WO2020207718A1 - Arrangement de refroidissement pour refroidir des modules de batterie, batterie à haute tension et véhicule automobile - Google Patents

Arrangement de refroidissement pour refroidir des modules de batterie, batterie à haute tension et véhicule automobile Download PDF

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Publication number
WO2020207718A1
WO2020207718A1 PCT/EP2020/057267 EP2020057267W WO2020207718A1 WO 2020207718 A1 WO2020207718 A1 WO 2020207718A1 EP 2020057267 W EP2020057267 W EP 2020057267W WO 2020207718 A1 WO2020207718 A1 WO 2020207718A1
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WO
WIPO (PCT)
Prior art keywords
battery module
cooling
battery
heat
heat pipe
Prior art date
Application number
PCT/EP2020/057267
Other languages
German (de)
English (en)
Inventor
Patrick REICHEL
Original Assignee
Audi Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi Ag filed Critical Audi Ag
Priority to CN202080018876.2A priority Critical patent/CN113544897A/zh
Publication of WO2020207718A1 publication Critical patent/WO2020207718A1/fr

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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • Cooling arrangement for cooling battery modules, high-voltage batteries and
  • the invention relates to a cooling arrangement for cooling Batteriemo modules, the cooling arrangement having at least one cooling device.
  • the invention also includes a high-voltage battery with such a cooling arrangement, as well as a motor vehicle with a high-voltage battery.
  • Battery modules are usually cooled by cooling devices.
  • a high-voltage battery typically includes several battery modules, such battery modules in turn being able to include several individual battery cells, for example prismatic individual cells that are arranged in the form of a cell pack or cell stack. Excessive heating of these individual battery cells has a negative effect on their service life, as it accelerates the aging of these battery cells. Accordingly, it is desirable to always keep the temperature of such battery cells as far as possible in a desired temperature range which has the least negative impact on the service life of the battery cells and is therefore optimal for the operation of these battery cells.
  • the cooling devices usually used for cooling battery modules are typically arranged on the underside of such battery modules, that is to say on one side of the battery modules which is arranged opposite the poles of the individual battery cells. In this area, the easiest way to provide cooling over a large area, for example by means of cooling plates through which a coolant can flow. len. In general, however, such a cooling device can also be arranged on other sides of a battery module, and also between the individual battery cells of the battery module. In certain situations, however, it can happen that the cooling capacity that can be provided by such a cooling device is not sufficient to keep the battery cells in the desired temperature range. This can occur, for example, when there is a high power requirement while driving, or during a charging process to charge the high-voltage battery.
  • the object of the present invention is therefore to provide a cooling arrangement, a high-voltage battery and a motor vehicle which enable the most efficient possible cooling of battery modules.
  • a cooling arrangement according to the invention for cooling battery modules has at least one cooling device. Furthermore, the cooling arrangement has at least part of a battery module connection device for electrically conductive connection of a first battery module to a second battery module, the cooling device having at least one heat pipe which comprises a first heat pipe part which is arranged on at least one part of the battery module connection device and a second heat pipe portion for arrangement on a heat sink.
  • the invention is based on the knowledge that battery module connection devices, by means of which the battery terminals of the battery modules are connected and contacted within a high-voltage battery, represent temperature hotspots within such a high-voltage battery.
  • Such heat pipes which are also referred to as heat pipes and can be designed, for example, as heat pipes or two-phase thermosyphons, are particularly flexible in terms of their geometric design and, depending on the design, also bendable, so that such heat pipes can be used particularly flexibly, in particular also for cooling non-large-area, but rather more filigree components, such as the battery module connection device.
  • a heat pipe for example in contrast to a pure metal rail or the like, enables significantly more efficient cooling.
  • a heat pipe is a heat exchanger that allows a high heat flow density by using the heat of evaporation of a medium. In this way, large amounts of heat can be transported over a small cross-sectional area.
  • the thermal resistance of a heat pipe is significantly smaller than that of metals at working temperature. With the same transmission capacity, much lighter construction methods are therefore possible than with conventional heat exchangers under the same conditions of use.
  • What can be used as the working medium for example, water or ammonia.
  • This working medium is enclosed in a vessel which is preferably metallic, that is to say made of a metal and / or an alloy, such as copper. At the heat input point of the heat input of the heat pipe, the temperature increases until the working medium evaporates, the temperature no longer increasing until all of the working medium has evaporated.
  • the evaporated working medium migrates to a heat release point of the heat pipe, which can be coupled to a heat sink, whereby the evaporated working medium cools down again at this heat release point, liquefies and flows back to the heat input point of the heat pipe.
  • the above-mentioned first heat pipe part which is arranged on at least a part of the battery module connection device, accordingly comprises the heat input point, while the second heat pipe part for arrangement on a heat sink correspondingly comprises the heat release point.
  • a thermal path for dissipating heat from the battery module connecting device or at least a part of this battery module connecting device can thus advantageously be provided via the at least one heat pipe to the heat sink.
  • At least one The heat pipe can be designed as a heat pipe, but also, for example, as a so-called two-phase thermosiphon.
  • a heat pipe differs in its functional principle from such a two-phase thermosiphon only in the transport of the working medium or the return transport of the gaseous working medium. In the case of a two-phase thermosiphon, this occurs due to gravitation, so that in this case the second heat pipe part is preferably located higher than the first heat pipe part with respect to a direction of gravity.
  • the design of the at least one heat pipe as a heat pipe is preferred, however, since such a heat pipe can be arranged independently of the direction of gravity without impairing the functionality of the heat pipe.
  • heat pipes use the capillary effect or the wick principle to guide the condensed fluid back to the evaporator, ie to the heat input point.
  • the heat pipe By designing the heat pipe as at least one heat pipe, a positionally independent use option is provided, which brings significantly more flexibility with regard to the possible arrangements. In both cases, however, a particularly efficient heat dissipation can be provided from the battery module connection device or at least one part thereof to the heat sink.
  • This advantageous cooling option in the area of the battery module connecting device allows cooling of battery modules and battery cells also in the area of their poles. Temperature gradients within the battery cells can thus be avoided or at least reduced much more efficiently. The invention thus enables very efficient cooling of battery modules.
  • the described cooling arrangement can also be easily combined with conventional cooling arrangements, for example cooling devices, which are arranged below the battery modules or on other sides of the battery modules or between the individual cells of the battery modules, in order to achieve overall cooling efficiency during cooling of battery modules even further.
  • cooling devices for example cooling devices
  • a battery module in connection with the invention can be designed as described at the outset and, for example, comprise a plurality of individual battery cells, for example lithium-ion cells.
  • these individual battery cells can be designed as prismatic battery cells, for example.
  • the cooling arrangement according to the invention and its configurations can also be used for cooling battery modules with round cells and / or pouch cells.
  • the battery module connection device has a first connection unit for electrically conductive connection to a pole connection unit of the first battery module, a second connection unit for electrically conductive connection to a pole connection unit of the second battery module and a connection element which connects the first and electrically conductively connects the second connection unit to one another
  • the part of the battery module connection device on which the first heat pipe part of the at least one heat pipe is arranged represents the first connection unit and / or the second connection unit and / or the connection element.
  • a pole connection unit of the first or second battery module can either be a connection for a plus pole or a connection for a minus pole of the relevant battery module.
  • the two positive poles of the two battery modules can accordingly be connected to one another via such a battery module connection device, and accordingly also the two negative poles of the two battery modules via such Battery module connection device be connected.
  • a minus pole of the first battery module can then be connected to a plus pole of the second battery module via such a battery module connection device, while the plus pole of the first battery module can then be connected to a minus pole of a third battery module and of the The negative pole of the second battery module with a positive pole of a fourth battery module, and so on, again in each case via such a battery module connection device.
  • Any combination of series and parallel connections of battery modes can also be implemented via such battery module connection devices.
  • the at least one heat pipe or its first heat pipe part can now advantageously in principle be connected to each part of such a battery module connection device, namely its first connection unit, its second connection unit or its connection element, or be arranged in direct contact with these parts, as well be connected to several of these parts at the same time.
  • the cooling of the battery module connection device can be designed to be particularly efficient and flexible.
  • the connec tion element is flexible.
  • the connecting element can, for example, comprise a type of conductor strip that can be bent, for example. This is particularly advantageous when making contact with the pole connection unit and the respective battery modules, since spacing tolerances, position tolerances and other additional distance tolerances between the pole connection units of the battery modules to be connected can be compensated for by the flexibility of the connecting element.
  • the cooling device in particular the at least one heat pipe, preferably each heat pipe comprised by the cooling device, with a different part of the battery module connecting device than the Connec tion element is connected. This then enables a simpler connection of the at least one heat pipe to the part of the battery module connecting device when this part is rigid, and at the same time does not restrict the flexibility of the battery module connection device.
  • the battery module connection device has at least one rigid part and at least one flexible part, the cooling device only on at least one rigid part of the battery module connection device is arranged.
  • the heat pipe encompassed by the cooling device is arranged in direct contact with the at least one rigid part or in direct contact with it, but not on any flexible part of the battery module connecting device.
  • the cooling device comprises, for example, several such heat pipes, then these are all preferably arranged on at least one rigid part or optionally also on various rigid parts of the battery module connecting device, directly contacting or touching them, and not on the flexible part, which, as described, passes through the connecting element can be provided.
  • flexible is preferably to be understood as bendable or reversibly geometrically deformable. This flexibility can be provided in a simple manner by a correspondingly thin design of the connecting element or an at least flat design, such as in the form of the conduction band described.
  • the conductive part of the connecting element is preferably made of a metal or an alloy, for example copper.
  • the cooling device is only arranged on at least one rigid part of the battery module connecting device, efficient cooling is enabled and yet, as already described, the flexibility of the battery module connecting device is not restricted.
  • the battery module connecting device can generally consist of several individual parts which do not necessarily have to be firmly connected to one another, that is to say can be connected to one another in a non-destructive or damage-free manner. Accordingly, the Battery module connection device also have reversible coupling face or electrically conductively connectable units, as will now be described in more detail below.
  • first and / or the second connection unit has a first coupling unit which can be coupled to the pole connection unit in an electrically conductive manner, a second coupling unit which can be connected non-destructively and reversibly to the first coupling unit in an electrically conductive manner, for example to this can be screwed, and a rigid connecting rail which connects the second coupling unit to the connecting element in an electrically conductive manner.
  • the first heat pipe part of the at least one heat pipe is arranged on the first coupling unit and / or the second coupling unit and / or the rigid connecting rail.
  • the first heat pipe part is again arranged on a rigid element of the battery module connection device, and not on the connection element, which is preferably designed to be flexible.
  • the battery module connecting device has electrical insulation. This is particularly advantageous because, precisely in the case of battery modules for use in a high-voltage battery, voltages can be made available at the pole connection units which are in the high-voltage range.
  • the electrical insulation of the battery module connection device is then preferably designed in such a way that contact protection is provided, that is, no current or voltage-carrying parts of the battery module connection device or the pole connection units of the battery pole can be touched, for example with a finger are.
  • the first heat pipe part of the at least one heat pipe is connected to the battery module connection device in an electrically conductive manner.
  • the first Heat pipe part does not or at least not only on the outside of the electrical insulation of the battery module connection device, but makes direct contact with electrically conductive parts of the battery module connection device, to which a voltage is applied in their intended arrangement and through which current is carried during operation of the battery modules.
  • the metallic vessel of the at least one heat pipe can thus be in direct contact with a metallic material of the battery module connection device, which enables particularly efficient heat dissipation, since metals typically have a significantly higher thermal conductivity than typically electrically insulating materials such as plastics .
  • the heat pipe can also be coated with electrical insulation in its course up to the heat sink.
  • the cooling arrangement comprises the heat sink, the second heat pipe part being connected to the heat sink in an electrically insulated manner.
  • the heat sink itself can in turn be provided at least by a metallic element, such as a metal plate, which can optionally also be flowed through by a cooling medium or coolant or is flowed through in cooling mode, for which purpose cooling channels can be provided in this metal plate, for example .
  • the heat sink can, however, also be designed in any other way.
  • the electrical insulation between the second heat pipe part and such a metallic plate or heat sink can advantageously implement a potential separation.
  • the heat sink can for example also be provided by a cooling device which is arranged on an underside of the first and / or second battery module, an underside of the first and / or second battery module being defined as that side of the battery module in question which is the side of the battery module , on which the poles of the individual battery cells of the battery module in question are arranged, ge opposite.
  • This cooling device is preferably designed as a cooling plate through which a cooling medium can flow.
  • This cooling device, which is arranged on the underside of the battery modules can thus also function as a heat sink for connecting the heat pipes coupled with the battery module connection devices, so that this allows a particularly efficient and compact design, since there is no separate additional cooling device to provide the heat sink mentioned must be provided.
  • a cooling device that functions as the heat sink can also be arranged additionally or alternatively on other sides of the battery module or between the individual cells of the battery module.
  • the heat sink described can also be provided as a separately designed cooling device, for example a cooling plate.
  • the cooling arrangement in turn comprises the heat sink, this heat sink being designed as a heat exchanger which has a first heat exchanger unit and a second heat exchanger unit electrically insulated from the first heat exchanger unit, the first heat exchanger unit having an electrical connection with the second heat exchanger unit insulating cooling medium can be thermally coupled or is coupled during operation, the second heat pipe part being electrically conductive only to the first heat exchanger Unit is connected, so that a thermal path for heat dissipation from the battery module connection device via the at least one heat pipe, via the first heat exchanger unit and via the electrically insulating cooling medium to the second heat exchanger unit can be provided or is provided.
  • the coupling of the at least one heat pipe to a heat pipe part designed in this way advantageously allows the metallic heat pipe or the metallic vessel of this heat pipe to be connected again directly to a metallic part of the first heat exchanger unit. Since this first heat exchanger unit is electrically insulated from the second heat exchanger unit, and an electrically insulating cooling medium is also used for heat transport, in this way, in turn, a potential separation between the battery module connection device and the second heat exchanger unit and thus to the outside can advantageously be provided.
  • This allows particularly efficient cooling, since the direct connection option between the heat pipe and the battery module connection device as well as the heat pipe and the first heat exchanger unit, which can also have a metallic material, enables particularly efficient heat transfer and thus particularly efficient heat dissipation .
  • An electrically insulating gas and / or an electrically insulating liquid can, for example, be used as the electrically insulating cooling medium.
  • the invention also relates to a high-voltage battery for a motor vehicle, the high-voltage battery having a cooling arrangement according to the invention or one of its configurations.
  • the advantages described for the cooling arrangement according to the invention and its configurations apply equally to the high-voltage battery according to the invention.
  • the high-voltage battery can furthermore comprise several battery modules, in particular also including the first and second battery modules described above, which are or can be connected to one another in an electrically conductive manner via the battery module connection device.
  • the high-voltage battery can handle numerous such battery types modules as well as several of the battery module connection devices described and accordingly several cooling arrangements include.
  • the high-voltage battery can also have the heat sink described. Heat pipes of different cooling arrangements, which are coupled to different battery module connection devices, can also be connected to the same heat sink.
  • first and / or second battery module described in connection with the cooling arrangement according to the invention and its configurations should apply in the same way to the battery modules of the high-voltage battery and thus enable corresponding developments of the high-voltage battery according to the invention.
  • the invention also relates to a motor vehicle with a high-voltage battery according to the invention or one of its configurations.
  • the advantages mentioned in connection with the cooling arrangement according to the invention and its configurations also apply here in the same way to the motor vehicle according to the invention.
  • the motor vehicle according to the invention is preferably designed as a motor vehicle, in particular special as a passenger car or truck, or as a passenger bus or motorcycle.
  • the invention also includes the combinations of the features of the described embodiments enclosed.
  • FIG. 1 shows a schematic illustration of a high-voltage battery with two exemplary battery modules and a cooling arrangement for cooling the battery modules according to an exemplary embodiment of the invention
  • Fig. 2 is a schematic representation of a cooling arrangement for
  • Cooling of battery modules according to a further exemplary embodiment of the invention.
  • FIG. 1 shows a schematic representation of a floch-volt battery 10, which has a plurality of battery modules 12, of which two battery modules 12 are shown here only as an example. Furthermore, the floch-volt battery 10 has a cooling arrangement 14 according to an embodiment of the invention.
  • the two battery modules 12 are connected to one another in an electrically conductive manner via a battery module connecting device 16.
  • the battery module connecting device 16 couples a positive pole 12a of a first battery module 12 to a negative pole 12b of the second battery module 12. This means that these two battery modules 12 can be connected in series, for example.
  • battery modules 12 can also be connected in an electrically conductive manner via such a battery module connecting device 16 to provide a parallel connection of battery modules 12.
  • the battery modules 12 of a floch-volt battery 10, such as the one shown here can be connected in series and / or in parallel with one another for various reasons connected to each other, for example to increase capacities or voltages.
  • the connections heat up very strongly when power is drawn or supplied, since they are loaded by the flow of current generated by these connections.
  • a current flow 18 is illustrated by arrows, which from the first battery 12, in particular via its positive terminal 12a via the battery module connection device 16 to the negative terminal 12b of the second battery module 12 and flows through it to its positive pole 12a.
  • a cooling device is integrated into the battery module connection device 16 described in the form of at least one heat pipe 20.
  • the cooling device of the cooling arrangement 14 comprises four such heat pipes 20, which are preferably designed as heat pipes.
  • the battery module connection device 16 can furthermore have connection elements which, for example, can be fastened or connected to a battery or a battery module 12 with connection parts, for example screwed, clamped, welded or plugged in. These respective connection parts 24 can be connected via a conductor, which is indicated by 22 in FIG. 1 and is generally referred to below as connecting element 22, be electrically conductively connected.
  • the cooling arrangement 14 accordingly has at least part of the battery module connection device 16 and at least one heat pipe 20.
  • a heat pipe 20 can in turn each have a first heat pipe part 20a which is arranged in direct contact on at least part of the battery module connection device 16 , and a second heat pipe part 20b for arrangement on a heat sink 25. This provides a heat conduction path for heat dissipation from the battery module connection device 16 via the first heat pipe part 20a to the second heat pipe part 20b and thus to the heat sink 25.
  • This heat sink 25 can, for example, by a cooling plate 26 through which a cooling medium can flow, which is attached to an underside 12c of the battery modules 12 for cooling the underside of the battery modules 12, or also to one or more other sides of the battery modules 12 or between individual cells of the respective battery modules 12 can be arranged.
  • This heat sink 25 can, however, also be provided by a separate cooling device 28, which can be present alone or in addition to such a cooling plate 26.
  • These heat pipes 20 have, for example, a metallic housing or a metallic vessel, such as a copper tube or the like, in which a working medium is located.
  • This metallic housing of the heat pipes 20 is preferably in direct contact with the conductive parts of the battery module connecting device 16, so that a particularly efficient heat transfer can be provided.
  • these heat pipes 20 with their respective second heat pipe parts 20b are connected to the via electrical insulation 30
  • Heat sink 25, as illustrated in this example only for the cooling plate 26, can be connected. So that the heat sink 25, in this example the cooling plate 26, remains potential-free.
  • the heat pipes 20 can also be connected to a heat exchanger as a heat sink 25, such as the cooling device 28 shown in FIG. 1 as a heat sink 25, such a heat exchanger itself being able to provide such a potential separation by being connected to the Example has two mutually electrically isolated heat exchanger units, which are thermally coupled to one another via an electrically insulating heat conducting medium.
  • FIG. 2 shows a schematic representation of a cooling arrangement 14 according to a further exemplary embodiment of the invention or in a somewhat more detailed representation.
  • the cooling arrangement 14 can be designed as already described for FIG. 1.
  • This cooling arrangement 14 in turn comprises the battery module connection device 16 and at least one heat pipe 20, in this example two heat pipes 20.
  • the battery module connection device 16 can in turn, as also described for FIG. 1, have connection parts 24 and one conductor connecting these connection parts 24.
  • This conductor can generally be designed as a flexible connecting element 22.
  • the connection parts 24, on the other hand, are rigid.
  • the flexible formation of the connecting element 22 has the advantage that it allows stand tolerances between the connecting parts 24 to be compensated.
  • the heat pipes 20 are only connected to rigid parts of the battery module connection device 16, i.e. in this case only with areas of the connection parts 24 or are arranged on them.
  • These connecting parts 24 can in turn be designed in several parts.
  • a respective such connection part 24, which was also referred to at the beginning as a connection unit, has in this example a first coupling unit 24a, which can be electrically conductively coupled to a pole connection unit 12a, 12b of a relevant battery module 12, a second coupling unit 24b, which destroy- can be connected to the first coupling unit 24a in an electrically conductive manner, for example via a plug connection and / or screw connection or some other type of reversibly releasable mechanical and electrically contacting connection, as well as a rigid connecting rail 24c, which on the one hand is fixed, i.e.
  • first and second coupling units 24a, 24b are shown by way of example in the non-interconnected state in FIG. 2, but can, as described, be coupled to one another in a simple manner.
  • the battery module connecting device 16 is designed to be electrically insulated from the outside.
  • the respective components of this battery module connection device 16 are provided with a corresponding electrical insulation 32 or encased.
  • the parts of the heat pipes 20 extending outside this battery module connection device 16 can also be provided with a corresponding electrical insulation, which is not shown in detail here for reasons of clarity. However, as can now be clearly seen in FIG.
  • At least the first heat pipe part 20a of the respective heat pipes 20 is in direct and therefore electrically conductive contact with the parts of the battery module connecting device 16 that are live during operation, in this example the electrical parts of the respective Connection units or connection parts 24.
  • the connection of the respective heat pipes 20 to the battery module connection device 16 can also take place in any desired manner, for example using a ring eyelet, by soldering and / or welding, injection molding or the like.
  • the Electrically conductive parts of the connection parts 24 and of the connecting element 22 can also be formed from a metallic material with particularly good thermal conductivity, such as copper or a copper alloy.
  • the examples show how a cooled battery connector with heat pipes can be provided by the invention, which allows targeted cooling of battery modules directly in the area of their pole connection units and thus directly on temperature hotspots of the battery modules, thereby enabling particularly efficient and homogeneous cooling of battery modules can be provided and thereby above all aging effects can be minimized and the performance of the battery can be maximized.

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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)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un arrangement de refroidissement (14) destiné au refroidissement de modules de batterie (12), l'arrangement de refroidissement (14) possédant au moins un dispositif de refroidissement (20). L'arrangement de refroidissement (14) possède en outre au moins une partie d'un dispositif de liaison de module de batterie (16) destiné à la liaison électriquement conductrice d'un premier module de batterie (12) à un deuxième module de batterie (12). Le dispositif de refroidissement (20) possède au moins un caloduc (20), lequel comporte une première partie de caloduc (20a) qui est disposée au niveau de ladite partie du dispositif de liaison de module de batterie (16), et comporte une deuxième partie de caloduc (20b) destinée à être disposée au niveau d'un dissipateur thermique (25; 26, 28).
PCT/EP2020/057267 2019-04-09 2020-03-17 Arrangement de refroidissement pour refroidir des modules de batterie, batterie à haute tension et véhicule automobile WO2020207718A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080018876.2A CN113544897A (zh) 2019-04-09 2020-03-17 用于冷却电池模块的冷却系统、高压电池和机动车

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019205049.2 2019-04-09
DE102019205049.2A DE102019205049A1 (de) 2019-04-09 2019-04-09 Kühlungsanordnung zur Kühlung von Batteriemodulen, Hochvoltbatterie und Kraftfahrzeug

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WO2020207718A1 true WO2020207718A1 (fr) 2020-10-15

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CN (1) CN113544897A (fr)
DE (1) DE102019205049A1 (fr)
WO (1) WO2020207718A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021107822A1 (de) 2021-03-29 2022-09-29 Bayerische Motoren Werke Aktiengesellschaft Kühleinrichtung für einen elektrischen Energiespeicher mit Gravitationswärmerohren, elektrischer Energiespeicher sowie Kraftfahrzeug
DE102022111446A1 (de) 2022-05-09 2023-11-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batterieanordnung mit Kapillaranordnungen
DE102022111460A1 (de) 2022-05-09 2023-11-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batterieanordnung mit Kapillaranordnungen
DE102022114560A1 (de) 2022-06-09 2023-12-14 Bayerische Motoren Werke Aktiengesellschaft Stromschiene mit pulsierendem Wärmerohr, Baugruppe sowie Hochvoltbordnetz

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DE102021107822A1 (de) 2021-03-29 2022-09-29 Bayerische Motoren Werke Aktiengesellschaft Kühleinrichtung für einen elektrischen Energiespeicher mit Gravitationswärmerohren, elektrischer Energiespeicher sowie Kraftfahrzeug
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DE102022111446A1 (de) 2022-05-09 2023-11-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batterieanordnung mit Kapillaranordnungen
DE102022111460A1 (de) 2022-05-09 2023-11-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batterieanordnung mit Kapillaranordnungen
DE102022114560A1 (de) 2022-06-09 2023-12-14 Bayerische Motoren Werke Aktiengesellschaft Stromschiene mit pulsierendem Wärmerohr, Baugruppe sowie Hochvoltbordnetz

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