DE102015004758A1 - Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling - Google Patents

Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling Download PDF

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Publication number
DE102015004758A1
DE102015004758A1 DE102015004758.2A DE102015004758A DE102015004758A1 DE 102015004758 A1 DE102015004758 A1 DE 102015004758A1 DE 102015004758 A DE102015004758 A DE 102015004758A DE 102015004758 A1 DE102015004758 A1 DE 102015004758A1
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Germany
Prior art keywords
heat pipes
mechanical clamping
cooling
heat
please refer
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.)
Withdrawn
Application number
DE102015004758.2A
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German (de)
Inventor
Markus Husterer
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INNOVATEK OS GmbH
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INNOVATEK OS GmbH
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Publication date
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Priority to DE102015004758.2A priority Critical patent/DE102015004758A1/en
Publication of DE102015004758A1 publication Critical patent/DE102015004758A1/en
Withdrawn legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/006Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing

Abstract

Für den Aufbau von großflächigen Kühlerelementen in Dimmensionsbereichen über 300 mm Kantenlänge und Anforderungen an einem möglichst geringen Temperaturgradienten im System muss eine effiziente Wärmeverteilung im Kühlelement sichergestellt werden. In aktuellen technischen Lösungen werden bisher bei Verwendung von Wärmerohren diese mittels mechanischer Klemmung oder einpressen oder einkleben fest mit dem Grundkörper verbunden. Der Erfindung liegt das Problem zugrunde das die einzelnen Komponenten, Wärmerohr und Kühlelement differierende Ausdehnungsraten aufweisen, bei zunehmenden Baugrößen wirken sich diese Unterschiede stärker aus. Insbesondere in Systemen die lageunabhängig immer konstante Wärmewiderstände erfordern und daher mit Sinterversionen der Wärmerohre arbeiten müssen die deutlich verschiedenen Ausdehnungsraten ausgeglichen werden ohne das die Langzeitstabilität des Verbundes leidet. Eine mechanische Klemmung die entsprechende Materialbewegungen erlaubt ist aufwendig und benötigt zusätzliche Konstruktionselemente und Bauraum. Mit der Erfindung wird erreicht, dass die Wärmerohre kräftearm im Verbund gehalten werden. Der Verbund zwischen Wärmerohr und Grundteil wird dabei ohne mechanische Klemmelemente und nur durch sehr elastische Kleber sichergestellt die unterschiedliche Wärmeausdehnung der Bauelemente durch elastische Verformung des Klebers ausgleichen. Die Erfindung kann in diversen Bereichen der Elektronik und des Maschinenbaus eingesetzt werden. Die Erfindung ermöglich die effektive Kühlung großer Leistungen auf kleinstem Bauraum bei sehr hoher Lebensdauer.For the construction of large-area radiator elements in dimming areas over 300 mm edge length and requirements for the lowest possible temperature gradient in the system, an efficient heat distribution in the cooling element must be ensured. In current technical solutions, when heat pipes are used, they have been firmly connected to the base body by means of mechanical clamping or pressing or gluing. The invention is based on the problem that the individual components, heat pipe and cooling element differing expansion rates, with increasing sizes, these differences have a stronger impact. Especially in systems requiring position-independent always constant thermal resistance and therefore work with sintered versions of the heat pipes must be compensated for the significantly different expansion rates without the long-term stability of the composite suffers. A mechanical clamping the appropriate material movements allowed is complicated and requires additional construction elements and space. With the invention it is achieved that the heat pipes are held low in strength in the composite. The bond between the heat pipe and the base is thereby ensured without mechanical clamping elements and only by very elastic adhesive compensate for the different thermal expansion of the components by elastic deformation of the adhesive. The invention can be used in various fields of electronics and mechanical engineering. The invention enables the effective cooling of large power in the smallest space with a very long service life.

Description

Für den Aufbau von großflächigen Kühlerelementen in Dimmensionsbereichen über 300 mm Kantenlänge und Anforderungen an einem möglichst geringen Temperaturgradienten im System muss eine effiziente Wärmeverteilung im Kühlelement sichergestellt werden. In aktuellen technischen Lösungen werden bisher bei Verwendung von Wärmerohren diese mittels mechanischer Klemmung oder einpressen oder einkleben fest mit dem Grundkörper verbunden. Lösungen die eine schwimmende Lagerung der Wärmerohre ermöglichen sind aus mehreren Bauteilen aufgebaut die zusätzliche Bauteile und zusätzlichen Bauraum benötigen.For the construction of large-area radiator elements in dimming areas over 300 mm edge length and requirements for the lowest possible temperature gradient in the system, an efficient heat distribution in the cooling element must be ensured. In current technical solutions, when heat pipes are used, they have been firmly connected to the base body by means of mechanical clamping or pressing or gluing. Solutions that allow a floating storage of the heat pipes are constructed of several components that require additional components and additional space.

Der im Schutzanspruch 1 gegebenen Erfindung liegt das Problem zugrunde das die einzelnen Komponenten, Wärmerohr und Kühlelement differierende Ausdehnungsraten aufweisen, bei zunehmenden Baugrößen wirken sich diese Unterschiede stärker aus. Insbesondere in Systemen die lageunabhängig immer konstante Wärmewiderstände erfordern und daher mit Sinterversionen der Wärmerohre arbeiten müssen die deutlich verschiedenen Ausdehnungsraten ausgeglichen werden ohne das die Langzeitstabilität des Verbundes leidet. Eine mechanische Klemmung die entsprechende Materialbewegungen erlaubt ist aufwendig und benötigt zusätzliche Konstruktionselemente und Bauraum.The protection given in claim 1 invention is based on the problem that the individual components, heat pipe and cooling element differing expansion rates, with increasing sizes, these differences have a stronger impact. Especially in systems requiring position-independent always constant thermal resistance and therefore work with sintered versions of the heat pipes must be compensated for the significantly different expansion rates without the long-term stability of the composite suffers. A mechanical clamping the appropriate material movements allowed is complicated and requires additional construction elements and space.

Mit der Erfindung wird erreicht dass die Wärmerohre kräftearm im Verbund gehalten werden. Der Verbund zwischen Wärmerohr und Grundteil wird dabei ohne mechanische Klemmelemente und nur durch sehr elastische Kleber sichergestellt die unterschiedliche Wärmeausdehnung der Bauelemente durch elastische Verformung des Klebers ausgleichen. Die mechanische Fixierung erfolgt dabei nur durch den dauerhaft elastischen Kleber. Eine vorteilhafte Ausgestaltung liegt vor wenn dem dauerhaft elastischen Kleber Füllstoffe zugesetzt werden die die Wärmeleitfähigkeit verbessern.With the invention it is achieved that the heat pipes are held low in strength composite. The bond between the heat pipe and the base is thereby ensured without mechanical clamping elements and only by very elastic adhesive compensate for the different thermal expansion of the components by elastic deformation of the adhesive. The mechanical fixation is carried out only by the permanently elastic adhesive. An advantageous embodiment is when the permanently elastic adhesive fillers are added to improve the thermal conductivity.

Claims (1)

Das Herstellungsverfahren zur Fertigung großflächiger Kühlplatten mit integrierten Wärmerohren ist dadurch gekennzeichnet, dass: – Ein Grundteil (1) (siehe 1) mit Ausnehmungen (3) (siehe 1) für Wärmerohre (2) (siehe 1) die ein Einbauspiel aufweisen – keine weiteren mechanischen Klemmelemente erforderlich sind – Die Verbindung zwischen Grundteil und Wärmerohr mittels elastischen und füllstoffhaltigen Klebern erfolgt (4) (siehe 1) – Der Kleber (4) (siehe 1) die im Einsatzbereich entstehenden mechanischen Bewegungen durch temperaturbedingte Ausdehnung elastisch ausgleicht.The production process for the production of large-area cooling plates with integrated heat pipes is characterized in that: 1 ) (please refer 1 ) with recesses ( 3 ) (please refer 1 ) for heat pipes ( 2 ) (please refer 1 ) which have an installation clearance - no further mechanical clamping elements are required - The connection between the base and the heat pipe by means of elastic and filler-containing adhesives takes place ( 4 ) (please refer 1 ) - The glue ( 4 ) (please refer 1 ) elastically compensates for the mechanical movements arising in the area of application due to temperature-induced expansion.
DE102015004758.2A 2015-04-16 2015-04-16 Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling Withdrawn DE102015004758A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102015004758.2A DE102015004758A1 (en) 2015-04-16 2015-04-16 Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015004758.2A DE102015004758A1 (en) 2015-04-16 2015-04-16 Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling

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DE102015004758A1 true DE102015004758A1 (en) 2016-10-20

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DE102015004758.2A Withdrawn DE102015004758A1 (en) 2015-04-16 2015-04-16 Manufacturing process for manufacturing large-area cooling plates with integrated heat pipes for position-independent cooling

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107825076A (en) * 2017-11-13 2018-03-23 贵州航帆精密机械制造有限公司 A kind of processing method of major diameter thin plate disk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107825076A (en) * 2017-11-13 2018-03-23 贵州航帆精密机械制造有限公司 A kind of processing method of major diameter thin plate disk
CN107825076B (en) * 2017-11-13 2019-04-30 贵州航帆精密机械制造有限公司 A kind of processing method of major diameter thin plate disk

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