CN107554621B - Floor beam structure for vehicle - Google Patents
Floor beam structure for vehicle Download PDFInfo
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- CN107554621B CN107554621B CN201610503882.2A CN201610503882A CN107554621B CN 107554621 B CN107554621 B CN 107554621B CN 201610503882 A CN201610503882 A CN 201610503882A CN 107554621 B CN107554621 B CN 107554621B
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Abstract
The present invention provides a floor beam structure for a vehicle, including: a middle channel; the lower floor longitudinal beams are positioned on the left side and the right side of the middle channel; the floor cross beams are arranged on the left side and the right side of the middle channel, and the floor cross beam on each side is respectively connected with the floor lower longitudinal beam and the middle channel on the same side; the inclined connecting beams are arranged on the left side and the right side of the middle channel, the front end of each inclined connecting beam is connected with the lower longitudinal beam of the floor on the same side, and the rear end of each inclined connecting beam is connected with the floor cross beam and the middle channel on the same side. The floor beam structure for the vehicle has more force transmission paths, and the floor plate is prevented from being seriously deformed when the vehicle is impacted.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a floor beam structure for a vehicle.
Background
Vehicles in the related art, such as pure electric vehicles, have a relatively low floor structure, and the floor structure is similar to that of a conventional vehicle with an engine, so that a large battery arrangement space is not provided, and the cruising range of the vehicle is affected. Meanwhile, batteries of a common pure electric automobile are arranged below a floor, so that force transmission channels are few and the floor and beams on the floor are seriously deformed during vehicle collision, such as head-on collision and side collision, so that the installation space of the batteries is excessively extruded, and the batteries are easily detonated to cause fire. In addition, the strength of the traditional floor is weak, the traditional floor cannot absorb collision energy well during collision, and no mounting point is provided for a functional module and a power assembly of the new energy vehicle in the engine room, so that the design requirement of the new energy vehicle cannot be met.
Disclosure of Invention
In view of the above, the present invention is directed to a floor beam structure for a vehicle, which has more force transmission paths to prevent severe deformation of a floor when the vehicle is impacted.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a floor beam structure for a vehicle, comprising: a middle channel; the lower floor longitudinal beams are positioned on the left side and the right side of the middle channel; the floor cross beams are arranged on the left side and the right side of the middle channel, and the floor cross beam on each side is respectively connected with the floor lower longitudinal beam and the middle channel on the same side; the inclined connecting beams are arranged on the left side and the right side of the middle channel, the front end of each inclined connecting beam is connected with the lower longitudinal beam of the floor on the same side, and the rear end of each inclined connecting beam is connected with the floor cross beam and the middle channel on the same side.
Further, the floor beam structure further includes: the doorsill edge beams are positioned on the left side and the right side of the middle channel; and the torsion boxes are positioned at the left side and the right side of the middle channel, and the torsion box at each side is respectively connected with the doorsill edge beam, the floor lower longitudinal beam and the floor cross beam at the same side.
Furthermore, the front end of the inclined connecting beam is fixed with the front end of the floor lower longitudinal beam on the same side.
Furthermore, the rear end of the inclined connecting beam is fixed with one end, close to the middle channel, of the floor beam on the same side.
Furthermore, the outer side of the torque box is fixed to the doorsill edge beam on the same side, and the inner side of the torque box is fixed to the floor lower longitudinal beam and the floor cross beam on the same side.
Further, the front part of the inner edge of the torsion box abuts against the front end of the inclined connecting beam on the same side.
Further, the inclined connecting beam, the floor side sill and the floor cross beam on the same side form a general triangle.
Further, the floor beam structure further includes: and a plurality of center tunnel transverse reinforcing structures which are arranged in the center tunnel at intervals along the front-rear direction, wherein the center tunnel transverse reinforcing rib positioned at the forefront is distributed on the same straight line with the floor cross beams on both sides.
Further, the floor beam structure further includes: the floor upper longitudinal beam is arranged on the upper surface of the floor and arranged at a left-right interval.
Further, the floor beam structure further includes: the front seat cross beam is positioned on the left side and the right side of the middle channel and is respectively connected with the middle channel and the doorsill edge beam on the same side, and the rear end of the floor upper longitudinal beam is connected with the front seat cross beam on the same side; and the rear seat cross beams are positioned on the left side and the right side of the middle channel and are respectively connected with the middle channel and the threshold side beams on the same side.
Compared with the prior art, the floor beam structure has the following advantages:
(1) according to the floor beam structure, the floor lower longitudinal beams, the floor cross beams and the inclined connecting beams are fixedly connected together, so that the strength of the floor beam structure and the floor assembly is improved, the space below the floor is larger, more batteries can be accommodated, and the cruising ability of a vehicle is effectively improved.
(2) The floor beam structure can disperse impact force applied to a vehicle during collision by fixedly connecting the lower floor longitudinal beam, the floor cross beam and the inclined connecting beam together, and ensures the safety of a cab and a battery pack.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a flooring assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a flooring assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a floor beam structure according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a flooring assembly according to an embodiment of the present invention;
FIG. 5 is a partial cross-sectional view of a flooring assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of a flooring assembly according to an embodiment of the present invention;
FIG. 7 is a schematic view of a center channel assembly according to an embodiment of the present invention;
FIG. 8 is a schematic illustration of a center channel longitudinal reinforcement structure according to an embodiment of the present invention;
FIG. 9 is a schematic illustration of a powertrain according to an embodiment of the present invention;
FIG. 10 is a schematic view of a battery according to an embodiment of the present invention;
FIG. 11 is a schematic view of a nacelle mounting frame structure according to an embodiment of the invention;
FIG. 12 is a schematic view of a connecting stringer according to an embodiment of the present invention;
FIG. 13 is a schematic view of a heater in cooperation with a heater mounting bracket according to an embodiment of the present invention;
FIG. 14 is a schematic view of a heater according to an embodiment of the present invention;
FIG. 15 is a schematic view of one orientation of the heater mounting bracket engaging a cross member in accordance with an embodiment of the present invention;
FIG. 16 is a schematic view of another orientation of a heater mounting bracket engaging a cross member in accordance with an embodiment of the present invention;
FIG. 17 is a schematic view of a heater fixture according to an embodiment of the invention;
FIG. 18 is a schematic view of a beam support according to one embodiment of the present invention;
FIG. 19 is a schematic view of a beam support according to one embodiment of the present invention;
FIG. 20 is a schematic view of a cross beam bracket according to another embodiment of the present invention;
FIG. 21 is a schematic view of a cross beam bracket according to another embodiment of the present invention;
FIG. 22 is a schematic view of a cross beam bracket according to yet another embodiment of the present invention;
FIG. 23 is a schematic view of a cross beam bracket according to yet another embodiment of the present invention;
description of reference numerals:
a floor panel assembly (1000) is provided,
the power assembly (900) is provided with a power assembly,
a nacelle mounting frame structure 400, a cross beam 410, a front cross beam 411, a rear cross beam 412, connecting longitudinal beams 420, a middle connecting longitudinal beam 421, side connecting longitudinal beams 422, connecting longitudinal beam flanges 420a, connecting longitudinal beam reinforcing structures 420b, a nacelle longitudinal beam 430, a cross beam recess 401, connecting longitudinal beam lightening holes 402, avoidance notches 403,
charger and distribution box 510, motor controller 520, battery 530, charging socket 540, socket body 541, socket fixing arm 542,
a floor panel assembly 800, a floor panel 810, a floor projection 811, a left edge floor panel 812, a right edge floor panel 813, a first connecting floor panel 814, a second connecting floor panel 815, a battery mounting space 801,
a floor beam structure 700, a floor side sill 710, an inclined connecting beam 720, a rocker side beam 730, a torsion box 740, a floor cross beam 760, a front seat cross beam 770, a rear seat cross beam 780, a first inclined wall 711, a second inclined wall 712,
a center channel assembly 600, a center channel 610, a center channel transverse stiffener 620, a center channel longitudinal stiffener 630, longitudinal buttresses 631, transverse buttresses 632,
a heater 300, a heater body 310, a heater supporter 320, a heater supporter bottom wall 321, a heater supporter vertical wall 322,
a heater mounting bracket 200, a heater mounting plate 210, a heater mounting plate reinforcing structure 211, a heater reinforcing plate 220, a heater mounting plate lightening hole 201,
a beam bracket 130, a bracket body 131, a bracket body top wall 131a, a bracket body first side wall 131b, a bracket body second side wall 131c, a side wall turndown 131d, a top wall turndown 131e, a side wall turndown 131f,
a beam bracket 140, a bracket body 141, a bracket body top wall 141a, a bracket body first side wall 141b, a bracket body second side wall 141c, a side wall flange 141d, a bracket lower connecting plate 142, a transverse plate 142a, a vertical plate 142b,
a beam bracket 150, a first vertical wall 151, a first vertical wall side flange 151a, a first vertical wall reinforcing rib 151b, a second vertical wall 152, a second vertical wall side flange 152a, and a top connecting wall 153.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
A floor assembly 1000 for a vehicle according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 23.
As shown in fig. 1 to 3, a floor assembly 1000 for a vehicle according to an embodiment of the present invention may include a power pack 900 and a floor assembly 800, wherein the power pack 900 in turn includes a nacelle-mounting frame structure 400 and a plurality of functional modules.
As shown in fig. 9 to 12, the nacelle mounting frame structure 400 includes a cross member 410 and a plurality of connecting longitudinal members 420, the cross member 410 includes a front cross member 411 and longitudinal and transverse members 410, the front cross member 411 and a rear cross member 412 are arranged at a distance from each other in the front-rear direction, both ends of each of the front cross member 411 and the rear cross member 412 are fixed to the nacelle longitudinal members 430 on the left and right sides through cross member brackets, respectively, and the front end and the rear end of each connecting longitudinal member 420 are fixed to the upper surfaces of the front cross member 411 and the rear cross member 412, respectively.
As shown in fig. 6, the floor panel assembly 800 includes a floor panel 810, a floor side sill 710, a floor cross member 760, and inclined connecting members 720, wherein the floor panel 810 is provided with a center tunnel 610, the floor side sills 710 are provided on a lower surface of the floor panel 810 and spaced left and right, and the floor side sills 710 are respectively connected to the nacelle side sills 430 on the same side.
Thus, by coupling power assembly 900 and floor assembly 800 together to form floor assembly 1000, floor assembly 1000 has an overall higher strength and better crash performance.
The inclined connecting beams 720 are disposed on the lower surface of the floor panel 810 and located on the left and right sides of the center tunnel 610, the front end of each inclined connecting beam 720 is connected to the floor side sill 710 on the same side and the rear end is connected to the floor cross member 760 and the center tunnel 610 on the same side.
According to the floor assembly 1000 for the vehicle, which is disclosed by the embodiment of the invention, the arrangement of the battery pack and other functional modules can be met, the good collision performance of the vehicle can be met, and the riding safety of passengers is guaranteed.
The structure of powertrain 900 and floor assembly 800 are described in detail below, respectively.
As shown in fig. 9 and 11, a powertrain 900 for a vehicle according to an embodiment of the present invention may include a nacelle-mounting frame structure 400 and a plurality of functional modules, the nacelle-mounting frame structure 400 being provided in a nacelle and the plurality of functional modules being mounted on the nacelle-mounting frame structure 400.
Nacelle mounting frame structure 400 includes a cross beam 410, a plurality of connecting stringers 420, and a plurality of functional modules including a charger, a distribution box, a motor controller 520, a storage battery 530, and a charging socket 540, which may be mounted on cross beam 410 and connecting stringers 420.
The cross beam 410 includes a front cross beam 411 and a rear cross beam 412, the front cross beam 411 and the rear cross beam 412 are arranged at a distance from each other in the front-rear direction, and both ends of each of the front cross beam 411 and the rear cross beam 412 are respectively fixed on the cabin longitudinal beams 430 on the left and right sides through cross beam brackets.
The plurality of functional modules include a charger and distribution box 510, a motor controller 520, a storage battery 530 and a charging socket 540, the charger and distribution box 510 is arranged between the front cross beam 411 and the rear cross beam 412, the motor controller 520 is arranged on the plurality of connecting cross beams 410, and the storage battery 530 is arranged between the front cross beam 411 and the rear cross beam 412.
The charger and the distribution box 510 can be fixed between the front cross beam 411 and the rear cross beam 412 through respective mounting brackets, the motor controller 520 can be mounted between the front cross beam 411 and the rear cross beam 412 through the motor controller mounting bracket, and the storage battery 530 can be mounted between the front cross beam 411 and the rear cross beam 412 through the storage battery 530 mounting bracket.
The charging socket 540 is located at the front part of the front beam 411, and the charging socket 540 is electrically connected with the charger and distribution box 510. The charging gun may be connected to a charging socket 540 to charge the secondary battery 530.
According to the powertrain 900 for a vehicle of the embodiment of the present invention, by providing the cross member 410 and the plurality of connecting longitudinal members 420, a plurality of functional modules can be reasonably arranged in the nacelle, the space occupied by the plurality of functional modules is small, and the space in the nacelle can be fully utilized.
The nacelle mounting frame structure 400 and the connection relationship between the nacelle mounting frame structure 400 and the plurality of functional modules are described in detail below.
The nacelle mounting frame structure 400 according to an embodiment of the present invention will be described in detail below with reference to fig. 11.
A nacelle mounting frame structure 400 for a vehicle according to an embodiment of the present invention may include a cross member 410, a plurality of connecting longitudinal members 420, and a heater mounting bracket 200.
The cross beam 410 includes a front cross beam 411 and a rear cross beam 412, the front cross beam 411 and the rear cross beam 412 are arranged at a distance from each other in the front-rear direction, and both ends of each of the front cross beam 411 and the rear cross beam 412 are respectively fixed on the cabin longitudinal beams 430 on the left and right sides through cross beam brackets.
That is, the front cross member 411 and the rear cross member 412 are not directly fixed to the left and right nacelle stringers 430, but are fixed to the left and right nacelle stringers 430 by cross member brackets. Specifically, a front end of each connecting longitudinal beam 420 is fixed to an upper surface of the front cross member 411, and a rear end of each connecting longitudinal beam 420 is fixed to an upper surface of the rear cross member 412.
Front and rear ends of a plurality of connecting longitudinal members 420 are fixed to upper surfaces of the front and rear cross members 411 and 412, respectively, and a cross member recess 401 is provided on an upper surface of one of the cross members 410.
According to the nacelle mounting frame structure 400 for a vehicle of the embodiment of the present invention, the cross beams 410 are fixed to the nacelle stringers 430 on the left and right sides by the cross beam brackets, so that the nacelle mounting frame structure 400 is more stable, the functional modules can be more firmly mounted on the nacelle mounting frame structure 400, and the cross beams 410 are easily mounted and dismounted.
Connecting longitudinal beam 420 comprises a middle connecting longitudinal beam 421 and a side connecting longitudinal beam 422, wherein middle connecting longitudinal beam 421 is located in the middle of front cross beam 411, and side connecting longitudinal beam 422 is located on one side of middle connecting longitudinal beam 421. Of course, there may be a plurality of connecting longitudinal beams 420, and the number of connecting longitudinal beams 420 is not limited in the present invention.
The connecting longitudinal beam 420 is a U-shaped structure which is open downwards, and a connecting longitudinal beam flange 420a is arranged at the lower end of the connecting longitudinal beam 420. The connecting longitudinal beam flanges 420a can increase the strength of the connecting longitudinal beams 420, so that the strength of the entire nacelle mounting frame structure 400 can be improved, and the functional modules can be more stably mounted on the nacelle mounting frame structure 400.
Further, a connecting longitudinal beam lightening hole 402 extending in the front and back direction is formed in the side wall of the connecting longitudinal beam 420. As a result, the strength of connecting stringer 420 is increased, the weight of connecting stringer 420 is reduced, and the manufacturing cost of connecting stringer 420 is reduced, at least to some extent.
Further, a connecting stringer reinforcing structure 420b extending forward and rearward is provided on the top wall of the connecting stringer 420. Thereby, the strength of connecting stringer 420 is further increased.
The connecting side member reinforcing structure 420b is at least partially overlapped with the connecting side member lightening holes 402 in the front-rear direction. Thus, the connecting stringer reinforcing structure 420b and the connecting stringer lightening holes 402 compensate for each other, and together, the strength of the connecting stringer 420 is increased.
The connecting longitudinal beam flange 420a is provided with an avoiding gap 403, the avoiding gap 403 is positioned on the connecting longitudinal beam flange 420a on one side of the connecting longitudinal beam 420, and the avoiding gap 403 is close to the front cross beam 411. The avoidance gap 403 is used for avoiding the functional module, and interference between the connecting longitudinal beam 420 and the functional module is avoided.
The vehicle according to the embodiment of the present invention may include the nacelle mounting frame structure 400 according to the above-described embodiment, and since the vehicle according to the embodiment of the present invention is provided with the nacelle mounting frame structure 400 according to the above-described embodiment, functional modules in the nacelle are more easily arranged, and the space in the nacelle can be sufficiently utilized.
As shown in fig. 9 and 10, the plurality of functional modules may include: a charger and distribution box 510, a motor controller 520, and a battery 530, but is not limited thereto. The charger and distribution box 510, the motor controller 520, and the battery 530 are linearly arranged between the front cross member 411 and the rear cross member 412. That is, the charger and distribution box 510, the motor controller 520, and the storage battery 530 may be sequentially arranged between the front beam 411 and the rear beam 412 along the length direction of the front beam 411 and the rear beam 412.
Four corners at the bottom of the charger and distribution box 510 are respectively fixed with the front cross beam 411 and the rear cross beam 412. Two corners of the bottom of the charger may be fixed on the front beam 411, and the other two corners of the bottom of the charger may be fixed on the rear beam 412; two corners of the bottom of the electrical box may be fixed to the front cross member 411 and the other two corners of the bottom of the electrical box may be fixed to the rear cross member 412.
Alternatively, the charger may be fixed between the front beam 411 and the rear beam 412 by a charger mounting bracket, and the distribution box may be mounted between the front beam 411 and the rear beam 412 by a distribution box mounting bracket.
A plurality of motor controller mounting brackets are provided on the upper surface of each connecting longitudinal beam 420, and the bottom of the motor controller 520 is fixed to the plurality of motor controller mounting brackets. In other words, motor controller 520 is not directly secured to connecting stringer 420, but rather is secured to connecting stringer 420 via a motor controller mounting bracket.
Four corners of the bottom of the storage battery 530 are respectively fixed with the front cross beam 411 and the rear cross beam 412, and the bottom of the storage battery 530 is also provided with separately arranged fixing points which are fixed on the wheel cover. That is, battery 530 is fixed not only to front cross member 411 and rear cross member 412 but also to the wheel house. Therefore, battery 530 is more stably disposed inside the cabin, and the stability of battery 530 operation is improved.
The powertrain 900 for a vehicle according to the embodiment of the present invention may further include a motor assembly including a driving motor and a transmission, the motor assembly being disposed at the bottom of the front cross member 411 and the rear cross member 412.
The drive motor and gearbox may be fixed to the bottom of the front and rear cross members 411, 412 by suspension, which may include left and right suspensions on the left and right side nacelle stringers 430, and a rear suspension on the rear cross member 412.
The charging socket 540 further includes a socket body 541 and socket fixing arms 542, the socket fixing arms 542 being disposed on the socket body 541 and extending rearward relatively, respectively. One end of the socket fixing arm 542 is fixed to the socket body 541, and the other end of the socket fixing arm 542 may be fixed to the front cross member 411, but is not limited thereto.
The socket fixing arms 542 and the socket body 541 form a V shape, and the width of the socket fixing arms 542 decreases from the end closer to the socket body 541 to the end farther away. Therefore, the amount of material used for the socket fixing arms 542 is reduced, and the manufacturing cost of the socket fixing arms 542 is reduced at least to some extent.
The vehicle according to the embodiment of the present invention may include the powertrain 900 (the nacelle mounting frame structure 400 and the plurality of functional modules) according to the embodiment of the present invention, and since the vehicle according to the embodiment of the present invention is provided with the powertrain 900, the internal space of the nacelle of the vehicle can be fully utilized, and the entire vehicle structure is more stable.
The structure of the cross beam bracket of the embodiment of the present invention is described in detail below.
In one embodiment of the present invention, as shown in fig. 18 to 19, the beam bracket 130 includes a bracket body 131, the bracket body 131 is U-shaped with an opening facing downward and includes a bracket body top wall 131a, a bracket body first side wall 131b, and a bracket body second side wall 131c, and lower ends of the bracket body first side wall 131b and the bracket body second side wall 131c are respectively provided with side wall turnups 131d extending in directions away from each other.
The bracket body top wall 131a is provided with a top wall flange 131e extending downwards, the bracket body first side wall 131b and the bracket body second side wall 131c are respectively provided with side wall flanges 131f extending towards each other, the two side wall flanges 131f are respectively arranged at the side ends of the bracket body first side wall 131b and the bracket body second side wall 131c, and the two side wall flanges 131f and the top wall flange 131e are fixed.
From this, improved crossbeam support 130's intensity, crossbeam support 130 can bear bigger weight, has improved crossbeam support 130's life at least to a certain extent.
The upper end of the side wall flange 131f is spaced apart from the bracket body top wall 131a up and down, and the lower end of the side wall flange 131f is flush with the lower end of the top wall flange 131 e. In other words, only a portion of the side end of the first side wall 131b of the bracket body extends out of the side wall flange 131f, and only a portion of the side end of the second side wall 131c of the bracket body extends out of the side wall flange 131 f.
More specifically, a sidewall flange 131f extends from a lower portion of a side end of the first bracket body sidewall 131b, and a sidewall flange 131f extends from a lower portion of a side end of the second bracket body sidewall 131 c.
In another embodiment of the present invention, as shown in fig. 20-21, the beam bracket 140 includes a bracket body 141 and a bracket lower connecting plate 142, the bracket body 141 is U-shaped with an opening facing downward and includes a bracket body top wall 141a and bracket body first and second side walls 141b and 141 c. The lower connecting plate 142 is L-shaped and includes a horizontal plate 142a and a vertical plate 142b, and the lower ends of the first side wall 141b and the second side wall 141c of the bracket body are fixed to the horizontal plate 142a of the lower connecting plate 142.
The U-shaped bracket body 141 and the L-shaped bracket lower connecting plate 142 are fixed together, which can significantly improve the strength of the beam bracket 140 and ensure that the beam bracket 140 can more stably support the front beam 411 and the rear beam 412.
The first side wall 141b and the second side wall 141c of the bracket body are respectively provided with side flanges 141d extending toward each other, and the two side flanges 141d are fixed to each other. Thereby, the strength of the beam bracket 140 is further enhanced.
In yet another embodiment of the present invention, as shown in fig. 22 to 23, the cross beam bracket 150 includes a first standing wall 151, a second standing wall 152, and a top connecting wall 153, and the top connecting wall 153 is connected to upper ends of the first standing wall 151 and the second standing wall 152.
The first standing wall 151 is provided at both side edges thereof with first standing wall side flanges 151a extending toward the second standing wall 152, the second standing wall 152 is provided at both side edges thereof with second standing wall side flanges 152a extending toward the first standing wall 151, and the first standing wall side flanges 151a and the second standing wall side flanges 152a at the same side are face-fixed. Thereby, the strength of the beam bracket 150 is improved, and the beam 410 can be more stably mounted on the beam bracket 150.
A first standing wall side burring 151a is formed on an upper portion of the first standing wall 151, a lower portion of the first standing wall 151 is adapted to be fixed to one of the left and right nacelle stringers 430, and the first standing wall side burring 151a and the second standing wall side burring 152a are spaced up and down from the roof connecting wall 153.
The upper portion of the first standing wall 151 is inclined with respect to the second standing wall 152, and the upper portion of the first standing wall 151 is provided with a first standing wall rib 151b extending vertically.
A heater mounting bracket 200 according to an embodiment of the present invention will be described in detail with reference to fig. 13 to 17.
As shown in fig. 13 to 15, a heater mounting bracket 200 according to an embodiment of the present invention may include a heater mounting plate 210 and a heater reinforcing plate 220, and heater mounting positions for fixing a heater are provided at four corners of the heater mounting plate 210.
The heater reinforcing plate 220 is fixed with the heater mounting plate 210 and defines a beam fixing cavity for fixing the beam 410 between the heater reinforcing plate 220 and the heater mounting plate 210. That is, the heater reinforcing plate 220 is fixed to the cross member 410 together with the heater mounting plate 210. Alternatively, the heater reinforcing plate 220 and the heater mounting plate 210 may be fixed to the rear cross member 412.
Since the heaters are installed at four corners of the heater installation plate 210, the heaters are fixed to the cross member 410 by being fixed to the heater installation plate 210. The top wall of the heater reinforcing plate 220 may be located within the beam recess 401 so that the top wall of the heater reinforcing plate 220 is substantially flush with the outer surface of the beam 410.
According to the heater mounting bracket 200 of the embodiment of the invention, the heater is fixed on the heater mounting plate 210, and the heater mounting plate 210 and the heater reinforcing plate 220 are fixed on the cross beam 410 together, so that the heater can be stably mounted on the cross beam 410, and the working stability of the heater is improved.
As shown in fig. 16, the heater mounting plate 210 is provided with a heater mounting plate reinforcing structure 211 extending in the longitudinal direction of the heater mounting plate 210. Thereby, the strength of the heater mounting plate 210 is further improved, so that the heater can be more firmly mounted on the heater mounting plate 210.
Further, as shown in fig. 16, the heater mounting plate 210 is also provided with a heater mounting plate lightening hole 201. Therefore, on the premise of ensuring the strength of the heater mounting plate 210, the weight of the heater mounting plate 210 is reduced, the use of raw materials is reduced, and the manufacturing cost of the heater mounting plate 210 is reduced to at least a certain extent.
Further, the heater mounting plate lightening holes 201 are positioned opposite to the beam fixing cavities. Thereby, the stability of the heater mounting bracket 200 is further improved, and the heater can be more stably mounted on the heater mounting bracket 200.
Further, the heater mounting plate reinforcing structure 211 is two reinforcing ribs, and the two reinforcing ribs are respectively located at two sides of the heater mounting plate lightening hole 201. Of course, it is understood that the structure and number of the reinforcing ribs are not limited in the present invention, and the heater mounting plate reinforcing structure 211 may be other reinforcing structures as long as the heater mounting plate reinforcing structure 211 can reinforce the heater mounting plate 210.
The heater reinforcing plate 220 is configured in a U-shaped structure that is open downward, and heater reinforcing plate flanges 221 that extend in directions away from each other are provided at lower ends of the U-shaped heater reinforcing plate 220, respectively, and the heater reinforcing plate flanges 221 are surface-fixed to the heater mounting plate 210. Thereby, the heater reinforcing plate 220 and the heater mounting plate 210 can be more securely mounted together, and the strength of the heater mounting bracket 200 is improved.
The top wall of the U-shaped heater reinforcing plate 220 is positioned in the groove of the cross member 410, and both side walls of the U-shaped heater reinforcing plate 220 extend downward along both side surfaces of the cross member 410, respectively. Thus, the heater reinforcing plate 220 and the heater mounting plate 210 clamp the cross member 410 together, and the heater reinforcing plate 220 and the heater mounting plate 210 are fixed to the cross member 410 together.
Since the top wall of the heater reinforcing plate 220 is located in the groove of the cross beam 410, the top wall of the heater reinforcing plate 220 is flush with the upper surface of the cross beam 410, so that the whole appearance is more attractive.
In some embodiments of the present invention, as shown in fig. 14, the heater 300 includes a heater body 310 and a heater supporter 320, a plurality of supporter mounting positions 323 are disposed on the heater supporter 320, and the plurality of supporter mounting positions 323 and the plurality of heater mounting positions are respectively fixed correspondingly.
It should be noted that the plurality of bracket mounting locations 323 and the plurality of heater mounting locations may be fixed by fasteners, or may be directly fixed by welding.
As shown in fig. 17, the heater supporter 320 includes a heater supporter bottom wall 321 and heater supporter standing walls 322, the heater supporter standing walls 322 extend upward from two opposite edges of the heater supporter bottom wall 321, and the upper ends of the heater supporter standing walls 322 are provided with supporter mounting positions 323 extending in a direction to approach each other.
That is, the heater supporter bottom wall 321, the heater supporter standing wall 322, and the supporter mounting position 323 are configured in a box-like structure, and the heater body 310 can be mounted in the heater supporter 320.
Further, the bracket mounting locations 323 clamp the corresponding heater mounting locations to the heater body 310. That is, the heater mounting position, and the bracket mounting position 323 are sequentially arranged, and the heater mounting position is disposed between the heater and the bracket mounting position 323.
The vehicle according to the embodiment of the present invention may include the heater mounting bracket 200 according to the embodiment, and since the vehicle according to the embodiment of the present invention is provided with the heater mounting bracket 200, the heater mounting of the vehicle is more stable and the arrangement thereof is more reasonable.
The floor assembly 800 of an embodiment of the present invention is described in detail below with reference to fig. 2-3 and 6.
The floor panel assembly 800 includes a floor panel 810 and a floor beam structure 700, and the floor beam structure 700 is a support structure for supporting the floor panel 810, so that the floor beam structure 700 can disperse the transmission path of impact force during a vehicle collision, thereby effectively protecting passengers and a battery pack.
As shown in fig. 3, the floor beam structure 700 may include a center tunnel 610, a floor side sill 710, a floor cross member 760, and inclined connecting members 720, the center tunnel 610 may be provided on a floor panel 810, and the floor side sills 710 are provided on a lower surface of the floor panel 810 and spaced left and right, but it is understood that two floor side sills 710 are disposed on left and right sides of the center tunnel, respectively, and the floor panel 810 is supported by the left side floor side sill 710 and the right side floor side sill 710 together.
The inclined connecting beams 720 are disposed on the lower surface of the floor panel 810 and located on the left and right sides of the center tunnel 610, the front end of each inclined connecting beam 720 on each side is connected to the floor side sill 710 on the same side, and the rear end is connected to the floor cross member 760 and the center tunnel 610 on the same side.
Thus, the floor 810, the floor cross member 760, the floor side sill 710, and the inclined connecting member 720 are closely coupled together, and the strength of the floor beam structure 700 and the floor assembly 800 is remarkably improved.
In addition, the reinforcing beam of the under-floor longitudinal beam 710 is eliminated, so that the space below the floor panel 810 is increased, more batteries can be accommodated in the space below the floor panel 810, and the cruising ability of the vehicle is improved.
According to the floor panel assembly 800 for a vehicle according to the embodiment of the present invention, the floor sill 710, the floor cross member 760 and the inclined connecting beam 720 are fixedly connected together, so that the strength of the floor panel beam structure 700 and the floor panel assembly 800 is improved, the space under the floor panel 810 is larger, more batteries can be accommodated, and the cruising ability of the vehicle is effectively improved.
In addition, the floor side sills 710, the floor cross member 760 and the inclined connecting beams 720 are fixedly connected together, so that impact force applied to the vehicle during collision can be dispersed, and safety of a cab and a battery pack is guaranteed.
In some embodiments of the present invention, the left edge and the right edge of the floor panel 810 (i.e., the left and right sides of the center tunnel 610) are further provided with the threshold side beams 730, the floor beam structure 700 further includes torsion boxes 740, the torsion boxes 740 are disposed on the lower surface of the floor panel 810 and are respectively located on the left and right sides of the center tunnel 610, and the torsion boxes 740 on each side are respectively connected to the threshold side beams 730, the floor side sills 710 and the floor cross beams 760 on the same side.
In other words, the torsion case 740 connects the rocker side member 730 to the under-floor side member 710 and the floor cross member 760, thereby further improving the strength of the floor panel assembly 800, and dispersing impact force during a vehicle collision, thereby ensuring safety of the cab and the battery pack.
Further, the front end of the inclined connecting beam 720 is fixed to the front end of the floor side sill 710 on the same side, and the rear end of the inclined connecting beam 720 is fixed to the end of the floor cross member 760 on the same side near the center tunnel 610.
In other words, the inclined connecting beam 720 is fixed to an end of the floor cross member 760 near the center tunnel 610 and extends outward and forward.
The outer side of the torsion box 740 is fixed to the sill 730 on the same side, and the inner side of the torsion box 740 is fixed to the floor sill 710 and the floor cross member 760 on the same side, respectively. The rocker side members 730, the floor side sills 710, and the floor cross members 760 are provided on the left and right sides of the torsion box 740, respectively.
Further, the front of the inner edge of the torque box 740 abuts the front end of the inclined connecting beam 720 on the same side. In other words, the inner edge of the torsion box 740 is not connected to the inclined connection beam 720 on the same side.
The same-side inclined connecting beams 720, the floor side sills 710, and the floor cross members 760 form a generally triangular shape. Thereby, the strength of the floor panel assembly 800 is remarkably improved, and an impact force can be effectively dispersed when a vehicle collides.
In the event of a frontal collision, the impact force may be transmitted through the path of the under floor rail 710, the torsion box 740, and the rocker side member 730, or may be transmitted between the under floor rail 710, the torsion box 740, the floor cross member 760, and the center tunnel 610, or may be transmitted through the under floor rail 710, the inclined connecting member 720, and the center tunnel 610.
In the event of a side impact, the impact force may be transmitted to the center tunnel 610 through the rocker 730, the torsion box 740, the under-floor rail 710, and the inclined connecting beam 720, or may be transmitted to the center tunnel 610 through the rocker 730, the torsion box 740, the under-floor rail 710, and the floor cross-member 760.
In some embodiments of the present invention, the floor beam structure 700 further comprises a plurality of center tunnel lateral reinforcement structures 620, the plurality of center tunnel lateral reinforcement structures 620 being disposed in the center tunnel 610 at intervals in the front-rear direction, wherein the center tunnel lateral reinforcement structure 620 located at the foremost is distributed in a straight line with the floor cross beams 760 on both sides.
The floor beam structure 700 further includes an upper floor stringer (not shown) disposed on an upper surface of the floor panel 810 in a left-right spaced apart arrangement. The floor upper longitudinal beam can be opposite to the floor lower longitudinal beam 710 on the same side in the up-down direction. Thus, the strength of the floor panel assembly 800 and the floor beam structure 700 is further improved, the collision prevention capability of the vehicle is improved, and the safety of passengers and the battery pack is protected.
The floor beam structure 700 further comprises a front seat cross beam 770 and a rear seat cross beam 780, wherein the front seat cross beam 770 is positioned at the left side and the right side of the middle channel 610 and is respectively connected with the middle channel 610 and the threshold side beam 730 at the same side, and the rear end of the upper floor longitudinal beam is connected with the front seat cross beam 770 at the same side;
the rear seat cross members 780 are located on the left and right sides of the center tunnel 610 and are connected to the center tunnel 610 and the rocker 730 on the same side, respectively.
The vehicle provided by the embodiment of the invention can comprise the floor assembly 800 of the embodiment, and because the vehicle provided by the embodiment of the invention is provided with the floor assembly 800, the vehicle has high structural strength of the whole frame when being collided, the impact force can be reasonably dispersed, the safety of a cab and a battery pack is ensured, and the safety of passengers is improved.
As shown in fig. 3 and 4, at least a portion of a floor panel 810 in the floor panel assembly 800 protrudes upward to form a battery installation space 801 opened downward, and floor side sills 710 are provided on a lower surface of the floor panel 810 and spaced left and right. By protruding at least a part of the floor 810 upwards, the battery installation space 801 is increased, more batteries can be placed below the floor 810, and the endurance and the mileage of the batteries are improved.
The floor panel assembly 800 in the above embodiment is described in detail below.
The left edge and the right edge of the floor 810 are respectively provided with a threshold boundary beam 730, a part of the cross section of the floor lower longitudinal beam 710 is enlarged to be jointed and fixed with the threshold boundary beam 730 on the same side, and the rest part of the floor lower longitudinal beam 710 is spaced from the threshold boundary beam 730 on the same side left and right. Therefore, the floor lower longitudinal beam 710, the threshold side beam 730 and the floor 810 are connected into a whole, the structural strength of the whole vehicle is improved, the safety performance of the vehicle is improved, and the safety of passengers is ensured.
Further, the one portion of the floor side sill 710 is a rear section portion. In other words, the width of the front end portion of the floor side sill 710 is smaller than the width of the rear end portion of the floor side sill 710, and the front end of the floor side sill 710 may be spaced apart from the rocker 730 on the same side.
Specifically, the portion of the floor panel 810 located between the left and right under-floor stringers 710 bulges upward. The floor panel 810 includes a floor protrusion 811, and left and right edge floor panels 812 and 813, the left and right edge floor panels 812 and 813 being connected to the left and right sides of the floor protrusion 811, respectively, and the floor protrusion 811 being located between the right side surface of the left side floor sill 710 and the left side surface of the right side floor sill 710.
A battery mounting space 801 may be defined between the left floor side sill 710, the floor protrusion 811, and the right floor side sill 710, and the battery mounting space 801 may store a large number of battery packs.
Further, the floor protrusion 811 is connected to the left edge floor 812 via an inclined first connecting plate 814, the left side floor side sill 710 has an upward opening U-shaped structure, and the right side wall of the left side floor side sill 710 is a first inclined wall 711 inclined obliquely upward, specifically, the first inclined wall 711 is inclined to the upper right, the first inclined wall 711 is in the same direction as the first connecting plate 814, and the first inclined wall 711 is fixed to the first connecting plate 814.
Therefore, when the left side floor side sill 710 is fixed to the floor 810, it does not protrude into the battery mounting space 801 so as to increase the battery mounting space 801 and to improve the strength of the floor protrusion 811.
The floor protrusion 811 and the right edge floor 813 are connected by an inclined second connecting floor 815, the right-side floor sill 710 has an upward-opening U-shaped structure, and the right-side wall of the right-side floor sill 710 has a second inclined wall 712 inclined obliquely upward, specifically, the second inclined wall 712 is inclined upward and leftward, the second inclined wall 712 is in the same direction as the second connecting floor 815, and the second inclined wall 712 is fixed to the second connecting floor 815.
Therefore, when the right side sill 710 is fixed to the floor 810, it does not protrude into the battery mounting space 801 so as to increase the battery mounting space 801 and increase the strength of the floor protrusion 811.
In some embodiments of the invention, the under-floor stringer 710 extends forward to the front edge of the floor panel 810 and rearward to the rear edge of the floor panel 810. Thereby, the floor panel 810 is effectively supported and the strength of the floor panel 810 is increased, at least to some extent.
The vehicle according to the embodiment of the present invention may include the floor panel assembly 800 of the above-described embodiment, and since the vehicle according to the embodiment of the present invention is provided with the floor panel assembly 800 described above, the vehicle may carry more batteries, and the endurance and the mileage thereof may be enhanced.
As shown in fig. 7 and 8, the center tunnel 610, the plurality of center tunnel transverse reinforcement structures 620, and the center tunnel longitudinal reinforcement structure 630 may collectively comprise a center tunnel assembly 600. The structure of the center channel assembly 600 according to the embodiment of the present invention will be described in detail.
The plurality of center tunnel lateral reinforcement structures 620 are disposed in the center tunnel 610 at intervals in the front-rear direction, and the center tunnel lateral reinforcement structures 620 extend in the width direction of the vehicle, which can effectively increase the side impact resistance of the vehicle.
The center tunnel longitudinal reinforcing structure 630 is arranged between two adjacent center tunnel transverse reinforcing structures 620, and the center tunnel longitudinal reinforcing structure 630 extends along the length direction of the vehicle, so that the frontal collision prevention capability of the vehicle can be effectively improved.
The mid-channel longitudinal reinforcement structure 630 includes two longitudinal branches 631 and a transverse branch 632 connected between the two longitudinal branches 631. From this, the intensity of the vertical additional strengthening 630 of well passageway increases, and then has effectively improved the intensity of well passageway 610, reduces the deformation degree of well passageway 610 when the vehicle bumps, guarantees front passenger's living space, has improved the security performance of whole car.
According to the center tunnel assembly 600 for the vehicle provided by the embodiment of the invention, the center tunnel longitudinal reinforcing structure 630 is arranged between two adjacent center tunnel transverse reinforcing structures 620, so that the strength of the center tunnel 610 is higher, the deformation degree of the center tunnel 610 during the vehicle collision is reduced, the living space of front passengers is ensured, and the safety performance of the whole vehicle is improved.
In some upper embodiments of the present invention, the transverse leg 632 is located forward of the two longitudinal legs 631. It should be noted that the arrangement of the transverse branch 632 at the front of the two longitudinal branches 631 is only a specific example of the present invention, and the position of the transverse branch 632 is not particularly limited. For example, the transverse leg 632 may also be disposed in the middle or lower portion of the two longitudinal legs 631.
Further, the front edges of the transverse branches 632 are flush with the front edges of the two longitudinal branches 631. Thus, the appearance of the center tunnel longitudinal reinforcement structure 630 is neater, and the strength of the center tunnel longitudinal reinforcement structure 630 is improved at least to some extent.
Further, the rear edge of the transverse leg 632 is located forward of the middle of the two longitudinal legs 631. That is, the length of the transverse leg 632 in the longitudinal direction is less than one-half the length of the longitudinal leg 631 in the longitudinal direction.
Alternatively, the length of the lateral leg 632 in the front-rear direction is 0.25 to 05 times the length of the longitudinal leg 631 in the front-rear direction.
In some embodiments of the present invention, the transverse leg 632 is integrally formed with the longitudinal leg 631. Thus, the structure of the center tunnel longitudinal reinforcement structure 630 is simplified, the strength of the center tunnel longitudinal reinforcement structure 630 is improved, and the production efficiency of the center tunnel longitudinal reinforcement structure 630 is improved at least to some extent.
In some embodiments of the invention, the width between the two longitudinal branches 631 located rearward of the transverse branch 632 increases and then remains constant. That is, the distance between the two longitudinal branches 631 is not a constant value, but varies. Thus, the irregularly shaped longitudinal leg 631 may provide the center channel longitudinal reinforcement structure 630 with greater strength.
Further, a portion of the lateral branch 632 is fixed with the one mid-tunnel lateral reinforcement structure 620 located at the front. Therefore, the middle channel longitudinal reinforcing structure 630 and the middle channel transverse reinforcing structure 620 can be fixed together, the strength of the middle channel 610 is further improved, the collision performance of the vehicle body is improved, and the safety of passengers is protected.
In some embodiments of the present invention, the left and right edges of the mid-channel lateral reinforcement structure 620 are flush with the left and right edges of the mid-channel 610, respectively. Thus, the center tunnel 610 as a whole has a better look and feel and the strength of the center tunnel 610 is improved, at least to some extent.
The vehicle provided by the embodiment of the invention can comprise the center tunnel assembly 600 of the embodiment, and the vehicle provided by the embodiment of the invention is provided with the center tunnel assembly 600, so that the vehicle has better collision-preventing capability and the safety performance is improved.
In addition, the transverse branch 632 and the longitudinal branch 631 may be integrally formed, for example, the transverse branch 632 is a single component, the longitudinal branch 631 is a single part, and two longitudinal branches 631 and one transverse branch 632 (three components) are integrally formed by welding. For another example, the transverse branch 632 may be divided into two parts, one of which is integrated with the left longitudinal branch 631, and the other of which is integrated with the right longitudinal branch 631, and then the two parts are welded and fixed together. For another example, the transverse leg 632 is integral with one of the longitudinal legs 631 to form a generally L-shape, and the L-shape is welded to the other longitudinal leg 631.
Further, the floor side sill 710 may be a split structure, such as the floor side sill 710 divided into a front portion and a rear portion, the front portion connected to the rear portion, the rear portion may be a body portion, the rear portion may be longer than the front portion, the front portion connected to the same side nacelle side sill 430, and the front portion may be further secured (e.g., integrally formed) to the dash panel.
In some embodiments, the cabin stringers 430 are disposed at a height greater than that of the rear portions of the floor side sills 710, and the distance between the two cabin stringers 430 is smaller than that between the two floor side sills 710, so that the front portions of the floor side sills 710 are configured to extend downward and outward from the front to the rear, respectively, that is, the front portions of the two floor side sills 710 are formed in a "figure-eight" shape. Thus, the collision force can be smoothly transmitted from the floor side member 430 to the rear portion of the under-floor side member 710 and the floor during a vehicle frontal collision, while achieving a balanced layout of the battery installation space under the floor, the space in the cabin, and the passenger space in the cabin.
Further, an upper floor side member is provided on the upper surface of the floor panel 810, the rear end of the upper floor side member is connected to the front seat cross member 770 on the same side, and the front side extends forward to the front edge of the floor panel 810, the upper floor side member partially coincides with the front portion of the lower floor side member 710 in the up-down direction, and the rear end of the upper floor side member extends rearward beyond the front portion of the lower floor side member 710. Therefore, the front part of the floor 810 is reinforced by the upper longitudinal beam and the lower longitudinal beam of the floor, so that the structural strength of the floor 810 is higher, force transmission channels are richer, and the impact energy is better absorbed.
The vehicle according to the embodiment of the present invention is provided with the floor assembly 1000 in the above-described embodiment, and since the vehicle according to the embodiment of the present invention is provided with the floor assembly 1000 in the above-described embodiment, the vehicle can satisfy the reasonable arrangement of the battery pack and the plurality of functional modules, and the vehicle has excellent collision prevention capability, which effectively guarantees the safety of passengers.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A floor beam structure (700) for a vehicle, comprising:
a middle channel (610);
-floor stringers (710), the floor stringers (710) being located on both left and right sides of the center tunnel (610);
the floor cross beams (760) are arranged on the left side and the right side of the center channel (610), and the floor cross beams (760) on each side are respectively connected with the floor lower longitudinal beams (710) and the center channel (610) on the same side;
the inclined connecting beams (720) are arranged on the left side and the right side of the middle channel (610), the front end of each inclined connecting beam (720) on each side is connected with the floor longitudinal beams (710) on the same side, and the rear end of each inclined connecting beam is connected with the floor cross beam (760) and the middle channel (610) on the same side;
doorsill edge beams (730) positioned on the left and right sides of the middle channel (610); and
the torsion boxes (740) are positioned at the left side and the right side of the middle channel (610), and the torsion boxes (740) at each side are respectively connected with the doorsill edge beam (730), the floor lower longitudinal beam (710) and the floor cross beam (760) at the same side;
the outer side of the torsion box (740) is fixed to the sill edge beam (730) on the same side, the inner side of the torsion box (740) is fixed to the floor side sill (710) and the floor cross beam (760) on the same side, and the front portion of the inner edge of the torsion box (740) is adjacent to the front end of the inclined connecting beam (720) on the same side.
2. The floor beam structure (700) for a vehicle according to claim 1, wherein a front end of the inclined connecting beam (720) is fixed to a front end of the floor side sill (710) on the same side.
3. The floor beam structure (700) for a vehicle according to claim 1, wherein a rear end of the inclined connection beam (720) is fixed with an end of the floor beam (760) on the same side near a center tunnel (610).
4. The floor beam structure (700) for a vehicle according to claim 1, wherein the inclined connecting beam (720), the under floor rail (710), and the floor cross member (760) on the same side form a substantially triangular shape.
5. The floor beam structure (700) for a vehicle according to claim 1, further comprising:
a plurality of center tunnel lateral reinforcement structures (620), the plurality of center tunnel lateral reinforcement structures (620) being provided in the center tunnel (610) at intervals in the front-rear direction, wherein the center tunnel (610) lateral reinforcement structure (620) located at the forefront is distributed in a straight line with the floor cross member (760) on both sides.
6. The floor beam structure (700) for a vehicle according to claim 1, further comprising:
the floor upper longitudinal beam is arranged on the upper surface of the floor and arranged at a left-right interval.
7. The floor beam structure (700) for a vehicle according to claim 6, further comprising:
a front seat cross member (770), wherein the front seat cross member (770) is positioned at the left side and the right side of the middle channel (610) and is respectively connected with the middle channel (610) and the doorsill edge beam (730) at the same side, and the rear end of the floor upper longitudinal beam is connected with the front seat cross member (770) at the same side;
the rear seat cross beam (780) is positioned at the left side and the right side of the middle channel (610), and the rear seat cross beam (780) is respectively connected with the middle channel (610) and the doorsill edge beam (730) at the same side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610503882.2A CN107554621B (en) | 2016-06-30 | 2016-06-30 | Floor beam structure for vehicle |
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| CN201610503882.2A CN107554621B (en) | 2016-06-30 | 2016-06-30 | Floor beam structure for vehicle |
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| CN107554621B true CN107554621B (en) | 2020-05-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107554622B (en) * | 2016-06-30 | 2020-05-08 | 长城汽车股份有限公司 | A floor assembly and vehicle for vehicle |
| CN108791506A (en) * | 2018-04-09 | 2018-11-13 | 吉利汽车研究院（宁波）有限公司 | Body of a motor car and automobile |
| CN111017039B (en) * | 2018-10-10 | 2022-03-01 | 上海汽车集团股份有限公司 | Automobile and floor frame structure thereof |
| CN110435774B (en) * | 2019-07-25 | 2021-04-09 | 中国第一汽车股份有限公司 | Electric automobile front floor structure |
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