WO2012069500A1 - Apparatus for cooling a heat source of a motor vehicle - Google Patents

Apparatus for cooling a heat source of a motor vehicle Download PDF

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Publication number
WO2012069500A1
WO2012069500A1 PCT/EP2011/070724 EP2011070724W WO2012069500A1 WO 2012069500 A1 WO2012069500 A1 WO 2012069500A1 EP 2011070724 W EP2011070724 W EP 2011070724W WO 2012069500 A1 WO2012069500 A1 WO 2012069500A1
Authority
WO
WIPO (PCT)
Prior art keywords
collecting
cooling fluid
heat sink
cooling
motor vehicle
Prior art date
Application number
PCT/EP2011/070724
Other languages
German (de)
French (fr)
Inventor
Hans-Georg Herrmann
Dieter Engelhardt
Lars Ludwig
Original Assignee
Behr Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Behr Gmbh & Co. Kg filed Critical Behr Gmbh & Co. Kg
Priority to US13/989,135 priority Critical patent/US20130248151A1/en
Priority to EP11785685.6A priority patent/EP2643881A1/en
Priority to CN201190000894.4U priority patent/CN203481340U/en
Publication of WO2012069500A1 publication Critical patent/WO2012069500A1/en

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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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00295—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for trim components, e.g. panels, dashboards, liners
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to a device for cooling a Wirmequeile of a motor vehicle.
  • WO 2009/146876 A1 discloses a device for cooling a vehicle battery.
  • the device has a heat sink, wherein the heat sink is designed as at least one extruded profile.
  • a collector for collecting or distributing the cooling fluid is arranged. It is an object of the invention to provide a device for cooling a heat source of a motor vehicle available, which consists of fewer parts and requires less space overall. This object is achieved by a device having the features of claim 1.
  • Advantageous embodiments are the subject of the dependent claims.
  • a device for cooling a heat source of a motor vehicle comprises a hollow heat sink, an inlet for introducing a cooling fluid, an outlet for discharging a cooling fluid, a first collecting area for collecting the introduced cooling fluid, a second collecting area for collecting the cooling fluid to be discharged and an insert for guiding the cooling fluid from the first to the second collection area.
  • the insert is designed as a separate part.
  • heat source is understood, for example, as a vehicle battery, in particular a lithium-ion battery, which delivers heat loss to the heat sink.
  • the heat sink is tubular, in particular as a flat tube having a first and a second end formed.
  • Such flat tubes are simple and inexpensive to produce.
  • they form a flat surface for connecting a heat source to the heat sink due to their "flat" side
  • the flat tube is preferably made of metal, in particular of aluminum or an aluminum alloy.
  • the flat tube is closed fluid-tight at both ends.
  • this is a separate closure element, for example made of plastic, which is materially connected to the heat sink, in particular glued.
  • the insert part is designed as a corrugated rib.
  • the corrugated fin individual sub-channels are formed so that the cooling fluid can be passed from the first to the second plenum.
  • the corrugated rib made of metal, in particular aluminum, is formed and materially connected to the flat tube or the heat sink, in particular soldered.
  • the individual sub-channels are not fluidly connected to each other.
  • the longitudinal extent of the insert part is at least partially smaller than the longitudinal extent of the heat sink, or of the flat tube, ie, the extension from the first to the second end.
  • the two collecting areas are formed by the shortened insert.
  • a plurality of inserts are arranged between the first and second collecting space. It can be provided, for example, that the cooling fluid flows from a first collecting space into an intermediate collecting space and then into the second collecting space.
  • a first insert part is arranged between the first collecting space and the intermediate collecting space
  • a second insert part is arranged between the intermediate collecting space and the second collecting space.
  • the channel guide can be to the width of the heat sink, in particular to the width of the flat tube, adapt.
  • the cooling fluid is a coolant of a cooling circuit.
  • the fluid may also be a refrigerant of a refrigeration circuit, wherein the heat sink is designed as an evaporator for the refrigerant.
  • a coolant is understood to mean a fluid carrying ions, in particular, but not necessarily, in the liquid phase, which undergoes substantially no phase change when the heat sink flows through.
  • FIG. 1 shows a detail of a device according to the invention for cooling a heat source of a motor vehicle.
  • FIG. 1 shows a section of a device 1 according to the invention for cooling a heat source of a motor vehicle.
  • a heat source for example, a vehicle battery, in particular a lithium-ion battery could be provided.
  • the heat sink 2 is formed according to the present embodiment as a flat metal tube.
  • the flat tube has an inlet 3 for introducing adefiuids and an outlet for discharging (not shown) of adefiuids.
  • the flat tube is closed in a fluid-tight manner by a closing element 7.
  • a first collecting space 4 is arranged for collecting or distributing the cooling fluid
  • a second collecting space (not shown) is arranged on the inflow side of the outlet.
  • an insert 5 designed as a corrugated fin is provided between the first and second plenum.
  • the corrugated rib is in this case arranged such that individual partial cans 5a are formed by the valleys of the corrugated fin, through which the cooling fluid flows from a first 4 to a second collecting space.
  • the first and second plenum and designed as a corrugated insert member 5 are disposed within the heat sink 2.
  • the insert part 5 is "shorter" than the flat tube .. Due to the shortened shape of the insert part, according to the invention the two collecting chambers are formed for collecting and distributing the cooling fluid
  • the cross section in the collecting space 4 is chosen such that a slightly accelerated flow is present.
  • the collecting space tapers upstream in cross-section corresponding to the outlets into the individual sub-channels 5a.
  • Such a triangular design of the collecting space ensures a better uniform distribution of the cooling fluid.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to an apparatus (1) for cooling a heat source of a motor vehicle, comprising a hollow heat sink (2), an inlet (3) for introducing a cooling fluid, an outlet for discharging a cooling fluid, a first collecting region (4) for collecting the introduced cooling fluid, a second collecting region for collecting the cooling fluid to be discharged, and an insert part (5) for guiding the cooling fluid from the first to the second collecting region, wherein the first and second collecting regions and the insert part are arranged within the heat sink.

Description

Vorrichtung zur Kühlung einer Wärmequelle  Device for cooling a heat source
eines Kraftfahrzeugs  of a motor vehicle
Die Erfindung betrifft eine Vorrichtung zur Kühlung einer Wirmequeile eines Kraftfahrzeugs. The invention relates to a device for cooling a Wirmequeile of a motor vehicle.
Die WO 2009/146876 A1 offenbart eine Vorrichtung zur Kühlung einer Fahr- zeugbatterie. Die Vorrichtung weist einen Kühlkörper auf, wobei der Kühlkörper als zumindest ein Strangpressprofil ausgebildet ist. An den jeweiligen Endseiten des zumindest einen Strangpressprofils ist ein Sammler zum Sammeln beziehungsweise Verteilen des Kühlfluids angeordnet. Es ist Aufgabe der Erfindung, eine Vorrichtung zur Kühlung einer Wärmequelle eines Kraftfahrzeugs zur Verfügung zu stellen, die aus weniger Einzelteilen besteht und insgesamt weniger Bauraum benötigt. Diese Aufgabe wird gelöst durch eine Vorrichtung mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche. In einem Grundgedanken der Erfindung weist eine Vorrichtung zur Kühlung einer Wärmequelle eines Kraftfahrzeugs einen hohlförmigen Kühlkörper, einen Einlass zum Einleiten eines Kühlfluids, einen Auslass zum Ausleiten eines Kühlfluids, einen ersten Sammelbereich zum Sammeln des eingeleiteten Kühlfluids, einen zweiten Sammelbereich zum Sammeln des auszuleitenden Kühlfluids und ein Einlegeteil zum Führen des Kühlfluids vom ersten zum zweiten Sammelbereich auf. Erfindungsgemäß ist nun vorgesehen, dass sowohl das Einlegeteil als auch der zumindest erste und zweite Sammelbereich innerhalb des Kühlkörpers angeordnet sind. Durch die Integration der Sammlerfunktion in den Kühlkörper kann der Bauraumbedarf reduziert werden. Infolgedessen kann ferner das Gewicht des Kühlkörpers reduziert werden. WO 2009/146876 A1 discloses a device for cooling a vehicle battery. The device has a heat sink, wherein the heat sink is designed as at least one extruded profile. At the respective end sides of the at least one extruded profile, a collector for collecting or distributing the cooling fluid is arranged. It is an object of the invention to provide a device for cooling a heat source of a motor vehicle available, which consists of fewer parts and requires less space overall. This object is achieved by a device having the features of claim 1. Advantageous embodiments are the subject of the dependent claims. In one aspect of the invention, a device for cooling a heat source of a motor vehicle comprises a hollow heat sink, an inlet for introducing a cooling fluid, an outlet for discharging a cooling fluid, a first collecting area for collecting the introduced cooling fluid, a second collecting area for collecting the cooling fluid to be discharged and an insert for guiding the cooling fluid from the first to the second collection area. According to the invention, it is now provided that both the insert part and the at least first and second collecting region are arranged inside the heat sink. By integrating the collector function in the heat sink, the space requirement can be reduced. As a result, furthermore, the weight of the heat sink can be reduced.
Bevorzugt ist erfindungsgemäß das Einlegeteil als separates Teil ausgebil- det. Preferably, according to the invention, the insert is designed as a separate part.
Erfindungsgemäß wird unter dem Merkmal „Wärmequelle" beispielsweise eine Fahrzeugbatterie, insbesondere eine Lithium-Ionen-Batterie, verstanden, die Verlustwärme an den Kühlkörper abgibt. According to the invention, the term "heat source" is understood, for example, as a vehicle battery, in particular a lithium-ion battery, which delivers heat loss to the heat sink.
In einer bevorzugten Ausführungsform ist der Kühlkörper rohrförmig, insbesondere als Flachrohr mit einem ersten und einem zweiten Ende, ausgebildet. Derartige Flachrohre sind einfach und kostengünstig herstellbar. Zudem bilden sie durch ihre„flächige" Seite eine ebene Fläche zur Anbindung einer Wärmequelle an den Kühlkörper. Das Flach rohr ist bevorzugt aus Metall, insbesondere aus Aluminium oder einer Aluminiumlegierung hergestellt. AI- ternativ ist es jedoch auch möglich, das Flachrohr als ein Extrusionsprofil aus Kunststoff darzustellen. In a preferred embodiment, the heat sink is tubular, in particular as a flat tube having a first and a second end formed. Such flat tubes are simple and inexpensive to produce. In addition, they form a flat surface for connecting a heat source to the heat sink due to their "flat" side The flat tube is preferably made of metal, in particular of aluminum or an aluminum alloy. However, it is also possible ternatively to represent the flat tube as an extrusion profile made of plastic.
Das Flachrohr ist an seinen beiden Enden fluiddicht verschlossen. Bevorzugt eignet sich dazu ein eigenes Verschlusselement, beispielsweise aus Kunststoff, das mit dem Kühlkörper stoffschlüssig verbunden, insbesondere verklebt ist. The flat tube is closed fluid-tight at both ends. Preferably, this is a separate closure element, for example made of plastic, which is materially connected to the heat sink, in particular glued.
In einer weiteren bevorzugten Ausführungsform ist das Einlegeteil als Well- rippe ausgebildet. Durch die Wellrippe werden einzelne Teilkanäle gebildet, so dass das Kühlfluid vom ersten zum zweiten Sammelraum geleitet werden kann. Bevorzugt ist die Wellrippe aus Metall, insbesondere Aluminium, ausgebildet und mit dem Flachrohr beziehungsweise dem Kühlkörper stoffschlüssig verbunden, insbesondere verlötet. Bevorzugt sind die einzelnen Teilkanäle fluidisch nicht miteinander verbunden. In a further preferred embodiment, the insert part is designed as a corrugated rib. By the corrugated fin individual sub-channels are formed so that the cooling fluid can be passed from the first to the second plenum. Preferably, the corrugated rib made of metal, in particular aluminum, is formed and materially connected to the flat tube or the heat sink, in particular soldered. Preferably, the individual sub-channels are not fluidly connected to each other.
In einer weiteren bevorzugten Ausführungsform ist die Längenausdehnung des Einlegeteils zumindest bereichsweise geringer als die Längenausdehnung des Kühlkörpers, beziehungsweise des Flachrohres, also die Ausdeh- nung von dem ersten zum zweiten Ende. Somit werden die beiden Sammelbereiche durch das verkürzte Einlegeteil gebildet. In a further preferred embodiment, the longitudinal extent of the insert part is at least partially smaller than the longitudinal extent of the heat sink, or of the flat tube, ie, the extension from the first to the second end. Thus, the two collecting areas are formed by the shortened insert.
In einer weiteren bevorzugten Ausführungsform sind zwischen dem ersten und zweiten Sammelraum mehrere Einlegeteile angeordnet. Es kann bei- spielsweise vorgesehen sein, dass das Kühlfluid von einem ersten Sammelraum in einen Zwischensammelraum und anschließend in den zweiten Sammelraum strömt. Hierbei ist zwischen dem ersten Sammelraum und dem Zwischensammelraum ein erstes Einlegeteil und zwischen dem Zwischensammelraum und dem zweiten Sammelraum ein zweites Einlegeteil ange- ordnet. Durch eine derartige Ausführungsform lässt sich die Kanalführung auf die Breite des Kühlkörpers, insbesondere auf die Breite des Flachrohrs, anpassen. In a further preferred embodiment, a plurality of inserts are arranged between the first and second collecting space. It can be provided, for example, that the cooling fluid flows from a first collecting space into an intermediate collecting space and then into the second collecting space. In this case, a first insert part is arranged between the first collecting space and the intermediate collecting space, and a second insert part is arranged between the intermediate collecting space and the second collecting space. By such an embodiment, the channel guide can be to the width of the heat sink, in particular to the width of the flat tube, adapt.
Durch ein geeignetes Einlegeteil oder durch geeignete Einlegeteile sind in bevorzugten Detailvarianten verschiedene Durchströmungsarten des Kühlkörpers denkbar (beispielsweise eine„I-Flow" Durchströmung (keine Umlen- kung des Kühlfluids), eine „U-Flow" Durchströmung (eine Umlenkung des Kühlfluids) oder eine„S-Flow" Durchströmung (zwei Umlenkungen des Kühlfluids)). Auch mehr als zwei Umlenkungen des Kühlfluids innerhalb des Kühlkörpers sind denkbar. By means of a suitable insert or by means of suitable inserts, different through-flow types of the heat sink are conceivable in preferred details (for example an "I-flow" flow (no deflection of the cooling fluid), a "U-flow" flow (a deflection of the cooling fluid) or a "S-flow" flow (two deflections of the cooling fluid).) More than two deflections of the cooling fluid within the cooling body are also conceivable.
Bei einer vorteilhaften Ausführungsform ist das Kühlfluid ein Kühlmittel eines Kühlkreislaufs. Alternativ oder ergänzend kann das Fluid auch ein Kältemittel eines Kältekreises sein, wobei der Kühlkörper als Verdampfer für das Kälte- mittel ausgebildet ist. Unter einem Kühlmittel wird nachfolgend ein wörmetragendes Fluid, insbesondere, aber nicht notwendig, in flüssiger Phase, verstanden, das bei Durchströmung des Kühlkörpers im Wesentlichen keinen Phasenwechsel vollzieht. Bei einem Kältemittel im Sinne der Erfindung findet im Regelfall eine Verdampfung des Kältemittels in dem Kühlkörper statt, wo- bei der Kühlkörper Bestandteil eines Kältekreises mit Verdichter, Gaskühler/Kondensator und Expansionsorgan ist. Der Kältekreis kann dabei insbesondere eine Klimaanlage des Fahrzeugs umfassen. In an advantageous embodiment, the cooling fluid is a coolant of a cooling circuit. Alternatively or additionally, the fluid may also be a refrigerant of a refrigeration circuit, wherein the heat sink is designed as an evaporator for the refrigerant. In the following, a coolant is understood to mean a fluid carrying ions, in particular, but not necessarily, in the liquid phase, which undergoes substantially no phase change when the heat sink flows through. With a refrigerant in the context of the invention, as a rule, evaporation of the refrigerant takes place in the heat sink, wherein the heat sink is part of a refrigeration circuit with compressor, gas cooler / condenser and expansion element. The cooling circuit may in particular include an air conditioning system of the vehicle.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Weitere wichtige Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden detaillierten Beschreibung in Verbindung mit den Ansprüchen und der Zeichnung. Nachfolgend wird ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zur Kühlung einer Wärmequelle eines Kraftfahrzeuges beschrieben und anhand der anliegenden Zeichnung näher erläutert. Further important features of the present invention will become apparent from the following detailed description taken in conjunction with the claims and the drawings. Hereinafter, a preferred embodiment of a device according to the invention for cooling a heat source of a motor vehicle will be described and explained in more detail with reference to the accompanying drawings.
Es zeigt: It shows:
Fig. 1 einen Ausschnitt einer erfindungsgemäßen Vorrichtung zur Kühlung einer Wärmequelle eines Kraftfahrzeugs; 1 shows a detail of a device according to the invention for cooling a heat source of a motor vehicle.
Fig. 1 zeigt einen Ausschnitt einer erfindungsgemäßen Vorrichtung 1 zur Kühlung einer Wärmequelle eines Kraftfahrzeugs. Als Wärmequelle (nicht dargestellt) könnte beispielsweise eine Fahrzeugbatterie, insbesondere eine Lithium-Ionen-Batterie, vorgesehen sein. 1 shows a section of a device 1 according to the invention for cooling a heat source of a motor vehicle. As a heat source (not shown), for example, a vehicle battery, in particular a lithium-ion battery could be provided.
Die Darstellung nach Fig. 1 zeigt einen Kühlkörper 2, auf dessen Oberseite 2a eine Vielzahl von zu kühlenden Batteriezellen einer Lithium-Ionen-Batterie angeordnet sind. Die Batterie ist beispielsweise mit dem Kühlkörper durch Spannbänder oder dergleichen verspannt, so dass ein guter wärmeleitender Kontakt zwischen der Batterie und dem Kühlkörper gegeben ist. Zusätzlich könnten noch wärmeleitende Folien oder Ähnliches zwischen dem Kühlkörper und der Batterie vorgesehen sein, um die Wärmeleitung weiter zu verbessern. Der Kühlkörper 2 ist gemäß vorliegender Ausführungsform als ein Flachrohr aus Metall ausgebildet. Das Flachrohr weist einen Einlass 3 zum Einleiten eines Kühlfiuids und einen Auslass zum Ausleiten (nicht dargestellt) eines Kühlfiuids auf. An seinen beiden Enden 6 ist das Flachrohr durch ein Verschlusselement 7 fluiddicht verschlossen. Abströmseitig des Einlasses 3 ist ein erster Sammelraum 4 zum Sammeln beziehungsweise Verteilen des Kühlfluids angeordnet, währenddessen zuströmseitig des Auslasses ein zweiter Sammelraum (nicht dargestellt) angeordnet ist. Zwischen dem ersten und zweiten Sammelraum ist nun erfin- dungsgemäß ein als Wellrippe ausgebildetes Einlegeteil 5 vorgesehen. Die Wellrippe ist hierbei derart angeordnet, dass durch die Täler der Wellrippe einzelne Teilkanäfe 5a gebildet werden, durch die das Kühlfluid von einem ersten 4 zu einem zweiten Sammelraum strömt. Erfindungsgemäß sind somit der erste und zweite Sammelraum und das als Wellrippe ausgebildete Einlegeteil 5 innerhalb des Kühlkörpers 2 angeordnet. Ferner ist das Einlegeteil 5„kürzer" ausgebildet als das Flachrohr. Durch die verkürzte Form des Einlegeteils werden erfindungsgemäß die beiden Sammelräume zum Sammeln und Verteilen des Kühlfluids gebildet 1 shows a heat sink 2, on the upper side 2a of which a plurality of battery cells to be cooled of a lithium-ion battery are arranged. The battery is clamped, for example, with the heat sink by tension bands or the like, so that a good heat-conducting contact between the battery and the heat sink is given. In addition, thermally conductive foils or the like could be provided between the heat sink and the battery to further improve the heat conduction. The heat sink 2 is formed according to the present embodiment as a flat metal tube. The flat tube has an inlet 3 for introducing a Kühlfiuids and an outlet for discharging (not shown) of a Kühlfiuids. At its two ends 6, the flat tube is closed in a fluid-tight manner by a closing element 7. On the outflow side of the inlet 3, a first collecting space 4 is arranged for collecting or distributing the cooling fluid, while a second collecting space (not shown) is arranged on the inflow side of the outlet. According to the invention, an insert 5 designed as a corrugated fin is provided between the first and second plenum. The corrugated rib is in this case arranged such that individual partial cans 5a are formed by the valleys of the corrugated fin, through which the cooling fluid flows from a first 4 to a second collecting space. According to the invention thus the first and second plenum and designed as a corrugated insert member 5 are disposed within the heat sink 2. Furthermore, the insert part 5 is "shorter" than the flat tube .. Due to the shortened shape of the insert part, according to the invention the two collecting chambers are formed for collecting and distributing the cooling fluid
Wie aus Fig. 1 für den Fachmann leicht ersichtlich, ist der Querschnitt im Sammelraum 4 derart gewählt, dass eine leicht beschleunigte Strömung vorliegt. Hierzu verjüngt sich der Sammelraum im Querschnitt stromaufwärts entsprechend den Abgängen in die einzelnen Teilkanäle 5a. Durch eine der- artige dreieckförmige Gestaltung des Sammelraums wird eine bessere Gleichverteilung des Kühlfluids gewährleistet. As can readily be seen by the person skilled in the art from FIG. 1, the cross section in the collecting space 4 is chosen such that a slightly accelerated flow is present. For this purpose, the collecting space tapers upstream in cross-section corresponding to the outlets into the individual sub-channels 5a. Such a triangular design of the collecting space ensures a better uniform distribution of the cooling fluid.

Claims

P a t e n t a n s p r ü c h e P a t e n t a n s r ü c h e
Vorrichtung (1) zur Kühlung einer Wärmequelle eines Kraftfahrzeugs, umfassend einen hohlförmigen Kühlkörper Device (1) for cooling a heat source of a motor vehicle, comprising a hollow-shaped heat sink
(2), einen Einlass (2), an inlet
(3) zum Einleiten eines Kühlfluids, einen Auslass zum Ausleiten eines Kühlfluids, einen ersten Sammelbereich (3) for introducing a cooling fluid, an outlet for discharging a cooling fluid, a first collection area
(4) zum Sammeln des eingeleiteten Kühlfluids, einen zweiten Sammelbereich zum Sammeln des auszuleitenden Kühlfluids, ein Einlegeteil (5) zum Führen des Kühlfluids vom ersten zum zweiten Sammelbereich, wobei der erste und zweite Sammelbereich und das Einlegeteil innerhalb des Kühlkörpers angeordnet sind. (4) for collecting the introduced cooling fluid, a second collecting area for collecting the cooling fluid to be discharged, an insert part (5) for guiding the cooling fluid from the first to the second collecting area, the first and second collecting area and the insert part being arranged within the heat sink.
Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass der Kühlkörper (2) rohrförmig, insbesondere als Flach röhr (2) mit einem ersten und einem zweiten Ende (6), ausgebildet ist. Device according to claim 1, characterized in that the heat sink (2) is tubular, in particular as a flat tube (2) with a first and a second end (6).
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Einlegeteil (5) zumindest bereichsweise eine geringere Längenausdehnung aufweist als der Kühlkörper (2). Device according to claim 1 or 2, characterized in that the insert part (5) has, at least in some areas, a smaller linear extension than the heat sink (2).
Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Einlegeteil Device according to one of the preceding claims, characterized in that the insert
(5) als Wellrippe ausgebildet ist. (5) is designed as a corrugated rib.
Vorrichtung nach einem der vorhergehenden Ansprüche, insbesondere nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die beiden Enden (6) jeweils durch ein Verschlusselement (7) fluiddicht verschlossen sind. Device according to one of the preceding claims, in particular according to one of claims 2 to 4, characterized in that the two ends (6) are each closed in a fluid-tight manner by a closure element (7).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Verschlusselement (7) aus Kunststoff besteht, 6. Device according to claim 5, characterized in that the closure element (7) consists of plastic,
7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mehrere Einlegeteile (5) zwischen dem ersten und zweiten Sammelraum vorgesehen sind. 7. Device according to one of the preceding claims, characterized in that a plurality of insert parts (5) are provided between the first and second collecting spaces.
PCT/EP2011/070724 2010-11-23 2011-11-22 Apparatus for cooling a heat source of a motor vehicle WO2012069500A1 (en)

Priority Applications (3)

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US13/989,135 US20130248151A1 (en) 2010-11-23 2011-11-22 Apparatus for cooling a heat source of a motor vehicle
EP11785685.6A EP2643881A1 (en) 2010-11-23 2011-11-22 Apparatus for cooling a heat source of a motor vehicle
CN201190000894.4U CN203481340U (en) 2010-11-23 2011-11-22 Device for cooling heat source of motor vehicle

Applications Claiming Priority (2)

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DE102010061768.7 2010-11-23
DE201010061768 DE102010061768A1 (en) 2010-11-23 2010-11-23 Device for cooling a heat source of a motor vehicle

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EP (1) EP2643881A1 (en)
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WO (1) WO2012069500A1 (en)

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CN108321455A (en) * 2017-01-18 2018-07-24 盾安环境技术有限公司 Power battery heat exchanger and power battery assembly

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US20130248151A1 (en) 2013-09-26
EP2643881A1 (en) 2013-10-02
CN203481340U (en) 2014-03-12
DE102010061768A1 (en) 2012-05-24

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