WO2018104505A1 - Electrical energy storage device for a motor vehicle and attachment forming a portion of the housing of such an energy storage device - Google Patents

Electrical energy storage device for a motor vehicle and attachment forming a portion of the housing of such an energy storage device Download PDF

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Publication number
WO2018104505A1
WO2018104505A1 PCT/EP2017/081984 EP2017081984W WO2018104505A1 WO 2018104505 A1 WO2018104505 A1 WO 2018104505A1 EP 2017081984 W EP2017081984 W EP 2017081984W WO 2018104505 A1 WO2018104505 A1 WO 2018104505A1
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WO
WIPO (PCT)
Prior art keywords
housing
motor vehicle
energy storage
storage device
electrical energy
Prior art date
Application number
PCT/EP2017/081984
Other languages
French (fr)
Inventor
Mohamed Ibrahimi
Eric TUDEAU
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2018104505A1 publication Critical patent/WO2018104505A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • 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
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/01—Minimizing space with more compact designs or arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • 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

Definitions

  • the invention relates to an electrical energy storage device for a motor vehicle, comprising a housing and at least one electric energy storage cell received in the housing.
  • the invention also relates to an insert for such a storage device forming a portion of the housing.
  • each module comprises a plurality of electric energy storage cells received in a housing. It is thus easier to combine the electric batteries to obtain a desired charging capacity. It is also easier, in this way, to mount the battery on the motor vehicle, the storage cells being protected by the housing.
  • the application US 2011/0206967 A describes an example of such a battery.
  • the cells are stored in containers having cells receiving 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 circulation duct of a cooling fluid.
  • the object of the invention is to provide an electrical energy storage device for a motor vehicle does not have the aforementioned drawbacks.
  • the invention proposes a device for storing electrical energy for a motor vehicle, comprising a housing, and at least one electric energy storage cell received in the housing, at least a part of a wall of the housing. being formed by a portion of the body of the motor vehicle, the housing further forming at least a portion of a cooling fluid flow conduit.
  • the energy storage device according to the invention the cells are directly received in the body of the motor vehicle. Therefore, a part of the device wall being formed by a portion of the vehicle body, the device according to the invention allows a space saving and a weight saving of the vehicle. Integration into the vehicle body also frees up space in the motor vehicle.
  • the cooling circuit of the cells and / or the housing can be at least partially integrated into the vehicle body. This further contributes to the space saving allowed by the device compared to devices of the prior art.
  • the realization of at least a portion of a conduit in the vehicle body also ensures a better vibration resistance than separate conduits, they can also be more fragile and more exposed to damage.
  • the electrical energy storage device according to the invention has one or more of the following characteristics, taken alone or in combination:
  • the housing further comprises a portion attached to said portion of the body of the motor vehicle, the insert being preferably a cover or a bottom of the housing;
  • a plate is fixed, in particular welded, on the internal face of at least one wall of the housing, at least one cooling fluid circulation duct being defined between the plate and a wall of the housing, preferably by a relief of at least one of the plate and the wall, more preferably by a relief of the plate only;
  • the insert has a cup shape with a substantially planar bottom and at least one side wall extending around the bottom, the plate being fixed to the bottom and / or on at least one of the side walls, the plate completely or partially covering the bottom and / or the at least one of the side walls, the plate forming at least a portion of a cooling fluid circulation duct with the bottom and / or with one of the side walls.
  • each of the portion of the housing formed by a portion of the body of the motor vehicle and the attached portion forms at least a portion of a cooling fluid flow conduit
  • the invention relates to an attached part, in particular a cover, intended to be fixed on a part of the body of a motor vehicle to close a housing of a vehicle electrical energy storage device automobile, the electrical energy storage device for a motor vehicle comprising a housing and at least one electric energy storage cell received in the housing, at least one wall of the housing being formed by said part of the vehicle body, the housing further forming at least a portion of a cooling fluid flow conduit.
  • the attached portion is formed by two plates fixed together, in particular by welding.
  • At least one of the two plates has a bowl shape with a bottom, the bottom having at least one embossing to define at least a portion of a cooling fluid circulation duct, one of which plates preferably having a flat bottom.
  • FIG. 1 is a diagrammatic sectional view of a first example of an electrical energy storage device for a vehicle
  • FIG. 2 diagrammatically shows a top view of the electrical energy storage device of FIG. 1, the lid of which is removed,
  • FIG. 3 represents an exploded schematic view of a second example of an electrical energy storage device
  • FIG. 4 is a sectional view of the electrical energy storage device of FIG. 3, and
  • Figure 5 is a sectional view similar to that of Figure 4, a third example of an electrical energy storage device.
  • FIGS. 1 and 2 illustrate a first example of an electrical energy storage device for a motor vehicle.
  • the motor vehicle may in particular be a car, a truck, a bus.
  • the electrical energy storage device 10 essentially comprises a housing 12 and cells 14 for storing electrical energy.
  • the cells 14 are for example electrically connected in series.
  • the housing 12 is formed, as is more visible in Figure 1, a portion 16 of the body of the motor vehicle and an insert 18 for closing the housing 12 to protect the cells 14.
  • the patch 18 here is a cover, which covers the housing 20 defined by the part 16 of the body of the motor vehicle.
  • the insert 18 may alternatively be a bottom, a cover or any other part adapted to be attached to the part 16 of the body of the motor vehicle, in particular to close the housing 20 formed by the part 16 of the body of the motor vehicle and thereby protect the cells 14.
  • the insert 18 has, here, a bowl shape, with a substantially plane bottom 22, and a flange 24, also flat, extending all the way around the bottom 22.
  • the flange 24 extends slightly protruding from the bottom 22, in the direction of part 16 of the body of the motor vehicle.
  • the part 16 of the body of the motor vehicle also has a bowl shape, with a bottom 26, side walls 28 and a flange 30.
  • the part 16 of the body 16 is covered, on its inner face facing the housing 20, by a plate 32.
  • the plate 32 substantially follows the portion 16 of the body of the motor vehicle. However, this plate 32 has first bosses 34, second bosses 36 and a third boss 38.
  • the bosses 34, 36, 38 communicate together and / or open on the side wall 28 and / or the bottom 26 of the part 16 of the body of the motor vehicle.
  • the bosses 34, 36, 38 thus form all or part of one or more conduits 44, 46, 48 for circulating a cooling fluid for the cells 14 and / or the housing 20.
  • the cooling liquid used in this embodiment may 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 R 134a).
  • the coolant may also be a nanofluid.
  • the coolant may still be water, possibly including additives.
  • each first boss 34 is formed on a side wall 40 of the plate 32, covering the inner face of a side wall 28 of the part 16 of the body of the motor vehicle.
  • Each first boss 34 is here of substantially semicylindrical shape, of semicircular section. These bosses thus form at least a portion of a conduit 44 for circulating a cooling fluid, here aimed at cooling the housing 20.
  • Each second boss 36 is formed on a bottom wall 42 of the plate 32, covering the inner face of the bottom 26 of the part 16 of the body of the motor vehicle.
  • Each second boss 36 is of substantially semicylindrical shape, of semicircular section.
  • the two second bosses 36 are made on either side of the set of cells 14. In addition to the circulation of coolant in the conduits 46 which they partially define, the second bosses 36 contribute to maintaining in position the entire of cells 14.
  • the third boss 38 is formed on the bottom wall 42 of the plate 32, covering the inner face of the bottom 26 of the part 16 of the body of the motor vehicle.
  • the third boss 38 extends under the cells 14, in contact with these cells 14.
  • This third boss 38 is formed between the two second bosses 36.
  • the third boss 38 also allows, by its height, to contribute to the maintenance in position of the cells 14 in the housing. Above all, by its extended contact surface with the cells 14, the third boss 38 allows a large heat exchange between the cells and a coolant circulating in the conduit delimited by the boss.
  • Figures 3 and 4 illustrate a second example 50 of electrical energy storage device for a motor vehicle.
  • This device 50 for storing electrical energy for a motor vehicle is distinguished from the device 10 of FIGS. 1 and 2, essentially in that the circulation ducts of a cooling fluid are not produced, according to this second example, in the part 16 of the body of the motor vehicle, but at the level of the insert 18. In other words, according to this embodiment, only the insert 18 forms all or part of the cooling ducts of the cells 14 and / or the housing 20.
  • the insert 18 is here formed of a plate 56, forming the outer wall of the insert and having a cup-shaped, with a bottom 22, corresponding to the bottom of the insert 18 , and a plate 58, forming the inner wall, facing the housing 20.
  • the plate 58 substantially follows the first plate 56.
  • this plate 58 has first bosses 60 on a portion covering the bottom 22 of the plate 56
  • the bosses 60 thus form all or part of one or more conduits 62, 64, 66, 68 for circulating a cooling fluid for the cells 14 and / or the housing 20.
  • the cooling liquid used may be the same as in the context of the first embodiment described.
  • the bosses 60 are advantageously made such that the conduits 62, 64, 66, 68 are in contact with the cells 14.
  • each duct 62, 64, 66, 68 is advantageously in contact with a respective cell 14. This optimizes the heat exchange between the cell 14 and the cooling fluid flowing in the conduits 62, 64, 66, 68. This can also make it possible to wedge the cells 14 in the housing 20.
  • the ducts 62, 64, 66, 68 open out at the two longitudinal ends of the insert 18. This makes it possible to connect the ducts 62, 64, 66, 68 to ducts of another storage device or to another device adapted to allow the circulation of the cooling fluid in the conduits 62, 64, 66, 68. Alternatively, at least some of the conduits 62, 64, 66, 68 may communicate together, in particular two by two, and / or open on the lateral sides of the insert.
  • FIG. 5 illustrates a third example 70 of an electrical energy storage device for a motor vehicle.
  • This device 70 substantially corresponds to the combination of the insert 18 of the device 50 of Figures 3 and 4, and the portion 16 of the box of the device 10 of Figures 1 and 2.
  • the electrical energy storage device for a motor vehicle 70 comprises ducts 44, 46, 48 in the housing partially formed by a portion 16 of the body of the motor vehicle and ducts 62, 64, 66, 68 in the insert 18.
  • spacers 72, 74, 76 are interposed between two adjacent cells 14. These spacers 72, 74, 76 to maintain the cells 14 in their relative position.
  • these spacers can be held in position by being housed in two recesses 78 between two neighboring projections 60.
  • the spacers 72, 74, 76 are advantageously made of a good heat-conducting material to thereby contribute to the heat exchange between the cells 14 and the cooling fluid passing through the conduits 62, 64, 66, 68, via the plate 58 forming the inner wall of the insert.
  • the device 70 thus combines the cooling performance of the devices 10, 50 according to the first two embodiments described.
  • the invention is not limited to the examples described above. On the contrary, the invention is capable of numerous variants accessible to those skilled in the art.
  • the part of the body of the motor vehicle forms five walls of the housing receiving the cells.
  • the part of the box may form only one wall of the housing, or two, or three or four.
  • the ducts are made in the thickness of the housing walls. More specifically, a wall of the housing is formed by a double wall.
  • the first partition is kept substantially flat, where the other partition has embossings, to define at least a portion of the coolant circulation ducts. This makes it possible to maintain a reasonable size of the storage device.
  • a flat outer wall is also generally easier to integrate into a motor vehicle.
  • the embossings are present on the outer wall of the wall, only, the internal partition being substantially flat.
  • the two partitions have embossings, preferably arranged vis-à-vis. This can make it possible to optimize the cooling of the cells. In the case of the part of the box, these embossings of the outer partition may in fact be formed by recesses in the part of the box.
  • the ducts are formed by bosses formed in plates. It is of course possible to achieve these conduits by means of other reliefs.
  • the relief may be a recess.
  • the relief can be formed by folding, molding or any other method making it possible to obtain a relief capable of forming all or part of a conduit for circulation of a fluid.
  • spacers 72, 74, 76 mentioned in the context of the last example described may of course be implemented in the other two examples.

Abstract

The invention relates to an electrical energy storage device (70) for a motor vehicle, comprising a housing (12) and at least one electrical energy storage cell (14) received in the housing (12), at least one portion of a wall of the housing (12) being formed by a portion (16) of the body of the motor vehicle, the housing (12) further forming at least one portion of a cooling fluid circulation channel (44; 46; 48; 62; 64; 64; 68). The invention also relates to an attachment (18), in particular a cover, intended for being fastened to a portion (16) of the body of a motor vehicle for closing a housing (12) of such an electrical energy storage device (70) for a motor vehicle.

Description

DISPOSITIF DE STOCKAGE D'ÉNERGIE ÉLECTRIQUE POUR VÉHICULE AUTOMOBILE ET PIÈCE RAPPORTÉE FORMANT UNE PARTIE DU BOÎTIER  ELECTRIC POWER STORAGE DEVICE FOR MOTOR VEHICLE AND REPORTED PART FORMING PART OF THE HOUSING
D'UN TEL DISPOSITIF DE STOCKAGE D'ÉNERGIE  OF SUCH AN ENERGY STORAGE DEVICE
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 une pièce rapportée pour un tel dispositif de stockage, formant une partie du boîtier. The invention relates to an electrical energy storage device for a motor vehicle, comprising a housing and at least one electric energy storage cell received in the housing. The invention also relates to an insert for such a storage device forming a portion of the housing.
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 comprises a plurality of electric energy storage cells received in a housing. It is thus easier to combine the electric batteries to obtain a desired charging 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.  The application US 2011/0206967 A describes an example of such a battery. In this application, the cells are stored in containers having cells receiving 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 circulation duct of a cooling fluid.
Cependant, les modules décrits précédemment sont encombrants. Il peut donc être difficile de trouver un espace suffisant pour les recevoir dans le véhicule automobile. Ceci peut rendre la conception du véhicule automobile plus difficile.  However, the modules described above are cumbersome. It may therefore be difficult to find sufficient space to receive them in the motor vehicle. This can make the design of the motor vehicle more difficult.
Le but de l'invention est de proposer un dispositif de stockage d'énergie électrique pour véhicule automobile ne présentant pas les inconvénients susmentionnés.  The object of the invention is to provide an electrical energy storage device for a motor vehicle does not have the aforementioned drawbacks.
À cette fin, l'invention propose 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, au moins une partie d'une paroi du boîtier étant formée par une partie de la caisse du véhicule automobile, le boîtier formant en outre au moins une partie d'un conduit de circulation d'un fluide de refroidissement. Ainsi, avec le dispositif de stockage d'énergie selon l'invention, les cellules sont directement reçues dans la caisse du véhicule automobile. Dès lors, une partie de la paroi du dispositif étant formé par une partie de la caisse du véhicule, le dispositif selon l'invention permet un gain de place et un gain de poids du véhicule. L'intégration dans la caisse du véhicule permet également de libérer de l'espace dans le véhicule automobile. To this end, the invention proposes a device for storing electrical energy for a motor vehicle, comprising a housing, and at least one electric energy storage cell received in the housing, at least a part of a wall of the housing. being formed by a portion of the body of the motor vehicle, the housing further forming at least a portion of a cooling fluid flow conduit. Thus, with the energy storage device according to the invention, the cells are directly received in the body of the motor vehicle. Therefore, a part of the device wall being formed by a portion of the vehicle body, the device according to the invention allows a space saving and a weight saving of the vehicle. Integration into the vehicle body also frees up space in the motor vehicle.
Enfin, le circuit de refroidissement des cellules et/ou du boîtier peut être au moins partiellement intégré dans la caisse du véhicule. Ceci contribue encore au gain de place permis par le dispositif par rapport aux dispositifs de l'art antérieur. La réalisation d'au moins une partie d'un conduit dans la caisse du véhicule permet également d'assurer une meilleure résistance aux vibrations que les conduits séparés, ceux-ci pouvant également être plus fragiles et plus exposés aux dommages.  Finally, the cooling circuit of the cells and / or the housing can be at least partially integrated into the vehicle body. This further contributes to the space saving allowed by the device compared to devices of the prior art. The realization of at least a portion of a conduit in the vehicle body also ensures a better vibration resistance than separate conduits, they can also be more fragile and more exposed to damage.
Selon des modes de réalisation préférés, le dispositif de stockage d'énergie électrique selon l'invention présente une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison :  According to preferred embodiments, the electrical energy storage device according to the invention has one or more of the following characteristics, taken alone or in combination:
le boîtier comprend en outre une partie rapportée sur ladite partie de la caisse du véhicule automobile, la partie rapportée étant de préférence un couvercle ou un fond du boîtier ;  the housing further comprises a portion attached to said portion of the body of the motor vehicle, the insert being preferably a cover or a bottom of the housing;
une plaque est fixée, notamment soudée, sur la face interne d'au moins une paroi du boîtier, au moins un conduit de circulation d'un fluide de refroidissement étant défini entre la plaque et une paroi du boîtier, de préférence par un relief d'au moins l'un parmi la plaque et la paroi, de préférence encore par un relief de la plaque uniquement ;  a plate is fixed, in particular welded, on the internal face of at least one wall of the housing, at least one cooling fluid circulation duct being defined between the plate and a wall of the housing, preferably by a relief of at least one of the plate and the wall, more preferably by a relief of the plate only;
au moins l'un parmi la partie de la caisse du véhicule et la pièce rapportée a une forme de cuvette avec un fond sensiblement plan et au moins une paroi latérale s 'étendant autour du fond, la plaque étant fixée sur le fond et/ou sur au moins une des parois latérales, la plaque recouvrant en tout ou partie le fond et/ou ladite au moins une des parois latérales, la plaque formant au moins une partie d'un conduit de circulation d'un fluide de refroidissement avec le fond et/ou avec l'une des parois latérales. seule la partie du boîtier formée par une partie de la caisse du véhicule automobile forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement ; at least one of the part of the vehicle body and the insert has a cup shape with a substantially planar bottom and at least one side wall extending around the bottom, the plate being fixed to the bottom and / or on at least one of the side walls, the plate completely or partially covering the bottom and / or the at least one of the side walls, the plate forming at least a portion of a cooling fluid circulation duct with the bottom and / or with one of the side walls. only the portion of the housing formed by a portion of the body of the motor vehicle forms at least a portion of a cooling fluid circulation duct;
seule la partie rapportée sur une partie de la caisse du véhicule automobile, forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement ;  only the portion attached to a portion of the body of the motor vehicle, forms at least a portion of a coolant circulation duct;
chacune de la partie du boîtier formée par une partie de la caisse du véhicule automobile et de la partie rapportée forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement ;  each of the portion of the housing formed by a portion of the body of the motor vehicle and the attached portion forms at least a portion of a cooling fluid flow conduit;
Selon un autre aspect, l'invention se rapporte à une partie rapportée, notamment un couvercle, destinée à être fixée sur une partie de la caisse d'un véhicule automobile pour fermer un boîtier d'un dispositif de stockage d'énergie électrique pour véhicule automobile, le 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, au moins une paroi du boîtier étant formée par ladite partie de la caisse du véhicule, le boîtier formant en outre au moins une partie d'un conduit de circulation d'un fluide de refroidissement.  According to another aspect, the invention relates to an attached part, in particular a cover, intended to be fixed on a part of the body of a motor vehicle to close a housing of a vehicle electrical energy storage device automobile, the electrical energy storage device for a motor vehicle comprising a housing and at least one electric energy storage cell received in the housing, at least one wall of the housing being formed by said part of the vehicle body, the housing further forming at least a portion of a cooling fluid flow conduit.
De préférence, la partie rapportée est formée par deux plaques fixées ensemble, notamment par soudage.  Preferably, the attached portion is formed by two plates fixed together, in particular by welding.
De manière préférée, au moins l'une des deux plaques a une forme de cuvette avec un fond, le fond ayant au moins un embossage pour définir au moins une partie d'un conduit de circulation d'un fluide de refroidissement, l'une des plaques ayant de préférence un fond plat.  Preferably, at least one of the two plates has a bowl shape with a bottom, the bottom having at least one embossing to define at least a portion of a cooling fluid circulation duct, one of which plates preferably having a flat bottom.
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 features and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:
- la figure 1 représente schématiquement en coupe, un premier exemple de dispositif de stockage d'énergie électrique pour véhicule,  FIG. 1 is a diagrammatic sectional view of a first example of an electrical energy storage device for a vehicle,
- la figure 2 représente schématiquement en vue de dessus, le dispositif de stockage d'énergie électrique de la figure 1, dont le couvercle est retiré, - la figure 3 représente une vue schématique éclatée d'un deuxième exemple de dispositif de stockage d'énergie électrique, FIG. 2 diagrammatically shows a top view of the electrical energy storage device of FIG. 1, the lid of which is removed, FIG. 3 represents an exploded schematic view of a second example of an electrical energy storage device,
- la figure 4 est une vue en coupe du dispositif de stockage d'énergie électrique de la figure 3, et  FIG. 4 is a sectional view of the electrical energy storage device of FIG. 3, and
- la figure 5 est une vue en coupe analogue à celle de la figure 4, d'un troisième exemple de dispositif de stockage d'énergie électrique.  - Figure 5 is a sectional view similar to that of Figure 4, a third example of an electrical energy storage device.
Sur les différentes figures, les éléments identiques ou de fonction identique portent les mêmes numéros de référence. À fin de concision de la présente demande, ces éléments identiques ou de fonction identique ne sont pas décrits en détails dans le cadre de chaque exemple. Au contraire, seules les différences entre les modes de réalisation sont décrites en détails.  In the different figures, identical elements or identical function bear the same reference numbers. For the sake of brevity of the present application, these identical elements or identical function are not described in detail in the context of each example. On the contrary, only the differences between the embodiments are described in detail.
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.  FIGS. 1 and 2 illustrate a first example of an electrical energy storage device for a motor vehicle. The motor vehicle may in particular be a car, a truck, a bus.
Le dispositif de stockage d'énergie électrique 10 comporte essentiellement 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 essentially 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'une partie 16 de la caisse du véhicule automobile 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 le logement 20 défini par la partie 16 de la caisse du véhicule automobile. La pièce rapportée 18 peut, en variante, être un fond, un capot ou toute autre pièce adaptée à être rapportée sur la partie 16 de la caisse du véhicule automobile, notamment afin de fermer le logement 20 formé par la partie 16 de la caisse du véhicule automobile et, ainsi, protéger les cellules 14.  The housing 12 is formed, as is more visible in Figure 1, a portion 16 of the body of the motor vehicle and an insert 18 for closing the housing 12 to protect the cells 14. The patch 18 here is a cover, which covers the housing 20 defined by the part 16 of the body of the motor vehicle. The insert 18 may alternatively be a bottom, a cover or any other part adapted to be attached to the part 16 of the body of the motor vehicle, in particular to close the housing 20 formed by the part 16 of the body of the motor vehicle and thereby protect the cells 14.
La pièce rapportée 18 présente, ici, une forme de cuvette, avec un fond 22 sensiblement plan, et une collerette 24, également plane, s 'étendant tout autour du fond 22. La collerette 24 s'étend légèrement en saillie du fond 22, en direction de la partie 16 de la caisse du véhicule automobile. La partie 16 de la caisse du véhicule automobile a également une forme de cuvette, avec un fond 26, des parois latérales 28 et une collerette 30. La partie 16 de la caisse 16 est recouverte, sur sa face interne dirigée vers le logement 20, par une plaque 32. La plaque 32 suit sensiblement la partie 16 de la caisse du véhicule automobile. Cependant, cette plaque 32 a des premiers bossages 34, des deuxièmes bossages 36 et un troisième bossage 38. The insert 18 has, here, a bowl shape, with a substantially plane bottom 22, and a flange 24, also flat, extending all the way around the bottom 22. The flange 24 extends slightly protruding from the bottom 22, in the direction of part 16 of the body of the motor vehicle. The part 16 of the body of the motor vehicle also has a bowl shape, with a bottom 26, side walls 28 and a flange 30. The part 16 of the body 16 is covered, on its inner face facing the housing 20, by a plate 32. The plate 32 substantially follows the portion 16 of the body of the motor vehicle. However, this plate 32 has first bosses 34, second bosses 36 and a third boss 38.
Les bossages 34, 36, 38 communiquent ensemble et/ou débouchent sur la paroi latérale 28 et/ou le fond 26 de la partie 16 de la caisse du véhicule automobile. Les bossages 34, 36, 38 forment ainsi tout ou partie d'un ou plusieurs conduits 44, 46, 48 de circulation d'un fluide de refroidissement des cellules 14 et/ou du logement 20. 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 R-134a). Le liquide de refroidissement peut également être un nanofluide. Le liquide de refroidissement peut encore être de l'eau, incluant éventuellement des additifs.  The bosses 34, 36, 38 communicate together and / or open on the side wall 28 and / or the bottom 26 of the part 16 of the body of the motor vehicle. The bosses 34, 36, 38 thus form all or part of one or more conduits 44, 46, 48 for circulating a cooling fluid for the cells 14 and / or the housing 20. The cooling liquid used in this embodiment In particular, a case may 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 R 134a). The coolant may also be a nanofluid. The coolant may still be water, possibly including additives.
Plus précisément, tel qu'illustré, chaque premier bossage 34 est réalisé sur une paroi latérale 40 de la plaque 32, recouvrant la face interne d'une paroi latérale 28 de la partie 16 de la caisse du véhicule automobile. Chaque premier bossage 34 est ici de forme sensiblement hémicylindrique, de section semi-circulaire. Ces bossages forment ainsi au moins une partie d'un conduit 44 de circulation d'un fluide de refroidissement, visant ici à refroidir le logement 20.  More specifically, as illustrated, each first boss 34 is formed on a side wall 40 of the plate 32, covering the inner face of a side wall 28 of the part 16 of the body of the motor vehicle. Each first boss 34 is here of substantially semicylindrical shape, of semicircular section. These bosses thus form at least a portion of a conduit 44 for circulating a cooling fluid, here aimed at cooling the housing 20.
Chaque deuxième bossage 36 est réalisé sur une paroi de fond 42 de la plaque 32, recouvrant la face interne du fond 26 de la partie 16 de la caisse du véhicule automobile. Chaque deuxième bossage 36 est ici de forme sensiblement hémicylindrique, de section semi-circulaire. Les deux deuxièmes bossages 36 sont réalisés de part et d'autre de l'ensemble de cellules 14. Outre la circulation de liquide de refroidissement dans les conduits 46 qu'ils définissent partiellement, les deuxièmes bossages 36 contribuent à maintenir en position l'ensemble de cellules 14.  Each second boss 36 is formed on a bottom wall 42 of the plate 32, covering the inner face of the bottom 26 of the part 16 of the body of the motor vehicle. Each second boss 36 is of substantially semicylindrical shape, of semicircular section. The two second bosses 36 are made on either side of the set of cells 14. In addition to the circulation of coolant in the conduits 46 which they partially define, the second bosses 36 contribute to maintaining in position the entire of cells 14.
Enfin le troisième bossage 38 est réalisé sur la paroi de fond 42 de la plaque 32, recouvrant la face interne du fond 26 de la partie 16 de la caisse du véhicule automobile. Le troisième bossage 38 s'étend sous les cellules 14, en contact avec ces cellules 14. Ce troisième bossage 38 est réalisé entre les deux deuxièmes bossages 36. Le troisième bossage 38 permet également, par sa hauteur, de contribuer au maintien en position des cellules 14 dans le logement. Surtout, par sa surface de contact étendue avec les cellules 14, le troisième bossage 38 permet un important échange de chaleur entre les cellules et un liquide de refroidissement circulant dans le conduit délimité par le bossage. Finally the third boss 38 is formed on the bottom wall 42 of the plate 32, covering the inner face of the bottom 26 of the part 16 of the body of the motor vehicle. The third boss 38 extends under the cells 14, in contact with these cells 14. This third boss 38 is formed between the two second bosses 36. The third boss 38 also allows, by its height, to contribute to the maintenance in position of the cells 14 in the housing. Above all, by its extended contact surface with the cells 14, the third boss 38 allows a large heat exchange between the cells and a coolant circulating in the conduit delimited by the boss.
Dans le mode de réalisation des figures 1 et 2, seule la partie 16 de la caisse du véhicule automobile forme en tout ou partie des conduits de refroidissement des cellules 14 et/ou du logement 20.  In the embodiment of Figures 1 and 2, only the portion 16 of the body of the motor vehicle forms all or part of the cooling ducts of the cells 14 and / or the housing 20.
Les figures 3 et 4 illustrent un deuxième exemple 50 de dispositif de stockage d'énergie électrique pour véhicule automobile.  Figures 3 and 4 illustrate a second example 50 of electrical energy storage device for a motor vehicle.
Ce dispositif 50 de stockage d'énergie électrique pour véhicule automobile se distingue du dispositif 10 des figures 1 et 2, essentiellement en ce que les conduits de circulation d'un fluide de refroidissement ne sont pas réalisés, selon ce deuxième exemple, dans la partie 16 de la caisse du véhicule automobile, mais au niveau de la pièce rapportée 18. En d'autres termes, selon ce mode de réalisation, seule la pièce rapportée 18 forme en tout ou partie des conduits de refroidissement des cellules 14 et/ou du logement 20.  This device 50 for storing electrical energy for a motor vehicle is distinguished from the device 10 of FIGS. 1 and 2, essentially in that the circulation ducts of a cooling fluid are not produced, according to this second example, in the part 16 of the body of the motor vehicle, but at the level of the insert 18. In other words, according to this embodiment, only the insert 18 forms all or part of the cooling ducts of the cells 14 and / or the housing 20.
Pour ce faire, telle qu'illustrée, la pièce rapportée 18 est ici formée d'une plaque 56, formant la paroi extérieure de la pièce rapportée et présentant une forme de cuvette, avec un fond 22, correspondant au fond de la pièce rapportée 18, et d'une plaque 58, formant la paroi intérieure, orientée vers le logement 20. La plaque 58 suit sensiblement la première plaque 56. Cependant, cette plaque 58 a des premiers bossages 60 sur une partie recouvrant le fond 22 de la plaque 56. Les bossages 60 forment ainsi tout ou partie d'un ou plusieurs conduits 62, 64, 66, 68 de circulation d'un fluide de refroidissement des cellules 14 et/ou du logement 20. Le liquide de refroidissement mis en œuvre peut être le même que dans le cadre du premier mode de réalisation décrit. Les bossages 60 sont avantageusement réalisés de telle sorte que les conduits 62, 64, 66, 68 sont en contact avec les cellules 14. En particulier, chaque conduit 62, 64, 66, 68 est avantageusement en contact avec une cellule 14 respective. Ceci permet d'optimiser l'échange thermique entre la cellule 14 et le fluide de refroidissement coulant dans les conduits 62, 64, 66, 68. Ceci peut également permettre de caler les cellules 14 dans le logement 20. To do this, as illustrated, the insert 18 is here formed of a plate 56, forming the outer wall of the insert and having a cup-shaped, with a bottom 22, corresponding to the bottom of the insert 18 , and a plate 58, forming the inner wall, facing the housing 20. The plate 58 substantially follows the first plate 56. However, this plate 58 has first bosses 60 on a portion covering the bottom 22 of the plate 56 The bosses 60 thus form all or part of one or more conduits 62, 64, 66, 68 for circulating a cooling fluid for the cells 14 and / or the housing 20. The cooling liquid used may be the same as in the context of the first embodiment described. The bosses 60 are advantageously made such that the conduits 62, 64, 66, 68 are in contact with the cells 14. In particular, each duct 62, 64, 66, 68 is advantageously in contact with a respective cell 14. This optimizes the heat exchange between the cell 14 and the cooling fluid flowing in the conduits 62, 64, 66, 68. This can also make it possible to wedge the cells 14 in the housing 20.
Ici, les conduits 62, 64, 66, 68 débouchent aux deux extrémités longitudinales de la pièce rapportée 18. Ceci permet de relier les conduits 62, 64, 66, 68 à des conduits d'un autre dispositif de stockage ou à un autre dispositif adapté à permettre la mise en circulation du fluide de refroidissement dans les conduits 62, 64, 66, 68. Alternativement, au moins certains des conduits 62, 64, 66, 68 peuvent communiquer ensemble, notamment deux à deux, et/ou débouchent sur les côtés latéraux de la pièce rapportées.  Here, the ducts 62, 64, 66, 68 open out at the two longitudinal ends of the insert 18. This makes it possible to connect the ducts 62, 64, 66, 68 to ducts of another storage device or to another device adapted to allow the circulation of the cooling fluid in the conduits 62, 64, 66, 68. Alternatively, at least some of the conduits 62, 64, 66, 68 may communicate together, in particular two by two, and / or open on the lateral sides of the insert.
La figure 5 illustre un troisième exemple 70 de dispositif de stockage d'énergie électrique pour véhicule automobile. Ce dispositif 70 correspond sensiblement à la combinaison de la pièce rapportée 18 du dispositif 50 des figures 3 et 4, et de la partie 16 de la caisse du dispositif 10 des figures 1 et 2.  FIG. 5 illustrates a third example 70 of an electrical energy storage device for a motor vehicle. This device 70 substantially corresponds to the combination of the insert 18 of the device 50 of Figures 3 and 4, and the portion 16 of the box of the device 10 of Figures 1 and 2.
Ainsi, le dispositif de stockage d'énergie électrique pour véhicule automobile 70, selon ce troisième mode de réalisation, comporte des conduits 44, 46, 48 dans le boîtier partiellement formés par une partie 16 de la caisse du véhicule automobile et des conduits 62, 64, 66, 68 dans la pièce rapportée 18.  Thus, the electrical energy storage device for a motor vehicle 70, according to this third embodiment, comprises ducts 44, 46, 48 in the housing partially formed by a portion 16 of the body of the motor vehicle and ducts 62, 64, 66, 68 in the insert 18.
De plus, selon la figure 5, des entretoises 72, 74, 76 sont interposées entre deux cellules voisines 14. Ces entretoises 72, 74, 76 permettent de maintenir les cellules 14 dans leur position relative. Avantageusement, ces entretoises peuvent être maintenues en position en étant logés dans deux creux 78 entre deux bossages 60 voisins. Les entretoises 72, 74, 76 sont avantageusement en un matériau bon conducteur de la chaleur pour contribuer ainsi à l'échange de chaleur entre les cellules 14 et le fluide de refroidissement traversant les conduits 62, 64, 66, 68, via la plaque 58 formant la paroi interne de la pièce rapportée.  In addition, according to Figure 5, spacers 72, 74, 76 are interposed between two adjacent cells 14. These spacers 72, 74, 76 to maintain the cells 14 in their relative position. Advantageously, these spacers can be held in position by being housed in two recesses 78 between two neighboring projections 60. The spacers 72, 74, 76 are advantageously made of a good heat-conducting material to thereby contribute to the heat exchange between the cells 14 and the cooling fluid passing through the conduits 62, 64, 66, 68, via the plate 58 forming the inner wall of the insert.
Le dispositif 70 combine ainsi les performances de refroidissement des dispositifs 10, 50 selon les deux premiers modes de réalisation décrits. Bien entendu, l'invention ne se limite pas aux exemples décrits ci-avant. Au contraire, l'invention est susceptible de nombreuses variantes accessibles à l'homme de l'art. The device 70 thus combines the cooling performance of the devices 10, 50 according to the first two embodiments described. Of course, the invention is not limited to the examples described above. On the contrary, the invention is capable of numerous variants accessible to those skilled in the art.
Dans les exemples illustrés, la partie de la caisse du véhicule automobile forme cinq parois du boîtier recevant les cellules. Cependant, la partie de la caisse peut ne former qu'une paroi du boîtier, ou deux, ou trois ou quatre.  In the examples illustrated, the part of the body of the motor vehicle forms five walls of the housing receiving the cells. However, the part of the box may form only one wall of the housing, or two, or three or four.
Par ailleurs, dans les exemples décrits, les conduits sont réalisés dans l'épaisseur des parois du boîtier. Plus précisément, une paroi du boîtier est formée par une double cloison. La première cloison est conservée sensiblement plane, là où l'autre cloison a des embossages, pour définir au moins une partie des conduits de circulation de fluide de refroidissement. Ceci permet de conserver un encombrement raisonnable du dispositif de stockage. Une paroi externe plane est également généralement plus facile à intégrer dans un véhicule automobile. Cependant, selon une alternative, les embossages sont présents sur la cloison externe de la paroi, uniquement, la cloison interne étant sensiblement plane. Selon encore une autre variante, les deux cloisons ont des embossages, de préférence ménagés en vis-à-vis. Ceci peut permettre d'optimiser le refroidissement des cellules. Dans le cas de la partie de la caisse, ces embossages de la cloison externe peuvent en fait être formés par des renfoncements dans la partie de la caisse.  Furthermore, in the examples described, the ducts are made in the thickness of the housing walls. More specifically, a wall of the housing is formed by a double wall. The first partition is kept substantially flat, where the other partition has embossings, to define at least a portion of the coolant circulation ducts. This makes it possible to maintain a reasonable size of the storage device. A flat outer wall is also generally easier to integrate into a motor vehicle. However, according to one alternative, the embossings are present on the outer wall of the wall, only, the internal partition being substantially flat. According to yet another variant, the two partitions have embossings, preferably arranged vis-à-vis. This can make it possible to optimize the cooling of the cells. In the case of the part of the box, these embossings of the outer partition may in fact be formed by recesses in the part of the box.
De manière générale, dans le cadre des exemples décrits précédemment, les conduits sont formés par des bossages formés dans des plaques. Il est bien entendu possible de réaliser ces conduits au moyen d'autres reliefs. Comme dit précédemment, dans le cas d'une cloison formée par la caisse du véhicule automobile, le relief peut être un renfoncement. Dans le cas d'une plaque, le relief peut être formé par pliage, moulage ou tout autre procédé permettant d'obtenir un relief apte à former tout ou partie d'un conduit de circulation d'un fluide.  In general, in the context of the examples described above, the ducts are formed by bosses formed in plates. It is of course possible to achieve these conduits by means of other reliefs. As said above, in the case of a partition formed by the body of the motor vehicle, the relief may be a recess. In the case of a plate, the relief can be formed by folding, molding or any other method making it possible to obtain a relief capable of forming all or part of a conduit for circulation of a fluid.
Enfin, les entretoises 72, 74, 76 évoquées dans le cadre du dernier exemple décrit, peuvent bien entendues être mises en œuvre dans les deux autres exemples.  Finally, the spacers 72, 74, 76 mentioned in the context of the last example described, may of course be implemented in the other two examples.

Claims

REVENDICATIONS
1. Dispositif (10 ; 50 ; 70) de stockage d'énergie électrique pour véhicule automobile, comprenant un boîtier (12), et au moins une cellule (14) de stockage d'énergie électrique reçue dans le boîtier (12), au moins une partie d'une paroi du boîtier (12) étant formée par une partie de la caisse du véhicule automobile (16), le boîtier (12) formant en outre au moins une partie d'un conduit (44 ; 46 ; 48 ; 62 ; 64 ; 64 ; 68) de circulation d'un fluide de refroidissement. A device (10; 50; 70) for storing electrical energy for a motor vehicle, comprising a housing (12) and at least one electric energy storage cell (14) received in the housing (12), at least a portion of a wall of the housing (12) being formed by a portion of the body of the motor vehicle (16), the housing (12) further forming at least a portion of a conduit (44; 46; 48; 62; 64; 64; 68) for circulating a coolant.
2. Dispositif de stockage d'énergie électrique selon la revendication 1, dans lequel le boîtier (12) comprend en outre une partie (18) rapportée sur ladite partie de la caisse du véhicule automobile (16), la partie rapportée (18) étant de préférence un couvercle ou un fond du boîtier (12). 2. An electrical energy storage device according to claim 1, wherein the housing (12) further comprises a portion (18) attached to said portion of the body of the motor vehicle (16), the insert (18) being preferably a cover or a bottom of the housing (12).
3. Dispositif de stockage d'énergie électrique selon la revendication 1 ou 2, dans lequel une plaque (40) est fixée, notamment soudée, sur la face interne d'au moins une paroi du boîtier (12), au moins un conduit de circulation d'un fluide de refroidissement étant défini entre la plaque et une paroi du boîtier, de préférence par un relief d'au moins l'un parmi la plaque et la paroi, de préférence encore par un relief de la plaque uniquement. 3. An electric energy storage device according to claim 1 or 2, wherein a plate (40) is fixed, in particular welded, on the inner face of at least one wall of the housing (12), at least one conduit of circulation of a cooling fluid being defined between the plate and a wall of the housing, preferably by a relief of at least one of the plate and the wall, more preferably by a relief of the plate only.
4. Dispositif de stockage d'énergie selon la revendication 3, dans lequel au moins l'un parmi la partie de la caisse du véhicule (16) et la pièce rapportée (18) a une forme de cuvette avec un fond (26) sensiblement plan et au moins une paroi latérale (28) s'étendant autour du fond (26), la plaque (32) étant fixée sur le fond (26) et/ou sur au moins une des parois latérales (28), la plaque (32) recouvrant en tout ou partie le fond (26) et/ou ladite au moins une des parois latérales (28), la plaque (32) formant au moins une partie d'un conduit de circulation d'un fluide de refroidissement (44 ; 46 ; 48) avec le fond (26) et/ou avec l'une des parois latérales (28). The energy storage device according to claim 3, wherein at least one of the part of the vehicle body (16) and the insert (18) has a cup shape with a bottom (26) substantially plane and at least one side wall (28) extending around the bottom (26), the plate (32) being fixed on the bottom (26) and / or on at least one of the side walls (28), the plate (28) 32) covering all or part of the bottom (26) and / or said at least one of the side walls (28), the plate (32) forming at least a portion of a cooling fluid circulating duct (44). 46, 48) with the bottom (26) and / or with one of the side walls (28).
5. Dispositif de stockage d'énergie électrique selon l'une quelconque des revendications précédentes, dans lequel seule la partie du boîtier formée par une partie de la caisse du véhicule automobile (16) forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement (44 ; 46 ; 48). 5. An electrical energy storage device according to any one of the preceding claims, wherein only the portion of the housing formed by a portion of the body of the motor vehicle (16) forms at least a portion of a circulation duct d a cooling fluid (44; 46; 48).
6. Dispositif de stockage d'énergie électrique selon l'une quelconque des revendications 1 à 4, la revendication 2 s 'appliquant, dans lequel seule la partie (18) rapportée sur une partie de la caisse du véhicule automobile (16), forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement (62 ; 64 ; 66 ; 68). 6. An electrical energy storage device according to any one of claims 1 to 4, claim 2 applying, wherein only the portion (18) attached to a portion of the body of the motor vehicle (16) forms at least a portion of a coolant flow conduit (62; 64; 66; 68).
7. Dispositif de stockage d'énergie électrique selon l'une quelconque des revendications 1 à 4, la revendication 2 s' appliquant, dans lequel chacune de la partie du boîtier formée par une partie de la caisse du véhicule automobile (16) et de la partie rapportée (18) forme au moins une partie d'un conduit de circulation d'un fluide de refroidissement (44 ; 46 ; 48 ; 62 ; 64 ; 66 ; 68). 7. An electrical energy storage device according to any one of claims 1 to 4, claim 2 being applied, wherein each of the part of the housing formed by a part of the body of the motor vehicle (16) and of the insert (18) forms at least a portion of a coolant flow conduit (44; 46; 48; 62; 64; 66; 68).
8. Partie rapportée (18), notamment couvercle, destinée à être fixée sur une partie de la caisse d'un véhicule automobile (16) pour fermer un boîtier (12) d'un dispositif de stockage d'énergie électrique pour véhicule automobile (10 ; 50 ; 70), le dispositif de stockage d'énergie électrique pour véhicule automobile (10 ; 50 ; 70) comprenant un boîtier (12) et au moins une cellule (14) de stockage d'énergie électrique reçue dans le boîtier (12), au moins une paroi du boîtier (12) étant formée par ladite partie de la caisse du véhicule (16), le boîtier (12) formant en outre au moins une partie d'un conduit de circulation d'un fluide de refroidissement. 8. An insert (18), in particular a cover, intended to be fastened to a portion of the body of a motor vehicle (16) for closing a housing (12) of an electrical energy storage device for a motor vehicle ( 10; 50; 70), the motor vehicle electrical energy storage device (10; 50; 70) comprising a housing (12) and at least one electric energy storage cell (14) received in the housing ( 12), at least one wall of the housing (12) being formed by said portion of the vehicle body (16), the housing (12) further forming at least a portion of a coolant flow conduit .
9. Partie rapportée selon la revendication 8, formée par deux plaques (56 ; 58) fixées ensemble, notamment par soudage. 9. The insert according to claim 8, formed by two plates (56; 58) secured together, in particular by welding.
10. Partie rapportée selon la revendication 9, dans lequel au moins l'une des deux plaques (56 ; 58) a une forme de cuvette avec un fond, le fond ayant au moins un embossage (60) pour définir au moins une partie d'un conduit de circulation d'un fluide de refroidissement (62 ; 64 ; 66 ; 68), l'une des plaques (56 ; 58) ayant de préférence un fond (22) plat. An insert according to claim 9, wherein at least one of the two plates (56; 58) has a cup shape with a bottom, the bottom having at least one embossing (60) for defining at least a portion of a coolant flow conduit (62; 64; 66; 68), one of the plates (56; 58) preferably having a bottom (22) dish.
PCT/EP2017/081984 2016-12-09 2017-12-08 Electrical energy storage device for a motor vehicle and attachment forming a portion of the housing of such an energy storage device WO2018104505A1 (en)

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FR1662207A FR3060206A1 (en) 2016-12-09 2016-12-09 ELECTRIC ENERGY STORAGE DEVICE FOR A MOTOR VEHICLE AND RECIPIENT PIECE FORMING A PART OF THE HOUSING OF SUCH AN ENERGY STORAGE DEVICE
FR1662207 2016-12-09

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