CN102110565B - Electron gun frame for space travelling wave tube - Google Patents
Electron gun frame for space travelling wave tube Download PDFInfo
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- CN102110565B CN102110565B CN 200910243778 CN200910243778A CN102110565B CN 102110565 B CN102110565 B CN 102110565B CN 200910243778 CN200910243778 CN 200910243778 CN 200910243778 A CN200910243778 A CN 200910243778A CN 102110565 B CN102110565 B CN 102110565B
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Abstract
The invention discloses an electron gun frame for a space travelling wave tube. In the electron gun frame, four metal parts, namely a positioning member, an anode, a control electrode holder and a cathode holder, are fixed together by welding through an insulating ceramic column in sequence to form a frame-type structure; and when the electron gun frame is used, the anode, a control electrode and a cathode are fixed to corresponding metal holders of the frame respectively and are arranged in a sealed cavity together. Through the electron gun frame, the area of the polluted ceramic can be reduced, and the insulating pressure resistance and the reliability between the electrodes of an electron gun for the space travelling wave tube can be effectively improved.
Description
Technical field
The present invention relates to the electron gun of vacuum electron device, can improve the insulation property between the space travelling wave tube electron gun electrodes, especially can improve the reliability of space travelling wave tube electron gun.
Background technology
Vacuum electron device (like travelling wave tube, klystron, gyrotron etc.) is widely used for aspects such as satellite, navigator fix, military mapping, microwave remote sensing, electronic reconnaissance and antagonism, transfer of data; Be the irreplaceable important components and parts of dual-use technical field [list of references: Liao Fujiang chief editors; The heart of " vacuum electronic technology " (second edition) information weapon equipment; National Defense Industry Press, Beijing (2008)].
Vacuum electron device is meant in vacuum or gaseous medium, owing to electronics or ion produce the amplification of signal and the active device of transition effects in interelectrode transmission.Electron gun is the part that is used to provide the needed high energy electron of mutual effect in the vacuum electron device; Usually in electron gun, all be added with several kilovolts to tens kilovolts high pressure between each electrode, so the insulation property between each electrode directly influence the performance of vacuum electron device in the electron gun.Space travelling wave tube is as a kind of important vacuum electron device, because the particularity of its space environment for use reliability has been proposed very high requirement, and the insulation property between each electrode of electron gun is exactly the key factor that influences the electron gun reliability.General electron gun structure all is to adopt flat envelope ceramic ring between the metal electrode, guarantees vacuum leakproofness and insulation property.This structure, insulating ceramics are very big annulus, and the area that is polluted by sweat stain, finger mark, coin marking, oxide layer etc. is very big; And this structure makes the part pottery show to place among the atmosphere; Increase contaminated probability, be unfavorable for the insulation between the electrode, reduced reliability.
Summary of the invention
In order to improve the insulation property between each electrode of electron gun; The invention provides a kind of frame structure that is used for the space travelling wave tube electron gun; This frame-type electron gun can effectively reduce contaminated insulating ceramics area, improves insulation property and the reliability of electron gun between each electrode.
For realizing above-mentioned purpose, the electron gun framework that is used for space travelling wave tube provided by the invention is made up of upper frame and underframe two parts, wherein:
In the upper frame, six holes of three holes of six holes that are provided with keeper of homogeneous angular, anode and control utmost point keeper respectively on the circumferential edges of same diameter;
On the keeper three are mutually the end that 120 ° hole is separately fixed at three Gen Dingyang ceramics poles, and other three holes that are mutually 120 ° on the keeper are separately fixed at three ends of controlling ceramics pole surely;
Another end of three Gen Dingyang ceramics poles is separately fixed in three holes of anode;
Three another ends of controlling ceramics pole surely are separately fixed in three holes of control utmost point keeper;
Other three holes on the control utmost point keeper are as the through hole of anode tap;
Control utmost point keeper is provided with a hollow space;
In the underframe, six holes that are provided with control utmost point seat of homogeneous angular and six holes of cathode block respectively on the circumferential edges of same diameter;
Control utmost point seat is provided with the projection that matches with control utmost point keeper hollow space;
Three holes that are mutually 120 ° on the control utmost point seat fix with three ends of controlling cloudy ceramics poles respectively;
Three corresponding holes that are mutually 120 ° fix on the other end of three cloudy ceramics poles of control and the cathode block;
Remaining three holes are as the lead hole of anode with the control utmost point on control utmost point seat and the cathode block;
The projection that underframe is controlled utmost point seat is inserted in the hollow space of upper frame control utmost point keeper and is fixing, forms the electron gun framework; And the control utmost point seat of the keeper of upper frame, anode, control utmost point keeper and underframe, cathode block are parallel placement, insulate through ceramics pole therebetween;
Being parallel to each other is fixedly connected through three ceramics poles between keeper, anode, control utmost point keeper, control utmost point seat and the cathode block of placing, and three ceramics poles are distributed on same circumference.
In the described electron gun framework, the material of keeper, anode, control utmost point keeper, control utmost point seat and cathode block is Monel.
In the described electron gun framework, said ceramics pole is 95% or above aluminium oxide ceramics.
In the described electron gun framework, other three of being mutually on the end, keeper of 120 ° Kong Yusan Gen Dingyang ceramics pole of on the keeper three are mutually 120 ° Kong Yusan root and control three holes of three holes of another end and the anode of the end of ceramics pole, three Gen Dingyang ceramics poles, three another ends of controlling ceramics pole surely and control utmost point keeper surely and all adopt cover soldering and sealing to connect.
In the described electron gun framework, said welding is through the mould once-forming.
Electron gun framework of the present invention effectively raises the insulation property of space travelling wave tube electron gun, and tubulature test electron gun sparking number of times obviously reduces.
Description of drawings
Shown in Figure 1 for the cutaway view of upper frame of the present invention.
Shown in Figure 2 for the cutaway view of underframe of the present invention.
Shown in Figure 3 is the cutaway view of electron gun framework of the present invention
Among the figure: the 1-keeper, the 2-anode, the fixed positive ceramics pole of 3-, 4-is controlled ceramics pole surely, 5-control utmost point keeper, 6-control utmost point seat, 7-is controlled cloudy ceramics pole, the 8-cathode block, 9-electron gun end cap, 10-controls the utmost point, 11-cathode assembly, 12-electron gun sealing drum.
Embodiment
The technical scheme that the present invention adopted is: connect each electrode with ceramics pole, forms a frame structure, wait to accomplish after the assembling of each electrode of electron gun, and this framework placed in the chamber seal the preparation of completion electron gun.In framework up and down; Connect through three ceramics poles between each metal parts, three are distributed on the same circumference, and and metal parts separately between weld; Guarantee the concentric of each metal parts, also can guarantee mutual insulating between each metal parts.Simultaneously, after framework was placed in the vacuum-sealed cavity with the electron gun of accomplishing, ceramics pole placed among the vacuum fully, had avoided and the contacting of the external world, and reduced the contaminated probability of insulating ceramics, improved insulation property and reliability.
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
In the cutaway view of Fig. 1 upper frame, on the same direct circumference of keeper 1, anode 2, control utmost point keeper 5, be uniformly distributed with six holes, three holes and six holes respectively.Wherein, the end cover soldering and sealing that on the keeper 1 three are mutually 120 ° Kong Yusan Gen Dingyang ceramics pole 3 connect, and other three are mutually 120 ° Kong Yusan root and control the end cover soldering and sealing of ceramics pole 4 surely and connect.Three borehole jack soldering and sealing that another end of three Gen Dingyang ceramics poles 3 and anode are corresponding connect, and three another end three borehole jack soldering and sealing corresponding with controlling utmost point keeper of controlling ceramics pole 4 surely connect.Welding process is through the mould once-forming.Remaining three holes are as the through hole of anode 2 lead-in wires on the control utmost point keeper.The material of three metal partss is Monel in the upper frame, and 6 ceramics poles are 95% or above aluminium oxide ceramics.
In the profile of underframe shown in Figure 2, on the circumference of the same diameter of controlling utmost point seat 6 and cathode block 8, all be uniformly distributed with six holes.Three borehole jack seam welding that are mutually 120 ° on one end of three cloudy ceramics poles 7 of control and the control utmost point seat 6, three borehole jack seam welding that are mutually 120 ° of correspondence on the other end and the cathode block.Welding process is through the mould once-forming.Remaining three holes are as the lead hole of the anode and the control utmost point on control utmost point seat 6, the cathode block 8.The material of two metal partss in the underframe is a Monel, and three ceramics poles are 95% or above aluminium oxide ceramics.
In the electron gun framework cutaway view shown in Figure 3; After accomplishing the welding of upper frame and underframe; The projection of control utmost point seat 6 in the underframe is inserted in the upper frame control utmost point keeper 5, and the mode through spot welding makes control utmost point seat 6 closely link to each other the making of completion framework with control utmost point keeper 5.
Claims (5)
1. an electron gun framework that is used for space travelling wave tube is made up of upper frame and underframe two parts, wherein:
In the upper frame, six holes of three holes of six holes that are provided with keeper of homogeneous angular, anode and control utmost point keeper respectively on the circumferential edges of same diameter;
On the keeper three are mutually the end that 120 ° hole is separately fixed at three Gen Dingyang ceramics poles, and other three holes that are mutually 120 ° on the keeper are separately fixed at three ends of controlling ceramics pole surely;
Another end of three Gen Dingyang ceramics poles is separately fixed in three holes of anode;
Three another ends of controlling ceramics pole surely are separately fixed in three holes of control utmost point keeper;
Other three holes on the control utmost point keeper are as the through hole of anode tap;
Control utmost point keeper is provided with a hollow space;
In the underframe, six holes that are provided with control utmost point seat of homogeneous angular and six holes of cathode block respectively on the circumferential edges of same diameter;
Control utmost point seat is provided with the projection that matches with control utmost point keeper hollow space;
Three holes that are mutually 120 ° on the control utmost point seat fix with three ends of controlling cloudy ceramics poles respectively;
Three corresponding holes that are mutually 120 ° fix on the other end of three cloudy ceramics poles of control and the cathode block;
Remaining three holes are as the lead hole of anode with the control utmost point on control utmost point seat and the cathode block;
The projection that underframe is controlled utmost point seat is inserted in the hollow space of upper frame control utmost point keeper and is fixing, forms the electron gun framework; And the control utmost point seat of the keeper of upper frame, anode, control utmost point keeper and underframe, cathode block are parallel placement, insulate through ceramics pole therebetween;
Being parallel to each other is fixedly connected through three ceramics poles between keeper, anode, control utmost point keeper, control utmost point seat and the cathode block of placing, and three ceramics poles are distributed on same circumference.
2. electron gun framework as claimed in claim 1, wherein, the material of said keeper, anode, control utmost point keeper, control utmost point seat and cathode block is Monel.
3. electron gun framework as claimed in claim 1, wherein, said ceramics pole is 95% or above aluminium oxide ceramics.
4. electron gun framework as claimed in claim 1; Wherein, other three of being mutually on the end, keeper of 120 ° Kong Yusan Gen Dingyang ceramics pole of three on the said keeper are mutually 120 ° Kong Yusan root and control three holes of three holes of another end and the anode of the end of ceramics pole, three Gen Dingyang ceramics poles, three another ends of controlling ceramics pole surely and control utmost point keeper surely and all adopt cover soldering and sealing to connect.
5. electron gun framework as claimed in claim 4, wherein, said welding is through the mould once-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243778 CN102110565B (en) | 2009-12-24 | 2009-12-24 | Electron gun frame for space travelling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910243778 CN102110565B (en) | 2009-12-24 | 2009-12-24 | Electron gun frame for space travelling wave tube |
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| Publication Number | Publication Date |
|---|---|
| CN102110565A CN102110565A (en) | 2011-06-29 |
| CN102110565B true CN102110565B (en) | 2012-12-19 |
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| CN 200910243778 Active CN102110565B (en) | 2009-12-24 | 2009-12-24 | Electron gun frame for space travelling wave tube |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587812A (en) * | 2008-05-20 | 2009-11-25 | 三星电子株式会社 | Electron beam focusing electrode and electron gun using the same |
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2009
- 2009-12-24 CN CN 200910243778 patent/CN102110565B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587812A (en) * | 2008-05-20 | 2009-11-25 | 三星电子株式会社 | Electron beam focusing electrode and electron gun using the same |
Non-Patent Citations (1)
| Title |
|---|
| JP昭64-77823H0 1989.03.23 |
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| CN102110565A (en) | 2011-06-29 |
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