Cross beam assembly of vehicle cabin, vehicle cabin assembly and vehicle

Abstract

The utility model provides a cross beam assembly of a vehicle cabin, a vehicle cabin assembly and a vehicle, the cross beam assembly of the vehicle cabin comprises two supporting cross beams, and the two supporting cross beams are in one-to-one correspondence with two shock absorber mounting seats on the cabin; all the supporting cross beams extend in the direction from the vehicle head to the vehicle tail of the vehicle, and at least one supporting cross beam is obliquely arranged in the direction close to the other supporting cross beam; in the direction from the vehicle head to the vehicle tail, each supporting cross beam is provided with a front end and a tail end which are opposite, the front ends of the two supporting cross beams are used for being connected with the corresponding shock absorber installation bases respectively, the tail ends of the two supporting cross beams are connected, and the connecting position of the tail ends of the two supporting cross beams is used for being connected with a cabin. Therefore, the cabin is supported in the front-back direction and the left-right direction through the supporting cross beams, the rigidity and strength of the cabin are improved, and the control stability and safety of a vehicle are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a crossbeam assembly for a vehicle engine compartment, a vehicle engine compartment assembly and a vehicle. Background Art

[0002] A vehicle includes an engine compartment, and there are two wheels at the engine compartment. Shock absorbers are respectively connected between the two wheels and the engine compartment. The shock absorbers can buffer the vibration of the vehicle during driving.

[0003] Among them, generally two shock absorber mounts are arranged on the engine compartment, and the two shock absorber mounts correspond to the two wheels one by one. Each shock absorber is connected to the engine compartment through the corresponding shock absorber mount. However, in the related art, the engine compartment is prone to deformation when impacted at the shock absorber mount, thereby affecting the handling stability and safety of the whole vehicle. Summary of the Utility Model

[0004] In view of this, the embodiments of the utility model are committed to providing a crossbeam assembly for a vehicle engine compartment, a vehicle engine compartment assembly and a vehicle to improve the handling stability and safety of the vehicle.

[0005] In a first aspect, the utility model provides a crossbeam assembly for a vehicle engine compartment, including two support crossbeams, and the two support crossbeams correspond to the two shock absorber mounts on the engine compartment one by one;

[0006] Each of the support crossbeams extends along the direction from the head to the tail of the vehicle, and at least one of the support crossbeams is inclined towards the direction close to the other support crossbeam;

[0007] In the direction from the head to the tail of the vehicle, the support crossbeam has opposite front end and tail end. The front ends of the two support crossbeams are respectively used for connecting with the corresponding shock absorber mounts, the tail ends of the two support crossbeams are connected, and the connection part of the tail ends of the two support crossbeams is used for connecting with the engine compartment.

[0008] Optionally, in the direction from the head to the tail of the vehicle, the two support crossbeams extend obliquely towards the direction of approaching each other.

[0009] Optionally, the included angle between the projection of the support crossbeam on the horizontal plane and the connection line of the connection points of the two shock absorber mounts and the engine compartment is between 20° and 30°;

[0010] And / or, the two support crossbeams are symmetrically arranged about a symmetry axis, and the symmetry axis is the perpendicular bisector of the connection line of the connection points of the two shock absorber mounts and the engine compartment;

[0011] And / or, the included angle between the projection of the support crossbeam on the vertical plane and the connection line of the connection points of the two shock absorber mounts and the nacelle is between 5° and 15°.

[0012] Optionally, a first mounting portion is provided on the support crossbeam, and the first mounting portion is used to cooperate with a second mounting portion on the shock absorber mount to detachably connect the support crossbeam to the shock absorber mount;

[0013] The first mounting portion includes a first mounting hole, the second mounting portion includes a second mounting hole, and the support crossbeam is connected to the shock absorber mount by a first fastener passing through the first mounting hole and the second mounting hole.

[0014] Optionally, the support crossbeam has a first cavity, and a first reinforcing member is arranged in the first cavity;

[0015] The support crossbeam includes a main body wall, a first side wall and a second side wall, the first side wall and the second side wall are oppositely arranged, and the main body wall is connected between the first side wall and the second side wall to jointly enclose the first cavity; and / or, the first reinforcing member is integrally formed with the support crossbeam; and / or, the first reinforcing member includes at least two first reinforcing segments connected end to end in sequence, and an included angle is formed between two adjacent first reinforcing segments.

[0016] Optionally, the tails of the two support crossbeams are connected by an intermediate support beam, and the intermediate support beam is used to connect to the nacelle.

[0017] Optionally, a first fixing portion is provided on the intermediate support beam, and the first fixing portion is used to cooperate with a second fixing portion on the nacelle to detachably connect the intermediate support beam to the nacelle;

[0018] The first fixing portion includes a first fixing hole, the second fixing portion includes a second fixing hole, and the intermediate support beam is connected to the nacelle by a second fastener passing through the first fixing hole and the second fixing hole; and / or, there are at least two first fixing portions, at least two first fixing portions are arranged at intervals on the intermediate support beam, there are at least two second fixing portions, and the second fixing portions are arranged in one-to-one correspondence with the first fixing portions.

[0019] Optionally, the intermediate support beam includes a first beam body, two ends of the first beam body are respectively connected to the tails of the two support crossbeams, and the first beam body protrudes in a direction away from the shock absorber mount, and the first beam body is used to connect to the nacelle;

[0020] The middle support beam further includes a second beam body, the second beam body is arranged on a side of the first beam body facing the shock absorber mounting seat, two ends of the second beam body are respectively connected to the tail ends of the two support cross beams, and a gap is formed between the second beam body and the first beam body.

[0021] Optionally, a second reinforcing member is arranged on the middle support beam;

[0022] At least part of the second reinforcing member is arranged near the connection position between the middle support beam and the engine nacelle; and / or, the second reinforcing member is integrally formed with the middle support beam.

[0023] Optionally, the middle support beam has a second cavity, and a third reinforcing member is arranged in the second cavity;

[0024] The third reinforcing member includes at least two second reinforcing segments connected end to end in sequence, and an included angle is formed between two adjacent second reinforcing segments;

[0025] and / or, the middle support beam and the support cross beam are integrally formed;

[0026] and / or, the middle support beam is a cast aluminum beam;

[0027] and / or, the support cross beam is a cast aluminum beam;

[0028] and / or, the joint between the middle support beam and the support cross beam has a smooth transition.

[0029] Optionally, a water chute assembly is provided on the engine nacelle, and the tail ends of the two support cross beams are respectively used for connecting with the water chute assembly;

[0030] The water chute assembly includes a water chute body and a fourth reinforcing member connected to the water chute body;

[0031] The tail ends of the two support cross beams are respectively used for connecting with the water chute body, and the connection positions between the tail ends of the two support cross beams and the water chute body correspond to at least part of the fourth reinforcing member.

[0032] Optionally, a fixing part is arranged on the support cross beam and / or the middle support beam, and the fixing part is used for fixing a preset component on the vehicle;

[0033] The fixing part includes a substrate arranged at the edge of the support cross beam and / or the middle support beam and a third fixing hole arranged on the substrate; the third fixing hole is used for fixing the preset component;

[0034] The substrate is integrally formed with the support cross beam and / or the middle support beam.

[0035] In a second aspect, the present utility model provides a vehicle engine compartment assembly, comprising an engine compartment, a shock absorber mounting seat, and a crossbeam assembly of the vehicle engine compartment as described above.

[0036] In a third aspect, the present utility model provides a vehicle, comprising a crossbeam assembly of the vehicle engine compartment as described above;

[0037] Alternatively, the vehicle comprises a vehicle engine compartment assembly as described above.

[0038] Optionally, two suspensions are provided between the wheels of the vehicle and the shock absorber mounting seats, and the two suspensions respectively correspond to the two shock absorber mounting seats one by one;

[0039] The suspension is a double-wishbone suspension.

[0040] The crossbeam assembly of the vehicle engine compartment, the vehicle engine compartment assembly, and the vehicle provided by the present utility model, by providing two support crossbeams, making the two support crossbeams correspond to the two shock absorber mounting seats on the engine compartment one by one, and making each support crossbeam extend in the direction from the head to the tail of the vehicle, and making at least one of the support crossbeams inclined towards the direction close to the other support crossbeam; in the direction from the head to the tail of the vehicle, the support crossbeam has opposite front and rear ends, connecting the front ends of the two support crossbeams to the corresponding shock absorber mounting seats respectively, connecting the rear ends of the two support crossbeams, and connecting the connection part of the rear ends of the two support crossbeams to the engine compartment. In this way, because at least one of the crossbeams is inclined towards the direction close to the other support crossbeam, when the shock absorber mounting seat is subjected to a lateral impact force or a forward impact force, the impact force can be transmitted and dispersed through the crossbeam assembly, and the crossbeam assembly can simultaneously support the engine compartment in the left-right direction along the vehicle width direction and the front-rear direction along the vehicle length direction, thereby improving the stiffness and strength of the engine compartment, enhancing the ability of the engine compartment to resist external impacts, strengthening the stability of the engine compartment, and further improving the yaw and torsional modes of the vehicle body. In particular, the stability and accuracy of the vehicle when driving on curved roads or uneven road surfaces and other road conditions are improved, thereby improving the handling stability of the vehicle and the cornering performance of the vehicle, and enhancing the driving safety of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of the crossbeam assembly of the vehicle engine compartment according to an embodiment of the present utility model installed on the engine compartment;

[0042] Figure 2 is a schematic diagram of the force transmission path between the crossbeam assembly and the engine compartment when the shock absorber mounting seat is subjected to a lateral impact according to an embodiment of the present utility model;

[0043] Figure 3Schematic diagram of the force transmission path between the crossbeam assembly and the engine compartment when the shock absorber mounting seat according to an embodiment of the present utility model is subjected to a positive impact;

[0044] Figure 4 Partial front view structural schematic diagram of the crossbeam assembly of the vehicle engine compartment after being mounted on the engine compartment according to an embodiment of the present utility model;

[0045] Figure 5 Structural schematic diagram of the crossbeam assembly of the vehicle engine compartment according to an embodiment of the present utility model Figure 1 ;

[0046] Figure 6 Structural schematic diagram of the crossbeam assembly of the vehicle engine compartment according to an embodiment of the present utility model Figure 2 ;

[0047] Figure 7 Schematic diagram of the structure in which the intermediate support beam and the water trough assembly are connected according to an embodiment of the present utility model;

[0048] Figure 8 Partial structural schematic diagram of the water trough assembly according to an embodiment of the present utility model.

[0049] Wherein, 10, crossbeam assembly; 1, support crossbeam; 11, front end; 12, tail end; 13, first mounting portion; 14, first cavity; 141, first reinforcing member; 142, first reinforcing section; 15, main body wall; 16, first side wall; 17, second side wall; 2, intermediate support beam; 21, first fixing portion; 22, first beam body; 23, second beam body; 24, gap; 25, second reinforcing member; 26, second cavity; 261, third reinforcing member; 262, second reinforcing section; 3, first fastener; 4, second fastener; 5, fixing portion; 51, base plate; 52, third fixing hole; 20, engine compartment; 201, water trough assembly; 202, water trough body; 203, fourth reinforcing member; 30, shock absorber mounting seat; 301, shock absorber. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0051] The vehicle includes an engine compartment, where there are two wheels. A shock absorber is respectively connected between each of the two wheels and the engine compartment. The shock absorber can buffer the vibrations of the vehicle during driving. Generally, two shock absorber mounts are provided on the engine compartment. The two shock absorber mounts correspond to the two wheels one by one, and each shock absorber is connected to the engine compartment through the corresponding shock absorber mount.

[0052] However, in the related art, the shock absorber mount may be subjected to impacts. For example, when the vehicle is driving on a curve or the like, the shock absorber mount may be subjected to a lateral impact in the vehicle width direction. Another example is that when the vehicle is driving on an uneven road surface, the shock absorber mount may be subjected to a forward impact extending in the direction from the front to the rear of the vehicle. If the shock resistance effect of the shock absorber mount is poor, it will cause the engine compartment to be easily deformed, thus affecting the handling stability and safety of the whole vehicle.

[0053] Based on this, the embodiments of the present invention provide a crossbeam assembly for a vehicle engine compartment, a vehicle engine compartment assembly, and a vehicle. By providing two support crossbeams extending in the direction from the front to the rear of the vehicle, and making at least one of the support crossbeams extend obliquely towards the other support crossbeam, the front ends of the two support crossbeams are respectively connected to a shock absorber mount, and the connection part of the rear ends of the two support crossbeams is connected to the engine compartment, thereby realizing the left - right support of the engine compartment in the vehicle width direction and the front - rear support in the vehicle length direction, improving the stiffness and strength of the engine compartment, enabling the engine compartment to resist the impact force received by the shock absorber mount, and ensuring the handling stability and safety of the vehicle.

[0054] The following will, with reference to the accompanying drawings, through specific embodiments, elaborate in detail on the crossbeam assembly for a vehicle engine compartment, the vehicle engine compartment assembly, and the vehicle provided by the present invention:

[0055] Refer to Figures 1 to 7 As shown, this embodiment provides a crossbeam assembly for a vehicle engine compartment (hereinafter simply referred to as the crossbeam assembly) for a vehicle. Exemplarily, the vehicle can be, for example, a new - energy vehicle, a fuel - powered vehicle, etc.

[0056] Among them, the vehicle may include an engine compartment 20, where there are two wheels (such as front wheels). A shock absorber 301 is respectively connected between each of the two wheels and the engine compartment 20. The shock absorber 301 can buffer the vibrations of the vehicle during driving. Generally, two shock absorber mounts 30 are also provided on the engine compartment 20. The two shock absorber mounts 30 correspond to the two wheels one by one, and the shock absorber 301 is connected to the engine compartment 20 through the shock absorber mount 30.

[0057] Specifically, the crossbeam assembly 10 includes two support crossbeams 1, and the two support crossbeams 1 correspond to the two shock absorber mounting seats 30 one by one. Among them, each support crossbeam 1 extends along the direction from the head to the tail of the vehicle, and at least one of the support crossbeams 1 is inclined towards the direction close to the other support crossbeam 1. Among them, the direction from the head to the tail of the vehicle can be Figures 1 to 3 and Figure 5 the direction from bottom to top in

[0058] Combined with Figures 1 to 6 as shown, in the direction from the head to the tail of the vehicle, the support crossbeam 1 has opposite front ends 11 and tail ends 12. The front ends 11 of the two support crossbeams 1 are respectively used to connect with the corresponding shock absorber mounting seats 30, and the tail ends 12 of the two support crossbeams 1 are connected, and the connection part of the tail ends 12 of the two support crossbeams 1 is used to connect with the engine compartment 20.

[0059] That is to say, the connection part of the tail ends 12 of the two support crossbeams 1 and the engine compartment 20 is located on the side of the shock absorber mounting seat 30 facing the tail of the vehicle.

[0060] Among them, the connection of the tail ends 12 of the two support crossbeams 1 mentioned above means that when the support crossbeams 1 are not installed on the engine compartment 20, the two tail ends 12 of the support crossbeams 1 are in a connected state.

[0061] Exemplarily, referring to Figures 1 to 3 as shown, the front ends 11 of the two support crossbeams 1 are respectively connected with the corresponding shock absorber mounting seats 30, and the connection part of the tail ends 12 of the two support crossbeams 1 is connected with the engine compartment 20, so that a three-point structure can be formed at the connection part of the crossbeam assembly 10 and the engine compartment 20.

[0062] Since at least one of the support crossbeams 1 is inclined towards the direction close to the other support crossbeam 1, compared with the scheme of making all support crossbeams extend straight along the vehicle length direction, the support crossbeam 1 can be used to support the engine compartment 20 left and right along the vehicle width direction, so that the stiffness and strength of the engine compartment 20 in the left and right directions are improved, and the stability of the engine compartment 20 in the left and right directions is improved. Moreover, compared with the scheme of making all support crossbeams extend straight along the vehicle width direction, such a setting in this embodiment can support the engine compartment 20 front and back along the vehicle length direction through the support crossbeam 1, so that the stiffness and strength of the engine compartment 20 in the front and back directions are improved, and the stability of the engine compartment 20 in the front and back directions is improved.

[0063] Exemplarily, referring to Figure 2 as shown, when the shock absorber mounting seat 30 is subjected to a lateral impact force F1 extending along the vehicle width direction, the impact force F1 will at least act along Figure 2The dashed arrows in it are transmitted and dispersed through the support crossbeam 1. The support crossbeam 1 can generate a reaction force against at least part of the impact force F1 through its own torsional deformation, realizing reliable support for the engine compartment 20, preventing the engine compartment 20 from undergoing yaw deformation to a certain extent, improving the yaw mode, improving the cornering performance, and ensuring the handling stability and safety of the vehicle.

[0064] Exemplarily, referring to Figure 3 As shown, when the shock absorber mount 30 is subjected to a positive impact force F3 extending in the vehicle length direction, the impact force F3 will at least be along Figure 3 the dashed arrows in it are transmitted and dispersed through the support crossbeam 1. The support crossbeam 1 can also generate a reaction force against at least part of the impact force F3 through its own torsional deformation, realizing reliable support for the engine compartment 20, preventing the engine compartment 20 from undergoing torsional deformation to a certain extent, improving the torsional mode, and further ensuring the driving stability and safety of the vehicle.

[0065] The crossbeam assembly of the vehicle engine compartment provided in this embodiment, by arranging two support crossbeams 1, makes the two support crossbeams 1 correspond one by one to the two shock absorber mounts 30 on the engine compartment 20. By making each support crossbeam 1 extend along the direction from the vehicle head to the vehicle tail, and making at least one of the support crossbeams 1 inclined towards the direction close to the other support crossbeam 1; in the direction from the vehicle head to the vehicle tail, the support crossbeam 1 has opposite front end 11 and tail end 12. Connect the front ends 11 of the two support crossbeams 1 to the corresponding shock absorber mounts 30 respectively, connect the tail ends 12 of the two support crossbeams 1, and connect the connection part of the tail ends 12 of the two support crossbeams 1 to the engine compartment 20. In this way, since at least one of the crossbeams is inclined towards the direction close to the other support crossbeam 1, when the shock absorber mount 30 is subjected to a lateral impact force or a positive impact force, the impact force can be transmitted and dispersed through the crossbeam assembly 10, and the crossbeam assembly 10 can simultaneously support the engine compartment 20 left and right in the vehicle width direction and front and back in the vehicle length direction, thereby improving the stiffness and strength of the engine compartment 20, enhancing the ability of the engine compartment 20 to resist external impacts, strengthening the stability of the engine compartment 20, and further improving the yaw and torsional modes of the vehicle body. Especially, the stability and accuracy of the vehicle when driving on curves or uneven road surfaces and other road conditions are improved, thereby improving the handling stability of the vehicle and the cornering performance of the vehicle, and enhancing the driving safety of the whole vehicle.

[0066] In some embodiments, two suspensions are arranged between the wheel and the shock absorber mount 30, and the two suspensions correspond one by one to the two shock absorber mounts 30 respectively.

[0067] Among them, the suspension can transmit the force and torque on the wheel, and can also buffer the impact force transmitted from the road surface to the vehicle body to a certain extent to ensure the smooth driving of the vehicle.

[0068] Exemplarily, the suspension can be connected between the wheel and the shock absorber mount 30, and the shock absorber 301 is connected to the wheel through the suspension.

[0069] Specifically, in some embodiments, the suspension is configured as a double-wishbone suspension. In this way, compared with the solution using a MacPherson suspension, the handling and stability performance of the vehicle can be improved to a certain extent, ensuring the handling stability of the vehicle. At the same time, due to the setting of the crossbeam assembly 10, the overall stiffness and strength of the engine compartment 20 can be improved, and the yaw and torsion modes of the engine compartment 20 can be enhanced to ensure the handling stability of the vehicle, so that the advantages of the handling and stability performance of the double-wishbone suspension can be further effectively exerted, further improving the handling stability of the vehicle.

[0070] In some embodiments, referring to Figures 1 to 7 as shown, the engine compartment 20 is provided with a water trough assembly 201, and the tail ends 12 of the two support crossbeams 1 are respectively connected to the water trough assembly 201.

[0071] With such a setting, the impact force received by the shock absorber mount 30 can be dispersed by the support crossbeam 1 and transmitted to the water trough assembly 201. The water trough assembly 201 can effectively resist the impact force to ensure the supporting effect of the support crossbeam 1 on the engine compartment 20, further improving the overall stiffness and strength of the engine compartment 20, making the engine compartment 20 more stable, and thus further avoiding the deformation of the engine compartment 20, and the handling stability of the vehicle is better.

[0072] Exemplarily, the water trough assembly 201 is usually made of sheet metal (such as steel), so that the water trough assembly 201 has a relatively high structural strength, ensuring the stability of the connection between the water trough assembly 201 and the support crossbeam 1, and effectively resisting the impact force transmitted by the support crossbeam 1 to ensure the stable support of the support crossbeam 1 on the engine compartment 20.

[0073] In some embodiments, referring to Figures 1 to 8 as shown, the water trough assembly 201 includes a water trough body 202 and a fourth reinforcement member 203 connected to the water trough body 202. With such a setting, the structural strength of the water trough body 202 is enhanced through the fourth reinforcement member 203, ensuring the stability of the water trough body 202.

[0074] Exemplarily, the fourth reinforcement member 203 can be a reinforcing rib, a reinforcing plate, etc.

[0075] In some embodiments, referring to Figures 1 to 8 as shown, the tail ends 12 of the two support crossbeams 1 are respectively used to be connected to the water trough body 202, and the connection between the tail ends 12 of the two support crossbeams 1 and the water trough body 202 corresponds to at least part of the fourth reinforcement member 203.

[0076] In this way, while improving the strength of the water chute body 202, the structure of the water chute assembly 201 is reasonably utilized, making the connection between the tail ends 12 of the two support crossbeams 1 and the water chute assembly 201 more stable, further ensuring the impact resistance effect of the water chute assembly 201, thereby further improving the overall strength and stiffness of the engine compartment 20, further enhancing the yaw and torsion modes of the engine compartment 20, and making the vehicle's handling stability and safety higher.

[0077] Exemplarily, the water chute body 202 can be a groove-type structure, and the fourth reinforcing member 203 can be arranged in the groove. Wherein, the water chute assembly 201 can further include a cover plate (not shown in the figure), and the cover plate can be connected to the notch of the water chute body 202.

[0078] In some embodiments, referring to Figures 1 to 5 As shown, in the direction from the vehicle head to the vehicle tail, the two support crossbeams 1 extend obliquely towards each other.

[0079] Exemplarily, this can make the two support crossbeams 1 form an overall inverted V-shaped structure.

[0080] With this setting, both of the two support crossbeams 1 can support the engine compartment 20 both horizontally and longitudinally at the same time, thereby further improving the stability of the engine compartment 20, making the stiffness and strength of the engine compartment 20 higher, further enhancing the yaw and torsion modes of the engine compartment 20, and making the vehicle's handling stability and safety better.

[0081] In some embodiments, referring to Figures 2 to 3 As shown, the included angle a between the projection of the support crossbeam 1 on the horizontal plane and the connection line between the connection points of the two shock absorber mounting seats 30 and the engine compartment 20 is between 20° and 30°. Exemplarily, the included angle a can be 20°, 21°, 24°, 25°, 27°, 29°, 30°.

[0082] Exemplarily, in combination with Figure 2 and Figure 3 As shown, the connection line between the connection points of the two shock absorber mounting seats 30 and the engine compartment 20 can be L, and the included angle a between the projection of the support crossbeam 1 on the horizontal plane and the connection line L means: the included angle between the connection line from the center of the front end 11 to the center of the rear end of the projection of the support crossbeam 1 on the horizontal plane and the connection line L.

[0083] Referring to Figure 2As shown, for example, during vehicle cornering or the like, when the shock absorber mounting seat 30 on the left side is subjected to a lateral impact force F1 to the right, F1 is decomposed. Among them, the component force F2 of the impact force transmitted to the left support crossbeam 1 is proportional to F1*cos a. Therefore, when the angle a is too large, the component force F2 transmitted to the support crossbeam 1 is small. As a result, the effect of the support crossbeam 1 in dispersing the lateral impact force is poor, and the support effect of the support crossbeam 1 on the left and right directions of the engine compartment 20 is poor, making the engine compartment 20 prone to yaw deformation.

[0084] Referring to Figure 3 As shown, for example, during the process of the vehicle traveling on an uneven road surface, taking the left support crossbeam 1 as an example, the shock absorber mounting seat 30 will be subjected to a positive impact force F3. F3 is decomposed. Among them, the component force F4 of the impact force transmitted to the left support crossbeam 1 is proportional to F3*cos(90°-a). Therefore, when the angle a is too small, the component force F4 transmitted to the support crossbeam 1 is small. As a result, the effect of the support crossbeam 1 in dispersing the positive impact force is poor, and the support effect of the support crossbeam 1 on the front and rear directions of the engine compartment 20 is poor, making the engine compartment 20 prone to torsional deformation.

[0085] Therefore, by setting the angle a within the above range, it is possible to simultaneously ensure good support of the support crossbeam 1 for the engine compartment 20 in the left and right directions and the front and rear directions, further realizing the improvement of the overall stiffness and strength of the engine compartment 20.

[0086] In some embodiments, referring to Figure 4 As shown, the angle b between the projection of the support crossbeam 1 on the vertical plane and the connection line of the connection points of the two shock absorber mounting seats 30 and the engine compartment 20 is between 5° and 15°. For example, the angle b can be 5°, 7°, 9°, 10°, 11°, 13°, 15°.

[0087] Among them, the vertical plane can specifically be a plane perpendicular to the vehicle length direction. The angle b between the projection of the support crossbeam 1 on the vertical plane and the connection line L means: when looking straight from the head of the vehicle towards the tail direction, the angle between the connection line between the front end center and the rear end center of the projection of the support crossbeam 1 on the vertical plane and the connection line L.

[0088] In this way, for example, when the vehicle is traveling on an uneven road surface, causing the shock absorber mounting seat 30 to be subjected to a force along the vehicle height direction (i.e., Figure 4When there is an impact force F5 in the up-down direction (as shown), by forming an angle b between the projection of the support crossbeam 1 on the vertical plane and the line connecting the connection points of the two shock absorber mounts 30 and the engine nacelle 20, that is, when viewed from the head to the tail direction of the vehicle, the support crossbeam 1 can show a tendency to incline upwards, so that the impact force F5 can also be decomposed and transmitted along the support crossbeam 1. That is to say, in addition to supporting the engine nacelle 20 in the left-right direction and the front-back direction, the support crossbeam 1 can also support the engine nacelle 20 in the up-down direction, thereby being able to further improve the overall stiffness and strength of the engine nacelle 20 to better resist the impact forces in different directions received by the shock absorber mounts 30, and further improving the stability of the engine nacelle 20 in this way.

[0089] In some embodiments, referring to Figures 1 to 5 as shown, the two support crossbeams 1 are symmetrically arranged with respect to a symmetry axis, and the symmetry axis is the perpendicular bisector of the line connecting the connection points of the two shock absorber mounts 30 and the engine nacelle 20. Among them, the above-mentioned perpendicular bisector can refer to Figure 2 the dashed line M in

[0090] This can ensure the stability when the impact force is dispersed and transmitted along the support crossbeam 1, improve the uniformity of the force on the support crossbeam 1 to a certain extent, prevent the support crossbeam 1 from breaking and affecting the stable support of the engine nacelle 20, and thus can further improve the overall strength and stiffness of the engine nacelle 20.

[0091] In some embodiments, a second mounting portion is provided on the shock absorber mount 30. Referring to Figures 1 to 5 as shown, a first mounting portion 13 is provided on the support crossbeam 1, and the first mounting portion 13 is used to cooperate with the second mounting portion so that the support crossbeam 1 is detachably connected to the shock absorber mount 30.

[0092] This facilitates the replacement of the damaged component when one of the support crossbeam 1 and the shock absorber mount 30 is damaged, thereby preventing the scrapping of the whole of the support crossbeam 1 and the shock absorber mount 30, and being beneficial to saving the maintenance and use costs.

[0093] In some embodiments, referring to Figures 1 to 5 as shown, the first mounting portion 13 includes a first mounting hole, the second mounting portion includes a second mounting hole, and the support crossbeam 1 is connected to the shock absorber mount 30 through a first fastener 3 passing through the first mounting hole and the second mounting hole.

[0094] With such a setting, the connection between the support crossbeam 1 and the shock absorber mount 30 is convenient and the connection stability is high, thereby being able to ensure the strength and stiffness at the connection of the support crossbeam 1 and the shock absorber mount 30 to a certain extent, ensuring the stable support of the support crossbeam 1 for the engine nacelle 20, and further improving the stiffness and strength of the engine nacelle 20.

[0095] Exemplarily, the first fastener 3 can be a screw, a bolt, or the like.

[0096] Of course, in other embodiments, the first mounting portion 13 can also be a snap hole, and the second mounting portion can also be a snap that can extend into the snap hole and be snap-fitted with the snap hole.

[0097] In some embodiments, referring to Figure 6 as shown, the support cross beam 1 has a first cavity 14, and a first reinforcing member 141 is disposed in the first cavity 14.

[0098] By making the support cross beam 1 have the first cavity 14, while ensuring the stable support of the support cross beam 1 for the engine compartment 20, it is also beneficial to reduce the weight of the support cross beam 1, thereby realizing the lightweight design of the vehicle. At the same time, by providing the first reinforcing member 141, the structural strength of the support cross beam 1 is enhanced, and the support effect of the support cross beam 1 on the engine compartment 20 is further improved.

[0099] In some embodiments, referring to Figure 6 as shown, the support cross beam 1 includes a main body wall 15, a first side wall 16, and a second side wall 17. The first side wall 16 and the second side wall 17 are oppositely disposed, and the main body wall 15 is connected between the first side wall 16 and the second side wall 17 to jointly enclose and form the first cavity 14.

[0100] In this way, the first cavity 14 can be jointly defined by the first side wall 16, the second side wall 17, and the main body wall 15, while ensuring the reliable support of the support cross beam 1 for the engine compartment 20, and realizing the weight reduction design of the support cross beam 1 to a certain extent. Moreover, this makes the cavity also play a role in enhancing the structural strength of the support cross beam 1 to a certain extent, thereby further improving the support effect of the support cross beam 1 on the engine compartment 20.

[0101] In some embodiments, the first reinforcing member 141 is integrally formed with the support cross beam 1. This makes the overall structural strength of the first reinforcing member 141 and the support cross beam 1 high, which is beneficial to ensuring the structural strengthening effect of the first reinforcing member 141 on the support cross beam 1, thereby ensuring the reliable support of the support cross beam 1 for the engine compartment 20, and it is also convenient for subsequent assembly.

[0102] In some embodiments, referring to Figure 6 as shown, the first reinforcing member 141 includes at least two first reinforcing segments 142 that are sequentially connected end to end, and an angle is formed between two adjacent first reinforcing segments 142.

[0103] With such a setting, the strength at multiple different positions of the support crossbeam 1 can be enhanced by at least two first reinforcing sections 142, making the structural strength of the support crossbeam 1 higher and the support effect on the engine compartment 20 better. Moreover, since two adjacent first reinforcing sections 142 are connected end to end and form an angle, the structural strengthening effect of the first reinforcing member 141 on the support crossbeam 1 can be further improved.

[0104] Exemplarily, the first reinforcing section 142 can be a reinforcing rib, a reinforcing plate, etc.

[0105] In some embodiments, referring to Figures 1 to 7 As shown, the tail ends 12 of the two support crossbeams 1 are connected by an intermediate support beam 2, and the intermediate support beam 2 is used to connect to the engine compartment 20.

[0106] In this way, through the cooperation of the intermediate support beam 2 and the support crossbeam 1, the engine compartment 20 is supported in the left - right direction and the front - back direction, so as to improve the stiffness and strength of the engine compartment 20, enhance the yaw and torsion modes of the engine compartment 20, and thus improve the handling stability of the vehicle.

[0107] In some embodiments, a second fixing portion is provided on the engine compartment 20. Among them, a first fixing portion 21 is provided on the intermediate support beam 2, and the first fixing portion 21 is used to cooperate with the second fixing portion so that the intermediate support beam 2 is detachably connected to the engine compartment 20.

[0108] In this way, when one of the intermediate support beam 2 and the engine compartment 20 is damaged, it is convenient to replace the damaged component, thereby preventing the scrapping of the whole of the intermediate support beam 2 and the engine compartment 20, which is beneficial to saving the maintenance cost.

[0109] In some embodiments, referring to Figures 1 to 7 As shown, the first fixing portion 21 includes a first fixing hole, the second fixing portion includes a second fixing hole, and the intermediate support beam 2 is connected to the engine compartment 20 through a second fastener 4 passing through the first fixing hole and the second fixing hole.

[0110] In this way, through the cooperation between the first fixing hole and the second fixing hole, the connection stability between the intermediate support beam 2 and the engine compartment 20 is improved, so that the reliable connection between the intermediate support beam 2 and the engine compartment 20 can be ensured to a certain extent, ensuring the stable support of the crossbeam assembly 10 on the engine compartment 20, and further improving the stiffness and strength of the engine compartment 20.

[0111] Exemplarily, the second fastener 4 can be a screw, a bolt, etc.

[0112] In addition, in some other embodiments, the first fixing portion 21 can also be a clamping hole, and the second fixing portion is a buckle that can extend into the clamping hole and be matched and clamped with the clamping hole.

[0113] In some embodiments, referring to Figure 5 as shown, there are at least two first fixing parts 21, and at least two first fixing parts 21 are arranged at intervals on the middle support beam 2. The second fixing part is at least two, and is arranged in one-to-one correspondence with the first fixing part 21.

[0114] With this arrangement, the middle support beam 2 and the engine nacelle 20 can be connected from multiple different positions, so as to further ensure the stable connection between the middle support beam 2 and the engine nacelle 20, and further realize the reliable support of the crossbeam assembly 10 for the engine nacelle 20.

[0115] In some embodiments, referring to Figures 1 to 7 as shown, the middle support beam 2 includes a first beam body 22. The two ends of the first beam body 22 are respectively connected to the tail ends 12 of the two support crossbeams 1, and the first beam body 22 protrudes in a direction away from the shock absorber mounting seat 30. The first beam body 22 is used for connecting with the engine nacelle 20.

[0116] With this arrangement, it is convenient to realize the connection between the middle support beam 2 and the engine nacelle 20. Moreover, since the first beam body 22 protrudes in a direction away from the shock absorber mounting seat 30, a gap can be formed between the support crossbeam 1 and the first beam body 22 while realizing the connection between the middle support beam 2 and the engine nacelle 20. This gap can avoid components at the engine nacelle 20 to a certain extent, which is beneficial to realizing the convenient installation of the crossbeam assembly 10 and optimizing the layout space of components at the engine nacelle 20.

[0117] In some embodiments, referring to Figure 5 and Figure 6 as shown, the middle support beam 2 further includes a second beam body 23. The second beam body 23 is arranged on the side of the first beam body 22 facing the shock absorber mounting seat 30. The two ends of the second beam body 23 are respectively connected to the tail ends 12 of the two support crossbeams 1. Referring to Figure 6 , a gap 24 is formed between the second beam body 23 and the first beam body 22.

[0118] In this way, through the cooperation of the second beam body 23 and the first beam body 22, the support effect of the crossbeam assembly 10 on the engine nacelle 20 can be further improved, the strength and stiffness of the engine nacelle 20 are further improved, and the yaw and torsion modes of the engine nacelle 20 are further enhanced, and the handling stability of the vehicle is higher. Moreover, since a gap 24 is formed between the second beam body 23 and the first beam body 22, while ensuring the support effect of the crossbeam assembly 10 on the engine nacelle 20, the weight reduction design of the crossbeam assembly 10 and the vehicle can be realized to a certain extent, which is beneficial to realizing the lightweight of the vehicle.

[0119] In some embodiments, referring to Figure 5 and Figure 7 as shown, a second reinforcing member 25 is arranged on the middle support beam 2.

[0120] With such an arrangement, the stiffness and strength of the intermediate support beam 2 can be enhanced by the second reinforcing member 25, which is beneficial to ensuring the stable connection between the intermediate support beam 2 and the engine compartment 20. Furthermore, the supporting effect of the crossbeam assembly 10 on the engine compartment 20 can be improved, which is beneficial to further enhancing the overall strength and stiffness of the engine compartment 20.

[0121] In some embodiments, referring to Figure 5 and Figure 7 as shown, at least part of the second reinforcing member 25 is arranged close to the connection between the intermediate support beam 2 and the engine compartment 20.

[0122] With such an arrangement, the structure at the connection between the intermediate support beam 2 and the engine compartment 20 can be strengthened to improve the reliability of the connection between the intermediate support beam 2 and the engine compartment 20, and further ensure the supporting effect of the crossbeam assembly 10 on the engine compartment 20.

[0123] In some embodiments, the second reinforcing member 25 is integrally formed with the intermediate support beam 2, which results in a high overall structural strength of the second reinforcing member 25 and the intermediate support beam 2. This is beneficial to ensuring the structural strengthening effect of the second reinforcing member 25 on the intermediate support beam 2, ensuring the reliable support of the crossbeam assembly 10 on the engine compartment 20, and facilitating subsequent assembly.

[0124] In some embodiments, referring to Figure 6 as shown, the intermediate support beam 2 has a second cavity 26, and a third reinforcing member 261 is arranged in the second cavity 26.

[0125] By providing the intermediate support beam 2 with the second cavity 26, while ensuring the connection stability between the intermediate support beam 2 and the engine compartment 20 and the stable support of the crossbeam assembly 10 on the engine compartment 20, the weight of the intermediate support beam 2 can be reduced to a certain extent, thus achieving the lightweight design of the vehicle. At the same time, by arranging the third reinforcing member 261, the structural strength of the intermediate support beam 2 is enhanced, and the supporting effect of the crossbeam assembly 10 on the engine compartment 20 is further improved.

[0126] Among them, referring to Figure 6 as shown, the third reinforcing member 261 includes at least two second reinforcing segments 262 connected end to end in sequence, and an included angle is formed between two adjacent second reinforcing segments 262.

[0127] With such an arrangement, the strength at multiple different positions of the intermediate support beam 2 can be enhanced by at least two second reinforcing segments 262, making the structural strength of the intermediate support beam 2 higher and the supporting effect on the engine compartment 20 better. Moreover, since two adjacent second reinforcing segments 262 are connected end to end and form an included angle, the structural strengthening effect of the third reinforcing member 261 on the intermediate support beam 2 can be further improved.

[0128] Exemplarily, the second reinforcing section 262 can be a reinforcing rib, a reinforcing plate, etc.

[0129] In some embodiments, the intermediate support beam 2 and the support crossbeam 1 are integrally formed.

[0130] This makes the overall structural strength of the support crossbeam 1 and the intermediate support beam 2 high, so that the stable support of the support crossbeam 1 for the engine compartment 20 can be further ensured, the strength and stiffness of the engine compartment 20 are further improved, the yaw and torsion modes of the engine compartment 20 are better, and the handling stability of the vehicle is higher.

[0131] In some embodiments, referring to Figures 1 to 5 as shown, the joint between the intermediate support beam 2 and the support crossbeam 1 has a smooth transition.

[0132] Such a setting can, to a certain extent, avoid stress concentration at the joint between the intermediate support beam 2 and the support crossbeam 1, thereby preventing the joint between the intermediate support beam 2 and the support crossbeam 1 from breaking, ensuring the structural strength and stability of the support crossbeam 1, and further facilitating ensuring the support effect of the support crossbeam 1 on the engine compartment 20.

[0133] In specific implementation, since aluminum has the advantages of light weight and high strength, in order to ensure the structural strength of the crossbeam assembly 10 to improve the support effect on the engine compartment 20 while realizing the lightweight design of the crossbeam assembly 10, in some embodiments, the support crossbeam 1 and / or the intermediate support beam 2 is a cast aluminum beam.

[0134] Such a setting can, while realizing reliable support for the engine compartment 20 to improve the yaw and torsion modes of the engine compartment 20, also realize the lightweight design of the crossbeam assembly 10 and the vehicle.

[0135] Of course, in other implementation manners, the support crossbeam 1 and / or the intermediate support beam 2 can also be a steel beam.

[0136] In some embodiments, referring to Figures 5 to 6 as shown, a fixing portion 5 is provided on the support crossbeam 1 and / or the intermediate support beam 2, and the fixing portion 5 is used to fix a preset component on the vehicle.

[0137] Such a setting enables the support crossbeam 1 to not only support the engine compartment 20 but also fix the preset component on the vehicle, ensuring the stability of the preset component during vehicle driving.

[0138] Exemplarily, for example, when the preset component is a wire harness, this can also improve the neatness of wire harness layout, realize the regularization and fixation of the wire harness to a certain extent, and prevent problems such as abnormal noise and interference between the wire harness and the engine compartment 20, etc.

[0139] In addition, the preset component can be a component such as a pipeline that basically does not move accidentally by itself during vehicle driving, in addition to being a wire harness.

[0140] In some embodiments, referring to Figure 6 As shown, the fixing portion 5 includes a base plate 51 provided at the edge of the support cross beam 1 and / or the intermediate support beam 2, and a third fixing hole 52 provided on the base plate 51. The third fixing hole 52 is used to fix the preset component.

[0141] With such a setting, since the base plate 51 provided with the third fixing hole 52 is located at the edge of the support cross beam 1 and / or the intermediate support beam 2, while realizing the fixing of the preset component, it will not affect the structural strength of the support cross beam 1 and the intermediate support beam 2 itself, which is beneficial to ensuring the support effect of the cross beam assembly 10 on the engine compartment 20, and further ensuring the stiffness and strength of the engine compartment 20.

[0142] Exemplarily, the preset component can have a connection hole, and the preset component can be fixed on the support cross beam 1 by screws or the like passing through the third fixing hole 52 and the connection hole; or, the preset component can also be fixedly tied to the third fixing hole 52 by ropes, cable ties, etc. Of course, the fixing portion 5 can also be a fixing hook, for example, the preset component can be hung at the fixing hook.

[0143] In some embodiments, the base plate 51 is integrally formed with the support cross beam 1 and / or the intermediate support beam 2. This makes the overall structural strength of the base plate 51 and the support cross beam 1 and / or the intermediate support beam 2 high, so as to further ensure the reliable fixing of the preset component.

[0144] Referring to Figure 5 and Figure 6 As shown, the fixing portion 5 can be set to at least two, and at least two fixing portions 5 are arranged at intervals on the support cross beam 1 and / or the intermediate support beam 2. In this way, the preset component can be fixed at multiple positions to improve the reliability of the fixing, or different preset components can be fixed at each fixing portion 5 respectively to improve the applicability.

[0145] This embodiment also provides a vehicle engine compartment assembly, including an engine compartment 20, a shock absorber mounting seat 30, and a cross beam assembly 10 of the vehicle engine compartment.

[0146] The cross beam assembly 10 of the vehicle engine compartment and the cross beam assembly 10 of the vehicle engine compartment provided in the above embodiment have the same structure and implementation principle, and can bring the same or similar technical effects, which will not be elaborated one by one here. For details, reference can be made to the description of the above embodiment.

[0147] This embodiment also provides a vehicle. The vehicle includes the cross beam assembly 10 of the vehicle engine compartment or the vehicle includes the vehicle engine compartment assembly.

[0148] The crossbeam assembly 10 of the vehicle engine compartment, the vehicle engine compartment assembly, and the crossbeam assembly 10 of the vehicle engine compartment provided in the above embodiment have the same structure and implementation principle, and can bring the same or similar technical effects, which will not be elaborated one by one here. For details, reference can be made to the description of the above embodiment.

[0149] In this document, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. In addition, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0150] In this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0151] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A crossbeam assembly for a vehicle cabin, characterized in that: It comprises two supporting cross beams (1), wherein the two supporting cross beams (1) correspond one to one with two shock absorber mounting seats (30) on the cabin (20); Each of the supporting cross beams (1) extends in a direction from the front to the rear of the vehicle, and at least one of the supporting cross beams (1) is tilted toward a direction close to another of the supporting cross beams (1); In the direction from the front of the vehicle to the rear of the vehicle, the support beam (1) has a front end (11) and a rear end (12) opposite to each other, the front ends (11) of the two support beams (1) are used to be connected to the corresponding shock absorber mounting seats (30) respectively, the rear ends (12) of the two support beams (1) are connected, and the connection between the rear ends (12) of the two support beams (1) is used to be connected to the cabin (20).

2. The cross beam assembly of the vehicle cabin according to claim 1, characterized in that: In the direction from the front of the vehicle to the rear of the vehicle, the two supporting cross beams (1) extend obliquely in a direction approaching each other.

3. The cross beam assembly of the vehicle engine compartment according to claim 2, characterized in that: The angle between the projection of the supporting crossbeam (1) on the horizontal plane and the line connecting the connection points of the two shock absorber mounting seats (30) and the cabin (20) is between 20° and 30°; And / or, the two supporting beams (1) are symmetrically arranged about a symmetry axis, and the symmetry axis is a perpendicular midline of a line connecting the connection points of the two shock absorber mounting seats (30) and the cabin (20); And / or, the angle between the projection of the supporting crossbeam (1) on the vertical plane and the line connecting the connection points of the two shock absorber mounting seats (30) and the cabin (20) is between 5° and 15°.

4. The cross beam assembly of the vehicle cabin according to claim 1, characterized in that: The supporting crossbeam (1) is provided with a first mounting portion (13), and the first mounting portion (13) is used to cooperate with a second mounting portion on the shock absorber mounting seat (30), so that the supporting crossbeam (1) and the shock absorber mounting seat (30) are detachably connected; The first mounting portion (13) comprises a first mounting hole, the second mounting portion comprises a second mounting hole, and the supporting crossbeam (1) is connected to the shock absorber mounting seat (30) via a first fastener (3) passing through the first mounting hole and the second mounting hole.

5. The cross beam assembly of the vehicle engine compartment according to claim 1, characterized in that: The supporting crossbeam (1) has a first cavity (14), and a first reinforcement member (141) is arranged in the first cavity (14); The supporting crossbeam (1) comprises a main body wall (15), a first side wall (16) and a second side wall (17), wherein the first side wall (16) and the second side wall (17) are arranged opposite to each other, and the main body wall (15) is connected between the first side wall (16) and the second side wall (17) to jointly enclose and form the first cavity (14); and / or, the first reinforcement member (141) is integrally formed with the supporting crossbeam (1); and / or, the first reinforcement member (141) comprises at least two first reinforcement sections (142) connected end to end in sequence, and an angle is formed between two adjacent first reinforcement sections (142).

6. The cross beam assembly of a vehicle engine compartment according to any one of claims 1 to 5, characterized in that: The tail ends (12) of the two supporting cross beams (1) are connected via an intermediate supporting beam (2), and the intermediate supporting beam (2) is used to be connected to the cabin (20).

7. The cross beam assembly of the vehicle engine compartment according to claim 6, characterized in that: The intermediate support beam (2) is provided with a first fixing portion (21), and the first fixing portion (21) is used to cooperate with a second fixing portion (5) on the cabin (20) so that the intermediate support beam (2) and the cabin (20) are detachably connected; The first fixing portion (21) includes a first fixing hole, the second fixing portion (5) includes a second fixing hole, and the intermediate support beam (2) is connected to the cabin (20) via a second fastener (4) inserted through the first fixing hole and the second fixing hole; and / or, there are at least two first fixing portions (21), at least two of the first fixing portions (21) are arranged at intervals on the intermediate support beam (2), and there are at least two second fixing portions (5), which are arranged one-to-one with the first fixing portions (21).

8. The cross beam assembly of the vehicle cabin according to claim 6, characterized in that: The intermediate support beam (2) comprises a first beam body (22), two ends of the first beam body (22) are respectively connected to the tail ends (12) of the two support cross beams (1), and the first beam body (22) protrudes in a direction away from the shock absorber mounting seat (30), and the first beam body (22) is used to be connected to the cabin (20); The intermediate support beam (2) further comprises a second beam body (23), the second beam body (23) being arranged on a side of the first beam body (22) facing the shock absorber mounting seat (30), the two ends of the second beam body (23) being respectively connected to the rear ends (12) of the two supporting cross beams (1), and a gap (24) being formed between the second beam body (23) and the first beam body (22).

9. The cross beam assembly of the vehicle engine compartment according to claim 6, characterized in that: A second reinforcement member (25) is provided on the intermediate support beam (2); At least part of the second reinforcement member (25) is arranged close to the connection between the intermediate support beam (2) and the cabin (20); and / or the second reinforcement member (25) and the intermediate support beam (2) are integrally formed.

10. The cross beam assembly of the vehicle cabin according to claim 6, characterized in that: The intermediate support beam (2) has a second cavity (26), and a third reinforcement member (261) is arranged in the second cavity (26); The third reinforcement member (261) comprises at least two second reinforcement segments (262) connected end to end in sequence, and an angle is formed between two adjacent second reinforcement segments (262); And / or, the intermediate support beam (2) and the support cross beam (1) are integrally formed; And / or, the intermediate support beam (2) is a cast aluminum beam; And / or, the supporting beam (1) is a cast aluminum beam; And / or, the junction between the intermediate support beam (2) and the support cross beam (1) has a smooth transition.

11. The cross beam assembly of a vehicle engine compartment according to any one of claims 1 to 5, characterized in that: The cabin (20) is provided with a water flow trough assembly (201), and the tail ends (12) of the two supporting cross beams (1) are respectively used to be connected to the water flow trough assembly (201); The water flow channel assembly (201) comprises a water flow channel body (202) and a fourth reinforcement member (203) connected to the water flow channel body (202); The tail ends (12) of the two supporting beams (1) are respectively used to be connected to the water trough body (202), and the connection between the tail ends (12) of the two supporting beams (1) and the water trough body (202) corresponds to at least part of the fourth reinforcement member (203).

12. The cross beam assembly of a vehicle cabin according to claim 6, characterized in that: The supporting cross beam (1) and / or the intermediate supporting beam (2) are provided with a fixing portion (5), and the fixing portion (5) is used to fix a preset component on the vehicle; The fixing portion (5) comprises a base plate (51) arranged on the edge of the supporting cross beam (1) and / or the intermediate supporting beam (2), and a third fixing hole (52) arranged on the base plate (51); the third fixing hole (52) is used to fix the preset component; The base plate (51) is integrally formed with the supporting cross beam (1) and / or the intermediate supporting beam (2).

13. A vehicle cabin assembly, characterized in that: A crossbeam assembly (10) for a vehicle nacelle comprising a nacelle (20), a shock absorber mounting seat (30), and the nacelle according to any one of claims 1 to 12.

14. A vehicle, characterized in that: A crossbeam assembly (10) for a vehicle cabin comprising the crossbeam assembly (10) according to any one of claims 1 to 12; Alternatively, the vehicle comprises the vehicle cabin assembly as claimed in claim 13.

15. The vehicle according to claim 14, characterized in that Two suspensions are arranged between the wheels of the vehicle and the shock absorber mounting seats (30), and the two suspensions correspond one to one with the two shock absorber mounting seats (30) respectively; The suspension is a double wishbone suspension.

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