EP1285213B1 - Mikrostruktur-wärmetauscher und verfahren zu dessen herstellung - Google Patents
Mikrostruktur-wärmetauscher und verfahren zu dessen herstellung Download PDFInfo
- Publication number
- EP1285213B1 EP1285213B1 EP01935996A EP01935996A EP1285213B1 EP 1285213 B1 EP1285213 B1 EP 1285213B1 EP 01935996 A EP01935996 A EP 01935996A EP 01935996 A EP01935996 A EP 01935996A EP 1285213 B1 EP1285213 B1 EP 1285213B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- graphite
- hollow fibre
- fibre structure
- microstructured heat
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
- F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
Definitions
- the invention relates to a microstructure heat exchanger and a method for producing such a microstructure heat exchanger according to the preamble of the independent claims.
- the cooling of electronic components has hitherto been predominantly by solid-state heat conduction through the housing or external Heatsink.
- the payable performance is through the thermal conductivity, the wall thicknesses and the specific Surface of the components used limited. If one fluid-cooled heat exchanger begins to occur at the Cooling electronic components the problem of thermal Coupling of the heat exchanger to this component. moreover are fluid-cooled heat exchangers far more expensive than Heat exchangers based on conventional concepts.
- a cooling element in which one or more cooling coils embedded in a carbon derivative environment such as graphite.
- a carbon derivative environment such as graphite.
- the metallic cooling coils in a pasty carbon mass embedded which is then solidified by strong heating, so that the cooling coils is enclosed by a graphite matrix.
- Object of the present invention is the preparation of a Microstructure heat exchanger, on the one hand a good thermal Coupling to the component to be cooled allows, and on the other hand is cheap to produce, as well as the provision a suitable, simple manufacturing process.
- the microstructure heat exchanger according to the invention and the inventive Method has over the prior art the advantage that it is thus possible in a simple manner a large number of small tubes or hollow fibers within a hollow fiber structure parallel to switch, and so on Due to the resulting large heat exchanger surface a high Transfer or dissipate heat output.
- Next is advantageous that through the use of graphite as a matrix body a particularly good thermal coupling or thermal conductivity the microstructure heat exchanger according to the invention given is.
- the used Hollow fiber structure in a variety of variants or structures produced, and therefore in a particular case in a simpler Adaptable to the particular task.
- the production process according to the invention is characterized Simplicity and versatility in terms of the manufacturable Microstructure heat exchanger off. It is next for both graphite and other elastic or by Presses plastically malleable materials suitable simultaneously have a good thermal conductivity.
- the hollow fiber structure used a particular regular arrangement of metallic Is tubes that are gas permeable or liquid permeable with a common supply line and a common discharge line in connection.
- a matrix body is particularly advantageous is a graphite body pressed together, preferably before graphite foils made of expanded graphite into which the particular metallic hollow fiber structure during pressing has been embedded. It can be advantageous both unstructured, d. H. flat graphite foils are used, as well as graphite foils, which before pressing with a the arrangement of the tubes of the hollow fiber structure corresponding Negative structuring have been provided.
- thermal coupling of a to be cooled Component to the matrix body it is also advantageous if this is formed flat in the form of a plate, and by pressing against the cooling member thermally conductive with this is connected.
- This compression is due to the elasticity or plastic formability of the graphite body used especially simple, and there are also possible bumps balanced on the cooling component, which in addition to an improved thermal coupling leads.
- a thermal Conductive paste for example in the form of a on the flat Graphite body applied conductive layer, are used.
- Figure 1 a metallic hollow fiber structure
- Figure 2a the compression of these Hollow fiber structure with two graphite foils
- Figure 2b the after the compression of Figure 2a obtained matrix body with integrated hollow fiber structure
- Figure 3 shows a microstructure heat exchanger in the form of a plate with an applied Cooling plate.
- the invention is initially based on a metallic hollow fiber structure 10 as described in the application DE 199 10 985.0 in similar form has been described. Insofar should on details dispensed with the manufacturing process.
- FIG. 1 shows first a hollow fiber structure 10 according to FIG the application DE 199 10 985.0 has been produced.
- This has a plurality of mutually parallel metallic tubes 13, the gas-permeable or fluid-continuous with a common supply line 12 and a common discharge line 11 are in communication.
- the tubes 13 and the supply line 12 and the discharge line 11 consist for example of nickel.
- the wall thickness the tubes 13 of the hollow fiber structure 10 according to FIG. 1 is between 100 nm and 50 microns, especially 500 nm to 5 ⁇ m.
- the mean distance of the tubes 13 of the hollow fiber structure 10 according to Figure 1 is usually between 5 microns and 10 mm, in particular between 20 microns and 200 microns.
- microstructure heat exchanger 5 To get from the microstructure of Figure 1 now a microstructure heat exchanger 5, are initially two graphite foils 14 prepared from previously expanded graphite, between which the hollow fiber structure 10 is arranged. This will be explained with the aid of FIG. 2a.
- the hollow fiber structure 10 is further preferably so between placed the graphite foils 14 that the tubes 13th lie between the sheets 14, while the discharge line 11th and the supply line 12 is not covered by the graphite foils 14 becomes.
- the hollow fiber structure is provided 10 first between two lightly pressed graphite foils 14 to arrange expanded graphite, and then these two graphite foils 14 together with the Hollow fiber structure 10 to press.
- this pressing is due to the elasticity and plastic formability the graphite foils 14 no additional binder required.
- the after pressing resulting matrix body 15 in the form of a plate is shown in Figure 2b.
- two flat graphite foils 14 according to FIG. 2a may also be at least one of these two Graphite sheets before pressing with one of the arrangement of Tubes 13 of the hollow fiber structure 10 corresponding negative structuring be provided.
- the negative structuring at least one of the graphite foils 14 may be, for example by a corresponding embossing with one of the hollow fiber structure 10 corresponding pressure structure or a corresponding Stamp done.
- microstructure heat exchanger according to the invention 5 according to the illustrated embodiment not even on a fluid guide or gas guide according to FIG 1 restricted.
- FIG. 3 explains how with the produced matrix body 15 a cooling of a cooling component in the form of a cooling plate 17 takes place.
- the cooling plate 17 by a suitable Contact pressure with the matrix body 15 compressed, wherein the cooling plate 17 thermally coupled to the matrix body 15 becomes.
- the good thermal coupling results here again by the elasticity and thermal conductivity of the used Graphite.
- the electrical connections then preferably on the surface facing away from the matrix body 15 are located.
- the thermal coupling between matrix body 15 and Cooling plate 17 also be provided that on the matrix body 15 applied a layer of a thermal conductive paste 16 becomes.
- cooling can be achieved by the use of fluids or gases such as air, water or a refrigerant.
- the fluid is, for example, by a with the supply line 12 related pump or gas for example, by a with the supply line 12 in connection standing fan through the microstructure heat exchanger 5 guided.
- microstructure heat exchanger 5 d. H. within the matrix body 15 embedded hollow fiber structure 10, an evaporation of a Make liquid, so that, for example, a cooling in the microstructure heat exchanger 5 according to the principle of Heat pipe takes place.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
Claims (15)
- Mikrostruktur-Wärmetauscher mit mindestens einer von einer Flüssigkeit oder einem Gas durchströmten Hohlfaserstruktur (10) und mindestens einem die Hohlfaserstruktur (10) zumindest bereichsweise umgebenden Matrixkörper (15), wobei der Matrixkörper (15) ein Graphitkörper ist, dadurch gekennzeichnet, dass der Matrixkörper (15) ein Graphitkörper aus verpresstem Graphit ist.
- Mikrostruktur-Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der Matrixkörper ein Graphitkörper aus miteinander verpressten Graphitfolien (14) aus expandiertem Graphit ist.
- Mikrostruktur-Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, dass die miteinander verpressten Graphitfolien (14) elastisch und/oder plastisch formbar sind und eine Dicke zwischen 250 µm und 3 mm aufweisen.
- Mikrostruktur-Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Matrixkörper (15) flächig ausgebildet ist und eine Dicke zwischen 500 µm und 5 mm aufweist.
- Mikrostruktur-Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Hohlfaserstruktur (10) eine metallische Hohlfaserstruktur ist.
- Mikrostruktur-Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, dass die Hohlfaserstruktur (10) eine Anordnung von Röhren (13) ist, die gasdurchgängig oder flüssigkeitsdurchgängig mit mindestens einer Zufuhrleitung (12) und mindestens einer Abfuhrleitung (11) in Verbindung stehen.
- Mikrostruktur-Wärmetauscher nach Anspruch 6, dadurch gekennzeichnet, dass die Röhren (13) regelmäßig angeordnet sind.
- Mikrostruktur-Wärmetauscher nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Wandstärke der Röhren (13) der Hohlfaserstruktur (10) zwischen 100 nm und 50 µm, insbesondere zwischen 500 nm und 5 µm, liegt.
- Mikrostruktur-Wärmetauscher nach Anspruch 6, 7 oder 8, dadurch gekennzeichnet, dass der mittlere Abstand der Röhren (13) der Hohlfaserstruktur (10) zwischen 5 µm und 10 mm, insbesondere zwischen 20 µm und 200 µm, liegt.
- Kühlvorrichtung mit einem Mikrostruktur-Wärmetauscher (5) nach einem der vorangehenden Ansprüche, wobei der Matrixkörper (15) wärmeleitend mit einem Kühlbauteil in Kontakt steht.
- Kühlvorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass das Kühlbauteil eine Kühlplatte (17) oder ein elektronisches Leistungsbauteil ist.
- Kühlvorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der Matrixkörper (15) des Mikrostruktur-Wärmetauschers (5) mit dem Kühlbauteil über eine thermische Leitpaste (16) wärmeleitend in Kontakt steht.
- Verfahren zur Herstellung eines Mikrostruktur-Wärmetauschers mit den Verfahrensschritten:a.) Bereitstellen einer Hohlfaserstruktur (10),b.) Bereitstellen von mindestens einem ersten Matrixteilkörper (14) und mindestens einem zweiten Matrixteilkörper (14), von denen mindestens einer elastisch und/oder plastisch formbar und gut wärmeleitend ist undc.) Verpressen der Hohlfaserstruktur (10) und der Matrixteilkörper (14) zu dem Mikrostruktur-Wärmetauscher (5), wobei die Matrixteilkörper (14) zu einem die Hohlfaserstruktur (10) zumindest bereichsweise umgebenden Matrixkörper (15) geformt werden.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass als erster und/oder zweiter Matrixteilkörper (14) eine Graphitfolie (14) eingesetzt wird.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass die Graphitfolie (14) vor dem Verpressen mit einer der Hohlfaserstruktur (10) entsprechenden Negativstrukturierung versehen wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10022972A DE10022972A1 (de) | 2000-05-11 | 2000-05-11 | Mikrostruktur-Wärmetauscher und Verfahren zu dessen Herstellung |
DE10022972 | 2000-05-11 | ||
PCT/DE2001/001571 WO2001086221A1 (de) | 2000-05-11 | 2001-04-26 | Mikrostruktur-wärmetauscher und verfahren zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1285213A1 EP1285213A1 (de) | 2003-02-26 |
EP1285213B1 true EP1285213B1 (de) | 2005-04-06 |
Family
ID=7641583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01935996A Expired - Lifetime EP1285213B1 (de) | 2000-05-11 | 2001-04-26 | Mikrostruktur-wärmetauscher und verfahren zu dessen herstellung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1285213B1 (de) |
JP (1) | JP2003533057A (de) |
KR (1) | KR100758836B1 (de) |
DE (2) | DE10022972A1 (de) |
ES (1) | ES2240457T3 (de) |
WO (1) | WO2001086221A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020167563A3 (en) * | 2019-02-05 | 2020-10-29 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Vascular composite heat exchanger |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10220705A1 (de) * | 2002-05-10 | 2003-11-27 | Abb Patent Gmbh | Einrichtung zur chemischen oder biochemischen Analyse von Proben oder Reagenzien unter Verwendung von Wasser als Lösungsmittel |
US20040118553A1 (en) * | 2002-12-23 | 2004-06-24 | Graftech, Inc. | Flexible graphite thermal management devices |
JP2006064296A (ja) * | 2004-08-27 | 2006-03-09 | Sgl Carbon Ag | 膨張黒鉛から成る熱伝導板とその製造方法 |
DE102005029051A1 (de) * | 2005-06-21 | 2006-12-28 | Sgl Carbon Ag | Wärmeleitvorrichtung für eine Fußboden-, Wand- oder Deckenheizung |
EP1736715A1 (de) * | 2005-06-23 | 2006-12-27 | Sgl Carbon Ag | Vakuumröhren für Solarkollektoren mit verbessertem Wärmeübergang |
EP2597041A1 (de) * | 2011-11-22 | 2013-05-29 | Active Space Technologies GmbH | Thermischer Streifen |
EP2667102B1 (de) | 2012-05-23 | 2014-12-24 | Inotec Gmbh & Co.KG | Verbundbauelement für eine Fußboden-, Wand- oder Deckenklimatisierungsvorrichtung eines Gebäudes |
JP6201458B2 (ja) * | 2013-06-28 | 2017-09-27 | 富士通株式会社 | 電子装置及び電子装置の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966473C (de) * | 1951-07-22 | 1957-09-12 | Huels Chemische Werke Ag | Graphitwaermeaustauscher |
FR2373498A1 (fr) * | 1976-12-09 | 1978-07-07 | Savoie Electrodes Refract | Bloc refroidi en materiau carbone |
JPS6453438A (en) * | 1987-08-25 | 1989-03-01 | Actronics Kk | Cooler for power semiconductor element |
US5079619A (en) | 1990-07-13 | 1992-01-07 | Sun Microsystems, Inc. | Apparatus for cooling compact arrays of electronic circuitry |
GB9211413D0 (en) * | 1992-05-29 | 1992-07-15 | Cesaroni Anthony Joseph | Panel heat exchanger formed from tubes and sheets |
US5829516A (en) * | 1993-12-15 | 1998-11-03 | Aavid Thermal Products, Inc. | Liquid cooled heat sink for cooling electronic components |
JP3521318B2 (ja) * | 1994-08-05 | 2004-04-19 | 株式会社日立製作所 | 高熱流束受熱板及びその製造方法 |
US5785754A (en) * | 1994-11-30 | 1998-07-28 | Sumitomo Electric Industries, Ltd. | Substrate, semiconductor device, element-mounted device and preparation of substrate |
JP3025441B2 (ja) * | 1996-08-08 | 2000-03-27 | 日本原子力研究所 | 核融合炉の第1壁の冷却用壁体の製作方法 |
JP2000082659A (ja) * | 1998-09-03 | 2000-03-21 | Miura Co Ltd | 現像液塗布システムおよびその制御方法 |
DE19910985B4 (de) * | 1999-03-12 | 2004-09-02 | Robert Bosch Gmbh | Verfahren zur Erzeugung metallischer Hohlfasern oder Hohlfaserstrukturen |
-
2000
- 2000-05-11 DE DE10022972A patent/DE10022972A1/de not_active Ceased
-
2001
- 2001-04-26 EP EP01935996A patent/EP1285213B1/de not_active Expired - Lifetime
- 2001-04-26 ES ES01935996T patent/ES2240457T3/es not_active Expired - Lifetime
- 2001-04-26 WO PCT/DE2001/001571 patent/WO2001086221A1/de active IP Right Grant
- 2001-04-26 KR KR1020027000304A patent/KR100758836B1/ko not_active IP Right Cessation
- 2001-04-26 DE DE50105837T patent/DE50105837D1/de not_active Expired - Lifetime
- 2001-04-26 JP JP2001583120A patent/JP2003533057A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020167563A3 (en) * | 2019-02-05 | 2020-10-29 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Vascular composite heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
KR100758836B1 (ko) | 2007-09-19 |
JP2003533057A (ja) | 2003-11-05 |
DE10022972A1 (de) | 2001-11-22 |
WO2001086221A1 (de) | 2001-11-15 |
DE50105837D1 (de) | 2005-05-12 |
KR20020037331A (ko) | 2002-05-18 |
ES2240457T3 (es) | 2005-10-16 |
EP1285213A1 (de) | 2003-02-26 |
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