Vehicle

Abstract

The present disclosure relates to a vehicle including: a rear compartment frame; a passenger compartment frame; the connecting integrated piece is arranged between the rear compartment frame and the passenger compartment frame in the front-back direction of the vehicle and connected with the rear compartment frame and the passenger compartment frame, and the connecting integrated piece is an integrated piece. By means of the design, the integration degree of the connecting integrated piece can be improved, the assembling technology is simplified, and light weight of a vehicle is facilitated. And moreover, the strength of the mounting point of the battery pack can be better improved.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular, to a vehicle. Background Art

[0002] In the front-to-back direction of the vehicle, the front longitudinal beam, the sill beam and the rear longitudinal beam are usually connected in sequence from front to back, and the front longitudinal beam, the sill beam and the rear longitudinal beam constitute a force transmission path in the front-to-back direction of the vehicle. However, in the related art, the part where the front end of the rear longitudinal beam is connected to the sill beam is connected by multiple sheet metal parts (usually more than ten to twenty sheet metal parts) through splicing, which not only causes redundant structures of overlapping edges between multiple sheet metal parts, but also causes the strength of the connection area to present a fault distribution, resulting in the connection stiffness of the rear longitudinal beam and the sill beam being affected, thereby affecting the transmission of collision force in the front-to-back direction of the vehicle when the vehicle is rear-ended. Summary of the invention

[0003] An object of the present disclosure is to provide a vehicle to at least partially solve the problems in the related art.

[0004] In order to achieve the above-mentioned objectives, the present disclosure provides a vehicle, comprising: a rear cabin frame; a passenger compartment frame; and a connection integration component, wherein in the front-rear direction of the vehicle, the connection integration component is arranged between the rear cabin frame and the passenger compartment frame, and is respectively connected to the rear cabin frame and the passenger compartment frame, wherein the connection integration component is an integrated component.

[0005] Through the above technical solution, the integration of the connection integrated parts can be improved, the assembly process can be simplified, and it is beneficial to the lightweight of the vehicle. In addition, the strength of the installation point of the battery pack can be better improved.

[0006] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] 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 specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0008] Figure 1 is a schematic side view of a vehicle provided by an embodiment of the present disclosure;

[0009] Figure 2 is a schematic exploded side view of a vehicle provided by an embodiment of the present disclosure;

[0010] Figure 3 This is a schematic diagram of a three-dimensional structure of a vehicle provided by an embodiment of the present disclosure when viewed from above;

[0011] Figure 4 yes Figure 1 A schematic cross-sectional view of the middle section along NN;

[0012] Figure 5 yes Figure 1 Schematic diagram of the middle NN section;

[0013] Figure 6 yes Figure 5 A magnified schematic diagram of part A;

[0014] Figure 7 yes Figure 5 A magnified schematic diagram of part B;

[0015] Figure 8 is a schematic diagram of a rear three-dimensional structure of a vehicle provided in one embodiment of the present disclosure;

[0016] Fig. 9 is a longitudinal cross-sectional schematic diagram of a partial structure of a vehicle provided by an embodiment of the present disclosure;

[0017] Fig.10 is a bottom view schematic diagram of a vehicle provided by an embodiment of the present disclosure, wherein the ring structure is shown by a dotted line, wherein the battery pack is not shown;

[0018] Fig.11 is a bottom view schematic diagram of a vehicle provided by an embodiment of the present disclosure, wherein a ring structure is shown by a dotted line, wherein a battery pack is shown;

[0019] Fig.12 is a schematic diagram of a three-dimensional structure of a vehicle provided by an embodiment of the present disclosure, wherein a ring structure is shown by a dotted line;

[0020] Fig.13 is a three-dimensional structural schematic diagram of a vehicle partial structure provided by an embodiment of the present disclosure, wherein a first annular structure is shown by a dotted line;

[0021] Fig.14 yes Fig.12 A schematic diagram of a three-dimensional structure of a vehicle from an EE perspective, wherein a first annular structure is shown by a dotted line;

[0022] Fig.15 FIG. 1 is a three-dimensional structural diagram of a vehicle partial structure according to an embodiment of the present disclosure (FF perspective);

[0023] Fig.16 FIG. 1 is a three-dimensional structural schematic diagram of a vehicle partial structure according to an embodiment of the present disclosure (front side perspective);

[0024] Fig.17 FIG is a three-dimensional structural schematic diagram of a vehicle part structure according to an embodiment of the present disclosure (from a rear side perspective), wherein a third annular structure is shown by a dotted line;

[0025] Fig.18 FIG is a schematic diagram of a three-dimensional structure of a rear structure of a vehicle according to an embodiment of the present disclosure;

[0026] Fig.19 FIG is a schematic side view of a portion of a vehicle according to an embodiment of the present disclosure;

[0027] Fig. 20 yes Fig.19 Schematic diagram of the medium GG interface;

[0028] Fig.21 is a three-dimensional structural schematic diagram of a vehicle partial structure according to an embodiment of the present disclosure (HH perspective);

[0029] Fig. 22 is a side view schematic diagram of the connection between the front subframe and the battery pack of a vehicle according to an embodiment of the present disclosure;

[0030] Fig.23 is a side view schematic diagram of the connection between the rear subframe and the battery pack of a vehicle according to an embodiment of the present disclosure;

[0031] Fig.24 is a schematic diagram of a three-dimensional structure in which a battery pack of a vehicle according to an embodiment of the present disclosure is connected to a front compartment battery pack mounting member;

[0032] Fig.25 It is a schematic diagram of a three-dimensional structure in which a battery pack of a vehicle according to an embodiment of the present disclosure is connected to a rear compartment battery pack mounting member;

[0033] Fig.26 is a front view schematic diagram of a side impact force transmission structure of a vehicle according to an embodiment of the present disclosure;

[0034] Fig. 27 is a schematic diagram of a three-dimensional structure of a battery pack of a vehicle according to an embodiment of the present disclosure;

[0035] Fig.28 is a schematic diagram of the assembly of a battery pack and a seat crossbeam of a vehicle according to an embodiment of the present disclosure;

[0036] Figure 29-31 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;

[0037] Fig.32 is a partial exploded schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0038] Fig.33 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;

[0039] Fig.34 yes Fig.33Schematic diagram of the Z1 section;

[0040] Fig.35 yes Fig.33 Schematic diagram of the X1 section;

[0041] Fig.36 yes Fig.33 Schematic diagram of the Y1 section;

[0042] Figure 37-39 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;

[0043] Figure 40-41 is a partial exploded schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0044] Figure 42-45 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;

[0045] Fig.46 is a partial exploded schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0046] Figure 47-54 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;

[0047] Fig.55 is a schematic exploded side view of a vehicle provided by an embodiment of the present disclosure;

[0048] Fig.56 is a side sectional view of a rear cross beam of a floor of a vehicle provided by an embodiment of the present disclosure;

[0049] Figure 57-58 is a partial schematic diagram of the position of a door sill of a vehicle provided by an embodiment of the present disclosure;

[0050] Fig.59 This is a schematic diagram of the connection between a vehicle central channel and a seat crossbeam provided by an embodiment of the present disclosure;

[0051] Figure 60-64 is a partial schematic diagram of the location of a battery pack of a vehicle provided by an embodiment of the present disclosure;

[0052] Figures 65-76 is a partial schematic diagram of the position of a battery pack mounting member of a vehicle provided by an embodiment of the present disclosure;

[0053] Fig.77 It is a schematic diagram of the relative positions of a rear floor crossbeam and a front reinforcement plate of a C-pillar of a vehicle provided by an embodiment of the present disclosure;

[0054] Fig.78 yes Fig.77DD schematic diagram;

[0055] Fig.79 yes Fig.77 EE schematic diagram;

[0056] Figures 80-83 It is a partial schematic diagram of a vehicle provided in one embodiment of the present disclosure.

[0057] Description of Reference Numerals

[0058] Front cabin frame 1000

[0059] Front lower crossbeam, second crossbeam, second crossbeam 1210

[0060] Beam mounting surface 1212

[0061] Second connecting member connecting portion 1210a / 1210b / 1210c / 1210d

[0062] Battery pack installation point 1211 under the front panel crossbeam

[0063] Front upper crossbeam, first crossbeam 1220

[0064] First connecting member connecting portion 1220a / 1220b / 1220c / 1220d

[0065] Front longitudinal beam 1100

[0066] Front panel 1200

[0067] Longitudinal beam middle reinforcement, second reinforcement 1101

[0068] Beam No. 1 1230

[0069] No. 1 beam middle reinforcement, third intermediate reinforcement 1231

[0070] Front subframe assembly 1300

[0071] Front subframe rear crossbeam 1310

[0072] Front subframe rear mounting point 1301

[0073] Front subframe rear wishbone support 1302

[0074] Front energy absorption box 1400

[0075] Front anti-collision beam 1500

[0076] Crew compartment frame 2000

[0077] Threshold beam, aluminum threshold beam, threshold 2100

[0078] Threshold body 2100a

[0079] Sill reinforcement beam accommodation space 2101

[0080] Door sill reinforcement beam 2130

[0081] Accommodation section 2170

[0082] Battery pack installation unit 2180

[0083] Door sill inner panel (integrated with side panel inner panel) 2110

[0084] Door sill outer panel (integrated with side panel) 2120

[0085] Door sill reinforcement profile 2140

[0086] Inner threshold reinforcement longitudinal beam, threshold diagonal support beam 2150

[0087] Lateral forward reinforcement block, front connecting block 2151

[0088] Lateral rear reinforcement block, rear connection block 2152

[0089] Inner threshold cover 2160

[0090] Side outer panel 2210

[0091] Side inner panel 2220

[0092] Side inner panel reinforcement block 2222

[0093] Side inner panel sealing plate 2221 Side panel assembly 2200 First insert 2201 Second insert 2202 The third insert 2203 Fourth block 2204 Side inner panel body 22201 Side inner panel neutral surface 2220a Side inner panel lower end surface 2220b Side inner panel lower elevation 2220c Side inner panel middle surface 2220d Side inner panel elevation 2220e Upper end surface of the side inner panel 2220f First ring structure (A ring) L001 Second ring structure L002 The third ring structure (C ring) L003 Fourth ring structure L004 Fifth ring structure (B ring) L005 Sixth ring structure L006 A-pillar 2300 The seventh ring structure (D ring) L007 C-pillar 2400 C-pillar reinforcement plate 2410 C-pillar inner pillar, side wall reinforcement 2420 C-pillar outer column, middle connecting piece 2430 C-pillar inner column lower support block 2421 C-pillar front reinforcement plate 2411 C-pillar rear reinforcement plate 2412 C-pillar front reinforcement plate connection part 2412a Rear floor, second connecting plate 2500 Rear floor beam 2510 Rear floor upper crossbeam, upper section of rear floor crossbeam 2511 Rear floor middle beam 2513 Rear floor lower crossbeam, lower section of rear floor crossbeam 2512

[0094] Floor beam reinforcement beam 2514

[0095] First connecting plate 2520

[0096] Inspection port 2521

[0097] Floor Cover 2515

[0098] Seat front beam 2630

[0099] Seat beam 2610

[0100] Seat rear beam 2620

[0101] Seat crossbeam connecting plate, transverse fixings 2611

[0102] Seat crossbeam middle fixing point 2612

[0103] Seat beam side end plate 2613

[0104] Seat crossbeam end fixing point 2614

[0105] Seat beam rubber surface 2615

[0106] Central channel 2700

[0107] Central channel cover 2710

[0108] Central channel top surface 2720

[0109] Central channel lower reinforcement plate 2730

[0110] Top cover outer panel 2810

[0111] Top cover rear crossbeam upper plate 2820

[0112] Top cover rear crossbeam lower plate 2830

[0113] Frame longitudinal beam 2840

[0114] Rear cabin frame 3000

[0115] Rear longitudinal beam 3100

[0116] Rear upper crossbeam 3220

[0117] Rear lower cross beam 3210

[0118] Rear subframe assembly 3300

[0119] Rear energy absorption box 3400

[0120] Rear anti-collision beam 3500

[0121] Rear panel 3200

[0122] Lower surface of the front mounting point of the rear subframe 3302

[0123] Rear subframe front crossbeam 3310

[0124] Rear subframe front mounting point 3301

[0125] Front support beam 3640

[0126] Back support beam 3650

[0127] First reinforcement beam 3610

[0128] Second reinforcement beam 3620

[0129] The third reinforcement beam 3630

[0130] Rear wheel cover 3700

[0131] Rear wheel housing crossbeam 3710

[0132] Battery Pack 4000

[0133] Seal 4100

[0134] Battery pack sealing foam 4200

[0135] Battery pack front beam 4300

[0136] Battery pack rear beam 4400

[0137] Battery pack longitudinal beam, battery pack frame longitudinal beam 4500

[0138] Battery pack upper surface 4001

[0139] Front end of the battery pack front beam 4301

[0140] Battery pack rear beam rear end surface 4401

[0141] Battery pack front mounting point 4002

[0142] Battery pack rear mounting point 4003

[0143] Battery pack front left / right mounting point 4004

[0144] Battery pack front left center / right center mounting point 4005

[0145] Battery pack center front mounting point 4006

[0146] Battery pack middle rear installation point 4007

[0147] Front middle crossbeam, battery pack middle front crossbeam 4600

[0148] Rear middle cross beam, battery pack middle rear cross beam 4700

[0149] Longitudinal beam upper end face 4501

[0150] Battery pack mounting surface 4502

[0151] Longitudinal beam outer end face 4503

[0152] Battery pack side mounting point 4504

[0153] Front compartment battery pack mounting kit 5000

[0154] Second beam connection portion 5000a2 / 5000b2 / 5000c2 / 5000d2

[0155] Lower end surface of the rear section of the front longitudinal beam 5001

[0156] Battery pack installation point 5002 at the rear section of the front longitudinal beam

[0157] First beam connection portion 5000a1 / 5000b1 / 5000c1 / 5000d1

[0158] Third mounting portion 2031 5031

[0159] Fourth mounting portion 2032 5032

[0160] Front subframe mounting point (sixth mounting part) 5003

[0161] Second middle rib 5101

[0162] Protruding beam 5100

[0163] Stop surface 5102

[0164] Connecting integrated parts, rear compartment battery pack mounting parts 6000

[0165] First mounting surface 6001

[0166] Connection 6100

[0167] Longitudinal beam connection, rear longitudinal beam connection 6110

[0168] First opening 6111

[0169] Fifth mounting portion 4121 6121

[0170] Seventh installation part 4123 6123

[0171] Middle rib, first middle rib j12

[0172] Reinforcement rib, first reinforcement rib j10

[0173] Muscle j1-j13

[0174] Raised plate 6002

[0175] Bolts S1-S30

[0176] First step 1-1

[0177] Second step 1-2

[0178] The third step 1-3 DETAILED DESCRIPTION

[0179] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0180] In the present disclosure, unless otherwise stated, the directions or positional relationships indicated by the directional words such as "up, down, left, right, front, back" are defined based on the drawing directions shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific directional structure and operation, and therefore cannot be understood as a limitation on the present disclosure. For example, "up, down, left, right, front, back" can be defined based on the up and down directions, left and right directions, and front and back directions of the vehicle in a normal driving state. Specifically in the accompanying drawings, the X direction is the front and back direction of the vehicle, wherein the side to which the arrow points is "front", and the opposite is "back"; the Y direction is the left and right direction of the vehicle, wherein the side to which the arrow points is "right", and the opposite is "left"; the Z direction is the up and down direction of the vehicle, wherein the side to which the arrow points is "up" and the opposite is "down". The terms "inside" and "outside" refer to the inside and outside of the corresponding structural contours.

[0181] In addition, it should be noted that the terms used, such as "first", "second", etc., are used to distinguish one element from another element, and do not have order or importance. In addition, in the description with reference to the drawings, the same number in different drawings represents the same element.

[0182] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0183] In addition, the "cross beam" in the present disclosure may refer to a beam extending in the left-right direction of the vehicle, and the "longitudinal beam" may refer to a beam extending in the front-rear direction of the vehicle. The "front longitudinal beam" refers to a longitudinal beam extending backward from the front anti-collision beam of the vehicle. The "rear longitudinal beam" refers to a longitudinal beam extending forward from the rear anti-collision beam of the vehicle. There are usually two longitudinal beams and they are symmetrically arranged about the front-rear center line of the vehicle. For example, the "front longitudinal beam" usually includes a "left front longitudinal beam" and a "right front longitudinal beam" arranged at intervals in the left-right direction.

[0184] In addition, without any other special explanation, the meanings of 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" involved in the various embodiments of the present disclosure are their well-known meanings in the art.

[0185] like Figures 1 to 83 As shown, the present disclosure provides a vehicle, which may include a vehicle body and a battery pack arranged at the bottom of the vehicle body.

[0186] like Figure 1 and Figure 2 As shown, the vehicle body may include a front cabin, a passenger cabin and a rear cabin from front to rear. The front cabin may include a front cabin frame 1000 and a front subframe installed below the front cabin frame 1000; the rear cabin may include a rear cabin frame and a rear subframe installed below the rear cabin frame 3000. The battery pack 4000 may be installed below the passenger cabin and between the front subframe and the rear subframe in the length direction of the vehicle.

[0187] like Figure 3 As shown, 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.

[0188] The rear end of the front longitudinal beam 1100 can be connected to the front end of the corresponding threshold beam 2100, and the front end of the rear longitudinal beam 3100 can be connected to the rear end of the corresponding threshold beam 2100, that is, the front longitudinal beam 1100 located on the left side of the vehicle is connected to the threshold 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 threshold 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 threshold 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 threshold beam 2100 located on the right side of the vehicle.

[0189] like Figure 3 As shown, the rear end of the front longitudinal beam 1100 can be connected to the front end of the rocker beam 2100 through the front cabin battery pack mounting component 5000 described below, and the front end of the rear longitudinal beam 3100 can be connected to the rear end of the rocker beam 2100 through the rear cabin battery pack mounting component 6000 described below. Please see below for detailed description.

[0190] like Figure 3 As shown, the front cabin frame 1000 may further include a front anti-collision beam 1500 arranged along the width direction of the vehicle, and the left and right ends of the front anti-collision beam 1500 are respectively connected to the front ends of the corresponding front longitudinal beams 1100 in the pair of front longitudinal beams 1100 through the front anti-collision box. The rear cabin frame 3000 may further include a rear anti-collision beam 3500 arranged along the width direction of the vehicle, and the left and right ends of the rear anti-collision beam 3500 are respectively connected to the front ends of the corresponding rear longitudinal beams 3100 in the pair of front longitudinal beams 1100 through the rear anti-collision box.

[0191] like Fig.11As shown, the battery pack 4000 may include a battery tray, and the battery tray includes a tray bottom plate and a battery pack front crossbeam 4300, a battery pack rear crossbeam 4400, and two battery pack longitudinal beams 4500 (a battery pack left longitudinal beam and a battery pack right longitudinal beam) all arranged on the tray bottom plate. The battery pack front crossbeam 4300, the battery pack rear crossbeam 4400, and the two battery pack longitudinal beams 4500 are connected to form a ring structure (i.e., the seventh ring structure L007).

[0192] As mentioned above, in the related art, the structure connecting the front longitudinal beam 1100 or the rear longitudinal beam 3100 to the front end of the threshold beam 2100 is composed of multiple sheet metal parts connected together by splicing, which is difficult to assemble and has low connection stiffness, which is not conducive to the transmission of collision force.

[0193] In view of this, if Figures 1 to 28 As shown, the vehicle provided by the present disclosure also includes a plurality of battery pack mounting components, which are connected to at least one end of the sill beam 2100 along the front-to-rear direction, and two battery pack mounting components (such as the front compartment battery pack mounting component 5000 and the rear compartment battery pack mounting component 6000 described below) are spaced apart in the vehicle width direction, and the two sill beams 2100 are spaced apart in the vehicle width direction, and in the vehicle width direction, the minimum distance between the two battery pack mounting components is smaller than the minimum distance between the two sill beams 2100, and the battery pack mounting component is formed with a battery pack mounting portion, which is suitable for connecting with the battery pack 4000, wherein the battery pack mounting component is an integral component.

[0194] In the present disclosure, since the battery pack mounting part is an integrated part with good rigidity, compared with the prior art solution in which the connecting part between the front longitudinal beam 1100 or the rear longitudinal beam 3100 and the threshold beam 2100 is spliced ​​by multiple sheet metal parts, the solution of the present disclosure can improve the integration of the battery pack mounting part, simplify the assembly process, and help to reduce the weight of the vehicle. In addition, since the rigidity of the battery pack mounting part is improved, the strength of the installation point of the battery pack 4000 can be better improved. By connecting the battery pack mounting part and the battery pack 4000 as one, the rigidity of the entire vehicle body can also be improved.

[0195] In addition, since the battery pack mounting part is an integral part and is connected to the battery pack 4000, the vehicle body battery integration effect is improved. When the vehicle is hit, under the action of the battery pack mounting part, the battery pack 4000, and the threshold beam 2100, a path with good front-to-back force transmission effect is formed, which is conducive to transmitting and dispersing the collision force in the front-to-back direction. Such a design makes the vehicle's force transmission and rigidity improvement effect better, which can improve the vehicle's collision performance.

[0196] 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 2100. Thus, 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 resistance.

[0197] It can be understood that the battery pack mounting part being an integrated part 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 separately processed and then connected into one, and the present disclosure does not limit this.

[0198] Optionally, in one embodiment of the present disclosure, the battery pack mounting component can be an integrally formed structure to simplify the processing and assembly process. At the same time, the battery pack mounting component itself can have better rigidity to further improve the integration effect of the battery pack mounting component with the vehicle body and the battery pack 4000.

[0199] For example, in the present disclosure, the battery pack mounting member may be a casting, specifically, a casting manufactured by an aluminum alloy die-casting process. It is understood that in addition to aluminum alloy, the battery pack mounting member may be made of other materials, such as steel.

[0200] In the present disclosure, the number and relative positions of the battery pack mounting parts are not limited. Figures 1 to 3 As shown, there may be two, three, four or other multiple battery packs. When arranged, the two battery pack mounting components may be respectively connected to the front end portion of the corresponding sill beam 2100, or the two battery pack mounting components may be respectively connected to the rear end portion of the corresponding sill beam 2100, or one of the two battery pack mounting components may be arranged to be connected to the front end portion of the sill beam 2100, and the other of the two battery pack mounting components may be arranged to be connected to the rear end portion of the corresponding sill beam 2100 (or the sill beam 2100 on the other side of the vehicle).

[0201] like Figure 3 As shown, in one embodiment of the present disclosure, the plurality of battery pack mounting members may include at least two battery pack mounting members (i.e., two front compartment battery pack mounting members 5000) respectively connected to the front end portions of the corresponding sill beam 2100 and two battery pack mounting members (i.e., two rear compartment battery pack mounting members 6000) respectively connected to the rear end portions of the corresponding sill beam 2100. In the present disclosure, the front compartment battery pack mounting member 5000 and the rear compartment battery pack mounting member 6000 located on the left side of the vehicle may be respectively connected to the two ends of the sill beam 2100 located on the left side of the vehicle body, and the front compartment battery pack mounting member 5000 and the rear compartment battery pack mounting member 6000 located on the right side of the vehicle may be respectively connected to the two ends of the sill beam 2100 located on the right side of the vehicle body.

[0202] In this way, providing at least four battery pack mounting parts 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 .

[0203] Moreover, the front cabin battery pack mounting component 5000 and the rear cabin battery pack mounting component 6000 correspond to each other front to back in the front and rear directions of the vehicle. The front cabin battery pack mounting component 5000 and the rear cabin battery pack mounting component 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 component 5000, the sill beam 2100 and finally to the rear cabin battery pack 4000 mounting component can better transmit and disperse the collision force.

[0204] After the battery pack 4000 is installed, a relatively large force-bearing surface can be formed. The front compartment battery pack mounting member 5000 and the rear compartment battery pack mounting member 6000 can form a frame with the sill beam 2100 to increase the body rigidity, improve the torsional rigidity, resist vehicle deformation, and improve the riding experience.

[0205] Optionally, the two front compartment battery pack mounting components 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 components 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.

[0206] like Figure 3 As shown, in the vehicle length direction, the maximum distance between the battery pack mounting component connected to the front end of the sill beam 2100 (i.e., the front compartment battery pack mounting component 5000) and the battery pack mounting component connected to the rear end of the sill beam 2100 (i.e., the rear compartment battery pack mounting component 6000) is greater than the length of the sill beam 2100.

[0207] Such a design makes the battery pack mounting part a separate component relative to the rocker beam 2100, and when transmitting force, the collision force can be first transmitted through the battery pack mounting part with greater rigidity (in case of a frontal collision, the collision force first passes through the front compartment battery pack mounting part 5000, and in 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, thereby improving the collision performance of the vehicle.

[0208] Optionally, in the present disclosure, the projection of the battery pack mounting member in the front-to-rear direction of the vehicle (i.e., the length direction of the vehicle) at least partially overlaps with the projection of the corresponding sill beam 2100 in the front-to-rear direction of the vehicle, that is, the projection of the battery pack mounting member on the left side of the vehicle in the front-to-rear direction of the vehicle can at least partially overlap with the projection of the sill beam 2100 on the left side of the vehicle in the front-to-rear direction of the vehicle, and the projection of the battery pack mounting member on the right side of the vehicle in the front-to-rear direction of the vehicle can at least partially overlap with the projection of the sill beam 2100 on the right side of the vehicle in the front-to-rear direction of the vehicle. Such a design facilitates the connection between the battery pack mounting member and the sill beam 2100, thereby forming a reliable force transmission path, achieving a better and more effective force transmission effect.

[0209] Optionally, in the present disclosure, the projection of the battery pack mounting part 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 sill beam 2100 in the left-right direction of the vehicle. That is, the projection of the battery pack mounting part located 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 sill beam 2100 located on the left side of the vehicle in the left-right direction of the vehicle, and the projection of the battery pack mounting part located 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 sill beam 2100 located on the right side of the vehicle in the left-right direction of the vehicle. With such a design, it is convenient for the battery pack mounting part and the corresponding sill beam 2100 to construct a force transmission path extending along the front-to-back direction of the vehicle, so that the force transmission in the left-to-right direction of the vehicle is better. In addition, the sill beam 2100 can be limited in the front-to-back and left-to-right directions, and the connection is more stable, which can better improve the rigidity.

[0210] Optionally, in the present disclosure, the projections of the battery pack mounting parts located on the same side in the vehicle width direction in the vehicle front-to-back direction at least partially overlap. For example, the projections of the front compartment battery pack mounting part 5000 and the rear compartment battery pack mounting part 6000 located on the left side in the vehicle width direction in the vehicle front-to-back direction at least partially overlap, and the projections of the front compartment battery pack mounting part 5000 and the rear compartment battery pack mounting part 6000 located on the right side in the vehicle width direction in the vehicle front-to-back direction at least partially overlap. Such a design is conducive to making the front compartment battery pack mounting part 5000 and the rear compartment battery pack mounting part 6000 face each other in the front and rear sides, which makes the force transmission smoother, prevents the generation of deflection torque, facilitates the front-to-back transmission and dispersion of the collision force, and can also improve the collision performance of the vehicle.

[0211] In the present disclosure, referring to the accompanying drawings, in one embodiment of the present disclosure, the mounting surfaces of the battery packs 4000 of the four battery pack mounting components are located on the same horizontal plane, that is, the mounting surfaces of the battery packs 4000 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.

[0212] Such a design can make the above-mentioned four battery pack mounting parts 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 can be 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 the deflection torque; and, the gap between the battery pack 4000 and various components can be reduced, so that it can be better integrated with the vehicle body, that is, the battery pack 4000 is better integrated with the vehicle body.

[0213] It is understandable that in other embodiments of the present disclosure, any two, three or four of the mounting surfaces of the battery pack 4000 of the above-mentioned four battery pack mounting members may not be located on the same horizontal plane.

[0214] In the present disclosure, as shown in the figure, the threshold beam 2100 is formed with a battery pack 4000. That is, in the present disclosure, in addition to setting the battery pack 4000 installation point on the above-mentioned battery pack installation part, the threshold beam 2100 can also be provided with an installation point (i.e.) to install the battery pack 4000, so that the reliability of the installation of the battery pack 4000 can be further improved, and the integration effect of the battery pack 4000, the battery pack installation part, and the threshold beam 2100 can be improved, and the rigidity of the threshold beam 2100 can be improved, and the rigidity and force transmission effect of the vehicle body can be further improved.

[0215] 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. The battery pack 4000, the battery pack mounting parts 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 moment in the vertical direction when the front and rear directions are subjected to force.

[0216] Optionally, it can be located at the same horizontal plane as the battery pack 4000 mounting surface on the battery pack 4000 mounting portion. With such a design, the door sill beam 2100 can be 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 transmission of the collision force between the front compartment battery pack mounting part 5000, the battery pack 4000 and the rear compartment battery pack mounting part 6000 is smoother, there is no deflection moment, no additional burden is formed on the battery pack 4000, and the battery pack 4000 will not be damaged due to the deflection moment; and the gap between the battery pack 4000 and various components can be reduced, so that it has better integration with the vehicle body, that is, the integration of the battery pack 4000 and the vehicle body is better.

[0217] In this disclosure, Figure 3As shown, the vehicle may further include a dash lower cross beam 1210, and the two ends of the dash lower cross beam 1210 are respectively connected to the two front compartment battery pack mounting parts 5000. The dash lower cross beam 1210 is a cross beam connected to the lower end of the dash panel 1200 on the vehicle. By connecting the dash lower cross beam 1210 to the two front compartment battery pack mounting parts 5000 as a whole, on the one hand, a force transmission path extending along the left and right directions of the vehicle body can be formed through the two front compartment battery pack mounting parts 5000 and the dash lower cross beam 1210, thereby increasing the force transmission area and transmitting the collision force when the vehicle is hit sideways; on the other hand, the reliability of the battery pack 4000 installation and the overall rigidity of the vehicle body can be improved, which is also conducive to the transmission and dispersion of the collision force in the front and rear directions. By increasing the rigidity of the front side of this force transmission plane, the forward impact can be effectively resisted, and the collision performance of the vehicle can be improved.

[0218] like Figure 3 As shown, the lower cross beam 1210 of the front enclosure 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 the battery pack 4000. That is, in the present disclosure, in addition to setting the battery pack 4000 mounting points on the above-mentioned battery pack mounting parts and / or the threshold beam 2100, mounting points (i.e.) can also be set on the lower cross beam to install the battery pack 4000, so that the reliability of the installation of the battery pack 4000 can be further improved, and at the same time, the integration effect of the battery pack 4000, the battery pack mounting parts, the threshold beam 2100, and the lower cross beam 1210 of the front enclosure can be improved, and the rigidity and force transmission effect of the vehicle body can be further improved.

[0219] In addition, such a design can make the connection between the lower cross beam 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 cross beam, thereby increasing the force transmission path.

[0220] Optionally, the lower beam battery pack mounting surface may be located at the same level as the mounting surface on the mounting portion of the battery pack 4000. Figures 3 to 28 , the mounting surface of the lower cross beam battery pack 4 and the mounting surface of the battery pack can be located on the same horizontal plane.

[0221] Such a design can make the above-mentioned lower cross beam 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 can be 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 can be better integrated with the vehicle body, that is, the battery pack 4000 is better integrated with the vehicle body.

[0222] In the present disclosure, as shown in the figure, the vehicle includes two A-pillars 2300 arranged at intervals in the width direction of the vehicle, and the front cabin battery pack mounting member 5000 is connected to the corresponding A-pillars 2300. That is, the front cabin 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 cabin 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 connecting with 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 sill beam 2100, and the front cabin battery pack mounting member 5000 can be better integrated together, thereby improving the reliability of the installation of the battery pack 4000 and the overall rigidity of the vehicle.

[0223] Among them, when the front cabin battery pack mounting component 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 component 5000 itself is an integrated component, it can better connect the force transmission of the above-mentioned components, 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 component 5000 have better integrity and better rigidity.

[0224] 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 such a 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 improve the rigidity of the front side of the vehicle, suppress deformation of the vehicle during driving, improve the driving experience, and enhance the safety of the vehicle.

[0225] Furthermore, when a collision occurs, since the battery pack 4000, A-pillar 2300, door sill beam 2100, and front compartment battery pack mounting 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 frontal 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 rolling moment of the front longitudinal beam 1100 during the collision can be effectively suppressed, thereby preventing damage to the passenger compartment and also preventing damage to the battery pack 4000 after the components are flipped over.

[0226] As shown in the figure, the projection of the front compartment battery pack mounting component 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 component 5000 and the A-pillar 2300 and the transmission of collision force.

[0227] Among them, the front compartment battery pack mounting part 5000 and the corresponding A-pillar 2300 can be directly connected or indirectly connected, and the present disclosure does not limit this.

[0228] In the present disclosure, the front panel lower cross beam 1210 can be integrally formed, so that the battery pack mounting parts and the front panel lower cross beam 1210 are both integrally formed parts, which can reduce the connection seams and prevent the connection from being broken when subjected to force. Moreover, these integrally formed parts can better enhance the rigidity after being connected to the battery pack 4000.

[0229] In the present disclosure, as shown in the figure, the vehicle further includes a front upper cross beam 1220, and the two ends of the front upper cross beam 1220 are connected to two A-pillars 2300, that is, the left end of the front upper cross beam 1220 is connected to the A-pillar 2300 located on the left side of the vehicle, and the right end of the front upper cross beam 1220 is connected to the A-pillar 2300 located on the right side of the vehicle. By setting the front upper cross beam 1220 to connect the two A-pillars 2300 as one, the rigidity of the front side of the vehicle body can be improved, especially the rigidity of the upper part of the front side of the vehicle body. In addition, it is also helpful to suppress the torsional moment of the front longitudinal beam 1100 and the battery pack 4000 in the vertical direction due to the front collision.

[0230] As shown in the figure, in the present disclosure, in the height direction of the vehicle, the front enclosure upper cross beam 1220 and the front enclosure lower cross beam 1210 are spaced apart, and 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. 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 body 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.

[0231] As shown in the figure, the vehicle further includes a dash panel 1200, and both ends of the dash panel 1200 can be connected to two A-pillars 2300, that is, the left and right ends of the dash panel 1200 can be connected to the corresponding A-pillars 2300, and the upper and lower ends of the dash panel 1200 can be connected to the upper cross beam of the dash panel 1200 and the lower cross beam of the dash panel 1200, respectively. In other words, the dash panel 1200 can be set in the space defined by the first annular structure L001 (i.e., in the hollow area of ​​the first annular structure). Through the cooperation between the dash panel 1200 and the first annular structure, a surface is formed, which can greatly improve the rigidity of the vehicle body.

[0232] In the present disclosure, the front panel 1200 can be an integrally formed structure to simplify processing and improve rigidity.

[0233] In the present disclosure, the dash panel 1200 and the dash upper cross beam 1220 can be an integrally formed structure, so as to facilitate processing and simplify assembly. At the same time, the integrally formed structure can better improve the rigidity.

[0234] Optionally, a cavity may be formed at the connection portion between the front panel 1200 and the upper cross beam, and the left and right ends of the cavity may be respectively connected to the space between the side panel inner panel 2220 and the side panel outer panel 2210 of the vehicle.

[0235] In the present disclosure, as shown in the figure, the vehicle may further include a central channel 2700, which extends in the front-to-back direction of the vehicle, and is connected to the lower cross beam 1210 of the front enclosure. By connecting the central channel 2700 to the lower cross beam 1210 of the front enclosure, the path for transmitting force between the front and rear of the vehicle can be increased, and the rigidity of the vehicle body can also be improved. In addition, by providing the central channel 2700, the deflection of the lower cross beam 1210 in the vertical direction can be suppressed, because the central channel 2700 is very long in the front-to-back direction, which can achieve this effect.

[0236] In the present disclosure, as shown in the figure, the vehicle further includes a rear enclosure lower cross beam 3210, and both ends of the rear enclosure lower cross beam 3210 are respectively connected to the corresponding rear compartment battery pack mounting members 6000. In this way, the front enclosure lower cross beam 1210, two front compartment battery pack mounting members 5000, two door sill beams 2100, two rear compartment battery pack mounting members 6000 and the rear enclosure lower cross beam 3210 are connected to form an annular structure, that is, a bottom annular structure (which may be referred to as a sixth annular structure).

[0237] The rear enclosure lower cross beam 3210 is a cross beam connected to the lower end of the rear enclosure 3200 on the vehicle. By connecting the two rear compartment battery pack mounting parts 6000 together through the rear enclosure 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 enclosure lower cross beam 3210, which can transmit the collision force when the vehicle has a side collision. On the other hand, the reliability of the installation of the battery pack 4000 and the overall rigidity of the vehicle body can be improved.

[0238] Furthermore, 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.

[0239] Optionally, the rear lower cross beam 3210 can be integrally formed, with good rigidity, which 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 rigidity of the vehicle will be more obvious.

[0240] In the present disclosure, in the vehicle height direction, the rear enclosure lower cross beam 3210 can be spaced apart from the battery pack 4000. In this way, the two rear compartment battery pack mounting members 6000, the battery pack 4000, the rear enclosure upper cross beam 3220 and the rear enclosure lower cross beam 3210 can form a ring structure in the vertical direction, which can improve the rigidity of the vehicle and suppress the deformation of the vehicle.

[0241] 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 integrally formed 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.

[0242] As shown in the figure, in the present disclosure, the vehicle may further include a rear floor crossbeam 2510 (also referred to as a rear floor 2500), on which a rear floor 2500 battery pack 4000 mounting surface is formed, and the rear floor 2500 battery pack 4000 mounting surface is in the same horizontal plane as the door sill beam 2100. By arranging the rear floor crossbeam 2510 to be connected to the battery pack 4000, the number of mounting points of the battery pack 4000 can be increased, the reliability of the battery pack 4000 installation can be improved, and at the same time, it is also beneficial to improve the overall rigidity of the vehicle.

[0243] Such a design can make the rear floor beam 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 can be 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 the battery pack 4000 and the vehicle body are better integrated, that is, the battery pack 4000 and the vehicle body are better integrated.

[0244] In the present disclosure, as shown in the figure, the two ends of the rear floor cross beam 2510 are respectively connected to the corresponding threshold beams 2100, and the rear floor cross beam 2510, the two threshold beams 2100, and the rear lower cross beam 3210 are connected to form a second ring structure. That is, the left end of the rear floor cross beam 2510 can be connected to the threshold beam 2100 located on the left side of the vehicle, and the right end of the rear floor cross beam 2510 can be connected to the threshold beam 2100 located on the right side of the vehicle. By forming the second ring structure, the rigidity of the bottom of the vehicle can be effectively improved, especially the deformation of the bottom of the vehicle body can be suppressed, which plays a protective role on the battery pack 4000 and can improve the reliability and safety of the installation of the battery pack 4000.

[0245] As shown in the figure, in the present disclosure, the vehicle may also include a rear floor middle cross beam 2513, and both ends of the rear floor middle cross beam 2513 are respectively connected to the corresponding door sill beams 2100. By setting the middle cross beam to connect the door sill beam 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.

[0246] In the present disclosure, as shown in the figure, 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.

[0247] Optionally, 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. Between the front enclosure lower cross beam 1210 and the rear enclosure front cross beam, the ring structure between the front enclosure lower cross beam 1210 and the rear enclosure front cross beam can be further strengthened by the rear floor middle cross beam 2513.

[0248] In the present disclosure, in the front-rear direction of the vehicle, the rear floor middle cross beam 2513 is connected to the rear floor cross beam 2510. The two cross beams reinforce each other, and when the rear floor cross beam 2510 and the battery pack 4000 are sealed, the battery pack 4000 is pressed against the middle cross beam, and the two cross beams are close together, which can make the connection more tightly.

[0249] As shown in the figure, in the present disclosure, the vehicle also includes two C-pillars 2400 spaced apart in the width direction of the vehicle, and the two C-pillars 2400 are respectively connected to the corresponding rear compartment battery pack mounting parts 6000. That is, the rear compartment battery pack mounting part 6000 located on the left side of the vehicle can be connected to the C-pillar 2400 located on the left side of the vehicle, and the rear compartment battery pack mounting part 6000 located on the right side of the vehicle can be connected to the C-pillar 2400 located on the right side of the vehicle. By connecting with the C-pillar 2400, the force transmission path of the vehicle can be increased, and at the same time, the C-pillar 2400, the sill beam 2100, and the rear compartment battery pack mounting part 6000 can be better integrated together, thereby improving the reliability of the installation of the battery pack 4000 and the overall rigidity of the vehicle, especially the rigidity of the rear side of the vehicle.

[0250] Among them, when the rear cabin battery pack mounting component 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 component 6000 itself is an integrated component, 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 component 6000 have better integrity and better rigidity.

[0251] As shown in the figure, 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, which is beneficial to the transmission and dispersion of the front-to-rear collision force, and the force transmission is also smoother.

[0252] Among them, the rear compartment battery pack mounting part 6000 and the corresponding C-pillar 2400 can be directly or indirectly connected, and the present disclosure does not limit this.

[0253] As shown in the figure, the vehicle also includes a rear upper cross beam 3220, and the two ends of the rear upper cross beam 3220 are respectively connected to the corresponding C-pillars 2400. The rear upper cross beam 3220, the two C-pillars 2400, the rear lower cross beam 3210 and the two rear compartment battery pack mounting parts 6000 are connected to form a third ring structure L003. That is, the left end of the rear upper cross beam 3220 is connected to the C-pillar 2400 located on the left side of the vehicle, and the right end of the rear upper cross beam 3220 is connected to the C-pillar 2400 located on the right side of the vehicle. By setting the rear upper cross beam 3220 to connect the two C-pillars 2400 as one, the rigidity of the rear side of the vehicle, especially the rigidity of the upper part of the rear side of the vehicle, can be improved.

[0254] 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.

[0255] In the present invention, referring to the attached drawings, in the vertical direction, the vehicle body has two ring structures arranged at intervals in the front and rear directions of the vehicle, namely the first ring structure and the third ring structure. The upper side of the first ring structure and the third ring structure can be connected through the top cover of the vehicle body, and the lower side can be connected through the battery pack 4000 and the sill beam 2100 (there is also a bottom ring structure at the bottom of the vehicle body), forming a very strong frame, which can greatly improve the rigidity of the vehicle.

[0256] In addition, the top cover is provided with a top cover longitudinal beam, which can be integrally formed, and the overall structural strength is very high. Therefore, the upper side components of the vehicle body are strong, and the battery pack 4000 is also strong. When the rear wall lower cross beam 3210, the front wall lower cross beam 1210, the front wall panel 1200, and the battery pack mounting parts are integrally formed, the overall strength of the vehicle is very high, and the strength after the frame is formed is also high, and the rigidity can meet the requirements.

[0257] 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 ring between the rear panel lower cross beam 3210, the C-pillar 2400, and the rear panel upper cross beam 3220 is filled by the rear panel 3200 before, forming a surface structure with good rigidity.

[0258] In the present disclosure, there may be a cavity between the rear lower cross beam 3210 and the battery pack 4000, and the cavity may be used to ventilate and dissipate heat for the on-board charger.

[0259] In the present disclosure, in order to ensure the installation strength and reliability of the battery pack 4000, as an optional implementation, the battery pack 4000 can be directly connected to multiple battery pack mounting parts (i.e., the front compartment battery pack mounting part 5000 and the rear compartment battery pack mounting part 6000). Direct connection is conducive to improving the connection strength of the connection point and improving the effect of the battery pack 4000 after the battery pack 4000 is combined. In addition, it can also save parts and simplify the structure.

[0260] As shown in the figure, in an embodiment in which the front end of the battery pack 4000 is respectively connected to two front cabin battery pack mounting members 5000 arranged in the width direction of the vehicle, and the rear end of the battery pack 4000 is respectively connected to two rear cabin battery pack mounting members 6000 arranged in the width direction of the vehicle, the front end of the battery pack 4000 can be directly connected to the two front cabin battery pack mounting members 5000, and the rear end of the battery pack 4000 can be directly connected to the two rear cabin battery pack mounting members 6000.

[0261] Similarly, the battery pack 4000 can be directly connected to the vehicle's front lower cross beam 1210, door sill beam 2100, and rear floor middle cross beam 2513, respectively, to increase 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.

[0262] As shown in the figure, in the present disclosure, the rear floor middle cross beam 2513 is connected with two door sill beams 2100 and the rear enclosure lower cross beam 3210 to form a fourth ring structure. By connecting into a ring structure, it is beneficial to improve the strength of the vehicle, especially the structural strength of the bottom of the vehicle body.

[0263] As shown in the figure, in the present disclosure, the rear floor center cross beam 2513 is located in front of the rear compartment battery pack mounting component 6000, so that in the front-to-rear direction 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-to-rear direction of the vehicle, which is beneficial to improving the reliability of the installation of the battery pack 4000.

[0264] As mentioned above, referring to the drawings, 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 be defined as a ring structure.

[0265] In the present disclosure, at least a portion of the upper surface of the battery pack 4000 (such as a portion of the upper surface of the upper cover of the battery pack 4000) is formed as the vehicle floor. Such a design, on the one hand, is conducive 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 increasing the capacity of the battery pack 4000 and increasing the vehicle's endurance. On the other hand, it is conducive to simplifying the vehicle body structure and facilitating lightweighting of the vehicle.

[0266] In order to achieve a 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 a vehicle floor, the vehicle also includes a seal 4100, and the battery pack 4000 is sealedly connected to the installation surface of the battery pack 4000 on the vehicle via the seal 4100, so that the seal 4100 can prevent substances such as air or water outside the vehicle from entering the vehicle (passenger compartment).

[0267] As shown in the figure, in the present disclosure, the rear cross beam of the floor, two door sill beams 2100, two front compartment battery pack mounting parts 5000, the front lower cross beam 1210, and the rear floor cross beam 2510 are connected to form a fifth annular structure, and the fifth annular structure has a hollow area, and the upper surface of the battery pack 4000 covers the hollow area to form the vehicle floor. By forming the fifth annular structure, the rigidity of the bottom of the vehicle can be improved. Connecting the fifth annular structure with the annular structure of the frame structure of the battery pack 4000 can greatly improve the connection strength of the battery pack 4000 and the integration of the vehicle body and the battery pack 4000.

[0268] In the present disclosure, as shown in the figure, the vehicle may further include a front support beam 3640, one end of which is connected to the rear enclosure upper cross beam 3220, and the other end of which is connected to the rear longitudinal beam 3100. By providing the front support beam 3640, a force transmission path in the front-to-back direction can be added to the rear of the vehicle in addition to the rear longitudinal beam 3100, which is beneficial to the transmission and dispersion of the collision force in the front-to-back direction.

[0269] As shown in the figure, the vehicle can also have a rear wheel cover 3700, and 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, that is, the front support beam 3640 can transmit force through the wheel cover, thereby increasing the dispersion effect of the force transmission.

[0270] As shown in the figure, in the height direction of the vehicle, the front support beam 3640 and the rear longitudinal beam 3100 can be arranged at intervals. In this way, in the up and down direction of the vehicle, the vehicle has two interval paths for force transmission, thereby facilitating the transmission of collision forces at different positions of the vehicle.

[0271] As shown in the figure, 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. With such a design, the rear support beam 3650 is utilized, and force is transmitted to the upper force transmission path through the longitudinal beam, which has a better effect.

[0272] As shown in the figure, in the height direction of the vehicle, one end of the rear support beam 3650 is spaced apart from the rear longitudinal beam 3100. In this way, in the up and down 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.

[0273] As shown in the figure, the vehicle also includes a rear wheel cover cross beam 3710, and the two ends of the rear wheel cover cross beam 3710 are respectively connected to the two rear wheel covers 3700 arranged at intervals in the vehicle width direction. In this way, the two rear wheel covers 3700 can be connected as one, and the rigidity of the wheel covers can be improved. At the same time, the rear wheel cover 3700, the two rear longitudinal beams 3100, the rear wheel cover cross beam 3710, and the rear lower cross beam 3210 can be connected to form a frame (i.e., an annular structure), which can improve the rigidity of the vehicle body, especially improve the rigidity of the rear part of the vehicle body. In addition, the rear wheel cover 3700, the two rear longitudinal beams 3100, the rear wheel cover cross beam 3710, the two front support beams 3640, and the rear upper cross beam 3220 can also be connected to the frame, which can further improve the rigidity of the vehicle body.

[0274] As shown in the figure, the vehicle may further include a first reinforcing beam 3610, which is connected to the front support beam 3640 and the wheel housing, respectively. In this way, the front support beam 3640, the rear wheel housing 3700, the rear wheel housing cross beam 3710, and the first reinforcing beam may be connected to form a frame structure, which may strengthen the ring structure formed by the rear enclosure of the vehicle, improve the rigidity of the rear enclosure ring structure, and also improve the rigidity of the entire vehicle body.

[0275] As shown in the figure, in the present disclosure, the vehicle 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 may 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 may 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.

[0276] Optionally, as shown in the figure, the second reinforcement beam 3620, the third reinforcement beam 3630 and the front support beam 3640 can form a triangular structure to enhance rigidity.

[0277] As shown in the figure, in the present disclosure, the vehicle body structure also includes a first cross beam 1230, and the two ends (left and right ends) of the first cross beam 1230 are respectively connected to the two front compartment battery pack mounting parts 5000, so that the two front compartment battery pack mounting parts 5000 can be further connected as a whole to improve the rigidity of the front side of the vehicle and increase the force transmission path. Referring to the attached figure, the first cross beam 1230, the two front compartment battery pack mounting parts 5000, and the front enclosure lower cross beam 1210 can be connected to form a ring structure.

[0278] Optionally, the first crossbeam 1230 may be a profile structure.

[0279] As shown in the figure, in the present disclosure, a first mounting portion is provided on the front compartment battery pack mounting member 5000, and the first mounting portion is suitable for connecting to the front portion of the battery pack 4000, and a second mounting portion is provided on the rear compartment battery pack mounting member 6000, and the second mounting portion is suitable for connecting to the rear portion of the battery pack 4000.

[0280] As shown in the figure, 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, and the first mounting surface is provided with a first mounting hole, and the first mounting hole is suitable for cooperating with a fastener (such as a bolt) to install the battery pack front cross beam 4300 of the battery pack 4000. The second mounting surface is provided with a second mounting hole, and the second mounting hole is suitable for cooperating with a fastener (such as a bolt) to install the battery pack rear cross beam 4400 of the battery pack 4000.

[0281] In the present disclosure, as shown in the figure, the sill beam 2100 includes a main body beam and a sill reinforcement beam 2130 located inside the main body beam. The sill beam 2100 also includes a sill inner panel 2110 and a sill outer panel 2120 . The sill inner panel 2110 and the sill outer panel 2120 enclose the main body beam.

[0282] The side inner panel 2220 of the vehicle is integrally formed with the rocker inner panel 2110, which is equivalent to the lower portion of the side inner panel 2220 corresponding to the rocker reinforcement beam 2130 being configured as the rocker inner panel 2110. The side outer panel 2210 of the vehicle is integrally formed with the rocker outer panel 2120, which is equivalent to the lower portion of the side outer panel 2210 corresponding to the rocker reinforcement beam 2130 being configured as the rocker outer panel 2120.

[0283] As shown in the figure, the first casting is also provided with a third mounting portion and a fourth mounting portion, the third mounting portion abuts against the side of the side panel inner panel 2220 (the threshold inner panel 2110) facing the passenger compartment, and the fourth mounting portion is connected to the side panel inner panel 2220 and the threshold reinforcement beam 2130 through a first fastener, wherein the threshold reinforcement beam 2130 is located in a cavity enclosed by the side panel inner panel 2220 and the side panel outer panel 2210.

[0284] As shown in the figure, the vehicle also includes a side panel inner 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, the side panel inner panel 2220 and the side panel inner panel reinforcement block 2222 in sequence, and is fixed to the rocker reinforcement beam 2130.

[0285] As shown in the drawings, the third mounting portion extends in the width direction of the vehicle body frame, and the fourth mounting portion extends in the length direction of the vehicle body frame.

[0286] The C-pillar 2400 of the vehicle may include a C-pillar inner pillar 2420 and a C-pillar outer pillar 2430. The C-pillar inner pillar 2420 is connected to the door sill reinforcement beam 2130 and both are located in the cavity enclosed by the side panel inner plate 2220 and the side panel outer plate 2210. The rear compartment battery pack mounting part 6000 is also provided with a fifth mounting portion, which abuts against the rear end of the side panel inner plate 2220 and is connected to the C-pillar inner pillar 2420 via a second fastener; the C-pillar outer pillar 2430 is connected to the side panel inner plate 2220 and the C-pillar inner pillar 2420 via a third fastener.

[0287] As shown in the drawings, the fifth mounting portion may extend in the vehicle width direction.

[0288] As shown in the figure, the lower cross beam of the front panel 1200 is suitable for connecting with the front cross beam 4300 of the battery pack.

[0289] In the length direction of the vehicle, the lower cross beam of the front panel 1200 is configured to have a first overlapping area with the front cross beam 4300 of the battery pack, and the lower cross beam of the rear panel 3200 is suitable for connecting with the rear cross beam 4400 of the battery pack. In the length direction of the vehicle, the lower cross beam of the rear panel 3200 is configured to have a second overlapping area with the rear cross beam 4400 of the battery pack. Optionally, the length of the first overlapping area in the length direction of the vehicle body frame is 80-120mm, and the length of the second overlapping area in the length direction of the vehicle body frame is 80-120mm. By setting the above-mentioned first overlapping area and second overlapping area, side protection is formed for the battery pack 4000 as a whole.

[0290] In the present disclosure, as shown in the figure, the vehicle may further include a seat front cross beam 2630, a seat rear cross beam 2620, a floor middle cross beam, and a floor middle cross beam reinforcement beam;

[0291] The middle cross beam of the floor is located behind the rear cross beam 2620 of the seat, and the two ends of the middle cross beam of the floor 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 lower cross beam of the front panel 1200, the front cross beam 2630 of the seat, the rear cross beam 2620 of the seat, the middle cross beam of the floor and the middle cross beam reinforcement beam from front to back.

[0292] In this way, the central channel 2700 covers the above-mentioned multiple transverse beams from front to back. The central channel 2700 strengthens the first ring structure at the front end of the vehicle and the sixth ring structure at the bottom from front to back, forming a "through-type" central channel 2700 structure.

[0293] When the vehicle's seat assembly (not shown in the figure, but can be assembled on the front cross beam 2630 and the rear cross beam 2620 of the seat) is subjected to a Z-direction load (such as high-speed rapid acceleration and deceleration, etc.), the covering structure of the central channel 2700 will minimize the risk of the seat being pulled up. In addition, this "through-type" central channel 2700 structure is conducive to the transmission and dispersion of frontal impact force and side impact force.

[0294] As shown in the figure, the interior of the first crossbeam 1230 is hollow and is provided with reinforcing ribs, and the reinforcing ribs can be flush with the front end upper surface of the central channel 2700.

[0295] As shown in the figure, the front end of the first beam 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. Such an arrangement is convenient for avoiding the routing of vehicles, for example, avoiding the routing of motors.

[0296] 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.

[0297] Optionally, as shown in the figure, the front compartment battery pack mounting member 5000 may be provided with mounting points for mounting the front sub-frame, and the rear compartment battery pack mounting member 6000 may be provided with mounting points for mounting the rear sub-frame.

[0298] For example, referring to the attached drawings, the front compartment battery pack mounting member 5000 is provided with a sixth mounting portion, which is used to mount the front sub-frame, and the rear compartment battery pack mounting member 6000 is also provided with a seventh mounting portion, which is used to mount the rear sub-frame.

[0299] In this invention, the battery pack mounting part is located above and in front of the front end face of the battery pack 4000, and the lower cross beam of the front panel 1200 of the vehicle body frame is located above the front end face of the battery pack 4000, so that the front end of the battery pack 4000 can extend toward the front subframe of the vehicle body frame; the rear battery pack mounting part is located above and behind the rear end face of the battery pack 4000, so that the rear end of the battery pack 4000 can extend toward the rear subframe of the vehicle body frame. Such a design is conducive to increasing the installation space of the battery pack 4000 in the front-to-back direction of the vehicle, increasing the capacity of the battery pack 4000, and improving the endurance of the vehicle.

[0300] Optionally, as shown in the figure, the front cross-beam of the battery pack 4000 is installed below the lower cross beam 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 beam of the front subframe is installed below the front compartment battery pack mounting part 5000, and the rear mounting point 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 of the front cross beam 4300 of the battery pack and the rear mounting point of the front subframe, and the width of L1 can be 30-50mm.

[0301] As shown in the figure, the lower end surface of the lower cross beam 1210 of the front wall is the lowest end profile of the lower cross beam of the front wall panel 1200, and the other profiles of this part are higher than this profile (Z direction). The lower end surface of the front compartment battery pack mounting part 5000 is its lowest end profile, and the other profiles of this part are higher than the profile (Z direction). That is, the front cross beam 4300 of the battery pack can be extended forward without being hindered by the front mounting point of the battery pack 4000.

[0302] The battery pack rear cross beam 4400 is installed below the rear compartment battery pack mounting piece 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 is installed below the battery pack mounting piece, and the rear subframe front mounting point is the front end of the rear subframe assembly 3300; a gap L2 can be set between the rear end face of the battery pack rear cross beam 4400 and the rear front mounting point of the rear subframe, and the width of L2 can be 30-50mm.

[0303] Specifically, the middle of the rear compartment battery pack mounting part 6000 is provided with a rear subframe front mounting point, and the front is provided with a battery pack 4000 rear mounting point, which is located at the bottom end profile of the rear compartment battery mounting part, and the other profiles of the part are higher than the mounting point (Z direction). That is, the battery pack rear cross beam 4400 can be extended backward without being hindered by the mounting point.

[0304] In summary, the battery pack 4000 can be extended in the front and rear directions of the vehicle body without being blocked, and can also be set upward to abut against the sealing plate of the battery pack 4000. The left and right sides can abut against the neutral surface of the side inner plate 2220. That is, the battery pack 4000 can maximize the space utilization under the vehicle body, further increase the number of batteries that can be actually loaded in the battery pack 4000 by increasing the physical volume, and finally achieve the purpose of longer battery life.

[0305] The present invention adopts a "collapse-type" lateral force transmission frame and realizes lateral load distribution.

[0306] As shown in the figure, the vehicle also includes a connecting part, and the front seat beam 2630 and the rear seat beam 2620 can be connected to the side inner panel 2220 through the connecting part, and the ends of the front seat beam 2630 and the rear seat beam 2620 located in the width direction of the vehicle body frame have gaps with the corresponding side inner panel 2220, wherein the connecting part is a collapsible part.

[0307] The above-mentioned gap is set so that the side panels of the vehicle will not directly squeeze the front cross beam 2630 (and its cover plate) and the rear cross beam 2620 of the seat in the Y direction. Instead, a "collapse-type" lateral force transmission frame is formed to achieve the dispersion and absorption of the side load. This "collapse-type" lateral force transmission frame achieves the Y-direction load requirement.

[0308] 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 helps to ensure that the gap between the battery pack 4000 and the vehicle body is minimized, and maximizes the use of the space under the vehicle body for the layout of the battery pack 4000, which is beneficial to improving the endurance.

[0309] As shown in the figure, the side outer panel 2210 and the side inner panel 2220 form a closed cavity, and the lower layer inside the cavity is provided with a threshold 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 threshold beam 2100 through the front diagonal bracing beam of the threshold.

[0310] In the upper part of the battery pack 4000 sealing plate, there are two states of force transmission between the vehicle's side panel and the seat crossbeam. Upper part: The threshold beam 2100 is transmitted through the connecting block and the front diagonal support beam of the threshold, and then transmitted to the seat crossbeam (upper surface) through the seat crossbeam connecting plate. Lower part: A Y-direction gap L4 is set between the threshold beam 2100 (specifically the side panel inner plate 2220) and the seat crossbeam (specifically the side end plate of the seat crossbeam), and the width of L4 can be 5-10mm.

[0311] In summary, the upper part of the vehicle's side panel and the seat crossbeam are directly connected by a connecting block, and the lower part is connected by an L4 gap. 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.

[0312] The present invention adopts a structure in which a seat crossbeam and a side inner panel 2220 overlap in the Y direction, and the door sill is fixed at both the seat crossbeam and the frame of the battery pack 4000 to form a stable frame.

[0313] As shown in the figure, in the present disclosure, optionally, in the vehicle width direction, there is an overlapping area between the ends of the front seat cross member 2630 and the rear seat cross member 2620 and the corresponding inner side panel 2220 (inner sill panel 2110).

[0314] As shown in the figure, the two ends of the seat cross member are closed with cover plates, and there is a Y-direction overlapping area between its end and the inner sill panel 2110. Above this overlapping area, connecting blocks and other reinforcing parts of the side panel assembly 2200 such as diagonal braces are arranged inside the inner side panel 2220. When the seat cross member is subjected to an upward load in the Z direction, the side panel will protect it and prevent it from being pulled up excessively and causing harm to the occupants.

[0315] As shown in the figure, there are multiple Z-direction fixed connections between the assembly formed by the battery pack 4000, the front seat cross member 2630, and the rear seat cross member 2620 and the vehicle body, including between the seat cross member connecting plate and the seat cross member, and between the battery pack longitudinal beam 4500 and the inner side panel 2220 (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 vehicle body-battery integrated framework.

[0316] As shown in the figure, the front battery pack cross member 4300 can be connected to the front cabin battery pack mounting part 5000 and / or the lower cross member of the front panel 1200, and the rear battery pack cross member 4400 can be connected to the rear cabin battery pack mounting part 6000. The left longitudinal beam of the battery pack 4000 and the right longitudinal beam of the battery pack 4000 can be respectively connected to the corresponding sill reinforcement beam 2130.

[0317] As shown in the figure, in the present disclosure, the front seat cross member 2630 and the rear seat cross member 2620 are arranged above the upper cover plate of the battery pack 4000 and are arranged in parallel.

[0318] Taking the front seat cross member 2630 as an example, the left and right ends of the front seat cross member 2630 are arranged in a structure that overlaps and lapped with the battery pack longitudinal beam 4500 in the Y direction, and are fixedly connected by more than two screws. The connection points are located inside the battery pack longitudinal beam 4500 (close to the vehicle interior) and are arranged in parallel with 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 cross member 2630 can be made by an aluminum alloy extrusion process, such as a closed rectangular or square extrusion profile; it can also be made of high-strength steel, such as a channel-shaped or M-shaped; but the shape of its parts is designed as a straight line and arranged along the Y direction to maximize the effect of Y-direction force transmission. The two end faces of the above-mentioned front seat cross member 2630 can be designed with flat cover plates to enclose it into a completely closed part.

[0319] Bottom connection: Both sides of the front crossbeam 2630 of the seat are provided with flanges for connection with the upper cover of the battery pack 4000, which can be connected and fixed by laser welding or gluing. If the front crossbeam 2630 of the seat is in the form of aluminum extrusion, no flange is provided at the gluing welding position; if it is made of high-strength steel, the flange is welded to the upper cover of the battery pack 4000 to ensure the connection strength.

[0320] Middle connection: The front cross beam 2630 of the seat is connected to the battery pack 4000 by screw connection. Optionally, bolts can be set on the front middle cross beam 4600 and the rear middle cross beam 4700 of the battery pack 4000.

[0321] 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 can be assembled with the vehicle body through the Z direction.

[0322] Y direction: As shown in the figure, the clearance between the side end plate and the middle surface of the side inner plate 2220 is matched with L4, the clearance between the side end surface of the left longitudinal beam of the battery pack 4000 and the middle vertical surface of the side inner plate 2220 is matched with L3, and the clearance between the outer end surface and the lower vertical surface of the side inner plate 2220 is matched with L5.

[0323] Z direction: The front cross beam 2630 of the seat and the connecting plate of the seat cross beam are fixed to the upper surface of the front cross beam 2630 of the seat by means of screw connection or the like. The left mounting point on the longitudinal beam 4500 of the battery pack is fixed to the lower side of the threshold beam 2100 (specifically, the lower end surface of the side inner panel 2220) by means of bolts or the like. The battery pack 4000 is sealed with the vehicle body by means of sealing foam.

[0324] During the above assembly process, the tolerances in the Y and Z directions can be absorbed by the seat crossbeam connecting plate. The above sealing foam can be first pasted (assembled) on the upper cover of the battery pack 4000, and then the assembly 6Z is assembled from bottom to top in the Z direction.

[0325] It can be seen from the above-mentioned Z-direction assembly process 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.

[0326] In the present disclosure, a Z-direction flat battery pack 4000 sealing plate structure is adopted to form a sealing solution between the battery pack 4000 and the vehicle body.

[0327] Optionally, as shown in the figure, the vehicle may include a seal 4100, which is disposed at the bottom of the vehicle body frame and is used for sealing contact with the upper cover plate of the battery pack 4000.

[0328] Optionally, the seal 4100 is constructed as an annular flat plate with uniform thickness.

[0329] As shown in the figure, the mounting surface of the battery pack 4000 on the front compartment battery pack mounting part 5000, the lower end surface of the lower cross beam of the front panel 1200, the middle surface of the side panel inner panel 2220 and the lower end surface of the rear floor 2500 are flush in the height direction of the vehicle body frame to jointly construct a mounting surface for installing the seal 4100.

[0330] As shown in the figure, the side inner panel 2220 has a stepped cross-section, and is provided with three transverse (flat) planes from the inside to the outside, including the middle surface of the side inner panel 2220.

[0331] The battery pack 4000 installation surface is a flat surface on the XY plane, which can be parallel to the vehicle XY plane. The lower end surface of the lower cross beam of the front wall 1200, the middle surface of the side wall inner plate 2220, and the lower end surface of the rear floor 2500 are at the same Z-direction height as the battery pack 4000 installation surface; thus forming a flat Z-direction installation surface, under which the battery pack 4000 seal 4100 is arranged and fixed by structural adhesive.

[0332] The sealing member 4100 may be a flat plate part with a thickness of 1-5 mm (in the Z direction), which surrounds the mounting surface and is a U-shaped structure with a hollow interior. The sealing plate and the battery pack 4000 are sealed by sealing foam to prevent the air or water outside the vehicle from entering the vehicle (passenger compartment). The sealing foam may be made of silicone or other sealing materials, but it is a planar structure (parallel to the XY plane).

[0333] In the present disclosure, referring to the figure, the upper cross beam of the front wall panel 1200 forms a closed cavity with the front wall panel 1200, and penetrates the upper and lower parts of the front wall panel 1200, and is connected to the two side wall inner panels 2220 on the left and right. The side wall inner panel 2220 and the side wall outer panel 2210 form a closed cavity at the front end A-pillar 2300 position of the passenger compartment. At this A-pillar 2300 position, a side wall inner panel sealing plate 2221 is also provided in the cavity formed by the side wall inner panel 2220 and the side wall outer panel 2210; and a sill beam 2100 located at the lower part of the cavity. At the lower part of the side wall inner panel 2220, a front cabin battery pack mounting part 5000 is connected.

[0334] As shown in the figure, the rear enclosure upper crossbeam 3220 may include a roof rear crossbeam upper plate 2820 and a rear crossbeam lower plate, which are buckled together to form a closed cavity and penetrate the side enclosures from left to right. The outer side is specifically connected to the rear reinforcement plate of the C-pillar 2400, and the inner side is connected to the side enclosure inner plate 2220. The side enclosure inner plate 2220 and the side enclosure outer plate 2210 form a closed cavity at the rear end C-pillar 2400 position of the passenger compartment. At this C-pillar 2400 position, a C-pillar 2400 rear reinforcement plate is also provided in the cavity, which forms a closed cavity with the side enclosure inner plate 2220. The rear compartment battery pack mounting part 6000 abuts against the side enclosure inner plate 2220 and the rear enclosure 3200 forward. A rear lower cross beam 3210 penetrating from left to right is provided at the rear lower portion of the rear panel 3200 , and the rear lower cross beam 3210 is connected to the side panel inner panel 2220 through the rear compartment battery pack mounting member 6000 .

[0335] In summary, in the present disclosure, by setting up multiple ring structures, for example, the first ring structure L001, the second ring structure, the third ring structure L003, the fourth ring structure, the fifth ring structure L005, the sixth ring structure and the 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 frontal or lateral external forces (such as when the vehicle is hit head-on, sideways or by a side pole), 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 mode 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 vertically arranged with the bottom ring structure (such as the second ring structure and the sixth ring structure) on the battery pack 4000, and the second ring structure, the sixth ring structure and the seventh ring structure of the battery pack 4000 are arranged in parallel, which further protects the battery pack 4000 from the maximum damage caused by the impact.

[0336] Through the above scheme, a frame structure of an integrated body and battery assembly can be obtained, which has good collision force transmission effect of the whole vehicle and maximizes the space utilization of the battery pack 4000.

[0337] 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.

[0338] 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.

[0339] Lightweighting of automobiles is the core technology and important development direction of the automobile industry. It has become the development strategy of the national manufacturing industry. It refers to reducing the weight of the vehicle without reducing the safety, reliability, comfort and cost control of the vehicle, thereby improving the power economy of the vehicle. With the implementation of energy-saving and emission reduction policies, the future development direction of automobiles must be full electrification. However, since the battery energy density is much lower than that of fuel, in order to achieve a range comparable to that of fuel vehicles, the battery weight generally needs to be increased to more than 500kg, accounting for about 20-30% of the vehicle weight. Therefore, the demand for lightweighting of new energy vehicles, especially pure electric vehicles with long range, is more urgent.

[0340] 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. By reducing the weight of the BIW, the purpose of lightweighting the vehicle can be achieved. Usually, the weight reduction of the BIW can be achieved through material replacement, structural optimization, process optimization, etc., such as by using ultra-high-strength steel, hot-formed steel, aluminum alloy, plastic, and reinforced composite materials to achieve the weight reduction of the BIW. Among them, carbon fiber composite materials (CFRP) have the advantages of high specific strength (more than 5 times that of steel), large design freedom, corrosion resistance, and fatigue resistance. Replacing the steel body with it can ultimately achieve a weight reduction of about 40%-50%. However, the current domestic research on carbon fiber composite materials for car bodies mainly focuses on the application of single components, such as hoods, roofs, and other covering parts. There is little in-depth research on the application of carbon fiber composite materials in car body structure assemblies, and mass production is a long way to go.

[0341] As we all know, there is no precedent for the development of new energy sports cars in the industry. First of all, sports cars require ultra-high performance, so new breakthroughs are needed in the body structure to meet higher performance and lighter weight. However, the existing body structure is generally in the form of traditional metal, which is difficult to meet the high performance requirements of sports cars. Secondly, the extreme driving performance of sports cars is relatively common, and if driving comfort needs to be integrated, such as configuring air suspension, it will be a huge challenge.

[0342] 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, especially pure electric models, three-electric systems such as powertrain (battery pack 4000), motor and electronic control are indispensable. At the same time, the volume and performance of these systems have a certain positive correlation; for example, if you want to achieve ultra-high vehicle horsepower or power, you need to arrange more motors, and if you want to achieve ultra-long battery life, you need to arrange more battery pack 4000 modules. All of the above put forward more requirements on the body structure of pure electric sports cars.

[0343] At present, for sports cars, the most direct way is to borrow parts from traditional passenger cars. However, this measure will bring many problems such as vehicle layout, collision safety strategy, configuration distribution, etc.

[0344] The pure electric sports car is a two-door model without the traditional B-pillar structure, which has a great impact on the side impact and top pressure test of the whole vehicle. In order to meet the strict side impact and top pressure requirements, it is necessary to design a new side reinforcement structure without the traditional B-pillar. Therefore, the present disclosure makes the whole vehicle meet the requirements through the design of the body and the connection design with the battery pack 4000.

[0345] 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 cross beam 1230, front enclosure lower cross beam 1210, front enclosure upper cross beam 1220, front enclosure 1200, side enclosure, rear enclosure 3200, rear enclosure lower cross beam 3210, rear longitudinal beam 3100, middle floor cross beam, rear floor cross beam, central channel 2700, seat cross beam, 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 accompanying drawings below.

[0346] A vehicle is provided, including a front cabin frame 1000, a passenger cabin frame 2000, and a rear cabin frame 3000. Connecting castings can be added between the front cabin and the passenger cabin, and between the rear cabin and the passenger cabin. The connecting castings can be used to install battery packs, transfer force and other structures.

[0347] 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.

[0348] 1. Connecting integrated components

[0349] As shown in the figure, in the front-to-back direction of the vehicle, the connection integration part 6000 can be arranged between the rear cabin frame 3000 and the passenger compartment frame 2000, and 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 be an integrally formed part, or a part formed by connecting multiple components. Compared with the traditional solution in which multiple sheet metal parts are spliced ​​(electric welding, welding, screw connection, etc.) to connect the front cabin frame 1000 and the passenger compartment frame 2000, such a design can improve the integration of the connection integration part, thereby simplifying the assembly process.

[0350] In the embodiment where the connection integrated part is formed in one piece, since the splicing of multiple parts will cause the strength of the connection area to present a fault distribution (there are easy failure points and low connection strength), or redundant structures of the overlapped edges will appear (affecting lightweight), the one-piece molding design can effectively avoid the above problems and achieve lightweight and improve the rigidity of the integrated part. At the same time, topological optimization design can also be added to further improve the lightweight design effect and the rationality of the strength of the force transmission path in theory.

[0351] As shown in the figure, in the embodiment of the present disclosure, the connection assembly may be formed with a first mounting surface, and the first mounting surface may be configured as at least a portion of the battery pack mounting surface. By fixing the battery pack to the connection assembly through the first mounting surface, on the one hand, the rigidity of the battery pack mounting point can be improved, and on the other hand, when the rear cabin frame 3000 of the vehicle is impacted, the impact force can be transmitted to the battery pack through the connection assembly, so that the impact can be dispersed through the battery pack, and the large area property of the battery pack is used to improve the rigidity of the vehicle body and reduce the damage to the passenger compartment frame 2000.

[0352] As shown in the figure, in the embodiment of the present disclosure, the passenger compartment frame 2000 may include a threshold beam 2100, and at least part of the bottom surface of the threshold beam may be configured as at least part of the battery pack mounting surface. By forming the battery pack mounting surface on the threshold beam, the connection strength between the battery pack and the vehicle body can be further improved, and the battery pack and the threshold beam are connected as a whole, which can better disperse the impact force from the rear and avoid damage caused by stress concentration.

[0353] As shown in the figure, in an embodiment of the present disclosure, the first mounting surface is flush with at least a portion of the bottom surface of the threshold beam 2100 on a horizontal plane. It should be explained that the "flush" here does not require that the first mounting surface and at least a portion of the bottom surface of the threshold beam are absolutely equal in height direction, but means that the first mounting surface and at least a portion of the bottom surface of the threshold beam are close to the same height to facilitate the installation of the battery pack. With such a 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 threshold beam are flush, it is only necessary to snap the upper connecting surface of the battery pack with the first mounting surface and at least a portion of the bottom surface of the threshold beam, there is no installation interference, and it is helpful to reduce the height of the vehicle body.

[0354] As shown in the figure, in an embodiment of the present disclosure, at least a portion of the first mounting surface may be located on the inner side of the door sill beam 2100 in the vehicle width direction. The "inside" here refers to the side of the door sill beam close to the center axis of the vehicle in the vehicle width direction. With such a design, the integrated component supports the battery pack in the length direction while also supporting the battery pack in the width direction, which can expand the connection area between the battery pack and the vehicle body, thereby improving the installation stability and installation strength of the battery pack and the door sill beam, improving the integration, and improving the integrity of the battery pack and the vehicle body. At the same time, the extension of the battery pack in the width direction can be expanded to increase the volume.

[0355] As shown in the figure, in the embodiment of the present disclosure, the passenger compartment frame 2000 may further include a first connecting plate, which is connected to the sill beam. Both sides of the first connecting plate are connected to the sill beams on both sides, thereby improving the stability of the connection with the vehicle body frame and improving the force transmission effect.

[0356] Furthermore, as shown in the figure, in an embodiment of the present disclosure, a battery pack may also be included, and the battery pack and the first connecting plate may be spaced apart in the vehicle height direction to form a storage space. The storage space may be used to place an on-board charger, and in this case, the battery pack may serve as a base for placing the on-board charger. The on-board charger and the battery pack may be detachably connected. In this case, the sill beams on both sides of the first connecting plate may protect the on-board charger in the storage space.

[0357] As shown in the figure, in an embodiment of the present disclosure, the passenger compartment frame 2000 may also include a second connecting plate 2500217, the second connecting plate 2500 is connected to at least one of the first connecting plate and the threshold beam 2100, and the battery pack, the first connecting plate, the second connecting plate 2500 and the threshold beam can form a storage space. The left and right sides of the storage space are the threshold beam and the side assembly 2200 of the vehicle, the lower side has the battery pack, and the front side has the second connecting plate 2500. The second connecting plate 2500 can also form a floor beam with other components (the floor beam is formed by the first connecting plate, the rear floor cover plate and the front floor beam). These components form a relatively firm 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 of occupants in the passenger compartment.

[0358] As shown in the figure, 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. The lower cross beam is connected to the battery pack to connect the battery pack to the vehicle body.

[0359] As shown in the figure, in an embodiment of the present disclosure, the floor beam, the door sill beam 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.

[0360] As shown in the figure, in the embodiment of the present disclosure, the battery pack, the first connecting plate, the second connecting plate 2500, the door sill beam 2100 and the connection integration 6000 can form a storage space. With such a design, the connection integration can also protect the on-board charger in the storage space at the rear end.

[0361] 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 assembly steps of the vehicle and reduce the difficulty of the assembly process.

[0362] In order to facilitate the maintenance of the equipment in the accommodation space, as shown in the figure, in the example of the present disclosure, the first connecting plate can be provided with an inspection port 2521. When the equipment in the accommodation space needs to be repaired, it can be repaired by simply opening the inspection port from the bottom.

[0363] As shown in the figure, in an embodiment of the present disclosure, two connecting assemblies are arranged at intervals in the vehicle width direction, and the vehicle may also include a rear crossbeam, and the two ends of the rear crossbeam may be connected to the two connecting assemblies respectively. With such a design, on the one hand, the force transmission capacity of the connecting assembly can be improved, that is, in addition to front and rear transmission, force can also be transmitted toward both sides. On the other hand, when the battery pack and the connecting assembly are connected, in addition to being able to improve the rigidity of the passenger compartment, the rear crossbeam can also suppress the vertical flipping of the front longitudinal beam 1100. Specifically, the rear crossbeam is connected to the connecting assembly. When the vehicle is impacted from the rear, the connecting assembly can transmit the impact to the rear crossbeam, and then disperse the impact force to the rear panel 3200 and the like through the rear crossbeam, so as to avoid stress concentration causing damage to the passenger compartment frame 2000. In an embodiment of the present disclosure, the rear crossbeam can be integrally formed.

[0364] As shown in the figure, in the embodiment of the present disclosure, the connection integrated part 6000 may further include a connection part 6100, one end of which may be connected to the rear enclosure cross beam, and the other end may be formed as a rear longitudinal beam connection part 6110. By connecting the rear longitudinal beam 3100 and the rear enclosure cross beam through the connection integrated part, when the rear side of the vehicle is hit, the forward impact force of the rear longitudinal beam may be transmitted to the rear enclosure cross beam through the connection integrated part, and the impact force is further dispersed to the rear enclosure panel 3200 and the like. Specifically, as shown in the figure, the connection part is provided with a receiving part on a side away from the door sill beam of the vehicle, and is connected to the rear enclosure cross beam through the receiving part.

[0365] Furthermore, in order to better transmit force between the rear longitudinal beam and the rear enclosure cross beam in the front-to-back direction, as shown in the figure, in an embodiment of the present disclosure, the projection of the rear enclosure cross beam in the front-to-back direction of the vehicle and the projection of the longitudinal beam connecting portion in the front-to-back direction of the vehicle can at least partially overlap, and the 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 invading the passenger compartment under force. It should be noted that in some other embodiments, the projection of the rear enclosure cross beam in the front-to-back direction of the vehicle and the projection of the rear longitudinal beam connecting portion in the front-to-back direction of the vehicle can completely overlap, and the size of the overlapping portion between the two is not limited in the present disclosure.

[0366] As shown in the figure, in the embodiment of the present disclosure, the upper surface of the connecting integrated part may include a convex plate extending forward from the front end, which is used to overlap the upper surface of the rear enclosure cross beam, and the lower surface of the connecting integrated part is used to align with the lower surface of the rear enclosure cross beam, wherein the convex plate is used to connect with the upper surface of the rear enclosure cross beam, and the front surface of the connecting integrated part is used to connect with the rear surface of the rear enclosure cross beam. The cross section of the rear enclosure cross beam can be configured as a Japanese character, and the connecting integrated part can also be formed with a first reinforcing rib j10 aligned with the first middle rib j12 of the rear enclosure cross beam. Through the above design, the force transmission effect between the connecting integrated part and the rear enclosure cross beam can be improved.

[0367] 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 enclosure 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 enclosure cross beam.

[0368] As shown in the figure, in the embodiment of the present disclosure, the projection of the rear cross beam in the left-right direction of the vehicle and the projection of the rear longitudinal beam connecting portion in the left-right direction of the vehicle can at least partially overlap. Such a design can achieve the effect of transmitting force in the width direction of the vehicle. For example, when the rear longitudinal beam 3100 is impacted in the width direction of the vehicle, the force can be transmitted to the rear cross beam.

[0369] As shown in the figure, in order to ensure ventilation of the above-mentioned accommodation space and avoid heat damage, as shown in the figure, in the embodiment of the present disclosure, the rear enclosure cross beam and the battery pack 4000 are spaced apart in the vehicle height direction, so that a vent connected to the accommodation space is formed between the battery pack and the rear enclosure cross beam. In addition to the ventilation function, the above-mentioned vent can also play a buffering role for the components arranged in the accommodation space. For example, when the front side of the vehicle is hit, the components in the accommodation space can be buffered by the rearward displacement of the vent to reduce the collision damage caused by the impact.

[0370] In order to form the above-mentioned accommodation space and vents, as shown in the figure, in the embodiment of the present disclosure, in the vehicle height direction, the rear wall cross beam can be located on the side of the first connecting plate away from the battery pack.

[0371] In order to form the above-mentioned accommodation space and the vent, as shown in the drawings, 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 height direction of the vehicle.

[0372] In order to connect the rear subframe assembly 3300 with the connection integrated part, as shown in the figure, in the embodiment of the present disclosure, the connection integrated part can be formed with a rear subframe mounting point. With such a design, the rear subframe assembly is mounted on the connection integrated part. When the rear side of the vehicle is hit, the impact force from the rear longitudinal beam can be greatly dispersed to the entire body floor structure through the rear subframe assembly. The rear subframe assembly participates in the force transmission at the bottom of the vehicle, improving the collision safety, torsional stiffness and other performances.

[0373] As shown in the figure, in the embodiment of the present disclosure, in the height direction of the vehicle, the plane where the rear subframe mounting point is located is located above the first mounting surface. With such a design, when the rear subframe assembly is subjected to the impact force from the rear side and moves forward, since it is staggered with the battery pack 4000 in the height direction, the rear subframe assembly can be prevented from directly hitting the battery pack and causing damage to the battery pack. Specifically, when the connection assembly is constructed in a stepped shape as shown in the figure, the force can be directly transmitted to the connection assembly through the step surface on the front side after the rear subframe assembly is subjected to force, and further dispersed through other components that cooperate with the connection assembly. Specifically, in the illustrated embodiment, the connection assembly 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.

[0374] In some embodiments, the rear subframe mounting point can be moved closer to the connection portion for connecting the rear cross beam in the height direction. This design can better transmit force to the rear cross beam and reduce its moment in the vertical direction.

[0375] As shown in the figure, in the embodiment of the present disclosure, in the front-rear direction of the vehicle, the rear subframe mounting point can be located at the rear side of the connection between the battery pack 4000 of the vehicle and the connection integrated component 6000. With such a design, on the one hand, the rear subframe can be formed as the rear limit surface of the battery pack, so that the battery pack can be extended all the way to the subframe, increasing the battery pack capacity; on the other hand, when the rear subframe assembly transmits force forward, the battery pack can also be used as a force transmission path, and a force transmission path is added without directly hitting the battery pack, thereby achieving dispersed force transmission.

[0376] As shown in the figure, in the embodiment of the present disclosure, in the vehicle height direction, the first mounting surface 6001 can be located at the lower side of the rear subframe mounting point, and the rear longitudinal beam connecting portion 6110 can be located at the upper side of the rear subframe mounting point. Such a design can form multiple force transmission paths in the vehicle height direction to reduce the degree of damage to the passenger compartment.

[0377] As shown in the figure, in the embodiment of the present disclosure, the connection assembly may further include a rear longitudinal beam connection portion, and in the front-rear direction of the vehicle, the rear longitudinal beam connection portion may be located at the rear side of the rear subframe mounting point. When the vehicle is subjected to a rear impact force, the rear longitudinal beam is first subjected to the force, and the rear longitudinal beam connection portion is arranged at the rear side, which can form a multi-layer force transmission structure while also allowing the cross-sectional area of ​​the connection assembly to gradually increase from the rear to the front.

[0378] As shown in the figure, in the embodiment of the present disclosure, in the vehicle height direction, the rear longitudinal beam connection portion can be located on the upper side of the plane where the rear subframe mounting point is located. With such a design, when the vehicle is hit from the rear, a double-layer force transmission path can be formed in the front-to-back direction, thereby avoiding stress concentration and reducing damage to the passenger compartment.

[0379] Specifically, as shown in the figure, in an embodiment of the present disclosure, the connecting assembly 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 than the rear end of the third step 1-1, wherein the rear longitudinal beam 3100 and the rear enclosure cross beam are respectively arranged on the third step 1-1 so that in the height direction, the rear enclosure cross beam can be flush with the rear longitudinal beam.

[0380] Specifically, as shown in the figure, in the embodiment of the present disclosure, the rear end of the connection integrated part can form a first opening, and the rear longitudinal beam can extend into and be fixed to the first opening. The cross section of the rear longitudinal beam can be configured as a double-mouth shape, and chamfers are formed at the corners to improve the connection strength and force transmission effect between the two.

[0381] As shown in the figure, in the embodiment of the present disclosure, the passenger compartment frame 2000 may include a threshold beam 2100, and the connecting assembly is connected to the rear end of the threshold beam. By connecting the connecting assembly to the threshold beam, when the vehicle is hit from the rear side, the impact force of the rear longitudinal beam can be transmitted to the threshold beam through the connecting assembly, thereby dispersing the impact force and improving the vehicle's collision safety, torsional stiffness and other performances.

[0382] As shown in the figure, in an embodiment of the present disclosure, the threshold beam may have a first connecting surface and a second connecting surface that intersect each other, and the first connecting surface and the second connecting surface may both be connected to the connecting integrated part. 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 threshold beam, the connecting integrated part and the battery pack can be better connected, and can be reinforced from two angles to make them integrated into a whole, thereby improving the connection stiffness; on the third hand, the rear cross beam, the two connecting integrated parts and the battery pack can form a closed ring here, and this ring is connected to the threshold beam, which can improve the force transmission performance in the front and rear and left and right directions.

[0383] The present disclosure does not limit the first connection surface and the second connection surface. For example, in the illustrated embodiment, the first connection surface may be located at the rear end surface of the door sill beam 2100, and the connection assembly may be directly connected to the first connection surface. By directly connecting the connection assembly to the rear end surface of the door sill beam, the connection assembly is conducive to directly transmitting the rear impact force to the door sill beam, thereby improving the force transmission effect between the two.

[0384] In the illustrated embodiment, the vehicle may further include an intermediate connection member 2430, the second connection surface may be the inner side surface of the door sill beam, and the connection assembly may be connected to the second connection surface via the intermediate connection member 2430. With such a design, the force transmission area between the connection assembly and the door sill beam may be increased, thereby improving the force transmission effect.

[0385] The present disclosure does not limit the structure of the intermediate connector 2430. For example, in the illustrated embodiment, the intermediate connector 2430 may include a third connecting surface and a fourth connecting surface. The third connecting surface may be connected to the second connecting surface, and the fourth connecting surface may be connected to the connecting integrated component. Thus, the connecting integrated component may be connected to the inner side of the threshold beam through the intermediate connector 2430. Specifically, the cross section of the intermediate connector 2430 may be a triangle as shown in the figure. Such a design has a higher use strength due to the stability of the triangle and can improve space utilization compared to a square.

[0386] The present disclosure does not limit the positional relationship between the fourth connection surface and the first connection surface. For example, in the illustrated embodiment, the fourth connection surface and the first connection surface may be parallel or located on the same plane. Such a design can increase the force transmission area in the front-to-back direction, and enable the connection assembly to transmit force to the door sill beam 2100 and the intermediate connection member 2430 at the same time, so as to avoid excessive pressure when only one of them is contacted.

[0387] In order to enable the connection assembly to better transfer the sill beam in the front-rear direction, as shown in the figure, the projection of the sill beam in the front-rear direction of the vehicle and the projection of the connection assembly in the front-rear direction of the vehicle can at least partially overlap.

[0388] Similarly, in order to better transmit force between the connecting assembly and the sill beam in the vehicle width direction, as shown in the figure, 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.

[0389] The present disclosure does not limit the specific structure of the threshold beam 2100. For example, in the embodiment of the present disclosure, the threshold beam may include a body 2100a and a threshold reinforcement beam 2130, wherein a threshold reinforcement beam accommodating space 2101 is provided in the body, and the threshold reinforcement beam is arranged in the threshold reinforcement beam accommodating space 2101. Here, in the embodiment of the present disclosure, the body may be a cavity formed by the side outer panel 2210 and the side inner panel 2220 of the vehicle, wherein the portion of the side outer panel and the side inner panel corresponding to the threshold beam may also be called the threshold beam outer panel and the threshold beam inner panel, the threshold beam outer panel and the side outer panel may be integrally formed, and the threshold beam inner panel and the side inner panel may be integrally formed. Among them, the connection assembly may be connected to both the body and the threshold reinforcement beam, and the intermediate connection member 2430 may be connected to both the body and the threshold reinforcement beam. By connecting the connection assembly to the body 2100a and the threshold reinforcement beam, the connection strength of the connection assembly and the threshold beam may be 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.

[0390] As shown in the figure, in the embodiment of the present disclosure, the vehicle may further include a side reinforcement 2420, at least part of which is disposed in the sill reinforcement beam accommodating space 2101, and the side reinforcement 2420 is connected to the sill reinforcement beam and the body 2100a. Specifically, in the illustrated embodiment, the connection assembly may be connected to the side reinforcement 2420 and the intermediate connection 2430 respectively by fasteners, the side reinforcement 2420 is connected to the sill reinforcement beam, and the side reinforcement 2420 is also connected to the intermediate connection 2430 by fasteners. In this design, the connection strength between the C-pillar 2400 and the sill beam 2100 and the connection assembly may be ensured by arranging the side reinforcement 2420, and the strength of the sill beam and the A-pillar 2300 may be improved.

[0391] As shown in the figure, in the embodiment of the present disclosure, the projection of the sill reinforcement beam 2130 in the vehicle width direction, the projection of the intermediate connecting member 2430 in the vehicle width direction, and the projection of the side reinforcement member 2420 in the vehicle width direction at least partially overlap. With such a design, when the vehicle is hit from both sides, the sill reinforcement beam, the intermediate connecting member 2430, and the side reinforcement member 2420 can better transmit and disperse the impact force from the sides.

[0392] As shown in the figure, in the embodiment of the present disclosure, the side reinforcement 2420 can extend out of the door sill reinforcement beam accommodating space 2101 to be connected with the C-pillar reinforcement plate 2410 of the vehicle. With such a design, the pressure from the roof can be transmitted downward to the side reinforcement 2420 through the C-pillar reinforcement plate, and dispersed through other components connected to the side reinforcement 2420. In addition, when the rear of the vehicle is subjected to impact force, the side reinforcement 2420 can transmit part of the force upward through the C-pillar reinforcement plate 2410 to disperse the impact from the rear. In addition, when the side reinforcement 2420 is hit by the left and right sides of the vehicle, the impact force can also be transmitted to the C-pillar reinforcement plate, so that the impact force can be dispersed to the vehicle passenger compartment frame 2000 through the C-pillar, improving the performance of the vehicle collision safety, torsional rigidity, etc.

[0393] As shown in the figure, in the 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, and the impact force on the rocker beam and the side panel reinforcement 2420 can be transmitted upward through the C-pillar reinforcement plate.

[0394] As shown in the figure, in the implementation of the present disclosure, the connection assembly may further include force transmission ribs, 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.

[0395] Furthermore, in the embodiment of the present disclosure, the projection of the force transmission rib in the front-rear direction of the vehicle can at least partially overlap with the projection of the door sill beam in the front-rear direction of the vehicle. With such a design, the rear impact force can be better transmitted to the door sill beam through the force transmission rib for dispersion.

[0396] As shown in the figure, in the embodiment of the present disclosure, the passenger compartment frame 2000 may further include a seat cross beam, and the projection of the sill beam in the vehicle height direction and the projection of the seat cross beam in the vehicle height direction may at least partially overlap. Such a design can physically prevent the seat cross beam from being pulled up when subjected to an upward pulling load (the sill beam plays a blocking role), thereby ensuring the safety of the passenger compartment.

[0397] As shown in the figure, in the embodiment of the present disclosure, the projection of the threshold beam 2100 in the vehicle width direction overlaps at least partially with the projection of the seat cross beam in the vehicle width direction. With such a design, when the vehicle is impacted from the left and right sides, the threshold beam can partially transfer the impact force to the seat cross beam, and the impact force can be dispersed by the seat cross beam to reduce the damage to the passenger compartment, thereby protecting the safety of passengers.

[0398] As shown in the figure, in an embodiment of the present disclosure, the threshold beam may include a receiving portion 2170, and the receiving portion is used to partially receive the seat cross beam. The receiving portion may be formed by the structure of the threshold beam itself, and the present disclosure does not limit its specific shape, as long as it can at least partially receive the seat cross beam. Specifically, in the illustrated embodiment, the threshold beam may be configured as a step, and may specifically include a first step surface, a second step surface, and a third step surface sequentially arranged in the height direction, a connecting surface is formed between the second step surface and the third step surface, and the receiving portion is formed by the third step surface and the connecting surface, wherein the third step surface overlaps with the seat cross beam in the height direction, and the connecting surface overlaps with the seat cross beam in the width direction.

[0399] As shown in the figure, in the embodiment of the present disclosure, the door sill beam may be provided with a battery pack installation portion 2180, and in the vehicle height direction, the battery pack installation portion may be located at the lower side of the accommodation portion 2170, and in the vehicle width direction, the battery pack installation portion may be located at the outer side of the accommodation portion. In this design, the seat crossbeam is connected to the battery pack, and a battery pack longitudinal beam 4500 is provided in the left and right directions of the battery pack. The battery pack longitudinal beam is connected to the door sill beam battery pack installation portion, and then the seat crossbeam is connected to the battery pack longitudinal beam 4500. Therefore, when the seat crossbeam is connected to the battery pack, the seat crossbeam is still at the lower side of the battery pack, and the seat crossbeam is less likely to move in the vertical direction. In addition, the battery pack longitudinal beam and the door sill beam are spaced apart in the width direction of the vehicle, the seat crossbeam and the door sill beam are spaced apart in both the width direction and the height direction, and the seat crossbeam and the battery pack can be connected by the transverse fixings mentioned below through the connecting plate. When a side collision occurs, the force can be first transmitted to the transverse fixings through the door sill beam, and then transmitted to the seat crossbeam, and the transverse fixings are relatively weak. The seat crossbeam, the battery pack and the door sill beam 2100 are spaced apart in the width direction, so 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.

[0400] As shown in the figure, in the embodiment of the present disclosure, the threshold beam 2100 may also be provided with a battery pack sealing portion. It needs to be explained that the battery pack sealing portion here refers to the position for attaching the seal, which is used to seal and connect with the battery pack, thereby ensuring the sealing of the inside of the battery pack, and preventing rainwater, impurities, etc. from entering the inside of the battery pack through the connection gap between the battery pack and the vehicle body. In the height direction of the vehicle, the battery pack sealing portion may be located between the accommodating portion 2170 and the battery pack mounting portion 2180, and in the width direction of the vehicle, the battery pack sealing portion may be located between the accommodating portion and the battery pack mounting portion. For example, in the embodiment in which the threshold beam is constructed in a stepped shape, the battery pack sealing portion may be formed on the third step surface. While the battery pack and the threshold beam are sealed, the projections of the battery pack and the threshold beam in the vertical direction can also overlap, that is, the extension of the battery pack to the left and right directions is extended, which satisfies the sealing and increases the capacity at the same time.

[0401] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include a transverse fixing member connected between the threshold beam and the seat cross beam. The threshold beam and the seat cross beam may be formed into a whole by the transverse fixing member, so as to facilitate the transmission of the transverse impact force received by the threshold beam to the seat cross beam. The present disclosure does not limit the installation position of the transverse fixing member. For example, in the embodiment shown, the transverse fixing member may be located on the upper side of the seat cross beam.

[0402] As shown in the figure, in an embodiment of the present disclosure, the battery pack 4000 of the vehicle can be at least partially formed as a vehicle body floor. With such a design, the vehicle body floor can be omitted to reduce the vehicle weight. In addition, the gap between the battery pack and the vehicle body can be reduced, the center of gravity of the vehicle can be lowered, the maneuverability can be improved, or the height of the passenger compartment can be increased, or the ground clearance of the vehicle can be increased to improve the vehicle's passability.

[0403] As shown in the figure, in an embodiment of the present disclosure, the upper end of the C-pillar rear reinforcement plate 2412 of the vehicle 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 along the front-rear direction of the vehicle and is connected to the vehicle A-pillar 2300 and C-pillar 2400 for force transmission. With such a design, the rear impact force can be transmitted to the door sill beam and the vehicle frame longitudinal beam 2840 through the C-pillar rear reinforcement plate 2412, thereby increasing the force transmission area and force transmission path.

[0404] Furthermore, in the embodiment of the present disclosure, the upper end of the C-pillar rear reinforcement plate 2412 can be connected to the rear upper cross beam 3220 of the passenger compartment frame 2000. Among them, the rear upper cross beam 3220, the C-pillar rear reinforcement plate 2412, the side reinforcement 2420, the connection integration and the rear cross beam can form a ring structure, which is convenient for the transmission of the battery pack on the one hand, and on the other hand, when the connection integration is connected to the battery pack, the body rigidity can be effectively improved. In addition, the above-mentioned accommodation space for accommodating the on-board charger is formed at this position. Therefore, after the battery pack is connected here, this ring structure will strengthen the accommodation space, and the battery pack is located at the bottom, so a Japanese-shaped structure can be formed at the rear to further enhance the rigidity.

[0405] As shown in the figure, 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 is connected to the vehicle's door sill beam 2100. With such a design, the C-pillar front reinforcement plate 2411, the frame longitudinal beam, the door sill beam, the battery pack 4000 and the vehicle roof can also form a ring structure, thereby enhancing the vehicle body rigidity. The vehicle roof here refers to the roof part, which is connected to the side enclosure assembly on both sides, and the A-pillar 2300 and the C-pillar 2400 are both arranged on the side enclosure assembly.

[0406] 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 .

[0407] As shown in the figure, in the embodiment of the present disclosure, the C-pillar rear reinforcement plate 2412 may be provided with a C-pillar front reinforcement plate 2411 connection portion, and the C-pillar rear reinforcement plate 2412 may be connected to the C-pillar front reinforcement plate 2411 through the C-pillar front reinforcement plate 2411 connection portion, so that the C-pillar front reinforcement plate 2411 and the C-pillar rear reinforcement plate 2412 can transmit force in the front-rear direction. At the same time, the C-pillar front reinforcement plate 2411 connection portion and the sill beam are arranged at intervals in the height direction to form a three-layer force transmission path of the vehicle frame longitudinal beam 2840, the C-pillar front reinforcement plate 2411 connection portion and the sill beam in the vertical direction, so as to achieve a better force transmission effect.

[0408] 2. Battery Pack Mounting Parts

[0409] The battery pack mounting part can be connected to at least one end of the sill beam 2100 along the front-to-back direction, and the battery pack mounting part is formed with a 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, the force transmission capacity in the front-to-back direction can be effectively improved with the support of the battery pack and the sill beam. Among them, the rigidity of the integral part itself is relatively good, 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 also be a part formed by connecting multiple components. It should be noted that the battery pack mounting frame can be connected to the front end of the sill beam, or it can also be connected to the rear end of the sill beam. For the convenience of description, the following will be introduced as an example of its connection to the front end of the sill beam.

[0410] In the embodiments of the present disclosure, the battery pack mounting member may be an integrally formed structure. Such a design can improve the rigidity of the battery pack mounting member itself, thereby improving the effect of its connection with the vehicle body and the battery pack, and effectively improving the torsional performance and integrity of the vehicle.

[0411] As shown in the figure, in an embodiment of the present disclosure, the battery pack mount can be connected to the front end portion of the sill beam 2100 in the front-rear direction. With such a design, the force transmission effect during a frontal collision of the vehicle can be improved, and the stiffness of the front compartment part can be enhanced. Specifically, when the front compartment of the vehicle is impacted, it can transmit the impact force to the sill beam and the battery pack through the battery pack mount, reducing the injury to the occupant compartment. In some embodiments, in order to further improve the force transmission effect between the battery pack mount and the sill beam, the projection of the battery pack mount in the vehicle's front-rear direction and the projection of the sill beam in the vehicle's front-rear direction can at least partially overlap.

[0412] As shown in the figure, 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 mount can be disposed behind the front longitudinal beam, and the front longitudinal beam is connected to the battery pack mount. 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 mount, reducing the injury to the occupant compartment. In some embodiments, in order to improve the force transmission effect between the battery pack mount and the front longitudinal beam, the projection of the front longitudinal beam in the vehicle's front-rear direction and the projection of the battery pack mount in the vehicle's front-rear direction can at least partially overlap.

[0413] The present disclosure does not limit how the front longitudinal beam 1100 is connected to the battery pack mount. For example, in the illustrated embodiment, a protruding beam aligned with the front longitudinal beam can be formed at the front end of the battery pack mount, and the rear end of the front longitudinal beam can be configured to be hollow to sleeved around the outer periphery of the protruding beam and can be fixed by bolts or the like.

[0414] In order to improve the connection strength of the connection position between the front longitudinal beam 1100 and the battery pack mount and prevent the front longitudinal beam from intruding into the occupant compartment under force, as shown in the figure, in an embodiment of the present disclosure, the front end of the battery pack mount can 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.

[0415] As shown in the figure, in some other embodiments, the cross-section of the protruding beam can be configured as a "day" shape, and a second reinforcing rib 1101 corresponding to the second intermediate rib 5101 of the protruding beam can be provided at the portion of the front longitudinal beam 1100 located at the front end of the protruding beam.

[0416] After the front longitudinal beam 1100, the battery pack mount 5000, and the sill beam 2100 are sequentially connected, 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.

[0417] In the embodiment of the present disclosure, at least one of the front longitudinal beam 1100 and the door sill beam can be detachably connected to the battery pack mounting member 5000. In this way, the battery pack mounting member is designed as an independent member, which can facilitate the optimization design of the battery pack mounting member to improve its own strength and rigidity, and this detachable design can simplify the processing and connection process of the vehicle body, and facilitate disassembly and assembly.

[0418] Furthermore, in the embodiment of the present disclosure, the front longitudinal beam is detachably connected to the battery pack mounting member. As mentioned above, such a design can make the assembly process at this position more convenient and simple, and easy to operate. It should be noted that the battery pack mounting member can be connected to the passenger compartment frame 2000 by bonding. Most of the battery pack mounting member is made of metal material, and the part connected to the passenger compartment can be made of carbon fiber material to facilitate bonding.

[0419] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include an A-pillar, and the battery pack mounting part may be connected to the A-pillar. The present disclosure does not limit its connection with the A-pillar, which is preferably directly connected, or may also be indirectly connected. 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, the A-pillar, the door sill beam and the battery pack mounting part may be integrated together, especially the battery pack mounting part 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 that is spread under the vehicle body, and these components are on both sides of the front of the vehicle, this connection form can make use of 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, the vertical rolling moment of the front longitudinal beam during the collision can be effectively suppressed, thereby preventing damage to the passenger compartment and also preventing damage to the battery pack after the components flip over.

[0420] As shown in the figure, in the embodiment of the present disclosure, the projection of the battery pack mounting 5000 in the vehicle width direction at least partially overlaps with the projection of the A-pillar in the vehicle width direction. Such a design is more conducive to the force transmission effect between the two in the width direction.

[0421] As shown in the figure, in the embodiment of the present disclosure, the vehicle may further include a dash panel 1200, and the battery pack mounting member is connected to the dash panel 1200, the A-pillar, and the door sill beam 2100. Since the battery pack mounting member, the battery pack, the door sill beam, and the A-pillar form a hollow ring structure in the vertical direction, with such a design, the dash panel can be added to the hollow part to further improve the rigidity of the structure.

[0422] Furthermore, in some embodiments, the battery pack mounting part is preferably directly connected to the front panel 1200, and the front panel may 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.

[0423] In order to make the force transmission effect of the battery pack mounting part in the front and rear directions better, the force transmission is smoother, and the vertical turning moment is reduced, as shown in the figure, in the embodiment of the present disclosure, the first end of the battery pack mounting part can be connected to the front longitudinal beam 1100 of the vehicle, and the second end of the battery pack mounting part can be connected to the door sill beam. It should be noted that the second end of the battery pack mounting part can also be connected to the battery pack.

[0424] As shown in the figure, in the embodiment of the present disclosure, the cross-sectional area of ​​the battery pack mounting part on the side close to the door sill beam can be larger than the cross-sectional area of ​​the battery pack mounting part on the side close to the front longitudinal beam 1100. With such a design, when the impact force on the front side of the vehicle is diffused backward, the battery pack mounting part can increase the force transmission area to prevent the small force transmission area from causing a large pressure and thus damaging the passenger compartment.

[0425] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include a battery pack, and the battery pack may be directly connected to at least one of the battery pack mounting member and the threshold beam 2100. Direct connection may improve the connection strength of the connection point and improve the effect of the battery pack after the battery pack is installed and the threshold beam is combined. In some embodiments, the battery pack may be directly connected to both the battery pack mounting member and the threshold beam.

[0426] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include a battery pack, 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 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 via the frame crossbeam and frame longitudinal beam. With such a design, the corner position can be protected by the battery pack mounting member.

[0427] As shown in the figure, in the embodiment of the present disclosure, the battery pack may be provided with a battery pack mounting point, and the battery pack may be connected to the battery pack mounting point through the battery pack mounting point, wherein the minimum distance from the battery pack mounting point to the corner is less than the preset distance. Since the battery pack mounting point is generally arranged on the battery pack frame, that is, the left and right frames, adding a connection with the battery pack near the inflection point can make the connection between the battery pack and the vehicle body more rigid.

[0428] For example, the preset distance may be 1 / 4 of the distance from the corner to an adjacent corner in the vehicle width direction.

[0429] For example, the preset distance is 1 / 4 of the maximum distance from the left edge to the right edge of the battery pack.

[0430] As shown in the figure, in an embodiment of the present disclosure, two battery pack mounting parts 5000 may be arranged at intervals in the vehicle width direction, and the vehicle may further include a front lower cross beam 1210, and the two ends of the front lower cross beam are respectively connected to the two battery pack mounting parts. The two ends of the front lower cross beam can be directly connected to the battery pack mounting parts, respectively, and indirectly connected to the door sill beam through the battery pack mounting parts. The battery pack connector is connected to the front longitudinal beam 1100 and the A-pillar front. The front side of the vehicle is mainly transmitted laterally through the two battery pack mounting parts and the front lower cross beam. There are few force transmission parts, and the battery pack mounting part is an integrally formed part. Therefore, there are relatively few front force transmission parts, and thus relatively few connections. When transmitting force, the risk of fracture of the force-bearing connection can be reduced. The two battery pack mounting parts are connected to the A-pillar, and the front lower cross beam is directly connected to the battery pack mounting part, which can transmit force toward the A-pillar through the battery pack mounting part to prevent the deformation of the parts in the front cabin from invading the passenger cabin. In addition, in some other embodiments, the lower cross beam of the front enclosure may also be an integrally formed structure, so as to further reduce the connection points of the front force transmission components.

[0431] As shown in the figure, in some embodiments, the lower cross beam 1210 of the front panel can be connected to the battery pack of the vehicle. In this design, the battery pack is connected to the lower cross beam of the front panel and two battery pack mounting parts respectively. Because these three parts are connected to the A-pillar for force transmission, when the battery pack is connected to the lower cross beam of the front panel and the battery pack mounting parts at the same time, the front cabin part can be connected and integrated into a whole, thereby improving the rigidity of the battery pack and the rigidity of the vehicle body.

[0432] In some embodiments, the front lower cross beam 1210 and the battery pack can be directly connected to further reduce the connection points of the front force transmission member and improve the connection strength. In addition, in some other embodiments, the front lower cross beam and the battery pack can also be indirectly connected, which is not limited by the present disclosure.

[0433] As shown in the figure, in the embodiment of the present disclosure, the bottom surface of the front lower cross beam 1210 may be provided with a cross beam mounting surface 1212, and the battery pack mounting component mounting surface may be provided on the battery pack mounting component 5000, and the cross beam mounting surface 1212 and the battery pack mounting component mounting surface may form a battery pack mounting surface. Such a 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.

[0434] Furthermore, the crossbeam mounting surface 1212 and the battery pack mounting surface can be located at 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 the battery pack is connected on the other hand.

[0435] As shown in the figure, in the embodiment of the present disclosure, the projection of at least one of the front lower cross beam 1210 and the battery pack mounting member in the vehicle height direction at least partially overlaps with the projection of the battery pack in the vehicle height direction. Preferably, the projection of at least one of the front lower cross beam and the battery pack mounting member in the vehicle height direction at least partially overlaps with the projection of the battery cells of the battery pack in the vehicle height direction. With such a design, the battery pack can expand forward to more areas to increase the battery pack capacity.

[0436] As shown in the figure, in the embodiment of the present disclosure, at least part of the bottom surface of the threshold beam 2100 can be formed as a battery pack mounting surface. Such a design can increase the connection area between the battery pack and the vehicle body and improve the connection stability. In addition, it can also allow the battery pack to expand in the left and right directions, thereby increasing the capacity of the battery pack.

[0437] As shown in the figure, in an embodiment of the present disclosure, the projection of the door sill beam in the vehicle height direction and the projection of the battery cells of the vehicle's battery pack in the vehicle height direction can at least partially overlap. On the one hand, the battery pack can be allowed to expand more areas to both sides to increase the battery pack capacity. In addition, by increasing the overlapping area with the door sill beam, the battery pack can be better integrated with the vehicle body in the front and rear directions of the vehicle, thereby improving the body rigidity, and can form a very large force-bearing surface by connecting the battery pack and the door sill beam, which, when connected to the front side component, can suppress the overturning moment in the vertical direction when the front side component is subjected to force.

[0438] As shown in the figure, in the embodiment of the present disclosure, the crossbeam mounting surface 1212, the battery pack mounting surface and at least part of the bottom surface of the door sill beam can be formed as a battery pack mounting surface. With such a design, the battery pack area can be expanded from the front side and the left and right sides, thereby increasing the battery pack capacity.

[0439] As shown in the figure, preferably, the crossbeam mounting surface 1212, the battery pack mounting surface and at least part of the bottom surface of the threshold beam are located at the same horizontal plane. Such a design can make the force transmission effect smoother on the one hand, and on the other hand, will not damage the battery pack when connected to the battery pack.

[0440] In the embodiment of the present disclosure, the battery pack mounting member can be sealed and connected to the lower cross beam 1210 of the front wall. Such a design can achieve front sealing, so as to achieve multiple sealing of the passenger compartment together with the front wall panel 1200.

[0441] As shown in the figure, in some embodiments, the battery pack mounting part may be provided with a front wall lower cross beam connection part 5000a2 / 5000b2 / 5000c2 / 5000d2, and the front wall lower cross beam 1210 may be provided with a second connector connection part 1210a / 1210b / 1210c / 1210d, and the front wall lower cross beam connection part is connected to the second connector connection part 1210a / 1210b / 1210c / 1210d. In order to facilitate sealing, in the vehicle height direction, the second connector connection part 1210a / 1210b / 1210c / 1210d may be located on the upper side of the front wall lower cross beam connection part. Specifically, as shown in the figure, the battery pack mounting component can be provided with a first connection portion 11a2 of the front panel lower cross beam, a second connection portion 11b2 of the front panel lower cross beam, a third connection portion 11c2 of the front panel lower cross beam and a fourth connection portion 11d2 of the front panel lower cross beam, wherein the first surface 15a of the front panel lower cross beam is connected to the first connection portion of the front panel lower cross beam, the second surface 15b of the front panel lower cross beam is connected to the second connection portion 11b2 of the front panel lower cross beam, the third surface 15c of the front panel lower cross beam is connected to the third connection portion 11c2 of the front panel lower cross beam, and the fourth surface 15d of the front panel lower cross beam is connected to the fourth connection portion 11d2 of the front panel lower cross beam to form the two Z-shaped overlapping relationships shown, thereby improving the connection strength.

[0442] As shown in the figure, in the embodiment of the present disclosure, the front enclosure lower cross beam 1210 can be connected to the rear side of the battery pack mounting part. It should be explained that the rear side here does not mean that the front enclosure lower cross beam is completely located on the rear side of the battery pack mounting part as a whole, as long as its connection point with the battery pack mounting part is located on the rear side of the front end force-bearing surface of the battery pack mounting part. With such a design, since the battery pack mounting part is relatively forward, the forward impact force will first be transmitted to the battery pack mounting part, which is a relatively large and relatively solid part, and then transmitted to the front enclosure lower cross beam to be dispersed to both sides, so that the force transmission effect is better.

[0443] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include a first cross beam connected between two battery pack mounting members. The first cross beam may increase the force transmission path of the vehicle in the width direction.

[0444] Preferably, in some embodiments, the length of the first cross beam can be shorter than the length of the lower cross beam 1210. With such a design, since the lower cross beam is located at the lower side of the first cross beam and is used to install the battery pack and can transmit force to the battery pack mounting part, when the lower cross beam is longer, the force bearing area can be increased, and the connection position between the lower cross beam and the battery pack mounting part can be made closer to the connection position between the A-pillar and the battery pack mounting part, thereby reducing the torque between the two mounting positions.

[0445] Preferably, in some embodiments, the first cross beam may be sealingly connected to the battery pack mounting member to achieve front sealing, so as to achieve multiple sealing of the passenger compartment together with the front panel 1200 .

[0446] As shown in the figure, in the embodiment of the present disclosure, in the vehicle height direction, the first cross beam can be located on the upper side of the front wall lower cross beam 1210. With such a design, when the front cabin of the vehicle is subjected to frontal force, the front longitudinal beam 1100 and the front subframe assembly 1300 are located at two different heights, wherein the front longitudinal beam is higher (higher than the front floor surface), the first cross beam is at the same height as the front longitudinal beam, and can transfer the load of the upper layer, and the front wall lower cross beam can be said to be at the same height as the front floor surface, that is, it can be at the same height as the front subframe assembly 1300 to transfer the load of the lower layer.

[0447] As shown in the figure, in the embodiment of the present disclosure, in the front-to-back direction of the vehicle, the first crossbeam can be located in front of the lower crossbeam 1210. With such a design, when the vehicle is hit from the front, the first crossbeam is first subjected to force, and the force is transmitted to the A-pillar through the battery pack mounting parts on both sides, and then the lower crossbeam is subjected to force, and the force is transmitted to the battery pack. To a certain extent, the first crossbeam on the front side can protect the battery pack. In addition, the first crossbeam, the lower crossbeam of the front enclosure and the two battery pack mounting parts can be enclosed to form a square-shaped structure, which can improve the force transmission performance at this position, so as to improve the anti-collision, anti-torsion and other performances of the vehicle.

[0448] Similar to the lower cross beam 1210 of the front enclosure, as shown in the figure, in the embodiment of the present disclosure, the battery pack mounting member may be provided with a first cross beam connection portion (11a1 / 11b1 / 11c1 / 11d1), the first cross beam may be provided with a first connector connection portion (1220a / 1220b / 1220c / 1220d) (14d / 14c / 14a / 14b), and the first cross beam connection portion is connected to the first connector connection portion (1220a / 1220b / 1220c / 1220d). In order to facilitate the sealing connection, the first connector connection portion (1220a / 1220b / 1220c / 1220d) may be located on the upper side of the first cross beam connection portion in the vehicle height direction. Specifically, as shown in the figure, the battery pack mounting component may be provided with a first crossbeam first connection portion 11a1, a first crossbeam second connection portion 11b1, a first crossbeam third connection portion 11c1 and a first crossbeam fourth connection portion 11d1, wherein the first surface 14a of the first crossbeam is connected to the first crossbeam first connection portion 11a1, the second surface 14b of the first crossbeam is connected to the first crossbeam second connection portion 11b1, the third surface 14c of the first crossbeam is connected to the first crossbeam third connection portion 11c1, and the fourth surface 14d of the first crossbeam is connected to the first crossbeam fourth connection portion 11d1, so as to form the Z-shaped lap relationship shown in the figure, thereby improving the connection strength.

[0449] Similar to the above-mentioned lower cross beam 1210 of the front enclosure, as shown in the figure, in an embodiment of the present disclosure, the first cross beam 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 cross beam is completely located on the rear side of the battery pack mounting component as a whole, as long as its connection point with the battery pack mounting component is located on the rear side of the front end force-bearing surface of the battery pack mounting component. With such a 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 cross beam to be dispersed to both sides, so that the force transmission effect is better.

[0450] As shown in the figure, in an embodiment of the present disclosure, the vehicle may further include a central channel 2700, and the central channel 2700 may be connected to the first cross beam to form a force transmission path from the first cross beam to the central channel 2700 in the length direction of the vehicle.

[0451] In order to achieve a better force transmission effect between the first cross beam and the central channel 2700, as shown in the figure, in an embodiment of the present disclosure, the projection of the first cross beam 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.

[0452] Further, as shown in the figure, in an embodiment of the present disclosure, the cross-section of the first crossbeam may be configured in a "day" shape, and the third intermediate rib 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 conducive to the transmission of forces in the front-rear direction.

[0453] As shown in the figure, in an embodiment of the present disclosure, the cross-section of the lower front bulkhead beam 1210 may be configured as a right triangle, and the inclined surface of the lower front bulkhead beam faces rearward and upward. The triangular structure occupies less space to form a space above it for arranging other components.

[0454] As shown in the figure, in an embodiment of the present disclosure, the central channel 2700 may be connected to the lower front bulkhead beam 1210. In order to form a force transmission path between the lower front bulkhead beam and the central channel 2700.

[0455] The present disclosure does not limit the connection manner between the central channel 2700 and the first crossbeam and the lower front bulkhead beam. For example, in an embodiment of the present disclosure, the front bulkhead 1200 may be fixedly connected to the first crossbeam and the lower front bulkhead beam and is located above the first crossbeam and the lower front bulkhead beam, while the central channel 2700 is fixedly connected to the front bulkhead to be indirectly connected to the first crossbeam and the lower front bulkhead beam.

[0456] In order to make the force transmission effect between the lower front bulkhead beam 1210 and the central channel 2700 better in the front-rear direction, as shown in the figure, in an embodiment of the present disclosure, the projection of the lower front bulkhead beam 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.

[0457] As shown in the figure, in an embodiment of the present disclosure, the vehicle may also include a front bulkhead 1200, a rear floor crossbeam, a front seat crossbeam 2630, and a rear seat crossbeam 2620. Among them, the front bulkhead may be connected above the first crossbeam and the lower front bulkhead beam, and the central channel 2700 may be respectively connected to the front bulkhead, the rear floor crossbeam, the front seat crossbeam 2630, and the rear seat crossbeam 2620.

[0458] As shown in the figure, in an embodiment of the present disclosure, front subframe mounting points may be formed on the battery pack mounting member, and the front subframe mounting points are 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 playing a protective role for the passenger compartment.

[0459] 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.

[0460] Preferably, in the embodiment of the present disclosure, the front subframe mounting point can be located in front of the front lower cross beam 1210, so that the front lower cross beam can limit the rearward displacement of the front subframe and prevent it from moving backward and invading the passenger compartment. The distance between the front subframe mounting point and the front lower cross beam in the length direction can be 100mm-150mm.

[0461] As shown in the figure, in an embodiment of the present disclosure, the battery pack mounting part may include a first mounting portion, and the first mounting portion may be directly connected to the A-pillar 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 close to the lower side of the A-pillar overlaps 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.

[0462] Furthermore, as shown in the figure, in the embodiment of the present disclosure, the battery pack mounting member may further include a second mounting portion, and the second mounting portion is connected to the side of the A-pillar facing the passenger compartment of the vehicle. The battery pack mounting member and the A-pillar can be connected in two directions through the first mounting portion and the second mounting portion, which can improve the connection strength between the two and increase the force transmission path in the front-to-back direction and the left-to-right direction.

[0463] As shown in the figure, in an embodiment of the present disclosure, the second mounting portion 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.

[0464] The present disclosure does not limit the specific structure of the threshold beam 2100. For example, in the illustrated embodiment, the threshold beam may include a main body beam and a reinforcement beam located inside the main body beam. It should be explained that the "inside" here refers to the inside and outside in the vehicle width direction. In this case, the second mounting portion may be connected to the threshold reinforcement beam 2130 and located on the side of the threshold reinforcement beam facing the passenger compartment. The strength and force transmission effect of the vehicle threshold beam can be improved by providing the threshold reinforcement beam.

[0465] As shown in the figure, in the embodiment of the present disclosure, the threshold beam may further include: a threshold inner panel 2110 and a threshold outer panel 2120, wherein the threshold inner panel 2110 and the threshold outer panel 2120 are enclosed to form a main body beam 2100a; and a first insert 2201, wherein the first insert 2201 is located between the threshold outer panel 2120 and the threshold inner panel 2110. The second mounting portion is sequentially connected to the threshold inner panel 2110, the first insert 2201 and the reinforcing beam, and the battery pack mounting member is fixedly connected to the reinforcing beam by bolts penetrating the first insert 2201 and the side panel assembly. It should be explained that the side panel assembly here includes the side panel outer panel 2210, the side panel inner panel 2220, the threshold inner panel 2110 and the threshold outer panel 2120, wherein the threshold inner panel 2110 and the side panel inner panel are integrally formed, the threshold 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.

[0466] The present disclosure does not limit the first insert. For example, in the illustrated embodiment, the second insert may be a cavity-reinforced foam or plastic, or other cavity-filled lightweight material. The first insert is an aluminum profile embedded in the second insert 2202, providing mounting threads or through holes for the reinforcing beam and the battery pack mounting parts.

[0467] As shown in the figure, in an embodiment of the present disclosure, the second embedment 2202 may be embedded with a third embedment 2203 and a fourth embedment 2204, the portion where the third embedment and the fourth embedment are located is the A-pillar, and the battery pack mounting part is used to connect to the third embedment in the width direction and to connect to 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.

[0468] As shown in the figure, in the embodiment of the present disclosure, the projection of the reinforcing beam in the vehicle width direction and the projection of the second mounting portion in the vehicle width direction at least partially overlap, so that the two can better transmit force in the vehicle width direction.

[0469] As shown in the figure, in an embodiment of the present disclosure, the rocker inner panel 2110 may be configured as a bent plate and have 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.

[0470] The position of the battery pack mounting member for overlapping with the side wall inner panel may be configured in an L-shape so as to overlap with the rocker inner panel 2110 in the width direction and the length direction respectively.

[0471] As shown in the figure, in the embodiment of the present disclosure, the bottom surface of the second mounting portion and the mounting surface of the door sill beam 2100 can be located at the same horizontal plane. Such a design can facilitate sealing and prevent foreign objects from entering the passenger compartment.

[0472] As shown in the figure, in the embodiment of the present disclosure, the battery pack of the vehicle can be sealed and connected to the crossbeam mounting surface 1212, the battery pack mounting surface and at least part of the bottom surface of the threshold beam. Such a design can prevent impurities, moisture, etc. from entering the passenger compartment through the connection gap.

[0473] The present disclosure does not limit how the battery pack is sealed and connected to the cross beam mounting surface 1212, the battery pack mounting surface, and at least a portion of the bottom surface of the door sill beam. For example, in the embodiment shown in the figure, the vehicle may further include a seal 4100, and the battery pack may be sealed and connected to the cross beam mounting surface 1212, the battery pack mounting surface, and at least a portion of the bottom surface of the door sill beam through the seal. The seal may be a sealing plate, a sealing pad, etc.

[0474] Preferably, 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 seal of the battery pack.

[0475] The present disclosure does not limit the structure of the side inner panel. The structure will be introduced below with the embodiment shown in the figure. Specifically, the side inner panel can be constructed to have a first step surface, a second step surface, a third step surface, and a connecting surface connected between the second step surface and the third step surface. The vehicle can also include a front seat beam 2630 and a rear seat beam 2620, wherein the battery pack can be installed on the first step surface, the sealing plate can be connected to the second step surface, and a space for avoiding the front seat beam 2630 and the rear seat beam 2620 can be formed between the third step surface and the connecting surface.

[0476] As shown in the figure, in the embodiment of the present disclosure, the outer surface of the side inner panel may be provided with an inner sill structure 2150, the position of the outer surface of the inner sill structure corresponding to the front cross beam 2630 of the seat may be provided with a first reinforcing profile 2151, and the position corresponding to the rear cross beam 2620 of the seat may be provided with a second reinforcing profile 2152, and the outer surfaces of the first reinforcing profile and the second reinforcing profile are respectively in contact with the sill reinforcing beam 2130. The inner sill structure may be connected to the upper surfaces of the front cross beam 2630 and the rear cross beam 2620 of the seat through a transverse fixing member. The inner sill structure, the first reinforcing profile and the second reinforcing profile may effectively improve the self-strength of the sill beam and the connection strength with the front cross beam 2630 and the rear cross beam 2620 of the seat.

[0477] In the embodiment of the present disclosure, the middle part of the front cross beam 2630 of the seat can be bonded to the battery pack, and the two ends of the front cross beam 2630 of the seat can be screwed to the battery pack respectively. The middle part of the rear cross beam 2620 of the seat can be bonded to the battery pack, and the two ends of the rear cross beam 2620 of the seat can be connected to the battery pack respectively.

[0478] In order to improve the sealing performance of the connection between the battery pack and the vehicle body, as shown in the figure, in the embodiment of the present disclosure, the distance between the installation point of the battery pack and the first step surface and the sealing plate in the width direction is 20mm-30mm, and the battery pack can be compressed and matched with the sealing plate through the battery pack sealing foam 4200. Designing the width distance to be smaller can make the corresponding positions of the battery pack and the sealing plate more tightly pressed to achieve sealing when the battery pack is fixed to the first step surface.

[0479] As shown in the figure, in the embodiment of the present disclosure, the battery pack mounting part may be provided with a third reinforcing rib, and the third reinforcing rib extends from the front longitudinal beam 1100 of the vehicle to the A-pillar. With such a design, on the one hand, the strength of the battery pack mounting part can be improved by the third reinforcing rib, and on the other hand, the battery pack mounting part can also be better able to transmit force in the front-rear direction of the vehicle.

[0480] As shown in the figure, in an embodiment of the present disclosure, a mounting groove may be formed on the battery pack mounting part, and a mounting hole for the steering column to pass through may be formed at the bottom of the mounting groove. During assembly, other components are pasted with sealing foam and the like and extend into the mounting groove, and the sealing foam is squeezed and sealed with the bottom surface of the groove. The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0481] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0482] In addition, 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, characterized in that: include: rear cabin frame; Crew compartment frame; as well as a connecting integrated component, which is arranged between the rear cabin frame and the passenger cabin frame in the front-rear direction of the vehicle and is connected to the rear cabin frame and the passenger cabin frame respectively, Wherein, the connection integrated component is an integrated component.

2. The vehicle according to claim 1, characterized in that The connecting integrated part is formed in one piece.

3. The vehicle according to claim 1, characterized in that The connection assembly is formed with a first mounting surface, and the first mounting surface is configured as at least a portion of a battery pack mounting surface.

4. The vehicle according to claim 3, characterized in that The passenger compartment frame includes a sill beam, and at least a portion of a bottom surface of the sill beam is configured as at least a portion of a battery pack mounting surface.

5. The vehicle according to claim 4, characterized in that The first installation surface is flush with at least a portion of a bottom surface of the door sill beam in a horizontal plane.

6. The vehicle according to claim 4, characterized in that At least a portion of the first mounting surface is located on an inner side of the rocker beam in a vehicle width direction.

7. The vehicle according to claim 4, characterized in that The passenger compartment frame further includes a first connecting plate, wherein the first connecting plate is connected to the sill beam.

8. The vehicle according to claim 7, characterized in that A battery pack is also included, wherein the battery pack and the first connecting plate are spaced apart in the height direction of the vehicle to form a receiving space.

9. The vehicle according to claim 8, characterized in that The accommodating space is suitable for accommodating a vehicle-mounted charger.

10. The vehicle according to claim 8, characterized in that The passenger compartment frame also includes a second connecting plate, which is connected to at least one of the first connecting plate and the threshold beam. The battery pack, the first connecting plate, the second connecting plate and the threshold beam form the accommodating space.

11. The vehicle according to claim 10, characterized in that The first connecting plate and the second connecting plate are integrally formed.

12. The vehicle according to claim 11, characterized in that An inspection port is arranged on the first connecting plate.

13. The vehicle according to claim 10, characterized in that The battery pack, the first connecting plate, the second connecting plate, the door sill beam, and the connecting integrated component form the accommodation space.

14. The vehicle according to claim 1, characterized in that The two connection assemblies are spaced apart in the vehicle width direction. The vehicle further comprises a rear cross beam, and two ends of the rear cross beam are respectively connected to the two connection assemblies.

15. The vehicle according to claim 14, characterized in that The connection assembly also includes a connection portion, one end of which is connected to the rear enclosure cross beam, and the other end of which is formed as a rear longitudinal beam connection portion for connecting to a rear longitudinal beam.

16. The vehicle according to claim 15, characterized in that The projection of the rear enclosure cross beam in the vehicle front-rear direction at least partially overlaps with the projection of the rear longitudinal beam connecting portion in the vehicle front-rear direction.

17. The vehicle according to claim 15, characterized in that The projection of the rear enclosure cross beam in the left-right direction of the vehicle at least partially overlaps with the projection of the rear longitudinal beam connecting portion in the left-right direction of the vehicle.

18. The vehicle according to claim 15, characterized in that The projection of the rear longitudinal beam in the front-rear direction of the vehicle at least partially overlaps with the projection of the rear enclosure cross beam in the front-rear direction of the vehicle.

19. The vehicle according to claim 14, characterized in that The passenger compartment frame also includes a first connecting plate, and the battery pack of the vehicle and the first connecting plate are spaced apart in the vehicle height direction to form a storage space, and the rear enclosure cross beam and the battery pack are spaced apart in the vehicle height direction so that a ventilation hole connected to the storage space is formed between the battery pack and the cross beam.

20. The vehicle of claim 14, wherein: In the vehicle height direction, the rear enclosure cross beam is located on a side of the first connecting plate away from the battery pack.

21. The vehicle according to claim 14, characterized in that In the height direction of the vehicle, the first connecting plate is located on an upper side of the first mounting surface.

22. The vehicle according to any one of claims 3 to 13, characterized in that The connection assembly is formed with a rear subframe mounting point.

23. The vehicle according to claim 22, characterized in that In the vehicle height direction, the plane where the rear subframe mounting point is located is located above the first mounting surface.

24. The vehicle according to claim 22, characterized in that In the front-rear direction of the vehicle, the rear subframe mounting point is located at the rear side of the connection between the battery pack of the vehicle and the connection integration component.

25. The vehicle of claim 22, wherein: The connection assembly also includes a rear longitudinal beam connection portion, which is located at the rear side of the rear sub-frame mounting point in the front-rear direction of the vehicle.

26. The vehicle according to claim 25, characterized in that In the vehicle height direction, the first mounting surface is located at a lower side of the rear sub-frame mounting point, and the rear longitudinal beam connecting portion is located at an upper side of the rear sub-frame mounting point.

27. The vehicle of claim 22, wherein: The connection assembly also includes a rear longitudinal beam connection portion, which is located on the upper side of the plane where the rear sub-frame mounting point is located in the vehicle height direction.

28. The vehicle of claim 1, wherein: The passenger compartment frame includes a sill beam, and the connection integration component is connected to a rear end of the sill beam.

29. The vehicle according to claim 28, characterized in that The door sill beam has a first connection surface and a second connection surface that intersect each other, and both the first connection surface and the second connection surface are connected to the connection integrated component.

30. The vehicle according to claim 29, characterized in that The first connection surface is located at the rear end surface of the door sill beam, and the connection integration component is directly connected to the first connection surface.

31. The vehicle of claim 29, wherein: It also includes an intermediate connecting member, the second connecting surface is the inner side surface of the door sill beam, and the connecting integrated component is connected to the second connecting surface through the intermediate connecting member.

32. The vehicle according to claim 31, characterized in that The intermediate connection component includes a third connection surface and a fourth connection surface, the third connection surface is connected to the second connection surface, and the fourth connection surface is connected to the connection integrated component.

33. The vehicle according to claim 32, characterized in that The fourth connection surface is parallel to the first connection surface or is located on the same plane as the first connection surface.

34. The vehicle of claim 28, wherein: The projection of the rocker beam in the front-rear direction of the vehicle at least partially overlaps with the projection of the connection integration component in the front-rear direction of the vehicle.

35. The vehicle of claim 28, wherein: The projection of the door sill beam in the left-right direction of the vehicle at least partially overlaps with the projection of the connection integration component in the left-right direction of the vehicle.

36. The vehicle of claim 31, wherein: The threshold beam comprises a body and a threshold reinforcement beam, the body is provided with a threshold reinforcement beam accommodation space, and the threshold reinforcement beam is arranged in the threshold reinforcement beam accommodation space; The connecting integrated component is connected to both the main body and the rocker reinforcement beam; and the intermediate connecting component is connected to both the main body and the rocker reinforcement beam.

37. The vehicle according to claim 36, characterized in that It also includes a side panel reinforcement, at least part of which is arranged in the accommodating space of the rocker reinforcement beam, and the side panel reinforcement is connected to the rocker reinforcement beam and the main body.

38. The vehicle according to claim 37, characterized in that A projection of the rocker reinforcement beam in the vehicle width direction, a projection of the intermediate connecting member in the vehicle width direction, and a projection of the side panel reinforcement in the vehicle width direction at least partially overlap.

39. The vehicle of claim 37, wherein: The side panel reinforcement extends out of the rocker reinforcement beam accommodating space to be connected to a C-pillar rear reinforcement plate of the vehicle.

40. The vehicle of claim 39, wherein: In the vehicle height direction, the C-pillar rear reinforcement plate is located on the upper side of the rocker beam.

41. The vehicle of claim 28, wherein: The connection integration component further includes force transmission ribs, which extend along the direction of the rear cabin frame toward the direction of the door sill beam.

42. The vehicle according to claim 41, characterized in that The projection of the force transmission rib in the front-rear direction of the vehicle at least partially overlaps with the projection of the door sill beam in the front-rear direction of the vehicle.

43. The vehicle of claim 28, wherein: The passenger compartment frame further includes a seat cross beam, and a projection of the sill beam in the vehicle height direction at least partially overlaps with a projection of the seat cross beam in the vehicle height direction.

44. The vehicle of claim 41, wherein: A projection of the sill beam in the vehicle width direction at least partially overlaps a projection of the seat cross beam in the vehicle width direction.

45. The vehicle of claim 41, wherein: The sill beam includes a receiving portion for partially receiving the seat cross beam.

46. ​​The vehicle of claim 45, wherein: The sill beam is provided with a battery pack mounting portion, which is located at the lower side of the accommodation portion in the vehicle height direction and at the outer side of the accommodation portion in the vehicle width direction.

47. The vehicle according to claim 46, characterized in that The sill beam is also provided with a battery pack sealing portion, which is located between the accommodating portion and the battery pack mounting portion in the vehicle height direction and between the accommodating portion and the battery pack mounting portion in the vehicle width direction.

48. The vehicle of claim 41, wherein: Also included is a transverse fixing member connected between the rocker beam and the seat cross beam.

49. The vehicle of claim 1, wherein: The battery pack of the vehicle is formed at least in part as a vehicle body floor.

50. The vehicle of claim 1, wherein: The upper end of the C-pillar rear reinforcement plate of the vehicle is connected to the vehicle frame longitudinal beam of the passenger compartment frame.

51. The vehicle of claim 50, wherein: The upper end of the C-pillar rear reinforcement plate is connected to the rear upper cross beam of the passenger compartment frame.

52. The vehicle of claim 50, wherein: It also includes a C-pillar front reinforcement plate, the upper end of the C-pillar front reinforcement plate is connected to the vehicle frame longitudinal beam, and the lower end is connected to the door sill beam of the vehicle.

53. The vehicle according to claim 52, characterized in that The C-pillar front reinforcement plate is arranged on the front side of the C-pillar rear reinforcement plate.

54. The vehicle of claim 52, wherein: The C-pillar rear reinforcement plate is provided with a C-pillar front reinforcement plate connecting portion, and the C-pillar rear reinforcement plate is connected to the C-pillar front reinforcement plate through the C-pillar front reinforcement plate connecting portion.

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