CN209739156U - Automobile body roof beam structure under electronic passenger car - Google Patents
Automobile body roof beam structure under electronic passenger car Download PDFInfo
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- CN209739156U CN209739156U CN201822172820.5U CN201822172820U CN209739156U CN 209739156 U CN209739156 U CN 209739156U CN 201822172820 U CN201822172820 U CN 201822172820U CN 209739156 U CN209739156 U CN 209739156U
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Abstract
The utility model relates to an automobile body roof beam structure under electronic passenger car belongs to the technical field of automobile design and manufacturing. The utility model discloses an automobile body roof beam structure under electronic passenger car comprises left front longitudinal assembly, right front longitudinal assembly, left front longitudinal back connecting plate assembly, right front longitudinal back connecting plate assembly, left threshold inner panel assembly, right threshold inner panel assembly, left back longitudinal assembly, right back longitudinal assembly, back floor front beam, back floor rear beam, preceding enclosing the bottom end rail upper plate and preceding enclosing the bottom end rail hypoplastron. The utility model discloses an electronic passenger car lower body roof beam structure has realized the lightweight of body structure and has optimized the collision security of automobile body, is showing the space of arranging that has increased the power battery package moreover, has increased the continuation of the journey mileage, is favorable to promoting the market competition of electric motor car.
Description
Technical Field
The utility model relates to a technical field of automobile design and manufacturing, more specifically says, the utility model relates to a body roof beam structure under electronic passenger car.
background
Fig. 1 shows a top view of a lower body beam structure (arrow direction is vehicle rear direction) which is common in the prior art: the longitudinal beam is through from front to back, and the longitudinal beam is connected with the sill inner plate through a plurality of supports or small cross beams, and the structure below the front floor is more, the weight is large, and the cost of the vehicle body is higher. Fig. 2 is a schematic view of a disassembled structure, and table 1 shows names of components corresponding to respective serial numbers. The structures in the boxed area of fig. 1 are shown in detail in serial numbers 7 and 8, 11 and 12, and 13 and 14 in fig. 2.
TABLE 1
| Serial number | Name (R) | Serial number | Name (R) |
| 1 | Left front longitudinal beam assembly | 12 | Rear support bracket of right doorsill |
| 2 | Right front longitudinal beam assembly | 13 | Left front floor longitudinal beam assembly |
| 3 | Left front longitudinal beam rear connecting plate | 14 | Right front floor longitudinal beam assembly |
| 4 | Right front longitudinal beam rear connecting plate | 15 | Left doorsill inner plate rear-section assembly |
| 5 | Left A pillar lower inner plate assembly | 16 | Right doorsill inner plate rear-section assembly |
| 6 | Right A pillar lower inner plate assembly | 17 | Left rear longitudinal beam assembly |
| 7 | Left doorsill front support | 18 | Right rear longitudinal beam assembly |
| 8 | Front support bracket of right doorsill | 19 | Rear floor lower beam assembly |
| 9 | Left doorsill inner plate assembly | 20 | Middle floor lower beam assembly |
| 10 | Right doorsill inner plate assembly | 21 | Front wall beam assembly |
| 11 | Left doorsill rear support bracket |
In the lower body beam frame structure shown in fig. 1, the distance between the rear ends of the left front longitudinal beam and the right front longitudinal beam is small, and the distance between the front ends of the left rear longitudinal beam and the right rear longitudinal beam is relatively large, so that the region enclosed by the longitudinal beams below the front floor is trapezoidal, and the trapezoidal space is not beneficial to the maximized arrangement of square electric cores.
In the lower body beam frame structure shown in fig. 1, only a brake line is arranged in a region between a front floor longitudinal beam and a sill inner plate, other arrangement functions are not provided, the region is not fully utilized to expand the electric quantity of a battery pack, and the region has no obvious competitiveness in the aspect of driving range when being used as a pure electric vehicle.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem in the prior art, the utility model aims to provide an electronic passenger car lower body beam structure.
The utility model discloses an automobile body roof beam structure under electronic passenger car, its characterized in that: the device is composed of a left front longitudinal beam assembly, a right front longitudinal beam assembly, a left front longitudinal beam rear connecting plate assembly, a right front longitudinal beam rear connecting plate assembly, a left threshold inner plate assembly, a right threshold inner plate assembly, a left rear longitudinal beam assembly, a right rear longitudinal beam assembly, a rear floor front cross beam, a rear floor rear cross beam, a front wall lower cross beam upper plate and a front wall lower cross beam lower plate; the left front longitudinal beam assembly is welded and fixed with the left front longitudinal beam rear connecting plate assembly, and the left front longitudinal beam rear connecting plate assembly is welded and fixed with the front end of the left threshold inner plate assembly; the right front longitudinal beam assembly is welded and fixed with the right front longitudinal beam rear connecting plate assembly, and the right front longitudinal beam rear connecting plate assembly is welded and fixed with the front end of the right threshold inner plate assembly; the front wall lower cross beam upper plate and the rear wall lower cross beam upper plate are welded into a front wall plate with a cavity structure, the front wall plate is welded at the rear side of the left front longitudinal beam rear connecting plate assembly and the right front longitudinal beam rear connecting plate assembly, and two ends of the front wall plate are respectively welded and fixed with the front ends of the left threshold inner plate assembly and the right threshold inner plate assembly; the rear end of the left doorsill inner plate assembly is welded and fixed with the left rear longitudinal beam assembly, and the rear end of the right doorsill inner plate assembly is welded and fixed with the right rear longitudinal beam assembly; and the left rear longitudinal beam assembly and the right rear longitudinal beam assembly are fixedly welded through a rear floor front cross beam and a rear floor rear cross beam.
Compared with the prior art, the utility model discloses an electronic passenger car lower body roof beam structure has following beneficial effect:
The utility model discloses an electronic passenger car lower body roof beam structure has realized the lightweight of body structure and has optimized the collision security of automobile body, is showing the space of arranging that has increased the power battery package moreover, has increased the continuation of the journey mileage, is favorable to promoting the market competition of electric motor car.
Drawings
Fig. 1 is a schematic structural view of a conventional underbody beam structure of an electric passenger vehicle.
Fig. 2 is a disassembled structural schematic view of the lower body beam structure of the electric passenger vehicle in fig. 1.
Fig. 3 is a schematic top view of the lower body beam structure of the electric passenger vehicle of the present invention.
Fig. 4 is a disassembled structural schematic view of the lower body beam structure of the electric passenger car in fig. 3.
Fig. 5 is a sectional view along a direction a-a of fig. 3.
fig. 6 is a schematic diagram of a cell arrangement structure of an electric passenger vehicle in the prior art.
Fig. 7 is the utility model provides an electric passenger car electricity core arrangement structure sketch map.
Detailed Description
It is right to combine specific embodiment below the utility model discloses a body roof beam structure does further explanation under electronic passenger car to help technical staff in this field to be right the utility model discloses a design, technical scheme have more complete, accurate and deep understanding.
Example 1
As shown in fig. 3-5, the lower body beam structure of the electric passenger vehicle of the embodiment is designed into an H shape, a front floor longitudinal beam assembly is omitted, and the position of a rear connecting plate of the front longitudinal beam is reinforced according to the requirements of collision and vehicle body rigidity. Specifically, the beam frame structure of the lower body of the electric passenger vehicle in the present embodiment is composed of a left front side member assembly 31, a right front side member assembly 32, a left front side member rear connecting plate assembly 41, a right front side member rear connecting plate assembly 42, a left rocker inner plate assembly 51, a right rocker inner plate assembly 52, a left rear side member assembly 61, a right rear side member assembly 62, a rear floor front cross member 71, a rear floor rear cross member 72, a front wall lower cross member upper plate 81, and a front wall lower cross member lower plate 82. The left front longitudinal beam assembly 31 is welded and fixed with a left front longitudinal beam rear connecting plate assembly 41, and the left front longitudinal beam rear connecting plate assembly 41 is welded and fixed with the front end of the left threshold inner plate assembly 51; the right front longitudinal beam assembly 32 and the right front longitudinal beam rear connecting plate assembly 42 are welded and fixed, and the right front longitudinal beam rear connecting plate assembly 42 and the front end of the right threshold inner plate assembly 52 are welded and fixed. The front wall lower cross beam upper plate 81 and the rear wall lower cross beam upper plate 82 are welded to form a front wall plate with a cavity structure, the front wall plate is welded to the rear side of the left front longitudinal beam rear connecting plate assembly 41 and the right front longitudinal beam rear connecting plate assembly 42, and two ends of the front wall plate are respectively welded and fixed with the front ends of the left threshold inner plate assembly 51 and the right threshold inner plate assembly 52; the rear end of the left rocker inner plate assembly 51 is welded and fixed with the left rear longitudinal beam assembly 61, and the rear end of the right rocker inner plate assembly 52 is welded and fixed with the right rear longitudinal beam assembly 62. The left rear longitudinal beam assembly 61 and the right rear longitudinal beam assembly 62 are welded and fixed through a rear floor front cross beam 71 and a rear floor rear cross beam 72.
In the embodiment, the position and the section form of the front longitudinal beam are consistent with those of other electric vehicles/traditional fuel vehicles, the front longitudinal beam can be properly prolonged towards the front direction of the vehicle, and the collision energy absorption space is increased; the front longitudinal beam and the rear longitudinal beam of the lower body beam frame structure are not communicated from front to back, the rear end of the front longitudinal beam is connected to the front part of the inner plate of the threshold, and the front part of the rear longitudinal beam is connected with the rear end of the threshold; the lower end of the front wall plate is a beam with a cavity enclosed by cross beams made of 2 ultrahigh-strength steel plates. As shown in fig. 5, the front-side member rear connecting plate assembly is connected to a cavity beam surrounded by the front-wall lower cross member upper plate 11 and the front-wall lower cross member lower plate 12. The rear longitudinal beam is in smooth connection with the inner plate of the threshold, and the rear section of the rear longitudinal beam is parallel to the X direction of the coordinate system; the front beam of the rear floor is set by considering the position of a rear mounting point of the power battery pack; the rear floor rear cross beam is a rear auxiliary frame installation reinforcing cross beam.
The main design of the beam structure of the present embodiment is based on the following:
The front floor longitudinal beam structure is removed, and a structure for improving the direct impact/offset impact performance requirement needs to be designed: the intrusion amount of a brake pedal and an accelerator pedal towards the rear direction of the vehicle is reduced by strengthening the beam structure at the lower part of the front wall; the rear section of the front longitudinal beam is connected to the front end of the inner plate of the threshold in a straight-line manner, the collision energy of the front longitudinal beam can be smoothly transmitted to the threshold and transmitted to the side wall through the threshold, the collision energy at the position of the front wall plate is shared, and the backward deformation of the front wall is reduced; the rear longitudinal beam is connected to the rear end of the inner plate of the threshold in a forward collision/offset collision/rear collision mode, so that energy transfer between the threshold and the rear longitudinal beam is facilitated, and meanwhile, an arrangement space is provided for the battery pack to the maximum extent; the whole electric vehicle has larger weight than a fuel vehicle with the same grade and size, so that the front longitudinal beam can be properly prolonged towards the front direction of the vehicle, and the front longitudinal beam can fully absorb energy; mounting points on the left side and the right side of the battery pack are arranged on the inner plate of the doorsill; in order to improve the torsional rigidity of the vehicle body, a rear floor rear cross beam is added.
The beam frame structure of the embodiment obviously increases the arrangement space of the power battery. Except that the front and rear longitudinal beam transition regions, the battery pack is guaranteed to be arranged in the Y-direction and X-direction maximization space of the vehicle body coordinate system, and meanwhile, the battery pack is also approximately in a rectangular region, so that the arrangement of a square battery cell module is facilitated. The battery pack arrangement of the beam structure in the background art is shown in fig. 6, which can be provided with 14 battery cell modules, while the battery pack arrangement of the beam structure in the embodiment is shown in fig. 7, which can be provided with 25 battery cell modules, and can increase the electric quantity by 12-16 kwh under the current condition. The collision force transmission structure is reasonable, and the collision performance can be ensured; a longitudinal beam structure below a front floor and a connecting support/small cross beam of the longitudinal beam of the front floor and an inner plate of the threshold are eliminated, so that the vehicle body structure is light, and the weight is predicted to be reduced by 12-15 kg.
The beam structure is suitable for pure electric new energy passenger vehicle types, and certain vehicle types have been designed and verified in my department, so that the beam structure can be used as a recommendation scheme of a pure electric vehicle type platform framework. And the design scheme of the lightweight body structure meets the design trend in the industry.
For those skilled in the art, the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the present invention is not limited to the above-mentioned embodiments, and various insubstantial modifications can be made without modification to the method concept and technical solution of the present invention, and the present invention is also within the scope of the present invention.
Claims (1)
1. The utility model provides an automobile body roof beam structure under electronic passenger car which characterized in that: the device is composed of a left front longitudinal beam assembly, a right front longitudinal beam assembly, a left front longitudinal beam rear connecting plate assembly, a right front longitudinal beam rear connecting plate assembly, a left threshold inner plate assembly, a right threshold inner plate assembly, a left rear longitudinal beam assembly, a right rear longitudinal beam assembly, a rear floor front cross beam, a rear floor rear cross beam, a front wall lower cross beam upper plate and a front wall lower cross beam lower plate; the left front longitudinal beam assembly is welded and fixed with the left front longitudinal beam rear connecting plate assembly, and the left front longitudinal beam rear connecting plate assembly is welded and fixed with the front end of the left threshold inner plate assembly; the right front longitudinal beam assembly is welded and fixed with the right front longitudinal beam rear connecting plate assembly, and the right front longitudinal beam rear connecting plate assembly is welded and fixed with the front end of the right threshold inner plate assembly; the front wall lower cross beam upper plate and the rear wall lower cross beam upper plate are welded into a front wall plate with a cavity structure, the front wall plate is welded at the rear side of the left front longitudinal beam rear connecting plate assembly and the right front longitudinal beam rear connecting plate assembly, and two ends of the front wall plate are respectively welded and fixed with the front ends of the left threshold inner plate assembly and the right threshold inner plate assembly; the rear end of the left doorsill inner plate assembly is welded and fixed with the left rear longitudinal beam assembly, and the rear end of the right doorsill inner plate assembly is welded and fixed with the right rear longitudinal beam assembly; and the left rear longitudinal beam assembly and the right rear longitudinal beam assembly are fixedly welded through a rear floor front cross beam and a rear floor rear cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822172820.5U CN209739156U (en) | 2018-12-24 | 2018-12-24 | Automobile body roof beam structure under electronic passenger car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822172820.5U CN209739156U (en) | 2018-12-24 | 2018-12-24 | Automobile body roof beam structure under electronic passenger car |
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| Publication Number | Publication Date |
|---|---|
| CN209739156U true CN209739156U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822172820.5U Active CN209739156U (en) | 2018-12-24 | 2018-12-24 | Automobile body roof beam structure under electronic passenger car |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111017036A (en) * | 2020-01-15 | 2020-04-17 | 吴春涛 | Multi-size multi-power platform vehicle body structure and platform vehicle with same |
| CN113320599A (en) * | 2021-07-13 | 2021-08-31 | 合肥创智汽车技术开发有限公司 | Floor skeleton assembly behind new forms of energy electric automobile |
| CN114750830A (en) * | 2022-04-19 | 2022-07-15 | 浙江零跑科技股份有限公司 | Vehicle frame structure |
| CN115009380A (en) * | 2022-07-19 | 2022-09-06 | 奇瑞汽车股份有限公司 | Floor structure and vehicle before automobile body |
-
2018
- 2018-12-24 CN CN201822172820.5U patent/CN209739156U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111017036A (en) * | 2020-01-15 | 2020-04-17 | 吴春涛 | Multi-size multi-power platform vehicle body structure and platform vehicle with same |
| CN113320599A (en) * | 2021-07-13 | 2021-08-31 | 合肥创智汽车技术开发有限公司 | Floor skeleton assembly behind new forms of energy electric automobile |
| CN114750830A (en) * | 2022-04-19 | 2022-07-15 | 浙江零跑科技股份有限公司 | Vehicle frame structure |
| CN114750830B (en) * | 2022-04-19 | 2023-10-13 | 浙江零跑科技股份有限公司 | Frame structure |
| CN115009380A (en) * | 2022-07-19 | 2022-09-06 | 奇瑞汽车股份有限公司 | Floor structure and vehicle before automobile body |
| CN115009380B (en) * | 2022-07-19 | 2024-03-01 | 奇瑞汽车股份有限公司 | Front floor structure of vehicle body and vehicle |
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