CN203554863U - Wave absorption cooling fin based on carbon material - Google Patents
Wave absorption cooling fin based on carbon material Download PDFInfo
- Publication number
- CN203554863U CN203554863U CN201320553805.XU CN201320553805U CN203554863U CN 203554863 U CN203554863 U CN 203554863U CN 201320553805 U CN201320553805 U CN 201320553805U CN 203554863 U CN203554863 U CN 203554863U
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- Prior art keywords
- layer
- microns
- wave absorption
- carbon
- cooling fin
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- Expired - Fee Related
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- 238000010521 absorption reaction Methods 0.000 title abstract description 8
- 239000003575 carbonaceous material Substances 0.000 title abstract description 3
- 238000001816 cooling Methods 0.000 title abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 7
- 239000004917 carbon fiber Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 229920002799 BoPET Polymers 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000011358 absorbing material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a wave absorption cooling fin based on a carbon material, which belongs to the technical field of the electromagnetic absorption and heat conduction and dissipation. The wave absorption cooling fin is composed of a radiating layer, a reflecting layer, an absorbing layer and a release layer, wherein the radiating layer is a metal foil, the reflecting layer is an artificial high-orientation graphite film, and the absorbing layer is made of carbon fibers or carbon helical felt cloth. The overall thickness of the wave absorption cooling fin is within 300 microns, and the wave absorption cooling fin is excellent in wave absorption and radiation function, excellent in workability and is applicable to integrated application of electromagnetic shielding and heat dissipation under a variety of working conditions.
Description
Technical field
The utility model belongs to technical field of electronic devices, relates in particular to a kind of Wave-absorbing heat-radiating patch of electronic device.
Background technology
In recent years, along with the development of the Internet, the multimedia terminal equipments such as mobile phone, panel computer become important role in people's life gradually.There are some researches show, people's every day and mobile phone get along for up to more than 60%.When these electronic products have enriched people's life, also there is certain hidden danger.Electronic product work time can discharge electromagnetic wave, can other devices around be produced and be disturbed, such as airplane flight because Electromagnetic Interference affects, take off, mobile phone disturbs hospital's electronic instrument for diagnosing and curing diseases device etc.In addition, electromagnetic long-term radiation also can work the mischief to human health.
Absorbing material refers to a class material that can effectively absorb incident electromagnetic wave and make its decay, and it changes into heat energy or other form of energy to reach the object of inhaling ripple by different loss mechanism by incident electromagnetic wave.Be applied to absorbing material in mobile phone, panel computer except reducing electromagnetic radiation, preventing electromagnetic interference function, also require light, thin, integrated, microminiaturized to adapt to electronic product.Adopt the suction wave dispersion backing of patch design, have concurrently and inhale ripple and heat sinking function, be relatively applicable to being applied in this electronic product.
Absorbing material can be divided into two kinds of magnetic loss and electrical losses according to its loss mechanism, and the proportion of carbonyl iron, ferrite, magnetic metal micro mist equimagnetic consumable material is larger, is not suitable for the lightening of device.And material with carbon element, as special carbon fiber, carbon black and carbon nano-tube etc. belong to electrical loss material, its density is little, good electrical property, and mechanical property is excellent, relies on the feature of " thin, light, wide, strong " to be applied to weaponry coating.Therefore, based on material with carbon element absorbing material, be suitable for the suction ripple design of frivolous electronics most.
In addition, when inhaling wave plate, absorb after a large amount of electromagnetic waves, electromagnetic energy changes heat energy into the most at last, and this can aggravate the heat radiation pressure of electronic component undoubtedly, and the application of material with carbon element has in recent years improved the heat-sinking capability of product greatly, wherein high conductive graphite film has been widely used in each electronic product.Therefore, design the advantage that a kind of suction ripple based on material with carbon element and heat-radiating integrated paster can be given full play to contemporary carbon material, improve the operating state of electronic product, purifying electric magnetic environment.
Summary of the invention
The utility model provides a kind of suction wave dispersion backing based on material with carbon element, has light, thin, wide, strong feature, is applied to suction ripple and the field of radiating of electronic device.
The utility model provides a kind of suction wave dispersion backing based on material with carbon element, and it comprises heat dissipating layer, reflection/heat-conducting layer, inhales ripple layer, release layer.Heat dissipating layer, reflection/heat-conducting layer and inhale between ripple layer and all adopt silica gel bonding, inhale and between ripple layer and release layer, adopt that esters of acrylic acid is gluing to be connect.
Inhaling wave dispersion backing integral thickness can be lower than 200 micron, wherein: heat dissipating layer is made by copper or aluminum metal forming, and thickness is not less than 35 microns; Reflection/heat-conducting layer is the high oriented crystallization graphite film after the warm graphite of height by certain kinds macromolecular material, and thickness is not less than 30 microns; Inhaling ripple layer is carbon fiber, carbon spiral felt-cloth, and thickness is not less than 80 microns; Release layer is PET material, and thickness is not less than 15 microns.
The utility model advantage is: adopt the graphite film of high oriented crystallization as heat conduction and electromagnetic reflecting material, there is high thermal conductivity and reflection of electromagnetic wave performance, carbon fiber or carbon spiral felt-cloth are as absorbing material, electromagnetic absorption frequency is wide, the whole wave dispersion hot property of inhaling is excellent, take into account lightening design simultaneously, be specially adapted to the ELECTROMAGNETIC RADIATION SHIELDING of frivolous electronic product.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of suction wave dispersion backing based on material with carbon element of the utility model.
Embodiment
In the utility model, utilize artificial high oriented graphite film as reflection of electromagnetic wave layer and heat-conducting layer, carbon fiber or carbon spiral be as electromagnetic absorbed layer, and two skins are covered with respectively heat radiation and the machining property that metal foil layer and release layer improve film, have realized and have inhaled the lightening of ripple and heat radiation.Below in conjunction with specific embodiment, be described in further detail.
Specific embodiment 1: at the aluminium foil surface coated with thermally conductive silica gel of 25 microns, roll 2 times load 25MPa, the combination of rete consolidation after itself and high oriented graphite film are covered to (25 microns) film; The felt-cloth being made into by carbon coil material (80 microns) side and release layer (15 microns) is laminating with acrylic compounds glue; The high oriented graphite film of two-layer composite membrane and carbon spiral felt-cloth one side is applied after silica gel through roller press to load 25MPa.Compact layer experience is rolled for 3 times, after guaranteeing to combine closely between each layer, obtain inhaling wave dispersion backing.
Specific embodiment 2: adopt the Copper Foil of 30 microns as heat dissipating layer, the expandable graphite sheet of 25 microns is as reflector, and carbon-fiber cloth (100 microns) is as absorbed layer, and release layer is pet layer, take the preparation technology identical with embodiment 1, can obtain and inhale wave dispersion backing thickness at 250 ± 10 microns.Absorbing property adopts the arc method of testing of reflectivity to detect, and minimum reflectance is lower than-15dB.
Claims (3)
1. the suction wave dispersion backing based on material with carbon element, is characterized in that: heat dissipating layer, reflection/heat-conducting layer, absorbed layer and release layer, consist of; Wherein heat dissipating layer is metal forming, and reflector adopts high oriented graphite rete, and absorbed layer is carbon fiber or carbon spiral felt-cloth, and release layer is PET film.
2. a kind of suction wave dispersion backing based on material with carbon element according to claim 1, is characterized in that all adopting silica gel bonding between heat dissipating layer, reflector and absorbed layer, adopts that acrylic compounds is gluing to be connect between release layer and absorbed layer.
3. a kind of suction wave dispersion backing based on material with carbon element according to claim 1, it is characterized in that the integral thickness of inhaling wave dispersion backing can be controlled in 200 microns, wherein heat dissipating layer thickness is not less than 35 microns, reflector thickness is not less than 30 microns, absorber thickness is not less than 80 microns, and release layer thickness is not less than 15 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553805.XU CN203554863U (en) | 2013-09-08 | 2013-09-08 | Wave absorption cooling fin based on carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320553805.XU CN203554863U (en) | 2013-09-08 | 2013-09-08 | Wave absorption cooling fin based on carbon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203554863U true CN203554863U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320553805.XU Expired - Fee Related CN203554863U (en) | 2013-09-08 | 2013-09-08 | Wave absorption cooling fin based on carbon material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203554863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110383964A (en) * | 2017-03-03 | 2019-10-25 | 日东电工株式会社 | Electromagnetic wave absorb and formed products with electromagnetic wave absorb |
| CN110876254A (en) * | 2018-08-30 | 2020-03-10 | 神讯电脑(昆山)有限公司 | Wave-absorbing heat dissipation structure |
-
2013
- 2013-09-08 CN CN201320553805.XU patent/CN203554863U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110383964A (en) * | 2017-03-03 | 2019-10-25 | 日东电工株式会社 | Electromagnetic wave absorb and formed products with electromagnetic wave absorb |
| CN110383964B (en) * | 2017-03-03 | 2021-02-19 | 日东电工株式会社 | Electromagnetic wave absorber and molded article with electromagnetic wave absorber |
| CN110876254A (en) * | 2018-08-30 | 2020-03-10 | 神讯电脑(昆山)有限公司 | Wave-absorbing heat dissipation structure |
| CN110876254B (en) * | 2018-08-30 | 2021-04-13 | 神讯电脑(昆山)有限公司 | Wave-absorbing heat dissipation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |