CN221381480U - Air-tight seal millimeter wave coaxial waveguide converter - Google Patents
Air-tight seal millimeter wave coaxial waveguide converter Download PDFInfo
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- CN221381480U CN221381480U CN202323153909.4U CN202323153909U CN221381480U CN 221381480 U CN221381480 U CN 221381480U CN 202323153909 U CN202323153909 U CN 202323153909U CN 221381480 U CN221381480 U CN 221381480U
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- millimeter wave
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- 239000012212 insulator Substances 0.000 claims abstract description 40
- 239000011521 glass Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses an airtight millimeter wave coaxial waveguide converter, which comprises a waveguide cavity, a flange shell, an insulator, a jack piece, glass powder and a contact pin, wherein the flange shell is arranged on the flange shell; the waveguide cavity is provided with a waveguide cavity, the flange shell is detachably connected to the outer wall of the waveguide cavity, a window for communicating the flange shell and the waveguide cavity is arranged on the outer wall of the waveguide cavity, the insulator is arranged in the flange shell, and the insulator is provided with a jack piece; one end of the contact pin extends into the flange shell to be in plug-in fit with the jack component, the other end of the contact pin extends into the waveguide cavity, and the contact pin and the flange shell are sealed by glass powder to form a sealed shell. The airtight millimeter wave coaxial waveguide converter realizes sealing by utilizing the gap between the glass powder closed contact pin and the flange shell, and effectively enhances the air tightness so as to meet the use requirement. The flange shell and the waveguide cavity can be detachably matched, so that the processing and assembling difficulty can be reduced, and the production efficiency and the product size precision can be improved.
Description
Technical Field
The utility model relates to the technical field of microwave devices, in particular to an airtight seal millimeter wave coaxial waveguide converter.
Background
In various radar systems, signal transmission in the field of radio frequency microwaves is precise, and besides the transmission of wireless signals, transmission lines are not needed, and most of scenes also need transmission lines for signal transmission, wherein coaxial lines and waveguides are widely used for transmitting microwave radio frequency energy. The most widely used waveguides in the market are rectangular waveguides, and the coaxial lines most commonly used for communication are coaxial cable assemblies of 50Ω, and the two transmission lines have great differences in size and material and transmission characteristics. However, due to its wide application, it is often the case that two transmission lines need to be interconnected, and a coaxial waveguide converter is required. Waveguide coaxial converters are indispensable in various radar systems, precision guidance systems, and test equipment. In some occasions (such as nuclear power stations, aerospace and the like), the millimeter wave coaxial waveguide converter is required to have the performance of air tightness and high pressure resistance, so that it is necessary to design an air-tight millimeter wave coaxial waveguide converter with high air tightness.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: the airtight millimeter wave coaxial waveguide converter is high in air tightness.
In order to solve the technical problems, the utility model adopts the following technical scheme: an airtight millimeter wave coaxial waveguide converter comprises a waveguide cavity, a flange shell, an insulator, a jack piece, glass powder and a contact pin; the waveguide cavity is provided with a waveguide cavity, the flange shell is detachably connected to the outer wall of the waveguide cavity, a window for communicating the flange shell and the waveguide cavity is arranged on the outer wall of the waveguide cavity, the insulator is arranged in the flange shell, and the insulator is provided with a jack piece; one end of the contact pin extends into the flange shell to be in plug-in fit with the jack component, the other end of the contact pin extends into the waveguide cavity, and the contact pin and the flange shell are sealed by glass powder to form a sealed shell.
Further, the flange shell is connected with the waveguide cavity through screws.
Further, the waveguide cavity comprises a main cavity and a cover plate, the main cavity is provided with the waveguide cavity and a window, the waveguide cavity is communicated with the top surface and the bottom surface of the main cavity, and the cover plate is detachably connected with the main cavity to close the top opening of the waveguide cavity.
Further, the cover plate is connected with the main cavity through screws.
Further, a sealing ring is arranged between the flange shell and the waveguide cavity.
Further, a first annular groove for accommodating the sealing ring is formed in the flange shell or the waveguide cavity.
Further, the jack component penetrates through the insulator, and a second annular groove matched with the insulator is formed in the jack component.
Further, a third annular groove matched with the insulator is formed in the inner wall surface of the flange shell.
Further, a plurality of positioning columns are arranged on the waveguide cavity.
Further, the waveguide cavity is provided with a plurality of mounting holes.
The utility model has the beneficial effects that: the airtight millimeter wave coaxial waveguide converter realizes sealing by utilizing the gap between the glass powder closed contact pin and the flange shell, and effectively enhances the air tightness so as to meet the use requirement. The flange shell and the waveguide cavity can be detachably matched, so that the processing and assembling difficulty can be reduced, and the production efficiency and the product size precision can be improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a hermetically sealed millimeter wave coaxial waveguide converter according to a first embodiment of the present utility model;
Fig. 2 is a cross-sectional view of a hermetically sealed millimeter wave coaxial waveguide converter according to a first embodiment of the present utility model;
Fig. 3 is a front view of an insulating member of a hermetically sealed millimeter wave coaxial waveguide converter according to the first embodiment of the present utility model.
Description of the reference numerals:
1. A waveguide cavity; 11. a main cavity; 111. a waveguide cavity; 112. a mounting hole; 12. a cover plate;
2. a flange housing; 21. a first ring groove; 22. a third ring groove;
3. an insulator; 31. a through hole;
4. A socket member; 41. a second ring groove;
5. Glass powder;
6. A contact pin;
7. a seal ring;
8. and positioning columns.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, an airtight millimeter wave coaxial waveguide converter includes a waveguide cavity 1, a flange housing 2, an insulator 3, an insertion hole member 4, glass frit 5 and a pin 6; the waveguide cavity 1 is provided with a waveguide cavity 111, the flange shell 2 is detachably connected to the outer wall of the waveguide cavity 1, a window for communicating the flange shell 2 and the waveguide cavity 111 is arranged on the outer wall of the waveguide cavity 1, the insulator 3 is arranged in the flange shell 2, and the insulator 3 is provided with a jack piece 4; one end of the contact pin 6 extends into the flange shell 2 to be in plug-in fit with the jack component 4, the other end of the contact pin 6 extends into the waveguide cavity 1, and the contact pin 6 and the flange shell 2 are sealed by glass powder 5 to form a sealed shell.
From the above description, the beneficial effects of the utility model are as follows: the airtight millimeter wave coaxial waveguide converter utilizes the glass powder 5 to seal the gap between the pin 6 and the flange shell 2 to realize sealing, thereby effectively enhancing the air tightness to meet the use requirement. The flange shell 2 and the waveguide cavity 1 can be detachably matched, so that the processing difficulty and the assembly difficulty can be reduced, and the production efficiency and the product size precision can be improved.
Further, the flange shell 2 is connected with the waveguide cavity 1 through screws.
As can be seen from the above description, the connection between the flange housing 2 and the waveguide cavity 1 is simple, and is convenient for production and assembly.
Further, the waveguide cavity 1 includes a main cavity 11 and a cover plate 12, the main cavity 11 is provided with the waveguide cavity 111 and a window, the waveguide cavity 111 is communicated with the top surface and the bottom surface of the main cavity 11, and the cover plate 12 is detachably connected to the main cavity 11 to close the top opening of the waveguide cavity 111.
As can be seen from the above description, the waveguide cavity 111 is convenient to manufacture, which is beneficial to reducing the production difficulty and improving the dimensional accuracy.
Further, the cover plate 12 is connected with the main cavity 11 through screws.
As can be seen from the above description, the cover plate 12 is connected with the main cavity 11 in a simple manner, so that the assembly is convenient.
Further, a sealing ring 7 is arranged between the flange shell 2 and the waveguide cavity 1.
As is clear from the above description, the sealing ring 7 is used for sealing the assembly gap between the flange housing 2 and the waveguide cavity 1, so as to further enhance the air tightness of the airtight millimeter wave coaxial waveguide converter.
Further, the flange housing 2 or the waveguide cavity 1 is provided with a first ring groove 21 for accommodating the sealing ring 7.
As is apparent from the above description, the first ring groove 21 is used to limit the position of the seal ring 7 and accommodate the pressed seal ring 7 so that the flange housing 2 is close to the wall surface of the waveguide cavity 1.
Further, the jack member 4 penetrates through the insulator 3, and a second annular groove 41 matched with the insulator 3 is formed in the jack member 4.
As is apparent from the above description, the second ring groove 41 serves to restrict the relative positions of the socket member 4 and the insulator 3 to improve the assembly accuracy of the socket member 4.
Further, a third ring groove 22 is provided on the inner wall surface of the flange housing 2 to be engaged with the insulator 3.
As is apparent from the above description, the third ring groove 22 serves to restrict the relative positions of the flange housing 2 and the insulator 3 to improve the assembly accuracy of the insulator 3.
Further, a plurality of positioning posts 8 are arranged on the waveguide cavity 1.
From the above description, the positioning posts 8 are used to ensure accurate alignment of the waveguide cavity 1 and the waveguide cavity 111 of the antenna or radar.
Further, the waveguide cavity 1 is provided with a plurality of mounting holes 112.
As can be seen from the above description, the hermetically sealed millimeter wave coaxial waveguide converter can be mounted at a predetermined position through the plurality of mounting holes 112.
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: an airtight millimeter wave coaxial waveguide converter comprises a waveguide cavity 1, a flange shell 2, an insulator 3, a jack piece 4, glass powder 5 and a contact pin 6; the waveguide cavity 1 is provided with a waveguide cavity 111, the flange shell 2 is detachably connected to the outer wall surface of the waveguide cavity 1, a window for communicating the flange shell 2 and the waveguide cavity 111 is arranged on the outer wall of the waveguide cavity 1, the insulator 3 is arranged in the flange shell 2, and the insulator 3 is provided with a jack piece 4; one end of the contact pin 6 extends into the flange shell 2 to be in plug-in fit with the jack component 4, the other end of the contact pin 6 penetrates through the window to extend into the waveguide cavity 1, and the contact pin 6 and the flange shell 2 are sintered and sealed by glass powder 5 to form a sealed shell. Specifically, the inner cavity of the flange shell 2 is cylindrical, and the contact pin 6 and the inner cavity of the flange shell 2 are coaxially arranged. Protruding lugs are respectively arranged on two sides of one end of the flange shell 2, which is close to the waveguide cavity 1, and through holes for screws to pass through are respectively arranged on the two lugs, and threaded holes matched with the screws are arranged on the outer wall surface of the waveguide cavity 1, so that the flange shell 2 is connected with the waveguide cavity 1 through the screws. The insulator 3 is annular, and the socket member 4 penetrates the insulator 3. The insulator 3 is preferably a PEI material.
The waveguide cavity 1 comprises a main cavity 11 and a cover plate 12, the main cavity 11 is provided with a waveguide cavity 111 and a window, the waveguide cavity 111 is communicated with the top surface and the bottom surface of the main cavity 11, and the window is communicated with the waveguide cavity 111 and the side wall surface of the main cavity 11; the cover plate 12 is detachably attached to the main cavity 11 to close the top opening of the waveguide cavity 111. Specifically, the cross section of the waveguide cavity 111 is in a rounded rectangle, and the waveguide cavity 111 is formed by adopting a slow wire-feeding process. Two sides of the cover plate 12 are respectively provided with a through hole for a screw to pass through, so that the cover plate 12 is connected with the main cavity 11 through the screw. The surface roughness of the waveguide cavity 111 is less than or equal to 0.8um.
A sealing ring 7 is arranged between the flange shell 2 and the waveguide cavity 1. The sealing ring 7 is preferably an O-ring 7. The surface of the flange shell 2 close to the waveguide cavity 1 is provided with a first annular groove 21 for accommodating the sealing ring 7, and the first annular groove 21 is arranged around one end opening of the inner cavity of the flange shell 2. The first ring groove 21 has a rectangular cross section. In other embodiments, it is also possible that the first annular groove 21 is formed on one surface of the waveguide cavity 1 near the flange housing 2, or that the flange housing 2 and the waveguide cavity 1 are both provided with the first annular groove 21.
The jack member 4 penetrates the insulator 3, and a second annular groove 41 matched with the insulator 3 is formed in the jack member 4. Specifically, the socket member 4 is press-fitted into the insulator 3. The second ring groove 41 serves to restrict the relative positions of the socket member 4 and the insulator 3 to improve the assembly accuracy of the socket member 4.
The flange housing 2 has a third annular groove 22 provided on an inner wall surface thereof, which engages with the insulator 3. Specifically, the insulator 3 is press-fitted into the flange housing 2. The third ring groove 22 is used for limiting the relative positions of the flange housing 2 and the insulator 3 so as to improve the assembly accuracy of the insulator 3. Preferably, as shown in fig. 3, six through holes 31 are formed in the insulator 3 to satisfy the electrical impedance requirement in order to compensate for the impedance.
The waveguide cavity 1 is provided with a plurality of positioning posts 8. Specifically, the bottom both sides of waveguide cavity 1 are equipped with outwards convex assembly plate, are equipped with an pilot hole and two mounting holes 112 on two assembly plates respectively, and the pilot column 8 is located the pilot hole, and the bottom protrusion waveguide cavity 1's of pilot column 8 bottom. The mounting holes 112 are used for screws to pass through, so that the millimeter wave coaxial waveguide converter is sealed by the air, and is mounted at a preset position of an antenna or a radar.
In summary, the airtight millimeter wave coaxial waveguide converter provided by the utility model realizes sealing by using the glass powder to seal the gap between the contact pin and the flange shell, thereby effectively enhancing the air tightness to meet the use requirement. The flange shell and the waveguide cavity can be detachably matched, so that the processing and assembling difficulty can be reduced, and the production efficiency and the product size precision can be improved. The positioning column is used for ensuring that the waveguide cavity is accurately aligned with the waveguide cavity of the antenna or the radar.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a airtight millimeter wave coaxial waveguide converter which characterized in that: the device comprises a waveguide cavity, a flange shell, an insulator, a jack piece, glass powder and a contact pin; the waveguide cavity is provided with a waveguide cavity, the flange shell is detachably connected to the outer wall of the waveguide cavity, a window for communicating the flange shell and the waveguide cavity is arranged on the outer wall of the waveguide cavity, the insulator is arranged in the flange shell, and the insulator is provided with a jack piece; one end of the contact pin extends into the flange shell to be in plug-in fit with the jack component, the other end of the contact pin extends into the waveguide cavity, and the contact pin and the flange shell are sealed by glass powder to form a sealed shell.
2. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: the flange shell is connected with the waveguide cavity through screws.
3. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: the waveguide cavity comprises a main cavity body and a cover plate, the main cavity body is provided with the waveguide cavity and a window, the waveguide cavity is communicated with the top surface and the bottom surface of the main cavity body, and the cover plate is detachably connected with the main cavity body to seal the top opening of the waveguide cavity.
4. A hermetically sealed millimeter wave coaxial waveguide converter in accordance with claim 3 wherein: the cover plate is connected with the main cavity through screws.
5. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: and a sealing ring is arranged between the flange shell and the waveguide cavity.
6. The hermetically sealed millimeter wave coaxial waveguide converter of claim 5, wherein: the flange shell or the waveguide cavity is provided with a first annular groove for accommodating the sealing ring.
7. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: the jack piece penetrates through the insulator, and a second annular groove matched with the insulator is formed in the jack piece.
8. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: and a third annular groove matched with the insulator is formed in the inner wall surface of the flange shell.
9. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: and a plurality of positioning columns are arranged on the waveguide cavity.
10. The hermetically sealed millimeter wave coaxial waveguide converter of claim 1, wherein: and a plurality of mounting holes are formed in the waveguide cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323153909.4U CN221381480U (en) | 2023-11-21 | 2023-11-21 | Air-tight seal millimeter wave coaxial waveguide converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323153909.4U CN221381480U (en) | 2023-11-21 | 2023-11-21 | Air-tight seal millimeter wave coaxial waveguide converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221381480U true CN221381480U (en) | 2024-07-19 |
Family
ID=91895308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323153909.4U Active CN221381480U (en) | 2023-11-21 | 2023-11-21 | Air-tight seal millimeter wave coaxial waveguide converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221381480U (en) |
-
2023
- 2023-11-21 CN CN202323153909.4U patent/CN221381480U/en active Active
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