Automobile forecabin assembly

Abstract

The utility model relates to the field of automobile bodies, in particular to an automobile forecabin assembly which comprises a longitudinal beam assembly, a wheel cover assembly and a front baffle assembly. The longitudinal beam assembly comprises two single longitudinal beam assemblies which are oppositely distributed; the wheel cover assembly comprises two single wheel cover assemblies which are oppositely distributed; the front baffle assembly comprises a front baffle cross beam, a front baffle lower cross beam and a supporting beam. A single wheel cover assembly is arranged on each single longitudinal beam assembly; the two ends of the front baffle cross beam and the two ends of the front baffle lower cross beam are connected to the two single wheel cover assemblies respectively. The front baffle cross beam is connected with the front baffle lower cross beam through a supporting beam; according to the front baffle assembly disclosed by the utility model, the strength of an automobile forecabin assembly is well guaranteed, and meanwhile, the front baffle cross beam is directly connected with the front baffle lower cross beam through the arrangement of the supporting beam, so that the front baffle cross beam, the supporting beam and the front baffle lower cross beam form an I-shaped structure; and the overall structural strength of the forecabin assembly is better ensured.

Description

Technical Field

[0001] The utility model relates to the field of automobile bodies, in particular to an automobile front cabin assembly. Background Art

[0002] The front cabin assembly structure is one of the important parts of the electric vehicle body cockpit. It carries important parts such as the front suspension and pedals of the vehicle. It is also an effective barrier between the front cabin environment and the driver and passengers. The longitudinal beam structure and A-pillar structure are also important energy absorption areas and force transmission structures in the event of a frontal collision, playing a vital role in protecting the driver and passengers.

[0003] At present, the front cabin of the automobile body is mainly composed of thin steel plates that are stamped and then welded. It is heavy, has a large number of parts, a complex structure, a long production line, a large tooling investment, and requires electrophoresis treatment for corrosion protection.

[0004] It is not conducive to the lightweighting of electric vehicles and cannot effectively extend the driving range of electric vehicles. In addition, the manufacturing, assembly and maintenance costs of metal parts are relatively high, which is not conducive to reducing costs and cannot meet energy-saving and environmental protection requirements.

[0005] In addition, the traditional automobile front cabin structure is composed of multiple sets of steel plate stamping parts, which are welded into small welded assembly parts, such as the front longitudinal beam assembly, A-pillar assembly, etc., and then these small welded parts are welded again to form the required front cabin assembly structure; the welding process is complicated, requiring a variety of tooling and fixtures to ensure welding accuracy, as well as a variety of welding equipment for operation, which requires large investment, high cost and complex process.

[0006] The existing patent 201110443819.1 - Front cabin steel frame structure and front cabin of electric vehicle discloses a front cabin assembly structure, but does not emphasize how to achieve lightweighting of the entire vehicle.

[0007] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing front cabin assembly. Utility Model Content

[0008] The utility model aims to provide an automobile front cabin assembly with high overall structural strength.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A front cabin assembly of an automobile comprises a longitudinal beam assembly, a wheel cover assembly and a front fender assembly;

[0011] The longitudinal beam assembly includes two relatively distributed single-body longitudinal beam assemblies;

[0012] The wheel cover assembly includes two relatively distributed single-body wheel cover assemblies;

[0013] The front fender assembly includes a front fender cross beam, a front fender lower cross beam and a support beam;

[0014] A monocoque wheelhouse assembly is provided on each monocoque longitudinal beam assembly;

[0015] The two ends of the front fender cross beam and the front fender lower cross beam are respectively connected to two single-body wheel cover assemblies; the front fender cross beam is connected to the front fender lower cross beam through a support beam.

[0016] Each of the single-body wheel cover assemblies is provided with an open slot for inserting a front fender cross beam or a front fender lower cross beam.

[0017] Two support beams are arranged between the front baffle cross beam and the front baffle lower cross beam, and the two support beams are distributed in an eight-shaped shape.

[0018] The front fender assembly also includes a front water trough crossbeam whose two ends are respectively overlapped on the single wheel cover assembly; the vertical cross section of the front water trough crossbeam is a polygon.

[0019] The front baffle cross beam is provided with an avoidance groove; the front baffle cross beam has a cavity inside, and a cross beam reinforcement beam is provided inside the front baffle cross beam.

[0020] The single longitudinal beam assembly comprises a front longitudinal beam, the interior of the front longitudinal beam has a cavity, and a longitudinal beam reinforcement beam is arranged inside the front longitudinal beam.

[0021] The automobile front cabin assembly also includes a front anti-collision beam assembly; the front anti-collision beam assembly includes a front bumper body; the front bumper body is connected to the front longitudinal beam through an energy absorption box.

[0022] The energy absorption box is connected to the front longitudinal beam through a cover plate.

[0023] The front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all hollow inside; the front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all provided with reinforcement plates.

[0024] The front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all made of hollow aluminum profiles; the single wheel cover assembly is a cast aluminum part.

[0025] The advantages of the utility model are:

[0026] The utility model discloses a front cabin assembly of an automobile.

[0027] The front fender assembly disclosed by the utility model well ensures the strength of the front cabin assembly of the automobile. At the same time, through the arrangement of the support beam, the front fender cross beam and the front fender lower cross beam are directly connected, so that the front fender cross beam, the support beam and the front fender lower cross beam form an I-shaped structure, which better ensures the overall structural strength of the front cabin assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following is a brief description of the contents expressed in each of the drawings of the utility model specification and the marks in the drawings:

[0029] Figure 1 It is a structural schematic diagram of the utility model from the first viewing angle.

[0030] Figure 2 It is a structural schematic diagram of the utility model from the first viewing angle.

[0031] Figure 3 It is the front view of the single body wheel cover assembly in the utility model.

[0032] Figure 4 It is a left side view of the single body wheel cover assembly in the utility model.

[0033] Figure 5 It is a rear view of the single-body wheel cover assembly in the utility model.

[0034] Figure 6 It is an axonometric view of the single-body wheel cover assembly in the present utility model.

[0035] Figure 7 It is a structural schematic diagram of the single longitudinal beam assembly in the utility model.

[0036] Figure 8 It is a structural schematic diagram of the front baffle cross beam in the utility model.

[0037] Fig. 9 It is a structural schematic diagram of the front longitudinal beam in the utility model.

[0038] Fig.10 It is a front view of the front longitudinal beam in the utility model.

[0039] Fig.11 It is a structural schematic diagram of the lower cross beam of the front baffle in the utility model.

[0040] Fig.12 It is a front view of the lower cross beam of the front baffle in the utility model.

[0041] Fig.13 It is a structural schematic diagram of the front flow trough crossbeam in the utility model.

[0042] Fig.14 It is a front view of the front water trough crossbeam in the utility model.

[0043] Fig.15 It is a structural schematic diagram of the support beam in the utility model.

[0044] Fig.16 It is the front view of the support beam in the utility model.

[0045] Fig.17 It is a structural schematic diagram of the longitudinal beam reinforcement beam in the utility model.

[0046] Fig.18 It is a structural schematic diagram of the cross beam reinforcement beam in the utility model.

[0047] Fig.19 It is a structural schematic diagram of the cover plate in the utility model.

[0048] Fig. 20 It is a structural schematic diagram of the front anti-collision beam assembly of the utility model.

[0049] The marks in the above figure are:

[0050] 1. Front longitudinal beam assembly, 2. Wheel cover assembly, 3. Front anti-collision beam assembly, 4. Front fender assembly. DETAILED DESCRIPTION

[0051] The specific implementation methods of the present utility model will be further explained in detail below by describing the optimal embodiments with reference to the accompanying drawings.

[0052] A front cabin assembly of an automobile, comprising a longitudinal beam assembly 1, a wheel cover assembly 2 and a front fender assembly 4; the longitudinal beam assembly 1 comprises two relatively distributed single-body longitudinal beam assemblies 1; the wheel cover assembly 2 comprises two relatively distributed single-body wheel cover assemblies 21; the front fender assembly 4 comprises a front fender cross beam 42, a front fender lower cross beam 43 and a support beam 44; each single-body longitudinal beam assembly 1 is provided with a single-body wheel cover assembly 21; the front fender cross beam 42 and the front fender lower cross beam 43 are respectively connected at both ends It is connected to two single-body wheel house assemblies 21; the front fender cross beam 42 is connected to the front fender lower cross beam 43 through a support beam 44; the front fender assembly 4 disclosed in the utility model well ensures the strength of the front cabin assembly of the automobile, and at the same time, through the setting of the support beam 44, the front fender cross beam 42 and the front fender lower cross beam 43 are directly connected, so that the front fender cross beam 42, the support beam 44 and the front fender lower cross beam 43 form an I-shaped structure, which better ensures the overall structural strength of the front cabin assembly.

[0053] Specifically, the automobile front cabin assembly disclosed in the utility model mainly includes a longitudinal beam assembly 1, a wheel cover assembly 2 and a front fender assembly 4; the longitudinal beam assembly 1 includes two relatively distributed single longitudinal beam assemblies 1; the two single longitudinal beam assemblies 1 can be called a left longitudinal beam assembly 1 or a right longitudinal beam assembly 1 based on different setting positions.

[0054] The wheel cover assembly 2 includes two relatively distributed single-body wheel cover assemblies 21; the single-body wheel cover assembly 21 can be referred to as a left wheel cover assembly 2 and a right wheel cover assembly 2 based on different setting positions.

[0055] At the same time, in the present invention, the front baffle assembly 4 mainly serves as an internal support member and a connecting member, which well ensures the overall structural strength of the front cabin assembly.

[0056] Specifically, in the utility model, the front fender assembly 4 mainly includes a front fender cross beam 42, a front fender lower cross beam 43 and a support beam 44; each single longitudinal beam assembly 1 is provided with a single wheel cover assembly 21; when in use, each single longitudinal beam assembly 1 is overlapped on the corresponding single longitudinal beam assembly 1, and then connected by welding; the connection stability between the single longitudinal beam assembly 1 and the single longitudinal beam assembly 1 is ensured.

[0057] At the same time, in the utility model, the two ends of the front fender cross beam 42 and the front fender lower cross beam 43 are respectively connected to the two single-body wheel cover assemblies 21; such a setting makes the front fender cross beam 42 and the front fender lower cross beam 43 act as two connecting beams, realizing the connection between the single-body wheel cover assemblies 21 on both sides. At the same time, in the utility model, the front fender cross beam 42 is connected to the front fender lower cross beam 43 through the support beam 44; the setting of the support beam 44 makes the front fender cross beam 42 and the front fender lower cross beam 43 have a connection relationship with each other, and then the front fender cross beam 42, the support beam 44 and the front fender lower cross beam 43 form a structure similar to an I-shaped structure, which better ensures the stability of the front fender assembly 4 supporting the single-body wheel cover assemblies 21 on both sides, and better ensures the structural strength of the front cabin assembly.

[0058] Furthermore, in the utility model, each of the single-body wheel cover assembly 21 is provided with an open groove 201 for plugging in the front fender cross beam 42 or the front fender lower cross beam 43; the open groove 201 here is a sink structure, which acts as an installation limit and positioning in subsequent use, and can well ensure the stability and accuracy of the connection between the front fender cross beam 42 and the front fender lower cross beam 43 on the single-body wheel cover assembly 21.

[0059] Furthermore, in the utility model, two support beams 44 are provided between the front fender cross beam 42 and the front fender lower cross beam 43, and the two support beams 44 are distributed in an eight-shape; the coordinated use of the two support beams 44 better increases the stability of the connection between the front fender cross beam 42 and the front fender lower cross beam 43, and at the same time, the two support beams 44 cooperate with each other to ensure the accuracy of the relative position of the front fender cross beam 42 and the front fender lower cross beam 43.

[0060] Furthermore, in the utility model, the front fender assembly 4 also includes a front water trough crossbeam 41 whose two ends are respectively overlapped on the single-body wheel cover assembly 21; in the utility model, the front water trough crossbeam 41 is mainly overlapped on the shock absorber seats of the two single-body wheel cover assemblies 21 respectively; the connection between the two single-body wheel cover assemblies 21 is realized to ensure the integrity of the front cabin assembly.

[0061] In addition, in the present invention, the vertical cross section of the front water trough beam 41 is a polygon; in the present invention, based on such a setting, the structural strength of the front water trough beam 41 itself can be guaranteed; at the same time, the hollow front water trough beam 41 also has a certain weight reduction effect.

[0062] Furthermore, in the utility model, the front fender cross beam 42 is provided with an avoidance groove 421; the avoidance groove 421 is an opening made on the front fender cross beam 42 to reduce the installation interference between components. At the same time, in the utility model, the front fender cross beam 42 has a cavity inside, and the front fender cross beam 42 is provided with a cross beam reinforcement beam 402; the cross beam reinforcement beam 402 plays a good internal supporting role, ensuring the structural strength of the front fender cross beam 42, and avoiding the strength of the front fender cross beam 42 being affected by the setting of the avoidance groove 421.

[0063] At the same time, in the utility model, the single longitudinal beam assembly 1 includes a front longitudinal beam 101, the front longitudinal beam 101 has a cavity inside, and a longitudinal beam reinforcement beam 103 is provided inside the front longitudinal beam 101; the longitudinal beam reinforcement beam 103 is inserted into the end of the front longitudinal beam 101 away from the front guard body, and its essential purpose is to ensure the overall structural strength of the single longitudinal beam assembly 1.

[0064] Furthermore, in the present invention, the automobile front cabin assembly also includes a front anti-collision beam assembly 3; the front anti-collision beam assembly 3 includes a front protection body 31; the front protection body 31 is connected to the front longitudinal beam 101 through an energy absorption box 32; the energy absorption box 32 is connected to the front longitudinal beam 101 through a cover plate 33; in the present invention, the collision safety of the front end of the front cabin assembly is guaranteed by the arrangement of the front anti-collision beam assembly 3.

[0065] Furthermore, in the present invention, the front fender cross beam 42, the support beam 44, the front fender lower cross beam 43, the longitudinal beam reinforcement beam 103, and the cross beam reinforcement beam 402 are all hollow inside; based on the above design, it can be known that the front fender cross beam 42, the support beam 44, the front fender lower cross beam 43, the longitudinal beam reinforcement beam 103, and the cross beam reinforcement beam 402 of the present invention are all a hollow beam structure, such a setting can well reduce the front fender cross beam 42, the support beam 44, the front fender lower cross beam 43, the longitudinal beam reinforcement beam 103, and the cross beam reinforcement beam 402 In order to ensure the overall weight, and to ensure the self-strength of the front fender crossbeam 42, the support beam 44, the front fender lower crossbeam 43, the longitudinal beam reinforcement beam 103, and the crossbeam reinforcement beam 402, the utility model requires that the front fender crossbeam 42, the support beam 44, the front fender lower crossbeam 43, the longitudinal beam reinforcement beam 103 and the crossbeam reinforcement beam 402 are all provided with a reinforcement plate body 1-1; the reinforcement plate body 1-1 acts as an internal reinforcement rib, which well ensures the self-strength of the front fender crossbeam 42, the support beam 44, the front fender lower crossbeam 43, the longitudinal beam reinforcement beam 103, and the crossbeam reinforcement beam 402.

[0066] Furthermore, in the present invention, the front fender cross beam 42, the support beam 44, the front fender lower cross beam 43, the longitudinal beam reinforcement beam 103, and the cross beam reinforcement beam 402 are all made of hollow aluminum profiles; the single wheel cover assembly 21 is a cast aluminum part; based on the above design, while the strength of each beam body can be well guaranteed, the weight of each component can be reduced, which is beneficial to the lightweight of the entire vehicle.

[0067] specific:

[0068] The automobile front cabin assembly disclosed by the utility model is mainly used for electric vehicles, and aims to meet the requirements of lightweighting of the entire vehicle.

[0069] The automobile front cabin assembly disclosed in the utility model mainly includes a longitudinal beam assembly 1, a wheel cover assembly 2 and a front fender assembly 4; the longitudinal beam assembly 1 includes two relatively distributed single-body longitudinal beam assemblies 1; the wheel cover assembly 2 includes two relatively distributed single-body wheel cover assemblies 21; the front fender assembly 4 includes a front fender crossbeam 42, a front fender lower crossbeam 43 and a support beam 44; a single-body wheel cover assembly 21 is provided on each single-body longitudinal beam assembly 1; the two ends of the front fender crossbeam 42 and the front fender lower crossbeam 43 are respectively connected to the two single-body wheel cover assemblies 21; the front fender crossbeam 42 is connected to the front fender lower crossbeam 43 through the support beam 44.

[0070] In the present invention, the front water trough cross beam 41 includes a hollow tube body surrounded by 6 side walls.

[0071] The single-body wheel cover assembly 21 is a cast aluminum part. This design can better control the vehicle body precision.

[0072] At the same time, in the present invention, each single wheel cover assembly 21 is provided with a plurality of opening grooves 201 , and such a configuration facilitates the subsequent connection with the front fender cross beam 42 and the front fender lower cross beam 43 .

[0073] In the present invention, the front baffle cross beam 42 and the front baffle lower cross beam 43 are connected by aluminum profile cross beams.

[0074] In the present invention, the front anti-collision beam assembly 3 includes a front anti-collision body 31 ; the front anti-collision body 31 is connected to the front longitudinal beam 101 through an energy absorption box 32 , and the energy absorption box 32 is connected to the front longitudinal beam 101 through a cover plate 33 .

[0075] In addition, in the utility model, the single-body wheel cover assembly 21 is formed by one-piece aluminum die-casting, and has a relatively complex structure. It is composed of a casting surface and several reinforcing ribs. Several installation positioning holes are reserved on the surface. Some holes can be installed with wire threaded sleeves to facilitate bolt connection of other parts. At the same time, a high-strength structural shape is formed, which can effectively resist side collision deformation.

[0076] By adopting integrated die-casting, the casting precision is greatly improved, which is more in line with the lightweight body structure.

[0077] In the present invention, the monolithic wheel cover assembly 21 is connected to the corresponding monolithic longitudinal beam assembly 1 by welding, and the monolithic wheel cover assembly 21 is also connected to the front gutter cross beam 41, the front fender cross beam 42 and the front fender lower cross beam by welding.

[0078] In the utility model, the front guard body 31; the front guard body 31 is connected to the front longitudinal beam 101 through the energy absorption box 32, and the energy absorption box 32 is connected to the front longitudinal beam 101 through the cover plate 33; the front guard body 31 is welded by aluminum profiles and aluminum plates, and the cover plate 33 is connected to the end of the single longitudinal beam assembly 1 by bolts; it is convenient for later collision replacement.

[0079] A longitudinal beam front end plate 102 is provided at the end of the single longitudinal beam assembly 1; the single longitudinal beam assembly 1 is welded to the longitudinal beam front section, and the front section of the front longitudinal beam 101 is provided with a plurality of mounting holes for convenient connection with other parts.

[0080] A longitudinal beam reinforcement beam 103 is provided inside the front longitudinal beam 101, and the two are connected by spot welding, which greatly improves the overall strength of the front cabin.

[0081] A beam reinforcement beam 402 is inserted into the internal cavity of the front baffle beam 42 to ensure the strength of the front baffle beam 42 .

[0082] At the same time, a support beam 44 is welded between the front baffle cross beam 42 and the front baffle lower cross beam, in order to ensure the strength between the two cross beams.

[0083] In the utility model, the front fender cross beam 42 is a day-type aluminum profile structure with space, which is connected to the single wheel cover assembly 21 on the left and right. The left side of the front fender cross beam 42 is grooved to form an avoidance groove 421, which is mainly used to avoid other parts. However, in order to prevent the strength of the groove from being insufficient, a cross beam reinforcement beam 402 is inserted inside to ensure the strength of the front fender cross beam 42.

[0084] The front anti-collision beam assembly 3 also includes: a front anti-collision body 31, left and right energy absorption boxes 32, and left and right energy absorption box cover plates. These parts are welded to form the front anti-collision beam assembly 3, which effectively increases the safety of the front cabin.

[0085] In order to simplify the structure of the front cabin of the vehicle body, the utility model utilizes a high-strength complex-section extruded aluminum profile structure to form a front cabin frame structure, and then realizes the integrity of the front cabin by adding aluminum plate stamping parts, so that the weight of the front cabin is reduced while ensuring the overall rigidity and strength.

[0086] The front cabin skeleton assembly is composed of a frame structure composed of profiles, and the profile frame structure mainly includes a front fender cross beam 42, a support beam 44, a front fender lower cross beam 43, a longitudinal beam reinforcement beam 103, a cross beam reinforcement beam 402 and a front longitudinal beam 101.

[0087] In the present invention, except for the front anti-collision beam assembly 3, other assemblies are mainly composed of multi-cavity aluminum profiles spliced ​​into a frame structure.

[0088] In order to meet the frontal collision strength requirements of the whole vehicle, reinforcing beams are inserted inside the front longitudinal beam 101 and the front fender cross beam 42, and the performance is reliable. At the same time, the single wheel cover assembly 21 is die-cast; the addition of castings ensures strength while achieving lightweight, and the one-piece die-casting greatly improves the casting accuracy.

[0089] The vehicle body frame front cabin assembly of the utility model is made of hollow aluminum profiles, which has a small overall weight, high strength, and better collision safety performance, which is conducive to lightweighting of electric vehicles and can effectively extend the cruising range of electric vehicles. Moreover, the casting is die-cast in one piece, has a simple structure, and good rigidity, thereby improving the rigidity performance of the front cabin assembly.

[0090] In the utility model, the front cabin assembly disclosed in the utility model is mainly suitable for new energy vehicles. The front cabin assembly disclosed in the utility model is mainly composed of an aluminum profile with a hollow interior and reinforcing ribs in the cavity and an integral die-cast aluminum casting assembled into an overall frame. The aluminum profile serves as the main load-bearing component, and is combined with a simple aluminum plate stamping as a closing plate, thereby reducing the mold development cycle and cost while achieving lightweight bodywork.

[0091] The one-piece die-cast aluminum casting has good molding degree, high precision, high strength and light weight.

[0092] like Figure 1As shown, the front cabin assembly mainly includes a monolithic wheel house assembly 21, a monolithic longitudinal beam assembly 1, a front anti-collision beam assembly 3, a front gutter cross beam 41, a front fender lower cross beam, a front fender cross beam 42, a support beam 44, and a front fender cross beam 42.

[0093] like Figure 2 As shown, a head-on collision places very high demands on the bending resistance of the front section of the front longitudinal beam 101 of the front cabin. In order to meet the collision safety requirements and improve the safety of the entire vehicle, the front cabin shock absorber tower adopts a cast aluminum structure.

[0094] At the same time, the single-body wheel cover assembly 21 is required to be provided with an open groove 201 to connect several main profiles of the front cabin frame. The front longitudinal beam 101 can be connected through the open groove 201, and the front longitudinal beam 101 and the single-body wheel cover assembly 21 slot interface are welded by molten inert gas shielded welding to ensure strength.

[0095] It can be connected to the lower cross beam 43 of the front baffle through the open groove 201, and the slot interface is welded by melt inert gas shielded welding; it can be connected to the front baffle cross beam 42 through the open groove 201, and the slot interface is welded by melt inert gas shielded welding; it can be connected to the front water flow trough cross beam 41 through the open groove 201, and the slot interface is welded by melt inert gas shielded welding.

[0096] In order to improve the strength of the installation point, multiple wire thread sleeve installation holes can be reserved to facilitate the subsequent installation of other bolt fasteners. This can not only ensure the strength of the installation point, but also improve the reliability of the disassembly of the installation point.

[0097] In the utility model, the single longitudinal beam assembly 1 includes a front longitudinal beam 101 and a longitudinal beam reinforcement beam 103; the front longitudinal beam 101 is a hollow profile formed by multiple side walls and raised reinforcement ribs arranged in the hollow tube body. The multi-cavity structure enhances the rigidity of the front longitudinal beam 101, and the high-rigidity front section of the front longitudinal beam 101 can improve the overall rigidity of the vehicle body.

[0098] The longitudinal beam reinforcement beam 103 is formed by extruding a simple aluminum profile, and its main function is to be inserted into the front end of the front longitudinal beam 101 to strengthen it, and to be spot-welded to the front section of the front longitudinal beam 101 through the spot welding holes on the front section of the front longitudinal beam 101.

[0099] The front fender cross beam 42 is a horizontal straight profile structure. The cross beam reinforcement beam 402 is inserted into the front fender cross beam 42 and connected by welding. The middle end of the front fender cross beam 42 is partially cut to avoid the steering column. The incision is sealed with a sealing plate and the cross beam reinforcement beam 402 is used to increase the strength.

[0100] Six elliptical raised reinforcement ribs are arranged inside the front longitudinal beam 101 to improve the strength of the profile.

[0101] Installation points are arranged on the profile to install other brackets or parts. The cross-section of the daily profile is simple and easy to process. It is stronger and lighter than the traditional steel front beam, which can meet the lightweight requirements of the whole vehicle.

[0102] The cross section of the front fender beam 42 is an irregular day-shaped one, which ensures rigidity while avoiding space. A concave groove is cut on the left side of the profile to avoid space, and a sealing plate is welded at the cut edge to prevent water leakage and reduce wind noise to achieve the overall NVH index. At the same time, it can isolate electrochemical corrosion, the structure is stable and reliable, and saves space under the front cabin.

[0103] The lower crossbeam of the front fender also adopts the Japanese-style cross section. The left and right ends are welded to the slots of the castings on both sides. The small grooves at the bottom of the cavity are used to install the nut plate. The profile surface is riveted and connected to other parts. In order to enhance the joint rigidity and improve the collision stability, welding is used at the joint.

[0104] The front water tank cross beam 41 is a polygonal aluminum profile, adopts a Japanese-shaped aluminum profile structure with a cavity, and is overlapped on the open grooves 201 of the left and right castings.

[0105] In order to increase the strength of the connecting joints, MIG welding is adopted; the front water tank cross beam 41 is mainly used for supporting the front water tank, and the upper surface is in contact with the front water tank, while forming a frame with the left and right castings, thereby ensuring the overall rigidity of the front cabin frame assembly.

[0106] The support beam 44 is an aluminum profile structure with a Japanese-shaped cross-section. It is a straight profile cut piece and has two vertical-shaped parts welded to the front cabin frame assembly. Its lower end is connected to the lower cross beam of the front fender, and its upper end is connected to the front fender cross beam 42. The profile section is connected to the cross beam surface to form a stable corner support structure.

[0107] The overall rigidity of the front cabin frame assembly is ensured.

[0108] Meanwhile, in the present invention, the longitudinal beam reinforcement beam 103 is a straight profile cut piece with a simple cross-sectional structure, which is inserted into the front longitudinal beam 101 and welded by spot welding, and its main function is to strengthen the front section strength of the front longitudinal beam 101 .

[0109] The cross beam reinforcement beam 402 is a straight profile cut piece, and its cross-sectional shape is similar to that of the front fender cross beam 42 . It is inserted into the front fender cross beam 42 and welded thereto, and its main function is to strengthen the strength of the front fender cross beam 42 .

[0110] The front end plate arranged at the end of the single longitudinal beam assembly 1 is made of aluminum plate after stamping and machining, with high precision. It has holes on it for rivet nuts. One side is welded to the front section of the front longitudinal beam 101, and the other side is connected to the front anti-collision beam assembly 3 by bolts. The screw connection is convenient for the later replacement of the front bumper.

[0111] The front anti-collision beam assembly 3 mainly includes a front anti-collision beam body 31 , left and right energy absorption boxes 32 and a front anti-collision beam cover plate 33 .

[0112] The front anti-collision beam assembly 3 is also made of welded aluminum profiles, which will not be described in detail here. The rear end is screwed to the front cabin assembly through a cover plate 33; when necessary, it can be switched to a steel front bumper connected to the front cabin frame assembly.

[0113] Obviously, the specific implementation of the present invention is not limited by the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A front cabin assembly of an automobile, characterized in that: Including longitudinal beam assembly, wheel cover assembly and front fender assembly; The longitudinal beam assembly includes two relatively distributed single-body longitudinal beam assemblies; The wheel cover assembly includes two relatively distributed single-body wheel cover assemblies; The front fender assembly includes a front fender cross beam, a front fender lower cross beam and a support beam; A monocoque wheelhouse assembly is provided on each monocoque longitudinal beam assembly; The two ends of the front fender cross beam and the front fender lower cross beam are respectively connected to two single-body wheel cover assemblies; the front fender cross beam is connected to the front fender lower cross beam through a support beam.

2. The automobile front compartment assembly according to claim 1, characterized in that: Each of the single-body wheel cover assemblies is provided with an open slot for inserting a front fender cross beam or a front fender lower cross beam.

3. The automobile front compartment assembly according to claim 1, characterized in that: Two support beams are arranged between the front baffle cross beam and the front baffle lower cross beam, and the two support beams are distributed in an eight-shaped shape.

4. The automobile front compartment assembly according to claim 1, characterized in that: The front fender assembly also includes a front water trough crossbeam whose two ends are respectively overlapped on the single wheel cover assembly; the vertical cross section of the front water trough crossbeam is a polygon.

5. The automobile front compartment assembly according to claim 1, characterized in that: The front baffle cross beam is provided with an avoidance groove; the front baffle cross beam has a cavity inside, and a cross beam reinforcement beam is provided inside the front baffle cross beam.

6. The automobile front compartment assembly according to claim 5, characterized in that: The single longitudinal beam assembly comprises a front longitudinal beam, the interior of the front longitudinal beam has a cavity, and a longitudinal beam reinforcement beam is arranged inside the front longitudinal beam.

7. The automobile front compartment assembly according to claim 6, characterized in that: The automobile front cabin assembly also includes a front anti-collision beam assembly; the front anti-collision beam assembly includes a front bumper body; the front bumper body is connected to the front longitudinal beam through an energy absorption box.

8. The automobile front compartment assembly according to claim 7, characterized in that: The energy absorption box is connected to the front longitudinal beam through a cover plate.

9. The automobile front compartment assembly according to claim 6, characterized in that: The front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all hollow inside; the front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all provided with reinforcement plates.

10. The automobile front compartment assembly according to claim 9, characterized in that: The front fender cross beam, support beam, front fender lower cross beam, longitudinal beam reinforcement beam, and cross beam reinforcement beam are all made of hollow aluminum profiles; the single wheel cover assembly is a cast aluminum part.

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