CN105736271B - A kind of small-bore hall thruster - Google Patents
A kind of small-bore hall thruster Download PDFInfo
- Publication number
- CN105736271B CN105736271B CN201610086873.8A CN201610086873A CN105736271B CN 105736271 B CN105736271 B CN 105736271B CN 201610086873 A CN201610086873 A CN 201610086873A CN 105736271 B CN105736271 B CN 105736271B
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- CN
- China
- Prior art keywords
- anode
- outlet
- magnetic core
- hall thruster
- air inlet
- 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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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
Abstract
The present invention disclose one kind it is simple in structure, size is small, magnetic field radial component axial gradient higher, the small-bore hall thruster for being adapted to different anode voltages.The hall thruster includes bobbin, interior loop, gas circuit insulator, inner magnetic core, outer magnetic pole, outlet pole shoe, insulating layer, anode, air inlet pipe and nose-cone.Enter in use, propellant enters air inlet pipe after gas circuit insulator in the hollow cavity of anode, ionization is produced under magnetically confined, the outlet surrounded by outlet pole shoe and nose-cone sprays.The magnetic field is produced by interior loop, reaches outlet pole shoe through inner magnetic core and outer magnetic pole, anode also has the magnetic line of force to pass through under the magnetic field of outlet pole shoe.The thruster only has an interior loop, there is no exterior loop, the magnetic field of interior loop is led to outlet by inner magnetic core, outer magnetic pole and outlet pole shoe, the magnetic structure of this kind of form, on the premise of same efficiency is obtained with heavy caliber thruster, the size of thruster is set significantly to reduce.
Description
Technical field
Invention is related to a kind of hall thruster, and in particular to a kind of small-bore hall thruster, belongs to space technology and low
Isothermal plasma technical field.
Background technology
Hall electric propulsion is as a kind of advanced space electric propulsion technology, with pushing force density is big, system composition is simple, can
By the advantage such as property is high, launch cost is low, become one of space electric propulsion device being most widely used.
Fig. 1 is the hall thruster structure diagram of the prior art, the performance when bore reduces of existing hall thruster
Drastically decline (efficiency is less than 20%).
The content of the invention
In view of this, the present invention provides a kind of small-bore hall thruster, the hall thruster of this kind of structure type, magnetic field
Radial component axial gradient higher, be adapted to different anode voltages.
The small-bore hall thruster, including：Bobbin, interior loop, gas circuit insulator, inner magnetic core, outer magnetic pole, go out
Mouth pole shoe, insulating layer, anode, air inlet pipe and nose-cone.
The inner magnetic core is provided with the column construction of the shaft shoulder for one end, is set with its outer circumference surface by the bobbin
There is interior loop；The outer magnetic pole is hollow cylindrical structure, and coaxial package is outside the inner magnetic core, its one end and the inner magnetic core end
The shaft shoulder in portion is affixed, and the other end and the outlet pole shoe are affixed；The anode is sleeved on the inner magnetic core by nose-cone not to be had
One end of the shaft shoulder is set, and the interior loop is between anode and the shaft shoulder of inner magnetic core at this time；The anode is away from interior loop
One end is provided with annular groove, is consequently formed toroidal cavity, and the opening of the toroidal cavity is the outlet of the hall thruster.
Air inlet pipe, one end and the sun of the air inlet pipe are provided with annular region between the interior loop and outer magnetic pole
The toroidal cavity perforation of pole, the other end pass through entrance of the shaft shoulder of the inner magnetic core as propellant, are set in the air inlet pipe
It is equipped with gas circuit insulator；One end that the outlet pole shoe is provided with annular groove by insulating layer with anode is connected.
As a kind of preferred embodiment of the present invention, ring is provided with the annular region between the air inlet pipe and outer magnetic pole
The electrical screen of shape.
As a kind of preferred embodiment of the present invention, the nose-cone uses ceramic material, it is in the outlet of hall thruster
Place is tilted to the inner magnetic core axis, and in the exit wall thickness increase of hall thruster.
As a kind of preferred embodiment of the present invention, the anode uses permeability magnetic material.
As a kind of preferred embodiment of the present invention, two air inlets are provided with the circumferencial direction of the inner magnetic core
Pipe.
Beneficial effect：
(1) thruster only has an interior loop, without exterior loop, the magnetic field of interior loop by inner magnetic core, outer magnetic pole and
Outlet pole shoe is led to outlet, and the magnetic structure of this kind of form, on the premise of same efficiency is obtained with heavy caliber thruster, makes to push away
The size of power device significantly reduces.
(2) nose-cone of outlet port uses ceramic material, and exit is thicker, can extend the thruster service life.
(3) anode uses permeability magnetic material, can improve Distribution of Magnetic Field.
(4) two-way air inlet, can homogenize gas inflow.
Brief description of the drawings
Fig. 1 is hall thruster composition schematic diagram in the prior art；
Fig. 2 is the composition schematic diagram of the hall thruster of the present invention.
Wherein：The outer magnetic pole of 1- bobbins, 2- interior loops, 3- gas circuits insulator, 4- inner magnetic cores, 5-, 6- outlets pole shoe, 7- are exhausted
Edge layer, 8- anodes, 9- electrical screens, 10- air inlet pipe, 11- nose-cones
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present embodiment provides it is a kind of it is simple in structure, size is small, magnetic field radial component axial gradient higher, be adapted to difference
The small-bore hall thruster of anode voltage.The small-bore refers to the mid power medium caliber (100mm) of opposite mainstream
For hall thruster, the thruster spout aperture is 32mm in the present embodiment.
The concrete structure of the hall thruster as shown in Fig. 2, generally axially symmetric structure, including bobbin 1, interior loop 2,
Gas circuit insulator 3, inner magnetic core 4, outer magnetic pole 5, outlet pole shoe 6, insulating layer 7, anode 8, electrical screen 9, air inlet pipe 10 and nose-cone
11。
The inner magnetic core 4 is column construction, and its one end is provided with the shaft shoulder being relatively large in diameter；Pass through line on its outer circumference surface
Coil 1 is set with interior loop 2；The outer magnetic pole 5 is hollow cylindrical structure, and coaxial package is outside the inner magnetic core 4, its one end and institute
It is affixed to state the shaft shoulder of 4 end of inner magnetic core, the other end and the outlet pole shoe 6 are affixed.The anode 8 is sleeved on by nose-cone 11
The inner magnetic core 4 is not provided with one end of the shaft shoulder, and the interior loop 2 is located between anode 8 and the shaft shoulder of inner magnetic core 4 at this time；Institute
State the one end of anode 8 away from interior loop and be provided with annular groove, be consequently formed toroidal cavity, the opening of the toroidal cavity is described
The outlet of hall thruster, thruster outlet diameter 32mm.The anode 8 of permeability magnetic material by being made, its wall thickness 2.5mm,
Intracavity diameter 64mm, lumen width 20mm.
Setting two in annular region between the interior loop 2 and outer magnetic pole 5 has air inlet pipe 10, the air inlet pipe 10
The toroidal cavity of one end and anode 8 penetrate through, the other end through the inner magnetic core 4 entrance of the shaft shoulder as propellant, in institute
State and gas circuit insulator 3 is provided with air inlet pipe 10；The outlet pole shoe 6 is provided with annular groove by insulating layer 7 and anode 8
One end is connected.
The nose-cone 11 uses ceramic material, and it is in be tilted to the axis of inner magnetic core 4 that it, which is located at hall thruster exit,
Pyramidal structure, and exit wall thickness is thicker, can extend the thruster service life.
The electrical screen of annular is provided with annular region between the air inlet pipe 10 and outer magnetic pole 5, for preventing the moon
The electronics of pole transmitting enters arc chamber at electrical screen and ion is compound, and the ion of ejection is reduced, and thruster performance will decline.
Its operation principle is：Propellant enters air inlet pipe 10 and enters after gas circuit insulator 3 in the toroidal cavity of anode 10,
Ionization is produced under magnetically confined, the outlet surrounded by outlet pole shoe 6, nose-cone 11 and anode 8 sprays.Shown magnetic field is by interior lines
Circle 2 produces, and reaches outlet pole shoe 6 through inner magnetic core 4 and outer magnetic pole 5, anode 8 also has the magnetic line of force to lead under the magnetic field of outlet pole shoe 6
Cross.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (5)
- A kind of 1. small-bore hall thruster, it is characterised in that including：Bobbin (1), interior loop (2), gas circuit insulator (3), Inner magnetic core (4), outer magnetic pole (5), outlet pole shoe (6), insulating layer (7), anode (8), air inlet pipe (10) and nose-cone (11)；The inner magnetic core (4) is provided with the column construction of the shaft shoulder for one end, is covered on its outer circumference surface by the bobbin (1) Equipped with interior loop (2)；The outer magnetic pole (5) is hollow cylindrical structure, coaxial package in the inner magnetic core (4) outside, its one end with The shaft shoulder of inner magnetic core (4) end is affixed, and the other end and the outlet pole shoe (6) are affixed；The anode (8) passes through nose-cone (11) one end that the inner magnetic core (4) is not provided with the shaft shoulder is sleeved on, the interior loop (2) is located at anode (8) and interior magnetic at this time Between the shaft shoulder of core (4)；The one end of the anode (8) away from interior loop (2) is provided with annular groove, is consequently formed annular sky Chamber, the opening of the toroidal cavity are the outlet of the hall thruster；Air inlet pipe (10), the air inlet pipe (10) are provided with annular region between the interior loop (2) and outer magnetic pole (5) The toroidal cavity of one end and anode (8) penetrate through, the other end through the inner magnetic core (4) entrance of the shaft shoulder as propellant, Gas circuit insulator (3) is provided with the air inlet pipe (10)；The outlet pole shoe (6) is set by insulating layer (7) and anode (8) The one end for being equipped with annular groove is connected.
- 2. small-bore hall thruster as claimed in claim 1, it is characterised in that in the air inlet pipe (10) and outer magnetic pole (5) electrical screen (9) of annular is provided with the annular region between.
- 3. small-bore hall thruster as claimed in claim 1 or 2, it is characterised in that the nose-cone (11) is using ceramics Material, it is tilted in the exit of hall thruster to the inner magnetic core (4) axis, and in the exit wall thickness of hall thruster Increase.
- 4. small-bore hall thruster as claimed in claim 1 or 2, it is characterised in that the anode (8) uses magnetic conduction material Material.
- 5. small-bore hall thruster as claimed in claim 1 or 2, it is characterised in that in the circumference side of the inner magnetic core (4) Two air inlet pipe (10) are set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086873.8A CN105736271B (en) | 2016-02-16 | 2016-02-16 | A kind of small-bore hall thruster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610086873.8A CN105736271B (en) | 2016-02-16 | 2016-02-16 | A kind of small-bore hall thruster |
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| Publication Number | Publication Date |
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| CN105736271A CN105736271A (en) | 2016-07-06 |
| CN105736271B true CN105736271B (en) | 2018-05-08 |
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| CN201610086873.8A Active CN105736271B (en) | 2016-02-16 | 2016-02-16 | A kind of small-bore hall thruster |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837722B (en) * | 2016-11-29 | 2019-01-08 | 上海空间推进研究所 | A kind of hall thruster using lightweight integration anode |
| CN111120232B (en) * | 2018-11-01 | 2021-08-03 | 哈尔滨工业大学 | Cusped field plasma thruster capable of realizing fine adjustment and discharge control performance |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953517A (en) * | 2014-05-13 | 2014-07-30 | 哈尔滨工业大学 | Hall thruster improving device |
| CN105003408A (en) * | 2015-07-16 | 2015-10-28 | 兰州空间技术物理研究所 | Ion and Hall hybrid type electric thruster |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2945842B1 (en) * | 2009-05-20 | 2011-07-01 | Snecma | PLASMA PROPELLER WITH HALL EFFECT. |
| US9089040B2 (en) * | 2010-03-01 | 2015-07-21 | Mitsubishi Electric Corporation | Hall thruster, cosmonautic vehicle, and propulsion method |
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2016
- 2016-02-16 CN CN201610086873.8A patent/CN105736271B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953517A (en) * | 2014-05-13 | 2014-07-30 | 哈尔滨工业大学 | Hall thruster improving device |
| CN105003408A (en) * | 2015-07-16 | 2015-10-28 | 兰州空间技术物理研究所 | Ion and Hall hybrid type electric thruster |
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| CN105736271A (en) | 2016-07-06 |
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