Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
  • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
  • F28D1/035—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other with U-flow or serpentine-flow inside the conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
  • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
  • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
  • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
  • F28D1/0341—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
  • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/0246—Arrangements for connecting header boxes with flow lines
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6556—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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
  • F28D2021/0029—Heat sinks
• • 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 device for thermal regulation, in particular for cooling, in particular for an electrical component capable of giving off heat during its operation, in particular a system for cooling at least one battery or battery cells of a motor vehicle.
• Cooling devices for vehicle batteries are used.
• These cooling devices may include cooling plates through which a coolant flows. The cooling plates are installed, as much as possible without space, on the external side of the batteries in order to dissipate the heat or to heat the battery.
• Cooling devices are known in which the cooling plate is composed of two plate parts which are normally fixed directly to each other.
• the first plate part is preferably flat
• the second plate part is preferably a stamped or deformed sheet of metal which has meandering depressions. Said depressions are closed by the flat plate part which is fixed to the stamped plate part, so that refrigerant conduits are formed.
• Patent EP 2 828 922 B1 describes such a device.
• the invention aims to improve this type of device.
• the subject of the invention is therefore a device for thermal regulation, in particular for cooling, for an electrical component capable of generating heat during its operation, in particular for an electrical energy storage module, this system comprising:
• a lower plate assembled with the upper plate to form together a plurality of circulation channels for a heat transfer fluid, in particular a refrigerant fluid, in particular a fluid chosen from the following refrigerants R134a, R1234yf or R744,
• the channels being grouped by groups of channels, the channels of the same group being arranged to allow the circulation of refrigerant in the same direction, device in which the plates define collecting chambers arranged to supply fluid or evacuate fluid circulating in the channels, each collecting chamber being dedicated to only one of the groups of channels.
• the collecting chambers in particular arranged side by side, are separated from each other so that they communicate fluidly with one another only by the groups of channels.
• these manifolds are not common to two or more groups of channels.
• Each group of channels presents its dedicated collecting chamber.
• These collecting chambers are either an inlet collecting chamber for supplying the channels or an outlet collecting chamber for discharging fluid from the channels Thanks to the invention, it is possible to avoid a collecting chamber common to several groups of channels, a common chamber which would then have a large section which needs to be mechanically reinforced.
• the invention makes it possible to have collecting chambers of smaller dimensions, and therefore more mechanically robust.
• At least one of the plates in particular the lower plate, has a stamped area arranged to form one of the collecting chambers.
• each collecting chamber has a stamped zone on the lower plate, stamped zone which forms one face of this chamber.
• the collecting chambers have a diverging shape from a fluid inlet or outlet orifice towards the group of channels.
• the fluid inlet or outlet port is arranged to receive a tubing for a fluid connection.
• the upper and lower plates form a cylindrical passage defining the inlet or outlet opening.
• each passage is formed by protuberances on the plates, in particular produced by stamping.
• each collecting chamber is in fluid communication with a fluid tubing.
• the inlet and outlet orifices are located outside the heat exchange zone with the component to be cooled.
• the tubes are fixed, in particular brazed, in the passages defining the inlet or outlet orifice.
• the device comprises a plurality of pipes, in particular four pipes, in particular two fluid inlet pipes and two fluid outlet pipes, this plurality of pipes being connected to the plates on the same right edge of the plates.
• these pipes are fluidly connected to connection blocks outside the plates.
• each group of refrigerant channels opens into a small collecting chamber, with better mechanical strength, regardless of the circulation chosen for the exchanger in order to meet the criterion of temperature uniformity.
• the invention therefore makes it possible, if desired, to standardize the assembly of the two plates and to transfer the circuit stress to the pipes which are usually specific to each vehicle application.
• the channels are grouped by groups of channels, the channels of a group extending substantially parallel to one another with a predetermined spacing between neighboring channels called intra-group spacing, the intra-group spacing preferably being strictly less than the spacing between two groups of neighboring channels called inter-group spacing.
• the channels of the groups are all parallel to each other, at least locally, in particular over their entire length, namely all the channels formed by the plates are parallel to each other.
• the channels all have the same cross section.
• the channels are rectilinear.
• the cooling device can thus be produced more simply.
• the channels extend substantially over the entire length of the plates.
• the groups of channels are arranged side by side and have the same length.
• the intra-group spacing between the different channels of the same group of channels is constant.
• the intra-group spacing between the different channels of the same group of channels is variable.
• the intergroup spacing between the different groups of channels is constant.
• the intergroup spacing between the different groups of channels is variable.
• the cooling device comprises a bend chamber arranged to conduct the fluid leaving one of the channel groups towards one of the other channel groups.
• all the channels of the group lead to this bend chamber.
• the turning chamber is formed by the upper and lower plates.
• one of the upper and lower plates, in particular the lower plate comprises a stamped zone arranged to participate in the formation of the turning chamber.
• the stamped area is closed with the other of the plates to form the turning chamber.
• the turning chamber extends on one side of the plates.
• the device has three or four or more groups of channels.
• the device comprises two groups of channels.
• the number of groups of channels dedicated to the circulation of refrigerant in one direction is equal to the number of groups of channels dedicated to the circulation of fluid in the opposite direction.
• two groups of channels with the same direction of fluid circulation open out onto the turning chamber. These two groups of channels are neighboring.
• the bend chamber is fluidly connected to two other groups of channels which are arranged to receive the coolant which leaves the bend chamber. These two groups of channels are neighboring.
• the two groups of inlet channels on the turning chamber are arranged on a branch of the turning chamber and the two groups of outlet channels of the turning chamber bend are arranged on another branch of the bend chamber.
• these branches of the turning chamber are substantially rectilinear, and perpendicular to the channels.
• a bend in the bend chamber is arranged to connect the two arms of the bend chamber.
• the elbow can have an arc shape, for example with an opening of 180 degrees.
• the cooling device comprises an inlet zone for the coolant of the channels, this inlet zone being formed between the two plates.
• this fluid inlet zone is arranged to supply all the fluid circulation channels which open onto the turning chamber, namely the channels in which the fluid flows to the bend chamber.
• this entry area is common to at least two groups of channels.
• the cooling device comprises an outlet zone for refrigerant fluid from the channels, this outlet zone being formed between the two plates.
• this fluid outlet zone is arranged to conduct the fluid leaving all the fluid circulation channels which come from the bend chamber.
• this exit zone is common to at least two groups of channels.
• the entry and exit zones are adjacent to an entry or exit port, respectively.
• the inlet and outlet ports are connected to a tubing connector block.
• the upper plate is flat.
• the lower plate has rounded cross-sectional areas, in particular stamped areas, to form the channels with the upper plate.
• the turning chamber allows the creation of the circuit within the plates in order to meet the criterion of temperature uniformity within the device itself, and this, in an approach of cost optimization.
• the invention also allows, thanks to the plates, to have a reduced size in the direction of the height and to require only a reduced number of parts.
• the thermal regulation device in particular positioned under the element to be cooled, for example a battery pack, and maintained under it either by a mechanical system, screwing for example, or chemical, bonding for example.
• the upper plate is arranged in the region which is in direct contact with the element to be cooled, in order to maximize the contact surface with the element to be cooled.
• the channels are dimensioned so as to respond to a compromise between:
• This lower plate can be obtained by stamping.
• the subject of the invention is also a system comprising an electrical component capable of giving off heat during its operation, in particular for an electrical energy storage module, and a cooling device described above, arranged to cool the component. , this component or battery being in thermal contact with the upper plate of the cooling device.
• the invention also relates to a cooling system as described above, comprising battery cells.
• FIG. 1 to 2 illustrate, schematically and partially, according to different views, a device according to an example of the invention
• FIG. 3 and 4 illustrate, schematically and partially, according to different views, a device according to another example of the invention.
• FIGS. 1 and 2 show a system 1 comprising a set of battery cells 2 to be cooled, for example rows in two or more rows, and a cooling device 10 arranged to cool the cells 2, which are in thermal contact with an upper plate of the cooling device 10, as explained below.
• the thermal regulation device 10 comprises:
• a lower plate 12 assembled with the upper plate 11 to form together a plurality of circulation channels 13 for a heat transfer fluid, in particular a refrigerant fluid, in particular a fluid chosen from the following refrigerants R134a, R1234yf or R744.
• the channels 13 are grouped by groups 14 of channels, the channels of a group extending substantially parallel to one another with a predetermined spacing between neighboring channels called intra-group spacing 15, the intra-group spacing being strictly less than the spacing between two groups of neighboring channels called intergroup spacing 16.
• the channels 13 each have a cross section between 1 mm2 and 9 mm2.
• the channels 13 all have the same cross section and are straight.
• the channels 13 extend substantially over the entire length of the plates.
• the groups 14 of channels are arranged side by side and have the same length.
• the intra-group spacing 15 between the different channels 13 of the same group of channels is constant, in the example considered.
• the intergroup spacing 16 between the different groups of channels is constant, in the example considered.
• the cooling device comprises a bend chamber 20 arranged to conduct the fluid leaving one of the groups 14 of channels to one of the other groups of channels.
• the turning chamber 20 is formed by the upper plates 1 1 and lower 12, for example aluminum.
• the lower plate 12 has a deep-drawn zone 21 arranged to participate in the formation of the turning chamber 20.
• the stamped area 21 is closed with the other of the plates 11 which is flat to form the turning chamber 20.
• the turning chamber 20 extends on one side 23 of the plates.
• the device comprises four groups 14 of channels.
• the number of group of channels dedicated to the circulation of refrigerant in one direction is equal to the number of group of channels dedicated to the circulation of fluid in the opposite direction.
• Two groups 14 of channels with the same direction of fluid circulation open out onto the turning chamber. These two groups of channels are adjacent, on one half of the plates.
• the turning chamber 20 is fluidly connected to two other groups 14 of channels which are arranged to receive the coolant which leaves the turning chamber. These two groups of channels are neighboring on the other half of the plates.
• the two groups 14 of inlet channels on the bend chamber 20 are arranged on a branch 25 of the bend chamber and the two groups of outlet channels of the bend chamber are arranged on another branch 26 of the bend chamber turn.
• An elbow 28 is arranged to connect the two branches 25 and 26 of the turning chamber.
• the cooling device comprises an inlet zone 30 for the refrigerant of the channels, this inlet zone being formed between the two plates 11 and 12.
• This fluid inlet zone 30 is arranged to supply all of the fluid circulation channels 13 which open onto the bend chamber 20, namely the channels in which the fluid flows to the bend chamber.
• This entry area 30 is common to groups 14 of channels.
• the cooling device comprises an outlet zone 31 for refrigerant fluid from the channels, this outlet zone being formed between the two plates 11 and 12.
• This fluid outlet zone 31 is arranged to conduct the fluid leaving all the fluid circulation channels 13 which come from the turning chamber.
• This output zone 31 is common to the two groups of channels.
• the inlet 30 and 31 and outlet areas are adjacent to an inlet 32, respectively an outlet 33.
• the inlet 32 and outlet 33 ports are connected to a connector block 6 of pipes.
• the lower plate 2 comprises zones 37 of rounded cross section, in particular stamped zones, to form the channels 13 with the upper plate.
• the inlet 30 and outlet 31 areas include stamped areas of the bottom plate 12.
• the heat transfer fluid can be chosen from the refrigerating fluids of the designation R134a, R1234yf or R744.
• the heat transfer fluid used is alternately glycol water, without limitation of the glycol titer (0% to 100%).
• the battery cells include, for example, a plurality of lithium-ion (Li-ion) batteries for use in a hybrid vehicle.
• the plurality of battery cells are Li-ion batteries for use in a battery electric vehicle.
• the turning chamber 20 and / or the entry zone 30 and / or the exit zone 31 comprise, where appropriate, reinforcing elements to reinforce the mechanical strength in these zones which are potentially of larger section.
• These reinforcing elements are for example ribs.
• connection via the orifices 32 and 33 and the block 6 is modified in this embodiment.
• the plates 1 1 and 12 define collecting chambers 40 arranged to supply fluid or discharge fluid flowing in the channels 13, each collecting chamber 40 being dedicated to only one of the groups of channels.
• These collecting chambers 40 are either an inlet collecting chamber for supplying the channels or an outlet collecting chamber for discharging fluid from the channels 13.
• the lower plate ⁇ has stamped zones 41 arranged to each form one of the collecting chambers 40.
• each collecting chamber 40 has a stamped zone 41 on the lower plate, stamped zone which forms a face 42 of this chamber.
• the collecting chambers 40 have a shape which diverges from a fluid inlet or outlet port 44 towards the group of channels 13.
• Each fluid inlet or outlet port 44 is arranged to receive a pipe 45 for a fluid connection.
• the lower 12 and upper 11 plates form a passage 47 of preferably cylindrical shape defining the inlet or outlet 44.
• Each passage 47 is formed by protrusions 48 on the plates, in particular produced by stamping.
• Each collecting chamber 40 is in fluid communication with a fluid tubing 45.
• the inlet and outlet orifices 44 are located outside of the heat exchange zone with the component 2 to be cooled.
• the pipes 45 are fixed, in particular brazed, in the passages 47 defining the inlet or outlet.
• the device 1 comprises a plurality of pipes 45, in particular four pipes, in particular two fluid inlet pipes and two fluid outlet pipes, this plurality of pipes being connected to the plates on the same straight edge 49 of the plates.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General 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)
• Cooling Or The Like Of Electrical Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=65201399

Family Applications (1)

Country Status (4)

Families Citing this family (3)

Family Cites Families (3)

• 2018
  • 2018-09-13 FR FR1858202A patent/FR3086048B1/fr active Active
• 2019
  • 2019-09-04 EP EP19786372.3A patent/EP3850290A1/de active Pending
  • 2019-09-04 CN CN201990001135.6U patent/CN216432588U/zh active Active
  • 2019-09-04 WO PCT/FR2019/052046 patent/WO2020053506A1/fr unknown

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