Front cabin arrangement structure and vehicle

Abstract

The utility model provides a front cabin arrangement structure and a vehicle. The front cabin arrangement structure comprises a front anti-collision beam assembly, a front longitudinal beam assembly, a front coaming assembly, an auxiliary frame assembly and a steering gear assembly. The front anti-collision beam assembly comprises a front anti-collision beam and an energy absorption box, and the front anti-collision beam is connected with the front longitudinal beam assembly through the energy absorption box. The auxiliary frame assembly is installed below the front portion of the front longitudinal beam assembly, a motor is installed on the auxiliary frame assembly, and the front coaming assembly is arranged close to an output shaft of the motor in the X direction. The steering gear assembly is assembled on the auxiliary frame assembly and located on the front portion of the motor. In this way, the dash panel assembly and the steering gear assembly are arranged in front, so that the front-row seats move forwards, and then the cabin obtaining rate of rear-row passengers is increased.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a front cabin layout structure and a vehicle. Background Art

[0002] Whether for passengers or drivers, they need to stay in the car during travel. The quality of the interior space directly determines the travel experience. Therefore, improving the utilization rate and comfort of the vehicle's interior space is an important aspect of improving the user experience. However, on the one hand, due to the existence of the vehicle power system structure, the available space inside the car has never been fully released. On the other hand, from the invention of the car to the present, the structure of the car, such as seat arrangement and space layout, has not changed much. With the rise of smart electric vehicles, the chassis of the car has begun to change. The integration of power batteries and the emergence of wire control technology have integrated more vehicle functions into the chassis itself, leaving more and more space for the wheels, laying the foundation for the revolution of wheel space.

[0003] Automobile collision safety performance has become the focus of automobile manufacturers and consumers. As a core component of automobile collision safety, the front collision structure directly affects the performance of the vehicle in a collision. At the same time, in the research of automobile collision safety technology, there is a certain conflict between crashworthiness and lightweight. Traditionally, in order to improve the crashworthiness of a car, it is often necessary to increase the weight and rigidity of the car body, but this will also increase the overall mass of the vehicle, reduce fuel economy and handling performance. Therefore, how to optimize the front collision structure and improve the crashworthiness of the vehicle is also a key issue.

[0004] Therefore, it is necessary to design a front cabin layout structure that solves the above technical problems. Utility Model Content

[0005] The present application provides a front cabin layout structure and a vehicle with a high cabin efficiency.

[0006] According to a first aspect of an embodiment of the present specification, a front cabin layout structure is provided, comprising a front bumper beam assembly, a front longitudinal beam assembly, a front panel assembly, a subframe assembly and a steering gear assembly; the front bumper beam assembly comprises a front bumper beam and an energy absorption box, the front bumper beam is connected to the front longitudinal beam assembly via the energy absorption box, the subframe assembly is mounted below the front of the front longitudinal beam assembly, a motor is mounted on the subframe assembly, and the front panel assembly is arranged adjacent to the output shaft of the motor in the X direction; the steering gear assembly is assembled on the subframe assembly and is located in front of the motor.

[0007] Furthermore, it also includes a battery pack mounting bracket, the battery pack mounting bracket is provided with a sub-frame collision guide structure, the sub-frame collision guide structure is located behind the sub-frame assembly; the sub-frame assembly is provided with a frame guide portion; the sub-frame collision guide structure and the battery pack front guide frame are both inclined;

[0008] When a collision occurs, the sub-frame collision guide structure cooperates with the frame guide portion to guide the sub-frame assembly to move downward to fall off.

[0009] Furthermore, the battery pack mounting bracket is provided with a sub-frame rear mounting hole located in front of the sub-frame collision guide structure, and the sub-frame assembly is fixed to the sub-frame rear mounting hole by bolts.

[0010] Furthermore, the front cabin arrangement structure also includes a Shotgun, and the Shotgun includes a deformation zone and a high-strength zone arranged forward and backward along X, and the strength of the high-strength zone is greater than the strength of the deformation zone.

[0011] Furthermore, an energy absorption control line is formed between the deformation zone and the high-strength zone, and the energy absorption control line is located at the front side of the front panel in the X direction; the top of the energy absorption control line coincides with the bottom of the A-pillar; the energy absorption control line is arc-shaped and protrudes toward the front panel assembly.

[0012] Furthermore, the output shaft is located at the front side of the front panel assembly, and the distance between the output shaft and the front panel assembly in the X direction is 5mm-30mm.

[0013] Furthermore, the subframe assembly includes two cross beams, two longitudinal beams and a partition beam, the two cross beams and the two longitudinal beams form an installation area, the partition beam is arranged between the two longitudinal beams and arranged forwardly, and divides the installation area into a front installation area and a rear installation area, and the motor is installed on the rear installation area.

[0014] Furthermore, one of the cross beams protrudes forward to the bottom of the energy absorption box; four steering gear mounting points are provided above the longitudinal beam of the front mounting area, and the steering gear assembly is fixed to the front mounting area through the steering gear mounting points; the two steering gear mounting points located on the front side are located below the energy absorption box.

[0015] Furthermore, the front longitudinal beam assembly includes a bending section and a high-strength section, the front portion of the bending section in the X-direction is connected to the energy absorption box, and the rear portion of the bending section is connected to the high-strength section; the rear portion of the high-strength section is connected to a high-strength cross beam, and the strength of the high-strength section and the high-strength cross beam are both greater than the strength of the bending section.

[0016] Furthermore, the bending section has two bending points spaced apart along the X direction; and the bending section is bent in a Z-shape.

[0017] Furthermore, the end surface of the bending section is narrowed or provided with deformation inducing grooves at the two bending points to control the bending section to bend in a Z-shape; and the energy absorption box is provided with a plurality of deformation inducing grooves distributed along the X direction.

[0018] Furthermore, the yield strength of the material of the top wall of the bending section is equal to the yield strength of the material of the top wall of the high-strength section; the yield strength of the material of the side wall of the bending section is greater than the yield strength of the material of the side wall of the high-strength section; the bottom wall of the bending section and the bottom wall of the high-strength section are installed with support sheets, and the yield strength of the support sheet at the bottom wall of the bending section is less than the yield strength of the support sheet at the bottom wall of the high-strength section.

[0019] Furthermore, the front anti-collision beam includes a front plate and a rear plate, and the front plate and the rear plate are both B-shaped.

[0020] According to a second aspect of an embodiment of the present specification, a vehicle is provided, comprising the front cabin arrangement structure described in the first aspect above.

[0021] The present application has the following beneficial effects: the dash panel assembly is arranged adjacent to the output shaft of the motor in the X direction. The steering gear assembly is assembled on the subframe assembly and located in front of the motor. In this way, the dash panel assembly and the steering gear assembly are moved forward, more space inside the vehicle is released, and the cabin rate is increased.

[0022] In addition, after the space utilization rate is improved, although the collision energy absorption space is reduced, the five-star collision requirements can still be met through the layout and structural optimization of the front anti-collision beam assembly, front longitudinal beam assembly, front panel assembly and subframe assembly.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0025] Figure 1 is a cross-sectional view of the cabin layout structure before this application;

[0026] Figure 2 It is a three-dimensional diagram of the cabin layout structure before this application;

[0027] Figure 3 yes Figure 2 Schematic diagram of the local structure;

[0028] Figure 4 It is a top view of the cabin layout structure before this application;

[0029] Figure 5 is a schematic diagram of the front longitudinal beam assembly of the present application;

[0030] Figure 6 is a schematic diagram of the subframe assembly and the motor of the present application;

[0031] Figure 7 is a schematic diagram of a battery pack mounting bracket of the present application;

[0032] Figure 8 is a cross-sectional view of the front anti-collision beam of the present application;

[0033] Fig. 9 This application Sh otgun A partial enlarged view of

[0034] Fig.10 It is a schematic diagram of the process of the subframe assembly of the present application falling off after a collision.

[0035] Description of reference numerals:

[0036] 10-front anti-collision beam assembly; 11-front anti-collision beam; 111-front plate; 112-rear plate; 12-energy absorption box; 121-deformation induction groove;

[0037] 20-front longitudinal beam assembly; 21-bending section; 211, 212-bending points; 22-high-strength section; 23-high-strength cross beam; 24-top wall; 25-side arm; 26-bottom wall;

[0038] 30-front panel assembly;

[0039] 40-subframe assembly; 41-frame guide; 42-steering gear mounting point; 43-longitudinal beam, 44-cross beam; 45-separator beam; 46-front mounting area; 47-rear mounting area;

[0040] 50-steering gear assembly;

[0041] 60-motor; 61-output shaft;

[0042] 70-battery pack mounting bracket; 71-subframe collision guide structure; 72-subframe rear mounting hole;

[0043] 81-deformation zone; 82-high strength zone; 83-energy absorption control line;

[0044] 90-A column. DETAILED DESCRIPTION

[0045] Here, the technical solutions in the embodiments (or "implementations") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0046] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0047] Next, the embodiments of this specification are described in detail.

[0048] Reference Figure 1 As shown, the present application discloses a front cabin arrangement structure, including a front anti-collision beam assembly 10 , a front longitudinal beam assembly 20 , a front wall panel assembly 30 , a subframe assembly 40 and a steering gear assembly 50 .

[0049] Reference Figure 1-3 and Figure 8 As shown, the front anti-collision beam assembly 10 includes a front anti-collision beam 11 and an energy absorption box 12. The front anti-collision beam 11 is connected to the front longitudinal beam assembly 20 through the energy absorption box 12 to form a force transmission path. The energy absorption box 12 collapses when a collision occurs to achieve an energy absorption effect. The front anti-collision beam 11 includes a front plate 111 and a rear plate 112. The front plate 111 and the rear plate 112 are both B-shaped.

[0050] The energy absorption box 12 can be set to a longer length to absorb more collision energy. In this embodiment, the length of the energy absorption box 12 ranges from 300mm to 400mm, preferably 334mm, and the sum of the thickness of the front anti-collision beam 11 is about 390mm. The energy absorption box 12 is made of high-strength steel, and a zinc coating is added to its surface to have anti-corrosion properties. The energy absorption box 12 is provided with a plurality of deformation induction grooves 121 distributed along the X direction.

[0051] Reference Figure 5 As shown, the front longitudinal beam assembly 20 includes a bending section 21 and a high-strength section 22. The front portion of the bending section 21 in the X direction is connected to the energy absorption box 12, and the rear portion of the bending section 21 is connected to the high-strength section 22. The rear portion of the high-strength section 22 is connected to a high-strength cross beam 23, and the strength of the high-strength section 22 and the high-strength cross beam 23 is greater than that of the bending section 21.

[0052] The bending section 21 is provided with two bending points 211 and 212 at intervals along the X direction. The end faces of the bending section 21 are reduced or deformation inducing grooves are provided at the two bending points 211 and 212 to control the bending section 21 to bend in a Z shape. The above-mentioned reduction of the end faces refers to the inward reduction of the outer walls at the bending points 211 and 212, so that the cross-sectional dimensions of the bending section 21 at the bending points 211 and 212 are smaller than the cross-sectional dimensions of other parts of the bending section 21. In the event of a collision, the bending portion between the two bending points 211 and 212 bends from the X direction to the Y direction, that is, the "Z"-shaped bending secondary energy absorption can be achieved in the event of a high-speed collision. By controlling the deformation mode of the bending section 21, the energy absorption of the bending section 21 is increased as much as possible, and the stability and load-bearing capacity of the front longitudinal beam assembly 20 are further improved.

[0053] The high-strength section 22 is provided to avoid deformation during collision. The high-strength section 22 and the high-strength cross beam 23 form a Y-shaped structure. Figure 5 The dotted line shows the structure formed by the high-strength section 22 on one side and the high-strength cross beam 23. Two sets are provided on the vehicle and are arranged symmetrically on both sides to form the above-mentioned Y-shaped structure. The high-strength section 22 improves the strength of this area, so that the longitudinal beam of the Z-shaped bending section 21 deforms first here, preventing the collision from being transmitted backwards and invading the cockpit.

[0054] The yield strength of the top wall material of the bending section 21 is equal to the yield strength of the top wall material of the high-strength section 22, the yield strength of the side wall material of the bending section 21 is greater than the yield strength of the side wall material of the high-strength section 22, and support plates (not shown in the figure) are installed on the bottom wall of the bending section 21 and the bottom wall of the high-strength section 22, and the yield strength of the support plate at the bottom wall of the bending section 21 is less than the yield strength of the support plate at the bottom wall of the high-strength section 22.

[0055] All of the above are made of hot-rolled high-strength steel. Specifically, by controlling the cooling rate and alloy design during the heat treatment process, different parts of the steel plate or steel can form different structures, thereby achieving different yield strengths in each area. It can provide higher strength and better formability while maintaining good impact toughness and ductility.

[0056] Reference Figure 4 and Figure 6 As shown, the subframe assembly 40 is installed at the front lower part of the front longitudinal beam assembly 20, and the subframe assembly 40 includes two longitudinal beams 43, two cross beams 44 and a partition beam 45. The two cross beams 44 and the two longitudinal beams 43 form a mounting area, and the partition beam 45 is arranged between the two longitudinal beams 43 and arranged forward, and divides the mounting area into a front mounting area 46 and a rear mounting area 47, and the motor 60 is installed on the rear mounting area 47. The connection between the components can be welding, screw connection, clamping, etc.

[0057] One of the cross beams 44 protrudes forward to the bottom of the energy absorption box 12. Four steering gear mounting points 42 are provided above the longitudinal beam of the front mounting area 46, and the steering gear assembly 50 is fixed to the front mounting area 46 through the steering gear mounting points 42. The two steering gear mounting points 42 located at the front side are located below the energy absorption box 12. In this way, while the steering gear mounting points 42 are moved forward, the steering gear assembly 50 is moved forward.

[0058] Reference Figure 1 As shown, the dash panel assembly 30 is arranged adjacent to the output shaft 61 of the motor 60 in the X direction, and is located at the rear side of the output shaft 61 of the motor 60 in the figure. The output shaft 61 is located at the dotted line a in the X direction, and the dash panel assembly 30 is located at the dotted line b in the X direction. The distance between the dotted line a and the dotted line b in the X direction is 5mm-30mm. For example, 5mm, 20mm or 30mm, etc. With this arrangement, the dash panel assembly 30 moves forward, the pedal moves forward, the length of the pedal and the rear tailgate is increased, the space in the vehicle is further released, and the cabin rate is significantly improved, which can reach more than 70%. The space utilization rate of the whole vehicle is increased, and the riding experience of passengers and drivers is significantly improved. In the Y direction, the dash panel assembly 30 is located above the output shaft 61 of the motor 60.

[0059] Reference Figure 6-7 As shown, the front cabin layout structure also includes a battery pack mounting bracket 70, on which a subframe collision guide structure 71 is provided. The subframe collision guide structure 71 is located behind the subframe assembly 40, and the subframe assembly 40 is provided with a frame guide portion 41. The frame guide portion 41 and the subframe collision guide structure 71 are both inclined.

[0060] When a collision occurs, the sub-frame collision guide structure 71 cooperates with the frame guide portion 41 to guide the sub-frame assembly 40 to move downward to fall off. By multiple guides of the sub-frame assembly 40, the sub-frame assembly 40 is continuously guided to fall off in a direction away from the battery pack, thereby ensuring the safety of the battery pack and improving the overall safety of the vehicle.

[0061] The sub-frame collision guide structure 71 is used to guide the sub-frame assembly 40 to fall off. The sub-frame collision guide structure 71 is an inclined surface or an arc surface. With such a configuration, when the sub-frame assembly 40 contacts the sub-frame collision guide structure 71, the resistance of the sub-frame collision guide structure 71 to the sub-frame assembly 40 is reduced, so that the sub-frame assembly 40 can fall off smoothly. At the same time, the sub-frame collision guide structure 71 can provide a falling track for the sub-frame assembly 40, guiding the sub-frame assembly 40 to deviate obliquely downward of the vehicle, thereby protecting the battery pack.

[0062] The battery pack mounting bracket 70 is provided with a subframe rear mounting hole 72 located in front of the subframe collision guide structure 71, and the subframe assembly 40 is fixed to the subframe rear mounting hole 72 by bolts. The subframe rear mounting hole 72 is arranged on the front side of the subframe collision guide structure 71, and during a collision, the bolts are quickly broken to prevent the subframe assembly 40 from falling off during a collision. By the subframe assembly 40 falling off, the dual purpose of absorbing the collision energy of the vehicle and protecting the battery pack is achieved, thereby improving the safety of the vehicle.

[0063] Reference Figure 2 and Fig. 9 As shown, the front cabin arrangement structure also includes a Shotgun, which includes a deformation zone 81 and a high-strength zone 82 arranged forward and backward along the X direction, and the overall strength of the high-strength zone 82 is greater than the overall strength of the deformation zone 81. High strength can be achieved by using high-strength steel plates or ultra-high-strength steel plates for the two layers of sheet metal of the Shotgun, and adding reinforcements.

[0064] An energy absorption control line 83 is formed between the deformation zone 81 and the high-strength zone 82. In the X direction, the energy absorption control line 83 is located at the front side of the front panel assembly 30. The top of the energy absorption control line 83 coincides with the bottom of the A-pillar 90. The energy absorption control line 83 is arc-shaped and protrudes toward the front panel assembly 30. In this way, the collision force is first transmitted to the energy absorption control line 83, and then the force is transmitted to the top A-pillar 90 and other components such as the bottom door along the energy absorption control line 83, generating a certain amount of lateral kinetic energy on the vehicle body, avoiding the collision from being transmitted to the cockpit, and ensuring the safety of the occupants. The arc structure can evenly load the collision force, and will not concentrate the force like a straight structure.

[0065] The A-pillar 90 and other components such as the bottom door have a deeper cavity cross-section and higher structural strength, which can ensure that the collision force is stably transmitted and dispersed on the planned path, and ultimately the collision force can be transmitted to the A-pillar 90 and other components such as the bottom door.

[0066] In addition, after the cabin rate is improved, the collision energy absorption space is relatively reduced. By optimizing the layout and energy absorption method of the front anti-collision beam assembly 10, the front longitudinal beam assembly 20, the front panel assembly 30 and the subframe assembly 40, the China-Europe five-star collision requirements can also be met, so that both space utilization and collision requirements can be taken into account.

[0067] Specifically, the present application has five energy absorption modes: front anti-collision beam energy absorption, energy absorption box energy absorption, longitudinal beam Z-shaped bending energy absorption, shotgun deformation energy absorption and sub-frame diving energy absorption. The front anti-collision beam structure adopts B type, which has a certain structural strength and plays a role at low speeds to avoid high maintenance costs. The energy absorption box 12 adopts an extra-long structure and is provided with a deformation inducing groove, which plays a role at medium speeds. The longitudinal beam Z-shaped bending section energy absorption, shotgun deformation energy absorption and sub-frame diving energy absorption play a role in high-speed collisions to avoid collisions invading the cockpit. Please refer to Fig.10 As shown, the front side of the dotted line c is the collision energy absorption zone, which is located in front of the energy absorption control line 83 and the front panel assembly 30 in the X direction and does not invade the cockpit.

[0068] The present application also discloses a vehicle, including the above-mentioned front cabin arrangement structure. The front cabin arrangement structure is arranged by placing the front panel assembly 30 adjacent to the output shaft 61 of the motor 60 in the X direction. The steering gear assembly 50 is assembled on the subframe assembly 40 and is located in front of the motor 60. In this way, the front panel assembly 30 and the steering gear assembly 50 are placed forward, so that the front seats are moved forward, thereby increasing the cabin rate of the rear passengers.

[0069] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A front cabin layout structure, characterized in that: The vehicle comprises a front anti-collision beam assembly, a front longitudinal beam assembly, a front panel assembly, a sub-frame assembly and a steering gear assembly; the front anti-collision beam assembly comprises a front anti-collision beam and an energy absorption box, the front anti-collision beam is connected to the front longitudinal beam assembly through the energy absorption box, the sub-frame assembly is installed at the lower front of the front longitudinal beam assembly, a motor is installed on the sub-frame assembly, and the front panel assembly is arranged adjacent to the output shaft of the motor in the X direction; the steering gear assembly is assembled on the sub-frame assembly and is located in front of the motor.

2. The front cabin arrangement structure according to claim 1, characterized in that: The vehicle further comprises a battery pack mounting bracket, the battery pack mounting bracket is provided with a sub-frame collision guide structure, the sub-frame collision guide structure is located behind the sub-frame assembly; the sub-frame assembly is provided with a frame guide portion; the sub-frame collision guide structure and the frame guide portion are both arranged in an inclined manner; When a collision occurs, the sub-frame collision guide structure cooperates with the frame guide portion to guide the sub-frame assembly to move downward to fall off.

3. The front cabin arrangement structure according to claim 2, characterized in that: The battery pack mounting bracket is provided with a sub-frame rear mounting hole located in front of the sub-frame collision guide structure, and the sub-frame assembly is fixed to the sub-frame rear mounting hole by bolts.

4. The front cabin arrangement structure according to claim 1, characterized in that: The front cabin arrangement structure also includes a Shotgun, which includes a deformation zone and a high-strength zone arranged forward and backward along X, and the strength of the high-strength zone is greater than the strength of the deformation zone.

5. The front cabin arrangement structure according to claim 4, characterized in that: An energy absorption control line is formed between the deformation zone and the high-strength zone, and the energy absorption control line is located at the front side of the front panel assembly in the X direction; the top of the energy absorption control line coincides with the bottom of the A-pillar; the energy absorption control line is arc-shaped and protrudes toward the front panel assembly.

6. The front cabin arrangement structure according to claim 1, characterized in that: The output shaft is located at the front side of the front panel assembly, and the distance between the output shaft and the front panel assembly in the X direction is 5mm-30mm.

7. The front cabin arrangement structure according to claim 1, characterized in that: The subframe assembly includes two cross beams, two longitudinal beams and a partition beam. The two cross beams and the two longitudinal beams form an installation area. The partition beam is arranged between the two longitudinal beams and arranged forwardly, and divides the installation area into a front installation area and a rear installation area. The motor is installed on the rear installation area.

8. The front cabin arrangement structure according to claim 7, characterized in that: One of the cross beams protrudes forward to the bottom of the energy absorption box; four steering gear mounting points are provided above the longitudinal beam of the front mounting area, and the steering gear assembly is fixed to the front mounting area through the steering gear mounting points; the two steering gear mounting points located on the front side are located below the energy absorption box.

9. The front cabin arrangement structure according to claim 1, characterized in that: The front longitudinal beam assembly includes a bending section and a high-strength section, the front portion of the bending section is connected to the energy absorption box, and the rear portion of the bending section is connected to the high-strength section; the rear portion of the high-strength section is connected to a high-strength cross beam, and the strength of the high-strength section and the high-strength cross beam are both greater than the strength of the bending section.

10. The front cabin arrangement structure according to claim 9, characterized in that: The bending section is provided with two bending points at intervals along the X direction; when a collision occurs, the bending section bends in a Z-shape.

11. The front cabin arrangement structure according to claim 10, characterized in that: The end surface of the bending section is narrowed or provided with deformation inducing grooves at the two bending points to control the bending section to bend in a Z-shape; and the energy absorption box is provided with a plurality of deformation inducing grooves distributed along the X direction.

12. The front cabin arrangement structure according to claim 9, characterized in that: The yield strength of the material of the top wall of the bending section is equal to the yield strength of the material of the top wall of the high-strength section; the yield strength of the material of the side wall of the bending section is greater than the yield strength of the material of the side wall of the high-strength section; the bottom wall of the bending section and the bottom wall of the high-strength section are installed with support sheets, and the yield strength of the support sheet at the bottom wall of the bending section is less than the yield strength of the support sheet at the bottom wall of the high-strength section.

13. The front cabin arrangement structure according to claim 1, characterized in that: The front anti-collision beam includes a front plate and a rear plate, and the front plate and the rear plate are both in a B-shape.

14. A vehicle, characterized in that: The front cabin arrangement structure comprises any one of claims 1-13 above.

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