Vehicle body assembly shared by pure electric vehicle and extended-range vehicle, pure electric vehicle and extended-range vehicle

Abstract

The invention relates to the technical field of vehicle body assemblies, and provides a vehicle body assembly shared by a pure electric vehicle and a range-extended vehicle, the pure electric vehicle and the range-extended vehicle, the vehicle body assembly comprises a front seat front cross beam assembly, a left threshold assembly, a right threshold assembly and a front floor threshold assembly; the section of the front seat front beam assembly is of a C-shaped groove structure with a turned edge, the front seat front beam assembly is buckled on the front floor body and welded, and the front end face of the front seat front beam assembly is spliced and welded with the front longitudinal beam upper cover plate, the front baffle and the middle channel connecting plate. The left doorsill assembly and the right doorsill assembly are formed by nesting, pressing and welding doorsill connecting plates and doorsill inner plate bodies; the doorsill connecting plate is of a structure with a flange and is in butt welding with the left side wall assembly or the right side wall assembly; the doorsill inner plate body is a C-shaped groove, and a plurality of holes are formed in the lower surface of the doorsill inner plate body and correspondingly welded with a plurality of battery pack mounting reinforcing plate assemblies; the end faces of the two sides of the front floor threshold assembly are sequentially welded to the left front vertical plate assembly, the right front vertical plate assembly, the left threshold assembly and the right threshold assembly. And range extending and pure electric power systems can be matched at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle body assemblies, and in particular to a vehicle body assembly shared by pure electric vehicles and extended-range vehicles, a pure electric vehicle, and an extended-range vehicle. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] More and more automakers are beginning to develop new energy models such as pure electric, extended-range, hybrid, and hydrogen energy. The development of a variety of new energy technology products can enhance the competitiveness and technical capabilities of enterprises, but at the same time, they are also faced with the difficulties of product diversification, complexity, differentiation, and development cycle brought about by the simultaneous development of multiple technical paths. At the same time, since the mold development and acceptance cycle of large sheet metal is very long, if it cannot be developed in a universal manner, it will bring great challenges to the product development and listing cycle.

[0004] Currently, major OEMs are simultaneously developing pure electric, range-extended and other new energy technologies in new product development, maintaining balanced development of a variety of new energy technologies to provide users with more abundant product choices. However, due to the large differences in the principles and hardware structures of pure electric and range-extended platforms, developing two platforms at the same time requires a lot of time and money, which also poses great challenges to the production line. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a body assembly, a pure electric vehicle and an extended-range vehicle that are shared by pure electric and extended-range vehicles. By improving the front seat front crossbeam assembly, the left door sill assembly, the right door sill assembly, and the front seat front crossbeam assembly of the front floor assembly, the sharing of these components is achieved, and then the sharing of the upper body outer cover can be achieved, so that it can match two different power systems, extended-range and pure electric, at the same time.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a vehicle body assembly shared by pure electric vehicles and extended-range vehicles.

[0008] A vehicle body assembly shared by pure electric vehicles and extended-range vehicles, including a front seat front crossbeam assembly, a left door sill assembly, a right door sill assembly and a front floor door sill assembly;

[0009] The cross section of the front cross beam assembly of the front seat adopts a C-shaped groove with a flange structure, which is fastened to the front floor body and welded, and the front end surface is spliced ​​and welded with the front longitudinal beam upper cover plate, the front baffle plate and the middle channel connecting plate;

[0010] The left sill assembly and the right sill assembly are composed of a sill connecting plate and a sill inner plate body that are nested and pressed together and welded; the sill connecting plate is a flanged structure and is butt-welded with the left side panel assembly or the right side panel assembly; the sill inner plate body is a C-shaped groove, and a plurality of holes are provided on the lower surface to correspond to the welding of a plurality of battery pack installation reinforcement plate assemblies;

[0011] The front floor sill assembly has bent flanges at 90° upward in the Z direction on both sides, and the end faces on both sides are welded to the left front vertical plate assembly, the right front vertical plate assembly, the left sill assembly and the right sill assembly in sequence.

[0012] Further, it also includes a left door sill reinforcement beam assembly and a right door sill reinforcement beam assembly;

[0013] A plurality of threshold connecting plates are evenly distributed on the lower surfaces of the left threshold reinforcement beam assembly and the right threshold reinforcement beam assembly so as to be aligned and welded with the flange of the left threshold assembly or the right threshold assembly.

[0014] Furthermore, the upper surface of the front floor sill assembly is welded with two front longitudinal beam upper covers, a front baffle and a middle channel connecting plate, a front seat front crossbeam assembly, four battery front middle mounting brackets, an airbag ECU mounting plate and a front seat rear crossbeam assembly in sequence from front to rear;

[0015] The front end surface of the front floor sill assembly is overlapped with the lower part of the front baffle body and is riveted and welded, and the rear end surface is overlapped with the rear body of the front floor and is riveted and welded.

[0016] Furthermore, it also includes a left front vertical plate assembly, a right front vertical plate assembly and a front windshield lower crossbeam assembly;

[0017] The lower end surface of the front windshield lower cross beam assembly is welded to the upper part of the front baffle body in the X direction;

[0018] The inner side of the left front vertical plate assembly is welded with the front windshield lower cross beam assembly, the upper part of the front fender body, the lower part of the front fender body and the front fender left support plate assembly in sequence from top to bottom, and the outer side of the left front vertical plate assembly is welded with the left front wheel cover assembly, the left door sill assembly and the left side panel assembly in sequence from top to bottom; the left front vertical plate assembly adopts an inner flange structure on the top surface to perform normal crimping welding with the front windshield lower cross beam assembly in the XZ plane, and adopts an outer flange structure on the side surface to perform positive Y-direction buckling welding with the left side panel assembly;

[0019] The inner side of the right front vertical plate assembly is welded with the front windshield lower cross beam assembly, the upper part of the front fender body, the lower part of the front fender body and the front fender right support plate assembly in sequence from top to bottom, and the outer side of the right front vertical plate assembly is welded with the right front wheel cover assembly, the right door sill assembly and the right side surround assembly in sequence from top to bottom; the right front vertical plate assembly adopts an inner flange structure on the top surface to perform XZ plane normal crimping welding with the front windshield lower cross beam assembly, and adopts an outer flange structure on the side surface to perform positive Y-direction buckling welding with the right side surround assembly.

[0020] Furthermore, the front longitudinal beam upper cover plate adopts a bending V-angle design, and the bending angle is the same as that of the lower part of the front fender body, so as to be welded to the lower part of the front fender body, and the front longitudinal beam upper cover plate is welded to the front floor body at the plane, and an integral structure is formed by welding the front longitudinal beam upper cover plate, the lower part of the front fender body and the front floor body, and the Y-direction welding positions of the front longitudinal beam upper cover plate on both sides are respectively aligned with the Y-direction of the right front longitudinal beam assembly and the left front longitudinal beam assembly.

[0021] Further, it also includes a right sill inner panel rear assembly and a left sill inner panel rear assembly;

[0022] The outer flange of the rear assembly of the right sill inner panel is butt-welded with the inner flange of the right side panel assembly;

[0023] The outer flange of the rear assembly of the left sill inner panel is butt-welded with the inner flange of the left side panel assembly.

[0024] Further, it also includes a rear floor body assembly;

[0025] The front end bending surface of the rear floor body assembly is overlapped and welded with the rear end bending surface of the middle floor assembly, and the two side surfaces are overlapped on the inner flanges of the left rear longitudinal beam assembly and the right rear longitudinal beam assembly respectively and fastened by welding and flow drill screws, and the rear end surface provides support and fixation for the rear floor storage box assembly.

[0026] Furthermore, it also includes a rear left connecting plate of the rear floor, a rear enclosure inner plate assembly and a rear enclosure outer plate assembly;

[0027] The front end face of the left rear connecting plate of the rear floor is folded and overlapped on the left rear longitudinal beam body and connected by welding, the side face is overlapped and fastened on the left rear longitudinal beam body by bolts, and the rear end flange is welded to the rear enclosure inner panel assembly;

[0028] The inner surface of the rear enclosure inner panel assembly is respectively welded to the rear end flanges of the rear floor left rear connection plate, the rear floor rear connection plate, and the rear floor right rear connection plate;

[0029] The upper and lower sides of the rear outer panel assembly are provided with two flange structures, the first flange is used to strengthen the body strength, the second flange is respectively butted and welded with the flanges of the rear inner panel assembly, and the fixed bracket is fixed on the surface of the middle groove after welding to fix the rear bumper assembly;

[0030] The left side of the welded body of the rear enclosure inner panel assembly and the rear enclosure outer panel assembly is clamped between the left rear longitudinal beam assembly and the rear anti-collision beam assembly and fixedly connected by bolts, and the right side is clamped between the right rear longitudinal beam assembly and the rear anti-collision beam assembly and fixedly connected by bolts.

[0031] A second aspect of the present invention provides a pure electric vehicle, which adopts a body assembly shared by a pure electric vehicle and an extended-range vehicle as described in the first aspect.

[0032] A third aspect of the present invention provides an extended-range vehicle, which adopts a vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as described in the first aspect.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention improves the front seat front cross beam assembly, the left door sill assembly, the right door sill assembly, and the front seat front cross beam assembly of the front floor assembly to achieve the sharing of these components, thereby achieving the sharing of the outer covering parts of the upper body, so that it can match two different power systems, namely the extended-range and pure electric systems, at the same time.

[0035] 2. The present invention shares the left front vertical plate assembly and the right front vertical plate assembly, the front windshield lower cross beam assembly of the engine compartment, shares the front seat front cross beam assembly, the front floor sill assembly, the left sill assembly, the right sill assembly, the left sill reinforcement beam assembly, and the right sill reinforcement beam assembly of the front floor assembly, shares the left sill inner plate rear assembly, the right sill inner plate rear assembly, the rear floor body assembly, the rear enclosure inner plate assembly, the rear enclosure outer plate assembly, the rear anti-collision beam assembly, the rear left rear connecting plate of the rear floor assembly, and in summary, shares the left side enclosure assembly, the right side enclosure assembly, and the top cover system of the upper body through the above shared parts of the lower body, and shares the outer covering parts through the above shared parts of the upper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute improper limitations on the present invention.

[0037] Figure 1 A top view of the upper vehicle body assembly of Embodiment 1 of the present invention;

[0038] Figure 2 It is a front view of the upper vehicle body assembly of embodiment 1 of the present invention;

[0039] Figure 3 It is a front view of the left side panel assembly of Example 1 of the present invention;

[0040] Figure 4 It is a left side view of the left side enclosure assembly of Embodiment 1 of the present invention;

[0041] Figure 5 It is a front view of the right side enclosure assembly of Example 1 of the present invention;

[0042] Figure 6 It is a left view of the right side enclosure assembly of Example 1 of the present invention;

[0043] Figure 7It is a front view of the top cover system of Example 1 of the present invention;

[0044] Figure 8 A top view of the top cover system of Example 1 of the present invention;

[0045] Fig. 9 It is a left side view of the engine compartment assembly of embodiment 1 of the present invention;

[0046] Fig.10 It is a front view of the front baffle beam of Example 1 of the present invention;

[0047] Fig.11 A top view of the front baffle beam of Embodiment 1 of the present invention;

[0048] Fig.12 It is a front view of the front anti-collision beam assembly of embodiment 1 of the present invention;

[0049] Fig.13 A top view of a front anti-collision beam assembly according to Embodiment 1 of the present invention;

[0050] Fig.14 It is a front view of the lower anti-collision beam assembly of embodiment 1 of the present invention;

[0051] Fig.15 A top view of a lower anti-collision beam assembly according to Embodiment 1 of the present invention;

[0052] Fig.16 A top view of the engine compartment assembly according to Embodiment 1 of the present invention;

[0053] Fig.17 It is a front view of the right front longitudinal beam assembly of embodiment 1 of the present invention;

[0054] Fig.18 This is a view of the right front longitudinal beam assembly of Embodiment 1 of the present invention;

[0055] Fig.19 It is a front view of the left front longitudinal beam assembly of embodiment 1 of the present invention;

[0056] Fig. 20 This is a view of the left front longitudinal beam assembly of Embodiment 1 of the present invention;

[0057] Fig.21 It is a front view of the right front wheel cover assembly of embodiment 1 of the present invention;

[0058] Fig. 22 It is a top view of the right front wheel cover assembly of embodiment 1 of the present invention;

[0059] Fig.23 It is a front view of the left front wheel cover assembly of embodiment 1 of the present invention;

[0060] Fig.24 A top view of the left front wheel cover assembly of Embodiment 1 of the present invention;

[0061] Fig.25 It is a front view of the front end structure assembly of embodiment 1 of the present invention;

[0062] Fig.26 A top view of the front end structure assembly of Example 1 of the present invention;

[0063] Fig. 27 It is an isometric view of the engine compartment assembly of embodiment 1 of the present invention;

[0064] Fig.28 It is a front view of the upper part of the front baffle body of Example 1 of the present invention;

[0065] Fig.29 A top view of the upper portion of the front baffle body of Embodiment 1 of the present invention;

[0066] Fig.30 It is a front view of the lower part of the front baffle body of Example 1 of the present invention;

[0067] Fig.31 A top view of the lower part of the front baffle body of Embodiment 1 of the present invention;

[0068] Fig.32 It is a front view of the left support plate of the front baffle of Example 1 of the present invention;

[0069] Fig.33 A top view of the left support plate of the front baffle of Example 1 of the present invention;

[0070] Fig.34 It is a front view of the right support plate of the front baffle of Example 1 of the present invention;

[0071] Fig.35 A top view of the right support plate of the front baffle of Example 1 of the present invention;

[0072] Fig.36 It is a front view of the left front vertical plate assembly of embodiment 1 of the present invention;

[0073] Fig.37 It is a top view of the left front vertical plate assembly of embodiment 1 of the present invention;

[0074] Fig.38 It is a front view of the right front vertical plate assembly of embodiment 1 of the present invention;

[0075] Fig.39 It is a top view of the right front vertical plate assembly of embodiment 1 of the present invention;

[0076] Fig.40 It is a front view of the front windshield lower cross beam assembly of Embodiment 1 of the present invention;

[0077] Fig.41 A top view of the front windshield lower cross beam assembly of Embodiment 1 of the present invention;

[0078] Fig.42 A top view of the front floor assembly of Embodiment 1 of the present invention;

[0079] Fig.43 It is a front view of the front floor assembly of Embodiment 1 of the present invention;

[0080] Fig.44 It is a front view of the upper cover plate of the front longitudinal beam of Embodiment 1 of the present invention;

[0081] Fig.45 A top view of the front longitudinal beam upper cover plate of Embodiment 1 of the present invention;

[0082] Fig.46 This is a front view of the front baffle and the middle channel connecting plate of Example 1 of the present invention;

[0083] Fig.47 A top view of the front baffle and the middle channel connecting plate of Example 1 of the present invention;

[0084] Fig.48 It is a front view of the front cross beam assembly of the front seat of embodiment 1 of the present invention;

[0085] Fig.49 A bottom view of a front cross beam assembly of a front seat of embodiment 1 of the present invention;

[0086] Fig.50 A front view of a mounting bracket in the front part of a battery according to Embodiment 1 of the present invention;

[0087] Fig.51 It is a left view of the mounting bracket in the front part of the battery of Example 1 of the present invention;

[0088] Fig.52 It is a front view of the airbag ECU mounting plate of embodiment 1 of the present invention;

[0089] Fig.53 It is a left view of the airbag ECU mounting plate of embodiment 1 of the present invention;

[0090] Fig.54 It is a front view of the rear cross beam assembly of the front seat of embodiment 1 of the present invention;

[0091] Fig.55 A bottom view of the front seat rear cross beam assembly of embodiment 1 of the present invention;

[0092] Fig.56 It is an isometric view of the front floor assembly of Embodiment 1 of the present invention;

[0093] Fig.57 It is a front view of the front floor sill assembly of Embodiment 1 of the present invention;

[0094] Fig.58It is a front view of the front floor and rear body of Example 1 of the present invention;

[0095] Fig.59 Schematic diagram of the left door sill assembly of Embodiment 1 of the present invention;

[0096] Fig.60 Schematic diagram of the right door sill assembly of Embodiment 1 of the present invention;

[0097] Fig.61 This is a schematic diagram of a left door sill reinforcement beam according to Embodiment 1 of the present invention;

[0098] Fig.62 Schematic diagram of a right door sill reinforcement beam according to Embodiment 1 of the present invention;

[0099] Fig.63 It is a front view of the rear floor assembly of embodiment 1 of the present invention;

[0100] Fig.64 It is a front view of the midsole plate assembly of Example 1 of the present invention;

[0101] Fig.65 A bottom view of the midsole plate assembly of Embodiment 1 of the present invention;

[0102] Fig.66 It is a front view of the rear assembly of the right sill inner panel of Embodiment 1 of the present invention;

[0103] Fig.67 It is a top view of the rear assembly of the right sill inner panel of Embodiment 1 of the present invention;

[0104] Fig.68 It is a front view of the rear assembly of the left door sill inner panel of embodiment 1 of the present invention;

[0105] Fig.69 It is a top view of the rear assembly of the left door sill inner panel of embodiment 1 of the present invention;

[0106] Fig.70 Schematic diagram of the left rear longitudinal beam assembly of embodiment 1 of the present invention;

[0107] Fig.71 Schematic diagram of the right rear longitudinal beam assembly of embodiment 1 of the present invention;

[0108] Fig.72 This is a view of the rear floor assembly of Example 1 of the present invention;

[0109] Fig.73 It is a front view of the rear floor body assembly of Example 1 of the present invention;

[0110] Fig.74 It is a top view of the rear floor body assembly of Example 1 of the present invention;

[0111] Fig.75It is a front view of the left rear connecting plate of the rear floor of Example 1 of the present invention;

[0112] Fig.76 It is a top view of the left rear connecting plate of the rear floor of Example 1 of the present invention;

[0113] Fig.77 Schematic diagram of a rear floor storage box assembly according to Embodiment 1 of the present invention;

[0114] Fig.78 It is a front view of the right rear connecting plate of the rear floor of Example 1 of the present invention;

[0115] Fig.79 It is a top view of the right rear connecting plate of the rear floor of Example 1 of the present invention;

[0116] Fig.80 It is a front view of a rear connecting plate of a rear floor according to Embodiment 1 of the present invention;

[0117] Fig.81 A top view of a rear connecting plate of a rear floor panel according to Embodiment 1 of the present invention;

[0118] Fig.82 It is a front view of the rear inner panel assembly of Example 1 of the present invention;

[0119] Fig.83 A top view of a rear inner panel assembly according to Embodiment 1 of the present invention;

[0120] Fig.84 Schematic diagram of the rear outer panel assembly of Example 1 of the present invention;

[0121] Fig.85 Schematic diagram of a rear anti-collision beam assembly according to Embodiment 1 of the present invention;

[0122] Fig.86 It is a front view of the outer covering member of Example 1 of the present invention;

[0123] Fig.87 A top view of an outer covering member of Embodiment 1 of the present invention;

[0124] Fig.88 It is a left side view of the outer covering member of Embodiment 1 of the present invention;

[0125] Fig.89 It is an isometric view of the outer cover of Example 1 of the present invention;

[0126] Fig.90 This is a structural diagram of a pure electric vehicle according to Embodiment 2 of the present invention;

[0127] Fig.91 This is a structural diagram of a range-extended vehicle according to embodiment 2 of the present invention. DETAILED DESCRIPTION

[0128] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0129] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0130] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0131] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0132] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meanings of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0133] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0134] Example 1

[0135] Embodiment 1 of the present invention provides a vehicle body assembly shared by pure electric vehicles and extended-range vehicles.

[0136] While major OEMs are planning a variety of new energy products, they are also exploring shared platforms that can integrate a variety of new energy technology products to adapt to the sharing and platformization of parts and molds for different new energy vehicle models.

[0137] The present embodiment provides a body assembly shared by pure electric and extended-range vehicles. By sharing some parts of the lower body, the upper body of the pure electric (EV) and the extended-range (REEV) can be shared. By differentiating some parts of the engine compartment of the lower body, the differentiated layout of the powertrain of the pure electric and the extended-range can be met. By differentiating some parts of the front floor sill assembly of the lower body, the differentiated layout of the battery, fuel tank, and exhaust pipe of the pure electric and the extended-range can be met. By differentiating some parts of the rear floor assembly of the lower body, the differentiated layout of the powertrain and exhaust after-burner of the pure electric and the extended-range can be met. By sharing the upper body, the outer covering parts can be shared. Thus, two different new energy vehicle models can share the upper body and outer covering parts to achieve the purpose of covering two different new energy vehicle models with a shared body.

[0138] This embodiment provides a body assembly shared by pure electric vehicles and extended-range vehicles, including a lower body assembly, an upper body assembly and an outer covering.

[0139] (2) For the upper body assembly, if Figure 1 and Figure 2 As shown, it includes a left side panel assembly 1, a right side panel assembly 2, and a top cover system 3.

[0140] For pure electric vehicles and extended-range vehicles, the left side panel assembly 1, the right side panel assembly 2, and the top cover system 3 are universal.

[0141] like Figure 3 and Figure 4 As shown, the left side panel assembly 1 is composed of the left side panel inner panel front assembly and the left side panel inner panel rear assembly, which are fastened together at the groove flange of the left side panel outer panel assembly through welding. After the two are fastened together, they are welded in the A, B, and C pillar areas to form a sealed cavity structure. By increasing the cross-sectional area, the overall strength of the A, B, and C pillar areas can be improved.

[0142] The left side panel assembly 1 is connected to the left front vertical panel assembly 16, the left door sill inner panel rear assembly 33, and the left rear longitudinal beam assembly 34 by welding, and the left side panel assembly is welded to the lower body assembly into a whole. Among them, the outer lap joint boundary of the left rear longitudinal beam assembly 34 is the same as that of the left side panel inner panel rear assembly, and the inner boundary is different in height of the welding inner flange of the front longitudinal beam of the main body due to the difference in the Z-direction height of the middle floor assembly 31 at this place where there is a pure electric battery and an extended-range fuel tank installation space.

[0143] The left side panel assembly 1 and the right side panel assembly 2 are in the same process and workstation, and the left and right welding robots are welded synchronously. Among them, the front assembly of the left side panel inner panel has a welded part - the left connecting plate of the front top cross beam, and the rear upper section assembly of the left side panel inner panel has a welded part - the lower connecting plate of the left rear top cross beam, the upper reinforcement plate of the left D-pillar, and the upper connecting plate of the left rear top cross beam.

[0144] like Figure 5 and Figure 6 As shown, the right side enclosure assembly 2 is composed of the right side enclosure inner panel front assembly and the right side enclosure inner panel rear assembly, which are fastened together at the groove flange of the right side enclosure outer panel assembly through welding. After the two are fastened together, they are welded in the A, B, and C pillar areas to form a sealed cavity structure. By increasing the cross-sectional area, the overall strength of the A, B, and C pillar areas can be improved.

[0145] The right side panel assembly 2 is connected to the right front vertical panel assembly 17, the right sill inner panel rear assembly 32, and the right rear longitudinal beam assembly 35 by welding, and the right side panel assembly is welded to the lower body assembly into a whole. Among them, the inner boundary of the right rear longitudinal beam assembly 35 has a difference in the installation space of the pure electric battery and the extended-range fuel tank at the Z-direction height of the middle floor assembly 31, resulting in a difference in the height of the welding inner flange of the front longitudinal beam of the main body.

[0146] The right side panel assembly 2 is in the same process and workstation as the left side panel assembly, and the left and right side welding robots are welded synchronously. Among them, the front assembly of the right side panel inner panel has a welded part - the right connecting plate of the front top cross beam, and the rear upper section assembly of the right side panel inner panel has a welded part - the lower connecting plate of the right rear top cross beam, the upper reinforcement plate of the right D-pillar, and the upper connecting plate of the right rear top cross beam.

[0147] Among them, the outer panels of the right side assembly 2 of the pure electric and extended-range models only differ in the refueling port, and the mold is universal.

[0148] Among them, the rear upper section assembly of the right side inner panel is partially different due to the right side fuel refueling system.

[0149] like Figure 7 and Figure 8 As shown, the roof system 3 includes a front top cross beam inner plate, a front top cross beam assembly, a rear top cross beam assembly and a rear top cross beam inner plate. The front top cross beam inner plate and the front top cross beam assembly are formed into a front welding cavity by crimping welding, and are respectively connected to the left connecting plate of the front top cross beam and the right connecting plate of the front top cross beam by crimping welding at the grooves on both sides. The rear top cross beam assembly and the rear top cross beam inner plate are formed into a rear welding cavity by crimping welding, and are respectively crimped and welded to the welding body composed of the lower connecting plate of the left rear top cross beam, the upper reinforcing plate of the left D-pillar, and the upper connecting plate of the left rear top cross beam, and the welding body composed of the lower connecting plate of the right rear top cross beam, the upper reinforcing plate of the right D-pillar, and the upper connecting plate of the right rear top cross beam on the left and right sides. The left side enclosure assembly and the right side enclosure assembly are connected into a welding body at the top of the vehicle body through the front and rear welding cavities, so that the lower vehicle body and the upper vehicle body form a cage-type vehicle body structure.

[0150] (2) The lower body assembly includes the engine compartment assembly, the front floor assembly, and the rear floor assembly.

[0151] (201) Fig. 9 and Fig.16 and Fig. 27 As shown, the engine compartment assembly includes: a front fender cross beam 4, a front anti-collision beam assembly 5, a lower anti-collision beam assembly 6, a right front longitudinal beam assembly 7, a left front longitudinal beam assembly 8, a right front wheel cover assembly 9, a left front wheel cover assembly 10, a front end structure assembly 11, an upper portion of a front fender body 12, a lower portion of a front fender body 13, a left front fender support plate 14, a right front fender support plate 15, a left front vertical plate assembly 16, a right front vertical plate assembly 17, and a front windshield lower cross beam assembly 18.

[0152] For pure electric and extended-range vehicles, the left front vertical plate assembly 16, the right front vertical plate assembly 17, and the front windshield lower cross beam assembly 18 are universal; however, there are differences in the front fender cross beam 4, the front anti-collision beam assembly 5, the lower anti-collision beam assembly 6, the right front longitudinal beam assembly 7, the left front longitudinal beam assembly 8, the right front wheel cover assembly 9, the left front wheel cover assembly 10, the front end structure assembly 11, the front fender body upper part 12, the front fender body lower part 13, the front fender left support plate 14, and the front fender right support plate 15.

[0153] ①Front baffle crossbeam 4, such as Fig. 9 As shown, it is welded at the lower part of the front baffle (firewall) of the engine compartment and is welded with the left front wheel cover longitudinal beam assembly and the right front wheel cover longitudinal beam assembly to form a welded assembly. The reverse concave structure design can better absorb energy and deformation when a front collision or a small offset collision occurs, such as Fig.10 and Fig.11 As shown, the front fender crossbeam 4 adopts a W-shaped structure to fit closely with the firewall, and the main body adopts a groove structure to increase the strength of the main body. For pure electric and extended-range vehicles, the installation distance and force points of the longitudinal beams are different due to the difference in the Y-direction structural dimensions of the dynamic structure of the extended-range and pure electric vehicles, so the front fender crossbeam 4 is a different part.

[0154] ②Front anti-collision beam assembly 5, such as Fig.12 and Fig.13As shown, the arc-shaped rectangular tube structure can meet the three-dimensional CAS surface of the front bumper shape. The welded reinforcing rib structure inside the rectangular tube can effectively strengthen the structural strength of the main body. Four L-shaped brackets are welded on the upper part to fix the front bumper body. The welded threaded round tube on the left side can be used to fix the trailer hook. Two groups of four rivet bolts are provided at the lower part of both sides to fix the front bumper cross beam installation connection outer plate. After being connected with the lower anti-collision beam assembly 6, an integral structure is formed, which effectively increases the force area of ​​the pedestrian's legs and can improve the pedestrian protection score. Specifically, the front anti-collision beam assembly 5, the lower anti-collision beam assembly 6 and the front bumper cross beam installation connection outer plate are fixed together to form a rigid rectangular plane, which can effectively increase the contact area of ​​the pedestrian's legs and prevent the pedestrian from being rolled under the car. Two rectangular energy absorption boxes are welded on both sides of the arc-shaped rectangular tube. By drilling a number of through holes at the rounded corners around the rectangular tube, it can be bent and weakened to absorb the collision energy when a collision occurs. A square installation end plate is welded on the end face of the rectangular tube. The above welding together constitutes the front anti-collision beam assembly. There are four mounting holes on both sides of the anti-collision beam end plate, which are connected to the right front wheel cover longitudinal beam assembly and the left front wheel cover longitudinal beam assembly respectively, so as to form an integral part with the whole vehicle. Different parts are made because the Y-direction installation distance of the longitudinal beam of the extended-range and pure electric vehicles is different.

[0155] ③ Lower anti-collision beam assembly 6, such as Fig.14 and Fig.15 As shown, the arc-shaped rectangular tube structure can meet the three-dimensional CAS surface of the front bumper shape. Two groups of four rivet bolts are provided on both sides to fix the front bumper crossbeam installation connection outer plate. After being connected with the front anti-collision beam assembly 5, an integral structure is formed to effectively increase the force area of ​​pedestrian legs and improve the pedestrian protection score. Two rectangular energy absorption boxes are welded on both sides of the arc-shaped rectangular tube. By punching a number of through holes at the rounded corners around the rectangular tube, it can be bent and weakened to absorb the collision energy when a collision occurs. A triangular mounting end plate is welded on the end face of the rectangular tube. The above welding together constitutes the lower anti-collision beam assembly. There are three mounting holes on each side of the anti-collision beam end plate, which is connected to the front subframe assembly to form an integral part with the whole vehicle. Due to the difference in the Y-direction installation distance of the longitudinal beams of the extended-range and pure electric vehicles, the lower anti-collision beam assembly 6 is a different part.

[0156] ④Right front longitudinal beam assembly 7, such as Fig.17 and Fig.18As shown, the rectangular tube structure is formed by welding the right front longitudinal beam body and the right front longitudinal beam cover assembly. The opening size of the welded rectangular tube structure in the front end Y direction is larger than the opening size of the rear end. The overall structure is an R-shaped structure. By increasing the opening size of the front end surface in the Y direction, the opening area can be increased, thereby increasing the docking interface area of ​​the front anti-collision beam assembly 5 and the right front longitudinal beam assembly 7 (increasing the cross-section and volume of the energy absorption box), thereby increasing the force-bearing area and improving the energy absorption effect. The upper surface of the front R end surface of the rectangular tube structure provides more welding area in the Y direction for the right front longitudinal beam wheel cover connecting beam assembly I to improve the strength of the welding structure. The right front longitudinal beam wheel cover connecting beam assembly I provides an installation and fixing point for the right fender. The lower surface of the front R end surface of the rectangular tube structure is welded to the lower surface of the right front longitudinal beam wheel cover connecting beam assembly I. The lower surface of the right front longitudinal beam wheel cover connecting beam assembly I is embedded with a welded subframe mounting nut seat M14x1.5x70. The subframe mounting nut seat is connected to the right front mounting hole of the front subframe assembly by bolts. The welded rectangular upper plane is provided to the compressor bracket crossbeam base mounting hole, the high-voltage electric heater bracket mounting hole, the right front wheel cover assembly welding plane and welding points in turn, and the right front longitudinal beam support plate II and the front fender triangular beam right connecting bracket are welded at the root of the rear end face of the rectangular structure; the right front longitudinal beam assembly, including the right front longitudinal beam support plate II and the front fender triangular beam right connecting bracket welded at the root, is in an eight-shaped shape at the root after welding, and can effectively fit with the upper part 12 of the front fender body and the lower part 13 of the front fender body, thereby increasing the force-bearing area to make the force uniform, and improving the structural strength and the transmission path of the collision force; the front subframe right rear mounting reinforcement plate I and the front subframe right rear mounting reinforcement plate II are welded at the root of the rear end face of the rectangular structure, so as to be welded with the front fender crossbeam 4 and the lower part 13 of the front fender body and then welded with the right door sill connecting plate to form the right front longitudinal beam assembly. The right front longitudinal beam assembly 7 is welded with the front fender cross beam 4 through grooves, and four welding and oblique supports are formed with the inclined surface of the lower part 13 of the front fender body, and it is welded with the right door sill connecting plate to form an integral body. This design of buckling and four oblique supports can effectively maintain the strength and rigidity of the longitudinal beam along the X direction. Due to the difference between the right front wheel cover assembly of the extended range and the pure electric vehicle and the change of the collision boundary (X-direction space distance) after replacing the power assembly, the right front longitudinal beam assembly is a different part.

[0157] ⑤Left front longitudinal beam assembly 8, such as Fig.19 and Fig. 20As shown, the rectangular tube structure is formed by welding the left front longitudinal beam body and the left front longitudinal beam cover assembly. The opening size of the welded structure in the front end Y direction is larger than the opening size of the rear end. The overall structure is an R-shaped structure. By increasing the opening size of the front end surface in the Y direction, the opening area can be increased, thereby increasing the docking interface area between the front anti-collision beam assembly 5 and the left front longitudinal beam assembly (increasing the cross-section and volume of the energy absorption box), thereby increasing the force-bearing area and improving the energy absorption effect. The upper surface of the front R end surface of the rectangular structure provides more welding area in the Y direction for the left front longitudinal beam wheel cover connecting beam assembly I to improve the strength of the welding structure. The left front longitudinal beam wheel cover connecting beam assembly I provides an installation and fixing point for the left fender. The lower surface of the front R end surface of the rectangular tube structure is welded to the lower surface of the left front longitudinal beam wheel cover connecting beam assembly I. The lower surface of the left front longitudinal beam wheel cover connecting beam assembly I is embedded with a welded subframe mounting nut seat M14x1.5x70, and the subframe mounting nut seat is connected to the left front mounting hole of the front subframe assembly by bolts. The welded rectangular upper plane is provided to the compressor bracket crossbeam base mounting hole, the electric compressor bracket mounting hole, the left front wheel cover assembly welding plane and welding points in turn, and the left front longitudinal beam support plate II and the left connecting bracket of the front fender triangular beam are welded at the root of the rear end surface of the rectangular structure; the left front longitudinal beam assembly includes the left front longitudinal beam support plate II and the left connecting bracket of the front fender triangular beam welded at the root, which are in an eight-shaped shape at the root after welding, and can effectively fit with the upper part 12 of the front fender body and the lower part 13 of the front fender body, thereby increasing the force-bearing area to make the force uniform, and improving the structural strength and the transmission path of the collision force; the front subframe left rear mounting reinforcement plate I and the front subframe left rear mounting reinforcement plate II are welded at the root of the rear end surface of the rectangular structure, so as to be welded with the front fender crossbeam and the lower part 13 of the front fender body and then connected to the left door sill connecting plate, and welded to form the left front longitudinal beam assembly. The left front longitudinal beam assembly is welded with the front fender cross beam 4 through grooves, and four welding and oblique supports are formed with the inclined surface of the lower part 13 of the front fender body, and the left sill connecting plate is welded to form an integral body. The design of such buckling and four oblique supports can effectively maintain the strength and rigidity of the longitudinal beam along the X direction. Due to the difference between the extended-range and pure electric left front wheel cover assemblies and the change in the collision boundary (X-direction space distance) after replacing the power assembly, the left front longitudinal beam assembly is a different part.

[0158] ⑥Right front wheel cover assembly 9, such as Fig.21 and Fig. 22As shown, it is welded by a right front shock absorber seat, a right front wheel cover side reinforcement beam, a right front wheel cover rear end plate and a right front shock absorber seat reinforcement plate. The right front shock absorber seat is designed with a protrusion and a waist-shaped hole, a large round hole, a special-shaped triangular hole and a mounting bolt structure. Three evenly distributed waist-shaped mounting holes around the large round hole are fixed to the right front air spring assembly by bolts to connect the upper body and the lower body. At the same time, the large round hole in the middle can ensure that when the vehicle passes through a pit or a bump, the right front air spring assembly and the right front wheel cover assembly are prevented from colliding or interfering with each other due to the downward pressure of the upper body or the upward jump of the suspension system, causing abnormal noise and malfunction in the process. The special-shaped triangular hole on the outside of the round hole has the same function as the round hole, which can avoid colliding or interfering with the right upper front control arm assembly and the right upper rear control arm assembly, causing abnormal noise and malfunction in the process. The three round mounting holes of the large round hole interior are connected to the heat pump upper crossbeam assembly by bolts to improve the torsional stiffness of the whole vehicle. The right front wheel cover assembly 9 is welded with the right front longitudinal beam assembly 7, the upper part of the front baffle body 12, and the right vertical plate body of the front cabin to form an inverted U-shaped structure with a lower seal. The difference in the X-direction position of the front cabin steering gear due to the difference in the dynamic total leads to the difference in the suspension system. At the same time, due to the difference in the front wheel load and the weight of the whole vehicle, the right front wheel cover assembly of the extended-range vehicle and the pure electric vehicle is a different part.

[0159] ⑦ Left front wheel cover assembly 10, such as Fig.23 and Fig.24 As shown, it is welded by a left front shock absorber seat, a left front wheel cover side reinforcement beam, a left front wheel cover rear end plate and a left front shock absorber seat reinforcement plate. The left front shock absorber seat is designed with a protrusion and a waist-shaped hole, a large round hole, a special-shaped triangular hole and a mounting bolt structure. Three evenly distributed waist-shaped mounting holes around the large round hole are fixed to the left front air spring assembly by bolts to connect the upper body and the lower body. At the same time, the large round hole in the middle can ensure that when the vehicle passes through a pit or a ridge, the left front air spring assembly and the left front wheel cover assembly are prevented from colliding or interfering with each other due to the downward pressure of the upper body or the upward jump of the suspension system, causing abnormal noise and malfunction in the process. The special-shaped triangular hole on the outside of the round hole has the same function as the round hole, which can avoid colliding or interfering with the left upper front control arm assembly and the left upper rear control arm assembly, causing abnormal noise and malfunction in the process. The three round mounting holes of the large round hole interior are connected to the heat pump upper crossbeam assembly by bolts to improve the torsional stiffness of the whole vehicle. The left front wheel cover assembly is welded with the left front longitudinal beam assembly 8, the upper part of the front fender body 12, and the left vertical plate body of the front cabin to form an inverted U-shaped structure with a lower seal. The difference in the X-direction position of the front cabin steering gear due to the difference in the dynamic total leads to the difference in the suspension system. At the same time, due to the difference in the front wheel load and the weight of the whole vehicle, the left front wheel cover assembly of the extended-range and pure electric vehicles is a different part.

[0160] ⑧Front end structure assembly 11, such as Fig.25 and Fig.26As shown, the outer contour of the plastic frame is U-shaped, the inner contour is V-shaped, the two ends are thin-walled squares with square holes and four mounting bolts, and the front end structure assembly 11 is fixed in series with the front anti-collision beam assembly 5, the left front longitudinal beam assembly 8, and the right front longitudinal beam assembly 7 by bolts in the X direction; the directional hole structure design in the middle of the front end structure assembly 11 can ensure that the front anti-collision beam assembly is effectively connected with the left front longitudinal beam assembly and the right front longitudinal beam assembly; two fixing holes are designed in the middle of the front end structure assembly 11 to fix the middle support so as to be fixedly connected with the middle of the front anti-collision beam assembly to play a supporting role; there are a total of 10 holes on the upper surface of the front end structure assembly 11, four of the six holes in the middle are threaded holes and two are positioning holes, which are used to position and fix the upper grille reinforcement bracket (indirectly fix the front signal light assembly and the front bumper assembly), and the two groups of holes on both sides respectively fix the right front headlight assembly and the left front headlight assembly. The front-end structural assembly is fixed by two groups of eight bolts at both ends and two bolts in the middle to form a triangular fixed structure, which can effectively ensure the installation accuracy and position of the right front headlight assembly, the left front headlight assembly, the front signal light assembly and the front bumper assembly. Due to the difference in the Y-direction spacing of the longitudinal beams, the front-end structural assemblies of the extended-range and pure electric vehicles are different.

[0161] ⑨ The upper part 12 of the front baffle body, such as Fig.28 and Fig.29 As shown, sheet metal stamping is used, and the two sides are bent into an obtuse structure. The body is provided with multiple installation and process holes, from left to right, the battery positive wire harness through the round hole, the process special-shaped weight reduction and reinforcement structure hole, the steering intermediate shaft assembly through the round hole, the integrated brake controller assembly through the round hole, the automatic three-zone air conditioning HVAC assembly vertical square water pipe through hole, the automatic three-zone air conditioning HVAC assembly horizontal waist-shaped air conditioning pipe through hole, the automatic three-zone air conditioning HVAC assembly horizontal square air intake duct through hole and several process holes and installation holes. Due to the difference in the dynamic assembly, the position of the intermediate shaft of the steering system is different, and the upper part of the front fender body of the extended-range and pure electric vehicles is made of different parts.

[0162] ⑩ The lower part 13 of the front baffle body, such as Fig.30 and Fig.31 As shown, the upper part is designed with two rivet welding holes and mounting holes, which are welded and fixed to the front fender cross beam 4 by rivets. The strength can be improved and the risk of cracking can be reduced by increasing the welding points in the middle. The two sides also use the same bending angle as the upper part 12 of the front fender body, and are triangularly bent on both sides to ensure that the lower part 13 of the front fender body and the upper part 12 of the front fender body are welded together. The bending structure of the welded body on both sides can enhance the local deformation of the extrusion force transmitted by the right front longitudinal beam assembly and the left front longitudinal beam assembly when the front cabin is squeezed.

[0163] The left support plate 14 of the front baffle, such as Fig.32 and Fig.33As shown, the arc triangle design is adopted, and the Z-direction height of the cross section increases uniformly. The Z-direction section is the largest at the welding and fastening with the left front vertical plate assembly 16, and the Z-direction section is the smallest at the rightmost welding with the lower part 13 of the front fender body. The front fender cross beam 4 and the lower part 13 of the front fender body are staggered and welded to form a welded body. The triangular welded body here can strengthen the structure and reduce the risk of extrusion deformation and cracking when it is squeezed from the front and left sides. Due to the difference in the width of the longitudinal beam, the left support plate of the front fender of the extended-range and pure electric vehicles is a different part.

[0164] The front baffle right support plate 15, such as Fig.34 and Fig.35 As shown, the arc triangle design is adopted, and the Z-direction height of the cross section increases uniformly. The Z-direction section is the largest at the welding and fastening with the right front vertical plate assembly 17, and the Z-direction section is the smallest at the leftmost welding with the lower part 13 of the front fender body. The front fender cross beam 4 and the lower part 13 of the front fender body are staggered and welded to form a welded body. The triangular welded body here can strengthen the structure and reduce the risk of extrusion deformation and cracking when it is squeezed from the front and right sides. Due to the difference in the width of the longitudinal beam, the right support plate of the front fender of the extended-range and pure electric vehicles is a different part.

[0165] Left front vertical plate assembly 16, such as Fig.36 and Fig.37 As shown, the interior of the car ( Fig.37 The upper part) is welded with the front windshield lower cross beam assembly 18, the upper part of the front fender body 12, the lower part of the front fender body 13, and the front fender left support plate assembly from top to bottom, and the outer side is welded with the left front wheel cover assembly 10, the middle part of the outer plate of the left front wheel cover upper reinforcement beam, the left door sill assembly 27, and the left side panel assembly 1 from top to bottom. The left front vertical plate assembly 16 adopts an inner flange structure on the top surface to perform normal crimping welding with the front windshield lower cross beam assembly in the XZ plane, and the left front vertical plate assembly adopts an outer flange structure on the side to perform positive Y-direction buckling welding with the left side panel assembly 1. The body is strengthened and the weight is reduced by opening process circular holes and rectangular holes and reinforcing rib structures. The left support plate 14 of the front fender is welded to the inner side of the left front vertical plate assembly 16 to strengthen the left front vertical plate assembly 16.

[0166] Right front vertical plate assembly 17, such as Fig.38 and Fig.39As shown, the inside of the vehicle is welded with the front windshield lower cross beam assembly 18, the upper part of the front fender body 12, the lower part of the front fender body 13, and the front fender right support plate assembly from top to bottom, and the outside is welded with the right front wheel cover assembly 9, the middle part of the outer plate of the right front wheel cover upper reinforcement beam, the right door sill assembly 28, and the right side enclosure assembly 2 from top to bottom. The right front vertical plate assembly 17 adopts an inner flange structure on the top surface to perform normal crimping welding with the front windshield lower cross beam assembly in the XZ plane, and the right front vertical plate assembly adopts an outer flange structure on the side to perform positive Y-direction buckling welding with the right side enclosure assembly. The body is strengthened and reduced in weight by opening process circular holes and rectangular holes and reinforcing rib structures. The front fender right support plate 15 is welded to the inner side of the right front vertical plate assembly 17 to strengthen the right front vertical plate assembly 17.

[0167] The front windshield lower crossbeam assembly 18, such as Fig.40 and Fig.41 As shown, a semicircular arc structure is adopted, the two side end faces are respectively welded to the left front vertical plate assembly 16 and the right front vertical plate assembly 17, and the lower end face is X-welded to the upper part of the front baffle body 12. There are multiple reinforcing ribs on the upper surface and inclined surface of the body.

[0168] (202)Front floor assembly, such as Fig.42 and Fig.43 and Fig.56 As shown, it includes: a front longitudinal beam upper cover plate 19, a front fender and a center channel connecting plate 20, a front seat front cross beam assembly 21, a battery front middle mounting bracket 22, an airbag ECU mounting plate 23, a front seat rear cross beam assembly 24, a front floor sill assembly 25, a front floor rear body 26, a left sill assembly 27, a right sill assembly 28, a left sill reinforcement beam assembly 29, and a right sill reinforcement beam assembly 30.

[0169] For pure electric and extended-range vehicles, the front seat front crossbeam assembly 21, the front floor sill assembly 25, the left sill assembly 27, the right sill assembly 28, the left sill reinforcement beam assembly 29, and the right sill reinforcement beam assembly 30 are universal; however, there are differences in the front longitudinal beam upper cover 19, the front baffle and center channel connecting plate 20, the battery front middle mounting bracket 22, the airbag ECU mounting plate 23, the front seat rear crossbeam assembly 24, and the front floor rear body 26.

[0170] ① Front longitudinal beam upper cover 19, such as Fig.44 and Fig.45As shown, a V-angle bending design is adopted, and the bending angle is the same as the lower part 13 of the front fender body. The upper cover plate of the front longitudinal beam is welded to the lower part 13 of the front fender body at the bending slope, and the upper cover plate of the front longitudinal beam is welded to the front floor body at the plane. The upper cover plate of the front longitudinal beam is welded to the lower part of the front fender body and the front floor body to form an integral structure, and the Y-direction welding positions of the upper cover plate of the front longitudinal beam on both sides are respectively aligned with the right front longitudinal beam assembly 7 and the left front longitudinal beam assembly 8 in the Y direction. Through alignment, the squeezing force of the right front longitudinal beam assembly and the left front longitudinal beam assembly can be effectively transmitted from the engine compartment to the middle and rear areas of the vehicle body. For extended-range vehicles, the upper cover plate of the front longitudinal beam 19 adopts a non-through beam, which is shaped like a "7"; for pure electric vehicles, the upper cover plate of the front longitudinal beam 19 is a through beam. The difference here is the structural reinforcement required for extended-range front collision.

[0171] ②Front baffle and middle channel connecting plate 20, such as Fig.46 and Fig.47 As shown, the cross section adopts a W-shaped structure, and the front fender and the middle channel connecting plate 20 are welded on the front floor body. The rear section of the front fender and the middle channel connecting plate 20 is welded to the front cross beam assembly 21 of the front seat, which strengthens the front floor body's ability to withstand front-end extrusion, and forms the third transmission path of the vehicle with the left front longitudinal beam assembly 9 and the right front longitudinal beam assembly 7 on both sides. The W-shaped groove in the middle can increase the strength of the welding structure with the front floor body, and the rear plane of the front fender and the middle channel connecting plate 20 provides four nut holes for fixing the combined inertial navigation, and the front plane of the front fender and the middle channel connecting plate 20 provides two riveted welding studs for fixing the vehicle domain controller bracket. For extended-range vehicles, the front fender and the middle channel connecting plate 20 are closed structures; for pure electric vehicles, the front fender and the middle channel connecting plate 20 are processed to reduce weight, and the part welded with the lower part of the front fender body only retains the welding flange for docking, and the rest of the structure is hollowed out. The difference here is the structural reinforcement required for extended-range front collision.

[0172] ③Front seat front crossbeam assembly 21, such as Fig.48 and Fig.49 As shown, the cross section adopts a C-shaped groove with flange structure, which is fastened on the front floor body and welded, and the front end surface is spliced ​​and welded with the front longitudinal beam upper cover plate 19, the front baffle and the middle channel connecting plate 20. The crossbeam here can improve the side extrusion capacity of the vehicle body and can transmit the extrusion force of three longitudinal paths. And it can provide a total of four fixing points for the left front seat and the right front seat.

[0173] ④ The front of the battery is equipped with a bracket 22, such as Fig.50 and Fig.51As shown, the bottom end face is welded on the front floor body, the rear end face is welded to the front seat rear crossbeam assembly 24, the internal cavity has a welded nut for fixing the power battery assembly, and the internal crossbeam in the middle of the power battery assembly is bolted to the lower body to form a rigid body to enhance the side anti-extrusion ability. For extended-range vehicles, the middle of the battery front middle mounting bracket 22 has a groove for reinforcement, and for pure electric vehicles, the middle of the battery front middle mounting bracket 22 has no groove. The difference here is the reinforcement of the extended-range battery.

[0174] ⑤ Airbag ECU mounting plate 23, such as Fig.52 and Fig.53 As shown, the bottom end face is welded on the front floor body, the rear end face is welded to the front seat rear cross beam assembly 24, the upper surface has five bosses and two grooves, the first three bosses have three welding nuts corresponding to them for fixing the airbag controller assembly, and the rear two bosses have two welding nuts corresponding to them for fixing the armrest box bracket assembly. For the airbag ECU mounting plate 23, the extended range has larger width and height dimensions than the pure electric.

[0175] ⑥Front seat rear crossbeam assembly 24, such as Fig.54 and Fig.55 As shown, the bottom end face is welded on the front floor body, the two side end faces are welded to the inner surfaces of the left door sill assembly 27 and the right door sill assembly 28, and the front end faces are welded to the four battery front mounting brackets 22 and the airbag ECU mounting plate 23. Two groups of four welding nuts and four locating pins are provided on the upper surface to fix the left front seat assembly and the right front seat assembly. The front seat rear crossbeam assembly and the front seat front crossbeam assembly bear the side extrusion together and strengthen the structural strength of the front floor body, which is used to fix and bear the weight of seats, passengers, batteries, fuel tanks, etc. For the front seat rear crossbeam assembly 24, the length difference of the reinforcing plates on both sides of the rear crossbeam is longer than that of pure electric vehicles, and the structure is strengthened.

[0176] ⑦Front floor sill assembly 25, such as Fig.57 As shown, the upper surface is welded with two front longitudinal beam upper covers 19, front baffle and middle channel connecting plate 20, front seat front cross beam assembly 21, four battery front middle mounting brackets 22, airbag ECU mounting plate 23, front seat rear cross beam assembly 24 in sequence from front to back, and the two side end surfaces are welded with left front vertical plate assembly 16, right front vertical plate assembly 17, left door sill assembly 27, right door sill assembly 28 in sequence, the front end surface is overlapped and riveted with the lower part of the front baffle body 13, and the rear end surface is overlapped and riveted with the rear body of the front floor 26. There are folded edges with a 90° upward angle in the Z direction on both sides.

[0177] ⑧ The front floor and rear body 26, such as Fig.58As shown, the front end surface overlaps the front floor sill assembly 25 and is riveted and welded, the two side end surfaces are respectively welded to the left sill assembly 27, the right sill assembly 28, the left sill inner panel rear assembly, and the right sill inner panel rear assembly, and the rear end surface is crimped and welded to the middle floor crossbeam assembly, the left rear longitudinal beam body, and the right rear longitudinal beam body. The rear body of the front floor has a Z-direction bending flange at the rear end. By adjusting the flange height, it can adapt to the different requirements of the EV battery and REEV fuel tank for the Z-direction height size, and has a 90° upward bending flange on both sides. For the rear body of the front floor 26, the difference in the Z-direction height between the extended-range and pure electric vehicles is caused by the difference in the fuel tank and the battery. The extended-range is higher in the Z direction and matches the middle floor crossbeam body of the rear floor assembly.

[0178] ⑨Left door sill assembly 27, such as Fig.59 As shown, the left sill connecting plate (with flange structure butt-welded with the left side surround assembly 1 at the lower left corner) and the left sill inner plate body (C-shaped groove with 90° outer flange bending structure on both sides and two 46° bending structures in the middle) are welded by nesting and pressing. The welded structure is reinforced by adding a welded left sill inner plate reinforcement plate I at the second flange and the joint. There are four holes on the lower surface of the C-shaped groove of the left sill inner plate body corresponding to the welding of four battery pack installation reinforcement plate assemblies (with welding nuts for fixing the side surface of the power battery pack assembly). The four fixed points on one side of the extended range and pure electric vehicles are common. The assembly hanger reinforcement plate is welded at the end of the lower surface of the welded body.

[0179] ⑩Right door sill assembly 28, such as Fig.60 As shown, the right sill connecting plate (with flange structure butt-welded with the right side enclosure assembly 2 at the lower right corner) and the right sill inner plate body (C-shaped groove with 90° outer flange bending structure on both sides and two 46° bending structures in the middle) are welded by nesting and pressing. The welded structure is reinforced by adding a welded right sill inner plate reinforcement plate I at the second flange and the joint. There are four holes on the lower surface of the C-shaped groove of the right sill inner plate body corresponding to the welding of four battery pack installation reinforcement plate assemblies (with welding nuts for fixing the side surface of the power battery pack assembly). The four fixed points on one side of the extended range and pure electric vehicles are common. The assembly hanger reinforcement plate is welded at the end of the lower surface of the welded body.

[0180] The left door sill reinforcement beam assembly 29, such as Fig.61 As shown, the structure is a rectangular steel with two reinforcing vertical ribs inside, cut at a 45° angle at the end, and four threshold connecting plates are evenly distributed on the lower surface. The two middle threshold connecting plates are welded to the lower surface of the left threshold reinforcement beam assembly by riveting, and the two outer threshold connecting plates are fixed to the lower surface of the left threshold reinforcement beam assembly by bolts. The left threshold reinforcement beam assembly is aligned and welded with the second flange of the left threshold assembly 27 through the four threshold connecting plates. It is fixed in the upper front area of ​​the side of the left threshold assembly through the front fixing holes and fixing bolts.

[0181] Right door sill reinforcement beam assembly 30, such as Fig.62 As shown, the structure is a rectangular steel with two reinforcing vertical ribs inside, cut at a 45° angle at the end, and four threshold connecting plates are evenly distributed on the lower surface. The two middle threshold connecting plates are welded to the lower surface of the right threshold reinforcement beam assembly by riveting, and the two outer threshold connecting plates are fixed to the lower surface of the right threshold reinforcement beam assembly by bolts. The right threshold reinforcement beam assembly is aligned and welded with the second flange of the right threshold assembly 28 through the four threshold connecting plates. It is fixed in the front upper area of ​​the side of the right threshold assembly through the front fixing holes and fixing bolts.

[0182] (203) Rear floor assembly, such as Fig.63 and Fig.72 As shown, it includes: a middle floor assembly 31, a right door sill inner panel rear assembly 32, a left door sill inner panel rear assembly 33, a left rear longitudinal beam assembly 34, a right rear longitudinal beam assembly 35, a rear floor body assembly 36, a rear floor left rear connecting plate 37, a rear floor storage box assembly 38, a rear floor right rear connecting plate 39, a rear floor rear connecting plate 40, a rear enclosure inner panel assembly 41, a rear enclosure outer panel assembly 42, and a rear anti-collision beam assembly 43.

[0183] For pure electric and extended-range vehicles, the right door sill inner panel rear assembly 32, the left door sill inner panel rear assembly 33, the rear floor body assembly 36, the rear floor left rear connecting plate 37, the rear floor rear connecting plate 40, the rear enclosure inner panel assembly 41, the rear enclosure outer panel assembly 42, and the rear anti-collision beam assembly 43 are universal; however, there are differences in the middle floor assembly 31, the left rear longitudinal beam assembly 34, the right rear longitudinal beam assembly 35, the rear floor storage box assembly 38, and the rear floor right rear connecting plate 39.

[0184] ① Middle floor assembly 31, such as Fig.64 and Fig.65 As shown, the middle floor crossbeam assembly and the middle floor body assembly are buckled and welded, the middle floor crossbeam assembly has a lower flange and an upper flange, the lower flange is welded with the flange of the rear body 26 of the front floor, the upper flange is buckled and welded with the middle floor body assembly, two holes on each side of the middle floor crossbeam assembly are fixed to the front flange of the left rear longitudinal beam body and the right rear longitudinal beam body casting by flow drill screws, the two sides of the middle floor body assembly are respectively welded and fastened with flow drill screws to the left rear longitudinal beam body and the right rear longitudinal beam body, the oblique flange of the middle floor assembly is respectively fastened with welding and flow drill screws to the rear floor body assembly and the left rear longitudinal beam body and the right rear longitudinal beam body. The difference between the extended range and pure electric is mainly the increase in the Z-direction height of the fuel tank, which leads to the increase in the Z-direction height of the first flange of the middle floor assembly to match the fuel tank layout.

[0185] ②Right door sill inner panel rear assembly 32, such as Fig.66 and Fig.67As shown, it is embedded and buckled into the inside of the bayonet of the right rear longitudinal beam body for welding, the outer flange of the rear assembly of the right sill inner panel is butt-welded with the inner flange of the right side surround assembly 2, and a lifting bracket is welded on the lower plane of the rear assembly 32 of the right sill inner panel.

[0186] ③ Left door sill inner panel rear assembly 33, such as Fig.68 and Fig.69 As shown, it is embedded and buckled into the inside of the bayonet of the left rear longitudinal beam body for welding, the outer flange of the rear assembly of the left sill inner panel is butt-welded with the inner flange of the left side surround assembly 1, and a lifting bracket is welded on the lower plane of the rear assembly 33 of the left sill inner panel.

[0187] ④ Left rear longitudinal beam assembly 34, such as Fig.70 As shown, the outer slot of the longitudinal beam of the front section of the left rear longitudinal beam body is clamped with the left sill inner panel rear assembly 33 and then welded and screwed. The upper surface of the slot has a mounting hole that is bolted to the convex weld nut on the upper inner surface of the left sill inner panel rear assembly 33. The lower slot is an inclined structure that is more conducive to absorbing tolerances, making it easier for the left rear longitudinal beam body and the left sill inner panel rear assembly 33 to fit together. The inclined surface of the lower slot of the left rear longitudinal beam body is connected to the inclined surface of the left sill inner panel rear assembly 33 by welding. The honeycomb structure inside the longitudinal beam can effectively increase strength and reduce weight and cost. At the same time, a mounting threaded hole is provided on the side. The left sill inner panel rear assembly 33 is bolted to the threaded hole of the internal honeycomb structure of the left rear longitudinal beam body and fastened. The middle section of the left rear longitudinal beam is a semi-circular arc structure, which avoids the left rear tire envelope to meet the clearance requirements of the vehicle driving conditions and the tire. The honeycomb structure is used inside to reduce weight and provide a fixing point for the wheel cover. The rear section of the left rear longitudinal beam is used to connect the rear anti-collision beam assembly and support the rear floor left rear connecting plate and the rear floor storage box assembly. The difference of the left rear longitudinal beam assembly 34 is at the joint between the front section longitudinal beam of the body and the middle floor assembly, because the Z-direction height of the middle floor assembly is higher here. In order to assemble the extended-range fuel tank, the welding flange height of the front section longitudinal beam of the body is different.

[0188] ⑤Right rear longitudinal beam assembly 35, such as Fig.71As shown, the outer slot of the front section of the right rear longitudinal beam body is clamped with the right sill inner panel rear assembly 32 and then welded and screwed. The upper surface of the slot has a mounting hole that is bolted to the convex weld nut on the upper inner surface of the right sill inner panel rear assembly 32. The lower slot is an inclined structure that is more conducive to absorbing tolerances, making it easier for the right rear longitudinal beam body and the right sill inner panel rear assembly 32 to fit together. The inclined surface of the lower slot of the right rear longitudinal beam body is connected to the inclined surface of the right sill inner panel rear assembly by welding. The honeycomb structure inside the longitudinal beam can effectively increase strength and reduce weight and cost. At the same time, a mounting threaded hole is provided on the side. The right sill inner panel rear assembly 32 is bolted to the threaded hole of the internal honeycomb structure of the right rear longitudinal beam body and fastened. The middle section of the right rear longitudinal beam body is a semi-circular arc structure, which avoids the right rear tire envelope to meet the clearance requirements between the vehicle driving conditions and the tire. The honeycomb structure is used inside to reduce weight and provide a fixing point for the wheel cover. The rear section of the right rear longitudinal beam body is used to connect the rear anti-collision beam assembly 43 and support the rear right rear connecting plate 39 of the rear floor and the rear floor storage box assembly 38. The difference of the right rear longitudinal beam assembly 35 is at the joint of the front section longitudinal beam of the body and the middle floor assembly, because the Z-direction height of the middle floor assembly is higher here. In order to assemble the extended-range fuel tank, the welding flange height difference of the front section longitudinal beam of the body is caused. The middle section of the body is a semi-circular arc structure. Because the extended-range fuel system is added, the activated carbon canister assembly and the refueling pipe with accessories assembly are provided here. After being fixed, it is changed to a combination of arc and vertical structure to bring about the difference.

[0189] ⑥ Rear floor body assembly 36, such as Fig.73 and Fig.74 As shown, the front bending surface is overlapped and welded with the rear bending surface of the middle floor assembly 31 and fastened with flow drill screws, and the two side surfaces are overlapped on the inner flanges of the left rear longitudinal beam assembly 34 and the right rear longitudinal beam assembly 35 respectively and fastened by welding and flow drill screws, and the rear end surface provides support and fixation for the rear floor storage box assembly 38. The rear floor body assembly 36 forms a C-ring reinforcement beam by welding the upper cross beam body of the floor and the left connecting plate assembly of the rear floor cross beam on the left rear longitudinal beam body and the right connecting plate assembly of the rear floor cross beam on the right rear longitudinal beam body, thereby improving the torsional strength of the vehicle body at the rear.

[0190] ⑦ Rear floor left rear connecting plate 37, such as Fig.75 and Fig.76 As shown, the front end face is folded and connected to the left rear longitudinal beam body by welding, the side face is folded and fastened to the left rear longitudinal beam body by bolts (sharing the fastening point with the left flange of the rear floor storage box assembly), and the rear end flange is welded to the rear inner panel assembly 41. The rear floor left rear connecting plate 37 fixes the 12V lithium battery, and the middle part has a reinforced groove and a wiring harness through hole.

[0191] ⑧ Rear floor storage box assembly 38, such as Fig.77As shown, the front end flange is overlapped on the upper surface of the rear floor body assembly 36 and fastened by bolts, the two side flanges are respectively overlapped on the upper surfaces of the left rear connecting plate 37 and the right rear connecting plate 39 of the rear floor and fastened by bolts, and the rear end flange is overlapped on the upper surface of the rear connecting plate 40 of the rear floor and fastened by bolts.

[0192] ⑨Rear floor right rear connecting plate 39, such as Fig.78 and Fig.79 As shown, the front end face bent edge overlaps the right rear longitudinal beam body and is connected by welding, the side edge overlaps the right rear longitudinal beam body and is fastened by bolts (sharing the fastening point with the right flange of the rear floor storage box assembly), and the rear end flange is welded to the rear enclosure inner panel assembly 41. The rear floor right rear connecting plate 39 fixes the subwoofer and has a reinforcing transverse rib.

[0193] ⑩ Rear floor rear connecting plate 40, such as Fig.80 and Fig.81 As shown, the bottom planes of the two side end caps are respectively overlapped on the upper planes of the rear left rear connecting plate 37 and the rear right rear connecting plate 39 of the rear floor and are fastened by bolts, and the rear end face flanges are welded to the overlapping parts of the rear end face flanges of the rear left rear connecting plate 37 and the rear right rear connecting plate 39 of the rear floor.

[0194] The rear inner panel assembly 41, such as Fig.82 and Fig.83 As shown, the inner surface is respectively welded to the rear end face flanges of the rear floor left rear connecting plate 37, the rear floor rear connecting plate 40, and the rear floor right rear connecting plate 39, the left side is clamped between the left rear longitudinal beam assembly 34 and the rear anti-collision beam assembly 43 and fixedly connected by bolts, and the right side is clamped between the right rear longitudinal beam assembly 35 and the rear anti-collision beam assembly 43 and fixedly connected by bolts.

[0195] The rear outer panel assembly 42, such as Fig.84 As shown, the upper and lower sides have two flange structures, the first flange is used to strengthen the main body strength, the second flange is respectively connected to the flange of the rear enclosure inner panel assembly 41 and welded, four rear bumper upper fixing brackets are welded on the surface of the middle groove to fix the rear bumper assembly, the welded body of the rear enclosure inner panel assembly 41 and the rear enclosure outer panel assembly 42 is clamped between the left rear longitudinal beam assembly 34 and the rear anti-collision beam assembly 43 on the left side and fixedly connected by bolts on the right side, and is clamped between the right rear longitudinal beam assembly 35 and the rear anti-collision beam assembly 43 on the right side and fixedly connected by bolts on the right side.

[0196] Rear anti-collision beam assembly 43, such as Fig.85As shown, it is welded by the left mounting plate of the rear anti-collision beam (welded with the left mounting bracket of the rear anti-collision beam), the right mounting plate of the rear anti-collision beam (welded with the right mounting bracket of the rear anti-collision beam), the upper energy absorption box of the rear anti-collision beam, the lower energy absorption box of the rear anti-collision beam, and the rear anti-collision beam body (welded with the lower left mounting bracket of the rear anti-collision beam); the upper energy absorption box of the rear anti-collision beam and the lower energy absorption box of the rear anti-collision beam are butt-welded to form a welded body, and are welded to the left mounting plate of the rear anti-collision beam and the right mounting plate of the rear anti-collision beam. The two welded bodies formed are respectively welded on both sides of the inner plane of the rear anti-collision beam body. The upper and lower surfaces of the upper energy absorption box of the rear anti-collision beam and the lower energy absorption box of the rear anti-collision beam are provided with waist-shaped holes and round holes, which can deform and absorb energy when squeezed at the rear.

[0197] (3) For outer covering parts, such as Fig.86 , Fig.87 , Fig.88 and Fig.89 As shown, it includes a front windshield 44, a panoramic sunroof glass 45, a plastic tailgate assembly 46, a rear windshield 47, a left front door sheet metal assembly 48, a left front side door glass assembly 49, a left rear door sheet metal assembly 50, a left rear side door glass assembly 51, a right front door sheet metal assembly 52, a right front side door glass assembly 53, a right rear door sheet metal assembly 54, and a left rear side door glass assembly 55.

[0198] For pure electric and extended-range vehicles, the front windshield 44, panoramic sunroof glass 45, plastic tailgate assembly 46, rear windshield 47, left front door sheet metal assembly 48, left front side door glass assembly 49, left rear door sheet metal assembly 50, left rear side door glass assembly 51, right front door sheet metal assembly 52, right front side door glass assembly 53, right rear door sheet metal assembly 54, and left rear side door glass assembly 55 are all universal.

[0199] ① The front windshield 44, with a rubber strip on the lower edge, is crimped onto the outer metal flange of the front windshield lower cross beam assembly 18, and the rubber strips on both sides of the front windshield are respectively crimped onto the inner metal flanges of the A-pillars of the left side enclosure assembly 1 and the right side enclosure assembly 2; the rubber strip on the upper edge of the front windshield is crimped onto the front upper surface of the welding cavity (the front top cross beam inner plate and the front top cross beam assembly are crimped and welded to form the welding cavity), and the glass is fastened to the above surfaces and fixed with fixing glue. Since the above matching boundaries are completely consistent, the front windshield can be used as a universal part.

[0200] ② The panoramic sunroof glass 45 is respectively pressed on the upper rear surface of the welding cavity (the front top cross beam inner plate and the front top cross beam assembly are press-welded to form the welding cavity), on the inner sheet metal flange from the A-pillar to the C-pillar of the left side surround assembly 1, on the inner sheet metal flange from the A-pillar to the C-pillar of the right side surround assembly 2, and the rear portion is press-welded on the upper surface of the welding cavity (the rear top cross beam assembly and the rear top cross beam inner plate are press-welded to form the welding cavity). Since the above matching boundaries are completely consistent, the panoramic sunroof glass can be used as a universal part.

[0201] ③ The plastic tailgate assembly 46, the top rubber strip cooperates with the welding cavity (the rear top cross beam assembly and the rear top cross beam inner plate are crimped and welded to form a welding cavity), the left side rubber strip cooperates with the welding body sub-component of the left side surround assembly 1 (left rear water gutter body, left rear taillight mounting plate assembly), and the right side rubber strip cooperates with the welding body sub-component of the right side surround assembly 2 (right rear water gutter body, right rear taillight mounting plate assembly). Since the above cooperation boundaries are completely consistent, the plastic tailgate assembly can be made into a universal part.

[0202] ④ The rear windshield 47 is crimped with adhesive strips around it to the inner flange of the plastic tailgate assembly 46. Since the above matching boundaries are completely consistent, the rear windshield can be used as a universal part.

[0203] ⑤ The left front door sheet metal assembly 48 can be used as a universal part because it cooperates with the left side surround assembly 1 and the cooperation boundaries are completely consistent.

[0204] ⑥ The left front door glass assembly 49 cooperates with the left front door sheet metal assembly 48 and the left side surround assembly 1, and the cooperation boundaries are completely consistent, so the left front door glass assembly can be used as a universal part.

[0205] ⑦ The left rear door sheet metal assembly 50 can be used as a universal part because it cooperates with the left side surround assembly 1 and the cooperation boundaries are completely consistent.

[0206] ⑧ The left rear door glass assembly 51 cooperates with the left rear door sheet metal assembly 50 and the left side surround assembly 1, and the cooperation boundaries are completely consistent, so the left rear door glass assembly can be used as a universal part.

[0207] ⑨ The right front door sheet metal assembly 52 can be used as a universal part because it cooperates with the right side enclosure assembly 2 and the cooperation boundaries are completely consistent.

[0208] ⑩ The right front door glass assembly 53 cooperates with the right front door sheet metal assembly 52 and the right side enclosure assembly 2, and the cooperation boundaries are completely consistent, so the right front door glass assembly can be used as a universal part.

[0209] The right rear door sheet metal assembly 54 cooperates with the right side enclosure assembly 2, and the cooperation boundaries are completely consistent, so the right rear door sheet metal assembly can be used as a universal part.

[0210] The right rear door glass assembly 55 cooperates with the right rear door sheet metal assembly 54 and the right side enclosure assembly 2, and the cooperation boundaries are completely consistent, so the right rear door glass assembly can be used as a universal part.

[0211] The present embodiment provides a body assembly shared by pure electric and extended-range vehicles, which can simultaneously match two different power systems, extended-range and pure electric. The upper body structure can be shared through the commonality of part of the lower body structure, and then the upper body exterior covering parts can be shared.

[0212] The present embodiment provides a body assembly shared by a pure electric vehicle and an extended-range vehicle, which shares the left front vertical plate assembly and the right front vertical plate assembly and the front windshield lower cross beam assembly of the engine compartment, shares the front seat front cross beam assembly, the front floor sill assembly, the left sill assembly, the right sill assembly, the left sill reinforcement beam assembly, and the right sill reinforcement beam assembly of the front floor assembly, shares the left sill inner plate rear assembly 33, the right sill inner plate rear assembly 32, the rear floor body assembly 36, the rear enclosure inner plate assembly 41, the rear enclosure outer plate assembly 42, the rear anti-collision beam assembly 43, the rear floor left rear connecting plate 37, and the rear floor rear connecting plate 40 of the rear floor assembly. In summary, the left side enclosure assembly, the right side enclosure assembly, and the top cover system of the upper body are shared through the above shared parts of the lower body, and the outer covering parts are shared through the above shared parts of the upper body.

[0213] Example 2

[0214] Embodiment 2 of the present invention provides a pure electric vehicle.

[0215] This embodiment provides a pure electric vehicle, such as Fig.90 As shown, a vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle is adopted as described in the first embodiment.

[0216] Example 3

[0217] Embodiment 3 of the present invention provides an extended-range vehicle.

[0218] This embodiment provides a range-extended vehicle, such as Fig.91 As shown, a vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle is adopted as described in the first embodiment.

[0219] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A body assembly shared by pure electric vehicles and extended-range vehicles, Features: Including the front seat front cross beam assembly, the left door sill assembly, the right door sill assembly and the front floor door sill assembly; The cross section of the front cross beam assembly of the front seat adopts a C-shaped groove with a flange structure, which is fastened to the front floor body and welded, and the front end surface is spliced ​​and welded with the front longitudinal beam upper cover plate, the front baffle plate and the middle channel connecting plate; The left sill assembly and the right sill assembly are composed of a sill connecting plate and a sill inner plate body that are nested and pressed together and welded; the sill connecting plate is a flanged structure and is butt-welded with the left side panel assembly or the right side panel assembly; the sill inner plate body is a C-shaped groove, and a plurality of holes are provided on the lower surface to correspond to the welding of a plurality of battery pack installation reinforcement plate assemblies; The front floor sill assembly has bent flanges at 90° upward in the Z direction on both sides, and the end faces on both sides are welded to the left front vertical plate assembly, the right front vertical plate assembly, the left sill assembly and the right sill assembly in sequence.

2. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: Also included are a left door sill reinforcement beam assembly and a right door sill reinforcement beam assembly; A plurality of threshold connecting plates are evenly distributed on the lower surfaces of the left threshold reinforcement beam assembly and the right threshold reinforcement beam assembly so as to be aligned and welded with the flange of the left threshold assembly or the right threshold assembly.

3. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: The upper surface of the front floor sill assembly is welded with two front longitudinal beam upper cover plates, a front baffle and a middle channel connecting plate, a front seat front crossbeam assembly, four battery front middle mounting brackets, an airbag ECU mounting plate and a front seat rear crossbeam assembly in sequence from front to rear; The front end surface of the front floor sill assembly is overlapped with the lower part of the front baffle body and is riveted and welded, and the rear end surface is overlapped with the rear body of the front floor and is riveted and welded.

4. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: It also includes a left front vertical plate assembly, a right front vertical plate assembly and a front windshield lower crossbeam assembly; The lower end surface of the front windshield lower cross beam assembly is welded to the upper part of the front baffle body in the X direction; The inner side of the left front vertical plate assembly is welded with the front windshield lower cross beam assembly, the upper part of the front fender body, the lower part of the front fender body and the front fender left support plate assembly in sequence from top to bottom, and the outer side of the left front vertical plate assembly is welded with the left front wheel cover assembly, the left door sill assembly and the left side panel assembly in sequence from top to bottom; the left front vertical plate assembly adopts an inner flange structure on the top surface to perform normal crimping welding with the front windshield lower cross beam assembly in the XZ plane, and adopts an outer flange structure on the side surface to perform positive Y-direction buckling welding with the left side panel assembly; The inner side of the right front vertical plate assembly is welded with the front windshield lower cross beam assembly, the upper part of the front fender body, the lower part of the front fender body and the front fender right support plate assembly in sequence from top to bottom, and the outer side of the right front vertical plate assembly is welded with the right front wheel cover assembly, the right door sill assembly and the right side surround assembly in sequence from top to bottom; the right front vertical plate assembly adopts an inner flange structure on the top surface to perform XZ plane normal crimping welding with the front windshield lower cross beam assembly, and adopts an outer flange structure on the side surface to perform positive Y-direction buckling welding with the right side surround assembly.

5. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: The front longitudinal beam upper cover plate adopts a bending V-angle design, and the bending angle is the same as that of the lower part of the front fender body, so as to be welded to the lower part of the front fender body, and the front longitudinal beam upper cover plate is welded to the front floor body at the plane, and an integral structure is formed by welding the front longitudinal beam upper cover plate, the lower part of the front fender body and the front floor body, and the Y-direction welding positions of the front longitudinal beam upper cover plate on both sides are respectively aligned with the Y-direction of the right front longitudinal beam assembly and the left front longitudinal beam assembly.

6. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: Also included is a right side sill inner panel rear assembly and a left side sill inner panel rear assembly; The outer flange of the rear assembly of the right sill inner panel is butt-welded with the inner flange of the right side panel assembly; The outer flange of the rear assembly of the left sill inner panel is butt-welded with the inner flange of the left side panel assembly.

7. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: Also included is a rear floor body assembly; The front end bending surface of the rear floor body assembly is overlapped and welded with the rear end bending surface of the middle floor assembly, and the two side surfaces are overlapped on the inner flanges of the left rear longitudinal beam assembly and the right rear longitudinal beam assembly respectively and fastened by welding and flow drill screws, and the rear end surface provides support and fixation for the rear floor storage box assembly.

8. A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle as claimed in claim 1, Features: It also includes a rear left connecting plate of the rear floor, a rear enclosure inner panel assembly and a rear enclosure outer panel assembly; The front end face of the left rear connecting plate of the rear floor is folded and overlapped on the left rear longitudinal beam body and connected by welding, the side face is overlapped and fastened on the left rear longitudinal beam body by bolts, and the rear end flange is welded to the rear enclosure inner panel assembly; The inner surface of the rear enclosure inner panel assembly is respectively welded to the rear end flanges of the rear floor left rear connection plate, the rear floor rear connection plate, and the rear floor right rear connection plate; The upper and lower sides of the rear outer panel assembly are provided with two flange structures, the first flange is used to strengthen the body strength, the second flange is respectively butted and welded with the flanges of the rear inner panel assembly, and the fixed bracket is fixed on the surface of the middle groove after welding to fix the rear bumper assembly; The left side of the welded body of the rear enclosure inner panel assembly and the rear enclosure outer panel assembly is clamped between the left rear longitudinal beam assembly and the rear anti-collision beam assembly and fixedly connected by bolts, and the right side is clamped between the right rear longitudinal beam assembly and the rear anti-collision beam assembly and fixedly connected by bolts.

9. A pure electric vehicle, Features: A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle is adopted as described in any one of claims 1 to 8.

10. A range-extended vehicle, Features: A vehicle body assembly shared by a pure electric vehicle and an extended-range vehicle is adopted as described in any one of claims 1 to 8.

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