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WO2024221174A1 - 下车体、底盘以及车辆 - Google Patents

下车体、底盘以及车辆 Download PDF

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Publication number
WO2024221174A1
WO2024221174A1 PCT/CN2023/090322 CN2023090322W WO2024221174A1 WO 2024221174 A1 WO2024221174 A1 WO 2024221174A1 CN 2023090322 W CN2023090322 W CN 2023090322W WO 2024221174 A1 WO2024221174 A1 WO 2024221174A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
mounting
mounting plate
vehicle
main body
Prior art date
Application number
PCT/CN2023/090322
Other languages
English (en)
French (fr)
Inventor
王志文
贺斌
郭辉
Original Assignee
宁德时代(上海)智能科技有限公司
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代(上海)智能科技有限公司, 宁德时代新能源科技股份有限公司 filed Critical 宁德时代(上海)智能科技有限公司
Priority to PCT/CN2023/090322 priority Critical patent/WO2024221174A1/zh
Publication of WO2024221174A1 publication Critical patent/WO2024221174A1/zh

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Definitions

  • the present application relates to the technical field of vehicles, and more particularly, to an underbody, a chassis and a vehicle.
  • the present application provides a lower body, a chassis and a vehicle, which can reduce the cost of the vehicle.
  • an embodiment of the present application provides a lower body of a vehicle.
  • the lower body includes a first cross beam, a first longitudinal beam, a torsion box, a first cover plate, and a second cover plate.
  • the torsion box includes a main body, a first connecting plate, and a second connecting plate, the main body connects the first cross beam and the first longitudinal beam, and the first connecting plate and the second connecting plate are arranged at intervals and connected to the main body.
  • the first cover plate is connected to the first connecting plate, and the second cover plate is connected to the second connecting plate.
  • the torsion box, the first cover plate, and the second cover plate are used to form at least a part of a battery box, and the battery box is used to accommodate battery cells.
  • the torsion box By arranging a first connecting plate and a second connecting plate on the torsion box, the torsion box can be connected to the first cover plate and the second cover plate of the vehicle, so that the torsion box and the battery box are integrated together, thereby reducing the number of parts, saving space, improving structural efficiency, reducing vehicle weight, and increasing cruising range.
  • a first mounting portion is provided at one end of the main body, the first mounting portion includes a first mounting plate and a second mounting plate connected to the first connecting plate, and a preset angle is formed between the second mounting plate and the first mounting plate. At least one of the first mounting plate and the second mounting plate is used to connect to the first longitudinal beam.
  • the torsion box can effectively disperse the collision force by virtue of the connection between the main body and the first longitudinal beam, thereby reducing the deformation of the lower body, reducing the risk of battery cell compression, and improving reliability.
  • both the first mounting plate and the second mounting plate can be used to fit with the first longitudinal beam, which can help to achieve positioning between the first mounting portion and the first longitudinal beam and simplify the assembly process.
  • the second mounting plate is perpendicular to the first mounting plate.
  • An L-shaped contact surface may be formed between the first longitudinal beam and the first mounting portion, which helps to simplify the requirements on the shape of the first longitudinal beam and improve the connection strength between the first longitudinal beam and the first mounting portion.
  • the first mounting plate is located at one end of the main body along the first direction.
  • the first connecting plate and the second mounting plate are respectively connected to two opposite surfaces of the first mounting plate along the second direction.
  • the second mounting plate is perpendicular to the third direction.
  • the first direction, the second direction and the third direction are perpendicular to each other.
  • the second mounting plate and the first connecting plate can be connected to the first mounting plate from both sides of the first mounting plate, respectively, which can reduce the risk of interference between the second mounting plate and the first connecting plate.
  • the main body is further provided with a second mounting portion, and the lower body further includes a second longitudinal beam and a connecting member.
  • the second mounting portion includes a third mounting plate, a fourth mounting plate, and a fifth mounting plate.
  • the third mounting plate and the fifth mounting plate are respectively connected to both ends of the fourth mounting plate, and extend to opposite sides of the fourth mounting plate.
  • the third mounting plate and the fifth mounting plate are used to connect with the connecting member so that the third mounting plate, the fourth mounting plate, and the connecting member surround the second longitudinal beam.
  • the torsion box can transfer and disperse stress between the first longitudinal beam and the second longitudinal beam, thereby reducing the deformation of the lower body, reducing the risk of battery cell compression, and improving reliability.
  • the third mounting plate and the fourth mounting plate are at a certain angle.
  • the third mounting plate and the fourth mounting plate can be used to fit the second longitudinal beam, which can help to achieve the positioning between the second mounting portion and the second longitudinal beam and simplify the assembly process.
  • the third mounting plate and the fifth mounting plate can provide mounting points for the connecting member, so that the connecting member can wrap and fasten the second longitudinal beam together with the second mounting portion, thereby improving the connection strength between the torsion box and the second longitudinal beam.
  • the lower vehicle body further includes a shock tower.
  • the third mounting plate is used to be disposed between the second longitudinal beam and the shock tower and connected to the shock tower and the second longitudinal beam. When the second longitudinal beam is impacted, the collision force can be transmitted to the shock tower through the third mounting plate, thereby effectively dispersing the collision force, reducing the deformation of the lower vehicle body, reducing the risk of pressure on the battery cell, and improving reliability.
  • Inserting the third mounting plate between the second longitudinal beam and the shock tower allows the third mounting plate to be connected to the second longitudinal beam and the shock tower at the same time, which helps to simplify the assembly process.
  • the lower body also includes an adapter plate connected to the shock tower.
  • the main body also includes a third mounting portion, and the third mounting portion is used to connect to the adapter plate.
  • a connection point can be provided for the adapter plate, so that the shock tower is connected to the third mounting portion through the adapter plate, thereby improving the connection strength between the shock tower and the torque box.
  • the second mounting portion is connected to the third mounting portion.
  • the collision force can be transmitted and dispersed between the second mounting portion and the third mounting portion, thereby reducing the risk of deformation of the torsion box.
  • the first mounting portion and the second mounting portion are respectively located at two ends of the main body.
  • the main body is not easily twisted and deformed, thereby improving the anti-deformation ability of the torsion box.
  • the first longitudinal beam is used to connect the first cover plate and the second cover plate and forms a part of the battery box.
  • the first longitudinal beam is integrated with the battery box to reduce the number of parts, save space, improve structural efficiency, reduce vehicle weight, and increase driving range.
  • the torsion box further includes an interface connected to the main body, and the interface is at least used to connect to the first crossbeam.
  • the torsion box can effectively disperse the collision force by virtue of the connection between the interface and the first crossbeam, thereby reducing the deformation of the lower body, reducing the risk of the battery cell being compressed, and improving reliability.
  • the first crossbeam is used to connect the first cover plate and the second cover plate and forms a part of the battery box.
  • the first crossbeam is integrated with the battery box to reduce the number of parts, save space, improve structural efficiency, reduce vehicle weight, and increase driving range.
  • the lower body further includes a second cross beam.
  • the interface is also used to connect with the second cross beam, and the second cross beam is used to connect with the front panel of the vehicle.
  • the torsion box can effectively disperse and transfer the collision force on the front panel to the rear of the lower body by virtue of its connection relationship with the first longitudinal beam, the first cross beam and the second cross beam, thereby reducing the deformation of the front part of the lower body and protecting the safety of the driver and passengers in the vehicle.
  • the main body is provided with a mounting hole, and the mounting hole is used to cooperate with a fastener to detachably connect the main body to the upper body of the vehicle.
  • the torque box can be detachably connected to the upper body by setting the mounting hole, thereby realizing the separation, decoupling and connection between the torque box and the upper body, which is helpful for the maintenance and replacement of the torque box.
  • a concave portion is provided on a side of the main body facing the upper vehicle body, and a mounting hole is provided on the bottom surface of the concave portion.
  • the recessed portion can play a positioning role, which helps to make the mounting hole face the matching structure of the upper body, so as to improve the assembly efficiency.
  • the main body has a support area, and the support area is used to clamp the sealing component with the upper body of the vehicle. Both sides of the support area are provided with mounting holes.
  • the support area of the main body can support the sealing component to achieve sealing between the torque box and the upper body, reduce impurities entering the passenger compartment, improve passenger experience, and enhance vehicle reliability.
  • Both sides of the support area are provided with mounting holes, that is, both sides of the sealing component are provided with connection points between the torque box and the upper body, so that the sealing component can be compressed to improve the air tightness and water tightness of the vehicle.
  • the main body is further provided with a fourth mounting portion, and the fourth mounting portion is used to mount the subframe of the vehicle. Integrating the mounting point of the subframe into the torsion box can reduce the number of parts of the whole vehicle product, reduce the weight of the whole vehicle, and reduce the cost of vehicle development.
  • an embodiment of the present application provides a chassis of a vehicle, comprising a battery cell and a lower vehicle body provided by any embodiment of the first aspect.
  • the battery cell is accommodated in a battery box and is located between a first cover plate and a second cover plate.
  • the battery cells are bonded to the first cover plate, which can improve the overall rigidity of the first cover plate and reduce deformation of the first cover plate when the vehicle collides.
  • the first cover plate is the floor of the vehicle.
  • the battery cells are installed on the floor so that the floor can also be used as a cover plate for the battery, thereby reducing some redundant structures of traditional batteries, increasing the vehicle's cruising range, and achieving the effect of reducing weight and cost.
  • an embodiment of the present application provides a vehicle, comprising a lower body provided by any embodiment of the first aspect.
  • an embodiment of the present application provides a vehicle, comprising the chassis provided by any embodiment of the second aspect.
  • FIG1 is an exploded schematic diagram of a vehicle provided in some embodiments of the present application.
  • FIG2 is a partial schematic diagram of a vehicle provided in some embodiments of the present application.
  • FIG3 is a schematic structural diagram of a torsion box provided in some embodiments of the present application.
  • FIG4 is a schematic structural diagram of the torsion box shown in FIG3 at another angle
  • FIG5 is a schematic structural diagram of the torsion box shown in FIG3 at another angle
  • FIG6 is a schematic top view of the torque box shown in FIG3 ;
  • FIG. 7 is a schematic structural diagram of the torsion box shown in FIG. 3 at another angle.
  • 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.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this application generally indicates that the associated objects before and after are in an "or" relationship.
  • parallel includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, “vertical” also includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering.
  • angle between the two directions is 80°-90°, which can be considered as the two The directions are perpendicular; the angle between the two directions is 0°-10°, and the two directions can be considered parallel.
  • the torsion box of the vehicle is usually connected to the cross beam and the longitudinal beam of the vehicle to achieve relative fixation between the cross beam and the longitudinal beam and improve the continuity of force transmission between the cross beam and the longitudinal beam.
  • the battery cells of the vehicle are usually first integrated into the battery box of the battery pack and then installed on the body of the vehicle along with the battery box.
  • the torque box and the battery box are independent of each other and have no connection with each other, which results in a larger number of vehicle parts and a heavier vehicle weight, affecting the vehicle's range.
  • an embodiment of the present application provides a technical solution, which integrates the torque box with the battery box, reduces the number of components, saves space, improves structural efficiency, reduces vehicle weight, and increases cruising range.
  • the technical solution described in the embodiments of the present application is applicable to a vehicle.
  • the vehicle may be a new energy vehicle, which may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle.
  • FIG1 is an exploded schematic diagram of a vehicle provided in some embodiments of the present application.
  • a vehicle may include a battery.
  • the battery can not only be used as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.
  • the battery includes a plurality of battery cells 1 .
  • the battery cell 1 may include a lithium-ion battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., which is not limited in the present embodiment.
  • the battery cell 1 may be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the present embodiment.
  • the vehicle includes a vehicle body, and a plurality of battery cells 1 may be mounted on the vehicle body.
  • the vehicle body includes an upper vehicle body 2 and a lower vehicle body 3 connected to the upper vehicle body 2.
  • the lower vehicle body 3 is detachably connected to the upper vehicle body 2.
  • a plurality of battery cells 1 are mounted on the lower vehicle body 3 .
  • the vehicle body includes a torque box 4.
  • the lower vehicle body 3 includes a torque box 4.
  • the lower vehicle body 3 includes a first longitudinal beam 31 and a first transverse beam 32 , and the torsion box 4 connects the first longitudinal beam 31 and the first transverse beam 32 .
  • the first longitudinal beam 31 extends along the length direction of the vehicle.
  • the first longitudinal beam 31 may be a rocker beam of the lower body 3 .
  • the first cross member 32 extends in the width direction of the vehicle.
  • Figure 2 is a partial schematic diagram of a vehicle provided in some embodiments of the present application
  • Figure 3 is a structural schematic diagram of a torsion box provided in some embodiments of the present application
  • Figure 4 is a structural schematic diagram of the torsion box shown in Figure 3 at another angle
  • Figure 5 is a structural schematic diagram of the torsion box shown in Figure 3 at yet another angle.
  • the lower body 3 of the embodiment of the present application includes a torsion box 4 , a first longitudinal beam 31 , a first transverse beam 32 , a first cover plate 33 and a second cover plate 34 .
  • the torque box 4 includes a main body 11, a first connecting plate 12 and a second connecting plate 13.
  • the main body 11 is connected to the first longitudinal beam 31 and the first transverse beam 32.
  • the first connecting plate 12 and the second connecting plate 13 are arranged at intervals and connected to the main body 11.
  • the first cover plate 33 is connected to the first connecting plate 12; the second cover plate 34 is connected to the second connecting plate 13.
  • the torque box 4, the first cover plate 33 and the second cover plate 34 are used to form at least a part of the battery box 5, and the battery box 5 is used to accommodate the battery cell 1.
  • first connecting plates 12 there may be one or more first connecting plates 12.
  • first connecting plate 12 there may be one first connecting plate 12.
  • second connecting plates 13 For example, there is one second connecting plate 13.
  • the first connecting plate 12 and the second connecting plate 13 protrude from the main body 11 , and the two can form a double-layer flange structure.
  • the embodiment of the present application does not limit the connection method between the first connecting plate 12 and the first cover plate 33.
  • the first connecting plate 12 can be connected to the first cover plate 33 by welding, bonding, fastener connection or other methods.
  • the embodiment of the present application does not limit the connection method between the second connecting plate 13 and the second cover plate 34.
  • the second connecting plate 13 can be connected to the second cover plate 34 by welding, bonding, fastener connection or other methods.
  • the battery case 5 may be used to accommodate a plurality of battery cells 1.
  • the battery case 5 may protect the battery cells 1 from the outside, thereby improving the reliability of the battery cells 1.
  • the battery box 5 has a receiving cavity 51, and a plurality of battery cells 1 can be received in the receiving cavity 51.
  • the torsion box 4, the first cover plate 33, the second cover plate 34 and other components of the vehicle are used to define the receiving cavity 51.
  • the torque box 4 can be connected to the first cover plate 33 and the second cover plate 34 of the vehicle, so that the torque box 4 is integrated with the battery box 5, thereby reducing the number of parts, saving space, improving structural efficiency, reducing vehicle weight, and increasing cruising range.
  • the first connecting plate 12 and the second connecting plate 13 are arranged along the height direction of the vehicle.
  • the first connecting plate 12 may be located above the second connecting plate 13; correspondingly, the first cover plate 33 may be an upper cover plate, and the second cover plate 34 may be a lower cover plate.
  • first connecting plate 12 and the first cover plate 33 may be connected by means of rotary tapping rivets (FDS).
  • FDS rotary tapping rivets
  • the first connecting plate 12 and the first cover plate 33 are bonded by colloid, which can seal the gap between the first connecting plate 12 and the first cover plate 33 and improve the air tightness and water tightness of the battery box 5 .
  • At least part of the colloid is disposed between the first connecting plate 12 and the first cover plate 33 .
  • the first connecting plate 12 and the first cover plate 33 are bonded by structural adhesive.
  • the second connecting plate 13 and the second cover plate 34 may be connected by means of rotary tapping rivets (FDS).
  • FDS rotary tapping rivets
  • the second connecting plate 13 and the second cover plate 34 are bonded by colloid, which can seal the gap between the second connecting plate 13 and the second cover plate 34 to improve the air tightness and water tightness of the battery box 5 .
  • At least part of the colloid is disposed between the second connecting plate 13 and the second cover plate 34 .
  • the second connecting plate 13 and the second cover plate 34 are bonded by structural adhesive.
  • the first connecting plate 12 is in the shape of a flat plate.
  • the second connecting plate 13 is in the shape of a flat plate.
  • the first cover plate 33 is overlapped on the first connecting plate 12 from a side of the first connecting plate 12 facing away from the second connecting plate 13
  • the second cover plate 34 is overlapped on the second connecting plate 13 from a side of the second connecting plate 13 facing away from the first connecting plate 12 .
  • the torsion box 4 includes a reinforcing rib plate 14 , which is connected between the first connecting plate 12 and the second connecting plate 13 .
  • a first mounting portion 111 is provided at one end of the main body 11.
  • the first mounting portion 111 is used to Connected to the first longitudinal beam 31 of the vehicle.
  • the first longitudinal beam 31 may be a beam extending along the length direction of the vehicle.
  • the present application does not limit the specific position of the first longitudinal beam 31.
  • the first longitudinal beam 31 may be a sill beam, a front longitudinal beam or a rear longitudinal beam of the lower body 3.
  • the torsion box 4 can effectively disperse the collision force by virtue of the connection between the main body 11 and the first longitudinal beam 31 , thereby reducing the deformation of the lower body 3 , reducing the risk of the battery cell 1 being compressed, and improving reliability.
  • the first longitudinal beam 31 is used to connect the first cover plate 33 and the second cover plate 34 , and forms a part of the battery box 5 .
  • the embodiment of the present application integrates the first longitudinal beam 31 with the battery box 5, thereby reducing the number of components, saving space, improving structural efficiency, reducing vehicle weight, and increasing cruising range.
  • the vehicle includes a first cross beam 32
  • the torsion box 4 is further used to connect the first cross beam 32 .
  • the vehicle includes two first longitudinal beams 31 and two first transverse beams 32 .
  • the first longitudinal beam 31 extends along a first direction X
  • the first transverse beam 32 extends along a second direction Y
  • the first direction X is perpendicular to the second direction Y.
  • the first direction X is parallel to the length direction of the vehicle
  • the second direction Y is parallel to the width direction of the vehicle.
  • the two first longitudinal beams 31 may be arranged at intervals along the second direction Y, and the two first transverse beams 32 may be arranged at intervals along the first direction X.
  • the vehicle may include four torsion boxes 4, and each first cross beam 32 is connected to two first longitudinal beams 31 through two torsion boxes 4.
  • the torsion boxes 4 can achieve relative fixation between the first cross beam 32 and the first longitudinal beam 31, and improve the continuity of force transmission between the first cross beam 32 and the first longitudinal beam 31.
  • the first cover plate 33 is connected to the two first longitudinal beams 31, the two first transverse beams 32 and the four torsion boxes 4, and the second cover plate 34 is connected to the two first longitudinal beams 31, the two first transverse beams 32 and the four torsion boxes 4.
  • the two first longitudinal beams 31, the two first transverse beams 32 and the four torsion boxes 4 enclose to form a receiving cavity 51 for receiving the battery cell 1.
  • the two torque boxes 4 near the front of the vehicle may be referred to as front torque boxes, and the two torque boxes 4 near the rear of the vehicle may be referred to as rear torque boxes.
  • the first longitudinal beam 31 may be a rocker beam of the lower vehicle body 3 .
  • the first mounting portion 111 includes a first mounting plate 111a and a second mounting plate 111b connected to the first connecting plate 12, and a preset angle is formed between the second mounting plate 111b and the first mounting plate 111a. At least one of the first mounting plate 111a and the second mounting plate 111b is used to connect to the first longitudinal beam 31.
  • the second mounting plate 111b is arranged to intersect with the first mounting plate 111a.
  • the preset angle is ⁇ , 0° ⁇ 90°.
  • the first mounting plate 111a may be connected to the first longitudinal beam 31
  • the second mounting plate 111b may be connected to the first longitudinal beam 31
  • both the first mounting plate 111a and the second mounting plate 111b may be connected to the first longitudinal beam 31.
  • both the first mounting plate 111 a and the second mounting plate 111 b can be used to fit with the first longitudinal beam 31 , which can help achieve positioning between the first mounting portion 111 and the first longitudinal beam 31 and simplify the assembly process.
  • the first mounting plate 111a is attached to and connected with the first longitudinal beam 31, and the second mounting plate 111b is attached to the first longitudinal beam 31.
  • the second mounting plate 111b plays a positioning role, while the first mounting plate 111a plays a fixed connection role.
  • the first mounting plate 111 a is connected to the first longitudinal beam 31 by fasteners (eg, bolts).
  • the first mounting plate 111 a is provided with holes for bolts to pass through, while the second mounting plate 111 b is not provided with holes.
  • the second mounting plate 111b is perpendicular to the first mounting plate 111a.
  • An L-shaped contact surface may be formed between the first longitudinal beam 31 and the first mounting portion 111, which helps to simplify the shape requirements of the first longitudinal beam 31 and improve the connection strength between the first longitudinal beam 31 and the first mounting portion 111.
  • the first mounting plate 111a is located at one end of the main body 11 along the first direction X.
  • the first connecting plate 12 and the second mounting plate 111b are respectively connected to two opposite surfaces of the first mounting plate 111a along the second direction Y.
  • the second mounting plate 111b is perpendicular to the third direction Z.
  • the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
  • the third direction Z may be parallel to the height direction of the vehicle.
  • the first mounting plate 111 a is substantially flat and perpendicular to the second direction Y.
  • the second mounting plate 111 b is substantially in the shape of a flat plate and is perpendicular to the third direction Z.
  • the second mounting plate 111 b and the first connecting plate 12 may be connected to the first mounting plate 111 a from both sides of the first mounting plate 111 a , respectively, which may reduce the risk of interference between the second mounting plate 111 b and the first connecting plate 12 .
  • the main body 11 is further provided with a second mounting portion 112 , and the lower body 3 further includes a second longitudinal beam 36 , and the second mounting portion 112 is at least used to be connected to the second longitudinal beam 36 .
  • the embodiment of the present application does not limit the position of the second longitudinal beam 36.
  • the first longitudinal beam 31 is a threshold beam
  • the second longitudinal beam 36 is a front longitudinal beam
  • the torque box 4 is a front torque box
  • the first longitudinal beam 31 is a threshold beam
  • the second longitudinal beam 36 is a rear longitudinal beam
  • the torque box 4 is a rear torque box
  • the first longitudinal beam 31 is a front longitudinal beam
  • the second longitudinal beam 36 is a threshold beam.
  • the torsion box 4 can transfer and disperse stress between the first longitudinal beam 31 and the second longitudinal beam 36, thereby reducing the deformation of the lower vehicle body, reducing the risk of the battery cell 1 being compressed, and improving reliability.
  • first mounting portion 111 and the second mounting portion 112 are respectively located at two ends of the main body 11.
  • first mounting portion 111 and the second mounting portion 112 are respectively located at two ends of the main body 11 along the first direction X.
  • the first mounting portion 111 and the second mounting portion 112 are disposed at both ends of the main body 11 .
  • the main body 11 is not easily twisted and deformed, thereby improving the anti-deformation capability of the torsion box 4 .
  • the torsion box 4 is a front torsion box
  • the first longitudinal beam 31 is a door sill beam
  • the second longitudinal beam 36 is a front longitudinal beam.
  • the torsion box 4 can connect the front cabin of the vehicle to the battery box 5 .
  • the torsion box 4 can effectively disperse and transmit the collision force to the rear of the lower body by virtue of its connection with the first longitudinal beam 31 and the second longitudinal beam 36, thereby reducing the deformation of the front part of the lower body and protecting the safety of the driver and passengers in the vehicle.
  • the lower body 3 includes a second longitudinal beam 36 and a connecting member 37 .
  • the second mounting portion 112 includes a third mounting plate 112a, a fourth mounting plate 112b, and a fifth mounting plate 112c.
  • the third mounting plate 112a and the fifth mounting plate 112c are respectively connected to both ends of the fourth mounting plate 112b, and extend to opposite sides of the fourth mounting plate 112b.
  • the third mounting plate 112a and the fifth mounting plate 112c are used to connect with the connecting member 37, so that the third mounting plate 112a, the fourth mounting plate 112b and the connecting member 37 surround the second longitudinal beam 36.
  • the third mounting plate 112a and the fourth mounting plate 112b are at a certain angle.
  • the third mounting plate 112a and the fourth mounting plate 112b can be used to fit the second longitudinal beam 36, which can help to achieve the positioning between the second mounting portion 112 and the second longitudinal beam 36 and simplify the assembly process.
  • the third mounting plate 112a and the fifth mounting plate 112c can provide mounting points for the connecting member 37, so that the connecting member 37 can wrap and fasten the second longitudinal beam 36 together with the second mounting portion 112, thereby improving the connection strength between the torque box 4 and the second longitudinal beam 36.
  • the third mounting plate 112a is perpendicular to the fourth mounting plate 112b.
  • the fifth mounting plate 112c is perpendicular to the fourth mounting plate 112b.
  • the fourth mounting plate 112b is perpendicular to the third direction Z.
  • the third mounting plate 112a and the fifth mounting plate 112c are both provided with holes for bolts to pass through.
  • the lower body 3 further includes a shock absorbing tower 38 .
  • the second mounting portion 112 is also used to connect the shock tower 38 to the second longitudinal rail 36 .
  • the collision force can be transmitted to the shock tower 38 through the second mounting portion 112, thereby effectively dispersing the collision force, reducing the deformation of the lower vehicle body, reducing the risk of the battery cell 1 being compressed, and improving reliability.
  • the second mounting portion 112 includes a third mounting plate 112 a , which is used to be disposed between the second longitudinal beam 36 and the shock tower 38 and connected to the shock tower 38 and the second longitudinal beam 36 .
  • Inserting the third mounting plate 112 a between the second longitudinal beam 36 and the shock tower 38 allows the third mounting plate 112 a to be connected to the second longitudinal beam 36 and the shock tower 38 at the same time, which helps to simplify the assembly process.
  • the bolts pass through the shock tower 38 and the third mounting plate 112 a and are connected to the second longitudinal rail 36 .
  • the lower vehicle body 3 further includes an adapter plate 39 connected to the shock tower 38 .
  • the main body 11 further includes a third mounting portion 113 , and the third mounting portion 113 is used to connect with the adapter plate 39 .
  • a connection point can be provided for the adapter plate 39 , so that the shock tower 38 is connected to the third mounting portion 113 through the adapter plate 39 , thereby improving the connection strength between the shock tower 38 and the torque box 4 .
  • a support plate 115 is provided on one side of the main body 11 along the third direction Z, and the third mounting portion 113 includes a flange structure bent relative to the support plate 115 .
  • the second mounting portion 112 is connected to the third mounting portion 113.
  • the collision force can be transmitted and dispersed between the second mounting portion 112 and the third mounting portion 113, thereby reducing the risk of deformation of the torsion box 4.
  • the third mounting portion 113 is directly connected to the third mounting plate 112 a .
  • the torque box 4 further includes an interface 15 connected to the main body 11, and the interface 15 is at least Connected to the first cross beam 32 .
  • the torsion box 4 can effectively disperse the collision force by virtue of the connection between the interface 15 and the first cross beam 32, thereby reducing the deformation of the lower body 3, reducing the risk of the battery cell 1 being compressed, and improving reliability.
  • the first cross beam 32 is used to connect the first cover plate 33 and the second cover plate 34 , and forms a part of the battery box 5 .
  • the embodiment of the present application integrates the first cross beam 32 with the battery box 5, thereby reducing the number of components, saving space, improving structural efficiency, reducing vehicle weight, and increasing cruising range.
  • the interface 15 is a flange structure protruding from the main body 11 .
  • the interface 15 is located at one side of the main body 11 along the second direction Y.
  • the interface 15 and the first beam 32 are connected by rotary tapping rivets (FDS) and welding.
  • the lower body 3 further includes a second cross beam 35 .
  • the interface 15 is further used to connect with a second cross beam 35 , and the second cross beam 35 is used to connect with the front wall panel 21 of the vehicle.
  • the torsion box 4 can effectively disperse and transmit the collision force on the front panel 21 to the rear part of the lower body by virtue of its connection with the first longitudinal beam 31, the first cross beam 32 and the second cross beam 35, thereby reducing the deformation of the front part of the lower body and protecting the safety of the driver and passengers in the vehicle.
  • the interface 15 and the second cross beam 35 are connected by rotary tapping rivets (FDS) and welding.
  • the second cross beam 35 is located on an upper side of the first cross beam 32 .
  • the second beam 35 is connected to the first beam 32 .
  • the main body 11 is provided with a mounting hole 116 , and the mounting hole 116 is used to cooperate with a fastener to detachably connect the main body 11 to the upper body 2 of the vehicle.
  • the mounting hole 116 may be a plain hole or a threaded hole, a through hole or a blind hole.
  • the fastener may include at least one of a bolt, a stud, a screw, and a pin.
  • the number of the mounting hole 116 may be one or more.
  • the torque box 4 can realize a detachable connection between the torque box 4 and the upper vehicle body 2 , thereby realizing separation, decoupling and connection between the torque box 4 and the upper vehicle body 2 , which helps to realize maintenance and replacement of the torque box 4 .
  • a side of the main body 11 facing the upper vehicle body 2 is provided with a recess 117.
  • a mounting hole 116 is provided on a bottom surface 117a of the recess.
  • the recess 117 can play a positioning role, which helps to make the mounting hole 116 face the matching structure of the upper body 2 to improve the assembly efficiency.
  • the bottom surface 117a of the recess is perpendicular to the height direction of the vehicle.
  • the upper vehicle body 2 can be moved along the height direction to abut against the bottom surface 117a of the recess, which can simplify the assembly process.
  • FIG. 6 is a schematic top view of the torsion box shown in FIG. 3 .
  • the main body 11 has a support area 118, and the support area 118 is used to clamp the sealing component 6 with the upper body 2 of the vehicle. Both sides of the support area 118 are provided with mounting holes 116.
  • the support plate 115 has a support region 118 .
  • the sealing component 6 can achieve sealing by compression deformation.
  • the present application embodiment does not limit the material of the sealing component 6; for example, the sealing component 6 can be made of an elastic and compressible material, such as rubber, foam, etc.
  • the support area 118 of the main body 11 can support the sealing component 6 to achieve sealing between the torque box 4 and the upper body 2, reduce impurities entering the passenger compartment, improve passenger experience, and enhance the reliability of the vehicle.
  • Both sides of the support area 118 are provided with mounting holes 116, that is, both sides of the sealing component 6 are provided with connection points between the torque box 4 and the upper body 2, so that the sealing component 6 can be compressed to improve the air tightness and water tightness of the vehicle.
  • FIG. 7 is a schematic structural diagram of the torsion box shown in FIG. 3 at another angle.
  • the main body 11 is further provided with a fourth mounting portion 114 , and the fourth mounting portion 114 is used for mounting a sub-frame of the vehicle.
  • the embodiment of the present application integrates the mounting point of the subframe onto the torsion box 4 , which can reduce the number of parts of the whole vehicle product, reduce the weight of the whole vehicle, and reduce the development cost of the whole vehicle.
  • the fourth mounting portion 114 is disposed on a side of the main body 11 away from the third mounting portion 113.
  • the fourth mounting portion 114 is disposed on a side of the main body 11 facing the ground.
  • the subframe may be connected to the fourth mounting portion 114 by bolts.
  • the present embodiment further provides a chassis 7, which includes the lower vehicle body 3 of any of the above embodiments.
  • the battery cell 1 is accommodated in the battery box 5 and is located between the first cover plate 33 and the second cover plate 34.
  • the battery cell 1 may be the smallest unit that can independently realize charging and discharging.
  • the battery cell 1 may include a lithium-ion secondary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, etc., which is not limited in the embodiments of the present application.
  • the battery cell may be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present application. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which is not limited in the embodiments of the present application.
  • the embodiment of the present application can utilize the torsion box 4, the first cover plate 33, the second cover plate 34 and other structures of the chassis 7 to integrate the components with the battery box 5, thereby reducing the number of parts, saving space, improving structural efficiency, reducing vehicle weight, and increasing driving range.
  • the embodiment of the present application integrates the battery cell 1 onto the chassis 7 to achieve CTC (Cell to Chassis) battery chassis integration.
  • the lower body 3 is detachably connected to the upper body 2.
  • the upper body 2 and the lower body 3 can be separated, decoupled and connected, thereby realizing the independent development of the upper body 2 and the lower body 3, so that the upper body 2 and the lower body 3 can be replaced according to needs, shortening the research and development cycle and reducing costs.
  • a lower vehicle body 3 can be matched with upper vehicle bodies 2 of different shapes to meet the user's demand for diversified shapes.
  • the chassis 7 may further include a drive system and a chassis system, wherein the chassis system includes a transmission system, a travel system, a steering system, and a brake system.
  • the drive system may include a motor.
  • the embodiment of the present application integrates the battery system, drive system and chassis system together to reduce the number of parts. It reduces the weight of the vehicle and increases the battery life.
  • the chassis 7 of the embodiment of the present application has high adaptability, improves the matching degree with the whole vehicle, and can be quickly and flexibly mass-produced.
  • the chassis 7 is highly integrated and modularized, and can be cross-platform adapted to various levels and types of future models. At the same time, it is precisely because of the high degree of integration and modularization that the number of parts and production steps are better simplified, and the battery capacity and driving range are improved while reducing costs.
  • the complete chassis system, battery system and drive system can be integrated on the lower body 3, so that the entire chassis 7 can be designed and operated independently of the upper body 2, and the drive part and the passenger compartment of the whole vehicle can be developed and assembled independently of each other.
  • the vehicle further includes a vehicle interior, a human-computer interaction system, and an entertainment system installed on the upper vehicle body 2.
  • vehicle interior, the human-computer interaction system, and the entertainment system can be developed independently of the chassis 7.
  • the battery cell 1 is bonded to the first cover plate 33 .
  • Bonding the battery cell 1 to the first cover plate 33 can also improve the overall rigidity of the first cover plate 33 and reduce deformation of the first cover plate 33 when the vehicle collides.
  • the first cover panel 33 is a floor of the vehicle.
  • the battery cell 1 is installed on the floor so that the floor can also be used as a cover for the battery, thereby reducing some redundant structures of traditional batteries, increasing the cruising range of the vehicle, and achieving the effect of reducing weight and cost.
  • An embodiment of the present application also provides a vehicle, which includes the lower vehicle body 3 provided in any of the aforementioned embodiments.
  • An embodiment of the present application further provides a vehicle, which includes the chassis 7 provided by any of the aforementioned embodiments.
  • the vehicle includes an upper vehicle body 2 and a sealing component 6.
  • the upper vehicle body 2 is connected to the lower vehicle body 3, and the sealing component 6 is sandwiched between the upper vehicle body 2 and the lower vehicle body 3.
  • the sealing component 6 may have the advantages of being dustproof, waterproof, soundproof, wear-resistant, and easy to maintain.
  • the upper body 2 is detachably connected to the lower body 3.
  • the upper body 2 is detachably connected to the lower body 3 by bolts.
  • the embodiment of the present application provides a torque box 4, which includes a main body 11, a first connecting plate 12 and a second connecting plate 13, wherein the first connecting plate 12 and the second connecting plate 13 are arranged at intervals and connected to the main body 11.
  • the first connecting plate 12 is used to connect to a first cover plate 33 of a vehicle
  • the second connecting plate 13 is used to connect to a second cover plate 34 of the vehicle.
  • the torque box 4, the first cover plate 33 and the second cover plate 34 are used to form at least a portion of the battery box 5.
  • an embodiment of the present application provides a lower vehicle body 3 , which includes a first longitudinal beam 31 , a first transverse beam 32 , a first cover plate 33 , a second cover plate 34 , a second transverse beam 35 , a second longitudinal beam 36 , a shock tower 38 , an adapter plate 39 and a torque box 4 .
  • the torque box 4 includes a main body 11 , a first connecting plate 12 , a second connecting plate 13 and an interface 15 .
  • the first connecting plate 12 and the second connecting plate 13 are spaced apart and connected to the main body 11.
  • the first connecting plate 12 is used to be connected to a first cover plate 33 of the vehicle
  • the second connecting plate 13 is used to be connected to a second cover plate 34 of the vehicle.
  • the main body 11 includes a first mounting portion 111, a second mounting portion 112, a third mounting portion 113 and a fourth mounting portion 114.
  • the first mounting portion 111 and the second mounting portion 112 are respectively located at two ends of the main body 11 along the first direction X.
  • the first mounting portion 111 is used to connect with the first longitudinal beam 31 of the vehicle
  • the second mounting portion 112 is used to connect with the second longitudinal beam 31 of the vehicle.
  • the first longitudinal beam 31 is connected to the shock tower 38.
  • the first direction X is parallel to the length direction of the vehicle
  • the first longitudinal beam 31 includes a rocker beam of the lower body 3
  • the second longitudinal beam 36 includes a front longitudinal beam of the lower body 3.
  • the third mounting portion 113 is used to be connected to the adapter plate 39 connected to the shock tower 38.
  • the fourth mounting portion 114 is used to mount the subframe of the vehicle.
  • the interface 15 is disposed at one side of the main body 11 along the second direction Y, and the interface 15 is used to connect to the first cross beam 32 and the second cross beam 35 of the vehicle.
  • the second cross beam 35 is connected to the front panel 21 of the vehicle.
  • the torsion box 4 , the first cover plate 33 , the second cover plate 34 , the first longitudinal beam 31 and the first transverse beam 32 are used to form at least a part of the battery box 5 .
  • a concave portion 117 is provided on one side of the main body 11 facing the upper vehicle body 2.
  • a mounting hole 116 is provided on the bottom surface 117a of the concave portion. The mounting hole 116 is used to cooperate with a fastener to detachably connect the main body 11 to the upper vehicle body 2 of the vehicle.

Landscapes

  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种下车体、底盘以及车辆。下车体（3）包括第一横梁（32）、第一纵梁（31）、扭力盒（4）、第一盖板（33）以及第二盖板（34）。扭力盒（4）包括主体部（11）、第一连接板（12）和第二连接板（13），主体部（11）连接第一横梁（32）和第一纵梁（31），第一连接板（12）和第二连接板（13）间隔设置并连接于主体部（11）。第一盖板（33）连接于第一连接板（12），第二盖板（34）连接于第二连接板（13）。扭力盒（4）、第一盖板（33）以及第二盖板（34）用于形成电池箱体（5）的至少一部分，电池箱体（5）用于容纳电池单体（1）。

Description

下车体、底盘以及车辆 技术领域
本申请涉及车辆技术领域，并且更具体地，涉及一种下车体、底盘以及车辆。
背景技术
目前随着自动化、智能化发展迅速，新能源车辆越来越受到大众的喜爱与购买。如何提高车辆的续航能力，是车辆技术中的一个研究方向。
发明内容
本申请提供了一种下车体、底盘以及车辆，其能降低车辆的成本。
第一方面，本申请实施例提供了一种车辆的下车体。下车体包括第一横梁、第一纵梁、扭力盒、第一盖板以及第二盖板。扭力盒包括主体部、第一连接板和第二连接板，主体部连接第一横梁和第一纵梁，第一连接板和第二连接板间隔设置并连接于主体部。第一盖板连接于第一连接板，第二盖板连接于第二连接板。扭力盒、第一盖板以及第二盖板用于形成电池箱体的至少一部分，电池箱体用于容纳电池单体。
通过在扭力盒上设置第一连接板和第二连接板，可以将扭力盒与车辆的第一盖板和第二盖板连接，使扭力盒与电池箱体集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，主体部的一端设有第一安装部，第一安装部包括第一安装板和与第一连接板连接的第二安装板，第二安装板与第一安装板之间呈预设夹角。第一安装板和第二安装板中的至少一者用于与第一纵梁连接。
在车辆出现碰撞等事故时，扭力盒可以凭借主体部与第一纵梁的连接关系，将碰撞力有效地分散，从而减小下车体的形变，降低电池单体受压的风险，提高可靠性。
在装配第一纵梁和扭力盒时，第一安装板和第二安装板均可用于与第一纵梁贴合，这样可以有助于实现第一安装部与第一纵梁之间的定位，简化装配工艺。
在一些实施例中，第二安装板垂直于第一安装板。
第一纵梁和第一安装部之间可形成L形的接触面，这样有助于简化对第一纵梁的形状的要求，提高第一纵梁和第一安装部之间的连接强度。
在一些实施例中，第一安装板位于主体部沿第一方向的一端。第一连接板和第二安装板分别连接于第一安装板沿第二方向相对的两个表面。第二安装板垂直于第三方向。第一方向、第二方向和第三方向两两垂直。
第二安装板和第一连接板可以分别从第一安装板的两侧连接到第一安装板，可降低第二安装板和第一连接板干涉的风险。
在一些实施例中，主体部还设有第二安装部，下车体还包括第二纵梁和连接件。第二安装部包括第三安装板、第四安装板和第五安装板。第三安装板和第五安装板分别连接于第四安装板的两端，且分别向第四安装板相反的两侧延伸。第三安装板和第五安装板用于与连接件连接，以使第三安装板、第四安装板以及连接件包围第二纵梁。
在车辆出现碰撞等事故时，扭力盒可以在第一纵梁和第二纵梁之间传递、分散应力，从而减小下车体的形变，降低电池单体受压的风险，提高可靠性。
第三安装板和第四安装板之间呈一定角度，在装配第二纵梁和扭力盒时，第三安装板和第四安装板均可用于与第二纵梁贴合，这样可以有助于实现第二安装部与第二纵梁之间的定位，简化装配工艺。第三安装板和第五安装板可以为连接件提供安装点，以使连接件能够与第二安装部共同包裹扣紧第二纵梁，提高扭力盒与第二纵梁之间的连接强度。
在一些实施例中，下车体还包括减震塔。第三安装板用于设置到第二纵梁和减震塔之间并连接于减震塔和第二纵梁。在第二纵梁受到冲击时，碰撞力可以通过第三安装板传递到减震塔，从而将碰撞力有效地分散，减小下车体的形变，降低电池单体受压的风险，提高可靠性。
将第三安装板插入到第二纵梁和减震塔之间，可以使第三安装板能够同时与第二纵梁和减震塔连接，有助于简化装配工艺。
在一些实施例中，下车体还包括连接于减震塔的转接板。主体部还包括第三安装部，第三安装部用于与转接板相连接。通过设置第三安装部，可以为转接板提供连接点，从而使减震塔通过转接板连接到第三安装部，提高减震塔与扭力盒的连接强度。
在一些实施例中，第二安装部连接于第三安装部。车辆出现碰撞时，碰撞力可以在第二安装部和第三安装部之间传递、分散，从而降低扭力盒变形的风险。
在一些实施例中，第一安装部和第二安装部分别位于主体部的两端。将第一安装部和第二安装部设置于主体部的两端，在第一纵梁或第二纵梁受到冲击时，主体部不易扭转变形，从而可以提高扭力盒的抗变形能力。
在一些实施例中，第一纵梁用于连接第一盖板和第二盖板，并形成电池箱体的一部分。将第一纵梁与电池箱体集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，扭力盒还包括连接于主体部的接口，接口至少用于与第一横梁连接。在车辆出现碰撞等事故时，扭力盒可以凭借接口与第一横梁的连接关系，将碰撞力有效地分散，从而减小下车体的形变，降低电池单体受压的风险，提高可靠性。
在一些实施例中，第一横梁用于连接第一盖板和第二盖板，并形成电池箱体的一部分。将第一横梁与电池箱体集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，下车体还包括第二横梁。接口还用于与第二横梁连接，第二横梁用于连接车辆的前围板。在车辆发生正面碰撞时，扭力盒能够凭借其与第一纵梁、第一横梁以及第二横梁的连接关系，将前围板上的碰撞力有效分散并传递到下车体的后部，从而减小了下车体前部的变形，保护车辆内的驾驶员和乘客的安全。
在一些实施例中，主体部设有安装孔，安装孔用于与紧固件配合，以将主体部与车辆的上车体可拆卸连接。
扭力盒通过设置安装孔，可实现扭力盒与上车体的可拆卸连接，进而实现扭力盒与上车体的分离解耦和连接，有助于实现扭力盒的维护和更换。
在一些实施例中，主体部面向上车体的一侧设有凹部。凹部的底面设有安装孔。
在装配扭力盒和上车体时，凹部可以起到定位作用，有助于使安装孔与上车体的配合结构相对，以提高装配效率。
在一些实施例中，主体部具有支撑区域，支撑区域用于与车辆的上车体夹持密封部件。支撑区域的两侧均设有安装孔。
主体部的支撑区域可以支撑密封部件，以实现扭力盒与上车体之间的密封，减少进入乘员舱的杂质，改善乘客体验，提高车辆的可靠性。支撑区域的两侧均设有安装孔，即密封部件的两侧均设有扭力盒与上车体的连接位点，这样可以使密封部件能够被压紧，提高车内的气密性和水密性。
在一些实施例中，主体部还设有第四安装部，第四安装部用于安装车辆的副车架。将副车架的安装点集成到扭力盒上，可减少整车产品的零件数量，减轻整车重量，降低整车开发成本。
第二方面，本申请实施例提供了一种车辆的底盘，包括电池单体以及第一方面任一实施例提供的下车体。电池单体容纳于电池箱体内且位于第一盖板和第二盖板之间。
在一些实施例中，电池单体粘接于第一盖板，可以提高第一盖板整体的刚度，在车辆出现碰撞时减小第一盖板的变形。
在一些实施例中，第一盖板为车辆的地板。将电池单体安装在地板上，使得地板可同时作为电池的盖板使用，从而减少传统电池的部分冗余结构，提高车辆的续航里程，达到减重、降本的效果。
第三方面，本申请实施例提供了一种车辆，包括第一方面任一实施例提供的下车体。
第四方面，本申请实施例提供了一种车辆，包括第二方面任一实施例提供的底盘。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅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，还可以根据附图获得其他的附图。
图1为本申请一些实施例提供的车辆的爆炸示意图；
图2为本申请一些实施例提供的车辆的局部示意图；
图3为本申请一些实施例提供的扭力盒的一结构示意图；
图4为图3所示的扭力盒在另一角度下的结构示意图；
图5为图3所示的扭力盒在又一角度下的结构示意图；
图6为图3所示扭力盒的俯视示意图；
图7为图3所示扭力盒的在再一角度下的结构示意图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
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。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。
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”、“附接”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，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的实施例中，相同的附图标记表示相同的部件，并且为了简洁，在不同实施例中，省略对相同部件的详细说明。应理解，附图示出的本申请实施例中的各种部件的厚度、长宽等尺寸，以及集成装置的整体厚度、长宽等尺寸仅为示例性说明，而不应对本申请构成任何限定。
本申请中出现的“多个”指的是两个以上(包括两个)。
在本申请的实施例中，“平行”不仅包括绝对平行的情况，也包括了工程上常规认知的大致平行的情况；同时，“垂直”也不仅包括绝对垂直的情况，还包括工程上常规认知的大致垂直的情况。示例性地，两个方向的夹角为80°-90°，可认为两个 方向垂直；两个方向的夹角为0°-10°，可认为两个方向平行。
在相关技术中，车辆的扭力盒通常连接车辆的横梁和纵梁，以实现横梁和纵梁之间的相对固定，改善横梁和纵梁之间传力的连续性。车辆的电池单体通常先集成在电池包的电池箱体内，再随着电池箱体安装在车辆的车体上。
扭力盒与电池箱体彼此独立，两者并无关联，这造成车辆的零部件数量较多，车重较大，影响车辆的续航里程。
鉴于此，本申请实施例提供了一种技术方案，其将扭力盒与电池箱体集成在一起，减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
本申请实施例描述的技术方案适用于车辆。车辆可以是新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。
图1为本申请一些实施例提供的车辆的爆炸示意图。
如图1所示，车辆可包括电池。电池不仅仅可以作为车辆的操作电源，还可以作为车辆的驱动电源，代替或部分地代替燃油或天然气为车辆提供驱动动力。
在一些实施例中，电池包括多个电池单体1。
电池单体1可以包括锂离子电池单体、锂硫电池单体、钠锂离子电池单体、钠离子电池单体或镁离子电池单体等，本申请实施例对此并不限定。电池单体1可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。
在一些实施例中，车辆包括车体，多个电池单体1可安装于车体。
在一些实施例中，车体包括上车体2和连接于上车体2的下车体3。示例性地，下车体3可拆卸地连接于上车体2。
在一些实施例中，多个电池单体1安装于下车体3。
在一些实施例中，车体包括扭力盒4。示例性地，下车体3包括扭力盒4。
在一些实施例中，下车体3包括第一纵梁31和第一横梁32，扭力盒4连接第一纵梁31和第一横梁32。
在一些实施例中，第一纵梁31沿车辆的长度方向延伸。示例性地，第一纵梁31可为下车体3的门槛梁。
在一些实施例中，第一横梁32沿车辆的宽度方向延伸。
图2为本申请一些实施例提供的车辆的局部示意图；图3为本申请一些实施例提供的扭力盒的一结构示意图；图4为图3所示的扭力盒在另一角度下的结构示意图；图5为图3所示的扭力盒在又一角度下的结构示意图。
请参照图2至图5，本申请实施例的下车体3包括扭力盒4、第一纵梁31、第一横梁32、第一盖板33以及第二盖板34。
扭力盒4包括主体部11、第一连接板12和第二连接板13，主体部11连接第一纵梁31和第一横梁32。第一连接板12和第二连接板13间隔设置并连接于主体部11。第一盖板33连接于第一连接板12；第二盖板34连接于第二连接板13。扭力盒4、第一盖板33以及第二盖板34用于形成电池箱体5的至少一部分，电池箱体5用于容纳电池单体1。
第一连接板12可以为一个，也可以为多个。示例性地，第一连接板12为一个。 第二连接板13可以为一个，也可以为多个。示例性地，第二连接板13为一个。
示例性地，第一连接板12和第二连接板13凸出于主体部11，两者可形成双层法兰结构。
本申请实施例不限制第一连接板12与第一盖板33的连接方式，例如，第一连接板12可通过焊接、粘接、紧固件连接或其它方式连接到第一盖板33。
本申请实施例不限制第二连接板13与第二盖板34的连接方式，例如，第二连接板13可通过焊接、粘接、紧固件连接或其它方式连接到第二盖板34。
电池箱体5可用于容纳多个电池单体1。电池箱体5可以从外侧保护电池单体1，提高电池单体1的可靠性。
示例性地，电池箱体5具有容纳腔51，多个电池单体1可容纳于容纳腔51内。扭力盒4、第一盖板33、第二盖板34以及车辆的其它部件用于限定出容纳腔51。
在本申请实施例中，通过在扭力盒4上设置第一连接板12和第二连接板13，可以将扭力盒4与车辆的第一盖板33和第二盖板34连接，使扭力盒4与电池箱体5集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，第一连接板12和第二连接板13沿车辆的高度方向设置。示例性地，在车辆中，第一连接板12可位于第二连接板13的上方；对应地，第一盖板33可为上盖板，第二盖板34可为下盖板。
在一些实施例中，第一连接板12和第一盖板33可通过旋转攻丝铆接(FDS)的方式连接。
在一些实施例中，第一连接板12和第一盖板33通过胶体粘接。胶体可以封堵第一连接板12和第一盖板33之间的缝隙，提高电池箱体5的气密性和水密性。
示例性地，胶体的至少部分设置于第一连接板12和第一盖板33之间。
示例性地，第一连接板12和第一盖板33通过结构胶粘接。
在一些实施例中，第二连接板13和第二盖板34可通过旋转攻丝铆接(FDS)的方式连接。
在一些实施例中，第二连接板13和第二盖板34通过胶体粘接。胶体可以封堵第二连接板13和第二盖板34之间的缝隙，提高电池箱体5的气密性和水密性。
示例性地，胶体的至少部分设置于第二连接板13和第二盖板34之间。
示例性地，第二连接板13和第二盖板34通过结构胶粘接。
在一些实施例中，第一连接板12为平板状。
在一些实施例中，第二连接板13为平板状。
在一些实施例中，在车辆中，第一盖板33从第一连接板12的背离第二连接板13的一侧搭接在第一连接板12上，第二盖板34从第二连接板13的背离第一连接板12的一侧搭接在第二连接板13上。
在一些实施例中，扭力盒4包括加强筋板14，加强筋板14连接于第一连接板12和第二连接板13之间。
在一些实施例中，主体部11的一端设有第一安装部111，第一安装部111用于 与车辆的第一纵梁31连接。
第一纵梁31可为沿车辆的长度方向延伸的梁。本申请不限制第一纵梁31的具体位置，示例性地，第一纵梁31可以为下车体3的门槛梁、前纵梁或后纵梁。
在车辆出现碰撞等事故时，扭力盒4可以凭借主体部11与第一纵梁31的连接关系，将碰撞力有效地分散，从而减小下车体3的形变，降低电池单体1受压的风险，提高可靠性。
在一些实施例中，第一纵梁31用于连接第一盖板33和第二盖板34，并形成电池箱体5的一部分。
本申请实施例将第一纵梁31与电池箱体5集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，车辆包括第一横梁32，扭力盒4还用于连接第一横梁32。
在一些实施例中，车辆包括两个第一纵梁31和两个第一横梁32。
在一些实施例中，第一纵梁31沿第一方向X延伸，第一横梁32沿第二方向Y延伸，第一方向X垂直于第二方向Y。示例性地，第一方向X平行于车辆的长度方向，第二方向Y平行于车辆的宽度方向。
两个第一纵梁31可沿第二方向Y间隔设置，两个第一横梁32可沿第一方向X间隔设置。
在一些实施例中，车辆可包括四个扭力盒4，各第一横梁32分别通过两个扭力盒4连接于两个第一纵梁31。扭力盒4可实现第一横梁32和第一纵梁31之间的相对固定，改善第一横梁32和第一纵梁31之间传力的连续性。
在一些实施例中，第一盖板33连接于两个第一纵梁31、两个第一横梁32和四个扭力盒4，第二盖板34连接于两个第一纵梁31、两个第一横梁32和四个扭力盒4。两个第一纵梁31、两个第一横梁32和四个扭力盒4围合形成用于容纳电池单体1的容纳腔51。
在一些实施例中，靠近车头的两个扭力盒4可称之为前扭力盒，靠近车尾的两个扭力盒4可称之为后扭力盒。
在一些实施例中，第一纵梁31可为下车体3的门槛梁。
在一些实施例中，第一安装部111包括第一安装板111a和与第一连接板12连接的第二安装板111b，第二安装板111b与第一安装板111a之间呈预设夹角。第一安装板111a和第二安装板111b中的至少一者用于与第一纵梁31连接。
第二安装板111b与第一安装板111a相交设置。示例性地，预设夹角为α，0°＜α≤90°。
在本申请实施例中，可以是第一安装板111a与第一纵梁31连接，也可以是第二安装板111b与第一纵梁31连接，还可以是第一安装板111a和第二安装板111b同时与第一纵梁31连接。
在装配第一纵梁31和扭力盒4时，第一安装板111a和第二安装板111b均可用于与第一纵梁31贴合，这样可以有助于实现第一安装部111与第一纵梁31之间的定位，简化装配工艺。
在一些实施例中，第一安装板111a与第一纵梁31贴合并连接，第二安装板111b与第一纵梁31贴合。第二安装板111b起到定位作用，而第一安装板111a起到固定连接的作用。
示例性地，第一安装板111a通过紧固件(例如螺栓)连接于第一纵梁31。
示例性地，第一安装板111a设有供螺栓穿过的孔，而第二安装板111b未设置孔。
在一些实施例中，第二安装板111b垂直于第一安装板111a。第一纵梁31和第一安装部111之间可形成L形的接触面，这样有助于简化对第一纵梁31的形状的要求，提高第一纵梁31和第一安装部111之间的连接强度。
在一些实施例中，第一安装板111a位于主体部11沿第一方向X的一端。第一连接板12和第二安装板111b分别连接于第一安装板111a沿第二方向Y相对的两个表面。第二安装板111b垂直于第三方向Z。第一方向X、第二方向Y和第三方向Z两两垂直。
示例性地，第三方向Z可平行于车辆的高度方向。
示例性地，第一安装板111a大体为平板状且垂直于第二方向Y。
示例性地，第二安装板111b大体为平板状且垂直于第三方向Z。
第二安装板111b和第一连接板12可以分别从第一安装板111a的两侧连接到第一安装板111a，可降低第二安装板111b和第一连接板12干涉的风险。
在一些实施例中，主体部11还设有第二安装部112，下车体3还包括第二纵梁36，第二安装部112至少用于与第二纵梁36连接。
本申请实施例不限制第二纵梁36的位置。在一些示例中，第一纵梁31为门槛梁，第二纵梁36为前纵梁，对应地，扭力盒4为前扭力盒；在另一些示例中，第一纵梁31为门槛梁，第二纵梁36为后纵梁，对应地，扭力盒4为后扭力盒；在又一些示例中，第一纵梁31为前纵梁，第二纵梁36为门槛梁。
在车辆出现碰撞等事故时，扭力盒4可以在第一纵梁31和第二纵梁36之间传递、分散应力，从而减小下车体的形变，降低电池单体1受压的风险，提高可靠性。
在一些实施例中，第一安装部111和第二安装部112分别位于主体部11的两端。示例性地，第一安装部111和第二安装部112分别位于主体部11沿第一方向X的两端。
将第一安装部111和第二安装部112设置于主体部11的两端，在第一纵梁31或第二纵梁36受到冲击时，主体部11不易扭转变形，从而可以提高扭力盒4的抗变形能力。
在一些实施例中，扭力盒4为前扭力盒，第一纵梁31为门槛梁，第二纵梁36为前纵梁。扭力盒4可以将车辆的前舱连接到电池箱体5。
当车辆发生正面碰撞时，扭力盒4能够凭借其与第一纵梁31和第二纵梁36的连接关系，将碰撞力有效分散并传递到下车体的后部，从而减小了下车体前部的变形，保护车辆内的驾驶员和乘客的安全。
在一些实施例中，下车体3包括第二纵梁36和连接件37。
在一些实施例中，第二安装部112包括第三安装板112a、第四安装板112b和第五安装板112c。第三安装板112a和第五安装板112c分别连接于第四安装板112b的两端，且分别向第四安装板112b相反的两侧延伸。第三安装板112a和第五安装板112c用于与连接件37连接，以使第三安装板112a、第四安装板112b以及连接件37包围第二纵梁36。
第三安装板112a和第四安装板112b之间呈一定角度，在装配第二纵梁36和扭力盒4时，第三安装板112a和第四安装板112b均可用于与第二纵梁36贴合，这样可以有助于实现第二安装部112与第二纵梁36之间的定位，简化装配工艺。第三安装板112a和第五安装板112c可以为连接件37提供安装点，以使连接件37能够与第二安装部112共同包裹扣紧第二纵梁36，提高扭力盒4与第二纵梁36之间的连接强度。
在一些实施例中，第三安装板112a垂直于第四安装板112b。在一些实施例中，第五安装板112c垂直于第四安装板112b。
在一些实施例中，第四安装板112b垂直于第三方向Z。
在一些实施例中，第三安装板112a和第五安装板112c上均设有供螺栓穿过的孔。
在一些实施例中，下车体3还包括减震塔38。
在一些实施例中，第二安装部112还用于将减震塔38连接到第二纵梁36。
在第二纵梁36受到冲击时，碰撞力可以通过第二安装部112传递到减震塔38，从而将碰撞力有效地分散，减小下车体的形变，降低电池单体1受压的风险，提高可靠性。
在一些实施例中，第二安装部112包括第三安装板112a，第三安装板112a用于设置到第二纵梁36和减震塔38之间并连接于减震塔38和第二纵梁36。
将第三安装板112a插入到第二纵梁36和减震塔38之间，可以使第三安装板112a能够同时与第二纵梁36和减震塔38连接，有助于简化装配工艺。
在一些实施例中，螺栓穿过减震塔38和第三安装板112a并连接到第二纵梁36上。
在一些实施例中，下车体3还包括连接于减震塔38的转接板39。
在一些实施例中，主体部11还包括第三安装部113，第三安装部113用于与转接板39相连接。
通过设置第三安装部113，可以为转接板39提供连接点，从而使减震塔38通过转接板39连接到第三安装部113，提高减震塔38与扭力盒4的连接强度。
在一些实施例中，主体部11在沿第三方向Z的一侧设有支撑板115，第三安装部113包括相对于支撑板115弯折的翻边结构。
在一些实施例中，第二安装部112连接于第三安装部113。在车辆出现碰撞时，碰撞力可以在第二安装部112和第三安装部113之间传递、分散，从而降低扭力盒4变形的风险。
在一些实施例中，第三安装部113直接连接于第三安装板112a。
在一些实施例中，扭力盒4还包括连接于主体部11的接口15，接口15至少用 于与第一横梁32连接。
在车辆出现碰撞等事故时，扭力盒4可以凭借接口15与第一横梁32的连接关系，将碰撞力有效地分散，从而减小下车体3的形变，降低电池单体1受压的风险，提高可靠性。
在一些实施例中，第一横梁32用于连接第一盖板33和第二盖板34，并形成电池箱体5的一部分。
本申请实施例将第一横梁32与电池箱体5集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。
在一些实施例中，接口15为凸出于主体部11的法兰结构。
在一些实施例中，接口15位于主体部11沿第二方向Y的一侧。
在一些实施例中，接口15和第一横梁32通过旋转攻丝铆接(FDS)以及焊接相连。
在一些实施例中，下车体3还包括第二横梁35。
在一些实施例中接口15还用于与第二横梁35连接，第二横梁35用于连接车辆的前围板21。
在车辆发生正面碰撞时，扭力盒4能够凭借其与第一纵梁31、第一横梁32以及第二横梁35的连接关系，将前围板21上的碰撞力有效分散并传递到下车体的后部，从而减小了下车体前部的变形，保护车辆内的驾驶员和乘客的安全。
在一些实施例中，接口15和第二横梁35通过旋转攻丝铆接(FDS)以及焊接相连。
在一些实施例中，在车辆中，第二横梁35位于第一横梁32的上侧。
在一些实施例红，第二横梁35连接于第一横梁32。
在一些实施例中，主体部11设有安装孔116，安装孔116用于与紧固件配合，以将主体部11与车辆的上车体2可拆卸连接。
示例性地，安装孔116可以是光孔，也可以是螺纹孔。安装孔116可以是通孔，也可以是盲孔。
示例性地，紧固件可包括螺栓、螺柱、螺钉和销钉中的至少一者。
安装孔116可以是一个，也可以是多个。
扭力盒4通过设置安装孔116，可实现扭力盒4与上车体2的可拆卸连接，进而实现扭力盒4与上车体2的分离解耦和连接，有助于实现扭力盒4的维护和更换。
在一些实施例中，主体部11面向上车体2的一侧设有凹部117。凹部的底面117a设有安装孔116。
凹部117可为一个，也可以为多个。在一些示例中，凹部117为多个，至少一个凹部的底面117a设有安装孔116。
在装配扭力盒4和上车体2时，凹部117可以起到定位作用，有助于使安装孔116与上车体2的配合结构相对，以提高装配效率。
在一些实施例中，凹部的底面117a垂直于车辆的高度方向。在装配时，上车体2可以通过沿高度方向移动与凹部的底面117a相抵，这样可以简化装配工艺。
图6为图3所示扭力盒的俯视示意图。
如图1和图6所示，主体部11具有支撑区域118，支撑区域118用于与车辆的上车体2夹持密封部件6。支撑区域118的两侧均设有安装孔116。
示例性地，支撑板115具有支撑区域118。
示例性地，密封部件6可通过压缩变形来实现密封。本申请实施例不限制密封部件6的材质；示例性地，密封部件6可由弹性可压缩的材料制成，例如橡胶、泡棉等。
主体部11的支撑区域118可以支撑密封部件6，以实现扭力盒4与上车体2之间的密封，减少进入乘员舱的杂质，改善乘客体验，提高车辆的可靠性。支撑区域118的两侧均设有安装孔116，即密封部件6的两侧均设有扭力盒4与上车体2的连接位点，这样可以使密封部件6能够被压紧，提高车内的气密性和水密性。
图7为图3所示扭力盒的在再一角度下的结构示意图。
如图7所示，在一些实施例中，主体部11还设有第四安装部114，第四安装部114用于安装车辆的副车架。
本申请实施例将副车架的安装点集成到扭力盒4上，可减少整车产品的零件数量，减轻整车重量，降低整车开发成本。
在一些实施例中，第四安装部114设于主体部11的远离第三安装部113的一侧。可选地，在车辆中，第四安装部114设于主体部11朝向地面的一侧。
在一些实施例中，副车架可通过螺栓连接到第四安装部114。
请重新参照图1和图2，本申请实施例还提供了一种底盘7，其包括以及前述任一实施例的下车体3。电池单体1容纳于电池箱体5内且位于第一盖板33和第二盖板34之间。
电池单体1可为能够独立实现充放电的最小单元。电池单体1可以包括锂离子二次电池单体、锂硫电池单体、钠锂离子电池单体、钠离子电池单体或镁离子电池单体等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
本申请实施例可利用底盘7的扭力盒4、第一盖板33和第二盖板34等结构来构件与电池箱体5集成在一起，从而减少零部件数量，节省空间，提高结构效率，降低车重，增加续航里程。换言之，本申请实施例将电池单体1集成到底盘7上，实现CTC(Cell to Chassis)电池底盘一体化。
在一些实施例中，下车体3与上车体2可拆卸连接。上车体2和下车体3可分离解耦和连接，进而实现上车体2和下车体3的独立开发，使上车体2和下车体3可以根据需求更换，缩短研发周期，降低成本。
一个下车体3可匹配不同造型的上车体2，满足用户对造型多样化的需求。
在一些实施例中，底盘7还可包括驱动系统和底盘系统，底盘系统包括传动系统、行驶系统、转向系统和制动系统。驱动系统可包括电机。
本申请实施例将电池系统、驱动系统以及底盘系统集成在一起，减少零部件数 量，节省空间，提高结构效率，并且大幅度降低车重，增加电池续航里程。
本申请实施例的底盘7具有高适配性，与整车匹配度提高，可快速柔性化批量生产。底盘7的高度集成化与模块化，可跨平台适配未来各级别、各类型的车型。同时，也正是因为高度的集成化与模块化，更好地简化零件数量及生产步骤，在降低成本的同时提升电池容量和续航里程。
通过设置独立的下车体3，可以将完整的底盘系统、电池系统和驱动系统集成在下车体3上，从而使整个底盘7可以独立于上车体2设计和运行，实现整车驱动部分和乘员舱实现相互独立开发和装配。
在一些实施例中，车辆还包括安装于上车体2的整车内饰、人机交互系统和娱乐系统。本申请实施例可时整车内饰、人机交互系统和娱乐系统独立于底盘7单独进行开发。
在一些实施例中，电池单体1粘接于第一盖板33。
将电池单体1粘接于第一盖板33，还可以提高第一盖板33整体的刚度，在车辆出现碰撞时减小第一盖板33的变形。
在一些实施例中，第一盖板33为车辆的地板。
将电池单体1安装在地板上，使得地板可同时作为电池的盖板使用，从而减少传统电池的部分冗余结构，提高车辆的续航里程，达到减重、降本的效果。
本申请实施例还提供了一种车辆，其包括前述任一实施例提供的下车体3。
本申请实施例还提供了一种车辆，其包括前述任一实施例提供的底盘7。
在一些实施例中，车辆包括上车体2和密封部件6。上车体2连接于下车体3，密封部件6夹设于上车体2和下车体3之间。
密封部件6可具有防尘、防水、隔音、耐磨、维修便利等优点。
在一些实施例中，上车体2与下车体3可拆卸连接。示例性地，上车体2与下车体3通过螺栓可拆卸连接。
参照图2至图7，本申请实施例提供了一种扭力盒4，扭力盒4包括主体部11、第一连接板12和第二连接板13，第一连接板12和第二连接板13间隔设置并连接于主体部11。第一连接板12用于连接到车辆的第一盖板33，第二连接板13用于连接到车辆的第二盖板34，扭力盒4、第一盖板33以及第二盖板34用于形成电池箱体5的至少一部分。
参照图2至图7，本申请实施例提供了一种下车体3，下车体3包括第一纵梁31、第一横梁32、第一盖板33、第二盖板34、第二横梁35、第二纵梁36、减震塔38、转接板39以及扭力盒4。
扭力盒4包括主体部11、第一连接板12、第二连接板13和接口15。
第一连接板12和第二连接板13间隔设置并连接于主体部11。第一连接板12用于连接到车辆的第一盖板33，第二连接板13用于连接到车辆的第二盖板34。
主体部11包括第一安装部111、第二安装部112、第三安装部113和第四安装部114，第一安装部111和第二安装部112分别位于主体部11沿第一方向X的两端。第一安装部111用于与车辆的第一纵梁31连接，第二安装部112用于与车辆的第二纵 梁36以及减震塔38连接。可选地，第一方向X平行于车辆的长度方向，第一纵梁31包括下车体3的门槛梁，第二纵梁36包括下车体3的前纵梁。
第三安装部113用于与连接于减震塔38的转接板39相连接。第四安装部114用于安装车辆的副车架。
接口15设置于主体部11沿第二方向Y的一侧，且接口15用于连接于车辆的第一横梁32和第二横梁35。第二横梁35连接于车辆的前围板21。
扭力盒4、第一盖板33、第二盖板34、第一纵梁31以及第一横梁32用于形成电池箱体5的至少一部分。
主体部11面向上车体2的一侧设有凹部117。凹部的底面117a设有安装孔116。安装孔116用于与紧固件配合，以将主体部11与车辆的上车体2可拆卸连接。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
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，但这些修改或者替换，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 (21)

  1. 一种车辆的下车体，包括：
    第一横梁；
    第一纵梁；
    扭力盒，包括主体部、第一连接板和第二连接板，所述主体部连接所述第一横梁和所述第一纵梁，所述第一连接板和所述第二连接板间隔设置并连接于所述主体部；
    第一盖板，连接于所述第一连接板；以及
    第二盖板，连接于所述第二连接板，所述扭力盒、所述第一盖板以及所述第二盖板形成电池箱体的至少一部分，所述电池箱体用于容纳电池单体。
  2. 根据权利要求1所述的下车体，其中，所述主体部的一端设有第一安装部，所述第一安装部包括第一安装板和与所述第一连接板连接的第二安装板，所述第二安装板与所述第一安装板之间呈预设夹角；
    所述第一安装板和所述第二安装板中的至少一者用于与所述第一纵梁连接。
  3. 根据权利要求2所述的下车体，其中，所述第二安装板垂直于所述第一安装板。
  4. 根据权利要求2或3所述的下车体，其中，所述第一安装板位于所述主体部沿第一方向的一端；
    所述第一连接板和所述第二安装板分别连接于所述第一安装板沿第二方向相对的两个表面；
    所述第二安装板垂直于第三方向；
    所述第一方向、所述第二方向和所述第三方向两两垂直。
  5. 根据权利要求2-4任一项所述的下车体，其中，所述主体部还设有第二安装部，所述下车体还包括第二纵梁和连接件；
    所述第二安装部包括第三安装板、第四安装板和第五安装板；
    所述第三安装板和所述第五安装板分别连接于所述第四安装板的两端，且分别向所述第四安装板相反的两侧延伸；
    所述第三安装板和所述第五安装板用于与所述连接件连接，以使所述第三安装板、第四安装板以及所述连接件包围所述第二纵梁。
  6. 根据权利要求5所述的下车体，还包括减震塔；
    所述第三安装板用于设置到所述第二纵梁和所述减震塔之间并连接于所述减震塔和所述第二纵梁。
  7. 根据权利要求6所述的下车体，还包括连接于所述减震塔的转接板；
    所述主体部还包括第三安装部，所述第三安装部用于与所述转接板相连接。
  8. 根据权利要求7所述的下车体，其中，所述第二安装部连接于所述第三安装部。
  9. 根据权利要求5-8任一项所述的下车体，其中，所述第一安装部和所述第二安装部分别位于所述主体部的两端。
  10. 根据权利要求1-9任一项所述的下车体，其中，所述第一纵梁用于连接所述第一盖板和所述第二盖板，并形成所述电池箱体的一部分。
  11. 根据权利要求1-10任一项所述的下车体，其中，所述扭力盒还包括连接于所述主体部的接口，所述接口至少用于与所述第一横梁连接。
  12. 根据权利要求11所述的下车体，其中，所述第一横梁用于连接所述第一盖板和所述第二盖板，并形成所述电池箱体的一部分。
  13. 根据权利要求11或12所述的下车体，还包括第二横梁；
    所述接口还用于与所述第二横梁连接，所述第二横梁用于连接车辆的前围板。
  14. 根据权利要求1-13任一项所述的下车体，其中，所述主体部设有安装孔，所述安装孔用于与紧固件配合，以将所述主体部与车辆的上车体可拆卸连接。
  15. 根据权利要求14所述的下车体，其中，所述主体部面向所述上车体的一侧设有凹部；
    所述凹部的底面设有所述安装孔。
  16. 根据权利要求14或15所述的下车体，其中，所述主体部具有支撑区域，所述支撑区域用于与所述车辆的上车体夹持密封部件；
    所述支撑区域的两侧均设有所述安装孔。
  17. 根据权利要求1-16任一项所述的下车体，其中，所述主体部还设有第四安装部，所述第四安装部用于安装车辆的副车架。
  18. 一种车辆的底盘，包括：
    根据权利要求1-17任一项所述的下车体；
    电池单体，容纳于所述电池箱体内且位于所述第一盖板和所述第二盖板之间。
  19. 根据权利要求18所述的底盘，其中，所述电池单体粘接于所述第一盖板。
  20. 根据权利要求18或19所述的底盘，其中，所述第一盖板为所述车辆的地板。
  21. 一种车辆，包括根据权利要求1-17任一项所述的下车体或根据权利要求18-20任一项所述的底盘。
PCT/CN2023/090322 2023-04-24 2023-04-24 下车体、底盘以及车辆 WO2024221174A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3459828A1 (de) * 2017-09-21 2019-03-27 Audi Ag Vorrichtung zur übertragung von kräften im crashfall eines kraftfahrzeugs
CN214057209U (zh) * 2020-12-14 2021-08-27 长城汽车股份有限公司 电池包安装结构、车身地板总成及车辆
CN114633804A (zh) * 2022-03-12 2022-06-17 阿尔特汽车技术股份有限公司 一种电动汽车前扭力盒结构
CN115503829A (zh) * 2022-10-12 2022-12-23 阿尔特汽车技术股份有限公司 扭力盒、车架及汽车

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3459828A1 (de) * 2017-09-21 2019-03-27 Audi Ag Vorrichtung zur übertragung von kräften im crashfall eines kraftfahrzeugs
CN214057209U (zh) * 2020-12-14 2021-08-27 长城汽车股份有限公司 电池包安装结构、车身地板总成及车辆
CN114633804A (zh) * 2022-03-12 2022-06-17 阿尔特汽车技术股份有限公司 一种电动汽车前扭力盒结构
CN115503829A (zh) * 2022-10-12 2022-12-23 阿尔特汽车技术股份有限公司 扭力盒、车架及汽车

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