CN112820611A - Grounding traveling wave tube - Google Patents
Grounding traveling wave tube Download PDFInfo
- Publication number
- CN112820611A CN112820611A CN202011642260.0A CN202011642260A CN112820611A CN 112820611 A CN112820611 A CN 112820611A CN 202011642260 A CN202011642260 A CN 202011642260A CN 112820611 A CN112820611 A CN 112820611A
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- China
- Prior art keywords
- conductive
- traveling wave
- wave tube
- hole
- flexible conductive
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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.)
- Pending
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention relates to the field of traveling wave tubes, in particular to a grounded traveling wave tube which comprises an electron gun, a collector and a tube shell for connecting the electron gun and the collector, and further comprises a conductive piece, two sections of spiral lines arranged in the tube shell and at least three clamping rods, wherein each clamping rod clamps the two sections of spiral lines, the two sections of spiral lines are arranged at intervals, the conductive piece is connected with the spiral lines close to the electron gun, and the conductive piece is provided with a grounding end for leading out the tube shell.
Description
Technical Field
The invention relates to the field of traveling wave tubes, in particular to a grounding traveling wave tube.
Background
The traveling wave tube is a microwave power amplifier which is widely applied, and is widely applied to the fields of radars, microwave remote sensing and the like. The travelling wave tube comprises an emitter, a tube shell and a collector, a spiral line is arranged in the tube shell to amplify radio-frequency signals, when the travelling wave tube is used, large current is often generated due to reasons such as electronic emission abnormity in the travelling wave tube, the parts such as the spiral line are easily damaged by the large current, and the use stability of the travelling wave tube is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grounded traveling wave tube, which can rapidly lead out a large current to the outside through an external conductive piece so as to prevent the large current from damaging the structural components of the traveling wave tube or other equipment components connected with the traveling wave tube, thereby effectively solving the problems in the prior art.
In order to solve the above problems, the present invention provides a grounded traveling wave tube, including an electron gun, a collector, a tube shell connecting the electron gun and the collector, the traveling wave tube further including a conductive member, two helical lines disposed in the tube shell, and at least three clamping rods, each clamping rod clamping two helical lines, the two helical lines being disposed at an interval, the conductive member being connected to the helical line near the electron gun, and the conductive member having a ground terminal leading out of the tube shell.
Further, the conductive member includes a flexible conductive portion, and the flexible conductive portion is connected to the ground terminal.
Further, the case is provided with a grounding hole for leading out the flexible conductive part, the grounding terminal closes the grounding hole, and the grounding terminal and the flexible conductive part are separated parts.
Further, the flexible conductive part is welded to the spiral line.
Further, the grounding terminal is a conductive seat welded in the grounding hole.
Further, the grounding hole is a stepped hole, the flexible conductive part is led out to the bottom surface of the stepped hole, and the conductive seat tightly presses the flexible conductive part on the bottom surface of the stepped hole.
Further, the conductive member is a platinum strip.
Further, the conductive seat is provided with a through hole for leading out the flexible conductive part, and the flexible conductive part is welded in the through hole.
Further, the tube shell is provided with a grounding hole, the conductive piece comprises a grounding end and a conductive rod, the grounding end seals the grounding hole, and one end of the conductive rod, which is far away from the grounding end, is provided with a contact part which is abutted to the spiral line.
Furthermore, the conducting pieces are respectively arranged at the two sections of the spiral lines.
The grounding traveling wave tube has the beneficial effects that the grounding traveling wave tube can lead out large current to the outside quickly through the external conductive piece so as to prevent the large current from damaging the structural component of the traveling wave tube or other equipment components connected with the traveling wave tube, and effectively solve the problems in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a partially enlarged structure and schematic view at a in fig. 1.
Fig. 3 is a schematic structural diagram of a conductive device according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a conductive device according to another embodiment of the present invention.
Wherein: 1. a pipe shell; 2. a conductive member; 201. a ground terminal; 202. a flexible conductive portion; 203. a conductive rod; 204. a contact portion; 3. a helical line; 4. a clamping rod; 5. a ground hole; 6. and a through hole.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
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; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present invention, as shown in fig. 1 to 4, a grounded traveling wave tube is provided, which includes an electron gun, a collector, a tube case 1 connecting the electron gun and the collector, the traveling wave tube further includes a conductive member 2, two spiral lines 3 disposed in the tube case 1, and at least three clamping rods 4, each clamping rod 4 clamps the two spiral lines 3, the two spiral lines 3 are disposed at intervals, the conductive member 2 is connected to the spiral line 3 near the electron gun, and the conductive member 2 has a grounding end 201 leading out of the tube case 1.
When the traveling wave tube is used, when the traveling wave tube is abnormally ignited, the spiral line 3 close to the electron gun instantly captures larger current, and the large current can be rapidly led out to the outside through the external conductive piece 2, so that the structural parts of the traveling wave tube or other equipment parts connected with the traveling wave tube are prevented from being damaged by the large current. Moreover, because the conductive piece 2 is directly connected with the spiral line 3 and extends to the outer side of the traveling wave tube, the conductive piece 2 can directly conduct heat of the spiral line 3, so that the working temperature of the spiral line 3 is increased, and the working stability of the traveling wave tube is further maintained.
With regard to the structure of the conductive member 2 in the present invention, in a preferred embodiment, the conductive member 2 includes a flexible conductive portion 202, and the flexible conductive portion 202 is connected to the ground terminal 201. By providing the flexible conductive part 202, when the flexible conductive part 202 is connected to the spiral wire 3, the flexible conductive part 202 can be conveniently connected to the spiral wire 3, and in some embodiments, when the spiral wire 3 can be loaded into the package 1, the spiral wire 3 can be connected to the flexible conductive part 202 in advance, and after the flexible conductive part 202 is loaded into the package 1, the grounding terminal 201 can be connected to the flexible conductive part 202.
In the illustrated embodiment, more specifically, the package 1 is provided with a ground hole 5 for the flexible conductive part 202 to be led out, the ground terminal 201 seals the ground hole 5, and the ground terminal 201 and the flexible conductive part 202 are separated. With this when the assembly, can be earlier in flexible guide point portion and helix 3 connect the back together pack in the tube 1, draw flexible conductive part 202 by grounding hole 5 again, and seal grounding hole 5 back fixed flexible conductive part 202 through earthing terminal 201, through such setting, can be in the stable connection of meat flexible conductive part 202 and helix 3 in the tube 1 outside, moreover, be convenient for draw flexible conductive part in by tube 1 through grounding hole 5, seal grounding hole 5 when installation earthing terminal 201, in order to keep the integrality of tube 1.
As for the connection between the flexible conductive part 202 and the helical wire 3, in a preferred embodiment, the flexible conductive part 202 is welded to the helical wire 3.
Alternatively, the flexible conductive portion 202 and the helical wire 3 may be formed in other manners, for example, the flexible conductive portion 202 is directly formed integrally with the end portion of the helical wire 3.
With regard to the connection arrangement between the ground terminal 201 and the package 1, in the illustrated embodiment, it is further preferred that the ground terminal 201 is a conductive socket soldered to the ground hole 5. The conductive seat is fixed in a welding mode, so that the connecting seat can be fixed stably, and a gap between the connecting seat and the wall of the grounding hole 5 can be sealed by welding.
For the connection between the grounding end 201 and the flexible conductive portion 202, in the illustrated embodiment, further specifically, the grounding hole 5 is a stepped hole, the flexible conductive portion 202 is led out to the bottom surface of the stepped hole, and the conductive seat presses the flexible conductive portion 202 against the bottom surface of the stepped hole. As shown in the figure, in assembly, the flexible conductive part 202 is led out from the package 1 and then placed on the upper step surface of the step hole (may be bonded and preliminarily fixed), and then the grounding terminal 201 is installed, so that the conductive connection between the grounding terminal 201 and the flexible conductive part 202 can be easily realized, and the conductive socket is easily positioned and installed.
For the connection between the flexible conductive part 202 and the ground terminal 201, other methods may be adopted, for example, the flexible conductive part 202 is directly soldered to the bottom of the ground terminal 201.
Further alternatively, as shown in the figure, the conductive socket may have a through hole 6 through which the flexible conductive portion 202 is led out, and the flexible conductive portion 202 may be welded to the through hole 6. Therefore, during assembly, after the flexible conductive part 202 is led out from the package 1, the flexible conductive part 202 penetrates through the through hole 6, the connection base is mounted in the grounding hole 5, and after the flexible conductive part 202 is pulled outwards to a set position, the flexible conductive part 202 is welded in the through hole 6.
In the illustrated embodiment, the conductive member 2 is a platinum strip, more specifically.
With respect to the arrangement of the conductive member 2, the form is not limited to the form shown in the figure, and in an alternative embodiment, the arrangement may be as shown in the figure, the package 1 has a grounding hole 5, the conductive member 2 includes a grounding terminal 201 and a conductive rod 203, the grounding terminal 201 closes the grounding hole 5, and an end of the conductive rod 203 far away from the grounding terminal 201 is formed with a contact portion 204 abutting against the spiral wire 3. Therefore, after the package 1 and the spiral wire 3 are assembled, the conductive member 2 can be installed in the grounding hole 5, so that the structure or the method for assembling the package 1 and the spiral wire 3 is not limited. Moreover, since the conductive rod 203 is a rigid rod, the contact portion 204 at the inner end of the conductive rod 203 can be kept in conductive contact with the spiral wire 3 by controlling the mounting position precision between the grounding end 201 and the grounding hole 5, and the abutting force applied to the spiral wire 3 by the contact end is reduced, so that abnormal use caused by deformation of the spiral wire 3 due to pressure is prevented, and the connection of the conductive rod 203 is more stable.
In order to further improve the safety and stability of the traveling wave tube in use in a preferred embodiment, the conductive members 2 may be respectively disposed at two segments of the helical wire 3 as shown in the figure.
It should be noted that, in the above embodiment, the installation of the conductive component 2 is not limited to the present invention, and in an alternative embodiment, the tube case 1 may be further divided into two parts, the clamping rod 4 is also divided into two parts, the two spiral lines 3 are respectively combined with the two clamping rods 4 to form two embedded components, the two embedded components are respectively placed into the two tube cases 1, and then the two tube cases 1 are welded together. After two built-in parts are respectively arranged in two pipe shells 1, the welding ends of the two pipe shells 1 can be respectively connected with a spiral line 3 in the pipe shells 1 through conductive parts 2, the conductive parts 2 comprise conductive parts and grounding ends 201, after the built-in parts are arranged in the pipe shells 1, the conductive parts are connected with the spiral line 3 close to the welding ends, at the moment, the grounding ends 201 can be fixed at the welding ends of the pipe shells 1, the operation is easy, and then the two pipe shells 1 are connected together.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides a ground connection travelling wave tube, includes electron gun, collector, connection the tube of electron gun and collector, its characterized in that, the travelling wave tube still include electrically conductive, set up in two sections helices, at least three supporting rod in the tube, each two sections helices of supporting rod centre gripping, two sections the helix interval sets up, electrically conductive with be close to the helix of electron gun is connected, just electrically conductive has draws forth the earthing terminal of tube.
2. The grounded traveling wave tube according to claim 1, wherein the conductive member comprises a flexible conductive portion, and the flexible conductive portion is connected to the ground terminal.
3. The grounded traveling wave tube according to claim 2, wherein the tube case is provided with a ground hole for the flexible conductive part to be led out, the ground terminal closes the ground hole, and the ground terminal and the flexible conductive part are separate members.
4. A grounded traveling wave tube according to claim 3, wherein the flexible conductive portion is welded to the helical wire.
5. The grounded traveling wave tube according to claim 3, wherein the ground terminal is a conductive pad soldered to the ground hole.
6. The grounded traveling wave tube according to claim 5, wherein the ground hole is a stepped hole, the flexible conductive part is led out to a bottom surface of the stepped hole, and the conductive seat presses the flexible conductive part against the bottom surface of the stepped hole.
7. A grounded traveling wave tube according to claim 2, wherein the conductive member is a platinum ribbon.
8. A grounded traveling wave tube according to claim 3, wherein the conductive housing has a through hole for the flexible conductive portion to be led out, and the flexible conductive portion is welded to the through hole.
9. The grounded traveling wave tube according to claim 1, wherein the tube case has a ground hole, the conductive member includes a ground terminal and a conductive rod, the ground terminal closes the ground hole, and an end of the conductive rod away from the ground terminal is formed with a contact portion abutting against the helical wire.
10. A grounded traveling wave tube according to claim 1, wherein said conductive member is provided at each of two of said helical lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011642260.0A CN112820611A (en) | 2020-12-31 | 2020-12-31 | Grounding traveling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011642260.0A CN112820611A (en) | 2020-12-31 | 2020-12-31 | Grounding traveling wave tube |
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| Publication Number | Publication Date |
|---|---|
| CN112820611A true CN112820611A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011642260.0A Pending CN112820611A (en) | 2020-12-31 | 2020-12-31 | Grounding traveling wave tube |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3786301A (en) * | 1971-11-09 | 1974-01-15 | English Electric Valve Co Ltd | Travelling wave tubes |
| JPH07245064A (en) * | 1994-03-01 | 1995-09-19 | Origin Electric Co Ltd | Power source device for traveling wave tube |
| US5500621A (en) * | 1995-04-03 | 1996-03-19 | Martin Marietta Corp. | Travelling-wave tube protection arrangement |
| US20050077831A1 (en) * | 2003-10-08 | 2005-04-14 | Nec Microwave Tube, Ltd. | Microwave tube system and microwave tube |
| CN204289358U (en) * | 2014-11-25 | 2015-04-22 | 安徽华东光电技术研究所 | Travelling wave tube fin and helix TWT heat abstractor |
| US20170140892A1 (en) * | 2014-06-30 | 2017-05-18 | Nec Network And Sensor Systems, Ltd. | Traveling wave tube and high-frequency circuit system |
-
2020
- 2020-12-31 CN CN202011642260.0A patent/CN112820611A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3786301A (en) * | 1971-11-09 | 1974-01-15 | English Electric Valve Co Ltd | Travelling wave tubes |
| JPH07245064A (en) * | 1994-03-01 | 1995-09-19 | Origin Electric Co Ltd | Power source device for traveling wave tube |
| US5500621A (en) * | 1995-04-03 | 1996-03-19 | Martin Marietta Corp. | Travelling-wave tube protection arrangement |
| US20050077831A1 (en) * | 2003-10-08 | 2005-04-14 | Nec Microwave Tube, Ltd. | Microwave tube system and microwave tube |
| US20170140892A1 (en) * | 2014-06-30 | 2017-05-18 | Nec Network And Sensor Systems, Ltd. | Traveling wave tube and high-frequency circuit system |
| CN204289358U (en) * | 2014-11-25 | 2015-04-22 | 安徽华东光电技术研究所 | Travelling wave tube fin and helix TWT heat abstractor |
Non-Patent Citations (1)
| Title |
|---|
| 黄绳武;: "Ka波段的新进展:一个10瓦连续波螺旋线型行波管", 真空电子技术, no. 04, 31 December 1979 (1979-12-31), pages 10 - 13 * |
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