阅读说明：本技术 电子枪框架及空间行波管 (Electron gun frame and space traveling wave tube ) 是由 曹勇 冯宇 史峰 龚科瑜 刘能锋 于 2020-07-24 设计创作，主要内容包括：本发明涉及真空电子器件技术领域,提供一种电子枪框架,包括绝缘瓷座、设于绝缘瓷座上的第一阳极座、第二阳极座以及用于固定第一阳极座及第二阳极座的定位件,绝缘瓷座包括绝缘瓷环、以及沿绝缘瓷环顶面圆周均匀分布的至少两组定位块组,每组定位块组包括第一定位块、第二定位块以及用于第三定位块,第一定位块、第二定位块及第三定位块依序且等距排列,第一定位块、第二定位块及第三定位块的设置高度依次变大,各所述第一定位块、第二定位块及第三定位块分别通过卡接方式与第一阳极座、第二阳极座及定位件固定连接。本发明解决现有技术中小型化行波管在减重、加工、装配及精度上不能满足要求的技术问题。(The invention relates to the technical field of vacuum electronic devices, and provides an electron gun frame which comprises an insulating ceramic base, a first anode base, a second anode base and a positioning piece, wherein the first anode base and the second anode base are arranged on the insulating ceramic base, the positioning piece is used for fixing the first anode base and the second anode base, the insulating ceramic base comprises an insulating ceramic ring and at least two groups of positioning block groups which are uniformly distributed along the circumference of the top surface of the insulating ceramic ring, each group of positioning block groups comprises a first positioning block, a second positioning block and a third positioning block, the first positioning block, the second positioning block and the third positioning block are sequentially and equidistantly arranged, the setting heights of the first positioning block, the second positioning block and the third positioning block are sequentially increased, and each first positioning block, each second positioning block and each third positioning block are fixedly connected with the first anode base, the second anode base and the positioning piece in a clamping mode respectively. The invention solves the technical problem that the small and medium-sized traveling wave tube in the prior art cannot meet the requirements on weight reduction, processing, assembly and precision.)

1. The utility model provides an electron gun frame, includes the insulating porcelain seat, locates first positive pole seat, second positive pole seat on the insulating porcelain seat and be used for fixing the setting element of first positive pole seat and second positive pole seat, its characterized in that: the insulating porcelain seat includes insulating porcelain ring and edge insulating porcelain ring top surface circumference evenly distributed's at least two sets of locating block group, every group locating block group is including being used for fixing the first locating piece of first positive pole seat, being used for fixing the second locating piece of second positive pole seat and being used for being fixed in the third locating piece of setting element, in every group locating block group first locating piece, second locating piece and third locating piece are arranged according to the preface and equidistance, in every group locating block group the setting height of first locating piece, second locating piece and third locating piece highly grow in proper order, each first locating piece, second locating piece and third locating piece respectively through the joint mode with first positive pole seat, second positive pole seat reach setting element fixed connection.

2. The electron gun frame according to claim 1, wherein: the first anode seat is provided with a first connecting hole for the first positioning block to be clamped in, and the first connecting hole is provided with a first elastic opening penetrating to the outside; a second connecting hole for the second positioning block to be clamped in is formed in the second anode seat, and a second elastic opening penetrating to the outside is formed in the second connecting hole; and a third connecting hole for the third positioning block to be clamped is formed in the third anode seat, and a third elastic opening penetrating to the outside is formed in the third connecting hole.

3. The electron gun frame according to claim 2, wherein: the outer side wall of the first positioning block is provided with a concave first guide surface, and the first guide surface faces the first elastic opening; the outer side wall of the second positioning block is provided with a concave second guide surface, and the second guide surface faces the second elastic opening; and the outer side wall of the third positioning block is provided with a concave third guide surface, and the third guide surface faces the third elastic opening.

4. The electron gun frame according to claim 1, wherein: the first positioning block is arranged on the top surface of the insulating ceramic ring, the second positioning block is arranged on the top surface of a first ceramic column, the third positioning block is arranged on the top surface of a second ceramic column, and the height of the first ceramic column is smaller than that of the second ceramic column.

5. The electron gun frame according to claim 4, wherein: and groove structures are arranged on the outer wall surfaces of the first ceramic columns and the second ceramic columns.

6. The electron gun frame according to any one of claims 2 to 5, characterized in that: the positioning block groups are three groups, the connecting lines of three first positioning blocks in the three groups of positioning block groups are in an equilateral triangle shape, three first connecting blocks corresponding to the three first positioning blocks respectively are arranged on the first anode seat, and the three first connecting holes are arranged on the three first connecting blocks respectively; the connecting lines of three second positioning blocks in the three groups of positioning block groups are in an equilateral triangle shape, three second connecting blocks corresponding to the three second positioning blocks respectively are arranged on the second anode seat, and the three second connecting holes are arranged on the three second connecting blocks respectively; three third locating piece lines in three locating piece groups are equilateral triangle, be provided with respectively with three third connecting block that the third locating piece corresponds on the setting element, three third connecting hole is located respectively on the three third connecting block.

7. The electron gun frame according to claim 6, wherein: the first anode seat comprises an anode plate superposed above the insulating ceramic ring, and the three first connecting blocks are uniformly distributed on the edge of the anode plate; the second anode seat comprises an anode body superposed on the anode plate, and the three second connecting blocks are uniformly distributed on the edge of the anode body; the positioning piece comprises a positioning ring superposed on the anode body, and three third connecting blocks are uniformly distributed on the edge of the positioning ring.

8. The electron gun frame according to claim 7, wherein: the anode plate is disc-shaped.

9. The electron gun frame according to claim 7, wherein: the anode body is cylindrical.

10. A space traveling wave tube comprises an electron gun frame, and is characterized in that: the electron gun frame according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of vacuum electronic devices, and particularly provides an electron gun frame and a space traveling wave tube.

Background

The travelling wave tube is one of important members of a microwave electro-vacuum device family, and is a device for amplifying electromagnetic waves by utilizing the interaction between the electromagnetic waves and electron beams in an interaction region of the travelling wave tube. The traveling wave tube generally comprises an electron gun, a magnetic focusing system, a slow wave structure, an energy transmission coupling structure and a single-stage or multi-stage depressed collector.

The fundamental principle of the traveling wave tube as a power amplifier is that the high-frequency slow wave system reduces the phase speed of electromagnetic waves to enable the electromagnetic waves to interact with electron beams synchronously, so that the energy of the electron beams is converted into microwave energy. Electrons emitted from the cathode are accelerated and compressed into electron beams in an electron gun, and the electron beams are maintained to be thin electron beams by a periodic magnetic focusing system and pass through a spiral line high-frequency system; the electronic kinetic energy is converted into microwave energy in a high-frequency system, so that signals are amplified; the amplified microwave enters an antenna transmitting system through an energy transmission coupling system; the electron beams with given partial energy enter a multi-stage depressed collector, are decelerated before reaching a collector electrode, and partial energy is recovered; the remaining electron energy is converted to thermal energy in the collector.

Traveling wave tubes are important microwave power devices, and because a single device has a wide working frequency (a bandwidth of several octaves can be easily obtained, and the device is suitable for electronic warfare), large output power and high efficiency, the traveling wave tubes are widely applied to the fields of electronic countermeasure, electronic warfare, radar, meteorological observation, space measurement, satellite communication and the like. Different application fields have different requirements on devices such as traveling wave tubes and the like. However, in general, higher power and higher efficiency of the traveling wave tube are common requirements for various applications, especially for space traveling wave tubes for space measurement and satellite communication. In recent years, the demand for miniaturization of the traveling wave tube has arisen, and the traveling wave tube has rapidly reached the level of practical use, and the traveling wave tube has higher requirements on weight reduction, processing, assembly and precision while being miniaturized, but the traveling wave tube of the existing structure far from reaching the requirements.

Disclosure of Invention

The technical scheme adopted by the invention is as follows: the utility model provides an electron gun frame, includes the insulating porcelain seat, locates first positive pole seat, second positive pole seat on the insulating porcelain seat and be used for fixing the setting element of first positive pole seat and second positive pole seat, the insulating porcelain seat includes the insulating porcelain ring and follows at least two sets of locating block groups of insulating porcelain ring top surface circumference evenly distributed, every group locating block group is including being used for fixing the first locating piece of first positive pole seat, being used for fixing the second locating piece of second positive pole seat and being used for being fixed in the third locating piece of setting element, in every group locating block group first locating piece, second locating piece and third locating piece are arranged according to the preface and equidistance, in every group locating block group the setting height of first locating piece, second locating piece and third locating piece grow in proper order, each first locating piece, second locating piece and third locating piece respectively through the joint mode with first positive pole seat, The second anode seat is fixedly connected with the positioning piece.

Furthermore, a first connecting hole for the first positioning block to be clamped in is formed in the first anode seat, and a first elastic opening penetrating to the outside is formed in the first connecting hole; a second connecting hole for the second positioning block to be clamped in is formed in the second anode seat, and a second elastic opening penetrating to the outside is formed in the second connecting hole; and a third connecting hole for the third positioning block to be clamped is formed in the third anode seat, and a third elastic opening penetrating to the outside is formed in the third connecting hole.

Furthermore, the outer side wall of the first positioning block is provided with a concave first guide surface facing to

The first elastic opening; the outer side wall of the second positioning block is provided with a concave second guide surface facing to

The second elastic opening; the outer side wall of the third positioning block is provided with a concave third guide surface facing to

The third elastic opening.

Furthermore, the first positioning block is arranged on the top surface of the insulating ceramic ring, the second positioning block is arranged on the top surface of a first ceramic column, the third positioning block is arranged on the top surface of a second ceramic column, and the height of the first ceramic column is smaller than that of the second ceramic column.

Furthermore, the outer wall surfaces of the first ceramic posts and the second ceramic posts are both provided with groove-shaped structures.

Furthermore, the positioning block groups are three groups, three first positioning blocks in the three groups of positioning block groups are connected to form an equilateral triangle, three first connecting blocks corresponding to the three first positioning blocks are arranged on the first anode seat, and the three first connecting holes are arranged on the three first connecting blocks respectively; the connecting lines of three second positioning blocks in the three groups of positioning block groups are in an equilateral triangle shape, three second connecting blocks corresponding to the three second positioning blocks respectively are arranged on the second anode seat, and the three second connecting holes are arranged on the three second connecting blocks respectively; three third locating piece lines in three locating piece groups are equilateral triangle, be provided with respectively with three third connecting block that the third locating piece corresponds on the setting element, three third connecting hole is located respectively on the three third connecting block.

Furthermore, the first anode seat comprises an anode plate superposed above the insulating ceramic ring, and the three first connecting blocks are uniformly distributed on the edge of the anode plate; the second anode seat comprises an anode body superposed on the anode plate, and the three second connecting blocks are uniformly distributed on the edge of the anode body; the positioning piece comprises a positioning ring superposed on the anode body, and three third connecting blocks are uniformly distributed on the edge of the positioning ring.

Further, the anode plate is disc-shaped.

Further, the anode body is cylindrical.

The invention also provides a space traveling wave tube which comprises an electron gun frame, wherein the electron gun frame is the electron gun frame.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an electron gun frame according to an embodiment of the present invention;

fig. 2 is an exploded view of an electron gun frame according to an embodiment of the present invention.

10-an insulating ceramic base; 11-an insulating ceramic ring; 12-a set of location blocks; 121-a first positioning block; 122-a second locating block; 123-a third positioning block; 124-a first guide surface; 126-a second guide surface; 128-a third guide surface; 13-first ceramic posts; 14-a second ceramic post; 15-slot type structure; 20-a first anode holder; 21-an anode plate; 22-a first connection block; 23-a first connection hole; 24-a first elastic opening; 30-a second anode holder; 31-an anode body; 32-a second connecting block; 33-second connection hole; 34-a second elastic opening; 40-a positioning element; 41-a positioning ring; 42-a third connecting block; 43-third connection hole; 44-third elastic opening.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 and 2, the electron gun frame provided by the present invention includes an insulating ceramic base 10, a first anode base 20, a second anode base 30 and a positioning member 40 for fixing the first anode base 20 and the second anode base 30, which are disposed on the insulating ceramic base 10, wherein the insulating ceramic base 10 includes an insulating ceramic ring 11, and at least two positioning block sets 12 uniformly distributed along the circumference of the top surface of the insulating ceramic ring 11, each positioning block set 12 includes a first positioning block 121 for fixing the first anode base 20, a second positioning block 122 for fixing the second anode base 30 and a third positioning block 123 for fixing the positioning member 40, the first positioning block 121, the second positioning block 122 and the third positioning block 123 in each positioning block set 12 are sequentially and equidistantly arranged, the first positioning block 121, the second positioning block 122 and the third positioning block 123 in each positioning block set 12 are sequentially increased in height, each of the first positioning block 121, the second positioning block 122 and the third positioning block 123 is fixedly connected to the first anode holder 20, the second anode holder 30 and the positioning element 40 by means of a snap-fit connection.

In the embodiment of the invention, the positioning blocks with different heights are adopted to respectively fix the first anode seat 20, the second anode seat 30 and the positioning blocks, so that the insulating properties between the first anode seat 20 and the second anode seat 30 and the ground are increased, the parallelism and the concentricity of the electron gun are improved, the light weight is realized, and the requirement of miniaturization of a vacuum device is met; and the assembly is carried out in a clamping manner, so that the process is simpler and the assembly efficiency is higher.

Specifically, in the present embodiment, the material of the insulating ceramic ring 11 may be selected from BeO, Al2O 395%, AlN or BN. Three groups of positioning block groups 12 are arranged on the insulating ceramic ring 11. The three positioning block sets 12 are uniformly distributed along the insulating ceramic ring 11, and each positioning block set 12 includes a first positioning block 121, a second positioning block 122, and a third positioning block 123. Each group of the active ingredients is fixed

The first positioning block 121, the second positioning block 122 and the third positioning block 123 in the bit block group 12 are arranged in the same order. Thus, the three positioning block sets 12 include three first positioning blocks 121, three second positioning blocks 122 and three third positioning blocks 123. Furthermore, the connecting lines between the three first positioning blocks 121 are in the shape of an equilateral triangle, the connecting lines between the three second positioning blocks 122 are in the shape of an equilateral triangle, and the connecting lines between the three third positioning blocks 123 are also in the shape of an equilateral triangle.

Moreover, the outer side wall of each first positioning block 121 is provided with a concave first guide surface 124; the outer side wall of each second positioning block 122 is provided with a concave second guide surface 126; the outer side wall of each third positioning block 123 is provided with a concave third guiding surface 128.

As shown in fig. 2, the first anode holder 20, the second anode holder 30 and the positioning member 40 are sequentially stacked on the insulating ceramic ring 11 from bottom to top. Wherein, first anode seat 20 is including the anode plate 21 of superposing in insulating porcelain ring 11 top, anode plate 21 is discoid, three first connecting block 22 of anode plate 21 edge evenly distributed, all set up first connecting hole 23 on every first connecting block 22, every first connecting hole 23 corresponds with every first locating piece 121, in supplying first locating piece 121 card to go into first connecting hole 23, be equipped with on the first connecting hole 23 and link up to outside first elasticity opening 24, the first spigot surface 124 of the indent formula that first locating piece 121 lateral wall was equipped with is towards first elasticity opening 24. When the first connecting hole 23 is slightly smaller, the first positioning block 121 and the first connecting hole 23 are tightly assembled, and the first elastic opening 24 enables the first connecting hole 23 to have elastic opening and closing capability, so that the first connecting hole 23 is slightly elastically deformed when the first positioning block 121 is installed, and the first positioning block 121 is conveniently and smoothly installed; when the first connection hole 23 is slightly larger, the first positioning block 121 and the first connection hole 23 do not need pre-tightening force during assembly, and after the first positioning block 121 is smoothly installed, the first elastic opening 24 of the first connection hole 23 is inwardly deformed and extrudes the first positioning block 121 under the interaction of force, so that the first positioning block 121 is prevented from falling off. In both cases, the first guiding surface 124 can guide the first positioning block 121 to be smoothly loaded.

The second anode holder 30 includes an anode body 31 stacked on the anode plate 21, the anode body 31 is cylindrical, three second connection blocks 32 are uniformly distributed on the edge of the anode body 31, each second connection block 32 is provided with a second connection hole 33, each second connection hole 33 corresponds to each second positioning block 122, the second connection holes 33 are provided with second elastic openings 34 penetrating to the outside, and the outer side walls of the second positioning blocks 121 are provided with concave second guide surfaces 126 facing the second elastic openings 34. The second elastic opening 34 and the second guiding surface 126 function in the same way, and are not described in detail herein.

The anode plate 21, the three first connecting blocks 22, the anode body 31 and the three second connecting blocks 32 are all made of high-temperature molybdenum.

The positioning element 40 is located at the top, and plays a role in protecting and isolating the second anode base 30, and includes a positioning ring 41 stacked on the anode body 31, three third connection blocks 42 are uniformly distributed on the edge of the positioning ring 41, each third connection block 42 is provided with a third connection hole 43, each third connection hole 43 corresponds to a third positioning block 123, a third elastic opening 44 penetrating to the outside is arranged on each third connection hole 43, and an inner concave third guide surface 128 arranged on the outer side wall of each third positioning block 123 faces the third elastic opening 44. The third elastic opening 44 and the third guide surface 128 have the same functions as above, and are not described in detail herein. In this embodiment, the material of the positioning ring 41 and the three third connecting blocks 42 is one of 4J29, 4J33, and 4J 34.

In addition, in the above structure, the first anode holder 20, the second anode holder 30 and the positioning element 40 all adopt the structure of three connecting blocks, that is, the positioning plane is formed by the three-jaw positioning structure, so that when the connecting holes on each connecting block are matched with each positioning block, the two electrode holders and the positioning element 40 can be horizontally placed and can be better matched with each positioning block, and the fixing by a mold is not needed when the subsequent clamping is carried out, thereby saving the cost for manufacturing the mold.

In this embodiment, the heights of the first positioning block 121, the second positioning block 122 and the third positioning block 123 are sequentially increased. The specific implementation mode is as follows: the first positioning block 121 is disposed on the top surface of the insulating ceramic ring 11, the second positioning block 122 is disposed on the top surface of a first ceramic post 13, the third positioning block 123 is disposed on the top surface of a second ceramic post 14, and the height of the first ceramic post 13 is smaller than that of the second ceramic post 14. Thus, the first positioning block 121 located at the lowest position is correspondingly fixed to the first anode holder 20 located at the bottommost position, the second positioning block 122 located at the middle height is correspondingly fixed to the second anode holder 30 located at the middle position, and the third positioning block 123 located at the highest position is correspondingly fixed to the positioning element 40 located at the top position. Of course, the first positioning block 121 may be disposed on the third ceramic posts according to actual requirements, as long as the height of the third ceramic posts is less than the height of the first ceramic posts 13.

In this embodiment, the outer wall surfaces of the first ceramic posts 13 and the second ceramic posts 14 are both provided with a groove structure 15. The groove-shaped structure 15 is specifically a transverse groove arranged along the circumferential direction, and since the first ceramic posts 13 are short, the transverse groove is only one, and the second ceramic posts 14 are high, the transverse groove is arranged into two grooves at intervals. The number of the transverse grooves can be increased or decreased according to actual conditions. By providing the above-mentioned groove-shaped structure 15, it is useful to increase the creepage distance of the outer surface of the insulator base 10.

The embodiment of the present invention further provides a space traveling wave tube (not shown in the figures), which includes the above electron gun frame, and due to the adoption of the above electron gun frame, the insulating properties between the first anode holder 20 and the second anode holder 30, and the ground are increased, the parallelism and the concentricity of the electron gun are improved, and at the same time, the light weight is realized, and the requirement of miniaturization of the space traveling wave tube is met.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.