WO2019069018A1 - Case for a motor vehicle battery pack - Google Patents

Case for a motor vehicle battery pack Download PDF

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Publication number
WO2019069018A1
WO2019069018A1 PCT/FR2018/052434 FR2018052434W WO2019069018A1 WO 2019069018 A1 WO2019069018 A1 WO 2019069018A1 FR 2018052434 W FR2018052434 W FR 2018052434W WO 2019069018 A1 WO2019069018 A1 WO 2019069018A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
chiller
transfer fluid
heat transfer
heat exchanger
Prior art date
Application number
PCT/FR2018/052434
Other languages
French (fr)
Inventor
Quentin NAVARRE
Patrick ANCENAY
Thibaut PERRIN
François Busson
Mohamed Ibrahimi
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2019069018A1 publication Critical patent/WO2019069018A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a housing for an electric module of a battery pack for a motor vehicle, and such a battery pack.
  • the electrical energy of electrically and / or hybrid powered vehicles is provided by one or more batteries.
  • the battery is generally formed of a plurality of electrical cells forming one or more modules arranged in a protective housing to form what is called a battery pack.
  • a problem is that during operation, the batteries are heated and may be damaged.
  • the thermal regulation of the battery is, therefore, an important point.
  • the temperature of the battery must remain between 20 ° C and 40 ° C to ensure the reliability, autonomy, and performance of the vehicle, while optimizing the life of the battery.
  • thermoregulatory plates or tube exchangers
  • Such a circuit is part of a thermal regulation loop 6 of the batteries, illustrated schematically in FIG. 1, which furthermore comprises a pump P for forcing the circulation of the heat transfer fluid inside the heat exchange plate. 61 (it could be several plates however).
  • the coolant can thus absorb heat emitted by the electrical modules in order to cool them and evacuate this heat at a heat exchanger, called "chiller" 8, located outside the battery pack housing. .
  • the connection between the heat exchanger, called “chiller”, 8 disposed outside the battery pack housing, and the heat exchange plate 61 is via a flange fixed on the outer surface of the housing protection.
  • the heat transfer fluid can also, if necessary, bring heat to heat the electrical modules.
  • the thermal control loop 6 comprises an additional heating device H, using, for example, electrical resistors or resistors with a positive temperature coefficient.
  • Such an additional heating device H is essential for regulating the temperature of the electric modules, in particular by low temperatures in winter, where the temperature of the electric modules must be increased before starting to charge them.
  • the vehicles are frequently equipped with a heating, ventilation and / or air conditioning system for thermally regulating the interior space of the passenger compartment of the vehicle by delivering an interior air flow at the desired temperature.
  • the heating, ventilation and / or air conditioning installation generally comprises an air conditioning loop 7 inside which a refrigerant circulates, and more specifically a main loop 74 comprising a compressor 76 forcing the circulation of refrigerant fluid in this loop.
  • main 74 to pass through a condenser 77 before passing through an expansion device, or expander, TXVl then an evaporator 78 (for cooling air to circulate to the passenger compartment of the vehicle, before reaching the compressor again 76.
  • the refrigerant thus performs a thermodynamic cycle in which it discharges its heat at the condenser 77, and in which it captures the heat at the evaporator 78.
  • the thermal regulation loop 6 of the battery pack electrical modules is in connection with the air conditioning loop 7, so as to allow a heat exchange between the coolant and the heat transfer fluid, in particular for the cooling of the electric modules.
  • the heat transfer fluid of the thermal control circuit 6 of the electric modules can thus be cooled by circulation in the heat exchanger, called coolant / coolant type chiller 8, which is connected to the air conditioning loop 7.
  • main loop 74 is connected to the so-called chiller heat exchanger 8 via another bypass loop 71, which is connected to the outlet of the condenser 77 and to the inlet of the compressor 76.
  • This bypass loop 71 comprises a TXV 2 expander that the refrigerant crosses before circulating in the heat exchanger said chiller 8 and then return to the main loop being fed back to the input of the compressor 76.
  • thermal vehicle comprising a first air conditioning loop and a second thermal regulation loop of a vehicle battery.
  • the invention proposes for this purpose a housing including a battery pack for a motor vehicle, comprising an interior space for containing at least one electrical module and an internal circuit for transporting a heat transfer fluid comprising at least one thermal control device said at least one electrical module.
  • the housing carries on its outer surface a heat exchanger, called chiller, connected to the internal circuit for transporting a coolant fluid of said housing, said heat exchanger, called chiller, being intended to be connected on the one hand to an air-conditioning loop of said vehicle in which a refrigerant fluid is intended to circulate and secondly a thermal regulation loop of said at least one electrical module in which the coolant is intended to be set in motion so that it circulates in the internal circuit of said housing.
  • a heat exchanger called chiller
  • the invention consists in fixing a heat exchanger, called chiller, on the battery pack protection box and connecting it directly with the heat transfer fluid transport circuit, called the cooling circuit, located in the housing.
  • the connection with the air conditioning loop (refrigerant side) remains external to the housing.
  • connection flange fixed on the outer surface of the protective housings of the prior art which provides the connection between the "chiller”, disposed outside the protective casing, and the heat exchange plates or tubes arranged at the outside; within the case, and
  • the heat exchanger placed on the housing, connects the thermal regulation loop of the battery with the air conditioning circuit of the vehicle, so as to allow a heat exchange between the coolant and the heat transfer fluid, in particular for cooling the electric cells forming the battery module or modules.
  • the heat transfer fluid can thus absorb heat emitted by the electric cells in order to cool them and evacuate this heat at the level of the heat exchanger, called chiller, in which the coolant is in thermal contact with the cooling fluid.
  • Said heat exchanger comprises a coolant circulation passage of the air conditioning circuit of said vehicle and heat transfer fluid inlet and outlet conduits connected to the internal heat carrier transport circuit of said housing, so as to the heat transfer fluid flowing in said inlet and outlet ducts thermally exchange with the refrigerant circulating in said circulation passage.
  • the thermal control loop thermally exchanges with the air conditioning loop inside the heat exchanger, called chiller.
  • the inlet and outlet ducts of the heat transfer fluid of said heat exchanger are partially housed, in a sealed manner, in holes passing through a wall of the housing and opening into the internal circuit for transporting a coolant of said housing.
  • the holes through a wall of the housing are closed by a closure plate covering at least partly the inner face of said wall and intended to come into thermal contact with said at least one electrical module.
  • the internal circuit for transporting a heat transfer fluid of said casing comprises heat transfer fluid passage channels which are formed in said wall of the casing and which each communicate with one of said holes.
  • a tube of the internal circuit for transporting a heat transfer fluid of said casing is disposed in each of said holes, the outer surface of said tube coming into contact with the inner peripheral surface of said corresponding hole and the inner surface. said tube being in sealing contact with the outer surface of the inlet duct and the outlet duct of the heat transfer fluid or said heat exchanger, said chiller.
  • each of said tubes is overmolded in the corresponding hole.
  • the housing comprises on its outer surface means for fixing the heat exchanger, said chiller.
  • the invention also relates to a battery pack for a motor vehicle comprising a housing as described above.
  • the invention also relates to a thermal conditioning system of a vehicle comprising a first air conditioning loop and a second thermal regulation loop of a vehicle battery housed in a housing as described above. 5.
  • Figure 1 is a schematic representation of a thermal conditioning system of a motor vehicle according to the prior art, described above;
  • FIG. 2 is a schematic representation of a protective case of a battery pack of a motor vehicle according to one embodiment of the invention
  • FIG. 3 schematically illustrates a first solution for connecting a heat exchanger, called chiller, to the protective case of a battery pack of FIG. 2;
  • FIG. 4 diagrammatically illustrates a second solution for connecting a heat exchanger, called a chiller, to the protective case of a battery pack of FIG. 2.
  • battery pack a housing in which are housed:
  • a battery consisting of at least one electrical module comprising a plurality of electric energy storage cells
  • thermal regulation means of this electrical module in the form of at least one thermoregulatory plate or a tube heat exchanger in thermal contact with the module.
  • battery designates an electrical energy storage device composed of one or more electric cells and, also, an assembly consisting of one or more electrical energy storage devices comprising, respectively, one or more electric cells.
  • thermoregulatory plate is generally cooled and therefore cooling for the module.
  • FIG. 2 is a schematic representation of a housing 13 for protecting a battery pack 1.
  • Such a housing is intended to be implemented in a thermal conditioning system of an electric or hybrid vehicle comprising as described above, in connection with FIG. 1, a first air conditioning loop and a second thermal regulation loop. a battery of the vehicle.
  • the housing 13 is of generally parallelepipedal shape and comprises walls delimiting a closed and sealed enclosure in which is received at least one electrical module (not shown) forming the battery.
  • the enclosure further comprises an internal circuit for transporting a heat transfer fluid (not shown), such as brine, comprising at least one thermal control device, in the form of a thermoregulatory plate (not shown) of the electrical module, in thermal contact with the latter.
  • a heat transfer fluid such as brine
  • at least one thermal control device in the form of a thermoregulatory plate (not shown) of the electrical module, in thermal contact with the latter.
  • a heat exchanger 2 of the "chiller" type (in English) is carried by an outer surface of the housing 13 of protection.
  • connection flange 21 in which are provided a coolant inlet port 21A, a port refrigerant outlet 21B and a U-shaped passage (not visible) of the refrigerant liquid connecting the input port 21A to the output port 21B.
  • This coolant passage is intended to be part of the air conditioning circuit of the thermal conditioning system of the vehicle.
  • the block is crossed by an inlet duct 22A and an outlet duct
  • the two cylindrical holes 132 open at two bases 131 in the form of a flattened cylinder 131 projecting from the outside surface of the housing 13.
  • the two holes 132 open on the other hand into the internal heat transport circuit of the housing 13.
  • the fixing of the heat exchanger block 2 of the "chiller" type directly on the casing 13 is easy and makes it possible to dispense with the implementation of a connection flange on the casing according to the prior art, but also of reduce the number of connections and the risk of heat transfer fluid leakage.
  • the approach of the invention therefore makes it possible to reduce, in a general manner, the bulk and the weight of the thermal regulation loop of the electric cells forming the battery.
  • this reduces the size of the thermal conditioning system in the motor vehicle, facilitate installation and minimize the risk of non-sealing by reducing the number of fluid connections.
  • FIG. 3 illustrates a first solution for connecting the heat exchanger or chiller 2, and in particular its input and output ducts 22A. 22B of heat transfer fluid, with the internal circuit for transporting the coolant of the housing 13.
  • one end of the heat transfer fluid inlet conduit 22A of the heat exchanger or chiller 2 is housed in a hole 132 passing through a wall of the housing 13.
  • This hole 132 opens into a channel (not visible) formed in the same wall of the housing 13, the channel being connected to the internal heat transfer fluid transport circuit of the housing 13 and for supplying heat transfer fluid the heat pack of the battery pack.
  • one end of the heat transfer fluid outlet conduit 22B of the heat exchanger or chiller 2 is housed in the other hole 132 passing through the same wall of the housing 13.
  • This hole 132 is configured to direct the coolant in a channel (not visible) formed in the same wall of the housing 13, the channel being connected to the internal heat transfer fluid transport circuit of the housing 13 and for discharging the heat transfer fluid from the thermoregulatory plate of the battery pack.
  • the holes 132 and the corresponding channels 134 are closed off by a closing plate 133 made of aluminum, for example, which is arranged in a sealed manner against the inner surface of the housing 13.
  • this closure plate 133 constitutes the thermoregulatory plate intended to come into thermal contact with the module of the battery pack.
  • this heat exchange plate 133 may form a bottom of the housing 13. As a result, the battery rests on the heat exchange plate.
  • the heat exchange plate may be disposed on one or more sides of the housing 13, being in thermal contact with the battery. It should be noted that the seal between the inlet duct 22A of the heat exchanger or chiller 2 and the cylindrical hole 132 is provided by an O-ring 23 carried by the inlet duct 22A.
  • the fixing of the block constituting the heat exchanger or chiller 2 on the housing 13 is provided by screwing or any other suitable means.
  • the outer surface of the housing 13 has two threads for receiving fastening screws through holes on the sides of the block.
  • FIG. 4 illustrates a second connection solution for the heat exchanger or chiller 2, and in particular for its heat transfer fluid inlet and outlet conduits 22A and 22B, with the internal heat carrier transport circuit of the housing 13.
  • one end of the heat transfer fluid inlet conduit 22A of the heat exchanger or chiller 2 is housed in a tube 135 extending partly in the hole 132 which passes through a wall of the housing 13.
  • the tube 135 is here in part overmolded in the hole 132 and is connected to the internal heat transport fluid transport circuit of the housing 13 so as to supply heat transfer fluid to the thermoregulatory plate of the battery pack.
  • one end of the heat transfer fluid outlet conduit 22B of the heat exchanger or chiller 2 is housed in another tube 135 and that the latter is connected to the internal heat transfer fluid transport circuit of the casing 13 so as to evacuate the coolant coming from the thermoregulator plate of the battery pack.
  • the fixing of the block constituting the heat exchanger or chiller 2 on the housing 13 is provided by screwing or any other suitable means.
  • the heat exchanger or chiller 2 is connected to the air conditioning loop in which a coolant circulates and to the thermal regulation loop in which a heat transfer fluid circulates, so that the heat transfer fluid is cooled by the refrigerant at the heat exchanger or chiller 2.
  • the refrigerant passes through the heat exchanger or chiller 2 in a path that can take a shape of "U" or any other shape.
  • the heat transfer fluid can thus absorb the heat emitted by the electric cells of the battery pack to cool them and / or as needed, it can bring them heat if the temperature of the electric cells is insufficient for their proper operation.
  • arrows illustrate the direction of circulation of the cooling fluid in the heat exchanger or chiller 2. It thus circulates in the input port 21A in a first direction and in the output port 21B in a second direction of opposite direction to the first direction.
  • the refrigerant circulating in the heat exchanger or chiller 2 absorbs the heat of the coolant circulating in the heat exchanger or chiller 2 while evaporating, which has the effect of effect of cooling the heat transfer fluid and therefore the electric cells constituting the battery of the vehicle.
  • the heat transfer fluid of the thermal regulation circuit of the vehicle battery is cooled in the heat exchanger said chiller 2 by the refrigerant of the air conditioning system that also circulates in this heat exchanger said.
  • the so-called “heating” function of the coolant, and therefore of the electric cells, is provided in known manner by the implementation of a water heater ("water heater” in English) disposed in the thermal regulation loop.
  • the refrigerant used in the air conditioning loop is, for example, a gaseous refrigerant, for example a fluorinated compound known under the name R134a, a hydrofluoroalkene known under the name R1234yf or carbon dioxide known under the name R744.
  • a gaseous refrigerant for example a fluorinated compound known under the name R134a, a hydrofluoroalkene known under the name R1234yf or carbon dioxide known under the name R744.
  • the thermal conditioning system of the vehicle can implement a control unit and switching means between the heating mode and the cooling mode of the batteries.
  • it implements, for example, a probe for measuring the temperature of the coolant.
  • the electrical module can also be an electrical device capable of dissipating heat during its operation, this device being arranged or not to serve for storing electrical energy.
  • the electrical module may be a device other than electric energy storage cells.
  • the electrical module may for example be a power electronics element.

Abstract

The invention relates to a case (13) for a battery pack (1) for a motor vehicle, comprising an interior space for receiving at least one electrical module and an inner circuit for conveying heat-transfer fluid, comprising at least one device for controlling the temperature of the at least one electrical module. According to the invention, the external surface of the case (13) is provided with a heat exchanger (2), known as a chiller, connected to the inner heat-transfer-fluid circuit of the case (13), said so-called chiller heat exchanger (2) being intended to be connected to an air-conditioning loop (7) of the vehicle, through which a refrigerant flows, and also to a heat control loop (6) of the at least one electrical module, through which the refrigerant is to be moved, such as to flow through the inner circuit of the case (13).

Description

Boîtier d'un pack-batterie de véhicule automobile  Housing of a motor vehicle battery pack
1. Domaine de l'invention 1. Field of the invention
La présente invention concerne un boîtier pour module électrique d'un pack batterie pour véhicule automobile, et un tel pack batterie.  The present invention relates to a housing for an electric module of a battery pack for a motor vehicle, and such a battery pack.
2. Art antérieur 2. Prior Art
L'énergie électrique des véhicules à motorisation électrique et/ou hybride est fournie par une ou plusieurs batteries.  The electrical energy of electrically and / or hybrid powered vehicles is provided by one or more batteries.
Dans ce type de véhicule, la batterie est généralement formée d'une pluralité de cellules électriques formant un ou plusieurs modules disposées dans un boîtier de protection afin de former ce que l'on appelle un pack batterie.  In this type of vehicle, the battery is generally formed of a plurality of electrical cells forming one or more modules arranged in a protective housing to form what is called a battery pack.
Un problème posé réside dans le fait que durant leur fonctionnement, les batteries sont amenées à chauffer et risquent ainsi de s'endommager.  A problem is that during operation, the batteries are heated and may be damaged.
La régulation thermique de la batterie est, par conséquent, un point important.  The thermal regulation of the battery is, therefore, an important point.
En effet, la température de la batterie doit rester comprise entre 20°C et 40°C afin d'assurer la fiabilité, l'autonomie, et la performance du véhicule, tout en optimisant la durée de vie de la batterie.  Indeed, the temperature of the battery must remain between 20 ° C and 40 ° C to ensure the reliability, autonomy, and performance of the vehicle, while optimizing the life of the battery.
Cette régulation de la température de la batterie, et notamment son refroidissement est assuré au moyen d'un fluide caloporteur, tel que de l'eau ou de l'eau glycolée, qui circule dans les conduites d'un circuit placées à l'intérieur du boîtier du pack batterie et reliant une ou plusieurs plaques thermorégulatrices (ou échangeurs à tubes), en contact avec les modules électriques, de manière à réguler leur température par conduction thermique.  This regulation of the temperature of the battery, and in particular its cooling is provided by means of a coolant, such as water or brine, which circulates in the conduits of a circuit placed inside. the housing of the battery pack and connecting one or more thermoregulatory plates (or tube exchangers), in contact with the electrical modules, so as to regulate their temperature by thermal conduction.
Un tel circuit fait partie d'une boucle de régulation thermique 6 des batteries, illustrée de façon schématique sur la figure 1, qui comprend en outre une pompe P pour forcer la circulation du fluide caloporteur à l'intérieur de la plaque d'échange thermique 61 (il pourrait s'agir de plusieurs plaques toutefois). Le fluide caloporteur peut ainsi absorber de la chaleur émise par les modules électriques afin de les refroidir et d'évacuer cette chaleur au niveau d'un échangeur thermique, appelé "chiller", 8, situé à l'extérieur du boîtier du pack-batterie. Such a circuit is part of a thermal regulation loop 6 of the batteries, illustrated schematically in FIG. 1, which furthermore comprises a pump P for forcing the circulation of the heat transfer fluid inside the heat exchange plate. 61 (it could be several plates however). The coolant can thus absorb heat emitted by the electrical modules in order to cool them and evacuate this heat at a heat exchanger, called "chiller" 8, located outside the battery pack housing. .
La liaison entre l'échangeur thermique, dit "chiller", 8 disposé à l'extérieur du boîtier du pack batterie, et la plaque d'échange thermique 61 se fait par l'intermédiaire d'une bride fixée sur la surface extérieure du boîtier de protection.  The connection between the heat exchanger, called "chiller", 8 disposed outside the battery pack housing, and the heat exchange plate 61 is via a flange fixed on the outer surface of the housing protection.
Le fluide caloporteur peut également, si besoin est, apporter de la chaleur pour réchauffer les modules électriques.  The heat transfer fluid can also, if necessary, bring heat to heat the electrical modules.
Pour ce faire, la boucle de régulation thermique 6 comprend un dispositif de chauffage H additionnel, utilisant par exemple des résistances électriques ou des résistances à coefficient de température positif.  To do this, the thermal control loop 6 comprises an additional heating device H, using, for example, electrical resistors or resistors with a positive temperature coefficient.
Un tel dispositif de chauffage H additionnel est essentiel pour réguler la température des modules électriques, notamment par des températures basses en hiver, où il faut augmenter la température des modules électriques avant de commencer à les charger.  Such an additional heating device H is essential for regulating the temperature of the electric modules, in particular by low temperatures in winter, where the temperature of the electric modules must be increased before starting to charge them.
Par ailleurs, les véhicules sont fréquemment équipés d'une installation de chauffage, ventilation, et/ou climatisation pour réguler thermiquement l'espace intérieur de l'habitacle du véhicule en délivrant un flux d'air intérieur à température désirée.  Moreover, the vehicles are frequently equipped with a heating, ventilation and / or air conditioning system for thermally regulating the interior space of the passenger compartment of the vehicle by delivering an interior air flow at the desired temperature.
L'installation de chauffage, ventilation, et/ou climatisation comprend généralement une boucle de climatisation 7 à l'intérieur de laquelle circule un fluide réfrigérant, et plus précisément une boucle principale 74 comprenant un compresseur 76 forçant la circulation de fluide réfrigérant dans cette boucle principale 74 pour qu'il traverse un condenseur 77 avant de traverser un dispositif de détente, ou détendeur, TXVl puis un évaporateur 78 (permettant de refroidir un air destiné à circuler vers l'habitacle du véhicule, avant d'atteindre à nouveau le compresseur 76. Dans cette boucle principale 74, le fluide réfrigérant réalise ainsi un cycle thermodynamique dans lequel il évacue sa chaleur au niveau du condenseur 77, et dans lequel il capte la chaleur au niveau de l'évaporateur 78. The heating, ventilation and / or air conditioning installation generally comprises an air conditioning loop 7 inside which a refrigerant circulates, and more specifically a main loop 74 comprising a compressor 76 forcing the circulation of refrigerant fluid in this loop. main 74 to pass through a condenser 77 before passing through an expansion device, or expander, TXVl then an evaporator 78 (for cooling air to circulate to the passenger compartment of the vehicle, before reaching the compressor again 76. In this main loop 74, the refrigerant thus performs a thermodynamic cycle in which it discharges its heat at the condenser 77, and in which it captures the heat at the evaporator 78.
La boucle de régulation thermique 6 des modules électriques du pack batterie est en relation avec la boucle de climatisation 7, de façon à permettre un échange thermique entre le fluide réfrigérant et le fluide caloporteur, notamment destiné au refroidissement des modules électriques.  The thermal regulation loop 6 of the battery pack electrical modules is in connection with the air conditioning loop 7, so as to allow a heat exchange between the coolant and the heat transfer fluid, in particular for the cooling of the electric modules.
Le fluide caloporteur du circuit de régulation thermique 6 des modules électriques peut ainsi être refroidi par circulation dans l'échangeur thermique dit chiller 8 de type liquide caloporteur/ réfrigérant, qui est connecté à la boucle de climatisation 7.  The heat transfer fluid of the thermal control circuit 6 of the electric modules can thus be cooled by circulation in the heat exchanger, called coolant / coolant type chiller 8, which is connected to the air conditioning loop 7.
Plus précisément, la boucle principale 74 est reliée à l'échangeur thermique dit chiller 8 par l'intermédiaire d'une autre boucle de dérivation 71, qui est raccordée à la sortie du condenseur 77 et à l'entrée du compresseur 76.  More precisely, the main loop 74 is connected to the so-called chiller heat exchanger 8 via another bypass loop 71, which is connected to the outlet of the condenser 77 and to the inlet of the compressor 76.
Cette boucle de dérivation 71 comprend un détendeur TXV 2 que le fluide réfrigérant traverse avant de circuler dans l'échangeur thermique dit chiller 8 pour ensuite retourner dans la boucle principale en étant réinjecté en entrée du compresseur 76.  This bypass loop 71 comprises a TXV 2 expander that the refrigerant crosses before circulating in the heat exchanger said chiller 8 and then return to the main loop being fed back to the input of the compressor 76.
Cependant, une telle solution est encombrante et ne satisfait pas aux exigences actuelles du domaine automobile.  However, such a solution is cumbersome and does not meet the current requirements of the automotive field.
En effet, du fait de la perpétuelle augmentation du niveau d'électrification des véhicules hybrides et électriques, il est nécessaire d'augmenter la quantité de modules de stockage d'énergie électrique.  Indeed, due to the perpetual increase in the level of electrification of hybrid and electric vehicles, it is necessary to increase the amount of storage modules of electrical energy.
Or, l'espace alloué à l'intégration de tels modules électriques est limité, de sorte qu'il est nécessaire d'optimiser l'encombrement de la boucle de régulation thermique des modules électriques du pack batterie, et plus généralement du système de conditionnement thermique du véhicule comprenant une première boucle de climatisation et une deuxième boucle de régulation thermique d'une batterie du véhicule. 3. Résumé de l'invention However, the space allocated to the integration of such electrical modules is limited, so that it is necessary to optimize the size of the thermal regulation loop of the electrical modules of the battery pack, and more generally of the packaging system. thermal vehicle comprising a first air conditioning loop and a second thermal regulation loop of a vehicle battery. 3. Summary of the invention
L'invention propose à cet effet un boîtier notamment d'un pack batterie pour véhicule automobile, comprenant un espace intérieur destiné à contenir au moins un module électrique et un circuit interne de transport d'un fluide caloporteur comprenant au moins un dispositif de régulation thermique dudit au moins un module électrique.  The invention proposes for this purpose a housing including a battery pack for a motor vehicle, comprising an interior space for containing at least one electrical module and an internal circuit for transporting a heat transfer fluid comprising at least one thermal control device said at least one electrical module.
Selon l'invention, le boîtier porte sur sa surface extérieure un échangeur thermique, dit chiller, relié au circuit interne de transport d'un fluide caloporteur dudit boîtier, ledit échangeur thermique, dit chiller, étant destiné à être relié d'une part à une boucle de climatisation dudit véhicule dans laquelle un fluide réfrigérant est destiné à circuler et d'autre part à une boucle de régulation thermique dudit au moins un module électrique dans laquelle le fluide caloporteur est destiné à être mis en mouvement de sorte à ce qu'il circule dans le circuit interne dudit boîtier.  According to the invention, the housing carries on its outer surface a heat exchanger, called chiller, connected to the internal circuit for transporting a coolant fluid of said housing, said heat exchanger, called chiller, being intended to be connected on the one hand to an air-conditioning loop of said vehicle in which a refrigerant fluid is intended to circulate and secondly a thermal regulation loop of said at least one electrical module in which the coolant is intended to be set in motion so that it circulates in the internal circuit of said housing.
L'invention consiste à fixer un échangeur thermique, dit chiller, sur le boîtier de protection du pack batteries et à le connecter directement avec le circuit de transport d'un fluide caloporteur, dit circuit de refroidissement, situé dans le boîtier. La connexion avec la boucle de climatisation (côté réfrigérant) reste externe au boîtier.  The invention consists in fixing a heat exchanger, called chiller, on the battery pack protection box and connecting it directly with the heat transfer fluid transport circuit, called the cooling circuit, located in the housing. The connection with the air conditioning loop (refrigerant side) remains external to the housing.
Cette approche permet de supprimer :  This approach removes:
- la bride de connexion fixée sur la surface extérieure des boîtiers de protection de l'art antérieur qui assure la liaison entre le « chiller », disposé à l'extérieur du boîtier de protection, et les plaques ou tubes d'échange thermique disposés au sein du boîtier, et  the connection flange fixed on the outer surface of the protective housings of the prior art which provides the connection between the "chiller", disposed outside the protective casing, and the heat exchange plates or tubes arranged at the outside; within the case, and
- les tubulures de connexion entre le « chiller » et la bride de connexion du boîtier. Ceci permet en outre de diminuer le nombre de connexions fluidiques dans la boucle de régulation thermique, et ainsi de réduire les risques de fuite de fluide caloporteur. - Connection pipes between the "chiller" and the connection flange of the housing. This also makes it possible to reduce the number of fluid connections in the thermal regulation loop, and thus to reduce the risk of heat transfer fluid leakage.
Cette solution réduit, par ailleurs, l'encombrement de la boucle de régulation thermique (et plus généralement du système de conditionnement thermique du véhicule), et s'avère moins coûteuse que les solutions de l'art antérieur.  This solution reduces, moreover, the size of the thermal regulation loop (and more generally the thermal conditioning system of the vehicle), and proves less expensive than the solutions of the prior art.
L'échangeur thermique, dit chiller, placé sur le boîtier, met en relation la boucle de régulation thermique de la batterie avec la boucle de climatisation du véhicule, de façon à permettre un échange thermique entre le fluide réfrigérant et le fluide caloporteur, notamment destiné au refroidissement des cellules électriques formant le ou les modules de batterie.  The heat exchanger, called chiller, placed on the housing, connects the thermal regulation loop of the battery with the air conditioning circuit of the vehicle, so as to allow a heat exchange between the coolant and the heat transfer fluid, in particular for cooling the electric cells forming the battery module or modules.
Le fluide caloporteur peut ainsi absorber de la chaleur émise par les cellules électriques afin de les refroidir et évacuer cette chaleur au niveau de l'échangeur thermique, dit chiller, dans lequel le fluide caloporteur est en contact thermique avec le fluide réfrigérant.  The heat transfer fluid can thus absorb heat emitted by the electric cells in order to cool them and evacuate this heat at the level of the heat exchanger, called chiller, in which the coolant is in thermal contact with the cooling fluid.
Ledit échangeur thermique, dit chiller, comprend un passage de circulation du fluide réfrigérant du circuit de climatisation dudit véhicule et des conduits d'entrée et de sortie du fluide caloporteur reliés au circuit interne de transport d'un fluide caloporteur dudit boîtier, de sorte à ce que le fluide caloporteur circulant dans lesdits conduits d'entrée et de sortie échange thermiquement avec le fluide réfrigérant circulant dans ledit passage de circulation.  Said heat exchanger, called chiller, comprises a coolant circulation passage of the air conditioning circuit of said vehicle and heat transfer fluid inlet and outlet conduits connected to the internal heat carrier transport circuit of said housing, so as to the heat transfer fluid flowing in said inlet and outlet ducts thermally exchange with the refrigerant circulating in said circulation passage.
En d'autres termes, la boucle de régulation thermique échange thermiquement avec la boucle de climatisation à l'intérieur de l'échangeur thermique, dit chiller.  In other words, the thermal control loop thermally exchanges with the air conditioning loop inside the heat exchanger, called chiller.
Selon un aspect particulier de l'invention, les conduits d'entrée et de sortie du fluide caloporteur dudit échangeur thermique, dit chiller, sont logés en partie, de façon étanche, dans des trous traversant une paroi du boîtier et débouchant dans le circuit interne de transport d'un fluide caloporteur dudit boîtier. According to a particular aspect of the invention, the inlet and outlet ducts of the heat transfer fluid of said heat exchanger, called chiller, are partially housed, in a sealed manner, in holes passing through a wall of the housing and opening into the internal circuit for transporting a coolant of said housing.
De cette façon, la fixation de l'échangeur thermique, dit chiller, est intégrée dans le boîtier du pack batterie.  In this way, the attachment of the heat exchanger, called chiller, is integrated in the battery pack housing.
Selon un aspect particulier de l'invention, les trous traversant une paroi du boîtier sont obturés par une plaque de fermeture recouvrant au moins en partie la face interne de ladite paroi et destinée à venir en contact thermique avec ledit au moins un module électrique.  According to a particular aspect of the invention, the holes through a wall of the housing are closed by a closure plate covering at least partly the inner face of said wall and intended to come into thermal contact with said at least one electrical module.
Selon un aspect particulier de l'invention, le circuit interne de transport d'un fluide caloporteur dudit boîtier comprend des canaux de passage du fluide caloporteur qui sont ménagés dans ladite paroi du boîtier et qui communiquent chacun avec un desdits trous.  According to a particular aspect of the invention, the internal circuit for transporting a heat transfer fluid of said casing comprises heat transfer fluid passage channels which are formed in said wall of the casing and which each communicate with one of said holes.
Selon un aspect particulier de l'invention, un tube du circuit interne de transport d'un fluide caloporteur dudit boîtier est disposé dans chacun desdits trous, la surface extérieure dudit tube venant au contact de la surface périphérique intérieure dudit trou correspondant et la surface intérieure dudit tube étant en contact étanche avec la surface extérieure du conduit d'entrée et du conduit de sortie du fluide caloporteur respectivement dudit échangeur thermique, dit chiller.  According to a particular aspect of the invention, a tube of the internal circuit for transporting a heat transfer fluid of said casing is disposed in each of said holes, the outer surface of said tube coming into contact with the inner peripheral surface of said corresponding hole and the inner surface. said tube being in sealing contact with the outer surface of the inlet duct and the outlet duct of the heat transfer fluid or said heat exchanger, said chiller.
Selon un aspect particulier de l'invention, chacun desdits tubes est surmoulé dans le trou correspondant.  According to a particular aspect of the invention, each of said tubes is overmolded in the corresponding hole.
Selon un aspect particulier de l'invention, le boîtier comprend sur sa surface extérieure des moyens de fixation de l'échangeur thermique, dit chiller.  According to a particular aspect of the invention, the housing comprises on its outer surface means for fixing the heat exchanger, said chiller.
L'invention concerne également un pack batterie, pour véhicule automobile, comprenant un boîtier tel que décrit précédemment.  The invention also relates to a battery pack for a motor vehicle comprising a housing as described above.
L'invention concerne, par ailleurs, un système de conditionnement thermique d'un véhicule comprenant une première boucle de climatisation et une deuxième boucle de régulation thermique d'une batterie du véhicule logée dans un boîtier tel que décrit précédemment. 5. Liste des figures The invention also relates to a thermal conditioning system of a vehicle comprising a first air conditioning loop and a second thermal regulation loop of a vehicle battery housed in a housing as described above. 5. List of figures
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante de modes de réalisation particuliers, donnés à titres de simples exemples illustratifs et non limitatifs, et des figures annexées, à savoir :  Other features and advantages of the invention will become apparent on reading the following description of particular embodiments, given as simple illustrative and non-limiting examples, and the appended figures, namely:
la figure 1 est une représentation schématique d'un système de conditionnement thermique d'un véhicule automobile selon l'art antérieur, décrit précédemment ;  Figure 1 is a schematic representation of a thermal conditioning system of a motor vehicle according to the prior art, described above;
- la figure 2 est une représentation schématique d'un boîtier de protection d'un pack-batterie d'un véhicule automobile selon un mode de réalisation de l'invention ;  FIG. 2 is a schematic representation of a protective case of a battery pack of a motor vehicle according to one embodiment of the invention;
la figure 3 illustre schématiquement une première solution de raccordement d'un échangeur thermique, dit chiller, sur le boîtier de protection d'un pack-batterie de la figure 2 ;  FIG. 3 schematically illustrates a first solution for connecting a heat exchanger, called chiller, to the protective case of a battery pack of FIG. 2;
la figure 4 illustre schématiquement une deuxième solution de raccordement d'un échangeur thermique, dit chiller, sur le boîtier de protection d'un pack-batterie de la figure 2. 5. Description détaillée de l'invention  FIG. 4 diagrammatically illustrates a second solution for connecting a heat exchanger, called a chiller, to the protective case of a battery pack of FIG. 2. Detailed description of the invention
Dans la présente description, on entend par « pack-batterie « , un boîtier dans lequel sont logés :  In the present description, the term "battery pack", a housing in which are housed:
- une batterie constituée d'au moins un module électrique comprenant plusieurs cellules de stockage d'énergie électrique, et  a battery consisting of at least one electrical module comprising a plurality of electric energy storage cells, and
- des moyens de régulation thermique de ce module électrique, sous la forme d'au moins une plaque thermorégulatrice ou d'un échangeur thermique à tubes en contact thermique avec le module.  thermal regulation means of this electrical module, in the form of at least one thermoregulatory plate or a tube heat exchanger in thermal contact with the module.
Par ailleurs, le terme « batterie » désigne un dispositif de stockage d'énergie électrique composé d'une ou plusieurs cellules électriques et, également, un ensemble composé d'un ou plusieurs dispositifs de stockage d'énergie électrique comprenant, respectivement, une ou plusieurs cellules électriques. Moreover, the term "battery" designates an electrical energy storage device composed of one or more electric cells and, also, an assembly consisting of one or more electrical energy storage devices comprising, respectively, one or more electric cells.
La plaque thermorégulatrice est en général refroidie et, donc, refroidissante pour le module.  The thermoregulatory plate is generally cooled and therefore cooling for the module.
Toutefois, il n'est pas exclu qu'elle puisse servir, au moins provisoirement, à chauffer un module pour l'amener à une température de fonctionnement optimale, alors que les conditions climatiques sont défavorables.  However, it is not excluded that it can be used, at least temporarily, to heat a module to bring it to an optimum operating temperature, while the weather conditions are unfavorable.
La figure 2 est une représentation schématique d'un boîtier 13 de protection d'un pack-batterie 1.  FIG. 2 is a schematic representation of a housing 13 for protecting a battery pack 1.
Un tel boîtier est destiné à être mis en œuvre dans un système de conditionnement thermique d'un véhicule électrique ou hybride comprenant tel que décrit précédemment, en relation avec la figure 1, une première boucle de climatisation et une deuxième boucle de régulation thermique d'une batterie du véhicule.  Such a housing is intended to be implemented in a thermal conditioning system of an electric or hybrid vehicle comprising as described above, in connection with FIG. 1, a first air conditioning loop and a second thermal regulation loop. a battery of the vehicle.
Le boîtier 13 est de forme générale parallélépipédique et comprend des parois délimitant une enceinte fermée et étanche dans laquelle est reçue au moins un module électrique (non illustré) formant la batterie.  The housing 13 is of generally parallelepipedal shape and comprises walls delimiting a closed and sealed enclosure in which is received at least one electrical module (not shown) forming the battery.
L'enceinte comprend en outre un circuit interne de transport d'un fluide caloporteur (non illustré), tel que de l'eau glycolée, comprenant au moins un dispositif de régulation thermique, prenant la forme d'une plaque thermorégulatrice (non illustrée) du module électrique, en contact thermique avec ce dernier.  The enclosure further comprises an internal circuit for transporting a heat transfer fluid (not shown), such as brine, comprising at least one thermal control device, in the form of a thermoregulatory plate (not shown) of the electrical module, in thermal contact with the latter.
De façon avantageuse, un échangeur thermique 2 du type « chiller » (en anglais) est porté par une surface extérieure du boîtier 13 de protection.  Advantageously, a heat exchanger 2 of the "chiller" type (in English) is carried by an outer surface of the housing 13 of protection.
Il se présente sous la forme d'un bloc pouvant être fixé par vissage sur le boîtier 13 et comprenant sur une première face une bride de raccordement 21 dans laquelle sont ménagés un port d'entrée 21A de liquide réfrigérant, un port de sortie 21B de liquide réfrigérant et un passage en U (non visible) du liquide réfrigérant reliant le port d'entrée 21A au port de sortie 21B. It is in the form of a block that can be fixed by screwing on the housing 13 and comprising on a first face a connection flange 21 in which are provided a coolant inlet port 21A, a port refrigerant outlet 21B and a U-shaped passage (not visible) of the refrigerant liquid connecting the input port 21A to the output port 21B.
Ce passage du liquide réfrigérant est destiné à faire partie de la boucle de climatisation du système de conditionnement thermique du véhicule.  This coolant passage is intended to be part of the air conditioning circuit of the thermal conditioning system of the vehicle.
Le bloc est traversé par un conduit d'entrée 22A et un conduit de sortie The block is crossed by an inlet duct 22A and an outlet duct
22B cylindriques de fluide caloporteur faisant saillie sur ses première et deuxième faces opposées. L'extrémité des conduits 22A, 22B située du côté de la deuxième face (non visible sur la figure 2), formant élément mâle, est destinée à être introduite dans un trou 132 cylindrique, formant élément femelle, ménagé dans une paroi du boîtier 13. 22B cylindrical heat transfer fluid projecting on its first and second opposite sides. The end of the ducts 22A, 22B situated on the side of the second face (not visible in FIG. 2), forming a male element, is intended to be introduced into a cylindrical hole 132, forming a female element, formed in a wall of the casing 13. .
Les deux trous 132 cylindriques débouchent au niveau de deux embases 131 prenant la forme d'un cylindre aplati 131 faisant saillie sur la surface extérieure du boîtier 13.  The two cylindrical holes 132 open at two bases 131 in the form of a flattened cylinder 131 projecting from the outside surface of the housing 13.
Les deux trous 132 débouchent d'autre part dans le circuit interne de transport du fluide caloporteur du boîtier 13.  The two holes 132 open on the other hand into the internal heat transport circuit of the housing 13.
La fixation du bloc formant échangeur thermique 2 du type « chiller » directement sur le boîtier 13 est aisée et permet de s'affranchir de la mise en œuvre d'une bride de raccordement sur le boîtier conformément à l'art antérieur, mais aussi de réduire le nombre de connections et les risques de fuite de fluide caloporteur.  The fixing of the heat exchanger block 2 of the "chiller" type directly on the casing 13 is easy and makes it possible to dispense with the implementation of a connection flange on the casing according to the prior art, but also of reduce the number of connections and the risk of heat transfer fluid leakage.
L'approche de l'invention permet donc de réduire, d'une manière générale, l'encombrement et le poids de la boucle de régulation thermique des cellules électriques formant la batterie.  The approach of the invention therefore makes it possible to reduce, in a general manner, the bulk and the weight of the thermal regulation loop of the electric cells forming the battery.
Plus généralement, ceci permet de réduire l'encombrement du système de conditionnement thermique dans le véhicule automobile, de faciliter son installation et de minimiser les risques de non-étanchéité de part la réduction du nombre de connexions fluidiques.  More generally, this reduces the size of the thermal conditioning system in the motor vehicle, facilitate installation and minimize the risk of non-sealing by reducing the number of fluid connections.
La figure 3 illustre une première solution de raccordement de l'échangeur thermique ou chiller 2, et en particulier de ses conduits d'entrée 22A et de sortie 22B de fluide caloporteur, avec le circuit interne de transport du fluide caloporteur du boîtier 13. FIG. 3 illustrates a first solution for connecting the heat exchanger or chiller 2, and in particular its input and output ducts 22A. 22B of heat transfer fluid, with the internal circuit for transporting the coolant of the housing 13.
Tel qu'illustré, une extrémité du conduit d'entrée 22A de fluide caloporteur de l'échangeur thermique ou chiller 2 est logée dans un trou 132 traversant une paroi du boîtier 13.  As illustrated, one end of the heat transfer fluid inlet conduit 22A of the heat exchanger or chiller 2 is housed in a hole 132 passing through a wall of the housing 13.
Ce trou 132 débouche dans un canal (non visible) ménagé dans la même paroi du boîtier 13, le canal étant relié au circuit interne de transport du fluide caloporteur du boîtier 13 et destiné à alimenter en fluide caloporteur la plaque thermorégulatrice du pack batterie.  This hole 132 opens into a channel (not visible) formed in the same wall of the housing 13, the channel being connected to the internal heat transfer fluid transport circuit of the housing 13 and for supplying heat transfer fluid the heat pack of the battery pack.
On comprend qu'une extrémité du conduit de sortie 22B de fluide caloporteur de l'échangeur thermique ou chiller 2 est logée dans l'autre trou 132 traversant la même paroi du boîtier 13.  It is understood that one end of the heat transfer fluid outlet conduit 22B of the heat exchanger or chiller 2 is housed in the other hole 132 passing through the same wall of the housing 13.
Ce trou 132 est configuré pour diriger le fluide caloporteur dans un canal (non visible) ménagé dans la même paroi du boîtier 13, le canal étant relié au circuit interne de transport du fluide caloporteur du boîtier 13 et destiné à évacuer le fluide caloporteur provenant de la plaque thermorégulatrice du pack batterie.  This hole 132 is configured to direct the coolant in a channel (not visible) formed in the same wall of the housing 13, the channel being connected to the internal heat transfer fluid transport circuit of the housing 13 and for discharging the heat transfer fluid from the thermoregulatory plate of the battery pack.
Les trous 132 et les canaux 134 correspondants sont obturés par une plaque 133 de fermeture, en aluminium par exemple, qui est disposée de façon étanche contre la surface intérieure du boîtier 13.  The holes 132 and the corresponding channels 134 are closed off by a closing plate 133 made of aluminum, for example, which is arranged in a sealed manner against the inner surface of the housing 13.
Cette plaque 133 de fermeture constitue dans cet exemple la plaque thermorégulatrice destinée à venir en contact thermique avec le module du pack batterie.  In this example, this closure plate 133 constitutes the thermoregulatory plate intended to come into thermal contact with the module of the battery pack.
Dans un exemple de réalisation, cette plaque 133 d'échange thermique peut former un fond du boîtier 13. En conséquence, la batterie repose sur la plaque d'échange thermique.  In an exemplary embodiment, this heat exchange plate 133 may form a bottom of the housing 13. As a result, the battery rests on the heat exchange plate.
Toutefois, la plaque d'échange thermique peut être disposée sur un ou plusieurs cotés du boîtier 13, en étant en contact thermique avec la batterie. Il est à noter que l'étanchéité entre le conduit d'entrée 22A de l'échangeur thermique ou chiller 2 et le trou 132 cylindrique est assurée par un joint torique 23 porté par le conduit d'entrée 22A. However, the heat exchange plate may be disposed on one or more sides of the housing 13, being in thermal contact with the battery. It should be noted that the seal between the inlet duct 22A of the heat exchanger or chiller 2 and the cylindrical hole 132 is provided by an O-ring 23 carried by the inlet duct 22A.
Par ailleurs, la fixation du bloc constituant l'échangeur thermique ou chiller 2 sur le boîtier 13 est assurée par vissage ou tout autre moyen adapté. Sur la figure 2, la surface extérieure du boîtier 13 présente deux taraudages destinés à recevoir des vis de fixation traversant des trous ménagés sur les côtés du bloc.  Furthermore, the fixing of the block constituting the heat exchanger or chiller 2 on the housing 13 is provided by screwing or any other suitable means. In Figure 2, the outer surface of the housing 13 has two threads for receiving fastening screws through holes on the sides of the block.
La figure 4 illustre une deuxième solution de raccordement de l'échangeur thermique ou chiller 2, et en particulier de ses conduits d'entrée 22A et de sortie 22B de fluide caloporteur, avec le circuit interne de transport du fluide caloporteur du boîtier 13.  FIG. 4 illustrates a second connection solution for the heat exchanger or chiller 2, and in particular for its heat transfer fluid inlet and outlet conduits 22A and 22B, with the internal heat carrier transport circuit of the housing 13.
Tel qu'illustré, une extrémité du conduit d'entrée 22A de fluide caloporteur de l'échangeur thermique ou chiller 2 est logée dans un tube 135 s'étendant en partie dans le trou 132 qui traverse une paroi du boîtier 13.  As illustrated, one end of the heat transfer fluid inlet conduit 22A of the heat exchanger or chiller 2 is housed in a tube 135 extending partly in the hole 132 which passes through a wall of the housing 13.
Le tube 135 est ici en partie surmoulé dans le trou 132 et est relié au circuit interne de transport du fluide caloporteur du boîtier 13 de sorte à alimenter en fluide caloporteur la plaque thermorégulatrice du pack batterie.  The tube 135 is here in part overmolded in the hole 132 and is connected to the internal heat transport fluid transport circuit of the housing 13 so as to supply heat transfer fluid to the thermoregulatory plate of the battery pack.
On comprend qu'une extrémité du conduit de sortie 22B de fluide caloporteur de l'échangeur thermique ou chiller 2 est logée dans un autre tube 135 et que ce dernier est relié au circuit interne de transport du fluide caloporteur du boîtier 13 de sorte à évacuer le fluide caloporteur provenant de la plaque thermorégulatrice du pack batterie.  It is understood that one end of the heat transfer fluid outlet conduit 22B of the heat exchanger or chiller 2 is housed in another tube 135 and that the latter is connected to the internal heat transfer fluid transport circuit of the casing 13 so as to evacuate the coolant coming from the thermoregulator plate of the battery pack.
On note que la surface extérieure dudit conduit d'entrée 22A vient au contact de la surface périphérique intérieure dudit tube 135 et que l'étanchéité entre le conduit d'entrée 22A et le tube 135 est assurée par un joint torique 23 porté par le conduit d'entrée 22A.  It is noted that the outer surface of said inlet duct 22A comes into contact with the inner peripheral surface of said tube 135 and that the seal between the inlet duct 22A and the tube 135 is provided by an O-ring 23 carried by the duct 22A.
Par ailleurs, la fixation du bloc constituant l'échangeur thermique ou chiller 2 sur le boîtier 13 est assurée par vissage ou tout autre moyen adapté. En fonctionnement, l'échangeur thermique ou chiller 2 est connecté à la boucle de climatisation dans lequel un liquide réfrigérant circule et à la boucle de régulation thermique dans lequel un fluide caloporteur circule, de sorte que le fluide caloporteur est refroidi par le réfrigérant au niveau de l'échangeur thermique ou chiller 2. Furthermore, the fixing of the block constituting the heat exchanger or chiller 2 on the housing 13 is provided by screwing or any other suitable means. In operation, the heat exchanger or chiller 2 is connected to the air conditioning loop in which a coolant circulates and to the thermal regulation loop in which a heat transfer fluid circulates, so that the heat transfer fluid is cooled by the refrigerant at the heat exchanger or chiller 2.
Simultanément à la circulation du fluide caloporteur l'échangeur thermique ou chiller 2, le fluide réfrigérant traverse l'échangeur thermique ou chiller 2 selon un chemin qui peut prendre une forme en « U » ou tout autre forme.  Simultaneously with the circulation of the coolant heat exchanger or chiller 2, the refrigerant passes through the heat exchanger or chiller 2 in a path that can take a shape of "U" or any other shape.
Un tel agencement permet ainsi au fluide réfrigérant de réguler la température du fluide caloporteur.  Such an arrangement thus allows the refrigerant fluid to regulate the temperature of the coolant.
Le fluide caloporteur peut ainsi absorber la chaleur émise par les cellules électriques du pack batterie afin de les refroidir et/ou selon les besoins, il peut leur apporter de la chaleur si la température des cellules électriques est insuffisante pour leur bon fonctionnement.  The heat transfer fluid can thus absorb the heat emitted by the electric cells of the battery pack to cool them and / or as needed, it can bring them heat if the temperature of the electric cells is insufficient for their proper operation.
Sur la figure 2, des flèches illustrent le sens de circulation du fluide réfrigérant dans l'échangeur thermique ou chiller 2. Il circule ainsi dans le port d'entrée 21A selon une première direction et dans le port de sortie 21B selon une deuxième direction de sens opposé à la première direction.  In FIG. 2, arrows illustrate the direction of circulation of the cooling fluid in the heat exchanger or chiller 2. It thus circulates in the input port 21A in a first direction and in the output port 21B in a second direction of opposite direction to the first direction.
Des flèches illustrent par ailleurs le sens de circulation du fluide caloporteur dans l'échangeur thermique ou chiller 2 et dans le boîtier 13.  Arrows also illustrate the direction of circulation of the coolant in the heat exchanger or chiller 2 and in the housing 13.
Dans le mode de fonctionnement dit de « refroidissement » des cellules électriques, le fluide réfrigérant circulant dans l'échangeur thermique ou chiller 2 absorbe la chaleur du fluide caloporteur circulant dans l'échangeur thermique ou chiller 2 en s'évaporant, ce qui a pour effet de refroidir le fluide caloporteur et donc les cellules électriques constituant la batterie du véhicule.  In the so-called "cooling" mode of operation of the electric cells, the refrigerant circulating in the heat exchanger or chiller 2 absorbs the heat of the coolant circulating in the heat exchanger or chiller 2 while evaporating, which has the effect of effect of cooling the heat transfer fluid and therefore the electric cells constituting the battery of the vehicle.
Ainsi, le fluide caloporteur du circuit de régulation thermique de la batterie du véhicule est refroidi dans l'échangeur thermique dit chiller 2 par le fluide réfrigérant du système de climatisation qui circule également dans cet échangeur thermique dit. Thus, the heat transfer fluid of the thermal regulation circuit of the vehicle battery is cooled in the heat exchanger said chiller 2 by the refrigerant of the air conditioning system that also circulates in this heat exchanger said.
La fonction dite de « chauffage » du fluide caloporteur, et donc des cellules électriques, est assuré de façon connue par la mise en oeuvre d'un chauffe-eau (« water heater » en anglais) disposé dans la boucle de régulation thermique.  The so-called "heating" function of the coolant, and therefore of the electric cells, is provided in known manner by the implementation of a water heater ("water heater" in English) disposed in the thermal regulation loop.
Bien évidemment, l'invention n'est pas limitée aux modes de réalisation décrits précédemment et fournis uniquement à titres d'exemples.  Of course, the invention is not limited to the embodiments described above and provided solely by way of examples.
Elle englobe diverses modifications et variantes que pourra envisager l'homme du métier dans le cadre de la présente invention.  It encompasses various modifications and variations that may be considered by those skilled in the art within the scope of the present invention.
Le fluide réfrigérant utilisé dans la boucle de climatisation est, par exemple, un fluide frigorigène gazeux, par exemple un composé fluoré connu sous la dénomination R134a, un hydrofluoroalcène connu sous la dénomination R1234yf ou du dioxyde de carbone connu sous la dénomination R744.  The refrigerant used in the air conditioning loop is, for example, a gaseous refrigerant, for example a fluorinated compound known under the name R134a, a hydrofluoroalkene known under the name R1234yf or carbon dioxide known under the name R744.
Par ailleurs, le système de conditionnement thermique du véhicule peut mettre en œuvre une unité de commande et des moyens de commutation entre le mode chauffage et le mode de refroidissement des batteries. Dans ce cadre, il met, par exemple, en œuvre une sonde de mesure de la température du fluide caloporteur.  Furthermore, the thermal conditioning system of the vehicle can implement a control unit and switching means between the heating mode and the cooling mode of the batteries. In this context, it implements, for example, a probe for measuring the temperature of the coolant.
Selon l'invention, le module électrique peut également être un dispositif électrique susceptible de dissiper de la chaleur lors de son fonctionnement, ce dispositif étant agencé ou non pour servir au stockage d'énergie électrique. Ainsi, le module électrique peut être un dispositif autre que des cellules de stockage d'énergie électrique. Le module électrique peut par exemple être un élément d'électronique de puissance. According to the invention, the electrical module can also be an electrical device capable of dissipating heat during its operation, this device being arranged or not to serve for storing electrical energy. Thus, the electrical module may be a device other than electric energy storage cells. The electrical module may for example be a power electronics element.

Claims

REVENDICATIONS
1. Boîtier (13) notamment d'un pack batterie (1) pour véhicule automobile, comprenant un espace intérieur destiné à contenir au moins un module électrique et un circuit interne de transport d'un fluide caloporteur comprenant au moins un dispositif de régulation thermique dudit au moins un module électrique, Housing (13) in particular of a battery pack (1) for a motor vehicle, comprising an interior space intended to contain at least one electrical module and an internal circuit for transporting a heat transfer fluid comprising at least one thermal regulation device said at least one electrical module,
le boîtier (13) étant caractérisé en ce qu'il porte sur sa surface extérieure un échangeur thermique, dit "chiller", (2) relié au circuit interne de transport d'un fluide caloporteur dudit boîtier (13), ledit échangeur thermique, dit "chiller", (2) étant destiné à être relié d'une part à une boucle de climatisation (7) dudit véhicule dans laquelle un fluide réfrigérant est destiné à circuler et d'autre part à une boucle de régulation thermique (6) dudit au moins un module électrique dans laquelle le fluide caloporteur est destiné à être mis en mouvement de sorte à ce qu'il circule dans le circuit interne dudit boîtier (13). the housing (13) being characterized in that it carries on its outer surface a heat exchanger, called "chiller", (2) connected to the internal circuit for transporting a coolant of said housing (13), said heat exchanger, said "chiller", (2) being intended to be connected on the one hand to an air conditioning loop (7) of said vehicle in which a refrigerant is intended to circulate and secondly to a thermal regulation loop (6) said at least one electrical module in which the heat transfer fluid is intended to be moved so that it flows in the internal circuit of said housing (13).
2. Boîtier (13) selon la revendication 1, caractérisé en ce que ledit échangeur thermique, dit "chiller", (2), comprend un passage de circulation (21A,2. Housing (13) according to claim 1, characterized in that said heat exchanger, called "chiller" (2) comprises a circulation passage (21A,
21B) du fluide réfrigérant du circuit de climatisation et des conduits d'entrée et de sortie (22A, 22B) du fluide caloporteur reliés au circuit interne de transport d'un fluide caloporteur dudit boîtier (13), de sorte à ce que le fluide caloporteur circulant dans lesdits conduits d'entrée et de sortie (22A, 22B) échange thermiquement avec le fluide réfrigérant circulant dans ledit passage de circulation (21A, 21B). 21B) of the cooling fluid of the air conditioning circuit and the inlet and outlet pipes (22A, 22B) of the heat transfer fluid connected to the internal circuit for transporting a heat transfer fluid from said casing (13), so that the fluid coolant circulating in said inlet and outlet ducts (22A, 22B) thermally exchange with the refrigerant circulating in said circulation passage (21A, 21B).
3. Boîtier (13) selon la revendication 2, caractérisé en ce que les conduits d'entrée et de sortie (22A, 22B) du fluide caloporteur dudit échangeur thermique, dit "chiller", (2) sont logés en partie, de façon étanche, dans des trous (132) traversant une paroi du boîtier (13) et débouchant dans le circuit interne de transport d'un fluide caloporteur dudit boîtier (13). 3. Housing (13) according to claim 2, characterized in that the inlet and outlet ducts (22A, 22B) of the heat transfer fluid of said exchanger thermal, said "chiller", (2) are housed in part, tightly, in holes (132) passing through a wall of the housing (13) and opening into the internal circuit for transporting a coolant of said housing (13). ).
4. Boîtier (13) selon la revendication 3, caractérisé en ce que les trous (132) sont obturés à une extrémité par une plaque de fermeture (133) recouvrant au moins en partie la face interne de ladite paroi du boîtier (13) et destinée à venir en contact thermique avec ledit au moins un module électrique. 4. Housing (13) according to claim 3, characterized in that the holes (132) are closed at one end by a closure plate (133) covering at least partly the inner face of said wall of the housing (13) and intended to come into thermal contact with said at least one electrical module.
5. Boîtier (13) selon la revendication 4, caractérisé en ce que le circuit interne de transport d'un fluide caloporteur dudit boîtier (13) comprend des canaux de passage du fluide caloporteur ménagés dans ladite paroi du boîtier (13) et communiquant chacun avec un desdits trous (132). 5. Housing (13) according to claim 4, characterized in that the internal circuit for transporting a coolant of said housing (13) comprises heat transfer fluid passageways formed in said wall of the housing (13) and communicating each with one of said holes (132).
6. Boîtier (13) selon la revendication 3, caractérisé en ce qu'un tube (135) du circuit interne de transport d'un fluide caloporteur dudit boîtier (13) est disposé dans chacun desdits trous (132), la surface extérieure dudit tube (135) venant au contact de la surface périphérique intérieure dudit trou (132) correspondant et la surface intérieure dudit tube (135) étant en contact étanche avec la surface extérieure du conduit d'entrée (22A) et du conduit de sortie (22B) du fluide caloporteur respectivement dudit échangeur thermique, dit "chiller", (2). 6. Housing (13) according to claim 3, characterized in that a tube (135) of the internal circuit for transporting a coolant of said housing (13) is disposed in each of said holes (132), the outer surface of said tube (135) engaging the inner peripheral surface of said corresponding hole (132) and the inner surface of said tube (135) being in sealing contact with the outer surface of the inlet duct (22A) and the outlet duct (22B) ) heat transfer fluid or said heat exchanger, called "chiller", (2).
7. Boîtier (13) selon la revendication 6, caractérisé en ce que chacun desdits tubes (135) est surmoulé dans le trou (132) correspondant. 7. Housing (13) according to claim 6, characterized in that each of said tubes (135) is overmolded in the hole (132) corresponding.
8. Boîtier (13) selon la revendication 6, caractérisé en ce qu'il comprend sur sa surface extérieure des moyens de fixation de l'échangeur thermique, dit "chiller", (2). 8. Housing (13) according to claim 6, characterized in that it comprises on its outer surface means for fixing the heat exchanger, called "chiller", (2).
9. Pack batterie (1), pour véhicule automobile, caractérisé en ce qu'il comprend un boîtier (13) selon l'une des revendications 1 à 8. 9. Pack battery (1) for a motor vehicle, characterized in that it comprises a housing (13) according to one of claims 1 to 8.
PCT/FR2018/052434 2017-10-04 2018-10-03 Case for a motor vehicle battery pack WO2019069018A1 (en)

Applications Claiming Priority (2)

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FR1759278A FR3071962B1 (en) 2017-10-04 2017-10-04 HOUSING FOR THE THERMAL REGULATION OF A MOTOR VEHICLE BATTERY PACK
FR1759278 2017-10-04

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FR3098289A1 (en) * 2019-07-02 2021-01-08 Psa Automobiles Sa CONNECTION BETWEEN A FLUID CIRCUIT OF A FLUID EXCHANGE SYSTEM AND A COOLING HEAT EXCHANGER OF AN ELECTRIC ENERGY RESERVE EQUIPPING A VEHICLE.

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US20090317697A1 (en) * 2008-06-23 2009-12-24 Gm Global Technology Operations, Inc. Vehicular combination chiller bypass system and method
US20110244300A1 (en) * 2008-12-16 2011-10-06 Marcin Pawel Closek Thermo-stabilized electric battery module
US20130061630A1 (en) * 2011-08-31 2013-03-14 Bernd Schaefer Heat exchanger
US20160339760A1 (en) * 2015-05-20 2016-11-24 Ford Global Technologies, Llc Cabin and battery cooling control for electrified vehicles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090317697A1 (en) * 2008-06-23 2009-12-24 Gm Global Technology Operations, Inc. Vehicular combination chiller bypass system and method
US20110244300A1 (en) * 2008-12-16 2011-10-06 Marcin Pawel Closek Thermo-stabilized electric battery module
US20130061630A1 (en) * 2011-08-31 2013-03-14 Bernd Schaefer Heat exchanger
US20160339760A1 (en) * 2015-05-20 2016-11-24 Ford Global Technologies, Llc Cabin and battery cooling control for electrified vehicles

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