FR2955212A1 - Support plate for supporting electric assembly with cylindrical batteries in motor vehicle e.g. hybrid vehicle, has support unit intended to become deformed under effect of predetermined threshold effort transmitted to electric assembly - Google Patents

Support plate for supporting electric assembly with cylindrical batteries in motor vehicle e.g. hybrid vehicle, has support unit intended to become deformed under effect of predetermined threshold effort transmitted to electric assembly Download PDF

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Publication number
FR2955212A1
FR2955212A1 FR1050186A FR1050186A FR2955212A1 FR 2955212 A1 FR2955212 A1 FR 2955212A1 FR 1050186 A FR1050186 A FR 1050186A FR 1050186 A FR1050186 A FR 1050186A FR 2955212 A1 FR2955212 A1 FR 2955212A1
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France
Prior art keywords
batteries
assembly
support means
electric assembly
support unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR1050186A
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French (fr)
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FR2955212B1 (en
Inventor
Thierry Campanella
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to FR1050186A priority Critical patent/FR2955212B1/en
Publication of FR2955212A1 publication Critical patent/FR2955212A1/en
Application granted granted Critical
Publication of FR2955212B1 publication Critical patent/FR2955212B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/04Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64Constructional details of batteries specially adapted for electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66Arrangements of batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/04Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438Arrangement under the floor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/64Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643Cylindrical cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The plate (5) has a support unit for supporting a set of batteries (4) and intended to maintain the batteries in spaced position. The support unit is intended to become deformed under an effect of a predetermined threshold effort transmitted to an electric energy storage assembly (3) so as to allow batteries to bring closer to the assembly. The support unit is partially made of deformable material. Openings are designed to cooperate with the batteries. The support unit is intended to permit installation of the batteries in a staggered manner.

Description

PACK DE CELLULES ELECTRIQUES CONÇU POUR ABSORBER L'ENERGIE D'UN CHOC PACK OF ELECTRIC CELLS DESIGNED TO ABSORB THE ENERGY OF A SHOCK

La présente invention se rapporte à une platine de support pour un ensemble de stockage d'énergie électrique, à un tel ensemble et à un véhicule équipé d'un tel ensemble. Les véhicules hybrides ou électriques nécessitent l'implantation de nombreuses batteries, occupant un volume important pour assurer une autonomie suffisante au véhicule. De façon traditionnelle, ces batteries sont positionnées à l'intérieur de l'habitacle, par exemple sous les sièges, entre les sièges, dans la console centrale, au niveau du plancher ou encore dans le coffre ; l'habitabilité de l'habitacle est ainsi diminuée de façon conséquente par l'implantation des batteries. Une solution pour éviter d'encombrer l'habitacle est de disposer les batteries dans des cavités de la carrosserie, et notamment dans des soubassements aménagés à cet effet. Cependant, les constructeurs d'automobiles doivent respecter de nombreuses normes de sécurité. Ainsi pour obtenir une homologation par les autorités, les constructeurs d'automobiles doivent soumettre leurs véhicules à des essais de choc, en particulier, à des chocs frontaux et latéraux dont les conditions sont bien définies. Dans un véhicule classique les soubassements comportent des éléments de carrosserie, tels que des traverses d'assise ou des brancards, adaptés pour absorber une partie de l'énergie libérée lors d'un choc. Or, l'implantation des batteries dans les soubassements impose de supprimer ces éléments de carrosserie destinés à absorber une partie de l'énergie d'un choc. Ainsi, une telle implantation nuit aux comportements lors d'un choc d'un véhicule ainsi équipé. La présente invention a pour objet de remédier en tout ou partie aux différents inconvénients cités précédemment. The present invention relates to a support plate for an electrical energy storage assembly, to such an assembly and to a vehicle equipped with such an assembly. Hybrid or electric vehicles require the installation of many batteries, occupying a large volume to ensure sufficient autonomy to the vehicle. Traditionally, these batteries are positioned inside the cabin, for example under the seats, between the seats, in the center console, at the floor or in the trunk; the habitability of the passenger compartment is thus significantly reduced by the installation of the batteries. One solution to avoid cluttering the passenger compartment is to dispose the batteries in the body cavities, and in particular in bases arranged for this purpose. However, automakers must meet many safety standards. Thus, to obtain approval by the authorities, vehicle manufacturers must submit their vehicles to impact tests, in particular to front and side impacts whose conditions are well defined. In a conventional vehicle the substructures comprise bodywork elements, such as bed rails or stretchers, adapted to absorb a portion of the energy released during an impact. However, the implantation of the batteries in the substructure requires to remove these bodywork elements intended to absorb some of the energy of a shock. Thus, such implantation impairs the behavior during a shock of a vehicle thus equipped. The present invention aims to remedy all or part of the various disadvantages mentioned above.

Dans ce contexte technique, la présente invention a pour objet de proposer une platine pour un ensemble de stockage d'énergie électrique permettant de ne pas réduire l'habitabilité de l'habitacle et ne nuisant pas aux comportements du véhicule en cas de choc. L'invention a également pour objet de proposer un ensemble de stockage réalisé avec une telle platine. In this technical context, the present invention aims to provide a plate for a set of electrical energy storage not to reduce the livability of the passenger compartment and not affecting the behavior of the vehicle in case of shock. The invention also aims to propose a storage assembly made with such a plate.

A cet effet, la présente invention se rapporte à une platine de support pour un ensemble de stockage d'énergie électrique, destinée à recevoir une pluralité de batteries, la platine comprenant des moyens de support conçus pour supporter les batteries, caractérisé en ce que les moyens de support sont conçus pour maintenir espacées lesdites batteries et pour se déformer, sous l'effet d'un effort seuil prédéterminé transmis à l'ensemble, notamment en cas de choc, de manière à permettre un rapprochement d'au moins une partie desdites batteries les unes par rapport aux autres. For this purpose, the present invention relates to a support plate for an electrical energy storage assembly, intended to receive a plurality of batteries, the plate comprising support means designed to support the batteries, characterized in that the support means are designed to maintain spaced said batteries and to deform under the effect of a predetermined threshold force transmitted to the assembly, particularly in case of shock, so as to allow a rapprochement of at least a portion of said batteries relative to each other.

La présente invention se rapporte également à un ensemble de stockage d'énergie électrique destiné à être installé dans un soubassement d'un véhicule comportant une pluralité de batteries et au moins une platine de support conforme à l'invention. Ainsi, une platine selon l'invention permet d'installer des batteries dans un soubassement de véhicule et de libérer de l'espace habituellement occupé par les batteries dans l'habitacle. Les moyens de support, en étant conçus pour espacer les batteries, permettent de faciliter le refroidissement de celles-ci par une circulation d'air ou d'un liquide entres celles-ci : un bon refroidissement des batteries améliore leurs rendements. De plus, les moyens de support permettent, lors d'un choc, d'absorber une partie 10 de l'énergie libérée en se déformant et en permettant le rapprochement d'au moins une partie desdites batteries les unes par rapport aux autres. Une platine de support selon l'invention est simple à réaliser et permet de minimiser la masse de l'ensemble selon l'invention. Enfin, la platine ou l'ensemble selon l'invention est simple et peu couteux à 15 réaliser. Il est bien entendu au sens de la présente invention que le terme batterie englobe tout élément de stockage d'énergie électrique, notamment les batteries, cellules électriques, condensateurs et/ou accumulateurs. Dans un mode de réalisation de l'invention, les moyens de support comportent au 20 moins une zone de pliage et/ou au moins une découpe. Une zone de pliage et/ou une découpe permettent de contrôler et de faciliter la déformation des moyens de support. Selon une caractéristique de l'invention, les moyens de support sont réalisés au moins en partie dans un matériau déformable. Un tel matériau peut être un plastique ou du caoutchouc. 25 Selon une possibilité, la platine de support comporte en outre des orifices conçus pour coopérer chacun avec une batterie de manière à maintenir celles-ci en place. Les orifices permettent d'assurer, de manière simple, un maintien correct en positions espacées des batteries et permettent de guider le déplacement des batteries lors de la déformation des moyens de support. 30 Dans un mode de réalisation, les moyens de support sont conçus pour permettre de disposer les batteries sur plusieurs lignes parallèles. Avantageusement, les moyens de support sont conçus pour permettre de disposer les batteries en quinconce. Une disposition en quinconce des batteries permet, lors du rapprochement de celles-ci les unes par rapport aux autres, de maximiser le compactage des 35 batteries et donc autorise une importante déformation des moyens de support, sans altérer des batteries, étant entendu que plus la déformation autorisée est importante, plus la quantité d'énergie absorbée est importante. Dans un mode de réalisation de l'invention, l'ensemble comporte deux platines de support conformes à l'invention disposées en regards l'une de l'autre, les batteries étant maintenues entre lesdites platines, sensiblement parallèles entre elles. L'utilisation de deux platines placées en regard l'une de l'autre permet un meilleur maintien des batteries et permet d'absorber une plus grande quantité de l'énergie libérée lors d'un choc. Selon une caractéristique de l'invention, les batteries présentent une forme sensiblement cylindrique. Ainsi, des batteries cylindriques permettent un meilleur compactage 10 lors de la déformation des moyens de support. La présente invention concerne également un véhicule automobile équipé d'au moins un ensemble de stockage d'énergie électrique conforme à l'invention. L'invention sera bien comprise à l'aide de la description détaillée qui est exposée ci-dessous en regard du dessin annexé, représentant à titre d'exemples une forme de réalisation 15 d'un véhicule équipé d'un ensemble selon l'invention, dans lequel : La figure 1 est une vue en perspective d'un soubassement d'un véhicule selon la présente invention ; la figure 2 est une vue en perspective d'un ensemble de stockage d'énergie électrique selon l'invention ; 20 la figure 3 est une vue schématique de dessus d'un ensemble avant un choc ; la figure 4 est une vue schématique de dessus d'un compactage de batteries d'un ensemble après un choc. Un véhicule 1 selon l'invention, représenté sur la figure 1, comporte un soubassement 2 accueillant un ensemble 3 de stockage d'énergie électrique selon l'invention. 25 L'ensemble 3, représenté sur les figures 1 à 4, comporte une pluralité de batteries 4 et deux platines 5, 6 comportant des moyens de support conçus pour supporter les batteries 4. Les batteries 4 ont, par exemple, une forme sensiblement cylindrique. Les deux platines 5, 6 sont placées en regard l'une de l'autre et entres elles sont disposées les batteries 4 de manière sensiblement parallèles entres elles. Les moyens de 30 support des platines 5, 6 sont conçues pour maintenir espacées lesdites batteries 4. Les espacements 7 entres les batteries 4 facilitant une circulation d'air ou d'eau entres celles-ci permettant de les refroidir. Au moins une des platines 5, 6 comporte avantageusement des orifices 8 positionnés et dimensionnés de manière à coopérer chacun avec une batterie 4, de manière à 35 maintenir celles-ci en place. The present invention also relates to an electrical energy storage assembly intended to be installed in a base of a vehicle comprising a plurality of batteries and at least one support plate according to the invention. Thus, a plate according to the invention makes it possible to install batteries in a vehicle base and to free up space usually occupied by the batteries in the passenger compartment. The support means, being designed to space the batteries, can facilitate the cooling thereof by a flow of air or a liquid between them: a good cooling of the batteries improves their performance. In addition, the support means allow, during an impact, to absorb a portion 10 of the energy released by deforming and allowing the approximation of at least a portion of said batteries relative to each other. A support plate according to the invention is simple to implement and allows to minimize the mass of the assembly according to the invention. Finally, the platen or the assembly according to the invention is simple and inexpensive to achieve. It is of course within the meaning of the present invention that the term battery includes any element of storage of electrical energy, including batteries, electric cells, capacitors and / or accumulators. In one embodiment of the invention, the support means comprise at least one folding zone and / or at least one cutout. A folding zone and / or a cutout makes it possible to control and facilitate the deformation of the support means. According to one characteristic of the invention, the support means are made at least partly in a deformable material. Such a material may be a plastic or rubber. According to one possibility, the support plate further includes orifices designed to cooperate each with a battery so as to hold the battery in place. The orifices make it possible to ensure, in a simple manner, a correct hold in spaced positions of the batteries and make it possible to guide the displacement of the batteries during the deformation of the support means. In one embodiment, the support means are adapted to allow the batteries to be arranged on a plurality of parallel lines. Advantageously, the support means are designed to allow the batteries to be staggered. A staggered arrangement of the batteries makes it possible, when the latter are brought together relative to one another, to maximize the compaction of the batteries and thus allows a large deformation of the support means, without altering the batteries, it being understood that the greater the allowed deformation is important, the greater the amount of energy absorbed is important. In one embodiment of the invention, the assembly comprises two support plates according to the invention disposed facing one another, the batteries being held between said plates, substantially parallel to each other. The use of two plates placed opposite each other allows a better maintenance of the batteries and absorbs more of the energy released during a shock. According to one characteristic of the invention, the batteries have a substantially cylindrical shape. Thus, cylindrical batteries allow better compaction 10 during the deformation of the support means. The present invention also relates to a motor vehicle equipped with at least one electrical energy storage assembly according to the invention. The invention will be better understood from the detailed description which is given below with reference to the appended drawing, representing by way of example an embodiment of a vehicle equipped with an assembly according to the invention. , in which: Figure 1 is a perspective view of a base of a vehicle according to the present invention; Figure 2 is a perspective view of an electrical energy storage assembly according to the invention; Figure 3 is a schematic top view of an assembly prior to impact; FIG. 4 is a diagrammatic view from above of compacting batteries of an assembly after an impact. A vehicle 1 according to the invention, shown in Figure 1, comprises a base 2 hosting a set 3 of electrical energy storage according to the invention. The assembly 3, shown in FIGS. 1 to 4, comprises a plurality of batteries 4 and two plates 5, 6 comprising support means designed to support the batteries 4. The batteries 4 have, for example, a substantially cylindrical shape. . The two plates 5, 6 are placed opposite one another and between them are arranged the batteries 4 substantially parallel to each other. The support means of the plates 5, 6 are designed to keep spaced said batteries 4. The spacings 7 between the batteries 4 facilitating a flow of air or water between them for cooling them. At least one of the plates 5, 6 advantageously comprises orifices 8 positioned and dimensioned so as to each cooperate with a battery 4, so as to hold them in place.

Les orifices 8 sont positionnés sur la platine 5 de manière à permettre un positionnement des batteries 4 sur plusieurs lignes. Avantageusement alors, les batteries 4 sont disposées en quinconce comme illustré à la figure 3. Les moyens de support sont également conçus pour se déformer, sous l'effet d'un effort seuil prédéterminé transmis à l'ensemble 3, notamment en cas de choc, de manière à permettre un rapprochement d'au moins une partie desdites batteries 4 les unes par rapport aux autres, en diminuant les espacements 7. Afin de faciliter une telle déformation, les platines 5, 6 comportent au moins une zone de pliage et/ou au moins une découpe 9, représentée sur la figure 3. The orifices 8 are positioned on the plate 5 so as to allow positioning of the batteries 4 on several lines. Advantageously then, the batteries 4 are arranged in staggered rows as illustrated in FIG. 3. The support means are also designed to deform under the effect of a predetermined threshold force transmitted to the assembly 3, in particular in the event of a shock. , so as to allow at least a portion of said batteries 4 to be brought closer to each other, by decreasing the spacings 7. In order to facilitate such deformation, the plates 5, 6 comprise at least one folding zone and / or or at least one cutout 9, shown in FIG.

De façon alternative, les platines 5, 6 peuvent être réalisées au moins en partie dans un matériau déformable tel qu'un plastique ou un caoutchouc. Lors de la déformation des moyens de support, au moins une partie des batteries 4 peuvent être amenées en contact avec d'autres batteries 4 adjacentes en annulant les espacements 7. La figure 4 illustre la position des batteries 4 après que les moyens de support ont subi une déformation maximale, correspondant à une déformation mettant en contact toutes les batteries 4 sans toutefois les endommager. La disposition en quinconce et la forme cylindrique des batteries 4 permet d'optimiser le compactage des batteries 4 et donc autorise une déformation maximale très importante. Ainsi, les platines 5, 6 et l'ensemble 3 de stockage d'énergie électrique selon l'invention, décrits ci-dessus permettent, d'équiper un véhicule 1, conforme à l'invention, avec des batteries 4 disposées dans un soubassement 2. Le positionnement des batteries 4 dans un soubassement 2 permet en particulier de ne pas encombrer l'habitacle avec des batteries 4. Par ailleurs, l'ensemble 3 selon l'invention permet de rétablir la fonction d'absorption d'énergie habituellement réalisée par les traverses d'assise ou les brancards équipant un véhicule classique : les comportements du véhicule 1 en cas de choc ne sont ainsi pas modifiés par l'implantation de batteries 4 dans un soubassement 2. Bien entendu, les exemples de réalisations évoqués ci-dessus ne présentent aucun caractère limitatif et d'autres détails et améliorations peuvent être apportés à la platine 5, 6 ou à l'ensemble 3 selon l'invention, sans pour autant sortir du cadre de l'invention où d'autres formes de la platine 5, 6 ou de l'ensemble 3 peuvent être réalisées. En particulier, les platines 5, 6 pourraient présenter des ondulations à la place ou en complément des découpes 7, pour faciliter la déformation des platines 5, 6 ou augmenter la quantité d'énergie absorbée. 5 1 10 2. 15 3. 20 4. 5. 25 6. 30 7. 8. Alternatively, the plates 5, 6 can be made at least partly in a deformable material such as a plastic or a rubber. During the deformation of the support means, at least part of the batteries 4 can be brought into contact with other adjacent batteries 4 by canceling the spacings 7. FIG. 4 illustrates the position of the batteries 4 after the support means have suffered maximum deformation, corresponding to a deformation putting in contact all the batteries 4 without damaging them. The staggered arrangement and the cylindrical shape of the batteries 4 makes it possible to optimize the compaction of the batteries 4 and thus allows a very large maximum deformation. Thus, the plates 5, 6 and the electrical energy storage assembly 3 according to the invention, described above, make it possible to equip a vehicle 1 according to the invention with batteries 4 arranged in a base 2. The positioning of the batteries 4 in a base 2 makes it possible in particular not to encumber the passenger compartment with batteries 4. Moreover, the assembly 3 according to the invention makes it possible to restore the energy absorption function usually performed. by the sleepers or stretches equipping a conventional vehicle: the behavior of the vehicle 1 in case of shock are not changed by the installation of batteries 4 in a basement 2. Of course, the examples of achievements mentioned above above are not limiting and other details and improvements can be made to the plate 5, 6 or the assembly 3 according to the invention, without departing from the scope of the invention where other forms of the plate 5, 6 or of the assembly 3 can be made. In particular, the plates 5, 6 could have corrugations instead of or in addition to the cuts 7, to facilitate the deformation of the plates 5, 6 or increase the amount of energy absorbed. 5 1 10 2. 15 3. 20 4. 5. 25 6. 30 7. 8.

Claims (1)

REVENDICATIONS1. Platine (5, 6) de support pour un ensemble (3) de REVENDICATIONS1. Platine (5, 6) de support pour un ensemble (3) de stockage d'énergie électrique, destinée à recevoir une pluralité de batteries (4), la platine (5, 6) comprenant des moyens de support conçus pour supporter les batteries (4), caractérisé en ce que les moyens de support sont conçus pour maintenir espacées lesdites batteries (4) et pour se déformer, sous l'effet d'un effort seuil prédéterminé transmis à l'ensemble (3), notamment en cas de choc, de manière à permettre un rapprochement d'au moins une partie desdites batteries (4) les unes par rapport aux autres. Platine (5, 6) selon la revendication 1, dans lequel les moyens de support comportent au moins une zone de pliage et/ou au moins une découpe (9). Platine (5, 6) selon la revendication 1 ou 2, dans lequel les moyens de support sont réalisés au moins en partie dans un matériau déformable. Platine (5, 6) selon l'une des revendications 1 à 3, comportant en outre des orifices (8) conçus pour coopérer chacun avec une batterie (4) de manière à maintenir celles-ci en place. Platine (5, 6) selon l'une quelconque des revendications 1 à 4, dans lequel les moyens de support sont conçus pour permettre de disposer les batteries (4) sur plusieurs lignes parallèles. Platine (5, 6) selon la revendication 5, dans lequel les moyens de support sont conçus pour permettre de disposer les batteries (4) en quinconce. Ensemble (3) de stockage d'énergie électrique destiné à être installé dans un soubassement (2) d'un véhicule (1) comportant une pluralité de batteries (4) et au moins une platine (5, 6) de support conforme à l'une des revendications 1 à 6. Ensemble (3) selon la revendication 7, comportant deux platines (5, 6) de support conformes à l'une des revendications 1 à 6 disposées en regards l'une de l'autre,les batteries (4) étant maintenues entre lesdites platines (5, 6), sensiblement parallèles entre elles. 9. Ensemble (3) selon la revendication 7 ou 8, dans lequel les batteries (4) présentent une forme sensiblement cylindrique. 10. Véhicule (1) automobile équipé d'au moins un ensemble (3) de stockage d'énergie électrique conforme à l'une quelconque des revendications 7 à 9.10 REVENDICATIONS1. Support plate (5, 6) for a set (3) of CLAIMS1. Support plate (5, 6) for an electrical energy storage assembly (3) for receiving a plurality of batteries (4), the deck (5, 6) including support means for supporting the batteries ( 4), characterized in that the support means are designed to keep said batteries (4) spaced apart and to deform under the effect of a predetermined threshold force transmitted to the assembly (3), in particular in the event of an impact. , so as to allow a connection of at least a portion of said batteries (4) relative to each other. Platinum (5, 6) according to claim 1, wherein the support means comprise at least one folding zone and / or at least one cutout (9). Platinum (5, 6) according to claim 1 or 2, wherein the support means are made at least partly in a deformable material. Platinum (5, 6) according to one of claims 1 to 3, further comprising orifices (8) each designed to cooperate with a battery (4) so as to hold them in place. Platinum (5, 6) according to any one of claims 1 to 4, wherein the support means are designed to allow to arrange the batteries (4) on several parallel lines. Platinum (5, 6) according to claim 5, wherein the support means are designed to allow to arrange the batteries (4) staggered. Electrical energy storage assembly (3) for installation in a base (2) of a vehicle (1) having a plurality of batteries (4) and at least one carrier plate (5, 6) according to the present invention. one of claims 1 to 6. The assembly (3) according to claim 7, comprising two support plates (5, 6) according to one of claims 1 to 6 disposed facing one another, the batteries (4) being held between said plates (5, 6) substantially parallel to each other. 9. Assembly (3) according to claim 7 or 8, wherein the batteries (4) have a substantially cylindrical shape. 10. Vehicle (1) automobile equipped with at least one set (3) of electrical energy storage according to any one of claims 7 to 9.10
FR1050186A 2010-01-12 2010-01-12 PACK OF ELECTRIC CELLS DESIGNED TO ABSORB THE ENERGY OF A SHOCK Expired - Fee Related FR2955212B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216839A (en) * 1978-07-20 1980-08-12 Unique Mobility Inc. Electrically powered motor vehicle
DE4235394C1 (en) * 1992-10-21 1993-10-14 Daimler Benz Ag Drive battery for electric automobile - has individual cells loosely stacked in battery housing with rupture points separating to release cells in response to impact force of accident
JPH07246843A (en) * 1994-03-10 1995-09-26 Toyota Motor Corp Battery holding structure for electric vehicle
EP1088694A2 (en) * 1999-09-29 2001-04-04 Fuji Jukogyo Kabushiki Kaisha A structure for installing an automotive battery
WO2002091499A1 (en) * 2001-05-04 2002-11-14 International Truck Intellectual Property Company, Llc. Battery mounting assembly
WO2008074034A1 (en) * 2006-12-14 2008-06-19 Johnson Controls - Saft Advanced Power Solutions Llc Battery module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216839A (en) * 1978-07-20 1980-08-12 Unique Mobility Inc. Electrically powered motor vehicle
DE4235394C1 (en) * 1992-10-21 1993-10-14 Daimler Benz Ag Drive battery for electric automobile - has individual cells loosely stacked in battery housing with rupture points separating to release cells in response to impact force of accident
JPH07246843A (en) * 1994-03-10 1995-09-26 Toyota Motor Corp Battery holding structure for electric vehicle
EP1088694A2 (en) * 1999-09-29 2001-04-04 Fuji Jukogyo Kabushiki Kaisha A structure for installing an automotive battery
WO2002091499A1 (en) * 2001-05-04 2002-11-14 International Truck Intellectual Property Company, Llc. Battery mounting assembly
WO2008074034A1 (en) * 2006-12-14 2008-06-19 Johnson Controls - Saft Advanced Power Solutions Llc Battery module

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