DE202018101054U1 - Thermisch hochleitende Hybridstruktur - Google Patents
Thermisch hochleitende Hybridstruktur Download PDFInfo
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- DE202018101054U1 DE202018101054U1 DE202018101054.9U DE202018101054U DE202018101054U1 DE 202018101054 U1 DE202018101054 U1 DE 202018101054U1 DE 202018101054 U DE202018101054 U DE 202018101054U DE 202018101054 U1 DE202018101054 U1 DE 202018101054U1
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- fiber layer
- hybrid structure
- carbon fiber
- metallic cover
- epoxy resin
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/092—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising epoxy resins
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- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
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- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
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- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Hybridstruktur bestehend aus ungleichen Materialien dadurch gekennzeichnet, dass eine thermisch hochleitende Karbonfaserschicht (4) zwischen zwei metallischen Deckblechen (3) eingelagert ist.
Description
- Hybridstrukturen bestehen aus einem Verbund ungleicher Materialien, um ihre Vorteile zu kombinieren. In den meisten Fällen werden Metalle und Kunststoffe kombiniert, um höhere mechanische Eigenschaften bei gleichzeitiger Gewichtsreduktion zu erhalten. In allen bisher bekannten Entwicklungen ist das Ziel, Hybridstrukturen mit geringerem Gewicht und höherer Festigkeit als die Ausgangsmaterialien zu erhalten.
- Der im Schutzanspruch
1 angegebenen Erfindung liegt das Problem zugrunde, eine Hybridstruktur zu schaffen, die neben höhere Festigkeit und Gewichtsreduktion auch eine sehr hohe thermische Leitfähigkeit besitzt. - Dieses Problem wird mit dem im Schutzanspruch
1 aufgeführten Merkmalen gelöst. - Die vorgeschlagene Hybridstruktur besteht aus einem Gelege oder Flies (
4 ) aus thermisch hochleitenden Karbonfasern, das zwischen zwei metallischen Blechen (3 ) gelegt wird. Das Fasergelege (4 ) ist in einer Matrix, z.B. Epoxidharz, eingelagert und mit den metallischen Blechen (3 ) verbunden. Es sind hochleitende Karbonfasern bekannt, die eine Wärmeleitfähigkeit von bis zu 800 W/mK haben. Für ein entsprechendes mit Epoxidharz getränktes Flies oder Gelege wurden bereits Wärmeleitfähigkeiten von bis zu 500 W/mK nachgewiesen. Diese Werte sind mehr als dreimal höher, als bei hochfesten Aluminiumlegierungen. Während die Faserschicht (4 ) die hohe thermische Leitfähigkeit bewirkt, übernehmen die beiden Deckbleche (3 ) die mechanische Festigkeit des Verbundes. - Die Haftung der Faserschicht an die metallischen Deckschichten kann durch Kleben oder dem sogenannten „co-curing“ erfolgen. Bei letzterer Methode wird die Faserschicht mit noch nicht ausgehärteter Epoxidharzmatrix zwischen den beiden metallischen Deckschichten verpresst und in diesem Zustand ausgehärtet. Eine weitere Verstärkung des Verbundes lässt sich durch das Ausarbeiten von Haken auf der Faserschicht zugewandten Seite der metallischen Bleche erreichen, die sich in der Faserschicht verhaken. Diese Haken verbessern außerdem die thermische Leitfähigkeit senkrecht zur Materialebene.
- Die vorgeschlagene Hybridstruktur kann sowohl eine flächige Gestalt, als auch beliebigen dreidimensionale Ausführungsformen haben.
- Eine vorteilhafte Ausgestaltung der Erfindung ist in
1 dargestellt, bei der zwei flächige Hybridstrukturen (1 ) als Deckbleche in einem Honigwaben-Sandwich (2 ) dienen. Die Hybridstruktur-Deckbleche (1 ) bestehen aus der Karbonfaserschicht (4 ) und den beiden metallischen Blechen (3 ), die hier mit eingearbeiteten Haken dargestellt sind. Verlustwärme von auf dem Sandwich montierten Geräten wird somit sehr gut in allen Richtungen der Sandwichebene abgeleitet.
Claims (9)
- Hybridstruktur bestehend aus ungleichen Materialien dadurch gekennzeichnet, dass eine thermisch hochleitende Karbonfaserschicht (4) zwischen zwei metallischen Deckblechen (3) eingelagert ist.
- Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die Karbonfaserschicht (4) aus mehreren Lagen unidirektionalen und in verschiedenen Winkeln zueinander verlaufenden Fasern besteht, so dass für die Wärmeleitung eine quasi-isotrope Faserschicht entsteht. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die Karbonfaserschicht (4) aus einem Vlies mit zufällig ausgerichteten Fasern besteht. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die Karbonfaserschicht (4) aus gewebtem Fasermaterial besteht. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die Karbonfaserschicht (4) in aushärtbaren Epoxidharz getränkt ist. - Hybridstruktur nach
Anspruch 5 , dadurch gekennzeichnet, dass das aushärtbare Epoxidharz Zusatzstoffe zur Erhöhung der thermischen Leitfähigkeit enthält. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die Faserschicht (4) und die metallischen Deckbleche (3) durch Klebung miteinander verbunden sind. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass Faserschicht (4) und die metallischen Deckbleche (3) durch „co-curing“, d.h. während des Aushärtvorgangs des Epoxidharzes miteinander verbunden werden. - Hybridstruktur nach
Anspruch 1 , dadurch gekennzeichnet, dass die metallischen Deckschichten (3) in den der Faserschicht (4) zugewandten Seiten Haken besitzen, die sich in der Faserschicht verankern.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018101054.9U DE202018101054U1 (de) | 2018-02-27 | 2018-02-27 | Thermisch hochleitende Hybridstruktur |
DE102019102733.0A DE102019102733B4 (de) | 2018-02-27 | 2019-02-04 | Hybridstruktur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202018101054.9U DE202018101054U1 (de) | 2018-02-27 | 2018-02-27 | Thermisch hochleitende Hybridstruktur |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202018101054U1 true DE202018101054U1 (de) | 2018-05-03 |
Family
ID=62201789
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202018101054.9U Expired - Lifetime DE202018101054U1 (de) | 2018-02-27 | 2018-02-27 | Thermisch hochleitende Hybridstruktur |
DE102019102733.0A Active DE102019102733B4 (de) | 2018-02-27 | 2019-02-04 | Hybridstruktur |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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DE102019102733.0A Active DE102019102733B4 (de) | 2018-02-27 | 2019-02-04 | Hybridstruktur |
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DE (2) | DE202018101054U1 (de) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102015112770A1 (de) * | 2015-08-04 | 2017-02-09 | Thyssenkrupp Ag | Fügen mit Fügehilfselementen |
-
2018
- 2018-02-27 DE DE202018101054.9U patent/DE202018101054U1/de not_active Expired - Lifetime
-
2019
- 2019-02-04 DE DE102019102733.0A patent/DE102019102733B4/de active Active
Also Published As
Publication number | Publication date |
---|---|
DE102019102733B4 (de) | 2020-12-17 |
DE102019102733A1 (de) | 2019-08-29 |
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