WO2012038359A2 - Véhicule à accumulateur d'énergie électrique et dispositif ainsi que procédé pour son refroidissement - Google Patents

Véhicule à accumulateur d'énergie électrique et dispositif ainsi que procédé pour son refroidissement Download PDF

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Publication number
WO2012038359A2
WO2012038359A2 PCT/EP2011/066171 EP2011066171W WO2012038359A2 WO 2012038359 A2 WO2012038359 A2 WO 2012038359A2 EP 2011066171 W EP2011066171 W EP 2011066171W WO 2012038359 A2 WO2012038359 A2 WO 2012038359A2
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WO
WIPO (PCT)
Prior art keywords
vehicle
parts
chassis
cooling
energy storage
Prior art date
Application number
PCT/EP2011/066171
Other languages
German (de)
English (en)
Other versions
WO2012038359A3 (fr
Inventor
Norbert Huber
Original Assignee
Siemens Aktiengesellschaft
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Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2012038359A2 publication Critical patent/WO2012038359A2/fr
Publication of WO2012038359A3 publication Critical patent/WO2012038359A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/18—Buses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • 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

  • the present invention relates to a vehicle having at least one energy store for electrical energy and at least one device for cooling the at least one energy store and to a method for cooling the energy store.
  • Vehicles in particular electrically driven or hybrid vehicles, have energy storage with large capacity. These may e.g. consist of electric batteries or double-layer capacitors. Especially with electrically driven vehicles, the energy storage devices must store a large amount of electrical energy, e.g. in the range of a few kWh, save and deliver in a short time. When charging and discharging a lot of heat is generated in the energy storage. This can lead to a strong increase in temperature in the energy storage, if it is not cooled.
  • the life of the energy storage is highly temperature dependent. When charging and discharging, a certain temperature limit must not be exceeded, since the life of the energy storage device decreases sharply even if the temperature limit is slightly exceeded. A temperature increase of 10 K can lead to a half-life reduction. For this reason, the temperature of the energy supply is kept as low as possible at any time.
  • a passive or active cooling device is typically provided. This is designed so that the heat is dissipated directly to the environment.
  • cool air from the surroundings of a vehicle will be sucked in, are routed through the power ⁇ memory and then heated to the environment of the vehicle are released again. This is usually done via an open design of the vehicle part, in which the energy storage are arranged.
  • a blower is required to generate an air flow.
  • a fan can actively generate an air flow over the energy storage.
  • the blower required to power means zusharmli ⁇ chen technical effort and generates costs.
  • Active cooling of energy storage can also be done via cooling circuits, such as e.g. a water cycle. It is transported via cooling channels amount of heat from the energy storage to cooling fins, which are in direct thermal interaction with air from the vehicle environment. This variant of the cooling is technically complex, expensive and consumes energy when pumping the cooling liquid.
  • Object of the present invention is therefore to provide a vehicle with at least one energy storage for electrical energy and at least one device for cooling the at least one energy storage, in which a good cooling with little technical effort can be realized.
  • it is also a task to reliably cool energy stores which are poorly accessible for air and / or cooling channels and thus to keep them below a critical temperature. It is to dispense with long cooling channels to centrally arranged cooling ribs if possible. Also, if possible, please ⁇ friendliness to the use of blowers, which are maintenance-intensive, consume a lot of energy and are technically complicated to do without.
  • the stated object is with respect to the vehicle with we ⁇ least one energy storage device for electrical energy and with at least one device for cooling the at least one energy storage with the features of claim 1 and with respect to the method for cooling at least one energy storage device for electrical energy in a vehicle the features of claim 8 solved.
  • Advantageous embodiments of the vehicle according to the invention with at least one energy store for electrical energy and with at least one device for cooling theschreibs ⁇ least one energy storage and the inventive method for cooling at least one energy storage for electrical energy in a vehicle will be apparent from the respective associated dependent claims.
  • the features of the independent claims with one another and with features of the dependent claims and features of the Unteran ⁇ claims among each other can be combined.
  • the vehicle according to the invention comprises at least one Ener ⁇ gieatorium for electrical energy and at least one pre ⁇ direction for cooling the at least one energy store.
  • the at least one energy storage device is thermally coupled to the vehicle rigidly connected parts, said parts being ⁇ forms are to cool the energy storage.
  • the parts may consist of the chassis and / or the body of Fahr ⁇ zeugs or include this.
  • the parts may have a large thermal mass and / or a large outer surface from the vehicle to its surroundings. With environment in this context, the exterior of the vehicle is described.
  • the thermal coupling of the energy storage with rigid parts connected in the vehicle allows cooling of the energy storage without parts such as blowers or cooling fins. This leads to a very cost-effective, simple and reliable cooling of energy storage.
  • the high thermal mass of the parts to a reliable cooling, whereby the temperature can not exceed a value critical for the energy storage value.
  • the large outer surface can provide reliable cooling.
  • the at least one energy store may be an electric battery and / or a double-layer capacitor, in particular with a large common surface with the rigidly connected parts in the vehicle.
  • the large thermal Oberflä ⁇ che ensures good heat transport from the Energyspei ⁇ cher to the parts.
  • the rigidly connected in the vehicle parts and the at least one energy storage may be arranged immovably to each other and in particular via at least one heat bridge with ⁇ be thermally connected to each other.
  • the thermal bridge can lead to improved heat transfer.
  • the immovable arrangement leads to increased reliability and increased life of the device.
  • the at least one thermal bridge can consist of a solid, in particular a thermally highly conductive plastic and / or a metal, in particular aluminum, iron or copper, or comprise one of these materials. These materials conduct heat very well and lead to a very effective transport of heat from energy storage to the rigid parts and thus to a very good cooling of the energy givers.
  • the at least one thermal bridge may be in the form of a plate or a finger. These forms are easy to manufacture and allow in the vehicle a very compact design in conjunction with the energy storage.
  • the at least one thermal bridge may comprise or consist of fluid channels filled with fluid, in particular water or oil.
  • the cooling channels can be the achievable area increase the energy storage and the rigid parts for heat transport and so improve the cooling. Even poorly accessible areas can possibly be achieved via cooling channels for good heat transport.
  • the amount of heat of the electrical energy storage is created by self-heating in use.
  • the amount of heat can be transferred directly to metallic parts of the vehicle, in particular ⁇ special on parts of the chassis and / or the body.
  • the amount of heat indirectly via metallic plates and / or finger-shaped parts, insbesonde ⁇ re of copper, aluminum and / or steel, on metallic parts of the vehicle, in particular parts of the chassis and / or the body, transferred.
  • Metallic parts have good thermal conductivity.
  • a direct transfer of the amount of heat is advantageous in adjacent to ⁇ energy storage to vehicle parts with large thermal mass and / or to vehicle parts with a large surface. This results in a particularly effective way of cooling the energy storage.
  • Fig. 1 is a schematic sectional view through an inventive vehicle 1 with energy storage for electrical energy 5 and with a device for cooling 3 of the energy storage 5, and
  • Chassis 3 via thermal bridges 8, and
  • Chassis 3 via a cooling circuit 12.
  • a passenger car PKW is shown as an inventive vehicle 1, which is shown schematically in sectional view.
  • the invention is in the distance ren exemplified at hand of the passenger car, wherein the inventions dung modern vehicle 1, for example, by a bus, truck ⁇ cars trucks, tram or train can be given.
  • the vehicle 1 comprises a chassis 2, which may have a body with an underbody, and a chassis 3.
  • the battery modules 4 in Fig. 1 are ⁇ Untitled on the chassis 3 buildin.
  • the chassis 3 in this case represents a rigidly connected part, which is designed to store the energy cow ⁇ len.
  • Under rigidly connected part is to be understood in connection with the vehicle 1 according to the invention that for the cooling effect, no movement of components of the part are necessary, as is the case for example in a fan.
  • the Fahrge ⁇ stell 3 has a large thermal mass and a large surface, which is directly in thermal interaction with the vehicle environment. Thereby, the originating at or in the battery cells 5 heat quantity can be discharged directly via the alternate ⁇ Fahrge 3 to the air in the vicinity of the vehicle. 1
  • Fig. 1 are exemplified two battery modules 4 with the chassis 3 in thermal contact. It is also possible for one or more than two battery modules 4 to be connected to the chassis 3. Alternatively or additionally, one or more battery modules 4 may be connected to other rigidly connected parts, such as the chassis 2, ie the body and / or the subfloor. Essential for the vehicle according to the invention is a good thermal contact between the battery modules 4 and the rigidly connected parts, the latter being in direct thermal contact with the ambient air of the vehicle 1. Instead of battery modules 4, individual battery Riezellen 5 are used, especially if individual Zel ⁇ len 5 can be better accommodated and distributed in the vehicle 1. In Fig. 2, an embodiment for a good thermal contact between the battery cells 5 and, for example, the chassis 3 is shown.
  • FIG. 1 An enlarged section through a battery module 4 in thermal contact with a part of the chassis 3 of the vehicle 1 shown in FIG. 1 is shown.
  • the individual battery cells 5 are connected via pole connector 6 to modules 4.
  • two battery cells 4 are connected via their poles with ⁇ today.
  • An interconnection of the battery cells 4 in series or in parallel can take place in accordance with the voltage and capacity of the cells 4 and the desired voltage and capacitance of a module 4.
  • An interconnection of the modules 4 with each other takes place according to the voltages and capacity required by the consumers in the vehicle 1. Consumers are, for example, in an electric vehicle, hereinafter referred to as e-car, the electric motor drive, the air conditioning, electronics and lighting.
  • the battery cells 5 adjacent to the chassis 3 disposed ⁇ , with a Gap pad 7 for a good thermal contact-between the battery cells 5 and carriage 3 ensures without erzeu electrical short circuits between for example the terminal connectors 6 via the metallic, electrically conductive chassis 3 ⁇ gene.
  • the good thermal contact between the battery cell 5 and the chassis 3 via the Gap pad 7 ensures development in heat generation in the battery cells 5 for a good dissipation of heat from the battery cell 5 via the chassis 3 to the outside air of the vehicle 1.
  • the high thermal mass of the Fahr ⁇ frame 3 allows for example when stationary vehicle 1 without wind ⁇ wind heat absorption by the chassis 3 itself, whereby a cooling of the battery cells 5 even when the vehicle 1 is stationary.
  • the gap pad 7 is constructed, for example, of a highly conductive plastic or includes this. However, it can also be constructed, for example, from a metal, in particular aluminum, iron or copper, in particular if the poles and / or pole connectors 6 of the battery cells 4 are electrically insulated or a thin electrical insulation is applied to the gap pad 7. This can be done for example by painting the gap pad 7.
  • the gap pad 7 may be in the form of a plate and / or may have the shape of one side, in particular the underside of the battery module 4.
  • thermal bridges 8 serve to form a good thermal contact between battery cells 5 and the chassis 3.
  • the finger-shaped thermal bridges 8 can be made of a metal, in particular aluminum, iron or copper. They each have from the chassis 3 in the interim ⁇ rule space between two adjacent battery cells 5 and communicate with it in thermal and in particular also in mechanical contact. Amount of heat which arises in the battery cells 5, is passed over the finger-shaped heat bridges to the chassis 3 and stored analogously to the embodiment of FIG. 2 in this or discharged from this directly to the ambient air.
  • the finger-shaped thermal bridges 8 have in comparison with a Gap pad 7 a larger contact surface on ⁇ with the battery cells. 5 As a result, good heat conduction is provided by the battery cells 5 via the thermal bridges 8, for example to the chassis 3.
  • the thermal bridges 8 can have L-shaped or finger-shaped cross sections. But there are also other forms conceivable. Thus, the thermal bridges may also be cup-shaped, fixed to the base surface, for example, on the chassis 3 and an inner circumference equal to or substantially equal to the outer periphery of a battery cell 5, wherein they over the common peripheral surface in thermal Contact with, for example, the one battery cell 5 stand. In order to prevent electrical short circuits on the thermal bridges 8 between poles or pole connectors 6 of the battery cells 5, as shown in FIG. 3, the poles 6 of the battery cells 5 point away from the chassis 3. Alternatively, an electrical connection between battery cells 5 can also be selectively generated if the poles 6 point in the direction of the chassis 3 and electrical contact takes place between the battery cells 5 via the chassis 3 and / or via thermal bridges 8.
  • FIG. 4 an alternative embodiment for a good thermal contact between the battery cells 5 and e.g. the chassis 3 via a cooling circuit 12 represents.
  • Analogous to the embodiment of FIG. 2 are the
  • the cooling plate 9 is flowed through by a cooling fluid.
  • the cooling fluid may consist of a gas such as air or of a liquid such as water, oil or other cooling liquids.
  • the cooling plate 9 is fluidly connected to the cooling circuit 12, in which the cooling liquid is passively moved by convection or actively via a pump 11.
  • Cooling channels 10 of the cooling circuit 12 lead to the chassis 3, and can, for example, at this along and / or by passing.
  • the chassis 3 is only an example of parts rigidly connected in the vehicle 1, and can also be replaced by parts such as the body and / or the underbody ⁇ the.
  • the cooling circuit 12 is designed tocardfulness ⁇ amount of heat generated in the battery cells 5, via the vehicle parts such as chassis 3 directly to the environment of the vehicle 1 ren.
  • the cooling circuit 12 In order to produce a good thermal contact between the battery cells 5 and the cooling circuit 12, as in Example of the chassis 3 also along or between Battery cells 5 cooling channels 10 run.
  • the amount of heat is discharged from the battery cells 5 to the cooling plate 9, the cooling channels or to or between the battery cell 5 is received by the cooling fluid and ported via a cooling fluid flow in the cooling circuit 12 to parts such as the chassis 3 trans ⁇ and delivered to this.
  • the amount of heat can be stored by the high thermal mass or Toge ⁇ ben by a large surface directly to the environment of the vehicle especially when driving against the passing air.
  • a fiction, according ⁇ vehicle can for example also comprise an additional fan or cooling fins.
  • a release of the amount of heat can also be done via air in the interior of the vehicle, which flows in the outer area.
  • Materials of the vehicle rigidly connected parts may also include metal alloys, plastics, glasses or elastomers such as rubber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un véhicule (1) doté d'au moins un accumulateur d'énergie électrique et d'au moins un dispositif de refroidissement de cet accumulateur d'énergie ainsi qu'un procédé de refroidissement de l'accumulateur d'énergie. Cet accumulateur d'énergie est couplé thermiquement à des pièces reliées rigidement dans le véhicule (1), les pièces étant conçues pour refroidir l'accumulateur d'énergie. La quantité de chaleur est évacuée directement ou indirectement sur des pièces de véhicule à grosse masse thermique et/ou sur des pièces de véhicule à grande surface en liaison thermique directe avec l'environnement du véhicule.
PCT/EP2011/066171 2010-09-23 2011-09-19 Véhicule à accumulateur d'énergie électrique et dispositif ainsi que procédé pour son refroidissement WO2012038359A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010041276.7 2010-09-23
DE201010041276 DE102010041276A1 (de) 2010-09-23 2010-09-23 Fahrzeug mit elektrischem Energiespeicher und Vorrichtung sowie Verfahren zu dessen Kühlung

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WO2012038359A2 true WO2012038359A2 (fr) 2012-03-29
WO2012038359A3 WO2012038359A3 (fr) 2012-07-26

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WO2018186179A1 (fr) * 2017-04-03 2018-10-11 株式会社デンソー Dispositif de refroidissement d'instrument monté sur véhicule
DE102021130807A1 (de) 2021-11-24 2023-05-25 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug
DE102022104227A1 (de) 2022-02-23 2023-08-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kraftfahrzeug mit einem elektrischen Antrieb und Verfahren zur Kühlung eines elektrischen Antriebs eines Kraftfahrzeugs
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CN113474193A (zh) * 2019-02-27 2021-10-01 标致雪铁龙汽车股份有限公司 用于使电池适配在支撑构件上的适配板件

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WO2012038359A3 (fr) 2012-07-26
DE102010041276A1 (de) 2012-03-29

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