CN109699161A - 一种散热石墨膜 - Google Patents
一种散热石墨膜 Download PDFInfo
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- CN109699161A CN109699161A CN201910095552.8A CN201910095552A CN109699161A CN 109699161 A CN109699161 A CN 109699161A CN 201910095552 A CN201910095552 A CN 201910095552A CN 109699161 A CN109699161 A CN 109699161A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 26
- 239000010439 graphite Substances 0.000 title claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000010297 mechanical methods and process Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 29
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 239000003292 glue Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000002969 artificial stone Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
- H05K7/20445—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
- H05K7/20472—Sheet interfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
本发明公开了一种散热石墨膜,包含至少两层人工石墨膜;相邻的所述人工石墨膜之间通过石墨烯浆料层直接粘接在一起;本发明所述的散热石墨膜利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,由于石墨烯浆料层的热阻更少,相临人工石墨膜之间的散热性也更好;本发明所述的散热石墨膜散热性能更佳。
Description
技术领域
本发明涉及一种散热用石墨膜的改进,特指一种利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,散热性能更佳的散热石墨膜。
背景技术
现有的通信设备中电子元器件在工作时会产生大量的热量,如果该热量不能及时散出,将影响电子元器件的性能及寿命,通常采用人工石墨膜来散热。本行业中,人工石墨膜,也叫合成石墨膜。
随着通信技术的发展,电子元器件的工况越来越复杂,随之工作时产生的热量也越来越多,原来用单层人工石墨膜能解决电子元器件的散热问题,后来需要2层以上的人工石墨膜才能解决散热问题。
现有的2层以上的人工石墨膜,通常采用人工石墨膜一层一层叠加的方式排布,相邻的人工石墨膜层之间采用双面胶或胶水粘牢。如附图1所示,由于胶水或双面胶与人工石墨膜的内部结构完全不同,胶水或双面胶的导热性能差,会相对地阻断热量在相邻的人工石墨膜之间的传导,从而影响散热功能。
目前通常情况下,石墨烯浆料是用来涂覆在人工石墨膜的表面,以增加人工石墨膜的散热功能。
为此我们研发了一种利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,散热性能更佳的散热石墨膜。
发明内容
本发明目的是为了克服现有技术的不足而提供一种利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,散热性能更佳的散热石墨膜。
为达到上述目的,本发明采用的技术方案是:一种散热石墨膜,包含至少两层人工石墨膜;相邻的所述人工石墨膜之间通过石墨烯浆料层直接粘接在一起。
优选的,所述石墨烯浆料层由机械法制造的石墨烯浆料制成。
优选的,所述石墨烯浆料层由氧化法制造的石墨烯浆料制成。
优选的,所述人工石墨膜有3层。
由于上述技术方案的运用,本发明与现有技术相比具有下列优点:
本发明所述的散热石墨膜利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,由于石墨烯浆料层的热阻更少,相临人工石墨膜之间的散热性也更好;本发明所述的散热石墨膜散热性能更佳。
附图说明
下面结合附图对本发明技术方案作进一步说明:
附图1为现有的散热石墨膜的侧视图;
附图2为本发明所述的散热石墨膜的侧视图;
其中:1、人工石墨膜;2、双面胶;11、人工石墨膜;12、石墨烯浆料层。
具体实施方式
下面结合附图及具体实施例对本发明作进一步的详细说明。
附图2为本发明所述的散热石墨膜,包含至少两层人工石墨膜11;相邻的所述人工石墨膜11之间通过石墨烯浆料层12直接粘接在一起。
本实施例中,所述石墨烯浆料层由现有的机械法制造的石墨烯浆料制成。
当然所述石墨烯浆料层也可以由现有的氧化法制造的石墨烯浆料制成。
本实施例中,所述人工石墨膜11有3层。
本发明利用石墨烯浆料的粘接性能代替现有的双面胶;由于石墨烯浆料层的结构与人工石墨膜的更相近,石墨烯浆料层与相应的人工石墨膜之间的散热功能更好。
由于上述技术方案的运用,本发明与现有技术相比具有下列优点:
本发明所述的散热石墨膜利用石墨烯浆料层将至少两层人工石墨膜依次粘合在一起,由于石墨烯浆料层的热阻更少,相临人工石墨膜之间的散热性也更好;本发明所述的散热石墨膜散热性能更佳。
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施,并不能以此限制本发明的保护范围,凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围内。
Claims (4)
1.一种散热石墨膜,包含至少两层人工石墨膜;其特征在于:相邻的所述人工石墨膜之间通过石墨烯浆料层直接粘接在一起。
2.根据权利要求1所述的散热石墨膜,其特征在于:所述石墨烯浆料层由机械法制造的石墨烯浆料制成。
3.根据权利要求1所述的散热石墨膜,其特征在于:所述石墨烯浆料层由氧化法制造的石墨烯浆料制成。
4.根据权利要求1所述的散热石墨膜,其特征在于:所述人工石墨膜有3层。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111674115A (zh) * | 2020-07-09 | 2020-09-18 | 苏州鸿凌达电子科技有限公司 | 一种人工石墨片高取向排列的导热片及其制备方法 |
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TWM458404U (zh) * | 2012-12-22 | 2013-08-01 | Hugetemp Energy Ltd | 導熱片 |
JP2013224258A (ja) * | 2013-06-07 | 2013-10-31 | Kaneka Corp | グラファイト複合フィルムの製造方法 |
CN205705571U (zh) * | 2016-03-23 | 2016-11-23 | 常州烯材碳材料科技有限公司 | 一种石墨烯散热膜 |
CN107502254A (zh) * | 2017-08-14 | 2017-12-22 | 苏州格优碳素新材料有限公司 | 一种导热不干胶、导热膜及其制备方法和应用 |
CN107564874A (zh) * | 2017-08-21 | 2018-01-09 | 硕阳科技股份公司 | 一种柔性散热薄膜及其制作方法和复合柔性散热薄膜 |
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CN208387172U (zh) * | 2018-07-09 | 2019-01-15 | 苏州世诺新材料科技有限公司 | 一种交叉结构高效导热散热复合石墨膜 |
CN209845604U (zh) * | 2019-01-31 | 2019-12-24 | 苏州市达昇电子材料有限公司 | 一种散热石墨膜 |
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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TWM458404U (zh) * | 2012-12-22 | 2013-08-01 | Hugetemp Energy Ltd | 導熱片 |
JP2013224258A (ja) * | 2013-06-07 | 2013-10-31 | Kaneka Corp | グラファイト複合フィルムの製造方法 |
CN205705571U (zh) * | 2016-03-23 | 2016-11-23 | 常州烯材碳材料科技有限公司 | 一种石墨烯散热膜 |
CN207340382U (zh) * | 2017-05-11 | 2018-05-08 | 成都聪源光电科技有限公司 | 一种可产业化的石墨烯散热结构及相应器件 |
CN107502254A (zh) * | 2017-08-14 | 2017-12-22 | 苏州格优碳素新材料有限公司 | 一种导热不干胶、导热膜及其制备方法和应用 |
CN107564874A (zh) * | 2017-08-21 | 2018-01-09 | 硕阳科技股份公司 | 一种柔性散热薄膜及其制作方法和复合柔性散热薄膜 |
CN208387172U (zh) * | 2018-07-09 | 2019-01-15 | 苏州世诺新材料科技有限公司 | 一种交叉结构高效导热散热复合石墨膜 |
CN209845604U (zh) * | 2019-01-31 | 2019-12-24 | 苏州市达昇电子材料有限公司 | 一种散热石墨膜 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111674115A (zh) * | 2020-07-09 | 2020-09-18 | 苏州鸿凌达电子科技有限公司 | 一种人工石墨片高取向排列的导热片及其制备方法 |
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