Vehicle

Abstract

A vehicle (1), comprising sill beams (2100) and a plurality of battery pack mounting members (5000, 6000). The battery pack mounting members (5000, 6000) are each connected to at least one end portion of a sill beam (2100) in the front-rear direction. Two battery pack mounting members (5000, 6000) are spaced apart in a vehicle width direction, and two sill beams (2100) are also spaced apart in the vehicle width direction. In the vehicle width direction, the shortest distance between the two battery pack mounting members (5000, 6000) is less than the shortest distance between the two sill beams (2100). The battery pack mounting members (5000, 6000) are each provided with a battery pack mounting portion (7000), the battery pack mounting portion (7000) being suitable for connecting to a battery pack (4000). The battery pack mounting members (5000, 6000) are integrated components.

Description

vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on October 30, 2023, with application number 202311427648.2 and title “Vehicle,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicle technology, and in particular, to a vehicle. Background Art

[0004] In the fore-and-aft direction of a vehicle, the front longitudinal beam, the sill beam, and the rear longitudinal beam are typically connected in sequence from front to back, forming a force transmission path in the fore-and-aft direction of the vehicle. However, in related art, the portion where the rear end of the front longitudinal beam or the front end of the rear longitudinal beam connects to the sill beam is spliced ​​together using multiple sheet metal parts (usually a dozen to twenty sheet metal parts). This not only creates redundant overlapping structures between the sheet metal parts, but also causes a fault-like strength distribution in the connection area, affecting the connection stiffness between the front longitudinal beam or the rear longitudinal beam and the sill beam, thereby affecting the transmission of collision force in the fore-and-aft direction of the vehicle during a frontal or rear-end collision.

[0005] Summary of the Invention

[0006] The purpose of the present disclosure is to provide a vehicle to at least solve some of the above-mentioned technical problems existing in the related art.

[0007] In order to achieve the above object, the present disclosure provides a vehicle comprising

[0008] threshold beam;

[0009] Multiple battery pack mounts;

[0010] The battery pack mounting member is connected to at least one end portion of the rocker beam in the front-to-rear direction;

[0011] The two battery pack mounting members are spaced apart in the vehicle width direction, and the two door sill beams are spaced apart in the vehicle width direction;

[0012] In the vehicle width direction, the minimum distance between the two battery pack mounting members is less than the minimum distance between the two door sill beams;

[0013] The battery pack mounting member has a battery pack mounting portion, and the battery pack mounting portion is suitable for connecting with the battery pack;

[0014] Wherein, the battery pack mounting part is an integrated part.

[0015] Optionally, the plurality of battery pack mounting members include at least two battery pack mounting members respectively connected to the front end portions of the corresponding door sill beams and two battery pack mounting members respectively connected to the rear end portions of the corresponding door sill beams.

[0016] Optionally, in the vehicle length direction, a maximum distance between the battery pack mounting member connected to the front end of the sill beam and the battery pack mounting member connected to the rear end of the sill beam is greater than the length of the sill beam.

[0017] Optionally, the projection of the battery pack mounting member in the front-rear direction of the vehicle at least partially overlaps with the projection of the corresponding door sill beam in the front-rear direction of the vehicle.

[0018] Optionally, the projection of the battery pack mounting member in the left-right direction of the vehicle at least partially overlaps with the projection of the corresponding door sill beam in the left-right direction of the vehicle.

[0019] Optionally, the battery pack mounting member is an integrally formed structure.

[0020] Optionally, the projections of the battery pack mounting members located on the same side in the vehicle width direction in the vehicle front-rear direction at least partially overlap.

[0021] Optionally, the battery pack mounting surfaces of the four battery pack mounting members are located on the same horizontal plane.

[0022] Optionally, the sill beam is formed with a sill beam battery pack mounting surface, and the sill beam battery pack mounting surface is suitable for connecting with a battery pack.

[0023] Optionally, the door sill battery pack mounting surface and the battery pack mounting surface on the battery pack mounting portion are located on the same horizontal plane.

[0024] Optionally, the plurality of battery pack mounting members include two front compartment battery pack mounting members spaced apart in the vehicle width direction, the front compartment battery pack mounting members being connected to the front end portions of corresponding door sill beams;

[0025] The vehicle further includes a front lower cross beam, and both ends of the front lower cross beam are respectively connected to the two front compartment battery pack mounting parts.

[0026] Optionally, the front lower cross beam is provided with a lower cross beam battery pack mounting surface, and the lower cross beam battery pack mounting surface is suitable for connecting with a battery pack.

[0027] Optionally, the battery pack mounting surface of the lower crossbeam and the battery pack mounting surface on the battery pack mounting portion are located on the same horizontal plane.

[0028] Optionally, the vehicle further includes two A-pillars spaced apart in the vehicle width direction, and the front compartment battery pack mounting member is connected to the corresponding A-pillars.

[0029] Optionally, the vehicle further includes a front upper cross beam, both ends of which are connected to the two A-pillars.

[0030] Optionally, in the vehicle height direction, the front upper cross beam and the front lower cross beam are spaced apart from each other;

[0031] The two front compartment battery pack mounting parts, the front panel lower cross beam, the front panel upper cross beam and the two A-pillars are connected to form a first ring structure.

[0032] Optionally, the vehicle further includes a front panel, both ends of which are connected to the two A-pillars.

[0033] Optionally, the front panel is an integrally formed structure.

[0034] Optionally, the front panel and the front upper cross beam are an integrally formed structure.

[0035] Optionally, the vehicle further includes a central channel, the central channel extending in the front-rear direction of the vehicle, and the central channel is connected to the front lower cross beam.

[0036] Optionally, the plurality of battery pack mounting members include two rear compartment battery pack mounting members spaced apart in the vehicle width direction, the rear compartment battery pack mounting members being connected to rear ends of corresponding door sill beams;

[0037] The vehicle further includes a rear lower cross beam, both ends of which are respectively connected to corresponding rear compartment battery pack mounting parts.

[0038] Optionally, in the vehicle height direction, the rear lower cross beam is spaced apart from the battery pack.

[0039] Optionally, the vehicle further includes a rear floor crossbeam, on which a rear floor battery pack mounting surface is formed, and the rear floor battery pack mounting surface and the sill beam battery pack mounting surface on the sill beam are in the same horizontal plane.

[0040] Optionally, both ends of the rear floor cross beam are respectively connected to corresponding door sill beams, and the rear floor cross beam, the two door sill beams, and the rear lower cross beam are connected to form a second annular structure.

[0041] Optionally, the vehicle further includes a rear floor middle cross beam, and both ends of the rear floor middle cross beam are respectively connected to corresponding door sill beams.

[0042] Optionally, the rear floor middle beam is suitable for connecting with the battery pack.

[0043] Optionally, in the front-rear direction of the vehicle, the rear floor middle cross member is arranged between the front wall lower cross member and the rear wall lower cross member of the vehicle.

[0044] Optionally, the vehicle further includes a rear floor cross member, and in the front-rear direction of the vehicle, the rear floor middle cross member is connected to the rear floor cross member.

[0045] Optionally, the vehicle further includes two C-pillars spaced apart in the vehicle width direction, and the two C-pillars are respectively connected to corresponding rear compartment battery pack mounting parts.

[0046] Optionally, the projection of the C-pillar in the front-rear direction of the vehicle at least partially overlaps with the projection of the corresponding rear compartment battery pack mounting member in the front-rear direction of the vehicle.

[0047] Optionally, the vehicle further comprises a rear upper cross beam, both ends of which are respectively connected to corresponding C-pillars;

[0048] The rear upper cross beam, the two C-pillars, the rear lower cross beam and the two rear compartment battery pack mounting parts are connected to form a third annular structure.

[0049] Optionally, the vehicle further comprises a battery pack, wherein the battery pack is connected to a plurality of battery pack mounting members;

[0050] The front end of the battery pack is connected to two front compartment battery pack mounting parts arranged in the width direction of the vehicle, and the rear end of the battery pack is connected to two rear compartment battery pack mounting parts arranged in the width direction of the vehicle.

[0051] Optionally, the battery pack is directly connected to the battery pack mounting member.

[0052] Optionally, the vehicle further includes a battery pack, and the battery pack is directly connected to the front lower cross member.

[0053] Optionally, the vehicle further includes a battery pack, and the battery pack is directly connected to the rocker beam.

[0054] Optionally, the vehicle further includes a battery pack, and the battery pack is directly connected to the crossbeam in the rear floor.

[0055] Optionally, the rear floor middle cross beam is connected to the two door sill beams and the rear enclosure lower cross beam to form a fourth annular structure.

[0056] Optionally, at least a portion of the upper surface of the battery pack is formed as a vehicle floor.

[0057] Optionally, the vehicle further includes a seal, and the battery pack is sealedly connected to a battery pack mounting surface on the vehicle via the seal.

[0058] Optionally, the vehicle further comprises a rear floor cross member;

[0059] The two door sill beams, the two front compartment battery pack mounting parts, the front panel lower cross beam, and the rear floor cross beam are connected to form a fifth annular structure. The fifth annular structure has a hollow area, and the upper surface of the battery pack covering the hollow area is the vehicle floor.

[0060] Optionally, the vehicle further includes a front support beam and a rear upper cross beam, one end of the front support beam is connected to the rear upper cross beam, and the other end of the front support beam is connected to the rear longitudinal beam of the vehicle.

[0061] Optionally, the vehicle further includes a rear wheel cover, which is connected to the rear longitudinal beam, and the other end of the front support beam is also connected to the rear wheel cover.

[0062] Optionally, in the vehicle height direction, the front support beam and the rear longitudinal beam are spaced apart.

[0063] Optionally, the vehicle further comprises a rear support beam, one end of which is connected to the rear wheel housing, and the other end of which is connected to the rear longitudinal beam.

[0064] Optionally, in the vehicle height direction, one end of the rear support beam is spaced apart from the rear longitudinal beam.

[0065] Optionally, the vehicle further includes a rear wheelhouse crossbeam, both ends of which are respectively connected to the two rear wheelhouses spaced apart in the vehicle width direction.

[0066] Optionally, the vehicle further includes a first reinforcing beam, which is respectively connected to the front support beam and the rear wheel housing.

[0067] In this disclosure, the battery pack mounting assembly is a single piece with excellent inherent rigidity. Compared to existing solutions where the connector between the front or rear longitudinal beam and the rocker beam is composed of multiple sheet metal parts, this solution improves the integration of the battery pack mounting assembly, simplifies the assembly process, and contributes to vehicle lightweighting. Furthermore, the enhanced rigidity of the battery pack mounting assembly further enhances the strength of the battery pack mounting point. By integrating the battery pack mounting assembly with the battery pack, the overall vehicle body rigidity is also increased.

[0068] Furthermore, because the battery pack mount is a single piece and integrated with the battery pack, it enhances the vehicle's body-battery integration. In a collision, the battery pack mount, battery pack, and door sill create a path for efficient front-to-back force transmission, effectively transferring and distributing collision forces. This design improves the vehicle's force transmission and rigidity, enhancing its collision performance.

[0069] Since the minimum distance between the two battery pack mounting parts is smaller than the minimum distance between the two door sills, the battery pack mounting parts are located on the inner side of the door sill beam. In this way, the door sills can be used to crush and absorb energy first, and then the battery pack mounting parts can be used to assist in resisting.

[0070] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0072] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0073] FIG1 is a schematic side view of a vehicle provided in one embodiment of the present disclosure;

[0074] FIG2 is an exploded side view of a vehicle provided by one embodiment of the present disclosure;

[0075] FIG3 is a schematic diagram of a bottom-up perspective structure of a vehicle provided by an embodiment of the present disclosure;

[0076] FIG4 is a schematic cross-sectional view taken along line NN in FIG1 ;

[0077] FIG5 is a schematic diagram of the NN section in FIG1 ;

[0078] FIG6 is an enlarged schematic diagram of portion A in FIG5 ;

[0079] FIG7 is an enlarged schematic diagram of portion B in FIG5 ;

[0080] FIG8 is a schematic diagram of the rear perspective structure of a vehicle provided in one embodiment of the present disclosure;

[0081] FIG9 is a schematic longitudinal cross-sectional view of a portion of the structure of a vehicle provided by an embodiment of the present disclosure;

[0082] FIG10 is a bottom view of a vehicle provided by an embodiment of the present disclosure, wherein the annular structure is shown by a dotted line, wherein:

[0083] The battery pack is not shown;

[0084] FIG11 is a bottom view of a vehicle provided by an embodiment of the present disclosure, wherein a ring structure is shown by a dotted line, wherein:

[0085] A battery pack is shown;

[0086] FIG12 is a schematic diagram of a three-dimensional structure of a vehicle provided in an embodiment of the present disclosure, wherein a ring structure is shown by a dotted line;

[0087] FIG13 is a schematic perspective view of a partial structure of a vehicle provided by an embodiment of the present disclosure, wherein a first annular structure is shown by a dotted line;

[0088] FIG14 is a schematic perspective structural diagram of the vehicle of FIG12 along the EE perspective, wherein the first annular structure is shown by a dotted line;

[0089] FIG15 is a perspective structural diagram of a vehicle portion according to an embodiment of the present disclosure (FF perspective);

[0090] FIG16 is a perspective structural diagram of a vehicle portion according to an embodiment of the present disclosure (from a front side perspective);

[0091] FIG17 is a perspective structural diagram of a vehicle portion according to an embodiment of the present disclosure (from a rear perspective), wherein a third annular structure is shown by a dotted line;

[0092] FIG18 is a schematic perspective view of a rear structure of a vehicle according to an embodiment of the present disclosure;

[0093] FIG19 is a schematic side view of a portion of a vehicle according to an embodiment of the present disclosure;

[0094] FIG20 is a schematic diagram of the GG interface in FIG19;

[0095] FIG21 is a perspective structural diagram of a vehicle portion according to an embodiment of the present disclosure (from an HH perspective);

[0096] FIG22 is a side view schematically illustrating the connection between the front subframe and the battery pack of a vehicle according to an embodiment of the present disclosure;

[0097] FIG23 is a side view schematically illustrating the connection between the rear subframe and the battery pack of a vehicle according to an embodiment of the present disclosure;

[0098] FIG24 is a perspective structural diagram of the connection between a battery pack of a vehicle and a front compartment battery pack mounting member according to an embodiment of the present disclosure;

[0099] FIG25 is a perspective structural diagram of the connection between a battery pack of a vehicle and a rear compartment battery pack mounting member according to an embodiment of the present disclosure;

[0100] FIG26 is a front schematic diagram of a side impact force transmission structure of a vehicle according to an embodiment of the present disclosure;

[0101] FIG27 is a schematic perspective view of a battery pack for a vehicle according to an embodiment of the present disclosure;

[0102] FIG28 is a schematic diagram of the assembly of a battery pack and a seat cross member of a vehicle according to an embodiment of the present disclosure;

[0103] 29-31 are partial schematic diagrams of the position of a battery pack mounting member of a vehicle according to an embodiment of the present disclosure;

[0104] FIG32 is a partial exploded schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0105] FIG33 is a partial schematic diagram of the position of a battery pack mounting member of a vehicle according to an embodiment of the present disclosure;

[0106] FIG34 is a schematic diagram of the Z1 section of FIG33;

[0107] FIG35 is a schematic diagram of the X1 section of FIG33;

[0108] FIG36 is a schematic diagram of the Y1 section of FIG33;

[0109] 37-39 are partial schematic diagrams of the position of a battery pack mounting member of a vehicle according to an embodiment of the present disclosure;

[0110] 40-41 are partial exploded schematic views of a vehicle according to an embodiment of the present disclosure;

[0111] 42-45 are partial schematic diagrams of the position of a battery pack mounting member of a vehicle according to an embodiment of the present disclosure;

[0112] FIG46 is a partial exploded schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0113] 47-54 are partial schematic diagrams of the position of a battery pack mounting member of a vehicle according to an embodiment of the present disclosure;

[0114] FIG55 is an exploded side view of a vehicle provided by one embodiment of the present disclosure;

[0115] FIG56 is a side sectional view of the rear cross member of the floor of a vehicle provided by one embodiment of the present disclosure;

[0116] 57-58 are partial schematic diagrams of the position of the door sill of a vehicle provided in one embodiment of the present disclosure;

[0117] FIG59 is a schematic diagram showing the connection between a vehicle central channel and a seat crossbeam provided in one embodiment of the present disclosure;

[0118] 60-64 are partial schematic diagrams of the location of a battery pack of a vehicle provided in one embodiment of the present disclosure;

[0119] 65-76 are partial schematic diagrams of the position of a battery pack mounting member of a vehicle provided in accordance with an embodiment of the present disclosure;

[0120] FIG77 is a schematic diagram showing the relative positions of a rear floor cross member and a C-pillar front reinforcement plate of a vehicle provided by an embodiment of the present disclosure;

[0121] Figure 78 is a schematic diagram of the DD of Figure 77;

[0122] Figure 79 is a schematic diagram of the EE of Figure 77;

[0123] 80-83 are partial schematic diagrams of a vehicle provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0124] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0125] In the description of this disclosure, it should be understood that the terms "upper" and "lower" and the like, indicating orientations or positional relationships, are defined based on the orientation of the drawings as shown. These terms are intended solely to facilitate the description of this disclosure and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, structure, or operation. Therefore, they should not be construed as limitations on this disclosure. The terms "inside" and "outside" refer to the inside and outside of the corresponding structural outlines. Furthermore, the terms "first" and "second" and the like are used solely to distinguish one element from another and do not convey sequentiality or importance.

[0126] In the present disclosure, unless otherwise stated, the directions or positional relationships indicated by directional words such as "up, down, left, right, front, and back" are defined based on the drawing directions shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have specific directions, specific directional structures and operations. Therefore, they should not be understood as limitations on the present disclosure. For example, "up, down, left, right, front, and back" can be defined based on the up and down directions, left and right directions, and front and back directions of the vehicle in normal driving state. Specifically, in the accompanying drawings, the X direction is the front and back direction of the vehicle, where the side pointed by the arrow is "front" and the opposite is "back"; the Y direction is the left and right direction of the vehicle, where the side pointed by the arrow is "right" and the opposite is "left"; the Z direction is the up and down direction of the vehicle, where the side pointed by the arrow is "up" and the opposite is "down". The terms "inside" and "outside" refer to the inside and outside of the corresponding structural contours.

[0127] In addition, it should be noted that the terms used, such as "first" and "second", are used to distinguish one element from another and do not have order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

[0128] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections via an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0129] In addition, the term "crossbeam" in this disclosure may refer to a beam extending in the left-right direction of a vehicle, and a "longitudinal beam" may refer to a beam extending in the front-to-back direction of a vehicle. A "front longitudinal beam" refers to a longitudinal beam extending rearward from the front anti-collision beam of a vehicle. A "rear longitudinal beam" refers to a longitudinal beam extending forward from the rear anti-collision beam of a vehicle. There are typically two longitudinal beams, symmetrically arranged about the front-to-back centerline of the vehicle. For example, a "front longitudinal beam" typically includes a "left front longitudinal beam" and a "right front longitudinal beam" spaced apart in the left-to-right direction.

[0130] In addition, unless otherwise specifically explained, the terms such as "seat cross beam", "rear floor middle cross beam", "rear floor cross beam", "front panel", "rear panel", "side panel", "A-pillar", "C-pillar", "sill beam", "rear wheel cover" etc. involved in the various embodiments of the present disclosure have the meanings commonly known in the art.

[0131] As shown in FIG. 1 to FIG. 83 , the present disclosure provides a vehicle 1 , which may include a vehicle body and a battery pack 4000 arranged at the bottom of the vehicle body.

[0132] As shown in Figures 1 and 2, the vehicle body may include, from front to rear, a front cabin, a passenger compartment, and a rear cabin. The front cabin may include a front cabin frame 1000 and a front subframe (also referred to as a front frame assembly 1300) mounted below the front cabin frame 1000; the rear cabin may include a rear cabin frame and a rear subframe (also referred to as a rear subframe assembly 3300) mounted below the rear cabin frame 3000. The battery pack 4000 may be mounted below the passenger compartment and located between the front and rear subframes in the longitudinal direction of the vehicle.

[0133] As shown in FIG3 , the front cabin frame 1000 may include two front longitudinal beams 1100 spaced apart along the width direction of the vehicle, the passenger cabin may include two sill beams 2100 spaced apart along the width direction of the vehicle, and the rear cabin frame 3000 may include two rear longitudinal beams 3100 spaced apart along the width direction of the vehicle.

[0134] The rear end of the front longitudinal beam 1100 can be connected to the front end of the corresponding door sill beam 2100, and the front end of the rear longitudinal beam 3100 can be connected to the rear end of the corresponding door sill beam 2100, that is, the front longitudinal beam 1100 located on the left side of the vehicle is connected to the door sill beam 2100 located on the left side of the vehicle, and the front longitudinal beam 1100 located on the right side of the vehicle is connected to the door sill beam 2100 located on the right side of the vehicle; the rear longitudinal beam 3100 located on the left side of the vehicle is connected to the door sill beam 2100 located on the left side of the vehicle, and the rear longitudinal beam 3100 located on the right side of the vehicle is connected to the door sill beam 2100 located on the right side of the vehicle.

[0135] As shown in Figure 3, the rear end of the front longitudinal beam 1100 can be connected to the front end of the door sill beam 2100 through the front cabin battery pack mounting component 5000 below, and the front end of the rear longitudinal beam 3100 can be connected to the rear end of the door sill beam 2100 through the rear cabin battery pack mounting component 6000 below (hereinafter also referred to as the connecting integrated component 6000). Please see below for detailed description.

[0136] As shown in FIG3 , the front cabin frame 1000 may further include a front crash beam 1500 arranged along the width of the vehicle. The left and right ends of the front crash beam 1500 are connected to the front ends of the corresponding front longitudinal beams 1100 in the pair of front longitudinal beams 1100 via a front crash box 1400. The rear cabin frame 3000 may further include a rear crash beam 3500 arranged along the width of the vehicle. The left and right ends of the rear crash beam 3500 are connected to the front ends of the corresponding rear longitudinal beams 3100 in the pair of front longitudinal beams 1100 via a rear crash box 3400.

[0137] As shown in Figure 11, the battery pack 4000 may include a battery tray, which includes a tray base and a front crossbeam 4300, a rear crossbeam 4400, and two longitudinal beams 4500 (a left longitudinal beam and a right longitudinal beam) disposed on the tray base. The front crossbeam 4300, the rear crossbeam 4400, and the two longitudinal beams 4500 are connected to form a ring structure (i.e., the seventh ring structure L007).

[0138] As mentioned above, in the related art, the structure connecting the front longitudinal beam 1100 or the rear longitudinal beam 3100 and the front end of the door sill beam 2100 is connected by multiple sheet metal parts through splicing, which is difficult to assemble and has low connection stiffness, which is not conducive to the transmission of collision force.

[0139] In view of this, as shown in Figures 1 to 28, the vehicle provided by the present disclosure also includes a plurality of battery pack mounting components 5000, 6000, which are connected to at least one end of the rocker beam 2100 along the front-to-rear direction, and the two battery pack mounting components 5000, 6000 (such as the front compartment battery pack mounting component 5000 and the rear compartment battery pack mounting component 6000 below) are spaced apart in the vehicle width direction, and the two rocker beams 2100 are spaced apart in the vehicle width direction. In the vehicle width direction, the minimum distance between the two battery pack mounting components 5000, 6000 is less than the minimum distance between the two rocker beams 2100, and the battery pack mounting components 5000, 6000 are formed with a battery pack mounting portion 7000 (or can be called a first battery pack mounting portion), which is suitable for connecting to the battery pack 4000, wherein the battery pack mounting components 5000, 6000 are an integral part.

[0140] In the present disclosure, because the battery pack mounting members 5000 and 6000 are integrally formed and have superior inherent rigidity, compared to prior art solutions in which the connectors between the front longitudinal beam 1100 or the rear longitudinal beam 3100 and the sill beam 2100 are composed of multiple sheet metal parts, the present disclosure improves the integration of the battery pack mounting members 5000 and 6000, simplifies the assembly process, and contributes to vehicle lightweighting. Furthermore, the enhanced rigidity of the battery pack mounting members 5000 and 6000 can further enhance the strength of the battery pack 4000 mounting point. By integrating the battery pack mounting members 5000 and 6000 with the battery pack 4000, the overall vehicle body rigidity can also be increased.

[0141] Furthermore, because battery pack mounting components 5000 and 6000 are integrally connected to battery pack 4000, vehicle 1's body-battery integration is enhanced. In the event of a collision, the battery pack mounting components 5000 and 6000, battery pack 4000, and sill beam 2100 facilitate the formation of a path for efficient front-to-back force transmission, effectively transmitting and distributing the impact force. This design improves force transmission and stiffness, enhancing vehicle 1's collision performance.

[0142] Since the minimum distance between the two battery pack mounting parts 5000 and 6000 is smaller than the minimum distance between the two door sills (i.e., the door sill beam 2100), the battery pack mounting parts 5000 and 6000 are located on the inner side of the door sill beam 2100. In this way, the door sills can be used to crush and absorb energy first, and then the battery pack mounting parts 5000 and 6000 can be used to assist in resistance.

[0143] It can be understood that the battery pack mounting parts 5000 and 6000 are an integrated part, which means that the battery pack mounting part is a separate component, which can be a component obtained by one-piece molding, or a component in which multiple parts are processed separately and then connected into one. This disclosure does not limit this.

[0144] Optionally, in one embodiment of the present disclosure, the battery pack mounting parts 5000, 6000 can be an integrally molded structure to simplify the processing and assembly process. At the same time, the battery pack mounting parts themselves can have better rigidity to further improve the integration effect of the battery pack mounting parts 5000, 6000 with the vehicle body and the battery pack 4000.

[0145] For example, in the present disclosure, the battery pack mounting members 5000 and 6000 may be castings, specifically, castings manufactured using an aluminum alloy die-casting process. It is understood that the battery pack mounting members may be made of other materials besides aluminum alloy, such as steel.

[0146] In the present disclosure, there is no limitation on the number and relative positions of the battery pack mounting components 5000 and 6000. As shown in Figures 1 to 3, there can be two, three, four or other multiple battery pack mounting components. When arranged, the two battery pack mounting components 5000 can be respectively connected to the front end of the corresponding door sill beam 2100, or the two battery pack mounting components 6000 can be respectively connected to the rear end of the corresponding door sill beam 2100, or one of the two battery pack mounting components 5000 and 6000 can be arranged to be connected to the front end of the door sill beam 2100, and the other of the two battery pack mounting components 5000 and 6000 can be arranged to be connected to the rear end of the corresponding door sill beam 2100 (or the door sill beam 2100 on the other side of the vehicle).

[0147] As shown in FIG3 , in one embodiment of the present disclosure, the plurality of battery pack mounts 5000 and 6000 may include at least two battery pack mounts 5000 (i.e., two front compartment battery pack mounts 5000 ) respectively connected to the front ends of the corresponding rocker beam 2100, and two battery pack mounts 6000 (i.e., two rear compartment battery pack mounts 6000 ) respectively connected to the rear ends of the corresponding rocker beam 2100. In the present disclosure, the front compartment battery pack mount 5000 and the rear compartment battery pack mount 6000 located on the left side of the vehicle may be respectively connected to the two ends of the rocker beam 2100 located on the left side of the vehicle body, and the front compartment battery pack mount 5000 and the rear compartment battery pack mount 6000 located on the right side of the vehicle may be respectively connected to the two ends of the rocker beam 2100 located on the right side of the vehicle body.

[0148] In this way, providing at least four battery pack mounting members to mount the battery pack 4000 can improve the mounting strength and rigidity of the battery pack 4000 , thereby effectively improving the reliability of the installation of the battery pack 4000 .

[0149] Moreover, the front cabin battery pack mounting part 5000 and the rear cabin battery pack mounting part 6000 correspond to each other front to back in the front and rear directions of the vehicle. The front cabin battery pack mounting part 5000 and the rear cabin battery pack mounting part 6000 are respectively connected to the front and rear side ends of the sill beam 2100. The side force transmission frame from the front cabin battery pack mounting part 5000, the sill beam 2100 and finally to the rear cabin battery pack 4000 mounting part can better transmit and disperse the collision force.

[0150] After the battery pack 4000 is installed, a relatively large load-bearing surface is formed. The front and rear battery pack mounting members 5000 and 6000 form a frame with the sill beam 2100, increasing vehicle body rigidity, improving torsional stiffness, resisting vehicle deformation, and enhancing the ride quality.

[0151] Optionally, the two front compartment battery pack mounting parts 5000 can be located at the left and right corners of the front side of the battery pack 4000, and the two rear compartment battery pack mounting parts 6000 can be located at the left and right corners of the rear side of the battery pack 4000, so as to further improve the reliability of the installation of the battery pack 4000.

[0152] As shown in Figure 3, in the vehicle length direction, the maximum distance between the battery pack mounting part 5000 (i.e., the front compartment battery pack mounting part 5000) connected to the front end of the rocker beam 2100 and the battery pack mounting part 6000 (i.e., the rear compartment battery pack mounting part 6000) connected to the rear end of the rocker beam 2100 is greater than the length of the rocker beam 2100.

[0153] This design makes the battery pack mounting parts 5000 and 6000 separate components relative to the rocker beam 2100, and when transmitting force, the collision force can first be transmitted through the battery pack mounting parts with greater rigidity (in the case of a frontal collision, the collision force first passes through the front compartment battery pack mounting part 5000, and in the case of a rear collision, the collision force first passes through the rear compartment battery pack mounting part 6000), and then transmitted through the rocker beam 2100, which can improve the collision performance of the vehicle.

[0154] Optionally, in the present disclosure, the projections of the battery pack mounting members 5000 and 6000 in the vehicle's longitudinal direction (i.e., the vehicle's length direction) at least partially overlap with the projections of the corresponding rocker beams 2100 in the vehicle's longitudinal direction. That is, the projections of the battery pack mounting members 5000 and 6000 on the left side of the vehicle in the longitudinal direction can at least partially overlap with the projections of the rocker beams 2100 on the left side of the vehicle in the longitudinal direction, and the projections of the battery pack mounting members 5000 and 6000 on the right side of the vehicle in the longitudinal direction can at least partially overlap with the projections of the rocker beams 2100 on the right side of the vehicle in the longitudinal direction. This design facilitates the connection between the battery pack mounting members and the rocker beams 2100, thereby forming a reliable force transmission path and achieving better and more efficient force transmission.

[0155] Optionally, in the present disclosure, the projection of the battery pack mounting parts 5000 and 6000 in the left-right direction of the vehicle (i.e., the width direction of the vehicle) at least partially overlaps with the projection of the corresponding door sill beam 2100 in the left-right direction of the vehicle. That is, the projection of the battery pack mounting parts 5000 and 6000 on the left side of the vehicle in the left-right direction of the vehicle can at least partially overlap with the projection of the door sill beam 2100 on the left side of the vehicle in the left-right direction of the vehicle, and the projection of the battery pack mounting parts 5000 and 6000 on the right side of the vehicle in the left-right direction of the vehicle can at least partially overlap with the projection of the door sill beam 2100 on the right side of the vehicle in the left-right direction of the vehicle. This design facilitates the battery pack mounting parts 5000 and 6000 and the corresponding door sill beam 2100 to construct a force transmission path extending along the front-to-back direction of the vehicle, thereby improving the force transmission in the left-to-right direction of the vehicle. In addition, the door sill beam 2100 can be limited in the front-to-back and left-to-right directions, making the connection more stable and better improving the rigidity.

[0156] Optionally, in the present disclosure, the projections of the battery pack mounts 5000 and 6000 located on the same side of the vehicle widthwise in the vehicle front-to-back direction at least partially overlap. For example, the projections of the front compartment battery pack mount 5000 and the rear compartment battery pack mount 6000 located on the left side of the vehicle widthwise in the vehicle front-to-back direction at least partially overlap, and the projections of the front compartment battery pack mount 5000 and the rear compartment battery pack mount 6000 located on the right side of the vehicle widthwise in the vehicle front-to-back direction at least partially overlap. This design facilitates front-to-back force transmission between the front compartment battery pack mount 5000 and the rear compartment battery pack mount 6000, resulting in smoother force transmission, preventing the generation of deflection torque, facilitating the front-to-back transmission and dispersion of collision force, and thus improving the vehicle's collision performance.

[0157] In the present disclosure, referring to Figures 3, 11, 24 and 25, in one embodiment of the present disclosure, the battery pack mounting surfaces 7300 (or may be referred to as the first battery pack mounting surfaces) of the four battery pack mounting components 5000 and 6000 are located on the same horizontal plane, that is, the battery pack mounting surfaces 7300 of the two front compartment battery pack mounting components 5000 and the two rear compartment battery pack mounting components 6000 are located at the same height in the height direction of the vehicle 1.

[0158] Such a design can make the above-mentioned four battery pack mounting parts 5000, 6000 more tightly connected to the battery pack 4000; secondly, it is convenient to better seal the battery pack 4000 and the vehicle body; in addition, the collision force is transmitted more smoothly between the front compartment battery pack mounting part 5000, the battery pack 4000 and the rear compartment battery pack mounting part 6000, without deflection torque, and will not form an additional burden on the battery pack 4000, nor will the battery pack 4000 be damaged due to deflection torque; and, the gap between the battery pack 4000 and each component can be reduced, so that it has better integration with the vehicle body, that is, the battery pack 4000 is better integrated with the vehicle body.

[0159] It is understandable that in other embodiments of the present disclosure, any two, three, or four of the battery pack mounting surfaces 7300 of the four battery pack mounting components 5000 and 6000 may not be located on the same horizontal plane.

[0160] In the present disclosure, as shown in FIG10 , the sill beam 2100 is formed with a sill beam battery pack mounting surface 2104, which is suitable for connecting to the battery pack 4000. That is, in addition to providing battery pack mounting points on the aforementioned battery pack mounting components 5000 and 6000, the sill beam 2100 can also be provided with mounting points (i.e., sill beam battery pack mounting surface 2104) for mounting the battery pack 4000. This further improves the reliability of battery pack 4000 installation and enhances the integration of the battery pack 4000, the battery pack mounting components 5000 and 6000, and the sill beam 2100. This can increase the rigidity of the sill beam 2100, further enhancing the rigidity and force transmission of the vehicle body.

[0161] In addition, the stiffness of the threshold beam 2100 can form an integrated and large-area force transmission plane with the above-mentioned four battery pack mounting parts 5000 and 6000. The battery pack 4000 and the battery pack mounting parts 5000, 6000 and the threshold beam 2100 form an integrated structure. When transmitting force, the force transmission effect is better, and it can also effectively suppress the deflection torque in the vertical direction when subjected to force in the front and rear directions.

[0162] Optionally, the sill beam battery pack mounting surface 2104 can be coplanar with the battery pack mounting surface 7300 on the battery pack mounting portion 7000. This design allows for a tighter connection between the sill beam 2100 and the battery pack 4000. Furthermore, it facilitates better sealing between the battery pack 4000 and the vehicle body. Furthermore, it allows for smoother transmission of collision force between the front compartment battery pack mounting member 5000, the battery pack 4000, and the rear compartment battery pack mounting member 6000, eliminating deflection moments, placing no additional burden on the battery pack 4000, and preventing damage to the battery pack 4000 due to deflection moments. Furthermore, it reduces the gaps between the battery pack 4000 and various components, improving its integration with the vehicle body.

[0163] In the present disclosure, as shown in FIG3 , vehicle 1 may further include a dash lower cross member 1210 . The dash lower cross member 1210 (also referred to as a second cross member or a second cross member) is connected at both ends to two front compartment battery pack mounting members 5000 . The dash lower cross member 1210 is a cross member connected to the lower end of the dash panel 1200 . By integrating the dash lower cross member 1210 with the two front compartment battery pack mounting members 5000 , a force transmission path extending along the left-right direction of the vehicle body is formed through the two front compartment battery pack mounting members 5000 and the dash lower cross member 1210 . This increases the force transmission area and effectively transmits collision forces in the event of a side collision. Furthermore, this improves the reliability of the battery pack 4000 installation and the overall rigidity of the vehicle body, which facilitates the transmission and dispersion of collision forces in the fore-aft direction. By increasing the rigidity of the front side of this force transmission plane, the vehicle effectively resists forward impacts and thus improves its collision performance.

[0164] As shown in Figures 3, 10, and 24, the dash lower cross member 1210 is provided with a lower cross member battery pack mounting surface 1212 (also known as cross member mounting surface 1212), which is suitable for connecting to the battery pack 4000. Specifically, in the present disclosure, in addition to providing mounting points for the battery pack 4000 on the aforementioned battery pack mounting members 5000, 6000, and / or the rocker beam 2100, mounting points (i.e., dash lower cross member battery pack mounting points 211 shown in Figure 24) may also be provided on the lower cross member (i.e., dash lower cross member 1210) for mounting the battery pack 4000. This further improves the reliability of the battery pack 4000 mounting and enhances the integration of the battery pack 4000, the battery pack mounting members 5000, 6000, the rocker beam 2100, and the dash lower cross member 1210, thereby further enhancing the rigidity and force transmission of the vehicle body.

[0165] In addition, such a design can make the connection between the front lower cross member 1210 and the battery pack 4000 tighter, and the force on the front side of the vehicle can be transmitted to the battery pack 4000 through the front lower cross member 1210, thereby increasing the force transmission path.

[0166] Optionally, the lower beam battery pack mounting surface 1212 may be located at the same level as the battery pack mounting surface 7300 on the battery pack mounting portion 7000. Referring to Figures 3 to 28, the lower beam battery pack mounting surface 1212 and the battery pack mounting surface 7300 may both be located at the same level.

[0167] Such a design can make the above-mentioned lower cross beam (front lower cross beam 1210) more tightly connected to the battery pack 4000; secondly, it is convenient to better seal the battery pack 4000 and the vehicle body; in addition, the collision force is transmitted more smoothly between the front compartment battery pack mounting part 5000, the battery pack 4000 and the rear compartment battery pack mounting part 6000, without deflection torque, and will not form an additional burden on the battery pack 4000, nor will the battery pack 4000 be damaged by the deflection torque; and, the gap between the battery pack 4000 and each component can be reduced, so that it has better integration with the vehicle body, that is, the battery pack 4000 is better integrated with the vehicle body.

[0168] In the present disclosure, as shown in Figures 1 to 3, the vehicle 1 includes two A-pillars 2300 spaced apart in the vehicle width direction, and the front compartment battery pack mounting member 5000 is connected to the corresponding A-pillars 2300. That is, the front compartment battery pack mounting member 5000 located on the left side of the vehicle can be connected to the A-pillar 2300 located on the left side of the vehicle, and the front compartment battery pack mounting member 5000 located on the right side of the vehicle can be connected to the A-pillar 2300 located on the right side of the vehicle. By being connected to the A-pillar 2300, the force transmission path of the vehicle can be increased, and at the same time, the battery pack 4000, the A-pillar 2300, the door sill 2100, and the front compartment battery pack mounting member 5000 can be better integrated together, thereby improving the reliability of the battery pack 4000 installation and the overall rigidity of the vehicle.

[0169] Among them, when the front cabin battery pack mounting part 5000 is directly connected to the door sill beam 2100, the front longitudinal beam 1100, the A-pillar 2300 and the battery pack 4000 respectively, and the front cabin battery pack mounting part 5000 itself is an integrated part, it can better connect the force transmission of the above-mentioned parts, and the strength of the connection point is also strong. The battery pack 4000, the A-pillar 2300, the door sill beam 2100 and the front cabin battery pack mounting part 5000 have better integrity and better rigidity.

[0170] In addition, because the battery pack 4000 is a relatively large component, it is spread under the vehicle body, while the A-pillar 2300 and the door sill beam 2100 are on both sides of the front of the vehicle. By adopting this connection form, the entire battery pack 4000 can be used to strengthen the rigidity of this part of the structure, so that the front side of the vehicle can be connected as a whole, which can increase the rigidity of the front side of the vehicle, suppress the deformation of the vehicle during driving, improve the driving experience, and enhance the safety of the vehicle.

[0171] Moreover, when a collision occurs, since the battery pack 4000, A-pillar 2300, door sill beam 2100, and front compartment battery pack mounting part 5000 are connected together to form a vertical ring, the torsional rigidity of the vehicle body can be enhanced while the vertical ring can also suppress the vertical torsional moment between the front longitudinal beam 1100 and the battery pack 4000 due to the front collision (because the front longitudinal beam 1100 is spaced from the battery pack 4000 in the vertical direction, a vertical deflection moment is generated). Therefore, the vertical flipping moment of the front longitudinal beam 1100 during the collision can be effectively suppressed, thereby preventing damage to the passenger compartment and damage to the battery pack 4000 after the components flip over.

[0172] Among them, the projection of the front compartment battery pack mounting part 5000 in the vehicle width direction at least partially overlaps with the projection of the A-pillar 2300 in the vehicle width direction, thereby increasing the reliability of the connection between the front compartment battery pack mounting part 5000 and the A-pillar 2300 and the transmission of collision force.

[0173] Among them, the front compartment battery pack mounting part 5000 and the corresponding A-pillar 2300 can be directly or indirectly connected, and this disclosure does not limit this.

[0174] In the present disclosure, the front lower cross beam 1210 can be integrally formed, so that the battery pack mounting parts and the front lower cross beam 1210 are both integrally formed parts, which can reduce the connection seams and prevent the connections from breaking when subjected to force. Moreover, these integrally formed parts can better enhance the rigidity after being connected to the battery pack 4000.

[0175] In the present disclosure, as shown in Figures 1 and 13, vehicle 1 further includes a front upper cross member 1220 (also known as a first cross member 1220). The ends of the front upper cross member 1220 are connected to two A-pillars 2300. Specifically, the left end of the front upper cross member 1220 is connected to the A-pillar 2300 on the left side of the vehicle, and the right end of the front upper cross member 1220 is connected to the A-pillar 2300 on the right side of the vehicle. By providing the front upper cross member 1220 to connect the two A-pillars 2300 as one, the rigidity of the front side of the vehicle body can be improved, particularly the rigidity of the upper portion of the front side of the vehicle body. Furthermore, this also helps to suppress the vertical torsional moment between the front longitudinal member 1100 and the battery pack 4000 due to a frontal collision.

[0176] As shown in Figures 1 and 12 to 15, in the present disclosure, in the height direction of the vehicle, the front upper cross beam 1220 and the front lower cross beam 1210 are spaced apart, and the two front compartment battery pack mounting parts 5000, the front lower cross beam 1210, the front upper cross beam 1220 and the two A-pillars 2300 are connected to form a first annular structure L001. In this way, by forming the first annular structure L001, the rigidity of the front side of the vehicle can be effectively improved, especially the deformation of the front side of the vehicle in the height direction can be suppressed, and the vertical ring structure can also suppress the torsional moment of the front longitudinal beam 1100 and the battery pack 4000 in the vertical direction due to the front collision.

[0177] As shown in Figures 1, 13, and 14, vehicle 1 further includes a dash panel 1200. The dash panel 1200 can be connected to two A-pillars 2300 at both ends, i.e., the left and right ends of the dash panel 1200 can be connected to corresponding A-pillars 2300, respectively. The upper and lower ends of the dash panel 1200 can be connected to the upper crossbeam and lower crossbeam of the dash panel 1200, respectively. In other words, the dash panel 1200 can be disposed within the space defined by the first annular structure L001 (i.e., within the hollowed-out area of ​​the first annular structure). The dash panel 1200 cooperates with the first annular structure to form a surface, which can greatly increase the rigidity of the vehicle body.

[0178] In the present disclosure, the front panel 1200 can be an integrally formed structure to simplify processing and improve rigidity.

[0179] In the present disclosure, the front panel 1200 and the front upper cross beam 1220 can be an integrally formed structure, thereby facilitating processing and simplifying assembly. At the same time, the integrally formed structure can better improve rigidity.

[0180] Optionally, a cavity may be formed at the connection portion between the dash panel 1200 and the dash upper cross beam 1220 , and the left and right ends of the cavity may be respectively connected to the space between the side inner panel 2220 and the side outer panel 2210 of the vehicle.

[0181] In the present disclosure, as shown in Figures 1, 4, 9, 14, and 15, vehicle 1 may further include a central tunnel 2700. Central tunnel 2700 extends along the vehicle's front-to-rear direction and connects to dash lower cross member 1210. Connecting central tunnel 2700 to dash lower cross member 1210 increases the path for front-to-rear force transmission and improves vehicle body rigidity. Furthermore, central tunnel 2700 can suppress vertical deflection of dash lower cross member 1210, as its long length in the front-to-rear direction makes this possible.

[0182] In the present disclosure, as shown in Figures 12, 17, and 18, vehicle 1 further includes a rear lower cross member 3210 (i.e., rear cross member 3210), the ends of which are connected to corresponding rear compartment battery pack mounting members 6000. Thus, the front lower cross member 1210, the two front compartment battery pack mounting members 5000, the two door sills 2100, the two rear compartment battery pack mounting members 6000, and the rear lower cross member 3210 are connected to form an annular structure, i.e., a bottom annular structure (which may be referred to as a sixth annular structure L006, as shown in Figure 12).

[0183] The rear lower cross beam 3210 is a cross beam connected to the lower end of the rear panel 3200 on the vehicle. By connecting the two rear compartment battery pack mounting parts 6000 to form a whole through the rear lower cross beam 3210, on the one hand, the force transmission path can be increased. A force transmission path extending along the left and right directions of the vehicle body can be formed through the two rear compartment battery pack mounting parts 6000 and the rear lower cross beam 3210, which can play the role of transmitting collision force when the vehicle has a side collision; on the other hand, the reliability of the battery pack 4000 installation and the overall rigidity of the vehicle body can be improved.

[0184] Moreover, by forming the above-mentioned bottom annular structure, after installing the battery pack 4000, the rigidity of the vehicle can be effectively improved, especially the rigidity of the rear side of the vehicle body can be improved, and the deformation of the vehicle body in the height direction at the rear side of the vehicle body can be suppressed.

[0185] Optionally, the rear lower cross member 3210 can be integrally formed, which has good rigidity and is conducive to improving the rigidity of the vehicle body as a whole. When the parts on this ring are basically integrally formed, the effect of improving the vehicle rigidity will be more obvious.

[0186] In the present disclosure, the rear lower cross member 3210 can be spaced apart from the battery pack 4000 in the vehicle height direction. This allows the two rear compartment battery pack mounting members 6000, the battery pack 4000, the rear upper cross member 3220, and the rear lower cross member 3210 to form a vertical ring structure, which can improve vehicle rigidity and suppress vehicle deformation.

[0187] Among them, the last three of the four parts of the battery pack 4000, the rear compartment battery pack mounting part 6000, the rear enclosure upper cross beam 3220 and the rear enclosure lower cross beam 3210 in the above-mentioned ring structure can be one-piece molded parts, so that the strength and rigidity of this ring structure are very high, and the effect of improving the rigidity of the vehicle is obvious.

[0188] As shown in Figures 4, 5, 9, and 10, in the present disclosure, vehicle 1 may further include a rear floor cross member 2510 (also referred to as rear floor 2500 or second connecting plate 2500). A rear floor battery pack mounting surface 2516 is formed on rear floor cross member 2510. Rear floor battery pack mounting surface 2516 is coplanar with sill battery pack mounting surface 2104 on sill beam 2100. Connecting rear floor cross member 2510 to battery pack 4000 increases the number of mounting points for battery pack 4000, improving the reliability of battery pack 4000 installation and enhancing the overall rigidity of the vehicle.

[0189] Such a design can make the rear floor crossbeam 2510 and the battery pack 4000 more tightly connected; secondly, it is convenient to better seal the battery pack 4000 and the vehicle body; in addition, the collision force is transmitted more smoothly between the front compartment battery pack mounting part 5000, the battery pack 4000 and the rear compartment battery pack mounting part 6000, without deflection torque, and will not form an additional burden on the battery pack 4000, nor will the battery pack 4000 be damaged by the deflection torque; and, the gap between the battery pack 4000 and various components can be reduced, so that it is better integrated with the vehicle body, that is, the battery pack 4000 is better integrated with the vehicle body.

[0190] In the present disclosure, as shown in FIG20 , the ends of the rear floor cross member 2510 are respectively connected to the corresponding rocker beams 2100. The rear floor cross member 2510, the two rocker beams 2100, and the rear lower cross member 3210 are connected to form a second ring structure L002. Specifically, the left end of the rear floor cross member 2510 can be connected to the rocker beam 2100 on the left side of the vehicle, and the right end of the rear floor cross member 2510 can be connected to the rocker beam 2100 on the right side of the vehicle. Forming this second ring structure L002 effectively improves the rigidity of the vehicle's underbody, particularly suppressing deformation of the underbody, protecting the battery pack 4000, and improving the reliability and safety of its installation.

[0191] As shown in Figures 10 and 20, in the present disclosure, the vehicle 1 may further include a rear floor center cross beam 2513, and both ends of the rear floor center cross beam 2513 are respectively connected to the corresponding door sill beams 2100. By setting the center cross beam to connect the door sill beams 2100, the lateral force transmission path can be increased, and at the same time, the rigidity of the vehicle can be improved, especially the rigidity of the bottom of the vehicle can be improved.

[0192] In the present disclosure, as shown in Figures 2 and 11, the rear floor center cross beam 2513 can be connected to the battery pack 4000. In this way, the installation points of the battery pack 4000 are increased, and the battery pack 4000 is connected to the rear floor center cross beam 2513, which can further improve the rigidity of the vehicle.

[0193] Optionally, in the vehicle front-rear direction, the rear floor mid-cross member 2513 is disposed between the front lower cross member 1210 and the rear lower cross member 3210 of the vehicle. The rear floor mid-cross member 2513 can further strengthen the loop structure between the front lower cross member 1210 and the rear lower cross member 3210.

[0194] In the present disclosure, in the vehicle front-to-rear direction, the rear floor center cross member 2513 is connected to the rear floor cross member 2510. These two cross members reinforce each other. When the rear floor cross member 2510 and the battery pack 4000 are sealed, the battery pack 4000 is connected to the rear floor center cross member 2513. The closer the two cross members are, the tighter the connection.

[0195] As shown in Figures 1, 7, 17, 18, and 20, in the present disclosure, vehicle 1 further includes two C-pillars 2400 spaced apart in the vehicle width direction. Each of the two C-pillars 2400 is connected to a corresponding rear compartment battery pack mounting member 6000. That is, the rear compartment battery pack mounting member 6000 on the left side of the vehicle can be connected to the C-pillar 2400 on the left side of the vehicle, and the rear compartment battery pack mounting member 6000 on the right side of the vehicle can be connected to the C-pillar 2400 on the right side of the vehicle. By connecting to the C-pillars 2400, the vehicle's force transmission path can be increased, while the C-pillars 2400, the sill beam 2100, and the rear compartment battery pack mounting member 6000 can be better integrated, thereby improving the reliability of the battery pack 4000 installation and the overall rigidity of the vehicle, particularly the rigidity of the rear side of the vehicle.

[0196] Among them, when the rear cabin battery pack mounting part 6000 is directly connected to the door sill beam 2100, the rear longitudinal beam 3100, the C-pillar 2400 and the battery pack 4000 respectively, and the rear cabin battery pack mounting part 6000 itself is an integrated part, it can better connect the force transmission of the above-mentioned parts, and the strength of the connection point is also strong. The battery pack 4000, the C-pillar 2400, the door sill beam 2100 and the rear cabin battery pack mounting part 6000 have better integrity and better rigidity.

[0197] As shown in FIG7 , the projection of the C-pillar 2400 in the front-to-rear direction of the vehicle at least partially overlaps with the projection of the corresponding rear compartment battery pack mounting part 6000 in the front-to-rear direction of the vehicle, thereby facilitating the transmission and dispersion of the front-to-rear collision force, and the force transmission is also smoother.

[0198] Among them, the rear compartment battery pack mounting part 6000 and the corresponding C-pillar 2400 can be directly or indirectly connected, and this disclosure does not limit this.

[0199] As shown in Figures 17 and 18, vehicle 1 further includes a rear upper cross member 3220, the ends of which are connected to corresponding C-pillars 2400. The rear upper cross member 3220, the two C-pillars 2400, the rear lower cross member 3210, and the two rear compartment battery pack mounting members 6000 are connected to form a third annular structure L003. Specifically, the left end of the rear upper cross member 3220 is connected to the C-pillar 2400 on the left side of the vehicle, and the right end of the rear upper cross member 3220 is connected to the C-pillar 2400 on the right side of the vehicle. By providing the rear upper cross member 3220 to connect the two C-pillars 2400 into one, the rigidity of the rear side of the vehicle, particularly the rigidity of the upper rear portion of the vehicle, can be improved.

[0200] Furthermore, by forming the third annular structure L003, the rigidity of the rear side of the vehicle can be effectively improved, and in particular, the deformation of the rear side of the vehicle body in the height direction can be suppressed.

[0201] In this disclosure, referring to FIG12 , the vehicle body has two ring structures spaced apart in the front-to-rear direction of the vehicle, namely, a first ring structure L001 and a third ring structure L003. The first and third ring structures are connected on the upper side via the vehicle body's roof 2810, and on the lower side via the battery pack 4000 and the rocker beam 2100 (there is also a third ring structure at the bottom of the vehicle body), forming a very strong frame that greatly improves the vehicle's rigidity.

[0202] The roof is also equipped with roof longitudinal beams, which can be formed in one piece, providing exceptional structural strength. Consequently, the upper body components and battery pack 4000 are also strong. With the rear lower cross member 3210, front lower cross member 1210, dash panel 1200, and battery pack mounting elements 5000 and 6000 all formed in one piece, the overall vehicle strength is exceptionally high, and the resulting frame is also strong and meets rigidity requirements.

[0203] In addition, in the present disclosure, both ends of the rear panel 3200 are connected to the side panels and the C-pillar 2400, so that the rings between the rear panel lower cross beam 3210, the C-pillar 2400, and the rear panel upper cross beam 3220 are filled with the rear panel 3200, forming a surface structure with good rigidity.

[0204] In the present disclosure, a cavity may be provided between the rear lower cross member 3210 and the battery pack 4000 , and the cavity may be used to ventilate and dissipate heat for the on-board charger.

[0205] In the present disclosure, to ensure the installation strength and reliability of the battery pack 4000, as an optional embodiment, the battery pack 4000 can be directly connected to multiple battery pack mounting members 5000 and 6000 (i.e., the front compartment battery pack mounting member 5000 and the rear compartment battery pack mounting member 6000). This direct connection is beneficial for improving the connection strength of the connection points and enhancing the effect of the combination of the battery pack 4000 and the battery pack mounting members 5000 and 6000. In addition, it can also save parts and simplify the structure.

[0206] As shown in Figure 3, in an embodiment where the front end of the battery pack 4000 is respectively connected to two front compartment battery pack mounting parts 5000 arranged in the vehicle width direction, and the rear end of the battery pack 4000 is respectively connected to two rear compartment battery pack mounting parts 6000 arranged in the vehicle width direction, the front end of the battery pack 4000 can be directly connected to the two front compartment battery pack mounting parts 5000, and the rear end of the battery pack 4000 can be directly connected to the two rear compartment battery pack mounting parts 6000.

[0207] Similarly, the battery pack 4000 can be directly connected to the vehicle's front lower crossbeam 1210, door sill beam 2100, and rear floor middle crossbeam 2513, respectively, to improve the connection strength between the battery pack 4000 and the above three components, thereby improving the effect of the combination of the battery pack 4000 and the above components.

[0208] As shown in FIG21 , in the present disclosure, the rear floor middle cross beam 2513 is connected to the two door sill beams 2100 and the rear panel lower cross beam 3210 to form a fourth ring structure L004. By being connected into a ring structure, it is beneficial to improve the strength of the vehicle, especially to improve the structural strength of the bottom of the vehicle body.

[0209] As shown in Figures 4, 5 and 21, in the present disclosure, the rear floor center cross beam 2513 is located in front of the rear compartment battery pack mounting component 6000. In this way, in the front and rear directions of the vehicle, the rear floor center cross beam 2513 and the rear compartment battery pack mounting component 6000 can provide installation points for the battery pack 4000 in the front and rear directions of the vehicle, which is beneficial to improving the reliability of the installation of the battery pack 4000.

[0210] As mentioned above, referring to FIG. 10 , at the bottom of the vehicle, the battery pack 4000 , the two door sill beams 2100 , the rear floor center cross beam 2513 , and the two rear compartment battery pack mounting members 6000 may define a ring-shaped structure.

[0211] In the present disclosure, as shown in Figure 2, at least part of the upper surface 4001 of the battery pack 4000 (such as part of the upper surface of the upper cover of the battery pack 4000, which can also be called the battery pack upper surface 4001) is formed as the vehicle floor. Such a design is beneficial to saving the Z-direction space at the bottom of the vehicle and increasing the accommodation space of the battery pack 4000 at the bottom of the vehicle, thereby facilitating the increase of the capacity of the battery pack 4000 and the endurance of the vehicle. On the other hand, it is beneficial to simplify the vehicle body structure and facilitate the lightweighting of the vehicle.

[0212] In order to achieve sealed installation of the battery pack 4000 on the vehicle, especially when part of the upper surface of the battery pack 4000 is formed as the vehicle floor, as shown in Figure 10, the vehicle also includes a seal 4100, and the battery pack 4000 is sealed to the battery pack mounting surfaces 7300, 2104, 1212, and 2516 on the vehicle through the seal 4100. Here, the battery pack mounting surface on the vehicle may include any one or more of the battery pack mounting surface 7300 located on the battery pack mounting component 5000 or 6000, the sill beam battery mounting surface 2104 on the sill beam 2100, the lower cross beam battery pack mounting surface 1212 on the front lower cross beam 1210, and the rear floor battery pack mounting surface 2516 on the rear floor cross beam 2510, so that the seal 4100 can prevent substances such as air or water outside the vehicle from entering the vehicle (passenger compartment).

[0213] As shown in FIG10 , in the present disclosure, the vehicle 1 further includes a rear floor cross member 2510. Two door sill beams 2100, two front compartment battery pack mounting members 5000, a front lower cross member 1210, and the rear floor cross member 2510 are connected to form a fifth annular structure L005. The fifth annular structure L005 has a hollow area L0051. The portion of the upper surface of the battery pack 4000 covering the hollow area L0051 forms the vehicle floor. By forming the fifth annular structure L005, the rigidity of the vehicle bottom can be increased. By connecting the fifth annular structure to the annular structure of the frame structure of the battery pack 4000, the connection strength of the battery pack 4000 and the integration of the vehicle body and the battery pack 4000 can be greatly improved.

[0214] In the present disclosure, as shown in Figures 17 and 18, the vehicle may further include a front support beam 3640, one end of which is connected to the rear upper cross member 3220, and the other end of which is connected to the rear longitudinal beam 3100. The provision of the front support beam 3640 adds a force transmission path in the front-to-rear direction to the rear of the vehicle in addition to the rear longitudinal beam 3100, thereby facilitating the transmission and dispersion of collision forces in the front-to-rear direction.

[0215] As shown in Figures 17 and 18, the vehicle can also include a rear wheel cover 3700, which is connected to the rear longitudinal beam 3100, and the other end of the front support beam 3640 is also connected to the rear wheel cover 3700, that is, the front support beam 3640 can transmit force through the wheel cover (that is, the rear wheel cover 3700), thereby increasing the force transmission dispersion effect.

[0216] As shown in Figure 17, in the vehicle height direction, the front support beam 3640 and the rear longitudinal beam 3100 can be spaced apart. In this way, in the vertical direction of the vehicle, the vehicle has two spaced paths for force transmission, thereby facilitating the transmission of collision forces at different positions of the vehicle.

[0217] As shown in Figure 17, the vehicle may further include a rear support beam 3650, one end of which is connected to the rear wheel housing 3700, and the other end of which is connected to the rear longitudinal beam 3100. This design utilizes the rear support beam 3650 and transmits force to the upper side of the longitudinal beam through the force transmission path, which has a better effect.

[0218] As shown in Figure 17, in the vehicle height direction, one end of the rear support beam 3650 is spaced apart from the rear longitudinal beam 3100. In this way, in the vertical direction of the vehicle, the vehicle has two spaced force transmission paths, thereby facilitating the transmission of collision forces at different positions of the vehicle.

[0219] As shown in Figure 17, vehicle 1 further includes a rear wheelhouse crossbeam 3710, the ends of which are respectively connected to the two rear wheelhouses 3700 spaced apart in the vehicle width direction. This allows the two rear wheelhouses 3700 to be connected as one, thereby increasing the rigidity of the wheelhouses. Simultaneously, the rear wheelhouses 3700, the two rear longitudinal beams 3100, the rear wheelhouse crossbeam 3710, and the rear lower crossbeam 3210 can be connected to form a frame (i.e., an annular structure), thereby increasing the rigidity of the vehicle body, particularly the rigidity of the rear portion. Furthermore, the rear wheelhouses 3700, the two rear longitudinal beams 3100, the rear wheelhouse crossbeam 3710, the two front support beams 3640, and the rear upper crossbeam 3220 can also be connected to the frame, further increasing the rigidity of the vehicle body.

[0220] As shown in Figure 17, vehicle 1 may further include a first reinforcement beam 3610, which is connected to the front support beam 3640 and the wheel housing. Thus, the front support beam 3640, rear wheel housing 3700, rear wheel housing cross beam 3710, and first reinforcement beam 3610 can be connected to form a frame structure, which can strengthen the ring structure formed by the rear apron of the vehicle, increase the rigidity of the rear apron ring structure, and thus improve the rigidity of the entire vehicle body.

[0221] As shown in Figure 17, in the present disclosure, the vehicle 1 may also include a second reinforcing beam 3620 and a third reinforcing beam 3630. The upper end of the second reinforcing beam 3620 and the upper end of the third reinforcing beam 3630 can be respectively connected to the front support beam 3640, and the lower end of the second reinforcing beam 3620 and the lower end of the third reinforcing beam 3630 can be respectively connected to the rear cabin battery pack mounting part 6000 to increase the force transmission path and improve the rigidity of the vehicle.

[0222] Optionally, as shown in FIG. 17 , the second reinforcement beam 3620 , the third reinforcement beam 3630 and the front support beam 3640 may form a triangular structure to enhance rigidity.

[0223] As shown in Figure 3 , in this disclosure, the vehicle body structure also includes a first crossbeam 1230 , the left and right ends of which are connected to two front compartment battery pack mounting members 5000 . This allows the two front compartment battery pack mounting members 5000 to be further connected as one, improving the rigidity of the front side of the vehicle and increasing the force transmission path. Referring to Figure 3 , the first crossbeam 1230 , the two front compartment battery pack mounting members 5000 , and the front lower crossbeam 1210 can be connected to form a ring structure.

[0224] Optionally, the first crossbeam 1230 may be a profile structure.

[0225] As shown in Figures 24 and 25, in the present disclosure, a first mounting portion (also referred to as the lower end surface 5001 of the rear section of the front longitudinal beam, as shown in Figure 24) is provided on the front cabin battery pack mounting member 5000, and the first mounting portion is suitable for being connected to the front of the battery pack 4000 (for example, to the front mounting point 4002 of the battery pack, as shown in Figure 24), and a second mounting portion 6002 is provided on the rear cabin battery pack mounting member 6000, and the second mounting portion 6002 is suitable for being connected to the rear of the battery pack 4000 (for example, to the rear mounting point 4003 of the battery pack, as shown in Figure 24).

[0226] Optionally, the first mounting portion can be configured as a first mounting surface, and the second mounting portion can be configured as a second mounting surface. The first mounting surface is provided with a first mounting hole (also referred to as a front longitudinal beam battery pack mounting point 5002), which is suitable for engaging with a fastener (such as a bolt) to mount the battery pack front cross beam 4300 of the battery pack 4000. The second mounting surface is provided with a second mounting hole, which is suitable for engaging with a fastener (such as a bolt) to mount the battery pack rear cross beam 4400 of the battery pack 4000.

[0227] In the present disclosure, as shown in Figures 6 and 7, the threshold beam 2100 (also called the threshold) includes a main beam and a threshold reinforcement beam 2130 located inside the main beam. The threshold beam 2100 also includes a threshold inner panel and a threshold outer panel, which together form the main beam.

[0228] The vehicle's side inner panel 2220 is integrally formed with the rocker inner panel, and the portion of the lower portion of the side inner panel 2220 corresponding to the rocker reinforcement beam 2130 is configured as the rocker inner panel 2110. The vehicle's side outer panel 2210 is integrally formed with the rocker outer panel, and the portion of the lower portion of the side outer panel 2210 corresponding to the rocker reinforcement beam 2130 is configured as the rocker outer panel.

[0229] As shown in Figure 6, the front cabin battery pack mounting part 5000 is also provided with a third mounting part 5031 and a fourth mounting part 5032. The third mounting part 5031 abuts against the side of the side inner panel 2220 (sill inner panel) facing the driver's cabin, and the fourth mounting part 5032 is connected to the side inner panel 2220 and the sill reinforcement beam 2130 through a first fastener, wherein the sill reinforcement beam 2130 is located in the cavity enclosed by the side inner panel 2220 and the side outer panel 2210.

[0230] As shown in Figure 6, the vehicle also includes a side inner panel reinforcement block 2222 (i.e., the rocker inner reinforcement profile 2140) located in the cavity, and one end of the first fastener passes through the fourth mounting portion 5032, the side inner panel 2220 and the side inner panel reinforcement block 2222 in sequence, and is fixed to the rocker reinforcement beam 2130.

[0231] As shown in FIG. 6 , the third mounting portion 5031 extends in the width direction of the vehicle body frame, and the fourth mounting portion 5032 extends in the length direction of the vehicle body frame.

[0232] As shown in Figure 7, the C-pillar 2400 of the vehicle may include a C-pillar inner pillar 2420 (i.e., the side panel reinforcement 2420 hereinafter) and a C-pillar outer pillar 2430 (i.e., the intermediate connecting member 2430 hereinafter). The C-pillar inner pillar 2420 is connected to the sill reinforcement beam 2130, and both are located in the cavity enclosed by the side panel inner panel 2220 and the side panel outer panel 2210. The rear compartment battery pack mounting part 6000 is also provided with a fifth mounting portion 6121, which abuts against the rear end of the side panel inner panel 2220, and the fifth mounting portion 6121 is connected to the C-pillar inner pillar 2420 through a second fastener; the C-pillar outer pillar 2430 is connected to the side panel inner panel 2220 and the C-pillar inner pillar 2420 through a third fastener.

[0233] As shown in FIG. 7 , the fifth mounting portion 6121 may extend in the vehicle width direction.

[0234] As shown in FIG9 , the dash panel lower cross member 1210 is adapted to be connected to the battery pack front cross member 4300 .

[0235] In the length direction of the vehicle, the front panel lower cross beam 1210 is configured to have a first overlapping area with the battery pack front cross beam 4300 (i.e., the overlapping area C in Figure 9), and the rear panel lower cross beam 3210 is suitable for being connected to the battery pack rear cross beam 4400. In the length direction of the vehicle, the rear panel lower cross beam 3210 is configured to have a second overlapping area with the battery pack rear cross beam 4400 (i.e., the overlapping area D in Figure 9). Optionally, the length of the first overlapping area in the length direction of the vehicle body frame is 80-120 mm, and the length of the second overlapping area in the length direction of the vehicle body frame is 80-120 mm. By setting the above-mentioned first overlapping area and second overlapping area, side protection is formed for the battery pack 4000 as a whole.

[0236] In the present disclosure, as shown in the figure, the vehicle may further include a seat front cross member 2630, a seat rear cross member 2620, a floor mid-cross member 25, and a floor mid-cross member reinforcement beam 2514;

[0237] The middle floor cross beam 2513 is located behind the rear seat cross beam 2620, and the two ends of the middle floor cross beam 2513 are respectively connected to the two side inner panels 2220 of the vehicle body frame (connected to the two door sill beams 2100). The central channel 2700 is connected to the No. 1 cross beam 1230, the front panel lower cross beam 1210, the seat front cross beam 2630, the seat rear cross beam 2620, the middle floor cross beam 2513 and the middle floor cross beam reinforcement beam 2514 from front to back.

[0238] Thus, central channel 2700 covers the aforementioned transverse beams from front to back, reinforcing the first annular structure L001 at the front of the vehicle and the sixth annular structure L006 at the bottom from front to back, forming a "through" central channel 2700 structure. As shown in Figure 9, central channel 213 and the central channel cover plate form a closed cavity structure at the front.

[0239] When the vehicle's seat assembly (not shown, but mounted on the front and rear seat crossbars 2630 and 2620) is subjected to Z-direction loads (such as during rapid acceleration and deceleration at high speed), the central tunnel 2700's covering structure minimizes the risk of the seat being pulled up. Furthermore, this "through" central tunnel 2700 structure facilitates the transmission and distribution of frontal and side impact forces.

[0240] As shown in FIG. 9 , the interior of the first crossbeam 1230 is hollow and provided with reinforcing ribs, which can be flush with the front upper surface of the central channel 2700 .

[0241] As shown in FIG9 , the front end of the first crossbeam 1230 has an inclined surface, and the upper end of the inclined surface is located in front of the lower end of the inclined surface. This arrangement facilitates avoiding the routing of vehicles, for example, avoiding the routing of motors.

[0242] In the present disclosure, a solution is adopted in which the battery pack 4000 is not blocked by body parts in front and rear, and can extend forward toward the front subframe and backward toward the rear subframe, so as to increase the capacity of the battery pack 4000.

[0243] Optionally, as shown in Figure 22, the front compartment battery pack mounting component 5000 can be provided with an installation point for installing the front subframe, namely the sixth installation part 5003, and the rear compartment battery pack mounting component 6000 can be provided with an installation point for installing the rear subframe, namely the seventh installation part 6123.

[0244] For example, referring to FIG22 , a sixth mounting portion 5003 is provided on the front compartment battery pack mounting component 5000, and the sixth mounting portion 5003 is used to mount the front subframe (i.e., the front subframe assembly 1300). The rear compartment battery pack mounting component 6000 is also provided with a seventh mounting portion 6123, and the seventh mounting portion 6123 is used to mount the rear subframe (i.e., the rear subframe assembly 3300).

[0245] In this embodiment, battery pack mounting members 5000 and 6000 are located above and in front of the front end of battery pack 4000. The lower cross member 1210 of the vehicle body frame's dash panel is located above the front end of battery pack 4000, allowing the front end of battery pack 4000 to extend toward the front subframe of the vehicle body frame. The rear compartment battery pack mounting member 6000 is located above and behind the rear end of battery pack 4000, allowing the rear end of battery pack 4000 to extend toward the rear subframe of the vehicle body frame. This design increases the installation space for battery pack 4000 in the vehicle's front-to-back direction, thereby increasing the battery pack's capacity and improving the vehicle's range.

[0246] Optionally, as shown in Figure 22, the front cross-member of the battery pack 4000 is installed below the lower cross-member 1210 of the front enclosure, and the front end face of the battery pack 4000 is the front end of the battery pack 4000; the rear cross-member 1310 of the front subframe is installed below the front compartment battery pack mounting part 5000, and the rear mounting point 1301 of the front subframe is the rear end of the front subframe assembly 1300; a gap L1 can be set between the front end face 4301 of the front cross-member of the battery pack and the rear mounting point 1301 of the front subframe, and the width of L1 can be 30-50mm.

[0247] As shown in Figure 22, the lower end surface of the dash lower cross member 1210 represents the lowest profile of the dash panel lower cross member 1210, with all other profiles of this component being higher (in the Z direction). The lower end surface of the front compartment battery pack mounting member 5000 represents its lowest profile, with all other profiles of this component being higher (in the Z direction). This means that the battery pack front cross member 4300 can extend forward without being obstructed by the front mounting point of the battery pack 4000.

[0248] The battery pack rear cross beam 4400 is installed below the rear compartment battery pack mounting part 6000, and the rear end face of the battery pack rear cross beam 4400 is the rear end of the battery pack 4000 assembly; the rear subframe front cross beam 3310 is installed below the rear compartment battery pack mounting part 6000, and its rear subframe front mounting point 3301 (also referred to as the rear subframe mounting point 3301) is the front end of the rear subframe assembly 3300; a gap L2 can be set between the rear end face 4401 of the battery pack rear cross beam and the rear front mounting point 3301 of the rear subframe, and the width of L2 can be 30-50mm.

[0249] Specifically, the rear subframe front mounting point 3301 is located in the middle of the rear compartment battery pack mounting member 6000, and the battery pack rear mounting point is located in the front. This mounting point is located at the lowest profile of the rear compartment battery mounting member 6000, and all other profiles of the component are higher than this mounting point (in the Z direction). This means that the battery pack rear crossbeam 4400 can extend rearward without being obstructed by this mounting point.

[0250] In summary, the battery pack 4000 can extend forward and backward without obstruction, or it can be positioned upward to abut against the sealing plate of the battery pack 4000. It can also abut against the neutral surface of the side inner panel 2220 on the left and right sides. In other words, the battery pack 4000 can maximize the space under the vehicle body, further increasing the number of batteries that can be loaded into the battery pack 4000 through physical volume increase, ultimately achieving longer battery life.

[0251] The present disclosure adopts a "collapse-type" lateral force transmission frame and realizes lateral load distribution.

[0252] As shown in Figure 26, the vehicle 1 also includes a connecting part, and the front seat cross beam 2630 (i.e., the seat cross beam 2610) and the rear seat cross beam 2620 (i.e., the seat cross beam 2610) can be connected to the side inner panel 2220 through the connecting part, and the front seat cross beam 2630 and the rear seat cross beam 2620 are located at the ends in the width direction of the vehicle body frame and have gaps with the corresponding side inner panels 2220, wherein the connecting part is a collapsible part.

[0253] The aforementioned gap prevents the vehicle's side panels from directly compressing the front seat cross member 2630 (and its cover) and the rear seat cross member 2620 in the Y direction. Instead, a "collapse-type" lateral force transmission framework is formed, distributing and absorbing lateral loads. This "collapse-type" lateral force transmission framework meets Y-direction load requirements.

[0254] During installation, the battery pack 4000 can be assembled into one with the front seat beam 2630 and the rear seat beam 2620, and then the assembled whole can be installed on the vehicle body from the bottom of the vehicle along the Z direction. This will help ensure that the gap between the battery pack 4000 and the vehicle body is minimized, and maximize the use of the space under the vehicle body for the layout of the battery pack 4000, which will help improve the battery life.

[0255] As shown in Figures 26, 56 and 57, the side panel outer panel 2210 and the side panel inner panel 2220 form a closed cavity, the lower layer of which is provided with a door sill beam 2100 running from front to rear; a front connecting block 2151 close to its X-direction position is provided at the front cross beam 2630 of the seat, and a rear connecting block 2152 close to its X-direction position is provided at the rear cross beam 2620 of the seat; and the two connecting blocks are fixedly connected to the door sill beam 2100 through the front diagonal bracing beam of the door sill.

[0256] Above the battery pack 4000 sealing plate, there are two states of force transmission between the vehicle 11's side panels and the seat crossbeam 2610. In the upper portion, force is transmitted from the sill beam 2100 via the connecting block and the front sill bracing beam, and then to the seat crossbeam 2610 (upper surface) via the seat crossbeam connecting plate 2611. In the lower portion, a Y-axis gap L4 is defined between the sill beam 2100 (specifically, the side panel inner plate 2220) and the seat crossbeam 2610 (specifically, the seat crossbeam side end plate 2613). L4 can be 5-10 mm wide.

[0257] In summary, the side panel of the vehicle and the seat cross beam 2610 are directly connected by a connecting block at the upper part and connected by an L4 gap at the lower part. Therefore, when the side panel is subjected to a lateral load, the load will first be transmitted through the upper half of the path, and the energy will be absorbed through the lower half of the path after the upper part is destroyed.

[0258] The present disclosure adopts a structure in which the seat crossbeam 2610 and the side inner panel 2220 overlap in the Y direction, and the door sill is fixed at both the seat crossbeam 2610 and the battery pack 4000 frame to form a stable frame.

[0259] As shown in FIG. 26 , in the present disclosure, optionally, ends of a seat front cross member 2630 and a seat rear cross member 2620 may have overlapping areas with corresponding side panel inner panels 2220 (rocker inner panels) in the vehicle width direction.

[0260] As shown in Figure 26, the seat cross member 2610 is enclosed at both ends with sealing panels, creating a Y-axis overlap between its ends and the rocker inner panel 2110. Above this overlap, the side panel inner panel 2220 houses connecting blocks and diagonal bracing beams (i.e., rocker diagonal support beams 2150), along with other reinforcement components of the side panel assembly 2200. When the seat cross member is subjected to upward Z-axis loads, the side panels protect it from excessive pull-up and potential injury to the occupants.

[0261] As shown in FIGS. 26 to 28, there are multiple Z-direction fixed connections between the assembly formed by the battery pack 4000, the front seat crossmember 2630, and the rear seat crossmember 2620 and the vehicle body, including between the seat crossmember connecting plate 2611 and the seat crossmember 2610, and between the battery pack longitudinal beam 4500 and the inner panel of the side wall 2220 (the sill beam 2100). Through the above-mentioned multiple fixed connections, the integrity between the battery pack 4000 and the vehicle body is further enhanced, thus forming a stable integrated vehicle body-battery framework.

[0262] As shown in FIGS. 11, 26, and 27, the front battery pack crossmember 4300 can be connected to the front cabin battery pack mounting member 5000 and / or the lower crossmember of the front panel 1210, and the rear battery pack crossmember 4400 can be connected to the rear cabin battery pack mounting member 6000. The left and right battery pack longitudinal beams can be respectively connected to the corresponding sill reinforcement beams 2130.

[0263] As shown in FIGS. 26 to 28, in the present disclosure, the front seat crossmember 2630 and the rear seat crossmember 2620 are arranged above the upper cover plate of the battery pack and are arranged in parallel.

[0264] Taking the front seat crossmember 2630 as an example, the left and right ends of the front seat crossmember 2630 are arranged in a structure that overlaps with the battery pack longitudinal beam 4500 in the Y direction and are fixedly connected by more than two screws. This connection point (the seat crossmember end fixing point 2614 shown in FIG. 28) is located inside the battery pack longitudinal beam 4500 (close to the vehicle interior) and is parallel to the arrangement of the mounting points of the battery pack 4000 itself. Moreover, the Y-direction gap between the mounting points of the battery pack 4000 and the screws is set to 50 - 100 mm. Optionally, the front seat crossmember 2630 can be made by an aluminum extrusion process, such as a closed rectangular or square extrusion profile; it can also be made of high-strength steel, such as a channel shape or an M shape; but its part shape is designed to be straight and arranged along the Y direction to maximize the Y-direction force transmission effect. The two end faces of the above-mentioned front seat crossmember 2630 can be designed with flat-shaped cover plates to enclose it into a completely enclosed part.

[0265] Bottom connection: As shown in FIG. 28, flanges 2615 for connecting to the upper cover plate of the battery pack 4000 are provided on both sides of the front seat crossmember 2630, and can be connected and fixed by laser welding or gluing (a gluing surface can be provided on the seat crossmember). If the front seat crossmember 2630 is in the form of an aluminum extrusion, no flange is provided at the gluing and welding position; if it is made of high-strength steel, the flange is welded to the upper cover plate of the battery pack 4000 to ensure the connection strength.

[0266] Central Connection: The front crossbar 2630 of the seat is screwed to the battery pack 4000 (for example, screwed at the center fixing point 2612 of the seat crossbar as shown in Figures 26 and 28). Optionally, bolts may be installed on the front center crossbar 4600 and rear center crossbar 4700 of the battery pack 4000.

[0267] In summary, the battery pack 4000 and the front seat cross beam and the seat rear cross beam 2620 can be assembled into an assembly first, and then the assembly is assembled with the vehicle body in the Z direction.

[0268] Y direction: As shown in Figure 26, the gap between the side end plate of the battery pack longitudinal beam 4500 and the middle surface 2220d of the side inner panel is L4, the gap between the side end surface of the left longitudinal beam of the battery pack (i.e., the upper side end surface 4501 of the longitudinal beam) and the middle vertical surface 2220a of the side inner panel is L3, and the gap between the outer end surface 4503 of the longitudinal beam and the lower vertical surface 2220c of the side inner panel is L5.

[0269] Z-direction: The front seat cross member 2630 and the seat cross member connecting plate 2611 are fixed to the upper surface of the front seat cross member 2630 using screws or other means. The left mounting point on the battery pack longitudinal beam 4500 is fixed to the lower side of the door sill beam 2100 (specifically, the lower end surface 2220b of the side panel inner panel) using bolts 4504 or other means. The battery pack 4000 is sealed to the vehicle body using sealing foam (battery pack sealing foam 4200).

[0270] During the assembly process, the Y and Z tolerances can be absorbed by the seat crossbar connecting plate. The sealing foam can be first attached (assembled) to the upper cover of the battery pack 4000, and then the assembly 6Z can be assembled from the bottom to the top in the Z direction.

[0271] Through the above-mentioned Z-direction assembly process, it can be seen that the gap between the battery pack 4000 and the vehicle body is greatly reduced, thereby greatly improving the space utilization of the battery pack 4000 under the vehicle body, thereby improving the endurance of the entire vehicle.

[0272] In the present disclosure, a Z-direction flat battery pack sealing plate structure is adopted to form a sealing solution between the battery pack 4000 and the vehicle body.

[0273] Optionally, as shown in FIG. 26 , the vehicle may include a seal 4100 (also referred to as a battery pack sealing portion 4100 ), which is disposed at the bottom of the vehicle body frame for sealingly contacting the upper cover of the battery pack 4000 .

[0274] Optionally, the seal 4100 is constructed as an annular flat plate with uniform thickness.

[0275] As shown in Figures 3, 10, 24 and 25, the battery pack mounting surface 7300 on the front compartment battery pack mounting part 5000, the lower end surface of the front panel lower cross beam (i.e., the battery pack mounting surface 1212 on the front panel lower cross beam 1210), the middle surface of the side panel inner panel 2220 (i.e., the battery pack mounting surface 2104 on the door sill beam 2100) and the lower end surface of the rear floor 2500 (rear floor battery pack mounting surface 2516) are flush in the height direction of the vehicle body frame to jointly construct a mounting surface for installing the seal 4100.

[0276] As shown in FIG. 26 , the side inner panel 2220 has a stepped cross-section, with three transverse (flat) planes arranged from the inside to the outside, including a middle surface 2220 d of the side inner panel 2220 .

[0277] The battery pack mounting surface is a flat surface in the XY plane, parallel to the vehicle's XY plane. The lower end of the dash panel lower cross member 1210, the middle surface 2220d of the side panel inner panel 2220, and the lower end of the rear floor panel 2500 are aligned at the same Z-axis height as the battery pack mounting surface 7300 on the battery pack mounting assembly, forming a flat Z-axis mounting surface. The battery pack seal 4100 is positioned below this mounting surface and secured with structural adhesive.

[0278] The seal 4100 is a flat plate with a thickness of 1-5 mm (in the Z direction) and is located around the mounting surface. It is a hollow, U-shaped structure. A foam seal is used between the sealing plate and the battery pack 4000 to prevent external air, water, and other substances from entering the vehicle interior (passenger compartment). The foam seal can be made of silicone or other sealing materials, but is a flat surface (parallel to the XY plane).

[0279] In the present disclosure, referring to Figures 15 and 16, the cross member 1220 on the dash panel forms a closed cavity with the dash panel 1200, and passes through the upper and lower portions of the dash panel 1200, connecting to the two side panel inner panels 2220 on the left and right. The side panel inner panels 2220 and the side panel outer panels 2210 form a closed cavity at the front A-pillar 2300 of the passenger compartment. At this A-pillar 2300, a side panel inner panel sealing plate 2221 is also provided within the cavity formed by the side panel inner panel 2220 and the side panel outer panel 2210, as well as a door sill beam 2100 located at the bottom of the cavity. The front compartment battery pack mounting member 5000 is connected to the lower portion of the side panel inner panel 2220.

[0280] As shown in Figures 17 and 18, the rear panel upper crossbeam 3220 may include a roof rear crossbeam upper plate 2820 and a roof rear crossbeam lower plate 2830. The roof rear crossbeam upper plate 2820 and the roof rear crossbeam lower plate 2830 interlock to form a closed cavity, which then penetrates the side panels on both sides and connects to them. Specifically, the outer side connects to the C-pillar rear reinforcement plate 2412, and the inner side connects to the side panel inner panel 2220. The side panel inner panel 2220 and the side panel outer panel 2210 form a closed cavity at the rear end of the passenger compartment, at the C-pillar 2400. At this C-pillar 2400 location, a C-pillar rear reinforcement plate 2412 is also located within this cavity, forming a closed cavity with the side panel inner panel 2220. The rear compartment battery pack mounting assembly 6000 abuts the side panel inner panel 2220 and the rear panel 3200 forward. A rear lower cross beam 3210 is provided at the rear lower portion of the rear panel 3200 and runs through the rear panel 3200 . The rear lower cross beam 3210 is connected to the side panel inner panel 2220 through the rear compartment battery pack mounting member 6000 .

[0281] In summary, in the present disclosure, by providing multiple ring structures, for example, a first ring structure L001, a second ring structure L002, a third ring structure L003, a fourth ring structure L004, a fifth ring structure L005, a sixth ring structure L006, and a seventh ring structure L007, and connecting the corresponding ring structures, the battery pack 4000 and the vehicle body form an integral force transmission frame. When the battery pack 4000 is subjected to a frontal or lateral external force (such as a head-on collision, a side collision, or a side pole collision), the force can be transmitted between these directly connected rings. Through the related effects of the above-mentioned multiple ring structures, the torsional stiffness and modal of the entire vehicle can be greatly improved, and the collision performance of the entire vehicle can be improved; moreover, the first ring structure L001 at the front end and the third ring structure L003 at the rear end are arranged vertically with the bottom ring structure on the battery pack 4000 (such as the second ring structure L002 and the sixth ring structure L006), and the second ring structure L002, the sixth ring structure L006 and the seventh ring structure L007 of the battery pack 4000 are arranged in parallel, which further protects the battery pack 4000 from the maximum damage caused by the impact.

[0282] Through the above solution, a frame structure of an integrated vehicle body and battery assembly can be obtained, which has good collision force transmission effect of the entire vehicle and maximizes the space utilization of the battery pack 4000.

[0283] In the present disclosure, the vehicle may be a hybrid vehicle or an electric vehicle, and the present disclosure does not limit this. In addition, the present disclosure does not limit the vehicle model, and the vehicle may be a sedan or other vehicle models, such as a sports car.

[0284] Optionally, the vehicle disclosed herein may be a pure electric vehicle without a traditional B-pillar, and in particular, may be a pure electric sports car without a traditional B-pillar.

[0285] Vehicle lightweighting is a core technology and a key development direction for the automotive industry, becoming a national manufacturing development strategy. It aims to reduce vehicle weight without compromising safety, reliability, comfort, or cost, thereby improving vehicle power efficiency. With the implementation of national carbon neutrality and energy conservation and emission reduction policies, the future of automobiles is bound to be fully electrified. However, because batteries have a much lower energy density than fuel vehicles, achieving a range comparable to that of fuel vehicles requires batteries weighing more than 500kg, representing approximately 20-30% of the vehicle's total weight. Therefore, the demand for lightweighting new energy vehicles, especially pure electric vehicles with long driving ranges, is even more urgent.

[0286] As one of the five major components of a vehicle, the body-in-white (BIW) accounts for about a quarter of the vehicle's weight. Reducing the weight of the BIW can help achieve the goal of lightweighting the vehicle. Usually, BIW weight reduction can be achieved through material replacement, structural optimization, process optimization, and other approaches. For example, ultra-high-strength steel, hot-formed steel, aluminum alloy, plastic, and reinforced composite materials can be used to reduce the weight of the BIW. Among them, carbon fiber composites (CFRP) have the advantages of high specific strength (more than five times that of steel), high design freedom, corrosion resistance, and fatigue resistance. Replacing steel bodies with CFRP can ultimately achieve a weight reduction of approximately 40%-50%. However, current domestic research on carbon fiber composites for vehicle bodies mainly focuses on the application of individual components, such as hoods, roofs, and other covering parts. There is little in-depth research on the application of carbon fiber composites in vehicle body structural assemblies, and mass production is still a long way to go.

[0287] As we all know, there's currently no precedent in the industry for developing new energy sports cars. First, sports cars require ultra-high performance, which necessitates breakthroughs in body structure to achieve both higher performance and lighter weight. Existing body structures, predominantly made of traditional metal, struggle to meet the high-performance demands of sports cars. Second, while extreme driving performance is common in sports cars, integrating it with driving comfort, such as with air suspension, presents a significant challenge.

[0288] Of course, sports cars also need to meet certain styling and appearance requirements, such as being lower than traditional passenger cars and having a lower and more avant-garde front-end styling. However, for new energy vehicles, especially pure electric models, the three-electric system such as the powertrain (battery pack 4000), motor and electronic control is indispensable. At the same time, the size of these systems has a certain positive correlation with performance; for example, if you want to achieve ultra-high vehicle horsepower or power, you need to deploy more motors, and if you want to achieve ultra-long battery life, you need to deploy more battery pack 4000 modules. All of the above puts more demands on the body structure of pure electric sports cars.

[0289] Currently, the most straightforward approach for sports cars is to borrow components from traditional passenger cars. However, this approach will bring about numerous issues, including vehicle layout, collision safety strategy, and configuration distribution.

[0290] This two-door pure electric sports car lacks the traditional B-pillar structure. However, the B-pillar significantly impacts the vehicle's side impact and top-impact tests. To meet these stringent requirements, a new side reinforcement structure is required without the traditional B-pillar. Therefore, this disclosure addresses this requirement through the design of the vehicle body and its connection to the battery pack 4000.

[0291] In the above, the relative positions and corresponding connection relationships of the vehicle's front longitudinal beam 1100, battery pack mounting parts (front compartment battery pack mounting parts 5000 and rear compartment battery pack mounting parts 6000), door sill beam 2100, A-pillar 2300, C-pillar 2400, No. 1 crossbeam 1230, front wall lower crossbeam 1210, front wall upper crossbeam 1220, front wall panel 1200, side wall panel, rear wall panel 3200, rear wall lower crossbeam 3210, rear longitudinal beam 3100, middle floor crossbeam, rear floor crossbeam, central channel 2700, seat crossbeam, battery pack 4000 and other components are briefly introduced. The specific connection structure between the relevant components will be specifically introduced in conjunction with the drawings below.

[0292] Connecting castings can be added between the front cabin and the passenger compartment, as well as between the rear cabin and the passenger compartment. The connecting castings can be used to install battery packs, transmit force and other structures.

[0293] For the convenience of description, the connecting casting between the front cabin and the passenger cabin is defined as a battery pack mounting part, and the connecting casting between the rear cabin frame 3000 and the passenger cabin is defined as a connecting integrated part 6000. The battery mounting part and the connecting integrated part can be respectively connected to multiple body structural parts, which will be introduced separately below.

[0294] 1. Connecting integrated components

[0295] As shown in Figures 1 to 5, in the front-to-back direction of the vehicle, the connection integration part 6000 (i.e., the rear cabin battery pack mounting part) can be arranged between the rear cabin frame 3000 and the passenger compartment frame 2000, and the connection integration part 6000 is connected to the rear cabin frame 3000 and the passenger compartment frame 2000 respectively, wherein the connection integration part can be an integral part. It should be explained that the "integral part" here means that the connection integration part is a separate component, which can specifically be an integrally formed part, or it can also be a part formed by connecting multiple components. Compared with the traditional solution in which the front cabin frame 1000 and the passenger compartment frame 2000 are connected by splicing multiple sheet metal parts (electric welding, welding, screwing, etc.), such a design can improve the integration of the connection integration part and thus simplify the assembly process.

[0296] In the case of integrated connected components, the splicing of multiple components can result in a discontinuous strength distribution in the connection area (creating vulnerable points and low connection strength) or redundant overlap structures (impairing lightweighting). An integrated design can effectively avoid these issues, achieving lightweighting and improving the stiffness of the integrated component. Topological optimization can also be incorporated to further theoretically improve the lightweight design effect and the rationality of the force transmission path strength.

[0297] As shown in Figure 65, in an embodiment of the present disclosure, the connection assembly may be formed with a first mounting surface 6001, which may be configured as at least a portion of the battery pack mounting surface 4502 (or second battery pack mounting surface). Securing the battery pack to the connection assembly via the first mounting surface improves the rigidity of the battery pack mounting point. Furthermore, when the rear compartment frame 3000 of the vehicle is impacted, the impact force is transmitted to the battery pack via the connection assembly, dissipating the impact through the battery pack. This utilizes the large surface area of ​​the battery pack to increase vehicle body rigidity and reduce damage to the passenger compartment frame 2000.

[0298] As shown in Figures 18, 29, and 38, in an embodiment of the present disclosure, passenger compartment frame 2000 may include a sill beam 2100, at least a portion of the bottom surface of which may be configured as at least a portion of a battery pack mounting surface 4502. Forming the battery pack mounting surface on the sill beam further enhances the connection strength between the battery pack and the vehicle body. Furthermore, by integrally connecting the battery pack and sill beam, impact forces from the rear can be better dispersed, preventing damage caused by stress concentration.

[0299] As shown in FIG18 , in an embodiment of the present disclosure, the first mounting surface 6001 is flush with at least a portion of the bottom surface of the sill beam 2100 on a horizontal plane. It should be noted that the term "flush" does not require that the first mounting surface and at least a portion of the bottom surface of the sill beam be absolutely equal in height. Rather, it means that the first mounting surface and at least a portion of the bottom surface of the sill beam are close to the same height to facilitate installation of the battery pack. With this design, when the battery pack is installed on the vehicle body, since the first mounting surface and at least a portion of the bottom surface of the sill beam are flush, it is only necessary to snap the upper connecting surface of the battery pack into place with the first mounting surface and at least a portion of the bottom surface of the sill beam. This eliminates installation interference and helps reduce vehicle body height.

[0300] As shown in FIG18 , in an embodiment of the present disclosure, at least a portion of the first mounting surface 6001 may be located on the inner side of the sill beam 2100 in the vehicle width direction. The “inner side” here refers to the side of the sill beam that is close to the vehicle centerline in the vehicle width direction. With this design, the integrated component supports the battery pack in both the length direction and the width direction, which can expand the connection area between the battery pack and the vehicle body, thereby improving the installation stability and strength of the battery pack and the sill beam, improving integration, and improving the integrity of the battery pack and the vehicle body. At the same time, the battery pack can be extended in the width direction to increase its volume.

[0301] As shown in FIG76 , in an embodiment of the present disclosure, the passenger compartment frame 2000 may further include a first connecting plate 2520 connected to the sill beam. The first connecting plate is connected to the sill beams on both sides on both sides, thereby improving the stability of the vehicle body frame connection and enhancing the force transmission effect.

[0302] As shown in Figure 76, in an embodiment of the present disclosure, a battery pack may also be included. The battery pack and the first connecting plate may be spaced apart in the vehicle height direction to form a storage space. This storage space may be used to house an onboard charger, in which case the battery pack may serve as a base for the onboard charger. The onboard charger and the battery pack may be detachably connected. In this case, the door sill beams on both sides of the first connecting plate may protect the onboard charger in the storage space.

[0303] As shown in FIG76 , in an embodiment of the present disclosure, the passenger compartment frame 2000 may further include a second connecting plate 2500 (i.e., a rear floor). The second connecting plate 2500 is connected to at least one of the first connecting plate and the threshold beam 2100. The battery pack, the first connecting plate, the second connecting plate 2500, and the threshold beam may form a storage space. The left and right sides of the storage space are provided with the threshold beam and the vehicle's side assembly 2200, the lower side is provided with the battery pack, and the front side is provided with the second connecting plate 2500. The second connecting plate 2500 may also form a floor beam with other components (the floor beam is formed by the first connecting plate, the rear floor cover, and the front floor beam). These components form a relatively solid storage space to protect the on-board charger. At the same time, it is also equivalent to forming a cavity (storage space) for energy absorption on the rear side of the vehicle to reduce the risk to the occupants in the passenger compartment.

[0304] As shown in Figures 56 and 76-79, in an embodiment of the present disclosure, the front floor beam may include an upper cross beam and a lower cross beam. The upper cross beam, the lower cross beam and the battery pack may be connected in the height direction. The upper cross beam at least partially extends forward to between the rear floor cover and the rear floor, and the lower cross beam is connected to the battery pack to connect the battery pack to the vehicle body.

[0305] As shown in Figures 75 and 76, in an embodiment of the present disclosure, the floor beam, the door sill beam 2100 and the cross beam of the battery pack can form a closed-loop structure to improve the force transmission and torsional resistance of the vehicle body.

[0306] As shown in Figure 76, in an embodiment of the present disclosure, the battery pack, the first connecting plate, the second connecting plate 2500, the door sill 2100, and the connection assembly 6000 can form a storage space. With this design, the connection assembly can also protect the on-board charger in the storage space at the rear end.

[0307] The present disclosure does not limit the connection form of the first connecting plate and the second connecting plate 2500. For example, in an embodiment of the present disclosure, the first connecting plate and the second connecting plate 2500 can be integrally formed. Such a design can reduce the number of vehicle assembly steps and reduce the difficulty of the assembly process.

[0308] In order to facilitate the maintenance of the equipment in the accommodation space, as shown in Figure 76, in the example of the present disclosure, an inspection port 2521 can be provided on the first connecting plate. When the equipment in the accommodation space needs to be repaired, it can be repaired by simply opening the inspection port from the bottom.

[0309] As shown in FIG8 , in an embodiment of the present disclosure, two connecting assemblies are spaced apart in the vehicle width direction. The vehicle may also include a rear cross member 3210 (i.e., a rear lower cross member), the ends of which may be connected to two connecting assemblies 600, respectively. This design, on the one hand, can improve the force transmission capability of the connecting assembly, that is, in addition to transmitting force forward and backward, it can also transmit force to the sides. On the other hand, when the battery pack and the connecting assembly are connected, in addition to improving the rigidity of the passenger compartment, the rear cross member can also suppress the vertical tilting of the front longitudinal beam 1100. Specifically, when the rear cross member is connected to the connecting assembly, when the vehicle is impacted from the rear, the connecting assembly can transmit the impact to the rear cross member, which in turn disperses the impact force to the rear panel 3200 and the like through the rear cross member, thereby preventing stress concentration from damaging the passenger compartment frame 2000. In an embodiment of the present disclosure, the rear cross member can be integrally formed.

[0310] As shown in Figure 66, in an embodiment of the present disclosure, the connection assembly 6000 may further include a connecting portion 6100, one end of which may be connected to the rear cross member, and the other end of the connecting portion 6100 may form a rear longitudinal beam connecting portion 6110. By connecting the rear longitudinal beam 3100 and the rear cross member via the connection assembly, when the rear side of the vehicle is impacted, the forward impact force of the rear longitudinal beam can be transmitted through the connection assembly to the rear cross member, thereby dispersing the impact force to the rear panel 3200 and other parts. Specifically, as shown in the figure, the connection portion is provided with a receiving portion on the side away from the vehicle's rocker beam, and is connected to the rear cross member through this receiving portion.

[0311] In order to better transmit force between the rear longitudinal beam and the rear crossbeam in the front-to-back direction, as shown in Figures 65 and 66, in an embodiment of the present disclosure, the projection of the rear crossbeam 3210 in the vehicle front-to-back direction and the projection of the longitudinal beam connecting portion 6110 in the vehicle front-to-back direction can at least partially overlap. This overlapping portion can achieve a better force transmission effect when transmitting force from the back to the front. In addition, it can also effectively increase the force transmission area, reduce pressure, and prevent the rear longitudinal beam from being forced into the passenger compartment. It should be noted that in some other embodiments, the projection of the rear crossbeam in the vehicle front-to-back direction and the projection of the rear longitudinal beam connecting portion in the vehicle front-to-back direction can completely overlap, and the present disclosure does not impose any restrictions on the size of the overlapping portion between the two.

[0312] As shown in FIG25 , in an embodiment of the present disclosure, the upper surface of the connecting assembly 6000 may include a protruding plate 6002 extending forward from the front end for overlapping the upper surface of the rear crossbeam 3210. The lower surface of the connecting assembly 6000 is configured to align with the lower surface of the rear crossbeam 3210. The protruding plate 6002 is configured to connect to the upper surface of the rear crossbeam, and the front surface of the connecting assembly is configured to connect to the rear surface of the rear crossbeam. The cross-section of the rear crossbeam may be configured in a Japanese-shaped shape. The connecting assembly may also be formed with a first reinforcing rib j10 that is aligned with a first intermediate rib j12 of the rear crossbeam. This design improves the force transmission effect between the connecting assembly and the rear crossbeam.

[0313] Similarly, in the embodiment of the present disclosure, the projection of the rear longitudinal beam in the vehicle front-rear direction and the projection of the rear cross beam in the vehicle front-rear direction may at least partially overlap, so as to better transmit the force of the rear longitudinal beam to the rear cross beam.

[0314] As shown in Figures 65 and 66, in the embodiment of the present disclosure, the projection of the rear cross member 3210 in the vehicle's left-right direction can at least partially overlap with the projection of the rear longitudinal beam connecting portion 6110 in the vehicle's left-right direction. This design can achieve the effect of transmitting force in the vehicle width direction. For example, when the rear longitudinal beam 3100 is impacted in the vehicle width direction, the force can be transferred to the rear cross member.

[0315] As shown in Figure 76, to ensure ventilation of the aforementioned storage space and prevent heat damage, in the embodiment of the present disclosure, the rear cross member and the battery pack 4000 are spaced apart in the vehicle height direction, so that a vent 7200 communicating with the storage space 7100 is formed between the battery pack and the rear cross member 3210. In addition to providing ventilation, the aforementioned vent can also provide a buffering effect for components arranged in the storage space. For example, if the front of the vehicle is hit, the components in the storage space can be displaced rearward through the vent, thereby being buffered and reducing collision damage caused by the impact.

[0316] In order to form the above-mentioned accommodation space 7100 and the vent 7200, as shown in FIG76, in the embodiment of the present disclosure, the rear cross member 3210 can be located on the side of the first connecting plate 2520 away from the battery pack in the vehicle height direction.

[0317] In order to form the above-mentioned accommodation space and ventilation opening, as shown in FIG. 76 , in an embodiment of the present disclosure, the first connecting plate may be located on the upper side of the first mounting surface in the vehicle height direction.

[0318] To connect the rear subframe assembly 3300 to the connection assembly 6000, as shown in Figures 23 and 65, in an embodiment of the present disclosure, the connection assembly 6000 may be formed with a rear subframe mounting point 3301 (i.e., a front rear subframe mounting point). With this design, when the rear subframe assembly is mounted to the connection assembly, when the rear side of the vehicle is impacted, the impact force from the rear longitudinal beam can be significantly dispersed to the entire body floor structure through the rear subframe assembly. The rear subframe assembly participates in the force transmission under the vehicle, improving collision safety, torsional stiffness, and other performance.

[0319] As shown in Figure 65 , in an embodiment of the present disclosure, the plane where the rear subframe mounting point 3301 is located is located above the first mounting surface 6001 in the vehicle height direction. This design prevents the rear subframe assembly from directly impacting and damaging the battery pack due to its height offset from the battery pack 4000 when subjected to a rear impact force. Specifically, when the connection assembly is constructed in the stepped shape shown, the force applied to the rear subframe assembly can be directly transferred to the connection assembly via the front stepped surface, and further dispersed through other components that interact with the connection assembly. Specifically, in the embodiments shown in Figures 65 and 67, the connection integration can be constructed in a stepped shape and include a first step 1-3 and a second step 1-2 adjacent in the height direction, the rear end of the first step 1-3 is closer to the passenger compartment than the rear end of the second step 1-2, the second step 1-2 is provided with the above-mentioned rear subframe mounting point, and the first step 1-3 is located in front of the rear subframe mounting point to limit the forward displacement of the rear subframe assembly 3300.

[0320] In some embodiments, the rear subframe mounting point can be moved closer to the connection portion for connecting the rear cross member in the height direction. This design can better transmit force to the rear cross member and reduce its vertical moment.

[0321] As shown in Figures 23 and 65 , in an embodiment of the present disclosure, the rear subframe mounting point 3301 can be located behind the connection between the vehicle's battery pack 4000 and the connection assembly 6000 in the vehicle's fore-aft direction. This design, on the one hand, allows the rear subframe to serve as the rear limiting surface for the battery pack, allowing the battery pack to extend all the way to the subframe, increasing its capacity. On the other hand, when the rear subframe assembly transmits force forward, it can also use the battery pack as a force transmission path, ensuring that it does not directly impact the battery pack, thereby adding a force transmission path and achieving dispersed force transmission.

[0322] As shown in Figure 65, in an embodiment of the present disclosure, in the vehicle height direction, the first mounting surface 6001 can be located below the rear subframe mounting point 3301, and the rear longitudinal beam connecting portion 6110 can be located above the rear subframe mounting point 3301. This design can form multiple force transmission paths in the vehicle height direction, reducing damage to the passenger compartment.

[0323] As shown in Figure 65, in an embodiment of the present disclosure, the connection assembly 6000 may further include a rear longitudinal beam connection portion 6110. In the vehicle's fore-aft direction, the rear longitudinal beam connection portion 6110 may be located rearward of the rear subframe mounting point 3301. When a vehicle is impacted from the rear, the rear longitudinal beam is the first to be subjected to the force. Positioning the rear longitudinal beam connection portion at the rear creates a multi-layered force transmission structure while also gradually increasing the cross-sectional area of ​​the connection assembly from rear to front.

[0324] As shown in Figure 65, in an embodiment of the present disclosure, the rear longitudinal beam connection portion 6110 can be located above the plane of the rear subframe mounting point 3301 in the vehicle height direction. This design creates a double-layer force transmission path in the fore-aft direction when the vehicle is subjected to a rear-side impact, avoiding stress concentration and minimizing damage to the passenger compartment.

[0325] Specifically, as shown in Figure 67, in an embodiment of the present disclosure, the connection integration 6000 may include a third step 1-1 adjacent to the second step 1-2 in the height direction, and the rear end of the second step 1-2 is closer to the cockpit 200 than the rear end of the third step 1-1, wherein the rear longitudinal beam 3100 and the rear surround cross beam 3210 are respectively arranged on the third step 1-1 so that the rear surround cross beam can be flush with the rear longitudinal beam in the height direction.

[0326] Specifically, as shown in Figure 68, in an embodiment of the present disclosure, a first opening 6111 may be formed at the rear end of the connection assembly, and the rear longitudinal beam 3100 may be inserted into and secured to the first opening 6111. The cross-section of the rear longitudinal beam may be configured as a double-opening shape, with chamfers formed at the corners to enhance the connection strength and force transmission between the two.

[0327] As shown in FIG10 , in an embodiment of the present disclosure, a passenger compartment frame 2000 may include a sill beam 2100, and a connecting assembly is connected to the rear end of the sill beam 2100. By connecting the connecting assembly to the sill beam, when the vehicle is hit from the rear, the impact force of the rear longitudinal beam can be transferred to the sill beam through the connecting assembly, thereby dispersing the impact force and improving the vehicle's collision safety, torsional stiffness, and other performance.

[0328] As shown in FIG66 , in an embodiment of the present disclosure, the sill beam 2100 may have a first connecting surface 2102 and a second connecting surface 2103 that intersect with each other, and the first connecting surface and the second connecting surface may both be connected to the connecting assembly. The present disclosure does not limit the angle of intersection, which may be 90 degrees, 80 degrees, etc. With such a design, on the one hand, force can be transmitted from two different angles, and the passenger compartment can be protected from different angles; on the other hand, the sill beam, the connecting assembly and the battery pack can be better connected, and can be reinforced from two angles to form an integrated whole, thereby improving the connection stiffness; on the third hand, the rear cross member, the two connecting assemblies and the battery pack can form a closed ring here, and this ring is connected to the sill beam, which can improve the force transmission performance in the front-to-back and left-to-right directions.

[0329] The present disclosure does not limit the first and second connection surfaces. For example, in the illustrated embodiment, the first connection surface 2102 may be located on the rear end surface of the sill beam 2100, and the connection assembly may be directly connected to the first connection surface. Directly connecting the connection assembly to the rear end surface of the sill beam facilitates the connection assembly to directly transmit rear impact forces to the sill beam, thereby improving the force transmission effect between the two.

[0330] In the embodiment shown in FIG66 , the vehicle may further include an intermediate connector 2430 (i.e., a C-pillar outer pillar), and the second connecting surface 2103 may be the inner side of the sill beam 2100. The connecting assembly 6000 may be connected to the second connecting surface 2103 via the intermediate connector 2430. This design increases the force transmission area between the connecting assembly and the sill beam, thereby improving the force transmission effect.

[0331] The present disclosure does not limit the structure of the intermediate connector 2430. For example, in the embodiment shown in FIG66 , the intermediate connector 2430 may include a third connecting surface 2431 and a fourth connecting surface 2432. The third connecting surface may be connected to the second connecting surface 2103, and the fourth connecting surface may be connected to the connection assembly 6000. Thus, the connection assembly may be connected to the inner side of the door sill beam via the intermediate connector 2430. Specifically, the cross-section of the intermediate connector 2430 may be a triangle as shown in the figure. This design, due to its stability, provides greater durability and improves space utilization compared to a square shape.

[0332] The present disclosure does not limit the positional relationship between the fourth connecting surface 2432 and the first connecting surface. For example, in the embodiment shown in FIG66 , the fourth connecting surface and the first connecting surface can be parallel or coplanar. This design increases the force transmission area in the front-to-back direction, allowing the connecting assembly to simultaneously transmit force to both the sill beam 2100 and the intermediate connecting member 2430, thereby avoiding excessive pressure when only one of them contacts.

[0333] In order to enable the connection assembly to better transfer the sill beam in the front-rear direction, as shown in Figures 18 and 20, the projection of the sill beam 2100 in the front-rear direction of the vehicle and the projection of the connection assembly 6000 in the front-rear direction of the vehicle can at least partially overlap.

[0334] Similarly, in order to better transmit force between the connecting assembly and the sill beam in the vehicle width direction, as shown in Figures 18 and 20, in an embodiment of the present disclosure, the projection of the sill beam in the left and right directions of the vehicle and the projection of the connecting assembly in the left and right directions of the vehicle can at least partially overlap.

[0335] The present disclosure does not limit the specific structure of the sill beam 2100. For example, in an embodiment of the present disclosure, the sill beam may include a sill body 2100a (i.e., a body beam) and a sill reinforcement beam 2130. The body is provided with a sill reinforcement beam receiving space 2101, and the sill reinforcement beam is disposed within the sill reinforcement beam receiving space 2101. In this embodiment of the present disclosure, the sill body may be a cavity formed by the vehicle's side outer panel 2210 and side inner panel 2220. The portions of the side outer panel and side inner panel corresponding to the sill beam may also be referred to as the sill beam outer panel and sill beam inner panel. The sill beam outer panel and the side outer panel may be integrally formed, and the sill beam inner panel and the side inner panel may be integrally formed. The connecting assembly may be connected to both the sill body and the sill reinforcement beam, and the intermediate connecting member 2430 may be connected to both the sill body and the sill reinforcement beam. By connecting the connecting assembly to the sill body 2100a and the sill reinforcement beam, the connection strength between the connecting assembly and the sill beam is ensured. The present disclosure does not limit the connection method between the intermediate connecting member 2430 and the rocker reinforcement beam. For example, it can be indirectly connected to the rocker reinforcement beam through the side panel reinforcement 2420 described below.

[0336] As shown in Figures 66-70, in an embodiment of the present disclosure, the vehicle may further include a side reinforcement 2420 (i.e., a C-pillar inner pillar). At least a portion of the side reinforcement 2420 is disposed within the rocker beam receiving space 2101. The side reinforcement 2420 is connected to both the rocker beam 2130 and the body 2100a. Specifically, in the illustrated embodiment, the connecting assembly can be connected to the side reinforcement 2420 and the intermediate connecting member 2430 via fasteners. The side reinforcement 2420 is connected to the rocker beam and is also connected to the intermediate connecting member 2430 via fasteners. This design ensures the connection strength between the C-pillar 2400 and the rocker beam 2100, as well as the connecting assembly, and improves the strength between the rocker beam and the A-pillar 2300.

[0337] As shown in Figures 7, 71, and 75, in the embodiment of the present disclosure, the projections of the rocker reinforcement beam 2130, the intermediate connector 2430, and the side panel reinforcement 2420 in the vehicle width direction at least partially overlap. This design allows the rocker reinforcement beam, the intermediate connector 2430, and the side panel reinforcement 2420 to better transmit and disperse the impact force when the vehicle is hit from both sides.

[0338] As shown in Figure 75, in an embodiment of the present disclosure, the side reinforcement 2420 can extend beyond the rocker beam accommodating space 2101 to connect with the vehicle's C-pillar reinforcement plate 2410. This design allows pressure from the vehicle's roof to be transferred downward through the C-pillar reinforcement plate to the side reinforcement 2420, where it can be dispersed through other components connected to the side reinforcement 2420. Furthermore, when the vehicle is impacted from the rear, the side reinforcement 2420 can transfer some of the force upward through the C-pillar reinforcement plate 2410 to disperse the impact from behind. Furthermore, when the side reinforcement 2420 is struck from either side of the vehicle, the impact force can be transferred to the C-pillar reinforcement plate, which can then be dispersed through the C-pillar to the vehicle's passenger compartment frame 2000, improving the vehicle's collision safety and torsional stiffness.

[0339] As shown in Figures 18 and 20, in an embodiment of the present disclosure, in the vehicle height direction, the C-pillar reinforcement plate 2410 can be on the upper side of the rocker beam 2100, and the impact force exerted on the rocker beam and the side panel reinforcement 2420 can be transmitted upward through the C-pillar reinforcement plate.

[0340] As shown in Figures 72 and 74, in the implementation of the present disclosure, the connection assembly may further include force transmission ribs j1-j13, which may extend along the direction of the rear cabin frame 3000 toward the door sill beam. By providing force transmission ribs, on the one hand, the structure of the connection assembly itself can be strengthened, and on the other hand, the impact force from the rear can be better transmitted forward. The present disclosure does not limit the form of the force transmission ribs, for example, they may include main ribs, cross-shaped ribs, etc.

[0341] In the disclosed embodiment, the projection of the force transmission rib in the vehicle's fore-aft direction can at least partially overlap with the projection of the sill beam in the vehicle's fore-aft direction. This design can better transmit the rear impact force to the sill beam through the force transmission rib for dispersion.

[0342] As shown in Figure 26, in an embodiment of the present disclosure, the passenger compartment frame 2000 may further include a seat cross member 2610. The projection of the sill beam 2100 in the vehicle height direction may at least partially overlap with the projection of the seat cross member 2610 in the vehicle height direction. This design physically prevents the seat cross member from being pulled up when subjected to an upward pull load (the sill beam acts as a barrier), thereby ensuring the safety of the passenger compartment.

[0343] As shown in Figure 26, in an embodiment of the present disclosure, the projection of the sill beam 2100 in the vehicle width direction at least partially overlaps with the projection of the seat cross beam in the vehicle width direction. This design allows the sill beam to partially transfer the impact force to the seat cross beam when the vehicle is impacted from either side. The seat cross beam distributes the impact force, reducing damage to the passenger compartment and protecting passengers.

[0344] As shown in Figure 9, in an embodiment of the present disclosure, the sill beam may include an accommodating portion 2170 for partially accommodating the seat cross member. This accommodating portion may be formed by the structure of the sill beam itself, and the present disclosure does not limit its specific shape, as long as it can at least partially accommodate the seat cross member. Specifically, in the illustrated embodiment, the sill beam may be configured in a stepped shape, specifically including a first step surface, a second step surface, and a third step surface arranged in sequence in the height direction, with a connecting surface formed between the second step surface and the third step surface. The accommodating portion is formed by the third step surface and the connecting surface, wherein the third step surface overlaps with the seat cross member in the height direction, and the connecting surface overlaps with the seat cross member in the width direction.

[0345] As shown in Figure 54, in an embodiment of the present disclosure, the door sill beam can be provided with a battery pack mounting portion 2180. This mounting portion can be located below the accommodating portion 2170 in the vehicle height direction and outside the accommodating portion in the vehicle width direction. With this design, the seat crossbeam is connected to the battery pack, and battery pack longitudinal beams 4500 are provided to the left and right of the battery pack. The battery pack longitudinal beams are connected to the door sill beam battery pack mounting portion, and then the seat crossbeam is connected to the battery pack longitudinal beams 4500. Therefore, when the seat crossbeam and battery pack are connected, the seat crossbeam is still below the battery pack, making it less likely for the seat crossbeam to move vertically. In addition, the battery pack longitudinal beam and the door sill beam are spaced apart in the vehicle width direction, and the seat crossbeam and the door sill beam are spaced apart in both the width and height directions. Moreover, the seat crossbeam and the battery pack can be connected by the transverse fixings mentioned below through the connecting plate. In the event of a side collision, the force can first be transmitted to the transverse fixings through the door sill beam, and then transmitted to the seat crossbeam. However, the transverse fixings are relatively weak, and the seat crossbeam, battery pack and door sill beam 2100 are spaced apart in the width direction. Therefore, there will be a collapse distance when transmitting force, and then the force will be transmitted to the seat crossbeam to form multi-layer force transmission in the vertical direction and multi-segment force transmission in the left and right directions.

[0346] As shown in Figures 63-64, in an embodiment of the present disclosure, the sill beam 2100 may also be provided with a battery pack sealing portion 4100 (i.e., a seal). It should be noted that the battery pack sealing portion herein refers to the location for attaching the seal. This seal is used to seal the battery pack, thereby ensuring the internal seal of the battery pack and preventing rainwater, impurities, etc. from entering the battery pack through the gap between the battery pack and the vehicle body. In the vehicle height direction, the battery pack sealing portion may be located between the accommodating portion 2170 and the battery pack mounting portion 2180. In the vehicle width direction, the battery pack sealing portion may be located between the accommodating portion and the battery pack mounting portion. For example, in the aforementioned embodiment with a stepped sill beam, the battery pack sealing portion may be formed on the third step surface. While the battery pack and sill beam are sealed, their vertical projections can also overlap, extending the battery pack's left and right extensions, ensuring a tight seal while increasing capacity.

[0347] As shown in Figure 26, in an embodiment of the present disclosure, the vehicle may further include a transverse fastener 2611 connected between the sill beam 2100 and the seat cross beam 2610. The transverse fastener allows the sill beam and the seat cross beam to be integrated, facilitating the transfer of lateral impact forces acting on the sill beam to the seat cross beam. This disclosure does not limit the installation location of the transverse fastener; for example, in the illustrated embodiment, the transverse fastener may be located on the upper side of the seat cross beam.

[0348] As shown in Figure 55 , in an embodiment of the present disclosure, a vehicle's battery pack 4000 can be at least partially formed into a vehicle floor. This design eliminates the need for a floor, reducing vehicle weight. Furthermore, it reduces the gap between the battery pack and the vehicle body, lowering the vehicle's center of gravity and improving maneuverability. Alternatively, it can increase passenger compartment height or ground clearance, improving vehicle maneuverability.

[0349] As shown in Figures 18, 75, and 83, in an embodiment of the present disclosure, the upper end of the vehicle's C-pillar rear reinforcement plate 2412 can be connected to the vehicle frame longitudinal beam 2840 of the passenger compartment frame 2000. It should be noted that the vehicle frame longitudinal beam 2840 extends in the vehicle's front-to-rear direction and connects to the vehicle's A-pillar 2300 and C-pillar 2400 for force transmission. This design allows the C-pillar rear reinforcement plate 2412 to transfer rear impact forces to both the rocker beam and the vehicle frame longitudinal beam 2840, increasing the force transmission area and path.

[0350] In the disclosed embodiment, the upper end of the C-pillar rear reinforcement plate 2412 can be connected to the rear upper crossbeam 3220 of the passenger compartment frame 2000. The rear upper crossbeam 3220, C-pillar rear reinforcement plate 2412, side reinforcements 2420, connection assembly, and rear crossbeam can form a ring-shaped structure. This not only facilitates force transmission from the battery pack but also effectively improves vehicle body rigidity when the connection assembly is connected to the battery pack. Furthermore, this location forms the aforementioned storage space for the onboard charger. Therefore, when the battery pack is connected, this ring-shaped structure reinforces the storage space. Furthermore, with the battery pack located at the bottom, a "S"-shaped structure is formed at the rear, further enhancing rigidity.

[0351] As shown in Figures 75 to 82, in an embodiment of the present disclosure, the vehicle may further include a C-pillar front reinforcement plate 2411, the upper end of which is connected to the frame longitudinal beam, and the lower end of which is connected to the vehicle's rocker beam 2100. With this design, the C-pillar front reinforcement plate 2411, the frame longitudinal beam, the rocker beam, the battery pack 4000, and the vehicle roof can also form a ring-shaped structure, thereby enhancing the rigidity of the vehicle body. The vehicle roof here refers to the roof portion, the two sides of which are connected to the side panel assembly, and the A-pillar 2300 and the C-pillar 2400 are both provided on the side panel assembly.

[0352] In an embodiment of the present disclosure, the C-pillar front reinforcement plate 2411 may be disposed on the front side of the C-pillar rear reinforcement plate 2412 .

[0353] As shown in FIG75 , in an embodiment of the present disclosure, the C-pillar rear reinforcement plate 2412 may be provided with a C-pillar front reinforcement plate connection portion 2412a. The C-pillar rear reinforcement plate 2412 may be connected to the C-pillar front reinforcement plate 2411 via the C-pillar front reinforcement plate connection portion 2412a, thereby enabling force transmission between the C-pillar front reinforcement plate 2411 and the C-pillar rear reinforcement plate 2412 in the front-to-back direction. Furthermore, the C-pillar front reinforcement plate connection portion 2412a and the rocker beam are spaced apart in height, forming a three-layer force transmission path in the vertical direction: the vehicle frame longitudinal rail 2840, the C-pillar front reinforcement plate 2411 connection portion, and the rocker beam, thereby achieving a better force transmission effect.

[0354] 2. Battery pack mounting parts

[0355] The battery pack mounting part 5000 (i.e., the front compartment battery pack mounting part) can be connected to at least one end of the sill beam 2100 along the front-to-back direction. The battery pack mounting part is formed with a battery pack mounting surface 4502 (or a second battery pack mounting surface), and the battery pack mounting part is an integral part. With such a design, the integral part is connected to the battery pack, which can better improve the strength of the installation point of the battery pack, and the combination of the integral part and the battery pack can effectively improve the rigidity of the vehicle body. In addition, when transmitting force in the front-to-back direction, it can effectively transmit force to the sill beam. At the same time, because it is an integral part, it can effectively improve the force transmission capacity in the front-to-back direction with the support of the battery pack and the sill beam. Among them, the integral part itself has better rigidity, so the force transmission and rigidity improvement effect are better. Similar to the above-mentioned connection integrated part, the integral part here refers to a single component, which can be an integrally formed part, or it can be a part formed by connecting multiple components. It should be noted that the battery pack mounting bracket can be connected to the front end of the sill beam, or it can be connected to the rear end of the sill beam. For the convenience of description, the following will take the front end connected to the threshold beam as an example for introduction.

[0356] In the disclosed embodiments, the battery pack mounting member can be an integrally formed structure. This design can enhance the rigidity of the battery pack mounting member itself, thereby improving its connection with the vehicle body and battery pack, effectively improving the vehicle's torsional resistance and overall integrity.

[0357] As shown in Figure 10, in an embodiment of the present disclosure, the battery pack mounting member 5000 can be connected to the front end of the rocker beam 2100 in the front-to-back direction. Such a design can improve the force transmission effect of the vehicle's front cabin collision and increase the rigidity of the front cabin part. Specifically, when the front cabin of the vehicle is impacted, it can transmit the impact force toward the rocker beam and the battery pack through the battery pack mounting member, reducing damage to the passenger compartment. In some embodiments, in order to further enhance the force transmission effect between the battery pack mounting member and the rocker beam, the projection of the battery pack mounting member in the vehicle's front-to-back direction and the projection of the rocker beam in the vehicle's front-to-back direction can at least partially overlap.

[0358] As shown in FIG. 3, in an embodiment of the present disclosure, the vehicle may further include a front longitudinal beam 1100. In the front-rear direction of the vehicle, the battery pack mounting member 5000 may be disposed behind the front longitudinal beam 1100, and the front longitudinal beam is connected to the battery pack mounting member. With such a design, when the front longitudinal beam is impacted, it can transmit the impact force to the sill beam and the battery pack through the battery pack mounting bracket, reducing the injury to the occupant compartment. In order to improve the force transmission effect between the battery pack mounting member and the front longitudinal beam, in some embodiments, the projection of the front longitudinal beam in the front-rear direction of the vehicle and the projection of the battery pack mounting member in the front-rear direction of the vehicle may at least partially overlap.

[0359] The present disclosure does not limit how the front longitudinal beam 1100 is connected to the battery pack mounting member. For example, in the embodiment shown in FIG. 40, a protruding beam 5100 aligned with the front longitudinal beam 1100 may be formed at the front end of the battery pack mounting member 5000. The rear end of the front longitudinal beam may be configured to be hollow to sleeved on the outer periphery of the protruding beam, and may be fixed by bolts or the like.

[0360] In order to improve the connection strength of the connection position between the front longitudinal beam 1100 and the battery pack mounting member and prevent the front longitudinal beam from invading the occupant compartment under force, as shown in FIG. 40, in an embodiment of the present disclosure, the front end of the battery pack mounting member may have a stop surface 5102 surrounding the protruding beam, and the stop surface is located at the end of the protruding beam away from the front longitudinal beam.

[0361] As shown in FIGS. 40 and 41, in some other embodiments, the cross-section of the protruding beam 5100 may be configured as a "day" shape, and a second reinforcing rib 1101 corresponding to the second intermediate rib 5101 of the protruding beam may be provided on a part of the front longitudinal beam 1100 located at the front end of the protruding beam.

[0362] After connecting the front longitudinal beam 1100, the battery pack mounting member 5000, and the sill beam 2100 in sequence, a force transmission path from the front of the vehicle to the rear of the vehicle can be formed among the three, thereby improving the smoothness of the force transmission of the entire vehicle body. In addition, after connecting the aforementioned connection integration member to the rear end of the sill beam, the stiffness of the connection integration member can be better and the process can be simpler.

[0363] In an embodiment of the present disclosure, at least one of the front longitudinal beam 1100 and the sill beam may be detachably connected to the battery pack mounting member 5000. With such a design, the battery pack mounting member is designed as an independent component, which can facilitate the independent optimization design of the battery pack mounting member to improve its own strength and stiffness, and this detachable design can simplify the processing and connection process of the vehicle body, and is convenient for disassembly and assembly.

[0364] In the disclosed embodiment, the front longitudinal beam is detachably connected to the battery pack mounting member. As mentioned above, this design allows for a more convenient and simplified assembly process at this location, facilitating ease of operation. It should be noted that the battery pack mounting member can be bonded to the passenger compartment frame 2000. While the majority of the battery pack mounting member is metal, the portion connecting to the passenger compartment can be made of carbon fiber to facilitate bonding.

[0365] As shown in Figures 38 and 42, in an embodiment of the present disclosure, the vehicle may further include an A-pillar 2300, and the battery pack mounting member 5000 may be connected to the A-pillar 2300. The present disclosure does not limit its connection with the A-pillar, which may be a direct connection or an indirect connection. With such a design, on the one hand, the vehicle has more force transmission paths in the front-to-back direction and the width direction, and in addition to transmitting force through the door sill beam and the battery pack, etc., force may also be transmitted through the A-pillar. In addition, the battery pack, A-pillar, door sill beam and battery pack mounting member may be integrated together, especially the battery pack mounting member is directly connected to the door sill beam, the front longitudinal beam 1100, the A-pillar and the battery pack respectively. When it is an integrated part itself, it can better connect the various parts to transmit force, and the strength of the connection points between the battery pack connector and the various components is also strong, so the integrity is better, thereby making the vehicle body rigidity better. In addition, since the battery pack is a relatively large component and is spread under the vehicle body, and these components are on both sides of the front of the vehicle, this connection form can utilize the entire battery pack to strengthen the rigidity of this part of the structure, so that the front side can be connected as a whole, thereby increasing its rigidity, suppressing deformation of the vehicle during driving, and improving the driving experience. Moreover, in the event of a collision, since these components are connected together, they can effectively suppress the vertical flipping moment of the front longitudinal beam during the collision, preventing damage to the passenger compartment and also preventing damage to the battery pack after the components flip over.

[0366] As shown in FIG. 42 , in an embodiment of the present disclosure, the projection of the battery pack mounting member 5000 in the vehicle width direction at least partially overlaps with the projection of the A-pillar 2300 in the vehicle width direction. Such a design is more conducive to the force transmission effect between the two in the width direction.

[0367] As shown in Figure 37, in an embodiment of the present disclosure, the vehicle may further include a dash panel 1200, with a battery pack mounting member 5000 connected to the dash panel 1200, an A-pillar 2300, and a rocker beam 2100. Because the battery pack mounting member, the battery pack, the rocker beam, and the A-pillar form a hollowed-out annular structure in the vertical direction, this design allows the dash panel to be added to the hollowed-out portion, further improving the structural rigidity.

[0368] In some embodiments, the battery pack mounting member and the front panel 1200 can be directly connected, and the front panel can be an integrally formed part. With such a design, since the integrally formed part itself has high rigidity, it has a better effect when combined with other parts.

[0369] To improve the front-to-rear force transmission effect of the battery pack mounting member, ensure smoother force transmission, and reduce vertical turning torque, as shown in FIG38 , in an embodiment of the present disclosure, the first end of the battery pack mounting member 5000 can be connected to the vehicle's front longitudinal beam 1100, and the second end of the battery pack mounting member can be connected to the door sill beam 2100. It should be noted that the second end of the battery pack mounting member can also be connected to the battery pack.

[0370] As shown in Figure 38, in an embodiment of the present disclosure, the cross-sectional area of ​​the battery pack mounting member near the side sill beam can be larger than the cross-sectional area of ​​the battery pack mounting member near the front longitudinal beam 1100. This design allows the battery pack mounting member to increase the force transmission area when the impact force from the front of the vehicle is dissipated backward, preventing the smaller force transmission area from causing higher pressure and potentially damaging the passenger compartment.

[0371] As shown in Figure 55 , in an embodiment of the present disclosure, the vehicle may further include a battery pack 4000, which may be directly connected to at least one of the battery pack mounting member 5000 and the rocker beam 2100. This direct connection can improve the connection strength at the connection point, enhancing the effectiveness of the battery pack assembly and the rocker beam assembly. In some embodiments, the battery pack may be directly connected to both the battery pack mounting member and the rocker beam.

[0372] As shown in Figures 11 and 22, in an embodiment of the present disclosure, the vehicle may further include a battery pack 4000, and the projection of the corner of the battery pack in the vehicle height direction may be located within the projection of the battery pack mounting member 5000 in the vehicle height direction. It should be explained that the corner here refers to the connection portion between the front crossbeam of the battery pack and the longitudinal beam of the battery pack, and the front crossbeam and longitudinal beam of the battery pack refer to the frame crossbeam and frame longitudinal beam, and the battery pack is connected to the vehicle through the frame crossbeam and frame longitudinal beam. With such a design, the corner position can be protected by the battery pack mounting member.

[0373] As shown in Figures 29 and 30, in an embodiment of the present disclosure, the battery pack 4000 can be provided with a battery pack mounting point 4004, through which the battery pack can be connected to the battery pack mounting member 5000. The minimum distance between the battery pack mounting point 4004 and the corner is less than a preset distance. Since the battery pack mounting points are generally arranged on the battery pack frame, that is, the left and right frames, adding a connection to the battery pack near the inflection point can improve the rigidity of the connection between the battery pack and the vehicle body.

[0374] For example, the preset distance may be ¼ of the distance from the corner to an adjacent corner in the vehicle width direction.

[0375] For example, the preset distance is 1 / 4 of the maximum distance from the left edge to the right edge of the battery pack.

[0376] As shown in Figure 3, in an embodiment of the present disclosure, two battery pack mounting members 5000 may be spaced apart in the vehicle width direction. The vehicle may also include a dash lower cross member 1210, with each end of the dash lower cross member connected to the two battery pack mounting members. Each end of the dash lower cross member may be directly connected to the battery pack mounting members and indirectly connected to the rocker beam via the battery pack mounting members. The battery pack connector is connected to the front longitudinal beam 1100 and the A-pillar. Force from the front of the vehicle is primarily transmitted through the two battery pack mounting members and the dash lower cross member. This reduces the number of force-transmitting components and the fact that the battery pack mounting member is a one-piece molded component. Consequently, there are relatively few front force-transmitting components and, consequently, relatively few joints. This reduces the risk of fracture at the load-bearing joints during force transmission. The two battery pack mounting members are connected to the A-pillar, and the dash lower cross member is directly connected to the battery pack mounting member. This allows force to be transmitted through the battery pack mounting member toward the A-pillar, preventing deformation of components in the front cabin from intruding into the passenger compartment. In addition, in some other embodiments, the front lower cross member may also be an integrally formed structure to further reduce the connection points of the front force transmission member.

[0377] As shown in Figure 9, in some embodiments, the dash lower cross member 1210 can be connected to the vehicle's battery pack 4000. With this design, the battery pack is separately connected to the dash lower cross member and two battery pack mounting components. Because these three components are connected to the A-pillar for force transmission, when the battery pack, dash lower cross member, and battery pack mounting components are connected simultaneously, the front compartment can be connected and integrated into a single unit, thereby increasing both the battery pack and vehicle body rigidity.

[0378] In some embodiments, the front lower cross member 1210 and the battery pack can be directly connected to further reduce the number of connection points of the front force transmission member and improve the connection strength. In addition, in some other embodiments, the front lower cross member and the battery pack can also be indirectly connected, which is not limited by this disclosure.

[0379] As shown in Figure 50, in an embodiment of the present disclosure, the bottom surface of the dash lower cross member 1210 can be provided with a cross member mounting surface 1212 (i.e., the lower cross member battery pack mounting surface), and the battery pack mounting member 5000 can be provided with a battery pack mounting component mounting surface 5004. The cross member mounting surface 1212 and the battery pack mounting component mounting surface can form a battery pack mounting surface. This design can increase the connection area between the battery pack and the vehicle body, thereby increasing the connection strength and improving the force transmission effect.

[0380] The crossbeam mounting surface 1212 and the battery pack mounting surface can be located on the same horizontal plane. This design can make the force transmission effect smoother on the one hand, and will not damage the battery pack when connected on the other hand.

[0381] As shown in Figure 50 , in an embodiment of the present disclosure, the projection of at least one of the dash lower cross member 1210 and the battery pack mounting member 5000 in the vehicle height direction at least partially overlaps with the projection of the battery pack 4000 in the vehicle height direction. The projection of at least one of the dash lower cross member and the battery pack mounting member in the vehicle height direction at least partially overlaps with the projection of the battery pack cells in the vehicle height direction. This design allows the battery pack to expand forward to a greater extent, thereby increasing its capacity.

[0382] As shown in Figure 10, in an embodiment of the present disclosure, at least a portion of the bottom surface of the rocker beam 2100 can be formed as a battery pack mounting surface. This design increases the connection area between the battery pack and the vehicle body, improving connection stability. Furthermore, it allows the battery pack to expand left and right, increasing its capacity.

[0383] As shown in Figure 10, in an embodiment of the present disclosure, the projection of the rocker beam 2100 in the vehicle height direction can at least partially overlap with the projection of the battery cells of the vehicle's battery pack 4000 in the vehicle height direction. This allows the battery pack to expand more area to the sides, thereby increasing its capacity. Furthermore, by increasing the overlap area with the rocker beam, the battery pack can be better integrated with the vehicle body in the fore-aft direction, improving body rigidity. Furthermore, the connection between the battery pack and the rocker beam can form a very large load-bearing surface. When connected to the front side components, this can suppress the vertical turning moment of the front side components when subjected to force.

[0384] As shown in Figure 50, in an embodiment of the present disclosure, the crossbar mounting surface 1212, the battery pack mounting surface 5004, and at least a portion of the bottom surface of the door sill beam 2100 can be formed as a battery pack mounting surface. This design expands the battery pack area from the front and left and right sides, increasing the battery pack capacity.

[0385] As shown in Figure 50, the crossbeam mounting surface 1212, the battery pack mounting surface 5004, and at least a portion of the bottom surface of the door sill beam 2100 are located on the same horizontal plane. This design not only allows for smoother force transmission, but also prevents damage to the battery pack during connection.

[0386] In an embodiment of the present disclosure, the battery pack mounting member can be sealed to the dash lower cross member 1210. This design can achieve front sealing, thereby achieving multiple sealing of the passenger compartment together with the dash panel 1200.

[0387] As shown in Figures 32 and 35 , in some embodiments, the battery pack mounting member may be provided with a dash lower cross member connecting portion 5000a2 / 5000b2 / 5000c2 / 5000d2, and the dash lower cross member 1210 may be provided with a second connector connecting portion 1210a / 1210b / 1210c / 1210d, which is connected to the dash lower cross member connecting portion. To facilitate sealing, the second connector connecting portion 1210a / 1210b / 1210c / 1210d may be located above the dash lower cross member connecting portion in the vehicle height direction. Specifically, as shown in the figure, the battery pack mounting part can be provided with a first connection part 11a2 of the front lower cross beam, a second connection part 11b2 of the front lower cross beam, a third connection part 11c2 of the front lower cross beam and a fourth connection part 11d2 of the front lower cross beam, wherein the first surface 15a of the front lower cross beam is connected to the first connection part of the front lower cross beam, the second surface 15b of the front lower cross beam is connected to the second connection part 11b2 of the front lower cross beam, the third surface 15c of the front lower cross beam is connected to the third connection part 11c2 of the front lower cross beam, and the fourth surface 15d of the front lower cross beam is connected to the fourth connection part 11d2 of the front lower cross beam to form the two Z-shaped overlapping relationships shown, thereby improving the connection strength.

[0388] As shown in Figures 50 and 51, in an embodiment of the present disclosure, the front lower cross member 1210 can be connected to the rear side of the battery pack mounting member 5000. It should be explained that the rear side here does not mean that the front lower cross member is completely located on the rear side of the battery pack mounting member as a whole, as long as its connection point with the battery pack mounting member is located on the rear side of the front force-bearing surface of the battery pack mounting member. With this design, since the battery pack mounting member is relatively forward, the forward impact force will first be transmitted to the battery pack mounting member, which is relatively large and relatively solid, and then transmitted to the front lower cross member to be dispersed to both sides, which has a better force transmission effect.

[0389] As shown in FIG13 , in an embodiment of the present disclosure, the vehicle may further include a first cross member 1220 (i.e., a front upper cross member) connected between two battery pack mounting members 5000. The first cross member can increase the force transmission path of the vehicle in the width direction.

[0390] In some embodiments, the length of the first cross member can be shorter than the length of the dash lower cross member 1210. With this design, since the dash lower cross member is located below the first cross member, is used to mount the battery pack, and can transmit force to the battery pack mounting assembly, a longer dash lower cross member can increase the force-bearing area and bring its connection point with the battery pack mounting assembly closer to the connection point between the A-pillar and the battery pack mounting assembly, thereby reducing the torque between these two mounting locations.

[0391] In some embodiments, the first cross member may be sealed and connected to the battery pack mounting member to achieve front sealing, thereby achieving multiple sealing of the passenger compartment together with the front panel 1200 .

[0392] As shown in FIG13 , in an embodiment of the present disclosure, the first cross member 1220 can be located above the dash lower cross member 1210 in the vehicle height direction. With this design, when the front cabin of the vehicle is subjected to frontal forces, the front longitudinal member 1100 and the front subframe assembly 1300 are located at two different heights. The front longitudinal member is higher (higher than the front floor panel), and the first cross member is at the same height as the front longitudinal member, allowing for load transfer from above. The dash lower cross member can be said to be at the same height as the front floor panel, i.e., at the same height as the front subframe assembly 1300, allowing for load transfer from below.

[0393] As shown in Figures 13 and 15 , in an embodiment of the present disclosure, the first crossbeam 1220 can be located forward of the dash lower crossbeam 1210 in the vehicle's fore-aft direction. With this design, when the vehicle is struck from the front, the force is first applied to the first crossbeam, which transmits this force to the A-pillars via the battery pack mounting members on both sides. Only then does the dash lower crossbeam receive force and transmit this force to the battery pack. To a certain extent, the front first crossbeam can protect the battery pack. Furthermore, the first crossbeam, dash lower crossbeam, and two battery pack mounting members can form a U-shaped structure, which improves force transmission at this location, thereby enhancing the vehicle's collision and torsional resistance.

[0394] Similar to the dash lower cross member 1210, as shown in Figures 32 and 34, in an embodiment of the present disclosure, the battery pack mounting member 5000 may be provided with a first cross member connecting portion (5000a1 / 5000b1 / 5000c1 / 5000d1), and the first cross member may be provided with a first connector connecting portion (1220a / 1220b / 1220c / 1220d), the first cross member connecting portion being connected to the first connector connecting portion (1220a / 1220b / 1220c / 1220d). To facilitate a sealed connection, the first connector connecting portion (1220a / 1220b / 1220c / 1220d) may be located above the first cross member connecting portion in the vehicle height direction. Specifically, as shown in the figure, the battery pack mounting part may be provided with a first crossbeam first connection part 5000a1, a first crossbeam second connection part 5000b1, a first crossbeam third connection part 5000c1 and a first crossbeam fourth connection part 5000d1, wherein the first surface 1220a of the first crossbeam is connected to the first crossbeam first connection part 5000a1, the second surface 1220b of the first crossbeam is connected to the first crossbeam second connection part 5000b1, the third surface 1220c of the first crossbeam is connected to the first crossbeam third connection part 5000c1, and the fourth surface 1220d of the first crossbeam is connected to the first crossbeam fourth connection part 5000d1, so as to form the Z-shaped overlap relationship shown in the figure, thereby improving the connection strength.

[0395] Similar to the above-mentioned front lower crossbeam 1210, as shown in Figures 13 and 15, in an embodiment of the present disclosure, the first crossbeam 1220 can be connected to the rear side of the battery pack mounting component. Similar to the above, the rear side here does not mean that the first crossbeam is completely located on the rear side of the entire battery pack mounting component, as long as its connection point with the battery pack mounting component is located on the rear side of the front force-bearing surface of the battery pack mounting component. With this design, since the battery pack mounting component is relatively forward, the forward impact force will first be transmitted to the battery pack mounting component, which is a relatively large and relatively solid component, and then transmitted to the first crossbeam to be dispersed to both sides, resulting in a better force transmission effect.

[0396] As shown in FIG. 15 , in an embodiment of the present disclosure, the vehicle may further include a central channel 2700 , which may be connected to the first crossbeam 1220 to form a force transmission path from the first crossbeam to the central channel 2700 in the length direction of the vehicle.

[0397] In order to achieve better force transmission effect between the first crossbeam and the central channel 2700, as shown in Figure 15, in an embodiment of the present disclosure, the projection of the first crossbeam 1220 in the front-rear direction of the vehicle at least partially overlaps with the projection of the central channel 2700 in the front-rear direction of the vehicle.

[0398] As shown in FIG. 37, in an embodiment of the present disclosure, the cross-section of the first crossbeam 1220 may be configured as a "day" shape, and the third intermediate rib 1231 of the first crossbeam may be flush with the upper surface of the central channel 2700. The "day" shape structure can enhance the strength of the first crossbeam, and the fact that the third intermediate rib of the first crossbeam is flush with the upper surface of the central channel 2700 is beneficial to the transmission of force in the front-rear direction.

[0399] As shown in FIGS. 9 and 15, in an embodiment of the present disclosure, the cross-section of the lower front crossbeam 1210 may be configured as a right triangle, and the inclined surface of the lower front crossbeam faces rearward and upward. The triangular structure occupies less space to form a space above it for arranging other components.

[0400] As shown in FIG. 9, in an embodiment of the present disclosure, the central channel 2700 may be connected to the lower front crossbeam 1210. In order to form a force transmission path between the lower front crossbeam and the central channel 2700.

[0401] The present disclosure does not limit the connection manner between the central channel 2700 and the first crossbeam and the lower front crossbeam. For example, in an embodiment of the present disclosure, the front panel 1200 may be fixedly connected to the first crossbeam and the lower front crossbeam and is located above the first crossbeam and the lower front crossbeam, while the central channel 2700 is fixedly connected to the front panel to be indirectly connected to the first crossbeam and the lower front crossbeam.

[0402] In order to make the force transmission effect between the lower front crossbeam 1210 and the central channel 2700 better in the front-rear direction, as shown in FIG. 16, in an embodiment of the present disclosure, the projection of the lower front crossbeam 1210 in the vehicle's front-rear direction and the projection of the central channel 2700 in the vehicle's front-rear direction may at least partially overlap.

[0403] As shown in FIGS. 5 and 28, in an embodiment of the present disclosure, the vehicle may further include a front panel 1200, a rear floor crossbeam, a front seat crossbeam 2630, and a rear seat crossbeam 2620. Among them, the front panel may be connected above the first crossbeam and the lower front crossbeam, and the central channel 2700 may be respectively connected to the front panel, the rear floor crossbeam, the front seat crossbeam 2630, and the rear seat crossbeam 2620.

[0404] As shown in FIG. 22, in an embodiment of the present disclosure, a front subframe mounting point 5003 may be formed on the battery pack mounting member 5000, and the front subframe mounting point 5003 is adapted to be connected to the front subframe assembly 1300 of the vehicle. By connecting the front subframe assembly 1300 to the battery pack mounting member, an additional body force transmission path can be added. Specifically, when the front longitudinal beam 1100 of the vehicle is impacted, the impact force can be at least partially transmitted to the front subframe assembly 1300 through the battery pack mounting member for dispersion, thereby protecting the passenger compartment.

[0405] In an embodiment of the present disclosure, the front subframe mounting point may be disposed on a side of the battery pack mounting point away from the rocker beam, so that the force of the front subframe assembly 1300 can be transmitted to the battery pack, thereby preventing the front subframe assembly 1300 from intruding into the passenger compartment.

[0406] In the disclosed embodiment, the front subframe mounting point can be located forward of the dash lower cross member 1210, so that the dash lower cross member can limit the rearward displacement of the front subframe and prevent it from intruding into the passenger compartment. The longitudinal distance between the front subframe mounting point and the dash lower cross member can be 100 mm to 150 mm.

[0407] As shown in Figure 38, in an embodiment of the present disclosure, the battery pack mounting part may include a first mounting portion 5005, and the first mounting portion 5005 may be directly connected to the A-pillar 2300 of the vehicle, and at least part of the first mounting portion is located in front of the A-pillar. It should be explained here that the position near the lower side of the A-pillar coincides with part of the sill beam, that is, this "part" belongs to both the A-pillar and the sill beam. Therefore, the connection between the first mounting part and the A-pillar is actually a connection with the sill beam. With such a design, the sill beam, the A-pillar and the battery pack mounting part can be formed into a whole, providing multiple force transmission paths to protect the cockpit.

[0408] As shown in Figure 42, in an embodiment of the present disclosure, the battery pack mounting assembly may further include a second mounting portion 5006, which is connected to the side of the A-pillar 2300 facing the vehicle's passenger compartment. The first and second mounting portions allow the battery pack mounting assembly to connect to the A-pillar in two directions, improving the connection strength and increasing the force transmission path in the front-to-back and left-to-right directions.

[0409] As shown in FIG. 42 , in an embodiment of the present disclosure, the second mounting portion 5006 may be connected to the door sill beam to increase the force transmission path between the battery pack mounting component and the door sill beam.

[0410] This disclosure does not limit the specific structure of the sill beam 2100. For example, in the embodiment shown in Figure 82, the sill beam 2100 may include a main beam 2100a (i.e., the sill body) and a sill reinforcement beam 2130 positioned within the main beam 2100a. It should be noted that "inside" here refers to the inside and outside of the vehicle width. In this case, the second mounting portion 5006 may be connected to the sill reinforcement beam 2130, with the second mounting portion 5006 located on the side of the sill reinforcement beam facing the passenger compartment. The provision of the sill reinforcement beam can enhance the strength and force transmission efficiency of the vehicle's sill beam.

[0411] As shown in Figures 43 to 48 and 82, in an embodiment of the present disclosure, the rocker beam 2100 may further include: a rocker inner panel 2110 and a rocker outer panel 2120, which together form a main beam 2100a; and a first insert 2201, which is located between the rocker outer panel 2120 and the rocker inner panel 2110. The second mounting portion is sequentially connected to the rocker inner panel 2110, the first insert 2201, and the rocker reinforcement beam, and the battery pack mounting member is fixedly connected to the rocker reinforcement beam 2130 by bolts that pass through the first insert 2201 and the side panel assembly. It should be explained that the side panel assembly here includes a side panel outer panel 2210, a side panel inner panel 2220, a rocker inner panel 2110 and a rocker outer panel 2120, wherein the rocker inner panel 2110 and the side panel inner panel are integrally formed, and the rocker outer panel 2120 and the side panel outer panel are integrally formed, and the side panel outer panel and the side panel inner panel can be enclosed to form the A-pillar 2300.

[0412] This disclosure does not limit the first insert. For example, in the embodiments shown in Figures 43-48, the second insert 2202 can be a cavity-reinforced foam or plastic, or other lightweight cavity-filled material. The first insert is an aluminum profile embedded in the second insert 2202, providing mounting threads or holes for the reinforcement beam and battery pack mounting components.

[0413] As shown in Figures 43 to 48, in an embodiment of the present disclosure, the second embedment 2202 can be embedded with a third embedment 2203 and a fourth embedment 2204. The part where the third embedment and the fourth embedment are located is the A-pillar, and the battery pack mounting part is used to connect with the third embedment in the width direction and with the fourth embedment in the length direction, that is, to form a connection with the A-pillar in the width direction and the length direction through the third embedment and the fourth embedment.

[0414] As shown in FIG. 42 and FIG. 43 , in an embodiment of the present disclosure, the projection of the rocker reinforcement beam 2130 in the vehicle width direction at least partially overlaps with the projection of the second mounting portion 5006 in the vehicle width direction, so that the two can better transmit force in the vehicle width direction.

[0415] As shown in FIG. 82 , in an embodiment of the present disclosure, the rocker inner panel 2110 may be constructed as a bent plate having a plane flush with the bottom surface of the battery pack mounting member to provide a mounting position for the sealing plate of the battery pack.

[0416] The position of the battery pack mounting member for overlapping with the side inner panel can be configured in an L-shape to overlap with the rocker inner panel 2110 in the width direction and the length direction respectively.

[0417] As shown in Figure 42, in an embodiment of the present disclosure, the bottom surface of the second mounting portion 5006 and the mounting surface of the door sill beam 2100 can be located at the same horizontal plane. This design can facilitate sealing and prevent foreign objects from entering the passenger compartment.

[0418] As shown in Figure 50 , in an embodiment of the present disclosure, the vehicle's battery pack 4000 can be sealed against the crossbar mounting surface 1212, the battery pack mounting surface 5004, and at least a portion of the bottom surface of the sill beam 2100. This design prevents impurities, moisture, and the like from entering the passenger compartment through the connection gaps.

[0419] The present disclosure does not limit how the battery pack is sealed to the crossbeam mounting surface 1212, the battery pack mounting surface, and at least a portion of the bottom surface of the sill beam. For example, in the embodiment shown in FIG10 , the vehicle may further include a seal 4100, by which the battery pack may be sealed to the crossbeam mounting surface 1212, the battery pack mounting surface, and at least a portion of the bottom surface of the sill beam. The seal may be a sealing plate, a sealing gasket, or the like.

[0420] The crossbeam mounting surface 1212 , the battery pack mounting component mounting surface, and at least a portion of the bottom surface of the door sill beam are flush in the height direction to provide a mounting position for the battery pack seal.

[0421] The present disclosure does not limit the structure of the side panel inner panel 2220. The structure will be described below using the embodiment shown in FIG26. Specifically, the side panel inner panel 2220 can be constructed to have a first step surface, a second step surface, and a third step surface, which are staggered from bottom to top, and a connecting surface connecting the second and third step surfaces. The vehicle may also include a front seat crossbeam 2630 and a rear seat crossbeam 2620. The battery pack can be mounted on the first step surface, the sealing plate can be connected to the second step surface, and a space can be formed between the third step surface and the connecting surface to avoid the front seat crossbeam 2630 and the rear seat crossbeam 2620.

[0422] As shown in FIG26 , in an embodiment of the present disclosure, an inner sill structure 2150 may be provided on the outer surface of the side panel inner panel. A first reinforcing profile 2151 may be provided on the outer surface of the inner sill structure at a position corresponding to the front seat cross member 2630, and a second reinforcing profile 2152 may be provided at a position corresponding to the rear seat cross member 2620. The outer surfaces of the first and second reinforcing profiles respectively abut against the sill reinforcement beam 2130. The inner sill structure may be connected to the upper surfaces of the front seat cross member 2630 and the rear seat cross member 2620 via transverse fasteners. The provision of the inner sill structure, the first reinforcing profile, and the second reinforcing profile effectively enhances the strength of the sill beam itself and the strength of its connection to the front seat cross member 2630 and the rear seat cross member 2620.

[0423] In the embodiment of the present disclosure, the middle portion of the front crossbeam 2630 of the seat can be bonded to the battery pack, and both ends of the front crossbeam 2630 of the seat can be screwed to the battery pack. The middle portion of the rear crossbeam 2620 of the seat can be bonded to the battery pack, and both ends of the rear crossbeam 2620 of the seat can be connected to the battery pack.

[0424] To improve the seal between the battery pack and the vehicle body, as shown in Figure 26, in the embodiment of the present disclosure, the distance between the battery pack mounting point on the first step surface and the sealing plate in the width direction is 20mm-30mm. The battery pack can be compressed and fitted with the sealing plate through the battery pack sealing foam 4200. Designing this width distance to be smaller allows the corresponding positions of the battery pack and the sealing plate to be compressed more tightly to achieve a seal when the battery pack is fixed to the first step surface.

[0425] As shown in Figure 38, in an embodiment of the present disclosure, the battery pack mount can be provided with a third reinforcing rib extending from the vehicle's front longitudinal beam 1100 to the A-pillar. This design not only enhances the strength of the battery pack mount through the third reinforcing rib, but also allows the battery pack mount to better transmit force in the vehicle's fore-aft direction.

[0426] As shown in Figure 38, in an embodiment of the present disclosure, a mounting groove can be formed on the battery pack mounting member 5000, and a mounting hole for the steering column to pass through can be formed at the bottom of the groove. During assembly, other components are attached with sealing foam, etc., which extends into the mounting groove and is squeezed and sealed with the bottom surface of the groove.

[0427] The above describes in detail the optional implementation methods of the present disclosure in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above implementation methods. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0428] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0429] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle (1), characterized in that: Threshold beam (2100); Multiple battery pack mounts (5000, 6000); The battery pack mounting member (5000, 6000) is connected to at least one end of the door sill beam (2100) in the front-rear direction; The two battery pack mounting parts (5000, 6000) are arranged at intervals in the vehicle width direction, and the two door sill beams (2100) are arranged at intervals in the vehicle width direction; In the vehicle width direction, the minimum distance between the two battery pack mounting parts (5000, 6000) is smaller than the minimum distance between the two door sill beams (2100); The battery pack mounting member (5000, 6000) has a battery pack mounting portion (7000), and the battery pack mounting portion (7000) is suitable for connecting with the battery pack (4000); Wherein, the battery pack mounting component (5000, 6000) is an integrated component.

2. The vehicle (1) according to claim 1, characterized in that The plurality of battery pack mounting components (5000, 6000) include at least two battery pack mounting components (5000) respectively connected to the front end portions of the corresponding door sill beams (2100) and two battery pack mounting components (6000) respectively connected to the rear end portions of the corresponding door sill beams (2100).

3. The vehicle (1) according to claim 2, characterized in that In the vehicle length direction, the maximum distance between the battery pack mounting member (5000) connected to the front end of the sill beam (2100) and the battery pack mounting member (6000) connected to the rear end of the sill beam (2100) is greater than the length of the sill beam (2100).

4. The vehicle (1) according to any one of claims 1 to 3, characterized in that The projection of the battery pack mounting member (5000, 6000) in the front-rear direction of the vehicle at least partially overlaps with the projection of the corresponding door sill beam (2100) in the front-rear direction of the vehicle; or, The projection of the battery pack mounting member (5000, 6000) in the left-right direction of the vehicle at least partially overlaps with the projection of the corresponding door sill beam (2100) in the left-right direction of the vehicle.

5. The vehicle (1) according to any one of claims 1 to 4, characterized in that The battery pack mounting component (5000, 6000) is an integrally formed structure.

6. The vehicle (1) according to any one of claims 1 to 5, characterized in that The projections of the battery pack mounting parts (5000, 6000) located on the same side in the width direction of the vehicle in the front-rear direction of the vehicle at least partially overlap.

7. The vehicle (1) according to claim 2 or 3, characterized in that The battery pack mounting surfaces (7300) of the four battery pack mounting parts (5000, 6000) are located on the same horizontal plane.

8. The vehicle (1) according to any one of claims 2, 3 and 7, characterized in that The threshold beam (2100) is formed with a threshold beam battery pack mounting surface (2104), and the threshold beam battery pack mounting surface (2104) is suitable for connecting with a battery pack (4000); The door sill battery pack mounting surface (2104) and the battery pack mounting surface (7300) on the battery pack mounting portion (7000) are located on the same horizontal plane.

9. The vehicle (1) according to any one of claims 1 to 8, characterized in that The plurality of battery pack mounting members (5000, 6000) include two front compartment battery pack mounting members (5000) spaced apart in the vehicle width direction, the front compartment battery pack mounting members (5000) being connected to the front end of the corresponding door sill beam (2100); The vehicle (1) further comprises a front lower cross beam (1210), and two ends of the front lower cross beam (1210) are respectively connected to the two front compartment battery pack mounting parts (5000).

10. The vehicle (1) according to claim 9, characterized in that The front enclosure lower cross beam (1210) is provided with a lower cross beam battery pack mounting surface (1212), and the lower cross beam battery pack mounting surface (1212) is suitable for connecting with a battery pack (4000); The lower crossbeam battery pack mounting surface (1212) and the battery pack mounting surface (7300) on the battery pack mounting portion (7000) are located on the same horizontal plane.

11. The vehicle (1) according to claim 9 or 10, characterized in that The vehicle (1) further includes two A-pillars (2300) arranged at intervals in the vehicle width direction, the front compartment battery pack mounting member (5000) being connected to the corresponding A-pillars (2300), and the vehicle (1) further includes a front panel (1200), both ends of the front panel (1200) being connected to the two A-pillars (2300).

12. The vehicle (1) according to claim 11, characterized in that The vehicle (1) further comprises a front upper cross beam (1220), and two ends of the front upper cross beam (1220) are connected to the two A-pillars (2300); The front enclosure upper cross beam (1220) and the front enclosure lower cross beam (1210) are arranged at intervals; The two front compartment battery pack mounting parts (5000), the front enclosure lower cross beam (1210), the front enclosure upper cross beam (1220) and the two A-pillars (2300) are connected to form a first annular structure (L001).

13. The vehicle (1) according to claim 12, characterized in that The front panel (1200) is an integrally formed structure; or, The front panel (1200) and the front upper cross beam (1220) are an integrally formed structure.

14. The vehicle (1) according to any one of claims 1 to 13, characterized in that The plurality of battery pack mounting members (5000, 6000) include two rear compartment battery pack mounting members (6000) spaced apart in the vehicle width direction, the rear compartment battery pack mounting members (6000) being connected to the rear end portions of the corresponding sill beams (2100); The vehicle (1) further comprises a rear enclosure lower cross beam (3210), and both ends of the rear enclosure lower cross beam (3210) are respectively connected to corresponding rear compartment battery pack mounting parts (6000); The rear enclosure lower cross beam (3210) is spaced apart from the battery pack (4000).

15. The vehicle (1) according to claim 14, characterized in that The vehicle (1) further comprises a rear floor cross beam (2510), on which a rear floor battery pack mounting surface (2516) is formed, and the rear floor battery pack mounting surface (2516) and the sill beam battery pack mounting surface (2104) on the sill beam (2100) are in the same horizontal plane.

16. The vehicle (1) according to claim 15, characterized in that The two ends of the rear floor cross beam (2510) are respectively connected to the corresponding door sill beams (2100), and the rear floor cross beam (2510), the two door sill beams (2100), and the rear lower cross beam (3210) are connected to form a second annular structure (L002).

17. The vehicle (1) according to any one of claims 14 to 16, characterized in that The vehicle (1) further comprises a rear floor middle cross beam (2513), and two ends of the rear floor middle cross beam (2513) are respectively connected to corresponding door sill beams (2100); The rear floor middle cross beam (2513) is suitable for connecting with the battery pack (4000).

18. The vehicle (1) according to claim 17, characterized in that In the front-rear direction of the vehicle, the rear floor middle cross beam (2513) is arranged between the front enclosure lower cross beam (1210) and the rear enclosure lower cross beam (3210) of the vehicle (1); The vehicle (1) further comprises a rear floor cross beam (2510), and in the front-rear direction of the vehicle, the rear floor middle cross beam (2513) is connected to the rear floor cross beam (2510).

19. The vehicle (1) according to any one of claims 14 to 18, characterized in that The vehicle (1) further comprises two C-pillars (2400) arranged at intervals in the vehicle width direction, the two C-pillars (2400) being respectively connected to corresponding rear compartment battery pack mounting parts (6000); The projection of the C-pillar (2400) in the front-rear direction of the vehicle at least partially overlaps with the projection of the corresponding rear compartment battery pack mounting member (6000) in the front-rear direction of the vehicle.

20. The vehicle (1) according to claim 19, characterized in that The vehicle (1) further comprises a rear upper cross beam (3220), and both ends of the rear upper cross beam (3220) are respectively connected to corresponding C-pillars (2400); The rear enclosure upper cross beam (3220), the two C-pillars (2400), the rear enclosure lower cross beam (3210) and the two rear compartment battery pack mounting parts (6000) are connected to form a third annular structure (L003).

21. The vehicle (1) according to any one of claims 1 to 20, characterized in that The vehicle (1) further comprises a battery pack (4000), wherein the battery pack (4000) is directly connected to the plurality of battery pack mounting members (5000, 6000); The front end of the battery pack (4000) is respectively connected to two front compartment battery pack mounting parts (5000) arranged in the width direction of the vehicle, and the rear end of the battery pack (4000) is respectively connected to two rear compartment battery pack mounting parts (5000) arranged in the width direction of the vehicle.

22. The vehicle according to claim 17 or 18, characterized in that The vehicle (1) further includes a battery pack (4000), wherein the battery pack (4000) is directly connected to the rear floor middle cross beam (2513); The rear floor middle cross beam (2513) is connected with the two door sill beams (2100) and the rear enclosure lower cross beam (3210) to form a fourth ring structure (L004).

23. The vehicle (1) according to any one of claims 9 to 13, characterized in that The vehicle (1) further comprises a rear floor cross member (2510); The two door sill beams (2100), the two front compartment battery pack mounting parts (5000), the front panel lower cross beam (1210), and the rear floor cross beam (2510) are connected to form a fifth annular structure (L005), and the fifth annular structure (L005) has a hollow area (L0051), and the upper surface of the battery pack (4000) covering the hollow area (L0051) is the vehicle floor.

24. The vehicle (1) according to any one of claims 1 to 23, characterized in that The vehicle (1) further comprises a front support beam (3640) and a rear upper cross beam (3220), one end of the front support beam (3640) being connected to the rear upper cross beam (3220), and the other end of the front support beam (3640) being connected to a rear longitudinal beam (3100) of the vehicle (1); The vehicle (1) further comprises a rear wheel cover (3700), wherein the rear wheel cover (3700) is connected to the rear longitudinal beam (3100), and the other end of the front support beam (3640) is also connected to the rear wheel cover (3700); The vehicle (1) further comprises a rear support beam (3650), one end of the rear support beam (3650) being connected to the rear wheel housing (3700), and the other end of the rear support beam (3650) being connected to the rear longitudinal beam (3100).

25. The vehicle according to claim 24, characterized in that The vehicle (1) further comprises a rear wheel housing cross beam (3710), both ends of which are respectively connected to two rear wheel housings (3700) spaced apart in the vehicle width direction; The vehicle (1) further comprises a first reinforcing beam (3610), wherein the first reinforcing beam (3610) is respectively connected to the front support beam (3640) and the rear wheel housing (3700).

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