CN211125561U - Miniaturized integral type porcelain electron gun of high accuracy - Google Patents
Miniaturized integral type porcelain electron gun of high accuracy Download PDFInfo
- Publication number
- CN211125561U CN211125561U CN201921622492.2U CN201921622492U CN211125561U CN 211125561 U CN211125561 U CN 211125561U CN 201921622492 U CN201921622492 U CN 201921622492U CN 211125561 U CN211125561 U CN 211125561U
- Authority
- CN
- China
- Prior art keywords
- anode
- cathode
- electron gun
- assembly
- supporting cylinder
- 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.)
- Active
Links
Images
Landscapes
- Microwave Tubes (AREA)
Abstract
The utility model discloses an electron gun, which comprises a metal electron gun shell (1), an integrated porcelain structure (2) arranged in the metal electron gun shell (1), a rear cover combination (16) arranged at the bottom end of the metal electron gun shell (1), a gun core component, a beam-gathering electrode (12), an anode I (13) and an anode II (14) which are arranged in the integrated porcelain structure (2); the gun core assembly is welded on the integrated porcelain structure (2) through the cathode sealing ring (8), the bunching electrode (12) is welded on the integrated porcelain structure (2) through the bunching electrode sealing ring (9), the anode I (13) is welded on the integrated porcelain structure (2) through the anode I sealing ring (10), and the anode II (14) is welded on the integrated porcelain structure (2) through the anode II sealing ring (11). The utility model has the advantages of reasonable design, the precision is high, and is small, has excellent pressure resistance, and is longe-lived, can satisfy the assembly requirement of the miniaturized travelling wave tube of Ka wave band.
Description
Technical Field
The utility model relates to a travelling wave tube, concretely relates to miniaturized integral type porcelain electron gun of high accuracy that travelling wave pipe was used.
Background
The low-orbit high-speed mobile communication satellite engineering basically realizes the access of broadband internet covering the whole world through the in-orbit operation of networking satellites, and can realize the communication smoothness between the internet and the outside no matter in sea areas, unmanned islands and airplanes after the construction is finished. The Ka-band space traveling wave tube carried on the satellite needs to have the characteristics of high efficiency, low weight and long service life, in order to ensure the deployment of the low-orbit communication satellite networking satellite, a user puts high requirements on the number and the performance of the traveling wave tubes, and the difficulty in developing the low-orbit space traveling wave tube is high.
In order to meet the rapid development of the demand and realize the autonomous control of key technologies and weapons, it is necessary to develop a miniaturized Ka-band traveling wave tube. The electron gun structure is an important component of a miniaturized Ka-band traveling wave tube.
Therefore, the Ka-band traveling wave tube is suitable for being matched with a low-orbit mobile communication satellite Ka-band traveling wave tube, and has the characteristics of small size, simple assembly process, good structural strength, strong environmental adaptability, high reliability and long service life.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a small in size, structural design is reasonable, each electrode concentricity and axial distance satisfy the requirement, the assembly is simple is fit for mass production, 100000 hours long-life, highly reliable electron gun, can satisfy the development demand of the miniaturized serial travelling wave tube of Ka wave band.
The technical scheme is as follows: in order to realize the above purpose, the utility model discloses the technical scheme who takes does:
the utility model provides a miniaturized integral type porcelain electron gun of high accuracy, it includes: the device comprises a metal electron gun shell, an integrated porcelain structure arranged inside the metal electron gun shell, a rear cover assembly arranged at the bottom end of the metal electron gun shell, and a gun core assembly, a bunching electrode, a first anode and a second anode which are arranged in the integrated porcelain structure; the gun core assembly is welded on the integrated ceramic structure through the cathode sealing ring, the beam bunching electrode is welded on the integrated ceramic structure through the beam bunching electrode sealing ring, the anode I is welded on the integrated ceramic structure through the anode I sealing ring, and the anode II is welded on the integrated ceramic structure through the anode II sealing ring; the beam-focusing pole is positioned above the gun core component, the first anode is positioned above the beam-focusing pole, and the second anode is positioned above the first anode;
the gun core assembly comprises a cathode assembly, a supporting cylinder cone, a supporting cylinder straight part, a supporting cylinder step and a hot wire porcelain seat assembly; the cathode assembly is arranged on a supporting cylinder cone, the supporting cylinder cone is arranged on a supporting cylinder straight, the supporting cylinder straight is arranged on a supporting cylinder step, and the hot wire ceramic base assembly is arranged on the supporting cylinder step;
the cathode assembly comprises a cathode, a hot wire, a cathode cylinder and a cathode supporting cylinder; the cathode is welded on the cathode cylinder, the hot wire is encapsulated in the cathode cylinder, and the cathode cylinder is welded with the cathode supporting cylinder;
and the lead of the beam-bunching electrode sealing ring penetrates through the rear cover assembly and then is connected to the lead post of the electron gun.
Preferably, the high-precision miniaturized integrated ceramic electron gun is characterized in that an exhaust pipe assembly is arranged on the side surface of the shell of the metal electron gun.
Preferably, in the high-precision miniaturized integrated ceramic electron gun, the back cover ceramic in the back cover assembly is provided with a groove capable of enhancing the insulating property between the electrodes.
The high-precision miniaturized integrated ceramic electron gun adopts a focusing electrode for control and adopts a film-coated impregnated barium-tungsten cathode. The utility model discloses utilize CAD technique to optimize high convergence electron beam design and high strength magnetic field, analysis electron optical system's characteristic reduces the electron interception of slow wave system. The shape and the laminar flow property of the electron beam are improved, a high-performance electron optical system with good laminar flow property and small pulsation is ensured, and the electron interception of a slow-wave system is reduced.
Adopt metal electron gun shell and integral type porcelain, more conventional multilayer porcelain ring and sealing ring stack the welding, can effectively less electron gun whole mass volume and the risk of welding gas leakage. The utility model discloses can reduce the length and the diameter of a support section of thick bamboo step, strengthen mechanical strength. The length of the gun core assembly can be reduced, and the welding concentricity and the reliability of the gun core assembly are improved. The application of the hot wire porcelain seat component can shorten the length of the lead wire of the filament and improve the reliability of the hot wire component.
The utility model discloses a negative pole sealing ring, bunch utmost point sealing ring, positive pole one sealing ring and two sealing ring flush welds of positive pole on integrative pottery, are favorable to hou mian electron gun assembly and secondary operation to no gas leakage risk can improve the welded qualification rate, and the electrode lead wire all is unsettled processing, and the integral type porcelain is whole inside metal electron gun shell, can strengthen the insulation between the electrode.
The utility model discloses the blast pipe subassembly changes the side blast pipe subassembly into, and mode before, reducible length optimizes the degree of difficulty that the calandria was cut in the later stage.
The use of integral type porcelain can improve the insulating nature when less size weight, guarantees the assembly precision, improves the reliability to reduce the degree of difficulty of assembly.
Has the advantages that: the utility model provides a miniaturized integral type porcelain electron gun of high accuracy compares with prior art and has following advantage:
the utility model provides a miniaturized integral type porcelain electron gun of high accuracy, structural design is reasonable, and the electron gun concentricity is within 0.01mm, and the axial distance precision is within 0.01 mm. By using the integrated ceramic electron gun structure, the reliability of the work of the electron gun is improved, and the ignition and air leakage probability of the product is greatly reduced. The length and the volume of the gun core can be reduced, the heat preservation effect of the hot wire is enhanced, the assembly precision is optimized, and the mechanical reliability is improved. The scheme of arranging the exhaust pipe on the side surface can improve the difficulty of shearing the exhaust pipe in the later period. The utility model discloses can shorten electron gun part length from 42.8mm to 33 mm.
Drawings
Fig. 1 is the utility model provides a miniaturized integral type porcelain electron gun's of high accuracy schematic diagram.
Fig. 2 is the structure schematic diagram of the integrated porcelain when looking down.
Fig. 3 is a schematic structural diagram of a cross section of the integrated porcelain of the present invention.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
Example 1
As shown in fig. 1 to 3, a metal electron gun housing 1, an integrated porcelain structure 2 installed inside the metal electron gun housing 1, a rear cover assembly 16 installed at the bottom end of the metal electron gun housing 1, a gun core assembly installed inside the integrated porcelain structure 2, a beam focusing electrode 12, a first anode 13 and a second anode 14; the gun core assembly is welded on the integrated porcelain structure 2 through a cathode sealing ring 8, the beam bunching electrode 12 is welded on the integrated porcelain structure 2 through a beam bunching electrode sealing ring 9, the anode I13 is welded on the integrated porcelain structure 2 through an anode I sealing ring 10, and the anode II 14 is welded on the integrated porcelain structure 2 through an anode II sealing ring 11; the beam-focusing electrode 12 is positioned above the gun core assembly, the anode I13 is positioned above the beam-focusing electrode 12, and the anode II 14 is positioned above the anode I13;
the gun core assembly comprises a cathode assembly 3, a supporting cylinder cone 4, a supporting cylinder straight 5, a supporting cylinder step 6 and a hot wire porcelain seat assembly 7; the cathode assembly 3 is arranged on a supporting cylinder cone 4, the supporting cylinder cone 4 is arranged on a supporting cylinder straight 5, the supporting cylinder straight 5 is arranged on a supporting cylinder step 6, and a hot wire porcelain seat assembly 7 is arranged on the supporting cylinder step 6;
the cathode assembly 3 comprises a cathode, a hot wire, a cathode cylinder and a cathode supporting cylinder; the cathode is welded on the cathode cylinder, the hot wire is encapsulated in the cathode cylinder, and the cathode cylinder is welded with the cathode supporting cylinder;
the anode sealing ring 10, the anode sealing ring 11 and the hot wire, the lead of the beam bunching electrode sealing ring 9 is connected to the electron gun lead post 17 after passing through the rear cover assembly 16.
The side surface of the metal electron gun shell 1 is provided with an exhaust pipe assembly 15. The back cover porcelain in the back cover combination 16 is provided with a groove which can strengthen the insulation performance between the electrodes.
The utility model provides a pair of miniaturized integral type porcelain electron gun of high accuracy can realize project Ka wave band, and bandwidth 0.4GHz, work ratio 100%, output 55W, gain 40 dB-50 dB, efficiency 60%, weight 350g, the application demand of overall dimension 200mm × 40mm × 45mm (do not contain defeated energy system) series travelling wave tube product.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a miniaturized integral type porcelain electron gun of high accuracy which characterized in that, it includes: the device comprises a metal electron gun shell (1), an integrated porcelain structure (2) arranged in the metal electron gun shell (1), a rear cover combination (16) arranged at the bottom end of the metal electron gun shell (1), and a gun core assembly, a beam focusing electrode (12), a first anode (13) and a second anode (14) which are arranged in the integrated porcelain structure (2); the gun core assembly is welded on the integrated porcelain structure (2) through a cathode sealing ring (8), the beam convergence electrode (12) is welded on the integrated porcelain structure (2) through a beam convergence electrode sealing ring (9), the anode I (13) is welded on the integrated porcelain structure (2) through an anode I sealing ring (10), and the anode II (14) is welded on the integrated porcelain structure (2) through an anode II sealing ring (11); the beam-focusing electrode (12) is positioned above the gun core assembly, the anode I (13) is positioned above the beam-focusing electrode (12), and the anode II (14) is positioned above the anode I (13);
the gun core assembly comprises a cathode assembly (3), a supporting cylinder cone (4), a supporting cylinder straight body (5), a supporting cylinder step (6) and a hot wire porcelain seat assembly (7); the cathode assembly (3) is arranged on a supporting cylinder cone (4), the supporting cylinder cone (4) is arranged on a supporting cylinder straight (5), the supporting cylinder straight (5) is arranged on a supporting cylinder step (6), and the hot wire ceramic base assembly (7) is arranged on the supporting cylinder step (6);
the cathode assembly (3) comprises a cathode, a hot wire, a cathode cylinder and a cathode supporting cylinder; the cathode is welded on the cathode cylinder, the hot wire is encapsulated in the cathode cylinder, and the cathode cylinder and the cathode supporting cylinder are mutually welded;
the anode sealing ring (10), the anode sealing ring (11) and the hot wire, wherein the lead of the bunching electrode sealing ring (9) penetrates through the rear cover assembly (16) and then is connected to the electron gun lead post (17).
2. A high-precision miniaturized integrated porcelain electron gun as claimed in claim 1, wherein said metal electron gun housing (1) is provided with an exhaust pipe assembly (15) at its side.
3. A high-precision miniaturized integrated porcelain electron gun as claimed in claim 1, wherein the back cover porcelain in the back cover assembly (16) is provided with grooves for enhancing the insulation between the electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622492.2U CN211125561U (en) | 2019-09-27 | 2019-09-27 | Miniaturized integral type porcelain electron gun of high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622492.2U CN211125561U (en) | 2019-09-27 | 2019-09-27 | Miniaturized integral type porcelain electron gun of high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211125561U true CN211125561U (en) | 2020-07-28 |
Family
ID=71702891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921622492.2U Active CN211125561U (en) | 2019-09-27 | 2019-09-27 | Miniaturized integral type porcelain electron gun of high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211125561U (en) |
-
2019
- 2019-09-27 CN CN201921622492.2U patent/CN211125561U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201877391U (en) | Millimeter wave travelling wave tube electron gun structure | |
| CN106887371B (en) | The highly reliable space travelling wave tube of L-band B1 frequency ranges | |
| CN105047508B (en) | L-band high efficiency, high linearity space travelling wave tube | |
| CN102522298B (en) | Oval sheet beam electron gun | |
| CN110620028B (en) | Miniaturized and light Ka-band space traveling wave tube | |
| CN101447384A (en) | Multi-level depressurization collector for traveling wave tube | |
| CN106803473A (en) | A kind of 0.34THz travelling-wave tubes | |
| CN211125561U (en) | Miniaturized integral type porcelain electron gun of high accuracy | |
| JPS6398938A (en) | Magnetron | |
| CN112837981B (en) | Ka-band high-efficiency light-weight space traveling wave tube | |
| CN202076224U (en) | Traveling wave tube structure for microwave power module | |
| CN210837642U (en) | Miniaturized, light-weight and efficient four-stage depressed collector | |
| CN112151342A (en) | Magnetron based on gigawatt high-power microwave source hard tube and permanent magnet package | |
| CN205609471U (en) | Electron and ionic plasma source | |
| CN201893313U (en) | Positive pole control electron gun applied in millimeter-wave travelling wave tube | |
| CN102054645B (en) | Wideband traveling wave tube slow wave system and fabrication method thereof | |
| CN209216912U (en) | A kind of miniaturized electron gun | |
| CN107204265B (en) | Lead interior crossing type multi-level depressurization collector | |
| CN210837643U (en) | High-reliability, anti-ignition and long-service-life electron gun | |
| US3466493A (en) | Circuit sever for ppm focused traveling wave tubes | |
| CN111769023B (en) | W-band continuous wave traveling wave tube | |
| CN110767518B (en) | Long-life, high-efficiency and low-distortion L-waveband space traveling wave tube for navigation satellite | |
| CN204029758U (en) | A kind of grid-control Multi-Beam electron Gun | |
| CN201717230U (en) | Anode control electron gun structure for space traveling wave tube | |
| CN102637565A (en) | Cathode for rod-controlled microwave tube and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |