DE102012012663A1 - Housing for carrying and cooling lithium ion battery pack for drive of electric vehicle, has separation body arranged between operating device and trough, where body and trough limit intermediate space to guide coolant in flow-proof design - Google Patents
Housing for carrying and cooling lithium ion battery pack for drive of electric vehicle, has separation body arranged between operating device and trough, where body and trough limit intermediate space to guide coolant in flow-proof design Download PDFInfo
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- DE102012012663A1 DE102012012663A1 DE201210012663 DE102012012663A DE102012012663A1 DE 102012012663 A1 DE102012012663 A1 DE 102012012663A1 DE 201210012663 DE201210012663 DE 201210012663 DE 102012012663 A DE102012012663 A DE 102012012663A DE 102012012663 A1 DE102012012663 A1 DE 102012012663A1
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
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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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
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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
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- 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
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
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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
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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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/229—Composite material consisting of a mixture of organic and inorganic materials
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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
- H01M10/61—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
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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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- 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
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- General Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Description
Die Erfindung betrifft ein Gehäuse für eine zu tragende und zu kühlende Betriebseinrichtung, insbesondere für ein Batteriepaket aus mindestens einer Batteriezelle, beispielsweise eine Fahrzeugantriebsbatterie. Das Gehäuse besteht aus einem die Betriebseinrichtung aufnehmenden Trog und einem den Trog schließenden Deckel.The invention relates to a housing for an operating device to be supported and cooled, in particular for a battery pack comprising at least one battery cell, for example a vehicle drive battery. The housing consists of a device receiving the trough and a trough closing the lid.
Ein gattungsgemäßes Gehäuse zur Aufnahme eines Batteriepakets ist aus der Druckschrift
Weiterhin zeigen die Druckschriften
Eine Batteriezelle ist als eine saubere, effiziente und umweltfreundliche Energiequelle für Elektrofahrzeuge und verschiedene Anwendungen vorgeschlagen worden. Ein Typ von Batteriezellen ist als die Lithiumionenbatterie bekannt. Diese ist wiederaufladbar und kann in eine breite Vielzahl von Formen und Größen geformt werden, um so effizient verfügbaren Raum in Elektrofahrzeugen zu füllen. Eine Mehrzahl einzelner Lithiumionenbatteriezellen kann in einem Batteriepaket vorgesehen werden, um einen Leistungsbetrag bereitzustellen, der zum Betrieb von Elektrofahrzeugen ausreichend ist.A battery cell has been proposed as a clean, efficient and environmentally friendly power source for electric vehicles and various applications. One type of battery cell is known as the lithium ion battery. This is rechargeable and can be molded into a wide variety of shapes and sizes to efficiently fill available space in electric vehicles. A plurality of individual lithium-ion battery cells may be provided in a battery pack to provide a power amount sufficient for operating electric vehicles.
Von Lithiumionenbatterien ist es bekannt, dass sie während des Betriebs und infolge eines Ladezyklus beim Wiederaufladen Wärme erzeugen. Im überhitzten Zustand oder wenn sie anderweitig Hochtemperaturumgebungen ausgesetzt sind, können unerwünschte Wirkungen den Betrieb der Lithiumionenbatterien beeinträchtigen. Typischerweise werden Lithiumionenbatteriepakete mit Kühlsystemen verwendet, um den unerwünschten Überhitzungszuständen entgegenzuwirken.Lithium ion batteries are known to generate heat during operation and as a result of a recharge cycle. When overheated or otherwise exposed to high temperature environments, undesirable effects may affect the operation of lithium ion batteries. Typically, lithium ion battery packs with cooling systems are used to counteract the undesirable overheating conditions.
Kühlsysteme nach dem Stand der Technik haben eine indirekte Flüssigkeitskühlung und -erwärmung der Lithiumionenbatteriepakete durch Kontakt mit Kühlplatten, durch die flüssiges Kühlmittel läuft, bereitgestellt. Jedoch ist es von Kühlsystemen nach dem Stand der Technik bekannt, dass sie komplizierte Komponenten, eine unerwünscht hohe Anzahl von Leckagepfaden, komplizierte und nicht robuste Kühlpfade, eine hohe Anzahl von Dichtungen einschließlich Nicht-Standard-Dichtverbindungen und ein Gewicht und Volumen aufweisen, das für Elektrofahrzeuganwendungen unerwünscht hoch ist.Prior art cooling systems have provided indirect liquid cooling and heating of the lithium ion battery packs by contact with cold plates through which liquid coolant passes. However, prior art cooling systems are known to have complicated components, an undesirably high number of leakage paths, complicated and non-robust cooling paths, a high number of seals including non-standard sealing connections, and a weight and volume suitable for Electric vehicle applications is undesirably high.
Es existiert ein fortwährender Bedarf nach einem Kühlsystem für ein Batteriepaket, das robust ist und eine minimierte Anzahl von Komponenten, eine minimierte Masse sowie ein minimiertes Volumen und einen vereinfachten Herstellprozess aufweist. Ein Gehäuse soll das Batteriepaket im Betrieb schützen und einen einfachen Austausch einzelner Batteriezellen des Batteriepakets ermöglichen.There is a continuing need for a cooling system for a battery pack that is rugged and has a minimized number of components, a minimized mass, and a minimized volume and manufacturing process. A housing is intended to protect the battery pack during operation and to enable easy replacement of individual battery cells of the battery pack.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein Gehäuse der eingangs genannten Art zu schaffen, das einen einfachen Aufbau aufweist und für eine Betriebseinrichtung, wie ein Batteriepaket, eine Kühleinrichtung bereitstellt, wobei das die Kühleinrichtung umfassende Gehäuse robust ist und eine minimierte Anzahl von Komponenten, eine minimierte Masse und ein minimiertes Volumen sowie einen vereinfachten Herstellprozess aufweist und das Batteriepaket im Betrieb sowohl schützt als auch einen einfachen Austausch einzelner Batteriezellen des Batteriepakets ermöglicht.Against this background, the invention has the object to provide a housing of the type mentioned above, which has a simple structure and provides for an operating device, such as a battery pack, a cooling device, wherein the housing comprising the cooling device is robust and a minimized number of Components, a minimized mass and a minimized volume and a simplified manufacturing process and the battery pack in operation both protects and allows easy replacement of individual battery cells of the battery pack.
Diese Aufgabe wird gelöst mit einem Gehäuse gemäß den Merkmalen des Patentanspruchs 1. Die Unteransprüche betreffen besonders zweckmäßige Weiterbildungen der Erfindung.This object is achieved with a housing according to the features of
Erfindungsgemäß ist ein Gehäuse als Tragstruktur für die Betriebseinrichtung vorgesehen, bei dem durch eine Ergänzung eines Trennkörpers als ein einfaches und zugleich kostengünstiges Bauteil das Gehäuse auch die Funktion einer Kühleinrichtung übernimmt. Durch die erfindungsgemäße Ausgestaltung wird ein Gehäuse bereitgestellt, das aus wenigen Einzelteilen besteht und somit kompakt, leicht und einfach herzustellen ist. Die geringe Anzahl an Bauteilen zeigt sich beispielsweise in einem Ausführungsbeispiel, bei dem das Gehäuse aus nur drei Bauteilen besteht – einem einteilig gefertigten Trog, einem Deckel für diesen Trog und einem in dem Trog angeordneten Trennkörper. Gerade dieser einfache Aufbau stellt überraschend eine Kühleinrichtung für eine Betriebseinrichtung bereit, die robust ist und eine minimierte Anzahl von Komponenten, eine minimierte Masse und ein minimiertes Volumen sowie einen vereinfachten Herstellungsprozess aufweist und dessen Gehäuse die Betriebseinrichtung schützt und einen einfachen Zugriff auf die Betriebseinrichtung für Wartung und Austausch ermöglicht. Letzteres ist insbesondere bei einem Batteriepaket als Betriebseinrichtung vorteilhaft. Die erfindungsgemäße Ausgestaltung ermöglicht einen einfachen Austausch des Batteriepakets oder einzelner Batteriezellen des Batteriepakets.According to the invention, a housing is provided as a support structure for the operating device, in which the housing also performs the function of a cooling device by supplementing a separating body as a simple and at the same time cost-effective component. The embodiment of the invention provides a housing which consists of a few individual parts and thus is compact, lightweight and easy to manufacture. The small number of components, for example, in an embodiment in which the housing consists of only three components - a one-piece manufactured trough, a lid for this trough and a separator arranged in the trough. It is this simple construction that surprisingly provides a cooling device for an operating device that is robust and has a minimized number of components, a minimized mass and a minimized volume and a simplified manufacturing process and whose housing protects the operating device and easy access to the operating device for maintenance and exchange allows. The latter is particularly advantageous in a battery pack as an operating device. The embodiment of the invention allows easy replacement of the Battery packs or individual battery cells of the battery pack.
Vorzugsweise bestehen zumindest der Trog des Gehäuses und der Trennkörper aus unterschiedlichen Werkstoffen. Durch die Verwendung von unterschiedlichen Werkstoffen mit voneinander verschiedenen Eigenschaften ist es möglich, die Bauteile hinsichtlich ihrer Funktion zu optimieren. So hat vorzugsweise der Werkstoff des Trogs eine hohe Formstabilität bei zugleich geringer Masse und besteht vorzugsweise aus einem Leichtbaumaterial. Der Werkstoff des Trennkörpers hingegen ist gekennzeichnet durch eine hohe Wärmeleitfähigkeit. Die Kombination unterschiedlicher, insbesondere der zuvor genannten Werkstoffe ermöglicht eine stabile und zugleich leichte Einhausung für das Batteriepaket, welche einerseits einfach und kostengünstig herzustellen ist und andererseits eine effiziente Temperierung des Batteriepakets erlaubt. Werkstoffe mit höher Steifigkeit bei geringer Masse, wie Leichtbauwerkstoffe, beispielsweise faserverstärkter Kunststoff, haben in der Regel eine geringe Wärmeleitfähigkeit. Die Schaffung eines Gehäuses aus einem außen liegenden Wärme isolierenden Werkstoff reduziert den Eintrag von Wärmeenergie. Demgegenüber begünstigt ein weiterer, im Inneren des Gehäuses als Trennkörper angeordneter zweiter Werkstoff mit einer hohen Wärmeleitfähigkeit die thermische Kopplung des Batteriepakets an das Kühlmittel.Preferably, at least the trough of the housing and the separating body made of different materials. By using different materials with mutually different properties, it is possible to optimize the components in terms of their function. So preferably the material of the trough has a high dimensional stability at the same time low mass and preferably consists of a lightweight construction material. The material of the separator, however, is characterized by a high thermal conductivity. The combination of different, in particular the aforementioned materials allows a stable and at the same time lightweight housing for the battery pack, which on the one hand is simple and inexpensive to manufacture and on the other hand allows efficient temperature control of the battery pack. Materials with high rigidity at low mass, such as lightweight materials, such as fiber reinforced plastic, usually have a low thermal conductivity. The creation of a housing made of an external heat-insulating material reduces the input of heat energy. In contrast, another, arranged in the interior of the housing as a separator second material with a high thermal conductivity favors the thermal coupling of the battery pack to the coolant.
Bei einer Ausführungsform weist das Gehäuse eine Bodenstruktur und eine Wandstruktur auf, wobei die Wandstruktur aus einem oder mehreren Wandelementen besteht, welche die Bodenstruktur einfassen und mit der Bodenstruktur einen strömungsdichten Trog ausbilden. Ein in dem Trog angeordnetes Batteriepaket wird von dem Trog an fünf Seiten eingefasst. Lediglich an der Oberseite weist der Trog eine Öffnung auf, die zum Einlegen des Trennkörpers und der Batteriezellen dient und von dem Deckel verschlossen wird. Die erfindungsgemäße Gestaltung ermöglicht eine effiziente, für Großserien taugliche Fertigung und zugleich einen geringen Montageaufwand.In one embodiment, the housing has a floor structure and a wall structure, wherein the wall structure consists of one or more wall elements which surround the floor structure and form with the floor structure a flow-tight trough. An arranged in the trough battery pack is bordered by the trough on five sides. Only at the top of the trough has an opening which serves for inserting the separating body and the battery cells and is closed by the lid. The design according to the invention enables an efficient manufacture suitable for high-volume production and at the same time low assembly costs.
Der Trog, insbesondere die Bodenstruktur und/oder zumindest ein Wandelement, ist mit Erhebungen und/oder Senken strukturiert. Die Strukturierung des Trogs kann einer zusätzlichen Versteifung dienen und ist vorzugsweise so gewählt, dass der zwischen dem Trennkörper und der Bodenstruktur beziehungsweise zwischen dem Trennkörper und der Wandstruktur ausgebildete Zwischenraum der Führung eines Kühlmittels dient. Dieser Zwischenraum umfasst vorzugsweise zahlreiche einzelne Kanäle, deren Trennstege neben der räumlichen Begrenzung der Kanäle der Übertragung der Gewichtskraft des Batteriepakets auf die Bodenstruktur dienen. Durch die erfindungsgemäße Integration derartiger Kühlmittelkanäle in die Leichtbauträgerstruktur kann auf separate Schläuche oder Kammern, wie sie aus dem Stand der Technik zur Aufnahme des Kühlmittels bekannt sind, verzichtet werden. Dies spart Bauteile und Masse.The trough, in particular the floor structure and / or at least one wall element, is structured with elevations and / or depressions. The structuring of the trough can serve an additional stiffening and is preferably chosen such that the intermediate space formed between the separating body and the floor structure or between the separating body and the wall structure serves to guide a coolant. This space preferably comprises numerous individual channels whose dividers serve, in addition to the spatial delimitation of the channels, to transmit the weight of the battery pack to the floor structure. The inventive integration of such coolant channels in the lightweight construction structure can be dispensed with separate hoses or chambers, as they are known from the prior art for receiving the coolant. This saves components and mass.
Dazu hat es sich als besonders günstig erwiesen, dass der zweite Werkstoff, der Werkstoff des Trennkörpers, ein insbesondere gegenüber Korrosion und Säure beständiges Metall ist. Metalle haben sehr gute Wärmeleiteigenschaften, sodass die Wärmeenergie aus den Batteriezellen schnell und effizient auf das Kühlmittel übertragen werden kann. Darüber hinaus trägt der in dem Trog fixierte Trennkörper zur Verbesserung der Steifigkeit des Trogs bei und kann als elektrische Abschirmung für die in dem Trog angeordnete Betriebseinrichtung dienen. Weiterhin muss der Trennkörper aus Metall muss nicht elektrisch isolierend ausgeführt sein, da die Batteriezellen so in dem Trog angeordnet sind, dass deren elektrischer Anschlusskontakt auf der dem Deckel zugewandten Seite positioniert ist.For this purpose, it has proven to be particularly favorable that the second material, the material of the separating body, is a particular resistant to corrosion and acidic metal. Metals have very good thermal conduction properties so that the heat energy from the battery cells can be quickly and efficiently transferred to the coolant. In addition, the separator fixed in the trough contributes to the improvement of the rigidity of the trough and can serve as electrical shielding for the operating means arranged in the trough. Furthermore, the separating body made of metal does not have to be designed to be electrically insulating, since the battery cells are arranged in the trough such that their electrical connection contact is positioned on the side facing the lid.
Die Strukturierung des Trogs dient in einer Weiterbildung der Erfindung als Anlagefläche für den Trennkörper, welcher strömungsdicht an dem Trog, insbesondere an der Anlagefläche, fixiert ist. Zur Abdichtung ist zwischen dem Trog und dem Trennkörper ein Dichtmittel angeordnet. Bei einem kraftschlüssig und/oder formschlüssig an dem Trog befestigten Trennkörper ist das Dichtmittel als ein elastisches Band ausgebildet. Eine andere Ausführungsform des Dichtmittels stellt ein Klebstoff dar, welcher zugleich der stoffschlüssigen Verbindung von Trog und Trennkörper dient. Der Trennkörper und auch das Dichtmittel sind gegenüber Korrosion und Säure beständig, sodass bei einer Leckage einer Batteriezelle das Kühlmittel nicht verunreinigt wird. Die Anlagefläche dient nicht nur der Abdichtung, sondern ermöglicht es, die Gewichtskraft des Batteriepakets aufzunehmen, sodass der Trennkörper nur wenig Last, insbesondere nur Druckkräfte, übertragen muss. Hierdurch ist es möglich, den Trennkörper sehr dünn und damit leicht, aber auch biegeweich zu gestalten. Ein derartiger Trennkörper kann vollständig oder weitestgehend plattenförmig, das heißt als ein flächiges im Referenzzustand ebenes Bauteil aus steifem Material bestehen. Eine Platte ist in der Mechanik ein Bauteil, das durch Kräfte senkrecht zu seiner Ebene und Momente um Achsen, die in der Plattenebene liegen, belastet wird.The structuring of the trough is used in a development of the invention as a contact surface for the separating body, which is fixed in a flow-tight manner on the trough, in particular on the contact surface. For sealing a sealing means is arranged between the trough and the separating body. In a non-positively and / or positively attached to the trough separation body, the sealant is formed as an elastic band. Another embodiment of the sealant is an adhesive, which also serves the cohesive connection of the trough and separator. The separator and also the sealant are resistant to corrosion and acid, so that in a leakage of a battery cell, the coolant is not contaminated. The contact surface not only serves the purpose of sealing, but also makes it possible to absorb the weight of the battery pack so that the separating body only has to transfer a small load, in particular only compressive forces. This makes it possible to make the separator very thin and therefore light, but also bendable. Such a separator may be completely or largely plate-shaped, that is, as a flat in the reference state flat component made of rigid material. A plate in mechanics is a component that is loaded by forces perpendicular to its plane and moments about axes lying in the plane of the plate.
Demgegenüber ist der Trennkörper bei einer anderen Ausführungsform steif und tragfähig ausgeführt. Hierzu ist der Trennkörper zumindest an einer dem Trog zugewandten Seite strukturiert. Der Trennkörper hat an der strukturierten Seite Erhebungen und/oder Senken, welche zur Verbesserung der Steifigkeit beitragen und gemeinsam mit der Oberfläche des Trogs einen Zwischenraum zur Führung eines Kühlmittels bilden. Eine Anlagefläche, zumindest eine Anlagefläche zur Aufnahme des Dichtmittels, ist an dem Trennkörper und/oder dem Trog ausgebildet.In contrast, the separating body is executed in another embodiment, rigid and stable. For this purpose, the separating body is structured at least on a trough-facing side. The separating body has on the structured side elevations and / or depressions, which contribute to the improvement of the rigidity and together with the surface of the trough a gap for guiding a Form coolant. A contact surface, at least one contact surface for receiving the sealant is formed on the separating body and / or the trough.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind drei davon in der Zeichnung dargestellt und werden nachfolgend beschrieben. Diese zeigen inThe invention allows numerous embodiments. To further clarify its basic principle, three of them are shown in the drawing and will be described below. These show in
In der Mitte der Bodenstruktur
Die
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Gehäusecasing
- 22
- Batteriepaketbattery pack
- 33
- Batteriezellebattery cell
- 44
- Trogtrough
- 55
- Deckelcover
- 66
- Bodenstruktursoil structure
- 77
- Wandstrukturwall structure
- 88th
- Trennkörperseparating body
- 99
- Zwischenraumgap
- 1010
- Senkedepression
- 1111
- Erhebungsurvey
- 1212
- Anlageflächecontact surface
- 1313
- Dichtmittelsealant
- 1414
- Batterieraumbattery room
- 1515
- Vorsprunghead Start
- 1616
- Sammlercollector
- 1717
- Zuleitungsanschlusssupply connection
- 1818
- Ableitungsanschlussexhaust port
- 1919
- Zwischenbodenfalse floor
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102011011650 A1 [0002] DE 102011011650 A1 [0002]
- WO 02/095843 A2 [0003] WO 02/095843 A2 [0003]
- DE 102009058808 A1 [0003] DE 102009058808 A1 [0003]
- DE 19503085 A1 [0003] DE 19503085 A1 [0003]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210012663 DE102012012663A1 (en) | 2012-06-23 | 2012-06-23 | Housing for carrying and cooling lithium ion battery pack for drive of electric vehicle, has separation body arranged between operating device and trough, where body and trough limit intermediate space to guide coolant in flow-proof design |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210012663 DE102012012663A1 (en) | 2012-06-23 | 2012-06-23 | Housing for carrying and cooling lithium ion battery pack for drive of electric vehicle, has separation body arranged between operating device and trough, where body and trough limit intermediate space to guide coolant in flow-proof design |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012012663A1 true DE102012012663A1 (en) | 2013-12-24 |
Family
ID=49713610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210012663 Pending DE102012012663A1 (en) | 2012-06-23 | 2012-06-23 | Housing for carrying and cooling lithium ion battery pack for drive of electric vehicle, has separation body arranged between operating device and trough, where body and trough limit intermediate space to guide coolant in flow-proof design |
Country Status (1)
Country | Link |
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DE (1) | DE102012012663A1 (en) |
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