CN205004299U - Control structure of electron gun - Google Patents
Control structure of electron gun Download PDFInfo
- Publication number
- CN205004299U CN205004299U CN201520606746.7U CN201520606746U CN205004299U CN 205004299 U CN205004299 U CN 205004299U CN 201520606746 U CN201520606746 U CN 201520606746U CN 205004299 U CN205004299 U CN 205004299U
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- China
- Prior art keywords
- ring
- fixed
- cathode assembly
- adapter ring
- control structure
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- Expired - Fee Related
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- 238000010894 electron beam technology Methods 0.000 claims abstract description 9
- 229910052573 porcelain Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Electron Sources, Ion Sources (AREA)
Abstract
The utility model discloses a control structure of electron gun, this control structure includes cathode assembly (1), fixed establishment, control grid (12), focus ring (9) and shadow grid (10), control grid (12), focus ring (9) and shadow grid (10) are fixed in fixed establishment is last, just control grid (12), focus ring (9) and shadow grid (10) set up in the opening part of cathode assembly (1) is just followed the transmission direction of electron beam and is arranged in proper order, fixed establishment fixed and cup joint in the lateral surface of cathode assembly (1). This control structure of electron gun can provide big operating current under little control voltage and high negative pole operating voltage, also can realize the electron gun control structure of the good focus of electron beam.
Description
Technical field
The utility model relates to the control pole of travelling wave tube electron gun, particularly, relates to a kind of control structure of electron gun.
Background technology
Travelling wave tube, as vacuum microwave power amplifying device, has the advantages such as bandwidth, gain is large, efficiency is high, power output is large, has a wide range of applications, be described as " heart " of weaponry in all kinds of military microwave transmitter.
Controlling the load of pole power supply to reduce travelling wave tube, is all the operating voltages reducing to control power supply usually; And for the travelling wave tube of high cathode voltage, large operating current, after meeting above-mentioned requirements, the focusing of electron beam is difficult to realize.
Utility model content
The purpose of this utility model is to provide a kind of control structure of electron gun, the control structure of this electron gun can provide large operating current under little control voltage and high cathode operating voltage, also can realize the electron gun control structure of the well focussed of electron beam.
To achieve these goals, the utility model provides a kind of control structure of electron gun, this control structure comprises cathode assembly, fixed mechanism, control gate, focusing ring and shadow grid, described control gate, focusing ring and shadow grid are fixed on described fixed mechanism, and described control gate, focusing ring and shadow grid are arranged at the opening part of described cathode assembly, and arrange successively along the direction of transfer of electron beam, described fixed mechanism is fixed and is socketed on the lateral surface of described cathode assembly.
Preferably, described fixed mechanism comprise be socketed on described cathode assembly with lower component:
Strutting piece, the medial surface of described strutting piece is fixed on the lateral surface of described cathode assembly, with fixing described cathode assembly;
Second heat shielding, the first end of described second heat shielding is fixed on the lateral surface of described strutting piece, and the second end of described second heat shielding towards described cathode assembly opening towards direction extend abreast;
4th adapter ring, described 4th adapter ring is fixed in the second end of described second heat shielding;
Shadow grid support, described shadow grid support installing on described 4th adapter ring, and supports described shadow grid;
Second strengthens ring, and described second strengthens ring is fixed in described control gate, to strengthen the intensity of described control gate;
3rd adapter ring, described 3rd adapter ring is fixed in described second and strengthens ring;
First heat shielding, the first end of described first heat shielding is fixed in described 3rd adapter ring, and described first heat shielding second end towards away from described cathode assembly opening towards direction extend abreast, described first heat shielding is placed on the outside of described second heat shielding;
Adapter ring assembly, one end of described adapter ring assembly is fixed in the second end of described first heat shielding, and the other end is fixed on the lateral surface of described strutting piece;
Focusing ring fixture, one end of described focusing ring fixture is fixed in described 3rd adapter ring, the other end towards described cathode assembly opening towards direction extend abreast, and be fixed in described focusing ring.
Preferably, described adapter ring assembly comprises: the second adapter ring and the first adapter ring, the lateral surface of described second adapter ring is fixed in the second end of described first heat shielding, and the medial surface of described second adapter ring is fixed in one end of described first adapter ring, the other end of described first adapter ring towards described cathode assembly opening towards direction extend abreast, and to be fixed on the lateral surface of described strutting piece.
Preferably, described focusing ring fixture comprises: special-shaped ring and porcelain ring, one end of described special-shaped ring is fixed in described 3rd adapter ring, the other end is fixed in one end of described magnet ring, the other end of described magnet ring towards described cathode assembly opening towards direction extend abreast, and be fixed in described focusing ring.
Preferably, two end faces of described porcelain ring are provided with metal level.
Preferably, this control structure also comprises: connecting rod, one end of described connecting rod towards described cathode assembly opening towards direction extend abreast, run through described 4th adapter ring respectively successively, shadow grid support, second strengthens ring and control gate, and in the blind hole shooting described focusing ring matched.
Preferably, the material of described shadow grid is molybdenum; The material of described control gate is oxygen-free copper.
Preferably, described focusing ring is identical with the current potential of described cathode assembly.
Preferably, described affixed for welding.
Preferably, the first enhancing ring is provided with between described shadow grid support and shadow grid.
By above-mentioned execution mode, the control structure of electron gun of the present utility model can realize controlling the well focussed of pole power supply with electron beam under little load, under the operating current that travelling wave tube is high and under high cathode operating voltage; Further, structure distribution of the present utility model is reasonable, is easy to make, is suitable for various equipment.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the concrete structure schematic diagram of the control structure of a kind of electron gun of preferred implementation of the present utility model.
Description of reference numerals
1 cathode assembly 2 first adapter ring
3 second adapter ring 4 strutting pieces
5 first heat shielding 6 the 3rd adapter rings
7 special-shaped ring 8 porcelain rings
9 focusing ring 10 shadow grids
11 first strengthen ring 12 control gate
13 second strengthen ring 14 shadow grid support
15 the 4th adapter ring 16 second heat shieldings
17 connecting rods
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to as shown in Figure 1 up and down.It is interior and outer that " inside and outside " refers on concrete profile.It is far away and near that " far away, near " refers to relative to certain parts.
The utility model provides a kind of control structure of electron gun, this control structure comprises cathode assembly 1, fixed mechanism, control gate 12, focusing ring 9 and shadow grid 10, described control gate 12, focusing ring 9 and shadow grid 10 are fixed on described fixed mechanism, and described control gate 12, focusing ring 9 and shadow grid 10 are arranged at the opening part of described cathode assembly 1, and arrange successively along the direction of transfer of electron beam, described fixed mechanism is fixed and is socketed on the lateral surface of described cathode assembly 1.
By above-mentioned execution mode, the control structure of electron gun of the present utility model can realize controlling the well focussed of pole power supply with electron beam under little load, under the operating current that travelling wave tube is high and under high cathode operating voltage; Further, structure distribution of the present utility model is reasonable, is easy to make, is suitable for various equipment.
Be further detailed below in conjunction with accompanying drawing 1 pair of the utility model, in the utility model, more stable in order to what located by cathode assembly 1, the following structure of special use realizes.
In a kind of embodiment of the present utility model, described fixed mechanism comprise be socketed on described cathode assembly 1 with lower component:
Strutting piece 4, the medial surface of described strutting piece 4 is fixed on the lateral surface of described cathode assembly 1, with fixing described cathode assembly 1; It is outer for supporting cathode assembly 1 that strutting piece 4 bag invests cathode assembly 1;
Second heat shielding 16, the first end of described second heat shielding 16 is fixed on the lateral surface of described strutting piece 4, and the second end of described second heat shielding 16 towards described cathode assembly 1 opening towards direction extend abreast; The radiation acting as minimizing cathode assembly 1 of the second heat shielding 16;
4th adapter ring 15, described 4th adapter ring 15 is fixed in the second end of described second heat shielding 16, to fix the second end of the second heat shielding 16;
Shadow grid support 14, described shadow grid support 14 is installed on described 4th adapter ring 15, for supporting described shadow grid 10;
Second strengthens ring 13, and described second strengthens ring 13 is fixed in described control gate 12, to strengthen the intensity of described control gate 12, prevents damage when in use;
3rd adapter ring 6, described 3rd adapter ring 6 is fixed in described second and strengthens ring 13, for fixing described second enhancing ring 13 of transferring;
First heat shielding 5, the first end of described first heat shielding 5 is fixed in described 3rd adapter ring 6, and described first heat shielding 5 second end towards away from described cathode assembly 1 opening towards direction extend abreast, described first heat shielding 5 is placed on the outside of described second heat shielding 16, further reduces the radiation of cathode assembly 1;
Adapter ring assembly, one end of described adapter ring assembly is fixed in the second end of described first heat shielding 5, and the other end is fixed on the lateral surface of described strutting piece 4;
Focusing ring 9 fixture, one end of described focusing ring 9 fixture is fixed in described 3rd adapter ring 6, the other end towards described cathode assembly 1 opening towards direction extend abreast, and be fixed in described focusing ring 9.
Concrete structure as shown in Figure 1, Fig. 1 is side cross-section schematic diagram of the present utility model, by above-mentioned concrete structure, that is fixed by pin components, control gate 12, focusing ring 9 and shadow grid 10 is more stable, and control gate 12, can be stable between focusing ring 9 and shadow grid 10 affixed, can't shake easily, add practicality of the present utility model.
In this kind of execution mode, described adapter ring assembly can comprise: the second adapter ring 3 and the first adapter ring 2, the lateral surface of described second adapter ring 3 is fixed in the second end of described first heat shielding 5, and the medial surface of described second adapter ring 3 is fixed in one end of described first adapter ring 2, the other end of described first adapter ring 2 towards described cathode assembly 1 opening towards direction extend abreast, and to be fixed on the lateral surface of described strutting piece 4.The fixing of the second end of the first heat shielding 5 is realized by above-mentioned adapter ring assembly.
In this kind of execution mode, described focusing ring 9 fixture can comprise: special-shaped ring 7 and porcelain ring 8, one end of described special-shaped ring 7 is fixed in described 3rd adapter ring 6, the other end is fixed in one end of described magnet ring, the other end of described magnet ring towards described cathode assembly 1 opening towards direction extend abreast, and be fixed in described focusing ring 9.Fixed the position of described focusing ring 9 by above-mentioned concrete mode, make focusing ring 9 more stable.
In this kind of execution mode, two end faces of described porcelain ring 8 are provided with metal level, are provided with the technological operation of the convenient welding of metal level.
In this kind of execution mode, this control structure can also comprise: connecting rod 17, one end of described connecting rod 17 towards described cathode assembly 1 opening towards direction extend abreast, run through described 4th adapter ring 15 respectively successively, shadow grid support 14, second strengthens ring 13 and control gate 12, and in the blind hole shooting described focusing ring 9 matched.By above-mentioned execution mode, the 4th adapter ring 15, shadow grid support 14, second enhancing ring 13 and control gate 12 is allowed to fix and can not move by connecting rod 17.
In this kind of execution mode, the material of described shadow grid 10 is molybdenum; The material of described control gate 12 is oxygen-free copper.
In this kind of execution mode, described focusing ring 9 is identical with the current potential of described cathode assembly 1.
In this kind of execution mode, described affixed for welding.
In this kind of execution mode, between described shadow grid support 14 and shadow grid 10, be provided with the first enhancing ring 11.By strengthening ring 11 weld with first, strengthen the intensity of shadow grid 10, and suppress the distortion of shadow grid 10.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection range of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the control structure of an electron gun, it is characterized in that, this control structure comprises cathode assembly (1), fixed mechanism, control gate (12), focusing ring (9) and shadow grid (10), described control gate (12), focusing ring (9) and shadow grid (10) are fixed on described fixed mechanism, and described control gate (12), focusing ring (9) and shadow grid (10) are arranged at the opening part of described cathode assembly (1), and arrange successively along the direction of transfer of electron beam, described fixed mechanism is fixed and is socketed on the lateral surface of described cathode assembly (1).
2. the control structure of electron gun according to claim 1, is characterized in that, described fixed mechanism comprise be socketed on described cathode assembly (1) with lower component:
Strutting piece (4), the medial surface of described strutting piece (4) is fixed on the lateral surface of described cathode assembly (1), with fixing described cathode assembly (1);
Second heat shielding (16), the first end of described second heat shielding (16) is fixed on the lateral surface of described strutting piece (4), and the second end of described second heat shielding (16) towards described cathode assembly (1) opening towards direction extend abreast;
4th adapter ring (15), described 4th adapter ring (15) is fixed in the second end of described second heat shielding (16);
Shadow grid support (14), described shadow grid support (14) is installed on described 4th adapter ring (15), and supports described shadow grid (10);
Second strengthens ring (13), and described second strengthens ring (13) is fixed in described control gate (12), to strengthen the intensity of described control gate (12);
3rd adapter ring (6), described 3rd adapter ring (6) is fixed in described second and strengthens ring (13);
First heat shielding (5), the first end of described first heat shielding (5) is fixed in described 3rd adapter ring (6), and described first heat shielding (5) second end towards away from described cathode assembly (1) opening towards direction extend abreast, described first heat shielding (5) is placed on the outside of described second heat shielding (16);
Adapter ring assembly, one end of described adapter ring assembly is fixed in the second end of described first heat shielding (5), and the other end is fixed on the lateral surface of described strutting piece (4);
Focusing ring (9) fixture, one end of described focusing ring (9) fixture is fixed in described 3rd adapter ring (6), the other end towards described cathode assembly (1) opening towards direction extend abreast, and be fixed in described focusing ring (9).
3. the control structure of electron gun according to claim 2, it is characterized in that, described adapter ring assembly comprises: the second adapter ring (3) and the first adapter ring (2), the lateral surface of described second adapter ring (3) is fixed in the second end of described first heat shielding (5), and the medial surface of described second adapter ring (3) is fixed in one end of described first adapter ring (2), the other end of described first adapter ring (2) towards described cathode assembly (1) opening towards direction extend abreast, and be fixed on the lateral surface of described strutting piece (4).
4. the control structure of electron gun according to claim 3, it is characterized in that, described focusing ring (9) fixture comprises: special-shaped ring (7) and porcelain ring (8), one end of described special-shaped ring (7) is fixed in described 3rd adapter ring (6), the other end is fixed in one end of described magnet ring, the other end of described magnet ring towards described cathode assembly (1) opening towards direction extend abreast, and be fixed in described focusing ring (9).
5. the control structure of electron gun according to claim 4, is characterized in that, two end faces of described porcelain ring (8) are provided with metal level.
6. the control structure of electron gun according to claim 4, it is characterized in that, this control structure also comprises: connecting rod (17), one end of described connecting rod (17) towards described cathode assembly (1) opening towards direction extend abreast, run through described 4th adapter ring (15) respectively successively, shadow grid support (14), second strengthens ring (13) and control gate (12), and in the blind hole shooting described focusing ring (9) matched.
7. the control structure of electron gun according to claim 1, is characterized in that, the material of described shadow grid (10) is molybdenum; The material of described control gate (12) is oxygen-free copper.
8. the control structure of electron gun according to claim 1, is characterized in that, described focusing ring (9) is identical with the current potential of described cathode assembly (1).
9., according to the control structure of the electron gun in claim 1-8 described in any one claim, it is characterized in that, described affixed for welding.
10. the control structure of electron gun according to claim 2, is characterized in that, is provided with the first enhancing ring (11) between described shadow grid support (14) and shadow grid (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606746.7U CN205004299U (en) | 2015-08-12 | 2015-08-12 | Control structure of electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606746.7U CN205004299U (en) | 2015-08-12 | 2015-08-12 | Control structure of electron gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004299U true CN205004299U (en) | 2016-01-27 |
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ID=55161177
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520606746.7U Expired - Fee Related CN205004299U (en) | 2015-08-12 | 2015-08-12 | Control structure of electron gun |
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| CN (1) | CN205004299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379690A (en) * | 2019-06-27 | 2019-10-25 | 电子科技大学 | Using the cold-cathode gun of RF excited field emission electron beam |
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2015
- 2015-08-12 CN CN201520606746.7U patent/CN205004299U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379690A (en) * | 2019-06-27 | 2019-10-25 | 电子科技大学 | Using the cold-cathode gun of RF excited field emission electron beam |
| CN110379690B (en) * | 2019-06-27 | 2020-09-25 | 电子科技大学 | Cold cathode electron gun using radio frequency excitation field to emit electron beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 |