Vehicle body structure and vehicle

By designing recessed areas for battery pack mounting beams and connecting plates in the vehicle body structure, and combining multiple bosses and longitudinal beams to form a force transmission path, the problem of battery packs being easily squeezed during vehicle collisions is solved, improving the battery pack's fixation stability and vehicle body rigidity, and enhancing vehicle safety.

WO2025252010A1PCT designated stage Publication Date: 2025-12-11BYD CO LTD
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Patent Information

Application Number
PCT/CN2025/098216
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-04
Filing Date
2025-05-29
Publication Date
2025-12-11

AI Technical Summary

Technical Problem

During a vehicle collision, the battery pack is easily compressed, leading to a safety accident.

Method used

Design a vehicle body structure including a battery pack mounting beam and a connecting plate to form a recessed area to accommodate the battery pack, and form a force transmission path through multiple bosses and longitudinal beams to improve the fixation stability of the battery pack and the rigidity of the vehicle body, and disperse the collision force.

Benefits of technology

This improves the assembly stability of the battery pack and the rigidity of the vehicle body structure, reduces the risk of battery pack compression during collisions, and enhances vehicle safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025098216_11122025_PF_FP_ABST
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Abstract

A vehicle body structure and a vehicle. The vehicle comprises a battery pack and a vehicle body structure. The vehicle body structure comprises battery pack mounting beams (1) and a connecting plate (2), wherein each battery pack mounting beam extends in a front-rear direction (Y) of the vehicle, the two battery pack mounting beams are spaced apart in a width direction (X) of the vehicle, and the connecting plate is located at front ends of the two battery pack mounting beams and is provided with a recess area (201) that is recessed upwards in a height direction (Z) of the vehicle and that forms a part of a battery pack mounting cavity. The vehicle body structure has strong rigidity, which can improve the safety of the vehicle.
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Description

Vehicle body structure and vehicle

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202421267854.1, filed on June 04, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicles, in particular to a vehicle body structure and a vehicle. BACKGROUND

[0004] In some pure electric vehicles or hybrid vehicles, the arrangement of the battery pack affects the safety of the vehicle. In the related art, the battery pack is usually arranged at the bottom of the vehicle and fixed to the rocker beam. TECHNICAL PROBLEM

[0005] The present application aims to solve the problem that the battery pack is easily extruded and causes safety accidents when the vehicle collides in the related art. TECHNICAL SOLUTION

[0006] In one aspect, the present application provides a vehicle body structure, comprising:

[0007] a battery pack mounting beam extending in the front-rear direction of the vehicle, two battery pack mounting beams being arranged in the width direction of the vehicle; and

[0008] a connecting plate arranged at the front end of the two battery pack mounting beams and provided with a recessed area; in the height direction of the vehicle, the recessed area is recessed upward to form part of a battery pack mounting cavity.

[0009] In some embodiments of the present application, in the height direction of the vehicle, the vehicle body structure is provided with a through hole, so that at least part of the upper surface of the battery pack can form the floor of the vehicle body structure when the battery pack is located in the battery pack mounting cavity.

[0010] In some embodiments of the present application, in the height direction of the vehicle, the connecting plate is further provided with a first boss, the first boss being downwardly protruding, and the first boss is provided with at least one front battery pack mounting point for fixing the battery pack.

[0011] In some embodiments of the present application, the vehicle body structure further comprises:

[0012] a front longitudinal beam connected with the connecting plate and arranged at least in part on the front side of the connecting plate.

[0013] In some embodiments of the present application, two front longitudinal beams are arranged in the width direction of the vehicle.

[0014] The connecting plate is connected between the two front longitudinal beams in the width direction of the vehicle.

[0015] In some embodiments of the present application, the vehicle body structure further comprises:

[0016] The threshold beam is connected with the front longitudinal beam, and the front longitudinal beam is provided with a subframe mounting point, and the subframe mounting point is arranged on the extension line of the battery pack mounting beam in the front-rear direction of the vehicle.

[0017] In some embodiments of the present application, two threshold beams are provided, and one battery pack mounting beam is arranged spaced apart from one threshold beam in the width direction of the vehicle, and the two threshold beams are respectively located on the outer side of the corresponding battery pack mounting beam.

[0018] In some embodiments of the present application, the two battery pack mounting beams are connected by a connecting piece between the two battery pack mounting beams and the corresponding threshold beam, and a seat cross beam is arranged between the two battery pack mounting beams, and the connecting piece is arranged opposite to the seat cross beam in the width direction of the vehicle.

[0019] In some embodiments of the present application, the front longitudinal beam is provided with a second boss downwardly protruding in the height direction of the vehicle, and at least a part of the connecting plate is connected with the second boss.

[0020] In some embodiments of the present application, the front end of the battery pack mounting beam is connected with the second boss, and the connecting plate is further provided with a first boss downwardly protruding in the height direction of the vehicle, and the bottom surface of the first boss, the bottom surface of the second boss and the bottom surface of the battery pack mounting beam are located on the same plane.

[0021] In some embodiments of the present application, the vehicle body structure further comprises:

[0022] The rear longitudinal beam is at least partially located on the rear side of the battery pack mounting beam and is provided with a third boss, and the third boss is downwardly protruding in the height direction of the vehicle.

[0023] The rear end of the battery pack mounting beam is connected with the third boss, and the bottom surface of the third boss and the bottom surface of the battery pack mounting beam are located on the same plane.

[0024] In some embodiments of the present application, the vehicle body structure further comprises:

[0025] The sealing structure is arranged at least partially around the circumferential side of the through hole, and the sealing structure is sealingly connected with the battery pack when the battery pack is located in the battery pack mounting cavity.

[0026] In some embodiments of the present application, the vehicle body structure further comprises:

[0027] The two rear longitudinal beams are arranged spaced apart in the width direction of the vehicle.

[0028] A rear cross beam is connected between the two rear longitudinal beams and is provided with at least one rear battery pack mounting point; in the height direction of the vehicle, the rear battery pack mounting point and the front battery pack mounting point are not in the same plane.

[0029] In some embodiments of the present application, the vehicle body structure further comprises:

[0030] A seat cross beam is arranged between the two battery pack mounting beams; in the height direction of the vehicle, the sealing structure further extends below the seat cross beam and the rear cross beam.

[0031] According to a second aspect of the present application, the present application provides a vehicle comprising:

[0032] A battery pack; and

[0033] The vehicle body structure of any one of the first aspect, the battery pack is at least part of the recessed area on the connecting plate of the vehicle body structure. Advantages

[0034] The present application sets the battery pack mounting beam and the connecting plate at the front end of the battery pack mounting beam, so that the battery pack can be accommodated in the recessed area on the connecting plate and fixed by the two battery pack mounting beams. The setting of the recessed area and the battery pack mounting beam can not only improve the stability of the battery pack assembly, but also improve the stiffness of the vehicle body structure, so that the battery pack is safer in a collision. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description of embodiments of the present application taken in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, but do not limit the present application. In the drawings, the same reference numerals represent the same components or steps throughout.

[0036] FIG. 1 is a top view of a vehicle body structure provided by the present application;

[0037] FIG. 2 is a bottom view of a vehicle body structure provided by the present application;

[0038] FIG. 3 is a sectional view of A-A in FIG. 1;

[0039] FIG. 4 is a sectional view of B-B in FIG. 2;

[0040] FIG. 5 is one of the schematic diagrams of force transmission in a frontal collision of the vehicle body structure provided by the present application;

[0041] FIG. 6 is another schematic diagram of force transmission in a frontal collision of the vehicle body structure provided by the present application;

[0042] FIG. 7 is a schematic diagram of force transmission in a side collision of the vehicle body structure provided by the present application;

[0043] Fig. 8 is a side impact energy absorption diagram of the vehicle body structure provided by the present application;

[0044] Fig. 9 is a cross-sectional view of the battery pack mounting points in the longitudinal direction of the vehicle body structure provided by the present application;

[0045] Fig. 10 is an energy absorption position diagram of the vehicle body structure provided by the present application.

[0046] Reference signs: 1, battery pack mounting beam; 101, second battery pack mounting point; 102, energy absorption space; 2, connecting plate; 201, recessed area; 202, first boss; 203, front battery pack mounting point; 204, energy absorption cavity; 3, through hole; 4, front longitudinal beam; 401, subframe mounting point; 402, second boss; 5, rocker beam; 6, connecting member; 7, seat cross beam; 701, first battery pack mounting point; 8, rear longitudinal beam; 801, third boss; 9, sealing structure; 901, fourth boss; 10, rear cross beam; 1001, rear battery pack mounting point; 11, central passage; 12, battery pack. Embodiments of the present application

[0047] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments are illustrative only and do not limit the scope of the present application unless otherwise specifically stated.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0049] Techniques and equipment known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0050] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0051] It should be noted that like numbers and letters refer to like items throughout the drawings, and that, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0052] In order to understand the present application, a detailed description of the structure will be presented in the following description, in order to explain the technical solutions proposed by the present application. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can have other embodiments.

[0053] As shown in FIGS. 1-10, according to one aspect of the present application, a vehicle body structure is provided, which includes a battery pack mounting beam 1 and a connecting plate 2.

[0054] The width direction X of the vehicle, the front-rear direction Y of the vehicle, and the height direction Z of the vehicle are shown in FIGS. 1-10.

[0055] Two battery pack mounting beams 1 are arranged in the width direction X of the vehicle and extend in the front-rear direction of the vehicle.

[0056] The connecting plate 2 is located at the front end of the two battery pack mounting beams 1, and a recessed area 201 is formed on the connecting plate 2.

[0057] In the height direction Z of the vehicle, the recessed area 201 is recessed upward, and the recessed area 201 forms part of a battery pack mounting cavity.

[0058] As an example of the present application, the connecting plate 2 is arranged at the front end of the two battery pack mounting beams 1 and is formed with a recessed area 201 for accommodating a battery pack, so that part of the battery pack can fit in the recessed area 201, while the two side edges are fixed on the battery pack mounting beams 1, which on the one hand improves the stability of the battery pack assembly, i.e., the end and side edges of the battery pack are protected, and on the other hand, the arrangement of the two battery pack mounting beams 1 can improve the stiffness of the vehicle body structure, and when the vehicle is subjected to a frontal collision, the force from the front side of the vehicle body structure is guided to the two battery pack mounting beams 1 through the connecting plate 2, and then transmitted to the rear side of the vehicle through the battery pack mounting beams 1, thereby dispersing the collision force and reducing the risk of the battery pack being crushed by the collision, thereby improving the safety performance of the battery pack.

[0059] Optionally, as shown in FIGS. 1, 2, and 4, in the height direction of the vehicle, the vehicle body structure is provided with a through hole 3, so that when the battery pack is located in the battery pack mounting cavity, at least part of the upper surface of the battery pack can form the floor of the vehicle body structure.

[0060] In this embodiment, the through hole is a hole that can communicate the upper and lower sides of the floor of the vehicle body structure (in this embodiment, there is no separate floor structure), and when the battery pack is assembled in the battery pack mounting cavity, the upper surface of the battery pack forms the floor of the vehicle body structure at the position of the through hole 3, thereby eliminating the traditional floor and reducing the weight of the vehicle body structure. In addition, the through hole 3 can form a closed-loop force transmission structure to improve the safety of the vehicle in a collision.

[0061] Optionally, as shown in FIGS. 1, 2, and 4, in the height direction of the vehicle, the connecting plate 2 is further formed with a first boss 202 that protrudes downward, and at least one front battery pack mounting point 203 is arranged on the first boss 202, which is used to fix the battery pack.

[0062] In the embodiment, the first boss 202 is arranged to provide a front mounting point for the battery pack, i.e., at least one front battery pack mounting point 203 is arranged on the first boss 202 to enable the front end of the battery pack to be fixed on the connecting plate 2, thereby improving the dynamic stiffness of the battery pack. Meanwhile, the rear side of the battery mounting cavity can be fixed on the rear side cross beam, so that the installation of the entire battery pack is more stable. The plurality of front battery pack mounting points 203 can be arranged in a row in the width direction X of the vehicle, and the shape of the recessed area 201 can be designed according to actual needs, which is usually adapted to the shape of the battery pack and the components located at the side of the battery pack receiving cavity, and the present application does not limit this.

[0063] Further, as shown in FIGS. 2, 4 and 10, in the height direction Z of the vehicle, the first boss 202 protrudes downward, and the battery pack is arranged in the upwardly recessed recessed area 201, so that an energy absorption cavity 204 is formed at the front side of the battery pack (i.e., at the position of the first boss 202), which can absorb collision energy and form a certain buffer for the force transmitted by the vehicle in a frontal collision without increasing the vehicle body structure parts, thereby reducing the energy transmitted to the battery pack in the frontal collision condition.

[0064] Optionally, as shown in FIGS. 1-2 and 5-6, the vehicle body structure further comprises a front longitudinal beam 4, which is connected with the connecting plate 2, and at least a portion of the front longitudinal beam 4 is arranged on the front side of the connecting plate 2.

[0065] As an example of the present application, the front longitudinal beam 4 is connected with the connecting plate 2 and at least a portion thereof is located on the front side of the connecting plate 2, which can guide the force in a frontal collision to be transmitted longitudinally to the battery pack mounting beam 1 and laterally to the connecting plate 2, and then the force is transmitted and absorbed through the guidance of the connecting plate 2 and the battery pack mounting beam 1, thereby avoiding the battery pack from being squeezed and improving the safety of the vehicle. It should be noted that the "longitudinal" direction of the present application refers to the front-rear direction Y of the vehicle, and the "lateral" direction refers to the width direction X of the vehicle.

[0066] In actual application, a central passage 11 can be arranged at the middle position of the connecting plate 2 in the width direction X of the vehicle, so that the force transmitted to the connecting plate 2 can be transmitted through the central passage 11, further dispersing the force in a frontal collision and improving the stiffness of the vehicle body structure and the safety of the vehicle.

[0067] Optionally, as shown in FIGS. 1-2 and 5, the front longitudinal beam 4 is arranged in two, and the two front longitudinal beams 4 are arranged in the width direction of the vehicle; and the connecting plate 2 is connected between the two front longitudinal beams 4 in the width direction of the vehicle.

[0068] As an example of the present application, two front longitudinal beams 4 are arranged at both ends of the connecting plate 2, so that the force of the frontal collision can be transmitted to the connecting plate 2 through the front longitudinal beams 4 on both sides, increasing the force transmission path in the front-rear direction Y of the vehicle, absorbing and dispersing the collision force on the front side of the battery pack, and improving the body stiffness.

[0069] Optionally, as shown in FIGS. 1-2 and 5-10, the body structure further comprises a rocker beam 5, the front longitudinal beam 4 is connected with the rocker beam 5, and a subframe mounting point 401 is arranged on the front longitudinal beam 4, which is arranged on the extension line of the battery pack mounting beam 1 in the front-rear direction Y of the vehicle.

[0070] Through the above arrangement, the side impact force that the rocker beam 5 can withstand can be improved, and a longitudinal force transmission path for the frontal impact force of the vehicle is formed to ensure the stiffness of the body structure. The subframe mounting point 401 is extended to the extension direction of the battery pack mounting beam 1, so that the increased battery pack mounting beam 1 can just add a force transmission path to the rear section of the front longitudinal beam 4, reducing the damage to the human body and the battery pack in the rear high-speed collision and side column collision, and improving the safety of the vehicle.

[0071] Optionally, as shown in FIGS. 1-2 and 5-10, the rocker beam is provided with two, one of the battery pack mounting beams 1 is arranged in the width direction X of the vehicle. The vehicle is arranged in the width direction X of the vehicle, and the two rocker beams 5 are respectively located on the outer side of the corresponding battery pack mounting beam 1.

[0072] As an example of the present application, as shown in FIG. 2, two battery pack mounting beams 1 are arranged on the left and right sides of the body structure, and two rocker beams 5 are arranged on the outer side of the two battery pack mounting beams 1 respectively. The battery pack mounting beam 1 and the rocker beam 5 are arranged in a spaced manner and form a gap, so that in the side impact direction, the gap between the battery pack mounting beam 1 and the rocker beam 5 can form an energy absorption space 102 to absorb energy for side impact, further reducing the damage to the human body and the battery pack in the rear high-speed collision and side column collision. In practical application, the gap between the rocker beam 5 and the battery pack mounting beam 1 can be designed to be about 120mm, which can be designed according to the actual demand of the vehicle, and the present application does not limit it.

[0073] Optionally, as shown in FIGS. 1-2 and 3, the two battery pack mounting beams 1 are connected by a connecting piece 6 between the corresponding rocker beams 5, and a seat cross beam 7 is arranged between the two battery pack mounting beams 1, and the connecting piece 6 and the seat cross beam 7 are arranged opposite to each other in the width direction of the vehicle.

[0074] As an example of the present application, two or three seat cross beams 7 can be provided for mounting and supporting the seats in the passenger compartment. The seat cross beams 7 are arranged to form a plurality of mouth-shaped structures with the connecting plate 2 and the battery pack mounting beam 1, and the mouth-shaped structures form a closed-loop force transmission structure, so that the battery pack area can avoid the deformation area of the vehicle body structure during a side impact, thereby improving the safety of the vehicle and providing protection for the battery pack collision safety and the integration of the vehicle body structure and the battery.

[0075] Optionally, as shown in FIGS. 2 and 4, in the height direction Z of the vehicle, a second boss 402 protruding downward is formed on the front longitudinal beam 4, and at least a portion of the connecting plate 2 is connected to the second boss 402.

[0076] In the present embodiment, the second boss 402 on the front longitudinal beam 4 is connected to at least a portion of the connecting plate 2, which is beneficial to the integrity of the vehicle body structure and the formation of the force transmission path of the vehicle body structure, thereby improving the stiffness and integration of the vehicle body structure.

[0077] Optionally, the front end of the battery pack mounting beam 1 is connected to the second boss 402, and a first boss 202 protruding downward is further formed on the connecting plate 2 in the height direction of the vehicle, and the bottom surface of the first boss 202, the bottom surface of the second boss 402, and the bottom surface of the battery pack mounting beam 1 are located on the same plane.

[0078] As an example of the present application, the battery pack mounting beam 1, the connecting plate 2, and the front longitudinal beam 4 are connected to each other, which is beneficial to the integration of the vehicle body structure. At the same time, the lower surfaces of the battery pack mounting beam 1, the connecting plate 2, and the front longitudinal beam 4 are located on the same plane, which further improves the overall structural stiffness and integration of the three components.

[0079] Optionally, as shown in FIGS. 1 to 2 and FIGS. 5 to 7, the vehicle body structure further includes a rear longitudinal beam 8, at least a portion of the rear longitudinal beam 8 is located on the rear side of the battery pack mounting beam 1, and a third boss 801 protruding downward is formed on the rear longitudinal beam 8 in the height direction Z of the vehicle; the rear end of the battery pack mounting beam 1 is connected to the third boss 801, and the bottom surface of the third boss 801 and the bottom surface of the battery pack mounting beam 1 are located on the same plane.

[0080] As an example of the present application, the rear longitudinal beam 8 is arranged to form a force transmission path with the battery pack mounting beam 1, and is capable of absorbing the impact force in the event of a frontal collision, side collision, or rear collision, thereby improving the integration of the overall vehicle body structure. Meanwhile, the lower surfaces of the rear longitudinal beam 8 and the battery pack mounting beam 1 are in the same plane, thereby further improving the overall structural rigidity.

[0081] Optionally, as shown in FIGS. 1-2, the vehicle body structure further comprises a sealing structure 9, at least a portion of which is arranged around the periphery of the through hole 3, and is adapted to be sealingly connected with the battery pack when the battery pack is located in the battery pack mounting cavity.

[0082] As an example of the present application, the sealing structure 9 is arranged to extend around the periphery of the through hole 3, so that when the battery pack is assembled in the battery pack mounting cavity, the sealing structure 9 can form a seal on both the upper and lower sides of the battery pack, thereby preventing sewage and debris from the bottom of the vehicle from entering the interior of the vehicle through the through hole 3. Moreover, the sealing structure 9 can be arranged in the same plane as the recessed area 201 of the connecting plate 2, so that the battery pack mounting cavity can extend in the length direction (front of the vehicle) of the vehicle, thereby enabling a larger capacity battery pack to be installed.

[0083] Optionally, as shown in FIG. 4, in the height direction Z of the vehicle, the sealing structure 9 has a fourth boss 901 that protrudes upward; at least a portion of the connecting plate 2 and the front longitudinal beam 4 are arranged on the upper side of the sealing structure 9 and extend to the front side of the fourth boss 901, and the strength of the sealing structure 9 is higher than that of the connecting plate 2.

[0084] As an example of the present application, the fourth boss 901 is designed on the sealing structure 9, which on the one hand can improve the sealing performance of the sealing structure 9, and on the other hand, by arranging the connecting plate 2 and the front longitudinal beam 4 on the upper side of the sealing structure 9 and making the strength of the sealing structure 9 higher than that of the connecting plate 2, the rear section of the connecting plate 2 and the rear section of the front longitudinal beam 4 can be guided to deform and intrude upward of the battery pack, thereby protecting the battery pack.

[0085] Optionally, as shown in FIGS. 1-2 and 5-9, the vehicle body structure further comprises a rear cross beam 10 and two rear longitudinal beams 8, the two rear longitudinal beams 8 are arranged in a spaced manner in the width direction X of the vehicle, the rear cross beam 10 is connected between the two rear longitudinal beams 8, and at least one rear battery pack mounting point 1001 is arranged on the rear cross beam 10, the rear battery pack mounting point 1001 and the front battery pack mounting point 203 are not in the same plane in the height direction Z of the vehicle.

[0086] As an example of the present application, for the surplus force coming from the front of the vehicle, the battery pack mounting point must bear shear force, according to the force, vector summation relationship, at this time the shear force of the battery pack on this plane is the maximum, easy to cause the mounting point to fall off, fracture and other problems, the front battery pack mounting point 203 and the rear battery pack mounting point 1001 are arranged on different planes, which can improve the stability of the battery pack installation.

[0087] Optionally, as shown in FIGS. 1-2 and 9, the vehicle body structure further comprises a plurality of seat cross beams 7, a plurality of first battery pack mounting points 701 are arranged on the seat cross beams 7, and a plurality of second battery pack mounting points 101 are further arranged on the battery pack mounting beam 1, in the height direction of the vehicle, the first battery pack mounting points 701 are not on the same plane as the front battery pack mounting point 203 and / or the rear battery pack mounting point 1001.

[0088] In the present embodiment, the arrangement of the first battery pack mounting points 701 and the second battery pack mounting points 101 makes the installation of the battery pack more stable, while the first battery pack mounting points 701 are not on the same plane as the front battery pack mounting point 203 and / or the rear battery pack mounting point 1001. The safety of the battery pack can be further improved.

[0089] Optionally, a seat cross beam 7 is further arranged between the two battery pack mounting beams 1, and in the height direction of the vehicle, the sealing structure 9 further extends below the seat cross beam 7 and the rear cross beam 10, further improving the sealing performance of the sealing structure 9.

[0090] According to a second aspect of the present application, referring to FIGS. 1-10, a vehicle is provided, which comprises a battery pack (not shown in the figure) and the vehicle body structure of the first aspect, at least a part of the battery pack is located in the recessed area 201 on the connecting plate 2 of the vehicle body structure.

[0091] The vehicle provided in the present embodiment adopts the vehicle body structure provided in the first aspect, and the battery pack is assembled in the battery pack mounting cavity, the recessed area 201 on the connecting plate 2 of the vehicle body structure is configured as a part of the battery pack mounting cavity, so that at least a part of the battery pack is located in the recessed area 201 on the connecting plate 2 of the vehicle body structure, which can avoid the battery pack being squeezed, and improves the safety of the vehicle.

[0092] Although example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above-described example embodiments are merely exemplary and are not intended to limit the scope of the present application. Those of ordinary skill in the art can make various changes and modifications without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as claimed in the appended claims.

[0093] Similarly, it is to be understood that the embodiments of the present application can be used in the exact opposite way of that described in the exemplary embodiments of the present application, and that the present application should not be construed as reflecting a limitation of the scope of the claimed application except to the extent that the description explicitly states otherwise. Similarly, it should be understood that, in order to concisely discuss the various embodiments of the present application, various features of the present application are sometimes grouped together in a single embodiment, figure, or description of related features. However, this description should not be interpreted as reflecting a necessity or desirability that the claimed application require more features than are explicitly recited in each claim. Rather, the application point is that a corresponding technical problem can be solved with less than all of the features of a single disclosed embodiment, as reflected by the corresponding claims. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as part of this detailed description.

[0094] Furthermore, to one of ordinary skill in the art, these and other modifications to, and

[0095] It is noted that the foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting of the present application. While the application has been described with reference to various embodiments, it is understood that the application should not be limited to a few embodiments described but should be given to the protection intended to the scope of the claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The use of the words "first", "second" and "third", etc. does not imply any order but rather are to be construed as names.

Claims

1. A vehicle body structure, wherein, The vehicle body structure comprises: a battery pack mounting beam (1) extending in the front-rear direction of the vehicle, two of the battery pack mounting beams being arranged in the width direction (X) of the vehicle at intervals; and a connecting plate (2) arranged at the front end of the two battery pack mounting beams and provided with a recessed area (201), the recessed area being recessed upward in the height direction (Z) of the vehicle to form part of a battery pack mounting cavity.

2. The vehicle body structure according to claim 1, wherein In the height direction of the vehicle, the vehicle body structure is provided with a through hole (3) such that at least part of the upper surface of the battery pack can form the floor of the vehicle body structure when the battery pack is located in the battery pack mounting cavity.

3. The vehicle body structure according to claim 2, wherein In the height direction of the vehicle, the connecting plate is further provided with a first boss (202) that is protruded downward, and the first boss is provided with at least one front battery pack mounting point (203) for fixing the battery pack.

4. The vehicle body structure according to any one of claims 1 to 3, wherein The vehicle body structure further comprises: a front longitudinal beam (4) connected to the connecting plate and arranged at least in part on the front side of the connecting plate.

5. The vehicle body structure according to claim 4, wherein Two of the front longitudinal beams are arranged in the width direction of the vehicle at intervals; In the width direction of the vehicle, the connecting plate is connected between the two front longitudinal beams.

6. The vehicle body structure according to claim 4 or 5, wherein The vehicle body structure further comprises: a rocker beam (5) connected to the front longitudinal beam and provided with a subframe mounting point (401) arranged on the extension line of the battery pack mounting beam in the front-rear direction (Y) of the vehicle.

7. The vehicle body structure of claim 6, wherein, Two of the rocker beams are arranged in the width direction of the vehicle at intervals, one of the battery pack mounting beams and one of the rocker beams being arranged at intervals, and the two rocker beams being respectively located on the outer side of the corresponding battery pack mounting beam.

8. The vehicle body structure of claim 7, wherein, The two battery pack mounting beams are connected by a connecting member (6) between the corresponding rocker beam, and a seat cross beam (7) is arranged between the two battery pack mounting beams in the width direction of the vehicle, the connecting member and the seat cross beam being arranged opposite to each other.

9. The vehicle body structure according to any one of claims 4 to 8, wherein In the height direction of the vehicle, the front longitudinal beam is provided with a second boss (402) that is protruded downward, and at least part of the connecting plate is connected to the second boss.

10. The vehicle body structure of claim 9, wherein, The front end of the battery pack mounting beam is connected to the second boss, and in the height direction of the vehicle, the connecting plate is further provided with a first boss that is protruded downward, the bottom surface of the first boss, the bottom surface of the second boss, and the bottom surface of the battery pack mounting beam being located on the same plane.

11. The vehicle body structure according to any one of claims 1 to 10, wherein The vehicle body structure further comprises: a rear longitudinal beam (8) arranged at least in part on the rear side of the battery pack mounting beam and provided with a third boss (801), the third boss being protruded downward in the height direction of the vehicle; The rear end of the battery pack mounting beam is connected to the third boss, and the bottom surface of the third boss and the bottom surface of the battery pack mounting beam are located on the same plane.

12. The vehicle body structure of claim 3, wherein, The vehicle body structure further comprises: a sealing structure (9) arranged at least in part around the circumferential side of the through hole, the sealing structure being sealingly connected to the battery pack when the battery pack is located in the battery pack mounting cavity.

13. The vehicle body structure of claim 12, wherein, The vehicle body structure further comprises: two rear side members (8) disposed at intervals in the width direction of the vehicle; a rear cross member (10) connected between the two rear side members and provided with at least one rear battery pack mounting point (1001), the rear battery pack mounting point and the front battery pack mounting point not being in the same plane in the height direction of the vehicle.

14. The vehicle body structure of claim 13, wherein, The vehicle body structure further comprises: a seat cross member (7) disposed between the two battery pack mounting beams, the sealing structure further extending under the seat cross member and the rear cross member in the height direction of the vehicle.

15. A vehicle, wherein, comprising: a battery pack; and The vehicle body structure of any one of claims 1-14, at least a portion of the battery pack being located in a recessed area on the connecting panel of the vehicle body structure.

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