CN103773233A - Shielding coating for low-frequency transformer - Google Patents
Shielding coating for low-frequency transformer Download PDFInfo
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- CN103773233A CN103773233A CN201410025797.0A CN201410025797A CN103773233A CN 103773233 A CN103773233 A CN 103773233A CN 201410025797 A CN201410025797 A CN 201410025797A CN 103773233 A CN103773233 A CN 103773233A
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Abstract
The invention discloses a shielding coating for a low-frequency transformer, wherein the coating is coated at the inner side of a shell of the low-frequency transformer and is prepared by taking organic silicon resin as adhesive resin and aluminum silicate fiber as a dispersing agent, adding nano-zinc oxide, copper powder and titanium dioxide and also adding a coupling agent and colloidal graphite powder. The shielding coating for the low-frequency transformer, provided by the technical scheme of the invention, has the advantages that the electromagnetic radiation of the low-frequency transformer is greatly reduced by utilizing the electromagnetic shielding effects of the nano-zinc oxide and the copper powder; the coating is stable in performance and durable in application and has the characteristics of high efficiency and low cost.
Description
Technical field
The present invention relates to the curtain coating of a kind of coating for EMI shielding, particularly a kind of low-frequency transformer.
Background technology
The fast development of the communications industry, what bring is not the facility of life and work, has also brought a large amount of electromagnetic radiation.Electromagnetic radiation now has been full of around us, and a large amount of electromagnetic radiation has brought serious radiation hazradial bundle.Being the harm to people self health on the one hand, is the harm to electronics, power equipment on the other hand.For the harm of electronics, electric power, understand the normal work of severe jamming equipment, thereby have influence on our life.Especially the electromagnetic radiation of low frequency magnetic field, endangers even more serious.In prior art, mostly reduce the method for low frequency magnetic field harm, to adjust structure as main, increase shielded cell or all parts is rationally set, act on limitedly, and improvement cost is higher, and cost performance is lower.
Summary of the invention
Goal of the invention: for above-mentioned deficiency, the object of the invention is the curtain coating of the electromagnetic radiation that a kind of effective reduction low-frequency transformer can be provided.
Technical scheme of the present invention: a kind of shielding coating of low-frequency transformer, wherein, coating is coated on the shell inner side of low-frequency transformer, coating is using silicone resin as adhesive resin, take aluminum silicate fiber as dispersion agent, add nano zine oxide, copper powder and titanium dioxide, wherein also add coupling agent and gluey Graphite Powder 99.
As preferably, coupling agent is titanate coupling agent.
As preferably, the mass fraction of the each component of coating is: silicone resin 55-75 part, aluminum silicate fiber 3-9 part, nano zine oxide 3-6 part, copper powder 5-9 part, titanium dioxide 5-9 part, coupling agent 3-7 part and gluey Graphite Powder 99 2-5 part.
Beneficial effect: the shielding coating of low-frequency transformer that technical solution of the present invention provides, utilize the electromagnetic shielding of nano zine oxide-copper powder corresponding, reduce greatly the electromagnetic radiation of low-frequency transformer, its coating performance is stable, can use lastingly, have the advantages that efficient cost is low.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these are described is for further illustrating the features and advantages of the present invention, rather than limiting to the claimed invention.
Embodiment 1
A kind of shielding coating of low-frequency transformer, wherein, coating is coated on the shell inner side of low-frequency transformer, coating is using silicone resin as adhesive resin, take aluminum silicate fiber as dispersion agent, add nano zine oxide, copper powder and titanium dioxide, wherein also add coupling agent and gluey Graphite Powder 99, the mass fraction of the each component of coating is: 2 parts of 55 parts of silicone resins, 3 parts of aluminum silicate fibers, 3 parts of nano zine oxides, 5 parts of copper powders, 5 parts of titanium dioxides, 3 parts of titanate coupling agents and gluey Graphite Powder 99s.
Embodiment 2
A kind of shielding coating of low-frequency transformer, wherein, coating is coated on the shell inner side of low-frequency transformer, coating is using silicone resin as adhesive resin, take aluminum silicate fiber as dispersion agent, add nano zine oxide, copper powder and titanium dioxide, wherein also add coupling agent and gluey Graphite Powder 99, the mass fraction of the each component of coating is: 5 parts of 75 parts of silicone resins, 9 parts of aluminum silicate fibers, 6 parts of nano zine oxides, 9 parts of copper powders, 9 parts of titanium dioxides, 7 parts of titanate coupling agents and gluey Graphite Powder 99s.
Embodiment 3
A kind of shielding coating of low-frequency transformer, wherein, coating is coated on the shell inner side of low-frequency transformer, coating is using silicone resin as adhesive resin, take aluminum silicate fiber as dispersion agent, add nano zine oxide, copper powder and titanium dioxide, wherein also add coupling agent and gluey Graphite Powder 99, the mass fraction of the each component of coating is: 3 parts of 65 parts of silicone resins, 7 parts of aluminum silicate fibers, 5 parts of nano zine oxides, 6 parts of copper powders, 6 parts of titanium dioxides, 6 parts of titanate coupling agents and gluey Graphite Powder 99s.
Below by specific experiment, further illustrate the excellent effect that the present invention reaches.
The coating that above-mentioned embodiment is made is coated on low-frequency transformer shell inner side, is experimental group; Be control group by the low-frequency transformer not processing, carry out electromagnetic radiation test, result is as follows:
Electromagnetic shielding rate: embodiment 1 is that 91%, embodiment 2 is that 93%, embodiment 3 is 93%; Control group is 63%.
Hence one can see that, and shielding coating of low-frequency transformer provided by the invention has the performance of better electromagnetic radiation shielding.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a shielding coating of low-frequency transformer, it is characterized in that: coating is coated on the shell inner side of low-frequency transformer, and coating is using silicone resin as adhesive resin, take aluminum silicate fiber as dispersion agent, add nano zine oxide, copper powder and titanium dioxide, wherein also add coupling agent and gluey Graphite Powder 99.
2. shielding coating of low-frequency transformer according to claim 1, is characterized in that: coupling agent is titanate coupling agent.
3. shielding coating of low-frequency transformer according to claim 1, is characterized in that: the mass fraction of the each component of coating is: silicone resin 55-75 part, aluminum silicate fiber 3-9 part, nano zine oxide 3-6 part, copper powder 5-9 part, titanium dioxide 5-9 part, coupling agent 3-7 part and gluey Graphite Powder 99 2-5 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025797.0A CN103773233A (en) | 2014-01-20 | 2014-01-20 | Shielding coating for low-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025797.0A CN103773233A (en) | 2014-01-20 | 2014-01-20 | Shielding coating for low-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
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| CN103773233A true CN103773233A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410025797.0A Pending CN103773233A (en) | 2014-01-20 | 2014-01-20 | Shielding coating for low-frequency transformer |
Country Status (1)
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| CN (1) | CN103773233A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364078A (en) * | 2015-11-18 | 2016-03-02 | 北京有色金属研究总院 | Method for preparing soft magnetic alloy coating |
| CN106967313A (en) * | 2017-03-24 | 2017-07-21 | 合肥羿振电力设备有限公司 | A kind of distribution transformer coating for shielding low frequency magnetic field and preparation method thereof |
| CN108369856A (en) * | 2015-12-16 | 2018-08-03 | 华为技术有限公司 | A kind of magnetic screen power inductance and manufacturing method |
| CN114265234A (en) * | 2021-11-20 | 2022-04-01 | 江苏双星彩塑新材料股份有限公司 | Optical high-transmittance diffusion film for liquid crystal display backlight module |
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| JPH0657183A (en) * | 1992-08-05 | 1994-03-01 | Murata Mfg Co Ltd | Conductive paste |
| CN102816520A (en) * | 2012-09-04 | 2012-12-12 | 中国兵器工业集团第五三研究所 | High-temperature-resistant antistatic coating |
| CN102850885A (en) * | 2012-09-20 | 2013-01-02 | 吴江市天源塑胶有限公司 | Conductive coating used for plastic surface |
| CN102952439A (en) * | 2012-11-13 | 2013-03-06 | 西安交通大学 | Composite carbon conductive coating and preparation method thereof |
| CN103468130A (en) * | 2013-09-03 | 2013-12-25 | 吴江市冰心文教用品有限公司 | High temperature resistant anticorrosive paint |
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2014
- 2014-01-20 CN CN201410025797.0A patent/CN103773233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657183A (en) * | 1992-08-05 | 1994-03-01 | Murata Mfg Co Ltd | Conductive paste |
| CN102816520A (en) * | 2012-09-04 | 2012-12-12 | 中国兵器工业集团第五三研究所 | High-temperature-resistant antistatic coating |
| CN102850885A (en) * | 2012-09-20 | 2013-01-02 | 吴江市天源塑胶有限公司 | Conductive coating used for plastic surface |
| CN102952439A (en) * | 2012-11-13 | 2013-03-06 | 西安交通大学 | Composite carbon conductive coating and preparation method thereof |
| CN103468130A (en) * | 2013-09-03 | 2013-12-25 | 吴江市冰心文教用品有限公司 | High temperature resistant anticorrosive paint |
Non-Patent Citations (1)
| Title |
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| 王光彬: "《涂料与涂装技术》", 31 August 1994 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364078A (en) * | 2015-11-18 | 2016-03-02 | 北京有色金属研究总院 | Method for preparing soft magnetic alloy coating |
| CN108369856A (en) * | 2015-12-16 | 2018-08-03 | 华为技术有限公司 | A kind of magnetic screen power inductance and manufacturing method |
| CN106967313A (en) * | 2017-03-24 | 2017-07-21 | 合肥羿振电力设备有限公司 | A kind of distribution transformer coating for shielding low frequency magnetic field and preparation method thereof |
| CN114265234A (en) * | 2021-11-20 | 2022-04-01 | 江苏双星彩塑新材料股份有限公司 | Optical high-transmittance diffusion film for liquid crystal display backlight module |
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Application publication date: 20140507 |
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