CN220068166U - Replaceable electromagnetic shielding ventilation waveguide window with three-dimensional lattice structure - Google Patents
Replaceable electromagnetic shielding ventilation waveguide window with three-dimensional lattice structure Download PDFInfo
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- CN220068166U CN220068166U CN202321498361.4U CN202321498361U CN220068166U CN 220068166 U CN220068166 U CN 220068166U CN 202321498361 U CN202321498361 U CN 202321498361U CN 220068166 U CN220068166 U CN 220068166U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 90
- 230000000694 effects Effects 0.000 claims abstract description 19
- 230000002238 attenuated effect Effects 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 13
- 238000013461 design Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 5
- 208000032365 Electromagnetic interference Diseases 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- GCICAPWZNUIIDV-UHFFFAOYSA-N lithium magnesium Chemical compound [Li].[Mg] GCICAPWZNUIIDV-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000001652 electrophoretic deposition Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a replaceable electromagnetic shielding ventilation waveguide window with a three-dimensional lattice structure, and belongs to the field of electromagnetic shielding. The problems that the electromagnetic shielding effect of the traditional waveguide window is still to be improved and the electrostatic effect is caused by excessive dust are solved. The electromagnetic wave attenuation device comprises a fixed frame base, a ventilation window base, a three-dimensional lattice structure dustproof filter screen, a three-dimensional lattice structure waveguide type ventilation window and a ventilation opening, wherein the ventilation window base is detachably connected to the fixed frame base, at least one ventilation opening is detachably arranged on one side end face of the ventilation window base, which is far away from the fixed frame base, the three-dimensional lattice structure waveguide type ventilation window is arranged in the ventilation opening, the three-dimensional lattice structure dustproof filter screen is arranged between the ventilation window base and the fixed frame base and is communicated with the three-dimensional lattice structure waveguide type ventilation window, and electromagnetic waves are attenuated under the action of the three-dimensional lattice structure waveguide type ventilation window and the three-dimensional lattice structure dustproof filter screen after entering the ventilation opening. It is mainly used for electromagnetic shielding of equipment.
Description
Technical Field
The utility model belongs to the field of electromagnetic shielding, and particularly relates to a replaceable electromagnetic shielding ventilation waveguide window with a three-dimensional lattice structure.
Background
With the rapid development of science and technology, the number and variety of modern electronic, electric and information equipment are increased, the performance is advanced, and the use occasion and the owned density are also increased. Therefore, the electronic equipment is often subjected to various electromagnetic interferences including electromagnetic interferences of other original parts of the electronic equipment and electromagnetic interferences from other equipment in the external environment, and the electronic equipment can also be used as an interference source to generate interference to other external electronic equipment.
In this case, to ensure that the device operates properly in various complex electromagnetic environments, electromagnetic compatibility design must be carefully considered during the structural design phase. If this problem is ignored, the interference problem is exposed by the time the new product is used. Therefore, the early solving of the electromagnetic interference problem is an important link which must be considered in the design of the case structure of the electronic equipment.
In order to meet the requirements of ventilation and heat dissipation in the chassis, ventilation holes are sometimes formed in the chassis. The openings help to dissipate heat, but this also results in an external electromagnetic field entering the interior of the cavity, reducing the shielding effectiveness of the chassis. Therefore, a certain balance needs to be achieved between ventilation and heat dissipation and shielding effectiveness, so that the ventilation and heat dissipation effects are achieved, and the equipment in the case cannot be subjected to electromagnetic interference in the environment.
The waveguide is a metallic tubular structure with high pass filtering characteristics. According to waveguide theory, a mature waveguide can block the propagation of electromagnetic waves below the cut-off frequency. Therefore, the electromagnetic shielding ventilation waveguide window is embedded in the opening of the shielding case, so that the shielding efficiency of the cavity can be improved, and the ventilation and heat dissipation in the equipment are not influenced. Most of the surfaces of the waveguide sheets of the shielding waveguide window accumulate more dirt, and the radiation protection effect of the waveguide sheets can be negatively influenced, so that the subsequent normal use is influenced.
The utilization of the existing waveguide and the utilization of the filter screen do not maximize the electromagnetic shielding effect, the effect is still improved, and the influence on the electrostatic effect caused by dust is not further reduced.
Disclosure of Invention
In view of the above, the present utility model is directed to providing a replaceable electromagnetic shielding ventilation waveguide window with a stereoscopic lattice structure, so as to solve the problems that the electromagnetic shielding effect of the conventional waveguide window is still to be improved and the electrostatic effect is caused by excessive dust.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a removable electromagnetic shield ventilation waveguide window of three-dimensional lattice structure, includes fixed frame base, ventilation window base, three-dimensional lattice structure dustproof filter screen, three-dimensional lattice structure waveguide formula ventilation window and vent, can dismantle on the fixed frame base and connect the ventilation window base, ventilation window base keeps away from and can dismantle on the terminal surface of fixed frame base one side and set up at least one vent, set up three-dimensional lattice structure waveguide formula ventilation window in the vent, three-dimensional lattice structure dustproof filter screen is arranged in between ventilation window base and the fixed frame base and with three-dimensional lattice structure waveguide formula ventilation window intercommunication, and the electromagnetic wave is attenuated under the effect of three-dimensional lattice structure waveguide formula ventilation window and three-dimensional lattice structure dustproof filter screen after entering the vent.
Further, a plurality of screw holes are formed in the periphery of the fixed frame base.
Further, the ventilation window base is clamped on the fixed frame base through the first buckle.
Furthermore, the ventilation window base is provided with a female buckle corresponding to each ventilation opening one by one, and the ventilation openings are connected to the female buckle through second buckle clamping.
Further, the number of the ventilation openings is three.
Further, the vent is a covered wire vent and/or a sheet metal perforated vent.
Furthermore, the waveguide type ventilating window with the three-dimensional lattice structure comprises a plurality of three-dimensional lattice units which are uniformly distributed.
Further, the stereoscopic lattice unit is a hollow spherical lattice unit.
Further, the stereoscopic lattice unit is a hollow columnar lattice unit.
Further, the three-dimensional lattice unit is a lattice unit formed by coating hollow spheres with a plurality of hollow polygonal pyramids.
Compared with the prior art, the utility model has the beneficial effects that:
1. the ventilation waveguide window is simple in structure, convenient to assemble and disassemble, easy to maintain, clean and replace parts, and more convenient and quick to use;
2. the ventilating waveguide window is provided with the waveguide ventilating window with the three-dimensional lattice structure and the dustproof filter screen with the three-dimensional lattice structure, electromagnetic waves are reflected by utilizing the hollow structure of the lattice structure, the hollow structure of the dustproof filter screen with the three-dimensional lattice structure is matched for further attenuation, the electromagnetic waves can be effectively attenuated, and the ventilating waveguide window has stronger electromagnetic wave attenuation capacity compared with the structure of the plane filter screen and the traditional waveguide window structure;
3. the ventilation waveguide window can accumulate less dust under the same filtering condition by arranging the dustproof filter screen with the three-dimensional lattice structure, so that the interference of the electrostatic effect on the electronic equipment is reduced;
4. the three-dimensional lattice structure waveguide type ventilating window of the ventilating waveguide window and the three-dimensional lattice structure dustproof filter screen can improve the structural strength and reduce the overall weight;
5. the ventilating waveguide window can adapt to various electronic equipment with different requirements on heat dissipation requirements and electromagnetic shielding effectiveness by utilizing different lattice structures of the waveguide ventilating window with the three-dimensional lattice structure, and has strong adaptability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a front view of a replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure according to the present utility model;
FIG. 2 is a side view of a replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure according to the present utility model;
FIG. 3 is a schematic view of a connection structure of a second buckle and a vent according to the present utility model;
fig. 4 to 24 are schematic views showing different structural forms of the stereoscopic lattice unit according to the present utility model.
A fixed frame base 1; screw holes 2; a louver base 3; a three-dimensional lattice structure dustproof filter screen 4; a first clasp 5; a waveguide type ventilation window 6 of a three-dimensional lattice structure; a stereoscopic lattice unit 6-1; a female buckle 7; a second clasp 8; and a vent 9.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be noted that, in the case of no conflict, embodiments of the present utility model and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.
Referring to the drawings, the embodiment mode of the utility model is described, a replaceable electromagnetic shielding ventilation waveguide window with a three-dimensional lattice structure comprises a fixed frame base 1, a ventilation window base 3, a three-dimensional lattice structure dustproof filter screen 4, a three-dimensional lattice structure waveguide type ventilation window 6 and a ventilation opening 9, wherein the fixed frame base 1 is detachably connected with the ventilation window base 3, the ventilation window base 3 is detachably arranged on one side end face far away from the fixed frame base 1, at least one ventilation opening 9 is arranged in the ventilation opening 9, the three-dimensional lattice structure waveguide type ventilation window 6 is arranged in the ventilation opening 9, the three-dimensional lattice structure dustproof filter screen 4 is arranged between the ventilation window base 3 and the fixed frame base 1 and is communicated with the three-dimensional lattice structure waveguide type ventilation window 6, and electromagnetic waves are attenuated under the action of the three-dimensional lattice structure waveguide type ventilation window 6 and the three-dimensional lattice structure dustproof filter screen 4 after entering the ventilation opening 9. Through the setting of the waveguide type ventilating window 6 with the three-dimensional lattice structure, electromagnetic waves can be effectively shielded, and the filter screen of the dustproof filter screen 4 with the three-dimensional lattice structure is formed by adopting the three-dimensional lattice structure, so that the effect of attenuating the electromagnetic waves can be achieved. Meanwhile, the three-dimensional lattice structure dustproof filter screen 4 adopts a lattice structure, so that less dust can be accumulated under the same use condition, and the electrostatic effect caused by the dust is reduced. The waveguide type ventilation window 6 with the three-dimensional lattice structure takes the ultra-light magnesium-lithium alloy as a matrix, and adopts the magnesium-lithium based composite material formed by accumulation and rolling after being compounded by an electrophoretic deposition method, and the material has the advantages of ultra-low density, capability of reducing the weight and the load of equipment and meeting the use requirement of light weight; the strength and the plasticity and toughness of the composite material can be cooperatively met through component regulation and process optimization, and the service performance standard of the composite material as a structural member is met; the reflection of electromagnetic waves is enhanced by constructing a large number of macro-micro multi-scale parallel interfaces in the material, and the electromagnetic wave shielding protective piece can be used for effectively shielding external electromagnetic wave interference, and has a good shielding effect.
The electromagnetic shielding characteristics of the chassis are determined mainly by the structure of the cut-off waveguide window installed in the vent. The shielding performance of the waveguide window can be completed by reasonably designing the structural parameters of the waveguide window according to the shielding indexes, and compared with the traditional planar structural design, the three-dimensional structural design of the three-dimensional lattice structure is utilized, so that the shielding performance of the waveguide window on external electromagnetic interference can be further improved, the weight can be reduced, and the structural strength can be improved.
In this embodiment, a plurality of screw holes 2 are provided on the peripheral side of the fixed frame base 1. The ventilation waveguide window is installed on corresponding equipment through the screw hole 2 for use, and good maintenance convenience and stable connection effect can be obtained.
In this embodiment, the louver base 3 is engaged with the fixed frame base 1 by the first buckle 5. Through the connected mode of block, can be convenient for dismantle ventilation window base 3 to carry out better maintenance to equipment, the convenience is good.
In this embodiment, the louver base 3 is provided with a female buckle 7 corresponding to each ventilation opening 9 one by one, and the ventilation openings 9 are connected to the female buckle 7 through the second buckle 8 in a clamping manner. Through the connected mode of block, can be convenient for dismantle and carry out better maintenance.
In this embodiment, the number of the ventilation openings 9 is three. The actual determination is made from device to device.
In this embodiment, the vent 9 is a covered wire vent and/or a sheet metal perforated vent. Can filter dust without affecting ventilation effect.
In this embodiment, the waveguide ventilation window 6 with a stereo lattice structure includes a plurality of stereo lattice units 6-1 uniformly distributed. The dust-proof filter screen 4 with the three-dimensional lattice structure is also in a form of connecting a plurality of dust-proof three-dimensional lattice units, the dust-proof three-dimensional lattice units and the three-dimensional lattice unit 6-1 have the same structure and also play a role in attenuating electromagnetic waves, and compared with a common square filter screen, the dust-proof three-dimensional lattice structure can more effectively resist the entry of dust and sundries and protect equipment from being polluted; compared with a common plane structure, the hollow lattice can further reduce the use amount of manufacturing materials, lighten the whole weight and provide better strength support for the filter screen structure; besides, the structural design can more effectively prevent the solidification and deposition of cooling water, prolongs the service life of the air-cooled electronic equipment, and has the characteristics of portability, dust prevention, water prevention, ventilation and high strength.
The three-dimensional lattice unit 6-1 is a hollow spherical lattice unit, a hollow columnar lattice unit or a lattice unit formed by coating hollow spheres with a plurality of hollow polygonal pyramids, and the specific forms of various lattice units are shown in fig. 4-24, so that the effects of increasing the structural strength and attenuating electromagnetic waves can be achieved. Not all of which are described herein, other types of lattice units that can achieve similar results are within the scope of the present utility model.
When in use, the waveguide window is firstly installed on corresponding equipment. When the electromagnetic wave and the dust enter through the ventilation opening 9, the electromagnetic wave and the dust are firstly filtered once and then attenuated through the waveguide ventilation window 6 with the three-dimensional lattice structure and the dustproof filter screen 4 with the three-dimensional lattice structure. So that the electromagnetic waves can finally reach the equipment to minimize the influence of electromagnetic interference. Meanwhile, the dust-proof filter screen 4 with the three-dimensional lattice structure can accumulate smaller dust under the same condition, so that the electrostatic effect possibly caused by the dust is reduced to the greatest extent.
The embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model.
Claims (10)
1. The utility model provides a removable electromagnetic shield ventilation waveguide window of three-dimensional lattice structure which characterized in that: including fixed frame base (1), ventilation window base (3), three-dimensional lattice structure dustproof filter screen (4), three-dimensional lattice structure waveguide formula ventilation window (6) and vent (9), can dismantle on fixed frame base (1) and connect ventilation window base (3), ventilation window base (3) are kept away from on fixed frame base (1) one side terminal surface and can are dismantled and set up at least one vent (9), set up three-dimensional lattice structure waveguide formula ventilation window (6) in vent (9), three-dimensional lattice structure dustproof filter screen (4) are arranged in between ventilation window base (3) and fixed frame base (1) and with three-dimensional lattice structure waveguide formula ventilation window (6) intercommunication, and the electromagnetic wave is attenuated under the effect of three-dimensional lattice structure waveguide formula ventilation window (6) and three-dimensional lattice structure dustproof filter screen (4) after entering vent (9).
2. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the periphery of the fixed frame base (1) is provided with a plurality of screw holes (2).
3. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the ventilation window base (3) is clamped on the fixed frame base (1) through a first buckle (5).
4. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the ventilation window base (3) is provided with female buckles (7) corresponding to the ventilation openings (9) one by one, and the ventilation openings (9) are connected to the female buckles (7) through second buckles (8) in a clamping mode.
5. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the number of the ventilation openings (9) is three.
6. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the vent (9) is a cover wire vent and/or a metal plate perforation vent.
7. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 1, wherein: the waveguide type ventilating window (6) with the three-dimensional lattice structure comprises a plurality of three-dimensional lattice units (6-1) which are uniformly distributed.
8. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 7, wherein: the three-dimensional lattice unit (6-1) is a hollow spherical lattice unit.
9. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 7, wherein: the three-dimensional lattice unit (6-1) is a hollow columnar lattice unit.
10. The replaceable electromagnetic shielding ventilation waveguide window of a stereoscopic lattice structure of claim 7, wherein: the three-dimensional lattice unit (6-1) is a lattice unit formed by coating hollow spheres with a plurality of hollow polygonal pyramids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321498361.4U CN220068166U (en) | 2023-06-13 | 2023-06-13 | Replaceable electromagnetic shielding ventilation waveguide window with three-dimensional lattice structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321498361.4U CN220068166U (en) | 2023-06-13 | 2023-06-13 | Replaceable electromagnetic shielding ventilation waveguide window with three-dimensional lattice structure |
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| Publication Number | Publication Date |
|---|---|
| CN220068166U true CN220068166U (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321498361.4U Active CN220068166U (en) | 2023-06-13 | 2023-06-13 | Replaceable electromagnetic shielding ventilation waveguide window with three-dimensional lattice structure |
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| Country | Link |
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| CN (1) | CN220068166U (en) |
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2023
- 2023-06-13 CN CN202321498361.4U patent/CN220068166U/en active Active
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