EP3121546A1 - Heat distributor element - Google Patents
Heat distributor element Download PDFInfo
- Publication number
- EP3121546A1 EP3121546A1 EP16001557.4A EP16001557A EP3121546A1 EP 3121546 A1 EP3121546 A1 EP 3121546A1 EP 16001557 A EP16001557 A EP 16001557A EP 3121546 A1 EP3121546 A1 EP 3121546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- heat spreader
- spreader element
- heat
- liquid
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-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
- F28D15/02—Heat-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
- F28D15/0233—Heat-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 the conduits having a particular shape, e.g. non-circular cross-section, annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-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
- F28D15/02—Heat-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
- F28D15/025—Heat-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 having non-capillary condensate return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-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
- F28D15/02—Heat-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
- F28D15/04—Heat-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 with tubes having a capillary structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-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
- F28D15/02—Heat-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
- F28D15/06—Control arrangements therefor
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/08—Fluid driving means, e.g. pumps, fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
Definitions
- the invention relates to a heat spreader element which has a plate shape and consists of a heat source exposed part and a heat emitting part which communicates with the first part.
- the said devices essentially consist of a container which has the shape of a single tube or a more or less shallow chamber, which is usually made of a metal with good thermal conductivity; one part of the container is exposed to one source of heat (evaporator section), while the opposite part (condensation section) spaced from the first part is exposed to a less warm zone and / or to a less hot gas or fluid.
- Said container contains a relatively modest amount of liquid, eg water, ethanol, acetone, R410 (cooling liquid) and vapor of the same liquid to exclude the presence of other gases.
- the heat spreader elements which have a certain extent or / and are arranged with the evaporator region at a different level to the condensing region usually contain in their interior a layer which is usually a nonwoven or felt, eg of inorganic fibers, or are on their inner surfaces with an internal one Coating, for example made of sintered metals, provided, said inner layers or coatings exert a capillary action around the to recycle condensed liquid into the evaporation zone.
- Usually spacers are provided inside to form passages for the vapor and the liquid.
- the area which is exposed to a less warm environment ie the condensation area, often equipped with cooling fins which is sometimes exposed to the, moved by a fan, air flow during the, the heat source exposed area, ie the evaporator area, a color and Shape which is suitable to absorb the heat efficiently.
- a heat spreader element wherein the steam chamber is in the form of plates which are arranged at different levels and are connected by a vapor flow area or condensed liquid flow area, the two walls which will form the plates by their own interposed structure kept at a distance.
- a heat distribution element with steam chamber which has the shape of a plate which extends in a single plane and in which spacer elements are provided which inside of one and / or from the other, forming the chamber, the metal sheet to the flow of the steam, or condensed liquid, secure. Also in this case, the spacer elements must be specially made or attached to the said sheets, which requires an additional work phase and additional costs.
- the flat surfaces of the walls of the heat spreader also provide an area of reduced heat exchange.
- a heat spreader element is known in which the steam chamber is formed from an extruded metal profile which has a plurality of ribs on the condensation side to increase the heat exchange surface.
- the chamber for the flow of the vapor and the condensed liquid can only have a limited width because no inner spacers are provided.
- the preparation of this heat spreader element is expensive and only possible in limited dimensions.
- a heat spreader element which comprises a generally planar, sealed, flexible body having an evaporator section, a condensation section and a flexible "bellows section".
- the bellows area arranged between the evaporator area and the condensation area contains inner spacer elements in order to ensure the flow of the vapor or of the liquid during the bending of this area.
- This heat spreader element does not have undulations or meanders extending over the entire plate, or flat areas of the lid or bottom which correspond to a corrugated area on the opposite lid or bottom.
- This heat spreader element has limited Heat exchange surfaces in the evaporator and condensation area and does not allow the deformation of the plate elements in these areas.
- the invention has the object to provide a heat spreader element of the aforementioned type whose production is simple and inexpensive, which can possibly also be done with considerable dimensions and at low prices, which achieves a considerable thermal efficiency, versatile in the application and reliable in function ,
- the waves of the two parts can be parallel or overlapping one another.
- the formation is provided in the manner of a cross vault, whereby the free flow of the steam is secured in different directions between the bottom and lid.
- a full-area or net-shaped nonwoven fabric or a felt layer is provided, in the case of the net shape, for example, only the free areas between the zones of mutual contact and the eventual anchoring between Floor and lid are occupied.
- the layer with capillary action can be interrupted according to a line transverse to the capillary flow direction and the edges of the layer can overlap or touch at the separation point so that the capillary flow is maintained at said points, with the possibility of this , by minimal lifting or distancing the overlapping, or touching, edge to interrupt.
- the said interruption and restoration of the capillary flow can be achieved by means of magnetic elements which are attached to one of the edges of the layers with capillary action and can be actuated by means of a movable magnet on the outside.
- the said interruption and restoration of the flow can also be generated by means of tubes and / or cavernous bodies which are connected to the exterior of the heat spreader element in order to be actuated by the introduction and suction of a liquid or gas; It is also an electrical operation or by induction conceivable.
- the corrugated part of the plates e.g. of the lid
- the corrugated part of the plates is on the flat part of the floor, e.g. anchored by spot welding or gluing in the area of the "valleys" of the undulations or meanders, flattened areas may also be provided where the corrugated part, e.g. of the lid, on a larger surface of the flat part, e.g. of the soil, rests; In these areas of mutual anchoring, fasteners may be attached or through bores for the attachment of fasteners may be provided around the heat spreader element, e.g. to attach to a supporting structure.
- the corrugated area or the corrugated areas flattened to create a continuous support surface with the flat corresponding part, or a flat support between the corrugated part of the lid and the, also corrugated, part of the bottom To create a tight connection by means of welding or gluing.
- the heat spreader element produced in this way consists of two parts (bottom and lid) which can be produced at low cost and over a large area may take a flat, curved, corrugated and / or meandering course, which allows corrugated part with lines of contact, together with the flat part, the convenient bending and / or the bending in the region of each of said contact lines, with a good dimensional stability for the remaining extent preserved.
- the waves or meanders which are intersecting with the bending area must experience a more or less pronounced deformation, according to the bending angle or bending radius, this deformation causes a slight constriction of the corresponding free flow cross-section.
- Said deformation possibility makes it possible to arrange parts of the same heat spreader element at different levels, with connection sections with different inclinations.
- the arrangement of the heat spreader element with one, the heat source exposed part and the other, for example, opposite, to the first, arranged part, is also feasible by two plates are used which are connected by pipes or channels which may be with devices for changing the flow rate, such as Control valves and / or circulation pumps are equipped.
- the said tubes and channels can also run into one another, advantageously the inner tube for the forwarding of the condensed liquid, this can be provided with openings / nozzles along the path extending in the outer tube and / or in the end region, within the steam chamber.
- the plate member of the heat spreader element according to the invention itself offers to be deformed wavy or meandering to obtain large heat exchange surfaces in a confined space, with the possibility of cross-section open or closed passages with a "chimney effect” and a considerable improvement in the thermal efficiency of the liquid or to create the gas that moves along the heat exchange surfaces.
- This deformability further favors in assembly phase, the adaptability of the heat spreader element.
- the heat spreader element according to the invention does not require any spacers inserted between the bottom and the lid, which simplifies the production and reduces the expense.
- the simple shaping of the essential components of the heat spreader element according to the invention makes it possible to use a wide variety of different materials, e.g. Metal sheets, plastic laminates, glass, reinforced concrete, which are e.g. be processed by roll bending, deep drawing, vacuum forming, compression molding or molding.
- the heat spreader element according to the invention can be provided with, possibly transparent, covers which partially or completely cover the heat spreader element. Furthermore, according to the invention, the heat distribution element can be provided with a thermal insulation layer at the areas where a limited heat exchange is required. The invention does not preclude the attachment of ribs, protrusions, grains, crystals of thermally highly conductive materials to the plate outer surfaces, thereby increasing the heat exchange surface area.
- the Fig. 1 is a perspective view of a heat spreader element according to the invention with a horizontally disposed part and the other part in the upwardly angled position and with the bending edge corresponding to the position of one of the transverse waves provided on the cover.
- the Fig. 1 a shows a perspective view, consisting of two elements, according to the invention aboard the vehicle.
- balverteilerimplantations which are connected by two, equipped with regulating members for the flow rate, tubes.
- the Fig. 1b shows a cross-section through a part of the heat-distributing element with corrugated lid and with the layer with capillary action which is equipped with a device for interrupting the capillary action.
- the Fig. 1c shows a detail of the heat spreader element according to the invention in a connection region between the lid and the bottom, with a through hole for the attachment.
- FIG. 2 to Fig. 4 show in perspective different forms of corrugation of the lid of a heat spreader element according to the invention.
- the Fig. 4a shows in perspective a detail of the plate of a heat spreader element according to the invention with the arrangement of the corrugated lid in the position of deformation of the flat bottom and with the flow of steam, inside the heat spreader element, according to several directions.
- FIG. 5 to Fig. 7 show heat spreader elements according to the invention in side view which have corrugated, or different meandering shape.
- the so-called “steam chamber” of the heat distribution element 1 according to the invention is formed from a flat bottom 2, from a corrugated or meandering cover 3 and from a, inserted between these two elements, layer 4 with capillary action.
- the corrugation 3 of the lid with a parallel course, according to one of the extensions of the heat distribution element is, for example in the direction of 90 °, of individual or overlapped multiple, parallel, spaced apart waves 3b or meander which extend according to the second extension of the plate.
- the latter may have flattened areas 5 which have connections, eg welded connections with through holes or with external fastening elements for fastening the heat distribution element 1, eg to a load-bearing structure.
- the lid 3 may also have flat portions which are attached to corrugated portions of the bottom 2, and the wavy portions of the lid may be attached to, also corrugated, portions of the bottom 2.
- the choice of corrugated or flat structuring is made on the said areas due to the required conditions of heat exchange.
- the capillary layer 4 may extend continuously, intermittently only at the junctures or regions D between the bottom 2 and the lid 3, or may consist of a net with capillary action, excluding the use of strips or bundles of capillary material which extend along the passages formed by the shafts 3a, 3b or meanders of the lid 3, a sintered material with capillary action may also be used.
- the said elements which form the layer 4 with capillary action can be interrupted and with a device 40 (FIG. Fig. 1 b) be prepared, which between the edges which are formed by the cutting of the layer, the capillary flow can be interrupted and restored 4a.
- This device 40 can be actuated, for example, magnetically, hydraulically, pneumatically or by induction from outside on the heat distribution element 1.
- the wave or meandering structure allows arcuate or crease-shaped deformation parallel to the corrugation 3a, according to the flow A of the steam or parallel to the corrugation 3b, according to the flow B of the vapor. Only in the case of a deformation with a small bending radius, a partial constriction of the affected waves 3a, 3b, at least without interrupting the steam flow.
- the structural features of the plate of the heat spreader element 1 according to the invention and thus the deformability according to the corrugation 3a, 3b of the lid, or the bottom 2, allow the production of heat spreader elements considerable size, which can even take different wavy or meandering shapes around a large Heat exchange surface with or without passages P, which are suitable for a higher heat exchange (chimney effect) and thus to achieve an intensive heat exchange.
- the plate 1 or the plates E, K of the heat spreader element according to the invention can be provided with a cover made of a possibly transparent and / or heat-insulating material at a region or at the entire extension in order to provide heat exchange in these regions to influence thermal dispersion and / or to use the effect of solar radiation, or to reduce.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Wärmeverteilerelement mit plattenförmiger Dampfkammer mit Verdampfungsbereich für die enthaltene Flüssigkeit und Kondensierungsbereich für die verdampfte Flüssigkeit, gebildet aus einem Boden (2) und einem Deckel (3) welche eine Schicht (4) mit Kapillarwirkung für die kondensierte Flüssigkeit enthalten wobei, sei es der Deckel (3), als auch der Boden (2) über die gesamte oder über einen Teil ihrer Erstreckung wellen- oder mäanderförmig sind, so dass ein welliger Teil des Deckels einem flachen oder welligen Tei des Bodens (2) und ein flacher Teil des Deckels (3) einem welligen Teil des Bodens (2) und umgekehrt entspricht und dass die, unter sich beabstandeten einzelnen oder in Gruppen angeordneten Wellen (3a) oder Mäander in den Bereichen der Überschneidung (C) kreuzgewölbeartig ausgeformt sind um den Durchfluss in zwei Richtungen (A, B) zu sichern.A plate-shaped steam-chamber heat-dissipating member having a liquid-contained evaporating portion and a vaporized liquid condensing portion formed of a bottom (2) and a lid (3) containing a condensed liquid capillary layer (4), be it the lid (4) 3), as well as the bottom (2) over the entire or over part of its extension wave or meandering, so that a wavy part of the lid a flat or wavy Tei the bottom (2) and a flat part of the lid (3 ) corresponds to a wavy part of the bottom (2) and vice versa, and that the undivided individual or grouped corrugations (3a) or meanders in the regions of the intersection (C) are of a cross-arched shape around the flow in two directions (A, B) to secure.
Description
Die Erfindung betrifft ein Wärmeverteilerelement welches eine Plattenform aufweist und aus einem, einer Wärmequelle ausgesetzten, Teil und einem Wärme abgebenden Teil besteht welcher mit dem ersten Teil in Verbindung steht.The invention relates to a heat spreader element which has a plate shape and consists of a heat source exposed part and a heat emitting part which communicates with the first part.
Es sind Wärmeverteilerelemente bekannt, welche auch als Kühlkörper, als heat pipe oder Dampfkammer-Kühlkörper bezeichnet werden, alle nutzen das Prinzip der Wärmeaufnahme seitens einer verdampfenden Flüssigkeit und der Wärmeabgabe welche, bei der Rückführung in den flüssigen Zustand, durch kondensierenden Dampf erfolgt. Um dieses Prinzip auf effiziente Weise nutzen zu können, bestehen die besagten Vorrichtungen wesentlich aus einem Behälter welche die Form eines Einzelrohres oder einer, mehr oder weniger, flachen Kammer aufweist welche meist aus einem Metall mit guter thermischer Leitfähigkeit hergestellt wird; ein Teil des Behälters ist einer Wärmequelle ausgesetzt (Verdampferbereich), während der entgegengesetzte, vom ersten Teil beabstandete, Teil (Kondensationsbereich) einem weniger warmen Bereich ausgesetzt ist und/oder einem weniger warmen Gas oder einer weniger warmen Flüssigkeit ausgesetzt ist. Der besagte Behälter beinhaltet eine relativ bescheidene Menge an Flüssigkeit, z.B. Wasser, Ethanol, Azeton, R410 (Kühlflüssigkeit) und Dampf der selben Flüssigkeit um die Präsenz anderer Gase auszuschließen. Die Wärmeverteilerelemente welche ein gewisses Ausmaß haben oder/und mit dem Verdampferbereich auf einem unterschiedlichen Niveau zum Kondensierungsbereich angeordnet sind, enthalten in ihrem Inneren normalerweise eine Schicht welche meist ein Vliesstoff oder Filz, z.B. aus anorganischen Fasern, ist oder sind an ihren Innenflächen mit einer internen Beschichtung, z.B. aus gesinterten Metallen, versehen, diese besagten inneren Schichten oder Beschichtungen üben eine Kapillarwirkung aus um die kondensierte Flüssigkeit in den Verdampfungsbereich rückzuführen. Meistens sind innen Abstandselemente vorgesehen um Durchlässe für den Dampf und die Flüssigkeit zu bilden. Außen ist, insbesondere der Bereich welcher einer weniger warmen Umgebung ausgesetzt ist, also der Kondensierungsbereich, oft mit Kühlrippen ausgestattet welche zuweilen dem, von einem Lüfter bewegten, Luftstrom ausgesetzt ist, während der, der Wärmequelle ausgesetzte Bereich, also der Verdampferbereich, eine Farbe und Form aufweist welche geeignet ist die Wärme effizient aufzunehmen.There are known heat spreader elements, which are also referred to as heat sink, heat pipe or steam chamber heat sink, all use the principle of heat absorption by an evaporating liquid and the heat transfer which, in the return to the liquid state, by condensing steam. To be able to use this principle in an efficient manner, the said devices essentially consist of a container which has the shape of a single tube or a more or less shallow chamber, which is usually made of a metal with good thermal conductivity; one part of the container is exposed to one source of heat (evaporator section), while the opposite part (condensation section) spaced from the first part is exposed to a less warm zone and / or to a less hot gas or fluid. Said container contains a relatively modest amount of liquid, eg water, ethanol, acetone, R410 (cooling liquid) and vapor of the same liquid to exclude the presence of other gases. The heat spreader elements which have a certain extent or / and are arranged with the evaporator region at a different level to the condensing region usually contain in their interior a layer which is usually a nonwoven or felt, eg of inorganic fibers, or are on their inner surfaces with an internal one Coating, for example made of sintered metals, provided, said inner layers or coatings exert a capillary action around the to recycle condensed liquid into the evaporation zone. Mostly spacers are provided inside to form passages for the vapor and the liquid. Outside, in particular the area which is exposed to a less warm environment, ie the condensation area, often equipped with cooling fins which is sometimes exposed to the, moved by a fan, air flow during the, the heat source exposed area, ie the evaporator area, a color and Shape which is suitable to absorb the heat efficiently.
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Die Erfindung stellt sich die Aufgabe ein Wärmeverteilerelement der obgenannten Art zu schaffen dessen Herstellung einfach und spesengünstig ist, welches eventuell auch mit beachtlichen Abmaßen und zu günstigen Preisen erfolgen kann, welches einen beachtlichen thermischen Wirkungsgrad erreicht, vielseitig in der Anwendung und zuverlässig in der Funktion ist.The invention has the object to provide a heat spreader element of the aforementioned type whose production is simple and inexpensive, which can possibly also be done with considerable dimensions and at low prices, which achieves a considerable thermal efficiency, versatile in the application and reliable in function ,
Zur Lösung dieser Aufgabe schlägt die Erfindung die Herstellung eines Wärmeverteilerelementes vor, wobei die Kammer aus einem Boden und einem Deckel gebildet wird welche, in Bezug zu den Bedingungen der geforderten Wärmeübertragung, aus einer wellig gearbeiteten Platte mit rundlichem oder mäanderartigem, dreieckförmigem oder trapezförmigem Verlauf, gemäß einer Erstreckungsrichtung und mit "Wellen oder Mäander" welche sich in Richtung ca. 90° zur ersten Richtung erstrecken, zusammengesetzt ist oder aus einer flachen, oder mit einer oder mehreren gewellten Bereichen und einer oder mehrerer flachen Bereichen ausgestatteten Platte zusammengestzt ist so dass, durch die Verbindung zwischen Boden und Deckel:
- Bereiche mit flachem Boden und gewelltem Deckel,
- Bereiche mit gewelltem Boden und flachem Deckel,
- Bereiche mit gewelltem Boden und gewelltem Deckel, entstehen.
- Areas with a flat bottom and a wavy lid,
- Areas with a wavy bottom and a flat lid,
- Areas with wavy bottom and wavy lid arise.
In diesem letzten Fall können die Wellen der beiden Teile zueinander parallel oder sich überschneidend verlaufen. An den Schnittpunkten zwischen den besagten Wellen oder Mäander des selben Elements ist die Ausbildung nach Art eines Kreuzgewölbes vorgesehen, wodurch der freie Durchfluss des Dampfes nach unterschiedlichen Richtungen zwischen Boden und Deckel gesichert wird. Zwischen Boden und Deckel ist, mindestens im Bereich der Durchflusskanäle für den Dampf, ein vollflächiges oder netzförmiges Vliesgewebe oder eine Filzschicht vorgesehen wobei, im Fall der Netzform, z.B. nur die freien Flächen zwischen den Zonen der gegenseitigen Berührung und der eventuellen Verankerung zwischen Boden und Deckel besetzt werden. Gemäß einer Weiterentwicklung der Erfindung kann die Schicht mit Kapillarwirkung gemäß einer Linie, quer zur kapillaren Flussrichtung, unterbrochen werden und die Ränder der Schicht können sich an der Trennstelle überlappen oder berühren so dass an den besagten Stellen der kapillare Durchfluss erhalten bleibt, mit der Möglichkeit diesen, durch minimales Anheben oder Distanzieren des überlappenden, bzw. berührenden, Randes, zu unterbrechen. Erfindungsgemäß ist die besagte Unterbrechung und Wiederherstellung des Kapillarflusses mittels magnetischer Elemente realisierbar welche an einem der Ränder der Schichten mit Kapillarwirkung angebracht sind und mittels einem beweglichen Magnet an der Außenseite betätigt werden können. Die besagte Unterbrechung und Wiederherstellung des Flusses kann auch mittels Röhrchen und/oder Schwellkörper erzeugt werden welche mit dem Außenbereich des Wärmeverteilerelementes in Verbindung stehen um, durch Einbringen und Ansaugen einer Flüssigkeit oder von Gas, betätigt werden zu können; es ist auch eine elektrische Betätigung oder durch Induktion denkbar.In this latter case, the waves of the two parts can be parallel or overlapping one another. At the intersections between the said waves or meanders of the same element, the formation is provided in the manner of a cross vault, whereby the free flow of the steam is secured in different directions between the bottom and lid. Between the bottom and cover, at least in the area of the flow channels for the steam, a full-area or net-shaped nonwoven fabric or a felt layer is provided, in the case of the net shape, for example, only the free areas between the zones of mutual contact and the eventual anchoring between Floor and lid are occupied. According to a further development of the invention, the layer with capillary action can be interrupted according to a line transverse to the capillary flow direction and the edges of the layer can overlap or touch at the separation point so that the capillary flow is maintained at said points, with the possibility of this , by minimal lifting or distancing the overlapping, or touching, edge to interrupt. According to the invention, the said interruption and restoration of the capillary flow can be achieved by means of magnetic elements which are attached to one of the edges of the layers with capillary action and can be actuated by means of a movable magnet on the outside. The said interruption and restoration of the flow can also be generated by means of tubes and / or cavernous bodies which are connected to the exterior of the heat spreader element in order to be actuated by the introduction and suction of a liquid or gas; It is also an electrical operation or by induction conceivable.
Der gewellte Teil der Platten, z.B. des Deckels, ist am flachen Teil des Bodens, z.B. durch Punktschweißen oder Kleben im Bereich der "Täler" der Wellen oder Mäander verankert, es können auch abgeflachte Bereiche vorgesehen sein wo der gewellte Teil, z.B. des Deckels, an einer größeren Oberfläche des flachen Teiles, z.B. des Bodens, aufliegt; in diesen Bereichen der gegenseitigen Verankerung können Befestigungselemente angebracht werden oder durchgehende Bohrungen für die Anbringung von Befestigungselementen vorgesehen sein um das Wärmeverteilerelement, z.B. an einer tragenden Struktur zu befestigen. Längs der umlaufenden Ränder des Wärmeverteilerelementes ist der gewellte Bereich oder sind die gewellten Bereiche abgeflacht um eine durchgehende Auflagefläche mit dem flachen entsprechenden Teil zu schaffen, bzw. um eine flache Auflage auch zwischen dem gewellten Teil des Deckels und dem, ebenfalls gewellten, Teil des Bodens, zwecks dichter Verbindung mittels Schweißen oder Kleben, zu schaffen.The corrugated part of the plates, e.g. of the lid, is on the flat part of the floor, e.g. anchored by spot welding or gluing in the area of the "valleys" of the undulations or meanders, flattened areas may also be provided where the corrugated part, e.g. of the lid, on a larger surface of the flat part, e.g. of the soil, rests; In these areas of mutual anchoring, fasteners may be attached or through bores for the attachment of fasteners may be provided around the heat spreader element, e.g. to attach to a supporting structure. Along the peripheral edges of the heat spreader element is the corrugated area or the corrugated areas flattened to create a continuous support surface with the flat corresponding part, or a flat support between the corrugated part of the lid and the, also corrugated, part of the bottom To create a tight connection by means of welding or gluing.
Das derart hergestellte Wärmeverteilerelement besteht aus zwei Teilen (Boden und Deckel) welche spesengünstig und großflächig hergestellt werden können, es kann einen flachen, gekrümmten, gewellten und/oder mäanderförmigen Verlauf einnehmen, der gewellte Teil mit Kontaktlinien ermöglicht, zusammen mit dem flachen Teil, das bequeme Biegen und/oder das Durchbiegen im Bereich jeder der besagten Kontaktlinien, wobei für die restliche Erstreckung eine gute Formstabilität erhalten bleibt. Natürlich müssen, längs der Verformungs- oder Biegelinie, bzw. -linien, die Wellen oder Mäander, welche zum Biegebereich überschneidend verlaufen, eine mehr oder weniger starke Verformung, gemäß dem Biegewinkel oder Biegeradius, erfahren, diese Verformung bewirkt eine leichte Verengung des entsprechenden freien Durchflussquerschnittes. Diese besagte Verformungsmöglichkeit gestattet es, Teile des selben Wärmeverteilerelementes auf unterschiedlichen Niveaus, mit Verbindungsabschnitten mit unterschiedlicher Neigung, anzuordnen. Die Anordnung des Wärmeverteilerelementes mit einem, der Wärmequelle ausgesetzten, Teil und dem anderen, z.B. gegenüberliegend, zum ersten, angeordneten Teil, ist auch realisierbar indem zwei Platten verwendet werden welche über Rohre oder Kanäle verbunden sind welche eventuell mit Vorrichtungen zur Änderung der Durchflussmenge, wie Regelventile und/oder Umlaufpumpen, ausgestattet sind. Die besagten Rohre und Kanäle können erfindungsgemäß auch ineinander angeordnet verlaufen, vorteilhafterweise das innenliegende Rohr für die Weiterleitung der kondensierten Flüssigkeit, dieses kann, entlang der im Außenrohr verlaufenden Strecke und/oder im Endbereich, innerhalb der Dampfkammer, mit Öffnungen/Düsen versehen sein. Nachdem der Plattenteil des erfindungsgemäßen Wärmeverteilerelementes selbst sich anbietet wellen- oder mäanderförmig verformt zu werden um auf engem Raum große Wärmeaustauschflächen zu erhalten, mit der Möglichkeit, im Querschnitt offene oder geschlossene Durchzüge mit einem "Kamineffekt" und einer beachtlichen Verbesserung des thermischen Wirkungsgrades für die Flüssigkeit oder das Gas, welches sich entlang der Wärmeaustauschflächen bewegt, zu schaffen. Diese Verformbarkeit begünstigt weiters in Montagephase, die Anpassungsfähigkeit des Wärmeverteilerelementes.The heat spreader element produced in this way consists of two parts (bottom and lid) which can be produced at low cost and over a large area may take a flat, curved, corrugated and / or meandering course, which allows corrugated part with lines of contact, together with the flat part, the convenient bending and / or the bending in the region of each of said contact lines, with a good dimensional stability for the remaining extent preserved. Of course, along the deformation or bending line or lines, the waves or meanders which are intersecting with the bending area must experience a more or less pronounced deformation, according to the bending angle or bending radius, this deformation causes a slight constriction of the corresponding free flow cross-section. Said deformation possibility makes it possible to arrange parts of the same heat spreader element at different levels, with connection sections with different inclinations. The arrangement of the heat spreader element with one, the heat source exposed part and the other, for example, opposite, to the first, arranged part, is also feasible by two plates are used which are connected by pipes or channels which may be with devices for changing the flow rate, such as Control valves and / or circulation pumps are equipped. According to the invention, the said tubes and channels can also run into one another, advantageously the inner tube for the forwarding of the condensed liquid, this can be provided with openings / nozzles along the path extending in the outer tube and / or in the end region, within the steam chamber. After the plate member of the heat spreader element according to the invention itself offers to be deformed wavy or meandering to obtain large heat exchange surfaces in a confined space, with the possibility of cross-section open or closed passages with a "chimney effect" and a considerable improvement in the thermal efficiency of the liquid or to create the gas that moves along the heat exchange surfaces. This deformability further favors in assembly phase, the adaptability of the heat spreader element.
Das erfindungsgemäße Wärmeverteilerelement benötigt keinerlei, zwischen Boden und Deckel eingesetzte, Abstandselemente, wodurch die Fertigung vereinfacht und der Spesenaufwand vermindert wird.The heat spreader element according to the invention does not require any spacers inserted between the bottom and the lid, which simplifies the production and reduces the expense.
Die einfache Formgebung der wesentlichen Bauteile des erfindungsgemäßen Wärmeverteilerelementes ermöglicht für dessen Herstellung den Einsatz einer großen Vielfalt unterschiedlicher Werkstoffe, z.B. Metallbleche, Kunststofflaminate, Glas, Eisenbeton, welche z.B. durch Rollbiegen, Tiefziehen, Vakuumverformung, Formpressen oder Giesen verarbeitet werden können.The simple shaping of the essential components of the heat spreader element according to the invention makes it possible to use a wide variety of different materials, e.g. Metal sheets, plastic laminates, glass, reinforced concrete, which are e.g. be processed by roll bending, deep drawing, vacuum forming, compression molding or molding.
Das erfindungsgemäße Wärmeverteilerelement kann mit, eventuell transparenten, Abdeckungen versehen werden welche das Wärmeverteilerelement teilweise oder vollständig abdecken. Weiters kann erfindungsgemäß das Wärmeverteilerelement an den Bereichen, wo ein begrenzter Wärmeaustausch erforderlich ist, mit einer thermischen Dämmschicht versehen werden. Die Erfindung schließt die Anbringung von Rippen, Vorsprüngen, Körnern, Kristallen aus thermisch gut leitenden Werkstoffen an den Plattenaußenflächen nicht aus, um dadurch die Wärmeaustauschfläche zu vergrößern.The heat spreader element according to the invention can be provided with, possibly transparent, covers which partially or completely cover the heat spreader element. Furthermore, according to the invention, the heat distribution element can be provided with a thermal insulation layer at the areas where a limited heat exchange is required. The invention does not preclude the attachment of ribs, protrusions, grains, crystals of thermally highly conductive materials to the plate outer surfaces, thereby increasing the heat exchange surface area.
Die Erfindung wird anhand einiger, in den beigelegen Zeichnungen schematisch dargestellter, vorzuziehender Ausführungsbeispiele erfindungsgemäßer Wärmeverteilerelemente näher erklärt, dabei erfüllen die Zeichnungen rein erklärenden, nicht begrenzenden Zweck.The invention will be explained in more detail with reference to some, in the accompanying drawings schematically illustrated, preferable embodiments of inventive heat spreader elements, the drawings meet purely explanatory, non-limiting purpose.
Die
Die
Die
Die
Die Darstellungen von
Die
Die Darstellungen von
Die sogenannte "Dampfkammer" des erfindungsgemäßen Wärmeverteilerelementes 1 ist aus einem flachen Boden 2, aus einem gewellten oder mäanderförmigen Deckel 3 und aus einer, zwischen diesen beiden Elementen eingelegten, Schicht 4 mit Kapillarwirkung gebildet. Die Wellung 3 des Deckels mit parallelem Verlauf, gemäß einer der Erstreckungen des Wärmeverteilerelementes ist, z.B. in Richtung 90°, von einzelnen oder mehrfachen, parallelen, unter sich beabstandeten Wellen 3b oder Mäander überschnitten welche, gemäß der zweiten Erstreckung der Platte verlaufen. An den Schnittpunkten, zwischen den einzelnen Wellen 3a, 3b oder Mäander, sind freie Durchlässe, nach Art eines Kreuzgewölbes C, vorgesehen, wodurch der freie Durchfluss des Dampfes, bzw. der kondensierten Flüssigkeit, und deren schnelle Verteilung innerhalb des ganzen Wärmeverteilerelementes, sichergestellt ist. Längs der umlaufenden Ränder des Wärmeverteilerelementes ist der gewellte Deckel abgeflacht damit er an der flachen Oberfläche des Bodens 1 aufliegt um mit diesem dicht verbunden zu werden. Die Befestigung zwischen Boden 2 und Deckel 3 erfolgt weiters an Punkten D oder über Strecken entlang der Kontaktlinien zwischen den Tälern der Wellen oder Mäander 3a, 3b und dem Boden 2, z.B. mittels Punktschweißung. Zwecks Schaffung von Befestigungsbereichen oder -punkten zwischen dem Boden 2 und dem Deckel 3, kann letzterer abgeflachte Bereiche 5 aufweisen welche Verbindungen, z.B. Schweißverbindungen mit durchgehenden Bohrungen oder mit außenliegenden Befestigungselementen für die Befestigung des Wärmeverteilerelementes 1, z.B. an einer tragenden Struktur, aufweisen.The so-called "steam chamber" of the
Erfindungsgemäß kann der Deckel 3 auch flache Bereiche aufweisen, welche an gewellte Bereiche des Bodens 2 angebracht sind, und die gewellten Bereiche des Deckels können an, ebenfalls gewellte, Bereiche des Bodens 2 befestigt werden. Die Wahl der gewellten oder flachen Strukturierung erfolgt, aufgrund der erforderlichen Bedingungen des Wärmeaustausches, an den besagten Bereichen.According to the invention, the
Die Schicht 4 mit Kapillarwirkung kann sich durchgehend erstrecken, mit Unterbrechungen nur an den Verbindungspunkten oder -bereichen D zwischen Boden 2 und Deckel 3, oder kann aus einem Netz mit Kapillarwirkung bestehen, es wird nicht der Einsatz von Streifen oder Bündel aus Werkstoff mit Kapillarwirkung ausgeschlossen, welche sich längs der, durch die Wellen 3a, 3b oder Mäander des Deckels 3 gebildeten Durchlässe erstrecken, es kann auch ein gesinterter Werkstoff mit Kapillarwirkung verwendet werden. Die besagten Elemente welche die Schicht 4 mit Kapillarwirkung bilden können unterbrochen werden und mit einer Vorrichtung 40 (
Die Wellen- oder Mäanderstruktur ermöglicht eine bogenförmige oder faltenförmige Verformung parallel zur Wellung 3a, gemäß dem Durchfluss A des Dampfes oder parallel zur Wellung 3b, gemäß dem Durchfluss B des Dampfes. Nur im Fall einer Verformung mit kleinem Biegeradius erfolgt eine teilweise Verengung der betroffenen Wellen 3a, 3b, jedenfalls ohne Unterbrechung des Dampfdurchflusses.The wave or meandering structure allows arcuate or crease-shaped deformation parallel to the
Die Anordnung des Verdampfungsbereiches, in Bezug zum Kondensierungsbereich des selben Wärmeverteilerelementes 1 an unterschiedlichen Niveaus und/oder an unterschiedlichen Anwinkelungen, kann erfindungsgemäß leicht, durch die obgenannten Verformungen einer einzigen Platte, bestehend aus Boden 2, Deckel 3 und Schicht 4, oder durch Trennung in zwei Platten K, E (
Die strukturellen Merkmale der Platte des erfindungsgemäßen Wärmeverteilerelementes 1 und somit der Verformbarkeit gemäß der Wellung 3a, 3b des Deckels, bzw. des Bodens 2, ermöglichen die Herstellung von Wärmeverteilerelemente beachtlicher Größe, wobei diese selbst unterschiedliche wellen- oder mäanderförmige Gestalten annehmen können um eine große Wärmeaustauschfläche mit oder ohne Durchzüge P, welche geeignet sind um einen höheren Wärmeaustausch (Kamineffekt) und somit einen intensiven Wärmeaustausch, zu erreichen.The structural features of the plate of the
Gemäß einer Weiterentwicklung des Erfindungsgedankens können die Platte 1 oder die Platten E, K des erfindungsgemäßen Wärmeverteilerelementes mit einer Abdeckung aus einem, eventuell transparentem und/oder wärmedämmendem, Werkstoff an einem Bereich oder an der gesamten Erstreckung versehen sein um in diesen Bereichen den Wärmeaustausch, die thermische Dispersion zu beeinflussen und/oder um die Wirkung der Sonneneinstrahlung zu nutzen, bzw. zu mindern.According to a further development of the inventive concept, the
Claims (10)
Applications Claiming Priority (1)
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ITUB2015A002826A ITUB20152826A1 (en) | 2015-07-21 | 2015-07-21 | HEAT SPREADER |
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EP3121546A1 true EP3121546A1 (en) | 2017-01-25 |
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Family Applications (1)
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EP16001557.4A Withdrawn EP3121546A1 (en) | 2015-07-21 | 2016-07-14 | Heat distributor element |
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IT (1) | ITUB20152826A1 (en) |
Cited By (1)
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CN114705071A (en) * | 2022-05-13 | 2022-07-05 | 华为技术有限公司 | Mobile terminal, temperature-uniforming plate and manufacturing method of temperature-uniforming plate |
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