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WO2022007482A1 - 车辆及其电池包 - Google Patents

车辆及其电池包 Download PDF

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Publication number
WO2022007482A1
WO2022007482A1 PCT/CN2021/090550 CN2021090550W WO2022007482A1 WO 2022007482 A1 WO2022007482 A1 WO 2022007482A1 CN 2021090550 W CN2021090550 W CN 2021090550W WO 2022007482 A1 WO2022007482 A1 WO 2022007482A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
battery pack
pull rod
tray
pull
Prior art date
Application number
PCT/CN2021/090550
Other languages
English (en)
French (fr)
Inventor
王欢欢
刘凯
黄木清
赖庆
Original Assignee
比亚迪股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to EP21838203.4A priority Critical patent/EP4181291A1/en
Priority to JP2023501383A priority patent/JP2023533335A/ja
Priority to KR1020237003765A priority patent/KR20230031943A/ko
Publication of WO2022007482A1 publication Critical patent/WO2022007482A1/zh
Priority to US18/150,604 priority patent/US20230146128A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/204—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/20—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
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • 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
    • H01M50/242—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 against vibrations, collision impact or swelling
    • 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 present disclosure relates to the technical field of batteries, and in particular, to a vehicle and a battery pack thereof.
  • the plurality of cells in the existing battery pack are fixedly connected by adhesive.
  • the adhesive may fail and cause relative displacement between the cells, which may lead to a potential safety hazard for the battery pack.
  • the purpose of the present disclosure is to provide a vehicle and a battery pack thereof to solve the technical problem that when the battery pack is vibrated and impacted, the relative displacement between the cells may be caused by the failure of the adhesive, which may lead to hidden safety hazards of the battery pack.
  • the present disclosure provides a battery pack, comprising a tray, a pressure plate and a plurality of battery cells arranged in an array, wherein a receiving space is formed in the tray, a plurality of the battery cells are received in the receiving space, and the pressure plate is pressed against On the plurality of battery cells, opposite ends of the pressing plate are fixed on the tray.
  • the battery pack further includes a pull plate fixed on the tray, opposite ends of the pressure plate include first ends, the first end of the pressure plate is connected to the pull plate, and the first end of the pressure plate is connected to the pull plate. The end is fixed on the tray by the pull plate.
  • the battery pack further includes a first pull rod fixed on the tray, the opposite ends of the pressing plate further include second ends, the second ends are arranged opposite to the first ends, and the pressing plate has a second end. The second end is connected with the first pull rod, and the second end of the pressing plate is fixed on the tray through the first pull rod.
  • the tray includes a bottom plate and a side beam arranged on the bottom plate, the bottom plate and the side beam enclose the accommodation space, the side beam is provided with an opening, and the side beam is in the opening
  • the side beam is in the opening
  • the side beams are fixedly connected.
  • the battery pack further includes a second pull rod
  • the bottom plate is provided with a plurality of intermediate beams arranged at intervals
  • each of the intermediate beams is provided with the second pull rod
  • the second pull rod passes through the plurality of intermediate beams.
  • the gap between each of the battery cells is connected with the pressure plate.
  • the battery pack further includes a limit block, and the limit block is arranged between two adjacent battery cells, so that a gap is formed between the two adjacent battery cells; along the battery cells
  • the gap includes a middle part and edge parts located on both sides of the middle part, the limit block is located in the edge part, and the second pull rod passes through the middle part and is connected to the pressing plate .
  • the cross-sectional area of the pull plate is larger than the cross-sectional area of the first pull rod; the cross-sectional area of the pull plate is greater than the cross-sectional area of the second pull rod.
  • each of the battery cells includes a top surface, and the top surface is provided with positive poles and negative poles arranged at intervals, and the top surfaces of the plurality of battery cores form a mounting surface;
  • the battery pack further includes a top cover and an insulating cover, the top cover is mounted on the mounting surface, and the insulating cover is mounted on the top cover.
  • the present disclosure provides a vehicle including the aforementioned battery pack.
  • the pressing plate is arranged to be pressed on the plurality of cells, the opposite ends of the pressing plate are fixed on the tray, and the pressing plate fixes the plurality of cells in the tray, even if the battery pack is vibrated and impacted, the electric There will be no relative displacement between the cores, which will not cause a safety hazard to the battery pack. Moreover, the pressing plate is pressed against the plurality of cells, which can also avoid the bulging of the cells during operation.
  • FIG. 1 is a schematic structural diagram of a battery pack provided by an embodiment of the present disclosure
  • Fig. 2 is the exploded structure schematic diagram of the battery pack in Fig. 1;
  • Fig. 3 is another exploded structure schematic diagram of the battery pack in Fig. 1;
  • FIG. 4 is a schematic structural diagram of the battery pack covering the front cover and the sealing cover in FIG. 1;
  • FIG. 5 is a schematic diagram of the relationship between a battery pack and a vehicle provided by an embodiment of the present disclosure.
  • the present disclosure provides a vehicle 1000 including a battery pack 100 .
  • the battery pack 100 will be described as follows.
  • the battery pack 100 includes a tray 10 , a pressure plate 20 and a plurality of battery cells 30 arranged in an array.
  • a receiving space 40 is formed in the tray 10 , the plurality of battery cells 30 are received in the receiving space 40 , and the pressure plate 20 is pressed against the plurality of battery cells. 30 , and opposite ends of the pressing plate 20 are fixed on the tray 10 .
  • the pressing plate 20 by arranging the pressing plate 20 to press against the plurality of cells 30, the opposite ends of the pressing plate 20 are fixed on the tray 10, and the pressing plate 20 fixes the plurality of cells 30 in the tray 10, even if the battery pack 100 occurs Vibration and impact will not cause relative displacement between the battery cells 30 , which will not cause a safety hazard to the battery pack 100 . Moreover, the pressing plate 20 is pressed on the plurality of battery cells 30, so as to avoid bulging of the battery cells 30 during operation.
  • each cell 30 includes two first side surfaces 301 with a larger area, two second side surfaces 302 with a smaller area, a top surface 303 and a bottom surface, and the area of the first side surface 301 is larger than that of the second side surface 302 area, the two first side surfaces 301 are arranged oppositely, the two second side surfaces 302 are arranged oppositely, the top surface 303 and the bottom surface are arranged oppositely, and the two first side surfaces 301 and the two second side surfaces 302 are alternately connected to form the battery cell 30.
  • the side of the cell 30 is connected to the top surface 303 and the bottom surface.
  • a positive pole 304 and a negative pole 305 are arranged on the top surface 303 of each cell 30 at intervals.
  • the pressing plate 20 is pressed against the first side 301 of the cell 30 , and the pressing of the pressing plate 20 on the first side 301 of the cell 30 prevents the first side 301 of the cell 30 from expanding.
  • the battery pack 100 further includes a pull plate 50 fixed on the tray 10 , opposite ends of the pressure plate 20 include first ends 201 , the first end 201 of the pressure plate 20 is connected to the pull plate 50 , and the first end 201 of the pressure plate 20 passes through the pull plate 50 is fixed on the tray 10 .
  • the pulling plate 50 includes a third end 501 and a fourth end 502 disposed opposite to each other, the third end 501 is connected to the first end 201 , and the fourth end 502 is fixedly connected to the tray 10 .
  • the first end 201 of the pressing plate 20 is detachably connected or fixedly connected to the third end 501 of the pulling plate 50 , and the fourth end 502 of the pulling plate 50 is fixedly connected to the tray 10 . Therefore, in the present disclosure, the first end 201 of the pressing plate 20 is fixed on the tray 10 through the setting of the pulling plate 50 , so as to realize the pressing of the pressing plate 20 on the cell 30 .
  • the pulling plate 50 is attached to the battery cell 30 , and the pulling plate 50 presses the battery cell 30 . In one embodiment, the pulling plate 50 is pressed against the second side surface 302 of the cell 30 close to the first end 201 of the pressing plate 20 . Therefore, the pulling plate 50 is pressed against the cells 30 not only to further avoid the relative displacement between the cells 30, but also to prevent the second side surface 302 of the cells 30 from expanding.
  • the battery pack 100 further includes a first pull rod 60 fixed on the tray 10 , opposite ends of the pressure plate 20 further include second ends 202 , the second ends 202 are arranged opposite to the first end 201 , and the second ends 202 of the pressure plate 20 are connected to the first end 201 .
  • a pull rod 60 is connected, and the second end 202 of the pressing plate 20 is fixed on the tray 10 through the first pull rod 60 .
  • the first pull rod 60 includes a fifth end 601 and a sixth end 602 disposed opposite to each other, the fifth end 601 is connected to the second end 202 , and the sixth end 602 is fixedly connected to the tray 10 .
  • the second end 202 of the pressing plate 20 is fixed on the tray 10 through the arrangement of the first pulling rod 60 , so as to realize the pressing of the pressing plate 20 to the cell 30 . It can be understood that the second end 202 of the pressing plate 20 is detachably connected to the fifth end 601 of the first pull rod 60 , or is fixedly connected.
  • the first pull rod 60 is attached to the cell 30 , and the first pull rod 60 presses the cell 30 . In one embodiment, the first pull rod 60 is pressed against the second side surface 302 of the battery cell 30 close to the second end 202 of the pressing plate 20 . The first tie rod 60 is pressed against the cells 30 not only to further avoid the relative displacement between the cells 30, but also to prevent the second side surface 302 of the cells 30 from expanding.
  • the tray 10 includes a bottom plate 101, a side beam 102 arranged on the bottom plate 101, the bottom plate 101 and the side beam 102 enclose a receiving space 40, the side beam 102 is provided with an opening 103, and the side beam 102 extends in the opening 103 with a convex portion 104,
  • the pull plate 50 is fixed on the bottom plate 101 , and the convex portion 104 is fixedly connected with the pull plate 50 ;
  • the first pull rod 60 is fixed on the bottom plate 101 , and the first pull rod 60 is fixedly connected with the side beam 102 .
  • the pull plate 50 is not only fixedly connected with the bottom plate 101, but also fixedly connected with the convex portion 104 on the side beam 102, and the connection stability of the pull plate 50 and the tray 10 is good; the first pull rod 60 is not only fixedly connected with the bottom plate 101, Moreover, it is also fixedly connected with the side beam 102 , and the connection stability between the first pull rod 60 and the tray 10 is good. Therefore, when the pressing plate 20 is fixedly connected to the tray 10 through the pulling plate 50 and the first pulling rod 60 , the pressing plate 20 can be fixedly connected to the tray 10 more stably, so that the battery cells 30 can be more firmly pressed into the tray 10 , to avoid the displacement between the cells 30 and also avoid the bulging of the cells 30 . It can be understood that the pull plate 50 can also be fixed on the bottom plate 101 through the middle beam 80 disposed near the opening 103 , and the first pull rod 60 can be fixed on the bottom plate 101 through the middle beam 80 disposed near the side beam 102 superior.
  • the cross-sectional area of the pulling plate 50 is larger than the cross-sectional area of the first pulling rod 60 ; the cross-sectional area of the pulling plate 50 is larger than the cross-sectional area of the second pulling rod 70 .
  • the space between the battery cell 30 and the side beam 102 provided with the opening 103 is larger, and the larger space can accommodate a larger area of the pull plate 50 , and the space between the battery cell 30 and the remaining side beams 102 The space is small, and the small space is used to accommodate the first pull rod 60 with a small area.
  • the larger area of the pull plate 50 increases the stability of the connection between the pull plate 50 and the tray 10 , and the smaller area of the first pull rod 60 is not only suitable for a smaller space, but also sufficient to fix the pressing plate 20 on the tray 10 , so that the pressing plate 20 presses the battery cell 30 .
  • the convex portion 104 has a larger area, and the connection between the convex portion 104 with a larger area and the pull plate 50 with a larger area can make the connection between the pull plate 50 and the tray 10 more stable.
  • the convex portion 104 includes a first connecting surface 104a facing the pull plate 50
  • the pull plate 50 includes a second connecting surface 50a facing the convex portion 104
  • the area of the first connecting surface 104a is larger than that of the second connecting surface 50a area.
  • the battery pack 100 further includes a second pull rod 70 , the bottom plate 101 is provided with a plurality of intermediate beams 80 arranged at intervals, each intermediate beam 80 is provided with a second pull rod 70 , and the second pull rod 70 passes through the plurality of cells 30 .
  • the gap 110 between them is connected to the pressing plate 20 .
  • the arrangement of the plurality of middle beams 80 and the second tie rods 70 divides the accommodating space 40 into a plurality of subspaces, each subspace only needs to accommodate fewer cells 30, and the cells 30 in each subspace only need to be accommodated. Relative displacement is less likely to occur, and the second tie rods 70 on each intermediate beam 80 are connected to the pressing plate 20, and the pressing plate 20 can better press the cells 30 in each subspace.
  • the arrangement of the plurality of middle beams 80 and the arrangement of the second tie rods 70 on each middle beam 80 can further avoid the expansion of the cells 30 and the relative displacement between the cells 30.
  • the second pull rod 70 is detachably connected or fixedly connected to the pressing plate 20 .
  • the pallet 10 and the pull plate 50, the first pull rod 60 and the second pull rod 70 can be fixed by welding.
  • the pull plate 50 and the convex part 104 and the bottom plate 101 can be fixed by welding.
  • the first pull rod 60 and the side beam 102 and the bottom plate can be fixed by welding.
  • 101 can be fixed by welding
  • the second tie rod 70 and the middle beam 80 can be fixed by welding.
  • the battery pack 100 further includes a limit block 90 , and the limit block 90 is arranged between two adjacent cells 30 to form a gap 110 between the two adjacent cells 30 ; along the extending direction of the cells 30 , the gap 110 includes a middle portion 120 and edge portions 130 on both sides of the middle portion 120 , the limiting block 90 is located in the edge portion 130 , and the second pull rod 70 passes through the middle portion 120 to connect with the pressing plate 20 .
  • the length of the limiting block 90 is smaller than the length of the battery cells 30 .
  • the limiting block 90 When the limiting block 90 is arranged in the gap 110 between adjacent cells 30 , the limiting The block 90 can be provided in the edge portion 130 , and the middle portion 120 of the gap 110 can be used for the second pull rod 70 to pass through, so that the second pull rod 70 is connected to the pressing plate 20 through the middle portion 120 of the gap 110 . Therefore, the present disclosure can form a gap 110 between adjacent cells 30 through the arrangement of the limiting block 90 , so that the second pull rod 70 can be connected to the pressing plate 20 through the gap 110 . It can be understood that a gap 110 is provided between every two adjacent cells 30, or a gap 110 is provided between a plurality of cells 30, or a plurality of cells 30 are connected to form a battery pack. There is a gap 110 therebetween. There are two edge portions 130 of each gap 110 , and limiting blocks 90 are provided in both edge portions 130 .
  • the pressing plate 20 is provided with a plurality of recesses 203 arranged at intervals.
  • the recesses 203 are connected by a connecting plate 204.
  • the recesses 203 are used to connect with the pull plate 50 and the first pull rod 60. At both ends, one end is connected to a pull plate 50 , and the other end is connected to a first pull rod 60 .
  • the middle portion of the bottom of the concave portion 203 is connected to the second pull rod 70 .
  • the arrangement of the plurality of pulling plates 50 , the plurality of first pulling rods 60 and the plurality of second pulling rods 70 makes the connection area between the pressure plate 20 and the pulling plate 50 larger, the connection area between the pressure plate 20 and the first pulling rod 60 is larger, and the pressure plate The connection area between 20 and the second pull rod 70 is relatively large, and the pressing plate 20 can be firmly pressed on the battery cell 30 . It can be understood that, one end of the plurality of pulling plates 50 facing the bottom plate 101 is connected, or, one end of the plurality of pulling plates 50 facing the bottom plate 101 is connected through the connecting part 260, and the connecting part 260 can be fixed on the convex part 104, or fixed on the bottom plate 101 on.
  • the connecting portion 260 connects the ends of each pull plate 50 , the area of the connecting portion 260 is large, and the arrangement of the connecting portion 260 further increases the stability of the connection between the pull plate 50 and the tray 10 .
  • the area of the first connecting surface 104a of the convex portion 104 is smaller than the area of the connecting portion 260 .
  • the top surfaces 303 of the plurality of cells 30 form the mounting surface 160; the battery pack 100 further includes a top cover plate 140 and an insulating cover 150, the top cover plate 140 is mounted on the mounting surface 160, and the insulating cover 150 is mounted on the top cover plate 140 on.
  • the side of the battery cell 30 near the top surface 303 is covered with a wrapping paper 170 , the wrapping paper 170 has a wider width, and the wrapping paper 170 extends out of the battery cell 30 toward the top surface 303 .
  • the present disclosure is provided with a top cover plate 140 on the mounting surface 160, the wrapping paper 170 extending out of the side of the cell 30 can be attached to the top cover plate 140, and the insulating cover 150 is installed on the top cover
  • the top cover plate 140 is arranged on the mounting surface 160.
  • the wrapping paper 170 can extend to the top cover plate 140, and the wrapping paper 170 will not be lifted and will not affect the
  • the insulating cover 150 solves the problem that the wrapping paper 170 needs to be folded at the top surface 303 of the cell 30, the edge of the wrapping paper 170 will warp, and the edge of the wrapping paper 170 will push up the insulating cover 150.
  • the insulating cover 150 and the battery core 30 The bonding area of the top surface 303 is insufficient, and the insulating cover 150 has a technical problem of the risk of falling off.
  • top cover 140 is provided with a snap
  • the insulating cover 150 is fixed to the top cover 140 by the snap
  • the connection between the top cover 140 and the insulating cover 150 is more reliable.
  • the surface of the cell 30 on which the positive pole 304 and the negative pole 305 are provided is the top surface 303 of the cell.
  • the battery pack 100 further includes a plurality of connecting sheets 180 and a flexible circuit board (FPC) 190 .
  • the insulating cover 150 is provided with a through hole 270 that is directly opposite to the positive pole 304 and the negative pole 305 of each cell 30 , and the positive pole 304 and the negative pole 305 of each cell 30 protrude into the In the through hole 270 , each connecting piece 180 is disposed on the surface of the insulating cover 150 facing away from the top cover 140 , and each connecting piece 180 is connected to the positive poles of two adjacent cells 30 located in the through hole 270 304 and negative pole 305.
  • a flexible circuit board (FPC) 190 is disposed in the gap 110 between the plurality of connection pieces 180 of the insulating cover 150 , and the flexible circuit board (FPC) 190 is connected with each connection piece 180 .
  • each connecting piece 180 may be connected to a flexible circuit board (FPC) 190 through an adapter 210 . Therefore, when the pressing plate 20 of the present disclosure compresses the plurality of cells 30, the pressing plate 20 fixes the cells 30, avoids relative displacement between the cells 30, and prevents the cells 30 from bulging during operation, thereby preventing the cells 30 from bulging. The tearing of the flexible circuit board (FPC) 190 by 30 and the tearing of the casing by the battery core 30 are avoided, for example, the tearing of the tray 10 is avoided.
  • the top cover plate 140 is also provided with a through hole 270 , the through hole 270 on the top cover plate 140 is correspondingly connected to the through hole 270 on the insulating cover 150 , and the positive pole 304 and the negative pole of the battery cell 30 are connected. After passing through the through hole 270 on the top cover plate 140 , 305 is located in the through hole 270 on the insulating cover 150 .
  • the battery pack 100 further includes a front cover 220 , a sealing cover 230 and a cooling liquid pipe 280 .
  • the front cover 220 is installed on the side of the tray 10 where the opening 103 is provided.
  • the sealing cover 230 is covered on the tray 10 to seal the plurality of cells 30 .
  • the cooling liquid pipe 280 is provided on the outer surface of the battery cell 30 for dissipating heat to the battery cell 30 , and the liquid inlet and the liquid outlet of the cooling liquid pipe 280 extend out of the battery pack 100 .
  • the tray 10 is connected to the pull plate 50, the first pull rod 60 and the second pull rod 70. If welding can be used, the bottom of the tray 10 and the surrounding area are pasted with insulating sheets, and glue is applied to the gaps of the insulating sheets to seal the cells 30. fixed in the tray 10 .
  • a limit block 90 is arranged between the cells 30 , and the battery, the liquid cooling tube, and the integrated wiring harness (including the insulating cover 150 , the FPC, and the connecting piece 180 ) are assembled and put into the tray 10 through a tooling.
  • the mounting pressure plate 20 , the pressure plate 20 and the first pull rod 60 , the second pull rod 70 and the pull plate 50 are respectively fixed by screws.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种车辆及其电池包，电池包包括托盘(10)、压板(20)以及多个阵列排布的电芯(30)，所述托盘(10)内形成有容纳空间(40)，多个所述电芯(30)收容在所述容纳空间(40)内，所述压板(20)压紧在所述多个电芯(30)上，且所述压板(20)的相对两端均固定在所述托盘(10)上。

Description

车辆及其电池包
相关申请的交叉引用
本公开要求比亚迪股份有限公司于2020年07月09日提交的、公开名称为“车辆及电池包”的、中国专利公开号“202010659620.1”的优先权。
技术领域
本公开涉及电池技术领域，特别涉及一种车辆及其电池包。
背景技术
现有电池包中的多个电芯之间通过粘胶固定连接，在电池包发生振动、冲击时，有可能导致粘胶失效引起电芯之间相对位移，这会导致电池包的安全隐患。
发明内容
本公开的目的在于提供一种车辆及其电池包，以解决电池包发生振动、冲击时，有可能导致粘胶失效引起电芯之间相对位移，可能会导致电池包安全隐患的技术问题。
本公开提供一种电池包，包括托盘、压板以及多个阵列排布的电芯，所述托盘内形成有容纳空间，多个所述电芯收容在所述容纳空间内，所述压板压紧在所述多个电芯上，且所述压板的相对两端均固定在所述托盘上。
其中，所述电池包还包括固定在所述托盘上的拉板，所述压板的相对两端包括第一端，所述压板的第一端与所述拉板连接，所述压板的第一端通过所述拉板固定在所述托盘上。
其中，所述电池包还包括固定在所述托盘上的第一拉杆，所述压板的相对两端还包括第二端，所述第二端与所述第一端相对设置，所述压板的第二端与所述第一拉杆连接，所述压板的第二端通过所述第一拉杆固定在所述托盘上。
其中，所述托盘包括底板、设于所述底板上的边梁，所述底板与所述边梁围成所述容纳空间，所述边梁上设有开口，所述边梁在所述开口内延伸有凸部，所述拉板固定在所述底板上，且所述凸部与所述拉板固定连接；所述第一拉杆固定在所述底板上，且所述第一拉杆与所述边梁固定连接。
其中，所述电池包还包括第二拉杆，所述底板上设有多个间隔设置的中间横梁，每个所述中间横梁上均设有所述第二拉杆，所述第二拉杆穿过多个所述电芯之间的间隙与所述压板连接。
其中，所述电池包还包括限位块，所述限位块设于相邻两个电芯之间，以使相邻的两个 所述电芯之间形成间隙；沿着所述电芯的延伸方向，所述间隙包括中间部分与位于所述中间部分两侧的边缘部分，所述限位块位于所述边缘部分内，所述第二拉杆穿过所述中间部分与所述压板连接。
其中，所述拉板的横截面积大于所述第一拉杆的横截面积；所述拉板的横截面积大于所述第二拉杆的横截面积。
其中，所述拉板为多个，所述第一拉杆为多个，每个所述横梁上的所述第二拉杆为多个。
其中，每个所述电芯包括顶面，所述顶面上设有间隔设置的正极柱与负极柱，多个所述电芯的顶面形成安装表面；
所述电池包还包括顶面盖板与绝缘罩，所述顶面盖板安装在所述安装表面上，所述绝缘罩安装在所述顶面盖板上。
本公开提供一种车辆，包括上述的电池包。
综上所述，本申请通过设置压板压紧在多个电芯上，压板的相对两端均固定在托盘上，压板将多个电芯固定在托盘内，即使电池包发生振动、冲击，电芯之间也不会相对位移，不会导致电池包的安全隐患。而且，压板压紧在多个电芯上，还可以避免电芯运行时发生的鼓胀。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例提供的电池包的结构示意图；
图2是图1中的电池包的分解结构示意图；
图3是图1中的电池包的另一种分解结构示意图；
图4是图1中的电池包盖合前面罩和密封罩的结构示意图；
图5本公开实施例提供的电池包与车辆的关系示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开提供一种车辆1000，包括电池包100。如下将介绍电池包100。
电池包100包括托盘10、压板20以及多个阵列排布的电芯30，托盘10内形成有容纳空间40，多个电芯30收容在容纳空间40内，压板20压紧在多个电芯30上，且压板20的相对两端均固定在托盘10上。
本公开中，通过设置压板20压紧在多个电芯30上，压板20的相对两端均固定在托盘10上，压板20将多个电芯30固定在托盘10内，即使电池包100发生振动、冲击，电芯30之间也不会发生相对位移，不会导致电池包100的安全隐患。而且，压板20压紧在多个电芯30上，还可以避免电芯30运行时发生的鼓胀。
可以理解的是，每个电芯30包括面积较大的两个第一侧面301、面积较小的两个第二侧面302、顶面303以及底面，第一侧面301的面积大于第二侧面302的面积，两个第一侧面301相对设置，两个第二侧面302相对设置，顶面303和底面相对设置，两个第一侧面301和两个第二侧面302交替连接以形成电芯30的侧面，电芯30的侧面连接顶面303和底面。每个电芯30的顶面303上设有间隔设置的正极柱304与负极柱305。
本公开中，压板20压紧在电芯30的第一侧面301上，压板20对电芯30的第一侧面301的压紧避免了电芯30的第一侧面301发生膨胀。
电池包100还包括固定在托盘10上的拉板50，压板20的相对两端包括第一端201，压板20的第一端201与拉板50连接，压板20的第一端201通过拉板50固定在托盘10上。在一个实施例中，拉板50包括相对设置的第三端501和第四端502，第三端501与第一端201连接，第四端502与托盘10固定连接。可以理解的是，压板20的第一端201与拉板50的第三端501可拆卸连接或者固定连接，拉板50的第四端502与托盘10固定连接。从而，本公开通过拉板50的设置将压板20的第一端201固定在托盘10上，进而实现压板20对电芯30的压紧。
在一个实施例中，拉板50与电芯30贴合，拉板50压紧电芯30。在一个实施例中，拉板50贴合压紧在电芯30靠近压板20的第一端201的第二侧面302上。从而，拉板50贴合压紧电芯30不仅可以进一步避免电芯30之间的相对位移，而且还可以避免电芯30的第二侧面302发生膨胀。
电池包100还包括固定在托盘10上的第一拉杆60，压板20的相对两端还包括第二端202，第二端202与第一端201相对设置，压板20的第二端202与第一拉杆60连接，压板20的第二端202通过第一拉杆60固定在托盘10上。在一个实施例中，第一拉杆60包括相对设置的第五端601和第六端602，第五端601与第二端202连接，第六端602与托盘10固定连接。从而，本公开通过第一拉杆60的设置将压板20的第二端202固定在托盘10上，进而实现压板20对电芯30的压紧。可以理解的是，压板20的第二端202与第一拉杆60 的第五端601可拆卸连接，或者固定连接。
在一个实施例中，第一拉杆60与电芯30贴合，第一拉杆60压紧电芯30。在一个实施例中，第一拉杆60贴合压紧在电芯30靠近压板20的第二端202的第二侧面302上。第一拉杆60贴合压紧电芯30不仅可以进一步避免电芯30之间的相对位移，而且还可以避免电芯30的第二侧面302发生膨胀。
托盘10包括底板101、设于底板101上的边梁102，底板101与边梁102围成容纳空间40，边梁102上设有开口103，边梁102在开口103内延伸有凸部104，拉板50固定在底板101上，且凸部104与拉板50固定连接；第一拉杆60固定在底板101上，且第一拉杆60与边梁102固定连接。从而，拉板50不仅与底板101固定连接，而且还与边梁102上的凸部104固定连接，拉板50与托盘10的连接稳定性较好；第一拉杆60不仅与底板101固定连接，而且还与边梁102固定连接，第一拉杆60与托盘10的连接稳定性较好。从而在压板20通过拉板50与第一拉杆60固定连接在托盘10上时，压板20就可以较稳固地固定连接在托盘10上，进而可以将电芯30较稳固地压紧在托盘10内，避免电芯30之间的位移，也可以避免电芯30的鼓胀。可以理解的是，拉板50也可以通过设于靠近开口103处的中间横梁80、固定在底板101上，第一拉杆60可以通过设于靠近边梁102处的中间横梁80、固定在底板101上。
在一个实施例中，拉板50的横截面积大于第一拉杆60的横截面积；拉板50的横截面积大于第二拉杆70的横截面积。在一个实施例中，电芯30与设有开口103的边梁102之间的空间较大，较大的空间可以容纳较大面积的拉板50，电芯30与其余边梁102之间的空间较小，较小的空间用于容纳较小面积的第一拉杆60。从而，较大面积的拉板50增加了拉板50与托盘10连接的稳定性，较小面积的第一拉杆60不仅可以适用于较小的空间，而且足够可以将压板20固定在托盘10上，以使得压板20压紧电芯30。可以理解的是，凸部104的面积较大，较大面积的凸部104与较大面积的拉板50的连接可以使得拉板50与托盘10连接的更加稳固。在一个实施例中，凸部104包括朝向拉板50的第一连接表面104a，拉板50包括朝向凸部104的第二连接表面50a，第一连接表面104a的面积大于第二连接表面50a的面积。
电池包100还包括第二拉杆70，底板101上设有多个间隔设置的中间横梁80，每个中间横梁80上均设有第二拉杆70，第二拉杆70穿过多个电芯30之间的间隙110与压板20连接。在一个实施例中，多个中间横梁80与第二拉杆70的设置将容纳空间40分为多个子空间，每个子空间内只需容纳较少的电芯30，每个子空间内的电芯30更不易发生相对位移，而且每个中间横梁80上的第二拉杆70均与压板20连接，压板20可以较好地压紧每个子空间内的电芯30。从而，多个中间横梁80的设置以及每个中间横梁80上的第二拉杆70的 设置可以进一步避免电芯30的膨胀以及避免电芯30之间的相对位移。可以理解的是，第二拉杆70与压板20可拆卸连接或者固定连接。托盘10与拉板50、第一拉杆60以及第二拉杆70的固定方式可以采用焊接，如拉板50与凸部104以及底板101均可以通过焊接固定，第一拉杆60与边梁102以及底板101均可以通过焊接固定，第二拉杆70与中间横梁80可以通过焊接固定。
电池包100还包括限位块90，限位块90设于相邻两个电芯30之间，以使相邻的两个电芯30之间形成间隙110；沿着电芯30的延伸方向，间隙110包括中间部分120与位于中间部分120两侧的边缘部分130，限位块90位于边缘部分130内，第二拉杆70穿过中间部分120与压板20连接。在一个实施例中，在电芯30的延伸方向上，限位块90的长度小于电芯30的长度，当限位块90设于相邻电芯30之间的间隙110内时，限位块90可以设于边缘部分130内，则间隙110的中间部分120可以用于第二拉杆70穿过，进而使得第二拉杆70穿过间隙110的中间部分120与压板20连接。从而，本公开通过限位块90的设置可以使得相邻的电芯30之间形成间隙110，方便于第二拉杆70穿过间隙110与压板20连接。可以理解的是，每两个相邻的电芯30之间均设有间隙110，或者多个电芯30之间设有一个间隙110，或者多个电芯30连接形成电池组，电池组之间设有一个间隙110。每个间隙110的边缘部分130为两个，两个边缘部分130内均设有限位块90。
拉板50为多个，第一拉杆60为多个，每个中间横梁80上的第二拉杆70为多个。在一个实施例中，压板20上设有多个间隔设置的凹部203，凹部203之间通过连接板204连接，凹部203用于与拉板50以及第一拉杆60连接，一个凹部203的底部的两端，其中一端连接一个拉板50，另一端连接一个第一拉杆60。凹部203的底部的中间部位连接第二拉杆70。从而，多个拉板50、多个第一拉杆60以及多个第二拉杆70的设置使得压板20与拉板50的连接面积较大，压板20与第一拉杆60的连接面积较大，压板20与第二拉杆70的连接面积较大，压板20可以稳固地压紧在电芯30上。可以理解的是，多个拉板50朝向底板101的一端连接，或者，多个拉板50朝向底板101的一端通过连接部260连接，连接部260可以固定在凸部104上，或固定在底板101上。由于连接部260连接各拉板50的端部，连接部260的面积较大，连接部260的设置更是增加了拉板50与托盘10之间连接的稳定性。在一个实施例中，凸部104的第一连接表面104a的面积小于连接部260的面积。
在一个具体的实施例中，凹部203为三个，拉板50为三个，第一拉杆60为三个，每个中间横梁80上的第二拉杆70也为三个。
多个电芯30的顶面303形成安装表面160；电池包100还包括顶面盖板140与绝缘罩150，顶面盖板140安装在安装表面160上，绝缘罩150安装在顶面盖板140上。在一个实施例中，在电芯30侧面靠近顶面303的位置包覆有包膜纸170，包膜纸170的宽度较宽， 包膜纸170朝向顶面303的方向延伸出电芯30的侧面之外，本公开在安装表面160上装设有顶面盖板140，延伸出电芯30侧面的包膜纸170可以贴合在顶面盖板140上，在绝缘罩150安装在顶面盖板140上时，包膜纸170就不会延伸到绝缘罩150上，包膜纸170的边缘不会顶起绝缘罩150，安装方便，后期使用时绝缘罩150也不会脱落。从而，本公开在安装表面160上设置顶面盖板140，在电芯30包膜时，包膜纸170可以延伸至顶面盖板140，包膜纸170不会翘起，不会影响到绝缘罩150，解决了包膜纸170在电芯30顶面303处需折边，包膜纸170边缘会起翘，包膜纸170边缘会顶起绝缘罩150，绝缘罩150与电芯30顶面303粘接面积不足，绝缘罩150有脱落风险的技术问题。可以理解的是，顶面盖板140上设有卡扣，绝缘罩150通过卡扣与顶面盖板140固定，顶面盖板140与绝缘罩150连接更可靠。电芯30的设有正极柱304和负极柱305的表面为电芯的顶面303。
电池包100还包括多个连接片180与柔性电路板(FPC)190。在一个实施例中，绝缘罩150上设有与每个电芯30的正极柱304与负极柱305均正对的通孔270，每个电芯30的正极柱304与负极柱305伸入在通孔270内，每个连接片180设于绝缘罩150背向顶面盖板140的表面上，且每个连接片180的连接位于通孔270内的相邻两个电芯30的正极柱304和负极柱305。柔性电路板(FPC)190设在绝缘罩150的多个连接片180之间的间隙110内，柔性电路板(FPC)190与每个连接片180均连接。在一个实施例中，每个连接片180可以通过转接件210与柔性电路板(FPC)190连接。从而，在本公开的压板20压紧多个电芯30时，压板20将电芯30固定，避免电芯30之间的相对位移，且避免电芯30运行时发生鼓胀，进而避免了电芯30对柔性电路板(FPC)190的撕裂，以及避免了电芯30对外壳的撕裂，例如：避免了对托盘10的撕裂。可以理解的是，顶面盖板140上也设有通孔270，顶面盖板140上的通孔270与绝缘罩150上的通孔270对应连通，电芯30的正极柱304和负极柱305穿过顶面盖板140上的通孔270后，位于绝缘罩150上的通孔270内。
电池包100还包括前面罩220、密封罩230以及冷液管280。前面罩220安装在托盘10设有开口103的一侧。密封罩230盖合在托盘10上，以将多个电芯30密封。冷液管280设在电芯30的外表面上，用于对电芯30进行散热，冷液管280的进液口与出液口伸出在电池包100外。
安装时，将托盘10与拉板50、第一拉杆60以及第二拉杆70连接，如可以采用焊接，托盘10的底部以及四周贴绝缘片，在绝缘片空隙部位涂胶，以将电芯30固定在托盘10内。电芯30之间设置限位块90，电池与液冷管、一体化线束(包括绝缘罩150、FPC、连接片180)组装好通过工装放入托盘10中。连接片180与电池的正极柱304以及负极柱305焊接后，安装压板20、压板20与第一拉杆60、第二拉杆70以及拉板50分别通过螺钉固定。安装前面罩220、加盖密封罩230、密封罩230分别与托盘10通过打胶加密封的方式进行 密封。
以上所揭露的仅为本公开较佳实施例而已，当然不能以此来限定本公开之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本公开权利要求所作的等同变化，仍属于公开所涵盖的范围。

Claims (10)

  1. 一种电池包，其特征在于，包括托盘、压板以及多个阵列排布的电芯，所述托盘内形成有容纳空间，多个所述电芯收容在所述容纳空间内，所述压板压紧在所述多个电芯上，且所述压板的相对两端均固定在所述托盘上。
  2. 根据权利要求1所述的电池包，其特征在于，所述电池包还包括固定在所述托盘上的拉板，所述压板的相对两端包括第一端，所述压板的第一端与所述拉板连接，所述压板的第一端通过所述拉板固定在所述托盘上。
  3. 根据权利要求2所述的电池包，其特征在于，所述电池包还包括固定在所述托盘上的第一拉杆，所述压板的相对两端还包括第二端，所述第二端与所述第一端在长度方向上相对设置，所述压板的第二端与所述第一拉杆连接，所述压板的第二端通过所述第一拉杆固定在所述托盘上。
  4. 根据权利要求3所述的电池包，其特征在于，所述托盘包括底板、设于所述底板上的边梁，所述底板与所述边梁围成所述容纳空间，所述边梁上设有开口，所述边梁在所述开口内延伸有凸部，所述拉板固定在所述底板上，且所述凸部与所述拉板固定连接；所述第一拉杆固定在所述底板上，且所述第一拉杆与所述边梁固定连接。
  5. 根据权利要求4所述的电池包，其特征在于，所述电池包还包括第二拉杆，所述底板上设有多个间隔设置的中间横梁，每个所述中间横梁上均设有所述第二拉杆，所述第二拉杆穿过多个所述电芯之间的间隙与所述压板连接。
  6. 根据权利要求5所述的电池包，其特征在于，所述电池包还包括限位块，所述限位块设于相邻两个电芯之间，以使相邻的两个所述电芯之间形成间隙；沿着所述电芯的延伸方向，所述间隙包括中间部分与位于所述中间部分两侧的边缘部分，所述限位块位于所述边缘部分内，所述第二拉杆穿过所述中间部分与所述压板连接。
  7. 根据权利要求5或6所述的电池包，其特征在于，所述拉板的横截面积大于所述第一拉杆的横截面积；所述拉板的横截面积大于所述第二拉杆的横截面积。
  8. 根据权利要求5-7中任一项所述的电池包，其特征在于，所述拉板为多个，所述第一拉杆为多个，每个所述横梁上的所述第二拉杆为多个。
  9. 根据权利要求1-8中任一项所述的电池包，其特征在于，每个所述电芯包括顶面，所述顶面上设有间隔设置的正极柱与负极柱，多个所述电芯的顶面形成安装表面；
    所述电池包还包括顶面盖板与绝缘罩，所述顶面盖板安装在所述安装表面上，所述绝缘罩安装在所述顶面盖板上。
  10. 一种车辆，其特征在于，包括如权利要求1-9任一项所述的电池包。
PCT/CN2021/090550 2020-07-09 2021-04-28 车辆及其电池包 WO2022007482A1 (zh)

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