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WO2024221155A1 - Véhicule et son ensemble châssis - Google Patents

Véhicule et son ensemble châssis Download PDF

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Publication number
WO2024221155A1
WO2024221155A1 PCT/CN2023/090253 CN2023090253W WO2024221155A1 WO 2024221155 A1 WO2024221155 A1 WO 2024221155A1 CN 2023090253 W CN2023090253 W CN 2023090253W WO 2024221155 A1 WO2024221155 A1 WO 2024221155A1
Authority
WO
WIPO (PCT)
Prior art keywords
chassis assembly
side beam
along
support beam
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/090253
Other languages
English (en)
Chinese (zh)
Inventor
贺斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Contemporary Amperex Intelligence Technology Shanghai Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Contemporary Amperex Intelligence Technology Shanghai Ltd
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 Contemporary Amperex Technology Co Ltd, Contemporary Amperex Intelligence Technology Shanghai Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to PCT/CN2023/090253 priority Critical patent/WO2024221155A1/fr
Priority to CN202380064202.XA priority patent/CN119855757A/zh
Publication of WO2024221155A1 publication Critical patent/WO2024221155A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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

Definitions

  • the present application relates to the field of vehicle technology, and more particularly, to a vehicle and a chassis assembly thereof.
  • the structural strength of the chassis assembly has a significant impact on the driving comfort and safety of the vehicle. How to improve the structural strength of the chassis assembly is an urgent problem to be solved by those skilled in the art.
  • the present application provides a vehicle and a chassis assembly thereof, which can improve the structural strength of the chassis assembly.
  • an embodiment of the present application provides a chassis assembly of a vehicle, the chassis assembly comprising a frame, a first side beam, a second side beam, a guard plate assembly and a battery cell; the frame comprising a first support beam and a second support beam, the first support beam and the second support beam respectively extend in a first direction, and are spaced apart along a second direction, and the first direction and the second direction intersect; the first side beam and the second side beam extend in the second direction, and are spaced apart along the first direction, and are respectively connected to the first support beam and the second support beam; the guard plate assembly is connected to the first support beam, the second support beam, the first side beam and the second side beam, and is surrounded by the first support beam, the second support beam, the first side beam and the second side beam to form a receiving cavity; the battery cell is received in the receiving cavity.
  • the chassis assembly provided by the embodiment of the present application, by providing a first side beam and a second side beam, the first side beam and the second side beam are arranged at intervals along the first direction, and the first side beam and the second side beam are respectively connected to the first support beam and the second support beam, while improving the rigidity and strength of the chassis assembly of the vehicle, thereby improving the bearing capacity of the chassis assembly, the collision performance of the chassis assembly along the second direction can also be improved.
  • the first side beam and the second side beam can be used to limit the expansion of the battery cell, thereby improving the reliability of the battery cell.
  • the first side beam includes a first beam body and a first reinforcing beam, the first beam body encloses a first accommodating cavity, and the first reinforcing beam is disposed in the first accommodating cavity and connects two sides of the first beam body along the first direction.
  • This is beneficial to improving the structural strength and rigidity of the first side beam, thereby improving the overall structural strength and rigidity of the chassis assembly, and is beneficial to improving the bearing capacity of the first side beam along the first direction.
  • the first side beam can be used to withstand the expansion force of the battery cell along the first direction, thereby suppressing the expansion deformation of the battery cell along the first direction and improving the reliability of the battery cell.
  • the first side beam further includes a second reinforcement beam, and the second reinforcement beam is located in the first accommodating cavity.
  • the first reinforcing beam and the two sides of the first beam body along the third direction are connected, and the first direction, the second direction and the third direction intersect each other. This is beneficial to improving the structural strength and structural rigidity of the first side beam along the third direction, thereby improving the bearing capacity of the first side beam along the third direction, and thus, improving the structural strength and bearing capacity of the chassis assembly along the third direction.
  • the first side beam has a pipeline chamber extending through the second direction; the chassis assembly further includes a heat exchange pipeline, which is arranged in the pipeline chamber, and the heat exchange pipeline is used to flow through a fluid, and the fluid is used to exchange heat with the battery cell.
  • the pipeline chamber can limit the heat exchange pipeline, reducing the risk of the heat exchange pipeline falling off during the vibration of the chassis assembly.
  • the chassis assembly further includes an adapter, at least part of which is located outside the pipeline chamber and communicates with the heat exchange pipeline, and the adapter is used to connect the heat exchange hanging furnace with the pipeline outside the pipeline chamber.
  • the adapter can be used to connect the heat exchange pipeline inside the pipeline chamber with other pipelines outside the pipeline chamber to realize the circulation of the fluid in the heat exchange pipeline, and the adapter is used to make the connection more convenient and quick.
  • the first support beam includes a support beam body and a connecting beam
  • the connecting beam is arranged on one side of the first support beam along the second direction facing the second support beam
  • the end of the connecting beam along the first direction has a first inclined surface inclined relative to the first direction and the second direction
  • the end of the first side beam along the second direction has a second inclined surface inclined relative to the first direction and the second direction
  • the first inclined surface and the second inclined surface are connected to each other in a close fit, which is conducive to making the connection between the first side beam and the first support beam bear loads in both the first direction and the second direction, and is conducive to further improving the structural bearing capacity of the chassis assembly.
  • first inclined surface and the second inclined surface are connected by welding, which is beneficial to further improve the connection strength between the first side beam and the first support beam, thereby improving the structural strength of the chassis assembly.
  • the second side beam includes a second beam body and a third reinforcing beam, the second beam body encloses a second accommodating cavity, and the third reinforcing beam is disposed in the second accommodating cavity and connects two sides of the second beam body along the first direction.
  • This is beneficial to improving the structural strength and rigidity of the second side beam, thereby improving the bearing capacity of the second side beam.
  • the second side beam can also be used to reduce the risk of expansion and deformation of the battery cell, which is beneficial to improving the reliability of the battery cell.
  • the guard plate assembly includes a first cover plate and a second cover plate, the first cover plate and the second cover plate are respectively provided to cover the first support beam, the second support beam, the first side beam and the second side beam along the third direction, and the first direction, the second direction and the third direction intersect each other. In this way, it is beneficial to improve the convenience of assembling the battery on the chassis assembly.
  • an embodiment of the present application provides a vehicle, comprising a chassis assembly as in any embodiment of the first aspect.
  • the vehicle provided according to the embodiment of the present application has the same technical effect as the chassis assembly provided by any of the above embodiments, and thus will not be described in detail here.
  • FIG1 is a schematic structural diagram of a vehicle provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a partial structure of a battery in a chassis assembly provided in an embodiment of the present application
  • FIG3 is a schematic diagram of an exploded structure of a battery cell in a chassis assembly provided in an embodiment of the present application
  • FIG4 is a schematic structural diagram of a chassis assembly provided in an embodiment of the present application.
  • FIG5 is a front view of a chassis assembly provided by an embodiment of the present application with some structures omitted;
  • Fig. 6 is a schematic cross-sectional view of the structure along line A-A of Fig. 5;
  • Fig. 7 is another schematic cross-sectional view of the structure along A-A of Fig. 5;
  • FIG8 is a partial enlarged view of point B in FIG5;
  • FIG9 is a schematic structural diagram of another chassis assembly provided in an embodiment of the present application.
  • FIG10 is a front view of another chassis assembly provided by an embodiment of the present application with some structures omitted;
  • Fig. 11 is a schematic diagram of the cross-sectional structure along C-C of Fig. 10 .
  • the terms “installed”, “connected”, “connected”, and “attached” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • CTC Cell to Chassis
  • battery cells are assembled with other structural frames in the chassis assembly to form a battery, and some structural parts of the chassis assembly are used as part of the battery box to improve the space utilization of the chassis assembly, facilitate the installation of more battery cells, and increase the battery's energy storage.
  • CTC technology after the chassis assembly is assembled, there is a problem of insufficient rigidity.
  • the inventors have improved the structure of the chassis assembly of the vehicle.
  • the technical solution described in the embodiments of the present application is applicable to the chassis assembly and the vehicle using the chassis assembly.
  • the chassis assembly of the vehicle includes a frame, a guard plate assembly and a battery cell.
  • the frame includes a first support beam and a second support beam, the first support beam and the second support beam extend in a first direction respectively, and are arranged at intervals in a second direction, and the first direction and the second direction intersect.
  • the first side beam and the second side beam extend in the second direction and are respectively connected to the first support beam and the second support beam.
  • the guard plate assembly is connected to the first support beam, the second support beam, the first side beam and the second side beam, and is surrounded by the first support beam, the second support beam, the first side beam and the second side beam to form a receiving cavity.
  • the battery cell is accommodated in the receiving cavity.
  • the chassis assembly provided in the embodiment of the present application is beneficial to improving the connection strength between the first side beam and the second side beam and the first support beam and the second support beam respectively, thereby improving the overall structural strength of the chassis assembly by setting the first side beam and the second side beam, and setting the first side beam and the second side beam to connect the first support beam and the second support beam respectively.
  • a battery 10 is provided inside the vehicle 1.
  • the battery 10 may be provided at the bottom, head, or tail of the vehicle 1.
  • the battery 10 may be used to power the vehicle 1, for example, the battery 10 may be used as an operating power source for the vehicle 1.
  • the battery 10 may be assembled separately and then installed on the vehicle 1 , or, during the assembly process of the vehicle 1 , some structural parts of the vehicle 1 may be used as part of the housing of the battery 10 and assembled to form the battery 10 .
  • the vehicle 1 may further include a controller 1b and a motor 1a.
  • the controller 1b is used to control the battery 10 to supply power to the motor 1a, for example, to meet the power requirements of the vehicle 1 during starting, navigation and driving.
  • the battery 10 can not only serve as an operating power source for the vehicle 1, but also serve as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.
  • the battery 10 includes a battery cell (not shown in FIG2 ).
  • the battery 10 may also include a box for accommodating the battery cell.
  • the box is used to accommodate battery cells.
  • the box can be assembled during the assembly process of the vehicle 1, and at least part of the chassis assembly of the vehicle is used as a part of the box, which corresponds to CTC (Cell to Chassis, battery body integration) technology.
  • CTC Cell to Chassis, battery body integration
  • the battery 10 there can be one or more battery cells. If there are more than one battery cell, the battery cells can be connected in series, in parallel, or in a mixed connection. Mixed connection means that the battery cells are connected in series and in parallel. The battery cells can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the battery cells can be accommodated in the box. Alternatively, the battery cells can be first connected in series, in parallel, or in a mixed connection to form a battery module 20. The battery modules 20 are then connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box.
  • Fig. 3 is an exploded schematic diagram of a battery cell 30.
  • the battery cell 30 provided in the embodiment of the present application includes an electrode assembly 32 and a housing 31, wherein the housing 31 has a receiving cavity, and the electrode assembly 32 is received in the receiving cavity.
  • the housing 31 may include a shell 311 and an end cap 312, wherein the shell 311 is a hollow structure with one side open, and the end cap 312 covers the opening 311a of the shell 311 and forms a sealed connection to form a sealed space for accommodating the electrode assembly 32 and the electrolyte.
  • the electrode assembly 32 When assembling the battery cell 30 , the electrode assembly 32 may be placed in the housing 311 first, and then the end cap 312 may be closed on the opening of the housing 311 . Then, the electrolyte may be injected into the housing 311 through the electrolyte injection port on the end cap 312 .
  • the housing 31 may also be used to contain electrolyte, such as electrolyte.
  • the housing 31 may be in various structural forms.
  • FIG3 shows a schematic structural diagram of a battery cell provided in an embodiment of the present application.
  • the shell 311 can be in various shapes, such as a cylinder, a cuboid, etc.
  • the shape of the shell 311 can be determined according to the specific shape of the electrode assembly 32. For example, if the electrode assembly 32 is a cylindrical structure, the shell 311 can be selected as a cylindrical structure. If the electrode assembly 32 is a cuboid structure, the shell 311 can be selected as a cuboid structure. In FIG. 4, illustratively, the shell 311 and the electrode assembly 32 are both cuboid structures.
  • the shell 311 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, etc., and the embodiment of the present application does not impose any special restrictions on this.
  • Electrodes assemblies 32 There may be one or more electrode assemblies 32 housed in the housing 311. In Fig. 4, there are two electrode assemblies 32 housed in the housing 311.
  • the electrode assembly 32 further includes a positive electrode sheet, a negative electrode sheet, and a separator.
  • the electrode assembly 32 may be a wound structure formed by winding the positive electrode sheet, the separator, and the negative electrode sheet.
  • the electrode assembly 32 may also be a stacked structure formed by stacking the positive electrode sheet, the separator, and the negative electrode sheet.
  • the positive electrode sheet may include a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the negative electrode sheet may include a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the separator is between the positive electrode sheet and the negative electrode sheet, and is used to separate the positive electrode sheet from the negative electrode sheet.
  • the pole pieces are isolated to reduce the risk of short circuit between the positive pole piece and the negative pole piece.
  • the tabs in the electrode assembly 32 are divided into positive tabs and negative tabs.
  • the positive tabs may be the portion of the positive current collector that is not coated with the positive active material layer.
  • the negative tabs may be the portion of the negative current collector that is not coated with the negative active material layer.
  • the battery 10 provided in the embodiment of the present application has the same technical effect as the welding component 40 or the battery cell 30 provided in the embodiment of the present application, and will not be described in detail here.
  • the chassis assembly 20 of the vehicle 1 includes a frame 21, a guard plate assembly 50 and a battery cell 30.
  • the frame 21 includes a first support beam 211 and a second support beam 212, the first support beam 211 and the second support beam 212 extend along a first direction X, respectively, and are arranged at intervals along a second direction Y, and the first direction X and the second direction Y intersect.
  • the first side beam 41 and the second side beam 42 extend along the second direction Y, and are arranged at intervals along the first direction X, and are connected to the first support beam 211 and the second support beam 212, respectively.
  • the guard plate assembly 50 is connected to the first support beam 211, the second support beam 212, the first side beam 41 and the second side beam 42, and is surrounded by the first support beam 211, the second support beam 212, the first side beam 41 and the second side beam 42 to form a receiving cavity.
  • the battery cell 30 is accommodated in the receiving cavity.
  • the frame 21 is the main load-bearing component of the vehicle 1. It bears the weight of most of the structural parts of the vehicle 1, and thus has a high load-bearing capacity.
  • the first support beam 211 and the second support beam 212 of the frame 21 extend along the first direction X and are arranged at intervals along the second direction Y.
  • the first direction X intersects with the second direction Y.
  • the first direction X can be the longitudinal direction of the vehicle 1, and the second direction Y can be the lateral direction of the vehicle 1.
  • the first support beam 211 and the second support beam 212 can be respectively the sill beams on both sides of the frame 21 along the second direction Y. In this way, while the sill beams provide support for the body and other structural parts of the vehicle 1, the first support beam 211 and the second support beam 212 together with the first side beam 41 and the second side beam 42 form a partial structure of the battery 10 to support the battery cell 30.
  • the first support beam 211 and the second support beam 212 can also be two beam structures opposite to each other along the second direction Y of other parts of the frame 21.
  • first support beam 211 and the second support beam 212 of the frame 21 of the vehicle 1 as part of the battery 10 is beneficial to saving space in the chassis of the vehicle 1 so that the saved space can be used to set up more battery cells 30, which is beneficial to increasing the energy storage capacity of the battery 10.
  • the first side beam 41 and the second side beam 42 are connected to the first support beam 211 and the second support beam 212 respectively, and the first side beam 41 and the second side beam 42 together with the first support beam 211 and the second support beam 212 serve as the main load-bearing components of the battery 10.
  • the first side beam 41 and the second side beam 42 are arranged, and the first support beam 211 and the second support beam 212 are connected by a beam structure, which can improve the connection strength of the first support beam 211 and the second support beam 212, thereby improving the overall structural strength and load-bearing capacity of the chassis assembly 20 of the vehicle 1.
  • the first side beam 41 and the second side beam 42 can be steel structural beams or aluminum alloy structural beams.
  • the first side beam 41 and the second side beam 42 can have various suitable cross-sectional configurations to reduce their weight as much as possible while ensuring their structural strength.
  • the first side beam 41 and the second side beam 42 extend along the second direction Y.
  • the first side beam 41 and the second side beam 42 may extend along the second direction Y in a strip shape, a block shape or other suitable structural forms.
  • the guard plate assembly 50 is connected to the first support beam 211, the second support beam 212, the first side beam 41 and the second side beam 42, and is surrounded to form a receiving cavity.
  • the receiving cavity can be a closed type with good sealing performance to achieve sealing of the battery cell 30 in the receiving cavity.
  • the second side beam 42 can provide certain support for the guard plate assembly 50 .
  • the guard plate assembly 50 may be an integrally formed structure, and is respectively connected to the first support beam 211, the second support beam 212, the first side beam 41, and the second side beam 42.
  • the guard plate assembly 50 includes a plurality of sub-components, and the plurality of sub-components are enclosed together to form a receiving cavity.
  • the specific structure may be selected according to actual needs.
  • the first side beam 41 and the second side beam 42 are respectively connected to the first support beam 211 and the second support beam 212, and are spaced apart along the second direction Y, so that the first side beam 41 and the second side beam 42 can respectively extend along the second direction Y.
  • the first direction X and the second direction Y can intersect at an acute angle, a right angle, or an obtuse angle.
  • the first direction X and the second direction Y are perpendicular to each other.
  • the first side beam 41 and the second side beam 42 are respectively connected to the first support beam 211 and the second support beam 212.
  • the first side beam 41 and the second side beam 42 can provide certain support for the first support beam 211 and the second support beam 212, especially along the second direction Y, thereby improving the collision performance of the chassis along the second direction Y.
  • first side beam 41 and the second side beam 42 have a certain structural strength, during the process of the battery cell 30 expanding and deforming along the first direction X, the first side beam 41 and the second side beam 42 can utilize their own structural strength to bear the expansion force of the battery cell 30 to limit the expansion deformation of the battery cell 30 along the first direction X.
  • the chassis assembly 20 provided in the embodiment of the present application is provided with a first side beam 41 and a second side beam 42, which are arranged at intervals along the first direction X, and the first side beam 41 and the second side beam 42 are respectively connected to the first support beam 211 and the second support beam 212, so that the rigidity and strength of the chassis assembly 20 of the vehicle 1 are improved, thereby improving the bearing capacity of the chassis assembly 20, and the collision performance of the chassis assembly 20 along the second direction Y can also be improved.
  • the first side beam 41 and the second side beam 42 can be used to limit the expansion of the battery cell 30, thereby improving the reliability of the battery cell 30.
  • the first side beam 41 includes a first beam body 411 and a first reinforcing beam 412.
  • the first beam body 411 encloses a first accommodating cavity 41a.
  • the first reinforcing beam 412 is disposed in the first accommodating cavity 41a and connects both sides of the first beam body 411 along the first direction X.
  • the first side beam 41 includes a first beam body 411 and a first reinforcing beam 412 .
  • the first reinforcing beam 412 is used to reinforce the structure of the first side beam 41 , which can further improve the structural strength of the first side beam 41 and further improve the overall structural strength of the chassis assembly 20 .
  • the first reinforcing beam 412 connects two sides of the first beam body 411 along the first direction X, and the first reinforcing beam 412 can be arranged parallel to the first direction X, or the first reinforcing beam 412 is arranged in a direction inclined relative to the first direction X.
  • the first side beam 41 includes a first beam body 411 and a first reinforcing beam 412, which is beneficial to improving the structural strength and rigidity of the first side beam 41, thereby improving the overall structural strength and rigidity of the chassis assembly 20.
  • the first reinforcing beam 412 is provided to connect the two sides of the first beam body 411 along the first direction X, which is beneficial to improving the bearing capacity of the first side beam 41 along the first direction X.
  • the first side beam 41 can be used to withstand the expansion force of the battery cell 30 along the first direction X, thereby suppressing the expansion deformation of the battery cell 30 along the first direction X, and improving the reliability performance of the battery cell 30.
  • the first side beam 41 also includes a second reinforcing beam 413, which is located in the first accommodating cavity 41a and connects the first reinforcing beam 412 and the first beam body 411 on both sides along the third direction Z.
  • the first direction X, the second direction Y and the third direction Z intersect each other.
  • the second reinforcing beam 413 is arranged in the first accommodating cavity 41a and connects the two sides of the first beam body 411 along the third direction Z.
  • the second reinforcing beam 413 is arranged to help improve the bearing capacity of the first side beam 41 along the third direction Z.
  • the first direction X, the second direction Y, and the third direction Z intersect each other, and illustratively, the first direction X and the second direction Y are perpendicular to each other.
  • the second reinforcing beam 413 is connected to both sides of the first beam body 411 along the third direction Z.
  • the second reinforcing beam 413 can be parallel to the third direction Z, or inclined relative to the third direction Z, both of which can improve the bearing capacity of the first side beam 41 along the third direction Z.
  • the first side beam 41 also includes a second reinforcing beam 413, and the second reinforcing beam 413 is connected to both sides of the first beam body 411 along the third direction Z, which is beneficial to improving the structural strength and structural stiffness of the first side beam 41 along the third direction Z, and further improving the bearing capacity of the first side beam 41 along the third direction Z. This is beneficial to improving the structural strength and bearing capacity of the chassis assembly 20 along the third direction Z.
  • the first side beam 41 has a pipe chamber 41 b extending through the second direction Y.
  • the chassis assembly 20 further includes a heat exchange pipe 43 disposed in the pipe chamber 41 b.
  • the heat exchange pipe 43 is used for a fluid to flow through the fluid, and the fluid is used for heat exchange with the battery cell 30 .
  • the pipeline chamber 41b is located inside the first side beam 41 and is arranged to penetrate the first side beam 41 along the second direction Y, i.e., the extension direction of the first side beam 41.
  • the heat exchange pipeline 43 is arranged in the pipeline chamber 41b, and the space inside the first side beam 41 is utilized to arrange the heat exchange pipeline 43, thereby reducing the space outside the first side beam 41 occupied by the heat exchange pipeline 43, which is conducive to saving the extra space occupied by the heat exchange pipeline 43.
  • the heat exchange pipe 43 is used for a fluid to flow through, and cooling water or heating water may flow through the heat exchange pipe 43 to cool or heat the battery cells 30 .
  • the first side beam 41 is provided with a pipe chamber 41b, and the space inside the first side beam 41 can be used to arrange the heat exchange pipe 43, which is beneficial to the arrangement and layout of the internal space of the chassis assembly 20, and further beneficial to improving the structural compactness of the chassis structure.
  • the pipe chamber 41b can limit the heat exchange pipe 43, reducing the risk of the heat exchange pipe 43 falling off during the vibration of the chassis assembly 20.
  • the chassis assembly 20 further includes an adapter 44, at least a portion of which is located outside the pipe chamber 41 b and is connected to the heat exchange pipe 43, and the adapter 44 is used to connect the heat exchange pipe 43 with the pipe outside the pipe chamber 41 b.
  • the adapter 44 is connected to the heat exchange pipeline 43, and the adapter 44 can be used to connect the heat exchange pipeline 43 inside the pipeline chamber 41b with other pipelines outside the pipeline chamber 41b to achieve circulation of the fluid in the heat exchange pipeline 43.
  • the adapter 44 makes the connection more convenient and quick.
  • the first support beam 211 includes a support beam body 2111 and a connecting beam 2112, and the connecting beam 2112 is arranged on the side of the first support beam 211 along the second direction Y toward the second support beam 212; the end of the connecting beam 2112 along the first direction X has a first inclined surface 2112a inclined relative to the first direction X and the second direction Y, and the end of the first side beam 41 along the second direction Y has a second inclined surface 41c inclined relative to the first direction X and the second direction Y, and the first inclined surface 2112a and the second inclined surface 41c are connected to each other in a close fit.
  • the support beam body 2111 is used to connect with the structure of the vehicle body 1, and the connecting beam 2112 is used to connect with the first side
  • the beam 41 is connected to the second side beam 42 .
  • the first inclined surface 2112a and the second inclined surface 41c are both inclined relative to the first direction X and the second direction Y, and the first inclined surface 2112a and the second inclined surface 41c may be both arranged at 45° relative to the first direction X and the second direction Y.
  • first side beam 41 and the second support beam 212 may be simultaneously connected by the above-mentioned inclined surface, or the second side beam 42 may be connected by the first support beam 211 and the second support beam 212 respectively by the inclined surface.
  • the first side beam 41 is connected to the first inclined surface 2112a and the second inclined surface 41c. After the first side beam 41 and the connecting beam 2112 are connected, the first inclined surface 2112a and the second inclined surface 41c can withstand both the load along the first direction X and the load along the second direction Y.
  • first inclined surface 2112a and the second inclined surface 41c may be connected by welding, or may be connected by screws, pins, rivets, etc.
  • setting the first side beam 41 and the first support beam 211 to be connected through the first inclined surface 2112a and the second inclined surface 41c is beneficial for the connection between the first side beam 41 and the first support beam 211 to bear loads in both the first direction X and the second direction Y, which is beneficial for further improving the structural bearing capacity of the chassis assembly 20.
  • first inclined surface 2112a and the second inclined surface 41c are connected by welding.
  • the welding connection has a relatively high connection strength, which is beneficial to further improve the connection strength between the first side beam 41 and the first support beam 211 , thereby improving the structural strength of the chassis assembly 20 .
  • the second side beam 42 includes a second beam body 421 and a third reinforcing beam 422.
  • the second beam body 421 encloses a second accommodating cavity 42a.
  • the third reinforcing beam 422 is disposed in the second accommodating cavity 42a and connects both sides of the second beam body 421 along the first direction X.
  • the second side beam 42 includes a second beam body 421 and a third reinforcing beam 422 , which is beneficial to improving the structural strength and structural rigidity of the second side beam 42 , and further improving the bearing capacity of the second side beam 42 .
  • the third reinforcing beam 422 connects the two sides of the second beam body 421 along the first direction X, and the third reinforcing beam 422 can be extended along the first direction X, or the third reinforcing beam 422 is inclined relative to the first direction X. In this way, the third reinforcing beam 422 is connected to the two sides of the second beam body 421 along the first direction X, which is conducive to improving the bearing capacity of the second beam body 421 along the first direction X.
  • the second beam body 421 can withstand the expansion force of the battery cell 30 along the first direction X, reducing the risk of expansion and deformation of the battery cell 30.
  • the second side beam 42 includes a second beam body 421 and a third reinforcing beam 422, which is conducive to improving the structural strength and rigidity of the second side beam 42, thereby improving the bearing capacity of the second side beam 42.
  • the second side beam 42 can also be used to reduce the risk of expansion and deformation of the battery cell 30, which is conducive to improving the reliability of the battery cell 30.
  • the guard plate assembly 50 includes a first cover plate 51 and a second cover plate 52, and the first cover plate 51 and the second cover plate 52 are respectively covered on the first support beam 211, the second support beam 212, the first side beam 41 and the second side beam 42 along the third direction Z, and the first direction X, the second direction Y and the third direction Z intersect each other.
  • the battery cell 30 can be assembled after one of the first cover plate 51 and the second cover plate 52 is installed, and then the other of the first cover plate 51 and the second cover plate 52 can be covered to form a closed accommodating cavity, which is beneficial to improving the convenience of assembling the battery 10 on the chassis assembly 20.
  • the vehicle 1 provided according to the embodiment of the present application includes the chassis assembly 20 provided in the embodiment of the present application.
  • the vehicle 1 provided in the embodiment of the present application has the same technical effect as the chassis assembly 20 provided in the embodiment of the present application, and thus will not be described in detail here.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne un véhicule et son ensemble châssis (20). L'ensemble châssis comprend un cadre (21), un premier élément latéral (41), un second élément latéral (42), un ensemble de protection (50) et un élément de batterie (30), le cadre comprenant une première poutre de support (211) et une seconde poutre de support (212), qui s'étendent séparément dans une première direction (X) et sont espacées l'une de l'autre dans une seconde direction (Y), la première direction croisant la seconde direction ; le premier élément latéral et le second élément latéral sont espacés l'un de l'autre dans la première direction et sont respectivement connectés au premier faisceau de support et au second faisceau de support ; l'ensemble de protection est relié à la première poutre de support, à la seconde poutre de support, au premier élément latéral et au second élément latéral, et forment une cavité de réception au moyen d'une enceinte avec la première poutre de support, la seconde poutre de support, le premier élément latéral et le second élément latéral ; et l'élément de batterie est logé dans la cavité de réception. La structure de l'ensemble châssis peut améliorer la capacité de support et améliorer les performances de collision dans la seconde direction ; et l'expansion de l'élément de batterie est limitée à l'aide du premier élément latéral et du second élément latéral, ce qui permet d'améliorer la fiabilité de l'élément de batterie.
PCT/CN2023/090253 2023-04-24 2023-04-24 Véhicule et son ensemble châssis Pending WO2024221155A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2023/090253 WO2024221155A1 (fr) 2023-04-24 2023-04-24 Véhicule et son ensemble châssis
CN202380064202.XA CN119855757A (zh) 2023-04-24 2023-04-24 车辆及其底盘组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/090253 WO2024221155A1 (fr) 2023-04-24 2023-04-24 Véhicule et son ensemble châssis

Publications (1)

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WO2024221155A1 true WO2024221155A1 (fr) 2024-10-31

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WO (1) WO2024221155A1 (fr)

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CN120156593A (zh) * 2025-04-18 2025-06-17 深蓝汽车科技有限公司 一种车辆部件、车身结构和车辆

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CN110544755A (zh) * 2019-08-15 2019-12-06 江苏大学 一种钢铝混合电池包的下壳体
CN111108015A (zh) * 2017-09-13 2020-05-05 形状集团 具有管状外围壁的车辆电池托盘
CN114759307A (zh) * 2022-03-11 2022-07-15 上海汽车集团股份有限公司 一种电池包及其箱体组件
CN115088120A (zh) * 2020-08-14 2022-09-20 株式会社Lg新能源 电池组和包括电池组的机动车辆

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CN107293662A (zh) * 2016-04-11 2017-10-24 比亚迪股份有限公司 一种用于安装动力电池的车用托盘组件及汽车
US20180050607A1 (en) * 2016-08-17 2018-02-22 Shape Corp. Battery support and protection structure for a vehicle
CN111108015A (zh) * 2017-09-13 2020-05-05 形状集团 具有管状外围壁的车辆电池托盘
CN208028111U (zh) * 2018-03-01 2018-10-30 嘉兴泽通新能源科技有限公司 一种底盘集成式动力电池箱
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CN115088120A (zh) * 2020-08-14 2022-09-20 株式会社Lg新能源 电池组和包括电池组的机动车辆
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CN120156593A (zh) * 2025-04-18 2025-06-17 深蓝汽车科技有限公司 一种车辆部件、车身结构和车辆

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