner walls face
Heat be delivered on coil, transfer heat on outer magnetic pole and base plate by conduction of heat so that the temperature liter of magnetic structure
Height, and then reduce the pcrmeability of magnetic circuit, the most magnetically saturated state, the serious performance reducing thruster, coil temperature simultaneously
Du Taigao can reduce the service life of insulated hull, even burns out.Therefore, the present invention is delayed by conduction of heat and heat radiation two ways
With the thermal environment of pottery passage, improve thruster performance and job stability.
The present invention brings and provides the benefit that, by using the magnetic cup structure of hollow out, has not only acted as installation pottery passage
Effect so that pottery passage outer surface directly to spatial environments radiate, increase pottery passage heat-sinking capability, reduce pottery
Passage transmits to the heat of coil and magnetic circuit, thus plays a protective role, and reduces coil and the temperature of magnetic circuit, improves thruster
Life-span and job stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hollow out magnetic cup structure of hall thruster of the present invention；
Fig. 2 is the structural representation of the hall thruster of the hollow out magnetic cup structure of hall thruster of the present invention；
Fig. 3 is the structural representation of solid magnetic cup；
Fig. 4 is the structural representation of macropore engraved structure magnetic cup；
Fig. 5 is the change of magnetic field strength curve comparison using solid magnetic cup with the hall thruster of macropore engraved structure magnetic cup
Figure；Field curve when black solid line is to use solid magnetic cup, the solid line that color is shallow is to use macropore engraved structure magnetic cup at 0 degree
Field curve, dotted line is to use macropore engraved structure magnetic cup field curve at 45 degree；
Fig. 6 is the change of magnetic field strength curve comparison using solid magnetic cup with the hall thruster of magnetic cup of the present invention
Figure；Field curve when black solid line is to use solid magnetic cup, the solid line that color is shallow is to use the magnetic cup of the present invention magnetic field at 0 degree bent
Line, dotted line is to use the magnetic cup of the present invention field curve at 45 degree.
Detailed description of the invention
Below in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 6, specific embodiment being described, shown in Fig. 1 is the hollow out magnetic of hall thruster
Screen structure, is placed in the ceramic passage 5 of thruster between outer magnetic cup 2 and interior magnetic cup 1.Outer magnetic pole 9 and exterior loop 8 is made by bolt
Being fixedly connected, exterior loop 8 is fixed on the outer of base plate 3, and interior loop 7 is fixed on the center of circle of base plate 3, the top of interior loop 7
Fixing internal magnetic pole 6.
The top of interior magnetic cup 1 and outer magnetic cup 2 is along concordant, and the axial height of the two is consistent, or the axial degree of interior magnetic cup 1 itself
Degree is less than outer magnetic cup 2, but installs interpole coil iron core additional in the lower section of interior magnetic cup 1, then is connected with base plate 3, whole height and outer magnetic
Shield 2 equal, ensure that the interior magnetic cup 1 top with outer magnetic cup 2 is along concordant.
Outer magnetic cup 2 wall is provided with n rectangle hollow out louvre 4, and quantity up to circumferential width to account for outer magnetic cup 2 sidewall total
More than half of girth, is effectively increased the thermal-radiating area of pottery passage 5, and heat passes through n rectangle hollow out louvre 4
Scatter in surrounding, improve thruster performance and job stability.
The ceramic heat-dissipating magnetic cup of the present embodiment is engraved structure, at proof strength and the center pair of pottery passage internal magnetic field
Claim, produce under the essentially identical premise in magnetic field with common magnetic cup, add fretwork area significantly so that pottery passage can be straight
Connect and carry out heat radiation to spatial environments, improve the heat-sinking capability of pottery passage, reduce the heat deposition on passage, and then reduce pottery
The temperature of porcelain passage.
Use the hall thruster of solid magnetic cup, its pottery passage internal magnetic field axial distribution figure solid line institute as shown in Figure 6
Show (starting point is pottery channel bottom), the most unchanged at its curve of different angles.The Hall using the present embodiment magnetic cup pushes away
Power device, its pottery passage internal magnetic field axial distribution is in different angles and the magnetic field contrast using solid magnetic cup, and magnetic field intensity becomes
Change trend is basically identical, and all symmetry are good.Further determining that, magnetic cup structure of the present invention is optimal magnetic cup design.
Claims (10)
1. the hollow out magnetic cup structure of hall thruster, it is characterised in that include interior magnetic cup (1), outer magnetic cup (2) and base plate (3)；In
Magnetic cup (1) and outer magnetic cup (2) be inside and outside nested two columnar structured, have therebetween radial gap, and both fixed
At the upper circular surfaces of base plate (3), interior magnetic cup (1), the center of circle of outer magnetic cup (2) overlap with the center of circle of base plate (3)；Outer magnetic cup (2)
Wall has been uniformly distributed circumferentially n rectangle hollow out louvre (4), and the length bearing of trend of rectangle hollow out louvre (4) is axle
To, n >=20.
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that interior magnetic cup (1) and outer magnetic cup
(2) top is along concordant.
The hollow out magnetic cup structure of hall thruster the most according to claim 2, it is characterised in that interior magnetic cup (1) and outer magnetic cup
(2) axial height is equal.
The hollow out magnetic cup structure of hall thruster the most according to claim 2, it is characterised in that the axial height of interior magnetic cup (1)
Degree is fixed with base plate (3) by additional wire coil less than the axial height of outer magnetic cup (2), interior magnetic cup (1).
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that n rectangle hollow out louvre
(4) circumferential width sum accounts for the 1/2～3/4 of outer magnetic cup (2) perimeter side wall.
6. according to the hollow out magnetic cup structure of hall thruster described in claim 1 or 5, it is characterised in that n rectangle hollow out heat radiation
The axial height in hole (4) accounts for the 3/5～4/5 of outer magnetic cup (2) axial height.
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that the home position of base plate (3)
It is provided with an installing hole, for installing the interior loop of hall thruster.
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that the peripheral rim portion of base plate (3)
It is provided with multiple No. two installing holes, for installing the exterior loop of hall thruster.
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that interior magnetic cup (1), outer magnetic cup
(2) realize with base plate (3) employing high permeability material.
The hollow out magnetic cup structure of hall thruster the most according to claim 1, it is characterised in that interior magnetic cup (1), outer magnetic cup
(2) realize with base plate (3) employing electrical pure iron DT4C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832003.0A CN106321389A (en) | 2016-09-19 | 2016-09-19 | Hollowed-out magnetic shield structure for hall thruster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832003.0A CN106321389A (en) | 2016-09-19 | 2016-09-19 | Hollowed-out magnetic shield structure for hall thruster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321389A true CN106321389A (en) | 2017-01-11 |
Family
ID=57787391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832003.0A Pending CN106321389A (en) | 2016-09-19 | 2016-09-19 | Hollowed-out magnetic shield structure for hall thruster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321389A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779865A (en) * | 2019-03-14 | 2019-05-21 | 南华大学 | Permanent magnetism hall thruster igniter |
| CN111219304A (en) * | 2019-03-18 | 2020-06-02 | 哈尔滨工业大学 | Magnetic screen structure of Hall thruster with large height-diameter ratio |
| CN112483341A (en) * | 2020-11-25 | 2021-03-12 | 哈尔滨工业大学 | Hall thruster heat conduction support and Hall thruster comprising same |
| CN113133173A (en) * | 2021-04-16 | 2021-07-16 | 哈尔滨工业大学 | Magnetic circuit structure of Hall thruster with multiple ring magnetic conduction columns |
| CN113266542A (en) * | 2021-06-29 | 2021-08-17 | 哈尔滨工业大学 | Hall thruster magnetic circuit heat radiation structure |
| CN113374662A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
| CN114017274A (en) * | 2021-11-24 | 2022-02-08 | 哈尔滨工业大学 | Hall thruster outer magnetic pole protection cover plate |
| WO2023038611A1 (en) * | 2021-09-13 | 2023-03-16 | Частное Акционерное Общество "Фэд" | Stationary ion/plasma engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208080B1 (en) * | 1998-06-05 | 2001-03-27 | Primex Aerospace Company | Magnetic flux shaping in ion accelerators with closed electron drift |
| CN104632565A (en) * | 2014-12-22 | 2015-05-20 | 兰州空间技术物理研究所 | Hall thruster magnetic circuit structure |
| CN105889006A (en) * | 2016-05-03 | 2016-08-24 | 哈尔滨工业大学 | Hall thruster ceramic cooling support |
-
2016
- 2016-09-19 CN CN201610832003.0A patent/CN106321389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208080B1 (en) * | 1998-06-05 | 2001-03-27 | Primex Aerospace Company | Magnetic flux shaping in ion accelerators with closed electron drift |
| CN104632565A (en) * | 2014-12-22 | 2015-05-20 | 兰州空间技术物理研究所 | Hall thruster magnetic circuit structure |
| CN105889006A (en) * | 2016-05-03 | 2016-08-24 | 哈尔滨工业大学 | Hall thruster ceramic cooling support |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779865A (en) * | 2019-03-14 | 2019-05-21 | 南华大学 | Permanent magnetism hall thruster igniter |
| CN109779865B (en) * | 2019-03-14 | 2024-04-19 | 南华大学 | Ignition device of permanent magnet Hall thruster |
| CN111219304A (en) * | 2019-03-18 | 2020-06-02 | 哈尔滨工业大学 | Magnetic screen structure of Hall thruster with large height-diameter ratio |
| CN111219304B (en) * | 2019-03-18 | 2021-01-05 | 哈尔滨工业大学 | Magnetic screen structure of Hall thruster with large height-diameter ratio |
| CN112483341A (en) * | 2020-11-25 | 2021-03-12 | 哈尔滨工业大学 | Hall thruster heat conduction support and Hall thruster comprising same |
| CN113133173A (en) * | 2021-04-16 | 2021-07-16 | 哈尔滨工业大学 | Magnetic circuit structure of Hall thruster with multiple ring magnetic conduction columns |
| CN113133173B (en) * | 2021-04-16 | 2022-05-10 | 哈尔滨工业大学 | Magnetic circuit structure of Hall thruster with multiple ring magnetic conduction columns |
| CN113266542A (en) * | 2021-06-29 | 2021-08-17 | 哈尔滨工业大学 | Hall thruster magnetic circuit heat radiation structure |
| CN113374662A (en) * | 2021-06-29 | 2021-09-10 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
| CN113374662B (en) * | 2021-06-29 | 2022-03-04 | 哈尔滨工业大学 | Magnetic circuit structure for changing background magnetic field of middle-placed cathode |
| WO2023038611A1 (en) * | 2021-09-13 | 2023-03-16 | Частное Акционерное Общество "Фэд" | Stationary ion/plasma engine |
| CN114017274A (en) * | 2021-11-24 | 2022-02-08 | 哈尔滨工业大学 | Hall thruster outer magnetic pole protection cover plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106321389A (en) | Hollowed-out magnetic shield structure for hall thruster | |
| CN107165794B (en) | A kind of adjustable low-power hall thruster with magnetic screening effect in magnetic field | |
| CN104632565A (en) | Hall thruster magnetic circuit structure | |
| US8129913B2 (en) | Closed electron drift thruster | |
| CN114375484B (en) | Ion source, heat-insulating repeller used in ion source, and electrode | |
| CN105889006B (en) | A kind of hall thruster ceramic heat-dissipating holder | |
| CN114658623A (en) | Integrated magnetic screen anode structure for low-power Hall thruster | |
| CN111219306A (en) | Hall thruster with double magnetic screens | |
| CN111219304B (en) | Magnetic screen structure of Hall thruster with large height-diameter ratio | |
| CN112628098A (en) | Hall accelerator with sinking type hollow inner magnetic pole structure | |
| US11905937B2 (en) | Magnetic pole structure for hall thruster | |
| CN104362065A (en) | Large-caliber parallel beam ion source used for ion beam etcher | |
| CN111063603B (en) | Semiconductor processing equipment | |
| CN111900069B (en) | Ion source magnetic conduction anode gas supply device integrated structure | |
| CN114980468A (en) | Plasma gun | |
| CN209357691U (en) | A kind of novel ion source | |
| CN101740295A (en) | Novel magnetron heat radiating fin structure | |
| CN117424365B (en) | Motor cooling assembly, compressor and air conditioner | |
| RU2204053C2 (en) | Plasma-jet with closed drift of electrons | |
| CN211656492U (en) | Plasma source of high power electrons and ions | |
| CN218004770U (en) | Semiconductor processing equipment | |
| RU2575202C1 (en) | Direct-current electric arc plasmatron for waste plasma-processing plants | |
| CN216528737U (en) | Ion source device for solid source injection process | |
| CN115336411B (en) | Thermal protection device of Hall thruster without wall surface energy loss | |
| CN212411993U (en) | Magnetron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |