CN217730563U

CN217730563U - Electric motor car platform central channel structure

Info

Publication number: CN217730563U
Application number: CN202220529662.8U
Authority: CN
Inventors: 付军鹏; 沈太生; 李亚伟; 马鹏程
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-11-04
Anticipated expiration: 2032-03-12

Abstract

The utility model relates to an electric motor car platform central channel structure relates to the technical field of automobile design and manufacturing. The utility model discloses a central channel structure of an electric vehicle platform, which comprises a central channel front reinforcing plate, a central channel front section and a central channel body; the central channel body has a gradually reduced sectional area along the front-to-rear direction of the vehicle body; the central channel body is welded and fixed with the front section of the central channel, the lower end of the front wall front cross beam is welded and fixed with the front end of the front section of the central channel, and the front reinforcing plate of the central channel is welded with the upper end of the front wall front cross beam, so that a closed longitudinal cavity is formed; the first cross beam, the second cross beam and the third cross beam are fixedly welded with the central channel body. The utility model discloses an electric motor car platform central channel structure not only does not influence the foot space of back row, can satisfy reasonable biography power route, and complete truss framework has been guaranteed to the dispersion that can be reasonable just bumping load, has improved battery package installation space's collision security nature.

Description

Electric motor car platform central channel structure

Technical Field

The utility model relates to a technical field of automobile design and manufacturing, more specifically say, the utility model relates to an electric motor car platform central channel structure.

Background

The center channel structure of pure electric vehicles in the current market has three types, which are respectively as follows:

as shown in fig. 1, a center tunnel structure 1, which is enclosed by a dotted line, has a front end connected to a dash panel 2 and a rear end connected to a rear floor 3, and in the structure, the whole center tunnel is highly raised, which affects the space of two leg portions and reduces the riding comfort, and the second cross member and the third cross member are disconnected at the center tunnel position, causing interruption of force transmission during a side collision.

As shown in fig. 2, the center tunnel structure 1 is connected to the dash panel 2 at the front end and to the second cross member 4 at the rear end, and the center tunnel structure 2 and the second and third cross members do not form a complete truss structure, so that the deformation of the front floor is large during frontal and side impacts, which is not favorable for impact safety.

As shown in fig. 3, which is a flat floor structure, the circled portion is a flat floor structure 5 without a central channel. The structure is not beneficial to the arrangement of the wiring harness and the utilization of the space at the front end of the central channel, the high-voltage wire outlet at the front end of the power battery occupies a large space, and if the central channel exists, the high-voltage wire outlet can be arranged in the middle of the central channel, so that the space of a vehicle body is utilized more efficiently.

The above structure has the following problems:

the central channel is used as a main force transmission path, the pure electric vehicle platform should reserve the central channel, and pipeline lines are reasonably arranged by means of the lower space of the central channel; the central channel rear end boundary position influences the stability of body structure and influences the step space of two rows of human bodies again promptly, if the central channel rear end ends the second crossbeam, during frontal collision, longitudinal force does not have effectual dispersion then, and floor face deformation is great, and during the side collision, because lack the support in the middle of second crossbeam and the third crossbeam, when the third crossbeam receives transverse load, easy unstability and emergence are buckled. If the rear end of the central channel is stopped at the rear floor (the fourth cross beam), the middle of the central channel is too high, the foot space of two rows of human bodies can be influenced, and certain influence can be exerted on the riding comfort.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem in the prior art, the utility model aims to provide an electric vehicle platform central passage structure.

The utility model discloses a central channel structure of an electric vehicle platform, which comprises a central channel front reinforcing plate, a central channel front section and a central channel body; the cross section of the central channel body is in a shape like a Chinese character 'ji', and the cross section of the central channel body gradually decreases along the direction from front to back of the vehicle body; the central channel body is welded and fixed with the front section of the central channel, the lower end of the front wall front cross beam is welded and fixed with the front end of the front section of the central channel, and the central channel front reinforcing plate is welded with the upper end of the front wall front cross beam, so that a closed longitudinal cavity is formed among the central channel front reinforcing plate, the front section of the central channel and the front wall front cross beam; the first cross beam, the second cross beam and the third cross beam are fixedly welded with the central channel body.

The front wall front cross beam and the central channel front reinforcing plate form a front T-shaped structure.

Wherein the longitudinal cavities are located at intersections of the "front T" structures.

Wherein a rear T-shaped structure is formed between the third cross beam and the rear end of the central channel body.

The first cross beam is welded and fixed with the upper part of the U-shaped central channel body.

The second cross beam is welded and fixed with the side surface of the inverted V-shaped central channel body.

And the third cross beam is welded and fixed with the upper surface of the central channel body in the shape of the Chinese character 'ji'.

The horizontal position of the first cross beam is higher than the horizontal positions of the second cross beam and the third cross beam.

The front end of the central channel front reinforcing plate is provided with a flange, the upper end of the front wall front cross beam is provided with a flange, and the front end flange of the central channel front reinforcing plate is welded and fixed with the upper end flange of the front wall front cross beam.

The second cross beam and the third cross beam are of an integral left-right through structure.

Compared with the prior art, the utility model discloses an electric motor car platform central authorities access structure has following beneficial effect:

1. the space utilization efficiency is higher, pipeline lines can be reasonably arranged, the height of the rear row of the battery pack is reduced, the foot space of the rear row of the battery pack is improved, the riding comfort is improved, a reasonable force transmission path can be met, the frontal collision load can be reasonably dispersed, the complete truss framework is ensured, and the collision safety of the installation space of the battery pack is improved;

2. the front end of the central channel and the front wall front cross beam are of a front T-shaped structure and a closed cavity structure, so that the front wall front cross beam is longitudinally supported, and the bending resistance of the front wall front cross beam is improved;

3. the rear end of the central channel and the third beam form a rear T-shaped structure, so that the frontal collision load can be reasonably dispersed, the force is transmitted to other beams, the deformation of the front floor when the front floor is subjected to the collision load is reduced, and the frontal collision safety is improved; the integrity of the second cross beam and the third cross beam is guaranteed, and the third cross beam is connected with the central channel to form a complete truss structure, so that the third cross beam is more stable when being impacted by the side surface, does not bend, and improves the safety of side surface collision.

Drawings

Fig. 1 is a schematic structural diagram of a first electric vehicle platform central passage structure in the prior art.

Fig. 2 is a schematic structural diagram of a second electric vehicle platform central passage structure in the prior art.

Fig. 3 is a schematic structural diagram of a third prior art electric vehicle platform center tunnel structure.

Fig. 4 is a schematic structural diagram of a central passage structure of an electric vehicle platform in embodiment 1.

Fig. 5 is an enlarged schematic view of a circled portion in fig. 4.

Fig. 6 isbase:Sub>A schematic sectional view taken along the linebase:Sub>A-base:Sub>A in fig. 5.

Detailed Description

The following will be described in detail with reference to the specific embodiments of the present invention, so as to help those skilled in the art to understand the technical solution of the present invention more completely, accurately and deeply.

Example 1

As shown in fig. 4 to 6, the electric vehicle platform center tunnel structure of the present embodiment includes a center tunnel front reinforcement plate 10, a center tunnel front section 20, and a center tunnel body 30. The cross section of the central channel body 30 is in a shape like a Chinese character 'ji', and the cross section area gradually decreases from front to back along the vehicle body, so that a reasonable force transmission path is met, and the foot space of the rear row is not affected. The center tunnel body 30 is welded to the center tunnel front section 20, and the center tunnel front reinforcement plate 10 is welded to the center tunnel front section 20. The front end of the center channel front reinforcing plate 10 is provided with a flange, correspondingly, the upper end of the front wall front cross beam 60 is provided with a flange, the front end flange of the center channel front reinforcing plate 10 is welded and fixed with the upper end flange of the front wall front cross beam 60, and the lower end of the front wall front cross beam 60 is welded and fixed with the front end of the center channel front section 20, so that a closed longitudinal cavity 100 is formed among the center channel front reinforcing plate 10, the center channel front section 20 and the front wall front cross beam 60; the longitudinal cavity 100 is located at the intersection of the front cowl cross member 60 and the center tunnel front stiffener 10 in a "front T" configuration. The existence of the closed longitudinal cavity 100 greatly improves the stability of the front T-shaped structure, effectively improves the bending resistance of the front wall front cross beam, reduces the deformation of the part when frontal collision occurs, reduces the intrusion amount of the front wall plate, and simultaneously prevents the battery pack from collision or displacement. The first cross member 90 is welded to the upper part of the central passage body 30 having a shape of a Chinese character 'ji', the second cross member 80 is welded to the side surface of the central passage body 30 having a shape of a Chinese character 'ji', and the third cross member 70 is welded to the upper surface of the central passage body 30 having a shape of a Chinese character 'ji'. The horizontal position of the first beam 90 is higher than the horizontal positions of the second beam 80 and the third beam 70. In this embodiment, the central passage body 30 longitudinally spans the first and

second cross members

90, 80, which improves the lateral stability and bending resistance of the first and

second cross members

90, 80. A rear T-shaped structure is formed between the third beam 70 and the rear end of the central channel body 30, so that the integrity of the third beam 70 is ensured, the stability and the bending resistance of the third beam 70 are improved, and the central channel body and the beams form a complete truss structure.

In the embodiment, the central passage body and the front floor part are welded to belong to a front floor assembly; and the front section of the central passage, the front reinforcing plate of the central passage and the front wall plate are welded to belong to a front engine room assembly. The lower body assembly forms a complete central channel structure after being welded. The central channel structure of the electric vehicle platform of the embodiment reserves a central channel structure, not only can a high-voltage wire harness, a brake pipeline and a cooling pipeline be arranged below the central channel, but also a high-voltage wire outlet is arranged below the front part of the central channel, so that the vehicle body space is utilized more efficiently, and meanwhile, the riding comfort of two rows is considered, the central channel is not too high in bulge, and a reasonable force transmission path can be met; and the reasonable connecting structure of the central channel structure and the cross beam ensures a complete truss framework and improves the collision safety of the installation space of the battery pack. Particularly, the front end of the central channel, a front T-shaped structure and a closed cavity structure of the front wall front cross beam have a longitudinal supporting effect on the front wall front cross beam, and the bending resistance of the front wall front cross beam is improved; the rear end of the central channel and the third beam form a rear T-shaped structure, so that the frontal collision load can be reasonably dispersed, the force is transmitted to other beams, the deformation of the front floor when the front floor is subjected to the collision load is reduced, and the frontal collision safety is improved; the integrity of the second cross beam and the third cross beam is guaranteed, and the third cross beam is connected with the central channel to form a complete truss structure, so that the third cross beam is more stable when being impacted by the side surface, does not bend, and improves the safety of side surface collision.

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 by the above-mentioned manner, and various insubstantial modifications are possible within the protection scope of the present invention as long as the method concept and technical solution of the present invention are adopted.

Claims

1. The utility model provides an electric motor car platform central passage structure which characterized in that: comprises a central channel front reinforcing plate, a central channel front section and a central channel body; the cross section of the central channel body is in a shape of a Chinese character 'ji', and the central channel body has a gradually reduced cross section along the direction from front to back of the vehicle body; the central channel body is welded and fixed with the central channel front section, the lower end of the front wall front cross beam is welded and fixed with the front end of the central channel front section, and the central channel front reinforcing plate is welded with the upper end of the front wall front cross beam, so that a closed longitudinal cavity is formed among the central channel front reinforcing plate, the central channel front section and the front wall front cross beam; the first cross beam, the second cross beam and the third cross beam are fixedly welded with the central channel body.

2. The electric vehicle platform central passage structure of claim 1, wherein: the front wall front cross beam and the central channel front reinforcing plate form a front T-shaped structure.

3. The electric vehicle platform central passage structure of claim 2, wherein: the longitudinal cavities are located at the intersection of the "front T" structure.

4. The electric vehicle platform center tunnel structure of claim 1, wherein: a rear T-shaped structure is formed between the third cross beam and the rear end of the central channel body.

5. The electric vehicle platform center tunnel structure of claim 1, wherein: the first cross beam is welded and fixed with the upper part of the U-shaped central channel body.

6. The electric vehicle platform center tunnel structure of claim 1, wherein: the second cross beam is fixedly welded with the side surface of the inverted V-shaped central channel body.

7. The electric vehicle platform center tunnel structure of claim 1, wherein: the third cross beam is fixedly welded with the upper surface of the U-shaped central channel body.

8. The electric vehicle platform center tunnel structure of claim 1, wherein: the horizontal position of the first cross beam is higher than the horizontal positions of the second cross beam and the third cross beam.

9. The electric vehicle platform central passage structure of claim 1, wherein: the front end of the central channel front reinforcing plate is provided with a flanging, the upper end of the front wall front cross beam is provided with a flanging, and the front end flanging of the central channel front reinforcing plate is welded and fixed with the upper end flanging of the front wall front cross beam.

10. The electric vehicle platform center tunnel structure of claim 1, wherein: the second cross beam and the third cross beam are of an integral left-right through structure.