EP3753066A1 - Systeme de refroidissement de cellules de batterie de vehicule auromobile - Google Patents
Systeme de refroidissement de cellules de batterie de vehicule auromobileInfo
- Publication number
- EP3753066A1 EP3753066A1 EP19718784.2A EP19718784A EP3753066A1 EP 3753066 A1 EP3753066 A1 EP 3753066A1 EP 19718784 A EP19718784 A EP 19718784A EP 3753066 A1 EP3753066 A1 EP 3753066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channels
- series
- plate
- channel
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- H01M10/61—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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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 cooling system of at least one battery or battery cells of a motor vehicle.
- the invention is particularly applicable for all electric or hybrid automobiles with a battery pack or battery cells.
- US9761919 discloses an energy storage system comprising multiple cells, each cell having anode and cathode terminals, and there is provided a heat pipe having a flat evaporation surface for cooling the cells.
- US9638475 discloses a heat exchanger in the form of a cooling element provided with an engagement device formed on or attached to an outer surface of the cooling plate to receive and / or engage a portion of corresponding commitment on a battery unit.
- the interconnection between the battery unit or cell and the heat exchanger creates a mechanical interlock between the two components which results in improved heat transfer properties between the two components.
- heat exchangers are known for heat exchangers (radiators, chillers, evaporators, etc.) with a U-shaped fluid circuit, for exchanging heat on each of its faces.
- the cells each see the same average temperature, but nevertheless have a tube that is hotter than the other, thus creating a thermal gradient that is all the more important as the cells are at the beginning. of the circuit.
- the cells For cold plates with U-shaped circulation, the cells never have a sufficient diameter to be able to overlap both the cold inlet channel and the hot outlet channel, so that a temperature difference between each cell becomes square.
- the present invention aims in particular to provide a better temperature homogeneity in the cooling of a set of battery cells.
- the subject of the invention is thus a battery cell cooling system, this system comprising:
- a support arranged to receive battery cells, this support being in thermal contact with the coolant
- the fluid circuit comprises a first series of fluid channels extending in a first plane and a second series of fluid channels extending in a second plane distinct from the first plane, at least one of the channels of fluid the first series connecting to at least one of the channels of the second series by a turning elbow which extends between said two planes so that these two channels form between them an angle less than 90 °, in particular less than 45 ° ° or lower 5 °, in particular these channels form between them an angle of 0 ° in which case these channels are parallel with opposite flow directions.
- the path of the heat transfer fluid makes it possible to guarantee homogeneous cooling on a mesh of battery cells.
- the invention makes it possible to have the same cell temperature whatever their position on the exchanger.
- all the channels of the first series are parallel to each other.
- all the channels of the second series are parallel to each other.
- all the channels of the first and second series are all parallel to each other.
- the turning bends are all on one side of the cooling system.
- the channels are rectilinear over most of their length, especially over substantially their entire length.
- the system comprises a channel plate at least partially defining the channels of at least one of the first and second series, in particular the plate at least partially defines the channels of the two series.
- the channel plate has grooves at least partially defining the channels.
- the channel plate is made in one piece, in particular aluminum, in particular by stamping.
- the channel plate has on the upper face a series of grooves to form the channels of the first series and on the underside a series of furrows to form the channels of the second series.
- all channels are rectilinear, ie the channels do not form coils.
- the channels extend over a major part of the plate, in particular substantially over the entire length of the plate.
- the plate comprises alternating embossings so as to form alternating grooves to alternately define the channels on each of the upper and lower faces of the plate.
- the plate is arranged to define a heat transfer channel supply zone.
- the plate is arranged to define a fluid evacuation zone of the channels.
- the supply and discharge zones are on the same side, in particular end, of the channel plate, in particular in the two planes respectively.
- the supply and discharge zones extend transversely with respect to the channels.
- the supply and discharge areas are respectively connected to an input and output connectors, these connectors, in particular each formed by a tubing, both connectors extending either on the upper face, or on the lower face, namely on the same side of the plate.
- one of the connectors extends on the upper face and the other on the underside of the channel plate.
- the fluid inlet and outlet connectors are substantially in the middle of the channel plate.
- the plate has a thickness of between 0.5 mm and 1 mm.
- the channels have a cross section of between 15 mm 2 and 20 mm 2.
- the channels of the first and second series press the same cross section.
- the channels are spaced apart from one another regularly.
- the battery cells have a larger section than the space between a channel of the first series and a channel of the second series, which channels are immediately adjacent.
- At least some of the battery cell bases, including all bases, are cooled by both a channel of the first series and a channel of the second series.
- the support for receiving the battery cells is a plate assembled with the channel plate, in particular by soldering.
- the support plates and channels have substantially the same dimensions and shapes, in particular have straight edges, including being inscribed in a rectangle.
- the support plate closes channels of one of the series of channels.
- the input or output connection passes at least partially through the support plate, in particular this plate has an orifice for the passage of a tubing.
- the support plate is made of aluminum. According to one aspect of the invention, this support plate comprises cells arranged to each receive a battery cell.
- these cells are arranged in rows parallel to the channels.
- these cells receive the base of the cells.
- each battery cell is cylindrical.
- the cells are at least 200, in particular at least 300, in particular 400.
- the system comprises a bottom plate arranged to be assembled with the channel plate.
- this bottom plate is arranged to close the channels of one of the series of channels.
- the input or output connection passes at least partially through the bottom plate, in particular this plate has an orifice for the passage of a pipe.
- the channel plate is sandwiched between the cell support plate and the bottom plate, these plates being in particular brazed together.
- the turning elbow is formed by through apertures in the channel plate which allow the fluid to pass from one side to the other of the channel plate.
- the support and bottom plates are completely flat without housing or cells for the cylindrical cells.
- the channels have different widths, in order to adapt to the arrangement of cells which for example have a non-constant pitch.
- the components are made of plastics and are assembled by bonding, thermal welding, ultrasonic welding or any other means of assembly.
- only the channel plate is aluminum and the other components are plastic and in particular are assembled together by gluing.
- the invention allows a junction between channels of the first and second series being by means of a reversal support plate end, said reversal being in the direction of the thickness of the channel plate.
- the channels allow the heat exchange on the one hand with half of the base of each cylindrical lower face cell, the fluid being in direct contact with the lower plate, and also with the half of the base of each upper face cylindrical cell, the fluid being in indirect contact with the upper support plate via the channel bottom or furrow bottom.
- FIG. 1 to 7 illustrate, schematically and partially, according to different views, a system according to an example of the invention
- FIGS. 1 to 7 show a cooling system 1 for battery cells, this system 1 comprising:
- a support 3 arranged to receive battery cells 4, this support 3 being in thermal contact with the coolant,
- the fluid circuit 2 comprises a first series of fluid channels 10 extending in a first plane P1 and a second series of fluid channels 20 extending in a second plane P2 distinct from the first plane.
- the channels 1 1 of the first series 10 are connected to the channels 21 of the second series 20 by turning elbows 30 which extend between said two planes P1 and P2 so that these channels form an angle of 0 ° between them, namely, these channels 1 1 and 21 are parallel to each other and with opposite flow directions.
- the heat transfer fluid used is preferably glycol water, without limitation of the glycol titer (0% to 100%).
- the coolant can be chosen from fluids with the designation R134a, R1234yf or R744.
- the battery cells 2 comprise 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 turning bends 30 are all on one side 7 of the cooling system 1, as illustrated in FIG. 3.
- the channels 1 1 and 21 are rectilinear over substantially their entire length.
- the system 1 comprises a channel plate 8 defining the channels 1 1 and 21 of the first and second series. 10 and 20.
- the channel plate 8 has grooves 9 defining the channels 11 and 21, as can be seen in FIGS. 3 and 4.
- the channel plate 8 is made in one piece, in particular aluminum, in particular by stamping.
- the channel plate 8 comprises on the upper face 15 a series of grooves 9 to form the channels 1 1 of the first series and on the lower face 25 a series of grooves 9 to form the channels of the second series 21.
- All channels 1 1 and 21 are rectilinear, ie the channels do not form coils.
- the channels 1 1 and 21 extend over a major part of the plate 8, substantially over the entire length of the plate 8.
- the plate 8 is arranged to define a supply zone 31 of the channels 1 1 heat transfer fluid, as shown in Figure 2.
- the plate 8 is arranged to define a channel fluid evacuation zone 32, as can be seen in FIG. 5.
- the feed 31 and discharge 32 are on the same right side of the channel plate.
- the feeding and evacuation zones 31 and 32 of elongate shape, in particular of rectangular shape, extend transversely with respect to the channels 11 and 21.
- the supply and discharge areas 31 and 32, formed on the plate 8, are respectively connected to an input connector 37 and output (not visible), these connectors, in particular each formed by a tubing, both connectors extending either on the upper face or on the lower face, namely on the same side of the plate.
- the input connectors 37 and fluid outlet connectors 38 are substantially in the middle of the channel plate 8.
- the channels of the first and second series have the same cross section and are spaced apart from each other on a regular basis.
- the battery cells have a larger section than the space between a channel of the first series and a channel of the second series, which channels are immediately adjacent.
- the battery cell bases 4, in particular all the bases 60, are cooled by both a channel of the first series and a channel of the second series, as illustrated in FIG.
- the support 40 for receiving the battery cells is a plate assembled with the channel plate 8, in particular solder.
- the support plates 40 and channel plate 8 have substantially the same dimensions and shapes, especially have straight edges, including being inscribed in a rectangle.
- the support plate 40 closes channels 1 1 and 21.
- the input or output connection goes through this support plate 40, in particular this plate has an orifice 41 for the passage of a pipe 37, as can be seen in FIG. 9.
- the support plate 40 is made of aluminum and comprises cells 45 arranged to receive each a battery cell 4.
- These cells 45 are arranged in rows parallel to the channels.
- Each battery cell is cylindrical.
- the system comprises a bottom plate 50 arranged to be assembled with the channel plate 8.
- This bottom plate 50 is arranged to close the channels of one of the series of channels.
- the turning elbows are formed by through apertures 55 in the channel plate 8 which allow the fluid to pass from one face to the other of the channel plate 8 and turn around in the other plane.
- Channels 1 and 21 are alternately arranged.
- the plate 8 comprises alternating embossings so as to form alternating grooves 9 to alternately define the channels 1 1 and 21 on each of the upper and lower faces of the plate 8.
- the channels 1 1 of the upper face open at one end on the through openings 55, each opening 55 distributing the fluid in the channel 1 1 which arrives at this opening 55 to two channels 21 of the other side of the plate.
- each channel 21 of the lower face communicates with two channels of the upper face.
- the invention makes it possible to guarantee homogeneous cooling on a mesh of cylindrical cells for the field of electric motor vehicles.
- the bottom plate 50 arranged to be in contact with a set of additional battery cells.
- a first group of battery cells is in contact with the upper face and a second group of cells is in contact with the other side.
- the plates are interposed between two sets of cells.
- the bottom plate 50 may be similar to the support plate
- each cell sees, in thermal terms, the "cold" channel and the "hot” channel of the coolant, so that the average temperature of the fluid seen by each cell is the same.
- the heat exchange may, if necessary, be on each side of the plate, insofar as there is need for cooling on both sides of the exchanger.
- the size of the channels is optimized.
- the cooling channels provide heat exchange on the one hand with half of the base 60 of each upper face cylindrical cell, the fluid being in direct contact with the upper support plate 40, but also with half of the base 60 of each lower-face cylindrical cell, the fluid being in indirect contact with the lower plate via the channel bottom.
- the channels 1 1 are alternately arranged with the channels 21, which ensure the return of the fluid against the current.
- the channels 1 1 and 21 have the same width in this embodiment, said width being a function of the pitch between each cell.
- the channels 21 allow heat exchange on the one hand with half of the base 60 of each cylindrical cell bottom face, the fluid being in direct contact with the lower plate 50, but also with half of the base of each upper-face cylindrical cell, the fluid being in indirect contact with the upper support plate 8 via the channel bottom or furrow bottom 9.
- the plates 40 and 50 close the fluid circuit.
- the channels 1 1 and 21 each extend between the supply and discharge areas. In particular they are separated from each other outside the areas of supply and discharge. Especially these channels 1 1 and 21 do not intersect outside the areas of supply and discharge.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1852447A FR3078199B1 (fr) | 2018-03-21 | 2018-03-21 | Systeme de refroidissement de cellules de batterie de vehicule automobile |
| PCT/FR2019/050647 WO2019180385A1 (fr) | 2018-03-21 | 2019-03-21 | Systeme de refroidissement de cellules de batterie de vehicule auromobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3753066A1 true EP3753066A1 (fr) | 2020-12-23 |
Family
ID=62684874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19718784.2A Withdrawn EP3753066A1 (fr) | 2018-03-21 | 2019-03-21 | Systeme de refroidissement de cellules de batterie de vehicule auromobile |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3753066A1 (fr) |
| CN (1) | CN111919332A (fr) |
| FR (1) | FR3078199B1 (fr) |
| WO (1) | WO2019180385A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11629917B2 (en) | 2019-07-23 | 2023-04-18 | Dana Canada Corporation | Three-layer heat exchanger with internal manifold for battery thermal management |
| EP4087016A1 (fr) * | 2021-05-04 | 2022-11-09 | Rimac Automobiles Ltd. | Ensemble plaque froide |
| US11784364B2 (en) * | 2021-06-16 | 2023-10-10 | Lg Energy Solution, Ltd. | Battery system having a battery module |
| SE547605C2 (en) * | 2022-12-07 | 2025-10-28 | Northvolt Ab | A battery assembly |
| FR3152650B1 (fr) * | 2023-09-06 | 2025-10-03 | Novares France | Echangeur thermique pour cellules de batteries électriques |
| EP4648177A1 (fr) * | 2024-05-09 | 2025-11-12 | Eve Energy Co., Ltd. | Bloc-batterie |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008034874B4 (de) * | 2008-07-26 | 2011-06-30 | Daimler AG, 70327 | Batterie und Verwendung einer Batterie |
| CA3053807A1 (fr) | 2010-10-29 | 2012-05-03 | Dana Canada Corporation | Echangeur de chaleur et structure d'unite de batterie pour refroidir des batteries thermiquement conductrices |
| GB2502977B (en) * | 2012-06-11 | 2015-07-15 | Jaguar Land Rover Ltd | A vehicle battery pack, a system for cooling a battery pack and a cooling plate for use in the system |
| FR3011131B1 (fr) * | 2013-09-24 | 2019-11-29 | Valeo Systemes Thermiques | Dispositif de gestion thermique de batterie et procede de fabrication associe |
| KR102233774B1 (ko) * | 2014-02-17 | 2021-03-30 | 삼성에스디아이 주식회사 | 배터리 모듈 |
| US9761919B2 (en) | 2014-02-25 | 2017-09-12 | Tesla, Inc. | Energy storage system with heat pipe thermal management |
| CA2982475A1 (fr) * | 2015-04-21 | 2016-10-27 | Dana Canada Corporation | Echangeur de chaleur a contre-courant pour applications de gestion thermique de batterie |
| US9969295B2 (en) * | 2016-09-07 | 2018-05-15 | Thunder Power New Energy Vehicle Development Company Limited | Cooling system directly in housing |
-
2018
- 2018-03-21 FR FR1852447A patent/FR3078199B1/fr active Active
-
2019
- 2019-03-21 CN CN201980019505.3A patent/CN111919332A/zh active Pending
- 2019-03-21 WO PCT/FR2019/050647 patent/WO2019180385A1/fr not_active Ceased
- 2019-03-21 EP EP19718784.2A patent/EP3753066A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN111919332A (zh) | 2020-11-10 |
| FR3078199A1 (fr) | 2019-08-23 |
| FR3078199B1 (fr) | 2024-03-15 |
| WO2019180385A1 (fr) | 2019-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019180385A1 (fr) | Systeme de refroidissement de cellules de batterie de vehicule auromobile | |
| EP4062120B1 (fr) | Système de gestion thermique pour composant électrique | |
| EP3931507B1 (fr) | Dispositif de regulation thermique, notamment de refroidissement pour vehicule automobile | |
| FR3100608A1 (fr) | Système de gestion thermique pour composant électrique | |
| WO2019197759A1 (fr) | Système de refroidissement d'au moins une batterie de véhicule automobile | |
| EP2783180B1 (fr) | Boîte collectrice, notamment pour refroidisseur de batterie, et échangeur de chaleur comprenant au moins une telle boîte | |
| WO2020178536A1 (fr) | Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile | |
| EP3956624B1 (fr) | Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile | |
| WO2020053506A1 (fr) | Dispositif de regulation thermique, notamment de refroidissement | |
| FR3016479A1 (fr) | Plaque d'echange thermique pour gestion thermique de batterie et procede de fabrication associe | |
| WO2022023013A1 (fr) | Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile | |
| FR3095036A1 (fr) | Echangeur de chaleur pour composant électrique et ensemble dudit échangeur et dudit composant | |
| EP3891838B1 (fr) | Échangeur de chaleur pour composant électrique et ensemble dudit échangeur et dudit composant | |
| WO2022074144A1 (fr) | Dispositif de régulation thermique, notamment de refroidissement pour véhicule automobile | |
| WO2021001614A1 (fr) | Plaque constitutive d'un échangeur de chaleur et échangeur de chaleur comprenant au moins une telle plaque | |
| EP3753065A1 (fr) | Système de refroidissement de cellules de batterie de véhicule automobile | |
| FR3085543A1 (fr) | Dispositif de regulation thermique | |
| EP3861587B1 (fr) | Système de refroidissement de cellules de batterie de véhicule automobile | |
| EP2936038A1 (fr) | Tube plat pour échangeur de chaleur d'air de suralimentation et échangeur de chaleur d'air de suralimentation correspondant | |
| FR3034568A1 (fr) | Module de batterie, notamment pour vehicule automobile, et echangeur thermique pour module de batterie correspondant | |
| FR3073609A1 (fr) | Canal pour echangeur thermique d'un vehicule automobile | |
| EP4441455A1 (fr) | Elements de perturbation avances pour l'amelioration de la performance des tubes | |
| WO2021048499A1 (fr) | Dispositif de gestion thermique pour composant électrique et système comprenant un tel dispositif | |
| EP4673989A1 (fr) | Dispositif de régulation thermique avec collecteur central | |
| FR3125583A1 (fr) | Eléments de perturbation avancés pour l’amélioration de la performance des tubes de radiateurs basse température |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20200915 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230528 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20240912 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20250114 |