CN101599400A - A kind of assembly type hollow cathode heater - Google Patents
A kind of assembly type hollow cathode heater Download PDFInfo
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- CN101599400A CN101599400A CNA2008101105325A CN200810110532A CN101599400A CN 101599400 A CN101599400 A CN 101599400A CN A2008101105325 A CNA2008101105325 A CN A2008101105325A CN 200810110532 A CN200810110532 A CN 200810110532A CN 101599400 A CN101599400 A CN 101599400A
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- cathode tube
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- heater strip
- sleeved
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Abstract
A kind of assembly type hollow cathode heater comprises cathode tube, prelocalization ring, ceramic skeleton, heater strip, ceramic coat, back locating ring, fairlead and emitter; Ceramic skeleton is sleeved on the cathode tube cylindrical in the tight fit mode, emitter is sleeved in the cathode tube, ceramic coat is sleeved on the ceramic skeleton that is wound with heater strip, prelocalization ring, back locating ring are welded on the two ends of ceramic skeleton and ceramic coat, heater strip one end is welded on the cathode tube, and the other end is sleeved on the fairlead.During startup, between fairlead and cathode tube, add 10V～15V voltage, make and produce 8A～12A electric current in the heater strip, continue 3min～5min, emitter is heated to 1500K～1800K, make it possess electron emissivity.The assembly type hollow cathode heater structure that the present invention adopts is simple, be easy to manufacturing, rate of finished products and reliability height, can be used for xenon ion thruster, Hall thruster, plasma source hollow cathode assembly.
Description
Technical field
The present invention relates to a kind of hollow cathode assembly type heater, belong to the heater element field.
Background technology
The hollow cathode assembly is the key components of xenon ion thruster, Hall thruster or other plasma sources.Before hollow cathode started, the emitter that must utilize heater will be positioned at cathode tube inside was heated to sufficiently high temperature (surpassing 1500K usually), and emitter just can possess electron emission ability.Existing hollow cathode assembly does not adopt the fairlead structure substantially, heater strip is directly drawn as lead-in wire use, and maybe will go between to go up and twine the tantalum paper tinsel, strengthens lead-in wire intensity with the overstriking negative line, and effect is unsatisfactory; And complex structure, to be not easy to manufacturing, fabrication yield, reliability low.
Traditional sintered type hollow cathode heater, pottery is still immature with the integral sintering process procedure technology of heater strip.The drawing process and the Quality Control Procedure complexity of the heater strip of traditional armored hollow cathode heater.
Heater strip is not wound in the helicla flute of ceramic skeleton, is not easy to be shaped, and heater strip forms the splitting defective easily, increases lead resistance, rising wire temperature, reduces lead-in wire intensity simultaneously.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of simple in structure, be easy to make, fabrication yield height, hollow cathode heater that reliability is high.
Technical solution of the present invention is: assembly type hollow cathode heater comprises cathode tube, prelocalization ring, ceramic skeleton, heater strip, ceramic coat, back locating ring, fairlead and emitter.Wherein, there is spiral groove in the ceramic skeleton outside, ceramic skeleton is sleeved on the cathode tube cylindrical in the tight fit mode, emitter is sleeved in the cathode tube, ceramic coat cooperates with ceramic skeleton heater strip is limited in the spiral groove of ceramic skeleton, prelocalization ring, back locating ring are welded on the two ends of ceramic skeleton and ceramic coat, are used to limit the axial displacement in cathode tube of ceramic skeleton and ceramic coat; Heater strip one end is welded on the cathode tube, and the other end is sleeved on the fairlead.
Working method: when hollow cathode starts, between fairlead and cathode tube, add 10V～15V voltage, make and produce 8A～12A electric current in the heater strip, continue 3min～5min, emitter can be heated to 1500K～1800K, make emitter possess electron emissivity.
Beneficial effect: be connected the radially relative displacement between restriction heater body and the cathode tube among the present invention between ceramic skeleton and the cathode tube with tight fit mode suit; Prelocalization ring, back locating ring, axially relative displacement between restriction heater body and the cathode tube, the anti-vibration ability of raising heater.
Adopt thin tantalum pipe to do fairlead, and fairlead is sleeved on makees lead-in wire on the heater strip, not only can reduce lead resistance, reduce wire temperature, can improve lead-in wire intensity simultaneously,
In addition, heater strip is wound in the helicla flute of ceramic skeleton, is shaped easily, and heater strip is not easy to form the splitting defective in the forming process, good reliability during work.
At last, owing to adopt modular construction, ceramic skeleton, ceramic coat can be produced in batches, the rate of finished products height.
Description of drawings
Fig. 1 is an assembly type hollow cathode heater axial, cross-sectional view of the present invention;
Wherein: locating ring, 7-fairlead, 8-emitter behind 1-cathode tube, 2-prelocalization ring, 3-ceramic skeleton, 4-heater strip, 5-ceramic coat, the 6-
Embodiment
As shown in Figure 1, be hollow cathode heater of the present invention, it is citation form of the present invention, technical solution of the present invention is: assembly type hollow cathode heater comprises cathode tube 1, prelocalization ring 2, ceramic skeleton 3, heater strip 4, ceramic coat 5, back locating ring 6, fairlead 7 and emitter 8.Ceramic skeleton 3 adopts the tight fit suit to be connected with cathode tube 1, there is spiral groove in ceramic skeleton 3 outsides, ceramic coat 5 cooperates with ceramic skeleton 3 heater strip 4 is limited in the spiral groove of ceramic skeleton, and prelocalization ring 2, back locating ring 6 restriction ceramic skeletons 3, ceramic coat 5 are in the axial displacement of cathode tube.Heater strip one end is welded on the cathode tube 1, and the other end is sleeved on the fairlead 7.
As shown in Figure 1, at first, ceramic skeleton 3 tight fits are sleeved on the cylindrical of cathode tube 1, emitter 8 is sleeved in the cathode tube 1, and prelocalization ring 2 is welded on cathode tube 1 front position; Subsequently, heater strip 4 one ends are welded on the prelocalization ring 2, and heater strip 4 are wound in the helicla flute of ceramic skeleton 3, at the fairlead 7 of heater strip 4 other end suit suitable lengths; At last, ceramic coat 5 is sleeved on the ceramic skeleton 3, back locating ring 6 is welded on cathode tube 1 rear end, ceramic skeleton 3 axially can not be moved in cathode tube 1.
When hollow cathode starts, between fairlead 7 and cathode tube 1, add 10V～15V voltage, make and produce 8A～12A electric current in the heater strip, continue 3min～5min, emitter can be heated to 1500K～1800K, make emitter possess electron emissivity.
Claims (2)
1. an assembly type hollow cathode heater comprises cathode tube (1), prelocalization ring (2), ceramic skeleton (3), heater strip (4), ceramic coat (5), back locating ring (6), fairlead (7), emitter (8); Wherein, ceramic skeleton (3) adopts the tight fit mode to be sleeved on cathode tube (1) cylindrical, emitter (8) is sleeved in the cathode tube, there is spiral groove in ceramic skeleton (3) outside, ceramic skeleton (3) cooperates with ceramic coat (5) heater strip (4) is limited in the spiral groove of ceramic skeleton, and prelocalization ring (2), back locating ring (6) are welded on two ends; Heater strip (4) one ends are welded on the cathode tube (1), and the other end is sleeved on (7) on the fairlead.
2. a kind of assembly type hollow cathode heater according to claim 1, it is characterized in that: between fairlead (7) and cathode tube (1), add 10V～15V voltage, make to produce 8A～12A electric current in the heater strip (4), continue 3min～5min, emitter (8) is heated to 1500K～1800K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810110532 CN101599400B (en) | 2008-06-02 | 2008-06-02 | Assembly type hollow cathode heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810110532 CN101599400B (en) | 2008-06-02 | 2008-06-02 | Assembly type hollow cathode heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101599400A true CN101599400A (en) | 2009-12-09 |
| CN101599400B CN101599400B (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810110532 Active CN101599400B (en) | 2008-06-02 | 2008-06-02 | Assembly type hollow cathode heater |
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| CN (1) | CN101599400B (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497721A (en) * | 2011-11-29 | 2012-06-13 | 北京大学 | Plasma device with double-hollow cathode and double-hollow cathode and applications |
| CN103311066A (en) * | 2013-06-03 | 2013-09-18 | 哈尔滨工业大学 | Emitter with inner core for self-held hollow cathode of spacecraft |
| CN103687097A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Heater strip casing pipe |
| CN103762135A (en) * | 2013-12-19 | 2014-04-30 | 兰州空间技术物理研究所 | Heat shield component of hollow cathode heater |
| CN105006412A (en) * | 2015-07-16 | 2015-10-28 | 兰州空间技术物理研究所 | Ceramic assembly of hollow cathode heater |
| CN105626410A (en) * | 2015-12-25 | 2016-06-01 | 上海空间推进研究所 | Plume neutralizer of space electric thruster |
| CN105788998A (en) * | 2016-04-19 | 2016-07-20 | 北京航空航天大学 | Small-size and miniwatt hollow barium-tungsten cathode |
| CN105982362A (en) * | 2015-03-19 | 2016-10-05 | 方特慕控股第私人有限公司 | Electronic smoking device |
| CN107031870A (en) * | 2017-03-03 | 2017-08-11 | 兰州空间技术物理研究所 | A kind of polycyclic surface of emission hundred pacifies level hollow cathode |
| CN107633986A (en) * | 2017-08-25 | 2018-01-26 | 金华职业技术学院 | A kind of method for producing electron beam |
| CN108231508A (en) * | 2017-12-22 | 2018-06-29 | 兰州空间技术物理研究所 | The compound cathode tube and its manufacturing method of a kind of long-life hollow cathode |
| CN108458799A (en) * | 2017-12-22 | 2018-08-28 | 兰州空间技术物理研究所 | A kind of hollow cathode emitter temperature online diagnostic method based on C-V characteristic |
| CN108571431A (en) * | 2018-04-13 | 2018-09-25 | 哈尔滨工业大学 | A kind of mechanical support structure of magnetic focusing hall thruster hollow cathode |
| CN109585237A (en) * | 2018-11-13 | 2019-04-05 | 上海空间推进研究所 | A kind of novel hollow cathode heater structure |
| CN109599309A (en) * | 2018-12-03 | 2019-04-09 | 上海空间推进研究所 | Hollow cathode heater and hollow cathode structure |
| WO2019215335A1 (en) * | 2018-05-11 | 2019-11-14 | University Of Southampton | Hollow cathode apparatus |
| CN112103154A (en) * | 2020-09-22 | 2020-12-18 | 成都创元电子有限公司 | Indirect-heating lanthanum hexaboride cathode |
| CN114513868A (en) * | 2022-02-18 | 2022-05-17 | 哈尔滨工业大学 | Electric heater assembly of electric propulsion hollow cathode |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259873Y (en) * | 2008-06-02 | 2009-06-17 | 中国航天科技集团公司第五研究院第五一○研究所 | Assembled hollow cathode heater |
-
2008
- 2008-06-02 CN CN 200810110532 patent/CN101599400B/en active Active
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497721A (en) * | 2011-11-29 | 2012-06-13 | 北京大学 | Plasma device with double-hollow cathode and double-hollow cathode and applications |
| CN103311066B (en) * | 2013-06-03 | 2015-08-19 | 哈尔滨工业大学 | There is the emitter of the hollow cathode of controlling oneself for spacecraft of inner core |
| CN103311066A (en) * | 2013-06-03 | 2013-09-18 | 哈尔滨工业大学 | Emitter with inner core for self-held hollow cathode of spacecraft |
| CN103687097A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Heater strip casing pipe |
| CN103762135B (en) * | 2013-12-19 | 2016-03-30 | 兰州空间技术物理研究所 | The heat shield assembly of hollow cathode heater |
| CN103762135A (en) * | 2013-12-19 | 2014-04-30 | 兰州空间技术物理研究所 | Heat shield component of hollow cathode heater |
| CN105982362A (en) * | 2015-03-19 | 2016-10-05 | 方特慕控股第私人有限公司 | Electronic smoking device |
| CN105982362B (en) * | 2015-03-19 | 2021-03-09 | 方特慕控股第一私人有限公司 | Electronic smoking device |
| CN105006412A (en) * | 2015-07-16 | 2015-10-28 | 兰州空间技术物理研究所 | Ceramic assembly of hollow cathode heater |
| CN105006412B (en) * | 2015-07-16 | 2017-03-22 | 兰州空间技术物理研究所 | Ceramic assembly of hollow cathode heater |
| CN105626410B (en) * | 2015-12-25 | 2018-08-03 | 上海空间推进研究所 | A kind of space electric thruster plume averager |
| CN105626410A (en) * | 2015-12-25 | 2016-06-01 | 上海空间推进研究所 | Plume neutralizer of space electric thruster |
| CN105788998A (en) * | 2016-04-19 | 2016-07-20 | 北京航空航天大学 | Small-size and miniwatt hollow barium-tungsten cathode |
| CN107031870A (en) * | 2017-03-03 | 2017-08-11 | 兰州空间技术物理研究所 | A kind of polycyclic surface of emission hundred pacifies level hollow cathode |
| CN107633986A (en) * | 2017-08-25 | 2018-01-26 | 金华职业技术学院 | A kind of method for producing electron beam |
| CN107633986B (en) * | 2017-08-25 | 2023-09-05 | 金华职业技术学院 | Method for generating electron beam |
| CN108458799A (en) * | 2017-12-22 | 2018-08-28 | 兰州空间技术物理研究所 | A kind of hollow cathode emitter temperature online diagnostic method based on C-V characteristic |
| CN108231508A (en) * | 2017-12-22 | 2018-06-29 | 兰州空间技术物理研究所 | The compound cathode tube and its manufacturing method of a kind of long-life hollow cathode |
| CN108571431A (en) * | 2018-04-13 | 2018-09-25 | 哈尔滨工业大学 | A kind of mechanical support structure of magnetic focusing hall thruster hollow cathode |
| WO2019215335A1 (en) * | 2018-05-11 | 2019-11-14 | University Of Southampton | Hollow cathode apparatus |
| US11690161B2 (en) | 2018-05-11 | 2023-06-27 | University Of Southampton | Hollow cathode apparatus |
| CN109585237A (en) * | 2018-11-13 | 2019-04-05 | 上海空间推进研究所 | A kind of novel hollow cathode heater structure |
| CN109599309A (en) * | 2018-12-03 | 2019-04-09 | 上海空间推进研究所 | Hollow cathode heater and hollow cathode structure |
| CN112103154A (en) * | 2020-09-22 | 2020-12-18 | 成都创元电子有限公司 | Indirect-heating lanthanum hexaboride cathode |
| CN112103154B (en) * | 2020-09-22 | 2023-11-14 | 成都创元电子有限公司 | Indirect heating lanthanum hexaboride cathode |
| CN114513868A (en) * | 2022-02-18 | 2022-05-17 | 哈尔滨工业大学 | Electric heater assembly of electric propulsion hollow cathode |
| CN114513868B (en) * | 2022-02-18 | 2022-09-09 | 哈尔滨工业大学 | Electric heater assembly of electric propulsion hollow cathode |
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| CN101599400B (en) | 2011-02-09 |
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