CN203876307U - High-heat-dissipation wave-absorbing composite film - Google Patents
High-heat-dissipation wave-absorbing composite film Download PDFInfo
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- CN203876307U CN203876307U CN201420169975.2U CN201420169975U CN203876307U CN 203876307 U CN203876307 U CN 203876307U CN 201420169975 U CN201420169975 U CN 201420169975U CN 203876307 U CN203876307 U CN 203876307U
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- rete
- heat radiation
- ripple
- release layer
- protective film
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Abstract
The utility model provides a high-heat-dissipation wave-absorbing composite film comprising a first release layer or a first plastic protective film, a heat dissipation film layer, a wave absorbing film layer and a second release layer or a second plastic protective film which are sequentially compounded, wherein the wave absorbing film layer directly coats the surface of the heat dissipation film layer and is cured; the heat dissipation film layer is compounded with the first release layer or the first plastic protective film by virtue of a first double-sided adhesive layer or a first single-sided adhesive layer; the second release layer or the second plastic protective film is compounded with the wave absorbing film layer by virtue of a second double-sided adhesive layer or a second single-sided adhesive layer. By adopting the high-heat-dissipation wave-absorbing composite film provided by the utility model, the problems of heat conduction and electromagnetic wave shielding of electronic equipment can be solved.
Description
Technical field
The utility model relates to a kind of high heat radiation and inhales ripple composite membrane.
Background technology
Along with the develop rapidly of electronic technology, electronic product is just rapidly to future developments such as intelligent, integrated, lightening, multifunctions.Electronic product universal that these have various personalized amusement functions, has enriched people's material life needs to a great extent; But meanwhile, some problems, especially heat dissipation problem and electromagnetic interference problem are also inevitably brought.
In order to improve the function of intelligent electronic device, the use more and more higher and double-core and four cores of the running frequency of chip is more and more general, but what bring thus is same powerful caloric value, and high temperature can reduce the usefulness of chip deal with data significantly.On ultra thin handset and computer, due to can not provided with fan and fin etc. establish device, the problem of golf calorific value is more serious, therefore uses heat dissipation film to become gradually a kind of trend.The normally used a kind of heat dissipation film of Copper Foil (thermal conductivity 400W/mk), and graphite film (JP1985181129A) is due to its higher thermal conductivity (800-2000 W/mk), becomes gradually the focus in Heat Conduction Material.But, although graphite film has higher thermal conductivity, because its thin thickness (10-50um) density low (<2g/m3) causes thermal capacity low, when equipment heating amount is larger, be not easy thermal conductance to go out, affect radiating effect.
In addition, smart machine, in the time of work, is understood constantly emitting electromagnetic wave outward, and peak power can reach 2w, and this impact on surrounding environment is very large.Therefore,, for avoiding its interference to surrounding environment in the time working, must limit some unnecessary radiation.In addition,, due to the increase of speed and frequency and the circuit board integrated level of transfer of data, the environment that improves electromagnetic interference has been proposed to more and more higher requirement with the interference that reduces adjacent component.Traditional shielding material (metal) shields undesirable electromagnetic wave by reflection electromagnetic wave, but reflection can increase the weight of the electromagnetic interference between undesirable electromagnetic wave emission source and other components.Therefore, use can absorb and the absorbing material of loss magnetic energy can be avoided the problem of this respect, magnetic material and blend rubber is formed to suction ripple rete as what propose in patent EP0667643B1.
In sum, have heat radiation and the material of electro-magnetic screen function is will have a wide range of applications in intelligent electronic device simultaneously.In patent of invention CN101899289A, heat radiation particle and suction ripple particle and adhesive blend are made into Wave-absorbing heat dissipation material by inventor, but because the filling proportion of two kinds of particles all can not be too high, cause thus radiating effect and wave-absorbing effect all not obvious.In its another section of patent CN101888769A, inhale ripple net and be placed in two-layer silica gel heat dissipating layer, but because the thermal conductivity factor of silica gel heat dissipating layer is generally less than 5w/mk, its integral heat sink performance is subject to great restriction.In order to improve heat-conducting effect, in the patent having, graphite heat conducting material has directly been used as heat-conducting layer, inhaling ripple layer is to adopt metal (CN202603134U) or semiconductor (CN203181498U) or ferrite (CN202799566U, CN102555314A, CN202565640U), directly fit together by adhesive tape and heat-conducting layer.Although by adopting graphite heat conducting material, the heat conductivility of entirety is improved, but can not be transmitted on graphite film timely because the thermal resistance of adhesive tape has caused the heat that absorbing material changes into electromagnetic wave, and the heat that device is transmitted on graphite film can not be stored on the suction ripple film of high heat capacity in time.
Summary of the invention
The purpose of this utility model is to provide a kind of high heat radiation to inhale ripple composite membrane, can solve heat conduction and the electromagnetic wave shielding problem of electronic equipment.
For addressing the above problem, the utility model provides a kind of high heat radiation to inhale ripple composite membrane, and comprise the first compound successively release layer or the first plastic protective film for plastics, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is compound with described the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line, and it is compound that described the second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, described heat radiation rete is synthetic graphite film, and the thickness of described synthetic graphite film is 10um-50um, and thermal conductivity is 800-2000W/mk.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, the wave absorbing agent that consists of 60-90% of described suction ripple rete and the organic binder bond of 10-40%, the thickness of described suction ripple rete is 20um-1mm, is 80-200 at the magnetic conductivity of 1MHz frequency.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, the material of described wave absorbing agent is magnetic alloy powder, comprises a kind of or any combination in nickel zinc-iron alloy, ambrose alloy ferroalloy, zinc chrome ferroalloy, MnZn ferroalloy, niobium zinc-iron alloy, sendust, nichrome, niobium zinc-iron alloy, iron-nickel alloy, ferroaluminium, ferrocobalt, ferrochrome, iron silicon nickel alloy, iron, silicon, aluminum and nickel alloy, magnesium manganeisen, cobalt-nickel alloy, lithium manganese alloy and lithium cadmium ferroalloy.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, described organic binder bond is macromolecular material, comprise any in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin, or appoint several polymer in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, the thickness of the first release layer and the second release layer is 0.05mm, and material is the pet film that contact-making surface scribbles silicone oil.
Further, inhale in ripple composite membrane in above-mentioned high heat radiation, the material of the first layers of two-sided and the second layers of two-sided is the agent of acrylic acid gluing.
Compared with prior art, the utility model comprises: the first compound release layer or the first plastic protective film for plastics successively, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics, wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies, described heat radiation rete is compound by the first layers of two-sided or the first one side glue-line and described the first release layer or the first plastic protective film for plastics, it is compound that described the second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete, heat conduction and the electromagnetic wave shielding problem of electronic equipment are solved.
Brief description of the drawings
Fig. 1 is the structure chart that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment mono-;
Fig. 2 is the structure chart that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment bis-;
Fig. 3 is the structure chart that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment tri-;
Fig. 4 is the structure chart that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment tetra-;
Fig. 5 is the structure chart of the utility model one comparative example;
Fig. 6 is the formation schematic diagram that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment mono-;
Fig. 7 is the shield effectiveness figure that ripple composite membrane is inhaled in the height heat radiation of the utility model embodiment mono-;
Fig. 8 is the shield effectiveness figure of the utility model embodiment mono-comparative example.
Detailed description of the invention
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model provides the high heat radiation of one to inhale ripple composite membrane, comprising: the first compound release layer or the first plastic protective film for plastics, heat radiation rete, suction ripple rete and the second release layer or the second plastic protective film for plastics successively,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is compound with described the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line, and described the second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete and compound.Concrete; when in application; by the first release layer or the first plastic protective film for plastics and the second release layer or the second plastic protective film for plastics is peeled off and composite membrane is pasted to the electronical elements surface at needs heat radiations and electromagnetic shielding, thereby reach reduction device temperature, prevent the effect of electromagnetic interference.
Preferably, described heat radiation rete is synthetic graphite film, and the thickness of described synthetic graphite film is 10um-50um, and thermal conductivity is 800-2000W/mk.
Preferably, the wave absorbing agent that consists of 60-90% of described suction ripple rete and the organic binder bond of 10-40%, the thickness of described suction ripple rete is 20um-1mm, is 80-200 at the magnetic conductivity of 1MHz frequency.Concrete, synthetic graphite film, thermal conductivity is up to 800-2000w/mk, be the mixture of soft-magnetic alloy powder and organic binder bond and inhale ripple rete, inhale ripple rete and be not directly coated in synthetic graphite film surface by any adhesive tape, thereby effectively reduce graphite film and inhale the thermal resistance between ripple film, in the situation that there is no adhesive tape bonding, owing to inhaling the very high alloy loading of ripple film, and graphite film itself has very high conductance, combining closely of graphite film and suction ripple film formed the one of conduction, consequently there is higher shield effectiveness than the existing graphite film boning by adhesive tape and suction ripple film.
Preferably, the material of described wave absorbing agent is magnetic alloy powder, comprises a kind of or any combination in nickel zinc-iron alloy, ambrose alloy ferroalloy, zinc chrome ferroalloy, MnZn ferroalloy, niobium zinc-iron alloy, sendust, nichrome, niobium zinc-iron alloy, iron-nickel alloy, ferroaluminium, ferrocobalt, ferrochrome, iron silicon nickel alloy, iron, silicon, aluminum and nickel alloy, magnesium manganeisen, cobalt-nickel alloy, lithium manganese alloy and lithium cadmium ferroalloy.
Preferably, described organic binder bond is macromolecular material, comprise any in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin, or appoint several polymer in phenolic resins, Lauxite, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silica gel resinoid, polyurethane and rubber resin.
Embodiment 1
As shown in figs. 1 and 6, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first release layer 11, the first layers of two-sided 12 from top to bottom, and heat radiation rete 13 is inhaled ripple rete 14, the second layers of two-sided 15, and the second release layer 16.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies, described heat radiation rete 13 is compound with described the first release layer by the first layers of two-sided 12, described the second release layer 16 is compound with described suction ripple rete 14 by the second layers of two-sided 15, the thickness of the first release layer 11 and the second release layer 16 is 0.05mm, material is the PET film (PETG) that contact-making surface scribbles silicone oil, double faced adhesive tape is the agent of acrylic acid gluing, heat radiation rete is synthetic graphite film, its thickness is 0.01mm, and thermal conductivity is 1900W/mk.Inhale ripple membrane material and be the Fe-Ni Alloy Powder that contains 80% weight ratio and the epoxy resin adhesive of 20% weight ratio, thickness is 0.05mm, and magnetic conductivity is 80.
Embodiment 2
As shown in Figure 2, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first plastic protective film for plastics 17, the first layers of two-sided 12 from top to bottom, and heat radiation rete 13 is inhaled ripple rete 14, the second layers of two-sided 15, and the second release layer 16.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete 13 is compound 17 by the first layers of two-sided 12 and described the first plastic protective film for plastics, and described the second release layer 16 is compound with described suction ripple rete 14 by the second layers of two-sided 15.
Embodiment 3
As shown in Figure 3, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first release layer 11, the first layers of two-sided 12 from top to bottom, and heat radiation rete 13 is inhaled ripple rete 14, the second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies; described heat radiation rete 13 is compound with described the first release layer by the first layers of two-sided 12, and described the second plastic protective film for plastics 18 is compound with described suction ripple rete 14 by the second layers of two-sided 15.
Embodiment 4
As shown in Figure 4, the structure that ripple composite membrane is inhaled in high heat radiation comprises the first plastic protective film for plastics 17, the first layers of two-sided 12 from top to bottom, and heat radiation rete 13 is inhaled ripple rete 14, the second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, described suction ripple rete 14 is directly coated in the surface of described heat radiation rete 13 and solidifies; described heat radiation rete 13 is compound with described the first plastic protective film for plastics 17 by the first layers of two-sided 12, and described the second plastic protective film for plastics 18 is compound with described suction ripple rete 14 by the second layers of two-sided 15.
Comparative example 1
As shown in Figure 5, a kind of existing its structure of suction ripple composite membrane comprises the first plastic protective film for plastics 17, the first layers of two-sided 12 from top to bottom, and heat radiation rete 13, the three layers of two-sided 19, inhale ripple rete 14, the second layers of two-sided 15, and the second plastic protective film for plastics 18.Wherein, the material of the first layers of two-sided 12, the second layers of two-sided 15 and the 3rd layers of two-sided 19 is the agent of acrylic acid gluing, and heat radiation rete 13 is synthetic graphite film, and its thickness is 0.01mm, and thermal conductivity is 1900W/mk.The material of inhaling ripple rete 14 is the Fe-Ni Alloy Powder that contains 80% weight ratio and the epoxy resin adhesive of 20% weight ratio, and thickness is 0.05mm, and magnetic conductivity is 80.
Suction ripple composite membrane to embodiment 1 and comparative example 1 carries out respectively shield effectiveness experiment, shield effectiveness (dB) is by Agilent E5061A vector network tester in accordance with ASTM-D-4935 testing standard, the test of DN1015 shield effectiveness testing arrangement, it the results are shown in to the experimental result of embodiment 1 as shown in Figure 7, and the experimental result of comparative example 1 as shown in Figure 8.From the test result of Fig. 7 and Fig. 8, in the frequency range of 0-1GHz, the electromagnetic shielding effectiveness of embodiment 1 is average 88dB, and in comparative example 1 due in heat radiation graphite linings with inhale between ripple layer and increased the nonconducting double faced adhesive tape of one deck, its electromagnetic shielding effectiveness is average 76dB, than the low 12dB of the shield effectiveness of embodiment 1.
Suction ripple composite membrane to embodiment 1 and comparative example 1 carries out respectively thermal conductivity test experiments, thermal conductivity test is in accordance with ASTM-E-1461 testing standard by the resistance to LFA 447 Determination of conductive coefficients instrument tests of speeding, and the thermal conductivity test result of embodiment 1 and comparative example 1 is as shown in table 1.From test result, the thermal conductivity factor of embodiment 1 is 1076.774 W/mk, and in comparative example 1 due in heat radiation graphite linings with inhale between ripple layer and increased the nonconducting double faced adhesive tape of one deck, its thermal conductivity factor is 989.221W/mk, than low 87.553 W/mk of the thermal conductivity factor of embodiment 1.
Table 1
Above-mentioned shield effectiveness and thermal conductivity test experiments result show, electromagnetic shielding and the radiating effect of remarkable excellence inhaled ripple composite membrane and had with respect to the composite of the existing heat conducting film forming by stickups and suction ripple film in high heat radiation of the present utility model.
The utility model comprises the first compound successively release layer or the first plastic protective film for plastics, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics, wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies, described heat radiation rete is compound by the first layers of two-sided or the first one side glue-line and described the first release layer or the first plastic protective film for plastics, it is compound that described the second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete, heat conduction and the electromagnetic wave shielding problem of electronic equipment are solved.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to including these changes and modification.
Claims (2)
1. a ripple composite membrane is inhaled in high heat radiation, it is characterized in that, and comprise the first compound successively release layer or the first plastic protective film for plastics, heat radiation rete, inhale ripple rete and the second release layer or the second plastic protective film for plastics,
Wherein, described suction ripple rete is directly coated in the surface of described heat radiation rete and solidifies; described heat radiation rete is compound with described the first release layer or the first plastic protective film for plastics by the first layers of two-sided or the first one side glue-line, and it is compound that described the second release layer or the second plastic protective film for plastics pass through the second layers of two-sided or the second one side glue-line and described suction ripple rete.
2. ripple composite membrane is inhaled in the heat radiation of the height as described in claim 1, it is characterized in that, the thickness of the first release layer and the second release layer is 0.05mm, and material is the pet film that contact-making surface scribbles silicone oil.
3. ripple composite membrane is inhaled in the heat radiation of the height as described in claim 1, it is characterized in that, the material of the first layers of two-sided and the second layers of two-sided is the agent of acrylic acid gluing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420169975.2U CN203876307U (en) | 2014-04-10 | 2014-04-10 | High-heat-dissipation wave-absorbing composite film |
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| CN201420169975.2U CN203876307U (en) | 2014-04-10 | 2014-04-10 | High-heat-dissipation wave-absorbing composite film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972709A (en) * | 2014-04-10 | 2015-10-14 | 苏州驭奇材料科技有限公司 | High-heat-dissipation wave-absorbing composite film and manufacturing method thereof |
| CN106221603A (en) * | 2016-09-20 | 2016-12-14 | 东莞市纳利光学材料有限公司 | A kind of noise reduction protecting film and preparation method thereof |
| CN111132531A (en) * | 2018-11-01 | 2020-05-08 | 江苏蓝沛新材料科技有限公司 | Wave-absorbing material and laminating process thereof |
-
2014
- 2014-04-10 CN CN201420169975.2U patent/CN203876307U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972709A (en) * | 2014-04-10 | 2015-10-14 | 苏州驭奇材料科技有限公司 | High-heat-dissipation wave-absorbing composite film and manufacturing method thereof |
| CN104972709B (en) * | 2014-04-10 | 2017-11-17 | 苏州驭奇材料科技有限公司 | Ripple composite membrane and its manufacture method are inhaled in height radiating |
| CN106221603A (en) * | 2016-09-20 | 2016-12-14 | 东莞市纳利光学材料有限公司 | A kind of noise reduction protecting film and preparation method thereof |
| CN111132531A (en) * | 2018-11-01 | 2020-05-08 | 江苏蓝沛新材料科技有限公司 | Wave-absorbing material and laminating process thereof |
| CN111132531B (en) * | 2018-11-01 | 2022-03-04 | 无锡蓝沛新材料科技股份有限公司 | Wave-absorbing material and laminating process thereof |
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