EP2828920A1 - Battery module thermal regulating device - Google Patents

Battery module thermal regulating device

Info

Publication number
EP2828920A1
EP2828920A1 EP12791795.3A EP12791795A EP2828920A1 EP 2828920 A1 EP2828920 A1 EP 2828920A1 EP 12791795 A EP12791795 A EP 12791795A EP 2828920 A1 EP2828920 A1 EP 2828920A1
Authority
EP
European Patent Office
Prior art keywords
management device
battery module
thermal management
heat exchange
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12791795.3A
Other languages
German (de)
French (fr)
Inventor
Vincent Feuillard
Gilles Elliot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2828920A1 publication Critical patent/EP2828920A1/en
Withdrawn legal-status Critical Current

Links

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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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 fluid thermal regulation device for a battery in the field of electric and hybrid vehicles.
  • the thermal regulation of batteries is an important point because, if the batteries are subjected to too low temperatures, their autonomy can decrease sharply and, if they are subjected to too high temperatures, there is a risk of thermal runaway that can lead to the destruction of the battery.
  • the batteries are generally in the form of cells juxtaposed parallel to each other in a protective housing, forming a battery module.
  • the cells are generally juxtaposed so that the terminals are alternated in order to connect the cells in series between them easily and also to save conductive material, such as copper.
  • conductive material such as copper.
  • These temperature control 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 circuit of conduits, the circuit of conduits 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 for example a radiator. Fluids heat transfer agents can also, if necessary, bring heat to heat the cells, for example by being connected to an 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 refrigerant. Liquids are better heat conductors than gases, it is a solution that is preferred because it is more 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, the battery modules resting on the heat exchange plates.
  • Such an arrangement has a disadvantage since it cools an area that needs it the least.
  • Another known possibility is to place the heat exchange plates between the cells.
  • Such an arrangement has a drawback related to the complexity of assembling such a battery module by alternating heat exchange plates and cells. Such heat exchange plate locations are not optimal because the maximum heating zones of the battery modules are located between the cell connection lugs.
  • One of the aims of the invention is therefore to overcome the drawbacks of the prior art and to propose a thermal management device for an optimized battery module, in terms of performance, assembly time and wiring of the battery modules.
  • the invention relates to a heat exchange device for a battery module consisting of cells juxtaposed in parallel and connected in series with each other, whose positive and negative terminals, in particular alternating, are each covered with a terminal, forming two aligned series of terminals, and connected together by means of connection fixed to the lugs by fasteners.
  • the heat exchange device comprises a heat exchange plate, in particular comprising an inlet and a heat transfer fluid outlet, the heat exchange plate being placed in contact with the battery module between the two aligned series of pods. .
  • the inlet and the heat transfer fluid outlet of the heat exchange plate are arranged on the same side of the heat exchange plate, on the one hand to facilitate assembly and on the other hand part to homogenize the temperature of the heat exchange plate.
  • the thermal management device further comprises a non-conductive holding plate for holding the connection means and the heat exchange plate, the holding plate being placed so as to maintain the heat exchange plate against the battery module. Furthermore, it also ensures an electrical connection between the lugs of juxtaposed cells via the connection means.
  • the holding plate has holes for passage of the pods. Furthermore, the fastening elements of the connection means also ensure the fixing of the holding plate.
  • the holding plate comprises an insulating separating element between the heat exchange plate and the connection means.
  • the insulating separating element is composed of two ribs coming from material with the holding plate.
  • the connection means are integral with the holding plate.
  • the holding plate is overmolded around the connection means.
  • the holding plate is made of plastic.
  • FIG. 1 shows an exploded perspective view of a battery module according to the present invention
  • FIG. 2 shows a perspective view of the battery module of FIG. 1 assembled
  • FIG. 3 shows a perspective view of the battery module of FIG. 1 with an associated heat exchange plate, a holding plate having been removed,
  • FIG. 4 shows a perspective view of the faces of a heat exchange plate according to the present invention.
  • FIGS. 5a and 5b show schematic views of electrical connections of the battery module according to the present invention.
  • FIG. 1 shows an exploded perspective view of a battery module 1
  • FIG. 2 shows a perspective view of the battery module 1 assembled with a thermal regulation device installed.
  • the battery module 1 comprises at least one cell 3.
  • the battery module 1 comprises several cells 3 juxtaposed, advantageously parallel to each other.
  • Each cell 3 comprises a positive electrical terminal and a negative electrical terminal covered with a terminal 4.
  • the cells 3 are juxtaposed parallel to each other so that the positive terminal of a cell 3 is placed vis-à-vis the negative terminal of the cell or 3 juxtaposed on its sides.
  • the positive and negative terminals are therefore alternating forming two aligned series of lugs 4.
  • FIG. 5b Such an arrangement of the cells 3 of the battery module 1 is shown in FIG. 5b.
  • the cells 3 are juxtaposed parallel to each other so that the positive terminals of the cells 3 are arranged on the same side of the battery module 1. Therefore, the positive terminals of the cells 3 are arranged on the same side of the battery module 1.
  • the positive and negative terminals are thus aligned forming two aligned series of lugs 4.
  • FIG. 5a Such an arrangement of the cells 3 of the battery module 1 is shown in FIG. 5a.
  • FIGS. 5a and 5b thus show schematic views of the electrical connection of the battery module 1 according to the present invention.
  • the cells 3 are connected in series by means of connection means 6.
  • the connection means 6 make it possible to electrically connect the positive terminal of a cell 3 to the negative terminal of a neighboring cell 3.
  • connection means 6 may in particular be brass plates comprising two orifices permitting the passage of the lugs 4.
  • the means of Connections 6 are generally held in place by fastening elements 8, for example nuts 8 which screw on the terminals 4.
  • the cells 3 positioned at the end of the battery module 1 each have an opposite charge-free terminal, so as to form the connection terminals of the battery-module 1 to an electrical network of a motor vehicle
  • the fact that the positive and negative terminals of the cells 3 of the battery module 1 are alternated enables the different cells 3 to be connected in series by virtue of the shorter connection means 6.
  • the negative terminals of each cell 3 have lugs 4 of a larger diameter than the lugs 4 of the positive terminals, or vice versa.
  • the cells 3 are interconnected by tie rods, not shown.
  • the tie rods also connect the two lateral flanges 13
  • a thermal management device comprising a heat exchange plate 10 is provided.
  • the lugs 4 are arranged in series on two opposite sides of the battery module 1. Between the two series of lugs 4, the battery module 1 defines a space in which the heat exchange plate 10 is placed between the lugs 4, as shown in FIG. 3, and is in contact with the battery module 1.
  • the heat exchange plate 10 generally made of metal, defines an interior volume for defining a heat transfer fluid circuit.
  • the plaque heat exchange 10 makes it possible to ensure a heat exchange between the battery module 1 and an external thermal management circuit.
  • the heat exchange plate 10 comprises a heat transfer fluid inlet 12A and a heat transfer fluid outlet 12B connected to the external thermal management circuit.
  • the heat transfer fluid inlet 12A and the heat transfer fluid outlet 12B can be placed on the same side of the heat exchange plate 10 to facilitate assembly and connections.
  • the heat transfer fluid inlet 12A and the heat transfer fluid outlet 12B can be placed on different sides of the heat exchange plate 10.
  • heat exchange plate 20 between the lugs 4 allows thermal management of the battery module 1 in a specific area in which it is particularly necessary. Indeed, for example, when using the battery module 1, the largest heat production is located between the electrical terminals because of the electrochemical reactions inside the cell 3. In addition, a strong current passing through the connection means 6, the resistance to the current flow of the connection means 6 also leads to heat production.
  • the present invention makes it possible to thermally manage the battery module 1 in the areas in which the production of heat is important.
  • the connection means 6 may include extensions in the direction of the zone between the lugs 4 of the battery module 1 in order to promote the cooling of the connection means 6.
  • FIG. 3 shows a perspective view of the battery pack 1 of FIG. 1 in which the associated holding plate 20 has been removed.
  • FIG. 3 shows the heat exchange plate 10.
  • the heat exchange plate 10 is held in place between the lugs 4 by the holding plate 20.
  • the holding plate 20 is advantageously non-conductive.
  • the holding plate 20 is made of insulating material, for example plastic material.
  • the holding plate 20 is placed above the heat exchange plate 10. The heat exchange plate 10 is thus taken between, on the one hand, the battery module 1 and, on the other hand, the plate keeping 20.
  • the holding plate 20 has a surface substantially equal to the surface of the battery module 1.
  • the holding plate 20 has orifices 22 in which the lugs 4 can pass.
  • the holding plate 20 also allows the connection means 6 to be maintained.
  • the holding plate 20 can be fixed by the fastening elements 8 which also secure the connection means 6. Consequently, according to this arrangement
  • the connection means 6 are taken between, on the one hand, the battery module 1 and, on the other hand, the holding plate 20.
  • the heat exchange plate 10 and the connection means 6 are thus maintained. on the battery module 1 with a uniform pressure exerted on its entire surface by the holding plate 20.
  • the holding plate 20 also allows electrical insulation between the heat exchange plate 10 and the connection means 6 of the battery module 1.
  • the holding plate 20 comprises at least one separation element 24, presented in more detail in FIG. 4. More specifically, FIG. 4 shows a perspective view of the faces of the heat exchange plate 10 and the holding plate 20 according to the present invention.
  • FIG. 4 shows a perspective view of the faces of the heat exchange plate 10 and of the holding plate 20 which are in contact with the battery module 1.
  • the separating element 24 is advantageously insulating and may be composed of two ribs 24.
  • the separating element 24 is made of material with the holding plate 20.
  • the separating element 24 may be fixed on the plate keeping 20.
  • the separating element 24 is interposed between, on the one hand, the lugs 4 and / or the connection means 6 and, on the other hand, the heat exchange plate 10
  • the holding plate 20 and the connection means 6 are integral with each other.
  • the holding plate 20 may be overmolded around the connection means 6.
  • the thermal management device allows a thermal management of the battery module 1 in a zone particularly subject to significant thermal stress, that is to say between and / or near the means 6.
  • the management system thermal allows additional maintenance of the cells 3 between them and a greatly reduced wiring time.
  • At least one insulating layer 30 in order to increase the thermal conductivity and / or the thermal insulation of the thermal management device according to the present invention.
  • a first insulating layer 32 is disposed between the heat exchange plate 10 and the holding plate 20.
  • the first insulating layer 32 makes it possible to improve the thermal insulation and to reduce losses. thermal outward of the battery module 1.
  • the thermal insulation function being performed by the holding plate 20 is only a dimensional compensation means.
  • the first insulating layer 32 may then be in the form of a compressible plastic film.
  • a second insulating layer 34 is disposed between the heat exchange plate 10 and the battery module 1.
  • the second insulating layer 30 makes it possible to improve the heat transfer between the heat exchange plate 10 and the battery module 1.
  • the insulating layer 30 also makes it possible to compensate for flatness defects of the battery module 1, the heat exchange plate 10 and / or the holding plate 20.
  • the insulating layer 30 advantageously provides an electrical insulation function. For example, in the case of the use of a single layer 34, it ensures:
  • the means of connection 6 are arranged, at least in part, in the area between the lugs 4 of the battery module 1.
  • connection elements 6 may comprise extensions in the direction of the zone between the lugs 4 of the battery module 1 in order to promote cooling the connection means 6.
  • connection means 6 and / or the extensions of the connection means 6 are arranged between the cells 3 and the heat exchange plate 10.
  • the heat exchange plate 10 is between the cells 3 and the connection means 6 and / or the extensions of the connection means 6.
  • connection means 6 by direct contact with the heat exchange plate 10 or via the extensions of the connection means 6 in direct contact with the heat exchange plate 10.
  • electrical insulation is provided either by the holding plate 20 or by the insulating layer 30, advantageously the second insulating layer 32.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Battery module thermal regulating device. The present invention relates to a device for thermal management for a battery module (1) composed of at least one cell (3) comprising at least two lugs (4), the thermal management device comprising a heat exchange plate (10). The heat exchange plate (10) is placed in contact with the battery module (1) between the lugs (4) of the cell (3).

Description

Dispositif de régulation thermique d'un module-batterie.  Thermal regulation device of a battery module.
La présente invention concerne la régulation thermique de batteries et plus particulièrement un dispositif de régulation thermique à liquide caloporteur pour une batterie dans le domaine des véhicules électriques et hybrides. The present invention relates to the thermal regulation of batteries and more particularly to a thermal fluid thermal regulation device for a battery 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 car, si les batteries sont soumises à des températures trop basses, leur autonomie peut décroître fortement et, si elles sont soumises à des températures trop élevées, il existe un risque d'emballement thermique pouvant aller jusqu'à la destruction de la batterie. The thermal regulation of batteries, particularly in the field of electric and hybrid vehicles, is an important point because, if the batteries are subjected to too low temperatures, their autonomy can decrease sharply and, if they are subjected to too high temperatures, there is a risk of thermal runaway that can lead to the destruction of the battery.
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, formant un module-batterie. Les cellules sont généralement juxtaposées de sorte que les bornes soient alternées afin de brancher en série les cellules entres elles aisément et également pour économiser du matériau conducteur, comme le cuivre. Afin de réguler la température des cellules, en fonctionnement, il est connu d'ajouter un dispositif de régulation de température du module-batterie. In electric and hybrid vehicles, the batteries are generally in the form of cells juxtaposed parallel to each other in a protective housing, forming a battery module. The cells are generally juxtaposed so that the terminals are alternated in order to connect the cells in series between them easily and also to save conductive material, such as copper. In order to regulate the temperature of the cells, in operation, it is known to add a device for regulating the temperature of the battery module.
Ces dispositifs de régulation de température sont généralement incorporés à l'intérieur d'un boîtier contenant un ou plusieurs modules-batterie et utilisent des fluides caloporteurs circulant, par exemple au moyen d'une pompe, dans un circuit de conduits, le circuit de conduits passant notamment sous ou à l'intérieur d'une plaque d'échange thermique en contact direct avec les cellules. These temperature control 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 circuit of conduits, the circuit of conduits 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. Les fluides caloporteurs peuvent également, si besoin, apporter de la chaleur pour réchauffer les cellules, par exemple en étant reliés à une résistance électrique ou à un chauffage par Coefficient Positif de Température (CTP). Les fluides caloporteurs généralement utilisés sont l'air ambiant ou des liquides, comme par exemple l'eau, ou un fluide réfrigérant. Les liquides étant meilleur conducteur de chaleur que les gaz, c'est une solution qui est privilégiée car plus efficace. 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- batterie, les modules-batterie reposant sur les plaques d'échange thermique. Un tel agencement présente un inconvénient puisqu'on refroidit une zone qui en a le moins besoin. Une autre possibilité connue est de placer les plaques d'échange thermique entre les cellules. Un tel agencement présente un inconvénient lié à la complexité d'assemblage d'un tel module-batterie par une alternance de plaques d'échange thermique et de cellules. De tels emplacements de plaques d'échange thermique ne sont pas optimum, car les zones d'échauffement maximum des modules-batterie sont situées entre les cosses de connexions des cellules. 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 for example a radiator. Fluids heat transfer agents can also, if necessary, bring heat to heat the cells, for example by being connected to an electrical resistance or heating by Positive Temperature Coefficient (PTC). The heat transfer fluids generally used are ambient air or liquids, such as water, or a refrigerant. Liquids are better heat conductors than gases, it is a solution that is preferred because it is more efficient. 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, the battery modules resting on the heat exchange plates. Such an arrangement has a disadvantage since it cools an area that needs it the least. Another known possibility is to place the heat exchange plates between the cells. Such an arrangement has a drawback related to the complexity of assembling such a battery module by alternating heat exchange plates and cells. Such heat exchange plate locations are not optimal because the maximum heating zones of the battery modules are located between the cell connection lugs.
Un des buts de l'invention est donc de remédier aux inconvénients de l'art antérieur et de proposer un dispositif de gestion thermique pour un module- batterie optimisé, en performance, en temps d'assemblage et de câblage des modules-batterie. One of the aims of the invention is therefore to overcome the drawbacks of the prior art and to propose a thermal management device for an optimized battery module, in terms of performance, assembly time and wiring of the battery modules.
Ainsi, l'invention concerne un dispositif d'échange thermique pour un module- batterie composé de cellules juxtaposées parallèlement et branchées en série les unes aux autres, dont les bornes positives et négatives, notamment alternées, sont chacune recouverte d'une cosse, formant deux séries alignées de cosses, et branchées entre elles par des moyens de connexion fixés aux cosses par des éléments de fixation. De plus, le dispositif d'échange thermique comporte une plaque d'échange thermique, notamment comprenant une entrée et une sortie de fluide caloporteur, la plaque d'échange thermique étant placée en contact avec le module-batterie entre les deux séries alignées de cosses. Thus, the invention relates to a heat exchange device for a battery module consisting of cells juxtaposed in parallel and connected in series with each other, whose positive and negative terminals, in particular alternating, are each covered with a terminal, forming two aligned series of terminals, and connected together by means of connection fixed to the lugs by fasteners. In addition, the heat exchange device comprises a heat exchange plate, in particular comprising an inlet and a heat transfer fluid outlet, the heat exchange plate being placed in contact with the battery module between the two aligned series of pods. .
Selon un aspect de l'invention, l'entrée et la sortie de fluide caloporteur de la plaque d'échange thermique sont disposés du même coté de la plaque d'échange thermique, d'une part pour faciliter l'assemblage et d'autre part pour homogénéiser la température de la plaque d'échange thermique. According to one aspect of the invention, the inlet and the heat transfer fluid outlet of the heat exchange plate are arranged on the same side of the heat exchange plate, on the one hand to facilitate assembly and on the other hand part to homogenize the temperature of the heat exchange plate.
Selon un autre aspect de l'invention, le dispositif de gestion thermique comporte en outre une plaque de maintien non conductrice permettant le maintien des moyens de connexion et de la plaque d'échange thermique, la plaque de maintien étant placée de sorte à maintenir la plaque d'échange thermique contre le module-batterie. Par ailleurs, cela permet également d'assurer une liaison électrique entre les cosses des cellules juxtaposées par l'intermédiaire des moyens de connexion. According to another aspect of the invention, the thermal management device further comprises a non-conductive holding plate for holding the connection means and the heat exchange plate, the holding plate being placed so as to maintain the heat exchange plate against the battery module. Furthermore, it also ensures an electrical connection between the lugs of juxtaposed cells via the connection means.
Selon un aspect de l'invention, la plaque de maintien comporte des orifices de passage des cosses. Par ailleurs, les éléments de fixations des moyens de connexion assurent également la fixation de la plaque de maintien. According to one aspect of the invention, the holding plate has holes for passage of the pods. Furthermore, the fastening elements of the connection means also ensure the fixing of the holding plate.
Selon un autre aspect de l'invention, la plaque de maintien comporte un élément de séparation isolant entre la plaque d'échange thermique et les moyens de connexion. According to another aspect of the invention, the holding plate comprises an insulating separating element between the heat exchange plate and the connection means.
Selon encore un aspect de l'invention, l'élément de séparation isolant est composé de deux nervures venant de matière avec la plaque de maintien. Egalement, selon un aspect de l'invention, les moyens de connexion sont solidaires de la plaque de maintien. Enfin, la plaque de maintien est surmoulée autour des moyens de connexion. Notamment, la plaque de maintien est réalisée en plastique. According to another aspect of the invention, the insulating separating element is composed of two ribs coming from material with the holding plate. Also, according to one aspect of the invention, the connection means are integral with the holding plate. Finally, the holding plate is overmolded around the connection means. In particular, the holding plate is made of plastic.
La présente invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront encore à la lecture de la description détaillée qui suit comprenant des modes de réalisation donnés à titre illustratif en référence avec les figures annexées, présentés à titre d'exemples non limitatifs, qui pourront servir à compléter la compréhension de la présente invention et l'exposé de sa réalisation et, le cas échéant, contribuer à sa définition, sur lesquelles : The present invention will be better understood and other characteristics and advantages will become apparent on reading the following detailed description comprising embodiments given by way of illustration with reference to the appended figures, presented by way of non-limiting examples, which may be used to complete the understanding of the present invention and the presentation of its realization and, where appropriate, to contribute to its definition, in which:
- la figure 1 montre une vue éclatée en perspective d'un module-batterie selon la présente invention,  FIG. 1 shows an exploded perspective view of a battery module according to the present invention,
- la figure 2 montre une vue en perspective du module-batterie de la figure 1 assemblé,  FIG. 2 shows a perspective view of the battery module of FIG. 1 assembled,
- la figure 3 montre une vue en perspective du module-batterie de la figure 1 avec une plaque d'échange thermique associée, une plaque de maintien ayant été retirée,  FIG. 3 shows a perspective view of the battery module of FIG. 1 with an associated heat exchange plate, a holding plate having been removed,
- la figure 4 montre une vue en perspective des faces d'une plaque d'échange thermique selon la présente invention, et  FIG. 4 shows a perspective view of the faces of a heat exchange plate according to the present invention, and
- les figures 5a et 5b présentent des vues schématiques de connexions électriques du module-batterie selon la présente invention.  FIGS. 5a and 5b show schematic views of electrical connections of the battery module according to the present invention.
Sur les différentes figures, les éléments structurels et/ou fonctionnels communs aux différentes formes de réalisation peuvent présenter les mêmes références. Ainsi, sauf mention contraire, ces éléments disposent de propriétés structurelles, dimensionnelles et matérielles identiques. In the various figures, the structural and / or functional elements common to the different embodiments may have the same references. Thus, unless otherwise stated, these elements have identical structural, dimensional and material properties.
La figure 1 montre une vue en perspective éclatée d'un module-batterie 1 , tandis que la figure 2 montre une vue en perspective du module-batterie 1 assemblé avec un dispositif de régulation thermique installé. Le module-batterie 1 comporte au moins une cellule 3. Préférentiellement, la module-batterie 1 comporte plusieurs cellules 3 juxtaposées, avantageusement parallèlement les unes aux autres. Chaque cellule 3 comporte une borne électrique positive et une borne électrique négative recouvertes d'une cosse 4. FIG. 1 shows an exploded perspective view of a battery module 1, while FIG. 2 shows a perspective view of the battery module 1 assembled with a thermal regulation device installed. The battery module 1 comprises at least one cell 3. Preferably, the battery module 1 comprises several cells 3 juxtaposed, advantageously parallel to each other. Each cell 3 comprises a positive electrical terminal and a negative electrical terminal covered with a terminal 4.
Selon un exemple particulier, les cellules 3 sont juxtaposées parallèlement les unes aux autres de sorte que la borne positive d'une cellule 3 est placée en vis- à-vis de la borne négative de la ou des cellules 3 juxtaposées sur ses côtés. Les bornes positives et négatives sont donc alternées formant deux séries alignées de cosses 4. Un tel agencement des cellules 3 du module-batterie 1 est présenté en figure 5b. In a particular example, the cells 3 are juxtaposed parallel to each other so that the positive terminal of a cell 3 is placed vis-à-vis the negative terminal of the cell or 3 juxtaposed on its sides. The positive and negative terminals are therefore alternating forming two aligned series of lugs 4. Such an arrangement of the cells 3 of the battery module 1 is shown in FIG. 5b.
Alternativement, les cellules 3 sont juxtaposées parallèlement les unes aux autres de sorte que les bornes positives des cellules 3 sont disposées sur un même côté du module-batterie 1 . Par conséquent, les bornes positives des cellules 3 sont disposées sur un même côté du module-batterie 1 . Les bornes positives et négatives sont donc alignées formant deux séries alignées de cosses 4. Un tel agencement des cellules 3 du module-batterie 1 est présenté en figure 5a. Alternatively, the cells 3 are juxtaposed parallel to each other so that the positive terminals of the cells 3 are arranged on the same side of the battery module 1. Therefore, the positive terminals of the cells 3 are arranged on the same side of the battery module 1. The positive and negative terminals are thus aligned forming two aligned series of lugs 4. Such an arrangement of the cells 3 of the battery module 1 is shown in FIG. 5a.
Les figures 5a et 5b présentent donc des vues schématiques de connexion électrique du module-batterie 1 selon la présente invention. Les cellules 3 sont branchées en série grâce à des moyens de connexion 6. Les moyens de connexion 6 permettent de relier électriquement la borne positive d'une cellule 3 à la borne négative d'une cellule 3 voisine. FIGS. 5a and 5b thus show schematic views of the electrical connection of the battery module 1 according to the present invention. The cells 3 are connected in series by means of connection means 6. The connection means 6 make it possible to electrically connect the positive terminal of a cell 3 to the negative terminal of a neighboring cell 3.
Les moyens de connexion 6 peuvent notamment être des plaques de cuivres comprenant deux orifices permettant le passage des cosses 4. Les moyens de connexions 6 sont généralement maintenus en place par des éléments de fixation 8, par exemple des écrous 8 qui se vissent sur les cosses 4. The connection means 6 may in particular be brass plates comprising two orifices permitting the passage of the lugs 4. The means of Connections 6 are generally held in place by fastening elements 8, for example nuts 8 which screw on the terminals 4.
Les cellules 3 positionnées en extrémité du module-batterie 1 ont chacune une borne libre de charge opposée, de sorte à former les bornes de branchement du module-batterie 1 à un réseau électrique d'un véhicule automobile The cells 3 positioned at the end of the battery module 1 each have an opposite charge-free terminal, so as to form the connection terminals of the battery-module 1 to an electrical network of a motor vehicle
Avantageusement, le fait que les bornes positives et négatives des cellules 3 du module-batterie 1 soient alternées permet de brancher en série les différentes cellules 3 grâce aux moyens de connexion 6 plus court. Advantageously, the fact that the positive and negative terminals of the cells 3 of the battery module 1 are alternated enables the different cells 3 to be connected in series by virtue of the shorter connection means 6.
Afin de différencier les bornes positives et négatives d'une même cellule 3, il est possible d'avoir des cosses 4 de diamètre différent. Ainsi, par exemple, les bornes négatives de chaque cellule 3 ont des cosses 4 d'un plus grand diamètre que les cosses 4 des bornes positives, ou inversement. In order to differentiate the positive and negative terminals of the same cell 3, it is possible to have lugs 4 of different diameter. Thus, for example, the negative terminals of each cell 3 have lugs 4 of a larger diameter than the lugs 4 of the positive terminals, or vice versa.
Pour maintenir les différentes cellules 3 entres elles, il est possible d'enserrer les cellules 3 entre deux flasques latéraux 13. Préférentiellement, les cellules 3 sont reliées entre elles par des tirants, non représentés. Avantageusement, les tirants relient également les deux flasques latéraux 13 To maintain the different cells 3 between them, it is possible to enclose the cells 3 between two lateral flanges 13. Preferably, the cells 3 are interconnected by tie rods, not shown. Advantageously, the tie rods also connect the two lateral flanges 13
Afin de réguler la température du module-batterie 1 , un dispositif de gestion thermique comportant une plaque d'échange thermique 10 est prévu. Selon les divers modes de réalisation de la présente invention, les cosses 4 sont disposées en série, sur deux cotés opposés du module-batterie 1 . Entre les deux séries de cosses 4, le module-batterie 1 définit un espace dans lequel la plaque d'échange thermique 10 est placée entre les cosses 4, comme le montre la figure 3, et est en contact avec le module-batterie 1 . La plaque d'échange thermique 10, généralement réalisée en métal, définit un volume intérieur permettant de définir un circuit de fluide caloporteur. La plaque d'échange thermique 10 permet d'assurer un échange thermique entre le module-batterie 1 et un circuit de gestion thermique extérieur. In order to regulate the temperature of the battery module 1, a thermal management device comprising a heat exchange plate 10 is provided. According to the various embodiments of the present invention, the lugs 4 are arranged in series on two opposite sides of the battery module 1. Between the two series of lugs 4, the battery module 1 defines a space in which the heat exchange plate 10 is placed between the lugs 4, as shown in FIG. 3, and is in contact with the battery module 1. The heat exchange plate 10, generally made of metal, defines an interior volume for defining a heat transfer fluid circuit. The plaque heat exchange 10 makes it possible to ensure a heat exchange between the battery module 1 and an external thermal management circuit.
A cet effet, la plaque d'échange thermique 10 comporte une entrée de fluide caloporteur 12A et une sortie de fluide caloporteur 12B reliées au circuit de gestion thermique extérieur. For this purpose, the heat exchange plate 10 comprises a heat transfer fluid inlet 12A and a heat transfer fluid outlet 12B connected to the external thermal management circuit.
Avantageusement, l'entrée de fluide caloporteur 12A et la sortie de fluide caloporteur 12B peuvent être placées d'un même coté de la plaque d'échange thermique 10 afin de faciliter le montage et les branchements. Advantageously, the heat transfer fluid inlet 12A and the heat transfer fluid outlet 12B can be placed on the same side of the heat exchange plate 10 to facilitate assembly and connections.
Toutefois, selon la configuration du circuit de fluide caloporteur défini dans la plaque d'échange thermique 10 et/ou l'agencement du circuit de gestion thermique extérieur, l'entrée de fluide caloporteur 12A et la sortie de fluide caloporteur 12B peuvent être placées sur des cotés différents de la plaque d'échange thermique 10. However, depending on the configuration of the heat transfer fluid circuit defined in the heat exchange plate 10 and / or the arrangement of the external thermal management circuit, the heat transfer fluid inlet 12A and the heat transfer fluid outlet 12B can be placed on different sides of the heat exchange plate 10.
Le fait de placer la plaque d'échange thermique 20 entre les cosses 4 permet une gestion thermique du module-batterie 1 dans une zone spécifique dans laquelle elle est particulièrement nécessaire. En effet, par exemple, lors de l'utilisation du module-batterie 1 , la production de chaleur la plus importante est située entre les bornes électriques du fait des réactions électrochimiques à l'intérieur de la cellule 3. De plus, un fort courant passe au niveau des moyens de connexion 6, la résistance au passage du courant des moyens de connexion 6 entraîne également une production de chaleur. Placing the heat exchange plate 20 between the lugs 4 allows thermal management of the battery module 1 in a specific area in which it is particularly necessary. Indeed, for example, when using the battery module 1, the largest heat production is located between the electrical terminals because of the electrochemical reactions inside the cell 3. In addition, a strong current passing through the connection means 6, the resistance to the current flow of the connection means 6 also leads to heat production.
Ainsi, la présente invention permet de gérer thermiquement le module-batterie 1 dans les zones dans lesquelles la production de chaleur est importante. En particulier, il est possible de refroidir la partie du module-batterie 1 se retrouvant entre les cosses 4. Il est également possible de refroidir les moyens de connexion 6. A cet effet, les moyens de connexion peuvent comprendre des extensions en direction de la zone comprises entre les cosses 4 du module-batterie 1 afin de favoriser le refroidissement les moyens de connexion 6. Thus, the present invention makes it possible to thermally manage the battery module 1 in the areas in which the production of heat is important. In particular, it is possible to cool the portion of the battery module 1 found between the terminals 4. It is also possible to cool the connection means 6. For this purpose, the connection means may include extensions in the direction of the zone between the lugs 4 of the battery module 1 in order to promote the cooling of the connection means 6.
Plus spécifiquement, la figure 3 montre une vue en perspective du module- batterie 1 de la figure 1 dans laquelle la plaque de maintien 20 associée a été retirée. La figure 3 permet de voir la plaque d'échange thermique 10. La plaque d'échange thermique 10 est maintenue en place entre les cosses 4 par la plaque de maintien 20. La plaque de maintien 20 est avantageusement non conductrice. Pour ce faire, la plaque de maintien 20 est réalisée en matériau isolant, par exemple en matériau plastique. La plaque de maintien 20 vient se placer au dessus de la plaque d'échange thermique 10. La plaque d'échange thermique 10 est ainsi prise entre, d'une part, le module-batterie 1 et, d'autre part, la plaque de maintien 20. More specifically, FIG. 3 shows a perspective view of the battery pack 1 of FIG. 1 in which the associated holding plate 20 has been removed. FIG. 3 shows the heat exchange plate 10. The heat exchange plate 10 is held in place between the lugs 4 by the holding plate 20. The holding plate 20 is advantageously non-conductive. To do this, the holding plate 20 is made of insulating material, for example plastic material. The holding plate 20 is placed above the heat exchange plate 10. The heat exchange plate 10 is thus taken between, on the one hand, the battery module 1 and, on the other hand, the plate keeping 20.
Préférentiellement, la plaque de maintien 20 a une surface sensiblement égale à la surface du module-batterie 1 . De plus, la plaque de maintien 20 comporte des orifices 22 dans lesquels peuvent passer les cosses 4. Preferably, the holding plate 20 has a surface substantially equal to the surface of the battery module 1. In addition, the holding plate 20 has orifices 22 in which the lugs 4 can pass.
La plaque de maintien 20 permet également le maintien des moyens de connexion 6. A cet effet, la plaque de maintien 20 peut être fixée par les éléments de fixation 8 qui assurent également la fixation des moyens de connexion 6. Par conséquent, selon cet agencement particulier, les moyens de connexion 6 sont pris entre, d'une part, le module-batterie 1 et, d'autre part, la plaque de maintien 20. La plaque d'échange thermique 10 et les moyens de connexions 6 sont ainsi maintenus sur le module-batterie 1 avec une pression uniforme exercée sur toute sa surface par la plaque de maintien 20. De plus, la plaque de maintien 20 permet également une isolation électrique entre la plaque d'échange thermique 10 et les moyens de connexions 6 du module-batterie 1 . Pour cela, la plaque de maintien 20 comporte au moins un élément de séparation 24, présenté plus en détail sur la figure 4. Plus spécifiquement, la figure 4 montre une vue en perspective des faces de la plaque d'échange thermique 10 et de la plaque de maintien 20 selon la présente invention. The holding plate 20 also allows the connection means 6 to be maintained. For this purpose, the holding plate 20 can be fixed by the fastening elements 8 which also secure the connection means 6. Consequently, according to this arrangement In particular, the connection means 6 are taken between, on the one hand, the battery module 1 and, on the other hand, the holding plate 20. The heat exchange plate 10 and the connection means 6 are thus maintained. on the battery module 1 with a uniform pressure exerted on its entire surface by the holding plate 20. In addition, the holding plate 20 also allows electrical insulation between the heat exchange plate 10 and the connection means 6 of the battery module 1. For this, the holding plate 20 comprises at least one separation element 24, presented in more detail in FIG. 4. More specifically, FIG. 4 shows a perspective view of the faces of the heat exchange plate 10 and the holding plate 20 according to the present invention.
La figure 4 présente une vue en perspective des faces de la plaque d'échange thermique 10 et de la plaque de maintien 20 qui sont en contact avec le module-batterie 1 . L'élément de séparation 24 est avantageusement isolant et peut être composé de deux nervures 24. Préférentiellement, l'élément de séparation 24 vient de matière avec la plaque de maintien 20. Alternativement, l'élément de séparation 24 peut être fixé sur la plaque de maintien 20. FIG. 4 shows a perspective view of the faces of the heat exchange plate 10 and of the holding plate 20 which are in contact with the battery module 1. The separating element 24 is advantageously insulating and may be composed of two ribs 24. Preferably, the separating element 24 is made of material with the holding plate 20. Alternatively, the separating element 24 may be fixed on the plate keeping 20.
Afin d'assurer une fonction d'isolation, l'élément de séparation 24 est interposé entre, d'une part, les cosses 4 et/ou les moyens de connexions 6 et, d'autre part, la plaque d'échange thermique 10. Selon un mode particulier de réalisation, la plaque de maintien 20 et les moyens de connexions 6 sont solidaires les uns des autres. Par exemple, la plaque de maintien 20 peut être surmoulée autour des moyens de connexions 6. Ainsi, cela permet de réduire fortement le temps de câblage des cellules 3. En effet, la mise en place et la fixation de la plaque de maintien 20 sur le module-batterie 1 permet, simultanément, d'assurer le câblage des cellules 3 par la mise en place des moyens de connexions 6. In order to ensure an isolation function, the separating element 24 is interposed between, on the one hand, the lugs 4 and / or the connection means 6 and, on the other hand, the heat exchange plate 10 According to a particular embodiment, the holding plate 20 and the connection means 6 are integral with each other. For example, the holding plate 20 may be overmolded around the connection means 6. Thus, this greatly reduces the wiring time of the cells 3. Indeed, the establishment and fixing of the holding plate 20 on the battery module 1 makes it possible at the same time to wire the cells 3 by setting up the connection means 6.
Ainsi, on voit bien que le dispositif de gestion thermique selon l'invention permet une gestion thermique du module-batterie 1 dans une zone particulièrement soumise à des contraintes thermiques importantes, c'est-à-dire entre et/ou à proximité des moyens de connexions 6. De plus, le dispositif de gestion thermique permet un maintien supplémentaire des cellules 3 entres elles ainsi qu'un temps de câblage fortement réduit. Thus, it is clear that the thermal management device according to the invention allows a thermal management of the battery module 1 in a zone particularly subject to significant thermal stress, that is to say between and / or near the means 6. In addition, the management system thermal allows additional maintenance of the cells 3 between them and a greatly reduced wiring time.
Par ailleurs, il peut être avantageux de disposer au moins une couche isolante 30 afin d'augmenter la conductivité thermique et/ou l'isolation thermique du dispositif de gestion thermique selon la présente invention. Furthermore, it may be advantageous to have at least one insulating layer 30 in order to increase the thermal conductivity and / or the thermal insulation of the thermal management device according to the present invention.
Préférentiellement, tel que présenté sur la figure 4, une première couche isolante 32 est disposée entre la plaque d'échange thermique 10 et la plaque de maintien 20. La première couche isolante 32 permet d'améliorer l'isolation thermique et de diminuer les déperditions thermiques vers l'extérieur du module-batterie 1 . Preferably, as shown in FIG. 4, a first insulating layer 32 is disposed between the heat exchange plate 10 and the holding plate 20. The first insulating layer 32 makes it possible to improve the thermal insulation and to reduce losses. thermal outward of the battery module 1.
Alternativement, la fonction d'isolation thermique étant réalisée par la plaque de maintien 20, la première couche isolante 32 constitue uniquement un moyen de compensation dimensionnelle. La première couche isolante 32 peut alors se présenter sous la forme d'un film plastique compressible. Alternatively, the thermal insulation function being performed by the holding plate 20, the first insulating layer 32 is only a dimensional compensation means. The first insulating layer 32 may then be in the form of a compressible plastic film.
En complément ou alternativement, une deuxième couche isolante 34 est disposée entre la plaque d'échange thermique 10 et le module-batterie 1 . La deuxième couche isolante 30 permet d'améliorer le transfert thermique entre la plaque d'échange thermique 10 et le module-batterie 1 . In addition or alternatively, a second insulating layer 34 is disposed between the heat exchange plate 10 and the battery module 1. The second insulating layer 30 makes it possible to improve the heat transfer between the heat exchange plate 10 and the battery module 1.
En complément des propriétés de conductivité et d'isolation thermique, la couche isolante 30 permet également de compenser des défauts de planéité du module-batterie 1 , de la plaque d'échange thermique 10 et/ou de la plaque de maintien 20. Ainsi, par compression de la couche isolante 30, il est possible d'assurer une répartition optimale de la pression sur la plaque d'échange thermique 10. De plus, on assure également une conduction électrique parfaite par un bon contact surfacique entre les moyens de connexions 6 et le module- batterie 1 . Enfin, la couche isolante 30 assure avantageusement une fonction d'isolation électrique. Par exemple, dans le cas de l'utilisation d'une seule couche 34, celle-ci assure : In addition to the properties of conductivity and thermal insulation, the insulating layer 30 also makes it possible to compensate for flatness defects of the battery module 1, the heat exchange plate 10 and / or the holding plate 20. Thus, by compression of the insulating layer 30, it is possible to ensure optimum distribution of the pressure on the heat exchange plate 10. In addition, perfect electrical conduction is also ensured by good surface contact between the connection means 6 and the battery module 1. Finally, the insulating layer 30 advantageously provides an electrical insulation function. For example, in the case of the use of a single layer 34, it ensures:
- une fonction de conduction thermique entre la plaque d'échange thermique 10 et les cellules 3 du module-batterie 1 ,  a thermal conduction function between the heat exchange plate 10 and the cells 3 of the battery module 1,
- une fonction de compensation dimensionnelle permettant de corriger les défauts de planéité entre la plaque d'échange thermique 10 et les cellules 3 du module-batterie 1 ,  a dimensional compensation function making it possible to correct flatness defects between the heat exchange plate 10 and the cells 3 of the battery module 1,
- une fonction d'isolation électrique entre la plaque d'échange thermique 10 et les cellules 3 du module-batterie 1 , et  an electrical isolation function between the heat exchange plate 10 and the cells 3 of the battery module 1, and
- une fonction de rattrapage de jeu entre la plaque d'échange thermique 10 et les cellules 3 du module-batterie 1 ,  a play-catching function between the heat exchange plate 10 and the cells 3 of the battery module 1,
Par ailleurs, selon une variante de réalisation non représentée, dans la configuration de connexions électriques du module-batterie 1 selon la figure 5a, les bornes positives et négatives étant respectivement alignées en formant deux séries alignées de cosses 4, il ressort que les moyens de connexion 6 sont agencés, au moins en partie, dans la zone comprises entre les cosses 4 du module-batterie 1 . Moreover, according to an alternative embodiment not shown, in the configuration of electrical connections of the battery module 1 according to FIG. 5a, the positive and negative terminals being respectively aligned by forming two aligned series of terminals 4, it appears that the means of connection 6 are arranged, at least in part, in the area between the lugs 4 of the battery module 1.
De même, dans la configuration de connexions électriques du module-batterie 1 selon la figure 5a, tel que décrit précédemment, les éléments de connexion 6 peuvent comporter des extensions en direction de la zone comprises entre les cosses 4 du module-batterie 1 afin de favoriser le refroidissement les moyens de connexion 6. Likewise, in the configuration of electrical connections of the battery module 1 according to FIG. 5a, as described above, the connection elements 6 may comprise extensions in the direction of the zone between the lugs 4 of the battery module 1 in order to promote cooling the connection means 6.
Dans de telles configurations, il est possible de prévoir un contact direct entre les moyens de connexion 6 et/ou les extensions des moyens de connexion 6 et la plaque d'échange thermique 10. Selon une première alternative, les moyens de connexion 6 et/ou les extensions des moyens de connexion 6 sont disposés entre les cellules 3 et la plaque d'échange thermique 10. Selon une deuxième alternative, la plaque d'échange thermique 10 est comprise entre les cellules 3 et les moyens de connexion 6 et/ou les extensions des moyens de connexion 6. In such configurations, it is possible to provide direct contact between the connection means 6 and / or the extensions of the connection means 6 and the heat exchange plate 10. According to a first alternative, the connection means 6 and / or the extensions of the connection means 6 are arranged between the cells 3 and the heat exchange plate 10. According to a second alternative, the heat exchange plate 10 is between the cells 3 and the connection means 6 and / or the extensions of the connection means 6.
De tels agencements permettent d'assurer un refroidissement des moyens de connexion 6 grâce à un contact direct avec la plaque d'échange thermique 10 ou via les extensions des moyens de connexion 6 en contact direct avec la plaque d'échange thermique 10. Such arrangements make it possible to ensure cooling of the connection means 6 by direct contact with the heat exchange plate 10 or via the extensions of the connection means 6 in direct contact with the heat exchange plate 10.
Par ailleurs, selon ces alternatives de réalisation, une isolation électrique est assurée, soit par la plaque de maintien 20, soit par la couche isolante 30, avantageusement la deuxième couche isolante 32. Moreover, according to these alternative embodiments, electrical insulation is provided either by the holding plate 20 or by the insulating layer 30, advantageously the second insulating layer 32.
Bien évidemment, la présente invention n'est pas limitée aux modes de réalisation décrits précédemment et fournis uniquement à titre d'exemple. Elle englobe diverses modifications, formes alternatives et autres variantes que pourra envisager l'homme du métier dans le cadre de la présente invention et notamment toutes combinaisons des différents modes de fonctionnement décrits précédemment, pouvant être pris séparément ou en association. Of course, the present invention is not limited to the embodiments described above and provided solely by way of example. It encompasses various modifications, alternative forms and other variants that may be considered by those skilled in the art in the context of the present invention and in particular any combination of the different modes of operation described above, which can be taken separately or in combination.

Claims

Revendications claims
1 . Dispositif de gestion thermique pour un module-batterie (1 ) composé d'au moins une cellule (3) comportant au moins deux cosses (4), le dispositif de gestion thermique comportant une plaque d'échange thermique (10), 1. Thermal management device for a battery module (1) composed of at least one cell (3) comprising at least two lugs (4), the thermal management device comprising a heat exchange plate (10),
caractérisé en ce que la plaque d'échange thermique (10) est placée en contact avec le module-batterie (1 ) entre les cosses (4) de la cellule (3).  characterized in that the heat exchange plate (10) is placed in contact with the battery module (1) between the lugs (4) of the cell (3).
2. Dispositif de gestion thermique selon la revendication 1 , caractérisé en ce que la plaque d'échange thermique (10) comprend une entrée de fluide caloporteur (12A) et une sortie de fluide caloporteur (12B) disposées du même coté de la plaque d'échange thermique (10). 2. Thermal management device according to claim 1, characterized in that the heat exchange plate (10) comprises a coolant inlet (12A) and a heat transfer fluid outlet (12B) disposed on the same side of the heat sink plate. heat exchange (10).
3. Dispositif de gestion thermique selon la revendication 2 ou 3, dans lequel le dispositif de gestion thermique comporte une plaque de maintien (20) assurant le maintien de la plaque d'échange thermique (10) contre le module-batterie (1 ). 3. Thermal management device according to claim 2 or 3, wherein the thermal management device comprises a holding plate (20) ensuring the maintenance of the heat exchange plate (10) against the battery module (1).
4. Dispositif de gestion thermique selon la revendication 3, dans lequel la plaque de maintien (20) comporte des orifices (22) pour le passage des cosses (4) de la cellule (3). 4. Thermal management device according to claim 3, wherein the holding plate (20) has orifices (22) for the passage of the lugs (4) of the cell (3).
5. Dispositif de gestion thermique selon la revendication 3 ou 4, dans lequel la plaque de maintien (20) est fixée au module-batterie (1 ) par des éléments de fixations (8). 5. Thermal management device according to claim 3 or 4, wherein the holding plate (20) is fixed to the battery module (1) by fastening elements (8).
6. Dispositif de gestion thermique selon l'une des revendications 3 à 5, dans lequel la plaque de maintien (20) comporte un élément de séparation isolant (24) entre la plaque d'échange thermique (10) et les cosses (4). 6. Thermal management device according to one of claims 3 to 5, wherein the retaining plate (20) comprises an element of insulating separation (24) between the heat exchange plate (10) and the lugs (4).
7. Dispositif de gestion selon la revendication 6, dans lequel l'élément de séparation isolant (24) composée de deux nervures. 7. Management device according to claim 6, wherein the insulating separating element (24) consists of two ribs.
8. Dispositif de gestion thermique selon l'une des revendications 5 à 7, dans lequel le module-batterie (1 ) est composé d'une pluralité de cellules8. Thermal management device according to one of claims 5 to 7, wherein the battery-module (1) is composed of a plurality of cells
(3) juxtaposées formant deux séries alignées de cosses (4), et branchées entre elles par des moyens de connexion (6) fixés aux cosses(3) juxtaposed forming two aligned series of lugs (4), and connected together by connection means (6) fixed to the pods
(4) par les éléments de fixations (8). (4) by the fastening elements (8).
9. Dispositif de gestion thermique selon la revendication 8, dans lequel les moyens de connexion (6) sont solidaires de la plaque de maintien (20). 9. Thermal management device according to claim 8, wherein the connection means (6) are integral with the holding plate (20).
10. Dispositif de gestion thermique selon la revendication 9, dans lequel la plaque de maintien (20) est surmoulée autour des moyens de connexion (6). 10. Thermal management device according to claim 9, wherein the holding plate (20) is overmolded around the connection means (6).
1 1 . Dispositif de gestion thermique selon l'une des revendications 7 à 10, dans lequel chaque cellule (3) comporte une borne positive et une borne négative comportant respectivement une cosse (4), et en ce que la pluralité de cellules (3) est agencée de sorte que les bornes positives et les bornes négatives sont alternées. 1 1. Thermal management device according to one of claims 7 to 10, wherein each cell (3) comprises a positive terminal and a negative terminal respectively comprising a lug (4), and in that the plurality of cells (3) is arranged so that the positive and the negative terminals alternate.
12. Dispositif de gestion thermique selon l'une des revendications 3 à 1 1 , dans lequel la plaque de maintien (20) est non conductrice, avantageusement réalisée en plastique. 12. Thermal management device according to one of claims 3 to 1 1, wherein the holding plate (20) is non-conductive, preferably made of plastic.
13. Dispositif de gestion thermique selon l'une des revendications 3 à 12, dans lequel le dispositif de gestion thermique comporte au moins une couche isolante (30, 32, 34) disposée entre la plaque d'échange thermique (10) et le module-batterie (1 ) et/ou la plaque de maintien (20). 13. Thermal management device according to one of claims 3 to 12, wherein the thermal management device comprises at least one insulating layer (30, 32, 34) disposed between the heat exchange plate (10) and the battery module (1) and / or the holding plate (20).
EP12791795.3A 2011-12-07 2012-11-30 Battery module thermal regulating device Withdrawn EP2828920A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1103746A FR2984016A1 (en) 2011-12-07 2011-12-07 DEVICE FOR THERMALLY REGULATING A BATTERY MODULE
PCT/EP2012/074030 WO2013083479A1 (en) 2011-12-07 2012-11-30 Battery module thermal regulating device

Publications (1)

Publication Number Publication Date
EP2828920A1 true EP2828920A1 (en) 2015-01-28

Family

ID=47257838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12791795.3A Withdrawn EP2828920A1 (en) 2011-12-07 2012-11-30 Battery module thermal regulating device

Country Status (3)

Country Link
EP (1) EP2828920A1 (en)
FR (1) FR2984016A1 (en)
WO (1) WO2013083479A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3015127A1 (en) * 2013-12-16 2015-06-19 Valeo Systemes Thermiques DEVICE FOR COOLING AN ELECTRIC BATTERY MODULE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003163036A (en) * 2001-11-27 2003-06-06 Denso Corp Battery

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2153487B1 (en) * 2007-04-05 2013-06-19 Behr GmbH & Co. KG Electrochemical energy storage unit comprising a cooling device
DE102007063179B4 (en) * 2007-12-20 2014-08-07 Daimler Ag Battery as a flat cell assembly with a heat conducting plate and single cell
JP5334420B2 (en) * 2008-01-16 2013-11-06 三洋電機株式会社 Battery system
JP5405037B2 (en) * 2008-03-28 2014-02-05 三洋電機株式会社 Battery device
DE102008034888A1 (en) * 2008-07-26 2010-01-28 Daimler Ag Battery for use in motor vehicle e.g. motor vehicle with hybrid drive, has pressing device provided for directly pressing cell housing to cooling plate and comprising connecting units for connecting cell housing with cooling plate
DE102009035470A1 (en) * 2009-07-31 2011-02-03 Daimler Ag Battery for use in vehicle e.g. hybrid drive vehicle, has isolation elements whose height is larger than height of pole contacts during non-assembled condition of cells, so that isolation elements are projected above pole contacts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003163036A (en) * 2001-11-27 2003-06-06 Denso Corp Battery

Also Published As

Publication number Publication date
FR2984016A1 (en) 2013-06-14
WO2013083479A1 (en) 2013-06-13

Similar Documents

Publication Publication Date Title
EP2145360B1 (en) Module for an electric energy storage assembly
EP2850686B1 (en) Thermal management and connection device for a battery module
EP3014676B1 (en) Strip of electrochemical cells for the production of a battery module for an electric or hybrid vehicle, and method for the production of such a module
EP2993435A1 (en) Heat exchange plate for thermal management of a battery pack
WO2015043869A1 (en) Battery module for an electric or hybrid vehicle to ensure the cooling of the cells, and associated battery
EP3840557B1 (en) Electrical equipment comprising an electrical connection bar cooled by two surfaces of a heat sink
FR3011131A1 (en) THERMAL BATTERY MANAGEMENT DEVICE AND METHOD OF MANUFACTURING THE SAME
FR3013515A1 (en) COOLING DEVICE FOR AUTOMOTIVE BATTERY
FR3100608A1 (en) Thermal management system for electrical component
EP3925018A1 (en) Battery unit and motor vehicle provided with at least one such unit
EP3262362B1 (en) Thermal management device of an energy storage unit
FR2963486A1 (en) Electrical battery useful in a motor vehicle, comprises a casing, a set of energy generating cells, a longitudinal arrangement consisting of the energy generating cells, a cooling system, and an electrically insulating plate
FR3078828A1 (en) ELECTRICAL BATTERY FOR VEHICLE
EP2828920A1 (en) Battery module thermal regulating device
EP3278393A1 (en) Battery module, in particular for a motor vehicle, and corresponding heat exchanger for a battery module
FR3015127A1 (en) DEVICE FOR COOLING AN ELECTRIC BATTERY MODULE
FR3082665A1 (en) COOLING DEVICE, PARTICULARLY FOR A MOTOR VEHICLE
FR3121815A1 (en) Heat treatment device for an electrical and/or electronic element
WO2024068421A1 (en) Device for spacing battery cells of a vehicle battery pack
EP4164014A1 (en) Battery pack architecture
EP3769364A1 (en) Vehicle electrical energy storage device thermally regulated using heat pipes
WO2021048499A1 (en) Thermal management device for an electrical component and system including such a device
FR3128318A1 (en) Pocket cell and electricity storage battery
EP3837736A1 (en) Battery pack with cooler
FR2998761A1 (en) ELECTRONIC ASSEMBLY

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140909

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160816

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170103