CN201234439Y - Electromagnetic shielding ventilation device - Google Patents
Electromagnetic shielding ventilation device Download PDFInfo
- Publication number
- CN201234439Y CN201234439Y CNU2008200294310U CN200820029431U CN201234439Y CN 201234439 Y CN201234439 Y CN 201234439Y CN U2008200294310 U CNU2008200294310 U CN U2008200294310U CN 200820029431 U CN200820029431 U CN 200820029431U CN 201234439 Y CN201234439 Y CN 201234439Y
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- electromagnetic shielding
- metal
- net
- ventilation unit
- liner
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Abstract
The utility model discloses an electromagnetic shielding and ventilating device which solves the technical problems that the weight of the prior electromagnetic screen ventilating device is heavy, the shielding performance and the dustproof efficacy are poor, and the like. The electromagnetic shielding and ventilating device comprises a metal shielding mesh and metal protective meshes arranged on two sides of the metal shielding mesh. The utility model has the advantages of good electromagnetic shielding performance, light weight, thin thickness, convenient shielding performance adjustment, convenient disassembly, timely metal shielding mesh cleaning or replacement, long service life and wide application range.
Description
Technical field
The utility model relates to electromagnetic shielding equipment, especially designs the electromagnetic shielding ventilation unit.
Background technology
Ventilation hole is the passage that electronic equipment carries out ventilation and heat, and the area of ventilation hole and maximum dimension size are all bigger, is that stitch in a class hole that influences electronic equipment generation electromagnetic interference maximums such as cabinet.The ventilation shielding material can shield electromagnetic interference, can carry out ventilation and heat again.Can be widely used in radar, computer, communication equipment, electronics shelter and shielded enclosure etc.But, existing can shield electromagnetic interference ventilation unit have all that volume is big, weight is heavier, shortcoming such as dustproof and shielding properties is relatively poor.
Summary of the invention
The technical problem that the utility model solves provides good, the lightweight electromagnetic shielding ventilation unit of a kind of capability of electromagnetic shielding, and it has solved technical problems such as existing electromagnetic shielding ventilation unit Heavy Weight, shielding properties and dustproof inefficiency.
Technical solution of the present utility model is:
A kind of electromagnetic shielding ventilation unit comprises metallic shield net and the Chain Link Fence that is arranged on metallic shield net both sides.
Above-mentioned metallic shield net is one deck foaming metal net.
Above-mentioned metallic shield net is two-layer foaming metal net, and described two-layer foaming metal net is respectively the foaming metal net that different metal material is made.
Above-mentioned metallic shield net is one deck foaming metal net and layer of metal mesh grid.
Above-mentioned electromagnetic shielding ventilation unit also comprises two metal fixed frames that are separately positioned on the Chain Link Fence outside, described metal fixed frame is provided with ventilating opening, described at least one metal fixed frame is provided with at least two installing holes, adopts riveted joint, bearing pin to connect between described two metal fixed frames or the drawer type connection.
Above-mentioned electromagnetic shielding ventilation unit also comprises the electromagnetic shielding liner that is arranged on around one of them metal fixed frame outside.
Be provided with the metallic gasket that adapts with position of mounting hole between above-mentioned electromagnetic shielding liner and the metal fixed frame.
Above-mentioned electromagnetic shielding liner is conductive rubber liner, metal spring leaf liner, sponge rubber combined helical pipe liner or wire mesh pad.
Above-mentioned foaming metal net is nickel system, iron, copper or aluminum foaming metal net.
The utility model has the advantages that:
1, capability of electromagnetic shielding is good.The utility model adopts the foaming metal net as main shielding material, and Chain Link Fence also can carry out certain shielding action simultaneously; If adopt two-layer different foaming metal net or one deck foaming metal net and layer of metal establishment net to be used in combination, just can shield the more electromagnetic radiation of wide frequency ranges.
2, in light weight, thin thickness.In light weight, the thin thickness of foaming metal net are suitable for the restricted occasion of weight and volume is used.
3, be convenient to regulate shielding properties.By changing the foaming metal net of different materials, can regulate suitable frequency range of the present utility model.
4, be convenient to dismounting, can clean or change the metallic shield net at any time.Metal fixed frame of the present utility model adopts bearing pin to connect or drawer type connects, and can change very easily
5, long service life.Because metallic shield net and Chain Link Fence adopt metallic nickel or nickel plating technology to handle, the nickel self performance has determined electrochemical corrosion performance fine, long service life.
6, applied widely.The utility model can be widely used in fields such as radar, computer, communication equipment, electronics shelter and shielded enclosure.
Description of drawings
Fig. 1 is the structural representation of metallic shield net and Chain Link Fence;
Fig. 2 is the decomposing schematic representation of metallic shield net and Chain Link Fence;
Fig. 3 is the structural representation with the electromagnetic shielding ventilation unit of circular ventilating window;
Fig. 4 is the structural representation with the electromagnetic shielding ventilation unit of square ventilating window;
Fig. 5 is the structural representation of sponge rubber combined helical pipe liner of the present utility model;
Fig. 6 is the structural representation of wire mesh pad of the present utility model;
Fig. 7 is the structural representation of a kind of metal spring leaf liner of the present utility model;
Fig. 8 is the structural representation of another kind of metal spring leaf liner of the present utility model;
1-Chain Link Fence wherein, 2-metallic shield net, 3-metal fixed frame, 4-ventilating opening, 5-installing hole, 6-electromagnetic shielding liner.
Embodiment
Referring to Fig. 1, Fig. 2, the simplest version of the utility model electromagnetic shielding ventilation unit includes only metallic shield net 2 and is arranged on the Chain Link Fence 1 of metallic shield net 2 both sides, and ventilating opening 4 places that are fixed in cabinet with screw and pad during use get final product.Metallic shield net 2 can be one deck foaming metal net, also can be two-layerly to make the foaming metal net by different metal material respectively, such as one deck wherein is the nickel system or the iron foaming metal net of high magnetic permeability, another layer then is the copper or the aluminum foaming metal net of low magnetic permeability, in order to adapt to different application scenarios, also can adopt the form of one deck foaming metal net and layer of metal mesh grid combination.
In order to improve intensity, also can install the metal fixed frame 3 of a band ventilating opening 4 in the outside separately of two Chain Link Fences respectively additional, referring to Fig. 3, Fig. 4, it is mutual fixedly connected to adopt the riveted joint mode to carry out between two metal frames, is provided with at least two installing holes 5 and is used for and being connected of equipment such as cabinet on two metal frames; Also can adopt bearing pin to connect between two metal frames or the drawer type connected mode is carried out detachable connection, at this moment, at least two installing holes 5 are used for and being connected of cabinet on a relatively-stationary metal frame.
In order to prevent that the gap between ventilation unit and the cabinet from electromagnetic exposure taking place, also a circle electromagnetic shielding liner 6 can be set around inboard metal fixed frame 3.Referring to Fig. 5, Fig. 6, electromagnetic shielding liner 6 can adopt forms such as conductive rubber liner, metal spring leaf liner, sponge rubber combined helical pipe liner or wire mesh pad.The sheet metal gasket construction is referring to Fig. 7, Fig. 8.
When ventilation unit is installed; sometimes in order to control the compression ratio of electromagnetic shielding liner 6; can between electromagnetic shielding liner 6 and metal fixed frame 3, be provided with installing hole 5 positions adapt, the corresponding to common metal pad of quantity, these metallic gaskets have also played the certain protection effect to electromagnetic shielding liner 6.
The utility model principle: the foaming metal ventilating window is the novel shielding venting materials of being made by foaming metals such as nickel, iron and high magnetic permeability wire netting.The foaming metal pore size is less, has possessed higher broadband screening effectiveness and filter dirt performance in limited thickness; The high magnetic permeability wire netting of plating nickel on surface provides higher low frequency magnetic shield performance, has also played the protective effect to the foaming metal material simultaneously.Consider from composite factor, the foaming metal ventilating window is in all shielding venting materials, it is the thinnest to reach certain screening effectiveness desired thickness, electrochemical corrosion performance is best, and have the shielding venting materials of the best of good ventilation, shielding, combination property such as dustproof simultaneously, have extraordinary application prospect.Be particularly useful for space flight, aviation and portable computer etc. and be subjected to volume, the tighter electronic equipment of weight limits.
Claims (9)
1. electromagnetic shielding ventilation unit, it is characterized in that: it comprises metallic shield net (2) and is arranged on the Chain Link Fence (1) of metallic shield net (2) both sides.
2. electromagnetic shielding ventilation unit according to claim 1 is characterized in that: described metallic shield net (2) is one deck foaming metal net.
3. electromagnetic shielding ventilation unit according to claim 1 is characterized in that: described metallic shield net (2) is two-layer foaming metal net, and described two-layer foaming metal net is respectively the foaming metal net that different metal material is made.
4. electromagnetic shielding ventilation unit according to claim 1 is characterized in that: described metallic shield net (2) is one deck foaming metal net and layer of metal mesh grid.
5. according to claim 1 or 2 or 3 or 4 described electromagnetic shielding ventilation units, it is characterized in that: described electromagnetic shielding ventilation unit also comprises two the metal fixed frames (3) that are separately positioned on Chain Link Fence (1) outside, described metal fixed frame (3) is provided with ventilating opening (4), described at least one metal fixed frame (3) is provided with at least two installing holes (5), adopts riveted joint, bearing pin to connect between described two metal fixed frames (3) or the drawer type connection.
6. electromagnetic shielding ventilation unit according to claim 5 is characterized in that: described electromagnetic shielding ventilation unit also comprises the electromagnetic shielding liner (6) that is arranged on around one of them metal fixed frame (3) outside.
7. electromagnetic shielding ventilation unit according to claim 6 is characterized in that: be provided with the metallic gasket that adapts with position of mounting hole between described electromagnetic shielding liner (6) and the metal fixed frame (3).
8. electromagnetic shielding ventilation unit according to claim 7 is characterized in that: described electromagnetic shielding liner is conductive rubber liner, metal spring leaf liner, sponge rubber combined helical pipe liner or wire mesh pad.
9. electromagnetic shielding ventilation unit according to claim 8 is characterized in that: described foaming metal net is nickel system, iron, copper or aluminum foaming metal net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200294310U CN201234439Y (en) | 2008-06-24 | 2008-06-24 | Electromagnetic shielding ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200294310U CN201234439Y (en) | 2008-06-24 | 2008-06-24 | Electromagnetic shielding ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234439Y true CN201234439Y (en) | 2009-05-06 |
Family
ID=40620826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200294310U Expired - Fee Related CN201234439Y (en) | 2008-06-24 | 2008-06-24 | Electromagnetic shielding ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234439Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917829A (en) * | 2010-08-24 | 2010-12-15 | 哈尔滨工业大学 | Electronic equipment housing with electromagnetic-shielding efficient heat radiating hole based on frequency selecting surface technique |
| 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 |
| CN102958334A (en) * | 2012-11-23 | 2013-03-06 | 西安开容电子技术有限责任公司 | Foamed metal ventilating window |
| CN111902037A (en) * | 2020-08-14 | 2020-11-06 | 扬州斯帕克实业有限公司 | Flexible electromagnetic shielding fabric waveguide window with ventilation and light transmission functions |
-
2008
- 2008-06-24 CN CNU2008200294310U patent/CN201234439Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917829A (en) * | 2010-08-24 | 2010-12-15 | 哈尔滨工业大学 | Electronic equipment housing with electromagnetic-shielding efficient heat radiating hole based on frequency selecting surface technique |
| 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 |
| CN102958334A (en) * | 2012-11-23 | 2013-03-06 | 西安开容电子技术有限责任公司 | Foamed metal ventilating window |
| CN111902037A (en) * | 2020-08-14 | 2020-11-06 | 扬州斯帕克实业有限公司 | Flexible electromagnetic shielding fabric waveguide window with ventilation and light transmission functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20100624 |