Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
  • H01M10/6567—Liquids
  • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• • 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
  • 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
  • B60L50/66—Arrangements of batteries
• • 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
• • 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
  • B60L58/27—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 heating
• • 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
  • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
• • 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
  • H01M2220/00—Batteries for particular applications
  • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
• • 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

• Housing for protecting a battery pack incorporating channels for transporting a heat transfer fluid
• the invention relates to the field of thermal regulation of battery modules, in particular for a motor vehicle whose propulsion is supplied in whole or in part by an electric motor, located in a protective case forming, with the battery modules, a battery pack.
• the invention relates to the structure of such a protective housing.
• the electric energy storage cells are interconnected in order to create an electrical generator of desired voltage and capacity, and positioned in a battery module (called “module” in which follows).
• casing in English, made of metal, which protects the modules of the external environment.
• the protective case and the modules form a set generally called battery pack.
• the battery pack generally disposed at the floor of the vehicle, covers a more and more consistent surface of the vehicle floor and sometimes even the bottom of the body it.
• the battery modules may be subject to temperature variations that may in some cases cause their damage or even their destruction. Therefore, the thermal regulation of the modules is essential in order, on the one hand, to maintain them in good condition and, on the other hand, to ensure the reliability, autonomy, and performance of the vehicle.
• Devices for regulating the temperature of the modules are therefore implemented to optimize the operation of the modules.
• Such a thermal regulation device is traversed by a heat transfer fluid and performs the functions of heating and / or cooling of the modules.
• the heat transfer fluid can thus absorb the heat emitted by each module to cool or as needed, it can bring him heat if the temperature of the module is insufficient for its proper operation.
• One or more thermal control devices are generally positioned directly in contact with the modules (that is to say inside the battery pack).
• the transport that is to say the supply of heat transfer fluid to these thermal control devices and its evacuation, is carried out through a network of tubings arranged either inside the protective housing, or to outside of it.
• a first drawback of the implementation of a tubing network, whether internal or external to the protective housing, lies in the large number of components it implements.
• a tubing network consists of a plurality of transport tubes interconnected mechanically.
• the weight of the installation embedded in the vehicle is important, which is not satisfactory.
• tubing network is relatively bulky.
• the congestion of the tubing network limits the space allocated to the reception of the battery modules within the battery pack.
• the present invention aims to solve these problems of the state of the art and proposes a protection housing of at least one electric battery module comprising at least one thermal control element of said at least one module in which a coolant.
• said protective housing comprises at least one heat transfer fluid transport channel extending in at least one wall of the protective housing and fluidly connected to said at least one thermal regulation element.
• the invention thus proposes to integrate the heat transfer fluid transport channels within the walls of the protective housing in which are housed the electric battery modules.
• the casing makes it possible on the one hand to protect the battery modules from shocks and, on the other hand, to distribute the heat-transfer fluid towards thermal regulation elements implemented in the internal enclosure of the casing and arranged in thermal contact with the casing. the modules so as to regulate the temperature of the latter.
• the invention therefore integrates the management of the coolant within the structure of the protective housing.
• the structure of the housing and the heat transfer fluid transport channels are indissociable.
• the walls of the protective housing consist of two half-shells which, after assembly delimit said at least one transport channel.
• the protective housing is obtained by assembling two half-shells having complementary shapes that, once assembled, delimit cavities forming the heat transfer fluid transport channels within the wall of the housing.
• said two half-shells are secured by welding, bonding or friction of said two half-shells of the housing between them until adhesion.
• the battery modules are thus protected against shocks ("crash") and coolant leakage insofar as the inner chamber of the housing is kept sealed with respect to the heat transfer fluid transport circuit located in the walls of the housing.
• a first half-shell comprises at least one groove and a second half-shell comprises at least one groove, said at least one groove being disposed facing each other and delimiting said at least one groove a transport channel after assembly of the two half-shells.
• the protective housing is obtained by assembling two half-shells each having grooves located vis-à-vis and which, after assembly, delimit the transport channels of the coolant within the wall of the housing itself.
• the two half-shells delimit after assembly at least one receiving slot of an edge of said at least one thermal regulation element fluidly connecting the latter to at least one transport channel.
• the protective housing is in one piece.
• the protective housing has only one part so that it is simple to manufacture.
• said at least one heat transfer fluid transport channel is formed in said monoblock protective case during its manufacture by one of the following methods: three-dimensional printing (3D), pultrusion, lost wax casting, gas injection.
• said at least one transport channel is delimited by at least one duct extending in said at least one wall of the protective housing.
• the protective housing incorporates one or more conduits within these walls delimiting the transport channels.
• the thickness of the walls of the protective case is not, or very little, increased compared to known cases of the prior art.
• said at least one conduit is thermoformed or overmolded within said at least one wall of said protective housing.
• thermoforming or overmolding allow to integrate in a simple and inexpensive way, the ducts within the walls of the protective housing of the electric battery modules.
• the invention further proposes a battery pack for a hybrid or electric vehicle comprising a protective case as described above, in which at least one electric battery module thermally regulated by at least one thermal regulation element is housed.
• Figure 1 which schematically illustrates the general principle of the invention is a top view, in section, of a battery pack implementing a protective housing according to the invention
• Figure 2A is a side view, in partial section, of a protective case of a battery pack according to a first embodiment of the invention
• Fig. 2B is an exploded view of the shield case of Fig. 2A;
• Figure 3 is a schematic detail view, in section, of a protective housing of a battery pack according to a second embodiment of the invention;
• Figure 4 is a sectional view illustrating a variant of the protective housing of Figure 3;
• Figure 5 is a schematic detail view of a protective case of a battery pack according to a third embodiment of the invention.
• FIG. 6 is a perspective view illustrating a variant of the protective case of FIG. 5;
• Figure 7 is a perspective view illustrating another variant of the protective housing of Figure 5;
• Figure 8 is a sectional view partially illustrating a protective case of a battery pack according to a fourth embodiment of the invention.
• Figure 9 is another sectional view partially illustrating the protective housing of Figure 8.
• FIG. 10 is a perspective view illustrating a variant of the protective case of FIG. 8. 5. Detailed Description of Embodiments
• the electrical battery module protection casing of the invention comprises, within one or more of these walls, integrated channels for transporting a heat transfer fluid to one or more thermal regulation devices of the electric battery modules. and evacuation of the coolant out of the housing.
• heat transfer fluid transport channels integrated in the walls of the protective housing thus allow the supply and discharge of heat transfer fluid temperature control devices which are arranged in the protective housing and placed in thermal contact with the battery modules.
• the heat transfer fluid circulating in the thermal control devices makes it possible to regulate the temperature of the battery modules arranged in the enclosure of the housing.
• FIG. 1 which schematically illustrates the general principle of the invention, is a top view, in section, of a battery pack P comprising a protection box B according to the invention in which electrical battery modules M are housed; .
• the battery modules M are arranged in thermal contact with thermal regulation elements 9, thus making it possible to regulate their temperature.
• the thermal regulation elements 9, which together form a thermal regulation device, comprise circuits for circulating a heat transfer fluid allowing the exchange of calories between each of the modules M and the corresponding thermal regulation element 9 .
• the invention provides for providing channels 10 for conveying this fluid within the walls of the protective casing B.
• the transport channels 10 thus extend in one or more walls of the protective housing B in order to supply and evacuate the coolant circulating in the circulation circuits of the various thermal regulation elements 9.
• the protective housing B further comprises a connector 11 having an inlet port 111 and a discharge port 112 which makes it possible to connect the transport channels 10 with another part of the thermal regulation loop to the housing B of protection (including a circulation pump of the fluid in particular).
• FIGS. 2A and 2B are diagrammatic detail views, in section, of a casing 1 for protecting a battery pack according to a first embodiment of the invention.
• FIG. 2A shows a module M of electric battery resting on a thermal regulation element 9 connected to a channel 10 for transporting the heat transfer fluid formed in the protective casing 1.
• the housing 1 of protection consists of two half-shells
• the shapes of the half-shells 12a, 12b also delimit at least one slot 13 which makes it possible to connect the transport channel 10 fluidically to a thermal regulation element 9 fixed on the protective housing 1.
• the slot 13 is dimensioned to receive, sealingly, an edge of the thermal control element 9 and to connect fluidly the transport channel 10 to the fluid circulation circuit extending in the thermal control element 9.
• the first half-shell 12a has a first rectilinear portion 121 extended by a second rectilinear portion 122, inclined relative to the first portion 121 and having, at its free end, a rounded portion 123, the rounded portion 123 having a lip 124 (exploded view of Figure 2B).
• the second half-shell 12b has a shape substantially corresponding to the first half-shell 12a.
• first rectilinear portion 125 extended by a second rectilinear portion 126, inclined with respect to the first portion 125 and having, at its free end, a rounded portion 127, the rounded portion 127 having a third straight portion 128 extending parallel to the first straight portion 125 ( Figure 2B).
• each half-shells 12a, 12b are located vis-à-vis so as to define a cavity forming the channel 10 for transporting the coolant.
• the transport channel 10 has a substantially circular section.
• the lip 124 of the first half-shell 12a is located vis-à-vis the third straight portion 128 of the second half-shell 12b so as to form the slot 13 for fixing the thermal control element 9 on the housing 1 and the fluid connection of the thermal control element 9 with the transport channel 10.
• the half-shells 12a, 12b are made of plastic, metal or composite material.
• the material used for the housing walls is chosen so that the latter has sufficient rigidity to protect the battery modules M it contains.
• the half-shells 12a, 12b are joined together at the first 121, 125 and second 122, 126 rectilinear portions of the half-shells 12a, 12b, by gluing, by welding, or by friction of the two half-shells. hulls between them until adhesion.
• Figure 3 is a schematic detail view, in section, of a housing 2 for protecting a battery pack according to a second embodiment of the invention.
• the protective housing 2 consists of a double shell, or wall, comprising a first half-shell 21 disposed towards the outside of the housing 2 and a second half-shell 22 disposed towards the inside of the housing. 2 of protection.
• the first 21 and second 22 half-shells respectively comprise rectilinear grooves 211, 221 of semi-hexagonal section which extend parallel to each other.
• the grooves 221 of the first half-shell 21 are located opposite the grooves 221 of the second half-shell 22.
• the grooves 211, 221 delimit channels 10 for transporting the coolant, of hexagonal section, within the double shell 20 of the protective housing.
• the transport channels 10 thus has a hexagonal shape after joining the first 21 and second 22 half-shells.
• FIG. 4 illustrates a variant of the second embodiment in which the grooves 211, 221 have a semi-elliptical section.
• the transport channels 10 After joining the two half-shells 21, 22, the transport channels 10 and have an elliptical or oval shape.
• FIGS. 3 and 4 are simple illustrative and non-limiting examples.
• the channels may have a circular, rectangular, triangular, or trapezoidal shape, for example.
• the first 21 and second 22 half-shells are made of plastic, metal or composite material.
• the material used for the half-shells of the housing is chosen so that the latter has sufficient rigidity to protect the battery modules M it contains.
• FIG. 5 is a schematic detail view of a protective case of a battery pack according to a third embodiment of the invention.
• the protective housing 3 is monobloc and the transport channels 10 are defined directly in the walls of the housing 3 during its manufacture.
• the protective housing 3 comprises, on at least one of these walls, a profile 31 protruding with respect to the inner surface of the wall 30 (that is to say the surface of the wall facing the wall). inside the case).
• An inlet or supply port 311 and an outlet or discharge port 312 are provided at one end of the transport channels 10 for the supply and discharge of the coolant.
• the profile 31 also has a plurality of pairs of openings 313 (intended for the inlet and outlet of the fluid, respectively) arranged along the profile 31 so as to allow the connection of the thermal regulation elements 9 to the transport channels 10 integrated into the housing 3.
• the profile 31 comprises a supply channel 10 and a heat transfer medium outlet channel 10 communicating respectively with the inlet orifice 311 and the discharge orifice 312 respectively.
• the channels 10 allow the heat transfer fluid to be transported to ten thermal regulation elements 9 (not shown) which are each connected with an opening pair 313.
• thermal regulation elements 9 are connected on each side of the section 31 integrating the transport channels 10, ie ten thermal regulation elements in total.
• FIG. 6 illustrates a variant of the protection box 3 of FIG. 5 in that the supply channel 10 and the heat transfer medium outlet channel 10 are superimposed.
• Several pairs of apertures 313 high and low are arranged along the profile 31 so as to allow the connection of the thermal control elements 9 to the transport channels 10 integrated in the housing 3.
• Figure 7 illustrates another variant of the protective housing 3 of Figure 5 in that it comprises three sections 31 spaced in the same plane and each having a single channel 10 of transport.
• the central section 31a comprises an inlet orifice, or supply port, 311 which supplies heat transfer fluid temperature control elements 9 located on either side of the section 31a.
• the thermal regulation elements 9 are fluidly connected to the central section 31a through the openings 313 formed on the side walls of the profile 31.
• the two lateral sections 31b, 31c are located on each side of the central section
• each of the lateral sections 31b, 31c comprises on a lateral edge openings 313 in which the thermal control elements 9 open, and a discharge orifice 312 of the heat transfer fluid located at the end of the transport channel 10.
• the various monobloc protective housings 3 described in connection with FIGS. 5 to 7 are manufactured, for example, according to a three-dimensional printing method, the transport channels being formed during this printing step.
• the monoblock housings 3 are produced by pultrusion, by lost wax molding, by gas injection, or by any other suitable method.
• the monobloc protective housing 3 is made of plastic, metal or composite material.
• the material used for the housing is chosen to have sufficient rigidity to protect the battery modules M it contains.
• FIGS 8 and 9 schematically illustrate a protective case of a battery pack according to a fourth embodiment of the invention.
• the protective casing 4 integrates, within its walls, a network of cylindrical ducts intended to distribute the heat transfer fluid to the thermal control elements 9, and to evacuate the coolant.
• Figure 8 is a cross-sectional view of the housing 4 illustrating the walls 41 of the protective housing 4 in which the cylindrical ducts 42 are integrated.
• the ducts 42 extend rectilinearly into the walls 41 and define channels 10 for transporting the coolant.
• openings 411 are formed in the walls 41 so as to connect the thermal regulation elements 9 to the channels 10 (FIG. 9).
• the protective housing 4 is made of plastic, metal or composite material.
• the material used for the housing is chosen so that the latter has sufficient rigidity to protect the battery modules M it contains.
• the ducts 42 are attached within the walls 41 of the casing 4 by thermoforming or overmolding.
• FIG. 10 illustrates a variant of the protective casing 4 of FIG. 8 in that the ducts 42 snake within the wall 41 of the casing 4 so as to reach and distribute the heat-transfer fluid towards the various thermal regulation elements 9 (and to evacuate the coolant also).
• conduits 42 in the thickness of the walls 41 of the protective casing 4 makes it possible to prevent coolant leaks in the inner enclosure of the protective casing 4 and the destruction of the battery modules M.
• the invention thus proposes to integrate the heat transfer fluid transport channels within the walls of the protective housing in which the electric battery modules M are housed.
• the housing makes it possible on the one hand to protect the battery modules M from shocks and, on the other hand, to transport the heat-transfer fluid towards thermal regulation elements implemented in the interior space of the casing and arranged in thermal contact. with the modules to regulate their temperature.
• the invention makes it possible to integrate the management of the coolant within the structure of the protective casing.
• the structure of the housing and the heat transfer fluid transport channels are indissociable.
• the invention proposes to create the transport channels either:
• the invention makes it possible to implement a network of heat transfer fluid transport channels within the walls of the protective casing for supplying thermal transfer elements with heat transfer fluid, and then for evacuating the heat transfer fluid having traveled through the elements. thermal regulation.
• the invention makes it possible to reduce the number of components necessary for the management of the coolant.
• the heat transfer fluid transport circuit being integrated in the walls of the protective housing, it is no longer necessary to implement a tubing network inside or outside the housing to transport the heat transfer fluid to the thermal control elements arranged in the protective housing.
• the weight embedded in the vehicle is reduced, which optimizes the performance (autonomy and power, in particular) of the hybrid or electric vehicle.
• the invention makes it possible to reduce the risks of leakage of the coolant within the protective housing in which the battery modules are housed.
• the heat transfer fluid transport channels can be implemented on one or more of the walls of the housing.
• the channels can therefore be integrated in the bottom wall, the side walls and / or the cover of the protective housing.
• thermal regulation elements may be in the form of plate or tube exchangers arranged in the enclosure of the housing, or in the form of an arrangement of tubes or circulation channels. heat transfer fluid directly integrated into the wall or walls of the housing.
• the walls of the protective housing are made of a material having good strength / mechanical resistance for an optimal weight.
• the protective housing walls provide good protection of the battery modules housed in the latter against shocks ("crash").
• this type of protective case can be used in any type of vehicle in the field of transport but also in the building industry and the tertiary sector, where electric batteries are contained in a housing and cooled directly or indirect by a fluid.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Power Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Battery Mounting, Suspending (AREA)
• Secondary Cells (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=61802006

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Family Cites Families (12)

• 2017
  • 2017-10-04 FR FR1759281A patent/FR3071961A1/fr active Pending
• 2018
  • 2018-10-03 US US16/753,119 patent/US11495850B2/en active Active
  • 2018-10-03 CN CN201880078480.XA patent/CN111602285B/zh active Active
  • 2018-10-03 WO PCT/FR2018/052438 patent/WO2019069022A1/fr unknown
  • 2018-10-03 EP EP18808413.1A patent/EP3676904A1/fr active Pending

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