Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• • 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
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
  • H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
  • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
  • H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
  • H01G11/78—Cases; Housings; Encapsulations; Mountings
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
  • H01G11/78—Cases; Housings; Encapsulations; Mountings
  • H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
  • H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
• • 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
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
• • 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
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
  • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• • 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
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • 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
  • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
  • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• • 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
  • H01M50/222—Inorganic material
  • H01M50/224—Metals
• • 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
• • 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
  • H01M2220/00—Batteries for particular applications
  • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
• • 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
  • 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
  • Y02E60/13—Energy storage using capacitors

Definitions

• the invention lies in the general technical field of manufacturing an electrical energy storage module.
• a module comprises a parallelepipedal outer envelope which contains a plurality of electrical energy storage assemblies.
• the present invention more specifically relates to such a module, intended for all types of applications, both stationary (for example the use of the module in a building or shelter, etc.) than mobile (for example the use of the module in a land vehicle, such as a tram, bus or car).
• stationary for example the use of the module in a building or shelter, etc.
• mobile for example the use of the module in a land vehicle, such as a tram, bus or car.
• a module must be positioned in many orientations, in particular to adapt to different arrangements and different dimensions associated with different applications.
• the invention also relates to a method of manufacturing such a module.
• a “module” is an assembly comprising a plurality of energy storage elements, arranged side by side and electrically connected, generally in series. It allows to provide in a single block sets of energy storage elements supporting a higher voltage and providing a larger storage capacity than unitary elements.
• the term "electrical energy storage assembly” means either a capacitor (that is to say a passive system comprising two electrodes and an insulator), or a supercapacitor (that is to say a system comprising at least two electrodes, an electrolyte and at least one separator), in particular of the hybrid type (that is to say comprising an electrode of the type known by the acronym "EDLC” Of the English “electric double-layer capacitor”, that is, an electrochemical double-layer capacitor - and a lithium-battery type electrode), ie a lithium-battery type battery (that is, that is, a system comprising at least one anode, at least one cathode and a liquid or solid electrolyte between the anode and the cathode).
• EDLC electrochemical double-layer capacitor
• ie a lithium-battery type battery that is, that is, a system comprising at least one anode, at least one cathode and a liquid or solid electrolyte between the anode
• an electrical energy storage module which comprises a parallelepiped external envelope containing electrical energy storage assemblies.
• the outer envelope consists of a sleeve made by extrusion and cut according to the length of the module that is to be manufactured, this sleeve being closed at each of its two ends by a plate.
• the wall of this sleeve is shaped so as to have, in cross section, a multi-lobed shape in a portion of a circular arc, each lobe conforming to a part of the contour of the cylindrical energy storage elements.
• Such a module allows to store at most two superimposed rows of energy storage elements, so that each of these elements can be in contact with the wall of the sleeve.
• the energy storage elements positioned in the middle are little maintained by the sleeve.
• Such a module can not be positioned on the wafer without risk of damage to the energy storage elements. Indeed, they may collapse on each other, which could cause short circuits.
• the sleeve also plays a role of thermal conductor to evacuate the heat.
• the cooling of the energy storage elements positioned in the middle is therefore poor since their contact surface with the sleeve is weak.
• this module it is possible to add a filler material capable of transmitting the heat towards the outside, this material filling some or all the existing spaces between the outer envelope and the storage elements. energy.
• This module comprises a housing made of insulating material whose bottom and the cover have partition walls of low height, which delimits spaces for receiving the ends of the batteries.
• the inner surface of these spaces is covered with a layer of foam.
• the foam layer is of greater height on the walls of the module than on the partitions, which means that the foam layer is well formed before the introduction of the batteries and not after closing the module.
• the batteries are inserted into the housing spaces from the top, pressing the layer of foam and the lid is applied to the assembly. The batteries are thus held in place.
• this device does not allow to easily adapt to battery manufacturing tolerance variations, so that in some cases the battery may not fit into the space provided for this purpose or conversely it may be insufficiently retained.
• EP2403050 a device comprising a trunk containing a plurality of lithium electrochemical generators.
• An electrically insulating rigid flame retardant foam fills the space between the inner wall of the trunk and the outer surface of the generators.
• the flame retardant foam achieves excellent thermal insulation, which is the opposite of the purpose of the invention.
• the use of a resin is disadvised by this document.
• Such a structure allows only a “flat” positioning, that is to say on the bottom, but not on any side of the module.
• modules whose envelope is made of plastic.
• the plastic envelope serves in particular as a protection element against climatic weather but does not allow cooling of the cells.
• the envelope alone does not provide protection against electromagnetic currents.
• the tools required for molding this type of envelope is expensive.
• Such a module M comprises a envelope consisting of ten pieces of extruded profiles, assembled using at least sixty screws, to define a lower wall PI, an upper wall PS, a front wall AV, a rear wall AR, two longitudinal side walls PL, as well as interior partitions.
• the module comprises two output terminals BS, located on its front wall AV and which allow its connection to the device to supply energy.
• this module M is considered too heavy, too expensive and difficult to industrialize because of the large amount of parts and screws to assemble.
• This module currently equipped with energy storage elements of the supercapacitor type works very well. However, it is not designed to be placed in positions other than the position called "flat", that is to say the one on which the module M rests on its lower wall Pl.
• this module M may cause the collapse of the energy storage elements inside the module.
• the invention aims to solve the aforementioned drawbacks of the state of the art.
• the object of the invention is therefore to provide an electrical energy storage module comprising a parallelepipedal envelope, inside which several electrical energy storage elements are stored. module that can be positioned on four of its six faces, that is to say its lower wall PI, its rear wall AR and its two side walls PL, or possibly on its front wall AV, even if in this case the access at the BS output terminals is more difficult.
• This objective must be achieved while providing a mechanically resistant module that is lighter, less expensive and less complex to manufacture than the known modules of the state of the art.
• Another object of the invention is also to provide a module as aforesaid, the cooling of the electrical energy storage elements is provided correctly.
• the invention relates to an electrical energy storage module containing electrical energy storage elements.
• this module comprises:
• a parallelepipedal sheet metal envelope inside which said electrical energy storage elements are housed said envelope comprising a bottom assembled to a five-sided hood,
• At least one electronic card disposed in a facade element, itself fixed on one of the faces of said parallelepipedic envelope,
• first resin layer which extends from said bottom over a portion only of the height of said electrical energy storage elements and by a second resin layer which extends from one of the hood faces to a portion only of the height of said electrical energy storage elements.
• the module can be positioned on its bottom wall, its rear wall, its front wall or its side walls.
• the energy storage elements are held by the resin and do not risk collapsing on each other.
• sheet metal preferably fine, makes it possible to lighten the total weight of the module.
• this sheet combined with the resin, is sufficient to properly maintain the energy storage elements.
• the resin combined with the use of a metal shell (good thermal conductor), facilitates the evacuation of heat from the electrical energy storage elements to the outside.
• the resin also enhances the tightness of the module.
• the fact of having an electronic card arranged in a facade element outside the envelope also makes it possible not to have access to the interior of the latter and not to degrade the setting of the storage elements. of energy in this envelope.
• the module is optimized in terms of weight, cost and sealing.
• the module comprises two lights provided in the envelope for the injection of the resin into the envelope, and preferably closure plugs of the two lights;
• the two lights are formed on the front face of the hood, one located near the bottom and the other located near the upper face of the hood;
• the two lights are formed one in the bottom, the other in the upper face of the hood;
• the casing is impervious to liquids and dust;
• the envelope is made of a metal sheet whose thickness is at most 5 mm;
• the module comprises a core, preferably central, forming a spacer disposed between the bottom and the cap perpendicular to them;
• the resin ranges from 5% to 20%, preferably 5% to 12%, of the height of the electrical energy storage elements;
• the wall of its envelope has a crenellated surface;
• the casing has on at least one of its faces, a plurality of heat dissipating elements, such as cooling fins, preferably welded to this face;
• the facade element comprises a rear portion and a front portion provided with assembly means for assembling them to form an enclosure for receiving said electronic card, said rear part being made of a material electrically insulating and being provided with fixing means on one of the faces of the casing and the front part being made of an electrically conductive material, in particular metal; the front element is pierced with orifices permitting the passage of the output terminals, of positive and negative polarity, of said module.
• the invention also relates to a method of manufacturing this electrical energy storage module, which comprises the steps of:
• FIG. 1 is a perspective diagram showing an electrical energy storage module according to the state of the art
• FIG. 2 is an exploded perspective view showing an exemplary embodiment of the electrical energy storage module according to the invention
• FIG. 3 is a perspective view showing the module of FIG. 2 in the assembled position
• FIG. 4 is a diagrammatic view, in section, of a portion of the module according to the invention.
• FIG. 5 is a view from above, in perspective, of the inside of the envelope of the module according to the invention.
• FIG. 6 is an exploded detail view, in perspective, of a facade element allowing the storage of the electronic card of the module according to the invention
• FIG. 7 is a detailed view of this same module showing the mounting of an output terminal
• FIG. 8 is a detail view in section of a part of the storage module according to the invention.
• FIG. 9 is a partial sectional view of the storage module according to the invention.
• the module 1 comprises a parallelepipedal envelope 2, within which several electrical energy storage elements 3 are housed.
• the casing 2 comprises a five-sided cap 21 and a bottom 22, intended to be assembled together, as shown in FIG. 3, in order to delimit an enclosure, inside which the housings are housed. electrical energy storage elements 3.
• the cover 21 and the bottom 22 are made of a material, preferably electrically conductive, and preferably in a thin metal sheet, for example aluminum or steel. Its thickness is preferably less than 5 millimeters, more preferably between 0.5 mm and 5 mm.
• the sheet is preferably of a constant thickness. However, a sheet with areas of varying thicknesses is usable.
• the cover 21 has five faces, namely a front face 210, an opposite rear face 211, an upper face 212 and two longitudinal side faces 213, 214.
• this cover 21 is obtained by cutting a flat sheet so as to define the four faces perpendicular to the upper face 212, then by folding and welding of the different faces along their respective edges.
• the stamping is also possible.
• the sheet may be shaped, preferably before folding, for example by stamping, so as to have a crenellated surface, as appears better in FIG. 4.
• the sheet is deformed by alternatively, to present rectilinear protruding portions 216 and rectilinear hollow portions or grooves 217.
• Such a structure makes it possible to mechanically reinforce the thin sheet and therefore the module, without increasing the weight thereof.
• This central core 215 extends over at least a portion of the length, or even the width of the cover 21. It preferably has a C-section, the branches of the C being secured, preferably by welding, the cover 21 and the upper face 212.
• This central core 215 acts as reinforcement and stiffener module. Its arrangement inside the hood 21 and the positioning of its anchoring points are chosen so as to optimize the mechanical maintenance sought, particularly with respect to vibratory stresses, shocks, electrical stresses causing swelling of the elements 3, etc.
• Such a cover 21 alone replaces nine pieces of a module of the state of the art. It thus makes it possible to obtain an optimal mass gain.
• the bottom 22 is advantageously made from a thin sheet of square or rectangular shape, the edges 221 are folded. This makes it possible to have a bottom that caps the lateral faces 213, 214, before 210 and rear 211 of the cover 21.
• the cover 21 and the bottom 22 are assembled for example by snapping or with a few screws.
• the bottom 22 preferably has an outer flat face 222, on which are preferably disposed heat dissipating elements 223, such as cooling fins (see Figure 2).
• these cooling fins 223 have a circular contour and are arranged vertically of the energy storage elements 3 which are themselves arranged inside the envelope 2. These cooling fins are for example welded on the bottom 22. This allows a reduction of the module cost, compared to those of the prior art, in which the cooling fins are obtained by machining in the mass.
• the fins 223 may also be welded by resistance welding (or "SR" welding), by friction stir welding, riveted by self-punch riveting or brazed, for example.
• the fins 223 can also be glued with a thermally conductive adhesive, this action being completed or not by one of the aforementioned mechanical fasteners.
• heat dissipating elements could also be provided on the faces of the cover 21.
• the energy storage elements 3 are interconnected successively in pairs by a connection strip 30, (visible only in FIG. 8), for a generally series connection, and the two storage elements. 3 at the two ends of the series connection are each further connected by a suitably shaped connecting strip, respectively to a positive output terminal and a negative output terminal of the module. These two output terminals are referenced 31.
• These output terminals 31 allow the connection of the module 1 to a device to supply energy.
• the facade element 50 is easily removable so as to allow access to the electronic card 4, especially in the case of maintenance operations to be performed on it.
• the positioning of the electronic card 4 out of the envelope 2 makes its access easier, since it is no longer necessary to disassemble said envelope, as is the case in the known devices of the state of the art.
• the front element 50 containing the electronic card 4 is fixed on the front face 210 of the envelope 2.
• this front element 50 for example against one of the side faces 213, 214.
• the front element 50 comprises a rear part 51 and a front part 52, assembled so as to define a receiving chamber of said electronic card 4.
• the rear portion 51 has a generally parallelepipedal shape, preferably provided with peripheral flanges 512. It is made of an electrically insulating material, such as a plastic material. It plays the role of interface between the electronic card 4 and the envelope 2. It contributes in particular to the electrical insulation of the different voltage networks (high voltage, low voltage and ground). It also makes it possible to physically separate the electronic card 4 from the energy storage elements 3.
• this rear portion 51 may incorporate fastening means, such as latching means, on one of the faces, preferably the front face 210, of the envelope. Such means are not visible in the figures.
• this rear portion 51 can integrate a connector
• the rear part 51 can be used to hold the output terminals 31 or "power terminals" of the module 1.
• the part 51 can be provided with a central orifice 510 for the passage of the terminal 31 and several orifices 511 for the passage of fixing screws. The output terminal 31 is thus retained between the portion 51 and the front face 210.
• the front portion 52 is advantageously made of an electrically conductive material, such as metal, preferably aluminum or steel. Preferably, use the same sheet as that used to make the cover 21 and the bottom 22.
• the front portion 52 has a shape similar to the rear portion 51.
• the front portion 52 is configured to be assembled to the rear portion 51 by any suitable fastening means, for example by means of screws 53.
• the front portion 52 protects the electronic card 4 against shocks and electromagnetic currents. It also helps to seal the module, liquids and gases.
• the module 1 thus has two main joint planes, namely a first between the cover 21 and the bottom 22 at the periphery thereof and the other between the front element 50 and the face of the module against which this facade element is applied.
• a seal may be provided in a single plane.
• a seal 54 may be provided between the rear portion 51 and the front face 210, (see Figure 6). In both cases, this simplifies the structure of the joint and its implementation. The module is thus more watertight, more robust and more reliable.
• the storage elements 3 are held in place inside the casing 2, and immobilized inside thereof, by a resin layer 7 which extends only over a part of their height, as shown in Figures 8 and 9.
• the resin 7 fills the spaces existing between two adjacent energy storage elements 3, and between these energy storage elements 3 and the cover 21 and / or the base 22.
• Such a resin 7 allows in particular the blocking of energy storage elements 3 along the longitudinal axis x and the lateral axis y (see Figure 3) of the module.
• the blocking along the vertical axis z can for example be achieved by using a foam element disposed at the vertical end of the energy storage elements 3, opposite that which is in contact with the bottom 22. It will be possible to refer to FIG. this subject to document FR2916306.
• a first resin layer 7 is formed from the bottom 22 and over part of the height of the energy storage elements 3, preferably at a height of between 5% and 20% and preferably still between 5% and 12% of their height.
• a second resin layer 7 is also formed from the upper face 212 of the cover 21 over only a portion of the height of the energy storage elements 3, for example over 5% to 20% of their height, preferably between 5% and 12% of their height.
• electrical energy storage elements 3 are held solely by the first and second resin layers 7, that is, there is no resin layer at the level of the central part of the element 3.
• the resin 7 is chosen so as to have at least one of the following properties: having a good thermal conductivity, so as to transmit the heat generated by the elements 3, to the envelope 2,
• this resin is polyurethane or silicone.
• a resin makes it possible to block the elements 3 while admitting wider geometrical tolerances.
• the various elements constituting the storage module 1, as represented in FIGS. 2 to 9, are assembled as follows.
• the various elements of electrical energy storage 3 are assembled together in pairs by means of the terminal strips 30, so as to form a power block 32, that is to say a set of these elements 3 .
• this power unit 32 is made, so as to connect the electrical energy storage elements 3 located at the ends of the series connection, to the electronic card 4.
• the different electrical insulators 33, 34 of the electrical energy storage elements 3 are then put in place.
• This is for example an electrically insulating elastomer layer 33 and polypropylene (PP) cups 34 disposed at both ends of the elements 3, (see FIGS. 8 and 9).
• the power unit, referenced 32, is then disposed on the sheet metal base 22, already equipped with the cooling fins 223, if it has one in the embodiment envisaged.
• the cover 21 is then positioned on the bottom 22 and these two elements are assembled so as to grip the power block.
• the first resin layer 7 is then formed through a lumen 218 (FIG. 2), formed in the envelope 2, for example in the front face 210, near the bottom 22.
• the resin is left behind. polymerize for the necessary time, which may be for example at least 24 hours and which is a function of the type of resin used.
• the module 1 is then turned over so that the bottom 22 is oriented upwards, then the second resin layer 7 is produced by injection through a light 219 (FIG. 2), formed in the envelope 2, for example in the front face 210, close to the upper face 212.
• a light 219 FIG. 2
• the lights 218, 219 can also be used to pass electrical cables joining the inside of the module to the electronic card 4.
• the cups 34 are removed and the resin 7 then comes into contact with the connecting bars 30 and the elastomer layers 33.
• the rear part 51 of the facade element 50 is then fixed against one of the walls of the casing 2, for example the front face 210, as shown in the figures. This attachment is achieved by preferably inserting between them a seal.
• Closing plugs can also be provided to close the lights
• the electronic card 4 is then installed and electrically connected to the power block 32.
• the output terminals 31 are also fixed through the orifices 510.
• the front portion 52 of the facade element 50 is then fixed against the rear portion 51, having disposed between them a seal.
• one or more orifices or lights could be provided either in the bottom 22 or on the upper face 212 of the cover 21, to allow the introduction of the resin 7. In this case, it it would be necessary to provide a closure plug for this (or these) orifice (s).

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Manufacturing & Machinery (AREA)
• Inorganic Chemistry (AREA)
• Casings For Electric Apparatus (AREA)
• Electric Double-Layer Capacitors Or The Like (AREA)
• Sealing Battery Cases Or Jackets (AREA)
• Battery Mounting, Suspending (AREA)
• Secondary Cells (AREA)

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Citations (6)

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• 2015
  • 2015-10-05 FR FR1559425A patent/FR3042093B1/fr not_active Expired - Fee Related
• 2016
  • 2016-10-05 EP EP16777989.1A patent/EP3360176B1/fr not_active Not-in-force
  • 2016-10-05 US US15/765,996 patent/US20180287112A1/en not_active Abandoned
  • 2016-10-05 KR KR1020187012760A patent/KR20180064485A/ko not_active Withdrawn
  • 2016-10-05 JP JP2018517621A patent/JP2019501477A/ja active Pending
  • 2016-10-05 ES ES16777989T patent/ES2752624T3/es active Active
  • 2016-10-05 WO PCT/EP2016/073762 patent/WO2017060284A1/fr not_active Ceased
  • 2016-10-05 CN CN201680058478.7A patent/CN108140770A/zh active Pending
  • 2016-10-05 CA CA3000587A patent/CA3000587A1/fr not_active Abandoned

Patent Citations (6)

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