CN115009380B - Front floor structure of vehicle body and vehicle - Google Patents
Front floor structure of vehicle body and vehicle Download PDFInfo
- Publication number
- CN115009380B CN115009380B CN202210850110.1A CN202210850110A CN115009380B CN 115009380 B CN115009380 B CN 115009380B CN 202210850110 A CN202210850110 A CN 202210850110A CN 115009380 B CN115009380 B CN 115009380B
- Authority
- CN
- China
- Prior art keywords
- upper cover
- floor
- seat
- longitudinal beam
- cross beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a front floor assembly of a vehicle body, which comprises a floor body structure, and a plurality of seat cross beams and front longitudinal beam upper cover plates which are arranged on the floor body structure, wherein the plurality of seat cross beams are connected with the seat cross beams and front cabin cross beams, so that part of energy generated after collision is transferred to the seat cross beams. According to the front floor assembly of the automobile body, through the reasonable collision energy transmission path, the tilting amount and the tilting speed of the front baffle plate can be reduced, so that the safety of passengers can be effectively protected, the tilting of the automobile body structure deformation to the power battery pack can be effectively reduced, and the battery pack is prevented from being excessively extruded during collision. The invention also discloses a vehicle.
Description
Technical Field
The invention belongs to the technical field of automobile body structures, and particularly relates to a front floor assembly of an automobile body and an automobile.
Background
The existing front floor structure of the electric automobile cabin generally does not support the installation requirements of a multifunctional seat (such as adding a 180-degree rotating function on the basis of XYZ six-direction adjustment) and a multifunctional auxiliary instrument desk (such as adding a function of sliding back and forth on the basis of a fixed instrument desk), and when the functions of the automobile passenger cabin are diversified, more comfortable driving experience can be provided for people on the automobile.
In the prior art, the front floor structure of the electric automobile is realized by modifying the front floor structure of the traditional fuel truck, the three-electricity arrangement of the front floor structure needs to be given way to the original fuel truck platform, the partial structure is unreasonable, the battery pack is possibly invaded by a hard object after collision, the ignition combustion is caused, and the safety is poor; and the structure of the fuel oil vehicle to the electric vehicle has larger restriction on the battery endurance.
The front floor structure of part of electric vehicles in the industry is developed for a brand new platform, but the degree of universalization of parts in the platform is not high, so that the replacement development cost is high, and the replacement period is relatively long.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a vehicle body front floor assembly for the purpose of improving collision safety.
In order to solve the technical problems, the invention adopts the following technical scheme: the front floor assembly of the automobile body comprises a floor body structure, and seat cross beams and front longitudinal beam upper cover plates which are arranged on the floor body structure, wherein the seat cross beams are arranged in a plurality, and the front longitudinal beam upper cover plates are connected with the seat cross beams and the front cabin cross beams so that part of energy generated after collision is transferred to the seat cross beams.
The cross section of the front longitudinal beam upper cover plate is M-shaped, and two cavity bodies are arranged in the front longitudinal beam upper cover plate.
One end of the front longitudinal beam upper cover plate is connected with the front cabin cross beam, the other end of the front longitudinal beam upper cover plate is connected with the seat cross beam, and the front longitudinal beam upper cover plate and the front cabin cross beam are surrounded to form two cavity bodies.
The front floor assembly of the automobile body also comprises middle channel front reinforcing plates arranged on the floor body structure, the front longitudinal beam upper cover plates are arranged in a plurality, the middle channel front reinforcing plates are positioned between two adjacent front longitudinal beam upper cover plates, and the middle channel front reinforcing plates are connected with the front cabin cross beam so that part of energy generated after collision is transferred to the seat cross beam.
The middle channel front reinforcing plate comprises a first side connecting part, a second side connecting part and an intermediate connecting part which is connected with the first side connecting part and the second side connecting part and is positioned between the first side connecting part and the second side connecting part, and the weight reducing hole is positioned between the first side connecting part and the second side connecting part.
The seat cross beams are arranged in two or three, and all the seat cross beams are sequentially arranged along the length direction of the floor body structure.
The cross section of the main body of the seat cross beam adopts a uniform-section M-shaped structure and is made of a rolled super-strong plate.
The seat cross beams are two, the two seat cross beams are a front cross beam and a rear cross beam respectively, the cross section of the rear cross beam is in a Chinese character 'ri' shape, and a plurality of mounting brackets are arranged on the front cross beam.
The front floor assembly of the automobile body also comprises two threshold structures arranged on the floor body structure, the seat beam is arranged between the two threshold structures, two ends of the seat beam are respectively connected with the two threshold structures, the threshold structures comprise a threshold body and a threshold reinforcing beam, the cross section of the threshold body is U-shaped, and the cross section of the threshold reinforcing beam is shaped like a Chinese character 'mu'.
The invention also provides a vehicle, which comprises the vehicle body front floor assembly.
According to the front floor assembly of the automobile body, through the reasonable collision energy transmission path, the tilting amount and the tilting speed of the front baffle plate can be reduced, so that the safety of passengers can be effectively protected, the tilting of the automobile body structure deformation to the power battery pack can be effectively reduced, and the battery pack is prevented from being excessively extruded during collision.
Drawings
FIG. 1 is an exploded schematic view of a front floor assembly of a vehicle body in accordance with the present invention;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
FIG. 3 is a schematic view of the front floor assembly of the vehicle body of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural view of the front rail upper deck;
FIG. 6 is a schematic view of the structure of the middle channel front reinforcement plate;
FIG. 7 is a schematic structural view of the front cross member;
FIG. 8 is a schematic view of the structure of the rear cross member;
FIG. 9 is a schematic view of a rocker structure;
fig. 10 is a schematic structural view of a battery mid-mounting structure;
FIG. 11 is a schematic structural view of a floor body structure;
FIG. 12 is a schematic view of the structure of a front floor assembly of the vehicle body according to the first embodiment;
FIG. 13 is a schematic view of the structure of a front floor assembly of a vehicle body according to the second embodiment;
FIG. 14 is a schematic view of the structure of a front floor assembly of a vehicle body according to the third embodiment;
FIG. 15 is a schematic view of the connection of the bottom of the front floor to the battery;
the labels in the above figures are: 1. a front side rail upper cover plate; 2. a middle channel front reinforcing plate; 3. a front cross member; 4. a rear cross member; 5. a threshold structure; 6. a battery middle mounting structure; 7. a floor body structure; 8. a front cabin cross beam; 9. a seat cross member; 201. a first side connection portion; 202. a second side connection portion; 203. an intermediate connection portion; 501. a doorsill body; 502. the threshold strengthens the beam.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "upper", "lower", and the like are used herein for the purpose of illustration only.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction between structures and/or functions, and do not represent a sequential order of execution, but are merely for convenience of description.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this invention belongs, and the knowledge of terms used in the description of this invention herein for the purpose of describing particular embodiments is not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the present invention provides a front floor assembly for a vehicle body, comprising a floor body structure 7, and a seat cross member 9 and a front side member upper cover plate 1 provided on the floor body structure 7, the seat cross member 9 being provided in plurality, the front side member upper cover plate 1 being connected with the seat cross member 9 and the front cabin cross member 8 so that part of energy generated after collision is transferred to the seat cross member 9, and a power battery pack being installed under the floor body structure 7.
Specifically, the front floor assembly of the electric platform provided by the invention has multifunctional cabin compatibility; the safety protection of the battery and the safety protection of passengers are excellent; sufficient arrangement space can be provided for the long-endurance battery; and the parts of the same platform and multiple vehicle types have high universality, short development and substitution period and low cost.
As shown in fig. 1, 2 and 5, the front side member upper cover plate 1 is located inside the passenger compartment, the front side member upper cover plate 1 is disposed at the front end of the floor body structure 7, the front side member upper cover plate 1 is located on the top surface of the floor body structure 7 and the front side member upper cover plate 1 is fixedly connected with the floor body structure 7, the floor body structure 7 is horizontally disposed, the length direction of the floor body structure 7 is parallel to the length direction of the vehicle body, and the width direction of the floor body structure 7 is parallel to the width direction of the vehicle body. The cross section of the front longitudinal beam upper cover plate 1 (the cross section is a cross section perpendicular to the length direction of the front longitudinal beam upper cover plate 1) is M-shaped, two cavity bodies are arranged inside the front longitudinal beam upper cover plate 1, the two cavity bodies extend along the length direction of the front longitudinal beam upper cover plate 1, the two cavity bodies are sequentially arranged along the width direction of the front longitudinal beam upper cover plate 1, and the width direction of the front longitudinal beam upper cover plate 1 is parallel to the width direction of the floor body structure 7.
As shown in fig. 1, 2 and 5, one end of the front longitudinal beam upper cover plate 1 is fixedly connected with the front cabin cross beam 8, the other end of the front longitudinal beam upper cover plate 1 is fixedly connected with the seat cross beam 9, the front longitudinal beam upper cover plate 1 and the front cabin cross beam 8 are surrounded to form two cavity bodies, the two cavity bodies are respectively located in a first cavity body and a second cavity body, the first cavity body is located above the second cavity body, and the first cavity body and the second cavity body are box-shaped cavity bodies. The length direction of the front cabin cross beam 8 is parallel to the width direction of the floor body structure 7, the front cabin cross beam 8 is fixedly connected with the end parts of all the front longitudinal beam upper cover plates 1, the front longitudinal beam upper cover plates 1 are fixedly connected with the front cabin longitudinal beams, and the length direction of the front cabin longitudinal beams is parallel to the length direction of the floor body structure 7. The front longitudinal beam upper cover plate 1 is connected with the front cabin cross beam 8 and the front cabin longitudinal beam to form a stable supporting structure, part of energy can be transferred to the seat cross beam 9 and the frame structure of the power battery pack in the collision process, the effect of reducing the pouring amount and the pouring speed of a front baffle (the front baffle structure belongs to the front cabin structure part) is achieved, accordingly, the safety of passengers can be effectively protected, the pouring of the deformation of a vehicle body structure into the battery structure can be effectively reduced, and the battery pack is protected from being excessively extruded in the collision process.
Preferably, the front longitudinal beam upper cover plate 1 is stamped by a high-strength plate, and is fixedly connected with the front cabin structure, the floor body structure 7 and the front seat front cross beam 3 through spot welding.
As shown in fig. 1 and 6, the front floor assembly for a vehicle body of the present invention further includes a middle tunnel front reinforcement plate 2 provided on the floor body structure 7, the front side member upper cover plates 1 are provided in plurality, the middle tunnel front reinforcement plate 2 is located between two adjacent front side member upper cover plates 1, and the middle tunnel front reinforcement plate 2 is connected with the front cabin cross member 8 so that part of energy generated after collision is transferred to the seat cross member 9. The middle channel front reinforcing plate 2 is positioned between the seat cross beam 9 and the front cabin cross beam 8, one end of the middle channel front reinforcing plate 2 is fixedly connected with the front cabin cross beam 8, and the other end of the middle channel front reinforcing plate 2 is fixedly connected with the floor body structure 7.
The middle part of the middle channel front reinforcing plate 2 is of a hollow structure, and the structure can play a better role in weight reduction and can fully utilize the idle space. The middle channel front stiffener 2 is used to provide mounting points for the mounting of boundary pieces including central control modules, fascia beams, wiring harnesses, and the like. The arrangement of the middle channel front reinforcing plate 2 can improve collision safety. The middle channel front reinforcing plate 2 is mainly characterized in that the middle channel front reinforcing plate is connected with the front cabin cross beam 8, the power battery pack and the seat cross beam 9 to form a stable supporting structure, part of energy can be transferred to the seat cross beam 9 in the collision process, the impact and the tilting of parts such as a motor and the like to the baffle in the frontal collision process can be reduced, the deformation of the floor body is reduced, and therefore the effect of protecting the battery is achieved.
Preferably, the middle channel front reinforcement plate 2 is stamped from a high strength plate, which is fixed to the front cabin structure, the floor body structure 7 and the front seat front cross member 3 by spot welding.
As shown in fig. 1 and 6, the middle tunnel front reinforcing plate 2 is provided with a lightening hole, and the middle tunnel front reinforcing plate 2 includes a first side connection portion 201, a second side connection portion 202, and an intermediate connection portion 203 connected to the first side connection portion 201 and the second side connection portion 202 and located between the first side connection portion 201 and the second side connection portion 202, the lightening hole being located between the first side connection portion 201 and the second side connection portion 202. The middle channel front reinforcing plate 2 is of a U-shaped structure, one end of the middle connecting portion 203 is fixedly connected with the first side connecting portion 201, the other end of the middle connecting portion 203 is fixedly connected with the second side connecting portion 202, and the lengths of the first side connecting portion 201 and the second side connecting portion 202 are larger than those of the middle connecting portion 203. One ends of the first side connecting portion 201 and the second side connecting portion 202 in the length direction are fixedly connected with the front cabin cross member 8, the other ends of the first side connecting portion 201 and the second side connecting portion 202 are fixedly connected with the floor body structure 7, and the intermediate connecting portion 203 is also fixedly connected with the floor body structure 7.
As shown in fig. 1, in the present embodiment, two front side member upper cover plates 1 are provided, the two front side member upper cover plates 1 are symmetrically arranged, the center tunnel front reinforcing plate 2 is located at a center position of the two front side member upper cover plates 1, and the center tunnel front reinforcing plate 2 is located at a center position in the width direction of the floor body structure 7.
Preferably, as shown in fig. 1, 3 and 4, a plurality of seat cross beams 9 are provided, all the seat cross beams 9 are sequentially arranged along the length direction of the floor body structure 7, the length direction of the seat cross beams 9 is parallel to the width direction of the floor body structure 7, the seat cross beams 9 are fixedly arranged on the top surface of the floor body structure 7, and the seat cross beams 9 are used for installing seats.
As shown in fig. 1 and 9, the front floor assembly of the vehicle body of the present invention further includes two threshold structures 5 disposed on the floor body structure 7, the seat cross beam 9 is disposed between the two threshold structures 5, and both ends of the seat cross beam 9 are fixedly connected with the two threshold structures 5, the threshold structure 5 includes a threshold body 501 and a threshold reinforcement beam 502, the cross section of the threshold body 501 is U-shaped (the cross section is a cross section perpendicular to the length direction of the threshold body 501), the length direction of the threshold body 501 is parallel to the length direction of the floor body structure 7, the threshold body 501 is fixedly connected with the floor body structure 7, the threshold reinforcement beam 502 is disposed in an inner cavity of the threshold body 501, the cross section of the threshold reinforcement beam 502 is in a letter shape (the cross section is a cross section perpendicular to the length direction of the threshold reinforcement beam 502), and the length direction of the threshold reinforcement beam 502 is parallel to the length direction of the threshold body 501. The height of the threshold stiffening beam 502 is the same as the height of the seat cross beam 9, the floor body structure 7 is located below the seat cross beam 9, and the threshold stiffening beam 502 is arranged in a penetrating manner along the length direction of the threshold body 501. Therefore, the main characteristics of the threshold structure 5 are that the arrangement position of the threshold stiffening beam 502 in the Z direction (the vertical direction, the length and the width direction of the floor body structure 7 are both in the horizontal direction) is completely consistent with the arrangement position of the seat cross beam 9 in the Z direction, and the threshold stiffening beam 502 integrally penetrates the front and the back of the threshold body 501, so that the bearing capacity of the threshold structure 5 is greatly improved, the side column collision can effectively perform energy transfer through the threshold structure 5 and the seat cross beam 9, the front part of the arrangement can be used for coping with offset collision, frontal collision and omnibearing protection can be performed on passengers and power battery packs, and the collision safety can be effectively improved.
Preferably, the door sill body 501 adopts a rolling equal section structure, and the door sill reinforcing plate adopts a 'mesh' -shaped extruded aluminum material. The wheel base change of the vehicle type can be realized through the length change of the threshold and the inner beam, so that the vehicle type wheel base change can be realized without a new development die, and the development period is greatly reduced.
Preferably, the door sill body 501 is formed by rolling a high-strength plate, the door sill reinforcing plate is made by an aluminum extrusion process, and the door sill body 501 is fixedly welded with the front cabin structure, the upper vehicle body structure, the front cross beam 3, the rear cross beam 4 and the floor body structure 7.
As shown in fig. 1 and 10, the battery middle-mounting structure 6 is disposed on the floor body structure 7, and the battery middle-mounting structure 6 is disposed in the accommodating groove, the accommodating groove is formed between two adjacent seat beams 9, the power battery pack is mounted on the battery middle-mounting structure 6, the length direction of the battery middle-mounting structure 6 is parallel to the length direction of the floor body structure 7, and two ends of the battery middle-mounting structure 6 in the length direction are fixedly connected with the two seat beams 9 respectively. The battery middle part mounting structure 6 is a closed Chinese character 'ji', a battery mounting plate is arranged in the battery middle part mounting structure, the structure of the battery middle part mounting structure and a cross beam arranged in the battery form an integrated connection, and the function of synchronously transmitting energy is achieved in the collision process.
Preferably, the battery middle mounting structure 6 is formed by rolling a high-strength plate, a battery mounting plate is arranged inside the battery middle mounting structure 6, and the battery middle mounting structure 6, the seat cross beam 9 and the floor body structure 7 are fixedly connected through spot welding.
As shown in fig. 1 and 11, the main characteristics of the floor body structure 7 are that the large surface of the body is parallel to the XY main plane, a foundation is provided for the universalization of the seat cross beam 9, and the outside of the vehicle has no beam structure, so that a sufficient arrangement space can be provided for batteries, and the conventional automobile is easy to cause structural instability due to the existence of a middle channel, the front floor is easy to generate structural instability in side column collision, the tilting amount of the automobile body structure is too large, the side collision safety is affected, and the flat floor structure is adopted, so that a foundation is provided for the left-right penetrating type seat, and the structural instability defect at the middle channel of the conventional automobile is avoided.
The floor body structure 7 is fixedly welded with the front longitudinal beam upper cover plate 1, the middle channel front reinforcement, the seat cross beam 9, the threshold structure 5 and the battery middle mounting structure 6. The novel automobile seat is characterized in that the novel automobile seat is connected into an integral frame structure through a floor body structure 7, a front longitudinal beam upper cover plate 1, a middle channel front reinforcing structure, a seat cross beam 9, a threshold structure 5 and a battery middle mounting structure 6, the frame structure is simple, a cabin with multifunctional configuration (different automobile types, different seats and auxiliary instrument boards) can be compatible, the universalization degree of parts in a platform reaches more than 90%, and the novel automobile seat is good in collision safety and is worth recommending.
The front floor assembly of the vehicle body with the structure has the following advantages:
1. the multifunctional seat and the multifunctional auxiliary instrument desk are realized through the seat cross beam 9 and the support structure, so that the installation of the multifunctional seat and the auxiliary instrument desk is satisfied.
2. The longitudinal force transmission and the energy absorption of the vehicle body are realized through the longitudinal beam upper cover plate and the middle channel front reinforcing plate 2, the transverse force transmission and the energy absorption are realized through the combination of the seat cross beam 9 and the battery structure frame through the threshold, and the battery safety and the passenger safety are ensured in all directions.
Example 1
As shown in fig. 12, in the front floor assembly of the vehicle body provided in this embodiment, two seat cross beams 9 are provided, the structures of the two seat cross beams 9 are identical, the main section of the seat cross beam 9 adopts an M-shaped structure with a uniform section, and is made of a rolled super-strong plate, so that the lateral rigidity is good, the collision deformation and bending can be effectively prevented, the side column collision energy is transferred, the structural deformation of the floor assembly is effectively reduced, and the effect of protecting a battery and an occupant is achieved. The two seat cross beams 9 are of a fully universal design, and the seat and the auxiliary instrument panel mounting points are directly mounted on the two seat cross beams 9.
The vehicle body front floor assembly of the present embodiment may be adapted to an electric SUV or MPV vehicle type. The seat cross beam 9 adopts the design concepts of generalization, equal section and the like, so that the development cost can be effectively reduced, and the safety is good.
Example two
As shown in fig. 13, in the front floor assembly of the vehicle body provided in this embodiment, three seat cross beams 9 are provided, the three seat cross beams 9 have the same structure, the main section of the seat cross beam 9 adopts a uniform-section M-shaped structure, and is made of rolled super-strong plates, so that the lateral rigidity is good, the collision deformation and bending can be effectively prevented, the side column collision energy is transferred, the structural deformation of the floor assembly is effectively reduced, and the effect of protecting the battery and the passengers is achieved. The three seat cross beams 9 are of a fully universal design, and the seat and auxiliary instrument board sliding rail mounting points are directly mounted on the three seat cross beams 9.
The vehicle body front floor assembly of the present embodiment may be adapted to an electric SUV or MPV vehicle type. The seat cross beam 9 adopts the design concepts of generalization, equal section and the like, so that the development cost can be effectively reduced, and the safety is good.
In this embodiment, the seat mounted on the seat cross member 9 is a 180 ° rotary seat, the mounted sub-instrument panel is a slidable instrument panel, and the front, middle and rear mounting points of the seat and sub-instrument panel slide rails are respectively mounted on the front, middle and rear three seat cross members 9 in consideration of the configuration that the seat and the sub-instrument panel are both long slide rails. 4 seat mounting holes and 2 sliding instrument panel mounting holes are reserved on the seat cross beam 9.
Example III
As shown in fig. 14, in the vehicle body front floor assembly provided in this embodiment, two seat cross beams 9 are provided, the two seat cross beams 9 are respectively a front cross beam 3 and a rear cross beam 4, the main body section of the front cross beam 3 adopts a constant-section M-shaped structure (the section is a section perpendicular to the length direction of the front cross beam 3), the cross section of the rear cross beam 4 is a zigzag shape (the cross section is a section perpendicular to the length direction of the rear cross beam 4), the structure greatly increases the lateral rigidity of the vehicle body, can effectively collide with side pillars, protects passengers and a power battery pack, and can improve the collision safety. A plurality of mounting brackets are arranged on the front cross beam 3. The front longitudinal beam upper cover plate 1 and the middle channel front reinforcing plate 2 are positioned on one side of the front cross beam 3, and the rear cross beam 4 is positioned on the other side of the front cross beam 3.
The front beam 3 is formed by rolling a high-strength plate, and the top of the front beam is connected with a seat mounting bracket with a closed structure, two ends of the front beam 3 are provided with threshold connecting brackets, and the threshold connecting brackets are fixedly connected with a threshold body 501. The front cross beam 3 is fixedly connected with the front longitudinal beam upper cover plate 1, the floor body structure 7, the battery middle mounting structure 6 and the threshold body 501 through welding.
The main structure of the rear cross beam 4 is a closed section, the rear cross beam 4 is formed by rolling high-strength plates, the section of the rear cross beam 4 is of a Chinese character 'ri' -shaped structure, threshold connecting brackets are arranged at two ends of the rear cross beam 4, the rear cross beam 4 is fixedly connected with a threshold body 501 and a battery middle mounting structure 6 through spot welding, and the rear cross beam 4 is fixedly connected with a floor body structure 7 through welding.
The front floor assembly of the vehicle body of the embodiment can be suitable for an electric car type, the front seat mounting points are mounted on mounting brackets (4 brackets with universal structures) with closed cross sections on the front cross beam 3, and the rear seat mounting points are mounted on the rear cross beam 4.
The invention also provides a vehicle, which comprises the vehicle body front floor assembly with the structure. The vehicle is an electric vehicle type. The specific structure of the front floor assembly of the vehicle body can be referred to in fig. 1 to 14, and will not be described herein. Since the vehicle of the present invention includes the vehicle body front floor assembly in the above-described embodiment, it has all the advantages of the vehicle body front floor assembly described above.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (10)
1. Floor assembly before automobile body, including floor body structure, its characterized in that: the floor comprises a floor body structure, seat cross beams and front longitudinal beam upper cover plates, wherein the seat cross beams are arranged on the floor body structure, the front longitudinal beam upper cover plates are connected with the seat cross beams and the front cabin cross beams, and part of energy generated after collision is transmitted to the seat cross beams;
the front longitudinal beam upper cover plate is positioned in the passenger cabin, the front longitudinal beam upper cover plate is arranged at the front end of the floor body structure, the front longitudinal beam upper cover plate is positioned on the top surface of the floor body structure and is fixedly connected with the floor body structure, the floor body structure is horizontally arranged, the length direction of the floor body structure is parallel to the length direction of the vehicle body, and the width direction of the floor body structure is parallel to the width direction of the vehicle body;
one end of the front longitudinal beam upper cover plate is fixedly connected with the front cabin cross beam, the other end of the front longitudinal beam upper cover plate is fixedly connected with the seat cross beam, the front longitudinal beam upper cover plate and the front cabin cross beam are surrounded to form two cavity bodies, the two cavity bodies are respectively positioned above the first cavity body and the second cavity body, and the first cavity body and the second cavity body are box-shaped cavity bodies;
the length direction of the front cabin cross beam is parallel to the width direction of the floor body structure, the front cabin cross beam is fixedly connected with the end parts of all the front longitudinal beam upper cover plates, the front longitudinal beam upper cover plates are fixedly connected with the front cabin longitudinal beams, and the length direction of the front cabin longitudinal beams is parallel to the length direction of the floor body structure;
the front longitudinal beam upper cover plates are provided with a plurality of middle channel front reinforcing plates, the middle channel front reinforcing plates are located between two adjacent front longitudinal beam upper cover plates, the middle channel front reinforcing plates are located between the seat cross beam and the front cabin cross beam, one end of each middle channel front reinforcing plate is fixedly connected with the front cabin cross beam, and the other end of each middle channel front reinforcing plate is fixedly connected with the floor body structure.
2. The vehicle body front floor assembly according to claim 1, wherein: the cross section of the front longitudinal beam upper cover plate is M-shaped, and two cavity bodies are arranged in the front longitudinal beam upper cover plate.
3. The vehicle body front floor assembly according to claim 1, wherein: one end of the front longitudinal beam upper cover plate is connected with the front cabin cross beam, the other end of the front longitudinal beam upper cover plate is connected with the seat cross beam, and the front longitudinal beam upper cover plate and the front cabin cross beam are surrounded to form two cavity bodies.
4. A front floor assembly for a vehicle body according to any one of claims 1 to 3, wherein: the front longitudinal beam upper cover plates are arranged in a plurality, the middle channel front reinforcing plates are located between two adjacent front longitudinal beam upper cover plates, and the middle channel front reinforcing plates are connected with the front cabin cross beam so that part of energy generated after collision is transferred to the seat cross beam.
5. The vehicle body front floor assembly according to claim 4, wherein: the middle channel front reinforcing plate comprises a first side connecting part, a second side connecting part and an intermediate connecting part which is connected with the first side connecting part and the second side connecting part and is positioned between the first side connecting part and the second side connecting part, and the weight reducing hole is positioned between the first side connecting part and the second side connecting part.
6. A front floor assembly for a vehicle body according to any one of claims 1 to 3, wherein: the seat cross beams are arranged in two or three, and all the seat cross beams are sequentially arranged along the length direction of the floor body structure.
7. The vehicle body front floor assembly according to claim 6, wherein: the cross section of the main body of the seat cross beam adopts a uniform-section M-shaped structure and is made of a rolled super-strong plate.
8. The vehicle body front floor assembly according to claim 6, wherein: the seat cross beams are two, the two seat cross beams are a front cross beam and a rear cross beam respectively, the cross section of the rear cross beam is in a Chinese character 'ri' shape, and a plurality of mounting brackets are arranged on the front cross beam.
9. A front floor assembly for a vehicle body according to any one of claims 1 to 3, wherein: still including set up in two threshold structures on the floor body structure, the seat crossbeam is located between two threshold structures and the both ends of seat crossbeam are connected with two threshold structures respectively, and threshold structure includes threshold body and threshold stiffening beam, and the cross section of threshold body is the U-shaped, and the cross section of threshold stiffening beam is the order font.
10. The vehicle is characterized in that: a front floor assembly for a vehicle body comprising any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850110.1A CN115009380B (en) | 2022-07-19 | 2022-07-19 | Front floor structure of vehicle body and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850110.1A CN115009380B (en) | 2022-07-19 | 2022-07-19 | Front floor structure of vehicle body and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115009380A CN115009380A (en) | 2022-09-06 |
| CN115009380B true CN115009380B (en) | 2024-03-01 |
Family
ID=83082768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210850110.1A Active CN115009380B (en) | 2022-07-19 | 2022-07-19 | Front floor structure of vehicle body and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115009380B (en) |
Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001030954A (en) * | 1999-07-21 | 2001-02-06 | Nissan Motor Co Ltd | Front part structure of automobile body |
| JP2001114136A (en) * | 1999-10-19 | 2001-04-24 | Nissan Motor Co Ltd | Car body structure of automobile |
| JP2005145177A (en) * | 2003-11-13 | 2005-06-09 | Fuji Heavy Ind Ltd | Gas fuel vehicle |
| DE102008027199A1 (en) * | 2008-06-06 | 2009-12-10 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Cross bracing structure for vehicle, comprises two cross beams with upward opening guiding contour which extends from B-column of vehicle to transmission tunnel running in vehicle longitudinal direction |
| CN201626483U (en) * | 2010-01-22 | 2010-11-10 | 奇瑞汽车股份有限公司 | Automobile front floor assembly |
| CN102358349A (en) * | 2011-08-11 | 2012-02-22 | 奇瑞汽车股份有限公司 | Front body framework structure of automobile |
| JP2013147137A (en) * | 2012-01-19 | 2013-08-01 | Mitsubishi Motors Corp | Floor structure of electrically driven vehicle |
| CN203358689U (en) * | 2013-05-31 | 2013-12-25 | 奇瑞汽车股份有限公司 | Vehicle body collision energy absorbing structure |
| CN204037691U (en) * | 2014-06-25 | 2014-12-24 | 华晨汽车集团控股有限公司 | Front floor of electric vehicle assembly structure |
| CN205440221U (en) * | 2015-12-22 | 2016-08-10 | 陕西通家汽车股份有限公司 | Multi -purpose vehicle(MPV) plate |
| CN206510988U (en) * | 2016-11-29 | 2017-09-22 | 宝山钢铁股份有限公司 | Passage in a kind of Varying-thickness automobile |
| CN207015455U (en) * | 2017-06-30 | 2018-02-16 | 奇瑞汽车股份有限公司 | A kind of side impact Floor frame structure |
| CN208181182U (en) * | 2018-03-30 | 2018-12-04 | 比亚迪股份有限公司 | Beam structure, preceding floor assembly and vehicle |
| CN109334782A (en) * | 2018-11-30 | 2019-02-15 | 安徽江淮汽车集团股份有限公司 | The protection body frame structure of battery after a kind of pure electric vehicle |
| KR20190084523A (en) * | 2018-01-08 | 2019-07-17 | 현대자동차주식회사 | Side vehicle body reinforcing structure |
| CN209126825U (en) * | 2018-11-12 | 2019-07-19 | 广州汽车集团股份有限公司 | A middle tunnel assembly, body frame structure and vehicle |
| WO2019185030A1 (en) * | 2018-03-30 | 2019-10-03 | 比亚迪股份有限公司 | Front floor assembly, and automobile |
| CN110316258A (en) * | 2018-03-30 | 2019-10-11 | 比亚迪股份有限公司 | Preceding floor panel structure, preceding floor assembly and vehicle |
| CN209739156U (en) * | 2018-12-24 | 2019-12-06 | 阿尔特汽车技术股份有限公司 | Automobile body roof beam structure under electronic passenger car |
| CN111017041A (en) * | 2019-12-31 | 2020-04-17 | 东风汽车集团有限公司 | A pure electric vehicle front floor reinforcing beam structure and its body mounting structure |
| CN111038599A (en) * | 2018-10-15 | 2020-04-21 | 宝沃汽车（中国）有限公司 | Floor structure and vehicle |
| CN210364088U (en) * | 2019-08-08 | 2020-04-21 | 宜宾凯翼汽车有限公司 | Electric automobile front floor assembly |
| CN111098936A (en) * | 2019-12-19 | 2020-05-05 | 中国第一汽车股份有限公司 | Side post hits automobile body protection architecture |
| DE102018132167A1 (en) * | 2018-12-13 | 2020-06-18 | Thyssenkrupp Steel Europe Ag | Vehicle floor structure |
| CN111391920A (en) * | 2018-12-30 | 2020-07-10 | 长城汽车股份有限公司 | Electric non-bearing vehicle body |
| CN111391926A (en) * | 2019-01-02 | 2020-07-10 | 东风小康汽车有限公司重庆分公司 | A kind of automobile front wall reinforcement structure and automobile |
| CN211336198U (en) * | 2019-11-29 | 2020-08-25 | 比亚迪股份有限公司 | Front floor assembly structure and vehicle with same |
| CN112172933A (en) * | 2020-10-15 | 2021-01-05 | 上海锐镁新能源科技有限公司 | Floor structure before automobile body |
| CN112373576A (en) * | 2020-03-31 | 2021-02-19 | 上汽通用五菱汽车股份有限公司 | Front floor assembly structure |
| CN212950858U (en) * | 2020-06-11 | 2021-04-13 | 一汽奔腾轿车有限公司 | Front floor structure protected by new energy battery |
| CN213035914U (en) * | 2020-06-09 | 2021-04-23 | 北京新能源汽车股份有限公司 | Front floor structure of vehicle and vehicle |
| CN216070194U (en) * | 2021-06-03 | 2022-03-18 | 奇瑞新能源汽车股份有限公司 | Electric automobile's bottom end rail assembly and electric automobile |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10232841A1 (en) * | 2002-07-19 | 2004-02-05 | Volkswagen Ag | Floor support arrangement on motor vehicles |
| JP4690450B2 (en) * | 2008-12-19 | 2011-06-01 | 本田技研工業株式会社 | Body floor structure |
| US8979173B2 (en) * | 2012-03-29 | 2015-03-17 | Honda Motor Co., Ltd. | Vehicle body floor structure for automobile |
-
2022
- 2022-07-19 CN CN202210850110.1A patent/CN115009380B/en active Active
Patent Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001030954A (en) * | 1999-07-21 | 2001-02-06 | Nissan Motor Co Ltd | Front part structure of automobile body |
| JP2001114136A (en) * | 1999-10-19 | 2001-04-24 | Nissan Motor Co Ltd | Car body structure of automobile |
| JP2005145177A (en) * | 2003-11-13 | 2005-06-09 | Fuji Heavy Ind Ltd | Gas fuel vehicle |
| DE102008027199A1 (en) * | 2008-06-06 | 2009-12-10 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Cross bracing structure for vehicle, comprises two cross beams with upward opening guiding contour which extends from B-column of vehicle to transmission tunnel running in vehicle longitudinal direction |
| CN201626483U (en) * | 2010-01-22 | 2010-11-10 | 奇瑞汽车股份有限公司 | Automobile front floor assembly |
| CN102358349A (en) * | 2011-08-11 | 2012-02-22 | 奇瑞汽车股份有限公司 | Front body framework structure of automobile |
| JP2013147137A (en) * | 2012-01-19 | 2013-08-01 | Mitsubishi Motors Corp | Floor structure of electrically driven vehicle |
| CN203358689U (en) * | 2013-05-31 | 2013-12-25 | 奇瑞汽车股份有限公司 | Vehicle body collision energy absorbing structure |
| CN204037691U (en) * | 2014-06-25 | 2014-12-24 | 华晨汽车集团控股有限公司 | Front floor of electric vehicle assembly structure |
| CN205440221U (en) * | 2015-12-22 | 2016-08-10 | 陕西通家汽车股份有限公司 | Multi -purpose vehicle(MPV) plate |
| CN206510988U (en) * | 2016-11-29 | 2017-09-22 | 宝山钢铁股份有限公司 | Passage in a kind of Varying-thickness automobile |
| CN207015455U (en) * | 2017-06-30 | 2018-02-16 | 奇瑞汽车股份有限公司 | A kind of side impact Floor frame structure |
| KR20190084523A (en) * | 2018-01-08 | 2019-07-17 | 현대자동차주식회사 | Side vehicle body reinforcing structure |
| WO2019185030A1 (en) * | 2018-03-30 | 2019-10-03 | 比亚迪股份有限公司 | Front floor assembly, and automobile |
| CN208181182U (en) * | 2018-03-30 | 2018-12-04 | 比亚迪股份有限公司 | Beam structure, preceding floor assembly and vehicle |
| CN110316258A (en) * | 2018-03-30 | 2019-10-11 | 比亚迪股份有限公司 | Preceding floor panel structure, preceding floor assembly and vehicle |
| CN111038599A (en) * | 2018-10-15 | 2020-04-21 | 宝沃汽车（中国）有限公司 | Floor structure and vehicle |
| CN209126825U (en) * | 2018-11-12 | 2019-07-19 | 广州汽车集团股份有限公司 | A middle tunnel assembly, body frame structure and vehicle |
| CN109334782A (en) * | 2018-11-30 | 2019-02-15 | 安徽江淮汽车集团股份有限公司 | The protection body frame structure of battery after a kind of pure electric vehicle |
| DE102018132167A1 (en) * | 2018-12-13 | 2020-06-18 | Thyssenkrupp Steel Europe Ag | Vehicle floor structure |
| CN209739156U (en) * | 2018-12-24 | 2019-12-06 | 阿尔特汽车技术股份有限公司 | Automobile body roof beam structure under electronic passenger car |
| CN111391920A (en) * | 2018-12-30 | 2020-07-10 | 长城汽车股份有限公司 | Electric non-bearing vehicle body |
| CN111391926A (en) * | 2019-01-02 | 2020-07-10 | 东风小康汽车有限公司重庆分公司 | A kind of automobile front wall reinforcement structure and automobile |
| CN210364088U (en) * | 2019-08-08 | 2020-04-21 | 宜宾凯翼汽车有限公司 | Electric automobile front floor assembly |
| CN211336198U (en) * | 2019-11-29 | 2020-08-25 | 比亚迪股份有限公司 | Front floor assembly structure and vehicle with same |
| CN111098936A (en) * | 2019-12-19 | 2020-05-05 | 中国第一汽车股份有限公司 | Side post hits automobile body protection architecture |
| CN111017041A (en) * | 2019-12-31 | 2020-04-17 | 东风汽车集团有限公司 | A pure electric vehicle front floor reinforcing beam structure and its body mounting structure |
| CN112373576A (en) * | 2020-03-31 | 2021-02-19 | 上汽通用五菱汽车股份有限公司 | Front floor assembly structure |
| CN213035914U (en) * | 2020-06-09 | 2021-04-23 | 北京新能源汽车股份有限公司 | Front floor structure of vehicle and vehicle |
| CN212950858U (en) * | 2020-06-11 | 2021-04-13 | 一汽奔腾轿车有限公司 | Front floor structure protected by new energy battery |
| CN112172933A (en) * | 2020-10-15 | 2021-01-05 | 上海锐镁新能源科技有限公司 | Floor structure before automobile body |
| CN216070194U (en) * | 2021-06-03 | 2022-03-18 | 奇瑞新能源汽车股份有限公司 | Electric automobile's bottom end rail assembly and electric automobile |
Non-Patent Citations (1)
| Title |
|---|
| 客车车身整体骨架强度与局部应力集中分析;周建兴;《中国优秀硕士学位论文全文数据库 工程科技II辑》(第3期);1-30 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115009380A (en) | 2022-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109204496B (en) | Vehicle body structure and vehicle | |
| CN109204527B (en) | Vehicle body structure and vehicle | |
| CN109204513B (en) | Vehicle body structure and vehicle | |
| CN218858529U (en) | Car body rear portion truss structure and car | |
| CN109204464B (en) | Vehicle body structure and vehicle | |
| CN107554621B (en) | Floor beam structure for vehicle | |
| CN215794047U (en) | Divide and carry beam structure in threshold | |
| CN115009380B (en) | Front floor structure of vehicle body and vehicle | |
| CN212401376U (en) | Automobile bottom plate structure and electric automobile | |
| CN221138321U (en) | Vehicle body and vehicle with same | |
| CN221049786U (en) | Vehicle body middle structure and vehicle | |
| CN107554619B (en) | A cabin installation frame structure and vehicle for vehicle | |
| CN205440543U (en) | Body frame and use its car | |
| CN219115574U (en) | Lower car body structure and car | |
| CN109204516B (en) | Vehicle body structure and vehicle | |
| US20240239411A1 (en) | Floor Structure for a Passenger Motor Vehicle and Modular System for a Body of a Motor Vehicle | |
| CN109204502B (en) | Vehicle body structure and vehicle | |
| CN214396955U (en) | Automobile, automobile body and front longitudinal beam assembly thereof | |
| CN109204495B (en) | Vehicle body structure and vehicle | |
| CN109204507B (en) | Vehicle body cross member and vehicle | |
| CN109204467B (en) | Vehicle body structure and vehicle | |
| CN109204522B (en) | Vehicle body structure and vehicle | |
| CN109204508B (en) | Body Structure and Vehicle | |
| CN109204519B (en) | Vehicle body structure and vehicle | |
| CN219584292U (en) | Vehicle body framework and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |