1. The utility model provides a floor assembly before electric automobile platform ization general type, its characterized in that, includes preceding floor body, front seat front beam structure, front seat rear beam structure, left battery package installation longeron, right battery package installation longeron, threshold roof beam assembly about front seat front beam structure and front seat rear beam structure overlap joint, and left battery package installation longeron corresponds the left and right sides that sets up in the front floor body below with right battery package installation longeron respectively, and cabin longeron and back floor longeron are connected respectively to left battery package installation longeron and the front and back both ends of right battery package installation longeron, the outside and the threshold roof beam overlap joint of left battery package installation longeron and right battery package installation longeron, wherein, preceding floor body is the flat structure of integral type.

2. The electric vehicle platformized universal front floor assembly according to claim 1, wherein the front seat front cross beam structure includes a front seat front cross beam body and front seat front cross beam connecting plates disposed at two ends of the front seat front cross beam body, the front seat front cross beam body has a cross section in a shape of "v", the front seat front cross beam connecting plate is a buckle plate, one side of the front seat front cross beam connecting plate is adapted to the cross section in the shape of "v" of the front seat front cross beam body and is fastened and fixed to the front seat front cross beam body, the front seat front cross beam connecting plate is welded and fixed to the front seat front cross beam body, and the other side of the front seat front cross beam connecting plate is fixedly connected to an inner sill of the vehicle.

3. The electric vehicle platformized universal front floor assembly according to claim 2, wherein the front seat front beam structure further includes a front seat front beam reinforcing plate, the front seat front beam reinforcing plate is disposed in a groove body at a lower portion of the front seat front beam body, a cross section of the front seat front beam reinforcing plate is also in a shape like a Chinese character 'ji', and a bottom flange of the front seat front beam reinforcing plate is attached to and welded to a bottom flange of the front seat front beam body.

4. The electric vehicle platformized universal front floor assembly according to claim 1, wherein the front seat rear cross beam structure includes a front seat rear cross beam body, a front seat rear cross beam connecting plate and a front seat rear cross beam reinforcing plate, the front seat rear cross beam connecting plate and the front seat rear cross beam reinforcing plate are disposed at two ends of the front seat rear cross beam body, the cross section of the front seat rear cross beam body is in a shape like a Chinese character ' ji ', the front seat rear cross beam connecting plate is a buckle plate, one side of the front seat rear cross beam connecting plate is matched with the cross section of the Chinese character ' ji ' of the front seat rear cross beam body and is fastened and fixed on the front seat rear cross beam body, the front seat rear cross beam connecting plate is welded and fixed with the front seat rear cross beam body, the other side of the front seat rear cross beam connecting plate is fixedly connected with the vehicle inner sill beam, the front seat rear cross beam reinforcing plate is disposed in a lower groove of the front seat rear cross beam body, and the cross section of the front seat rear cross beam reinforcing plate is also in a shape like ' ji And the bottom flanging of the front seat rear cross beam reinforcing plate is attached to and welded and fixed with the bottom flanging of the front seat rear cross beam body.

5. The electric vehicle platformized universal front floor assembly as set forth in any one of claims 1 to 5, wherein a central rear reinforcement beam is connected between said front seat front cross member structure and front seat rear cross member structure.

6. The electric vehicle platformized universal front floor assembly according to any one of claims 1 to 5, wherein a central front reinforcement beam is connected between the front seat front cross member structure and an outboard cabin assembly rear cross member.

Background

In the research of automobile bodies, the platformization and the light weight of the structural design of the automobile body are increasingly emphasized at present, and the platformization is one of the important strategies that can reduce the cost and improve the research and development efficiency of automobile manufacturers. The front floor assembly is an important component of an automobile body structure, and needs to meet the requirements of different automobile types and different automobile body widths in the development process of a platform new automobile type or a modified automobile type; there are also different seat forms, such as a normal seat, a hidden slide seat, a rotatable seat, etc. In order to solve the problems, the common front floor assembly is low in universality rate, and particularly, a seat cross beam is of a stamping forming structure, and the stamping forming is characterized in that a stamping die is fixed, so that the defects that the development period is long, the manufacturing cost is high, the targeted timely adjustment cannot be performed according to market needs and the like are caused.

In addition, the front seat cross beam in the front floor assembly is an important part of an automobile body structure, is a key force transmission path part for automobile side impact or frontal impact, and can transmit force without large deformation during the automobile side impact or frontal impact due to high rigidity and strength, so that serious injury to passengers in the automobile is avoided. The traditional automobile seat beam is heavy in assembly weight, automobile cost is increased, and the requirement for light weight of an automobile cannot be met.

Therefore, a front floor assembly with a platform, light weight, simple structure and excellent performance is a technical problem to be solved urgently in research and development work at present.

Disclosure of Invention

The invention aims to provide a platform-based universal front floor assembly of an electric vehicle, which can realize one hundred percent of platform generalization rate, ensure that the front floor assembly is completely borrowed in different platform-based vehicle types, is beneficial to reducing the development cost of new vehicle types or vehicle types to be changed, shorten the development period of the new vehicle types or vehicle types to be changed, is convenient for managing and controlling parts and saves the production and manufacturing cost.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a flatbed universal front floor assembly of an electric automobile, which comprises a front floor body, a front seat front cross beam structure, a front seat rear cross beam structure, a left battery pack mounting longitudinal beam and a right battery pack mounting longitudinal beam, wherein the front seat front cross beam structure and the front seat rear cross beam structure are lapped with a left threshold beam assembly and a right threshold beam assembly, the left battery pack mounting longitudinal beam and the right battery pack mounting longitudinal beam are respectively and correspondingly arranged on the left side and the right side below the front floor body, the front end and the rear end of the left battery pack mounting longitudinal beam and the front end and the rear end of the right battery pack mounting longitudinal beam are respectively connected with an engine room longitudinal beam and a rear floor longitudinal beam, the outer sides of the left battery pack mounting longitudinal beam and the right battery pack mounting longitudinal beam are lapped with the threshold beams, and the front floor body is an integrated flat structural member.

For the above technical solution, the applicant has further optimization measures.

Optionally, the front seat front beam structure comprises a front seat front beam body and front seat front beam connecting plates arranged at two ends of the front seat front beam body, the cross section of the front seat front beam body is shaped like a Chinese character 'ji', the front seat front beam connecting plates are buckle plates, one side of each front seat front beam connecting plate is matched with the section of the Chinese character 'ji' of the front seat front beam body and is fastened and fixed on the front seat front beam body, the front seat front beam connecting plates are welded and fixed with the front seat front beam body, and the other side of each front seat front beam connecting plate is fixedly connected with the threshold beam in the automobile.

Furthermore, the front seat front beam structure further comprises a front seat front beam reinforcing plate, the front seat front beam reinforcing plate is arranged in a groove body at the lower part of the front seat front beam body, the cross section of the front seat front beam reinforcing plate is also in a shape like a Chinese character 'ji', and the bottom flanging of the front seat front beam reinforcing plate is attached to and welded and fixed with the bottom flanging of the front seat front beam body.

Optionally, the front seat rear cross beam structure comprises a front seat rear cross beam body, a front seat rear cross beam connecting plate and a front seat rear cross beam reinforcing plate, wherein the front seat rear cross beam connecting plate and the front seat rear cross beam reinforcing plate are arranged at two end parts of the front seat rear cross beam body, the cross section of the front seat rear cross beam body is in a shape like a Chinese character 'ji', the front seat rear cross beam connecting plate is a buckle plate, one side of the front seat rear cross beam connecting plate is matched with the section of the Chinese character 'ji' of the front seat rear cross beam body and is fixedly buckled on the front seat rear cross beam body, the front seat rear cross beam connecting plate is fixedly welded with the front seat rear cross beam body, the other side of the front seat rear cross beam connecting plate is fixedly connected with the automobile inner doorsill beam, the front seat rear cross beam reinforcing plate is arranged in the groove body at the lower part of the front seat rear cross beam body, and the cross section of the front seat rear cross beam reinforcing plate is also in a shape like 'ji', and the bottom flanging of the front seat rear cross beam reinforcing plate is attached to and welded and fixed with the bottom flanging of the front seat rear cross beam body.

Further, a central rear reinforcement beam is connected between the front seat front cross beam structure and the front seat rear cross beam structure.

Furthermore, a central front stiffening beam is connected between the front seat front cross beam structure and the outboard nacelle assembly rear cross beam.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the electric automobile platform universal front floor assembly provided by the invention cancels a central channel assembly in the traditional front floor assembly, realizes the concept of a 'flat floor', increases the space of passengers, is more comfortable and convenient, improves the rigidity/strength of the front floor assembly, increases the force dispersion path in the side impact/head impact process, and improves the safety performance of the whole automobile.

Further, seat crossbeam structure in front floor assembly of this application, seat crossbeam body and both ends seat crossbeam connecting plate are welded fastening, add man-hour independent processing, nevertheless accord with the theory of car "flat floor" after the equipment, seat crossbeam connecting plate has played the effect of connecting seat crossbeam body and interior threshold roof beam, and seat crossbeam connecting plate adopts the universalization design, threshold roof beam assembly about the both ends seat crossbeam connecting plate overlap joint of seat crossbeam, seat crossbeam assembly is realized according to the hole site change on the different accessible seat crossbeam bodies in platformization seat mounting point position. So the seat crossbeam can realize that the platform universalization rate is hundred percent, the width change of platformization automobile body can be realized by the width change of interior threshold roof beam, the hole site that the seat mounting point of the car of the different seat number of the same motorcycle type (containing SEDAN, SUV, CUV, MPV) and the same motorcycle type changes the accessible seat crossbeam body of position changes and realizes, and because the split type structure that the seat crossbeam adopted, can process seat crossbeam body and seat crossbeam connecting plate alone respectively, the seat crossbeam body adopts super-strength hot forming steel material, simple structure can adopt hot-rolling forming technique, bend once only processing completion many times through heating, guaranteed that the seat crossbeam borrows completely at different motorcycle types of platformization like this, moreover, the steam generator is simple in structure, the platformization requirement of car has been satisfied, intensity and rigidity are reliable, the security is high, the.

The floor assembly can realize the universalization of different motorcycle types of platformization (including SEDAN, SUV, CUV, MPV) different seat numbers (including 3, 4, 5, 6, 7) in the automobile body structure before this application, and preceding seat front beam structure is unanimous with preceding seat rear beam structure Z to the height, has realized the installation of hidden long slide rail seat, vice rotatable formula seat of driving simultaneously. The front floor assembly not only meets the platform requirement of the new energy electric automobile, reduces the development cost of new vehicles or modified vehicles, shortens the development period of new vehicles or modified vehicles, facilitates the management and control of parts, saves the production and manufacturing cost, provides a space and a platform for intelligent cabin design, and improves the comfort of drivers and passengers.

In addition, the rolling forming technology is adopted, so that the mold cost and the part manufacturing cost of the seat beam body are greatly reduced, the processing technology is simplified, the automobile production efficiency is improved, the labor and time cost are saved, and the seat beam has the characteristics of high practicability, high popularization performance and the like; the installation of different motorcycle types and different types of seats of platformization has been realized, the requirement of vehicle collision law and automobile body lightweight has been satisfied. Moreover, the strength and the rigidity of the vehicle body are improved by the seat cross beam reinforcing plate, the side impact resistance is improved, and the safety of the vehicle body is enhanced.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural diagram of a vehicle flatbed universal front floor assembly according to one embodiment of the present invention;

fig. 2 is a schematic structural diagram of the automobile platformized universal front floor assembly shown in fig. 1.

Wherein the reference numerals are as follows:

1. a front floor body;

2. a central front stiffening beam;

3. a central rear stiffening beam;

4. the front seat front cross beam structure 41, a front seat front cross beam body 42, a front seat front cross beam connecting plate 43 and a seat front mounting nut plate component;

5. the structure comprises a front seat rear cross beam structure 51, a front seat rear cross beam body 52, a front seat rear cross beam connecting plate 53, a seat rear mounting nut plate component 54 and a front seat rear cross beam reinforcing plate;

6. the left battery pack is provided with a longitudinal beam;

7. and the longitudinal beam is installed on the right battery pack.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiment describes a flatbed universal front floor assembly of an electric vehicle, as shown in fig. 1, the flatbed universal front floor assembly comprises a front floor body 1, a front seat front cross beam structure 4, a front seat rear cross beam structure 5, a left battery pack mounting longitudinal beam 6 and a right battery pack mounting longitudinal beam 7, the front seat front cross beam structure 4 and the front seat rear cross beam structure 5 are in lap joint with a left threshold beam assembly and a right threshold beam assembly, the left battery pack mounting longitudinal beam 6 and the right battery pack mounting longitudinal beam 7 are respectively and correspondingly arranged on the left side and the right side below the front floor body 1, the front end and the rear end of the left battery pack mounting longitudinal beam 6 and the front end and the rear end of the right battery pack mounting longitudinal beam 7 are respectively connected with a cabin longitudinal beam and a rear floor longitudinal beam, the outer sides of the left battery pack mounting longitudinal beam 6 and the right battery pack mounting longitudinal beam 7 are in lap joint with the threshold beams, and the front floor body 1 is an integrated flat plate-shaped structural member.

As shown in fig. 2, the front seat front cross member structure 4 includes a front seat front cross member body 41 and front seat front cross member connecting plates 42 disposed at two end portions of the front seat front cross member body 41, the cross section of the front seat front cross member body 41 is shaped like a Chinese character 'ji', the front seat front cross member connecting plates 42 are buckle members, one side of the front seat front cross member connecting plates 42 is adapted to the section shaped like a Chinese character 'ji' of the front seat front cross member body 41 and is fastened and fixed to the front seat front cross member body 41, the front seat front cross member connecting plates 42 are welded and fixed to the front seat front cross member body 41, and the other side of the front seat front cross member connecting plates 42 is fixedly connected to the rocker beam in the vehicle. A plurality of groups of seat mounting holes are formed in the front seat front cross beam body 41, seat front mounting nut plate assemblies 43 are respectively welded and fixed on the inner surface of the front seat front cross beam body 41 corresponding to each group of seat mounting holes, and the seat front mounting nut plate assemblies 43 are arranged in a groove body on the lower portion of the front seat front cross beam body 41.

In consideration of collision safety, the front-seat rear cross beam structure 5 directly adopts a reinforced cross beam structure, and specifically, the front-seat rear cross beam structure 5 includes a front-seat rear cross beam body 51, a front-seat rear cross beam connecting plate 52 and a front-seat rear cross beam reinforcing plate 54 that are disposed at two end portions of the front-seat rear cross beam body 51, the cross section of the front-seat rear cross beam body 51 is in a shape like a Chinese character 'ji', the front-seat rear cross beam connecting plate 52 is a buckle plate, one side of the front-seat rear cross beam connecting plate 52 is adapted to the cross section of the front-seat rear cross beam body 51 and is fastened and fixed on the front-seat rear cross beam body 51, the front-seat rear cross beam connecting plate 52 is welded and fixed to the front-seat rear cross beam body 51, the other side of the front-seat rear cross beam connecting plate 52 is fixedly connected to the car inner sill beam, and the front-seat rear cross beam reinforcing plate 54 is disposed in a lower groove body of the front-seat rear cross beam body 51 and is disposed at the front-seat rear cross beam body 51 The cross section of the front seat rear cross beam reinforcing plate 54 is also in a shape like a Chinese character 'ji', and the bottom flange of the front seat rear cross beam reinforcing plate 54 is attached to and welded to the bottom flange of the front seat rear cross beam body 51. The front seat rear cross beam body 51 is provided with a plurality of groups of seat mounting holes, seat rear mounting nut plate assemblies 53 are respectively welded and fixed on the inner surface of the front seat rear cross beam body 51 corresponding to each group of seat mounting holes, the seat rear mounting nut plate assemblies 53 are arranged in a groove body on the lower portion of the front seat rear cross beam body 51, and the seat rear mounting nut plate assemblies 53 are clamped between the inner surface of the front seat rear cross beam body 51 and the outer surface of the front seat rear cross beam reinforcing plate 54.

In order to further improve the strength of the front seat front cross beam structure 4, the front seat front cross beam structure 4 further includes a front seat front cross beam reinforcing plate, that is, a reinforcing structure such as the front seat rear cross beam structure 5 in fig. 2 is adopted, and the front seat front cross beam structure 4 is not shown in fig. 2, and reference may be made to the front seat rear cross beam structure 5. The front seat front beam reinforcing plate is arranged in a groove body at the lower part of the front seat front beam body 41, the cross section of the front seat front beam reinforcing plate is also in a shape like a Chinese character 'ji', and the bottom flanging of the front seat front beam reinforcing plate is attached to and welded and fixed with the bottom flanging of the front seat front beam body 41.

In order to better explain the features and advantages of the front seat front cross member structure 4 and the front seat rear cross member structure 5, they will be collectively referred to as a seat cross member structure, a seat cross member body, and a seat cross member connecting plate. Seat crossbeam structure in front floor assembly of this embodiment, seat crossbeam body and both ends seat crossbeam connecting plate are welded fastening, add man-hour and independently process, nevertheless accord with the theory of car "flat floor" after the equipment, seat crossbeam connecting plate has played the effect of connecting seat crossbeam body and interior threshold roof beam, and seat crossbeam connecting plate adopts the universalization design, threshold roof beam assembly about the both ends seat crossbeam connecting plate overlap joint of seat crossbeam, seat crossbeam assembly realizes according to the hole site change on the different accessible seat crossbeam bodies of platformization seat mounting point position. So the seat crossbeam can realize that the platform universalization rate is hundred percent, the width change of platformization automobile body can be realized by the width change of interior threshold roof beam, the hole site that the seat mounting point of the car of the different seat number of the same motorcycle type (containing SEDAN, SUV, CUV, MPV) and the same motorcycle type changes the accessible seat crossbeam body of position changes and realizes, and because the split type structure that the seat crossbeam adopted, can process seat crossbeam body and seat crossbeam connecting plate alone respectively, the seat crossbeam body adopts super-strength hot forming steel material, simple structure can adopt hot-rolling forming technique, bend once only processing completion many times through heating, guaranteed that the seat crossbeam borrows completely at different motorcycle types of platformization like this, moreover, the steam generator is simple in structure, the platformization requirement of car has been satisfied, intensity and rigidity are reliable, the security is high, the.

In order to improve the overall connection rigidity and strength, a central rear reinforcement beam 3 is connected between the front seat front cross member structure 4 and the front seat rear cross member structure 5, and a central front reinforcement beam 2 is connected between the front seat front cross member structure 4 and the outboard cabin assembly rear cross member.

The electric automobile platform universal front floor assembly of the embodiment cancels a central channel assembly in the traditional front floor assembly, realizes the concept of a flat floor, increases the space of passengers, is more comfortable and convenient, improves the rigidity/strength of the front floor assembly, increases the force dispersion path in the side impact/head impact process, and improves the safety performance of the whole automobile.

The front floor assembly can realize the universalization of different vehicle types (including SEDAN, SUV, CUV and MPV) and different seat numbers (including 3 seats, 4 seats, 5 seats, 6 seats and 7 seats) in a platform manner in a vehicle body structure, and meanwhile, the front cross beam structure 4 of the front seat is consistent with the rear cross beam structure 5Z-direction height of the front seat, so that the installation of a hidden long slide rail seat and a secondary driving rotatable seat is realized. The front floor assembly not only meets the platform requirement of the new energy electric automobile, reduces the development cost of new vehicles or modified vehicles, shortens the development period of new vehicles or modified vehicles, facilitates the management and control of parts, saves the production and manufacturing cost, provides a space and a platform for intelligent cabin design, and improves the comfort of drivers and passengers.

In addition, the rolling forming technology is adopted, so that the mold cost and the part manufacturing cost of the seat beam body are greatly reduced, the processing technology is simplified, the automobile production efficiency is improved, the labor and time cost are saved, and the seat beam has the characteristics of high practicability, high popularization performance and the like; the installation of different motorcycle types and different types of seats of platformization has been realized, the requirement of vehicle collision law and automobile body lightweight has been satisfied. Moreover, the strength and the rigidity of the vehicle body are improved by the seat cross beam reinforcing plate, the side impact resistance is improved, and the safety of the vehicle body is enhanced.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.