CN102843901A - High-screen-effect clamp screen shielding window - Google Patents
High-screen-effect clamp screen shielding window Download PDFInfo
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- CN102843901A CN102843901A CN201210305449XA CN201210305449A CN102843901A CN 102843901 A CN102843901 A CN 102843901A CN 201210305449X A CN201210305449X A CN 201210305449XA CN 201210305449 A CN201210305449 A CN 201210305449A CN 102843901 A CN102843901 A CN 102843901A
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Abstract
The invention discloses a high-screen-effect clamp screen shielding window which comprises an upper interlayer, a lower interlayer and a screen arranged between the upper interlayer and the lower interlayer. The screen uses metal wires, three layers of coating layers are coated on the peripheries of the metal wires, the coating layer on the innermost layer and the coating layer on the outmost layer are high permeability layers, and the coating in the middle layer is a high conductivity layer. The high-screen-effect clamp screen shielding window has high screen effect in high frequency sections and also has high screen effect in low frequency section, remains high transmittance, can serve as an electromagnetic shielding window, and is suitable for low radiation computers, shielding machine cabinets and all shielding projects.
Description
Technical field
The present invention relates to a kind of electromagnetic shielding form, specifically, relate to the wired screen of a kind of high shielding effect and cover form.
Background technology
Wired screen covers the important component part that form is all kinds of electromagnetic shielding equipment and shield engineering, at home and abroad electromagnetic shielding and electromagnetic compatibility industry widespread usage.Wired screen covers the important component part that form is all kinds of electromagnetic shielding equipment and shield engineering, and general version is that woven wire is sandwiched between the two-layer simple glass, and it has higher shielding properties to electromagnetic wave, has certain light transmittance simultaneously.Wherein glass can use multiple transparent polymer material such as acrylic, PET, PC to replace, and is two kinds of stainless (steel) wire, copper mesh and woven wire generally adopts both at home and abroad, add on the silk screen surface coating then melanism form.Also have product to adopt common non-metallic fibers silk, the plating melanism is handled then.There is a shortcoming usually in this type form at present, and promptly high band has good screen effect, but imitates relatively poor at the low-frequency range screen.Existing wired screen covers form imitates lowlyer at the low-frequency range screen, screen is imitated about 10dB during general 14kHz, and screen is imitated about 20dB during 200kHz.This has limited it to a certain extent and has used, and the especially new mark B of army level, C level have proposed higher screen to low-frequency range and imitated requirement.
Summary of the invention
Technical problem to be solved by this invention provides the wired screen of a kind of high shielding effect and covers form, and not only the high band screen is imitated well, and the screening effectiveness of low-frequency range also significantly improves.
Technical scheme of the present invention is following:
The wired screen of a kind of high shielding effect covers form; Comprise the silk screen that fluctuate interlayer is middle with being located at fluctuate interlayer, said silk screen adopts wire, and said wire periphery is coated with three layers of coating; Innermost layer coating and outermost layer coating are high magnetic permeability layer, and intermediate layer coating is the high conductivity layer.
Further: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by nickel dam, silver layer and nickel dam.
Further: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by iron layer, silver layer and nickel dam.
Further: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by nickel dam, molybdenum layer and nickel dam.
Further: the order number of said silk screen is 250 orders.
Further: said wire is stainless steel or copper.
Further: the thickness of said three layers of coating is respectively 5 μ m.
Further: the thickness of said fluctuate interlayer is respectively 2mm.
Further: said fluctuate interlayer is glass or transparent polymer material.
Further: said transparent polymer material is acrylic, Merlon or PETG.
Technique effect of the present invention is following:
1, the wired screen of high shielding effect of the present invention covers form and not only has high screen at high band and imitate, and also has higher screen in low-frequency range and imitate.
2, the wired screen of high shielding effect of the present invention covers form and has kept higher light transmittance, can be used as the electromagnetic shielding form, is used for low radiation computer, shielding rack and all kinds of shield engineering.
Description of drawings
Fig. 1 is the sketch map of silk screen behind three layers of coating of plating of embodiments of the invention 1;
Fig. 2 is the sectional view of the individual thread of silk screen behind three layers of coating of plating of embodiments of the invention 1.
Embodiment
Describe below in conjunction with the embodiment specific embodiments of the invention.
Embodiment 1
The wired screen of the high shielding effect of present embodiment covers form selects 250 order stainless steel cloths for use.Adopt chemical plating process nickel plating successively, silver and nickel from inside to outside on the net at this stainless steel wire.Nickel has high magnetic permeability, and silver has high conductivity.Diameter is 25 μ m before three layers of coating of stainless steel cloth plating.In order to guarantee light transmittance, the thickness of two-layer nickel coating and silver coating is respectively 5 μ m, makes light transmittance more than 25%.As shown in Figure 1, be the sketch map of silk screen behind three layers of coating of plating of embodiments of the invention 1.After complete silk screen moulding, the individual thread diameter is 45 μ m, and the mesh length of side is 70 μ m.It is that two blocks of glass of 2mm are suppressed with silk screen that fluctuate interlayer adopts monolithic thickness, finally forms wired screen and covers form, and whole sample thickness is 4.1 ~ 4.6mm.
As shown in Figure 2, be the sectional view of the individual thread of silk screen behind three layers of coating of plating of embodiments of the invention 1.Individual thread is high-visible with three layers of coating on it, and nickel-Yin-three layers of coating of nickel depend on each other, and adhesion is stronger.
Screen effect of covering form for the wired screen of high shielding effect of the embodiment of the invention 1 as shown in table 1.This screen is imitated the shielded enclosure method of testing test of adopting among the GB/T5792-2006 " military classified information system's electromagnetic shield grade classification and method of measurement ".The wired screen of the high shielding effect of embodiment 1 covers form and when low frequency 14kHz, shields to imitate and can reach more than the 30dB, and screen is imitated and reached more than the 40dB during 200kHz.Can reach more than the 90dB at high frequency 450MHz, 950Hz frequency, 3GHz, 6GHz frequency range can reach more than the 80dB.
Embodiment 2
The wired screen of the high shielding effect of present embodiment covers form selects 250 order stainless steel cloths for use.Adopt electroplating technology plating iron successively, silver and nickel from inside to outside on the net at this stainless steel wire.Iron and nickel have high magnetic permeability, and silver has high conductivity.Diameter is 25 μ m before three layers of coating of stainless steel cloth plating.In order to guarantee light transmittance, the thickness of plating iron layer, nickel coating and silver coating is respectively 5 μ m, makes light transmittance more than 25%.It is that two acrylics of 2mm are suppressed with silk screen that fluctuate interlayer adopts monolithic thickness, finally forms wired screen and covers form, and whole sample thickness is 4.1 ~ 4.6mm.
Screen effect of covering form for the wired screen of high shielding effect of the embodiment of the invention 2 as shown in table 2.This screen is imitated the shielded enclosure method of testing test of adopting among the GB/T 5792-2006 " military classified information system's electromagnetic shield grade classification and method of measurement ".The wired screen of the high shielding effect of embodiment 2 covers form and when low frequency 14kHz, shields to imitate and can reach more than the 20dB, and screen is imitated and reached more than the 40dB during 200kHz.Can reach more than the 70dB at high frequency 450MHz, 950Hz frequency, 3GHz, 6GHz frequency range can reach more than the 60dB.
Embodiment 3
The wired screen of the high shielding effect of present embodiment covers form selects 250 order stainless steel cloths for use.Adopt chemical plating process nickel plating successively, molybdenum and nickel from inside to outside on the net at this stainless steel wire.Nickel has high magnetic permeability, and molybdenum has high conductivity.Diameter is 25 μ m before three layers of coating of stainless steel cloth plating.In order to guarantee light transmittance, two-layer nickel coating is respectively 5 μ m with the thickness of plating molybdenum layer, makes light transmittance more than 25%.It is that two blocks of Merlon (PC) resins of 2mm are suppressed with silk screen that fluctuate interlayer adopts monolithic thickness, finally forms wired screen and covers form, and whole sample thickness is 4.1 ~ 4.6mm.
Screen effect of covering form for the wired screen of high shielding effect of the embodiment of the invention 3 as shown in table 3.This screen is imitated the shielded enclosure method of testing test of adopting among the GB/T 5792-2006 " military classified information system's electromagnetic shield grade classification and method of measurement ".The wired screen of the high shielding effect of embodiment 3 covers form and when low frequency 14kHz, shields to imitate and can reach 20dB, and screen is imitated and reached 40dB during 200kHz.Can reach more than the 70dB at high frequency 450MHz, 950Hz frequency, 3GHz, 6GHz frequency range can reach more than the 60dB.
Embodiment 4
The wired screen of the high shielding effect of present embodiment covers form selects 250 order copper mesh for use.On this copper mesh, adopt chemical plating process nickel plating successively, silver and nickel from inside to outside.Nickel has high magnetic permeability, and silver has high conductivity.Diameter is 25 μ m before three layers of coating of copper mesh plating.In order to guarantee light transmittance, the thickness of two-layer nickel coating and silver coating is respectively 5 μ m, makes light transmittance more than 25%.It is that two blocks of PETG (PET) plastics of 2mm are suppressed with silk screen that fluctuate interlayer adopts monolithic thickness, finally forms wired screen and covers form, and whole sample thickness is 4.1 ~ 4.6mm.
Screen effect of covering form for the wired screen of high shielding effect of the embodiment of the invention 4 as shown in table 4.This screen is imitated the shielded enclosure method of testing test of adopting among the GB/T 5792-2006 " military classified information system's electromagnetic shield grade classification and method of measurement ".The wired screen of the high shielding effect of embodiment 4 covers form and when low frequency 14kHz, shields to imitate and can reach 30dB, and screen is imitated and reached 42dB during 200kHz.Can reach more than the 88dB at high frequency 450MHz, 950Hz frequency, 3GHz, 6GHz frequency range can reach more than the 80dB.
The above is merely the embodiment of invention.Protection scope of the present invention is not limited thereto, and any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
The wired screen of the high shielding effect of table 1 embodiment of the invention 1 covers the screen effect of form
The wired screen of the high shielding effect of table 2 embodiment of the invention 2 covers the screen effect of form
The wired screen of the high shielding effect of table 3 embodiment of the invention 3 covers the screen effect of form
The wired screen of the high shielding effect of table 4 embodiment of the invention 4 covers the screen effect of form
Claims (10)
1. the wired screen of high shielding effect covers form; Comprise the silk screen that fluctuate interlayer is middle with being located at fluctuate interlayer; It is characterized in that: said silk screen adopts wire; Said wire periphery is coated with three layers of coating, and innermost layer coating and outermost layer coating are high magnetic permeability layer, and intermediate layer coating is the high conductivity layer.
2. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by nickel dam, silver layer and nickel dam.
3. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by iron layer, silver layer and nickel dam.
4. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: the innermost layer coating of said three layers of coating, intermediate layer coating and outermost layer coating are followed successively by nickel dam, molybdenum layer and nickel dam.
5. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: the order number of said silk screen is 250 orders.
6. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: said wire is stainless steel or copper.
7. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: the thickness of said three layers of coating is respectively 5 μ m.
8. the wired screen of high shielding effect as claimed in claim 1 covers form, and it is characterized in that: the thickness of said fluctuate interlayer is respectively 2mm.
9. the wired screen of high shielding effect as claimed in claim 1 covers form, it is characterized in that: said fluctuate interlayer is glass or transparent polymer material.
10. the wired screen of high shielding effect as claimed in claim 9 covers form, it is characterized in that: said transparent polymer material is acrylic, Merlon or PETG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210305449XA CN102843901A (en) | 2012-08-24 | 2012-08-24 | High-screen-effect clamp screen shielding window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210305449XA CN102843901A (en) | 2012-08-24 | 2012-08-24 | High-screen-effect clamp screen shielding window |
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| Publication Number | Publication Date |
|---|---|
| CN102843901A true CN102843901A (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210305449XA Pending CN102843901A (en) | 2012-08-24 | 2012-08-24 | High-screen-effect clamp screen shielding window |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130421A (en) * | 2013-04-03 | 2013-06-05 | 中国兵器工业集团第五三研究所 | Nickel plating silvered glass bead and preparation method thereof |
| CN105909051A (en) * | 2016-05-13 | 2016-08-31 | 天诺光电材料股份有限公司 | Flexible ventilating daylighting electromagnetic shielding window |
| CN106057287A (en) * | 2016-05-13 | 2016-10-26 | 天诺光电材料股份有限公司 | Transparent conductive material for wideband shielding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558017A (en) * | 2004-01-13 | 2004-12-29 | 长沙力元新材料股份有限公司 | Nickel-copper composite metal textile and preparation method thereof |
| CN201637909U (en) * | 2010-03-03 | 2010-11-17 | 秦皇岛波盾电子有限公司 | Electromagnetic shielding window with conductive foam edge covering |
| CN102781208A (en) * | 2012-08-02 | 2012-11-14 | 费群星 | Shielding wire for shielding window, wire screen and wire-screen-sandwiched shielding window |
-
2012
- 2012-08-24 CN CN201210305449XA patent/CN102843901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558017A (en) * | 2004-01-13 | 2004-12-29 | 长沙力元新材料股份有限公司 | Nickel-copper composite metal textile and preparation method thereof |
| CN201637909U (en) * | 2010-03-03 | 2010-11-17 | 秦皇岛波盾电子有限公司 | Electromagnetic shielding window with conductive foam edge covering |
| CN102781208A (en) * | 2012-08-02 | 2012-11-14 | 费群星 | Shielding wire for shielding window, wire screen and wire-screen-sandwiched shielding window |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130421A (en) * | 2013-04-03 | 2013-06-05 | 中国兵器工业集团第五三研究所 | Nickel plating silvered glass bead and preparation method thereof |
| CN105909051A (en) * | 2016-05-13 | 2016-08-31 | 天诺光电材料股份有限公司 | Flexible ventilating daylighting electromagnetic shielding window |
| CN106057287A (en) * | 2016-05-13 | 2016-10-26 | 天诺光电材料股份有限公司 | Transparent conductive material for wideband shielding |
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Application publication date: 20121226 |