EP4402744A1 - Unterlegscheibe für einen elektrischen energiespeicher, elektrischer energiespeicher, anordnung sowie kraftfahrzeug - Google Patents
Unterlegscheibe für einen elektrischen energiespeicher, elektrischer energiespeicher, anordnung sowie kraftfahrzeugInfo
- Publication number
- EP4402744A1 EP4402744A1 EP22765034.8A EP22765034A EP4402744A1 EP 4402744 A1 EP4402744 A1 EP 4402744A1 EP 22765034 A EP22765034 A EP 22765034A EP 4402744 A1 EP4402744 A1 EP 4402744A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washer
- energy storage
- storage module
- housing
- contact surfaces
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- 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
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
-
- 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
-
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/85—Ceramic-to-metal-connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Washer for an electrical energy store, electrical energy store, arrangement and motor vehicle
- the invention relates to a washer for arranging in a mechanical connection between an energy storage module and a housing of an electrical energy storage device for a motor vehicle, the washer having an axial hole for receiving a connecting means of the mechanical connection and axially opposite contact surfaces for pressing onto metallic contact surfaces of the energy storage module and of the has housing.
- the invention also relates to an electrical energy store, an arrangement made up of an electrical energy store and a heat source, and a motor vehicle with such an arrangement.
- Hybrid vehicles usually have an electric machine powered by the electric energy store and an internal combustion engine.
- the electrical energy storage device has a housing in which at least one energy storage module is arranged and held.
- a cell module frame of the energy storage module can be mechanically connected to the housing, for example via screws.
- the mechanical connection can have a metallic washer with axially opposite contact surfaces for pressing against the cell module frame and the housing, which is designed to absorb an operating load of the mechanical connection, in particular pressure and friction forces caused by screwing.
- a metallic washer has good setting behavior, a high permissible surface pressure and a high level of robustness.
- a current flow for potential equalization between the energy storage module and the housing can take place via such a metal washer.
- metal washers also have good thermal conductivity. This can be disadvantageous if there is a heat source near the housing, For example, there is an exhaust system of the motor vehicle designed as a hybrid vehicle. A heat input from the exhaust system can lead to a temperature gradient within the energy storage module, which can have a negative effect on operation and the service life of energy storage cells of the energy storage module.
- the washers can be made of a thermally insulating material, for example a ceramic, which has poorer setting behavior, a lower permissible surface pressure and less robustness than a metallic washer.
- a thermally insulating material is also electrically insulating, so that potential equalization cannot be provided.
- a washer according to the invention is used for arranging in a mechanical connection between an energy storage module and a housing of an electrical energy storage device for a motor vehicle.
- the washer has an axial hole for receiving a connecting means of the mechanical connection and axially opposite contact surfaces for pressing against metallic contact surfaces of the energy storage module and the housing.
- the washer includes a metallic socket for providing a current path between the contact surfaces for equipotential bonding between the energy storage module and the housing. Axially opposite end faces of the metal bushing form the contact surfaces.
- the socket has a cross-sectional constriction forming a safety fuse for interrupting the current path in the event of an overcurrent.
- the washer comprises a thermally insulating material which encloses the metallic bushing at least in the region of the cross-sectional reduction and compensates for the cross-sectional reduction, in order to provide a substantially constant outer diameter of the washer and to reduce a thermal conductivity of a thermal conduction path formed via the washer between the housing and the energy storage module.
- the invention also includes an electrical energy store for a motor vehicle with at least one energy storage module, a housing for accommodating the at least one energy storage module, at least one connecting means for providing a mechanical connection between metallic contact surfaces of the at least one energy storage module and the housing, and at least one washer according to the invention.
- the invention also relates to an arrangement for a motor vehicle, in particular a hybrid vehicle, with at least one electrical energy store and a heat source.
- the electrical energy store can be arranged in the vicinity of the heat source, in particular an exhaust system of the motor vehicle powered by an internal combustion engine and electrically.
- the housing can have, for example, a double-shell lower part and a housing cover, so that two housing areas connected to one another can be formed.
- At least one energy storage module can be arranged in each of the housing areas. Between the housing areas, in particular between the two shells of the lower part and the housing cover, a channel can be formed which extends in the longitudinal direction of the vehicle and through which a pipe of the exhaust system runs. The exhaust gas flowing in this pipe can result in an undesired introduction of heat into the electrical energy store.
- the at least one energy storage module can have a plurality of energy storage cells, for example prismatic battery cells, which can be held by a cell module frame.
- the energy storage module can be mechanically connected to the at least partially metallic housing via the at least partially metallic cell module frame.
- the cell module frame and the housing have contact areas with smooth, flat contact surfaces against which the contact surfaces of the washer can be placed and pressed.
- the washer is therefore arranged between the contact surface of the energy storage module and the contact surface of the housing and is clamped or pressed in via a connecting means.
- the connecting means is in particular a screw, so that the mechanical connection is a screw connection.
- the contact area of the energy storage module and the washer have through bores or holes through which a shank of the screw is guided.
- a screw head of the screw lies on a side of the opposite side of the contact surface Contact area of the energy storage module.
- the contact area of the housing may have a threaded screw hole for tightening the screw.
- the contact area of the housing can also have a through hole, so that the screw is secured by means of a nut on a side of the contact area of the housing opposite the contact surface.
- the washer now fulfills several functions.
- the washer provides a robust mechanical connection with a high permissible surface pressure and good setting behavior between the housing and the energy storage module.
- the washer reduces heat input into the energy storage module.
- the washer provides a current-conducting connection between the energy storage module and the housing for potential equalization.
- the washer acts as an overcurrent protection device to prevent overcurrent flow between the energy storage module and the housing.
- Such an overcurrent can be, for example, a short-circuit current propagating through the energy storage module, for example as a result of a thermal runaway of an energy storage cell.
- the washer is therefore designed as a thermal insulating disk with an integrated short-circuit protection.
- the washer which is in particular in the form of a hollow cylinder, consists of two areas of different material.
- the first area is formed by the metallic bushing, which has the hole for accommodating the connecting means and whose metallic end faces form the contact faces of the washer.
- the metallic part of the washer is therefore designed in such a way that it offers a smooth, flat support on the contact surfaces to the clamping partners, i.e. the housing and the cell module frame. Because the contact surfaces are metallic, they are particularly robust and can reliably absorb the operating load of the clamping partner.
- the metallic socket extends over the entire thickness or axial height of the washer, so that the current path can be formed between the cell module frame and the housing for the potential equalization.
- the socket has the cross-sectional tapering or cross-sectional reduction that can be fused in the event of an overcurrent.
- a cross section of the bush is smaller in the area of the cross-sectional reduction than in the area of the end faces.
- the cross-section is reduced in such a way that only a residual cross-section designed for the overcurrent or short-circuit current remains.
- the design of the residual cross section can be specially adapted to the electrical energy store and the short-circuit currents occurring there, so that this residual cross-section melts when the short-circuit current flows and interrupts the short-circuit current path from the energy storage module to the housing.
- the narrowing of the cross section thus forms a predetermined breaking point in the event of an overcurrent, which electrically separates the two contact surfaces and thus the metallic contact surfaces in the event of a fault.
- the washer has the thermally insulating material, for example a glass fiber reinforced thermoset, which forms the second area of the washer.
- the thermally insulating material fills the remaining cross section in the area of the taper of the metal bushing at least to such an extent that the cross section of the washer in the area of the taper corresponds to the cross section in the area of the end faces and thus the hollow cylindrical shape of the washer is formed.
- the outer diameter is therefore essentially constant over the axial height of the washer. Thanks to this thermally insulating jacket, the washer can continue to withstand the mechanical operating load even if the safety fuse is triggered, i.e. if the narrowing of the cross section melts.
- the thermally insulating material reduces the thermal conductivity of the washer and thus reduces the heat input from the heat source arranged outside the housing into the energy storage module.
- the metal bushing has two plate-shaped end pieces whose surfaces form the metal end faces and which are connected via the cross-sectional reduction, the thermally insulating material being arranged between the plate-shaped end pieces and surrounding the cross-sectional reduction.
- the socket is therefore designed as a perforated, metallic core whose opposite end pieces are designed like plates.
- the cross-sectional reduction is arranged between the end pieces and is designed, for example, as a web with a constant thickness.
- the narrowing of the cross section is preferably designed in the shape of a double cone.
- the socket is thus formed essentially in the shape of an hourglass.
- the invention also relates to a motor vehicle with an inventive
- the motor vehicle is designed in particular as a hybrid vehicle and has an electrical machine, an internal combustion engine, an exhaust system functioning as a heat source and the electrical energy store according to the invention.
- Fig. 1 is a perspective view of a washer for an electric
- Fig. 2 shows a sectional perspective view of the washer according to Fig
- Fig. 3 is a schematic sectional view of a detail of the electrical
- FIG. 4 shows the electrical energy store according to FIG. 3 with the washer after an overcurrent flow.
- the electrical energy store 2 can be used for a motor vehicle, in particular a hybrid vehicle.
- the electrical energy storage device 2 has an energy storage module 3 and a housing 4 .
- the energy storage module 3 has a plurality of energy storage cells 5 stacked on top of one another, which are held by a cell module frame 6 .
- the energy storage module 3 arranged within the housing 4 is fixed to the housing 4 .
- the energy storage module 3 has a first contact surface 7 and the housing 4 has a second contact surface 8 .
- the contact surfaces 7, 8 are metallic.
- the washer 1 is arranged between the contact surfaces 7, 8 in such a way that contact surfaces 9a, 9b of the washer 1 rest against the contact surfaces 7, 8.
- the cell module frame 6 and the housing 4 are connected via a connecting means 10 in the form of a screw, forming a mechanical connection 11 in the form of a screw connection, which is passed through the contact surfaces 7 , 8 and the washer 1 .
- the washer 1 is clamped between the contact surfaces 7 , 8 by the screw 10 .
- the washer 1 has a metal bushing 12, the axially opposite metal end faces 13a, 13b of which form the contact surfaces 9a, 9b.
- the opposite end faces 13a, 13b are here surfaces of plate-shaped end pieces 14a, 14b of the metal bushing 12.
- the metal bushing 12 also has a cross-sectional taper 15 connecting the end pieces 14a, 14b.
- a current path 16 can be formed between the cell module frame 6 and the housing 4 via the plate-shaped end pieces 14a, 14b and the cross-sectional taper 15, which is double-cone-shaped here, via which potential equalization can take place between the energy storage module 3 and the housing 4.
- the bushing 12 also has an axial hole 17 for receiving a shank of the screw 10 .
- the narrowing of the cross section 15 forms a safety fuse 18 which melts when an overcurrent flows through the washer 1 and thus interrupts the current path 16 .
- 4 shows the washer 1 after the safety fuse 18 has been triggered. There, the contact surfaces 9a, 9b and thus the energy storage module 3 and the housing 4 are electrically separated.
- a pressure-resistant, thermally insulating material 19, for example duroplast, is used which has the cross section of washer 1 added. In this way, the absorption of connecting forces of the screw connection 11 can be ensured even after the safety fuse 18 has been triggered.
- the thermally insulating material reduces a thermal conductivity of the washer 1, so that heat input from a heat source outside the housing 4 via the washer 1 into the energy storage module 3 can at least be reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Inorganic Chemistry (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021124154.5A DE102021124154A1 (de) | 2021-09-17 | 2021-09-17 | Unterlegscheibe für einen elektrischen Energiespeicher, elektrischer Energiespeicher, Anordnung sowie Kraftfahrzeug |
| PCT/EP2022/072396 WO2023041256A1 (de) | 2021-09-17 | 2022-08-10 | Unterlegscheibe für einen elektrischen energiespeicher, elektrischer energiespeicher, anordnung sowie kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4402744A1 true EP4402744A1 (de) | 2024-07-24 |
Family
ID=83193560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22765034.8A Pending EP4402744A1 (de) | 2021-09-17 | 2022-08-10 | Unterlegscheibe für einen elektrischen energiespeicher, elektrischer energiespeicher, anordnung sowie kraftfahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250128590A1 (de) |
| EP (1) | EP4402744A1 (de) |
| CN (1) | CN117461195A (de) |
| DE (1) | DE102021124154A1 (de) |
| WO (1) | WO2023041256A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022130445A1 (de) * | 2022-11-17 | 2024-05-23 | Elringklinger Ag | Korrosionsschutzeinrichtung und Zelle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8454290B2 (en) * | 2009-03-04 | 2013-06-04 | Illinois Tool Works Inc. | Bushing assembly |
| DE102012211180A1 (de) * | 2012-06-28 | 2014-04-03 | Bayerische Motoren Werke Aktiengesellschaft | Energiespeichermodul aus mehreren prismatischen Speicherzellen |
| TWI628688B (zh) | 2012-08-31 | 2018-07-01 | 太谷電子日本合同公司 | 保護元件、電氣裝置、2次電池單元及墊圈 |
| DE102014216407A1 (de) * | 2014-08-19 | 2016-02-25 | Robert Bosch Gmbh | Aufnahme für ein Batteriemodul und Batteriemodul aufweisend eine derartige Aufnahme |
| JP6705719B2 (ja) * | 2016-08-26 | 2020-06-03 | トヨタ自動車株式会社 | ワッシャ付ネジ |
| EP3522253B1 (de) * | 2018-01-31 | 2020-05-13 | Samsung SDI Co., Ltd. | Befestigungselement für ein batteriepaket eines fahrzeugs |
| CN111106275B (zh) | 2018-11-02 | 2022-01-11 | 宁德时代新能源科技股份有限公司 | 一种电池包 |
| US11162526B2 (en) * | 2019-08-23 | 2021-11-02 | Guangzhe Enterprise Co., Ltd. | Grooved washer |
-
2021
- 2021-09-17 DE DE102021124154.5A patent/DE102021124154A1/de active Pending
-
2022
- 2022-08-10 WO PCT/EP2022/072396 patent/WO2023041256A1/de not_active Ceased
- 2022-08-10 EP EP22765034.8A patent/EP4402744A1/de active Pending
- 2022-08-10 US US18/685,015 patent/US20250128590A1/en active Pending
- 2022-08-10 CN CN202280041137.4A patent/CN117461195A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250128590A1 (en) | 2025-04-24 |
| DE102021124154A1 (de) | 2023-03-23 |
| WO2023041256A1 (de) | 2023-03-23 |
| CN117461195A (zh) | 2024-01-26 |
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