CN203690248U - Welding helix structure of travelling wave tube - Google Patents
Welding helix structure of travelling wave tube Download PDFInfo
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- CN203690248U CN203690248U CN201320825001.0U CN201320825001U CN203690248U CN 203690248 U CN203690248 U CN 203690248U CN 201320825001 U CN201320825001 U CN 201320825001U CN 203690248 U CN203690248 U CN 203690248U
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- helix
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- slow wave
- travelling wave
- wave tube
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Abstract
The utility model discloses a welding helix structure of a travelling wave tube. The welding helix structure comprises a helix, a slow wave transition strip and a shell, wherein the slow wave transition strip and the helix are positioned in the shell and arranged axially along the internal of the shell, the helix is coaxial to the shell, and the slow wave transition strip is positioned between the helix and the shell. The welding helix structure further comprise block-shaped grip blocks between the slow wave transition strip and the helix, and the contacting surfaces of the grip blocks with the slow wave transition strip and the helix are plated with platable metal. The grip blocks and the slow wave transition strip and the helix are welded together through the platable metal, and the grip blocks are distributed along the cross section of the helix along the circumferential direction in 120-degree intervals. Adjacent grip blocks on the axial direction of the helix are not connected with one another. The travelling wave tube employing the welding helix structure reduces load, increases coupling impedance and improves electronic efficiency.
Description
Technical field
The utility model relates to a kind of microwave device, relates in particular to a kind of Brazing helix structure of travelling wave tube.
Background technology
Travelling wave tube is a kind of microwave electrovacuum power device, mainly plays final stage amplification in microwave signal system, and application is extensive.Travelling wave tube has frequently the large and low feature of noise of high ﹑ dynamic range that gains with wide ﹑, has become Lei Da ﹑ electricity the logical letter ﹑ that continues in anti-﹑ is defended the logical letter of star ﹑ live telecast and defends star ﹑ and lead the important microwave device of the electronic equipments such as the distant ﹑ of control of boat ﹑ distant sense ﹑ remote measurement.TWT slow wave part is intercepted and captured heat-dissipating because a small amount of irregular electrons produces, if this part heat can not effectively spread out of dissipation, thereby can have a negative impact and affect the job stability of travelling wave tube the operational environment of travelling wave tube, when serious, also can damage travelling wave tube, therefore, the heat radiation of slow wave is extremely important, the Brazing helix structure of existing TWT slow wave part can make between helix and supporting rod, thermal resistance between supporting rod and shell reduces, thereby improve the heat-sinking capability of slow wave, but the Brazing helix structure of existing most of travelling wave tube is by supporting rod and helix and slow wave transition strips welded structure, the travelling wave tube of this kind of structure can improve the heat-sinking capability of slow wave, but affect the electronics interaction efficiency of travelling wave tube, and then affect the electronic efficiency of travelling wave tube homogeneous tube.
summary of the invention
According to above-mentioned situation, the utility model provides one both can improve slow wave heat-sinking capability, can improve or keep again electronics interaction efficiency the Brazing helix structure of travelling wave tube.The technical solution of the utility model is: a kind of Brazing helix structure of travelling wave tube, comprise helix, slow wave transition strips, shell, it is inner and along shell inner shaft to setting that slow wave transition strips and helix are positioned at shell, and described helix is coaxial with shell, described slow wave transition strips is between helix and shell, the Brazing helix structure of described travelling wave tube also comprises the grip block of block structure, described grip block is between slow wave transition strips and helix, grip block is coated with easy weld metal with the face that slow wave transition strips and helix contact, grip block and slow wave transition strips and helix weld together by easy weld metal, described grip block is the distribution of 120 °, interval on the circumferencial direction of helix cross section, between adjacent grip block in spiral axis direction, be not connected mutually.
In the Brazing helix structure of described travelling wave tube, described easy weld metal is silver; Described grip block be by aluminium oxide, diamond, boron nitride or beryllium oxide wherein a kind of material make.
The beneficial effects of the utility model are: the travelling wave tube that adopts above-mentioned Brazing helix structure, compared with the travelling wave tube of existing Brazing helix structure, alleviate loading, increase coupling impedance, improve electronic efficiency, make travelling wave tube in working band, export the minimum electronic efficiency of 200W power and bring up to 13.7% by 12%, helix slow-wave maximum is born more than intercepting and capturing (referring to the maximum tolerance power of slow wave) bring up to 50mA by 40mA, increase more than 25%, improve comparatively significantly the reliability of helix slow-wave, improved the homogeneous tube efficiency of travelling wave tube; Reduce the overall heat consumption of travelling wave tube, improved job stability and the reliability of travelling wave tube.
Brief description of the drawings
The sectional view of Fig. 1 Brazing helix structure of the present utility model;
The axial view of Fig. 2 Brazing helix structure of the present utility model;
In figure, 1, helix, 2, grip block, 3, slow wave transition strips, 4, shell.
Embodiment
Although the helix Welding Structure of existing travelling wave tube can improve the heat-sinking capability of travelling wave tube, but affect the electronic efficiency of travelling wave tube, in order to solve described problem, the utility model provides a kind of Brazing helix structure of travelling wave tube, adopt compared with the travelling wave tube of Brazing helix structure described in the utility model and the travelling wave tube of existing Brazing helix structure, alleviate loading, increase coupling impedance, improve electronic efficiency, improve comparatively significantly the reliability of helix slow-wave, improved the homogeneous tube efficiency of travelling wave tube; Reduce the overall heat consumption of travelling wave tube, improved job stability and the reliability of travelling wave tube.
Below in conjunction with accompanying drawing of the present utility model; technical scheme in the utility model embodiment is known intactly and described; obviously; described embodiment is only a part of embodiment of the present utility model; instead of whole embodiment, based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisite; the every other embodiment obtaining, belongs to protection range of the present utility model.
The helix Welding Structure of travelling wave tube of the present utility model as shown in Figure 1, comprise helix, slow wave transition strips, shell, it is inner and along shell inner shaft to setting that slow wave transition strips and helix are positioned at shell, and described helix is coaxial with shell, described slow wave transition strips is between helix and shell, the Brazing helix structure of travelling wave tube of the present utility model also comprises the grip block of being made up of alumina ceramic of block structure, described grip block is between slow wave transition strips and helix, grip block is coated with silver with the face that slow wave transition strips and helix contact, grip block and slow wave transition strips and helix are connected together by silver soldering, grip block is the distribution of 120 °, interval on the circumferencial direction of helix cross section, adjacent grip block in spiral axis direction is not connected mutually.
Adopt the travelling wave tube of the Brazing helix structure in above-described embodiment, compared with the travelling wave tube of existing Brazing helix structure, alleviated loading, increase coupling impedance, improved electronic efficiency, on certain type 200W travelling wave tube, in its working band, minimum electronic efficiency brings up to 13.7% by 12%; Helix slow-wave maximum has improved the reliability of helix slow-wave more than bearing and intercepting and capturing and bring up to 50mA by 40mA comparatively significantly, has improved the homogeneous tube efficiency of travelling wave tube; Reduce the overall heat consumption of travelling wave tube, improved job stability and the reliability of travelling wave tube.
In above-described embodiment grip block can be also by diamond, boron nitride or beryllium oxide wherein a kind of material make.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.Be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wide region consistent with principle disclosed herein and features of novelty.
Claims (3)
1. the Brazing helix structure of a travelling wave tube, comprise helix, slow wave transition strips, shell, it is inner and along shell inner shaft to setting that slow wave transition strips and helix are positioned at shell, and described helix is coaxial with shell, described slow wave transition strips is between helix and shell, it is characterized in that, the Brazing helix structure of described travelling wave tube also comprises the grip block of block structure, described grip block is between slow wave transition strips and helix, grip block is coated with easy weld metal with the face that slow wave transition strips and helix contact, grip block and slow wave transition strips and helix weld together by easy weld metal, grip block is the distribution of 120 °, interval on the circumferencial direction of helix cross section, between adjacent grip block in spiral axis direction, be not connected mutually.
2. the Brazing helix structure of travelling wave tube as claimed in claim 1, is characterized in that, described easy weld metal is silver.
3. the Brazing helix structure of the travelling wave tube as described in claim as arbitrary in claim 1-2, is characterized in that, described grip block be by alumina ceramic, diamond, boron nitride or beryllium oxide wherein a kind of material make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825001.0U CN203690248U (en) | 2013-12-16 | 2013-12-16 | Welding helix structure of travelling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825001.0U CN203690248U (en) | 2013-12-16 | 2013-12-16 | Welding helix structure of travelling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690248U true CN203690248U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825001.0U Expired - Fee Related CN203690248U (en) | 2013-12-16 | 2013-12-16 | Welding helix structure of travelling wave tube |
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| CN (1) | CN203690248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632906A (en) * | 2013-12-16 | 2014-03-12 | 成都国光电气股份有限公司 | Welding helix structure of traveling-wave tube |
| CN105977120A (en) * | 2016-07-14 | 2016-09-28 | 中国电子科技集团公司第十二研究所 | Manufacturing method of high-heat-conduction helix slow-wave structure |
| CN113681158A (en) * | 2021-08-05 | 2021-11-23 | 南京三乐集团有限公司 | Device and method for welding and fixing tube shell of traveling wave tube |
-
2013
- 2013-12-16 CN CN201320825001.0U patent/CN203690248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632906A (en) * | 2013-12-16 | 2014-03-12 | 成都国光电气股份有限公司 | Welding helix structure of traveling-wave tube |
| CN105977120A (en) * | 2016-07-14 | 2016-09-28 | 中国电子科技集团公司第十二研究所 | Manufacturing method of high-heat-conduction helix slow-wave structure |
| CN113681158A (en) * | 2021-08-05 | 2021-11-23 | 南京三乐集团有限公司 | Device and method for welding and fixing tube shell of traveling wave tube |
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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: 20140702 Termination date: 20161216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |