WO2022088753A1 - 电池包和具有其的车辆 - Google Patents

电池包和具有其的车辆 Download PDF

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Publication number
WO2022088753A1
WO2022088753A1 PCT/CN2021/105761 CN2021105761W WO2022088753A1 WO 2022088753 A1 WO2022088753 A1 WO 2022088753A1 CN 2021105761 W CN2021105761 W CN 2021105761W WO 2022088753 A1 WO2022088753 A1 WO 2022088753A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
sleeve
top plate
bottom plate
mounting
Prior art date
Application number
PCT/CN2021/105761
Other languages
English (en)
French (fr)
Inventor
谭亮稳
宋娜
谭晶
陈文会
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 EP21884490.0A priority Critical patent/EP4239771A4/en
Priority to KR1020237015859A priority patent/KR20230087541A/ko
Priority to JP2023526522A priority patent/JP2023547653A/ja
Priority to CA3197040A priority patent/CA3197040A1/en
Publication of WO2022088753A1 publication Critical patent/WO2022088753A1/zh
Priority to US18/141,012 priority patent/US20230261305A1/en

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • 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
    • 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
    • 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
    • H01M50/289—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
    • 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
    • H01M50/291—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 characterised by their shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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 present application relates to the technical field of battery packs, and in particular, to a battery pack and a vehicle having the same.
  • the battery pack in the related art is fixed on the vehicle body through a connecting device, wherein the battery pack includes a mounting beam and a bottom plate, the mounting beam is connected above the bottom plate and is connected with the connecting device, and the battery cell is supported on the bottom plate.
  • a downward force will be applied to the bottom plate; however, since the mounting beam above the bottom plate is subjected to the upward force provided by the connecting device, and the bottom plate is subjected to the downward force of the cell, the mounting beam and the The problem with the backplane connection failure.
  • the present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a battery pack, which can improve the problem of separation between the mounting beam and the bottom plate.
  • the present application also proposes a vehicle having the above-mentioned battery pack.
  • the battery pack according to the embodiment of the first aspect of the present application includes: a battery cell; a bottom plate, the bottom plate is arranged below the battery core to support the battery core; a top plate, the top plate is arranged above the battery core;
  • An installation beam the installation beam includes a main beam portion and a bottom beam portion, the main beam portion is located between the bottom plate and the top plate, the bottom beam portion is connected to the lower end of the main beam portion, and is supported on below the bottom plate; and a connecting assembly for installing the battery pack to a mounting point in an application scenario, the connecting assembly cooperates with the mounting beam to install the battery pack to the application An upward force is provided to the mounting beam when the mounting point is in the scene.
  • the mounting beam is not completely located above the bottom plate, but includes a bottom beam portion located below the bottom plate, the point where the mounting beam exerts force on the bottom plate is not located above the bottom plate, but is located on the bottom plate Therefore, under the gravity of the battery core, the bottom plate will only be more closely connected with the mounting beam, and will not be separated from the mounting beam, thereby improving the reliability and effectiveness of the mounting beam supporting the bottom plate, and improving the relationship between the mounting beam and the mounting beam.
  • the firmness and stability of the bottom plate fit.
  • the connecting assemblies are multiple and spaced apart along the length of the mounting beam.
  • connection assembly includes: a sleeve, the sleeve includes a sleeve part and a bottom edge part, the sleeve part passes through the mounting beam in an up-down direction, and the bottom edge part The bottom part is connected to the lower end of the sleeve part and supported under the bottom beam part.
  • the connecting assembly further includes: a connecting piece, the connecting piece includes a head portion and a rod portion, and the head portion is connected to the lower end of the rod portion , the head is supported under the boss, the rod part penetrates the sleeve and the top plate, and the upper end of the rod part is located above the top plate.
  • connection assembly further includes: a first seal, the sleeve includes a connection part, the connection part is connected to the upper end of the sleeve part and penetrates the top plate, the sleeve The outer diameter of the cylindrical portion is larger than the outer diameter of the connecting portion, and the first sealing member is sleeved outside the connecting portion and sandwiched between the sleeve portion and the top plate.
  • connection assembly further includes a nut, an outer peripheral surface of at least a portion of the connection portion located above the top plate has an external thread, the nut is located above the top plate and is threadedly socketed outside the connection.
  • connection assembly further includes a second seal located on top of the nut and surrounding the inner hole of the nut.
  • the top of the nut has a shielding portion, and the shielding portion is annular and located above the connecting portion, so as to shield the threaded engagement between the connecting portion and the nut.
  • connection assembly further includes a third sealing member, the third sealing member is sleeved outside the rod portion and sandwiched between the head portion and the boss.
  • the bottom beam portion includes a central portion and an outer peripheral portion, the outer peripheral portion is disposed around the central portion, the thickness of the central portion is greater than that of the outer peripheral portion, and the bottom rim portion supported below the central portion.
  • the bottom beam portion further includes a transition portion, the transition portion is connected between the central portion and the peripheral portion, and the transition portion has a thickness from the central portion to the outer peripheral portion.
  • the direction of the outer peripheral portion gradually decreases, the top surface of the central portion is flush with the top surface of the outer peripheral portion, and the bottom surface of the central portion and the bottom surface of the outer peripheral portion are connected by a smooth transition through the bottom surface of the transition portion. .
  • the outer edge top wall of the bottom beam portion has a sink groove, the outer side surface of the sink groove is open, and the bottom plate is overlapped and fixed on the inner wall of the sink groove.
  • the battery cells are respectively provided on both sides of the mounting beam in the width direction.
  • the battery pack includes a plurality of side beams arranged around the bottom plate, the plurality of side beams are connected with the bottom plate to form a tray, the plurality of side beams are surrounded to form a frame, and the Both the cell and the mounting beam are arranged in the frame.
  • the battery cells are adhered to the bottom plate.
  • the top plate is a cold plate and is bonded to the cell.
  • the mounting beam is a hollow beam, and a reinforcing rib is arranged in the hollow beam, the reinforcing rib extends along the length direction of the mounting beam, and there are multiple reinforcing ribs along the length of the mounting beam.
  • the upper and lower directions are spaced apart in the main beam portion.
  • the outer edge top wall of the bottom beam portion has a sink groove, the outer side surface of the sink groove is open, and the bottom plate is overlapped and fixed on the inner wall of the sink groove.
  • the mounting beam further includes a top beam portion connected to an upper end of the main beam portion and supported below the top plate, and the sleeve portion extends in an up-down direction The upper end of the sleeve portion is supported below the top beam portion.
  • a vehicle according to an embodiment of the second aspect of the present application includes a vehicle body and a battery pack, the battery pack is the battery pack according to the embodiment of the first aspect of the present application, and the connecting assembly is connected to the vehicle body.
  • the overall performance of the vehicle is improved by arranging the battery pack of the embodiment of the first aspect.
  • FIG. 1 is a cross-sectional view of a battery pack according to an embodiment of the present application.
  • Fig. 2 is an enlarged view at F1 shown in Fig. 1;
  • Figure 3 is a cross-sectional view of the tray shown in Figure 1;
  • Figure 4 is an enlarged view at F2 shown in Figure 3;
  • FIG. 5 is a cross-sectional view of a battery pack according to another embodiment of the present application.
  • Figure 6 is an enlarged view at F3 shown in Figure 5;
  • FIG. 7 is a cross-sectional view of a battery pack according to another embodiment of the present application.
  • Figure 8 is an enlarged view at F4 shown in Figure 7;
  • FIG. 9 is a cross-sectional view of a battery pack according to another embodiment of the present application.
  • Figure 10 is an enlarged view at F5 shown in Figure 9;
  • FIG 11 is an enlarged view at F6 shown in Figure 9;
  • FIG. 12 is an exploded view of a battery pack according to an embodiment of the present application.
  • Figure 13 is an assembly view of the battery pack shown in Figure 12;
  • FIG. 14 is a schematic diagram of a vehicle according to one embodiment of the present application.
  • the battery pack 100 includes a bottom plate 1 , cells 2 and a top plate 3 .
  • the cells 2 are arranged above the bottom plate 1
  • the top plate 3 is arranged above the cells 2 . That is, the top plate 3 is located above the bottom plate 1
  • the cells 2 are located between the top of the bottom plate 1 and the bottom of the top plate 3 .
  • the bottom plate 1 is disposed under the battery cells 2 to support the battery cells 2 .
  • the terms “up” and “down” described herein are based on the application scenario where the battery pack 100 is installed. For example, when the battery pack 100 is installed on the body 200 of the vehicle 1000, the upper and lower The direction refers to the up-down direction of the vehicle 1000 , that is, the top of the vehicle 1000 is “up”, and the bottom of the vehicle 1000 is "down”.
  • the battery pack 100 further includes a mounting beam 4 , the mounting beam 4 includes a main beam portion 41 and a bottom beam portion 42 , the main beam portion 41 is located between the bottom plate 1 and the top plate 3 , and the bottom beam portion 42 is connected The lower end of the main beam portion 41 is supported below the bottom plate 1 .
  • the fact that the bottom beam portion 42 is supported below the bottom plate 1 means that the bottom beam portion 42 is located below the bottom plate 1 to directly or indirectly support the bottom plate 1 .
  • the one when one "supports" the other, the one may be in contact with the other or may be non-contact, and the one and the other may be in contact with each other. There may or may not be a fixed connection between them.
  • the battery pack 100 further includes a connection component 5, and the connection component 5 is used to install the battery pack 100 to the installation point in the application scenario, that is, by setting the connection component 5, the battery pack 100 is connected to the application
  • the installation position in the scene for example, when the battery pack 100 is applied to the vehicle 1000 , the connection assembly 5 can be connected to the body 200 of the vehicle 1000 , and at this time, the installation point is located on the body 200 .
  • the application scenario of the battery pack 100 is not limited to the vehicle 1000, and can also be applied to application scenarios such as drones and energy storage devices, for example.
  • connection assembly 5 cooperates with the mounting beam 4 to provide an upward force to the mounting beam 4 when the battery pack 100 is mounted to the mounting point in the application scene.
  • the specific mode of cooperation between the connection assembly 5 and the mounting beam 4 is not limited, as long as the above-mentioned function of "providing an upward force to the mounting beam 4 when the battery pack 100 is installed to the mounting point in the application scenario" can be satisfied. That's it.
  • the connection assembly 5 can be snap-connected, plug-connected, overlapped, interference-fitted, screwed, welded, or fixedly connected with a connector, etc., with the mounting beam 4 , etc.
  • the relative positions of the connecting assembly 5 to the mounting beam 4, the bottom plate 1, and the top plate 3 are not limited.
  • the connecting assembly 5 can be located between the bottom plate 1 and the top plate 3, and can also pass through the bottom plate 1 downward or upward.
  • the top plate 3 and the like will not be repeated here.
  • the battery pack 100 can be connected to the application scene, so that the battery pack 100 can be installed or the installation stability of the battery pack 100 can be improved.
  • the connecting component 5 when the battery pack 100 is installed When the 100 is installed on the vehicle 1000, the connecting component 5 can be connected to the frame of the vehicle body 200. At this time, if the battery pack 100 is also connected to the vehicle body 200 through other mounting structures, the connecting component 5 can be provided to improve the battery pack. The installation stability of the battery pack 100 is improved, and if the battery pack 100 is no longer connected to the vehicle body 200 through other mounting structures, the battery pack 100 can be hoisted by setting the connection assembly 5 .
  • the mounting beam 4 since the mounting beam 4 includes the bottom beam portion 42 supported under the bottom plate 1 , the bottom plate 1 is located above the bottom beam portion 42 .
  • the connection component 5 provides an upward force to the installation beam 4.
  • the installation The beam 4 can provide a supporting force to the bottom plate 1 located above it through the bottom beam portion 42, thereby improving the reliability of the mounting beam 4 supporting the bottom plate 1, improving the firmness and stability of the mounting beam 4 and the bottom plate 1, and avoiding the installation of the beam. 4 is separated from the bottom plate 1.
  • the battery cells 2 are bonded to the base plate 1 , for example, by using the structural adhesive 7 shown in FIG. 2 . Therefore, under the downward action of the gravity of the battery core 2, the battery core 2 exerts a downward force on the bottom plate 1, so that the bottom plate 1 and the mounting beam 4 are pressed tightly, so as to ensure the reliability of the matching between the mounting beam 4 and the bottom plate 1. .
  • the base plate 1 can reliably support the battery cells 2 through the adhesion of the battery cells 2 and the base plate 1 .
  • the top plate 3 is a cold plate and is bonded to the cell 2 , for example, by the thermally conductive adhesive 8 shown in FIG. 2 . Therefore, the temperature of the battery cells 2 can be adjusted through the top plate 3 to ensure the reliable operation of the battery pack 100 . In this way, an upward force is provided to the bottom plate 1 through the mounting beam 4 , thereby effectively avoiding the problem that the battery core 2 is detached downward relative to the top plate 3 , and the problem of bonding failure occurs.
  • the connecting device for connecting with the vehicle body is directly fixed on the top plate, and under the action of the self-weight of the cell, the cell transmits the downward force
  • the connecting device will provide an upward force to the top plate, which will cause the glue between the top plate and the battery core to fail, and the problem of the battery core falling off relative to the top plate occurs.
  • some other battery packs in the related art are provided with mounting beams, but the mounting beams are all located above the bottom plate and are fixedly connected to the bottom plate by welding or bonding.
  • the mounting beam 4 is not completely located above the bottom plate 1 , but includes a bottom beam portion 42 located below the bottom plate 1 , the action point where the mounting beam 4 exerts force on the bottom plate 1 is not located at the bottom plate 1 .
  • the bottom plate 1 is above the bottom plate 1, but is located below the bottom plate 1, so that the bottom plate 1 will only be more closely connected with the mounting beam 4 under the downward action of the gravity of the cell 2, and will not be separated from the mounting beam 4, thereby improving the
  • the reliability and effectiveness of the mounting beam 4 supporting the base plate 1 improve the firmness and stability of the mounting beam 4 and the base plate 1 in cooperation.
  • the connection assembly 5 includes a sleeve 51 , the sleeve 51 includes a sleeve portion 511 and a bottom edge portion 512 , and the sleeve portion 511 penetrates the mounting beam 4 in the up-down direction.
  • the bottom edge portion 512 is connected to the lower end of the sleeve portion 511 and supported below the bottom beam portion 42 .
  • the fact that the bottom edge portion 512 is supported below the bottom beam portion 42 means that the bottom edge portion 512 is located below the bottom beam portion 42 to directly or indirectly support the mounting beam 4 .
  • connection assembly 5 can simply and effectively realize the cooperation with the mounting beam 4 and provide an upward force to the mounting beam 4 .
  • the sleeve 51 includes the bottom edge portion 512 supported under the mounting beam 4, the reliability of the connecting assembly 5 providing upward force to the mounting beam 4 can be improved, and the upward movement of the connecting assembly 5 relative to the mounting beam 4 can be avoided. The problem of detachment from the mounting beam 4 occurs, improving the working reliability and effectiveness of the connecting assembly 5 .
  • the relative positional relationship between the sleeve 51 and the top plate 3 is not limited.
  • the upper end of the sleeve 51 may be located below the top plate 3, or, for example, the upper end of the sleeve 51 may pass through the The top plate 3 is located above the top plate 3 .
  • the sleeve 51 can be directly connected to the installation point in the application scene, so that the battery pack 100 is installed to the installation point in the application scene. Connecting, welding, or connecting with the installation point in the application scene by means of connection, welding, or fixed connection with a connector, in this case, the connector 52 described later can be omitted.
  • a boss 513 is provided in the sleeve 51
  • the connecting assembly 5 further includes a connecting piece 52 .
  • the connecting piece 52 includes a head 521 and a rod 522 , and the head 521 is connected to the The lower end of the rod 522, the head 521 is supported under the boss 513, the rod 522 penetrates the sleeve 51 and the top plate 3 and the upper end of the rod 522 is located above the top plate 3, that is, the rod 522 passes upward through the sleeve 51 and top plate 3. Therefore, the upper end of the rod portion 522 can be connected to the installation point such as the vehicle body, so that the connection component 5 can be connected to the installation point in the application scene simply and effectively, so that the connection component 5 can provide upward force to the installation beam 4 .
  • the specific selection of the connector 52 is not limited, for example, it may be a bolt, a rivet, a pin, or the like.
  • the specific structure of the boss 513 is not limited.
  • a second-stage stepped hole may be formed in the sleeve 51 , the second-stage stepped hole includes an upper hole and a lower hole, the diameter of the upper hole is smaller than that of the lower hole, and the lower end of the upper hole and the lower hole The stepped surface formed between the upper ends of the studs constitutes the lower surface of the boss 513 .
  • annular boss may also be formed in the sleeve 51, and an upper hole located above the annular boss, a lower hole located below the annular boss, And the annular hole defined by the inner ring of the annular boss, the diameter of the upper hole and the diameter of the lower hole are both larger than the diameter of the annular hole, and the lower end surface of the annular boss constitutes the lower surface of the boss 513 .
  • the head portion 521 provides upward force to the sleeve 51 through the boss 513 .
  • the sleeve 51 transmits the upward force to the bottom beam portion 42 of the mounting beam 4 through the bottom edge portion 512, and the mounting beam 4 transmits the upward force to the bottom plate 1 through the bottom beam portion 42.
  • the bottom plate 1 is used to support the battery cell 2. The gravity of the battery cell 2 and the upward force provided by the mounting beam 4 to the bottom plate 1 make the connection between the bottom plate 1 and the mounting beam 4 pressed tightly.
  • the acting force is from bottom to top, and the acting force is provided from the bottom of the battery pack 100, rather than providing upward lifting force to the battery pack 100 from above the battery pack 100, and the top plate 3 is not subjected to the upward lifting force, avoiding the top plate 3 Between the glue and the cell 2, the stress is concentrated in the local area, and the problem of separation of the top plate 3 and the cell 2 occurs.
  • the connector 52 is mainly used to connect the battery pack 100 to the installation point in the application scenario, such as connecting to the frame in the vehicle body, so as to realize the connection and fixation of the battery pack 100 and the whole vehicle. It is located outside the sleeve 51, and there may be no other connection relationship with other components of the battery pack 100.
  • the battery pack 100 does not need to carry the connector 52 when it is shipped separately, and the presence or absence of the connector 52 does not affect the battery.
  • the sealing of the battery pack 100 improves the sealing and reliability of the battery pack 100 .
  • the connecting assemblies 5 may be multiple and spaced along the length direction of the mounting beam 4 . In this way, the stress can be dispersed, and the stress of each connecting assembly 5 can be reduced, thereby further improving the working reliability of the connecting assembly 5 .
  • the mounting beam 4 may be provided with a plurality of mounting holes 40 spaced apart along its length direction, each mounting hole 40 penetrates the mounting beam 4 in the up-down direction, and each mounting hole 40 are respectively equipped with a connecting assembly 5, so that a plurality of connecting assemblies 5 can be assembled simply and effectively, and the position of each connecting assembly 5 is guaranteed to be reliable and effective. Assembly efficiency and work reliability.
  • the mounting beam 4 in order to achieve weight reduction, can be set as a hollow beam, and reinforcing ribs 44 can be set in the hollow beam, so that not only can The weight reduction can also ensure the structural reliability of the mounting beam 4 .
  • the reinforcing ribs 44 may extend along the length direction of the mounting beam 4 , and a plurality of the reinforcing ribs 44 may be arranged in the main beam portion 41 at intervals in the up-down direction.
  • the bottom beam portion 42 includes a central portion 421 and an outer peripheral portion 422 , the outer peripheral portion 422 is disposed around the central portion 421 , and the thickness of the central portion 421 is greater than that of the outer peripheral portion 422 . thickness, the bottom edge portion 512 is supported below the center portion 421 . Therefore, on the one hand, the weight reduction requirements of the mounting beam 4 can be met, and on the other hand, the structural strength and rigidity of the main stress positions of the mounting beam 4 can be improved to avoid the problem of stress deformation of the mounting beam 4 .
  • the bottom beam portion 42 further includes a transition portion 423 , the transition portion 423 is connected between the central portion 421 and the outer peripheral portion 422 , and the thickness of the transition portion 423 is from The direction from the central portion 421 to the peripheral portion 422 gradually decreases, the top surface of the central portion 421 is flush with the top surface of the peripheral portion 422 , and the bottom surface of the central portion 421 and the bottom surface of the peripheral portion 422 are connected by a smooth transition through the bottom surface of the transition portion 423 .
  • the upper surface of the bottom beam portion 42 is substantially flat, so as to ensure that the plurality of cells 2 above it can be arranged side by side at the same height. Problems such as stress concentration and fracture occur, thereby ensuring the structural reliability of the bottom beam portion 42 .
  • the outer edge top wall of the bottom beam portion 42 has a recessed groove 424 , and the outer side of the recessed groove 424 is open, that is, the recessed groove 424 is recessed downward, and the The surface of one side away from the center of the bottom beam portion 42 is open, and the bottom plate 1 is overlapped and fixed on the inner wall of the sink groove 424 .
  • the bottom plate 1 is overlapped on the inner wall of the sink groove 424 , which means that a part of the bottom plate 1 is overlapped on the inner wall of the sink groove 424 .
  • the fact that the bottom plate 1 is fixed on the inner wall of the sink groove 424 means that there is a fixed connection between the bottom plate 1 and the inner wall of the sink groove 424 , for example, welding or the like.
  • the sink groove 424 overlapping with the bottom plate 1 on the outer edge of the bottom beam portion 42, it is beneficial to the welding of the bottom plate 1 and the bottom beam portion 42.
  • friction stir welding can be used to ensure that the welding effect will not be opposite.
  • the battery pack 100 has adverse effects, for example, no exposed welding seam is generated on the outer edge of the bottom beam portion 42, etc., and the sink groove 424 can be used to achieve the effect of assembling and positioning, that is, before welding, the sink groove 424 can be used to quickly achieve The bottom beam portion 42 is fitted in place with the bottom plate 1 .
  • the present application is not limited to this.
  • the bottom beam portion 42 may not be provided with the sinker 424. In this case, other methods may also be used to connect the bottom plate 1 and the bottom beam portion 42, which will not be repeated here. .
  • the two sides in the width direction of the mounting beam 4 are respectively provided with cells 2 (the F2 direction as shown in FIG. 1 is the width of the mounting beam 4 ). direction), that is, at least one cell 2 is provided on one side of the width of the mounting beam 4 , and at least one cell 2 is also provided on the other side of the width of the mounting beam 4 .
  • the mounting beam 4 is not located at the side of the battery pack 100 , so that the connection stability between the non-side position of the battery pack 100 and the installation point in the application scenario can be ensured, and the relative application of the battery pack 100 in the non-side position can be improved. Vibration issues with mount points in the scene.
  • the number of the mounting beams 4 is not limited and can be one or more. When the number of mounting beams 4 is one, the number of cells 2 on both sides of the width of the mounting beam 4 can be equal or unequal. When there are multiple installation beams 4 , battery cells 2 are respectively provided on both lateral sides of each mounting beam 4 , so that there are also battery cells 2 between two adjacent mounting beams 4 .
  • the battery pack 100 includes a plurality of side beams 6 arranged around the bottom plate 1 , the plurality of side beams 6 are connected with the bottom plate 1 to form a tray 101 , and the plurality of side beams 6 is surrounded by a frame, that is to say, the battery pack 100 includes a tray 101, the tray 101 includes a bottom plate 1 and a plurality of side beams 6 located around the bottom plate 1, the plurality of side beams 6 are surrounded by a frame, the frame is arranged around the bottom plate 1, and the battery cells 2 and the mounting beam 4 are both arranged in the frame.
  • the four side beams 6 can enclose a box, the bottom plate 1 is located at the bottom of the box, and the mounting beam 4 is at least one and is located in the box defined by the four peripheral beams 6 Inside.
  • the mounting beam 4 is not located at the side of the battery pack 100 , so that the connection stability between the non-side position of the battery pack 100 and the installation point in the application scenario can be ensured, and the relative application of the battery pack 100 in the non-side position can be improved. Vibration issues with mount points in the scene.
  • the present application is not limited to this, and the side beams 6 are not limited to four, for example, there may be more than four or less than four.
  • the frame surrounded by the side beam 6 is not limited to a square frame, for example, other polygonal frames can also be used. .
  • the base plate 1 when there is one mounting beam 4, the base plate 1 may include two sub-boards and the two sub-boards are located on both sides of the width direction of the mounting beam 4, so as to facilitate assembly, when there are multiple mounting beams 4, and
  • the base plate 1 may include a plurality of sub-boards that are spaced and arranged along the first direction, and the number of the sub-boards is one more than the number of the mounting beams 4, so that each installation can be guaranteed.
  • a sub-board is respectively provided on both sides of the width of the beam 4 , and a sub-board is placed between two adjacent mounting beams 4 .
  • the first direction may be the length direction of the battery pack 100 or the width direction of the battery pack 100 .
  • the length direction of the mounting beam 4 is the length direction of the battery pack 100 (the F1 direction shown in FIG. 1 is the length direction of the battery pack 100 ),
  • the width direction of the mounting beam 4 is the width direction of the battery pack 100 (the F2 direction as shown in FIG. 1 is the width direction of the battery pack 100 ).
  • the thickness direction of the mounting beam 4 and the thickness direction of the battery pack 100 are both vertical directions (the F3 direction shown in FIG. 1 ).
  • the mounting beam 4 is the central longitudinal beam of the battery pack 100, so that the connection stability between the central position of the battery pack 100 and the installation point in the application scenario can be improved, and the vibration problem of the central position of the battery pack 100 relative to the installation point in the application scenario can be improved, And by setting the mounting beam 4 as the central longitudinal beam, the anti-vibration effect and the overall structural reliability of the battery pack 100 can also be improved.
  • the present application is not limited thereto.
  • the length direction of the mounting beam 4 is the width direction of the battery pack 100
  • the width direction of the mounting beam 4 is the length direction of the battery pack 100
  • the mounting beam 4 is located in the battery pack 100 .
  • the center position in the longitudinal direction of the bag 100 . Therefore, the mounting beam 4 is the central beam of the battery pack 100, so that the connection stability between the central position of the battery pack 100 and the installation point in the application scene can be improved, and the vibration problem of the central position of the battery pack 100 relative to the installation point in the application scene can be improved, and
  • the mounting beam 4 is a central beam, so that the connection stability between the central position of the battery pack 100 and the installation point in the application scene can be improved, and the vibration problem of the central position of the battery pack 100 relative to the installation point in the application scene can be improved, and
  • the mounting beam 4 is a central beam, the anti-vibration effect and overall structural reliability of the battery pack 100 can also be improved.
  • the battery pack in the related art is generally fixed to the frame of the vehicle through the lifting lugs on the side beams on both sides of the battery pack in the length or width direction.
  • the middle of the lower battery pack is prone to vibrate up and down, that is, the farther away from the fixed point, the greater the vibration amplitude, which can easily lead to structural damage or noise.
  • the mounting beam 4 is arranged at the center of the width of the battery pack 100 and extends along the length direction of the battery pack 100 , and the mounting beam 4 is spaced along the length direction of the mounting beam 4 .
  • a plurality of connecting components 5 are distributed, so that the central part of the battery pack 100 is connected to the frame of the vehicle body, so that the strength of the battery pack 100 and the whole vehicle can be effectively improved.
  • the whole vehicle uses the battery pack 100 to improve the anti-extrusion resistance of the frame.
  • the battery pack 100 utilizes the frame to improve the vibration mode of the pack body, avoiding the disadvantage of large vibration amplitude in the middle of the battery pack 100 .
  • connection assembly 5 may further include: a nut 53 , a first sealing member 54 , a second sealing member 55 , a third sealing member 56 , etc., which will not be repeated here.
  • the assembling steps of the battery pack 100 according to the embodiment of the first aspect of the present application can also be performed with reference to the assembling steps of the battery pack 100 according to the embodiment of the second aspect described later, which will not be repeated here.
  • the battery pack 100 includes a bottom plate 1 , cells 2 and a top plate 3 .
  • the cells 2 are arranged above the bottom plate 1
  • the top plate 3 is arranged above the cells 2 . That is, the top plate 3 is located above the bottom plate 1 , and the cells 2 are located between the top of the bottom plate 1 and the bottom of the top plate 3 .
  • the bottom plate 1 is disposed under the battery cells 2 to support the battery cells 2 .
  • the terms “up” and “down” described herein are based on the application scenario where the battery pack 100 is installed. For example, when the battery pack 100 is installed on the body 200 of the vehicle 1000, the upper and lower The direction refers to the up-down direction of the vehicle 1000 , that is, the top of the vehicle 1000 is “up”, and the bottom of the vehicle 1000 is "down”.
  • the battery pack 100 may further include a connection component 5 , and the connection component 5 is used to install the battery pack 100 to an installation point in an application scenario, that is, to connect by setting Component 5, which connects the battery pack 100 to the installation position in the application scenario.
  • the connection component 5 can be connected to the body 200 of the vehicle 1000.
  • the installation point is located on the body 200.
  • the application scenario of the battery pack 100 is not limited to the vehicle 1000, and can also be applied to application scenarios such as drones and energy storage devices, for example.
  • the battery pack 100 can be connected to the application scene, so that the battery pack 100 can be installed or the installation stability of the battery pack 100 can be improved.
  • the connecting component 5 when the battery pack 100 is installed When the 100 is installed on the vehicle 1000, the connecting component 5 can be connected to the frame of the vehicle body 200. At this time, if the battery pack 100 is also connected to the vehicle body 200 through other mounting structures, the connecting component 5 can be provided to improve the battery pack. The installation stability of the battery pack 100 is improved, and if the battery pack 100 is no longer connected to the vehicle body 200 through other mounting structures, the battery pack 100 can be hoisted by setting the connection assembly 5 .
  • the connecting assembly 5 includes a sleeve 51 and a nut 53 , the sleeve 51 includes a sleeve portion 511 and a connecting portion 514 , and the sleeve portion 511 extends in the up-down direction (may be vertically extending in the up-down direction).
  • the top plate 3 is moved upward relative to the top plate 3, and the connecting portion 514 is connected to the upper end of the sleeve portion 511 and penetrates the top plate 3, that is, at least part of the connecting portion 514 is located above the top plate 3. It can be understood that with reference to FIG. 8, the top plate 3 has The escape hole 30 that allows the connecting portion 514 to pass through.
  • the outer peripheral surface of at least the portion of the connecting portion 514 located above the top plate 3 has external threads, and the nut 53 is located above the top plate 3 and is threaded outside the connecting portion 514 to restrict the sleeve 51 Move downward relative to the top plate 3 .
  • the inner peripheral surface of the nut 53 has an inner thread, and through the cooperation of the inner thread and the outer thread, the nut 53 can be threadedly sleeved on the outer peripheral wall of the connecting portion 514, so that the nut 53 and the outer thread can be easily and effectively realized.
  • the cooperation of the connecting portion 514 and the contact of the nut 53 against the top of the top plate 3 can prevent the sleeve 51 from moving downward relative to the top plate 3 .
  • the connecting portion 514 protrudes above the top plate 3 and has external threads on the outer peripheral surface, when the nut 53 is installed, the visualization is strong, which can be simple and fast , Complete the assembly of the nut 53 accurately.
  • the sleeve as a whole is located below the top plate, and an internal thread is provided, and a locking bolt with an external thread is used to penetrate downward from the top plate to cooperate with the internal thread of the sleeve to prevent the sleeve from moving down relative to the top plate.
  • a locking bolt with an external thread is used to penetrate downward from the top plate to cooperate with the internal thread of the sleeve to prevent the sleeve from moving down relative to the top plate.
  • the assembly efficiency is low, and the internal thread on the upper end of the sleeve is easily damaged, resulting in structural failure.
  • the sleeve 51 has the connecting portion 514 extending above the top plate 3 , and the outer peripheral surface of the connecting portion 514 has external threads, when the nut 53 is installed, the visualization is strong, and the The assembly of the nut 53 is completed simply, quickly and accurately.
  • the connecting assembly 5 further includes: a first sealing member 54 , the outer diameter of the sleeve portion 511 is larger than that of the connecting portion 514 , and the first sealing member 54 It is sleeved outside the connecting portion 514 and sandwiched between the sleeve portion 511 and the top plate 3, that is to say, the first sealing member 54 is located between (the upper end of) the sleeve portion 511 and the top plate 3, and surrounds the connecting portion. 514.
  • the first sealing member 54 By providing the first sealing member 54, the airtightness of the battery pack 100 can be improved.
  • the top plate 3 needs to have an escape hole 30 so that the battery pack 100 is not sealed.
  • the first sealing member 54 between the battery packs 100 can be reliably sealed at the avoidance hole 30 when the battery pack 100 is shipped (ie, when the battery pack 100 is not installed on the vehicle).
  • the top plate 3 can be pressed against the first sealing member 54, thereby ensuring the sealing effect.
  • the top of the nut 53 has a shielding portion 531 , and the shielding portion 531 is annular and located above the connecting portion 514 to shield the thread between the connecting portion 514 and the nut 53 . Therefore, the shielding portion 531 can be used to cover the threaded joint of the nut 53 and the connecting portion 514, as well as the first sealing member 54, etc., to form protection to prevent external water droplets from dripping into the threaded fitting of the nut 53 and the connecting portion 514. , and flows into the first sealing member 54 to form accumulated water, so as to protect the battery pack 100 more effectively.
  • the outside of the battery pack 100 is generally in a salt spray environment, the accumulated water is corrosive, and the first sealing member 54 is in contact with the accumulated water for a long time, which will reduce the life of the first sealing member 54 and affect the sealing of the battery pack 100 . .
  • the connecting assembly 5 when the outer diameter of the sleeve portion 511 is larger than the outer diameter of the connecting portion 514 , the connecting assembly 5 further includes a first sealing member 54 , and the first sealing member 54 is sleeved on the When the connection part 514 is outside and is sandwiched between the upper end of the sleeve part 511 and the bottom surface of the top plate 3, when the nut 53 and the top plate 3 abut, there is a gap between the bottom surface of the shielding part 531 and the top surface of the connection part 514 S.
  • the compression amount of the first sealing member 54 can be ensured, so as to prevent the first sealing member 54 from being compressed to an appropriate level, and the bottom surface of the shielding portion 531 and the top surface of the connecting portion 514 come into contact and abut against each other, resulting in the first sealing member If the compression amount of 54 is too small, the problem of insufficient sealing level is caused, thereby improving the sealing effect. That is, after the nut 53 is tightened, there is still a gap S between the shielding portion 531 of the nut 53 and the top surface of the sleeve 51, so as to ensure that the tightening surface of the nut 53 is kept in contact between the bottom surface of the nut 53 and the top surface of the top plate 3. Therefore, after the nut 53 is pressed against the top plate 3 , the top plate 3 is pressed down against the first sealing member 54 to realize the sealing between the top plate 3 and the sleeve 51 .
  • the battery pack 100 further includes a mounting beam 4
  • the mounting beam 4 includes a main beam portion 41 and a top beam portion 43
  • the main beam portion 41 and the top beam portion 43 Both are located between the bottom plate 1 and the top plate 3
  • the top beam portion 43 is connected to the upper end of the main beam portion 41, and is supported under the top plate 3
  • the top beam portion 43 has a matching hole 431
  • the sleeve portion 511 extends in the up-down direction and Passing through the mounting beam 4
  • the upper end of the sleeve portion 511 is supported below the top beam portion 43
  • the connecting portion 514 penetrates the fitting hole 431
  • the first sealing member 54 is fitted in the fitting hole 431 , and has an initial thickness greater than that of the top beam portion 43 .
  • Thickness that is, when assembled, a part of the first sealing member 54 is located in the matching hole 431 and the rest is beyond the matching hole 431 .
  • the compression amount of the first sealing member 54 can be ensured, so as to prevent the first sealing member 54 from being compressed to an appropriate level, the top surface of the sleeve portion 511 and the bottom surface of the top beam portion 43 abut against each other, resulting in the first sealing member If the compression amount of 54 is too small, the problem of insufficient sealing level is caused, and when the first sealing member 54 is compressed to an appropriate level, the top surface of the sleeve part 511 and the bottom surface of the top beam part 43 can be used to prevent the first sealing Excessive compression of the member 54 causes permanent deformation of the first sealing member 54, and even causes the first sealing member 54 to crack, causing problems such as sealing failure.
  • the initial thickness of the first sealing member 54 in the free state should be greater than the thickness of the top beam portion 43 .
  • the thickness of the first sealing member 54 after being stressed is equal to the thickness of the top beam portion 43 .
  • the compressed thickness of the first sealing member 54 can be controlled.
  • the first sealing member 54 The compression amount of the first seal 54 has a great correlation with the sealing performance of the first seal 54. If the compression ratio of the first seal 54 is too small, the seal will fail. If the compression ratio of the first seal 54 is too large, the first seal The member 54 may form cracks and fail, or reduce the service life of the first sealing member 54 .
  • the nut 53 in order to ensure an appropriate amount of compression of the first sealing member 54, the nut 53 is locked to the connecting portion 514 of the sleeve 51, and the top plate 3 is pressed down through the nut 53, and the top plate 3 is in contact with the mounting beam 4, The mounting beam 4 and the sleeve 51 are welded into a whole. Before the nut 53 is not tightened, the abutment surface between the upper end surface of the sleeve part 511 and the bottom surface of the first seal 54 is lower than the height of the top beam part 43 .
  • the bottom surface, the height difference between the two surfaces can ensure the compression of the first seal 54, so as to avoid the excessive compression of the first seal 54 causing the permanent change of the first seal 54 (even causing the first seal 54 to crack, causing seal failure), and also avoids the problem of unsatisfactory sealing level caused by too small compression of the first sealing member 54 .
  • connection assembly 5 further includes: a second sealing member 55 .
  • the second sealing member 55 is located on the top of the nut 53 and surrounds the inner hole of the nut 53 , so as to realize the battery pack The mating seal between the 100 and the corresponding mounting point in the application scenario.
  • the second sealing member 55 may be located on the top of the shielding portion 531 .
  • a groove may be provided on the top of the nut 53, for example, in the example shown in FIG.
  • the top wall of 531 is provided with a groove, so that a part of the second sealing member 55 is embedded in the groove, so that the compression amount of the second sealing member 55 can be limited by defining the groove depth of the groove.
  • the battery pack in the related art can only achieve self-sealing, but fails to achieve the connection sealing between the battery pack and the vehicle frame. Since threaded through holes need to be opened on the frame of the whole vehicle to connect with the fixing holes of the battery pack, the opening of threaded through holes on the frame will cause the sealing failure of the body here.
  • the connection and sealing between the top of the battery pack 100 and the frame is achieved by adding a second sealing member 55 in the area where the battery pack 100 and the frame are attached.
  • the second sealing member 55 on the top of the nut 53 can be compressed and bonded during the locking and bonding process between the vehicle frame and the battery pack 100, so as to realize the battery The seal between the top of the bag 100 and the frame.
  • the top surface of the nut 53 is higher than the top surface of the top plate 3 . It can be understood that when the nut 53 includes the shielding portion 531 , the top surface of the shielding portion 531 is the nut 53 top surface. Therefore, when the battery pack 100 is locked with the vehicle frame, the relative distance between the top plate 3 and the vehicle frame can be limited by at least part of the nut 53 being higher than (ie, protruding outward from) the top plate 3 . The problem that the frame of the whole vehicle is pressed against the top plate 3 and the deformation of the top plate 3 is avoided, so that the battery pack 100 can be effectively protected.
  • the sleeve 51 has a boss 513 therein
  • the connecting assembly 5 further includes: a connecting piece 52
  • the connecting piece 52 includes a head 521 and a rod 522 .
  • the part 521 is connected to the lower end of the rod part 522, the head part 521 is supported under the boss 513, the rod part 522 passes upward through the sleeve 51, the top plate 3 and the nut 53, that is to say, the rod part 522 penetrates the sleeve 51, the top plate 3 and the nut 53, and the upper end of the rod portion 522 is located above the nut 53.
  • the upper end of the rod portion 522 can be connected to the installation point such as the vehicle body, so that the connection component 5 can be connected to the installation point in the application scene simply and effectively, and the downward action of the self-gravity of the battery cell 2 can be guaranteed.
  • the connecting assembly 5 provides an upward force to the mounting beam 4 .
  • the specific selection of the connector 52 is not limited, for example, it may be a bolt, a rivet, a pin, or the like.
  • the connecting assembly 5 may further include: a third sealing member 56 , the third sealing member 56 is sleeved outside the rod portion 522 and sandwiched between the head portion 521 and the convex portion 522 . Between the platforms 513 , that is, the third sealing member 56 is located between the head 521 (the upper end) and the boss 513 (the lower end), and surrounds the rod portion 522 .
  • the third sealing member 56 may be embedded in the boss 513 or the head 521 .
  • the sealing performance of the joint between the connecting member 52 and the sleeve 51 can be improved, and water can be prevented from being poured into the interior of the vehicle body from the cylindrical cavity 510 of the sleeve 51 upwards.
  • the second sealing member 55 and the third sealing member 56 the complete sealing of the battery pack 100 after being connected to the vehicle is achieved, and the failure of the body seal after the threaded hole is opened in the frame of the vehicle and the connection of the battery pack 100 is avoided. , to avoid the water flow into the body when the vehicle is wading.
  • the mounting beam 4 may further include a bottom beam portion 42 .
  • the bottom beam portion 42 is connected to the lower end of the main beam portion 41 and supported on the bottom plate.
  • the sleeve 51 further includes a bottom edge portion 512 connected to the lower end of the sleeve portion 511 and supported under the mounting beam 4 to constrain the sleeve portion 511 below the top plate 3 . Therefore, since the mounting beam 4 is not completely located above the bottom plate 1, but includes the bottom beam portion 42 located below the bottom plate 1, the action point of the mounting beam 4 exerting force on the bottom plate 1 is not located above the bottom plate 1, but is located at the bottom plate 1.
  • the sleeve 51 since the sleeve 51 includes the bottom edge 512 supported under the mounting beam 4 , the sleeve 51 can be simply and effectively matched with the mounting beam 4 , and the upward action of the connecting assembly 5 to the mounting beam 4 can be improved. The reliability of the force can avoid the problem that the connecting assembly 5 moves upward relative to the mounting beam 4 and is separated from the mounting beam 4 . Furthermore, by providing the bottom beam portion 42 and the bottom edge portion 512 , the sleeve portion 511 can be restrained below the top plate 3 simply and reliably. Of course, the present application is not limited to this, and the sleeve portion 511 can also be restricted under the top plate 3 in other ways. For example, the upper end surface of the sleeve portion 511 can be used to stop under the bottom surface of the top plate 3, etc., which will not be repeated here. .
  • the length direction of the mounting beam 4 is the length direction of the battery pack 100 (the F1 direction shown in FIG. 12 is the battery pack 100 ).
  • the width direction of the mounting beam 4 is the width direction of the battery pack 100 (the F2 direction as shown in FIG. 12 is the width direction of the battery pack 100 )
  • the mounting beam 4 is located in the width direction of the battery pack 100 central location.
  • the thickness direction of the mounting beam 4 and the thickness direction of the battery pack 100 are both vertical directions (the F3 direction shown in FIG. 12 is the thickness direction of the battery pack 100 ).
  • the mounting beam 4 is the central longitudinal beam of the battery pack 100, so that the connection stability between the central position of the battery pack 100 and the installation point in the application scenario can be improved, and the vibration problem of the central position of the battery pack 100 relative to the installation point in the application scenario can be improved, And by setting the mounting beam 4 as the central longitudinal beam, the anti-vibration effect and the overall structural reliability of the battery pack 100 can also be improved.
  • the tray 101 includes the side beam 6 and the bottom plate 1, first install the mounting beam 4 on the tray 101, and then assemble the sleeve 51 with the mounting beam 4 from bottom to top, in conjunction with FIG. 2
  • the bottom edge portion 512 of the bottom of the sleeve 51 and the bottom beam portion 42 of the mounting beam 4 are sealed by arc welding, but it is not limited to this, for example, it can also be sealed by gluing.
  • cover the first sealing member 54 on the top of the sleeve 51 cover the structural glue 7 to the bottom of the cell 2 , and then load it into the tray 101 from top to bottom.
  • the top of the battery core 2 is coated with thermally conductive adhesive 8, and with reference to Figure 12, the top of the surrounding side beams 6 is coated with annular sealant 9 to achieve edge sealing between the tray 101 and the top plate 3, and then assemble the top plate 3 to the battery.
  • the top plate 3 and the battery core 2 are bonded by the thermally conductive adhesive 8. Referring to FIG. 13, the surrounding edges of the top plate 3 and the surrounding beams 6 of the tray 101 are fixed by rivets 61.
  • the vehicle 1000 includes: a vehicle body 200 and a battery pack 100 .
  • the battery pack 100 is the battery pack 100 according to the embodiment of the first aspect or the second aspect of the present application, and the battery pack 100 is connected to the vehicle body through the connecting assembly 5 200, for example, a frame and the like connected to the vehicle body 200 can be understood.
  • the connecting assembly 5 200 for example, a frame and the like connected to the vehicle body 200 can be understood.

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Abstract

一种电池包(100)和具有其的车辆(1000)，电池包(100)包括：电芯(2)；底板(1)，底板(1)设于电芯(2)下方，以支撑电芯(2)；顶板(3)，顶板(3)设于电芯(2)上方；安装梁(4)，安装梁(4)包括主梁部(41)和底梁部(42)，主梁部(41)位于底板(1)和顶板(3)之间，底梁部(42)连接在主梁部(41)的下端，且支撑在底板(1)的下方；以及连接组件(5)，连接组件(5)用于将电池包(100)安装至应用场景中的安装点，连接组件(5)与安装梁(4)配合，以在电池包(100)安装至应用场景中的安装点时向安装梁(4)提供向上的作用力。

Description

电池包和具有其的车辆
相关申请的交叉引用
本申请要求“比亚迪股份有限公司”于2020年10月30日提交的、名称为“电池包和具有其的车辆”的、中国专利申请号“202011194507.7”的优先权。
技术领域
本申请涉及电池包技术领域，尤其是涉及一种电池包和具有其的车辆。
背景技术
相关技术中的电池包，通过连接装置固定在车体上，其中，电池包包括安装梁和底板，安装梁连接在底板的上方且与连接装置相连，电芯支撑在底板上，此时电芯会对给底板施加向下的作用力；但是，由于位于底板上方的安装梁受到的是连接装置提供的向上的作用力，而底板则受到电芯向下的作用力，从而容易发生安装梁与底板连接失效的问题。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请在于提出一种电池包，所述电池包可以改善安装梁与底板发生分离的问题。
本申请还提出一种具有上述电池包的车辆。
根据本申请第一方面实施例的电池包，包括：电芯；底板，所述底板设于所述电芯下方，以支撑所述电芯；顶板，所述顶板设于所述电芯上方；安装梁，所述安装梁包括主梁部和底梁部，所述主梁部位于所述底板和所述顶板之间，所述底梁部连接在所述主梁部的下端，且支撑在所述底板的下方；以及连接组件，所述连接组件用于将所述电池包安装至应用场景中的安装点，所述连接组件与所述安装梁配合，以在所述电池包安装至应用场景中的安装点时向所述安装梁提供向上的作用力。
根据本申请实施例的电池包，由于安装梁并不是完全位于底板上方，而是包括位于底板下方的底梁部，使得安装梁对于底板施力的作用点并不是位于底板上方，而是位于底板的下方，从而底板在电芯的重力作用下，只会与安装梁连接的更加紧密，不会与安装梁发生分离，进而提高了安装梁对底板支撑的可靠性和有效性，提高安装梁与底板配合的牢固性和稳定性。
在本申请的一些示例中，所述连接组件为多个且沿所述安装梁的长度方向间隔开设置。
在本申请的一些示例中，所述连接组件包括：套筒，所述套筒包括套筒部和底沿部，所述套筒部沿上下方向穿设于所述安装梁，所述底沿部连接在所述套筒部的下端，且支撑在所述底梁部的下方。
在本申请的一些示例中，所述套筒内具有凸台，所述连接组件还包括：连接件，所述连接件包括头部和杆部，所述头部连接在所述杆部的下端，所述头部支撑在所述凸台的下方，所述杆部贯穿所述套筒和所述顶板且所述杆部的上端位于所述顶板上方。
在本申请的一些示例中，所述连接组件还包括：第一密封件，所述套筒包括连接部，所述连接部连接在所述套筒部的上端且贯穿所述顶板，所述套筒部的外径大于所述连接部的外径，所述第一密封件套设于所述连接部外且夹设在所述套筒部与所述顶板之间。
在本申请的一些示例中，所述连接组件还包括螺母，所述连接部的至少位于所述顶板上方的部分的外周面上具有外螺纹，所述螺母位于所述顶板的上方且螺纹套接于所述连接部外。
在本申请的一些示例中，所述连接组件还包括第二密封件，所述第二密封件位于所述螺母的顶部且环绕所述螺母的内孔。
在本申请的一些示例中，所述螺母的顶部具有遮挡部，所述遮挡部为环形且位于所述连接部的上方，以遮挡所述连接部与所述螺母的螺纹配合处。
在本申请的一些示例中，所述连接组件还包括第三密封件，所述第三密封件套设于所述杆部外且夹设在所述头部与所述凸台之间。
在本申请的一些示例中，所述底梁部包括中心部和外周部，所述外周部环绕所述中心部设置，所述中心部的厚度大于所述外周部的厚度，所述底沿部支撑在所述中心部的下方。
在本申请的一些示例中，所述底梁部还包括过渡部，所述过渡部连接在所述中心部和所述外周部之间，且所述过渡部的厚度从所述中心部到所述外周部的方向逐渐减小，所述中心部的顶面与所述外周部的顶面平齐，所述中心部的底面与所述外周部的底面通过所述过渡部的底面平滑过渡相连。
在本申请的一些示例中，所述底梁部的外缘顶壁具有沉槽，所述沉槽的外侧面敞开，所述底板搭接并固定于所述沉槽的内壁上。
在本申请的一些示例中，所述安装梁的宽度方向上的两侧分别设有所述电芯。
在本申请的一些示例中，所述电池包包括围绕所述底板设置的多个边梁，所述多个边梁与所述底板连接形成托盘，所述多个边梁环绕成边框，所述电芯和所述安装梁均设于所述边框内。
在本申请的一些示例中，所述电芯粘接在所述底板上。
在本申请的一些示例中，所述顶板为冷板且与所述电芯粘接。
在本申请的一些示例中，所述安装梁为空心梁，所述空心梁内设有加强筋，所述加强筋沿所述安装梁的长度方向延伸，且所述加强筋为多条且沿上下方向间隔开地布置在所述主梁部内。
在本申请的一些示例中，所述底梁部的外缘顶壁具有沉槽，所述沉槽的外侧面敞开，所述底板搭接并固定于所述沉槽的内壁上。
在本申请的一些示例中，所述安装梁还包括顶梁部，所述顶梁部连接在所述主梁部的上端且支撑在所述顶板的下方，所述套筒部沿上下方向延伸且穿设于所述安装梁，所述套筒部的上端支撑在所述顶梁部的下方。
根据本申请第二方面实施例的车辆，包括车体和电池包，所述电池包为根据本申请第一方面实施例的电池包，所述连接组件连接至所述车体。
根据本申请的车辆，通过设置上述第一方面实施例的电池包，从而提高了车辆的整体性能。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
图1是根据本申请一个实施例的电池包的剖视图；
图2是图1中所示F1处的放大图；
图3是图1中所示的托盘的剖视图；
图4是图3中所示F2处的放大图；
图5是根据本申请另一个实施例的电池包的剖视图；
图6是图5中所示F3处的放大图；
图7是根据本申请另一个实施例的电池包的剖视图；
图8是图7中所示F4处的放大图；
图9是根据本申请另一个实施例的电池包的剖视图；
图10是图9中所示F5处的放大图；
图11是图9中所示F6处的放大图；
图12是根据本申请一个实施例的电池包的爆炸图；
图13是图12中所示的电池包的装配图；
图14是根据本申请一个实施例的车辆的示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
下文的公开提供了许多不同的实施例或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或字母。这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的可应用于性和/或其他材料的使用。
下面，参照附图，描述根据本申请第一方面实施例的电池包100。
如图1所示，电池包100包括：底板1、电芯2和顶板3，结合图2，电芯2设于底板1上方，顶板3设于电芯2上方。也就是说，顶板3位于底板1的上方，电芯2位于底板1的上方和顶板3的下方之间。其中，底板1设于电芯2下方，以支撑电芯2。需要说明的是，本文所述的“上”、“下”方位名词是基于电池包100安装于应用场景中而言的，例如，当将电池包100安装于车辆1000的车体200时，上下方向指的是车辆1000的上下方向，即车辆1000的顶部为“上”，车辆1000的底部为“下”。
如图2和图3所示，电池包100还包括安装梁4，安装梁4包括主梁部41和底梁部42，主梁部41位于底板1和顶板3之间，底梁部42连接在主梁部41的下端，且支撑在底板1的下方。这里，需要说明的是，底梁部42支撑在底板1的下方指的是，底梁部42位于底板1的下方以直接或者间接支撑底板1。此外，还需要说明的是，在本申请的描述中，当一者“支撑”另一者时，一者与另一者之间可以接触、也可以非接触，并且一者与另一者之间可以有固定连接关系、也可以没有固定连接关系。
如图1和图2所示，电池包100还包括连接组件5，连接组件5用于将电池包100安装至应用场景中的安装点，即通过设置连接组件5，将电池包100连接至应用场景中的安装位置，例如当电池包100应用于车辆1000时，连接组件5可以连接至车辆1000的车体200，此时，安装点位于车体200上。但是，需要说明的是，电池包100的应用场景不限于车辆1000，例如还可以应用在无人机、储能设备等应用场景。
如图1和图2所示，连接组件5与安装梁4配合，以在电池包100安装至应用场景中的安装点时向安装梁4提供向上的作用力。需要说明的是，连接组件5与安装梁4配合的具体配合方式不限，只要能够满足上述“在电池包100安装至应用场景中的安装点时向安装梁4提供向上的作用力”的功能即可。例如，连接组件5可以与安装梁4卡接、插接、搭接、过盈配合、螺纹连接、焊接、或采用连接件固定连接等等，这里不作赘述。此外，连接组件5与安装梁4、底板1、以及顶板3的相对位置不限，例如连接组件5可以位于底板1和顶板3之间，还可以向下穿出底板1，还可以向上穿出顶板3等等，这里不作赘述。
具体而言，通过设置连接组件5，可以将电池包100连接至应用场景，以使电池包100实现安装或提高电池包100的安装稳定性，例如在本申请的一些实施例中，当电池包100安装于车辆1000时，连接组件5可以连接至车体200的车架，此时，如果电池包100同时还通过其他安装结构与车体200相连，则通过设置连接组件5，可以提高电池包100的安装稳定性，而如果电池包100同时不再通过其他安装结构与车体200相连，则通过设置连接组件5可以实现电池包100的吊装。
由此，根据本申请实施例的电池包100，由于安装梁4包括支撑在底板1的下方的底梁部42，从而使得底板1位于底梁部42的上方，这样，当连接组件5与安装场景中的安装点(例如车体)相连时，在电芯2以及电池包100的其他结构件的自身重力等的作用下，连接组件5向安装梁4提供向上的作用力，此时，安装梁4可以通过底梁部42向位于其上方 的底板1提供支撑力，从而提高安装梁4对底板1支撑的可靠性，提高安装梁4与底板1配合的牢固性和稳定性，避免安装梁4与底板1分离。
在本申请的一些实施例中，电芯2粘接在底板1上，例如通过图2中所示的结构胶7粘接。由此，在电芯2的重力等的向下作用下，电芯2对底板1施加向下的力，以使底板1与安装梁4压紧，保证安装梁4与底板1配合的可靠性。并且，通过电芯2与底板1的粘接，底板1可以可靠地支撑电芯2。
在本申请的一些实施例中，顶板3为冷板且与电芯2粘接，例如通过图2中所示的导热胶8粘接。由此，可以通过顶板3为电芯2调节温度，以保证电池包100可靠工作。由此，通过安装梁4向底板1提供向上的作用力，从而可以有效地避免电芯2相对顶板3向下脱离，发生粘接失效的问题。
发明人发现，相关技术中的一些电池包，不具有安装梁，用于与车体相连的连接装置直接固定在顶板上，在电芯的自重作用下，电芯将该向下的作用力传递给顶板，此时，连接装置会向顶板提供向上的作用力，从而会造成顶板与电芯之间的胶水失效，发生电芯相对顶板脱落的问题。为了解决该技术问题，相关技术中的另外一些电池包，设置安装梁，但是安装梁全部位于底板的上方，且通过焊接或粘接等方式与底板固定相连，此时电芯会对给底板施加向下的作用力；但是，由于位于底板上方的安装梁受到的是连接装置提供的向上的作用力，而底板则受到电芯向下的作用力，从而容易发生安装梁与底板连接失效的问题。
根据本申请实施例的电池包100，由于安装梁4并不是完全位于底板1上方，而是包括位于底板1下方的底梁部42，使得安装梁4对于底板1施力的作用点并不是位于底板1上方，而是位于底板1的下方，从而底板1在电芯2的重力等的向下作用下，只会与安装梁4连接的更加紧密，不会与安装梁4分离，进而提高了安装梁4对底板1支撑的可靠性和有效性，提高安装梁4与底板1配合的牢固性和稳定性。
在本申请的一些实施例中，如图2所示，连接组件5包括套筒51，套筒51包括套筒部511和底沿部512，套筒部511沿上下方向穿设于安装梁4，底沿部512连接在套筒部511的下端，且支撑在底梁部42的下方。这里，需要说明的是，底沿部512支撑在底梁部42的下方指的是，底沿部512位于底梁部42的下方以直接或者间接支撑安装梁4。
由此，连接组件5可以简单且有效地实现与安装梁4的配合，且向安装梁4提供向上的作用力。并且，由于套筒51包括支撑在安装梁4的下方的底沿部512，从而可以提高连接组件5向安装梁4提供向上的作用力的可靠性，避免连接组件5相对安装梁4向上运动、发生与安装梁4脱离的问题，提高连接组件5的工作可靠性和有效性。
需要说明的是，在本实施例中，套筒51与顶板3的相对位置关系不限，例如，套筒51的上端可以位于顶板3的下方，又例如，套筒51的上端可以穿设于顶板3以位于顶板3的上方。此外，在本申请的一些实施例中，套筒51可以直接与应用场景中的安装点连接，从而将电池包100安装至应用场景中的安装点，例如套筒51可以通过过盈配合、螺纹连接、焊接、或采用连接件固定连接等方式与应用场景中的安装点连接，此时，可以省去后文所述的连接件52。
在本申请的一些实施例中，如图2所示，套筒51内具有凸台513，连接组件5还包括连接件52，连接件52包括头部521和杆部522，头部521连接在杆部522的下端，头部521支撑在凸台513的下方，杆部522贯穿套筒51和顶板3且杆部522的上端位于顶板3上方，也就是说，杆部522向上穿过套筒51和顶板3。由此，杆部522的上端可以与车体等安装点相连，从而简单且有效地实现连接组件5与应用场景中的安装点相连，使得连接组件5向安装梁4提供向上的作用力。
需要说明的是，连接件52的具体选型不限，例如可以是螺栓、铆钉、销钉等。此外，需要说明的是，凸台513的具体构造不限。例如在图6所示的示例中，套筒51内可以形成有二级阶梯孔，二级阶梯孔包括上孔和下孔，上孔的孔径小于下孔的孔径，上孔的下端和 下孔的上端之间形成的台阶面构成凸台513的下表面。又例如在其他示例中(图未示出该示例)，套筒51内还可以形成环形凸台，套筒51内形成有位于环形凸台上方的上孔、位于环形凸台下方的下孔、以及环形凸台的内环限定出的环孔，上孔的孔径和下孔的孔径均大于环孔的孔径，环形凸台的下端面构成凸台513的下表面。
例如在图2所示的示例中，当杆部522的上端与车体相连时，在电池包100的自身重力等的向下作用力下，头部521通过凸台513对套筒51提供向上的作用力，套筒51通过底沿部512将该向上的作用力传递给安装梁4的底梁部42，安装梁4再通过底梁部42将该向上的作用力传递给底板1，由于底板1用于支撑电芯2，电芯2的重力与安装梁4提供给底板1的向上的作用力，使得底板1与安装梁4之间连接处压紧，套筒51对电池包100的作用力是由下至上的，其作用力是从电池包100底部进行提供，而非从电池包100上方对电池包100提供向上的提力，顶板3未受向上的提力，避免了顶板3与电芯2之间胶水局部区域应力集中，发生顶板3与电芯2分离的问题。
需要说明的是，连接件52主要用于将电池包100连接至应用场景中的安装点，如连接至车体中的车架，实现电池包100与整车的连接固定，连接件52除了穿设于套筒51之外，与电池包100的其他组成部件之间可以无其他连接关系，电池包100在单独出货时可以无需搭载该连接件52，连接件52的存在与否不影响电池包100的密封，从而提高了电池包100的密封性与可靠性。
在本申请的一些实施例中，如图1所示，连接组件5可以为多个且沿安装梁4的长度方向间隔开设置。由此，可以分散应力，降低每个连接组件5的受力，从而进一步提高连接组件5的工作可靠性。
例如在图3所示的具体示例中，安装梁4上可以设有沿其长度方向间隔开设置的多个安装孔40，每个安装孔40均沿上下方向贯安装梁4，每个安装孔40处分别配合有一个连接组件5，从而简单且有效地装配多个连接组件5，且保证各个连接组件5的位置可靠有效，即利用安装孔40的定位与限位，可以提高连接组件5的装配效率和工作可靠性。
此外，在本申请的一些实施例中，如图3和图4所示，为了实现减重，可以将安装梁4设置为空心梁，且空心梁内可以设置加强筋44等，从而不但可以实现减重，还可以保证安装梁4的结构可靠性。例如在图3和图4所示的示例中，加强筋44可以沿安装梁4的长度方向延伸，且加强筋44可以为多条且沿上下方向间隔开地布置在主梁部41内。
在本申请的一些实施例中，如图2和图4所示，底梁部42包括中心部421和外周部422，外周部422环绕中心部421设置，中心部421的厚度大于外周部422的厚度，底沿部512支撑在中心部421的下方。由此，一方面可以满足安装梁4的减重要求，另一方面可以提高安装梁4主要受力位置的结构强度和刚度，避免安装梁4发生受力变形问题。
在本申请的一些实施例中，如图2和图4所示，底梁部42还包括过渡部423，过渡部423连接在中心部421和外周部422之间，且过渡部423的厚度从中心部421到外周部422的方向逐渐减小，中心部421的顶面与外周部422的顶面平齐，中心部421的底面与外周部422的底面通过过渡部423的底面平滑过渡相连。
由此，可以保证底梁部42的上表面大体为平面，以保证其上方的多个电芯2可以并排等高设置，另一方面，可以避免底梁部42的截面发生突变，突变处由于应力集中，发生断裂等问题，从而保证底梁部42的结构可靠性。
在本申请的一些实施例中，结合图4，底梁部42的外缘顶壁具有沉槽424，沉槽424的外侧面敞开，即沉槽424向下凹入形成，且沉槽424的远离底梁部42中心的一侧表面敞开，底板1搭接并固定于沉槽424的内壁上。这里，需要说明的是，底板1搭接于沉槽424的内壁上，指的是，底板1的局部搭接在沉槽424的内壁上。底板1固定于沉槽424的内壁上指的是，底板1与沉槽424的内壁之间具有固定连接关系，例如可以是焊接等等。
由此，通过在底梁部42的外缘设置与底板1搭接的沉槽424，从而有利于底板1与底梁部42的焊接，例如可以采用搅拌摩擦焊，以保证焊接效果不会对电池包100产生不利影 响，例如不会在底梁部42的外缘产生外露的焊缝等等，并且能够利用沉槽424起到装配定位的效果，即在焊接之前，利用沉槽424快速实现底梁部42与底板1配合到位。当然，本申请不限于此，在本申请的其他实施例中，底梁部42上也可以不设置沉槽424，此时，也可以采用其他方式连接底板1和底梁部42，这里不作赘述。
在本申请的一些实施例中，如图1和图3所示，安装梁4的宽度方向上的两侧分别设有电芯2(如图1中所示的F2方向为安装梁4的宽度方向)，也就是说，安装梁4的宽度一侧设有至少一个电芯2，安装梁4的宽度另一侧也设有至少一个电芯2。由此说明，安装梁4并不是位于电池包100的侧边位置，从而可以保证电池包100非侧边位置与应用场景中安装点的连接稳定性，改善电池包100在非侧边位置相对应用场景中安装点的振动问题。
需要说明的是，安装梁4的数量不限，可以为一个或者多个，当安装梁4为一个时，安装梁4宽度两侧的电芯2的数量可以相等或者不等，当安装梁4为多个时，每个安装梁4的横向两侧分别设有电芯2，从而使得相邻两个安装梁4之间也具有电芯2。
在本申请的一些实施例中，如图1和图3所示，电池包100包括围绕底板1设置的多个边梁6，多个边梁6与底板1连接形成托盘101，多个边梁6环绕成边框，也就是说，电池包100包括托盘101，托盘101包括底板1和位于底板1周边的多个边梁6，多个边梁6环绕成边框，边框围绕底板1设置，电芯2和安装梁4均设于边框内。由此说明，安装梁4并不是位于电池包100的侧边位置，从而可以保证电池包100非侧边位置与应用场景中安装点的连接稳定性，改善电池包100在非侧边位置相对应用场景中安装点的振动问题。
例如在一个具体示例中，边梁6为四个，四个边梁6可以围成方框，底板1位于方框的底部，安装梁4为至少一个且位于四周边梁6限定出的方框内。由此说明，安装梁4并不是位于电池包100的侧边位置，从而可以保证电池包100非侧边位置与应用场景中安装点的连接稳定性，改善电池包100在非侧边位置相对应用场景中安装点的振动问题。当然，本申请不限于此，边梁6不限于四个，例如还可以多于四个或少于四个，此外，边梁6环绕成的边框不限于方框，例如还可以是其他多边形框。
在一些具体示例中，当安装梁4为一个时，底板1可以包括两个子板且两个子板分别位于安装梁4的宽度方向的两侧，从而方便装配，当安装梁4为多个，且多个安装梁4沿第一方向间隔开排列时，底板1可以包括沿第一方向间隔开排列的多个子板，且子板的数量比安装梁4的数量多1，从而可以保证每个安装梁4的宽度两侧分别设有一个子板，且相邻的两个安装梁4之间共置一个子板。其中，第一方向可以为电池包100的长度方向或电池包100的宽度方向。
在本申请的一些实施例中，如图1和图3所示，安装梁4的长度方向为电池包100的长度方向(如图1中所示的F1方向为电池包100的长度方向)，安装梁4的宽度方向为电池包100的宽度方向(如图1中所示的F2方向为电池包100的宽度方向)，安装梁4位于电池包100的宽度方向上的中央位置。需要说明的是，安装梁4的厚度方向和电池包100的厚度方向均为上下方向(如图1中所示的F3方向)。由此，安装梁4为电池包100的中心纵梁，从而可以提升电池包100中心位置与应用场景中安装点的连接稳定性，改善电池包100中心位置相对应用场景中安装点的振动问题，并且通过将安装梁4设置为中心纵梁，还可以提升电池包100的抗振效果和整体结构可靠性。
当然，本申请不限于此，在本申请的其他实施例中，安装梁4的长度方向为电池包100的宽度方向，安装梁4的宽度方向为电池包100的长度方向，安装梁4位于电池包100的长度方向上的中央位置。由此，安装梁4为电池包100的中心横梁，从而可以提升电池包100中心位置与应用场景中安装点的连接稳定性，改善电池包100中心位置相对应用场景中安装点的振动问题，并且通过将安装梁4设置为中心横梁，还可以提升电池包100的抗振效果和整体结构可靠性。
相关技术中的电池包，一般通过电池包的长度或宽度方向两侧的边梁上的吊耳与整车车架固定，但由于两侧固定点距离较远，电池包较重，在行车状态下电池包的中部易上下振 动，即离固定点越远区域，振动幅度越大，振动易导致结构损坏或形成噪音。而根据本申请实施例的电池包100，通过将安装梁4设置在电池包100的宽度中心位置且沿电池包100的长度方向延伸，并在安装梁4上设置沿安装梁4的长度方向间隔开分布的多个连接组件5，以使电池包100的中心部位与车体的车架相连，从而可以有效提升电池包100和整车强度，整车利用电池包100提高了车架抗挤压强度，电池包100利用车架提高了包体振动模态，避免了电池包100中部振动幅度大的弊端。
需要说明的是，根据本申请第一方面实施例的电池包100的其他构成，均可以参考后文所述的第二方面实施例的电池包100进行设置，以使得本申请第一方面实施例的电池包100的性能更优。例如在本申请第一方面实施例的一些电池包100中，连接组件5还可以包括：螺母53、第一密封件54、第二密封件55、第三密封件56等，这里不作赘述。此外，根据本申请第一方面实施例的电池包100的装配步骤也可以参照后文所述的第二方面实施例的电池包100的装配步骤进行，这里也不作赘述。
下面，参照附图，描述根据本申请第二方面实施例的电池包100。
如图5和图6所示，电池包100包括：底板1、电芯2和顶板3，电芯2设于底板1上方，顶板3设于电芯2上方。也就是说，顶板3位于底板1的上方，电芯2位于底板1的上方和顶板3的下方之间。其中，底板1设于电芯2下方，以支撑电芯2。需要说明的是，本文所述的“上”、“下”方位名词是基于电池包100安装于应用场景中而言的，例如，当将电池包100安装于车辆1000的车体200时，上下方向指的是车辆1000的上下方向，即车辆1000的顶部为“上”，车辆1000的底部为“下”。
在本申请的一些实施例中，如图5和图6所示，电池包100还可以包括连接组件5，连接组件5用于将电池包100安装至应用场景中的安装点，即通过设置连接组件5，将电池包100连接至应用场景中的安装位置，例如当电池包100应用于车辆1000时，连接组件5可以连接至车辆1000的车体200，此时，安装点位于车体200上。但是，需要说明的是，电池包100的应用场景不限于车辆1000，例如还可以应用在无人机、储能设备等应用场景。
具体而言，通过设置连接组件5，可以将电池包100连接至应用场景，以使电池包100实现安装或提高电池包100的安装稳定性，例如在本申请的一些实施例中，当电池包100安装于车辆1000时，连接组件5可以连接至车体200的车架，此时，如果电池包100同时还通过其他安装结构与车体200相连，则通过设置连接组件5，可以提高电池包100的安装稳定性，而如果电池包100同时不再通过其他安装结构与车体200相连，则通过设置连接组件5可以实现电池包100的吊装。
如图5和图6所示，连接组件5包括套筒51和螺母53，套筒51包括套筒部511和连接部514，套筒部511沿上下方向延伸(可以是沿上下方向竖直延伸，也可以是沿上下方向倾斜延伸)且位于顶板3的下方，即套筒部511被限制在顶板3的下方，也就是说，套筒部511受自身结构和/或外界结构限制，不能够相对顶板3向上移出顶板3，连接部514连接在套筒部511的上端且贯穿顶板3，即连接部514的至少部分位于顶板3的上方，可以理解的是，结合图8，顶板3上具有允许连接部514穿出的避让孔30。
如图6和图8所示，连接部514的至少位于顶板3上方的部分的外周面上具有外螺纹，螺母53位于顶板3的上方且螺纹套接于连接部514外，以限制套筒51相对顶板3向下运动。可以理解的是，螺母53的内周面上具有内螺纹，通过内螺纹与外螺纹的配合，使得螺母53可以螺纹套接在连接部514的外周壁上，从而可以简单有效地实现螺母53和连接部514的配合，并且通过螺母53止抵在顶板3的上方，可以避免套筒51相对顶板3向下运动。
由此，根据本申请实施例的电池包100，由于连接部514的至少部分穿出到顶板3的上方，且外周面上具有外螺纹，从而在安装螺母53时，可视化强，可以简单、快捷、准确地完成螺母53的装配。
相关技术中，套筒整体位于顶板的下方，且开设内螺纹，采用具有外螺纹的锁紧螺栓从顶板上方向下穿入，以与套筒的内螺纹配合，防止套筒相对顶板下移，然而，这样则较难 保证套筒上端的内螺纹孔与顶板上的避让孔中心相对，使得锁紧螺栓在向下穿入顶板的避让孔后难以快速且准确地旋入套筒上端的内螺纹孔内，装配效率低，而且容易破坏套筒上端的内螺纹，致使结构失效。而根据本申请实施例的电池包100，由于套筒51具有穿出到顶板3上方的连接部514，且连接部514的外周面上具有外螺纹，从而在安装螺母53时，可视化强，可以简单、快捷、准确地完成螺母53的装配。
在本申请的一些实施例中，如图6和图8所示，连接组件5还包括：第一密封件54，套筒部511的外径大于连接部514的外径，第一密封件54套设于连接部514外，且夹设在套筒部511与顶板3之间，也就是说，第一密封件54位于套筒部511(的上端)与顶板3之间，且环绕连接部514。由此，通过设置第一密封件54，可以提高电池包100的密封性。可以理解的是，为了实现连接部514穿出到顶板3的上方，顶板3上需要开设避让孔30，使得电池包100不密封，通过设置环绕连接部514且位于顶板3和套筒部511上端之间的第一密封件54，在电池包100出货时(即电池包100未安装至整车时)就能可靠地实现避让孔30处的密封。此外，可以理解的是，当旋紧螺母53后，可以使得顶板3压紧第一密封件54，从而保证密封效果。
在本申请的一些实施例中，如图9和图10所示，螺母53的顶部具有遮挡部531，遮挡部531为环形且位于连接部514的上方，以遮挡连接部514与螺母53的螺纹配合处，从而可以利用遮挡部531，对螺母53与连接部514的螺纹配合处，以及第一密封件54等进行遮盖，形成保护，避免外部水滴滴落进入螺母53与连接部514的螺纹配合处，并流入第一密封件54形成积水，从而更加有效地保护电池包100。可以理解的是，电池包100外部一般处于盐雾环境下，积水带有腐蚀性，第一密封件54长期与积水接触，会降低第一密封件54的寿命，影响电池包100的密封。
在本申请的一些实施例中，如图10所示，当套筒部511的外径大于连接部514的外径，连接组件5还包括第一密封件54，第一密封件54套设于连接部514外，且夹设在套筒部511的上端与顶板3的底面之间时，在螺母53和顶板3抵接时，遮挡部531的底面与连接部514的顶面之间具有间隙S。由此，可以确保第一密封件54的压缩量，避免第一密封件54未压缩到合适等级，遮挡部531的底面就与连接部514的顶面发生接触、止抵，导致第一密封件54的压缩量过小造成密封等级不足的问题，从而提高密封效果。即螺母53拧紧后，螺母53的遮挡部531与套筒51的顶面之间仍留有间隙S，目的是确保螺母53拧紧面保持在螺母53的底面与顶板3的顶面之间接触的平面，从而确保螺母53压紧顶板3后，使顶板3向下压紧第一密封件54，实现顶板3与套筒51之间的密封。
在本申请的一些实施例中，如图8和图10所示，电池包100还包括安装梁4，安装梁4包括主梁部41和顶梁部43，主梁部41及顶梁部43均位于底板1和顶板3之间，顶梁部43连接在主梁部41的上端，且支撑在顶板3的下方，顶梁部43上具有配合孔431，套筒部511沿上下方向延伸且穿设于安装梁4，套筒部511的上端支撑在顶梁部43的下方，连接部514贯穿配合孔431，第一密封件54配合于配合孔431，且初始厚度大于顶梁部43的厚度，即装配时，第一密封件54的一部分位于配合孔431内、其余部分超出到配合孔431外，当装配到位后，第一密封件54可以被压缩以完全位于配合孔431内。由此，可以确保第一密封件54的压缩量，避免第一密封件54未压缩到合适等级，套筒部511的顶面就与顶梁部43的底面发生止抵，导致第一密封件54的压缩量过小造成密封等级不足的问题，并且可以在第一密封件54压缩到合适等级时，利用套筒部511的顶面与顶梁部43的底面发生止抵，避免第一密封件54的压缩量过大引起第一密封件54永久变量，甚至造成第一密封件54开裂，引发密封失效等问题。
也就是说，为确保第一密封件54被压缩至合适等级，第一密封件54自由状态的初始厚度应大于顶梁部43的厚度，当锁紧螺母53使得第一密封件54被压紧后，第一密封件54受力后厚度等于顶梁部43的厚度，本申请通过定义顶梁部43的厚度可实现对第一密封件54被压缩后的厚度的管控，第一密封件54的压缩量对第一密封件54的密封性能有着较大 关联性，如第一密封件54压缩比例过小，将导致密封失效，如第一密封件54压缩比例过大，将造成第一密封件54形成裂纹而失效，或降低第一密封件54使用寿命。
在本申请的一个具体示例中，为了确保第一密封件54的压缩量合适，螺母53锁附于套筒51的连接部514，通过螺母53下压顶板3，顶板3与安装梁4接触，安装梁4与套筒51通过焊接成为一个整体，在未锁紧螺母53之前，套筒部511的上端面与第一密封件54的底面的贴合面在高度上低于顶梁部43的底面，通过这两个面的高度落差可以确保第一密封件54的压缩量，避免第一密封件54压缩量过大引起第一密封件54永久变量(甚至造成第一密封件54开裂，引发密封失效)，也避免第一密封件54压缩量过小造成密封等级不满足的问题。
在本申请的一些实施例中，如图10所示，连接组件5还包括：第二密封件55，第二密封件55位于螺母53的顶部，且环绕螺母53的内孔，从而实现电池包100与应用场景中对应安装点之间的配合密封。例如图10所示的示例中，当螺母53包括遮挡部531时，第二密封件55可以位于遮挡部531的顶部。
此外，为了提高第二密封件55的配合可靠性和有效性，在本申请的一些实施例中，可以在螺母53的顶部设置凹槽，例如在图10所示的示例中，可以在遮挡部531的顶壁上设置凹槽，从而将第二密封件55的一部分嵌设于凹槽，这样，可以通过限定凹槽的槽深来限定第二密封件55的压缩量。
然而，相关技术中的电池包，只能实现自身密封，未能实现电池包与整车车架之间的连接密封。因整车车架上需要开设螺纹通孔与电池包固定孔连接，车架上开设螺纹通孔将导致车身此处密封失效。而本申请，通过在电池包100与车架贴合面区域增加第二密封件55实现了电池包100顶部与车架之间的连接密封。也就是说，通过在螺母53顶部增加第二密封件55，整车车架与电池包100锁紧贴合过程中，可对螺母53顶部的第二密封件55进行压缩贴合，从而实现电池包100顶部与车架之间的密封。
在本申请的一些实施例中，如图10所示，螺母53的顶面高于顶板3的顶面，可以理解的是，当螺母53包括遮挡部531时，遮挡部531的顶面为螺母53的顶面。由此，当电池包100与整车车架锁紧时，可通过螺母53的至少部分高于(即外凸于)顶板3的特点，限定顶板3与整车车架之间的相对距离，避免整车车架压到顶板3，造成顶板3变形的问题，从而可以有效地保护电池包100。
在本申请的一些实施例中，如图9和图11所示，套筒51内具有凸台513，连接组件5还包括：连接件52，连接件52包括头部521和杆部522，头部521连接在杆部522的下端，头部521支撑在凸台513的下方，杆部522向上穿过套筒51、顶板3和螺母53，也就是说，杆部522贯穿套筒51、顶板3和螺母53，且杆部522的上端位于螺母53的上方。由此，杆部522的上端可以与车体等安装点相连，从而简单且有效地实现连接组件5与应用场景中的安装点相连，并能够保证在电芯2的自身重力等的向下作用力下，连接组件5向安装梁4提供向上的作用力。需要说明的是，连接件52的具体选型不限，例如可以是螺栓、铆钉、销钉等。此外，关于本实施例的连接件52的其他特点和功能还可以参照上述第一方面实施例的电池包100的描述，这里不作赘述。
在本申请的一些实施例中，如图11所示，连接组件5还可以包括：第三密封件56，第三密封件56套设于杆部522外，且夹设在头部521与凸台513之间，也就是说，第三密封件56位于头部521(的上端)与凸台513(的下端)之间，且环绕杆部522。例如，第三密封件56可以嵌设于凸台513或头部521。由此，通过设置第三密封件56，可以提高连接件52与套筒51配合处的密封性，避免了水从套筒51的筒腔510向上一直灌入车身内部。
并且，通过设置第二密封件55和第三密封件56，实现了电池包100与整车连接后的彻底密封，避免了整车车架开设螺纹孔与电池包100连接后车身密封失效的情况，避免了车辆涉水时水流浸入车身内。
需要说明的是，根据本申请第二方面实施例的电池包100的其他构成，均可以参考上述 第一方面实施例的电池包100进行设置，以使得本申请第二方面实施例的电池包100的性能更优。
例如在本申请第二方面实施例的一些电池包100中，如图11所示，安装梁4还可以包括底梁部42，底梁部42连接在主梁部41的下端，且支撑在底板1的下方，套筒51还包括底沿部512，底沿部512连接在套筒部511的下端，且支撑在安装梁4的下方，以将套筒部511限制在顶板3的下方。由此，由于安装梁4并不是完全位于底板1上方，而是包括位于底板1下方的底梁部42，使得安装梁4对于底板1施力的作用点并不是位于底板1上方，而是位于底板1的下方，从而底板1在电芯2重力等的向下作用力下也不会也不易与安装梁4分离，进而提高了安装梁4对底板1支撑的可靠性，提高安装梁4与底板1配合的牢固性和稳定性。
而且，由于套筒51包括支撑在安装梁4的下方的底沿部512，套筒51可以简单且有效地实现与安装梁4的配合，而且可以提高连接组件5向安装梁4提供向上的作用力的可靠性，避免连接组件5相对安装梁4向上运动、发生与安装梁4脱离的问题。并且通过设置底梁部42和底沿部512，可以简单且可靠地将套筒部511限制在顶板3的下方。当然，本申请不限于此，还可以通过其他方式将套筒部511限制在顶板3的下方，例如，可以利用套筒部511的上端面止抵在顶板3的底面下方等等，这里不作赘述。
例如在本申请第二方面实施例的一些电池包100中，如图12和图13所示，安装梁4的长度方向为电池包100的长度方向(如图12中所示的F1方向为电池包100的长度方向)，安装梁4的宽度方向为电池包100的宽度方向(如图12中所示的F2方向为电池包100的宽度方向)，安装梁4位于电池包100的宽度方向上的中央位置。需要说明的是，安装梁4的厚度方向和电池包100的厚度方向均为上下方向(如图12中所示的F3方向为电池包100的厚度方向)。由此，安装梁4为电池包100的中心纵梁，从而可以提升电池包100中心位置与应用场景中安装点的连接稳定性，改善电池包100中心位置相对应用场景中安装点的振动问题，并且通过将安装梁4设置为中心纵梁，还可以提升电池包100的抗振效果和整体结构可靠性。
根据本申请第一方面和第二方面实施例的电池包100的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
下面，简单描述根据本申请第二方面实施例的电池包100的装配步骤。
结合图3和图4，准备托盘101，托盘101包括边梁6和底板1，先将安装梁4安装于托盘101，然后将套筒51从下往上与安装梁4进行装配，结合图2，套筒51底部的底沿部512与安装梁4的底梁部42的贴合面通过弧焊实现底部的密封，但不限于此，例如还可以通过涂胶实现密封等。然后结合图8，在套筒51顶部套上第一密封件54，接着参照图2，将电芯2底部涂结构胶7后，由上往下装入托盘101内，电芯2与底板1之间胶粘固定，电芯2顶部涂导热胶8，结合图12，四周的边梁6的顶部涂环形密封胶9实现托盘101与顶板3之间的边缘密封，再将顶板3装配至电芯2顶部，顶板3与电芯2通过导热胶8粘接，结合图13，顶板3四周边缘与托盘101的四周边梁6采用铆钉61固定。
下面，参照附图，描述根据本申请第三方面实施例的车辆1000。
如图14所示，车辆1000包括：车体200和电池包100，电池包100为根据本申请第一方面或第二方面实施例的电池包100，电池包100通过连接组件5连接至车体200，例如可以理解连接至车体200的车架等等。由此，通过设置根据本申请第一方面或第二方面实施例的电池包100，从而可以提高车辆1000的整体性能。
根据本申请实施例的车辆1000的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性 表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (20)

  1. 一种电池包(100)，其特征在于，包括：
    电芯(2)；
    底板(1)，所述底板(1)设于所述电芯(2)下方，以支撑所述电芯(2)；
    顶板(3)，所述顶板(3)设于所述电芯(2)上方；
    安装梁(4)，所述安装梁(4)包括主梁部(41)和底梁部(42)，所述主梁部(41)位于所述底板(1)和所述顶板(3)之间，所述底梁部(42)连接在所述主梁部(41)的下端，且支撑在所述底板(1)的下方；以及
    连接组件(5)，所述连接组件(5)用于将所述电池包(100)安装至应用场景中的安装点，所述连接组件(5)与所述安装梁(4)配合，以在所述电池包(100)安装至应用场景中的安装点时向所述安装梁(4)提供向上的作用力。
  2. 根据权利要求1所述的电池包(100)，其特征在于，所述连接组件(5)为多个且沿所述安装梁(4)的长度方向间隔开设置。
  3. 根据权利要求1或2所述的电池包(100)，其特征在于，所述连接组件(5)包括：
    套筒(51)，所述套筒(51)包括套筒部(511)和底沿部(512)，所述套筒部(511)沿上下方向穿设于所述安装梁(4)，所述底沿部(512)连接在所述套筒部(511)的下端，且支撑在所述底梁部(42)的下方。
  4. 根据权利要求3所述的电池包(100)，其特征在于，所述套筒(51)内具有凸台(513)，所述连接组件(5)还包括：
    连接件(52)，所述连接件(52)包括头部(521)和杆部(522)，所述头部(521)连接在所述杆部(522)的下端，所述头部(521)支撑在所述凸台(513)的下方，所述杆部(522)贯穿所述套筒(51)和所述顶板(3)且所述杆部(522)的上端位于所述顶板(3)上方。
  5. 根据权利要求3所述的电池包(100)，其特征在于，所述连接组件(5)还包括：第一密封件(54)，所述套筒(51)包括连接部(514)，所述连接部(514)连接在所述套筒部(511)的上端且贯穿所述顶板(3)，所述套筒部(511)的外径大于所述连接部(514)的外径，所述第一密封件(54)套设于所述连接部(514)外且夹设在所述套筒部(511)与所述顶板(3)之间。
  6. 根据权利要求5所述的电池包(100)，其特征在于，所述连接组件(5)还包括螺母(53)，所述连接部(514)的至少位于所述顶板(3)上方的部分的外周面上具有外螺纹，所述螺母(53)位于所述顶板(3)的上方且螺纹套接于所述连接部(514)外。
  7. 根据权利要求6所述的电池包(100)，其特征在于，所述连接组件(5)还包括第二密封件(55)，所述第二密封件(55)位于所述螺母(53)的顶部且环绕所述螺母(53)的内孔。
  8. 根据权利要求6所述的电池包(100)，其特征在于，所述螺母(53)的顶部具有遮挡部(531)，所述遮挡部(531)为环形且位于所述连接部(514)的上方，以遮挡所述连接部(514)与所述螺母(53)的螺纹配合处。
  9. 根据权利要求4所述的电池包(100)，其特征在于，所述连接组件(5)还包括第三密封件(56)，所述第三密封件(56)套设于所述杆部(522)外且夹设在所述头部(521)与所述凸台(513)之间。
  10. 根据权利要求3所述的电池包(100)，其特征在于，所述底梁部(42)包括中心部(421)和外周部(422)，所述外周部(422)环绕所述中心部(421)设置，所述中心部(421)的厚度大于所述外周部(422)的厚度，所述底沿部(512)支撑在所述中心部(421)的下方。
  11. 根据权利要求10所述的电池包(100)，其特征在于，所述底梁部(42)还包括过渡部(423)，所述过渡部(423)连接在所述中心部(421)和所述外周部(422)之间，且所述过渡部(423)的厚度从所述中心部(421)到所述外周部(422)的方向逐渐减小，所述中心 部(421)的顶面与所述外周部(422)的顶面平齐，所述中心部(421)的底面与所述外周部(422)的底面通过所述过渡部(423)的底面平滑过渡相连。
  12. 根据权利要求1-11中任一项所述的电池包(100)，其特征在于，所述底梁部(42)的外缘顶壁具有沉槽(424)，所述沉槽(424)的外侧面敞开，所述底板(1)搭接并固定于所述沉槽(424)的内壁上。
  13. 根据权利要求1-12中任一项所述的电池包(100)，其特征在于，所述安装梁(4)的宽度方向上的两侧分别设有所述电芯(2)。
  14. 根据权利要求13所述的电池包(100)，其特征在于，所述电池包(100)包括围绕所述底板(1)设置的多个边梁(6)，所述多个边梁(6)与所述底板(1)连接形成托盘(101)，所述多个边梁(6)环绕成边框，所述电芯(2)和所述安装梁(4)均设于所述边框内。
  15. 根据权利要求1-14中任一项所述的电池包(100)，其特征在于，所述电芯(2)粘接在所述底板(1)上。
  16. 根据权利要求1-15中任一项所述的电池包(100)，其特征在于，所述顶板(3)为冷板且与所述电芯(2)粘接。
  17. 根据权利要求1-16中任一项所述的电池包(100)，其特征在于，所述安装梁(4)为空心梁，所述空心梁内设有加强筋(44)，所述加强筋(44)沿所述安装梁(4)的长度方向延伸，且所述加强筋(44)为多条且沿上下方向间隔开地布置在所述主梁部(41)内。
  18. 根据权利要求1-17中任一项所述的电池包(100)，其特征在于，所述底梁部(42)的外缘顶壁具有沉槽(424)，所述沉槽(424)的外侧面敞开，所述底板(1)搭接并固定于所述沉槽(424)的内壁上。
  19. 根据权利要求3-11中任一项所述的电池包(100)，其特征在于，所述安装梁(4)还包括顶梁部(43)，所述顶梁部(43)连接在所述主梁部(41)的上端且支撑在所述顶板(3)的下方，所述套筒部(511)沿上下方向延伸且穿设于所述安装梁(4)，所述套筒部(511)的上端支撑在所述顶梁部(43)的下方。
  20. 一种车辆(1000)，其特征在于，包括：车体(200)和电池包(100)，所述电池包(100)为根据权利要求1-19中任一项所述的电池包(100)，所述连接组件(5)连接至所述车体(200)。
PCT/CN2021/105761 2020-10-30 2021-07-12 电池包和具有其的车辆 WO2022088753A1 (zh)

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