CN210156343U - High-power microwave vacuum tube cathode and filament connector - Google Patents
High-power microwave vacuum tube cathode and filament connector Download PDFInfo
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- CN210156343U CN210156343U CN201920705571.3U CN201920705571U CN210156343U CN 210156343 U CN210156343 U CN 210156343U CN 201920705571 U CN201920705571 U CN 201920705571U CN 210156343 U CN210156343 U CN 210156343U
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Abstract
The utility model belongs to the field of plasma heating, in particular to a high-power microwave vacuum tube cathode and filament connector, which comprises a bottom base supporting structure, a wire cover arranged at the upper end of the base supporting structure, a cathode connector arranged at the upper end of the wire cover and a filament connector arranged in the cathode connector, wherein a supporting spring is arranged between the bottom of the cathode connector and the base supporting structure; the bottom of the outer side of the filament connector is provided with an insulating sleeve. The device can ensure the connection of the high-power microwave vacuum tube and the high-voltage wire, ensures good high-voltage electric contact, is easy to disassemble and assemble, eliminates the influence of the error through the structural design of the cathode and the filament connector, ensures the accurate butt joint of the cathode and the filament interface of the high-power microwave vacuum tube and the connector, and ensures good electric contact.
Description
Technical Field
The invention belongs to the field of plasma heating, and particularly relates to a cathode and filament connector of a high-power microwave vacuum tube of a low-noise wave heating device.
Background
The high-power microwave vacuum tube is a high-power microwave source, the output power reaches megawatt level, the cathode voltage reaches dozens of kilovolts, the filament power reaches hundreds of kilowatts, and the weight of the tube body reaches tonnage level. In a low-clutter heating system of a certain fusion device, a foreign 500kW high-power microwave vacuum tube is adopted. The installation and debugging of the vacuum tube are both developed domestically. In order to facilitate the installation and debugging of the high-power microwave tube, the high-voltage wire cannot be directly welded on the cathode of the vacuum tube and the filament interface, so that a connector is required to be designed to complete the connection between the high-power microwave vacuum tube and the high-voltage wire, the high-voltage electric contact is ensured to be good, and the tube body is easy to disassemble and assemble.
As the weight of the high-power microwave vacuum tube reaches the ton magnitude, the installation can only be hoisted by using a navigation vehicle. In order to ensure safety, the cathode and the filament connector must be fixed in the tube seat of the high-power microwave tube and firmly connected with the cathode and the filament high-voltage wire, and the high-power microwave vacuum tube is installed on the tube seat and simultaneously needs to complete the butt joint of the cathode and the filament interface of the vacuum tube and the cathode and the filament connector, thereby completing the connection of the vacuum tube and the cathode and the filament high-voltage wire.
In the installation process, the horizontal position of the microwave tube is adjusted by the navigation vehicle to align the cathode and the filament interface with the horizontal position of the cathode and the filament connector, and the navigation vehicle has the minimum step diameter, so that the cathode and the filament interface are difficult to be completely aligned, and generally has an error of about 0.2cm, so that the error can be eliminated by the design of the cathode and the filament connector, and the cathode and the filament interface of the microwave tube are ensured to be accurately butted with the connector when the navigation vehicle vertically places the microwave tube on the tube seat. The connector plays a key role in the installation and power supply of the high-power microwave vacuum tube.
Disclosure of Invention
The invention aims to provide a high-power microwave vacuum tube cathode and filament connector which is simple in structure, easy to install and reliable in electric contact.
The technical scheme of the invention is as follows:
a high-power microwave vacuum tube cathode and filament connector comprises a base supporting structure at the bottom, a wire cover arranged at the upper end of the base supporting structure, a cathode connector arranged at the upper end of the wire cover and a filament connector arranged in the cathode connector, wherein a supporting spring is arranged between the bottom of the cathode connector and the base supporting structure; and an insulating sleeve is arranged at the bottom of the outer side of the filament connector.
The cathode connector is of a cylindrical structure with a certain wall thickness, the bottom of the inner side of the cathode connector is of a stepped structure, a boss is machined at the lower end of the outer wall of the cylinder, and a connector lug is installed at the bottom of the cathode connector.
The cathode connector is characterized in that a threaded hole is formed in the lower end of the side wall of the cathode connector, a fixing hole is formed in the corresponding position of the wire cover, and the cathode connector and the wire cover are fixed through the fixing hole, the threaded hole and a screw.
And a plurality of spring pieces extending outwards are uniformly arranged on the outer edge of the cylinder at the upper end of the cathode connector.
The filament connector comprises two parts, wherein one part is a cylinder with a certain wall thickness at the upper part, the other part is a cylindrical structure at the lower part, and the outer diameter of the cylinder is smaller than that of the cylinder.
And a plurality of spring pieces extending outwards are uniformly arranged on the outer edge of the top of the filament connector.
The insulating sleeve is in a step shape, and the shape of the insulating sleeve is matched with the step-shaped structure at the bottom of the cathode connector.
The insulating sleeve is made of polytetrafluoroethylene materials.
The base supporting structure comprises a base and a spring seat fixed on the base, the spring seat is cylindrical, and the spring seat is located outside the supporting spring.
One end of the supporting spring is welded on the upper surface of the base supporting structure, and the other end of the supporting spring is welded at the bottom of the cathode connecting structure.
The invention has the following remarkable effects:
the device can ensure the connection of the high-power microwave vacuum tube and the high-voltage wire, ensures good high-voltage electric contact and is easy to disassemble and assemble. In addition, in the hoisting process of the aircraft, under the conditions that the aircraft has the minimum step diameter error and is difficult to align completely, the influence of the error is eliminated through the structural design of the cathode and the filament connector, the cathode and the filament interface of the high-power microwave vacuum tube are ensured to be in butt joint with the connector accurately, and the electrical contact is good.
The support spring is designed, the positions of the cathode and the filament connecting structure in the vertical and horizontal directions can be finely adjusted through stretching and swinging in the horizontal direction, and the error caused by the minimum step diameter of the aerocar when the high-power microwave vacuum tube interface and the connector are aligned is eliminated;
the good electrical contact of filament connection structure and high power microwave vacuum tube filament interface is accomplished to the spring leaf of filament connector, fixes filament high-voltage wire through the connector lug of filament connection structure bottom simultaneously to accomplish being connected of filament high-voltage wire and high power microwave vacuum tube cathode filament interface, make vacuum tube filament interface and connector abundant electrical contact, the better influence of eliminating the position change of the deformation of spring simultaneously.
The spring piece of the cathode connector completes good electric contact between the cathode connecting structure and the cathode interface of the high-power microwave vacuum tube, and meanwhile, the cathode high-voltage wire is fixed through the connector lug at the bottom of the cathode connecting structure, so that the cathode high-voltage wire is connected with the cathode interface of the high-power microwave vacuum tube, the cathode interface of the vacuum tube is in full electric contact with the connector, and meanwhile, the influence of position change is well eliminated due to the deformation of the spring.
The wire cover is used for preventing the cathode power supply wire and the filament power supply wire from contacting with other wires and other substances on the high-power microwave vacuum tube base at the connector connection position,
the base supporting structure is provided with the spring cover, the horizontal deformation of the spring is limited within a reasonable range, and the problem that the high-power microwave vacuum tube cannot be butted with the connector due to the overlarge horizontal deformation of the spring when the high-power microwave vacuum tube is hoisted and installed by a crane is avoided.
Drawings
FIG. 1 is a schematic diagram of a high power microwave vacuum tube cathode and filament connector;
FIG. 2a is a schematic view of a cathode connector;
FIG. 2b is a top view of FIG. 2 a;
FIG. 3a is a schematic view of a filament connector;
FIG. 3b is a top view of FIG. 3 a;
FIG. 4a is a schematic view of a base support structure;
FIG. 4b is a top view of FIG. 4 a;
FIG. 5 is a schematic view of a wire cover aperture;
in the figure: 1. a filament connector; 2. a cathode connector; 3. a support spring; 4. a wire cover; 5. a base support structure; 6. a threaded hole; 7. a connector lug; 8. a spring plate; 9. an insulating sleeve; 10. a fixing hole; 11. threading holes; 501. a base; 502. a spring seat.
Detailed Description
The invention is further illustrated by the accompanying drawings and the detailed description.
As shown in fig. 1, the high power microwave vacuum tube cathode and filament connector includes a base support structure 5 at the bottom, a wire cover 4 mounted at the upper end of the base support structure 5, a cathode connector 2 mounted at the upper end of the wire cover 4, and a filament connector 1 mounted inside the cathode connector 2, while a support spring 3 is mounted between the bottom of the cathode connector 2 and the base support structure 5.
As shown in fig. 2a and 2b, the cathode connector 2 has a cylindrical structure with a certain wall thickness, the inner bottom is processed into a stepped structure with gradually decreasing inner diameter, and the lower end of the outer wall of the cylinder is processed with a boss. The bottom of the cathode connector 2 is provided with a connector lug 7, the lower end of the side wall is provided with a threaded hole 6, and a plurality of spring pieces 8 extending outwards are uniformly arranged on the outer edge of a cylinder at the upper end of the cathode connector 2.
The cathode connector 2 is mounted on the upper end of the wire cover 4 by a boss, and the cathode connector 6 and the wire cover 4 are fixedly connected by screws or the like through the screw holes 6.
The spring piece 8 is used for completing good electric contact between the cathode of the high-power microwave vacuum tube and the cathode connector, and when the device is in butt joint with the cathode interface of the vacuum tube, the spring piece generates deformation compression so that the cathode interface of the vacuum tube is in full electric contact with the connector.
The connector lug 7 is a nut and can fix the cathode high-voltage power supply line with the connector.
As shown in fig. 3a and 3b, the filament connector 1 comprises two parts, one part being a cylinder with a certain wall thickness at the top and the other part being a cylindrical structure at the bottom, the outer diameter of the cylinder being smaller than the outer diameter of the cylinder. A plurality of spring pieces 8 extending outwards are uniformly arranged along a circle at the top of the upper cylinder. When the vacuum tube filament interface is butted with the filament connecting structure, the spring piece 8 generates deformation compression, so that the vacuum tube filament interface is in full electrical contact with the connector. An insulating sleeve 9 is tightly mounted on the outside of the cylindrical structure and the outside of the bottom of the cylinder. The insulating sleeve 9 is stepped and has a shape matching the stepped structure of the bottom of the cathode connector 2. A terminal 7 is also mounted at the bottom of the filament connector 1 for connection to a filament high voltage supply line.
The insulating sleeve 9 is made of polytetrafluoroethylene material and is used for high-voltage isolation of filament voltage and cathode voltage.
As shown in fig. 4, the base support structure 5 includes a base 501 and a spring seat 502 fixed to the base 501, the spring seat 502 is cylindrical, and a screw hole is formed in the base 501. The base 501 is fixedly mounted on the tube base by screws. The spring cover 502 is located outside the supporting spring 3, plays a role in limiting the supporting spring 3, and avoids the problem that the horizontal 3 deformation of the supporting spring is too large to cause the butt joint of the high-power microwave vacuum tube and the connector when the high-power microwave vacuum tube is hoisted by a crane.
As shown in fig. 5, the wire cover 4 is provided with a fixing hole 10 and a threading hole 11. The fixing hole 10 corresponds in position to the screw hole 6 of the cathode connector 2 for fixing the cathode connector 2 and the wire cover 4. The threading holes 11 are used for introducing cathode supply lines and filament supply lines.
The connection mode of supporting spring 3 can adopt the welding, and one end welding is at base 501 upper surface of base bearing structure 5, and the other end welding is in negative pole connection structure 2 bottoms, and supporting spring 3 can be tensile in vertical direction, takes place the swing deformation simultaneously, can eliminate the too big alignment error that arouses of step when the navigation car hoist and mount high power microwave vacuum tube.
Claims (10)
1. A high power microwave vacuum tube cathode and filament connector is characterized in that: the filament lamp comprises a base supporting structure (5) at the bottom, a wire cover (4) arranged at the upper end of the base supporting structure (5), a cathode connector (2) arranged at the upper end of the wire cover (4) and a filament connector (1) arranged in the cathode connector (2), wherein a supporting spring (3) is arranged between the bottom of the cathode connector (2) and the base supporting structure (5); and an insulating sleeve (9) is arranged at the bottom of the outer side of the filament connector (1).
2. The high power microwave vacuum tube cathode and filament connector of claim 1, wherein: the cathode connector (2) is of a cylindrical structure with a certain wall thickness, the bottom of the inner side of the cathode connector is of a stepped structure, a boss is machined at the lower end of the outer wall of the cylinder, and a connector lug (7) is installed at the bottom of the cathode connector (2).
3. The high power microwave vacuum tube cathode and filament connector of claim 2, wherein: the lower end of the side wall of the cathode connector (2) is provided with a threaded hole (6), a corresponding position of the wire cover (4) is provided with a fixing hole, and the cathode connector (2) and the wire cover (4) are fixed through the fixing hole, the threaded hole (6) and a screw.
4. The high power microwave vacuum tube cathode and filament connector of claim 3, wherein: a plurality of spring pieces (8) extending outwards are uniformly arranged along a circle on the outer edge of the cylinder at the upper end of the cathode connector (2).
5. The high power microwave vacuum tube cathode and filament connector of claim 2, wherein: the filament connector (1) comprises two parts, wherein one part is a cylinder with a certain wall thickness at the upper part, the other part is a cylindrical structure at the lower part, and the outer diameter of the cylinder is smaller than that of the cylinder.
6. The high power microwave vacuum tube cathode and filament connector of claim 5, wherein: the filament connector (1) is characterized in that a plurality of spring pieces (8) extending outwards are uniformly arranged on the outer edge of the top of the filament connector (1).
7. The high power microwave vacuum tube cathode and filament connector of claim 2, wherein: the insulating sleeve (9) is in a step shape, and the shape of the insulating sleeve is matched with the step-shaped structure at the bottom of the cathode connector (2).
8. The high power microwave vacuum tube cathode and filament connector of claim 7, wherein: the insulating sleeve (9) is made of polytetrafluoroethylene materials.
9. The high power microwave vacuum tube cathode and filament connector of claim 2, wherein: the base supporting structure (5) comprises a base (501) and a spring seat (502) fixed on the base (501), the spring seat (502) is cylindrical, and the spring seat (502) is located outside the supporting spring (3).
10. The high power microwave vacuum tube cathode and filament connector of claim 2, wherein: one end of the supporting spring (3) is welded on the upper surface of the base 501 of the base supporting structure (5), and the other end is welded at the bottom of the cathode connector (2).
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CN201920705571.3U CN210156343U (en) | 2019-05-17 | 2019-05-17 | High-power microwave vacuum tube cathode and filament connector |
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CN201920705571.3U CN210156343U (en) | 2019-05-17 | 2019-05-17 | High-power microwave vacuum tube cathode and filament connector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111952136A (en) * | 2019-05-17 | 2020-11-17 | 核工业西南物理研究院 | High-power microwave vacuum tube cathode and filament connector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111952136A (en) * | 2019-05-17 | 2020-11-17 | 核工业西南物理研究院 | High-power microwave vacuum tube cathode and filament connector |
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