Classifications

• • 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
  • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
  • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
  • H01M50/229—Composite material consisting of a mixture of organic and inorganic materials
• • 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
  • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
  • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/271—Lids or covers for the racks or secondary casings
  • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
  • H01M50/276—Inorganic material
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/271—Lids or covers for the racks or secondary casings
  • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
  • H01M50/28—Composite material consisting of a mixture of organic and inorganic materials
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the present invention relates to a compartment for equipment capable of releasing heat during its operation, in particular for an electrical energy storage device for a motor vehicle.
• Patent applications US2017176108 and WO 2013056938 describe heat exchangers for cooling battery cells. Furthermore, patent application US 2011/0206967 A describes an example of such a battery.
• the cells are stored in containers having housings for receiving the cells.
• a wall of the containers, intended to be in contact with a wall of a neighboring container, has recesses forming part of a conduit for the circulation of a heat transfer fluid.
• the battery is subject to electromagnetic stresses from the various electronic equipment of the vehicle such as the ECU (Electronic Command Unit) better known by the English acronym ECU, which can cause disturbances and malfunction. of the battery, this is called electromagnetic interference (EMI).
• ECU Electronic Control Unit
• EMI electromagnetic interference
• the invention aims to overcome this drawback.
• the present invention thus relates to a compartment for equipment capable of releasing heat during its operation, the equipment being in particular an electrical energy storage device for a vehicle, this compartment comprising at least one housing arranged to receive said electrical equipment, at least one beam forming a side wall of this housing, and a lid arranged to be assembled with the beam to close the housing, compartment in which the beam comprises a core made of composite material containing a plastic material and reinforcing elements, for example made of glass or carbon fibers, the one of this beam and of the cover comprising at least one metallic element, the compartment further comprising at least one metallic claw arranged to come into contact with the said metallic element and to penetrate the material which carries this metallic element, this metallic element being placed in electrical continuity with the metal claw so as to participate in electromagnetic protection of the compartment.
• the metal elements on the cover and the beam(s) can ensure not only the function of protection against electromagnetic disturbances and the function of electrical continuity, but also have a function of fire resistance, so as to provide better overall security.
• the metal claw(s) make the electrical continuity more reliable, thanks to the fact that this or these metal claws remain in good contact with the metal element to be electrically coupled.
• the metallic element is at least partially embedded in the material that carries it.
• the metal element for example a metal sheet
• the material for example in the plastic material of the beam.
• the metal claw penetrates the plastic material in which the metal element is embedded.
• the metal element comprises one of the following elements: a metal sheet, a metal fabric, a metal coating, wires or metal fibers placed in bulk.
• the metal element comprises aluminum.
• the beam and the cover each comprise a metallic element.
• the metal element of the beam is embedded in the material of the beam and the metal element of the cover is embedded in the material of the cover.
• the metal claw makes the electrical connection between the two embedded metal elements.
• the metal claw belongs to the cover which comprises a metal element, for example a metal sheet, and the metal claw is in electrical contact with this metal element.
• the metal claw(s) of the lid can for example be fixed to the lid by being molded into the material of the lid.
• the metal claw belongs to the beam which comprises a metal element, for example a metal sheet, and the metal claw is in electrical contact with this metal element.
• the metal claw belongs to an anti-creep ring interposed between the cover and the beam or beams.
• the anti-creep ring is electrically conductive.
• the anti-creep ring comprises a plurality of metal claws distributed around its periphery.
• the metal claw has a tip capable of penetrating a plastic material.
• the compartment comprises one or more screws for screwing the cover onto the beam or beams.
• the anti-creep ring faces the screw so that the screw rod passes through the anti-creep ring.
• the present invention also relates to a compartment for equipment capable of releasing heat during its operation, the equipment being in particular an electrical energy storage device for a vehicle, this compartment comprising at least one housing arranged to receive said electrical equipment, at least one beam forming a side wall of this housing, and a cover arranged to be assembled with the beam to close the housing, the compartment being characterized in that the beam comprises a core made of composite material containing a plastic material and reinforcing elements, for example made of glass or carbon fibers, this beam and the cover each comprising at least one metallic element, these metallic elements being placed in electrical continuity with each other so as to participate in electromagnetic protection of the compartment.
• the metal element comprises one of the following elements: a metal sheet, a metal fabric, a metal coating, wires or metal fibers placed in bulk.
• the metallic element comprises aluminum.
• the face of the beam forming the side wall is completely covered by the metal element, which is in particular a metal sheet, a metal fabric, a metal coating, wires or metal fibers placed loose on this face of the beam.
• the metal element which is in particular a metal sheet, a metal fabric, a metal coating, wires or metal fibers placed loose on this face of the beam.
• a zone or certain zones of this face of the beam are devoid of a metallic element.
• the metal element of the beam is on the surface of the beam.
• the metallic element is in particular bonded to the composite material of the beam, at its surface.
• this coating can be deposited on one side of the composite material of the beam.
• the metallic element is a metallic foil or woven fabric
• this foil or woven fabric may be bonded to the composite material during the manufacture of the beam.
• the beam is produced by pultrusion, namely an extrusion by drawing, of the composite material.
• the composite material comprises continuous fibers of glass or carbon which serve as mechanical reinforcement.
• the pultrusion is carried out in the direction of these continuous fibers.
• the plastic matrix of the composite material is a thermoplastic or a thermoset.
• the plastic matrix is chosen from: a polyolefin, a polyamide, a polyester, a polyurethane, an acrylic.
• the matrix is a thermoset.
• the matrix contains Vinyl-ester, epoxy, or an epoxy / Vinyl-ester mixture.
• the beam is hollow in the longitudinal direction.
• each beam comprises one or more cavities resulting from the pultrusion.
• these cavities are parallel to each other.
• these cavities are one above the other in the direction of the height of the housing.
• the metal element is at least partially embedded in the composite material of the beam.
• the cover is made from a plastic material.
• the cover is made of a composite material containing a plastic material and reinforcing elements, for example glass or carbon fibers.
• the cover and the beam can, if desired, be made of the same material.
• the cover is arranged to rest on the beams forming the side wall of the housing.
• the metal element completely covers one side of the cover facing the housing.
• the metallic element is a metallic sheet or woven fabric
• this sheet or this woven fabric extends over the entire side of the cover facing the housing.
• the lid has a rim resting on an edge of the beams.
• the lid has a flat face bordered by this peripheral rim.
• the metal element of the cover and the metal element of the beam, or beams are in electrical continuity via an electrical contact between these metal elements.
• the metal element of the beam extends over the face forming the side wall and over at least one of the edges of the beam.
• the metal element of the cover extends over an edge of this cover and comes into contact with the metal element of the beam, on the edge of this beam.
• this contact thus ensures electrical continuity.
• the metallic elements are metallic sheets or woven fabrics, these sheets or these woven fabrics come into contact with one another.
• the compartment comprises a cooling plate comprising one or more channels which can be traversed by a cooling fluid.
• the plate is made of metallic material, for example aluminum.
• the cooling plate is arranged in a bottom of the housing of the compartment so that the electrical equipment to be cooled rests on this plate, or these plates when the compartment has several .
• the metal element of the beam, or beams comes in electrical continuity with the cooling plate or plates which are metallic.
• a protective cage against electromagnetic interference is formed.
• this cage completely envelops the electrical equipment housed in the compartment.
• the beam or beams comprise slices where the metal element is present, and which rest on the cooling plate or plates so as to ensure electrical continuity between the side wall beams and cooling plates.
• the compartment has a bottom cover.
• the cooling plate or plates rest on this bottom cover.
• this bottom cover is made of a composite material based on plastic.
• the side wall of the compartment is formed by four substantially rectangular faces.
• the invention also relates to an electrical energy storage module comprising a plurality of battery cells in particular arranged in a row, and a compartment as described above, the cells being placed in this compartment in thermal interaction with the cooling plate.
• This module is, thanks to the invention, equipped with an electromagnetic protection function (also called EMC or Electromagnetic Compatibility).
• EMC Electromagnetic Compatibility
• FIG.1 is a schematic view of a compartment according to an embodiment of the invention, in perspective,
• FIG.2 represents the compartment of [Fig.1], in section,
• FIG.3 is a schematic view, in detail, of the compartment of [Fig.1],
• FIG.4 is a schematic and partial view of a compartment according to another example of implementation of the invention.
• FIG.5 is a schematic and partial view of a compartment according to yet another example of implementation of the invention.
• FIG. 1 There is shown in Figures 1 and 2 an electrical energy storage module 100 comprising a plurality of battery cells 99, and a compartment 1.
• This compartment 1 comprises a housing 2 arranged to receive the electrical equipment, and here four beams 3 forming a side wall 4 of this housing 2.
• Compartment 1 further comprises a cover 5 arranged to be assembled with beams 3 to close housing 2.
• each beam 3 comprises a core 7 made of composite material containing a plastic material and reinforcing elements, here of glass or carbon fibers.
• the beams 3 and the cover 5 each comprise a metal element 9, these metal elements 9 being placed in electrical continuity between them so as to participate in electromagnetic protection of the compartment 1.
• the metal element 9 comprises one of the following elements: a metal sheet, a metal fabric, a metal coating, wires or metal fibers placed in bulk.
• Each metal element 9 is made from aluminium, for the wires or the fibres.
• the face 12 of the beam 3 forming the side wall 4 is entirely covered by the metal element 9, which here is a metal sheet, a metal fabric, a metal coating or wires or metal fibers placed in bulk on this face 12 of beam 3.
• the side wall 4 of the compartment is formed by four substantially rectangular faces.
• the metal element 9 of each beam 3 is on the surface of the beam.
• the metallic element is linked to the composite material of the beam 3.
• this coating can be deposited on one face of the composite material of the beam 3.
• the metallic element 9 is a sheet or a woven metal
• this sheet or this woven can be bonded to the composite material during the manufacture of the beam 3.
• Each beam 3 is made by pultrusion, namely an extrusion by drawing, of the composite material.
• the composite material comprises continuous fibers of glass or carbon which serve as mechanical reinforcement.
• the pultrusion is carried out in the direction of these continuous fibers.
• the plastic matrix of the composite material is a thermoplastic or a thermoset.
• the plastic matrix is chosen from: a polyolefin, a polyamide, a polyester.
• Each beam 3 is hollow in the longitudinal direction of the beam concerned, and comprises several cavities 14 from the pultrusion. These cavities 14 are parallel to each other. [93] These cavities 14 are one above the other, in the direction of the height of the housing.
• the cover 5 is made of a composite material containing a plastic material and reinforcing elements, for example glass or carbon fibers.
• the cover 5 is arranged to rest on the beams 3 forming the side wall of the housing.
• the metal element 9 completely covers a face 17 of the cover 5 facing the housing 2.
• the metallic element 9 is a sheet or a metallic woven
• this sheet or this woven 9 extends over this entire face 17 of the cover 5.
• the cover 5 has a rim 18 resting on an edge 19 of the beams 3.
• the cover 5 has a flat face 21 bordered by this peripheral rim 18.
• the metal element 9 of the cover 5 and the metal element 9 of the beams 3 are in electrical continuity via an electrical contact between these metal elements 9.
• each beam 3 extends over the face 12 forming the side wall and the edge 19 of the beam which faces the cover 5.
• the metal element 9 of the cover 5 extends over a rim 18 of this cover 5 and comes into contact with the metal element 9 of the beams 3, on the edge 19 of these beams 3.
• metal elements 9 are metallic sheets or woven fabrics, these sheets or these woven fabrics come into contact with one another.
• the compartment comprises cooling plates 20 comprising one or more channels which can be traversed by a cooling fluid.
• Each plate 20 is made of metallic material, for example aluminum.
• the cooling plates 20 are arranged in a bottom 27 of the housing 2 of the compartment 1 so that the battery cells 99 rest on these plates 20.
• Compartment 1 has a bottom cover 29.
• the cooling plates 20 rest on this bottom cover 29 via, for example, ribs.
• This bottom cover 29 is made of composite material based on plastic.
• the coolant which circulates in the cooling plates 20 can in particular be a liquid refrigerant based on carbon dioxide, such as R744 for example, 2, 3, 3, 3-tetrafluoropropene (or HFO-1234yf) or 1, 1, 1, 2-tetrafluoroethane (or R-134a).
• the coolant can also be a nanofluid.
• the coolant can still be water, possibly including additives.
• the cooling plates 20 form a heat exchanger included in a cooling circuit, not shown, of the type comprising a compressor and other heat exchangers.
• Battery cells 99 include, for example, a plurality of lithium-ion (Li-ion) batteries for use in a hybrid vehicle.
• the plurality of battery cells are Li-ion batteries for use in a battery electric vehicle.
• the cover 5 comprises metal claws 40 arranged to come into contact with the metal element 9 of the beam 3 and to penetrate the material which carries this metal element 9.
• This metal element 9 is thus placed in electrical continuity with the metal claws 40 so as to participate in electromagnetic protection of the compartment 1.
• Each metal claw 40 penetrates the plastic material in which the metal element is embedded, here the material of the beam 3.
• the metallic element 9 comprises one of the following elements: a metallic sheet, a metallic fabric, a metallic coating, metallic threads or fibers placed in bulk.
• the beam 3 and the cover 5 each comprise a metal element 9.
• the metal element 9 of the beam is embedded in the material of the beam 3 and the metal element 9 of the cover 5 is on the surface of the cover 5.
• the metal claws 40 make the electrical connection between the two metal elements 9.
• the metal claws 40 belong to the cover 5 which itself comprises a metal element 9, for example a metal sheet, and the metal claws 40 are in electrical contact with this metal element 9.
• the metal claws 40 of the cover 5 can for example be fixed to the cover 5 by being molded into the material of the cover.
• the metal claw 40 belongs to the beam 4 which comprises a metal element, for example a metal sheet, and the metal claw is in electrical contact with this metal element.
• the metal claws 40 belong to an anti-creep ring 42 interposed between the cover 5 and the beams 3.
• the anti-creep ring 42 is electrically conductive. [130]
• the anti-creep ring 42 comprises a plurality of metal claws 40 distributed around its periphery.
• Each metal claw 40 has a tip 44 capable of penetrating a plastic material.
• a plurality of metal claws 40 are arranged to penetrate the material and come into contact with the metal element 9.
• Compartment 1 has one or more screws 45 to screw cover 5 onto beams 3.
• the anti-creep ring 42 faces the screw 45 so that the screw rod 47 passes through the anti-creep ring 42.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Inorganic Chemistry (AREA)
• Composite Materials (AREA)
• Materials Engineering (AREA)
• Aviation & Aerospace Engineering (AREA)
• Battery Mounting, Suspending (AREA)
• Body Structure For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=80595139

Family Applications (1)

Country Status (5)

Family Cites Families (8)

• 2021
  • 2021-12-16 FR FR2113739A patent/FR3131097B1/fr active Active
• 2022
  • 2022-10-04 WO PCT/EP2022/077576 patent/WO2023110184A1/fr not_active Ceased
  • 2022-10-04 EP EP22802018.6A patent/EP4449541A1/de active Pending
  • 2022-10-04 CN CN202280082743.0A patent/CN118382959A/zh active Pending
  • 2022-10-04 US US18/718,739 patent/US20250046930A1/en active Pending

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