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
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6554—Rods or plates
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
  • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
  • F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
  • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
  • F28F21/081—Heat exchange elements made from metals or metal alloys
  • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
  • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
  • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
  • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
  • H01M10/625—Vehicles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
  • F28D2021/0029—Heat sinks
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/0043—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for fuel cells
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
  • F28F2280/08—Tolerance compensating means
• • 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 invention relates to a heat conducting device for an electrical energy store of an at least partially electrically operated motor vehicle according to the preamble of patent claim 1.
• thermally conductive paste or thermally conductive casting compound is used to cool an electrical energy storage device, for example a high-voltage energy storage device, in order to achieve thermal contact with the cooling system of the electrical energy storage device in the motor vehicle.
• thermally conductive compounds are very expensive and heavy.
• an application process of the thermally conductive compound is difficult to control in the series process and there is a risk of air inclusions occurring during the application and leading to problems in ferry operations.
• the battery blocks can only be removed again with considerable effort due to the adhesive effect.
• the thermally conductive compound or thermally conductive casting compound is only conditionally recyclable.
• DE 102008 010 839 A1 relates to a battery with a heat-conducting plate arranged in a battery housing for controlling the temperature of the battery, wherein several individual cells electrically connected in parallel and/or in series with one another are thermally conductively connected to the heat-conducting plate.
• the battery is characterized in particular by a spring element, by means of which the individual cells can be pressed against the heat-conducting plate in a defined manner.
• DE 102008 034 876 A1 relates to a battery with a heat-conducting plate arranged on the battery housing for temperature control of the battery, wherein several individual cells electrically connected in parallel and/or in series with one another by means of a cell connector board are thermally conductively connected to the heat-conducting plate, with at least one spring element being provided by means of which the individual cells can be pressed against the heat-conducting plate in a defined manner. There are on the cell connector board or on the Metal plate arranged one or more biasing elements to a bias and attachment of the spring element.
• DE 102011 003 538 A1 relates to a device for pressing a cooler onto a battery, the cooler having at least one cooling surface for absorbing or dissipating thermal energy, and the battery having at least one contact surface for applying the cooling surface of the cooler.
• the device has a pressure part with at least one spring-elastic pressure element for transmitting a pressure force to a partial area of the cooler that faces away from a battery.
• the device also has a suspension device for suspending the pressure part on the battery, the suspension device being designed to generate a suspension force opposing the pressing force when the cooler is arranged on the battery and the suspension device is suspended on the battery.
• One aspect of the invention relates to a heat conducting device for an electrical energy store of an at least partially electrically operated motor vehicle, with at least one heat conducting element, which is designed to make contact with at least one battery cell of the electrical energy store and to dissipate heat from the at least one battery cell, and with at least one Spring element, which is designed to exert a defined spring force between the at least one battery cell and the at least one heat-conducting element.
• the heat-conducting element is in contact with a housing, in particular a housing wall of the housing, of the electrical energy store.
• the heat-conducting element can be in contact with the at least one battery cell on one side and with the housing for dissipating the heat on the other side.
• the heat conduction path can thus be implemented from the at least one battery cell via the heat conduction element to the housing.
• a cooling device for the electrical energy store is then formed on the housing side, so that the heat can be dissipated further.
• the cooling device can be fluidic, for example.
• the heat conducting device is also formed on an underside of the electrical energy store, in particular on a lower housing wall.
• the heat-conducting element is made of aluminum.
• aluminum is a good conductor of heat, so that the heat can be better dissipated from the battery cell.
• aluminum is very light, so that the heat-conducting device can be provided with reduced weight.
• the holding device is made of plastic.
• a holding device that is easy to produce can thus be provided.
• plastic is hard-wearing and particularly suitable for installation in an electrical energy store, since plastic, for example is not electrically conductive.
• plastic is light, so that the heat-conducting device is designed to be lighter.
• the holding device is a plastic injection molded part. This makes it possible for the holding device to be injection molded in a simple manner. The holding device can thus be produced in an injection molding tool with little manufacturing effort.
• the heat-conducting element is S-shaped when viewed in a cross-section of the heat-conducting element.
• an upper leg of the S-shape can be coupled to one battery cell.
• a further leg of the S-shape in particular a lower leg of the S-shape, can be coupled to the housing.
• the S-shape makes it possible for a thermal coupling to be produced between the at least one battery cell and the housing in the simplest possible way.
• the S-shape can easily be rotated around a pivot point, so that the rotation can be carried out more easily.
• the heat-conducting device has a multiplicity of heat-conducting elements which are each rotatably mounted.
• this makes it possible for good thermal conductivity of the heat-conducting device to be implemented on the basis of the large number of mounted heat-conducting elements.
• the heat of the at least one battery cell can thus be dissipated in an improved manner.
• the heat-conducting element can be designed in an S-shape.
• the S-shape allows easy layering.
• the thermal heat-conducting elements can be arranged in layers, as a result of which the number of thermal transmission elements, in particular the heat-conducting elements, can be significantly increased. Improved heat dissipation of the electric battery cell can thus be implemented.
• the heat-conducting elements thus overlap at least partially.
• the spring element is made of plastic.
• a simple and weight-reduced variant can thus be used of the spring element are provided.
• this is very easy to manufacture and easy to assemble.
• the spring element is designed as a leaf spring.
• the spring element is then at least partially in contact with the heat-conducting element. A simple spring effect can be generated by the leaf spring.
• two spring elements are arranged on the heat-conducting element.
• a spring element can rest on an upper leg and a second spring element on the lower leg of the S-shape.
• the spring elements can be supported on the holding device, so that a spring effect can be implemented.
• a further aspect of the invention relates to an electrical energy storage device with a heat-conducting device according to the preceding aspect.
• the electrical energy store is designed in particular as a high-voltage battery.
• the electrical energy store has a cooling device for cooling the at least one battery cell.
• Yet another aspect of the invention relates to a motor vehicle with an electrical energy store according to the preceding aspect.
• the motor vehicle is in particular at least partially electric, in particular fully electric.
• FIG. 1 shows a schematic side view of an embodiment of an electrical energy store with an embodiment of a heat conducting device
• Fig. 2 is a schematic perspective view of an embodiment of
• FIG. 1 shows a schematic side view of an embodiment of an electrical energy store 10 for an at least partially electrically operated motor vehicle 12, which is shown purely schematically.
• the motor vehicle 12 can also be operated fully electrically.
• FIG. 1 shows a heat-conducting device 14 for the electrical energy store 10.
• the heat-conducting device 14 has at least one heat-conducting element 16, in this case in particular three heat-conducting elements 16.
• the heat-conducting element 16 is designed to make contact with at least one battery cell 18 of the electrical energy store 10 and to dissipate heat Wy from the battery cell 18 .
• the electrical energy store 10 has a multiplicity of battery cells 18 .
• the battery cells 18 can be designed as prismatic battery cells 18, for example.
• the electrical energy store 10 can thus be embodied in particular as a high-voltage battery.
• the heat conducting device 14 has at least one spring element 20 , in the present case a multiplicity of spring elements 20 .
• a respective installation direction in motor vehicle 12 is indicated by the respective axes x, y and z.
• the z-axis describes in particular a vehicle vertical direction
• the y-axis describes a vehicle transverse direction
• the x-axis describes a vehicle longitudinal direction.
• the electrical energy store 10 also has a housing wall 22 to which the at least one heat-conducting element 16 is contacted.
• the housing wall 22 can in turn be contacted with a cooling device of the electrical energy store 12, whereby generated heat Wy from the battery cell 18 via the heat conducting element 16 to the Housing wall 22 and then in turn can be delivered to the cooling device.
• the housing wall 22 is in particular a lower housing wall 22 of the housing.
• the heat-conducting element 16 is rotatably arranged on a holding device 24 of the heat-conducting device 14 and the spring element 20 is arranged on the heat-conducting element 16 in such a way that a rotary movement 26 of the heat-conducting element 16 is cushioned.
• the heat-conducting element 16 can be mounted so as to be rotatable about a pivot point 28 .
• the heat conducting element 16 is S-shaped when viewed in a cross section of the heat conducting element 16 .
• FIG. 1 shows that the heat-conducting device 14 has a multiplicity of heat-conducting elements 16 which are each rotatably mounted.
• FIG. 1 shows that the spring element 20 is designed in particular as a leaf spring, it also being shown that two spring elements 20 are arranged on the heat-conducting element 16 .
• FIG. 2 shows a further embodiment of the heat conducting device 14 in a schematic perspective view.
• the plurality of heat conducting elements 16 which are each rotatably mounted are arranged in layers.
• the heat-conducting elements 16 thus overlap at least partially.
• the heat-conducting element 20 is made of aluminum.
• the holding device 24 can in particular be made of plastic, in particular the holding device 24 can be a plastic injection molded part.
• the spring element 20 can in particular also be made of plastic.
• the heat-conducting elements 20 are designed as individual laminae, in particular as thermal transmission elements, which are used for heat conduction and can be made, for example, from a heat-conducting material such as aluminum.
• These heat-conducting elements 16 are accommodated in the holding device 24, which can also be made of plastic, for example, and which at the same time mounts them in a resiliently rotatable manner.
• the holding device 24 can also be made of plastic, for example, and which at the same time mounts them in a resiliently rotatable manner.
• the thermal transmission elements can be arranged in layers, and thus the number of thermal transmission elements can be chosen to be significantly higher.
• the plastic springs, in other words the spring elements 20, can be configured relatively freely in the holding device 24, as a result of which low spring rates are also possible.
• the components of the heat-conducting device 14 or of the electrical energy store 10 are produced very inexpensively.
• the heat-conducting plates are very easy to assemble and disassemble in the motor vehicle 12 or in the electrical energy store 10 .
• a very simple and reversion-friendly battery structure can be implemented, making them inexpensive and easily recyclable.
• structural weight can be saved, since in particular the thermally conductive elements 20 have a lower weight than, for example, the thermally conductive paste.

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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)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Secondary Cells (AREA)
• Battery Mounting, Suspending (AREA)
• Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
• Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=77126772

Family Applications (1)

Country Status (6)

Family Cites Families (8)

• 2020
  • 2020-07-20 DE DE102020004354.2A patent/DE102020004354A1/de active Pending
• 2021
  • 2021-07-06 WO PCT/EP2021/068629 patent/WO2022017776A1/de unknown
  • 2021-07-06 EP EP21748510.1A patent/EP4182994A1/de active Pending
  • 2021-07-06 KR KR1020237001911A patent/KR20230027197A/ko unknown
  • 2021-07-06 US US18/006,027 patent/US20230349646A1/en active Pending
  • 2021-07-06 CN CN202180047820.4A patent/CN115769416A/zh active Pending

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