Vehicle

Abstract

Vehicle. The vehicle (100) includes a left front longitudinal beam (111) and a right front longitudinal beam (112), the left front longitudinal beam (111) and the right front longitudinal beam (112) being spaced apart in the vehicle width direction; a left A-pillar (131) and a right A-pillar (132), the left front longitudinal beam (111) being connected to a lower section of the left A-pillar (131) and the right front longitudinal beam (112) being connected to a lower section of the right A-pillar (132); a windshield upper cross beam (14), two ends of the windshield upper cross beam (14) being respectively connected to an upper section of the left A-pillar (131) and an upper section of the right A-pillar (132); and a battery pack (16), a front end portion of the battery pack (16) being directly connected to each of the left front longitudinal beam (111) and the right front longitudinal beam (112). The left front longitudinal beam (111), the right front longitudinal beam (112), the left A-pillar (131), the right A-pillar (132), the windshield upper cross beam (14) and the battery pack (16) form a first A-pillar annular force transmission structure (1), thereby improving the structural strength of the front end portion of the vehicle and being able to improve the torsional strength of the vehicle.

Description

Technical Field

[0001] Cross - reference to Related Applications This disclosure claims the priority of Chinese Patent Application No. "202210911282.5" with the invention title "Vehicle" filed on July 29, 2022 by BYD Co., Ltd.

[0002] This disclosure relates to the technical field of electric vehicles, and more particularly, to vehicles.

Background Art

[0003] To protect the battery pack of an electric vehicle, the battery pack is usually arranged at the bottom of the vehicle. In related technologies, the battery pack is connected to the vehicle body assembly at two sides in the width direction by connection points arranged on two sides. However, since the battery pack is only connected to the vehicle body assembly in the width direction of the vehicle body assembly, the battery pack cannot effectively improve the torsional characteristics of the vehicle body.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This disclosure aims to solve at least to some extent one of the technical problems in the related art.

Means for Solving the Problems

[0005] This disclosure provides a vehicle.

[0006] The vehicle according to the present disclosure includes a left front longitudinal beam, a right front longitudinal beam, a left A-pillar, a right A-pillar, an upper windshield cross beam, and a battery pack. The left front longitudinal beam and the right front longitudinal beam are arranged at intervals in the width direction of the vehicle. The left A-pillar and the right A-pillar are arranged at intervals in the width direction of the vehicle. The left front longitudinal beam is connected to the lower section of the left A-pillar. The right front longitudinal beam is connected to the lower section of the right A-pillar. Two ends of the upper windshield cross beam are respectively connected to the upper section of the left A-pillar and the upper section of the right A-pillar. The front end of the battery pack is directly connected to each of the left front longitudinal beam and the right front longitudinal beam. The left front longitudinal beam, the right front longitudinal beam, the left A-pillar, the right A-pillar, the upper windshield cross beam, and the battery pack form a first A-pillar annular force transmission structure.

[0007] In the vehicle according to this embodiment of the present disclosure, the front end of the battery pack is directly connected to each of the left front longitudinal beam and the right front longitudinal beam so as to form a first A-pillar annular force transmission structure in front of the passenger compartment and in front of the upper part of the battery pack among the left front longitudinal beam, the battery pack, the right front longitudinal beam, the right A-pillar, the upper windshield cross beam, and the left A-pillar. Therefore, the battery pack is used as a part of the first A-pillar annular force transmission structure, thereby effectively enhancing the strength of the first A-pillar annular force transmission structure, improving its torsional resistance, and improving the torsional strength of the vehicle.

[0008] Some additional aspects and advantages of the present disclosure are provided in the following description. That part will become apparent from the following description or will be learned by the implementation of the present disclosure.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0010] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. Throughout the description, the same or similar elements, or elements having the same or similar functions, are denoted by the same or similar reference numerals. Hereinafter, the embodiments described with reference to the accompanying drawings are exemplary, for explaining the present disclosure, and should not be understood as limiting the present disclosure.

[0011] In the description of the present disclosure, the orientation or positional relationship indicated by terms such as "center", "longitudinal direction", "lateral direction", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and "circumferential direction" is based on the orientation or positional relationship shown in the accompanying drawings, and is used only for the purpose of facilitating the illustration and explanation and simplifying them, and does not indicate or imply that the described device or component must have a specific orientation or be configured and operated in a specific orientation. Therefore, such terms should not be understood as limiting the present disclosure.

[0012] In the present disclosure, unless otherwise clearly specified and defined, terms such as "mounting", "connecting", "attaching", and "fixing" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, an internal communication between two elements, or a relationship of interaction between two elements. A person skilled in the art can understand the specific meaning of the above terms in the present disclosure according to the specific situation.

[0013] The vehicle 100 in the embodiments of the present disclosure will be described below with reference to FIGS. 1 to 7.

[0014] Referring to FIGS. 1, 2, and 4, an embodiment of the present disclosure provides a vehicle 100. The vehicle includes a left front longitudinal beam 111, a right front longitudinal beam 112, a left A-pillar 131, a right A-pillar 132, an upper windshield cross beam 14, and a battery pack 16. The left front longitudinal beam 111 and the right front longitudinal beam 112 are arranged at intervals in the width direction of the vehicle 100. The left A-pillar 131 and the right A-pillar 132 are arranged at intervals in the width direction of the vehicle 100. The left front longitudinal beam 111 is connected to the lower section of the left A-pillar 131. The right front longitudinal beam 112 is connected to the lower section of the right A-pillar 132. The two ends of the upper windshield cross beam 14 are respectively connected to the upper section of the left A-pillar 131 and the upper section of the right A-pillar 132. The front end portion 161 of the battery pack is directly connected to each of the left front longitudinal beam 111 and the right front longitudinal beam 112. The left front longitudinal beam 111, the right front longitudinal beam 112, the left A-pillar 131, the right A-pillar 132, the upper windshield cross beam 14, and the battery pack 16 form a first A-pillar annular force transmission structure 1.

[0015] Referring to FIGS. 1, 2 and 4, a vehicle 100 according to an embodiment of the present disclosure includes a left front longitudinal beam 111, a right front longitudinal beam 112, a left A-pillar 131, a right A-pillar 132, an upper windshield cross beam 14, and a battery pack 16. The left A-pillar 131 and the right A-pillar 132 are arranged at intervals in the width direction of the vehicle 100. Two ends of the upper windshield cross beam 14 are respectively connected to the upper section of the left A-pillar 131 and the upper section of the right A-pillar 132, whereby the left A-pillar 131 and the right A-pillar 132 are connected to each other at their upper sections. The left front longitudinal beam 111 and the right front longitudinal beam 112 are arranged at intervals in the width direction of the vehicle 100. The front end portion 161 of the battery pack is directly connected to each of the left front longitudinal beam 111 and the right front longitudinal beam 112, whereby the left front longitudinal beam 111 and the right front longitudinal beam 112 are connected to each other in the width direction of the vehicle 100. The left front longitudinal beam 111 is connected to the lower section of the left A-pillar 131. The rear section of the right longitudinal beam is connected to the lower section of the right A-pillar 132, whereby the left A-pillar 131 and the right A-pillar 132 are connected at their lower sections. In this case, the left front longitudinal beam 111, the battery pack 16, the right front longitudinal beam 112, the right A-pillar 132, the upper windshield cross beam 14, and the left A-pillar 131 form a first A-pillar annular force transmission structure 1. Since the battery pack 16 has relatively high strength and rigidity, by using the battery pack 16 as a part of the first A-pillar annular force transmission structure 1, the strength of the first A-pillar annular force transmission structure 1 can be effectively increased, the torsional resistance can be improved, and the torsional strength of the vehicle 100 can be improved.

[0016] Thus, in the vehicle 100 according to the embodiment of the present disclosure, the front end portion 161 of the battery pack is directly connected to each of the left front longitudinal beam 111 and the right front longitudinal beam 112 so as to form the first A-pillar annular force transmission structure 1 on the left front longitudinal beam 111, the battery pack 16, the right front longitudinal beam 112, the right A-pillar 132, the upper windshield cross beam 14 and the left A-pillar 131. The torsional strength of the vehicle 100 can be improved by the first A-pillar annular force transmission structure 1.

[0017] Compared with some technologies, the battery pack 16 has connection points only on two sides of the vehicle 100 in the width direction and is not connected to the A-pillar 13 at the front end of the vehicle 100. In the present disclosure, the front end portion 161 of the battery pack is directly connected to each of the left front longitudinal beam 111 and the right front longitudinal beam 112, thereby forming a first A-pillar annular force transmission structure 1 composed of the left front longitudinal beam 111, the right front longitudinal beam 112, the right A-pillar 132, the upper windshield cross beam 14, and the left A-pillar 131. Thereby, the strength of the first A-pillar annular force transmission structure 1 can be effectively increased, the torsional resistance can be improved, and the torsional strength of the vehicle 100 can be improved.

[0018] In some embodiments of the present disclosure, referring to FIGS. 1 and 4, the vehicle 100 further includes a lower dashboard cross beam 21. The lower dashboard cross beam 21 is disposed between the left front longitudinal beam 111 and the right front longitudinal beam 112 and is connected to each of the left front longitudinal beam 111 and the right front longitudinal beam 112. The left front longitudinal beam 111, the right front longitudinal beam 112, the left A-pillar 131, the right A-pillar 132, the upper windshield cross beam 14, and the lower dashboard cross beam 21 form a second A-pillar annular force transmission structure 2. The second A-pillar annular force transmission structure 2 is combined with the first A-pillar annular force transmission structure 1 to improve the torsional strength of the vehicle 100.

[0019] In some embodiments of the present disclosure, referring to FIG. 2, the protruding portion of the battery pack 16 in the vertical direction of the vehicle 100 at least partially overlaps with the protruding portion of the lower dashboard cross beam 21 in the vertical direction of the vehicle 100 such that the battery pack 16 and the lower dashboard cross beam 21 form at least a partially overlapping double-layer structure in the height direction of the vehicle 100. Thereby, the strength of the first A-pillar annular force transmission structure 1 can be improved, the torsional resistance can be improved, and the torsional strength of the vehicle 100 can be improved.

[0020] In some embodiments, referring to FIG. 2, the protrusion of the upper and lower dash panel lower cross beam 21 of the vehicle 100 is completely received within the protrusion of the upper and lower battery pack 16 of the vehicle 100.

[0021] In some embodiments of the present disclosure, referring to FIG. 4, the front end portion 161 of the battery pack is directly connected to the dash panel lower cross beam 21. The front end portion 161 of the battery pack is directly connected to the dash panel lower cross beam 21 such that the first A-pillar annular force transmission structure 1 and the second A-pillar annular force transmission structure 2 are connected to each other, thereby increasing the strength of the first A-pillar annular force transmission structure 1 and improving the torsional resistance of the vehicle 100.

[0022] In some embodiments of the present disclosure, referring to FIG. 1, the left front longitudinal beam 111 includes a rear section 151 of the left front longitudinal beam. The right front longitudinal beam 112 includes a rear section 152 of the right front longitudinal beam. The rear section 151 of the left front longitudinal beam is connected to each of the left A-pillar 131 and the dash panel lower cross beam 21. The rear section 152 of the right front longitudinal beam is connected to each of the right A-pillar 132 and the dash panel lower cross beam 21.

[0023] In some embodiments of the present disclosure, referring to FIGS. 5 and 6, the vehicle 100 further includes a rear floor upper cross beam 33, a left shelf support plate 311, a right shelf support plate 312, and a shelf connection plate 32. The left shelf support plate 311 and the right shelf support plate 312 are spaced apart in the width direction of the vehicle 100. Two end portions of the rear floor upper cross beam 33 are respectively connected to the lower section of the left shelf support plate 311 and the lower section of the right shelf support plate 312. Two end portions of the shelf connection plate 32 are respectively connected to the upper section of the left shelf support plate 311 and the upper section of the right shelf support plate 312. The rear floor upper cross beam 33, the left shelf support plate 311, the right shelf support plate 312, and the shelf connection plate 32 form a first C-pillar annular structure 3.

[0024] The left shelf support plate 311 and the right shelf support plate 312 are connected by a shelf connection plate 32 at their upper sections and are connected by a rear floor upper cross beam 33 at their lower sections. In this way, the left shelf support plate 311, the shelf connection plate 32, the rear floor upper cross beam 33, and the right shelf support plate 312 form a first C-pillar annular structure 3, thereby improving the structural strength of the vehicle 100 in the C-pillar.

[0025] The rear floor upper cross beam 33 is disposed at the front end of the rear floor 5. The left and right ends of the rear floor 5 are respectively connected to the inner wheel housing panel. The first joint is connected to the two ends of the rear floor upper cross beam 33. The two ends of the rear floor upper cross beam 33 are respectively connected to the left shelf support plate 311 and the right shelf support plate 312 by the first joint. The left shelf support plate 311 includes a left shelf front support plate and a left shelf rear support plate. On the left side of the rear floor upper cross beam 33, the upper end of the first joint is connected to the lower ends of the left shelf front support plate and the left shelf rear support plate. The upper ends of the left shelf front support plate and the left shelf rear support plate are connected to one end of the shelf connection plate 32. On the right side of the rear floor upper cross beam 33, the upper end of the first joint is connected to the lower ends of the right shelf front support plate and the right shelf rear support plate. The upper ends of the right shelf front support plate and the right shelf rear support plate are connected to the other end of the shelf connection plate 32.

[0026] In some embodiments of the present disclosure, referring to FIGS. 6 and 7, the vehicle 100 further includes a left C-pillar 34 and a right C-pillar 35. The left shelf support plate 311 is connected to the left C-pillar 34. The right shelf support plate 312 is connected to the right C-pillar 35. The first C-pillar annular structure 3 is connected to the left C-pillar 34 and the right C-pillar 35 by the left shelf support plate 311 and the right shelf support plate 312, thereby further effectively increasing the torsional rigidity of the vehicle 100, increasing the strength of the first C-pillar annular structure 3, and improving the torsional resistance.

[0027] In some embodiments of the present disclosure, referring to FIG. 1, the vehicle 100 further includes a center floor lower cross beam 4, a left rear longitudinal beam 411, and a right rear longitudinal beam 412. The left rear longitudinal beam 411 and the right rear longitudinal beam 412 are arranged at intervals in the width direction of the vehicle 100. Two ends of the center floor lower cross beam 4 are respectively connected to the left rear longitudinal beam 411 and the right rear longitudinal beam 412. Two ends of the rear floor upper cross beam 33 are respectively connected to the left rear longitudinal beam 411 and the right rear longitudinal beam 412.

[0028] The left rear longitudinal beam 411 and the right rear longitudinal beam 412 are connected by the center floor lower cross beam 4 at the front end and by the rear floor upper cross beam 33 at the rear end, thereby forming a closed second C-pillar annular structure, thereby improving the structural strength of the vehicle 100 at that position, promoting the overall structural strength of the vehicle 100, and also effectively improving the torsional rigidity of the vehicle 100. While increasing the strength of the first C-pillar annular structure 3, the torsional resistance can be improved.

[0029] In some embodiments of the present disclosure, referring to FIG. 7, the rear end portion 162 of the battery pack is connected to the central floor lower cross beam 4 such that the front section of the battery pack 16, the front section of the left rear vertical beam 411, the rear floor upper cross beam 33, and the front section of the right rear vertical beam 412 form a closed third C-pillar annular structure, thereby improving the connection strength between the battery pack 16 and the vehicle 100, improving the structural strength of the vehicle 100 at that position, and promoting the overall structural strength of the vehicle 100. Additionally, the first C-pillar annular structure 3 can be further enhanced to improve the torsional strength of the vehicle 100.

[0030] In some embodiments of the present disclosure, referring to FIGS. 6 and 7, the vehicle 100 further includes a rear floor 5. The rear floor upper cross beam 33 is connected to the rear floor 5. The left rear vertical beam 411 includes a left rear vertical beam sealing plate 51. The left rear vertical beam sealing plate 51 is connected to each of the central floor lower cross beam 4 and the rear floor 5. The right rear vertical beam 412 includes a right rear vertical beam sealing plate 52. The right rear vertical beam sealing plate 52 is connected to each of the central floor lower cross beam 4 and the rear floor 5. The fourth C-pillar annular structure is formed by connecting the central floor lower cross beam 4 and the rear floor upper cross beam 33 by the left rear vertical beam sealing plate 51 and the right rear vertical beam sealing plate 52. The fourth C-pillar annular structure is connected to the first C-pillar annular structure 3, thereby enhancing the strength of the first C-pillar annular structure 3.

[0031] In some embodiments of the present disclosure, referring to FIGS. 6 and 7, the vehicle 100 further includes a seat mounting cross beam 53. The seat mounting cross beam 53 is connected to each of the left rear vertical beam sealing plate 51 and the right rear vertical beam sealing plate 52. The fifth C-pillar annular structure can be formed by connecting the seat mounting cross beam 53 and the central floor lower cross beam 4 by the left rear vertical beam sealing plate 51 and the right rear vertical beam sealing plate 52. The fifth C-pillar annular structure is connected to the first C-pillar annular structure 3, thereby enhancing the strength of the first C-pillar annular structure 3.

[0032] In some embodiments of the present disclosure, referring to FIG. 3, vehicle 100 further includes a left sill beam 54 and a right sill beam 55. The left sill beam 54 and the right sill beam 55 are arranged at intervals in the width direction of the vehicle 100. The left sill beam 54 is connected to the left A-pillar 131. The right sill beam 55 is connected to the right A-pillar 132. Two sides of the battery pack 16 are directly connected to the left sill beam 54 and the right sill beam 55 respectively.

[0033] The left sill beam 54 and the right sill beam 55 form mounting beams for the battery pack 16 on two sides of the vehicle 100. Two sides of the battery pack 16 are connected to the left sill beam 54 and the right sill beam 55. To better accommodate the battery pack 16 within the first A-pillar annular force transmission structure 1, the left sill beam 54 is connected to the left A-pillar 131, and the right sill beam 55 is connected to the right A-pillar 132, thereby better enhancing the strength of the first A-pillar annular force transmission structure 1, improving torsional resistance, and improving the torsional strength of the vehicle 100.

[0034] In some embodiments of the present disclosure, the left front longitudinal beam 111 is connected to the left sill beam 54, and the right front longitudinal beam 112 is connected to the right sill beam 55. The left front longitudinal beam 111 is connected to the left sill beam 54, and the right front longitudinal beam 112 is connected to the right sill beam 55, thereby enhancing the strength of the first A-pillar annular force transmission structure 1, improving torsional resistance, and improving the torsional strength of the vehicle 100.

[0035] In some embodiments of the present disclosure, referring to FIGS. 6 and 7, the vehicle 100 further includes a central floor lower cross beam 4. Two ends of the central floor lower cross beam 4 are connected to the left sill beam 54 and the right sill beam 55. The rear end portion 162 of the battery pack is connected to the central floor lower cross beam 4. The central floor lower cross beam 4 and the dashboard lower cross beam 21 are connected by the left sill beam 54, the right sill beam 55, the left front longitudinal beam 111, and the right front longitudinal beam 112 so as to form an overall annular force transmission structure. Battery mounting points are disposed on each of the left sill beam 54, the right sill beam 55, the left front longitudinal beam 111, the right front longitudinal beam 112, the central floor lower cross beam 4, and the dashboard lower cross beam 21. The battery pack 16 is connected to the overall annular force transmission structure by the battery mounting points, thereby enhancing the strength of the overall annular force transmission structure, thereby improving the torsional rigidity of the vehicle 100 and improving the handling of the vehicle 100.

[0036] Since the left rear longitudinal beam is further connected to the left sill beam and the right rear longitudinal beam is further connected to the right rear longitudinal beam, the left rear longitudinal beam and the right rear longitudinal beam can effectively enhance the strength of the overall annular force transmission structure and improve the force transmission capacity and torsional resistance.

[0037] The front end portion 161 of the battery pack is connected to the battery mounting point of the dashboard lower cross beam 21. The rear end portion 162 of the battery pack is connected to the battery mounting point of the central floor lower cross beam 4. The left side portion 163 of the battery pack is connected to the battery mounting point of the left sill beam 54. The right side portion 164 of the battery pack is connected to the battery mounting point of the right sill beam 55, thereby effectively reducing the weight of the vehicle, increasing the ground clearance of the vehicle or the space inside the vehicle, or reducing the vehicle height to improve the handling.

[0038] In some embodiments of the present disclosure, at least a part of the upper surface of the battery pack 16 is formed as the floor of the vehicle 100. The battery pack 16 is connected to the vehicle body by a battery connection plate, and the gap between the battery pack 16 and the vehicle body structure is sealed.

[0039] In the description of this specification, descriptions referring to terms such as "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described with reference to the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, a general description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, as long as they do not contradict each other, those skilled in the art can combine or combine different embodiments or examples described in this specification, and the features of different embodiments or examples.

[0040] Although embodiments of the present disclosure are shown and described above, as can be understood, the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, exchanges, and deformations to the above embodiments within the scope of the present disclosure.

Claims

1. A vehicle, comprising: a left front longitudinal beam and a right front longitudinal beam, the left front longitudinal beam and the right front longitudinal beam being spaced apart in the vehicle width direction; the left front longitudinal beam and the right front longitudinal beam; a left A-pillar and a right A-pillar, the left A-pillar and the right A-pillar being spaced apart in the vehicle width direction, the left front longitudinal beam being connected to a lower section of the left A-pillar, and the right front longitudinal beam being connected to a lower section of the right A-pillar; the left A-pillar and the right A-pillar; a windshield upper cross beam, two ends of the windshield upper cross beam being respectively connected to an upper section of the left A-pillar and an upper section of the right A-pillar; the windshield upper cross beam; a battery pack, a front end portion of the battery pack being directly connected to each of the left front longitudinal beam and the right front longitudinal beam; the battery pack and the left front longitudinal beam, the right front longitudinal beam, the left A-pillar, the right A-pillar, the windshield upper cross beam, and the battery pack form a first A-pillar annular force transmission structure. A vehicle.

2. Further comprising a dashboard lower cross beam, the dashboard lower cross beam being disposed between the left front longitudinal beam and the right front longitudinal beam and connected to each of the left front longitudinal beam and the right front longitudinal beam, the left front longitudinal beam, the right front longitudinal beam, the left A-pillar, the right A-pillar, the windshield upper cross beam, and the dashboard lower cross beam form a second A-pillar annular force transmission structure. The vehicle according to claim 1.

3. The vehicle according to claim 2, wherein a protruding portion of the battery pack in the vertical direction of the vehicle at least partially overlaps a protruding portion of the dashboard lower cross beam in the vertical direction of the vehicle.

4. The vehicle according to claim 3, wherein the front end portion of the battery pack is directly connected to the dashboard lower cross beam.

5. The left front longitudinal beam includes a rear section of the left front longitudinal beam, and the right front longitudinal beam includes a rear section of the right front longitudinal beam. The rear section of the left front longitudinal beam is connected to each of the left A-pillar and the lower dash cross beam, and the rear section of the right front longitudinal beam is connected to each of the right A-pillar and the lower dash cross beam. The vehicle according to claim 3 or 4.

6. A rear floor upper cross beam, A left shelf support plate and a right shelf support plate, wherein the left shelf support plate and the right shelf support plate are arranged at intervals in the width direction of the vehicle, and two ends of the rear floor upper cross beam are respectively connected to a lower section of the left shelf support plate and a lower section of the right shelf support plate, the left shelf support plate and the right shelf support plate; A shelf connection plate, wherein two ends of the shelf connection plate are respectively connected to an upper section of the left shelf support plate and an upper section of the right shelf support plate, the shelf connection plate further comprising The rear floor upper cross beam, the left shelf support plate, the right shelf support plate and the shelf connection plate form a first C-pillar annular structure. The vehicle according to any one of claims 1 to 5.

7. The vehicle according to claim 6, further comprising a left C-pillar and a right C-pillar, wherein the left shelf support plate is connected to the left C-pillar and the right shelf support plate is connected to the right C-pillar.

8. A center floor lower cross beam, A left rear longitudinal beam and a right rear longitudinal beam, wherein the left rear longitudinal beam and the right rear longitudinal beam are arranged at intervals in the width direction of the vehicle, two ends of the center floor lower cross beam are respectively connected to the left rear longitudinal beam and the right rear longitudinal beam, and two ends of the rear floor upper cross beam are respectively connected to the left rear longitudinal beam and the right rear longitudinal beam, the left rear longitudinal beam and the right rear longitudinal beam The vehicle according to claim 7, further comprising

9. The vehicle according to claim 8, wherein a rear end portion of the battery pack is connected to the center floor lower cross beam.

10. A rear floor, further comprising the rear floor, wherein the rear floor upper cross beam is connected to the rear floor. The left rear longitudinal beam includes a left rear longitudinal beam sealing plate, and the left rear longitudinal beam sealing plate is connected to each of the lower central floor cross beam and the rear floor. The right rear longitudinal beam includes a right rear longitudinal beam sealing plate, and the right rear longitudinal beam sealing plate is connected to each of the lower central floor cross beam and the rear floor. The vehicle according to claim 9.

11. The vehicle according to claim 10, further comprising a seat mounting cross beam, wherein the seat mounting cross beam is connected to each of the left rear longitudinal beam sealing plate and the right rear longitudinal beam sealing plate.

12. The vehicle according to any one of claims 4 to 11, further comprising a left sill beam and a right sill beam, wherein the left sill beam and the right sill beam are arranged at intervals in the width direction of the vehicle, the left sill beam is connected to the left A-pillar, the right sill beam is connected to the right A-pillar, and two side portions of the battery pack are directly connected to the left sill beam and the right sill beam respectively.

13. The vehicle according to claim 12, wherein the left front longitudinal beam is connected to the left sill beam and the right front longitudinal beam is connected to the right sill beam.

14. A lower central floor cross beam, wherein two ends of the lower central floor cross beam are connected to the left sill beam and the right sill beam, and the lower central floor cross beam; A rear end portion of the battery pack connected to the lower central floor cross beam The vehicle according to claim 12 or 13, further comprising.

15. The vehicle according to claim 14, wherein at least a part of the upper surface of the battery pack is formed as a vehicle floor.

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