WO2013053828A1 - Dispositif de refroidissement pour accumulateur d'énergie électrique et dispositif d'accumulation d'énergie - Google Patents

Dispositif de refroidissement pour accumulateur d'énergie électrique et dispositif d'accumulation d'énergie Download PDF

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Publication number
WO2013053828A1
WO2013053828A1 PCT/EP2012/070165 EP2012070165W WO2013053828A1 WO 2013053828 A1 WO2013053828 A1 WO 2013053828A1 EP 2012070165 W EP2012070165 W EP 2012070165W WO 2013053828 A1 WO2013053828 A1 WO 2013053828A1
Authority
WO
WIPO (PCT)
Prior art keywords
coolant
energy storage
cooling
cooling device
sections
Prior art date
Application number
PCT/EP2012/070165
Other languages
German (de)
English (en)
Inventor
Isao Fukumoto
Nevzat Guener
Sebastian Oppermann
Matthias UECKER
Björn Demitter
Martin Wieberger
Alexander FROEMELT
Frederic Prokopowicz
Holger LÜDTKE
Simon Abraham
Andreas LAURINGER
Original Assignee
Continental Automotive Gmbh
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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2013053828A1 publication Critical patent/WO2013053828A1/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
    • 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
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates 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
    • 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 invention relates to a cooling device for an electrical energy store, in particular an electrochemical energy store based on lithium ions, and an energy storage device with such a cooling device.
  • Electric motors used as a drive source The supply of these electric motors with electrical energy is usually carried out using high-performance electrical energy storage, such as electrochemical batteries and / or capacitors. Since the maximum power output and the storage capacity of the electrical energy storage are further increased, at the same time the space of the electrical energy storage continues to decrease, the power density (power output per space) increases very strongly. Particularly in the case of electrochemical energy stores, high heat release occurs due to exothermic reactions or due to energy losses on the internal resistance of the cells. To avoid critical temperature conditions which should be avoided not only safe ⁇ standardized technical aspects, but also drastically reduce the life of the individual energy storage, efficient cooling concepts are required. Very high demands are placed on these cooling concepts with regard to a small installation space, a simple and inexpensive construction and the cooling efficiency.
  • a cooling device for an electrical energy store has at least one flow channel for a coolant, which is divided into at least two sections and at least one inlet opening for supplying coolant and at least one outlet opening for discharging coolant.
  • the cooling device furthermore has a cavity and at least one tube, which is at least partially disposed in the at least one cavity, forming a gap between an outer wall of the tube and an inner wall of the cavity.
  • the interior of the tube forms one of the sections of the flow channel and the gap forms another of the sections of the flow channel.
  • the cooling device is designed such that differs when flowing through the flow channel with the coolant, the flow direction of the coolant in the interior of the pipe from the direction of flow of the coolant in the gap un ⁇ .
  • the cooling device according to the invention is designed such that a direction change of the coolant flow is forced within the flow channel.
  • a complete reversal of direction of the coolant flow The temperatures of the coolant in the interior of the tube and in the gap differ at least in sections.
  • a very effective cooling and a very effective heat transfer between the electrical energy storage to be cooled and the coolant can be achieved. Due to the relatively high flow velocity in the space formed between the inner wall of the cavity and the tube gap, there is Tur ⁇ turbulences in the coolant flow, which significantly improves the heat transfer to the coolant.
  • the inlet opening and the outlet opening can be arranged very close together.
  • the coolant supply and the coolant outflow can therefore be made very compact.
  • the proposed construction is characterized by a extremely small space, a very good cooling efficiency and low material and manufacturing costs.
  • this has at least one just trained Mullmaschine istsab- section at which a to be cooled energy storage can be brought into thermal contact with the cooling device.
  • the cooling device furthermore has a cooling section in which the at least one flow channel runs and which is arranged laterally of the contacting section and is in thermally conductive contact therewith.
  • the contacting portion is preferably flat and large ⁇ a flat design and size as dimensioned so that it provides the greatest possible contact area with the to be cooled Ener ⁇ gie Arabic.
  • a very good thermally conductive connection to be cooled energy store on the one hand ensures the cooling device at the same time a good accessibility of the cooling section it ⁇ ranges, which allows a simpler coolant supply and disposal ,
  • the cooling section or the contacting section can be designed with regard to a compact and robust coolant supply and removal or with regard to an optimal thermal connection with the energy store to be cooled.
  • this has two cooling sections, in each of which at least one flow channel for the coolant extends and which are arranged on opposite sides of the cooling device, that the at least one contacting section between the two cooling sections.
  • each flow channel on two inlet openings which are arranged on opposite sides of the cooling device in alignment.
  • each flow channel on two From ⁇ passage openings which are arranged on opposite sides of the cooling device in alignment.
  • the two inlet openings and the two outlet openings are preferably arranged on the same opposite sides as the contacting sections. This design allows a very compact arrangement of a plurality of cooling devices in a row, wherein the inlet openings, the outlet openings of adjacent cooling devices are coupled together. So can a very compact and cost-effective parallel connection
  • this has two contacting sections, which are arranged on opposite ⁇ sides of the cooling device.
  • the design of the cooling device makes it possible to bring at least two energy stores to be cooled in thermal contact with the cooling device.
  • the cooling device may have two contacting sections arranged on opposite sides for at least one energy store to be cooled, wherein the contacting sections are located between the cooling sections. In this way, the space can be optimally utilized and the
  • Cooling efficiency of the cooling device can be further increased.
  • this has an integrally formed base body on which the at least one contacting portion and the at least one cavity are formed.
  • the base body is produced by an extrusion process. Due to the integral body with integrated Dies michsabêten and cavity, the heat conduction between the contacting and cooling section is very high.
  • the base body is made of a material with high thermal conductivity, for example aluminum. By the extrusion process, the body can be very easily, inexpensively and in high
  • An energy storage device is equipped with at least one energy storage module.
  • the Ener ⁇ gie acknowledgedmodul has at least two cooling devices as claimed in any of claims 4 to 7, which are so arranged in a row one behind the other, that the inlet openings of the cooling devices in a line and the outlet of the cooling devices in a line are located.
  • the at least one submodule Energyspei ⁇ a plurality of electrical energy storage, which are arranged at the contacting portions of the cooling devices.
  • the energy storage device constructed in this way is characterized by an extremely compact construction and excellent cooling power for the energy storage.
  • the dimension of the inlet openings and the outlet openings and the dimension of the flow channels can be matched to one another such that essentially the same coolant throughput occurs in each of the cooling devices within an energy storage module. Thus, temperature differences within the individual energy storage modules can be minimized.
  • the parallel connection of the cooling devices within the respective energy storage modules results in a very low pressure loss in the flow with coolant.
  • this has a plurality of energy storage modules, which are arranged such that the rows of successively ⁇ on ordered cooling devices of the individual energy storage modules are parallel to each other.
  • the electrical energy storage devices contained in the energy storage device can be divided into a plurality of energy storage modules arranged in parallel and connected in parallel with respect to the coolant supply.
  • two degrees of freedom for dividing the plurality of electrical energy storage are available, whereby an optimization of the energy storage device with respect to the outer dimensions and the coolant supply can be achieved.
  • Coolant inflow connection with the at least one inlet Opening connects a first cooling device within each energy storage module.
  • the manifold ⁇ device has at least one coolant return port for connection to a coolant return line and at least one collecting channel, which connects the at least one outlet of the first cooling means within each Energyspei ⁇ chermoduls with the coolant return port.
  • the energy storage device is characterized by a common distribution device for all energy storage modules contained. Due to the coolant inlet connection, a coolant source can be connected very quickly and easily. This applies to the coolant return connection and a
  • Coolant discharge line The common distribution channel and the common collection channel for all energy storage modules ensure an even distribution and a collected return of the coolant from all energy storage modules. By concentrating the coolant distribution and the coolant disposal in a common component not only the number of components can be reduced, but also the production costs can be further reduced.
  • this has a termination device which is arranged at an opposite end of the at least one energy storage module and which closes the inlet and outlet openings of the respective last cooling device within each energy storage module .
  • this has a clamping device, by means of which the at least one energy storage module between the distributor Ler issued and the termination device can be clamped.
  • the components of the energy gie acknowledgedmodule (cooling means and electrical Ener ⁇ gie amid) and the distributor device and the closing device are held together stably. Furthermore, the electrical energy stores can be pressed by applying a defined tensile force against the contacting sections of the cooling devices, as a result of which the heat transfer from the electrical energy stores via the cooling devices to the coolant can be markedly improved.
  • the clamping device is designed such that the tensile force or clamping force is variably adjustable to the components of the energy storage modules.
  • Figures la and lb are schematic cross-sectional views of an embodiment of a cooling device for an electrical energy storage
  • Figure 2 is a perspective view of a
  • Figure 3 is a schematic representation of a
  • Figure 4 is a schematic, perspective
  • FIG. 5 is a schematic cross-sectional view of the energy storage device
  • FIG. 6 shows a schematic cross-sectional view of a distributor device
  • Figure 7 is a schematic, perspective
  • FIG. 1b shows the cross-sectional view along the step line A-A in FIG.
  • the cooling device 1 has at two opposite ends in each case a cooling section 2 and two lying between thedeab ⁇ sections 2, on opposite sides (flat sides) arranged contacting sections 3 for a to be cooled energy storage (shown in Figure 3).
  • the contacting sections 3 are laterally delimited by dashed lines in FIG. 1 a (in FIG. 1, the second contacting section 3 is arranged on the rear side of the cooling device 1 and therefore can not be seen).
  • an electrical energy store to be cooled (see FIG. 3), preferably a lithium-ion-based electrochemical battery, is to be brought into heat-conducting contact with the cooling device 1.
  • the cooling sections 2 lying laterally of the contacting sections 3 each have at least one flow channel 4 for a coolant, for example water, at least one inlet opening 5 for supplying coolant and at least one outlet opening 6 for discharging the coolant.
  • each flow channel 4 has two inlet openings 5, which are arranged on opposite sides of the cooling device 1 in alignment.
  • the cooling device 1 is preferably two from ⁇ openings 6 which are arranged on the opposite sides of the cooling device 1 in alignment.
  • the Inlet openings 5 and the outlet openings 6 are preferably provided on the same opposite sides of the cooling device 1 as the contacting sections 3.
  • at least one cavity 7 is formed in each cooling section 2.
  • each cooling section 2 each have a tube 8, which is at least partially, preferably completely arranged to form a gap 9 between an outer wall of the tube 8 and an inner wall of the cavity 7 in the respective cavity 7.
  • Characterized the flow channel 4 is divided into at least two sections from ⁇ , wherein the interior of the pipe 9 form one of the sections 10 and the gap another of the portions of the flow channel. 4
  • the cooling device 1 is designed in such a way that, when the coolant flows through the flow channel 4, the flow direction of the coolant in the interior of the tube 10 is represented by the flow direction of the coolant (represented by arrows in FIG. 1 b) in the gap 9 different.
  • coolant can be introduced into the flow channel 4 from both sides via both inlet openings 5.
  • the cooling device 1 is designed in such a way that the coolant supplied via the inlet openings 5 first flows through the inner tube 8 in the upward direction and, in the reverse direction, flows downwards in the gap 9 as it emerges from the tube 8 and leaves the cooling device via the outlet openings 6.
  • the coolant flow within the coolant device 1 can also be easily reversed by supplying the coolant via the two above-mentioned openings (which then act as inlet openings) and via the lower-lying openings (Which then act as outlet openings) is discharged again.
  • the cooling device 1 shown in the exemplary embodiment is provided in each cooling section 2, each with a through hole 11 which is closed and sealed at its two open ends by means of corresponding closure body 12 (for example plugs or closure screws ) and so forms the cavity 7.
  • the lying in the cavity 7 tube 8 is dimensioned so that its outer diameter is smaller than the inner diameter of the cavity 7. This creates between the inner wall of the cavity 7 and the outer wall of the tube 8, the gap 9, in which the coolant can flow.
  • the tube 8 is further dimensioned so that between its free ends and the closure bodies 12 is a distance, so that in the formed spaces a coolant flow is possible.
  • the tube diameter is widened and substantially corresponds to the inner diameter of the cavity 7.
  • this region of the tube 8 there is no gap between the inner wall of the cavity 7 and the outer wall of the tube 8 exists.
  • no coolant flow is possible in this area.
  • this area by a corresponding sealant or equivalent
  • the length of the tube 8 is dimensioned such that it does not cover the inlet openings 5, so that a freedemit ⁇ telzier thanks to the inlet openings 5 in the tube 8 is possible.
  • the cooling device preferably has an integrally formed base body 13, on which the contacting sections 3 and the cooling sections 4 are formed from ⁇ .
  • a base body 13 is preferably produced by extrusion molding.
  • the inlet openings 5 and the outlet openings 6 can after extrusion in the obtained profile body can be drilled in a simple manner.
  • the inlet openings and the outlet openings can each be provided with an annular groove 14, in each of which an O-ring seal 15 can be inserted.
  • the tubes 8 can be introduced into the formed in the frame of the extrusion process through ⁇ holes. 11
  • the through holes 11 are then closed by means of the closure body 12 so that the cavities 7 remain in the interior.
  • the contacting sections 3 are flat and flat.
  • the expansion Bezie ⁇ hung, the areal dimensions of approximately PLEASE CONTACT ⁇ portions 3 depends mainly on the size of the energy storage to be cooled.
  • the energy storage devices 14 (see Figure 3) is mostly electrochemical battery ⁇ cells, preferably lithium-ion based. These are often designed as prismatic battery cells with a rigid housing made of aluminum or as so-called flat cells with a housing made of flexible film.
  • the areal size of the contacting portions 4 is preferably dimensioned such that the contact surface between the cooling energy to save ⁇ 13 and the cooling device 1 is as large as possible.
  • the attachment of the energy storage device 14 to be cooled is preferably carried out by means of a double-sided adhesive, very good heat-conducting and electrically insulating adhesive film (not shown).
  • the cooling device 1 may have a positioning device 40.
  • the positioning device 40 may, for example, have at least one positioning pin 41 per tube 8 used, which is plugged through an associated through-hole 42 provided in the outer wall of the cooling device 1 in the region of the respective cooling section 4 so far as to locate the respective tube arranged in the cavity 8 touched and this ensures in his position.
  • the positioning pin 41 thus functions as a spacer between the outer wall of the tube 8 and the inner wall of the cavity 7 act. At the same time, however, the positioning pin 41 allows the flow of coolant in the gap 9.
  • On the outer wall and / or the inner wall of the tube 8 may preferably also surveys 50 are formed, which generate or enhance turbulence in the coolant flow.
  • the contacting portions 3 are preferably formed as a recess in the base body 13.
  • the cooling device 1 therefore has a smaller cross section in the region of the contacting sections 3 than in the cooling sections 4
  • the energy store 13 to be cooled (see FIG. 3) is sunk to a certain degree in the contacting section 3, as a result of which the supernatant can be significantly reduced.
  • the contacting sections 3 are designed such that the energy storage device 13 to be cooled can be arranged between two cooling devices 1 at the respective contacting sections and contact the mutually facing sides of the cooling sections 3 of the two cooling devices 1 or have a very small spacing (approximately 1 mm ).
  • FIG. 4 shows a first exemplary embodiment of an energy storage device 15 in a perspective view.
  • the energy storage device 15 has an energy storage module 16 which has a plurality of cooling devices 1 and a plurality of electrical energy storage devices 14, as described with reference to FIGS. 1 to 3.
  • the electrical energy storage devices 14 are arranged between the cooling devices 1, each energy storage device 14 preferably being in heat-conducting contact on both sides with the contacting sections 3 of a respective cooling device 1.
  • the power storage device 15 further includes a distribution device 17 which is disposed at one end of Energyspei ⁇ chermoduls 16, and a terminating device 18 which is located at the opposite end of the Energyspei ⁇ chermoduls sixteenth
  • the manifold 17 has a coolant supply connection 19 for connecting the Ener ⁇ gie Grandevorides 15 to a (not shown) coolant source. Furthermore, it has a coolant return port 20 for connecting the energy storage device 15 to a coolant return line (not shown).
  • the distribution means 17 accepts further to distribute the refrigerant supplied from the refrigerant source to theméeinrich ⁇ obligations 1 and the recycled by the coolant devices 1, the task heated to collect the coolant and the cooling ⁇ supply medium return line to.
  • the exact configuration of the distributor device will be explained in more detail below with reference to FIG.
  • the termination device 18 serves to produce a
  • the closing device 18 is designed such that it closes the facing it, inlet and outlet openings 5, 6 of the last cooling device 1 within the Energyspei ⁇ chermoduls 16 (see also Figure 5). This will ensures that no coolant from the last cooling ⁇ device 1 expires within the row of the energy storage module 16 but rather the coolant flows back to the manifold 19.
  • the energy storage device 15 further has a clamping device 21, by means of which the energy storage module 16 between the distributor device 17 and the terminating device 18 can be clamped.
  • the clamping device 21 is in the embodiment as a whole of four over the entire length of the energy storage device extending screws 21, which clamp the energy storage module 16 between the manifold 17 and the termination device 18 with a variable adjustable force. As a result, the energy storage device 15 is held together and at the same time to be cooled energy storage 14 with a defined force against the contacting portions 3 of the surrounding
  • both the distributor device 17, the termination device 18 and the cooling devices 1 are provided with through-holes 22 at suitable locations.
  • the clamping device 21 as a the
  • Energy storage module 16 the distribution device 17 and the terminal 18 encompassing screw clamp are executed (not shown). Furthermore, a (detachable) bonding of said components or a tensing of the components by means of a plug-in system is possible.
  • FIG. 5 shows a schematic cross-sectional view of the distributor device 17.
  • the bore 24 for the coolant inflow port 19 (see FIG. 4) and the bore 23 for the coolant return flow port 20 (see FIG. 4) can be seen.
  • the distributor device 17 further has a distributor channel 25, which via the corresponding bore 24th is connected to the coolant inflow port and which is designed and arranged so that it
  • Coolant inflow port 19 with him facing a ⁇ openings 5 of the first coolant device 1 connects within the energy storage module 16, so that the coolant from the coolant source through the coolant inflow port 19, the bore 24, the manifold passage 25 flows through via the inlet openings 5, all the coolant means in succession (see also FIG. 6).
  • the distributor device 17 has a collecting channel 26, which is connected via the bore 23 to the coolant return port 20 and which is designed and arranged such that it locates the outlet openings 6 of the first cooling device 1 within the energy storage module 16 facing the distributor device 17 Coolant return connection 20 connects. As a result, the coolant recirculated from the cooling devices 1 via the outlet openings 6 flows into the collecting channel 26 and further into the coolant return line via the coolant return connection.
  • FIG. 6 shows a schematic cross-sectional view of the energy storage device 15. Based on this, the operation of the energy storage device 15 will be explained in more detail. For reasons of clarity, the representation of the energy store and the naming of all components of the individual cooling devices 1 has been dispensed with. Rather, the coolant flow within the energy storage device 15 is represented by arrows.
  • FIG. 6 shows the package of a plurality of cooling devices 1 arranged one behind the other in the row, wherein these are arranged in such a way that both the inlet openings 5 of the cooling devices 1 are in alignment and the outlet openings 6 of the cooling device are in alignment.
  • Cooling devices 1 are those which have been explained in greater detail with reference to FIGS. 1 to 3. This arrangement of the cooling devices 1 results in a first global cooling central channel 27, which is formed by the in-flight inlet openings 5, and a second global coolant channel 28, which is formed by the located in a further escape outlet 6 of the cooling devices 1. In this way, a coolant flow between the cooling devices 1 is possible both via the inlet openings 5 and via the outlet openings 6 of the cooling devices 1.
  • the distributor device 17, on the opposite side of the termination device 18 is arranged.
  • the inlet openings 5 of the first cooling device 1 facing the distributor device 17 are connected to the distributor channel 25 of the distributor device 17 within the row of cooling devices of the energy storage module, so that coolant can be supplied to the energy storage module 16 via this path.
  • the distributor means 17 are facing outlet openings 6 of the first cooling device 1 within the energy storage module to the collection channel 26 of the manifold ⁇ device 17 is connected, so that discharged from the energy storage module 16 via this path refluxing coolant.
  • the closing device 18 closes its inlet openings 5 and outlet openings 6 of the last cooling device 1 within the energy storage module 16. This prevents the escape of coolant from these openings, as a result of which the coolant remains in the circuit.
  • FIG. 1 Another embodiment of the energy storage device 15 is shown in FIG. This embodiment differs from that shown in Figures 4 to 6 embodiment only in that there are several Ener ⁇ gie Grandemodule 16 has, which are arranged so that the rows are parallel successively arranged cooling devices of the individual energy storage modules 16 to each other.
  • the structure of the energy storage modules 16 itself is identical to the energy storage module shown in FIGS. 4 to 6.
  • the energy storage device 15 has a common distribution device 17 and a common termination device 18 for all energy storage modules 16.
  • the individual energy storage modules 16 are, as already explained with reference to FIGS 4 to 6, connected to the distribution device 17, so that they can supply the energy storage modules 16 accordingly with coolant and on the other hand can dissipate the spent coolant.

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  • 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)

Abstract

L'invention concerne un dispositif de refroidissement (1) pour un accumulateur d'énergie électrique (13), doté d'au moins un canal d'écoulement (4) pour un réfrigérant divisé en au moins deux parties et comportant au moins une ouverture d'entrée (5) destinée à amener le réfrigérant et au moins une ouverture de sortie (6) destinée à évacuer le réfrigérant. Le dispositif de refroidissement (1) comporte au moins une cavité (7) et au moins un tube (8) disposé au moins en partie dans la ou les cavités (7), une fente (9) étant ainsi produite entre une paroi extérieure du tube (8) et une paroi intérieure de la cavité (7). L'espace intérieur du tube (8) forme une des parties du canal d'écoulement (4), et la fente (9) une autre des parties du canal d'écoulement (4). Le dispositif de refroidissement (1) est réalisé de telle manière que, lorsque le canal d'écoulement (4) est traversé par le réfrigérant, la direction d'écoulement du réfrigérant dans l'espace du tube (8) est différente de la direction d'écoulement du réfrigérant dans la fente (9).
PCT/EP2012/070165 2011-10-14 2012-10-11 Dispositif de refroidissement pour accumulateur d'énergie électrique et dispositif d'accumulation d'énergie WO2013053828A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011084536.4A DE102011084536B4 (de) 2011-10-14 2011-10-14 Kühleinrichtung für einen elektrischen Energiespeicher und Energiespeichervorrichtung
DE102011084536.4 2011-10-14

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WO2013053828A1 true WO2013053828A1 (fr) 2013-04-18

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