Vehicle body structure and vehicle

Abstract

The utility model discloses a vehicle body structure and a vehicle, and the vehicle body structure comprises a box body which is suitable for accommodating an electrical part; a left rear longitudinal beam and a right rear longitudinal beam are arranged in the width direction of an automobile body at intervals, and the box body is located between the left rear longitudinal beam and the right rear longitudinal beam. The safety of the electrical component can be improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more specifically, to a vehicle body structure and a vehicle. Background Art

[0002] In the prior art, a vehicle needs to be equipped with electrical components, such as batteries, on-board chargers, etc. The batteries provide low-voltage power to the vehicle, and the on-board chargers convert alternating current (AC) into direct current (DC) for charging the power battery. The current placement of electrical components is not safe for the electrical components. Summary of the invention

[0003] One object of the present application is to provide a new technical solution for a vehicle body structure and a vehicle.

[0004] To achieve the above objectives, according to the first aspect of the present application, a vehicle body structure is provided, comprising: a box body, which is suitable for accommodating electrical components; a left rear longitudinal beam and a right rear longitudinal beam are arranged at intervals in the width direction of the vehicle body, and the box body is located between the left rear longitudinal beam and the right rear longitudinal beam.

[0005] Optionally, the vehicle body structure further comprises a rear cross beam, which is arranged at the rear of the box body in the front-rear direction of the vehicle body, and whose two ends are respectively connected to the left rear longitudinal beam and the right rear longitudinal beam.

[0006] Optionally, the vehicle body structure further comprises a front cross beam, which is arranged in front of the box body in the front-rear direction of the vehicle body, and whose two ends are respectively connected to the left rear longitudinal beam and the right rear longitudinal beam.

[0007] Optionally, in the vehicle body height direction, the box body is located below the seat, and the projection of the box body (100) in the vehicle body height direction at least partially overlaps with the projection of the seat in the vehicle body height direction.

[0008] Optionally, the box body has a front flange and a rear flange, the box body overlaps the front beam through the front flange, the box body overlaps the rear beam through the rear flange, a mounting bracket is provided in the box body, the mounting bracket is provided with reinforcing ribs in the X direction, the mounting bracket overlaps the front flange of the box body and the rear flange of the box body, and the reinforcing ribs extend from the overlapping position of the mounting bracket and the front flange to the overlapping position of the mounting bracket and the rear flange.

[0009] Optionally, there is a gap between the box body and at least a portion of the mounting bracket.

[0010] Optionally, the vehicle body structure further includes a seat mounting beam, both ends of which are connected to the door sill beam, and a projection of the seat mounting beam in the vehicle body height direction at least partially overlaps with a projection of the front cross beam in the vehicle body height direction.

[0011] Optionally, the vehicle body structure further includes a left sill beam and a right sill beam, the left sill beam is connected to the left rear longitudinal beam, and the right sill beam is connected to the right rear longitudinal beam; in the width direction of the vehicle body, the left sill beam is arranged on a side of the left rear longitudinal beam away from the box body, and the right sill beam is arranged on a side of the right rear longitudinal beam away from the box body.

[0012] Optionally, a projection of the left sill beam in the width direction of the vehicle body, a projection of the right sill beam in the width direction of the vehicle body and a projection of the box body in the width direction of the vehicle body at least partially overlap; and / or

[0013] The projection of the left rear longitudinal beam in the width direction of the vehicle body, the projection of the right rear longitudinal beam in the width direction of the vehicle body, and the projection of the box body in the width direction of the vehicle body at least partially overlap.

[0014] Optionally, the left sill beam, the left rear longitudinal beam and a floor form a first cavity, and / or the right sill beam, the right rear longitudinal beam and the floor form a first cavity.

[0015] Optionally, the vehicle body structure further includes a C-pillar and a roof cross beam, the upper end of the C-pillar is connected to the roof cross beam, the lower end of the C-pillar is connected to the left sill beam and the right sill beam, the rear cross beam of the vehicle body structure, the C-pillar, the left sill beam, the right sill beam, and the roof cross beam form a closed annular structure, and the projection of the C-pillar in the vehicle body width direction at least partially overlaps with the projection of the box body in the vehicle width direction.

[0016] According to a second aspect of the present application, a vehicle is provided, comprising:

[0017] A vehicle body structure as described in any of the preceding items.

[0018] Optionally, the vehicle further includes a battery pack, and in the vehicle body height direction, the battery pack is located below the box body, and a projection of the box body in the vehicle body height direction at least partially overlaps with a projection of the battery pack in the vehicle body height direction.

[0019] Since the vehicle body structure of the present application is provided with a box body, and the box body is located between the left rear longitudinal beam and the right rear longitudinal beam, after the electrical components are accommodated in the box body, they can be better protected than in the front cabin, thereby improving safety.

[0020] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0022] Figure 1 is a three-dimensional diagram of a vehicle body structure of an embodiment of the present application, showing the structure below the vehicle body in a bottom-up manner;

[0023] Figure 2 yes Figure 1 A partial enlarged view of the vehicle body structure;

[0024] Figure 3 is a three-dimensional diagram of a vehicle body structure of an embodiment of the present application, showing the structure above the vehicle body in a top view;

[0025] Figure 4 is a cross-sectional view of a box body of an embodiment of the present application;

[0026] Figure 5 is along Figure 2 Cross-sectional view of line CC in;

[0027] Figure 6 is along Figure 2 The cross-sectional view of line BB in FIG.

[0028] Figure 7 is along Figure 2 The cross-sectional view of line AA in the figure;

[0029] Figure 8 It is a cross-sectional view of the vehicle body structure of an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Left rear longitudinal beam; 2. Left door sill beam; 3. Rear floor; 4. Front floor; 5. Floor; 6. Right rear longitudinal beam; 7. Connecting plate; 8. Seat mounting beam; 9. Rear cross beam; 10. Front cross beam; 11. Door sill reinforcement plate; 16. Seat anti-skid plate; 17. Right door sill beam; 18. Gap; 19. Connection point; 20. Battery pack; 21. Door sill reinforcement plate connecting plate; 22. Wheel arch reinforcement plate; 23. Wheel arch outer plate; 24. C-pillar inner plate; 25. C-pillar reinforcement plate; 26. Side upper beam reinforcement plate; 27. Top cover cross beam; 100. Box body; 101. Cover plate; 102. Box body mounting plate; 103. Box body connecting plate; 104. Front flange; 105. Mounting bracket; 106. Rear flange; 107. Reinforcement rib. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] It should be noted that: the X direction refers to the length direction of the vehicle body, the Y direction refers to the width direction of the vehicle body, the Z direction refers to the height direction of the vehicle body, "horizontal" refers to the length along the Y direction, "vertical" refers to the length along the X direction, "up" refers to closer to the roof, "down" refers to closer to the ground, "front" refers to closer to the front of the vehicle, "rear" refers to closer to the rear of the vehicle, and "left" and "right" refer to the opposite sides in the Y direction.

[0038] like Figures 1 to 4 As shown, the vehicle body structure of this embodiment includes: a box body 100, which is suitable for accommodating electrical components. A left rear longitudinal beam 1 and a right rear longitudinal beam 6 are arranged at intervals in the width direction of the vehicle body, and the box body 100 is located between the left rear longitudinal beam 1 and the right rear longitudinal beam 6.

[0039] Specifically, in Figure 4In the embodiment shown, the box body 100 is assembled from a plurality of plates. The box body 100 includes a box body mounting plate 102 and a box body connecting plate 103. The box body mounting plate 102 is a plate in the shape of a figure four. The box body connecting plate 103 connects the box body mounting plate 102 to form a shape with an upper opening. In other embodiments, the box body 100 can also be stamped into a whole by other separate plates, or directly stamped into a depression as the box body 100 by the floor 5. The box body 100 is suitable for accommodating electrical parts, such as batteries, vehicle chargers or relays. In this application, the battery is suitable for providing a low-voltage power supply for the vehicle, and the low-voltage power supply is usually used to power conventional low-voltage electrical appliances such as lighting systems, entertainment systems, and wipers. The high-voltage power supply usually provides power for high-voltage equipment such as electric drive systems, DC / DC voltage converters, and electric air conditioners. Therefore, the battery is a low-voltage power supply, which is different from the high-voltage power supply of the power battery in the battery pack described later. The on-board charger (OBC) is used to convert alternating current (AC) into direct current (DC) for charging the power battery.

[0040] In this embodiment, a cover plate 101 is also provided, and the cover plate 101 is connected to the floor 5 and closes the opening of the box body 100. The cover plate 101 can be connected to the floor 5 by bolts, rivets, etc. The cover plate 101 can not only provide a support surface for the seat above, but also protect the battery in the box body 100 from being affected, and provide a relatively sealed environment for the box body. Here, the cover plate 101 closes the opening of the box body 100, which does not mean that the box body 100 is completely sealed, and the box body 100 can reserve wiring holes, etc. The box body 100 can be sealed with glue during the painting process to form an enclosed space to meet the water sealing requirements.

[0041] In the width direction of the vehicle body, i.e., the Y direction, a left rear longitudinal beam 1 and a right rear longitudinal beam 6 are spaced apart, and the box body 100 is located between the left rear longitudinal beam 1 and the right rear longitudinal beam 6. That is to say, the box body 100 is not located in the front cabin, but is located below the passenger cabin or luggage cabin behind the front cabin.

[0042] In the embodiment of the present application, since the electrical components can be placed in the box body 100, and the box body 100 is located between the left rear longitudinal beam 1 and the right rear longitudinal beam 6, compared with the front cabin, the space environment between the left rear longitudinal beam 1 and the right rear longitudinal beam 6 behind the front cabin is better, thereby forming good protection for the electrical components. The left rear longitudinal beam 1 and the right rear longitudinal beam 6 can also provide side collision, front collision and rear collision protection for the electrical components.

[0043] like Figure 1As shown, the vehicle body structure of this embodiment further includes a rear cross beam 9, which is arranged at the rear of the box body 100 in the X direction (i.e., the front-rear direction of the vehicle body). The two ends of the rear cross beam 9 are respectively connected to the left rear longitudinal beam 1 and the right rear longitudinal beam 6. The rear cross beam 9 can improve the rigidity between the left rear longitudinal beam 1 and the right rear longitudinal beam 6, so that the vehicle body structure has better side collision prevention performance and protects the electrical components in the box body 100.

[0044] like Figure 1 As shown, the vehicle body structure of this embodiment also includes a front crossbeam 10. In the X direction (i.e., in the front and rear direction of the vehicle body), the front crossbeam 10 is arranged in front of the box body 100, and the two ends of the front crossbeam 10 are respectively connected to the left rear longitudinal beam 1 and the right rear longitudinal beam 6, so that the front crossbeam 10, the rear crossbeam 9, the left rear longitudinal beam 1 and the right rear longitudinal beam 6 form a "mouth" shape. Therefore, the box body 100 is located inside the "mouth". The advantage of this structure is that the "mouth" shape forms a stable force transmission structure, which can fully and effectively resist damage to the electrical components in the box body 100 when a head-on collision or a side collision occurs.

[0045] like Figure 1 As shown, the vehicle body structure in this embodiment further includes a floor 5, which is connected to the front cross beam 10, the rear cross beam 9, the left rear longitudinal beam 1, and the right rear longitudinal beam 6. The floor 5 includes a front floor 4 and a rear floor 3, and the box body 100 is arranged on the rear floor 3. The connection surfaces of the front floor 4 and the left rear longitudinal beam 1 and the right rear longitudinal beam 6, and the connection surfaces of the front floor 4 and the rear floor 3 are at the same height in the vehicle body height direction.

[0046] Specifically, the front floor 4 and the rear floor 3 can be two floors or two parts formed by bending a floor. The front floor 4 can be the floor of the passenger compartment, and the rear floor 3 can be the floor of the luggage compartment. The connection surface between the front floor 4 and the left rear longitudinal beam 1 and the right rear longitudinal beam 6, and the connection surface between the front floor 4 and the rear floor 3 are at the same height in the vehicle body height direction. For electric vehicles, a larger Y-direction dimension can be provided for the battery pack 20, so that the Y-direction dimension of the battery pack 20 can be extended to the left sill beam 2 and the right sill beam 17, thereby increasing the capacity of the battery pack 20 and improving the endurance. At the same time, there is no structure between the left sill beam 2 and the right sill beam 17 that is lower than the floor 5, so a longer battery pack 20 can be arranged in the X direction to improve the endurance.

[0047] In this embodiment, in the height direction of the vehicle body, the box body 100 is located below the seat, and the projection of the box body 100 in the height direction of the vehicle body at least partially overlaps with the projection of the seat in the height direction of the vehicle body.

[0048] Specifically, the box body 100 is located below the seat, which means that the box body 100 is closer to the ground than the seat, or closer to the bottom of the vehicle. The projection of the box body 100 in the height direction of the vehicle body can be the orthographic projection of the box body 100 toward the roof, or the orthographic projection toward the ground. Similarly, the projection of the seat in the height direction of the vehicle body can also be the orthographic projection of the seat toward the roof, or the orthographic projection toward the ground. When the box body and the seat are projected toward the ground or the roof at the same time, the two projections at least partially overlap. This structure can use the seat (not shown) to resist the top pressure from above and protect the battery in the box body 100.

[0049] like Figure 4 As shown, the box body 100 has a front flange 104 and a rear flange 106. The box body 100 overlaps the front cross beam 10 through the front flange 104, and the box body 100 overlaps the rear cross beam 9 through the rear flange 106. This structure can enhance the strength and mode of the entire "mouth"-shaped structure, resist the energy generated by the surrounding collision, further protect the battery from being squeezed, and protect the safety of the passenger compartment.

[0050] like Figure 4 As shown, a mounting bracket 105 is provided in the box body 100, and the mounting bracket 105 is provided with reinforcing ribs, and the mounting bracket 105 overlaps with the front flange 104 and the rear flange 106. In the X direction, the reinforcing rib 107 extends from the overlapping position of the mounting bracket 105 and the front flange 104 to the overlapping position of the mounting bracket 105 and the rear flange 106.

[0051] Specifically, the mounting bracket 105 is used to mount the battery. The reinforcing ribs extending in the X direction of the mounting bracket 105 can improve the structural strength of the entire box body 100. The mounting bracket 105 overlaps the front flange 104 and the rear flange 106, and can also be regarded as overlapping the front crossbeam 10 and the rear crossbeam 9, meeting the strength and durability requirements of the battery installed inside.

[0052] like Figure 6 As shown, in this embodiment, the box body 100 and the mounting bracket 105 are not completely fitted together, and there is a gap 18 between the box body 100 and at least a portion of the mounting bracket 105. The gap 18 ensures the leakage requirement during the electrophoresis process on the one hand, and ensures the installation requirement of the battery on the other hand, and prevents the bolts from directly hitting the box body 100 during installation to damage the sealing of the box body 100.

[0053] like Figure 1 , Figure 2 and Figure 5 As shown, the floor 5 is connected to the front cross beam 10 and the rear cross beam 9 to improve the tear resistance of the floor 5 and further protect the box body 100.

[0054] More specifically, the floor 5 includes a front floor 4, a rear floor 3, and a connecting plate 7. The front floor 4 and the rear floor 3 are connected by the connecting plate 7, and the connecting plate 7, the front cross beam 10, and the rear floor 3 overlap to form a fourth cavity Q. The fourth cavity Q can improve the structural strength of the front cross beam 10.

[0055] like Figure 4 and Figure 5 As shown, the vehicle body structure further includes a seat mounting beam 8, both ends of which are connected to the door sill beams, that is, one end of the seat mounting beam 8 is connected to the left door sill beam 2, and the other end is connected to the right door sill beam 17. The projection of the seat mounting beam 8 in the vehicle body height direction at least partially overlaps with the projection of the front cross beam 10 in the vehicle body height direction.

[0056] Specifically, the projection of the seat mounting beam 8 in the vehicle body height direction may be the orthographic projection of the seat mounting beam 8 toward the vehicle roof or the ground. Similarly, the projection of the front cross beam 10 in the vehicle body height direction may also be the orthographic projection toward the vehicle roof or the ground. When the seat mounting beam 8 and the front cross beam 10 are simultaneously projected toward the vehicle roof or the ground, the two projections at least partially overlap, so that the seat mounting beam 8 and the front cross beam 10 can jointly improve the front anti-collision performance of the vehicle, thereby improving the safety of the box body 100.

[0057] In this embodiment, the seat mounting beam 8 overlaps with the connecting plate 7 and the front cross beam 10, and a second cavity N is formed between the seat mounting beam 8 and the rear floor 3. The fourth cavity Q at least partially overlaps with the second cavity N in the vehicle body height direction. Figure 5 As shown, in the Z direction, the fourth cavity Q is located below the second cavity N. The advantage of this structure is that the strength of the vehicle body can be further improved by utilizing the double cavity structure.

[0058] like Figure 6 As shown, the rear cross beam 9 has a cross-section in the shape of a Chinese numeral 9 , and the rear cross beam 9 is connected to the rear floor 3 to form a third cavity P. The third cavity P can improve the structural strength of the vehicle at the rear cross beam 9 .

[0059] like Figure 8 As shown, the vehicle body structure further includes a left sill beam 2 and a right sill beam 17. The left sill beam 2 is connected to the left rear longitudinal beam 1, and the right sill beam 17 is connected to the right rear longitudinal beam 6. In the width direction of the vehicle body, the left sill beam 2 is arranged on the side of the left rear longitudinal beam 1 away from the box body 100, and the right sill beam 17 is arranged on the side of the right rear longitudinal beam 6 away from the box body 100. In this way, the left sill beam 2 and the right sill beam 17 improve the side impact resistance of the vehicle body structure and can also protect the battery in the box body 100.

[0060] In this embodiment, the projection of the left sill beam 2 in the width direction of the vehicle body, the projection of the right sill beam 17 in the width direction of the vehicle body, and the projection of the box body 100 in the width direction of the vehicle body at least partially overlap.

[0061] Specifically, the projection of the left sill beam 2 in the width direction of the vehicle body may be the orthographic projection of the left sill beam 2 toward the rightmost structure of the vehicle body. Similarly, the projection of the right sill beam 17 in the width direction of the vehicle body may be the orthographic projection of the right sill beam 17 toward the rightmost structure of the vehicle body, and the projection of the box body 100 in the width direction of the vehicle body may be the orthographic projection of the box body 100 toward the rightmost structure of the vehicle body. Alternatively, the projection of the left sill beam 2 in the width direction of the vehicle body may be the orthographic projection of the left sill beam 2 toward the leftmost structure of the vehicle body. Similarly, the projection of the right sill beam 17 in the width direction of the vehicle body may be the orthographic projection of the right sill beam 17 toward the leftmost structure of the vehicle body, and the projection of the box body 100 in the width direction of the vehicle body may be the orthographic projection of the box body 100 toward the leftmost structure of the vehicle body. When the right sill beam 17, the box body 100, and the left sill beam 2 are simultaneously projected toward the leftmost structure or the rightmost structure of the vehicle body, the three projections at least partially overlap, and the left sill beam 2 and the right sill beam 17 can be utilized to protect the box body 100 in the event of a side collision.

[0062] In this embodiment, the projection of the left rear longitudinal beam 1 in the width direction of the vehicle body, the projection of the right rear longitudinal beam 6 in the width direction of the vehicle body, and the projection of the box body 100 in the width direction of the vehicle body at least partially overlap.

[0063] Similarly, the projection of the left rear longitudinal beam 1 in the width direction of the vehicle body, the projection of the right rear longitudinal beam 6 in the width direction of the vehicle body, and the projection of the box body 100 in the width direction of the vehicle body can be the positive projection of the left rear longitudinal beam 1, the right rear longitudinal beam 6, and the box body 100 toward the leftmost structure or the rightmost structure of the vehicle body. When the left rear longitudinal beam 1, the box body 100, and the right rear longitudinal beam 6 are simultaneously projected toward the leftmost structure or the rightmost structure of the vehicle body, the three projections at least partially overlap, and the left rear longitudinal beam 1 and the right rear longitudinal beam 6 can be used to protect the box body 100 in the event of a side collision.

[0064] In this embodiment, the projection of the left sill beam 2 in the vehicle body width direction, the projection of the left rear longitudinal beam 1 in the vehicle body width direction, the projection of the box body 100 in the vehicle body width direction, the projection of the right rear longitudinal beam 6 in the vehicle body width direction and the projection of the right sill beam 17 in the vehicle body width direction at least partially overlap. The advantage of this structure is that the four structures of the left rear longitudinal beam 1, the right rear longitudinal beam 6, the left sill beam 2 and the right sill beam 17 can be used to protect the box body 100 in the event of a side collision.

[0065] In this embodiment, a portion of each of the left sill beam 2, the left rear longitudinal beam 1, the box body 100, the right rear longitudinal beam 6 and the right sill beam 17 is located in the same plane perpendicular to the height direction of the vehicle body. In other words, when the left sill beam 2, the left rear longitudinal beam 1, the box body 100, the right rear longitudinal beam 6 and the right sill beam 17 are cut by a plane perpendicular to the Z direction, the left sill beam 2, the left rear longitudinal beam 1, the box body 100, the right rear longitudinal beam 6 and the right sill beam 17 will be cut by the plane at the same time, so that the left sill beam 2, the left rear longitudinal beam 1, the right rear longitudinal beam 6 and the right sill beam 17 can be used to protect the left and right sides of the box body 100.

[0066] like Figure 7 As shown, the left sill beam 2, the left rear longitudinal beam 1 and the floor 5 form a first cavity M. Similarly, the left sill beam 2, the right rear longitudinal beam 6 and the rear floor 3 can also form a first cavity M. Similarly, the right sill beam 17, the right rear longitudinal beam 6 and the floor 5 can also form a first cavity M in the same way. The first cavity M can strengthen the structural strength of the vehicle body structure at the left rear longitudinal beam 1 and the right rear longitudinal beam 6.

[0067] Specifically, in Figure 7 In the embodiment, the left rear longitudinal beam 1, the left sill beam 2 and the rear floor 3 form a first cavity M, but in other embodiments of the present application, the left rear longitudinal beam 1, the left sill beam 2 and the front floor 4 can also form a first cavity M. Similarly, the right sill beam 17, the right rear longitudinal beam 6 and the rear floor 3 can also form a first cavity M in the same way.

[0068] like Figure 7 As shown, the left sill beam 2 of this embodiment is also connected to a left sill reinforcement plate 11, and the left sill reinforcement plate 11 is used to improve the strength of the sill. The left sill reinforcement plate 11 is connected to the left sill beam 2 to form a fifth cavity R, and the fifth cavity R can improve the strength of the sill. The left sill reinforcement plate 11 can also be regarded as a part of the left sill beam 2. Similarly, the right sill beam 17 is also connected to a right sill reinforcement plate (not shown in the figure), and the right sill reinforcement plate and the right sill beam 17 can be connected in the same way to form a fifth cavity R. The right sill reinforcement plate can also be regarded as a part of the right sill beam 17. The fifth cavity R is located on the side of the first cavity M away from the box body 100 in the width direction of the vehicle body. In this way, the double cavity structure can be used to improve the ability of the box body 100 to resist collision in the Y direction and improve the safety inside the box body 100.

[0069] like Figures 1 to 7 As shown, the fourth cavity Q and the second cavity N are located in front of the box body 100, the third cavity P is located behind the box body 100, and the first cavity M and the fifth cavity R are located on the left or right side of the box body 100, so that the box body 100 can be ensured to have good anti-collision ability in both the X direction and the Y direction, thereby improving safety.

[0070] like Figure 8As shown, the vehicle body structure of this embodiment also includes a pair of C-pillars and a roof cross beam 27, the upper end of each C-pillar is connected to the roof cross beam 27, the lower end of one C-pillar is connected to the left sill beam 2, and the lower end of the other C-pillar is connected to the right sill beam 17. The rear cross beam 9, the C-pillar, the left sill beam 2, the right sill beam 17, and the roof cross beam 27 form a closed annular structure H. This closed annular structure H can effectively improve the torsional rigidity of the whole vehicle, is conducive to the transmission and decomposition of the inside, greatly improves the ability to resist deformation during side column collision and side collision, and protects the safety of the members. The projection of the C-pillar in the width direction of the vehicle body at least partially overlaps with the projection of the box body 100 in the width direction of the vehicle.

[0071] Specifically, in this embodiment, the left sill beam 2 is connected to the left sill reinforcement plate 11 through the sill reinforcement plate connecting plate 21. The wheel housing reinforcement plate 22 is used to improve the strength of the wheel housing. The wheel housing outer plate 23 serves as the outer styling surface of the wheel housing. The C-pillar includes a C-pillar inner plate 24 and a C-pillar reinforcement plate 25, and the C-pillar inner plate 24 is connected to the C-pillar reinforcement plate 25. On the outside, the sill reinforcement plate connecting plate 21 is connected to the wheel housing reinforcement plate 22, the wheel housing reinforcement plate 22 is connected to the C-pillar reinforcement plate 25, and the C-pillar reinforcement plate 25 is connected to the side panel upper beam reinforcement plate 26; on the inside, the left sill beam 2 and the right sill beam 17 are respectively connected to the left and right side wheel housing outer plates 23, and the wheel housing outer plate 23 is connected to the C-pillar inner plate 24. The inner and outer parts are welded to each other and then welded to the side panel outer plate to form a complete C-pillar. The left sill beam 2 at the lower end of one C-pillar is connected to the left rear longitudinal beam 1 along the Y direction, and the right sill beam 17 at the lower end of the other C-pillar is connected to the right rear longitudinal beam 6 along the Y direction. The side upper beam reinforcement plate 26 at the upper end of the C-pillar is connected to the C-pillar inner plate 24, and then connected to the roof cross beam 27. Welding and riveting, bolt connection, etc. are equivalent connection technical means. At the same time, the C-pillar can also adopt other structural forms. The body structure can also be provided with multiple connection points 19 for installing accessories such as reading lights and seat belts.

[0072] The ring-shaped structure H is very beneficial to the improvement of the torsional rigidity of the whole vehicle, and is beneficial to the transmission and decomposition of force. It greatly improves the ability to resist deformation during side-pillar collision and side collision, and protects the safety of vehicle members.

[0073] The projection of the C-pillar in the width direction of the vehicle body may be the orthographic projection of the C-pillar toward the leftmost structure or the rightmost structure of the vehicle body. Similarly, the projection of the box body 100 in the width direction of the vehicle body may be the orthographic projection of the box body 100 toward the leftmost structure or the rightmost structure of the vehicle body. When the C-pillar and the box body 100 are simultaneously projected toward the leftmost structure or the rightmost structure of the vehicle body, the two projections at least partially overlap, and the C-pillar can be utilized to protect the box body 100 in the event of a side collision.

[0074] The embodiment of the present application also provides a vehicle, the vehicle comprising the vehicle body structure as described above. The battery, vehicle charger and other electrical components can be accommodated in the box body 100, so the electrical components are protected by the box body 100, and the vehicle has higher safety.

[0075] like Figure 4 As shown, the vehicle further includes a battery pack 20. In the vehicle body height direction, the battery pack 20 is located below the box body 100, and the projection of the box body 100 in the vehicle body height direction at least partially overlaps with the projection of the battery pack 20 in the vehicle body height direction.

[0076] Specifically, the power battery in the battery pack 20 can provide a high-voltage power supply for the electric drive system, thereby generating driving force for the vehicle. The projection of the box body 100 in the vehicle height direction can be the orthographic projection of the box body 100 toward the ground or the top of the vehicle. Similarly, the projection of the battery pack 20 in the vehicle height direction can also be the orthographic projection of the battery pack 20 toward the ground or the top of the vehicle. When the battery pack 20 and the box body 100 are projected toward the ground or the top of the vehicle at the same time, the two projections at least partially overlap. In this way, the strength of the battery pack 20 itself can be used to improve the ability of the battery in the box body 100 to resist the top pressure from below.

[0077] That is to say, the battery and other electrical components in the box body 100 can be protected by the seat and the battery pack 20 in the Z direction, by the front cross beam 10 and the rear cross beam 9 in the X direction, and by the left rear longitudinal beam 1 and the right rear longitudinal beam 6 in the Y direction, so it is safer.

[0078] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0079] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A vehicle body structure, characterized in that: include: A box body (100), wherein the box body (100) is suitable for accommodating electrical components; A left rear longitudinal beam (1) and a right rear longitudinal beam (6) are arranged at intervals in the width direction of the vehicle body, and the box body (100) is located between the left rear longitudinal beam (1) and the right rear longitudinal beam (6).

2. The vehicle body structure according to claim 1, characterized in that: It also comprises a rear cross beam (9), which is arranged behind the box body (100) in the front-rear direction of the vehicle body, and the two ends of the rear cross beam (9) are respectively connected to the left rear longitudinal beam (1) and the right rear longitudinal beam (6).

3. The vehicle body structure according to claim 2, characterized in that: It also comprises a front cross beam (10), which is arranged in front of the box body (100) in the front-rear direction of the vehicle body, and the two ends of the front cross beam (10) are respectively connected to the left rear longitudinal beam (1) and the right rear longitudinal beam (6).

4. The vehicle body structure according to claim 1, characterized in that: In the vehicle body height direction, the box body (100) is located below the seat, and a projection of the box body (100) in the vehicle body height direction at least partially overlaps with a projection of the seat in the vehicle body height direction.

5. The vehicle body structure according to claim 3, characterized in that: The box body (100) has a front flange (104) and a rear flange (106); the box body (100) overlaps with the front cross beam (10) through the front flange (104); the box body (100) overlaps with the rear cross beam (9) through the rear flange (106); a mounting bracket (105) is arranged inside the box body (100); the mounting bracket (105) is provided with a reinforcing rib (107); the mounting bracket (105) overlaps with the front flange (104) and the rear flange (106) of the box body (100); the reinforcing rib (107) extends from the overlapping position of the mounting bracket (105) and the front flange (104) to the overlapping position of the mounting bracket (105) and the rear flange (106).

6. The vehicle body structure according to claim 5, characterized in that: There is a gap (18) between the box body (100) and at least a portion of the mounting bracket (105).

7. The vehicle body structure according to claim 3, characterized in that: It also comprises a seat mounting beam (8), the two ends of which are connected to the door sill beam, and the projection of the seat mounting beam (8) in the vehicle body height direction at least partially overlaps with the projection of the front cross beam (10) in the vehicle body height direction.

8. The vehicle body structure according to claim 1, characterized in that: It also includes a left threshold beam (2) and a right threshold beam (17), wherein the left threshold beam (2) is connected to the left rear longitudinal beam (1), and the right threshold beam (17) is connected to the right rear longitudinal beam (6); In the vehicle body width direction, the left sill beam (2) is arranged on a side of the left rear longitudinal beam (1) away from the box body (100), and the right sill beam (17) is arranged on a side of the right rear longitudinal beam (6) away from the box body (100).

9. The vehicle body structure according to claim 8, characterized in that: The projection of the left sill beam (2) in the width direction of the vehicle body, the projection of the right sill beam (17) in the width direction of the vehicle body and the projection of the box body (100) in the width direction of the vehicle body at least partially overlap; and / or The projection of the left rear longitudinal beam (1) in the width direction of the vehicle body, the projection of the right rear longitudinal beam (6) in the width direction of the vehicle body and the projection of the box body (100) in the width direction of the vehicle body at least partially overlap.

10. The vehicle body structure according to claim 8, characterized in that: The left sill beam (2), the left rear longitudinal beam (1) and the floor (5) form a first cavity (M), and / or the right sill beam (17), the right rear longitudinal beam (6) and the floor (5) form a first cavity (M).

11. The vehicle body structure according to claim 8, characterized in that: It also includes a C-pillar and a roof cross beam (27), wherein the upper end of the C-pillar is connected to the roof cross beam (27), and the lower end of the C-pillar is connected to the left sill beam (2) and the right sill beam (17); the rear cross beam (9) of the vehicle body structure, the C-pillar, the left sill beam (2), the right sill beam (17), and the roof cross beam (27) form a closed annular structure (H), and the projection of the C-pillar in the vehicle body width direction at least partially overlaps with the projection of the box body (100) in the vehicle body width direction.

12. A vehicle, characterized in that: The vehicle comprises: A vehicle body structure according to any one of claims 1 to 11.

13. The vehicle according to claim 12, characterized in that It also includes a battery pack (20), wherein in the vehicle body height direction, the battery pack (20) is located below the box body (100), and a projection of the box body (100) in the vehicle body height direction at least partially overlaps with a projection of the battery pack (20) in the vehicle body height direction.

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