CN105655091A - Low frequency transformer shielding layer - Google Patents
Low frequency transformer shielding layer Download PDFInfo
- Publication number
- CN105655091A CN105655091A CN201410567891.9A CN201410567891A CN105655091A CN 105655091 A CN105655091 A CN 105655091A CN 201410567891 A CN201410567891 A CN 201410567891A CN 105655091 A CN105655091 A CN 105655091A
- Authority
- CN
- China
- Prior art keywords
- shielding
- frequency transformer
- screening
- housing
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a low frequency transformer shielding layer; a shielding housing is also arranged outside the transformer, and made of aluminium material or aluminium alloy material; the inner surface and outer surface of the shielding housing are respectively coated with a shielding coating mainly formed by ferrite magnetic powder; a titanate coupling agent is added, non-ionic high-molecular glucan and anionic high-molecular sodium alginate are selected as ferrite powder surface modifier and diluents, and thermoplastic acrylic resin serves as adhesive; the prepared micro powder coating is coated on the inner and outer surfaces of the shielding housing; compared with the prior art, the low frequency transformer is provided with the shielding protection housing; the shielding housing is made of cheap material so as to save cost; the inner and outer surfaces of the housing are coated with the shielding coating made of magnetic material, thus generating protection effect, and saving cost.
Description
Technical field
The present invention relates to transformer technology field, particularly a kind of screen layer for low-frequency transformer.
Background technology
Along with the fast development of the technology such as electronics, communication, electromagnetic radiation has become a kind of new source of pollution, and the World Health Organization is classified as electromagnetic radiation pollution as the big public hazards in third place in the world. A series of problems such as electromagnetic radiation pollution can cause that electromagnetic interference, electromagnetic environmental pollution and electromagnetic information are divulged a secret. The research major part in past concentrates on the radiation harm of electric field. Now by investigating discovery in a large number, the harm of low frequency magnetic field is particularly serious. On the one hand, the magneticinterference that low frequency magnetic field produces is the important factor affecting other electronic electric equipment normal operation. Such as, the low-frequency magnetic field energy that engine produces makes the image of neighbouring computer and reading and signal equipment produce distortion. On the other hand, low frequency magnetic field can make central nervous system disorder, the cardiovascular systems imbalance of human body, and increases the sickness rate of leukemia, brain tumor, mammary cancer. Therefore, low frequency magnetic field can seriously jeopardize national politics, military affairs and social safety, takes prevention and management measure to seem very necessary the radiation of low frequency magnetic field. Along with the fast development of the technology such as electronics, communication, electromagnetic radiation has become a kind of new source of pollution, and the World Health Organization is classified as electromagnetic radiation pollution as the big public hazards in third place in the world. A series of problems such as electromagnetic radiation pollution can cause that electromagnetic interference, electromagnetic environmental pollution and electromagnetic information are divulged a secret. The research major part in past concentrates on the radiation harm of electric field. Now by investigating discovery in a large number, the harm of low frequency magnetic field is particularly serious. On the one hand, the magneticinterference that low frequency magnetic field produces is the important factor affecting other electronic electric equipment normal operation. Such as, the low-frequency magnetic field energy that engine produces makes the image of neighbouring computer and reading and signal equipment produce distortion. On the other hand, low frequency magnetic field can make central nervous system disorder, the cardiovascular systems imbalance of human body, and increases the sickness rate of leukemia, brain tumor, mammary cancer. Therefore, low frequency magnetic field can seriously jeopardize national politics, military affairs and social safety, takes prevention and management measure to seem very necessary the radiation of low frequency magnetic field.
The method reducing low frequency magnetic field radiation has a lot, except structurally reasonable line arrangement, rationally settle component except, adopting magnetic shielding material to carry out magnetic shielding is also one effective ways. Such as, set up magnetic shield room with magnetic shielding material, electric power, electronic equipment casing are carried out magnetic shielding, with magnetic shielding material, signal wire and supply lead is shielded, reach and prevent foreign field to the object of equipment, device interference. Therefore, from material angle, research and develop new low-frequency electromagnetic wave magnetic shielding material particularly necessary. The single-materials such as traditional low-frequency magnetic shielding material many employings steel sheet, thin slice, strip, as low-frequency magnetic shielding material made by conventional iron, siliconized plate, stainless steel, permalloy etc. Material is often machined into thin plate, thin slice or strip, and this not only can reduce the magnetic shield performance of material, and make energy consumption increase, cost increase, cost performance reduce in-convenience in use. The method reducing low frequency magnetic field radiation has a lot, except structurally reasonable line arrangement, rationally settle component except, adopting magnetic shielding material to carry out magnetic shielding is also one effective ways. Such as, set up magnetic shield room with magnetic shielding material, electric power, electronic equipment casing are carried out magnetic shielding, with magnetic shielding material, signal wire and supply lead is shielded, reach and prevent foreign field to the object of equipment, device interference. Therefore, from material angle, research and develop new low-frequency electromagnetic wave magnetic shielding material particularly necessary. The single-materials such as traditional low-frequency magnetic shielding material many employings steel sheet, thin slice, strip, as low-frequency magnetic shielding material made by conventional iron, siliconized plate, stainless steel, permalloy etc. Material is often machined into thin plate, thin slice or strip, and this not only can reduce the magnetic shield performance of material, and make energy consumption increase, cost increase, cost performance reduce in-convenience in use.
Summary of the invention
It is an object of the invention to be provided a kind of screen layer for low-frequency transformer.
For achieving the above object, the present invention implements according to following technical scheme:
A kind of screen layer for low-frequency transformer, a screening can also it is provided with outside transformer, screening can is made up of aluminium matter or aluminum alloy material, curtain coating is all scribbled at screening can internal surface and outside surface, the main component of curtain coating is ferromagnetic oxide powder, also adding titanate coupling agent, select non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate as the surface-modifying agent of iron powder, thinner and thermoplastic acrylic resin as tackiness agent, the micro-powder coating being made into is coated on the inside and outside surface of screening can.
As present invention further optimization scheme, calculate in mass ratio, ferromagnetic oxide powder in the micro-powder coating made: titanate coupling agent: properties-correcting agent: thinner: tackiness agent=3:1:0.5:1:1.5.
As present invention further optimization scheme, the mass ratio of described selection non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate is 1:1-3.
Compared with prior art; the present invention is provided with shielding protection shell on low-frequency transformer; in order to save cost; cheap material can be adopted to make screening can; and surface is coated with the curtain coating that some magneticsubstances are made inside and outside its shell; it is possible not only to play a protective role, also a saving cost.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, and illustrative examples and explanation in this invention are used for explaining the present invention, but not as a limitation of the invention.
Embodiment 1
A kind of screen layer for low-frequency transformer, a screening can also it is provided with outside transformer, screening can is made up of aluminium matter or aluminum alloy material, curtain coating is all scribbled at screening can internal surface and outside surface, the main component of curtain coating is ferromagnetic oxide powder 300g, also add titanate coupling agent 100g, select non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate as the surface-modifying agent 50g altogether of iron powder, thinner 100g and thermoplastic acrylic resin are as tackiness agent 150g, the micro-powder coating being made into is coated on the inside and outside surface of screening can, the quality of non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate is wherein selected to be respectively 20g and 30g.
Embodiment 2
A kind of screen layer for low-frequency transformer, a screening can also it is provided with outside transformer, screening can is made up of aluminium matter or aluminum alloy material, curtain coating is all scribbled at screening can internal surface and outside surface, the main component of curtain coating is ferromagnetic oxide powder 600g, also add titanate coupling agent 200g, select non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate as the surface-modifying agent 100g altogether of iron powder, thinner 200g and thermoplastic acrylic resin are as tackiness agent 300g, the micro-powder coating being made into is coated on the inside and outside surface of screening can, the quality of non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate is wherein selected to be respectively 30g and 70g.
The present invention is applied in the shielding protection of low-frequency transformer; low-frequency transformer is provided with shielding protection shell; in order to save cost; aluminium matter or aluminum alloy material is adopted to make screening can; and surface is coated with the curtain coating that some magneticsubstances are made inside and outside its shell; it is possible not only to play a protective role, also a saving the cost of about 50%.
The technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical scheme of the present invention, all falls within protection scope of the present invention.
Claims (3)
1. the screen layer for low-frequency transformer, it is characterized in that, a screening can also it is provided with outside transformer, screening can is made up of aluminium matter or aluminum alloy material, curtain coating is all scribbled at screening can internal surface and outside surface, the main component of curtain coating is ferromagnetic oxide powder, also add titanate coupling agent, select non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate as the surface-modifying agent of iron powder, thinner and thermoplastic acrylic resin are as tackiness agent, the micro-powder coating being made into is coated on the inside and outside surface of screening can.
2. the screen layer for low-frequency transformer according to claim 1, it is characterised in that: calculate in mass ratio, ferromagnetic oxide powder in the micro-powder coating made: titanate coupling agent: properties-correcting agent: thinner: tackiness agent=3:1:0.5:1:1.5.
3. the screen layer for low-frequency transformer according to claim 1, it is characterised in that: the mass ratio of described selection non-ionic type polymer dextran and anionic polymeric hydantoin sodiun alginate is 1:1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567891.9A CN105655091A (en) | 2014-10-23 | 2014-10-23 | Low frequency transformer shielding layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567891.9A CN105655091A (en) | 2014-10-23 | 2014-10-23 | Low frequency transformer shielding layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105655091A true CN105655091A (en) | 2016-06-08 |
Family
ID=56482288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410567891.9A Pending CN105655091A (en) | 2014-10-23 | 2014-10-23 | Low frequency transformer shielding layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105655091A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883647A (en) * | 2017-03-24 | 2017-06-23 | 合肥羿振电力设备有限公司 | A kind of environment friendly insulating coating for transformer and preparation method thereof |
| 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 |
| CN111740585A (en) * | 2020-06-04 | 2020-10-02 | 许继集团有限公司 | Electromagnetic interference preventing flexible direct current converter valve secondary board card and manufacturing method |
| WO2021128452A1 (en) * | 2019-12-25 | 2021-07-01 | 江苏源通电气有限公司 | Anti-aging epoxy resin box-type transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707124A (en) * | 2009-11-27 | 2010-05-12 | 蔡建林 | Shielding coating of low-frequency transformer |
| CN101707116A (en) * | 2009-11-27 | 2010-05-12 | 蔡建林 | High-efficiency shielding housing of low-frequency transformer |
| CN101794659A (en) * | 2009-11-27 | 2010-08-04 | 蔡建林 | Shielding shell of low frequency transformer |
| CN103087574A (en) * | 2011-10-27 | 2013-05-08 | 比亚迪股份有限公司 | Electromagnetic shielding filling material and preparation method thereof, and electromagnetic shielding paint |
| JP5877804B2 (en) * | 2012-02-28 | 2016-03-08 | ニチレイマグネット株式会社 | Magnetic layer of building member and method for manufacturing magnetic layer of building member |
-
2014
- 2014-10-23 CN CN201410567891.9A patent/CN105655091A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707124A (en) * | 2009-11-27 | 2010-05-12 | 蔡建林 | Shielding coating of low-frequency transformer |
| CN101707116A (en) * | 2009-11-27 | 2010-05-12 | 蔡建林 | High-efficiency shielding housing of low-frequency transformer |
| CN101794659A (en) * | 2009-11-27 | 2010-08-04 | 蔡建林 | Shielding shell of low frequency transformer |
| CN103087574A (en) * | 2011-10-27 | 2013-05-08 | 比亚迪股份有限公司 | Electromagnetic shielding filling material and preparation method thereof, and electromagnetic shielding paint |
| JP5877804B2 (en) * | 2012-02-28 | 2016-03-08 | ニチレイマグネット株式会社 | Magnetic layer of building member and method for manufacturing magnetic layer of building member |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883647A (en) * | 2017-03-24 | 2017-06-23 | 合肥羿振电力设备有限公司 | A kind of environment friendly insulating coating for transformer and preparation method thereof |
| 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 |
| WO2021128452A1 (en) * | 2019-12-25 | 2021-07-01 | 江苏源通电气有限公司 | Anti-aging epoxy resin box-type transformer |
| CN111740585A (en) * | 2020-06-04 | 2020-10-02 | 许继集团有限公司 | Electromagnetic interference preventing flexible direct current converter valve secondary board card and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105655091A (en) | Low frequency transformer shielding layer | |
| TW200641077A (en) | Paint composition excellent in electromagnetic wave absorbency and conductivity, and coated metal plate coated therewith | |
| CN101707124A (en) | Shielding coating of low-frequency transformer | |
| CN204314346U (en) | Electromagnetic screen in radio frequency testing | |
| CN101707116A (en) | High-efficiency shielding housing of low-frequency transformer | |
| CN201947597U (en) | Shielding device | |
| CN205625229U (en) | Antimagnetic cabinet body structure of antimagnetic cabinet | |
| CN101794659A (en) | Shielding shell of low frequency transformer | |
| CN103773233A (en) | Shielding coating for low-frequency transformer | |
| CN204103439U (en) | A kind of communication cable-end radome | |
| CN102843901A (en) | High-screen-effect clamp screen shielding window | |
| CN202850245U (en) | Anti-electromagnetic-radiation fireproofing insulation board | |
| CN206658375U (en) | A kind of PLC rack body with electro-magnetic screen function | |
| CN105742988B (en) | Box for box-type transformer substation | |
| CN202749050U (en) | LED (Light Emitting Diode) display screen with improvable EMC (Electro Magnetic Compatibility) | |
| CN101794660A (en) | Preparation method of shielding shell of low frequency transformer | |
| CN106752490A (en) | A kind of broadband electromagnetical shielding material | |
| CN205830243U (en) | Heat sinking shielding box | |
| CN207453161U (en) | A kind of shielding house | |
| CN101849740A (en) | Wooden electromagnetic shielding computer desk | |
| CN205427785U (en) | Low -radiation mouse | |
| CN202494965U (en) | All-in-one computer capable of preventing information leakage | |
| CN210725879U (en) | Novel electromagnetic shielding glass | |
| CN216069033U (en) | Electromagnetic shielding bulletproof glass | |
| CN203325468U (en) | MP3 (Moving Picture Experts Group Audio Layer-3) player |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
|
| RJ01 | Rejection of invention patent application after publication |