CN203812849U - Structure for preventing electron sputtering of electron tube - Google Patents
Structure for preventing electron sputtering of electron tube Download PDFInfo
- Publication number
- CN203812849U CN203812849U CN201420169610.XU CN201420169610U CN203812849U CN 203812849 U CN203812849 U CN 203812849U CN 201420169610 U CN201420169610 U CN 201420169610U CN 203812849 U CN203812849 U CN 203812849U
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- electron
- electron tube
- sputtering
- grid
- preventing
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Abstract
The utility model discloses a structure for preventing electron sputtering of an electron tube and belongs to the technical field of electronic components. The structure includes an electron tube seat, an electron tube grid and a tantalum-niobium sheet layer; the electron tube grid is arranged on the electron tube seat; and the tantalum-niobium sheet layer is welded at a non-control cathode electron emission region at the lower end of the electron tube grid. The structure for preventing the electron sputtering of the electron tube has the advantages of reasonable structure design, simplicity and practicability, and convenient welding, and can block sputtering electrons emitted by cathode electrons from the non-control cathode electron emission region. According to the structure for preventing the electron sputtering of the electron tube, an excellent air absorbing function of tantalum-niobium materials under a certain temperature condition is utilized, and therefore, the vacuum degree of the electron tube can be maintained and improved, and the problem of early failure of the electron tube can be solved.
Description
Technical field
The utility model relates to a kind of electronics sputter structure that prevents electron tube, belongs to technical field of electronic components.
Background technology
Electron tube is a kind of electric signal amplifier part of earliest period, and the cathode electronics radiating portion, control grid, accelerating grid electrode, anode (anode) lead-in wire that are closed in glass container are welded on base.Utilize electric field to inject electronics modulation signal to the control grid in vacuum, and obtain the different parameters signal data after signal amplification or feedback oscillation at anode.Be applied in early days in the electronic products such as television set, broadcast receiver sound amplifier, by the amplifier of semi-conducting material manufacturing and integrated circuit, replaced gradually in recent years, but at present in the sound appliances of some high-fidelities, still using low noise, electron tube that the coefficient of stability is high is audio-frequency power amplifier part.
Electron tube is comprised of negative electrode, grid and anode, and negative electrode, grid and anode are loop configuration, is respectively negative electrode, grid and anode from the inside to the outside.Negative electrode is electron emission, and grid is the electron stream of control cathode transmitting, and anode is the electronics of accepting cathode emission.Electron tube for high-frequency heating field is generally compact to design, negative electrode, grid and anode are all designed to slender type, cause managing inner grid syndeton longer, grid is longer than the emitting area of negative electrode, easily cause the electronics of part cathode emission to form random sputter, when the electronics of certain energy is splashed on insulating ceramics, easily makes ceramic partially be heated and break, thereby cause electron tube to scrap inefficacy.
Utility model content
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of electronics sputter structure that prevents electron tube.
The electronics sputter structure that prevents electron tube of the present utility model, it comprises valve base, electronic tube grid, tantalum niobium lamella, on valve base, be provided with electronic tube grid, the non-control cathode electron emission region in lower end of electronic tube grid is welded with tantalum niobium lamella.
The beneficial effects of the utility model: its reasonable in design, simple and practical, convenient welding, both stopped the region sputter electronics of cathode electronics from non-control cathode electron emission, utilize again tantalum niobium material under uniform temperature state, to there is good air-breathing function, maintain and can improve the vacuum degree of electron tube, having stopped the problem that early failure appears in electron tube.
Accompanying drawing explanation
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is perspective view of the present utility model.
1-valve base; 2-electronic tube grid; 3-tantalum niobium lamella.
Embodiment
As Fig. 1, shown in Fig. 2, this embodiment is by the following technical solutions: it comprises valve base 1, electronic tube grid 2, tantalum niobium lamella 3, is provided with electronic tube grid 2 on valve base 1, and the non-control cathode electron emission region in lower end of electronic tube grid 2 is welded with tantalum niobium lamella 3.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. an electronics sputter structure that prevents electron tube, it is characterized in that: it comprises valve base (1), electronic tube grid (2), tantalum niobium lamella (3), on valve base (1), be provided with electronic tube grid (2), the non-control cathode electron emission region in lower end of electronic tube grid (2) is welded with tantalum niobium lamella (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169610.XU CN203812849U (en) | 2014-04-10 | 2014-04-10 | Structure for preventing electron sputtering of electron tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169610.XU CN203812849U (en) | 2014-04-10 | 2014-04-10 | Structure for preventing electron sputtering of electron tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812849U true CN203812849U (en) | 2014-09-03 |
Family
ID=51451568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169610.XU Expired - Fee Related CN203812849U (en) | 2014-04-10 | 2014-04-10 | Structure for preventing electron sputtering of electron tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109769310A (en) * | 2017-11-10 | 2019-05-17 | 庄品洋 | A kind of vacuum tube tone color micro control device and vacuum tube sound equipment power amplification system |
-
2014
- 2014-04-10 CN CN201420169610.XU patent/CN203812849U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109769310A (en) * | 2017-11-10 | 2019-05-17 | 庄品洋 | A kind of vacuum tube tone color micro control device and vacuum tube sound equipment power amplification system |
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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 |
Granted publication date: 20140903 Termination date: 20160410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |