WO2022214572A1 - Dispositif de traitement thermique pour un element electrique et/ou electronique - Google Patents
Dispositif de traitement thermique pour un element electrique et/ou electronique Download PDFInfo
- Publication number
- WO2022214572A1 WO2022214572A1 PCT/EP2022/059192 EP2022059192W WO2022214572A1 WO 2022214572 A1 WO2022214572 A1 WO 2022214572A1 EP 2022059192 W EP2022059192 W EP 2022059192W WO 2022214572 A1 WO2022214572 A1 WO 2022214572A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rigid support
- support part
- electrical
- thermal regulation
- regulation means
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 49
- 238000001816 cooling Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 21
- 230000002093 peripheral effect Effects 0.000 description 16
- 239000012530 fluid Substances 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 8
- 239000012809 cooling fluid Substances 0.000 description 6
- 229920001410 Microfiber Polymers 0.000 description 5
- 239000003658 microfiber Substances 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007743 anodising Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the 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
- H01M50/204—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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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 heat treatment device for an electrical and/or electronic element, for example a battery element suitable for equipping an electrical storage device, in particular for a motor vehicle.
- the electrical and/or electronic elements of an electronic system likely to be affected by the present invention may consist of computer server components as well as components of electrical energy storage systems, in particular batteries, for motor vehicles.
- electrical storage devices In the field of motor vehicles, electrical storage devices, otherwise known as batteries, can be used within vehicles in order to ensure the supply of various functions of said vehicles.
- the electrical storage devices usually used comprise at least one battery cell intended to store and/or deliver electrical energy.
- the operation of these electronic storage devices causes an increase in their temperatures. Indeed, the battery cell in operation, both to deliver electrical energy or to be recharged, releases a large quantity of calories having the effect of increasing the temperature of the electrical storage device, and which may ultimately reduce the performance of the electrical storage device and/or damage it.
- thermal treatment devices make it possible, for example, to reduce the temperature of the battery cell of the electrical storage device during the operation of the latter.
- the electrical storage devices have the function of supplying a low voltage network associated with electrical accessories of the vehicle, the cooling problems are simple to implement, in particular because said electrical storage devices have relatively large volumes. weak.
- the invention falls within this context and aims to offer an alternative to thermal regulation devices for electronic systems comprising electrical and/or electronic components, whether computer servers, motor vehicle batteries or any other type of electronic systems whose components are likely to heat up during their operation or their recharging, by proposing a thermal regulation device which is capable of bringing the electrical or electronic component to the desired temperature in a set time. It is thus sought to improve the performance of thermal treatment devices used to regulate the temperature of electronic systems, in particular when the latter have a large volume, for example for batteries used for the propulsion of an electric or hybrid vehicle.
- the invention therefore relates to a heat treatment device for at least one electrical and/or electronic element comprising at least one thermal regulation means, the heat treatment device being characterized in that it further comprises a rigid support part comprising at least one cavity for receiving at least one electric and/or electronic element, the rigid support part being made of a material with high thermal conductivity.
- the heat treatment device can in particular be used for an electric and/or electronic element of the battery cell type of an electric storage device, otherwise called a battery, of a vehicle.
- the function of the heat treatment device is to regulate the temperature of the battery cell, for example during its operation by cooling it, or during start-up of the battery by preheating it.
- the function of the rigid support part is to form an intermediate part between the thermal regulation means, formed at least in part by the channel, and the electrical and/or electronic element housed in the reception cavity, making it possible to ensure the positioning of the electrical and/or electronic elements with respect to each other and to transmit by diffusion the calories and/or cold temperatures of the thermal regulation means to each of the electrical and/or electronic elements.
- Such a diffusion of calories and/or cold temperatures generated by the thermal regulation means takes place by means of the thermally conductive material forming the rigid support part.
- the rigid support part allows the diffusion of calories and/or cold temperatures produced by the thermal regulation means as far as the at least one receiving cavity of the rigid support part intended to house the electrical element. and/or electronics.
- the rigid support part is made of a material with high thermal conductivity to specifically play the role of heat diffuser whether for heating or cooling effects of the electrical and/or electronic elements.
- Material with high thermal conductivity means the fact that at 20° C., the thermal conductivity of the material chosen is at least 120 W/m/K.
- the thermal conductivity value is to be considered as the average of the thermal conductivity values of each material.
- the high thermal conductivity material of the rigid support part comprises aluminum.
- the use of aluminum allows in particular a simple production of the rigid support part and specific shapes allowing the holding of the electrical and/or electronic elements, while offering thermal conductivity characteristics at least equal to those expected according to the invention.
- the rigid support part may comprise at least in part extruded graphite or other extruded materials, such as extruded aluminum alloys, provided that these have a high thermal conductivity as expected.
- the rigid support part is made in such a way as to be electrically insulating.
- This electrical insulation characteristic can in particular be obtained by a specific surface treatment, for example by anodizing the aluminium, or by adding an insulating material between the electrical and/or electronic elements and the support part.
- the material chosen to make the support part may in particular consist of an aluminum alloy, the alloy elements being chosen to increase the electrical resistivity of the rigid support part.
- all series of aluminum can be used, the material chosen may in particular consist of an aluminum alloy corresponding to a series 1000, a series 3000, or even a series 6000.
- the material(s) chosen to form the rigid support part can make it possible to optimally diffuse the calories and/or cold temperatures generated by the at least one thermal regulation means while electrically isolating the at least one electrical element and/or electronics housed in the rigid support piece.
- Such material can in particular be aluminum nitride, which combines good thermal conductivity and electrical insulation.
- the rigid support part comprises a plurality of receiving cavities. It is then understood that each of the reception cavities of the rigid support part is capable of receiving a separate electric and/or electronic element. It is also understood that each of the electrical and/or electronic elements housed in each of the receiving cavities of the ngide support part is separated by material with high thermal conductivity which the said rigid support part comprises.
- the plurality of cavities for receiving the rigid support part is arranged in a matrix. More precisely, the receiving cavities of the plurality of receiving cavities are arranged such that they are aligned along at least two longitudinal straight lines which are parallel and distinct from each other. According to a particular arrangement, the array of receiving cavities has a staggered arrangement, with the receiving cavities aligned along one of the longitudinal straight lines which are offset longitudinally with respect to the receiving cavities aligned along a longitudinal straight line adjacent. Advantage is taken of such a staggered characteristic in that it makes it possible to obtain a regular quantity of high thermal conductivity material between each of the receiving cavities of the rigid support part. This makes it possible to standardize the distribution of calories and/or fngories to each of the battery cells and also to limit the distribution of calories from one battery cell to another.
- the receiving cavity opens on either side of the nside support piece.
- the reception cavity extends in the rigid support part in a vertical direction of said rigid support part, the reception cavity then emerging vertically on either side of the rigid support part.
- the ngide support part can be produced for example by an extrusion process, which makes it possible to form the through-receiving cavities, that is to say opening out on either side of said rigid support part.
- the thermal regulation means is arranged in contact with the rigid support part. More specifically, the thermal regulation means is arranged directly in contact with the rigid support part, that is to say without any intermediate element between them. Advantage is taken of such a feature in that it allows to limit the energy loss between the thermal regulation means and the rigid support part.
- a first face and a second face of the rigid support part are defined, opposite one another in the vertical direction of said rigid support part. It is then understood that the at least one receiving cavity opening out on either side of the rigid support part, is open at the level of the first face and the second face of said rigid support part.
- a peripheral zone of the rigid support part is also defined, said peripheral zone extending such that it vertically connects the first face and the second face of the rigid support part.
- the at least one thermal regulation means is in contact with the rigid support part and it can more particularly be in contact with one of the first face and/or the second face of the rigid support part, or at the contact with its peripheral zone.
- the at least one thermal regulation means is a heating element.
- the heating element can take the form, for example, of a resistive element or even of a plate for circulating a heating fluid, this heating fluid possibly consisting of a conventional heat transfer liquid, glycol water, or even an oil.
- the heating element can take the form of a flexible strip comprising resistive elements and being placed in contact with the peripheral zone.
- Such a heating element in the form of a flexible strip advantageously makes it possible to follow the contours of the ngide support part and thus to surround the electrical and/or electronic elements by extending over the entire circumference of the rigid support part, at the level of its peripheral zone.
- the at least one thermal regulation means is a cooling system.
- the cooling system can then take the form of a plate within which a cooling fluid circulates, this cooling fluid possibly consisting of a coolant or coolant of the glycol water type, or else a refrigerant fluid of the 1234yf type, 134a or other.
- the plate of the cooling system can be arranged in contact with one of the first face or the second face of the rigid support part so that said plate participates in maintaining the at least one electrical element and / or electronics in the at least one receiving cavity of the rigid support part.
- the heat treatment device comprises at least a first thermal regulation means and a second thermal regulation means respectively forming the heating element and the cooling system positioned in contact with distinct parts of the workpiece. rigid support. More particularly, the first thermal regulation means is arranged in contact with the peripheral zone of the support part and the second thermal regulation means is arranged in contact with one of the faces of the rigid support part.
- the thermal regulation means comprises at least one fluid circulation conduit.
- the fluid can then be a cooling fluid or a heating liquid.
- the thermal regulation means may comprise microfibers, at least one of the microfibers forming the at least one fluid circulation conduit.
- At least one heat-conducting interface is arranged in the at least one receiving cavity, the heat-conducting interface being configured to be arranged between the rigid support part and the electrical element and/ or electronic.
- the heat-conducting interface has the particular function of limiting the presence of air between the electrical and/or electronic element and the rigid support part at the level of the receiving cavity, and therefore of improving the heat exchange. between the rigid support part and the electric and/or electronic element.
- the heat-conducting interface can in particular take the form of a flexible strip of laminated graphite providing contact between the electrical and/or electronic element and the rigid support part.
- the invention also relates to an electronic system comprising at least one electric and/or electronic element and at least one heat treatment device according to any one of the preceding characteristics.
- the electronic system may in particular consist of a computer server or else of an electrical energy storage system, in particular a battery, for a motor vehicle.
- the invention then relates to a battery comprising at least one battery cell and at least one heat treatment device as mentioned above.
- the at least one electrical and/or electronic element and the heat-conducting interface are arranged in the at least one receiving cavity of the rigid support part.
- the invention also relates to a method for assembling an electronic system according to the preceding characteristics during which, during a step of inserting the electrical and/or electronic elements into the receiving cavities, the element is first surrounded electrical and/or electronic of the heat-conducting interface and the assembly formed by the electrical and/or electronic element and the heat-conducting interface is inserted into the receiving cavity of the rigid support part.
- the assembly formed by the electrical and/or electronic element and the heat-conducting interface is force-fitted in the receiving cavity of the rigid support part, in such a way so that said assembly is capable of being maintained within the receiving cavity without requiring any additional part.
- the arrangement of the heat-conducting interface between the rigid support part and the electrical and/or electronic element makes it possible to limit the presence of air between the latter, so that the heat exchange between them is optimum.
- a step of positioning the thermal regulation means is first carried out during which the at least one thermal regulation means is placed against one of the first face or the second face of the rigid support part, then the insertion step is carried out during which the electrical and/or electronic element is inserted into one of the cavities of the part rigid support so that said assembly is in abutment against the thermal regulation means.
- the electrical and/or electronic element is inserted into the receiving cavity of the rigid support part at the level of the face opposite to the face of said rigid support part against which the thermal regulation means is arranged.
- FIG 1 is a general view of an electronic system comprising a heat treatment device according to the invention and a plurality of electrical and/or electronic elements;
- FIG 2 is a top view of a rigid support part of the heat treatment device of Figure 1, showing a plurality of receiving cavities respectively configured to receive one of the electrical and/or electronic elements;
- FIG 3 is an exploded view of part of the electronic system of Figure 1 showing the rigid support part of Figure 2, the plurality of electrical and/or electronic elements and at least one heat-conducting interface.
- a heat treatment device will be more particularly described for an electronic system in the form of a motor vehicle battery, with electrical and/or electronic elements in the form of battery cells. But it should be noted that the following description can be understood with electronic systems of another kind, such as computer servers for example.
- FIG. 1 illustrates an electronic system in the form of an electrical storage device 1, otherwise called battery 1, for a vehicle.
- the electrical storage device 1 comprises at least one heat treatment device 2 according to the invention and at least one battery cell 4.
- the electrical storage device comprises a plurality of battery cells 4, here thirty-nine in number, without this being limiting of the invention.
- the heat treatment device 2 has the particular function of regulating the temperature of the battery cells 4, whether during operation or when starting the vehicle. Depending on the configuration of the heat treatment device, the latter can, during operation of the electrical storage device 1, cool the battery cells 4 in order to avoid, for example, overheating phenomena which may ultimately damage the electrical storage device 1, and/or preheating the battery cells 4 before starting the vehicle.
- the heat treatment device 2 therefore makes it possible to optimize the use of the electrical storage device 1 by limiting its deterioration and consequently that of the battery cells 4.
- the heat treatment device 2 comprises at least one rigid support part 6 and at least one thermal regulation means 8.
- the rigid support part 6 comprises at least one receiving cavity 10 suitable for housing one of the battery cells 4.
- the receiving cavity 10 then forms a housing, here cylindrical of circular section, in order to present a complementary shape with the battery cells.
- the main axis of extension of the receiving cavity is parallel to a vertical direction V of the rigid support part 6. More particularly, the receiving cavity 10 is open on both sides.
- the rigid support part can be produced by an extrusion operation making it possible to form the through-receiving cavity, that is to say which opens on either side of said support part rigid.
- the rigid support part 6 comprises a plurality of receiving cavities 10 as defined previously.
- the receiving cavities 10 are arranged such that they are aligned along at least two distinct longitudinal straight lines, perpendicular to the vertical direction V of the rigid support part 6.
- the rigid support piece 6 comprises a plurality of receiving cavities 10 arranged in a matrix. More particularly, in this example, the reception cavities 10 aligned along one of the longitudinal straight lines are staggered with respect to the reception cavities 10 aligned along the other longitudinal straight line.
- Advantage is then taken of the staggered arrangement of the receiving cavities relative to each other, in that it makes it possible to maintain a thickness of the material with high thermal conductivity of the rigid support part sufficient to ensure the thermal regulation of the battery cells.
- a minimum spacing E of the battery cells between them is defined, taken between two adjacent battery cells, the spacing E between two adjacent battery cells making it possible to avoid the transfer of calories from one battery cell to the other. 'other.
- the at least one thermal regulation means 8 is placed in contact with the rigid support part 6. More particularly, a first face 12 and a second face 14 of the rigid support 6, opposite to each other in the vertical direction V of said rigid support piece 6. It is then understood that each of the reception cavities 10 mentioned above is open at the level of the first face 12 and of the second face 14 of the rigid support part 6.
- the at least one thermal regulation means 8 is placed in contact with one of the faces of the rigid support part and/or the peripheral zone of said rigid support part. More specifically, the at least one thermal regulation means 8 is arranged directly in contact with one of the faces 12, 14 and/or the peripheral zone 16 of the rigid support part 6, such that no intermediate element is arranged between the thermal regulation means 8 and the rigid support part 6.
- the at least one thermal regulation means 8 is capable of modifying the temperature of the battery cells 4, which the rigid support part 6 carries.
- the thermal regulation means 8 is capable of heating and/or cooling the battery cells 4 without requiring contact with the latter. Advantage is taken of such a characteristic in that it makes it possible to use a single thermal regulation means 8 to heat and/or cool all of the battery cells 4.
- the thermal regulation of the battery cells 4 is carried out by diffusion of the calories and/or cold temperatures generated by the thermal regulation means 8 to the battery cells 4, through the rigid support part 6.
- the rigid support part 6 ensures the diffusion of the calories and/or cold to the battery cells 4.
- the ngide support piece 6 according to the invention is made of a material with high thermal conductivity.
- Material with high thermal conductivity means the fact that at 20°C, the thermal conductivity of the material with high thermal conductivity chosen is at least 120W/m/K.
- the high thermal conductivity material makes it possible to increase the diffusion performance of the calories and/or cold temperatures generated by the at least one thermal regulation means 8, so that they are more quickly and more efficiently transmitted to the battery cells 4 housed in the rigid support piece 6, and so that the thermal regulation, whether in heating or cooling, is as homogeneous as possible.
- the material with high thermal conductivity can comprise at least in part aluminum having a thermal conductivity of the order of 237 W/m/K at 20° C., if necessary mixed with other materials which may exhibit conductivity lower proper thermal when the alloy thus formed has a thermal conductivity at least equal to 120 W/m/K at 20°C.
- the high thermal conductivity material chosen to form the rigid support part is associated with an electrical insulation layer, whether this layer is produced by a surface treatment of the material or by the addition of a layer of an insulating material, in order to electrically insulate the battery cells 4, at least from the thermal regulation means 8.
- the thermal treatment device 2 comprises two different thermal regulation means, including a first thermal regulation means 8a and a second thermal regulation means 8b.
- Each of the first means of thermal regulation 8a and of the second means of thermal regulation 8b is then placed in contact with the rigid support part 6, against separate parts thereof.
- the first thermal regulation means 8a is arranged in contact with the peripheral zone 16 and the second thermal regulation means 8b is arranged in contact with the second face 14 of the rigid support part 6.
- the first thermal regulation means 8a forms a heating element 18 and the second thermal regulation means 8b forms a cooling system 20.
- the first thermal regulation means 8a forming the heating element 18 can take the form of a flexible strip 18a comprising resistive elements, said flexible strip 18a being capable of following the contours of the peripheral zone 16 of the rigid support part 6
- the resistive elements of the flexible strip 18a each comprise a free end which protrudes from said flexible strip 18a in order to allow their connection to an electrical power supply network.
- the flexible strip 18a forming the first thermal regulation means 8a is in contact with the entire peripheral zone 16 of the rigid support part 6, such that it completely surrounds the rigid support part and the battery cells carried by this support part.
- the first thermal regulation means 8a can take the form of the flexible strip 18a comprising at least micro fibers instead of aforementioned resistive elements.
- the ends of the microfibers extend outside the band hose 18a such that said ends are fluidically connected to a fluid power source which is capable of supplying a heating fluid within said microfibers.
- the first thermal regulation means can be formed by one or more rigid plates arranged on part of the peripheral zone of the rigid support part.
- the at least one rigid plate can be a resistive plate or a heating fluid circulation plate.
- the second thermal regulation means 8b forming the cooling system 20 can take the form of a cooling fluid circulation plate 20a, comprising at least one cooling fluid circulation conduit.
- the circulation plate 20a of the cooling fluid cooling is here arranged in contact with the second face 14 of the rigid support part 6.
- this second face 14 forms a lower face facing the ground on which the vehicle travels .
- the second face 14 forms a means for holding the at least one battery cell 4 housed in one of the receiving cavities 10 of the rigid support part 6, in the vertical direction V thereof, when, as shown in the figures, the receiving cavities pass through and open onto this second face 14.
- thermal regulation means could be different without departing from the context of the invention since their presence combined with the rigid support part made of high conductivity material thermal makes it possible to optimize the heat exchange with the battery cells held in position by the support part.
- the heat treatment device 2 comprises at least one heat-conducting interface 22. More specifically, the heat-conducting interface 22 is arranged in one of the cavities of reception 10 of the rigid support piece 6 and in such a way that it is placed between the rigid support piece 6 and the battery cell 4. The heat-conducting interface 22 then has the function of facilitating the transmission by contact of calories and/or cold temperatures between the rigid support part 6 and the battery cell 4 in particular by limiting the air present between these two parts, the presence of air having the effect of thermally insulating the battery cell 4.
- the heat-conducting interface 22 may comprise a resistive element, for example a nickel sheet, connected to an electrical power supply. In this way, the heat-conducting interface is capable of transmitting heat to the battery cell 4, said resistive element housed in the conductive interface forming the first thermal regulation means.
- FIGS. 1 and 3 A method for assembling the battery 1 according to the invention will now be described by means of FIGS. 1 and 3. It should be considered that in the description of the example method which will follow, all the steps of the method of assembly of the battery 1 will not be described and that only the steps relating to the heat treatment device 2 according to the invention will be the subject of a detailed description.
- the method of assembling such a battery 1 according to the invention comprises at least two steps including a step of inserting the battery cells 4 into the receiving cavities 10, and a step of positioning the thermal regulation means 8 in contact with the rigid support piece 6. These at least two steps can then be carried out according to separate production orders.
- the step of positioning the thermal regulation means 8 is first carried out.
- the first thermal regulation means 8a and the second thermal regulation means 8b are then placed respectively against the peripheral zone 16 and the second face 14 of the rigid support part 6.
- the step of inserting the battery cells 4 into the receiving cavities 10 of the rigid support part 6 is carried out.
- the insertion step may include a sub-step of placing the heat-conducting interface 22 around the battery cell 4 during which the heat-conducting interface 22 is wound around the battery cell 4.
- the assembly formed by the battery cell 4 and the heat-conducting interface 22 is placed in one of the receiving cavities 10 of the rigid support part 6 More particularly, the assembly formed by the battery cell 4 and the heat-conducting interface 22 is inserted into one of the reception cavities 10 at the level of the first face 12 of the rigid support part 6 until that said assembly is in abutment against the second thermal regulation means 8b positioned against the second face 14 of said rigid support piece 6.
- the maintenance of the battery cell 4 in the receiving cavity 10 is performed at least by the second thermal regulation means 8b when it is positioned against the second face 14 of the part of rigid support
- the step of inserting the battery cells 4 into the receiving cavities 10 of the rigid support part 6 is first carried out.
- this step of inserting of the battery cells 4 can comprise the two sub-steps mentioned above, during which the heat-conducting interface 22 is placed around the battery cell 4, then the assembly formed by the battery cell 4 is inserted by force and the heat-conducting interface 22 in one of the receiving cavities 10 of the rigid support part 6.
- the step of positioning the thermal regulation means 8 is then carried out, during which the first thermal regulation means 8a and the second thermal regulation means 8b are placed respectively against the peripheral zone 16 and the second face 14 of the workpiece. rigid support 6 as previously described
- the invention cannot however be limited exclusively to the embodiments and to the examples of methods described and illustrated, and also applies to all means or configurations, and to any combination of such means or configurations, making it possible in an equivalent manner to improve the thermal regulation of at least one electric and/or electronic element, when a combination between a thermal regulation means and a rigid part forming a support for an electric and/or electronic element is implemented.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Secondary Cells (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/554,016 US20240194971A1 (en) | 2021-04-07 | 2022-04-07 | Heat management device for an electrical and/or electronic component |
EP22721313.9A EP4320672A1 (fr) | 2021-04-07 | 2022-04-07 | Dispositif de traitement thermique pour un element electrique et/ou electronique |
CN202280026490.5A CN117157805A (zh) | 2021-04-07 | 2022-04-07 | 用于电气和/或电子部件的热量管理装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2103559 | 2021-04-07 | ||
FR2103559A FR3121815B1 (fr) | 2021-04-07 | 2021-04-07 | Dispositif de traitement thermique pour un élément électrique et/ou électronique |
Publications (1)
Publication Number | Publication Date |
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WO2022214572A1 true WO2022214572A1 (fr) | 2022-10-13 |
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Family Applications (1)
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PCT/EP2022/059192 WO2022214572A1 (fr) | 2021-04-07 | 2022-04-07 | Dispositif de traitement thermique pour un element electrique et/ou electronique |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240194971A1 (fr) |
EP (1) | EP4320672A1 (fr) |
CN (1) | CN117157805A (fr) |
FR (1) | FR3121815B1 (fr) |
WO (1) | WO2022214572A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019221723A1 (fr) * | 2018-05-16 | 2019-11-21 | Tiax Llc | Système de refroidissement pour dispositifs de stockage d'énergie |
CN111934053A (zh) * | 2020-08-17 | 2020-11-13 | 山东科技大学 | 一种电动汽车用可拼接式电池模组及其工作方法 |
-
2021
- 2021-04-07 FR FR2103559A patent/FR3121815B1/fr active Active
-
2022
- 2022-04-07 CN CN202280026490.5A patent/CN117157805A/zh active Pending
- 2022-04-07 EP EP22721313.9A patent/EP4320672A1/fr active Pending
- 2022-04-07 WO PCT/EP2022/059192 patent/WO2022214572A1/fr active Application Filing
- 2022-04-07 US US18/554,016 patent/US20240194971A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019221723A1 (fr) * | 2018-05-16 | 2019-11-21 | Tiax Llc | Système de refroidissement pour dispositifs de stockage d'énergie |
CN111934053A (zh) * | 2020-08-17 | 2020-11-13 | 山东科技大学 | 一种电动汽车用可拼接式电池模组及其工作方法 |
Also Published As
Publication number | Publication date |
---|---|
FR3121815A1 (fr) | 2022-10-14 |
US20240194971A1 (en) | 2024-06-13 |
EP4320672A1 (fr) | 2024-02-14 |
FR3121815B1 (fr) | 2024-01-05 |
CN117157805A (zh) | 2023-12-01 |
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