WO2013156554A1 - Heat regulation device for a battery module - Google Patents

Heat regulation device for a battery module Download PDF

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Publication number
WO2013156554A1
WO2013156554A1 PCT/EP2013/058057 EP2013058057W WO2013156554A1 WO 2013156554 A1 WO2013156554 A1 WO 2013156554A1 EP 2013058057 W EP2013058057 W EP 2013058057W WO 2013156554 A1 WO2013156554 A1 WO 2013156554A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
exchange plate
heat
turbulator
conduit
Prior art date
Application number
PCT/EP2013/058057
Other languages
French (fr)
Inventor
Elise BEAUREPAIRE
Sylvain Moreau
Original Assignee
Valeo Systemes Thermiques
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Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2013156554A1 publication Critical patent/WO2013156554A1/en

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
    • 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
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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

Definitions

  • the present invention relates to the thermal regulation of batteries and more particularly to a thermal regulation device for battery modules in the field of electric and hybrid vehicles.
  • the thermal regulation of batteries is an important point. Indeed, if the batteries are subjected to too cold temperatures, their autonomy can decrease sharply and if they are subjected to too high temperatures, there is a risk of thermal runaway that can go as far as the destruction of the battery.
  • the batteries are generally in the form of cells juxtaposed parallel to each other in a protective housing and form what is called a battery module.
  • a temperature control device of the battery module In order to regulate the temperature of the cells, it is known to add a temperature control device of the battery module. These devices are generally incorporated inside a housing containing one or more battery modules and use circulating heat transfer fluids, for example by means of a pump, in a conduit, said conduit passing in particular under or inside. a heat exchange plate in direct contact with the cells.
  • the heat transfer fluids can thus absorb heat emitted by the cells in order to cool them and evacuate this heat at one or more heat exchangers such as a radiator or a refrigerant.
  • the heat transfer fluids can also, if necessary, bring heat to heat said cells, for example if they are connected to a electrical resistance or heating by Positive Temperature Coefficient (PTC).
  • PTC Positive Temperature Coefficient
  • the heat transfer fluids generally used are ambient air or liquids such as water or a solution of water and glycol. Liquids are better heat conductors than gases, they are a solution that is preferred because it is more thermally efficient.
  • the heat exchange plates in direct contact with the cells are placed at the bottom of the housings containing one or more battery modules, said battery modules resting on said heat exchange plates.
  • Another known possibility is to place the heat exchange plates between the cells or even between the terminals of said cells.
  • These heat exchange plates generally consist of two metal plates brazed one on the other, at least one of which has been stamped to form a recessed impression with an inlet and an outlet. Once the metal plates brazed to one another, the recessed impression forms a conduit in which a heat transfer fluid can flow from a fluid inlet to a fluid outlet.
  • the present invention relates to a heat exchange plate shaped to support at least a reserve of electrical energy or to be intercalated between electrical energy reserves, comprising two thermoconductive plates contiguous to each other so forming at least one conduit for the circulation of a coolant, said conduit comprising at least one turbulator (7), having a propeller blade profile.
  • each turbulator comes from at least one of said thermally conductive plates.
  • each turbulator extends substantially transversely to the conduit.
  • the conduit comprises a channel delimited by lateral edges interconnected by a bottom wall and a cover.
  • each turbulator is formed of an extrados wall and a lower surface wall, said extrados wall having a radius of curvature less than the radius of curvature of said intrados wall.
  • the depth of the bottom wall of the duct is greater than the depth of a top portion of the turbulator projecting inside said duct.
  • the heat-conducting plates are metallic.
  • the heat-conducting plates are brazed one on the other.
  • the duct as well as the turbulators are formed by stamping at least one of the heat-conducting plates.
  • the heat exchange plate comprises a first thermally conductive plate (3A) embossed to form at least one indentation as well as each turbulator and a second plane thermoconductive plate.
  • the invention also relates to an electrical energy reserve module comprising at least one heat exchange plate according to any one of the preceding aspects.
  • FIG. 1 shows a sectional view of a heat exchange plate
  • FIG. 2 shows a view from below of a stamped heat-conductive plate
  • FIG. 3 shows a perspective view of a section of a portion of a duct
  • FIG. 1 shows a sectional view of a heat exchange plate 1.
  • the latter comprises a first heat-conducting plate 3A contiguous to a second thermoconductive plate 3B.
  • Such a heat exchange plate 1 is shaped to support at least a reserve of electrical energy or to be intercalated between electrical energy reserves such as batteries. This kind of heat exchange plate 1 can in particular be used to regulate the temperature of a battery module.
  • the heat exchange plate 1 may also comprise on its edges supports 4 of insulating material, for example plastic, to ensure electrical insulation between the batteries and the heat exchange plate 1.
  • the heat exchange plate 1 also comprises a conduit 5 connecting an inlet and a fluid outlet (not shown). In this conduit circulates a heat transfer fluid, for example a mixture of water and glycol, in order to restore or absorb heat energy to the battery module.
  • the duct 5 thus comprises a channel 50 delimited by lateral edges 52 interconnected by a bottom wall 51 and a cover 60.
  • the heat exchange plate 1 is preferably made of metal and in order to form the duct 5, at least one heat-conducting plates 3A, 3B are stamped. In the embodiment shown in FIG. 1, a single first heat-conducting plate 3A is stamped and forms an indentation 5 'visible in part in FIG.
  • said indentation 5' forming the lateral edges 52 connected to each other by a bottom wall 51 of the channel 50.
  • the indentation 5 ' is covered by a second heat-conducting plate 3B plane forming the cover 60 of the channel 50.
  • the two heat-conducting plates 3A and 3B can be stamped so that the first heat-conducting plate 3A bears a hollow recess 5 'complementary to an indentation carried by the second thermoconductive plate 3B.
  • the indentations of the latter are placed one on the other in order to form the duct 5.
  • the two heat-conducting plates 3A and 3B can be stamped so that the first heat-conducting plate 3A carries a hollow recess 5 'offset from a hollow recess 5' carried by the second thermoconductive plate 3B .
  • the indentations of the latter are alternately placed next to each other in order to form conduits 5.
  • the joining of the heat-conducting plates 3A, 3B metal can advantageously and preferentially be made by brazing, this allowing a good sealing of the duct 5.
  • FIGS. 2 and 3 respectively showing a view from below of a thermoconductive plate 3A and its indentation 5 'and a perspective view of a section of a portion of duct 5, note that turbulators 7 are placed in the conduit 5, said turbulators 7 protruding inside thereof.
  • Each turbulator 7 has a propeller blade profile and extends substantially transversely to the duct 5.
  • the propeller blade profile of turbulators 7 can deflect heat transfer fluid flow and print a helical movement.
  • the heat transfer fluid and optimally mixed in the conduit 5 and thus the efficiency of the heat exchange plate 1 is improved.
  • the turbulators 7 have the advantage of increasing the contact surface and therefore of exchange between the heat transfer fluid and the heat exchange plate 1 and therefore it improves all the more the exchanges between these elements.
  • each turbulator 7 is inclined relative to the normal to the duct 5, with an acute angle of between 30 and 80 degrees, preferably 45 degrees.
  • each turbulator 7 is formed of an extrados wall 71 and an intrados wall 72.
  • the extrados wall 71 having a radius of curvature less than the radius of curvature of the intrados wall 72.
  • Each turbulator 7 protrudes inside the conduit 5 so that the depth H of the bottom wall 51 is greater than the depth h of a top portion 73 of the turbulator 7.
  • a turbulator 7 does not obstruct the conduit 5 and the heat transfer fluid can circulate inside the latter.
  • the turbulators 7 are made of material with the thermoconductive plate 3A or 3B and are formed during its stamping. This thus makes it possible to limit the production costs of said turbulators 7 since their production is integrated into an already existing manufacturing step, without this lengthening the time required to perform said manufacturing step.
  • the heat exchange plate 1 according to the invention allows an improved homogenization of the coolant due to turbulators 7 having a half-helix shape which impart to the heat transfer fluid a helical circulation in the duct 5, this in fact improving thermal exchanges.
  • a reserve electrical energy such as a battery module, comprising at least one heat exchange plate 1 according to the invention, is improved.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention concerns a heat exchange plate (1) designed to support at least one electric power reserve or to be interposed between electric power reserves, comprising two thermally conductive plates (3A, 3B) attached to each other so as to form at least one conduit (5) intended for the circulation of a heat transfer fluid, said conduit (5) comprising at least one turbulator (7) having a propeller blade profile.

Description

Dispositif de régulation thermique pour module de batteries.  Thermal regulation device for battery module.
La présente invention concerne la régulation thermique de batteries et plus particulièrement un dispositif de régulation thermique pour module de batteries dans le domaine des véhicules électriques et hybrides. The present invention relates to the thermal regulation of batteries and more particularly to a thermal regulation device for battery modules in the field of electric and hybrid vehicles.
La régulation thermique des batteries, notamment dans le domaine des véhicules électriques et hybrides, est un point important. En effet, si les batteries sont soumises à des températures trop froides, leur autonomie peut décroître fortement et si elles sont soumises à des températures trop importantes, il y a un risque d'emballement thermique pouvant aller jusqu'à la destruction de la batterie. Dans les véhicules électriques et hybrides, les batteries sont généralement sous forme de cellules juxtaposées parallèlement les une aux autres dans un boîtier de protection et forment ce que l'on appelle un module de batteries. The thermal regulation of batteries, particularly in the field of electric and hybrid vehicles, is an important point. Indeed, if the batteries are subjected to too cold temperatures, their autonomy can decrease sharply and if they are subjected to too high temperatures, there is a risk of thermal runaway that can go as far as the destruction of the battery. In electric and hybrid vehicles, the batteries are generally in the form of cells juxtaposed parallel to each other in a protective housing and form what is called a battery module.
Afin de réguler la température des cellules, il est connu d'ajouter un dispositif de régulation de température du module de batteries. Ces dispositifs sont généralement incorporés à l'intérieur d'un boîtier contenant un ou plusieurs modules de batteries et utilisent des fluides caloporteurs circulant, par exemple au moyen d'une pompe, dans un conduit, ledit conduit passant notamment sous ou à l'intérieur d'une plaque d'échange thermique en contact direct avec les cellules. In order to regulate the temperature of the cells, it is known to add a temperature control device of the battery module. These devices are generally incorporated inside a housing containing one or more battery modules and use circulating heat transfer fluids, for example by means of a pump, in a conduit, said conduit passing in particular under or inside. a heat exchange plate in direct contact with the cells.
Les fluides caloporteurs peuvent ainsi absorber de la chaleur émise par les cellules afin de les refroidir et évacuer cette chaleur au niveau d'un ou plusieurs échangeurs thermiques comme par exemple un radiateur ou un réfrigérant. Les fluides caloporteurs peuvent également, si besoin est, apporter de la chaleur pour réchauffer lesdites cellules, par exemple s'ils sont reliés à une résistance électrique ou à un chauffage par Coefficient Positif de Température (CTP). The heat transfer fluids can thus absorb heat emitted by the cells in order to cool them and evacuate this heat at one or more heat exchangers such as a radiator or a refrigerant. The heat transfer fluids can also, if necessary, bring heat to heat said cells, for example if they are connected to a electrical resistance or heating by Positive Temperature Coefficient (PTC).
Les fluides caloporteurs généralement utilisés sont l'air ambiant ou des liquides comme par exemple l'eau ou une solution d'eau et de glycol. Les liquides étant meilleurs conducteurs de chaleur que les gaz, ils sont une solution qui est privilégiée car plus efficace thermiquement. The heat transfer fluids generally used are ambient air or liquids such as water or a solution of water and glycol. Liquids are better heat conductors than gases, they are a solution that is preferred because it is more thermally efficient.
De façon générale, les plaques d'échange thermique en contact direct avec les cellules sont placées au fond des boîtiers contenant un ou plusieurs modules de batteries, lesdits modules de batteries reposant sur lesdites plaques d'échange thermique. Une autre possibilité connue est de placer les plaques d'échange thermique entre les cellules ou même entre les bornes desdites cellules. In general, the heat exchange plates in direct contact with the cells are placed at the bottom of the housings containing one or more battery modules, said battery modules resting on said heat exchange plates. Another known possibility is to place the heat exchange plates between the cells or even between the terminals of said cells.
Ces plaques d'échange thermique sont généralement constituées de deux plaques métalliques brasées l'une sur l'autre, dont au moins une des deux a été emboutie afin de former une empreinte en creux avec une entrée et un sortie. Une fois les plaques métalliques brasées l'une sur l'autre, l'empreinte en creux forme un conduit dans lequel peut circuler un fluide caloporteur depuis une entrée de fluide vers une sortie de fluide. These heat exchange plates generally consist of two metal plates brazed one on the other, at least one of which has been stamped to form a recessed impression with an inlet and an outlet. Once the metal plates brazed to one another, the recessed impression forms a conduit in which a heat transfer fluid can flow from a fluid inlet to a fluid outlet.
Afin que les échanges thermiques soient les plus efficaces possibles, il est nécessaire que le fluide caloporteur passant dans la plaque d'échange thermique soit homogénéisé. Ainsi la température du fluide caloporteur est homogène sur le diamètre du conduit et donc son efficacité optimale. So that the heat exchange is the most effective possible, it is necessary that the heat transfer fluid passing through the heat exchange plate is homogenized. Thus the temperature of the coolant is homogeneous on the diameter of the duct and therefore its optimum efficiency.
Il est connu, notamment dans les échangeurs de chaleurs à plaques, afin d'homogénéiser le fluide caloporteur, d'utiliser des turbulateurs placés dans le conduit. Cependant, ces turbulateurs sont généralement de simples obstacles placés dans le courant du fluide caloporteur et n'ont pas une efficacité optimale. Un des buts de l'invention est donc de remédier au moins partiellement aux inconvénients de l'art antérieur et de proposer une plaque d'échange thermique comportant des turbulateurs à efficacité améliorée. It is known, particularly in plate heat exchangers, to homogenize the coolant, to use turbulators placed in the conduit. However, these turbulators are generally simple obstacles placed in the coolant stream and do not have optimum efficiency. One of the aims of the invention is therefore to at least partially overcome the disadvantages of the prior art and to propose a heat exchange plate comprising turbulators with improved efficiency.
Ainsi, la présente invention concerne une plaque d'échange thermique conformée afin de supporter au moins une réserve d'énergie électrique ou de s'intercaler entre des réserves d'énergie électrique, comprenant deux plaques thermoconductrices accolées l'une à l'autre afin de former au moins un conduit destiné à la circulation d'un fluide caloporteur, ledit conduit comportant au moins un turbulateur (7), ayant un profil de pale d'hélice. Thus, the present invention relates to a heat exchange plate shaped to support at least a reserve of electrical energy or to be intercalated between electrical energy reserves, comprising two thermoconductive plates contiguous to each other so forming at least one conduit for the circulation of a coolant, said conduit comprising at least one turbulator (7), having a propeller blade profile.
Selon un aspect de l'invention, chaque turbulateur vient de matière d'au moins l'une desdites plaques thermoconductrices. According to one aspect of the invention, each turbulator comes from at least one of said thermally conductive plates.
Selon un autre aspect de l'invention, chaque turbulateur s'étend de manière sensiblement transversale au conduit. According to another aspect of the invention, each turbulator extends substantially transversely to the conduit.
Selon un autre aspect de l'invention, le conduit comprend un canal délimité par des bords latéraux reliés entre eux par une paroi de fond et un couvercle. According to another aspect of the invention, the conduit comprises a channel delimited by lateral edges interconnected by a bottom wall and a cover.
Selon un autre aspect de l'invention, chaque turbulateur est formé d'une paroi extrados et d'une paroi intrados, ladite paroi extrados ayant un rayon de courbure inférieur au rayon de courbure de ladite paroi intrados. According to another aspect of the invention, each turbulator is formed of an extrados wall and a lower surface wall, said extrados wall having a radius of curvature less than the radius of curvature of said intrados wall.
Selon un autre aspect de l'invention, la profondeur de la paroi de fond du conduit est supérieure à la profondeur d'une partie sommitale du turbulateur faisant saillie à l'intérieur dudit conduit. Selon un autre aspect de l'invention, les plaques thermoconductrices sont métalliques. According to another aspect of the invention, the depth of the bottom wall of the duct is greater than the depth of a top portion of the turbulator projecting inside said duct. According to another aspect of the invention, the heat-conducting plates are metallic.
Selon un autre aspect de l'invention, les plaques thermoconductrices sont brasées l'une sur l'autre. According to another aspect of the invention, the heat-conducting plates are brazed one on the other.
Selon un autre aspect de l'invention, le conduit ainsi que les turbulateurs sont formés par emboutissage d'au moins une des plaques thermoconductrices. Selon un autre aspect de l'invention, la plaque d'échange thermique comporte une première plaque thermoconductrice (3A) emboutie afin de former au moins une empreinte en creux ainsi que chaque turbulateur et une seconde plaque thermoconductrice plane. L'invention concerne également un module de réserve d'énergie électrique comprenant au moins une plaque d'échange thermique conforme à l'un quelconque des aspects précédents. According to another aspect of the invention, the duct as well as the turbulators are formed by stamping at least one of the heat-conducting plates. According to another aspect of the invention, the heat exchange plate comprises a first thermally conductive plate (3A) embossed to form at least one indentation as well as each turbulator and a second plane thermoconductive plate. The invention also relates to an electrical energy reserve module comprising at least one heat exchange plate according to any one of the preceding aspects.
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 montre une vue en coupe d'une plaque d'échange thermique,  FIG. 1 shows a sectional view of a heat exchange plate,
- la figure 2 montre une vue de dessous d'une plaque thermoconductrice emboutie,  FIG. 2 shows a view from below of a stamped heat-conductive plate,
- la figure 3 montre une vue en perspective d'une coupe d'une portion d'un conduit,  FIG. 3 shows a perspective view of a section of a portion of a duct,
- la figure 4 montre une vue en coupe longitudinale d'une portion du conduit de la figure 3. Sur les différentes figures, les éléments identiques portent les mêmes numéros de référence. La figure ι montre une vue en coupe d'une plaque d'échange thermique 1.- Figure 4 shows a longitudinal sectional view of a portion of the duct of Figure 3. In the different figures, the identical elements bear the same reference numbers. FIG. 1 shows a sectional view of a heat exchange plate 1.
Cette dernière comporte une première plaque thermoconductrice 3A accolée à une seconde plaque thermoconductrice 3B. The latter comprises a first heat-conducting plate 3A contiguous to a second thermoconductive plate 3B.
Une telle plaque d'échange thermique 1 est conformée afin de supporter au moins une réserve d'énergie électrique ou de s'intercaler entre des réserves d'énergie électriques telles que des batteries. Ce genre de plaque d'échange thermique 1 peut notamment être utilisée afin de réguler la température d'un module de batteries. La plaque d'échange thermique 1 peut également comporter sur ses bords des supports 4 en matière isolante, par exemple en matière plastique, afin d'assurer l'isolation électrique entre les batteries et la plaque d'échange thermique 1. Such a heat exchange plate 1 is shaped to support at least a reserve of electrical energy or to be intercalated between electrical energy reserves such as batteries. This kind of heat exchange plate 1 can in particular be used to regulate the temperature of a battery module. The heat exchange plate 1 may also comprise on its edges supports 4 of insulating material, for example plastic, to ensure electrical insulation between the batteries and the heat exchange plate 1.
La plaque d'échange thermique 1 comporte également un conduit 5 reliant une entrée et une sortie de fluide (non représentées). Dans ce conduit circule un fluide caloporteur, par exemple un mélange d'eau et de glycol, afin de restituer ou absorber de l'énergie calorifique au module de batteries. Le conduit 5 comprend ainsi un canal 50 délimité par des bords latéraux 52 reliés entre eux par une paroi de fond 51 et un couvercle 60. La plaque d'échange thermique 1 est préférentiellement en métal et afin de former le conduit 5, au moins une des plaques thermoconductrices 3A, 3B est emboutie. Dans le mode de réalisation présenté par la figure 1, une seule première plaque thermoconductrice 3A est emboutie et forme une empreinte en creux 5' visible en partie sur la figure 2, ladite empreinte en creux 5' formant les bords latéraux 52 reliés entre eux par une paroi de fond 51 du canal 50. Afin de fermer le conduit 5, l'empreinte en creux 5' est recouverte par une seconde plaque thermoconductrice 3B plane formant le couvercle 60 du canal 50. The heat exchange plate 1 also comprises a conduit 5 connecting an inlet and a fluid outlet (not shown). In this conduit circulates a heat transfer fluid, for example a mixture of water and glycol, in order to restore or absorb heat energy to the battery module. The duct 5 thus comprises a channel 50 delimited by lateral edges 52 interconnected by a bottom wall 51 and a cover 60. The heat exchange plate 1 is preferably made of metal and in order to form the duct 5, at least one heat-conducting plates 3A, 3B are stamped. In the embodiment shown in FIG. 1, a single first heat-conducting plate 3A is stamped and forms an indentation 5 'visible in part in FIG. 2, said indentation 5' forming the lateral edges 52 connected to each other by a bottom wall 51 of the channel 50. In order to close the duct 5, the indentation 5 'is covered by a second heat-conducting plate 3B plane forming the cover 60 of the channel 50.
Selon un autre mode de réalisation non représenté, les deux plaques thermoconductrices 3A et 3B peuvent être embouties de sorte que la première plaque thermoconductrice 3A porte une empreinte en creux 5' complémentaire d'une empreinte en creux portée par la seconde plaque thermoconductrice 3B. Lorsque les deux plaques thermoconductrices 3A et 3B sont accolées, les empreintes en creux de ces dernières sont placées l'une sur l'autre afin de former le conduit 5. According to another embodiment not shown, the two heat-conducting plates 3A and 3B can be stamped so that the first heat-conducting plate 3A bears a hollow recess 5 'complementary to an indentation carried by the second thermoconductive plate 3B. When the two thermally conductive plates 3A and 3B are contiguous, the indentations of the latter are placed one on the other in order to form the duct 5.
Selon un autre mode de réalisation non représenté, les deux plaques thermoconductrices 3A et 3B peuvent être embouties de sorte que la première plaque thermoconductrice 3A porte une empreinte en creux 5' décalée d'une empreinte en creux 5' portée par la seconde plaque thermoconductrice 3B. Lorsque les deux plaques thermoconductrices 3A et 3B sont accolées, les empreintes en creux de ces dernières sont alternativement placées l'une à côté de l'autre afin de former des conduits 5. L'accolement des plaques thermoconductrices 3A, 3B métalliques peut avantageusement et préférentiellement être réalisé par brasage, cela permettant une bonne étanchéité du conduit 5. According to another embodiment not shown, the two heat-conducting plates 3A and 3B can be stamped so that the first heat-conducting plate 3A carries a hollow recess 5 'offset from a hollow recess 5' carried by the second thermoconductive plate 3B . When the two thermally conductive plates 3A and 3B are contiguous, the indentations of the latter are alternately placed next to each other in order to form conduits 5. The joining of the heat-conducting plates 3A, 3B metal can advantageously and preferentially be made by brazing, this allowing a good sealing of the duct 5.
Sur les figure 2 et 3, montrant respectivement une vue de dessous d'une plaque thermoconductrice 3A et de son empreinte en creux 5' et une vue en perspective d'une coupe d'une portion de conduit 5, on remarque que des turbulateurs 7 sont placés dans le conduit 5, lesdits turbulateurs 7 faisant saillie à l'intérieur de celui-ci. Chaque turbulateur 7 a un profil de pale d'hélice et il s'étend de manière sensiblement transversale au conduit 5. Le profil de pale d'hélice des turbulateurs 7 permet de dévier de flux de fluide caloporteur et de lui imprimer un mouvement hélicoïdal. Ainsi, le fluide caloporteur et mélangé de façon optimale dans le conduit 5 et donc l'efficacité de la plaque d'échange thermique 1 est améliorée. De plus, les turbulateurs 7 ont comme avantage d'augmenter la surface de contact et donc d'échange entre le fluide caloporteur et la plaque d'échange thermique 1 et donc cela améliore d'autant plus les échanges entre ces éléments. In FIGS. 2 and 3, respectively showing a view from below of a thermoconductive plate 3A and its indentation 5 'and a perspective view of a section of a portion of duct 5, note that turbulators 7 are placed in the conduit 5, said turbulators 7 protruding inside thereof. Each turbulator 7 has a propeller blade profile and extends substantially transversely to the duct 5. The propeller blade profile of turbulators 7 can deflect heat transfer fluid flow and print a helical movement. Thus, the heat transfer fluid and optimally mixed in the conduit 5 and thus the efficiency of the heat exchange plate 1 is improved. In addition, the turbulators 7 have the advantage of increasing the contact surface and therefore of exchange between the heat transfer fluid and the heat exchange plate 1 and therefore it improves all the more the exchanges between these elements.
Afin de réduire les pertes de charges, chaque turbulateur 7 est incliné par rapport à la normal au conduit 5, d'un angle aigu a compris entre 30 et 80 degrés, de préférence 45 degrés. In order to reduce the pressure losses, each turbulator 7 is inclined relative to the normal to the duct 5, with an acute angle of between 30 and 80 degrees, preferably 45 degrees.
Comme montré par les figures 3 et 4, chaque turbulateur 7 est formé d'une paroi extrados 71 et d'une paroi intrados 72. La paroi extrados 71 ayant un rayon de courbure inférieur au rayon de courbure de la paroi intrados 72. Chaque turbulateur 7 fait saillie à l'intérieur du conduit 5 de sorte que la profondeur H de la paroi de fond 51 est supérieure à la profondeur h d'une partie sommitale 73 du turbulateur 7. Ainsi, un turbulateur 7 n'obstrue pas le conduit 5 et le fluide caloporteur peut circuler à l'intérieur de ce dernier. As shown in FIGS. 3 and 4, each turbulator 7 is formed of an extrados wall 71 and an intrados wall 72. The extrados wall 71 having a radius of curvature less than the radius of curvature of the intrados wall 72. Each turbulator 7 protrudes inside the conduit 5 so that the depth H of the bottom wall 51 is greater than the depth h of a top portion 73 of the turbulator 7. Thus, a turbulator 7 does not obstruct the conduit 5 and the heat transfer fluid can circulate inside the latter.
Préférentiellement, les turbulateurs 7 viennent de matière avec la plaque thermoconductrice 3A ou 3B et sont formés lors de son emboutissage. Cela permet ainsi de limiter les coûts de production desdits turbulateurs 7 car leur réalisation est intégrée dans une étape de fabrication déjà existante, et ce sans pour autant allonger le temps de réalisation de ladite étape de fabrication. Preferably, the turbulators 7 are made of material with the thermoconductive plate 3A or 3B and are formed during its stamping. This thus makes it possible to limit the production costs of said turbulators 7 since their production is integrated into an already existing manufacturing step, without this lengthening the time required to perform said manufacturing step.
Ainsi, on voit bien que la plaque d'échange thermique 1 selon l'invention, permet une homogénéisation améliorée du fluide caloporteur du fait de turbulateurs 7 ayant une forme de demi-hélice qui impriment au fluide caloporteur une circulation hélicoïdale dans le conduit 5, cela améliorant de fait les échanges thermiques. De ce fait, la régulation thermique d'une réserve d'énergie électrique tel un module de batteries, comportant au moins une plaque d'échange thermique 1 selon l'invention, est améliorée. Thus, it can clearly be seen that the heat exchange plate 1 according to the invention allows an improved homogenization of the coolant due to turbulators 7 having a half-helix shape which impart to the heat transfer fluid a helical circulation in the duct 5, this in fact improving thermal exchanges. As a result, the thermal regulation of a reserve electrical energy such as a battery module, comprising at least one heat exchange plate 1 according to the invention, is improved.

Claims

REVENDICATIONS
Plaque d'échange thermique (1), conformée afin de supporter au moins une réserve d'énergie électrique ou de s'intercaler entre des réserves d'énergie électrique, comprenant deux plaques thermoconductrices (3A, 3B) accolées l'une à l'autre afin de former au moins un conduit (5) destiné à la circulation d'un fluide caloporteur, caractérisée en ce que ledit conduit (5) comporte au moins un turbulateur (7) ayant un profil de pale d'hélice. Heat exchange plate (1), shaped to support at least one reserve of electrical energy or to be interposed between electrical energy reserves, comprising two thermally conductive plates (3A, 3B) contiguous to each other another to form at least one conduit (5) for the circulation of a coolant, characterized in that said conduit (5) comprises at least one turbulator (7) having a propeller blade profile.
Plaque d'échange thermique (1) selon la revendication précédente, caractérisée en ce que chaque turbulateur (7) vient de matière d'au moins l'une desdites plaques thermoconductrices (3A, 3B) 3. Plaque d'échange thermique (1) selon l'une des revendications précédentes, caractérisée en ce que chaque turbulateur (7) s'étend de manière sensiblement transversale au conduit (5). Heat exchange plate (1) according to the preceding claim, characterized in that each turbulator (7) comes from at least one of said heat conductive plates (3A, 3B) 3. Heat exchange plate (1) according to one of the preceding claims, characterized in that each turbulator (7) extends substantially transversely to the conduit (5).
4. Plaque d'échange thermique (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le conduit (5) comprend un canal (50) délimité par des bords latéraux (52) reliés entre eux par une paroi de fond (51) et un couvercle (60). 4. heat exchange plate (1) according to any one of the preceding claims, characterized in that the conduit (5) comprises a channel (50) delimited by lateral edges (52) interconnected by a bottom wall (51) and a cover (60).
5. Plaque d'échange thermique (1) selon la revendication précédente, caractérisée en ce que chaque turbulateur (7) est formé d'une paroi extrados (71) et d'une paroi intrados (70), ladite paroi extrados (71) ayant un rayon de courbure inférieur au rayon de courbure de ladite paroi intrados (72). 6. Plaque d'échange thermique (1) selon l'une des revendications 4 et 5, caractérisée en ce que la profondeur (H) de la paroi de fond (51) du conduit (5) est supérieure à la profondeur (h) d'une partie sommitale (73) du turbulateur (7) faisant saillie à l'intérieur dudit conduit (5). 5. heat exchange plate (1) according to the preceding claim, characterized in that each turbulator (7) is formed of an extrados wall (71) and a lower surface (70), said upper wall (71) having a radius of curvature less than the radius of curvature of said intrados wall (72). 6. heat exchange plate (1) according to one of claims 4 and 5, characterized in that the depth (H) of the bottom wall (51) of the duct (5) is greater than the depth (h) of an upper part (73) of the turbulator (7) projecting inside said duct (5).
Plaque d'échange thermique (1) selon l'une des revendications précédentes, caractérisée en ce que les plaques thermoconductrices (3A, 3B) sont métalliques. Heat exchange plate (1) according to one of the preceding claims, characterized in that the heat-conducting plates (3A, 3B) are metallic.
Plaque d'échange thermique (1) selon la revendication précédente, caractérisée en ce que les plaques thermoconductrices (3A, 3B) sont brasées l'une sur l'autre. Heat exchange plate (1) according to the preceding claim, characterized in that the heat-conducting plates (3A, 3B) are brazed one on the other.
Plaque d'échange thermique (1) selon l'une des revendications précédentes, caractérisée en ce que le conduit (5) ainsi que les turbulateurs (7) sont formés par emboutissage d'au moins une des plaques thermoconductrices (3A, 3B). Heat exchange plate (1) according to one of the preceding claims, characterized in that the duct (5) and the turbulators (7) are formed by stamping at least one of the heat-conducting plates (3A, 3B).
10. Plaque d'échange thermique (1) selon la revendication précédente, caractérisée en ce qu'elle comporte une première plaque thermoconductrice (3A) emboutie afin de former au moins une empreinte en creux (5') ainsi que chaque turbulateur (7) et une seconde plaque thermoconductrice (3B) plane. 10. Heat exchange plate (1) according to the preceding claim, characterized in that it comprises a first thermally conductive plate (3A) stamped to form at least one cavity recess (5 ') and each turbulator (7). and a second heat conductive plate (3B) planar.
11. Module de réserve d'énergie électrique comprenant au moins une plaque d'échange thermique (1), caractérisé en ce que ladite plaque d'échange thermique (1) est conforme à l'une quelconque des revendications 1 à 10. 11. Power reserve module comprising at least one heat exchange plate (1), characterized in that said heat exchange plate (1) is in accordance with any one of claims 1 to 10.
PCT/EP2013/058057 2012-04-19 2013-04-18 Heat regulation device for a battery module WO2013156554A1 (en)

Applications Claiming Priority (2)

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FR1253616 2012-04-19
FR1253616A FR2989841B1 (en) 2012-04-19 2012-04-19 THERMAL CONTROL DEVICE FOR BATTERY MODULE.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014202542A1 (en) * 2014-02-12 2015-08-13 MAHLE Behr GmbH & Co. KG Cooling device, in particular for a battery of a motor vehicle
WO2015086670A3 (en) * 2013-12-10 2015-09-03 Akasol Gmbh Battery module
US10355330B2 (en) 2016-08-31 2019-07-16 Akasol Gmbh Battery module assembly and cooling plate for use in a battery module assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3060725B1 (en) * 2016-12-15 2020-09-25 Valeo Systemes Thermiques PLATE HEAT EXCHANGER, ENERGY STORAGE DEVICE AND THEIR MANUFACTURING PROCESS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1271085A2 (en) * 2001-06-23 2003-01-02 Behr GmbH & Co. Device for cooling vehicle equipment, more particularly battery or fuel cell
EP1610407A1 (en) * 2004-06-25 2005-12-28 Samsung SDI Co., Ltd. Secondary battery module
EP1748270A1 (en) * 2005-07-27 2007-01-31 Behr GmbH & Co. KG Heat exchanger
CN102005603A (en) * 2010-11-08 2011-04-06 马洪沛 Power battery pack
DE102010019369A1 (en) * 2010-05-05 2011-11-10 Mahle International Gmbh cooling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1271085A2 (en) * 2001-06-23 2003-01-02 Behr GmbH & Co. Device for cooling vehicle equipment, more particularly battery or fuel cell
EP1610407A1 (en) * 2004-06-25 2005-12-28 Samsung SDI Co., Ltd. Secondary battery module
EP1748270A1 (en) * 2005-07-27 2007-01-31 Behr GmbH & Co. KG Heat exchanger
DE102010019369A1 (en) * 2010-05-05 2011-11-10 Mahle International Gmbh cooling device
CN102005603A (en) * 2010-11-08 2011-04-06 马洪沛 Power battery pack

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015086670A3 (en) * 2013-12-10 2015-09-03 Akasol Gmbh Battery module
EP3553877A1 (en) * 2013-12-10 2019-10-16 Akasol AG Battery module
US11211646B2 (en) 2013-12-10 2021-12-28 Akasol Ag Battery module
DE102014202542A1 (en) * 2014-02-12 2015-08-13 MAHLE Behr GmbH & Co. KG Cooling device, in particular for a battery of a motor vehicle
US10109898B2 (en) 2014-02-12 2018-10-23 MAHLE Behr GmbH & Co. KG Cooling device, in particular for a battery of a motor vehicle
US10355330B2 (en) 2016-08-31 2019-07-16 Akasol Gmbh Battery module assembly and cooling plate for use in a battery module assembly

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FR2989841B1 (en) 2016-05-27

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