FR3088593A1 - COMPARTMENT FOR ELECTRICAL ENERGY STORAGE DEVICE FOR MOTOR VEHICLE - Google Patents
COMPARTMENT FOR ELECTRICAL ENERGY STORAGE DEVICE FOR MOTOR VEHICLE Download PDFInfo
- Publication number
- FR3088593A1 FR3088593A1 FR1860535A FR1860535A FR3088593A1 FR 3088593 A1 FR3088593 A1 FR 3088593A1 FR 1860535 A FR1860535 A FR 1860535A FR 1860535 A FR1860535 A FR 1860535A FR 3088593 A1 FR3088593 A1 FR 3088593A1
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- Prior art keywords
- compartment
- fire barrier
- layer
- multilayer structure
- composite material
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Classifications
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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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
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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
- H01M50/222—Inorganic material
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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
- H01M50/222—Inorganic material
- H01M50/224—Metals
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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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- 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
- 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
- H01M50/231—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 having a layered structure
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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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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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
- H01M2200/00—Safety devices for primary or secondary batteries
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Composite Materials (AREA)
- Sustainable Development (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Body Structure For Vehicles (AREA)
Abstract
L'invention concerne un compartiment pour dispositif (16) de stockage d'énergie électrique pour véhicule automobile, ce compartiment étant agencé pour recevoir moins une cellule de stockage d'énergie électrique, ce compartiment étant réalisé au moins partiellement en matériau composite, notamment ce matériau composite étant formée par une structure multicouches comprenant par exemple des feuilles (79) de fibres de verre ou de carbone imprégnées notamment de résine thermoplastique, ce matériau composite comprenant une barrière anti-feu (80) notamment en matériau ignifuge.The invention relates to a compartment for an electrical energy storage device (16) for a motor vehicle, this compartment being arranged to receive at least one electric energy storage cell, this compartment being made at least partially of composite material, in particular this composite material being formed by a multilayer structure comprising for example sheets (79) of glass or carbon fibers impregnated in particular with thermoplastic resin, this composite material comprising a fire barrier (80) in particular made of flame-retardant material.
Description
L'invention concerne un dispositif de stockage d'énergie électrique pour véhicule automobile, comprenant un boîtier et au moins une cellule de stockage d'énergie électrique reçue dans le boîtier. L’invention se rapporte également à un compartiment pour dispositif de stockage d'énergie électrique pour véhicule automobile.The invention relates to an electrical energy storage device for a motor vehicle, comprising a housing and at least one electrical energy storage cell received in the housing. The invention also relates to a compartment for an electrical energy storage device for a motor vehicle.
Dans le domaine automobile, il est connu de mettre en œuvre des batteries électriques sous forme de modules. Chaque module comporte une pluralité de cellules de stockages d’énergie électrique reçues dans un boîtier. Il est ainsi plus aisé de combiner les batteries électriques pour obtenir une capacité de charge souhaitée. Il est également plus aisé, de la sorte, de monter la batterie sur le véhicule automobile, les cellules de stockage étant protégées par le boîtier.In the automotive field, it is known to use electric batteries in the form of modules. Each module includes a plurality of electrical energy storage cells received in a housing. It is thus easier to combine electric batteries to obtain a desired charge capacity. It is also easier, in this way, to mount the battery on the motor vehicle, the storage cells being protected by the housing.
La demande US 2011/0206967 A décrit un exemple de telle batterie. Dans cette demande, les cellules sont stockées dans des containers ayant des logements de réception des cellules. Une paroi des containers, destinées à être en contact avec une paroi d’un container voisin, présente des renfoncements formant une partie de conduit de circulation d’un fluide de refroidissement.Application US 2011/0206967 A describes an example of such a battery. In this request, the cells are stored in containers having receptacles for receiving the cells. A wall of the containers, intended to be in contact with a wall of a neighboring container, has recesses forming a part of the conduit for circulation of a cooling fluid.
Par ailleurs le boîtier de la batterie, boîtier qui loge les modules de batterie, se doit de protéger les cellules de la batterie en cas d’accident et / ou d’exposition au feu.In addition, the battery box, which houses the battery modules, must protect the battery cells in the event of an accident and / or exposure to fire.
Les boîtiers de batterie actuels sont principalement constitués de métaux, par exemple acier ou aluminium. Les solutions métalliques sont lourdes et conductrices de la chaleur, ce qui peut poser un problème pour maintenir des températures internes basses pendant les tests réglementaires et éviter le risque d'emballement des cellules de batterie.Current battery boxes are mainly made of metals, for example steel or aluminum. Metal solutions are heavy and conductive of heat, which can be a problem to maintain low internal temperatures during regulatory tests and avoid the risk of runaway battery cells.
Par ailleurs, les composites thermodurcissables (SMC) résistent bien au feu. Néanmoins, ils restent coûteux et ne sont pas adaptés à la production en série en raison du temps de cycle de production long.In addition, thermosetting composites (SMC) resist fire well. However, they remain expensive and are not suitable for mass production due to the long production cycle time.
Le but de l’invention est de proposer un dispositif de stockage d’énergie électrique pour véhicule automobile qui soit amélioré, notamment à l’exposition à un feu.The object of the invention is to provide an improved electrical energy storage device for a motor vehicle, in particular on exposure to a fire.
L’invention a ainsi pour objet un compartiment pour dispositif de stockage d'énergie électrique pour véhicule automobile, ce compartiment étant agencé pour recevoir moins une cellule (14) de stockage d'énergie électrique, ce compartiment étant réalisé au moins partiellement en matériau composite, notamment ce matériau composite étant formée par une structure multicouches comprenant par exemple des feuilles de fibres de verre ou de carbone imprégnées notamment de résine thermoplastique, ce matériau composite comprenant une barrière anti-feu en matériau ignifuge.The invention thus relates to a compartment for an electric energy storage device for a motor vehicle, this compartment being arranged to receive at least one cell (14) for storing electric energy, this compartment being made at least partially of composite material. , in particular this composite material being formed by a multilayer structure comprising for example sheets of glass or carbon fibers impregnated in particular with thermoplastic resin, this composite material comprising a fire barrier made of flame retardant material.
L’invention permet d’avoir un compartiment qui répond aux exigences anti-feu, de manière relativement économique tout en permettant de ne pas augmenter la masse du compartiment car de la matière thermoplastique peut être utilisée.The invention makes it possible to have a compartment which meets the fire-fighting requirements, in a relatively economical manner while allowing the mass of the compartment not to be increased since thermoplastic material can be used.
Ce compartiment forme avantageusement la partie inferieure d’un boîtier qui, avec un couvercle, reçoit des cellules de batterie.This compartment advantageously forms the lower part of a housing which, with a cover, receives battery cells.
Ce compartiment et le couvercle sont par exemple réalisés chacun à partir d’une feuille en matériau composite, notamment comprenant des fibres de verre, éventuellement en variante des fibres de carbone ou d’une autre nature, pré-imprégnées d’une résine thermoplastique.This compartment and the cover are for example each made from a sheet of composite material, in particular comprising glass fibers, possibly alternatively carbon or other fibers, pre-impregnated with a thermoplastic resin.
Selon l’un des aspects de l’invention, la barrière anti-feu est une couche extérieure du compartiment, notamment une couche tournée vers le fond du véhicule.According to one aspect of the invention, the fire barrier is an outer layer of the compartment, in particular a layer facing the bottom of the vehicle.
Selon l’un des aspects de l’invention, une deuxième barrière anti-feu est prévue sous la forme d’une couche intérieure du compartiment, notamment une couche tournée vers les modules de batterie à loger dans le compartiment. Ainsi deux barrières peuvent être prévues sur les deux faces, intérieur et extérieur, du compartiment de sorte à renforcer la protection au feu du compartiment.According to one aspect of the invention, a second fire barrier is provided in the form of an inner layer of the compartment, in particular a layer facing the battery modules to be housed in the compartment. Thus two barriers can be provided on the two sides, inside and outside, of the compartment so as to reinforce the fire protection of the compartment.
Selon l’un des aspects de l’invention, la barrière anti-feu est formée par l’un des éléments suivants :According to one aspect of the invention, the fire barrier is formed by one of the following:
un film anti-feu, notamment en plastique, notamment thermoplastique, avec des adjuvants appropriés, une couche comportant de l’aramide, par exemple couche en tissé, une couche ou film en métal.a fire-resistant film, in particular plastic, in particular thermoplastic, with suitable additives, a layer comprising aramid, for example a woven layer, a layer or film of metal.
Selon l’un des aspects de l’invention, le compartiment comporte une paroi de fond en regard des modules de batterie, la barrière anti-feu s’étendant sur toute la paroi de fond, notamment sur l’extérieur de celle-ci.According to one aspect of the invention, the compartment has a bottom wall facing the battery modules, the fire barrier extending over the entire bottom wall, in particular on the outside thereof.
Selon l’un des aspects de l’invention, le compartiment comporte une paroi latérale et la barrière anti-feu s’étend également sur cette paroi latérale.According to one aspect of the invention, the compartment has a side wall and the fire barrier also extends over this side wall.
Selon l’un des aspects de l’invention, la barrière anti-feu est une couche intégrée dans une structure multicouche du matériau composite.According to one aspect of the invention, the fire barrier is a layer integrated into a multilayer structure of the composite material.
L’invention concerne encore un procédé pour réaliser un compartiment selon l’une des revendications précédentes, dans lequel la barrière anti- feu est formée en même temps que les autres couches de la structure multicouches.The invention also relates to a method for producing a compartment according to one of the preceding claims, in which the fire barrier is formed at the same time as the other layers of the multilayer structure.
Selon l’un des aspects de l’invention, la barrière anti-feu est formé postérieurement à la structure multicouche, par assemblage de la couche avec la structure multicouche déjà formée.According to one aspect of the invention, the fire barrier is formed after the multilayer structure, by assembling the layer with the already formed multilayer structure.
Selon l’un des aspects de l’invention, la structure multicouche est formée par pression et mise en température des différentes couches entre elles, la résine, notamment la résine thermoplastique, s’infiltrant dans les feuilles notamment des feuilles de fibres de verre ou de carbone.According to one aspect of the invention, the multilayer structure is formed by pressure and temperature setting of the different layers together, the resin, in particular the thermoplastic resin, infiltrating into the sheets in particular sheets of glass fibers or of carbon.
D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, et des dessins annexés parmi lesquels :Other characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:
- les figures 1 à 5 sont des vues d’un exemple de mise en œuvre de l’invention,- Figures 1 to 5 are views of an example of implementation of the invention,
- la figure 6 est une vue en coupe d’une paroi de fond d’un compartiment selon un exemple de l’invention.- Figure 6 is a sectional view of a bottom wall of a compartment according to an example of the invention.
Les figures 1 et 2 illustrent un premier exemple 10 de dispositif de stockage d’énergie électrique pour véhicule automobile. Le véhicule automobile peut notamment être une voiture, un camion, un bus.Figures 1 and 2 illustrate a first example 10 of an electrical energy storage device for a motor vehicle. The motor vehicle can in particular be a car, a truck, a bus.
Le dispositif de stockage d’énergie électrique 10 comporte un boîtier 12 et des cellules 14 de stockage d’énergie électrique. Les cellules 14 sont par exemple montées électriquement en série.The electrical energy storage device 10 comprises a housing 12 and cells 14 for storing electrical energy. The cells 14 are for example electrically connected in series.
Le boîtier 12 est formé, comme cela est plus visible sur la figure 1, d’un compartiment 16 inferieur et d’une pièce rapportée 18 destinée à fermer le boîtier 12 pour protéger les cellules 14. La pièce rapportée 18 est ici un couvercle, qui vient recouvrir un logement 20 défini par la partie 16.The housing 12 is formed, as is more visible in FIG. 1, of a lower compartment 16 and of an insert 18 intended to close the housing 12 to protect the cells 14. The insert 18 is here a cover, which covers a housing 20 defined by part 16.
Le compartiment 16 a une forme de cuvette, avec une paroi fond 26, des parois latérales 28 et une collerette 30.The compartment 16 has the shape of a bowl, with a bottom wall 26, side walls 28 and a flange 30.
Le compartiment 16 qui est agencé pour recevoir les cellules de stockage d'énergie électrique, comporte :The compartment 16 which is arranged to receive the electrical energy storage cells, comprises:
la paroi de fond 26, la paroi de fond comportant un matériau composite, des parois latérales 28 se raccordant la paroi de fond 26, des canaux 50 pour une circulation d’un fluide de refroidissement, chaque canal 50 étant au moins partiellement formé par la paroi de fond 26, des éléments de connexion fluidique 100 agencés pour permettre de relier les canaux 50 avec un circuit externe de fluide de refroidissement non représenté, chaque élément de connexion 100 étant au moins partiellement surmoulé avec la paroi de fond ou la paroi latérale.the bottom wall 26, the bottom wall comprising a composite material, side walls 28 connecting the bottom wall 26, channels 50 for circulation of a cooling fluid, each channel 50 being at least partially formed by the bottom wall 26, fluid connection elements 100 arranged to allow the channels 50 to be connected with an external cooling fluid circuit not shown, each connection element 100 being at least partially molded with the bottom wall or the side wall.
Ce compartiment 16 forme la partie inférieure du boîtier 12 qui, avec un couvercle, reçoit des cellules de batterie.This compartment 16 forms the lower part of the housing 12 which, with a cover, receives battery cells.
Ce compartiment 16 et le couvercle 18 sont par exemple réalisés chacun à partir d’une feuille en matériau composite, notamment comprenant des fibres de verre, éventuellement en variante des fibres de carbone ou d’une autre nature, pré-imprégnées d’une résine thermoplastique.This compartment 16 and the cover 18 are for example each made from a sheet of composite material, in particular comprising glass fibers, optionally alternatively carbon or other fibers, pre-impregnated with a resin thermoplastic.
Comme visible sur les figures 4 et 5, chaque élément de connexion fluidique 100 du type à connexion rapide, ou en anglais « Quick connect », et comporte un embout 101 avec une gorge annulaire 102 agencée pour recevoir un relief complémentaire d’un élément de connexion complémentaire non représenté de sorte que, lorsque les deux éléments de connexion sont assemblés, ils forment une connexion permettant au fluide de refroidissement de circuler entre le canal 50 et le circuit externe.As can be seen in FIGS. 4 and 5, each fluid connection element 100 of the quick connect type, or in English "Quick connect", and comprises an end piece 101 with an annular groove 102 arranged to receive a complementary relief of an element of complementary connection not shown so that, when the two connection elements are assembled, they form a connection allowing the coolant to flow between the channel 50 and the external circuit.
Comme visible sur les figures 4 et 5, l’embout 101 comporte un flanc tronconique 104 pour faciliter la coopération avec l’élément de connexion complémentaire.As shown in Figures 4 and 5, the tip 101 has a frustoconical side 104 to facilitate cooperation with the complementary connection element.
L’embout 101 est réalisé en aluminium par exemple.The tip 101 is made of aluminum for example.
L’embout comporte une rainure 105 dans laquelle se trouve de la matière surmoulée de la paroi 28.The endpiece has a groove 105 in which there is material overmolded from the wall 28.
L’embout est agencé à travers un orifice 105 formé dans la paroi latérale 28.The endpiece is arranged through an orifice 105 formed in the side wall 28.
Les éléments de connexion sont agencés pour être connectés l’un à l’autre par encliquetage.The connection elements are arranged to be connected to each other by snap-fastening.
Le compartiment 16 comporte un canal 50 de distribution de fluide de refroidissement, ou fluide réfrigérant, et un canal 50 de collecte de fluide de refroidissement, chaque canal communiquant avec un élément de connexion associé, tel que décrit ci-dessus, pour respectivement permettre l’alimentation du canal de distribution par le circuit externe et l’évacuation de fluide réfrigérant par le circuit externe.The compartment 16 comprises a channel 50 for distributing coolant, or refrigerant, and a channel 50 for collecting coolant, each channel communicating with an associated connection element, as described above, to respectively allow the 'supply of the distribution channel by the external circuit and the evacuation of refrigerant fluid by the external circuit.
Chaque canal 50 comporte un sillon 51 formé par la paroi de fond 26 et un capot 55 agencé pour fermer ce sillon 51 et former ainsi le canal 50, la fermeture se faisant notamment par soudure de ce capot sur la paroi de fond, comme illustré sur la figure 3.Each channel 50 has a groove 51 formed by the bottom wall 26 and a cover 55 arranged to close this groove 51 and thus form the channel 50, the closure being effected in particular by welding this cover to the bottom wall, as illustrated in Figure 3.
Chaque capot 55 est de forme longiligne et est sensiblement plan.Each cover 55 is of elongated shape and is substantially planar.
Chaque capot 55 comporte, pour épouser un coude du canal, notamment deux coudes 56.Each cover 55 comprises, to match an elbow of the channel, in particular two elbows 56.
L’une des extrémités du capot du canal 50 est en regard de l’élément de connexion 100.One end of the cover of the channel 50 is opposite the connection element 100.
Le sillon 51 communique avec une pluralité d’orifices 65, pour faire communiquer le fluide de refroidissement avec un ou plusieurs échangeurs thermiques 60.The groove 51 communicates with a plurality of orifices 65, to communicate the cooling fluid with one or more heat exchangers 60.
Ces échangeurs thermiques 60 sont notamment chacun une plaque 61 avec des canaux intérieurs pour la circulation de fluide de refroidissement.These heat exchangers 60 are in particular each a plate 61 with internal channels for the circulation of cooling fluid.
Chaque capot 55couvre moins de 10%, notamment 5%, de la superficie de la paroi de fond 26.Each cover 55 covers less than 10%, in particular 5%, of the area of the bottom wall 26.
Selon l’un des aspects de l’invention, chaque capot 55 est réalisé en matière plastique.According to one aspect of the invention, each cover 55 is made of plastic.
Le liquide de refroidissement mis en œuvre dans ce cas peut notamment être un réfrigérant liquide à base de dioxyde de carbone, comme du R744 par exemple, du 2, 3, 3, 3-tétrafluoropropène (ou HFO-1234yf) ou du 1, 1, 1, 2-tétrafluoroéthane (ou R134a). Le liquide de refroidissement peut également être un nanofluide. Le liquide de refroidissement peut encore être de l’eau, incluant éventuellement des additifs.The coolant used in this case can in particular be a liquid refrigerant based on carbon dioxide, such as R744 for example, 2, 3, 3, 3-tetrafluoropropene (or HFO-1234yf) or 1, 1 , 1, 2-tetrafluoroethane (or R134a). The coolant can also be a nanofluid. The coolant can also be water, possibly including additives.
Comme illustré sur la figure 6 à titre d’exemple, le compartiment 16 est réalisé en matériau composite, ce matériau composite étant formée par une structure multicouches comprenant par exemple des feuilles 79 de fibres de verre ou de carbone imprégnées de résine thermoplastique, ce matériau composite comprenant une barrière anti-feu 80 en matériau ignifuge.As illustrated in FIG. 6 by way of example, the compartment 16 is made of composite material, this composite material being formed by a multilayer structure comprising for example sheets 79 of glass or carbon fibers impregnated with thermoplastic resin, this material composite comprising a fire barrier 80 in flame retardant material.
Ce compartiment forme la partie inférieure du boîtier 12 qui, avec le couvercle, reçoit des cellules de batterie.This compartment forms the lower part of the housing 12 which, with the cover, receives battery cells.
La barrière anti-feu 80 est une couche extérieure du compartiment 16, notamment une couche tournée vers le fond du véhicule.The fire barrier 80 is an outer layer of the compartment 16, in particular a layer facing the bottom of the vehicle.
Selon l’un des aspects de l’invention non illustré, une deuxième barrière anti-feu est prévue sous la forme d’une couche intérieure du compartiment, notamment une couche tournée vers les modules de batterie à loger dans le compartiment. Ainsi deux barrières peuvent être prévues sur les deux faces, intérieur et extérieur, du compartiment de sorte à renforcer la protection au feu du compartiment.According to one aspect of the invention not shown, a second fire barrier is provided in the form of an inner layer of the compartment, in particular a layer facing the battery modules to be housed in the compartment. Thus two barriers can be provided on the two sides, inside and outside, of the compartment so as to reinforce the fire protection of the compartment.
Selon l’un des aspects de l’invention, la barrière anti-feu 80 est formée par l’un des éléments suivants :According to one aspect of the invention, the fire barrier 80 is formed by one of the following elements:
un film anti-feu, notamment en plastique, notamment thermoplastique, avec des adjuvants appropriés, une couche comportant de l’aramide, par exemple couche en tissé, une couche ou film en métal.a fire-resistant film, in particular plastic, in particular thermoplastic, with suitable additives, a layer comprising aramid, for example a woven layer, a layer or film of metal.
La barrière anti-feu 80 s’étendant sur toute la paroi de fond, notamment sur l’extérieur de celle-ci.The fire barrier 80 extending over the entire bottom wall, in particular on the outside thereof.
Selon l’un des aspects de l’invention, le compartiment comporte une paroi latérale et la barrière anti-feu 80 s’étend également sur cette paroi latérale 28.According to one aspect of the invention, the compartment has a side wall and the fire barrier 80 also extends over this side wall 28.
Selon l’un des aspects de l’invention, la barrière anti-feu est une couche intégrée dans une structure multicouche du matériau composite.According to one aspect of the invention, the fire barrier is a layer integrated into a multilayer structure of the composite material.
La barrière anti- feu est formée en même temps que les autres couches de la structure multicouches, par exemple.The fire barrier is formed at the same time as the other layers of the multilayer structure, for example.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1860535A FR3088593A1 (en) | 2018-11-15 | 2018-11-15 | COMPARTMENT FOR ELECTRICAL ENERGY STORAGE DEVICE FOR MOTOR VEHICLE |
| PCT/FR2019/052561 WO2020099752A1 (en) | 2018-11-15 | 2019-10-28 | Compartment for electrical energy storage device for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1860535A FR3088593A1 (en) | 2018-11-15 | 2018-11-15 | COMPARTMENT FOR ELECTRICAL ENERGY STORAGE DEVICE FOR MOTOR VEHICLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3088593A1 true FR3088593A1 (en) | 2020-05-22 |
Family
ID=65685759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1860535A Pending FR3088593A1 (en) | 2018-11-15 | 2018-11-15 | COMPARTMENT FOR ELECTRICAL ENERGY STORAGE DEVICE FOR MOTOR VEHICLE |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3088593A1 (en) |
| WO (1) | WO2020099752A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110206967A1 (en) | 2010-02-25 | 2011-08-25 | Sanyo Electric Co., Ltd. | Battery cooling/heating structure and battery module |
| FR2986374A1 (en) * | 2012-01-31 | 2013-08-02 | Segula Matra Technologies | Element such as batteries tray, useful for electric storage batteries unit of electric vehicle, comprises container with casing presenting walls that include structure provided with mechanical layers of carbon fibers impregnated with resin |
| DE102013021246A1 (en) * | 2013-12-13 | 2014-07-31 | Daimler Ag | Fire protection casing for battery i.e. rechargeable battery, for use as high-voltage battery i.e. traction battery, in e.g. hybrid vehicle, has fabric layer, and fire-extinguishing agent formed as fire extinguishing agent layer |
| WO2017206665A1 (en) * | 2016-05-31 | 2017-12-07 | 比亚迪股份有限公司 | Battery packaging material and preparation method therefor, battery pack seal cover, battery pack body, power battery and electric vehicle |
-
2018
- 2018-11-15 FR FR1860535A patent/FR3088593A1/en active Pending
-
2019
- 2019-10-28 WO PCT/FR2019/052561 patent/WO2020099752A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110206967A1 (en) | 2010-02-25 | 2011-08-25 | Sanyo Electric Co., Ltd. | Battery cooling/heating structure and battery module |
| FR2986374A1 (en) * | 2012-01-31 | 2013-08-02 | Segula Matra Technologies | Element such as batteries tray, useful for electric storage batteries unit of electric vehicle, comprises container with casing presenting walls that include structure provided with mechanical layers of carbon fibers impregnated with resin |
| DE102013021246A1 (en) * | 2013-12-13 | 2014-07-31 | Daimler Ag | Fire protection casing for battery i.e. rechargeable battery, for use as high-voltage battery i.e. traction battery, in e.g. hybrid vehicle, has fabric layer, and fire-extinguishing agent formed as fire extinguishing agent layer |
| WO2017206665A1 (en) * | 2016-05-31 | 2017-12-07 | 比亚迪股份有限公司 | Battery packaging material and preparation method therefor, battery pack seal cover, battery pack body, power battery and electric vehicle |
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| Publication number | Publication date |
|---|---|
| WO2020099752A1 (en) | 2020-05-22 |
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