CN209216912U - A kind of miniaturized electron gun - Google Patents
A kind of miniaturized electron gun Download PDFInfo
- Publication number
- CN209216912U CN209216912U CN201821992742.7U CN201821992742U CN209216912U CN 209216912 U CN209216912 U CN 209216912U CN 201821992742 U CN201821992742 U CN 201821992742U CN 209216912 U CN209216912 U CN 209216912U
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- China
- Prior art keywords
- porcelain cylinder
- cylinder
- support tube
- rear cover
- focusing electrode
- Prior art date
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Abstract
The utility model discloses a kind of miniaturized electron guns, it includes magnetic cup positioning ring (8), the big porcelain cylinder (4) being mounted on magnetic cup positioning ring (8), the focusing electrode support tube (2) being mounted in big porcelain cylinder (4), the middle porcelain cylinder (3) being mounted on focusing electrode support tube (2) and the rear cover sealing ring (1) being mounted on middle porcelain cylinder (3)；Big porcelain cylinder (4) inner upper is equipped with anode assemblies (9), is equipped with focusing electrode (10) below anode assemblies (9), is equipped with cathode (11) below focusing electrode (10)；Cathode (11) is connected with heated filament (12), the surrounding of cathode (11) is equipped with heat shielding cylinder (13), rear cover support tube (7) are installed below heat shielding cylinder (13), small porcelain cylinder (6) is installed below rear cover support tube (7), heated filament electrode (5) are installed below small porcelain cylinder (6).The structure design of the utility model is reasonable, and size is small, anti-sparking high reliablity, long service life.
Description
Technical field
The utility model relates to a kind of electron guns, and it is small specifically to design a kind of size, high reliablity, efficient miniaturization electricity
Sub- rifle.
Background technique
Millimeter wave has the superiority such as high resolution, precision height, energy density height, is millimetre-wave radar, new concept orientation
The ideal Millimeter-Wave Source of the research of energy weapon, electronic strong interference and confrontation, has important application prospect in terms of military and civilian.
And millimeter wave helix wave travelling-wave tubes has the characteristics that high-power, high efficiency, broadband, be widely used in millimetre-wave radar,
The fields such as satellite, airborne communication and electronic countermeasure.Along with the high speed development of various different radar systems, user is to travelling-wave tubes
Quantity and performance propose increasingly higher demands, and the development difficulty of millimeter wave traveling wave tube is increasing.
In order to meet demand fast development and realize key technology, weapon it is autonomous controllable, it is necessary to develop out
It sends out a kind of and can be applied to the electron gun of miniaturization millimeter wave traveling wave tube.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of structure design conjunction
Reason, size is small, and assembly is simply suitable for mass production, and diameter is smaller than 12mm, and the service life is long, the electron gun of high reliablity.
Technical solution: in order to achieve the goal above, the technical solution that the utility model is taken are as follows:
A kind of miniaturized electron gun, it includes magnetic cup positioning ring, the big porcelain cylinder being mounted on magnetic cup positioning ring, is mounted on big
Focusing electrode support tube in porcelain cylinder, the middle porcelain cylinder being mounted on focusing electrode support tube and the rear cover sealing-in being mounted on middle porcelain cylinder
Ring；Big porcelain cylinder inner upper is equipped with anode assemblies, and focusing electrode is equipped with below anode assemblies, is equipped with yin below focusing electrode
Pole；The cathode is connected with heated filament, and the surrounding of cathode is equipped with heat shielding cylinder, and rear cover support tube is equipped with below heat shielding cylinder,
Small porcelain cylinder is installed below rear cover support tube, heated filament electrode is installed below small porcelain cylinder.
Preferably, above-described miniaturized electron gun is welded with high-voltage connection on rear cover sealing ring.Focusing electrode
It is welded with high-voltage connection on support tube, is welded with high-voltage connection on heated filament electrode.
Preferably, above-described miniaturized electron gun, small porcelain cylinder and heated filament electrode are included in rear cover sealing ring
Inside.
Preferably, above-described miniaturized electron gun offers heat dam on heat shielding cylinder, can pass through heat shielding cylinder
On heat dam reduce cathode heating power, improve the reliability of electron gun.
Preferably, above-described miniaturized electron gun, rear cover sealing ring and focusing electrode support tube are tubular,
Conventional band ear wafer architecture is changed, the diameter of electron gun can be effectively reduced.
Preferably, above-described miniaturized electron gun, big porcelain cylinder, focusing electrode support tube, middle porcelain cylinder and rear cover
The size of four parts of sealing ring is gradually reduced, and this structure can reduce high-voltage connection and rear cover sealing ring and focusing electrode supports
The height when welding of cylinder, can reduce the embedding volume of silicon rubber, can effectively reduce the diameter of electron gun.
The utility model has the advantages that miniaturized electron gun provided by the utility model compared with prior art collector, has following excellent
Point:
Miniaturized electron gun described in the utility model, reasonable in design, high reliablity, sparking probability is low, and diameter can
Less than 12mm, sustainable work 100000 hours.It is able to achieve project Ka wave band, bandwidth 4GHz, work ratio 40%, pulse output work
10~20W of rate, 25~30dB of gain, efficiency 25%~30%, amplitude inconsistency be less than 1dB, Sensor gain and phase perturbations be less than ±
20 °, the application demand of outer dimension 180mm × 15mm × 15mm (without energy output system) serial travelling-wave tubes product can be met, taken
Obtained good technical effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in miniaturized electron gun vertical section described in the utility model.
Specific embodiment
Combined with specific embodiments below, the utility model is furtherd elucidate, it should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art couple
The modification of the various equivalent forms of the utility model falls within the application range as defined in the appended claims.
As shown in Figure 1, a kind of miniaturized electron gun, it includes magnetic cup positioning ring 8, is mounted on big on magnetic cup positioning ring 8
Porcelain cylinder 4, the focusing electrode support tube 2 being mounted in big porcelain cylinder 4 and are mounted on the middle porcelain cylinder 3 that is mounted on focusing electrode support tube 2
Rear cover sealing ring 1 on porcelain cylinder 3；Big 4 inner upper of porcelain cylinder is equipped with anode assemblies 9, is equipped with focusing electrode below anode assemblies 9
10, cathode 11 is installed below focusing electrode 10；The cathode 11 is connected with heated filament 12, and the surrounding of cathode 11 is equipped with heat shielding cylinder
13, the lower section of heat shielding cylinder 13 is equipped with rear cover support tube 7, and the lower section of rear cover support tube 7 is equipped with small porcelain cylinder 6, under small porcelain cylinder 6
Side is equipped with heated filament electrode 5.Rear cover sealing ring 1 and focusing electrode support tube 2 are tubular.
Above-described miniaturized electron gun is welded with high-voltage connection on rear cover sealing ring 1；It is welded on focusing electrode support tube 2
It is connected to high-voltage connection, is welded with high-voltage connection on heated filament electrode 5.
Above-described miniaturized electron gun, small porcelain cylinder 6 and heated filament electrode 5 are included in the inside of rear cover sealing ring 1.
Above-described miniaturized electron gun offers heat dam on heat shielding cylinder 13.
Above-described miniaturized electron gun, big porcelain cylinder 4, focusing electrode support tube 2, middle porcelain cylinder 3 and rear cover sealing ring 1 four
The size of part is gradually reduced.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of miniaturized electron gun, it is characterised in that: it includes magnetic cup positioning ring (8), is mounted on magnetic cup positioning ring (8)
Big porcelain cylinder (4), the focusing electrode support tube (2) being mounted in big porcelain cylinder (4), the middle porcelain cylinder being mounted on focusing electrode support tube (2)
(3) and the rear cover sealing ring (1) that is mounted on middle porcelain cylinder (3)；Big porcelain cylinder (4) inner upper is equipped with anode assemblies (9), anode
It is equipped with focusing electrode (10) below component (9), cathode (11) is installed below focusing electrode (10)；The cathode (11) and heated filament
(12) it is connected, the surrounding of cathode (11) is equipped with heat shielding cylinder (13), rear cover support tube (7) are installed below heat shielding cylinder (13),
Small porcelain cylinder (6) is installed below rear cover support tube (7), heated filament electrode (5) are installed below small porcelain cylinder (6).
2. miniaturized electron gun according to claim 1, it is characterised in that: be welded with high pressure on rear cover sealing ring (1) and draw
Line.
3. miniaturized electron gun according to claim 1, it is characterised in that: focusing electrode support tube is welded with high pressure on (2)
Lead.
4. miniaturized electron gun according to claim 1, it is characterised in that: small porcelain cylinder (6) and heated filament electrode (5) are included in
The inside of rear cover sealing ring (1).
5. miniaturized electron gun according to any one of claims 1 to 4, it is characterised in that: heat shielding cylinder offers on (13)
Heat dam.
6. miniaturized electron gun according to claim 5, it is characterised in that: rear cover sealing ring (1) and focusing electrode support tube
It (2) is tubular.
7. miniaturized electron gun according to claim 6, it is characterised in that: big porcelain cylinder (4), focusing electrode support tube (2), in
The size of (1) four part of porcelain cylinder (3) and rear cover sealing ring is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821992742.7U CN209216912U (en) | 2018-11-29 | 2018-11-29 | A kind of miniaturized electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821992742.7U CN209216912U (en) | 2018-11-29 | 2018-11-29 | A kind of miniaturized electron gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216912U true CN209216912U (en) | 2019-08-06 |
Family
ID=67462080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821992742.7U Active CN209216912U (en) | 2018-11-29 | 2018-11-29 | A kind of miniaturized electron gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464512A (en) * | 2022-02-10 | 2022-05-10 | 中国科学院空天信息创新研究院 | Emission device for emitting electrons, preparation method thereof and electron gun |
-
2018
- 2018-11-29 CN CN201821992742.7U patent/CN209216912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464512A (en) * | 2022-02-10 | 2022-05-10 | 中国科学院空天信息创新研究院 | Emission device for emitting electrons, preparation method thereof and electron gun |
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