CN209902506U - Waveguide window made of welded honeycomb core and steel-aluminum composite board - Google Patents
Waveguide window made of welded honeycomb core and steel-aluminum composite board Download PDFInfo
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- CN209902506U CN209902506U CN201822164021.3U CN201822164021U CN209902506U CN 209902506 U CN209902506 U CN 209902506U CN 201822164021 U CN201822164021 U CN 201822164021U CN 209902506 U CN209902506 U CN 209902506U
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Abstract
The utility model discloses a waveguide window of welding honeycomb core and steel-aluminum composite panel preparation, including the window frame, conflict jointly on a week lateral wall in the window frame has electrically conductive liner, the cladding has the hexagonal honeycomb core in the electrically conductive liner. The utility model discloses an use seamless welding technique, the ring flange has been strengthened, the connectivity between window frame and the hexagonal honeycomb core, shielding effectiveness has been improved, and simultaneously, all connecting wires between aluminium honeycomb core and the aluminium honeycomb core, it is metallurgical to connect the face and is connected the metal, shielding effect has been strengthened, through using steel aluminum composite board, the xenogenesis metal connection problem of pure aluminium waveguide window and steel connector has been solved, and aluminium honeycomb core high temperature is through artifical ageing constant temperature natural cooling after the brazing, form fine and close oxide layer once more, corrosion resisting property is good, its shielding effectiveness and mechanical properties are far higher than the aluminium system waveguide window of sticky honeycomb core preparation.
Description
Technical Field
The utility model relates to an electromagnetic protection technical field especially relates to a waveguide window of welding honeycomb core and steel-aluminum composite panel preparation.
Background
The waveguide window is a gas-or liquid-tight barrier or waveguide cover designed for substantially transparent transmission of electromagnetic waves, and functions to ensure air circulation while preventing leakage of electromagnetic signals. The ventilation waveguide window is a main channel for shielding indoor air from exchanging with the outside, and can effectively stop the passing of electromagnetic waves. The ventilation waveguide window is a cut-off waveguide bundle composed of a plurality of small cut-off waveguides, and the cross section of the ventilation waveguide window is hexagonal. The cross-sectional form of the ventilation cut-off waveguide window is generally as follows: circular, square, and hexagonal. Square and hexagonal waveguides are advantageous for isolation of electromagnetic waves because they allow fewer propagating modes than circular waveguides; under the condition of equal insertion attenuation capacity, the channel area of the hexagonal waveguide is larger than that of the square waveguide window, so that the ventilation waveguide window is usually in a hexagonal structure.
At present, the aluminum honeycomb core in the waveguide window has the outstanding problems that the honeycomb core adopts an adhesive honeycomb structure, the shielding efficiency is poor, and the application occasion is limited; the steel honeycomb core is poor in corrosion resistance and easy to oxidize, the service life is shortened, the use cost is increased, and the limitation is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a waveguide window manufactured by welding a honeycomb core and a steel-aluminum composite board.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a waveguide window of welding honeycomb core and steel-aluminum composite panel preparation, includes the window frame, conflict jointly on a week lateral wall in the window frame has electrically conductive liner, the cladding has hexagonal honeycomb core in the electrically conductive liner, the welding has the ring flange on the lower extreme lateral wall of window frame, be equipped with first opening on the upper end lateral wall of window frame, be equipped with the second opening that corresponds with first opening on the ring flange.
Preferably, the conductive pad is made of metal aluminum or tin-plated phosphor bronze.
Preferably, the hexagonal honeycomb core is a welded aluminum honeycomb core.
Preferably, the window frame is made of 5083 aluminum alloy.
Preferably, the flange is a steel-aluminum composite plate.
Preferably, the conductive pad is woven in a shape of a square.
Compared with the prior art, the beneficial effects of the utility model are that:
1. by using the welding aluminum honeycomb core as the waveguide channel, the shielding effectiveness of the waveguide window is adjusted by adjusting the side length of the hexagon of the honeycomb core, and meanwhile, the shielding effectiveness of the waveguide window is far higher than that of the waveguide channel made of the adhesive honeycomb with the same side length of the hexagon of the honeycomb core.
2. By using a seamless welding technique, a continuous structure and no gap are ensured. Therefore, the flange plate and the window frame interface can be assembled without a gap, and the shielding effect is enhanced;
3. the close and continuous matching among the hexagonal honeycomb core, the conductive gasket and the flange plate enhances the connection conductivity of the hexagonal honeycomb core and the conductive gasket, and improves the shielding property;
4. under the action of the steel-aluminum composite board, the problem of dissimilar metal connection between the pure aluminum waveguide window and the steel connector is solved, and seamless welding between the waveguide window and the wall body is ensured;
in conclusion, the utility model strengthens the connectivity among the flange plate, the window frame and the hexagonal honeycomb core by using the seamless welding technology, improves the shielding efficiency, meanwhile, all connecting wires and connecting surfaces between the aluminum honeycomb cores are in metal metallurgical connection, so that the shielding effect is enhanced, by using the steel-aluminum composite board, the problem of dissimilar metal connection between the pure aluminum waveguide window and the steel connector is solved, and the aluminum honeycomb core is naturally cooled at constant temperature through artificial aging after high-temperature brazing to form a compact oxide layer again, so that the corrosion resistance is good, the shielding effectiveness and the mechanical property of the waveguide window are far higher than those of an aluminum waveguide window made of an adhesive honeycomb core, in addition, a user can adjust the shielding effect by adjusting the side length of the honeycomb core, the electromagnetic signal leakage blocking effect can be effectively enhanced, and the requirements of ventilation, heat dissipation and electromagnetic shielding of equipment and a shielding room are met.
Drawings
Fig. 1 is a schematic structural view of the exterior of a waveguide window made of a welded honeycomb core and a steel-aluminum composite plate according to the present invention;
fig. 2 is a schematic view of an internal structure of a waveguide window manufactured by welding a honeycomb core and a steel-aluminum composite plate according to the present invention;
fig. 3 is a cross-sectional view of a waveguide window frame made of a welded honeycomb core and a steel-aluminum composite plate according to the present invention;
fig. 4 is an enlarged view of a position a of the waveguide window made of the welded honeycomb core and the steel-aluminum composite plate of the present invention.
In the figure: the structure comprises a flange plate 1, a hexagonal honeycomb core 2, a window frame 3, a first opening 4, a second opening 5 and a conductive gasket 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a waveguide window made of welded honeycomb core and steel-aluminum composite plate comprises a window frame 3, wherein the window frame 3 is made of 5083 aluminum alloy, welding is facilitated, and welding performance is improved, conductive gaskets 6 are abutted on four side walls of a circle in the window frame 3 together, the conductive gaskets 6 are made of metal aluminum or tin-plated phosphor bronze, the conductive gaskets 6 are woven into a square-shaped shape, hexagonal honeycomb cores 2 are coated in the conductive gaskets 6, electromagnetic signal shielding performance is improved, the hexagonal honeycomb cores 2 are welded aluminum honeycomb cores, connectivity between the hexagonal honeycomb cores 2 is improved, the hexagonal honeycomb cores 2 are made of 3003 aluminum foil materials, and the aluminum foil is soft in texture and good in ductility and convenient to process;
the flange plate 1 is welded on the side wall of the lower end of the window frame 3, the connectivity and the tightness between the window frame 3 and the flange plate 1 are improved through seamless welding, the electric conduction performance is improved, the flange plate 1 is a steel-aluminum composite plate, one surface is steel, the other surface is aluminum, metallurgical connection is realized through a special process, the aluminum surface is connected with the window frame 3, the steel surface is connected with a shielding building body or a box body such as a square cabin, the prior shielding machine room mostly adopts steel plate assembly, welding or direct sticking, if the pure aluminum flange plate 1 is adopted, because two metal materials are directly welded with difficulty, the seamless welding between a waveguide window and a wall body cannot be ensured, the side wall of the upper end of the window frame 3 is provided with a first opening 4, the flange plate 1 is provided with a second opening 5 corresponding to the first opening 4, an aluminum honeycomb core is woven into a hexagonal honeycomb shape and then placed in a brazing furnace, and the metal space structure material is formed, the heating temperature is higher than the melting point of the solder and lower than the melting point of the base metal in the welding process, namely the solder is molten and the base metal is not molten, the molten solder is infiltrated and filled between the two base metals under the action of capillary attraction, and is mutually dissolved, diffused and cooled and solidified with the base metals to weld the two base metals into a whole, all connecting wires and connecting surfaces between the hexagonal honeycomb core 2 and the hexagonal honeycomb core 2 are in metal welding connection, and non-metal materials such as adhesive and the like are not added in the middle, so that the performance of the aluminum honeycomb core is greatly changed, and the aluminum honeycomb core has excellent performances such as high electromagnetic shielding performance, high-temperature 600 ℃ welding resistance, light weight, high specific rigidity, sound insulation, heat insulation, flame retardance, shock absorption and the like, and also.
The utility model also provides a processing technical scheme of the waveguide window;
1. selecting a metal plate, selecting 5 series aluminum materials as a flange plate, and selecting 3003 aluminum materials as aluminum foils for manufacturing the honeycomb core; the metal such as stainless steel can be selected; 2. the size of the hexagonal honeycomb core 2 is selected according to the shielding performance requirement, and the selection requirement of the hexagonal honeycomb core 2 is as follows: the height of the hexagonal honeycomb core 2 is more than or equal to 3-5 times of the outer diameter of the hexagonal honeycomb core 2, and the ventilation quantity of the hexagonal honeycomb core 2 is not lower than 80%; 3. cleaning and drying all the plates; 4. placing the window frame 3 upside down, and then placing the conductive gasket 6 wrapped on the welded aluminum honeycomb core in the window frame 3; 5. placing the flange plate 1 above the hexagonal honeycomb core 2, then pressing the hexagonal honeycomb core 2 tightly, and welding all connecting lines of the window frame 3 and the flange plate 1 in a seamless manner; 6. polishing the surface after welding; 7. and spraying the conductive paint according to the color requirement of a customer.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a waveguide window of welding honeycomb core and steel-aluminum composite panel preparation, includes window frame (3), its characterized in that: conflict jointly on four lateral walls of a week in window frame (3) and have electrically conductive liner (6), it has hexagonal honeycomb core (2) to cover in electrically conductive liner (6), the welding has ring flange (1) on the lower extreme lateral wall of window frame (3), be equipped with first opening (4) on the upper end lateral wall of window frame (3), be equipped with second opening (5) that correspond with first opening (4) on ring flange (1).
2. A waveguide window made of welded honeycomb core and steel-aluminium composite panel according to claim 1, characterized in that the conductive pad (6) is made of metallic aluminium or tin-phosphor bronze.
3. The waveguide window made of the welded honeycomb core and the steel-aluminum composite plate according to claim 1, wherein the hexagonal honeycomb core (2) is a welded aluminum honeycomb core.
4. The waveguide window made of welded honeycomb core and steel-aluminum composite plate according to claim 1, wherein the window frame (3) is made of 5083 aluminum alloy.
5. The waveguide window made of welded honeycomb core and steel-aluminum composite plate according to claim 1, wherein the flange (1) is a steel-aluminum composite plate.
6. A waveguide window made of welded honeycomb core and steel-aluminium composite panel according to claim 1, characterized in that the conductive gasket (6) is woven in a shape of a square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164021.3U CN209902506U (en) | 2018-12-20 | 2018-12-20 | Waveguide window made of welded honeycomb core and steel-aluminum composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164021.3U CN209902506U (en) | 2018-12-20 | 2018-12-20 | Waveguide window made of welded honeycomb core and steel-aluminum composite board |
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| CN209902506U true CN209902506U (en) | 2020-01-07 |
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| CN201822164021.3U Active CN209902506U (en) | 2018-12-20 | 2018-12-20 | Waveguide window made of welded honeycomb core and steel-aluminum composite board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145962A (en) * | 2021-03-09 | 2021-07-23 | 哈尔滨工业大学（威海） | Heterogeneous metal material honeycomb sandwich structure and preparation method thereof |
| CN114161021A (en) * | 2021-12-17 | 2022-03-11 | 中国电子科技集团公司第十三研究所 | Sealing welding structure and welding method of air-tight micro-rectangular electric connector |
| CN118102689A (en) * | 2024-01-23 | 2024-05-28 | 湖南协德科技有限公司 | Electromagnetic shielding waveguide window and manufacturing method thereof |
-
2018
- 2018-12-20 CN CN201822164021.3U patent/CN209902506U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145962A (en) * | 2021-03-09 | 2021-07-23 | 哈尔滨工业大学（威海） | Heterogeneous metal material honeycomb sandwich structure and preparation method thereof |
| CN113145962B (en) * | 2021-03-09 | 2022-12-06 | 哈尔滨工业大学（威海） | Heterogeneous metal material honeycomb sandwich structure and preparation method thereof |
| CN114161021A (en) * | 2021-12-17 | 2022-03-11 | 中国电子科技集团公司第十三研究所 | Sealing welding structure and welding method of air-tight micro-rectangular electric connector |
| CN114161021B (en) * | 2021-12-17 | 2023-08-15 | 中国电子科技集团公司第十三研究所 | Sealing welding structure and welding method of airtight micro-rectangular electric connector |
| CN118102689A (en) * | 2024-01-23 | 2024-05-28 | 湖南协德科技有限公司 | Electromagnetic shielding waveguide window and manufacturing method thereof |
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Address after: Room 601, no.99-3, Wenping, Siming District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen Zhongqian Industrial Co., Ltd Address before: Room 601, no.99-3, Wenping, Siming District, Xiamen City, Fujian Province, 361000 Patentee before: XIAMEN ZHONGQIAN INDUSTRIAL Co.,Ltd. |