CN201904299U - Gun core for high-power electronic gun - Google Patents
Gun core for high-power electronic gun Download PDFInfo
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- CN201904299U CN201904299U CN2010206857218U CN201020685721U CN201904299U CN 201904299 U CN201904299 U CN 201904299U CN 2010206857218 U CN2010206857218 U CN 2010206857218U CN 201020685721 U CN201020685721 U CN 201020685721U CN 201904299 U CN201904299 U CN 201904299U
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- rifle core
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Abstract
The utility model provides a gun core for a high-power electronic gun, which comprises a gun core body, wherein the gun core body comprises a heat dissipation unit and a cooling air passage arranged at the periphery of the gun core body; an inner hood is arranged at the periphery of a filament of the gun core and used for concentrating bombardment currents; the cooling air passage arranged at the periphery of the gun core body is an air passage enclosed by a group of air guide drums, a shielding case and an outer hood which is arranged outside a cathode component; the heat dissipation unit is provided with an upper heat dissipation body which adopts a radial radiating plate shaped structure; and the filament is compacted in the junction position of a filament fixing block by the combination of a middle press plate and a bolt; a longitudinal wall of a porcelain seat is corrugated; three gun core electrode wiring terminals used for being connected with a high voltage cable are all arranged in the horizontal direction; and holes are formed on the air guide drums. With the gun core, the stable operating power of the existing electronic gun is increased, the air cooling structure is more reasonable, the filament is installed more quickly, the service life of the filament is prolonged, the performance of the gun core is more stable, and the installation of the high voltage cable is more convenient.
Description
Technical field
The utility model relates to a kind of smelting equipment unit, refers to a kind of structural improvement of great-power electronic rifle rifle core especially.
Background technology
The electron gun of electron beam furnace is a smelting process with producing electron beam and can the controlling electron beam shape and the device of track according to technological requirement, and the rifle core is the critical piece that electron gun produces electron beam, its electron beam of drawing can carry out melting to refractory metal, alloy and compound thereof and composite material (being mostly material requested in Aero-Space and the national defense construction), to reach the purpose of purification.Present day by day ripe along with the electronic torch melting polysilicon process, powerful electron beam furnace also more and more are used in the purification of polysilicon of solar energy industry.Therefore, for the needs of the development of the national economy and national defense safety construction, develop powerful electron gun rifle core and have important practical significance.
The rifle core is the generation systems that electron gun produces electron beam, mode of heating difference according to negative electrode, can be divided into two kinds of situations of direct-heated cathode and cathodes heated indirectly by an el, but general great-power electronic rifle rifle core (especially the utility model can reach the rifle core of 800kw power) can only adopt cathodes heated indirectly by an el.The operation principle of cathodes heated indirectly by an el system is at first filament to be heated, add between cathode block and filament that then certain secondary high pressure makes the filament surface send electronics, thereby make these electron bombards of sending from filament to cathode block, thereby realized the heating of target piece, equally, cathode block overflows electronics and flies to anode hole under the acting in conjunction of potential electrical fields such as several ten thousand volts high-voltage electrostatic field between negative electrode and the anode and bunching electrode, the electron beam that also promptly forms a desired design shape enters the electronics light path system through anode hole.Can the filament of rifle core and the distance between the negative electrode determining electron gun draw the electron beam of the size and the shape of required power to a great extent.Therefore, it is generally acknowledged in the industry that the structure of electron beam generation systems directly influences the track of performance, emissivities and the electron beam of an electron gun, and then have influence on the performance of whole electron gun.Therefore, can think in some sense: the rifle core is the core component of electron gun (particularly great-power electronic rifle).
The rifle core of electron gun is worked under vacuum, high temperature and high pressure (several ten thousand volts of voltages) state, so can the electron gun that whether rationally directly determining of the design of rifle cored structure operate as normal use.Especially powerful electron gun is in working order the time, the cathod system part temperatures of its rifle head is all very high, if structure have slightly unreasonable then can cause loose contact between the gas leakage of frequent electrion, electron gun rifle core, the parts and open circuit, parts distortion and sintering wait a series of serious consequences together, causes electron gun to use.Therefore have only the structure of the related components by changing the rifle core to remedy high-power rifle core design and use in the difficulty that run into.
The type of cooling of electron gun rifle core has air-cooled and the water-cooled dual mode at present.Its born defective can not be made us tolerance especially though the water-cooling pattern cooling effect is obvious, water-cooling pattern requires will be connected with a lot of water routes in the rifle core, because of all multifactor effective power that water-cooling pattern has reduced electron gun that influences such as electrode voltage, cause operating efficiency to reduce.And solder joint is more on the rifle core water route, and the destruction vacuum thereby the at high temperature easy crackle of these solder joints leaks can cause a lot of parts oxidation damage of rifle in-core when serious.Therefore, for fear of the defective of above water-cooling pattern, select adopting air-cooled mode that electron gun rifle core is cooled off is a trend in the industry.But if adopt air cooling way,, then need the air-cooled structure of electron gun rifle core is proposed to be strict with, otherwise can not cause cooling effect good and occur revealing or the parts sintering waits the generation of phenomenon together because air-cooled effect does not have the effective of water-cooled.
In general, during electron gun work, the filament fixed block of filament and anchored filament all can be under the high temperature (more than 2000 ℃), if the structural design of filament fixed block is unreasonable, then the most obviously can cause electron gun filament consuming time longer fixedly the time, reduce operating efficiency, increased working strength of workers; What more can not make us tolerating be that the filament that is fixed is not to be in " nature ", but be in a kind of " stress state ", in hot operation, " smooth ", power are big inadequately and the life-span is shorter for the beam shapes of drawing to such an extent as to filament distorts, even can not draw problem such as electron beam.Therefore, anchored filament how fast, and make that filament is indeformable under the condition of high temperature, non-warping then to become the knotty problem that the electron gun expert will overcome in the industry.
Along with the increase of electron gun power, the main high tension voltage value of the electron gun of design is then strengthening, and the class of insulation of corresponding electron gun then requires more and more higher accordingly, and therefore how avoiding electrion also is the knotty problem that all runs into of the same trade.
In addition,, during Installation and Debugging, bring the very big line difficulty that disconnects then can for Installation and Debugging or user of service, can cause phenomenons such as electrion simultaneously if three electrode design on the electron gun rifle core are unreasonable because three high-tension cables of electron gun are thicker.
Summary of the invention
The purpose of this utility model provides the structure-improved of a kind of high-power (the maximum stable operating power can reach 800kw) electron gun rifle core, its improvement can make the steady operation power of existing electron gun increase, air-cooled cooling structure is more reasonable, filament is installed more quick, burn-out life is longer, the rifle core performance is more stable, high-voltage cable easier for installation.
For achieving the above object, the utility model is taked following design:
A kind of rifle core of great-power electronic rifle, comprise: a rifle core body, the electron source of its emitting electrons is made up of bunching electrode, cathode assembly, negative electrode fixed block, filament and filament fixed block, and wherein cathode block is connected with three electrode terminals of rifle core respectively by filament fixed block unit with filament; Be an anode below the rifle core, its negative electrode with electron gun rifle core forms the electron emissive system of electron gun; One heat-sink unit, include the periphery of part that filament is connected be equipped with on radiator, the periphery of part that is connected with the negative electrode following radiator and the guide ring that are equipped with, between upper and lower radiator, establish insulating cylinder; One cooling unit is located at rifle core body periphery; Above-mentioned each assembly of elements is structured on the porcelain seat matrix; Described filament is peripherally equipped with the inner cover that is used for the bombarding current pack; Described cooling unit is an air-cooled cooling unit, be included in the safety guard that the outside of rifle core is added with, a blower fan is installed on safety guard, is utilized described safety guard, one group of ventilating duct to reach the cover member that outside cathode assembly, is equipped with and around rifle core body, enclose the structure cooling air duct jointly.
The upper and lower radiator of described heat-sink unit is radial web pattern.
With the junction of filament fixed block, compress filament with screw by a middle pressing plate.
The longitudinal wall profile undulate structure of porcelain seat.
Three rifle core electrodes that are used for being connected with high-tension cable all adopt the horizontal direction setting, and perforate on ventilating duct.
The utility model has the advantages that:
1. by electron gun rifle core filament periphery is added an inner cover that is used for the bombarding current pack, thereby useful life of filament is prolonged and the size decreases of cathode block, the intercepting and capturing electric current diminishes;
2. well-designed by the structure of filament fixed block is carried out, reduced the filament set-up time greatly, improve operating efficiency and reduced labor strength; Prolonged the life-span of filament, rifle core service behaviour is more stable;
3. designed rational more air-cooled passage, it is smooth more to ventilate, and its structure is compact more simple, and good cooling results can satisfy 800kw electron gun rifle core operate as normal;
4. improve by structure, improved the class of insulation of rifle core, reduced the electrion phenomenon greatly the matrix porcelain seat of rifle core;
5. the change of electrode connecting line structure brings great convenience to Installation and Debugging and to have reduced labour intensity.
Description of drawings
Fig. 1 is the utility model great-power electronic rifle rifle cored structure schematic diagram.
Fig. 2 is radiator (the last or following) structural representation of this great-power electronic rifle rifle core.
Wherein: 1A, 1B and 1C-electrode terminal, 2-heating panel, 3-top electrode seat, the last ventilating duct of 4-, electrode tip holder among the 5-, the last ventilating duct of 6-, the last radiator of 7-, 8-insulating cylinder, the 9-electrode tip holder, ventilating duct under the 10-, radiator under the 11-, 12-porcelain seat, the 13-radome, 14-ion trap, 15-filament fixed block, 16-inner cover, the 17-cover member, 18-filament, 19-hold-down ring, the 20-negative electrode, 21-bunching electrode, 22-anode.
The present invention is described further below in conjunction with drawings and the specific embodiments.
Embodiment
Fig. 1 shows rifle core one example structure of the utility model great-power electronic rifle, and wherein, the rifle core of the utility model electron gun is the electron emissive system that has been made of electron gun negative electrode 20, hold-down ring 19, bunching electrode 21, inner cover 16, filament 18 and anode 22.Filament 18 forms a loop by related components such as filament fixed block 15 and two binding post 1a above the rifle core and 1b, negative electrode 20 is connected with nethermost binding post 1 by outer cover part, thereby make negative electrode 20 and filament 18 form secondary high tension loop, anode 22 is connected with the earth, and itself and negative electrode 20 form main high tension loop.The periphery of part that is connected with filament 18 is equipped with radiator 7, at last radiator 7 ventilating duct 6 is housed; The periphery of part that is connected with negative electrode 20 is equipped with down radiator 11, on the radiator 11 ventilating duct 10 down is being housed down.
Important improvement point of the present utility model is: at the inner cover 16 that is used for the bombarding current pack that is peripherally equipped with of filament, prolonged the useful life of filament, improved the service efficiency of electron beam furnace.The design principle of general cathodes heated indirectly by an el utilization is: when the rifle core was worked, the electronics that overflow on the filament surface flew to negative electrode 20 under the effect of secondary high-voltage electrostatic field, form anticathode electron bombard, thereby finished anticathode heating function.But the phenomenon that then can occur dispersing in the process of electronics this range transmission between filament and negative electrode, thereby a part of electron bombard that causes the filament emission is outside negative electrode 20, this phenomenon has caused the idle work of rifle core to increase on the one hand, the temperature of rifle core raises, and then the sealing of rifle core had higher requirement, otherwise cause rifle core (particularly great-power electronic rifle rifle core) gas leakage not work when serious; Caused the power that bombards on the negative electrode not enough on the other hand, caused the cathode temperature of rifle core lower, can not reach the temperature requirement that electronics overflows from cathode surface, thereby can't draw electron beam; Last aspect is: the temperature that has improved filament in order to solve the problem of can not drawing electron beam, but along with the raising of filament temperature, then obviously descend the useful life of filament, thus frequent replacing filament has caused the operating efficiency of electron beam furnace to reduce.Added that in the periphery of filament the serviceability of electron gun rifle core is improved greatly after the inner cover 16, because inner cover 16 and filament are on same potential, fly to from filament the process of negative electrode at electronics, 16 bunching actions of playing bombarding current of inner cover, thus avoided the generation of above-mentioned phenomenon.It is simple in structure, but effect is obvious.
Another important improvement point of the present utility model is: the structure of filament fixed block 15 and the fixed form of filament are improved.The filament mode of being fixed and clamped that is adopted before not improving is to adopt a screw directly to compress filament, adopt this mode to make filament when being fixed and clamped, be in " stress " state, when electron gun is worked, the filament fixed block of filament and anchored filament all can be under the high temperature (more than 2000 ℃), in hot operation, filament is torsional deformation then, causes bombarding current undesirable, and burn-out life is short.Now by on the basis of original structure, adding a pressing plate, thereby make filament be in " nature " when screw is rotated tightening, be not subjected to stress, improved the useful life of filament greatly, improved the operating efficiency of electron beam furnace accordingly, and the power of the bombarding cathode piece that is consumed when producing the electron beam of same watt level reduces greatly, thereby makes the sealing effectiveness of rifle core better.
Another important improvement point of the present utility model is: the cooling structure to electron gun rifle core improves.The wind direction of blower fan as shown in Figure 1, along the rifle wire mandrel rifle core is dried from top to bottom, at first through having the heating panel 2 of mesh, most of afterwards air communication cross ventilating duct 4(its mainly act on be make flow air as much as possible at the rifle core body the air channel or the slit in pass, can under the onesize situation of power of fan, realize better cooling effect like this) enter radiator 7, last radiator 7 is disc shape shape and structures, as shown in Figure 2, air-flow flows through between per two disc, and the outermost cylinder of disc has played the effect of ventilating duct.Air-flow from radiator 7 enter ventilating duct 10 and radiator 11 down down after coming out again, same, the structure of following radiator 11 also can be designed to same version with last radiator 7, is the structure of a disc shape shape.Air communication has played good cooling effect to the rifle core after crossing two groups of ventilating ducts and radiator, has satisfied the cooling requirement of great-power electronic rifle rifle core, has solved the not good drawback of air cooling effect, has more avoided many defectives of water-cooled.
Another improvement of the present utility model is: by being the porcelain seat to rifle core print seat 12() improvement of structure is improved the class of insulation of rifle core.Increasing along with electron gun power, the voltage of main high voltage source also improves accordingly, correspondingly the class of insulation of electron gun rifle core is also had higher requirement, this rifle core makes the edge of rifle core print seat adopt wavy shaped configuration, insulated lengths has extended, thereby make the class of insulation improve the electrion phenomenon when having avoided high power work.
Improvement of the present utility model also has: as shown in Figure 1, three electrodes (binding post) of rifle core all adopt horizontal direction, and perforate on ventilating duct.The variation of this structure its objective is that making three thicker high-tension cables directly enter the rifle cover from three entrance holes of rifle cover with " nature " is connected with three electrodes, the labour intensity that had both reduced the Installation and Debugging personnel has been saved the time, and has avoided bad phenomenon such as electrion.
The various embodiments described above can not break away under the scope of the present utility model in addition some variations, thus above explanation comprises and accompanying drawing shown in structure should be considered as exemplary, but not in order to limit claim of the present utility model.
Claims (5)
1. great-power electronic rifle rifle core comprises:
One rifle core body, the electron source of its emitting electrons is made up of bunching electrode, cathode assembly, negative electrode fixed block, filament and filament fixed block, and wherein cathode block is connected with three electrode terminals of rifle core respectively by filament fixed block unit with filament; Be an anode below the rifle core, its negative electrode with electron gun rifle core forms the electron emissive system of electron gun;
One heat-sink unit, include the periphery of part that filament is connected be equipped with on radiator, the periphery of part that is connected with the negative electrode following radiator and the guide ring that are equipped with, between upper and lower radiator, establish insulating cylinder;
One cooling unit is located at rifle core body periphery;
Above-mentioned each assembly of elements is structured on the porcelain seat matrix;
It is characterized in that:
Described filament is peripherally equipped with the inner cover that is used for the bombarding current pack;
Described cooling unit is an air-cooled cooling unit, be included in the safety guard that the outside of rifle core is added with, a blower fan is installed on safety guard, is utilized described safety guard, one group of ventilating duct to reach the cover member that outside cathode assembly, is equipped with and around rifle core body, enclose the structure cooling air duct jointly.
2. great-power electronic rifle rifle core according to claim 1, it is characterized in that: the upper and lower radiator of described heat-sink unit is radial web pattern.
3. great-power electronic rifle rifle core according to claim 1 is characterized in that: with the junction of filament fixed block, compress filament with screw by a middle pressing plate.
4. great-power electronic rifle rifle core according to claim 1 is characterized in that: the longitudinal wall profile undulate structure of porcelain seat.
5. great-power electronic rifle rifle core according to claim 1 is characterized in that: three rifle core electrode binding posts that are used for being connected with high-tension cable all adopt the horizontal direction setting, and perforate on ventilating duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206857218U CN201904299U (en) | 2010-12-29 | 2010-12-29 | Gun core for high-power electronic gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206857218U CN201904299U (en) | 2010-12-29 | 2010-12-29 | Gun core for high-power electronic gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904299U true CN201904299U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206857218U Expired - Lifetime CN201904299U (en) | 2010-12-29 | 2010-12-29 | Gun core for high-power electronic gun |
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| Country | Link |
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| CN (1) | CN201904299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414732A (en) * | 2015-12-23 | 2016-03-23 | 哈尔滨工业大学（威海） | Multi-cathode electronic gun device |
| CN109030518A (en) * | 2018-06-04 | 2018-12-18 | 西安交通大学 | A kind of alternative electron source causing desorption yield test device suitable for electronics |
-
2010
- 2010-12-29 CN CN2010206857218U patent/CN201904299U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414732A (en) * | 2015-12-23 | 2016-03-23 | 哈尔滨工业大学（威海） | Multi-cathode electronic gun device |
| CN109030518A (en) * | 2018-06-04 | 2018-12-18 | 西安交通大学 | A kind of alternative electron source causing desorption yield test device suitable for electronics |
| CN109030518B (en) * | 2018-06-04 | 2020-04-28 | 西安交通大学 | Replaceable electron source suitable for electron desorption yield testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190621 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing Patentee before: General Research Institute for Nonferrous Metals |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |