CN201657590U - Multifunctional electromagnetic shielding ventilation device with dustproof and rainproof ability - Google Patents
Multifunctional electromagnetic shielding ventilation device with dustproof and rainproof ability Download PDFInfo
- Publication number
- CN201657590U CN201657590U CN2009203192012U CN200920319201U CN201657590U CN 201657590 U CN201657590 U CN 201657590U CN 2009203192012 U CN2009203192012 U CN 2009203192012U CN 200920319201 U CN200920319201 U CN 200920319201U CN 201657590 U CN201657590 U CN 201657590U
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Abstract
The utility model belongs to the electromagnetic shielding technical field, in particular to a multifunctional electromagnetic shielding ventilation device which has the dustproof and rainproof ability. The device is characterized in that the device at least comprises a straight hole type steel waveguide, a rainproof type steel waveguide with an inclined angle of 30degrees to 60degrees, a conductive liner, a metal frame as well as a stainless net. The steel waveguide and the straight hole type steel waveguide is contacted and fixed within the metal frame by surfaces with the same size, the steel waveguide and the periphery of the inside of the metal frame are fixed by using vacuum welding. The stainless net and the metal frame are fastened and connected by screws. A conductive gasket is stuck at the part which is contacted with an installation wall surface of the metal frame to form an integral sealing. The utility model provides the multifunctional electromagnetic shielding ventilation device which has the advantages that the windage is small, the shielding effectiveness is high, the installation is convenient; meanwhile, the device has the dustproof and rainproof ability, and is applicable for various shielding facilities and electronic equipment.
Description
Technical field
The utility model belongs to the electromangnetic spectrum field, relates to the electromagnetic shielding component of shield facility air pipe, electronic equipment ventilation via hole, particularly has the multifunction electric magnetic screen ventilation unit of dustproof and rainproof ability.
Background technology
Shield facility and electronic equipment are the closure casings of being made by plate-shape metal, be prevent the high-energy electromagnetic wave from shield facility and electronic device exterior to inner couplings or prevent that electromagnetic wave is from shield facility and the electronic equipment internal important structure to coupled outside.In order to guarantee to ventilate and the adjusting of air, then air pipe or ventilation hole must be set.Because these holes can produce the coupling of serious electromagnetic wave, reduce electromagnet shield effect greatly, then must on air pipe or ventilation via hole, install the electromagnetic shielding ventilation unit that can ventilate and can decay to electromagnetic wave additional.Because various ventilation unit environment for use differences are satisfying under the prerequisite of screening effectiveness, also it is required to have simultaneously functions such as dustproof, rainproof sometimes.Waveguide shielding ventilating window in the past mainly contains two kinds, and a kind of is the straight pass metal beehive, and this honeycomb windage is little, but not rainproof; Another is the rain-proof type metal beehive that has certain inclination angle, and this honeycomb is under the honeycomb length situation identical with the straight pass honeycomb, and windage is bigger; More than two kinds of common shortcomings of honeycomb be not dustproof.Obviously little for requiring windage, have the application scenario of dustproof, rainproof function and high screening effectiveness simultaneously, above-mentioned two kinds of honeycombs all do not meet the demands.
Summary of the invention
The purpose of this utility model is to provide that a kind of windage is little, screening effectiveness is high, easy for installation, have dustproof and rainproof ability simultaneously, be applicable to the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability of various shield facilities and electronic equipment.
To achieve these goals, the technical solution of the utility model is: have the multifunction electric magnetic screen ventilation unit of dustproof and rainproof ability, it is characterized in that: which comprises at least the waveguide of straight pass steel, angle of inclination at 30 °～60 ° the waveguide of rain-proof type steel, conductive gasket, metal edge frame and stainless (steel) wire; Steel waveguide, the waveguide of straight pass steel are fixed in the metal edge frame with unidimensional big facet contact, adopt vacuum welding to fix around steel waveguide and the metal edge frame inboard; Stainless (steel) wire and metal edge frame are fastenedly connected with screw; Amplexiform conductive gasket at the position of the installation wall of metal edge frame contact and form integral sealing.
Described conductive gasket is chosen metallic coil, woven wire combination liner or conductive fabric liner.
Around the waveguide of described straight pass steel with the metal edge frame inwall around the overall vacuum welding.
Described steel waveguide is the angle of inclination 30 °～60 ° rain-proof type stainless steel waveguide, overall vacuum welding around stainless steel waveguide and the metal edge frame inwall.
Described steel waveguide is the angle of inclination 30 °～60 ° rain-proof type mild steel nickel plating waveguide, overall vacuum welding around mild steel nickel plating ripple and the metal edge frame inwall.
The cross sectional shape of waveguide of described straight pass steel and steel waveguide is the regular hexagon of inscribed circle diameter Φ 1.4mm～Φ 6.35mm, and its length is 3mm～10mm, is connected with the metal edge frame inwall by vacuum welding.
Described metal edge frame is that L type angle steel material is welded, and thickness is at 1.5mm～3.5mm.
Described metal edge frame has conductive gasket with the position that the installation wall contacts.
The utility model has the advantages that: the multi-functional ventilation unit of this electromagnetic shielding not only has good electro-magnetic screen function, also has little, dustproof, the rainproof ability of windage simultaneously, can be used for various shield facilities; Its weight is moderate, is convenient to install; Dustproof stainless (steel) wire is convenient to dismounting and is cleaned; Greatly improved anticorrosion, moistureproof ability; In 150K～18GHz frequency range, can provide the screening effectiveness of 60～90dB.
Description of drawings
Below in conjunction with accompanying drawing by embodiment is described in detail the utility model.
Fig. 1 is the utility model example structure schematic diagram.
Among the figure: 1, metal edge frame; 2, straight pass steel waveguide; 3, steel waveguide; 4, stainless (steel) wire; 5, conductive gasket; 6, ventilation unit installing hole; 7, metal edge frame installing hole; 8, stainless (steel) wire installing hole.
Embodiment
As shown in Figure 1, have the multifunction electric magnetic screen ventilation unit of dustproof and rainproof ability, comprise that straight pass steel waveguide 2, angle of inclination are at 30 °～60 ° rain-proof type steel waveguide 3, conductive gasket 5, metal edge frame 1 and stainless (steel) wire 4; Steel waveguide 3, the waveguide 2 of straight pass steel are fixed in the metal edge frame 1 with unidimensional big facet contact, and steel waveguide 3 adopts vacuum welding to fix all around with metal edge frame 1 inboard; Stainless (steel) wire 4 peripheries have stainless (steel) wire installing hole 8, and metal edge frame 1 periphery has metal edge frame installing hole 7, with the position of screw at metal edge frame installing hole 7 and stainless (steel) wire installing hole 8 stainless (steel) wire 4 and metal edge frame 1 are fastenedly connected.So that when the more dust of steel mesh surface adsorption, can be dismantled, be cleaned.It is installed in the angle of inclination 30 °～60 ° rain-proof type steel waveguide 3 outsides, plays the effect of absorption dust; The angle of inclination around 30 °～60 ° rain-proof type steel waveguide 3 and straight pass steel waveguide 2 all with metal edge frame 1 inwall all around overall vacuum weld together; Join the installing hole of beating the relevant position at the installed surface of metal edge frame 1.Amplexiform conductive gasket 5 at the position of the installation wall of metal edge frame 1 contact and form integral sealings.Conductive gasket 5 can be chosen metallic coil, woven wire combination liner or conductive fabric liner.Around the conductive gasket 5 ventilation unit installing hole 6 is arranged also, ventilation unit installing hole 6 is identical with the hole size and the position of metal edge frame installing hole 7 and stainless (steel) wire installing hole 8.Around the straight pass steel waveguide 2 with metal edge frame 1 inwall around the overall vacuum welding.Steel waveguide 3 is angles of inclination 30 °～60 ° rain-proof type stainless steel waveguide, overall vacuum welding around stainless steel waveguide and metal edge frame 1 inwall.Steel waveguide 3 also can be the angle of inclination 30 °～60 ° rain-proof type mild steel nickel plating waveguide, overall vacuum welding around mild steel nickel plating ripple and metal edge frame 1 inwall.The cross sectional shape of straight pass steel waveguide 2 and steel waveguide 3 is the regular hexagon of inscribed circle diameter Φ 1.4mm～Φ 6.35mm, and its length is 3mm～10mm, is connected with the frame inwall by vacuum welding.The stainless steel wire side has kept the micropore air permeability, it is a metal integral that has micropore, the order number of mesh can be selected according to the requirement of air resistance coefficient and screening effectiveness, order is counted scope generally between 50 orders～150 orders, its thickness has only 0.5mm～2.5mm, is far smaller than the common 13mm～40mm thickness of waveguide shielding ventilation unit.Its differential static pressure (loss) is that (1.5～7m/s), also the waveguide well below the dustproof sea of adding shields ventilation unit to 5～35Pa.
In addition, in order to prevent that the slit that electromagnetic wave sees through between screening arrangement and equipment installation wall from producing leakage, at the position that metal edge frame 1 contacts with the installation wall, bonding high performance metallic coil, woven wire combination liner or the conductive fabric liner, thus prevent because of the electromagnetic wave leakage that the slit causes is installed to reach integral sealing.
Claims (8)
1. have the multifunction electric magnetic screen ventilation unit of dustproof and rainproof ability, it is characterized in that: which comprises at least straight pass steel waveguide (2), angle of inclination at 30 °～60 ° rain-proof type steel waveguide (3), conductive gasket (5), metal edge frame (1) and stainless (steel) wire (4); Steel waveguide (3), straight pass steel waveguide (2) are fixed in the metal edge frame (1) with unidimensional big facet contact, and steel waveguide (3) adopts vacuum welding to fix all around with metal edge frame (1) is inboard; Stainless (steel) wire (4) is fastenedly connected with screw with metal edge frame (1); Amplexiform conductive gasket (5) at the position of the installation wall of metal edge frame (1) contact and form integral sealing.
2. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1 is characterized in that: described conductive gasket (5) is chosen metallic coil, woven wire combination liner or conductive fabric liner.
3. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1 is characterized in that: described straight pass steel waveguide (2) all around with metal edge frame (1) inwall around overall vacuum welding.
4. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1, it is characterized in that: described steel waveguide (3) is the angle of inclination 30 °～60 ° rain-proof type stainless steel waveguide, overall vacuum welding around stainless steel waveguide and metal edge frame (1) inwall.
5. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1, it is characterized in that: described steel waveguide (3) is the angle of inclination 30 °～60 ° rain-proof type mild steel nickel plating waveguide, overall vacuum welding around mild steel nickel plating ripple and metal edge frame (1) inwall.
6. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1, it is characterized in that: the cross sectional shape of described straight pass steel waveguide (2) and steel waveguide (3) is the regular hexagon of inscribed circle diameter Φ 1.4mm～Φ 6.35mm, its length is 3mm～10mm, is connected with metal edge frame (1) inwall by vacuum welding.
7. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1, it is characterized in that: described metal edge frame (1) is welded for L type angle steel material, and thickness is at 1.5mm～3.5mm.
8. the multifunction electric magnetic screen ventilation unit with dustproof and rainproof ability according to claim 1 is characterized in that: described metal edge frame (1) has conductive gasket (5) with the position that the installation wall contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203192012U CN201657590U (en) | 2009-12-30 | 2009-12-30 | Multifunctional electromagnetic shielding ventilation device with dustproof and rainproof ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203192012U CN201657590U (en) | 2009-12-30 | 2009-12-30 | Multifunctional electromagnetic shielding ventilation device with dustproof and rainproof ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201657590U true CN201657590U (en) | 2010-11-24 |
Family
ID=43122817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203192012U Expired - Lifetime CN201657590U (en) | 2009-12-30 | 2009-12-30 | Multifunctional electromagnetic shielding ventilation device with dustproof and rainproof ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201657590U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365012A (en) * | 2011-10-20 | 2012-02-29 | 镇江船舶电器有限责任公司 | Shielding ventilating window |
| CN102946708A (en) * | 2012-10-25 | 2013-02-27 | 西安开容电子技术有限责任公司 | Low wind resistance shielding ventilation mechanism |
| CN109451719A (en) * | 2018-12-11 | 2019-03-08 | 贵州航天电子科技有限公司 | A kind of ventilation device with rain-proof dust-proof and electro-magnetic screen function |
| GB2568502A (en) * | 2017-11-17 | 2019-05-22 | Bae Systems Plc | Shield |
| CN110120479A (en) * | 2019-04-17 | 2019-08-13 | 上海空间电源研究所 | A kind of high-pressure sealed insulation lithium-ions battery group structure of aerospace |
| CN112930102A (en) * | 2021-01-22 | 2021-06-08 | 西安应用光学研究所 | Flexible air-tight electromagnetic shielding device |
-
2009
- 2009-12-30 CN CN2009203192012U patent/CN201657590U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365012A (en) * | 2011-10-20 | 2012-02-29 | 镇江船舶电器有限责任公司 | Shielding ventilating window |
| CN102946708A (en) * | 2012-10-25 | 2013-02-27 | 西安开容电子技术有限责任公司 | Low wind resistance shielding ventilation mechanism |
| GB2568502A (en) * | 2017-11-17 | 2019-05-22 | Bae Systems Plc | Shield |
| GB2568502B (en) * | 2017-11-17 | 2022-03-30 | Bae Systems Plc | Shield |
| CN109451719A (en) * | 2018-12-11 | 2019-03-08 | 贵州航天电子科技有限公司 | A kind of ventilation device with rain-proof dust-proof and electro-magnetic screen function |
| WO2020119036A1 (en) * | 2018-12-11 | 2020-06-18 | 贵州航天电子科技有限公司 | Ventilation apparatus having anti-rain, anti-dust and electromagnetic interference shielding functionality |
| GB2588365A (en) * | 2018-12-11 | 2021-04-21 | Guizhou Aerospace Electronic Technology Co Ltd | Ventilation apparatus having anti-rain, anti-dust and electromagnetic interference shielding functionality |
| GB2588365B (en) * | 2018-12-11 | 2023-07-19 | Guizhou Aerospace Electronic Technology Co Ltd | Ventilation device with the functions of rainproof, dustproof and electromagnetic shielding |
| CN110120479A (en) * | 2019-04-17 | 2019-08-13 | 上海空间电源研究所 | A kind of high-pressure sealed insulation lithium-ions battery group structure of aerospace |
| CN112930102A (en) * | 2021-01-22 | 2021-06-08 | 西安应用光学研究所 | Flexible air-tight electromagnetic shielding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |