WO2025201544A1 - 车身结构及车辆 - Google Patents

车身结构及车辆

Info

Publication number
WO2025201544A1
WO2025201544A1 PCT/CN2025/085947 CN2025085947W WO2025201544A1 WO 2025201544 A1 WO2025201544 A1 WO 2025201544A1 CN 2025085947 W CN2025085947 W CN 2025085947W WO 2025201544 A1 WO2025201544 A1 WO 2025201544A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle body
longitudinal beam
mounting member
body structure
vehicle
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/CN2025/085947
Other languages
English (en)
French (fr)
Inventor
田洪生
闫军飞
全毅
刘腾涌
张行
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.)
BYD Co Ltd
Original Assignee
BYD Co 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 BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025201544A1 publication Critical patent/WO2025201544A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04—Door pillars ; windshield pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
    • 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

Definitions

  • the present application relates to the field of vehicles, and more specifically, to a vehicle body structure and a vehicle.
  • One purpose of the present application is to provide a technical solution for a vehicle body structure and a vehicle.
  • a vehicle body structure comprising:
  • a mounting member connected to the base plate and used for mounting a battery pack
  • the bottom plate is located on a lower side of the mounting member in a vehicle height direction.
  • the floor comprises a cowl.
  • the vehicle body structure further includes a vehicle body floor, and the mounting member is connected to the vehicle body floor;
  • the mounting member is provided between the vehicle body floor and the dash panel in a vehicle height direction.
  • the vehicle body structure includes an A-pillar, and the mounting member is connected to the A-pillar.
  • the vehicle body structure further includes a vehicle body central channel, and the mounting component is connected to the vehicle body central channel.
  • the vehicle body structure includes two mounting members, which are spaced apart in the width direction of the vehicle, and one end of each mounting member is connected to the A-pillar and the other end is connected to the central channel of the vehicle body.
  • the vehicle body structure further includes a longitudinal beam root support plate, wherein the longitudinal beam root support plate is connected to the mounting member.
  • the longitudinal beam root support plate is disposed between the front panel and the vehicle body floor.
  • At least a portion of the longitudinal beam root support plate is disposed on an upper side of the mounting member.
  • the longitudinal beam root support plate is connected to the bottom plate to form a receiving cavity, and the mounting member is at least partially disposed in the receiving cavity and connected to the longitudinal beam root support plate.
  • a cross-sectional area of an end of the longitudinal beam root support plate close to the mounting member is larger than a cross-sectional area of an end of the longitudinal beam root support plate far from the mounting member.
  • the longitudinal beam root support plate is connected to the A-pillar.
  • the vehicle body structure further includes a front longitudinal beam connected to the mounting member;
  • the front longitudinal member is provided on the front side of the mounting member in the front-rear direction of the vehicle.
  • the front longitudinal beam is connected to the longitudinal beam root support plate, and the front longitudinal beam is connected to the mounting member through the longitudinal beam root support plate.
  • the vehicle body structure further includes a rocker assembly, the front longitudinal beam is connected to the front panel via a front longitudinal beam rear joint, and the front longitudinal beam rear joint is respectively connected to the rocker assembly and the A-pillar.
  • the rocker assembly includes a rocker beam having a first layer structure and a second layer structure stacked in a vehicle body height direction, and a width of the first layer structure is greater than a width of the second layer structure in a vehicle body width direction.
  • the vehicle includes the above-mentioned vehicle body structure, and the battery pack is installed in the vehicle body structure.
  • FIG1 is a schematic structural diagram of a battery pack and a front panel in some embodiments.
  • FIG2 is a schematic structural diagram of the connection between the battery pack and the front panel in some embodiments.
  • FIG5 is a cross-sectional view of the connection structure of the front panel, the door sill assembly, and the longitudinal beam root support plate in some embodiments.
  • FIG6 is an exploded schematic diagram of the mounting member and the longitudinal beam root support plate in some embodiments.
  • FIG7 is a schematic structural diagram of the connection between the rear longitudinal beam and the rear panel, the rear longitudinal beam outer support beam, and the rear longitudinal beam inner support beam in some embodiments.
  • FIG8 is a cross-sectional view of the structure of the connection between the battery pack and the rear panel in some embodiments.
  • FIG9 is a cross-sectional view of the connection structure between the battery pack and the door sill beam in some embodiments.
  • FIG. 10 is a cross-sectional view of a vehicle in some embodiments.
  • FIG11 is a schematic structural diagram of a vehicle in some embodiments.
  • vehicle body 10 front longitudinal beam 11; rear joint of front longitudinal beam 12; longitudinal beam root reinforcement block 13; front panel 14; bottom surface 141; first mounting point 141A; fourth mounting point 141B; vehicle body floor 15; vehicle body center channel 16; mounting member 17; longitudinal beam root support plate 18; first connection point 18a; second connection point 18b; third connection point 18c; fourth connection point 18d; battery pack 20; second mounting point 20A; front Crossbeam 20B; frame longitudinal beam 20C; A-pillar 30; side inner panel 31; side outer panel 32; front subframe 40; third mounting point 40A; door sill assembly 50; door sill beam 51; first layer structure 511; second layer structure 512; accommodating space 513; U-shaped structure 514; rear subframe 60; rear panel 70; rear longitudinal beam 71; rear longitudinal beam front joint 72; rear longitudinal beam outer support beam 73; rear longitudinal beam inner support beam 74; rear panel lower crossbeam 75.
  • first and second in the specification and claims of this application may explicitly or implicitly refer to one or more of the features.
  • plural means two or more.
  • and/or in the specification and claims refers to at least one of the connected entities, and the character “/” generally indicates an “or” relationship between the connected entities.
  • this embodiment provides a vehicle body structure, including a base plate and a mounting member 17.
  • the mounting member 17 is connected to the base plate and is used to mount a battery pack 20. In the vehicle height direction, the base plate is located below the mounting member 17.
  • the vehicle body structure includes a floor and mounting member 17, which is connected to the floor.
  • Mounting member 17 is located above the floor in the vehicle's height direction and is used to mount the battery pack 20.
  • mounting the battery pack 20 on mounting member 17 facilitates installation of the battery pack 17 and improves the stability of the battery pack's connection.
  • the base plate includes a dash panel 14.
  • the dash panel 14 has a bottom surface 141 extending along the length of the vehicle body.
  • the mounting member 17 is located on the bottom surface 141.
  • the battery pack 20 is mounted on the mounting member 17.
  • the battery pack 20 is connected to the bottom surface 141 of the dash panel 14, thereby improving the installation stability of the battery pack 20.
  • the vehicle body structure further includes a vehicle body floor 15 , and the mounting member 17 is connected to the vehicle body floor 15 ; in the vehicle body height direction, the mounting member 17 is disposed between the vehicle body floor 15 and the front panel 14 .
  • the dash panel 14 has a bottom surface 141 extending along the length of the vehicle body. This bottom surface 141 extends to the vehicle floor 15, and the battery pack 20 is located on this bottom surface 141.
  • a first mounting point 141A is provided on the bottom surface 141 for connection to the battery pack 20.
  • a second mounting point 20A is provided on the end of the battery pack 20 proximal to the dash panel 14.
  • the battery pack 20 is connected to the bottom surface 141 of the dash panel 14 via the first and second mounting points 141A and 20A.
  • the vehicle body structure further includes a front subframe 40 , wherein the front subframe 40 is connected to the bottom surface 141 of the front panel 14 .
  • the third mounting point 40A of the front subframe 40 is located at an end of the front subframe 40 close to the rear of the vehicle, so as to facilitate connection between the front subframe 40 and the dash panel 14 .
  • the front subframe 40 is made of aluminum alloy and the body material is carbon fiber. Since the two dissimilar materials cannot be welded, the front subframe 40 is connected to the bottom surface 141 of the front panel 14 by bolts to ensure connection strength and stability.
  • the spacing between the front subframe 40 and the battery pack 20 is set to 15mm-20mm based on the space available for the vehicle body 10. This prevents the front of the vehicle from transmitting collision forces to the front subframe 40. If the spacing between the front subframe 40 and the battery pack 20 is too small, the front subframe 40 could directly impact the battery pack 20 due to the collision force, causing damage. External impacts on the battery pack 20 can easily lead to electrical safety issues. Therefore, a spacing of 15mm-20mm is maintained between the front subframe 40 and the battery pack 20. This maximizes the front space available for the battery pack 20 while minimizing any impact on the battery pack 20, further improving the vehicle's range and electrical safety.
  • a first mounting point 141A is provided on the bottom surface 141, and a second mounting point 20A is provided on the battery pack 20.
  • the first mounting point 141A and the second mounting point 20A form the connection point between the battery pack 20 and the bottom surface 141.
  • a fourth mounting point 141B is also provided on the bottom surface 141, and a third mounting point 40A is provided on the front subframe 40.
  • the third mounting point 40A and the fourth mounting point 141B form the connection point between the bottom surface 141 and the front subframe 40.
  • the connection point between the battery pack 20 and the bottom surface 141 and the connection point between the front subframe 40 and the bottom surface 141 are located at the same height in the vehicle body height direction. In other words, they are located in the same plane in the vehicle body height direction. This structure not only facilitates the assembly of the battery pack 20 and the bottom surface 141, and the assembly of the bottom surface 141 and the front subframe 40, but also forms an effective force transmission structure.
  • the vehicle body structure includes an A-pillar 30 , and the mounting member 17 is connected to the A-pillar 30 .
  • one end of the mounting member 17 is connected to the central channel 16 of the vehicle body, and the other end is connected to the A-pillar 30 .
  • the connector of the battery pack 20 passes through the bottom surface 141 and is connected to the mounting member 17 .
  • the vehicle body structure includes two mounting members 17 , which are spaced apart in the width direction of the vehicle. One end of each mounting member 17 is connected to the A-pillar 30 , and the other end is connected to the vehicle body central channel 16 .
  • the bottom of one end of the mounting member 17 is connected to the bottom surface 141 of the front panel 14 , the top of one end of the mounting member 17 is connected to the vehicle body floor 15 , and the vehicle body floor 15 is connected to the vehicle body central channel 16 .
  • mounting member 17 includes a bottom and a top.
  • the bottom of one end of mounting member 17 is connected to the bottom surface 141 of dash panel 14, while the top of one end of mounting member 17 is connected to vehicle body floor 15. Therefore, mounting member 17 is positioned between bottom surface 141 of dash panel 14 and vehicle body floor 15. This improves the mounting strength of mounting member 17, and when the connector of battery pack 20 connects to mounting member 17 through second mounting point 20A, the connection strength of battery pack 20 is also enhanced.
  • the mounting member 17 is an inclined trapezoidal closed-section beam.
  • the bottom of one end of the mounting member 17 is bonded to the bottom surface 141 of the front panel 14.
  • a first mounting point 141A is set on the mounting member 17.
  • the top of one end of the mounting member 17 is bonded to the vehicle body floor 15, and the vehicle body floor 15 is overlapped with the flange of the vehicle body central channel 16.
  • the top and bottom of the mounting member 17 are jointly stabilized by the vehicle body central channel 16 and the vehicle body floor 15, thereby realizing the connection and force transmission function of the structural skeleton.
  • the vehicle body structure further includes a longitudinal beam root support plate 18 , and the longitudinal beam root support plate 18 is connected to the mounting member 17 .
  • the vehicle body structure further includes a longitudinal beam root support plate 18 , wherein the longitudinal beam root support plate 18 is connected to the mounting member 17 , thereby enabling force transmission in the front-rear direction of the vehicle.
  • the longitudinal beam root support plate 18 is disposed between the dash panel 14 and the vehicle body floor 17 in the vehicle height direction.
  • the longitudinal beam root support plate 18 is provided between the dash panel 14 and the vehicle body floor 17 , thereby enabling force transmission in the vehicle height direction.
  • At least a portion of the longitudinal beam root support plate 18 is disposed on an upper side of the mounting member 17 in the vehicle height direction.
  • the longitudinal beam root support plate 18 can be partially or entirely disposed above the mounting member 17. This allows for force transmission in the vehicle height direction and improves the connection stability between the longitudinal beam root support plate 18 and the mounting member 17.
  • the longitudinal beam root support plate 18 is connected to the bottom plate to form a receiving cavity, and the mounting member 17 is at least partially disposed in the receiving cavity and connected to the longitudinal beam root support plate 18 .
  • the longitudinal beam root support plate 18 is connected to the bottom plate to form a receiving cavity.
  • the longitudinal beam root support plate 18 is connected to the front panel 14 to form a receiving cavity.
  • the mounting member 17 is connected to the front panel 14, and the mounting member 17 is partially located inside the receiving cavity and connected to the longitudinal beam root support plate 18. This improves the installation stability of the mounting member 17, and further improves the installation strength of the battery pack 30; it also enables force transmission between the mounting member 17 and the longitudinal beam root support plate 18.
  • the cross-sectional area of the end of the longitudinal beam root support plate 18 close to the mounting member 17 is larger than the cross-sectional area of the end away from the mounting member 17 .
  • the cross-sectional area of the longitudinal beam root support plate 18 at the end closest to the mounting member 17 is larger than the cross-sectional area at the end further away from the mounting member 17.
  • the cross-sectional area at the end further away from the mounting member 17 is larger, thus increasing the area over which the force is transmitted and making the force more dispersed.
  • the cross-sectional area mentioned above refers to the area of the cross section taken in the height direction of the vehicle.
  • the longitudinal beam root support plate 18 is connected to the A-pillar 30 .
  • the end of the longitudinal beam root support plate 18 away from the mounting member 17 is connected to the A-pillar 30 .
  • this can improve the connection strength of the A-pillar 30 .
  • it can transmit force to the A-pillar 30 in the width direction of the vehicle, further dispersing the force, thereby improving the structural strength of the vehicle body structure.
  • the longitudinal beam root support plate 18 is located on the rear side of the front panel 14 , the front of the longitudinal beam root support plate 18 is connected to the front panel 14 , and the rear of the longitudinal beam root support plate 18 is connected to the mounting member 17 .
  • the other end of the mounting member 17 can transmit the force of the second mounting point 20A to the lower end of the A-pillar 30 through the longitudinal beam root support plate 18, and one end of the mounting member 17 can transmit the force to the vehicle body center channel 16, thereby achieving force dispersion.
  • mounting member 17 is a closed-section, trapezoidal beam.
  • the top surface of the other end of mounting member 17 is connected to the longitudinal beam root support plate 18, which is respectively connected to the vehicle body floor 15, the bottom surface 141 of the dash panel 14, the side panel inner panel 31, and the longitudinal beam root reinforcement block 13.
  • the bottom of mounting member 17 is connected to the bottom surface 141 of the dash panel 14, and the top of mounting member 17 is connected to the vehicle body floor 15.
  • Mounting member 17 strengthens the structural strength and rigidity of the first mounting point 141A on the bottom surface 141 of the dash panel 14, stabilizes the front end of the vehicle body 10, enhances the torsional strength of the vehicle body floor 15, and thus strengthens the torsional rigidity of the vehicle, thereby improving the vehicle's handling performance.
  • the vehicle body structure further includes a front longitudinal beam 11 , which is connected to the mounting member 17 ; in the front-to-rear direction of the vehicle, the front longitudinal beam 11 is disposed in front of the mounting member 17 .
  • the vehicle body structure further includes a front longitudinal beam 11 , which is connected to a mounting member 17 ; the front longitudinal beam 11 is located in front of the mounting member 17 in the vehicle front-rear direction, thereby enabling force transmission in the vehicle front-rear direction.
  • the front longitudinal beam 11 is connected to the longitudinal beam root support plate 18 , and the front longitudinal beam 11 is connected to the mounting member 17 through the longitudinal beam root support plate 18 .
  • the front longitudinal beam 11 is connected to the longitudinal beam root support plate 18, and the front longitudinal beam 11 is connected to the mounting member 17 through the longitudinal beam root support plate 18.
  • a force transmission path can be achieved between the front longitudinal beam 11, the longitudinal beam root support plate 18 and the mounting member 17.
  • the front longitudinal beam 11 and the rear longitudinal beam joint 12 are both made of aluminum alloy, while the dash panel 14 is made of carbon fiber. Because carbon fiber does not undergo plastic deformation under high loads but instead directly shatters, if the front longitudinal beam 11 and the dash panel 14 were directly connected, the front longitudinal beam 11 would transmit the collision force to the dash panel 14 after being subjected to a collision, which would put the dash panel 14 at risk of shattering. Therefore, the front longitudinal beam 11 and the dash panel 14 are connected via the rear longitudinal beam joint 12.
  • the rear longitudinal beam joint 12 extends the dash panel 14 downward to the vehicle body floor 15, connecting it to the rocker assembly 50 and the A-pillar 30, thereby forming a front frame structure.
  • a rear longitudinal beam 71 is further included, wherein the rear longitudinal beam 71 is connected to a rear longitudinal beam front joint 72, and the rear longitudinal beam front joint 72 is respectively connected to a rear longitudinal beam inner support beam 74 and a rear longitudinal beam outer support beam 73, and the axes of the rear longitudinal beam inner support beam 74, the rear longitudinal beam outer support beam 73 and the rear longitudinal beam 71 intersect in pairs.
  • the rear longitudinal beam 71 is connected to the rear longitudinal beam inner support beam 74 and the rear longitudinal beam outer support beam 73 via the rear longitudinal beam front joint 72.
  • the rear longitudinal beam 71, the rear longitudinal beam inner support beam 74, and the rear longitudinal beam outer support beam 73 all form a Y-shaped structure.
  • the collision force can be dispersed to the rear longitudinal beam inner support beam 74 and the rear longitudinal beam outer support beam 73 via the rear longitudinal beam front joint 72.
  • the rear longitudinal beam outer support beam 73, the rear longitudinal beam inner support beam 74, and the door sill assembly 50 are all made of aluminum alloy, and the rear panel 70 and the rear panel lower cross beam 75 are both made of carbon fiber.
  • the rear longitudinal beam outer support beam 73 is connected to the door sill assembly 50 via bolts to enhance their connection strength, and the rear longitudinal beam inner support beam 74 is connected to the rear panel 70 via bolts to enhance their connection strength.
  • the rear panel 70 and the rear panel lower cross beam 75 form a U-shaped cavity, and the cavity is filled with reinforced plastic.
  • the rear panel 70, the rear panel lower cross beam 75 and the reinforced plastic are integrally formed by thermal curing.
  • a rear subframe 60 is further included, wherein the rear subframe 60 is connected to the rear longitudinal beam outer support beam 73 , and the rear panel 70 is used to be connected to the battery pack 20 .
  • the vehicle body structure further includes a rear subframe 60, which is connected to a rear longitudinal beam outer support beam 73.
  • the rear subframe 60 is located below the rear longitudinal beam outer support beam 73.
  • the side of the battery pack 20 near the rear of the vehicle is connected to the rear panel 70. Therefore, the side of the battery pack 20 near the front of the vehicle is connected to the front panel 14, and the side of the battery pack 20 near the parking space is connected to the rear panel 70.
  • the front panel 14 and the rear panel 70 provide installation space for the battery pack 20.
  • L2 there is a distance L2 between the rear subframe 60 and the battery pack 20 in the length direction of the vehicle body, where L2 ranges from 30 mm to 40 mm.
  • the spacing between the rear subframe 60 and the battery pack 20 is set to only 30mm-40mm based on the space available for the vehicle body 10. This prevents the rear end of the vehicle from transmitting collision forces to the rear subframe 60. If the spacing between the rear subframe 60 and the battery pack 20 is too small, the rear subframe 60 could directly impact the battery pack 20 due to the collision force, causing damage. If the battery pack 20 is subjected to external forces, electrical safety issues could easily arise. The resulting spacing of 30mm-40mm between the rear subframe 60 and the battery pack 20 maximizes rear space for the battery pack 20 while minimizing impacts on the battery pack 20, further improving the vehicle's range and electrical safety.
  • the battery pack 20 is connected to the rocker assembly 50 in the width direction of the vehicle body.
  • the bottom surface 141 of the dash panel 14 extends downward to the vehicle body floor 15 and connects to the left and right side sill assemblies 50, forming a front frame structure.
  • the battery pack 20 is connected to the side sill assemblies 50 in the vehicle body width direction, thereby improving the connection strength of the battery pack 20.
  • the rocker assembly 50 includes a rocker beam 51 .
  • the rocker beam 51 has a stacked first layer structure 511 and a second layer structure 512 .
  • the width of the first layer structure 511 is greater than the width of the second layer structure 512 .
  • the first layer structure 511 and the second layer structure 512 form a receiving space 513 , and the receiving space 513 is used to receive at least a portion of the battery pack 20 .
  • the rocker assembly 50 includes a rocker beam 51.
  • the rocker beam 51 includes a first structure 511 and a second structure 512.
  • the first structure 511 is wider than the second structure 512, thereby forming a storage space 513 between the first and second structures 511, 512.
  • the battery pack 20 is at least partially embedded in the storage space 513. Therefore, the battery pack 20 below the vehicle body floor 15 extends to the left and right sides of the rocker assembly 50, maximizing the use of the space on both sides. This increases the volume of the battery pack 20 in the vehicle body width direction and the vehicle's range.
  • the first layer structure 511 includes multiple U-shaped structures 514
  • the second layer structure 512 includes at least one U-shaped structure 514
  • the number of U-shaped structures 514 in the first layer structure 511 is greater than the number of U-shaped structures 514 in the second layer structure 512 .
  • the first layer structure 511 includes multiple U-shaped structures 514
  • the second layer structure 512 includes at least one U-shaped structure 514. Therefore, the number of U-shaped structures 514 in the first layer structure 511 is greater than the number of U-shaped structures 514 in the second layer structure 512, so an accommodating space 513 can be formed between the first layer structure 511 and the second layer structure 512.
  • the battery pack 20 has a frame longitudinal beam 20C, and the frame longitudinal beam 20C and the door sill beam 51 are both made of aluminum alloy.
  • the frame longitudinal beam 20C and the door sill beam 51 are connected by bolts to improve the structural strength of the frame longitudinal beam 20C and the door sill beam 51.
  • the front panel 14 can be made of carbon fiber material, and the body floor 15 can be made of carbon fiber material. Since the outer shell of the battery pack 20 is made of aluminum alloy material, the aluminum alloy material and the carbon fiber material are connected as dissimilar materials. The battery pack 20 and the bottom surface 141 of the front panel 14 are connected with bolts to ensure the connection strength and stability.
  • At least one of the front panel 14 and the body floor 15 is made of carbon fiber
  • the mounting member 17 is made of metal to ensure the connection strength between the battery pack 20 made of aluminum alloy and the front panel 14 or the body floor 15 made of carbon fiber, and to ensure the structural strength of the mounting member 17.
  • This embodiment further provides a vehicle, as shown in FIG. 10 and FIG. 11 , the vehicle includes a battery pack 20 and the vehicle body structure as described above, and the battery pack 20 is disposed on the vehicle body structure.
  • the battery pack 20 can improve the mechanical properties of the entire vehicle, such as torsional rigidity and bending rigidity.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.
  • references herein to "one embodiment,” “an embodiment,” or “one or more embodiments” mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Furthermore, please note that instances of the phrase “in one embodiment” do not necessarily all refer to the same embodiment.
  • any reference signs placed between brackets shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in the claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the present application may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware.
  • the use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种车身结构及车辆，车身结构包括：底板；安装件（17），安装件与底板连接，安装件用于安装电池包（20）；在车辆高度方向上，底板位于安装件的下侧，能够提高电池包的连接稳定性及牢固性。

Description

车身结构及车辆
相关申请的交叉引用
本申请要求在2024年03月29日提交中国专利局、申请号为2024103921327、名称为“车身结构及车辆”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于车辆领域，更具体地，涉及一种车身结构及车辆。
背景技术
相关技术中，对于电动车型来说，车辆的电池包、电机及电控是必不可少的结构。但是，如何使得电池包连接稳固是本领域技术人员待解决的问题。
发明内容
本申请的一个目的是提供一种车身结构及车辆的技术方案。
为实现上述目的，根据本申请的第一方面，提供了一种车身结构，其中，包括：
底板；
安装件，所述安装件与所述底板连接，所述安装件用于安装电池包；
在车辆高度方向上，所述底板位于所述安装件的下侧。
在一些实施例中，所述底板包括前围板。
在一些实施例中，所述车身结构还包括车身地板，所述安装件与所述车身地板连接；
在车辆高度方向上，所述安装件设置在所述车身地板与所述前围板之间。
在一些实施例中，所述车身结构包括A柱，所述安装件与所述A柱连接。
在一些实施例中，所述车身结构还包括车身中央通道，所述安装件与所述车身中央通道连接。
在一些实施例中，所述车身结构包括两个所述安装件，两个所述安装件在车辆的宽度方向间隔设置，每个所述安装件的一端与所述A柱连接，另一端与所述车身中央通道连接。
在一些实施例中，所述车身结构还包括纵梁根部撑板，所述纵梁根部撑板与所述安装件连接。
在一些实施例中，在车辆高度方向上，所述纵梁根部撑板设置在所述前围板与所述车身地板之间。
在一些实施例中，在车辆高度方向上，至少部分所述纵梁根部撑板设置在所述安装件的上侧。
在一些实施例中，所述纵梁根部撑板与所述底板连接并形成容纳腔，所述安装件至少部分设于所述容纳腔并与所述纵梁根部撑板连接。
在一些实施例中，在车辆的宽度方向上，所述纵梁根部撑板靠近所述安装件的一端的横截面积大于远离所述安装件的一端的横截面积。
在一些实施例中，所述纵梁根部撑板与所述A柱连接。
在一些实施例中，在车辆长度方向上，所述纵梁根部撑板位于所述前围板的后侧，所述纵梁根部撑板的前部与所述前围板连接，所述纵梁根部撑板的后部与所述安装件连接。
在一些实施例中，所述车身结构还包括前纵梁，所述前纵梁与所述安装件连接；
在车辆前后方向上，所述前纵梁设置在所述安装件前侧。
在一些实施例中，所述前纵梁与所述纵梁根部撑板连接，所述前纵梁通过所述纵梁根部撑板与所述安装件连接。
在一些实施例中，所述车身结构还包括门槛总成，所述前纵梁与所述前围板通过前纵梁后接头连接，所述前纵梁后接头分别与所述门槛总成和所述A柱连接。
在一些实施例中，所述门槛总成包括门槛梁，在车身高度方向上，所述门槛梁具有层叠的第一层结构和第二层结构，在车身宽度方向上，所述第一层结构的宽度大于所述第二层结构的宽度。
在一些实施例中，所述第一层结构与所述第二层结构形成有容纳空间，所述容纳空间用于容纳至少部分电池包。
在一些实施例中，所述前围板与所述车身地板至少有一个为碳纤维材质；或者，所述安装件为金属材质；或者，所述前围板与所述车身地板至少有一个为碳纤维材质且所述安装件为金属材质。
根据本申请的第二方面，提供了一种车辆，包括：
电池包；
所述车辆包括上述的车身结构，所述电池包设于所述车身结构。
本申请的技术方案，安装件用于安装电池包，既便于安装电池包，又能够提高电池包的连接稳定性。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一些实施例中的电池包与前围板的结构示意图。
图2是一些实施例中的电池包与前围板的连接的结构示意图。
图3是一些实施例中的电池包与前围板的剖视图。
图4是一些实施例中的前围板、门槛总成、纵梁根部撑板的连接结构示意图。
图5是一些实施例中的前围板、门槛总成、纵梁根部撑板的连接结构的剖视图。
图6是一些实施例中的安装件与纵梁根部撑板的分解示意图。
图7是一些实施例中的后纵梁与后围板、后纵梁外撑梁、后纵梁内撑梁的连接的结构示意图。
图8是一些实施例中的电池包与后围板的连接的结构剖视图。
图9是一些实施例中的电池包与门槛梁的连接结构剖视图。
图10是一些实施例中的车辆的剖视图。
图11是一些实施例中的车辆的结构示意图。
附图标记说明：车身10；前纵梁11；前纵梁后接头12；纵梁根部加强块13；前围板14；底面141；第一安装点141A；第四安装点141B；车身地板15；车身中央通道16；安装件17；纵梁根部撑板18；第一连接处18a；第二连接处18b；第三连接处18c；第四连接处18d；电池包20；第二安装点20A；前横梁20B；边框纵梁20C；A柱30；侧围内板31；侧围外板32；前副车架40；第三安装点40A；门槛总成50；门槛梁51；第一层结构511；第二层结构512；容纳空间513；口字型结构514；后副车架60；后围板70；后纵梁71；后纵梁前接头72；后纵梁外撑梁73；后纵梁内撑梁74；后围板下横梁75。
具体实施例
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
如图1－图11所示，本实施例提供了一种车身结构，包括底板和安装件17，所述安装件17与所述底板连接，所述安装件17用于安装电池包20；在车辆高度方向上，所述底板位于所述安装件17的下侧。
如图1所示，车身结构包括底板和安装件17，安装件17与底板连接。在车辆高度方向上，安装件17位于底板的上侧，安装件17用于安装电池包20，也就是说，电池包20安装在安装件17上，一方面便于安装电池包17，另一方便能够提高电池包17的连接稳定性。
在一些实施例中，所述底板包括前围板14。前围板14具有沿着车身长度方向延伸的底面141，安装件17位于底面141上，电池包20安装在安装件17上，电池包20也就与前围板14的所述底面141连接，从而能够提高电池包20的安装稳定性。
在一些实施例中，所述车身结构还包括车身地板15，所述安装件17与所述车身地板15连接；在车身高度方向上，所述安装件17设置在所述车身地板15与所述前围板14之间。
如图1所示，前围板14具有沿车身长度方向延伸的底面141，底面141延伸至车身地板15处，电池包20位于底面141上。底面141设置有与电池包20连接的第一安装点141A，电池包20靠近前围板14的一端设有第二安装点20A，电池包20与前围板14的底面141通过第一安装点141A和第二安装点20A连接。由于电池包20本身就具有很好的刚度，电池包20设置在车身地板15与前围板14的底面141之间，将电池包20加入整车的传力结构中，从而能够通过电池包20提高整车的扭转刚度、弯曲刚度等力学性能。
电池包20的第二安装点20A设置于在电池包20的前横梁20B上，位于电池包20靠近车头的一侧，便于电池包20与前围板14的底面141连接。
在一些实施例中，车身结构还包括前副车架40，所述前副车架40与所述前围板14的所述底面141连接。
在一些实施例中，如图1和图2所示，车身结构还包括前副车架40，前副车架40与前围板14的底面141连接。前副车架40上有两个第三安装点40A，底面141上还设有两个第四安装点141B，两个第四安装点141B沿车声的宽度方向间隔且对称设置，前副车架40与前围板14的底面141通过第三安装点40A和第四安装点141B连接。
在一些实施例中，前副车架40的第三安装点40A位于前副车架40的靠近车尾的一端，便于前副车架40与前围板14连接。
在一些实施例中，前副车架40采用铝合金材质，车身材料为碳纤维，由于两种异种材料无法进行焊接，前副车架40与前围板14的底面141采用螺栓连接，以保证连接强度和连接稳定性。
在一些实施例中，所述前副车架40与电池包20在车身长度方向存在间距L1，15mm≤L1≤20mm。
在一些实施例中，如图2所示，前副车架40与电池包20在车身长度方向存在间距L1，其中，L1的范围为15mm－20mm之间。
前副车架40与电池包20之间的间距根据车身10布置空间大小将其设置为15mm－20mm，从而避免车头在受到碰撞力之后将碰撞力传至前副车架40上，若前副车架40与电池包20间距过小，前副车架40会因为碰撞力直接撞击电池包20，从而对电池包20造成损坏。若电池包20受外力撞击很容易出现用电安全的问题。所以使得前副车架40与电池包20之间留有15mm－20mm的间距，在最大限度的利用了前部空间布置电池包20的同时，还能够降低对电池包20的影响，进一步提升整车续航里程及用电安全。
在一些实施例中，电池包20与所述底面141的连接点、所述前副车架40与所述底面141的连接点，在车身高度方向上处于相同高度。
在一些实施例中，如图2所示，底面141上设有第一安装点141A，电池包20上设有第二安装点20A，第一安装点141A与第二安装点20A形成电池包20与底面141的连接点。底面141上还设有第四安装点141B，前副车架40上设有第三安装点40A，第三安装点40A与第四安装点141B形成底面141与前副车架40的连接点、其中，电池包20与底面141的连接点、前副车架40与底面141的连接点，在车身高度方向上位于相同的高度，换言之，就是在车身高度方向位于同一平面，这种结构不仅便于将电池包20与底面141、底面141与前副车架40装配，而且能够形成有效的传力结构。
在一些实施例中，所述车身结构包括A柱30，所述安装件17与所述A柱30连接。
在一些实施例中，所述车身结构还包括车身中央通道16，所述安装件17与所述车身中央通道16连接。
在一些实施例中，安装件17一端与车身中央通道16连接，另一端与A柱30连接，电池包20的连接件穿过底面141并与安装件17连接。
在一些实施例中，安装件17的一端与车身中央通道16连接，安装件17的另一端A柱30连接。并且安装件17设置底面141的第一安装点141A的位置，所以电池包20的连接件能够穿过电池包20第二安装点20A与安装件17连接，一方面能够提高底面141的结构强度，另一方面能够提高电池包20的安装强度。
在一些实施例中，所述车身结构包括两个所述安装件17，两个所述安装件17在车辆的宽度方向间隔设置，每个所述安装件17的一端与所述A柱30连接，另一端与所述车身中央通道16连接。
如图4和图5所示，车身结构包括两个安装件17，安装件17沿车身的宽度方延伸并设置在底面141上。安装件17沿车身的宽度方向延伸，并沿车身的宽度方向间隔设置，设置两个有利于实现车辆的轻量化。
在一些实施例中，所述安装件17的一端的底部与所述前围板14的底面141连接，所述安装件17的一端的顶部与车身地板15连接，所述车身地板15与所述车身中央通道16连接。
在一些实施例中，安装件17包括底部和顶部。其中，安装件17的一端的底部与前围板14的底面141连接，安装件17的一端的顶部与车身地板15连接，所以安装件17也就设置在前围板14的底面141与车身地板15之间。从而能够提高安装件17的安装强度，当电池包20的连接件穿过第二安装点20A与安装件17连接时，也就能够提高电池包20的连接强度。
如图3和图5所示，安装件17为斜梯形闭口截面梁，安装件17的一端的底部与前围板14的底面141粘接，在安装件17上设置第一安装点141A，安装件17的一端的顶部与车身地板15粘接，车身地板15再与车身中央通道16的翻边搭接，安装件17的顶部和底部通过车身中央通道16和车身地板15共同稳固，实现结构骨架的连接传力作用。
在一些实施例中，所述车身结构还包括纵梁根部撑板18，所述纵梁根部撑板18与所述安装件17连接。
如图5所示，车身结构还包括纵梁根部撑板18，其中，纵梁根部撑板18与安装件17连接，从而能够实现在车辆前后方向的传力作用。
在一些实施例中，在车辆高度方向上，所述纵梁根部撑板18设置在所述前围板14与所述车身地板17之间。
如图5所示，纵梁根部撑板18设置在前围板14与车身地板17之间，从而能够实现在车辆高度方向的传力作用。
在一些实施例中，在车辆高度方向上，至少部分所述纵梁根部撑板18设置在所述安装件17的上侧。
如图4和图5所示，在车辆高度方向上，纵梁根部撑板18可以部分设置在安装件17的上侧，也可以全部设置在安装件17的上侧。从而能够实现在车辆高度方向的传力作用，并且还能够提高纵梁根部撑板18与安装件17的之间的连接稳定性。
在一些实施例中，所述纵梁根部撑板18与所述底板连接并形成容纳腔，所述安装件17至少部分设于所述容纳腔并与所述纵梁根部撑板18连接。
如图4所示，纵梁根部撑板18与底板连接并形成容纳腔，例如，纵梁根部撑板18与前围板14连接并形成容纳腔，安装件17与前围板14连接，并且安装件17部分位于容纳腔的内部与纵梁根部撑板18连接。一方面能够提高安装件17的安装稳定性，进一步也就是提高的电池包30的安装强度；另一方面可以实现在安装件17与纵梁根部撑板18之间传力的作用。
在一些实施例中，在车辆的宽度方向上，所述纵梁根部撑板18靠近所述安装件17的一端的横截面积大于远离所述安装件17的一端的横截面积。
如图4所示，在车辆的宽度方向上，纵梁根部撑板18靠近安装件17一端的横截面积大于远离安装件17的一端的横截面积。当安装件17向纵梁根部撑板18传力时，纵梁根部撑板18远离安装件17的一端的横截面积更大，其传力的面积也就更大，传力会更分散。
其中，上述的横截面积是指在车辆的高度方向上截取的横截面的面积。
在一些实施例中，所述纵梁根部撑板18与所述A柱30连接。
如图4所示，纵梁根部撑板18远离安装件17的一端与A柱30连接，一方面能够提高A柱30的连接强度，另一方面能够在车辆的宽度方向上实现向A柱30传力的作用，进一步将力分散，从而提高车身结构的结构强度。
在一些实施例中，在车辆长度方向上，所述纵梁根部撑板18位于所述前围板14的后侧，所述纵梁根部撑板18的前部与所述前围板14连接，所述纵梁根部撑板18的后部与所述安装件17连接。
如图5和图6所述，纵梁根部撑板18包括第一连接处18a、第二连接处18b、第三连接处18c和第四连接处18d，第一连接处18a和第二连接处18b与前围板17连接，第三连接处18c与侧围内板31连接，第四连接处18d与纵梁根部加强块13连接。
在一些实施例中，如图4和图5所示，安装件17的另一端的底部与前围板14的底面141连接，安装件17的另一端的顶部与纵梁根部撑板18连接。所以安装件17的另一端也就位于前围板14的底面141与纵梁根部撑板18之间。从而能够提高安装件17的安装强度，当电池包20的连接件穿过第二安装点20A与安装件17连接时，也就能够提高电池包20的连接强度。并且，安装件17的另一端通过纵梁根部撑板18可以将第二安装点20A的力传到A柱30下端，安装件17的一端可以将力传至车身中央通道16，从而实现力的分散。
如图3、图5和图6所示，安装件17为斜梯形闭口截面梁，安装件17的另一端的顶面与纵梁根部撑板18连接，纵梁根部撑板18分别与车身地板15连接、前围板14的底面141连接、侧围内板31连接、纵梁根部加强块13连接。由图3可以看出安装件17的底部与前围板14的底面141连接，安装件17的顶部与车身地板15连接，两者对安装件17形成上下包裹支撑的作用，进一步加强力值传力路径，即实现力的分散；通过安装件17可以加强前围板14的底面141的第一安装点141A处的结构强度和刚度，稳定整车身10前端，提升车身地板15的抗扭强度进而增强整车扭转刚度，提升整车操控性能。
在一些实施例中，所述车身结构还包括前纵梁11，所述前纵梁11与所述安装件17连接；在车辆前后方向上，所述前纵梁11设置在所述安装件17前侧。
如图4所示，车身结构还包括前纵梁11，前纵梁11与安装件17连接；在车辆前后方向上前纵梁11位于安装件17的前侧，从而能够实现在车辆前后的方向的传力作用。
在一些实施例中，所述前纵梁11与所述纵梁根部撑板18连接，所述前纵梁11通过所述纵梁根部撑板18与所述安装件17连接。
如图4所示，前纵梁11与纵梁根部撑板18连接，前纵梁11通过纵梁根部撑板18与安装件11连接。在车辆的前后方向上，能够实现在前纵梁11、纵梁根部撑板18及安装件17之间的传力路径。
在一些实施例中，所述车身结构还包括门槛总成50，所述前纵梁11与所述前围板14通过前纵梁后接头12连接，所述前纵梁后接头12分别与所述门槛总成50和所述A柱30连接。
在一些实施例中，如图1所示，车身结构还包括前纵梁后接头12。其中，前纵梁11通过前纵梁后接头12与前围板14连接，前纵梁后接头12分别与门槛总成50和A柱30连接。
其中，前纵梁11和前纵梁后接头12均采用铝合金材质，前围板14为碳纤维材质，由于碳纤维在大载荷的作用下，不会发生塑性变形而是直接破碎，如果将前纵梁11和前围板14直接连接，前纵梁11在受到碰撞力后，前纵梁11将碰撞力传导至前围板14，前围板14会存在碰撞破碎的风险。所以，在前纵梁11与前围板14通过前纵梁后接头12连接，前纵梁后接头12将前围板14向下延伸过渡至车身地板15与门槛总成50和A柱30连接，从而形成了前部框架结构，从而能够将前纵梁11受到的碰撞力分散至前围板14、门槛总成50和A柱30，通过接触面积的增加减小了局部力的大小，此结构可以进一步将前碰的力分散，从而进一步降低前围板14破碎的风险。
在一些实施例中，还包括后纵梁71，所述后纵梁71与后纵梁前接头72连接，所述后纵梁前接头72分别与后纵梁内撑梁74、后纵梁外撑梁73连接，所述后纵梁内撑梁74、所述后纵梁外撑梁73与所述后纵梁71的轴线两两相交。
在一些实施例中，如图7所示，车身结构还包括后纵梁71，后纵梁71与后纵梁前接头72连接，后纵梁前接头72还分别与后纵梁内撑梁74和后纵梁外撑梁73连接；换言之，后纵梁71通过后纵梁前接头72与后纵梁内撑梁74和后纵梁外撑梁73连接。
其中，后纵梁71、后纵梁前接头72、后纵梁内撑梁74、后纵梁外撑梁73均为铝合金材质。后纵梁71和后纵梁前接头72采用螺接和焊接的方式连接，后纵梁前接头72和后纵梁内撑梁74采用螺接和焊接的方式连接，后纵梁前接头72和后纵梁外撑梁73采用螺接和焊接的方式连接，从而提高后纵梁71、后纵梁前接头72、后纵梁内撑梁74、后纵梁外撑梁73之间的连接强度，以提高后端与车身10之间的连接强度和力的传递。
如图7所示，后纵梁71通过后纵梁前接头72与后纵梁内撑梁74和后纵梁外撑梁73连接。后纵梁71、后纵梁内撑梁74和后纵梁外撑梁73均形成Y字型结构，后纵梁71受碰撞力之后，能够通过后纵梁前接头72将碰撞力分散至后纵梁内撑梁74和后纵梁外撑梁73。
在一些实施例中，所述后纵梁外撑梁73与门槛总成50连接，所述后纵梁内撑梁74与后围板70连接。
在一些实施例中，后纵梁外撑梁73、后纵梁内撑梁74和门槛总成50材料均为铝合金，后围板70与后围板下横梁75均为碳纤维材料。后纵梁外撑梁73与门槛总成50连通过螺栓连接以提高其连接强度，后纵梁内撑梁74与后围板70之间通过螺栓连接以提高其连接强度。
在一些实施例中，所述后围板70与后围板下横梁75形成口字形空腔体，所述空腔体填充有加强塑料，所述后围板70、所述后围板下横梁75与所述加强塑料一体热固化成型。
在一些实施例中，如图8所示，后围板70与后围板下横梁75之间形成口字形空腔体，口字形空腔体填充有加强塑料，所以，后围板70、后围板下横梁75、加强塑料为一体热固化成型件，从而能保证足够的连接稳定性并能把后碰的力分解从而降低乘员舱破碎的风险。
在一些实施例中，还包括后副车架60，所述后副车架60与所述后纵梁外撑梁73连接，所述后围板70用于与电池包20连接。
在一些实施例中，车身结构还包括后副车架60，后副车架60与后纵梁外撑梁73连接。其中，后副车架60位于后纵梁外撑梁73的下方。电池包20靠近车尾的一侧与后围板70连接。所以电池包20靠近车头的一侧与前围板14连接，电池包20靠近车位的一侧与后围板70连接，前围板14和后围板70为电池包20提供安装空间。
在一些实施例中，在车身长度方向上，所述后副车架60与所述电池包20之间存在间距L2，30mm≤L2≤40mm。
在一些实施例中，后副车架60与电池包20在车身长度方向存在间距L2，其中，L2的范围为30mm－40mm之间。
后副车架60与电池包20之间的间距根据车身10布置空间大小将其设置仅30mm－40mm，从而避免车尾在受到碰撞力之后将碰撞力传至后副车架60上，若后副车架60与电池包20的间距过小，后副车架60会因为碰撞力直接撞击电池包20，从而对电池包20造成损坏。若电池包20受到外力转接很容易出现用电安全的问题。所得使得后副车架60与电池包20之间留有30mm－40mm的间距，在最大限度的利用了后部空间布置电池包20的同时，还能够降低对电池包20的影响，进一步提升整车续航里程及用电安全。
在一些实施例中，在车身宽度方向上，电池包20与门槛总成50连接。
如图9所示，前围板14的底面141向下延伸过渡至车身地板15，并与左右侧的门槛总成50连接，形成了前部框架结构。在车身宽度方向上，电池包20与门槛总成50连接，从而能够提高电池包20的连接强度。
在一些实施例中，所述门槛总成50包括门槛梁51，在车身高度方向上，所述门槛梁51具有层叠的第一层结构511和第二层结构512，在车身宽度方向上，所述第一层结构511的宽度大于所述第二层结构512的宽度。
在一些实施例中，所述第一层结构511与所述第二层结构512形成有容纳空间513，所述容纳空间513用于容纳至少部分电池包20。
在一些实施例中，如图9所示，所述门槛总成50包括门槛梁51。在车身的高度方向，门槛梁51包括第一层结构511和第二层结构512，在车身宽度方向，第一层结构511的宽度大于第二层结构512的宽度，所以第一层结构511与第二层结构512之间形成了一个容纳空间513，而电池包20至少部分嵌设于容纳空间513内。所以，车身地板15的下方的电池包20向左右两侧扩展至门槛总成50上，以此来最大化的利用左右两侧的空间，从而增大了电池包20在车身宽方向的体积和整车续航里程。
在一些实施例中，所述第一层结构511包括多个口字型结构514，所述第二层结构512包括至少一个口字型结构514，所述第一层结构511的口字型结构514的数量大于所述第二层结构512的口字型结构514的数量。
如图9所示，第一层结构511包括多个口字型结构514，第二层结构512包括至少一个口字型结构514，所以，第一层结构511的口字型结构514的数量大于第二层结构512的口字型结构514的数量，所以第一层结构511与第二层结构512之间能够形成容纳空间513。
在一些实施例中，第一层结构511包括三个或者四个口字型结构514，第二层结构512包括一个口字型结构514，并且第二层结构512的口字型结构514为电池包20提供安装位置。将第一层结构511和第二层结构512设置为口字型结构514，能够提高门槛梁51的结构强度，所以第一层结构511和第二层结构512之间形成容纳空间513的情况下，还能够保证门槛梁51的结构强度。
在一些实施例中，在车身宽度方向上，所述门槛梁51的内侧连接侧围内板31，所述门槛梁51的外侧连接侧围外板32，所述侧围内板31与所述侧围外板32连接。
在车身宽度方向上，门槛梁51靠近车内的一侧与侧围内板31连接，门槛梁51靠近车外的一侧与侧围外板32连接。侧围内板31与侧围外板32对扣包住门槛梁51，以提高门槛梁51的结构强度。
在一些实施例中，电池包20具有边框纵梁20C，边框纵梁20C和门槛梁51均为铝合金材质，边框纵梁20C与门槛梁51通过螺栓连接，以提高边框纵梁20C与门槛梁51的结构强度。
在一些实施例中，所述前围板14与所述车身地板15至少有一个为碳纤维材质。
例如，前围板14可以采用碳纤维材材质，车身地板15可以采用碳纤维材质，由于电池包20的外壳采用铝合金材料，铝合金材料与碳纤维材料为异种材料连接，电池包20与前围板14的底面141采用螺栓进行连接，以保证连接强度和连接稳定性。
在一些实施例中，安装件17采用金属材质，能够保证安装件17的结构强度。
在一些实施例中，所述前围板14与所述车身地板15至少有一个为碳纤维材质，且安装件17采用金属材质，以保证铝合金材质的电池包20与碳纤维材质的前围板14或所述车身地板15之间的连接强度，并保证安装件17的结构强度。
本实施例还提供了一种车辆，如图10和图11所示，所述车辆包括电池包20和如前所述的车身结构，所述电池包20设于所述车身结构。
通过将电池包20设置在车身结构上，利用电池包20的本身的刚度，将电池包20加入整车的传力结构中，从而能够通过电池包20提高整车的扭转刚度、弯曲刚度等力学性能。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着，结合实施例描述的特定特征、结构或者特性包括在本申请的至少一个实施例中。此外，请注意，这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本申请的实施例可以在没有这些具体细节的情况下被实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本申请可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (20)

  1. 一种车身结构，其中，包括：
    底板；
    安装件(17)，所述安装件(17)与所述底板连接，所述安装件(17)用于安装电池包(20)；
    在车辆高度方向上，所述底板位于所述安装件(17)的下侧。
  2. 根据权利要求1所述的车身结构，其中，所述底板包括前围板(14)。
  3. 根据权利要求2所述的车身结构，其中，所述车身结构还包括车身地板(15)，所述安装件(17)与所述车身地板(15)连接；
    在车辆高度方向上，所述安装件(17)设置在所述车身地板(15)与所述前围板(14)之间。
  4. 根据权利要求1－3任一项所述的车身结构，其中，所述车身结构包括A柱(30)，所述安装件(17)与所述A柱(30)连接。
  5. 根据权利要求4所述的车身结构，其中，所述车身结构还包括车身中央通道(16)，所述安装件(17)与所述车身中央通道连接(16)。
  6. 根据权利要求5所述的车身结构，其中，所述车身结构包括两个所述安装件(17)，两个所述安装件(17)在车辆的宽度方向间隔设置，每个所述安装件(17)的一端与所述A柱(30)连接，另一端与所述车身中央通道(16)连接。
  7. 根据权利要求4所述的车身结构，其中，所述车身结构还包括纵梁根部撑板(18)，所述纵梁根部撑板(18)与所述安装件(17)连接。
  8. 根据权利要求7所述的车身结构，其中，在车辆高度方向上，所述纵梁根部撑板(18)设置在前围板(14)与所述车身地板(17)之间。
  9. 根据权利要求7所述的车身结构，其中，在车辆高度方向上，至少部分所述纵梁根部撑板(18)设置在所述安装件(17)的上侧。
  10. 根据权利要求7所述的车身结构，其中，所述纵梁根部撑板(18)与所述底板连接并形成容纳腔，所述安装件(17)至少部分设于所述容纳腔并与所述纵梁根部撑板(18)连接。
  11. 根据权利要求7所述的车身结构，其中，在车辆的宽度方向上，所述纵梁根部撑板(18)靠近所述安装件(17)的一端的横截面积大于远离所述安装件(17)的一端的横截面积。
  12. 根据权利要求7所述的车身结构，其中，所述纵梁根部撑板(18)与所述A柱(30)连接。
  13. 根据权利要求7所述的车身结构，其中，在车辆长度方向上，所述纵梁根部撑板(18)位于前围板(14)的后侧，所述纵梁根部撑板(18)的前部与所述前围板(14)连接，所述纵梁根部撑板(18)的后部与所述安装件(17)连接。
  14. 根据权利要求7所述的车身结构，其中，所述车身结构还包括前纵梁(11)，所述前纵梁(11)与所述安装件(17)连接；
    在车辆前后方向上，所述前纵梁(11)设置在所述安装件(17)前侧。
  15. 根据权利要求14所述的车身结构，其中，所述前纵梁(11)与所述纵梁根部撑板(18)连接，所述前纵梁(11)通过所述纵梁根部撑板(18)与所述安装件(17)连接。
  16. 根据权利要求14所述的车身结构，其中，所述车身结构还包括门槛总成(50)，所述前纵梁(11)与前围板(14)通过前纵梁后接头(12)连接，所述前纵梁后接头(12)分别与所述门槛总成(50)和所述A柱(30)连接。
  17. 根据权利要求16所述的车身结构，其中，所述门槛总成(50)包括门槛梁(51)，在车身高度方向上，所述门槛梁(51)具有层叠的第一层结构(511)和第二层结构(512)，在车身宽度方向上，所述第一层结构(511)的宽度大于所述第二层结构(512)的宽度。
  18. 根据权利要求17所述的车身结构，其中，所述第一层结构(511)与所述第二层结构(512)形成有容纳空间(513)，所述容纳空间(513)用于容纳至少部分电池包(20)。
  19. 根据权利要求3所述的车身结构，其中，所述前围板(14)与所述车身地板(15)至少有一个为碳纤维材质；
    或者，所述安装件(17)为金属材质；
    或者，所述前围板(14)与所述车身地板(15)至少有一个为碳纤维材质且所述安装件(17)为金属材质。
  20. 一种车辆，其中，包括：
    电池包(20)；
    所述车辆包括如权利要求1至19任一项所述的车身结构，所述电池包设于所述车身结构。
PCT/CN2025/085947 2024-03-29 2025-03-28 车身结构及车辆 Pending WO2025201544A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410392132.7A CN118270125A (zh) 2024-03-29 2024-03-29 车身结构及车辆
CN202410392132.7 2024-03-29

Publications (1)

Publication Number Publication Date
WO2025201544A1 true WO2025201544A1 (zh) 2025-10-02

Family

ID=91639930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/085947 Pending WO2025201544A1 (zh) 2024-03-29 2025-03-28 车身结构及车辆

Country Status (2)

Country Link
CN (1) CN118270125A (zh)
WO (1) WO2025201544A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118270125A (zh) * 2024-03-29 2024-07-02 比亚迪股份有限公司 车身结构及车辆

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206242A (ja) * 2000-01-24 2001-07-31 Hino Motors Ltd フロントボデー構造
CN110091927A (zh) * 2018-01-30 2019-08-06 丰田自动车株式会社 车辆的地板构造
CN114644055A (zh) * 2020-12-02 2022-06-21 现代自动车株式会社 用于车辆的前围板结构
CN116638944A (zh) * 2022-02-24 2023-08-25 马自达汽车株式会社 车体前部构造
CN116749746A (zh) * 2023-05-30 2023-09-15 安徽江淮汽车集团股份有限公司 新能源汽车的车身电池一体化结构及新能源汽车
WO2024017041A1 (zh) * 2022-07-20 2024-01-25 岚图汽车科技有限公司 一种前围板下横梁结构及汽车
CN118270125A (zh) * 2024-03-29 2024-07-02 比亚迪股份有限公司 车身结构及车辆

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206242A (ja) * 2000-01-24 2001-07-31 Hino Motors Ltd フロントボデー構造
CN110091927A (zh) * 2018-01-30 2019-08-06 丰田自动车株式会社 车辆的地板构造
CN114644055A (zh) * 2020-12-02 2022-06-21 现代自动车株式会社 用于车辆的前围板结构
CN116638944A (zh) * 2022-02-24 2023-08-25 马自达汽车株式会社 车体前部构造
WO2024017041A1 (zh) * 2022-07-20 2024-01-25 岚图汽车科技有限公司 一种前围板下横梁结构及汽车
CN116749746A (zh) * 2023-05-30 2023-09-15 安徽江淮汽车集团股份有限公司 新能源汽车的车身电池一体化结构及新能源汽车
CN118270125A (zh) * 2024-03-29 2024-07-02 比亚迪股份有限公司 车身结构及车辆

Also Published As

Publication number Publication date
CN118270125A (zh) 2024-07-02

Similar Documents

Publication Publication Date Title
CN214057725U (zh) 车辆门槛梁、门槛梁总成及车辆
US9987913B2 (en) Battery mounting structure for vehicle
US8511412B2 (en) Frame structure for mounting battery module in vehicle
US11807306B2 (en) Vehicle body structure
US6805401B2 (en) Vehicle floor structure
CN110304152B (zh) 车辆的前部车身结构
KR20240110647A (ko) 차량
CN116529149A (zh) 电动车辆本体
CN215851491U (zh) 双环后部车身结构
US20230223635A1 (en) Vehicle battery mounting structure
CN110304151B (zh) 车辆的前部车身结构
US12084112B2 (en) Dash panel structure for vehicle
CN116890624A (zh) 车辆
CN102656036A (zh) 车门强化结构
CN110304149B (zh) 车辆的前部车身结构
US20230331308A1 (en) Subframe assembly for a vehicle utilizing scaleable multi-cell extruded siderail members
CN216734484U (zh) 车辆的梁架总成以及车辆
CN115892225A (zh) 车辆前部结构
KR20240104762A (ko) 배터리 탑재 차량의 배터리 보호 구조
CN218519750U (zh) A柱下接头结构及汽车
KR20240164696A (ko) 배터리 케이스
CN118040192A (zh) 电池包防护结构及汽车
WO2025252010A1 (zh) 车身结构和车辆
WO2025228237A1 (zh) 车身结构及车辆
CN220924299U (zh) 前围总成和具有其的车辆

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25776606

Country of ref document: EP

Kind code of ref document: A1