Longitudinal beam assembly of vehicle and vehicle

Abstract

The utility model discloses a longitudinal beam assembly of a vehicle and the vehicle, and relates to the field of vehicles, and the longitudinal beam assembly of the vehicle comprises a longitudinal beam body, the suspension mounting plate is arranged on the longitudinal beam body and shields the notch, the suspension mounting plate is provided with a plurality of mounting parts, and the mounting parts are suitable for being assembled with suspensions of the vehicle in a matched mode. Therefore, the suspension mounting plate is arranged on the longitudinal beam body and shields the notch, different suspension mounting plates can be replaced to adapt to different suspensions, the universality of the longitudinal beam body can be improved, the production cost and the research and development cost of a vehicle can be reduced, and in addition, due to the fact that the longitudinal beam body is provided with the notch, the longitudinal beam body is not prone to deformation. In addition, the suspension mounting plate is arranged on the longitudinal beam body and shields the notch, so that the longitudinal beam body can be matched with various suspension mounting plates, the longitudinal beam assembly can have good force transmission performance, and the safety of the vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a longitudinal beam component of a vehicle and the vehicle. Background Art

[0002] In the related art, the longitudinal beam structure of the vehicle provides a mounting point for the vehicle's suspension, but in order to adapt to different powertrains, the mounting point of the suspension needs to be replaced, thereby requiring the development of different longitudinal beam structures, resulting in poor versatility of the longitudinal beams and seriously increasing the production and R&D costs of the vehicle. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a longitudinal beam assembly of a vehicle, which can be adapted to different suspensions by replacing different suspension mounting plates and has high versatility.

[0004] The utility model further provides a vehicle.

[0005] According to the utility model, the longitudinal beam assembly of the vehicle includes: a longitudinal beam body, the longitudinal beam body has a notch; a suspension mounting plate, the suspension mounting plate is arranged on the longitudinal beam body and blocks the notch, the suspension mounting plate has a plurality of mounting portions, and the plurality of mounting portions are all suitable for being assembled with the suspension of the vehicle.

[0006] According to the longitudinal beam assembly of the vehicle of the utility model, by providing the suspension mounting plate on the longitudinal beam body and covering the gap, different suspension mounting plates can be replaced to adapt to different suspensions, thereby increasing the versatility of the longitudinal beam body, which is beneficial to reducing the production cost and research and development cost of the vehicle. In addition, since the longitudinal beam body has a gap and the suspension mounting plate is provided on the longitudinal beam body and covers the gap, not only can the longitudinal beam body be adapted to various suspension mounting plates, but also the longitudinal beam assembly can have better force transmission performance, which is beneficial to improving the safety of the vehicle.

[0007] In some examples of the present invention, the suspended mounting plate includes a first part and a second part, the upper surface of the first part is parallel to the horizontal plane, the upper surface of the second part has an angle with the horizontal plane, and the first part and the second part are both provided with the mounting portion.

[0008] In some examples of the present invention, the first part and the second part are arranged in sequence along the extension direction of the longitudinal beam body.

[0009] In some examples of the present invention, the second portion gradually slopes downward from the outer side of the vehicle to the inner side of the vehicle.

[0010] In some examples of the present invention, the mounting portion includes: a first mounting portion and a second mounting portion, the first mounting portion is configured as a first mounting hole, the first mounting hole passes through the first part, and the second mounting portion is configured as a second mounting hole, the second mounting hole passes through the second part.

[0011] In some examples of the present invention, the suspended mounting plate further includes: a third portion and a first arc segment, the third portion is located on a side of the first portion away from the second portion, and the first arc segment is connected between the third portion and the first portion.

[0012] In some examples of the present invention, the upper surface of the third portion gradually slopes downward from a direction where the first portion is away from the second portion to a direction where the first portion is close to the second portion.

[0013] In some examples of the present invention, the suspended mounting plate further includes: a fourth portion and a second arc segment, the fourth portion is located on a side of the second portion away from the first portion, and the second arc segment is connected between the fourth portion and the second portion.

[0014] In some examples of the present invention, the longitudinal beam body includes: a longitudinal beam outer plate and a longitudinal beam inner plate, the longitudinal beam outer plate and the longitudinal beam inner plate are connected and jointly define a cavity, the longitudinal beam inner plate has the notch, and the notch is connected to the cavity.

[0015] The vehicle according to the utility model comprises the above-mentioned longitudinal beam assembly of the vehicle.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the assembly of the longitudinal beam assembly and the suspension according to the embodiment of the utility model;

[0019] Figure 2 is a schematic diagram of a longitudinal beam assembly according to an embodiment of the utility model (suspension omitted);

[0020] Figure 3 is a schematic diagram of a longitudinal beam assembly according to an embodiment of the utility model (with suspension and suspension mounting plate omitted);

[0021] Figure 4It is a schematic diagram of a suspension mounting plate according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] Longitudinal beam assembly 100; shock tower 99; suspension 98;

[0024] Longitudinal beam body 10; longitudinal beam inner plate 11; notch 111; longitudinal beam outer plate 12; cavity 13;

[0025] Suspension mounting plate 20; mounting portion 21; first mounting portion 211; second mounting portion 212;

[0026] Plate body 22; first part 221; second part 222; third part 223; flange 23; fourth part 231;

[0027] A first arc segment 31 ; a second arc segment 32 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] Reference below Figure 1-Figure 4 A longitudinal beam assembly 100 of a vehicle according to an embodiment of the present invention is described.

[0030] like Figure 1-Figure 4 As shown, the longitudinal beam assembly 100 according to the embodiment of the present invention includes: a longitudinal beam body 10 and a suspension mounting plate 20 .

[0031] The longitudinal beam body 10 has a notch 111 ; the suspension mounting plate 20 is disposed on the longitudinal beam body 10 and covers the notch 111 , and the suspension mounting plate 20 has a plurality of mounting portions 21 , and the plurality of mounting portions 21 are all suitable for being assembled with the suspension 98 of the vehicle.

[0032] The longitudinal beam body 10 is arranged along the longitudinal direction of the longitudinal beam assembly 100 of the vehicle (ie Figure 2 The longitudinal beam body 10 has a notch 111, and the notch 111 can be arranged along the height direction (ie, the X direction) of the longitudinal beam assembly 100 of the vehicle. Figure 2 The Z direction shown) is open upward.

[0033] The suspension mounting plate 20 is arranged on the longitudinal beam body 10, and the suspension mounting plate 20 can cover the gap 111. The suspension mounting plate 20 and the longitudinal beam body 10 are connected in a manner including but not limited to welding, bolt connection, etc. As some embodiments of the present application, the suspension mounting plate 20 and the longitudinal beam body 10 are connected by welding.

[0034] The suspension mounting plate 20 has a plurality of mounting portions 21, that is, the number of the mounting portions 21 may be, but is not limited to, two, three, four, etc. As some embodiments of the present application, the number of the mounting portions 21 is two. The plurality of mounting portions 21 can be assembled with the suspension 98 of the vehicle, and the suspension 98 of the vehicle provides a mounting point for the powertrain of the vehicle, and the suspension 98 of the vehicle can also limit the displacement of the powertrain.

[0035] As some embodiments of the present application, the mounting portion 21 is configured as a mounting hole, the suspension 98 of the vehicle has a through hole, and the mounting portion 21 is assembled with the through hole of the suspension 98 by bolt connection.

[0036] As some embodiments of the present application, weight-reducing holes and electrophoresis holes are provided on the suspension mounting plate 20 .

[0037] As some embodiments of the present application, the powertrain may be, but is not limited to, a PHEV powertrain, a FCEV powertrain, and the like.

[0038] It should be noted that, by making the longitudinal beam assembly 100 include the longitudinal beam body 10 and the suspension mounting plate 20, the mounting point of the suspension 98 can be transferred from the longitudinal beam body 10 to the suspension mounting plate 20, thereby reducing the difficulty of producing the longitudinal beam body 10. Moreover, when it is necessary to adapt the longitudinal beam assembly 100 to different suspensions 98 to adapt to different powertrains, the suspension mounting plate 20 can be replaced without redeveloping the longitudinal beam body 10, thereby increasing the versatility of the longitudinal beam body 10, which is conducive to reducing the production cost and R&D cost of the vehicle. Moreover, since the longitudinal beam body 10 has a notch 111, the longitudinal beam body 10 can be adapted to various suspension mounting plates 20, and the longitudinal beam assembly 100 can have better force transmission performance.

[0039] Therefore, by providing the suspension mounting plate 20 on the longitudinal beam body 10 and covering the gap 111, different suspension mounting plates 20 can be replaced to adapt to different suspensions 98, thereby increasing the versatility of the longitudinal beam body 10, which is beneficial to reducing the production cost and R&D cost of the vehicle. In addition, since the longitudinal beam body 10 has the gap 111 and the suspension mounting plate 20 is provided on the longitudinal beam body 10 and covers the gap 111, not only can the longitudinal beam body 10 be adapted to various suspension mounting plates 20, but also the longitudinal beam assembly 100 can have better force transmission performance, which is beneficial to improving the safety of the vehicle.

[0040] As some embodiments of the present application, the height of the multiple mounting portions 21 of the suspension mounting plate 20 can be different from the height of the upper surface of the longitudinal beam body 10, so that the longitudinal beam body 10 can avoid peripheral parts such as air spring packages, tire packages, engine packages and gearbox packages.

[0041] In some embodiments of the present invention, Figure 4 As shown, the suspension mounting plate 20 includes a first portion 221 and a second portion 222 . The upper surface of the first portion 221 is parallel to the horizontal plane, and the upper surface of the second portion 222 has an angle with the horizontal plane. Both the first portion 221 and the second portion 222 are provided with a mounting portion 21 .

[0042] The suspension mounting plate 20 includes a first portion 221 and a second portion 222. As some embodiments of the present application, the suspension mounting plate 20 includes a first portion 221 and a second portion 222. Figure 2 In other words, the first part 221 is closer to the front of the vehicle, and the upper surface of the first part 221 is parallel to the horizontal plane, that is, the upper surface of the first part 221 is a plane, and the upper surface of the second part 222 has an angle with the horizontal plane, that is, the upper surface of the second part 222 has an angle with the upper surface of the first part 221, and the first part 221 and the second part 222 are both provided with a mounting portion 21. As some embodiments of the present application, the first part 221 and the second part 222 are both provided with a mounting portion 21.

[0043] It should be noted that, considering the development cost of suspension 98, planning suspension 98 to be common with other projects requires that the mounting surface of at least one mounting point of suspension 98 be a horizontal plane. By making the upper surface of the first part 221 a plane, the first part 221 can be adapted to suspension 98 to meet the installation requirements of suspension 98, thereby making suspension 98 common with other projects and reducing the development cost of suspension 98.

[0044] By making the upper surface of the second part 222 have an angle with the horizontal plane, the mounting portion 21 of the second part 222 can have an angle with the horizontal plane, thereby reducing the probability of interference between the installation tool and the structure directly above the second part 222 (such as the shock tower 99) when the suspension 98 is assembled with the mounting portion 21 of the second part 222, thereby reducing the difficulty of installing the suspension 98 and helping to improve the structural rationality of the vehicle's longitudinal beam assembly 100.

[0045] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, along the extension direction of the longitudinal beam body 10 , the first portion 221 and the second portion 222 are arranged in sequence.

[0046] The longitudinal beam body 10 extends in the direction of the longitudinal beam assembly 10, that is, along the length direction of the longitudinal beam assembly 100 of the vehicle (i.e. Figure 2 The first portion 221 and the second portion 222 are arranged in sequence. As some embodiments of the present application, the first portion 221 is in front of the second portion 222. In other words, the first portion 221 is closer to the front of the vehicle.

[0047] By arranging the first part 221 and the second part 222 in sequence along the extension direction of the longitudinal beam body 10, the first part 221 and the second part 222 can be reasonably positioned to meet the installation requirements of the suspension 98, thereby making the suspension 98 common with other projects and reducing the development cost of the suspension 98.

[0048] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the second portion 222 gradually slopes downward from the vehicle outer side to the vehicle inner side.

[0049] Among them, along the width direction of the longitudinal beam assembly 100 of the vehicle (ie Figure 2 The second portion 222 gradually tilts downward from the outside of the vehicle to the inside of the vehicle, so that the upper surface of the second portion 222 has an angle with the horizontal plane.

[0050] By gradually tilting the second part 222 downward, the arrangement of the second part 222 can be made reasonable. When installing the suspension 98, the probability of interference between the installation tool and the structure directly above the second part 222 (such as the shock tower 99) can be reduced, thereby reducing the difficulty of installing the suspension 98 and helping to improve the structural rationality of the vehicle's longitudinal beam assembly 100.

[0051] In some embodiments of the present invention, Figure 4 As shown, the mounting portion 21 includes: a first mounting portion 211 and a second mounting portion 212 , the first mounting portion 211 is configured as a first mounting hole that passes through the first portion 221 , and the second mounting portion 212 is configured as a second mounting hole that passes through the second portion 222 .

[0052] Among them, the mounting part 21 includes a first mounting part 211 and a second mounting part 212. As some embodiments of the present application, the mounting part 21 of the first part 221 is the first mounting part 211, and the mounting part 21 of the second part 222 is the second mounting part 212. The first mounting part 211 is configured as a first mounting hole, and the first mounting hole passes through the first part 221, that is, the first mounting hole is a through hole and passes through the suspension mounting plate 20. The second mounting part 212 is configured as a second mounting hole, and the second mounting hole passes through the second part 222, that is, the second mounting hole is a through hole and passes through the suspension mounting plate 20.

[0053] By configuring the first mounting portion 211 as a first mounting hole and the second mounting portion 212 as a second mounting hole, and configuring the first mounting hole to pass through the first portion 221 and the second mounting hole to pass through the second portion 222, the suspension 98 can be installed on the longitudinal beam assembly 100 by passing bolts through the suspension 98 and the corresponding mounting portion 21, thereby facilitating the assembly of the vehicle suspension 98.

[0054] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the suspension mounting plate 20 further includes: a third portion 223 and a first arc segment 31 . The third portion 223 is located on a side of the first portion 221 away from the second portion 222 . The first arc segment 31 is connected between the third portion 223 and the first portion 221 .

[0055] The suspension mounting plate 20 further includes a third portion 223 and a first arc segment 31. The first portion 221 has two opposite sides, one side of which is close to the second portion 222 and the other side is far from the second portion 222. The third portion 223 is located on the side of the first portion 221 far from the second portion 222. The first arc segment 31 is connected between the third portion 223 and the first portion 221. As some embodiments of the present application, along the length direction (i.e., Figure 2 In the X direction shown in FIG. 2 and from the front to the rear, the third portion 223, the first arc segment 31, the first portion 221, and the second portion 222 are arranged in sequence.

[0056] By locating the third portion 223 on the side of the first portion 221 away from the second portion 222 and connecting the first arc segment 31 between the third portion 223 and the first portion 221, the longitudinal beam assembly 100 can have a good force transmission path, thereby reducing the probability and amplitude of bending of the longitudinal beam assembly 100 during a vehicle collision, which is beneficial to improving the safety performance of the vehicle.

[0057] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the upper surface of the third portion 223 gradually slopes downward from the direction from the first portion 221 away from the second portion 222 to the direction close to the second portion 222 .

[0058] Along the length direction of the longitudinal beam assembly 100 of the vehicle (ie Figure 2 In the X direction shown in the figure, the upper surface of the third portion 223 gradually slopes downward from the direction from the first portion 221 away from the second portion 222 to the direction close to the second portion 222.

[0059] By gradually tilting the upper surface of the third portion 223 downward and connecting the third portion 223 and the first portion 221 via the first arc segment 31, the longitudinal beam assembly 100 can have a good and stable force transmission path, further reducing the probability and magnitude of bending of the longitudinal beam assembly 100 during a vehicle collision.

[0060] As some embodiments of the present application, the height of the multiple mounting portions 21 of the suspension mounting plate 20 can be different from the height of the upper surface of the longitudinal beam body 10, so that the longitudinal beam body 10 can avoid peripheral parts such as the air spring package, tire package, engine package and gearbox package, and by locating the third part 223 on the side of the first part 221 away from the second part 222, and connecting the first arc segment 31 between the third part 223 and the first part 221, and gradually tilting the upper surface of the third part 223 downward, the force transmission channel of the longitudinal beam assembly 100 can be reasonably designed, so that the longitudinal beam assembly 100 can effectively withstand the collision energy and transfer the collision energy to other vehicle body structural parts (such as door sill beams, A-pillars, etc.).

[0061] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the suspension mounting plate 20 further includes: a fourth portion 231 and a second arc segment 32 , the fourth portion 231 is located on a side of the second portion 222 away from the first portion 221 , and the second arc segment 32 is connected between the fourth portion 231 and the second portion 222 .

[0062] Among them, the suspension mounting plate 20 also includes a fourth part 231 and a second arc segment 32, the second part 222 has two opposite sides, one side is close to the first part 221, and the other side is far away from the first part 221, the fourth part 231 is located on the side of the second part 222 away from the first part 221, and the second arc segment 32 is connected between the fourth part 231 and the second part 222.

[0063] As some embodiments of the present application, the fourth portion 231 is arranged along the height direction (ie, Figure 2 The fourth portion 231 is perpendicular to the horizontal plane. As some embodiments of the present application, along the length direction (i.e., the Z direction) of the longitudinal beam assembly 100 of the vehicle, Figure 2 In the X direction shown in the figure, and from the front to the rear, the third portion 223, the first arc segment 31, the first portion 221, the second portion 222, the second arc segment 32, and the fourth portion 231 are arranged in sequence.

[0064] As some embodiments of the present application, the suspended mounting plate 20 includes a plate body 22 and a flange 23 , wherein the plate body 22 includes a first portion 221 , a second portion 222 and a third portion 223 , and the flange 23 includes a fourth portion 231 .

[0065] By locating the fourth portion 231 on the side of the second portion 222 away from the first portion 221 and connecting the second arc segment 32 between the fourth portion 231 and the second portion 222 , the vehicle longitudinal beam assembly 100 can have a good force transmission path, which is beneficial to the safety performance of the vehicle.

[0066] In some embodiments of the present invention, Figure 3 As shown, the longitudinal beam body 10 includes: a longitudinal beam outer plate 12 and a longitudinal beam inner plate 11 , the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 are connected and jointly define a cavity 13 , and the longitudinal beam inner plate 11 has a notch 111 , which is communicated with the cavity 13 .

[0067] The longitudinal beam body 10 includes a longitudinal beam outer plate 12 and a longitudinal beam inner plate 11. As some embodiments of the present application, the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 are both manufactured by stamping. The longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 are connected and arranged. The connection method of the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 can be but not limited to welding, bolt connection, etc. As some embodiments of the present application, the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 are connected by welding. In addition, the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 jointly define a cavity 13, and the longitudinal beam inner plate 11 has a notch 111, and the notch 111 is connected to the cavity 13.

[0068] By making the longitudinal beam body 10 include the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11, the difficulty of manufacturing the longitudinal beam body 10 can be reduced. By making the longitudinal beam outer plate 12 and the longitudinal beam inner plate 11 jointly define the cavity 13, the longitudinal beam assembly 100 can collapse and absorb energy during a vehicle collision, thereby reducing the collision intensity, which is beneficial to the safety performance of the longitudinal beam assembly 100. By making the longitudinal beam inner plate 11 have a notch 111 connected to the cavity 13, the setting position of the notch 111 can be reasonably set, thereby making the setting position of the suspension mounting plate 20 reasonable, and further making the setting position of the suspension 98 reasonable.

[0069] According to the vehicle of the embodiment of the utility model, including the longitudinal beam assembly 100 of the vehicle of the above-mentioned embodiment, by having the suspension mounting plate 20 disposed on the longitudinal beam body 10 and blocking the gap 111, different suspension mounting plates 20 can be replaced to adapt to different suspensions 98, thereby increasing the versatility of the longitudinal beam body 10, which is beneficial to reducing the production cost and research and development cost of the vehicle. In addition, since the longitudinal beam body 10 has the gap 111, and the suspension mounting plate 20 is disposed on the longitudinal beam body 10 and blocks the gap 111, not only can the longitudinal beam body 10 be adapted to various suspension mounting plates 20, but also the longitudinal beam assembly 100 can have better force transmission performance, which is beneficial to improving the safety of the vehicle.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0072] In the description of the present invention, "plurality" means two or more.

[0073] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0074] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A longitudinal beam assembly (100) of a vehicle, characterized in that: include: A longitudinal beam body (10), wherein the longitudinal beam body (10) has a notch (111); A suspension mounting plate (20), the suspension mounting plate (20) being arranged on the longitudinal beam body (10) and covering the notch (111), the suspension mounting plate (20) having a plurality of mounting portions (21), and the plurality of mounting portions (21) are all suitable for being assembled with the suspension (98) of the vehicle.

2. The longitudinal beam assembly (100) of a vehicle according to claim 1, characterized in that: The suspended mounting plate (20) comprises a first part (221) and a second part (222); the upper surface of the first part (221) is parallel to a horizontal plane, the upper surface of the second part (222) has an angle with the horizontal plane, and the first part (221) and the second part (222) are both provided with the mounting portion (21).

3. The longitudinal beam assembly (100) of a vehicle according to claim 2, characterized in that: Along the extension direction of the longitudinal beam body (10), the first part (221) and the second part (222) are arranged in sequence.

4. The longitudinal beam assembly (100) of a vehicle according to claim 2, characterized in that: The second portion (222) gradually slopes downward from the vehicle outer side to the vehicle inner side.

5. The longitudinal beam assembly (100) of a vehicle according to claim 2, characterized in that: The mounting portion (21) comprises: a first mounting portion (211) and a second mounting portion (212); the first mounting portion (211) is configured as a first mounting hole, the first mounting hole passes through the first portion (221); the second mounting portion (212) is configured as a second mounting hole, the second mounting hole passes through the second portion (222).

6. The longitudinal beam assembly (100) of a vehicle according to claim 2, characterized in that: The suspension mounting plate (20) further comprises: a third portion (223) and a first arc segment (31), wherein the third portion (223) is located on a side of the first portion (221) away from the second portion (222), and the first arc segment (31) is connected between the third portion (223) and the first portion (221).

7. The longitudinal beam assembly (100) of a vehicle according to claim 6, characterized in that: The upper surface of the third portion (223) gradually slopes downward from the direction where the first portion (221) is away from the second portion (222) to the direction where it is close to the second portion (222).

8. The longitudinal beam assembly (100) of a vehicle according to claim 2, characterized in that: The suspended mounting plate (20) further comprises: a fourth portion (231) and a second arc segment (32), wherein the fourth portion (231) is located on a side of the second portion (222) away from the first portion (221), and the second arc segment (32) is connected between the fourth portion (231) and the second portion (222).

9. The longitudinal beam assembly (100) of a vehicle according to any one of claims 1 to 8, characterized in that: The longitudinal beam body (10) comprises: a longitudinal beam outer plate (12) and a longitudinal beam inner plate (11); the longitudinal beam outer plate (12) and the longitudinal beam inner plate (11) are connected and jointly define a cavity (13); the longitudinal beam inner plate (11) has the notch (111); and the notch (111) is in communication with the cavity (13).

10. A vehicle, characterized in that: A longitudinal beam assembly (100) for a vehicle comprising the method according to any one of claims 1-9.

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