WO2023217482A1 - Tragvorrichtung für eine akkumulatorkomponente mit schutzleiste - Google Patents
Tragvorrichtung für eine akkumulatorkomponente mit schutzleiste Download PDFInfo
- Publication number
- WO2023217482A1 WO2023217482A1 PCT/EP2023/059658 EP2023059658W WO2023217482A1 WO 2023217482 A1 WO2023217482 A1 WO 2023217482A1 EP 2023059658 W EP2023059658 W EP 2023059658W WO 2023217482 A1 WO2023217482 A1 WO 2023217482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accumulator
- strip
- cell module
- frame
- carrying device
- 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.)
- Ceased
Links
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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
-
- 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
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/358—External gas exhaust passages located on the battery cover or case
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
- H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
-
- 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
- the invention relates to a carrying device for at least one accumulator component of a traction accumulator, which is designed to hold the at least one accumulator component vertically above and horizontally only partially overlapping with at least one cell module of the traction accumulator in an accumulator housing of the traction accumulator.
- the invention also relates to a traction accumulator and a motor vehicle.
- traction batteries for electrically driven motor vehicles, which can be designed, for example, as high-voltage energy storage devices.
- traction accumulators usually have a large number of accumulator components, for example cell modules and control devices, which are arranged in a battery housing of the traction accumulator.
- the cell modules have a large number of cells, which in turn have degassing elements for releasing faulty hot gas from a cell housing of the cells.
- the degassing elements can be arranged, for example, on cell housing covers of the cell housings, which form an upper side of the cell module. The top side of the cell module thus has a degassing area formed from the degassing elements of the cells.
- a further accumulator component is arranged in the vertical direction above such a cell module, then in the event of a fault, this accumulator component is exposed to its hot gas in at least one cell of the cell module arranged underneath.
- a stream of particles that is transported through the hot gas can lead to mechanical stress on the accumulator component. Accumulations of these particles can also reduce clearance and creepage distances and thus increase the risk of short circuits in the accumulator component. It is the object of the present invention to protect accumulator components of a traction accumulator of a motor vehicle from the negative effects of a hot gas outlet in a simple and reliable manner.
- a carrying device for at least one accumulator component of a traction accumulator is designed to hold the at least one accumulator component vertically above and horizontally only partially overlapping with at least one cell module of the traction accumulator in an accumulator housing of the traction accumulator.
- the carrying device comprises a holding frame for receiving the battery component and for partially overlapping arrangement with a top side of the at least one cell module horizontally offset from a degassing area of the at least one cell module located on the top side.
- the carrying device includes a hot gas capture device. This hot gas capture device comprises at least one protective strip attached to the holding frame, protruding from an outside of a frame strip of the holding frame, i.e.
- the at least one protective strip is designed to collect hot gas emerging from the degassing area of at least one cell of the cell module and to keep it away from the at least one accumulator component.
- the invention also relates to a traction accumulator for a motor vehicle.
- the traction accumulator comprises at least one cell module having a plurality of cells, with a degassing area with degassing elements of the cells for releasing a hot gas from a cell housing of the cells being located on an upper side of the cell module.
- the traction accumulator has at least one accumulator component and a carrying device according to the invention, wherein the at least one accumulator component is arranged in the holding frame and is arranged partially overlapping with the top of the cell module, horizontally offset from the degassing area.
- the at least one protective strip of the hot gas capture device is arranged vertically at a distance from and horizontally overlapping with the degassing area and thus covers the degassing area.
- the traction accumulator is in particular a high-voltage energy storage device.
- the cells of the cell module of the traction accumulator are designed as prismatic cells, each of which has a flat cuboid cell housing.
- the at least one cell module is designed as a cell stack made of the prismatic cells stacked in the stacking direction.
- the stacking direction can, for example, correspond to a transverse direction of the vehicle in the arranged state of the traction accumulator in the motor vehicle.
- the cell housings of the cells have respective degassing elements, for example bursting membranes, which form the degassing area on the top of the cell module.
- this degassing area is strip-shaped and extends along the stack direction.
- the traction accumulator is designed to have multiple levels and has at least one cell module arranged in a first level or a first floor in the accumulator housing and at least one accumulator component, which is arranged in a second level lying above it vertically or in the vertical direction.
- the at least one cell module can be arranged, for example, on a bottom region of a lower housing part of the battery housing.
- the at least one accumulator component is in particular a further cell module.
- the at least one accumulator component can also be a control device, for example.
- the at least one accumulator component is arranged in the listening direction above and horizontally transverse to the stacking direction, for example along a vehicle longitudinal direction, offset from the at least one cell module, so that a bottom side of the battery component and the top side of the cell module only partially overlap.
- the accumulator component does not overlap with the degassing area and is therefore arranged horizontally away from the degassing area.
- the degassing area therefore runs below and next to the accumulator component.
- the carrying device is provided to hold the accumulator component in the second level or in the second floor. This has the holding frame, which surrounds or encloses the accumulator component.
- the holding frame is in particular designed to be bottomless, so that the underside of the accumulator component is exposed.
- the holding frame can, for example, be attached to a housing part of the battery housing, for example the lower housing part, by means of base-like supporting elements of the carrying device.
- the holding frame can be in the form of a strip Retaining struts of the battery housing can be attached, to which the at least one cell module of the first level can also be attached.
- the holding frame is preferably designed as a cast aluminum structure.
- the holding frame has in particular two frame strips extending in the stacking direction and spaced apart from one another transversely to the stacking direction, which form long sides of the rectangular holding frame, and two frame strips extending transversely to the stacking direction and spaced apart from one another in the stacking direction, which form short sides of the holding frame.
- the short-sided frame strips in particular face the side walls of the battery housing.
- One of the long-sided frame strips overlaps the top of the cell module and is therefore arranged adjacent to the degassing area.
- the carrying device In order to prevent the hot gas from rising unhindered in the direction of the accumulator component and damaging it, the carrying device has the hot gas catching device, or a hot gas catcher for short.
- the hot gas catcher has at least one protective strip attached to the holding frame.
- the protective strip is in particular designed as a stamped, bent sheet metal part, for example made of sheet steel.
- the at least one protective strip stands essentially horizontally, i.e.
- the at least one protective strip at least partially absorbs the rising hot gas and reduces, in particular prevents, heat and particle entry into the accumulator component. As a result, thermal and mechanical loads on the accumulator component and short circuits on the accumulator component can be advantageously prevented.
- the at least one protective strip is attached to the holding frame by means of screws.
- the holding frame has, for example, horizontally projecting tabs with through openings through which a screw can be passed.
- the at least one protective strip can have rivet nuts into which the Screws are screwed in so that the at least one protective strip is attached hanging to the holding frame.
- the at least one protective strip is designed to guide the hot gas along the frame strip in the direction of an end face of the protective strip arranged in the area of one end of the frame strip and thus to discharge it laterally on the carrying device.
- the at least one protective strip for guiding the hot gas along the frame strip is designed in the shape of a U-profile. Due to the U-shaped design of the at least one protective strip, this reduces the spread of the hot gas in the vertical direction and transversely to the direction of extension of the frame strip and thus prevents an uncontrolled spread of the hot gas in the interior of the accumulator housing. Rather, the at least one U-shaped protective strip forms a degassing channel oriented along the frame strip in the direction of at least one side wall of the accumulator housing.
- the carrying device has two protective strips arranged at a distance from one another on the frame strip of the holding frame, which are designed to direct the hot gas along the frame strip in the direction of opposite ends of the frame strip, with end faces of the protective strips arranged in the area of the ends of the frame strips are open and facing end faces of the protective strips each have a cover.
- Each protective strip therefore guides the hot gas towards one end of the frame strip, so that the hot gas is directed towards both side walls of the accumulator housing and is discharged on both sides of the support device.
- the invention also relates to an electrified motor vehicle with at least one traction battery according to the invention.
- the motor vehicle is designed in particular as a passenger car.
- Fig. 1 is a perspective view of a traction accumulator for a
- Fig. 2 is a longitudinal sectional view of the traction accumulator according to Fig. 1;
- FIG. 3 shows a cross-sectional view of the traction accumulator according to FIG. 1;
- Fig. 4 is a perspective view of a carrying device
- Fig. 1 shows a perspective view of a traction battery 1 for an electric or hybrid vehicle.
- the traction accumulator 1 has an accumulator housing 2, of which only a trough-shaped lower housing part 3 or a housing base is shown here.
- an upper housing part or a housing cover can be placed on the lower housing part 3.
- the lower housing part 3 can be attached to a body of the motor vehicle so that the body closes off the battery housing 2.
- cell modules 4 are arranged in a first, lower level on a floor area 5 of the lower housing part 3, of which only one cell module 4 is shown here.
- the lower housing part 3 has two longitudinal struts 6 spaced apart in the vehicle transverse direction Q, which here also form side walls of the battery housing 2, and a plurality of cross struts 7 spaced apart in the vehicle longitudinal direction L, to which cell module frames of the cell modules 4, not shown here, are attached for holding the cell modules 4 in the battery housing 2 can be.
- the traction accumulator 1 also has at least one accumulator component 8, which, as shown in the sectional views of the traction accumulator 1 in FIGS. 2 and 3, is arranged vertically in the vertical direction H above the first level in a second, upper level.
- the accumulator component 8 is designed here as a further cell module 4'.
- the traction accumulator 1 has a carrying device 9, which has a bottomless holding frame 10 for receiving the accumulator component 8.
- the carrying device 9 is shown in a perspective view in Fig. 4.
- the rectangular holding frame 10 has a plurality of frame strips 11a, 11b, 12a, 12b, the frame strips 11a, 11b forming long sides of the holding frame 10, which here extend in the vehicle transverse direction Q, and the frame strips 12a, 12b forming short sides of the holding frame 10, which extend here in the vehicle longitudinal direction L.
- the carrying device 10 can also have base-like support elements 13, which are fastened, for example screwed, to fastening tabs 14 of the holding frame 10 and the lower housing part 3, for example to the longitudinal struts 6 and / or cross struts 7, for the elevated positioning of the holding frame 10 relative to the cell module 4.
- the accumulator component 8 is positioned relative to the cell module 4 by means of the carrying device 9 in such a way that it is arranged vertically, i.e. in the vertical direction H above, and horizontally, here along the vehicle longitudinal direction L, offset from the cell module 4. As a result, the accumulator component 8 only partially overlaps with an upper side 15 of the cell module 4.
- the cell module 4 has a large number of, here prismatic, cells, the degassing elements of which form a degassing area 16 on the upper side 15 of the cell module 4.
- the degassing area 16 is not covered by the accumulator component 8 arranged above it.
- the accumulator component 8 is therefore arranged away from or next to the degassing area 16.
- the carrying device 9 has a hot gas collecting device 17, which is designed to collect and discharge the hot gas before it reaches the accumulator component 8.
- the hot gas capture device 17 here has two protective strips 18, which are arranged at a distance from one another on the frame strip 11a and protrude or cantilever out on an outer side 19 of the frame strip 11a in the longitudinal direction L. This makes them Protective strips 18 are arranged in the vertical direction H in alignment with the degassing area 16 and thus cover or cover it at least in some areas. The protective strips 18 are therefore arranged in an intermediate level between the first and second levels.
- the protective strips 18 are designed as U-shaped protective plates, which have a cover area 20 that overlaps the degassing area 16 to prevent vertical spread of the hot gas and two side areas 21 to prevent horizontal spread of the hot gas transversely to an extension direction of the protective strips 18 in the vehicle's longitudinal direction L.
- the protective strips 18 each have a cover 23 on facing inner end faces 22a. This prevents the hot gas collected in the protective strip 18 from exiting the protective strips 18 via the inner end faces 22a and entering the interior of the accumulator housing 2.
- the protective strips 18 also have rivet nuts 24, via which the protective strips 18 are attached to the holding frame 10 in a hanging manner using screws 25.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380022267.8A CN118715648A (zh) | 2022-05-09 | 2023-04-13 | 具有保护板条的用于蓄电池部件的支承装置 |
| US18/854,420 US20250249761A1 (en) | 2022-05-09 | 2023-04-13 | Support Device for an Accumulator Component With Protective Strip |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022111451.1 | 2022-05-09 | ||
| DE102022111451.1A DE102022111451A1 (de) | 2022-05-09 | 2022-05-09 | Tragvorrichtung für eine Akkumulatorkomponente mit Schutzleiste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023217482A1 true WO2023217482A1 (de) | 2023-11-16 |
Family
ID=86226354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/059658 Ceased WO2023217482A1 (de) | 2022-05-09 | 2023-04-13 | Tragvorrichtung für eine akkumulatorkomponente mit schutzleiste |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250249761A1 (de) |
| CN (1) | CN118715648A (de) |
| DE (1) | DE102022111451A1 (de) |
| WO (1) | WO2023217482A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102941555B1 (ko) | 2024-03-21 | 2026-03-19 | 도요타 지도샤(주) | 전원 장치 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020106780A1 (de) * | 2020-03-12 | 2021-09-16 | Bayerische Motoren Werke Aktiengesellschaft | Batterie mit Modulhalterung zum Aufnehmen von Heißgas sowie Kraftfahrzeug |
| DE102020115132A1 (de) * | 2020-06-08 | 2021-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Baugruppe für eine Traktionsbatterie mit Schutzeinheit, Traktionsbatterie sowie Kraftfahrzeug |
-
2022
- 2022-05-09 DE DE102022111451.1A patent/DE102022111451A1/de active Pending
-
2023
- 2023-04-13 US US18/854,420 patent/US20250249761A1/en active Pending
- 2023-04-13 WO PCT/EP2023/059658 patent/WO2023217482A1/de not_active Ceased
- 2023-04-13 CN CN202380022267.8A patent/CN118715648A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020106780A1 (de) * | 2020-03-12 | 2021-09-16 | Bayerische Motoren Werke Aktiengesellschaft | Batterie mit Modulhalterung zum Aufnehmen von Heißgas sowie Kraftfahrzeug |
| DE102020115132A1 (de) * | 2020-06-08 | 2021-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Baugruppe für eine Traktionsbatterie mit Schutzeinheit, Traktionsbatterie sowie Kraftfahrzeug |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102941555B1 (ko) | 2024-03-21 | 2026-03-19 | 도요타 지도샤(주) | 전원 장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022111451A1 (de) | 2023-11-09 |
| US20250249761A1 (en) | 2025-08-07 |
| CN118715648A (zh) | 2024-09-27 |
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