DE102014204263B4 - Battery cooling system - Google Patents
Battery cooling system Download PDFInfo
- Publication number
- DE102014204263B4 DE102014204263B4 DE102014204263.1A DE102014204263A DE102014204263B4 DE 102014204263 B4 DE102014204263 B4 DE 102014204263B4 DE 102014204263 A DE102014204263 A DE 102014204263A DE 102014204263 B4 DE102014204263 B4 DE 102014204263B4
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- Germany
- Prior art keywords
- cooling
- cooling plate
- battery
- plate
- cooling system
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- 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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- 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
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- 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
- H01M10/6554—Rods or plates
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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- 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
-
- 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
-
- 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
Abstract
Batteriekühlsystem, umfassend eine Kühlplatte (1) zur Kühlung von nahe der Kühlplatte (1) angeordneten Batteriezellen (2), wobei ein Kühlfluid in der Kühlplatte (1) verwendet wird, dadurch gekennzeichnet, dass das Kühlfluid Kohlendioxid ist, wobei das Kohlendioxid unter einem Druck von bis zu 60 bar steht und zur Kühlung das Kohlendioxid in der Kühlplatte (1) verdampft, wobei die Kühlplatte (1) eine hohe Festigkeit aufweist, um diesem Druck stand zu halten, wobei die Kühlplatte (1) so ausgelegt ist, dass sie bei starker mechanischer und/oder thermischer Belastung an der Stelle der mechanischen und/oder thermischen Belastung das Kühlfluid freisetzt.Battery cooling system, comprising a cooling plate (1) for cooling battery cells (2) arranged near the cooling plate (1), a cooling fluid being used in the cooling plate (1), characterized in that the cooling fluid is carbon dioxide, the carbon dioxide being under pressure of up to 60 bar and the carbon dioxide evaporates in the cooling plate (1) for cooling, the cooling plate (1) having a high degree of strength in order to withstand this pressure, the cooling plate (1) being designed in such a way that it can withstand strong mechanical and / or thermal load releases the cooling fluid at the point of mechanical and / or thermal load.
Description
Gebiet der ErfindungField of invention
Die vorliegende Erfindung betrifft ein Batteriekühlsystem, umfassend eine Kühlplatte zur Kühlung von nahe der Kühlplatte angeordneten Batteriezellen. Weiters betrifft die Erfindung ein Fahrzeug mit einem solchen Batteriekühlsystem.The present invention relates to a battery cooling system, comprising a cooling plate for cooling battery cells arranged close to the cooling plate. The invention also relates to a vehicle with such a battery cooling system.
Stand der TechnikState of the art
Batteriekühlsysteme, umfassend eine Kühlplatte zur Kühlung von nahe der Kühlplatte angeordneten Batteriezellen, werden bekannter Weise verwendet um beispielsweise Batteriezellen einer Antriebsbatterie eines Elektro- oder Hybridfahrzeuges im Betrieb kühlen zu können. Zur Kühlung können Kühlplatten verwendet werden die von einer Kühlflüssigkeit durchströmt werden um die im Betrieb entstehende Wärme von den Bat- teriezellen abzuführen.Battery cooling systems, comprising a cooling plate for cooling battery cells arranged close to the cooling plate, are used in a known manner in order, for example, to be able to cool battery cells of a drive battery of an electric or hybrid vehicle during operation. For cooling, cooling plates can be used through which a cooling liquid flows in order to dissipate the heat generated during operation from the battery cells.
Aus der
Aus der
Nachteilig ist jedoch das die Notfallöffnung über ein Betätigungselement in einem Notfall gezielt geöffnet werden muss. Dies kann elektronisch gesteuert erfolgen, wobei dann eine Detektierung des Zustandes erforderlich ist und eine entsprechend aufwändige Elektronik, oder thermisch gesteuert, wobei es dann nur zu einer Öffnung der Notfallöffnung kommt wenn die erhöhte Temperatur in unmittelbarer Nähe des Betätigungselements auftritt.However, it is disadvantageous that the emergency opening has to be opened in a targeted manner via an actuating element in an emergency. This can be done electronically controlled, in which case a detection of the state is required and correspondingly complex electronics, or thermally controlled, in which case the emergency opening only opens when the increased temperature occurs in the immediate vicinity of the actuating element.
Löschvorrichtungen für Batterien sind auch aus der
Zusammenfassung der ErfindungSummary of the invention
Es ist eine Aufgabe der Erfindung, ein Batteriekühlsystem anzugeben, das einfach und kostengünstig aufgebaut ist und in einem Notfall zuverlässig einen Brand der Batterie vermeiden oder bekämpfen kann.It is an object of the invention to specify a battery cooling system which is of simple and inexpensive construction and which can reliably avoid or fight a fire in the battery in an emergency.
Die Lösung der Aufgabe erfolgt durch ein Batteriekühlsystem, umfassend eine Kühlplatte zur Kühlung von nahe der Kühlplatte angeordneten Batteriezellen, wobei ein Kühlfluid in der Kühlplatte verwendet wird, wobei das Kühlfluid Kohlendioxid ist, wobei zur Kühlung das Kohlendioxid in der Kühlplatte verdampft, wobei die Kühlplatte eine hohe Festigkeit aufweist, um diesem Druck stand zu halten, wobei die Kühlplatte so ausgelegt ist, dass sie bei starker mechanischer und/oder thermischer Belastung an der Stelle der mechanischen und/oder thermischen Belastung das Kühlfluid freisetzt.The object is achieved by a battery cooling system, comprising a cooling plate for cooling battery cells arranged near the cooling plate, a cooling fluid being used in the cooling plate, the cooling fluid being carbon dioxide, the carbon dioxide evaporating in the cooling plate for cooling, the cooling plate being a has high strength in order to withstand this pressure, wherein the cooling plate is designed so that it releases the cooling fluid at the point of mechanical and / or thermal stress in the event of strong mechanical and / or thermal stress.
Erfindungsgemäß wird ein Kühlfluid in der Kühlplatte verwendet, dass gleichzeitig in einem Notfall als Löschmittel verwendet werden kann, wobei das Freisetzen des Löschmittels unmittelbar an der Kühlplatte geschieht. Die Kühlplatte wird also zusätzlich zu ihrer normalen Kühlfunktion auch als Vorrichtung zur Freigabe des Löschmittels genutzt.According to the invention, a cooling fluid is used in the cooling plate that can simultaneously be used as an extinguishing agent in an emergency, with the extinguishing agent being released directly on the cooling plate. In addition to its normal cooling function, the cooling plate is also used as a device for releasing the extinguishing agent.
Das Kühlfluid weist dazu brandhemmende Eigenschaften aus, kann also insbesondere nichtbrennbar und sauerstoffverdrängend sein, wie beispielsweise Kohlendioxid (CO2).For this purpose, the cooling fluid has fire-retardant properties, so it can in particular be non-combustible and displace oxygen, such as carbon dioxide (CO2).
Die Kühlplatte muss so ausgebildet sein, dass sie bei mechanischer und/oder thermischer Belastung eine Öffnung freigibt, die das Entweichen des Kühlfluids aus der Kühlplatte zur Brandvermeidung bzw. - bekämpfung ermöglicht.The cooling plate must be designed in such a way that, in the event of mechanical and / or thermal stress, it releases an opening which enables the cooling fluid to escape from the cooling plate in order to avoid or fight fires.
Erfindungsgemäß ist das Kühlfluid Kohlendioxid (CO2), da dieses auch ausgezeichnete Eigenschaften zur Brandbekämpfung aufweist.According to the invention, the cooling fluid is carbon dioxide (CO2), since this also has excellent fire fighting properties.
Zur Kühlung der Batteriezellen wird das Kohlendioxid in der Kühlplatte verdampft. Die Kühlplatte weist eine hohe Festigkeit auf um auch höheren Drücken, zum Beispiel bis zu 60 bar, standzuhalten.To cool the battery cells, the carbon dioxide is evaporated in the cooling plate. The cooling plate has a high strength to withstand higher pressures, for example up to 60 bar.
Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen, der Beschreibung sowie de beigefügten Zeichnung angegeben.Developments of the invention are given in the dependent claims, the description and the accompanying drawings.
Besonders bevorzugt weist die Kühlplatte mindestens eine Sollbruchstelle auf, die bei mechanischer und/oder thermischer Belastung öffnet.The cooling plate particularly preferably has at least one predetermined breaking point, which opens in the event of mechanical and / or thermal stress.
Die Sollbruchstelle öffnet bei Belastung bevorzugt zumindest auf eine den Batteriezellen zugewandte Seite der Kühlplatte hin. Die Sollbruchstelle kann dazu auf der den Batteriezellen zugewandten Seite der Kühlplatte angeordnet sein. Das Kühlfluid kann dadurch im Schadensfall gut zu den Batteriezellen gelangen.When loaded, the predetermined breaking point preferably opens at least on a side of the cooling plate facing the battery cells. The predetermined breaking point can for this purpose be arranged on the side of the cooling plate facing the battery cells. This means that the cooling fluid can easily reach the battery cells in the event of damage.
Die Kühlplatte und die Batteriezellen sind bevorzugt in einem Batteriegehäuse angeordnet und die Sollbruchstelle liegt im Inneren des Batteriegehäuses.The cooling plate and the battery cells are preferably arranged in a battery housing and the predetermined breaking point is inside the battery housing.
Bevorzugt öffnet dann die Sollbruchstelle bei mechanischer und/oder thermischer Belastung in einen Freiraum im Inneren des Batteriegehäuses, so dass das Kühlfluid im Inneren des Gehäuses direkt zu den Batteriezellen geleitet wird.In the event of mechanical and / or thermal loading, the predetermined breaking point then preferably opens into a free space in the interior of the battery housing, so that the cooling fluid in the interior of the housing is conducted directly to the battery cells.
Besonders vorteilhaft weist die Kühlplatte eine Vielzahl solcher Sollbruchstellen auf. Die Sollbruchstellen können insbesondere über die Fläche der Kühlplatte bzw. die Erstreckung der Batteriezellen an dieser Fläche verteilt sein, so dass alle Batteriezellen gut erreicht werden können. Dabei kann, insbesondere wenn die Sollbruchstellen ähnliche Brucheigenschaften aufweisen, eine Sollbruchstelle in der Nähe der höchsten Hitze bzw. mechanischen Belastung als Erste oder Einzige öffnen, so dass die Brandbekämpfung gezielt an der Stelle der höchsten Gefährdung erfolgt.The cooling plate particularly advantageously has a large number of such predetermined breaking points. The predetermined breaking points can in particular be distributed over the surface of the cooling plate or the extension of the battery cells on this surface, so that all battery cells can be easily reached. In this case, especially if the predetermined breaking points have similar breaking properties, a predetermined breaking point in the vicinity of the highest heat or mechanical load can be the first or only one to open, so that the fire fighting takes place specifically at the point of greatest danger.
Eine Freisetzung des Kühlfluids bei mechanischer und/oder thermischer Belastung der Kühlplatte kann ausschließlich über die Kühlplatte erfolgen. Die Verwendung weiterer Ventile, Öffnungen und/oder Betätigungseinrichtungen ist daher nicht erforderlich.A release of the cooling fluid in the event of mechanical and / or thermal loading of the cooling plate can only take place via the cooling plate. The use of further valves, openings and / or actuating devices is therefore not necessary.
Bevorzugt besteht die Kühlplatte aus Kunststoff.The cooling plate is preferably made of plastic.
Besonders bevorzugt besteht die Kühlplatte aus mehreren miteinander verklebten Kunststoffteilen.The cooling plate particularly preferably consists of several plastic parts glued to one another.
Die einzelnen Kunststoffteile können in Spritzgussbauweise gefertigt sein.The individual plastic parts can be manufactured using an injection molding method.
Die Kühlplatte ist bevorzugt elektrisch isolierend.The cooling plate is preferably electrically insulating.
Ein erfindungsgemäßes Batteriekühlsystem kann bevorzugt in einem Fahrzeug eingesetzt werden, insbesondere in einem Fahrzeug mit einer Klimatisierungseinrichtung für den Innenraum des Fahrzeuges.A battery cooling system according to the invention can preferably be used in a vehicle, in particular in a vehicle with an air conditioning device for the interior of the vehicle.
Dann kann das Kühlfluid, welches in der Kühlplatte verwendet wird, das Klimatisierungsfluid der Klimatisierungseinrichtung sein, insbesondere Kohlendioxid.The cooling fluid that is used in the cooling plate can then be the air conditioning fluid of the air conditioning device, in particular carbon dioxide.
FigurenlisteFigure list
Die Erfindung wird im Folgenden beispielhaft unter Bezugnahme auf die Zeichnung beschrieben.
- Fig. ist eine schematische Darstellung eines erfindungsgemäßen Batteriekühlsystems.
- Fig. 3 is a schematic representation of a battery cooling system according to the invention.
Detaillierte Beschreibung der ErfindungDetailed description of the invention
In der Fig. ist ein erfindungsgemäßes Batteriekühlsystem dargestellt, umfassend eine Kühlplatte
In einem Fehlerfall, insbesondere wenn eine Batteriezelle
Das Kühlfluid wird in die Kühlplatte
BezugszeichenlisteList of reference symbols
- 11
- KühlplatteCooling plate
- 22
- BatteriezelleBattery cell
- 33
- SollbruchstellePredetermined breaking point
- 44th
- BatteriegehäuseBattery case
- 55
- ZulaufIntake
- 66th
- Ablaufprocedure
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014204263.1A DE102014204263B4 (en) | 2014-03-07 | 2014-03-07 | Battery cooling system |
Applications Claiming Priority (1)
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DE102014204263.1A DE102014204263B4 (en) | 2014-03-07 | 2014-03-07 | Battery cooling system |
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DE102014204263A1 DE102014204263A1 (en) | 2015-09-10 |
DE102014204263B4 true DE102014204263B4 (en) | 2021-07-08 |
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DE102014204263.1A Active DE102014204263B4 (en) | 2014-03-07 | 2014-03-07 | Battery cooling system |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015119193A1 (en) * | 2015-11-07 | 2017-05-11 | Terex MHPS IP Management GmbH | Battery module for a traction drive and transport vehicle hereby |
DE102017116981A1 (en) * | 2017-07-27 | 2019-01-31 | Lion Smart Gmbh | Temperature control device for a temperature control of a battery system, battery system and method for tempering and / or extinguishing a battery system |
DE102017214881A1 (en) | 2017-08-25 | 2019-02-28 | Audi Ag | System for fixing cooling elements |
DE102018132177A1 (en) * | 2018-12-13 | 2020-06-18 | Webasto SE | Temperature control system |
DE102018221942A1 (en) * | 2018-12-17 | 2020-06-18 | Robert Bosch Gmbh | Cell housing with extinguishing effect |
DE102020133002A1 (en) | 2020-12-10 | 2022-06-15 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery cooling system with extinguishing function |
DE102021203945A1 (en) | 2021-04-21 | 2022-10-27 | Mahle International Gmbh | Temperature control device for an energy store |
Citations (5)
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JPH09259940A (en) | 1996-03-26 | 1997-10-03 | Nissan Motor Co Ltd | Battery pack for electric vehicle |
DE10123178A1 (en) | 2001-05-12 | 2002-11-14 | Daimler Chrysler Ag | Method for lowering the temperature in the passenger compartment of a motor vehicle, involves setting of the target temperature level much lower than its normal value |
DE102008059968A1 (en) | 2008-12-02 | 2010-06-10 | Daimler Ag | Method for operation of lithium ion battery of motor vehicle, involves fluidically connecting inner space of battery with refrigerant circuit of battery by emergency line, and guiding refrigerant from refrigerant circuit into inner space |
DE102008059948A1 (en) | 2008-12-02 | 2010-06-17 | Behr Gmbh & Co. Kg | Method for preventing and/or fighting fire in lithium-ion battery of motor vehicle, involves temporarily introducing fire extinguishing agent from agent storage into battery interior for fire prevention and/or fire-fighting |
DE102012215736A1 (en) | 2012-09-05 | 2013-07-25 | Continental Automotive Gmbh | Cooling device for energy storage device used in motor vehicle e.g. hybrid car, has canceler that is arranged such that outflow of coolant from coolant channel is enabled based on predetermined condition |
-
2014
- 2014-03-07 DE DE102014204263.1A patent/DE102014204263B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09259940A (en) | 1996-03-26 | 1997-10-03 | Nissan Motor Co Ltd | Battery pack for electric vehicle |
DE10123178A1 (en) | 2001-05-12 | 2002-11-14 | Daimler Chrysler Ag | Method for lowering the temperature in the passenger compartment of a motor vehicle, involves setting of the target temperature level much lower than its normal value |
DE102008059968A1 (en) | 2008-12-02 | 2010-06-10 | Daimler Ag | Method for operation of lithium ion battery of motor vehicle, involves fluidically connecting inner space of battery with refrigerant circuit of battery by emergency line, and guiding refrigerant from refrigerant circuit into inner space |
DE102008059948A1 (en) | 2008-12-02 | 2010-06-17 | Behr Gmbh & Co. Kg | Method for preventing and/or fighting fire in lithium-ion battery of motor vehicle, involves temporarily introducing fire extinguishing agent from agent storage into battery interior for fire prevention and/or fire-fighting |
DE102012215736A1 (en) | 2012-09-05 | 2013-07-25 | Continental Automotive Gmbh | Cooling device for energy storage device used in motor vehicle e.g. hybrid car, has canceler that is arranged such that outflow of coolant from coolant channel is enabled based on predetermined condition |
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