CN203746787U - Short circuit resistance hot wire assembly for pulse traveling-wave tube - Google Patents
Short circuit resistance hot wire assembly for pulse traveling-wave tube Download PDFInfo
- Publication number
- CN203746787U CN203746787U CN201320849107.4U CN201320849107U CN203746787U CN 203746787 U CN203746787 U CN 203746787U CN 201320849107 U CN201320849107 U CN 201320849107U CN 203746787 U CN203746787 U CN 203746787U
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- China
- Prior art keywords
- short circuit
- hot wire
- spiral
- wave tube
- circuit resistance
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a short circuit resistance hot wire assembly for a pulse traveling-wave tube, comprising two spiral hot wires (1) in parallel connection, lead-out pins (2) of the spiral hot wires, hot wire insulation porcelains (3) fixing the two spiral hot wires (1), a hot wire pallet (4) supporting and fixing the two hot wires (1) in parallel connection, and cathode combinations (5) installed on the hot wire insulation porcelains (3). The short circuit resistance hot wire assembly for a pulse traveling-wave tube of the utility model has reasonable structure design, can prevent deformation and short circuit, and has good heating uniformity and low work voltage; in addition, the short circuit resistance hot wire assembly can bear large surge current, has a wide application scope, and can be assembled in an X type pulse travelling-wave tube. The short circuit resistance hot wire assembly possesses the advantages of wide band, wide pulse, high power, high efficiency, stable performance, etc.
Description
Technical field
The utility model relates to a kind of travelling wave tube, is specifically related to the anti-short circuit filament assembly that a kind of pulsed TWT is used.
Background technology
Travelling wave tube is the microwave tube that a kind of speed by continuous modulation electron beam realizes enlarging function, the feature of travelling wave tube is bandwidth, it is high to gain, dynamic range is large and noise is low, and therefore modern travelling wave tube has become the important microwave electronic device of the electronic equipments such as radar, electronic countermeasures, trunking traffic, satellite communication, live telecast satellite, navigation, remote sensing, remote control, remote measurement.
In travelling wave tube, negative electrode is the electron source of electron beam, if meet, the ability of travelling wave tube cathode emission electronics is strong, Electron Beam Shape and the good requirement of laminarity, and heated filament must have the features such as homogeneous heating, efficiency are high, working stability.But in prior art, in travelling wave tube research and development production process, there will be heated filament short circuit phenomenon, and the heated filament efficiency of heating surface is not high, has affected negative electrode to service behaviour, has had a strong impact on the normal work of travelling wave tube.
Therefore, necessaryly on prior art basis, design and develop one, structural design is more reasonable, can prevent that distortion, short circuit phenomenon from occurring, heating uniformity is good, can bear the anti-short circuit filament assembly that pulsed TWT that surge current is large is used.
Summary of the invention
Goal of the invention: the purpose of this utility model is in order to solve the deficiencies in the prior art, provide a kind of structural design more reasonable, can prevent that distortion, short circuit phenomenon from occurring, heating uniformity is good, low-work voltage, can bear the anti-short circuit filament assembly that pulsed TWT that surge current is large is used.
Technical scheme: in order to realize above object, technical solution adopted in the utility model is:
The anti-short circuit filament assembly that a kind of pulsed TWT is used, it comprises: the leading foot of two spiral heated filaments in parallel, spiral heated filament, fix the heated filament insulation porcelain of two spiral heated filaments in parallel, the heated filament pallet of two spiral heated filaments in parallel is fixed in support, is arranged on the cathode combination on heated filament insulation porcelain.
As preferred version, the anti-short circuit filament assembly that above-described pulsed TWT is used, two spiral heated filament number of turns in parallel are 9 to 12 circles.
As more preferably scheme, the anti-short circuit filament assembly that described pulsed TWT is used, the diameter of two spiral heated filaments in parallel is 0.1 to 0.3 mm.
What the former X-type travelling wave tube of prior art electron gun adopted is single spiral hot wire structure, heated filament pin is drawn from same direction, the heater resistance that the present invention will develop is little, if adopt identical silk material must reduce the spiral number of turns, if maintain, the spiral number of turns is constant must increase heated filament diameter, and above two factors all will exert an influence to the efficiency of heating surface.The present invention screens by great many of experiments, adopt two spiral heated filament parallel-connection structures to replace original single spiral hot wire structure, by preferred optimal heat filament diameter, maintaining heat wire ring number is constant, heated filament semi-ring cold resistance meaning 0.63～0.65 Ω after adjusting, and heater voltage parameter is 6～7V, resistor satisfied requirement, this structure can make heated filament homogeneous heating, and pin is drawn the other way around, can avoid completely causing heated filament short circuit because of expanded by heating distortion.
Beneficial effect: the anti-short circuit filament assembly that the pulsed TWT that the utility model provides is used compared with prior art has the following advantages:
The anti-short circuit filament assembly that the pulsed TWT that the utility model provides is used, reasonable in design, can prevent that distortion, short circuit phenomenon from occurring, and heating uniformity is good, operating voltage is low, can bear surge current large, is applied in extensive range, be assembled in X-type pulsed TWT, there is the features such as broadband, broad pulse, high-power, high efficiency.
Brief description of the drawings
The structural representation of the anti-short circuit filament assembly that Fig. 1 uses for the pulsed TWT that the utility model provides.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only be not used in restriction scope of the present utility model for the utility model is described, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present utility model.
Embodiment 1
As shown in Figure 1, the anti-short circuit filament assembly that pulsed TWT described in the utility model is used, it comprises: the leading foot (2) of two spiral heated filaments (1) in parallel, spiral heated filament (1), fix the heated filament insulation porcelain (3) of two spiral heated filaments (1) in parallel, the heated filament pallet (4) of two spiral heated filaments (1) in parallel is fixed in support, is arranged on the cathode combination (5) on heated filament insulation porcelain (3).
The anti-short circuit filament assembly that above-described pulsed TWT is used, two spiral heated filament (1) number of turns in parallel are 9 to 12 circles.
The anti-short circuit filament assembly that above-described pulsed TWT is used, the diameter of two spiral heated filaments in parallel is 0.1 to 0.3 mm.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. the anti-short circuit filament assembly that pulsed TWT is used, it is characterized in that, it comprises: the leading foot (2) of two spiral heated filaments (1) in parallel, spiral heated filament (1), fix the heated filament insulation porcelain (3) of two spiral heated filaments (1) in parallel, the heated filament pallet (4) of two spiral heated filaments (1) in parallel is fixed in support, is arranged on the cathode combination (5) on heated filament insulation porcelain (3).
2. the anti-short circuit filament assembly that pulsed TWT according to claim 1 is used, is characterized in that, two spiral heated filament (1) number of turns in parallel are 9 to 12 circles.
3. the anti-short circuit filament assembly that pulsed TWT according to claim 1 is used, is characterized in that, the diameter of two spiral heated filaments (1) in parallel is 0.1 to 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849107.4U CN203746787U (en) | 2013-12-23 | 2013-12-23 | Short circuit resistance hot wire assembly for pulse traveling-wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849107.4U CN203746787U (en) | 2013-12-23 | 2013-12-23 | Short circuit resistance hot wire assembly for pulse traveling-wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746787U true CN203746787U (en) | 2014-07-30 |
Family
ID=51346552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849107.4U Expired - Fee Related CN203746787U (en) | 2013-12-23 | 2013-12-23 | Short circuit resistance hot wire assembly for pulse traveling-wave tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746787U (en) |
-
2013
- 2013-12-23 CN CN201320849107.4U patent/CN203746787U/en not_active Expired - Fee Related
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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: 20140730 Termination date: 20211223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |